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Lysosomal dysfunction in Down syndrome and Alzheimer mouse models is caused by v-ATPase inhibition by Tyr682-phosphorylated APP βCTF

Im, Eunju; Jiang, Ying; Stavrides, Philip H; Darji, Sandipkumar; Erdjument-Bromage, Hediye; Neubert, Thomas A; Choi, Jun Yong; Wegiel, Jerzy; Lee, Ju-Hyun; Nixon, Ralph A
Lysosome dysfunction arises early and propels Alzheimer's disease (AD). Herein, we show that amyloid precursor protein (APP), linked to early-onset AD in Down syndrome (DS), acts directly via its β-C-terminal fragment (βCTF) to disrupt lysosomal vacuolar (H+)-adenosine triphosphatase (v-ATPase) and acidification. In human DS fibroblasts, the phosphorylated 682YENPTY internalization motif of APP-βCTF binds selectively within a pocket of the v-ATPase V0a1 subunit cytoplasmic domain and competitively inhibits association of the V1 subcomplex of v-ATPase, thereby reducing its activity. Lowering APP-βCTF Tyr682 phosphorylation restores v-ATPase and lysosome function in DS fibroblasts and in vivo in brains of DS model mice. Notably, lowering APP-βCTF Tyr682 phosphorylation below normal constitutive levels boosts v-ATPase assembly and activity, suggesting that v-ATPase may also be modulated tonically by phospho-APP-βCTF. Elevated APP-βCTF Tyr682 phosphorylation in two mouse AD models similarly disrupts v-ATPase function. These findings offer previously unknown insight into the pathogenic mechanism underlying faulty lysosomes in all forms of AD.
PMCID:10371027
PMID: 37494443
ISSN: 2375-2548
CID: 5592302

Autophagy is a novel pathway for neurofilament protein degradation in vivo

Rao, Mala V; Darji, Sandipkumar; Stavrides, Philip H; Goulbourne, Chris N; Kumar, Asok; Yang, Dun-Sheng; Yoo, Lang; Peddy, James; Lee, Ju-Hyun; Yuan, Aidong; Nixon, Ralph A
How macroautophagy/autophagy influences neurofilament (NF) proteins in neurons, a frequent target in neurodegenerative diseases and injury, is not known. NFs in axons have exceptionally long half-lives in vivo enabling formation of large stable supporting networks, but they can be rapidly degraded during Wallerian degeneration initiated by a limited calpain cleavage. Here, we identify autophagy as a previously unrecognized pathway for NF subunit protein degradation that modulates constitutive and inducible NF turnover in vivo. Levels of NEFL/NF-L, NEFM/NF-M, and NEFH/NF-H subunits rise substantially in neuroblastoma (N2a) cells after blocking autophagy either with the phosphatidylinositol 3-kinase (PtdIns3K) inhibitor 3-methyladenine (3-MA), by depleting ATG5 expression with shRNA, or by using both treatments. In contrast, activating autophagy with rapamycin significantly lowers NF levels in N2a cells. In the mouse brain, NF subunit levels increase in vivo after intracerebroventricular infusion of 3-MA. Furthermore, using tomographic confocal microscopy, immunoelectron microscopy, and biochemical fractionation, we demonstrate the presence of NF proteins intra-lumenally within autophagosomes (APs), autolysosomes (ALs), and lysosomes (LYs). Our findings establish a prominent role for autophagy in NF proteolysis. Autophagy may regulate axon cytoskeleton size and responses of the NF cytoskeleton to injury and disease.
PMID: 36131358
ISSN: 1554-8635
CID: 5335462

Autolysosomal acidification failure as a primary driver of Alzheimer disease pathogenesis

Lee, Ju-Hyun; Nixon, Ralph A
Genetic evidence has increasingly linked lysosome dysfunction to an impaired autophagy-lysosomal pathway (ALP) flux in Alzheimer disease (AD) although the relationship of these abnormalities to other pathologies is unclear. In our recent investigation on the origin of impaired autophagic flux in AD, we established the critical early role of defective lysosomes in 5 mouse AD models. To assess in vivo alterations of autophagy and ALP vesicle acidification, we expressed eGFP-mRFP-LC3 specifically in neurons. We discovered that autophagy dysfunction in these models arises from exceptionally early failure of autolysosome/lysosome acidification, which then drives downstream AD pathogenesis. Extreme autophagic stress in compromised but still intact neurons causes AVs containing toxic APP metabolites, Aβ/β-CTFs, to pack into huge blebs and protrude from the perikaryon membrane. Most notably, AVs also coalesce with ER tubules and yield fibrillar β-amyloid within these tubules. Collectively, amyloid immunoreactivity within these intact neurons assumes the appearance of amyloid-plaques and, indeed, their eventual death transforms them into extracellular plaque lesions. Quantitative analysis confirms that neurons undergoing this transformation are the principal source of β-amyloid-plaques in APP-AD models. These findings prompt reconsideration of the conventionally accepted sequence of events in plaque formation and may help explain the inefficacy of Aβ/amyloid vaccine therapies.
PMID: 35947489
ISSN: 1554-8635
CID: 5286952

Faulty autolysosome acidification in Alzheimer's disease mouse models induces autophagic build-up of Aβ in neurons, yielding senile plaques

Lee, Ju-Hyun; Yang, Dun-Sheng; Goulbourne, Chris N; Im, Eunju; Stavrides, Philip; Pensalfini, Anna; Chan, Han; Bouchet-Marquis, Cedric; Bleiwas, Cynthia; Berg, Martin J; Huo, Chunfeng; Peddy, James; Pawlik, Monika; Levy, Efrat; Rao, Mala; Staufenbiel, Mathias; Nixon, Ralph A
Autophagy is markedly impaired in Alzheimer's disease (AD). Here we reveal unique autophagy dysregulation within neurons in five AD mouse models in vivo and identify its basis using a neuron-specific transgenic mRFP-eGFP-LC3 probe of autophagy and pH, multiplex confocal imaging and correlative light electron microscopy. Autolysosome acidification declines in neurons well before extracellular amyloid deposition, associated with markedly lowered vATPase activity and build-up of Aβ/APP-βCTF selectively within enlarged de-acidified autolysosomes. In more compromised yet still intact neurons, profuse Aβ-positive autophagic vacuoles (AVs) pack into large membrane blebs forming flower-like perikaryal rosettes. This unique pattern, termed PANTHOS (poisonous anthos (flower)), is also present in AD brains. Additional AVs coalesce into peri-nuclear networks of membrane tubules where fibrillar β-amyloid accumulates intraluminally. Lysosomal membrane permeabilization, cathepsin release and lysosomal cell death ensue, accompanied by microglial invasion. Quantitative analyses confirm that individual neurons exhibiting PANTHOS are the principal source of senile plaques in amyloid precursor protein AD models.
PMID: 35654956
ISSN: 1546-1726
CID: 5236172

Axonal transport of late endosomes and amphisomes is selectively modulated by local Ca2+ efflux and disrupted by PSEN1 loss of function

Lie, Pearl P Y; Yoo, Lang; Goulbourne, Chris N; Berg, Martin J; Stavrides, Philip; Huo, Chunfeng; Lee, Ju-Hyun; Nixon, Ralph A
Dysfunction and mistrafficking of organelles in autophagy- and endosomal-lysosomal pathways are implicated in neurodegenerative diseases. Here, we reveal selective vulnerability of maturing degradative organelles (late endosomes/amphisomes) to disease-relevant local calcium dysregulation. These organelles undergo exclusive retrograde transport in axons, with occasional pauses triggered by regulated calcium efflux from agonist-evoked transient receptor potential cation channel mucolipin subfamily member 1 (TRPML1) channels-an effect greatly exaggerated by exogenous agonist mucolipin synthetic agonist 1 (ML-SA1). Deacidification of degradative organelles, as seen after Presenilin 1 (PSEN1) loss of function, induced pathological constitutive "inside-out" TRPML1 hyperactivation, slowing their transport comparably to ML-SA1 and causing accumulation in dystrophic axons. The mechanism involved calcium-mediated c-Jun N-terminal kinase (JNK) activation, which hyperphosphorylated dynein intermediate chain (DIC), reducing dynein activity. Blocking TRPML1 activation, JNK activity, or DIC1B serine-80 phosphorylation reversed transport deficits in PSEN1 knockout neurons. Our results, including features demonstrated in Alzheimer-mutant PSEN1 knockin mice, define a mechanism linking dysfunction and mistrafficking in lysosomal pathways to neuritic dystrophy under neurodegenerative conditions.
PMCID:9054012
PMID: 35486730
ISSN: 2375-2548
CID: 5217702

Endosomal Dysfunction Induced by Directly Overactivating Rab5 Recapitulates Prodromal and Neurodegenerative Features of Alzheimer's Disease

Pensalfini, Anna; Kim, Seonil; Subbanna, Shivakumar; Bleiwas, Cynthia; Goulbourne, Chris N; Stavrides, Philip H; Jiang, Ying; Lee, Ju-Hyun; Darji, Sandipkumar; Pawlik, Monika; Huo, Chunfeng; Peddy, James; Berg, Martin J; Smiley, John F; Basavarajappa, Balapal S; Nixon, Ralph A
Neuronal endosomal dysfunction, the earliest known pathobiology specific to Alzheimer's disease (AD), is mediated by the aberrant activation of Rab5 triggered by APP-β secretase cleaved C-terminal fragment (APP-βCTF). To distinguish pathophysiological consequences specific to overactivated Rab5 itself, we activate Rab5 independently from APP-βCTF in the PA-Rab5 mouse model. We report that Rab5 overactivation alone recapitulates diverse prodromal and degenerative features of AD. Modest neuron-specific transgenic Rab5 expression inducing hyperactivation of Rab5 comparable to that in AD brain reproduces AD-related Rab5-endosomal enlargement and mistrafficking, hippocampal synaptic plasticity deficits via accelerated AMPAR endocytosis and dendritic spine loss, and tau hyperphosphorylation via activated glycogen synthase kinase-3β. Importantly, Rab5-mediated endosomal dysfunction induces progressive cholinergic neurodegeneration and impairs hippocampal-dependent memory. Aberrant neuronal Rab5-endosome signaling, therefore, drives a pathogenic cascade distinct from β-amyloid-related neurotoxicity, which includes prodromal and neurodegenerative features of AD, and suggests Rab5 overactivation as a potential therapeutic target.
PMID: 33238112
ISSN: 2211-1247
CID: 4680792

β2-adrenergic Agonists Rescue Lysosome Acidification and Function in PSEN1 Deficiency by Reversing Defective ER-to-lysosome Delivery of ClC-7

Lee, Ju-Hyun; Wolfe, Devin M; Darji, Sandipkumar; McBrayer, Mary Kate; Colacurcio, Daniel J; Kumar, Asok; Stavrides, Philip; Mohan, Panaiyur S; Nixon, Ralph A
Lysosomal dysfunction is considered pathogenic in Alzheimer disease (AD). Loss of presenilin-1 (PSEN1) function causing AD impedes acidification via defective vacuolar ATPase (vATPase) V0a1 subunit delivery to lysosomes. We report that isoproterenol (ISO) and related β2-adrenergic agonists reacidify lysosomes in PSEN1 Knock out (KO) cells and fibroblasts from PSEN1 familial AD patients, which restores lysosomal proteolysis, calcium homeostasis, and normal autophagy flux. We identify a novel rescue mechanism involving Portein Kinase A (PKA)-mediated facilitation of chloride channel-7 (ClC-7) delivery to lysosomes which reverses markedly lowered chloride (Cl-) content in PSEN1 KO lysosomes. Notably, PSEN1 loss of function impedes Endoplasmic Reticulum (ER)-to-lysosome delivery of ClC-7. Transcriptomics of PSEN1-deficient cells reveals strongly downregulated ER-to-lysosome transport pathways and reversibility by ISO, thus accounting for lysosomal Cl- deficits that compound pH elevation due to deficient vATPase and its rescue by β2-adrenergic agonists. Our findings uncover a broadened PSEN1 role in lysosomal ion homeostasis and novel pH modulation of lysosomes through β2-adrenergic regulation of ClC-7, which can potentially be modulated therapeutically.
PMID: 32105735
ISSN: 1089-8638
CID: 4394692

Transgenic expression of a ratiometric autophagy probe specifically in neurons enables the interrogation of brain autophagy in vivo

Lee, Ju-Hyun; Rao, Mala V; Yang, Dun-Sheng; Stavrides, Philip; Im, Eunju; Pensalfini, Anna; Huo, Chunfeng; Sarkar, Pallabi; Yoshimori, Tamotsu; Nixon, Ralph A
Autophagy-lysosome pathway (ALP) disruption is considered pathogenic in multiple neurodegenerative diseases; however, current methods are inadequate to investigate macroautophagy/autophagy flux in brain in vivo and its therapeutic modulation. Here, we describe a novel autophagy reporter mouse (TRGL6) stably expressing a dual-fluorescence-tagged LC3 (tfLC3, mRFP-eGFP-LC3) by transgenesis selectively in neurons. The tfLC3 probe distributes widely in the central nervous system, including spinal cord. Expression levels were similar to endogenous LC3 and induced no detectable ALP changes. This ratiometric reporter registers differential pH-dependent changes in color as autophagosomes form, fuse with lysosomes, acidify, and degrade substrates within autolysosomes. We confirmed predicted changes in neuronal autophagy flux following specific experimental ALP perturbations. Furthermore, using a third fluorescence label in TRGL6 brains to identify lysosomes by immunocytochemistry, we validated a novel procedure to detect defective autolysosomal acidification in vivo. Thus, TRGL6 mice represent a unique tool to investigate in vivo ALP dynamics in specific neuron populations in relation to neurological diseases, aging, and disease modifying agents. Abbreviations: ACTB: actin, beta; AD: Alzheimer disease; AL: autolysosomes; ALP: autophagy-lysosome pathway; AP: autophagosome; APP: amyloid beta (Abeta) precursor protein; ATG5: autophagy related 5; ATG7: autophagy related 7; AV: autophagic vacuoles; CNS: central nervous system; CTSD: cathepsin D; CQ: chloroquine; DMEM: Dulbecco's modified Eagle's medium; GFP: green fluorescent protein; GABARAP: gamma-aminobutyric acid receptor associated protein; GABARAPL2/GATE16: gamma-aminobutyric acid (GABA) receptor-associated protein-like 2; ICC: immunocytochemistry; ICV: intra-cerebroventricular; LAMP2: lysosomal-associated membrane protein 2; Leup: leupeptin; LY: lysosomes; MAP1LC3/LC3: microtubule-associated protein 1 light chain 3; MTOR: mechanistic target of rapamycin kinase; RBFOX3/NeuN: RNA binding protein, fox-1 homolog (C. elegans) 3; RFP: red fluorescent protein; RPS6KB1: ribosomal protein S6 kinase, polypeptide 1; SDS-PAGE: sodium dodecyl sulfate-polyacrylamide gel electrophoresis; SQSTM1: sequestosome 1; tfLC3: mRFP-eGFP-LC3; TRGL6: Thy1 mRFP eGFP LC3-line 6; PCR: polymerase chain reaction; PD: Parkinson disease.
PMID: 30269645
ISSN: 1554-8635
CID: 3631072

Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition) [Guideline]

Klionsky, Daniel J; Abdelmohsen, Kotb; Abe, Akihisa; Abedin, Md Joynal; Abeliovich, Hagai; Acevedo Arozena, Abraham; Adachi, Hiroaki; Adams, Christopher M; Adams, Peter D; Adeli, Khosrow; Adhihetty, Peter J; Adler, Sharon G; Agam, Galila; Agarwal, Rajesh; Aghi, Manish K; Agnello, Maria; Agostinis, Patrizia; Aguilar, Patricia V; Aguirre-Ghiso, Julio; Airoldi, Edoardo M; Ait-Si-Ali, Slimane; Akematsu, Takahiko; Akporiaye, Emmanuel T; Al-Rubeai, Mohamed; Albaiceta, Guillermo M; Albanese, Chris; Albani, Diego; Albert, Matthew L; Aldudo, Jesus; Algul, Hana; Alirezaei, Mehrdad; Alloza, Iraide; Almasan, Alexandru; Almonte-Beceril, Maylin; Alnemri, Emad S; Alonso, Covadonga; Altan-Bonnet, Nihal; Altieri, Dario C; Alvarez, Silvia; Alvarez-Erviti, Lydia; Alves, Sandro; Amadoro, Giuseppina; Amano, Atsuo; Amantini, Consuelo; Ambrosio, Santiago; Amelio, Ivano; Amer, Amal O; Amessou, Mohamed; Amon, Angelika; An, Zhenyi; Anania, Frank A; Andersen, Stig U; Andley, Usha P; Andreadi, Catherine K; Andrieu-Abadie, Nathalie; Anel, Alberto; Ann, David K; Anoopkumar-Dukie, Shailendra; Antonioli, Manuela; Aoki, Hiroshi; Apostolova, Nadezda; Aquila, Saveria; Aquilano, Katia; Araki, Koichi; Arama, Eli; Aranda, Agustin; Araya, Jun; Arcaro, Alexandre; Arias, Esperanza; Arimoto, Hirokazu; Ariosa, Aileen R; Armstrong, Jane L; Arnould, Thierry; Arsov, Ivica; Asanuma, Katsuhiko; Askanas, Valerie; Asselin, Eric; Atarashi, Ryuichiro; Atherton, Sally S; Atkin, Julie D; Attardi, Laura D; Auberger, Patrick; Auburger, Georg; Aurelian, Laure; Autelli, Riccardo; Avagliano, Laura; Avantaggiati, Maria Laura; Avrahami, Limor; Awale, Suresh; Azad, Neelam; Bachetti, Tiziana; Backer, Jonathan M; Bae, Dong-Hun; Bae, Jae-Sung; Bae, Ok-Nam; Bae, Soo Han; Baehrecke, Eric H; Baek, Seung-Hoon; Baghdiguian, Stephen; Bagniewska-Zadworna, Agnieszka; Bai, Hua; Bai, Jie; Bai, Xue-Yuan; Bailly, Yannick; Balaji, Kithiganahalli Narayanaswamy; Balduini, Walter; Ballabio, Andrea; Balzan, Rena; Banerjee, Rajkumar; Banhegyi, Gabor; Bao, Haijun; Barbeau, Benoit; Barrachina, Maria D; Barreiro, Esther; Bartel, Bonnie; Bartolome, Alberto; Bassham, Diane C; Bassi, Maria Teresa; Bast, Robert C Jr; Basu, Alakananda; Batista, Maria Teresa; Batoko, Henri; Battino, Maurizio; Bauckman, Kyle; Baumgarner, Bradley L; Bayer, K Ulrich; Beale, Rupert; Beaulieu, Jean-Francois; Beck, George R Jr; Becker, Christoph; Beckham, J David; Bedard, Pierre-Andre; Bednarski, Patrick J; Begley, Thomas J; Behl, Christian; Behrends, Christian; Behrens, Georg Mn; Behrns, Kevin E; Bejarano, Eloy; Belaid, Amine; Belleudi, Francesca; Benard, Giovanni; Berchem, Guy; Bergamaschi, Daniele; Bergami, Matteo; Berkhout, Ben; Berliocchi, Laura; Bernard, Amelie; Bernard, Monique; Bernassola, Francesca; Bertolotti, Anne; Bess, Amanda S; Besteiro, Sebastien; Bettuzzi, Saverio; Bhalla, Savita; Bhattacharyya, Shalmoli; Bhutia, Sujit K; Biagosch, Caroline; Bianchi, Michele Wolfe; Biard-Piechaczyk, Martine; Billes, Viktor; Bincoletto, Claudia; Bingol, Baris; Bird, Sara W; Bitoun, Marc; Bjedov, Ivana; Blackstone, Craig; Blanc, Lionel; Blanco, Guillermo A; Blomhoff, Heidi Kiil; Boada-Romero, Emilio; Bockler, Stefan; Boes, Marianne; Boesze-Battaglia, Kathleen; Boise, Lawrence H; Bolino, Alessandra; Boman, Andrea; Bonaldo, Paolo; Bordi, Matteo; Bosch, Jurgen; Botana, Luis M; Botti, Joelle; Bou, German; Bouche, Marina; Bouchecareilh, Marion; Boucher, Marie-Josee; Boulton, Michael E; Bouret, Sebastien G; Boya, Patricia; Boyer-Guittaut, Michael; Bozhkov, Peter V; Brady, Nathan; Braga, Vania Mm; Brancolini, Claudio; Braus, Gerhard H; Bravo-San Pedro, Jose M; Brennan, Lisa A; Bresnick, Emery H; Brest, Patrick; Bridges, Dave; Bringer, Marie-Agnes; Brini, Marisa; Brito, Glauber C; Brodin, Bertha; Brookes, Paul S; Brown, Eric J; Brown, Karen; Broxmeyer, Hal E; Bruhat, Alain; Brum, Patricia Chakur; Brumell, John H; Brunetti-Pierri, Nicola; Bryson-Richardson, Robert J; Buch, Shilpa; Buchan, Alastair M; Budak, Hikmet; Bulavin, Dmitry V; Bultman, Scott J; Bultynck, Geert; Bumbasirevic, Vladimir; Burelle, Yan; Burke, Robert E; Burmeister, Margit; Butikofer, Peter; Caberlotto, Laura; Cadwell, Ken; Cahova, Monika; Cai, Dongsheng; Cai, Jingjing; Cai, Qian; Calatayud, Sara; Camougrand, Nadine; Campanella, Michelangelo; Campbell, Grant R; Campbell, Matthew; Campello, Silvia; Candau, Robin; Caniggia, Isabella; Cantoni, Lavinia; Cao, Lizhi; Caplan, Allan B; Caraglia, Michele; Cardinali, Claudio; Cardoso, Sandra Morais; Carew, Jennifer S; Carleton, Laura A; Carlin, Cathleen R; Carloni, Silvia; Carlsson, Sven R; Carmona-Gutierrez, Didac; Carneiro, Leticia Am; Carnevali, Oliana; Carra, Serena; Carrier, Alice; Carroll, Bernadette; Casas, Caty; Casas, Josefina; Cassinelli, Giuliana; Castets, Perrine; Castro-Obregon, Susana; Cavallini, Gabriella; Ceccherini, Isabella; Cecconi, Francesco; Cederbaum, Arthur I; Cena, Valentin; Cenci, Simone; Cerella, Claudia; Cervia, Davide; Cetrullo, Silvia; Chaachouay, Hassan; Chae, Han-Jung; Chagin, Andrei S; Chai, Chee-Yin; Chakrabarti, Gopal; Chamilos, Georgios; Chan, Edmond Yw; Chan, Matthew Tv; Chandra, Dhyan; Chandra, Pallavi; Chang, Chih-Peng; Chang, Raymond Chuen-Chung; Chang, Ta Yuan; Chatham, John C; Chatterjee, Saurabh; Chauhan, Santosh; Che, Yongsheng; Cheetham, Michael E; Cheluvappa, Rajkumar; Chen, Chun-Jung; Chen, Gang; Chen, Guang-Chao; Chen, Guoqiang; Chen, Hongzhuan; Chen, Jeff W; Chen, Jian-Kang; Chen, Min; Chen, Mingzhou; Chen, Peiwen; Chen, Qi; Chen, Quan; Chen, Shang-Der; Chen, Si; Chen, Steve S-L; Chen, Wei; Chen, Wei-Jung; Chen, Wen Qiang; Chen, Wenli; Chen, Xiangmei; Chen, Yau-Hung; Chen, Ye-Guang; Chen, Yin; Chen, Yingyu; Chen, Yongshun; Chen, Yu-Jen; Chen, Yue-Qin; Chen, Yujie; Chen, Zhen; Chen, Zhong; Cheng, Alan; Cheng, Christopher Hk; Cheng, Hua; Cheong, Heesun; Cherry, Sara; Chesney, Jason; Cheung, Chun Hei Antonio; Chevet, Eric; Chi, Hsiang Cheng; Chi, Sung-Gil; Chiacchiera, Fulvio; Chiang, Hui-Ling; Chiarelli, Roberto; Chiariello, Mario; Chieppa, Marcello; Chin, Lih-Shen; Chiong, Mario; Chiu, Gigi Nc; Cho, Dong-Hyung; Cho, Ssang-Goo; Cho, William C; Cho, Yong-Yeon; Cho, Young-Seok; Choi, Augustine Mk; Choi, Eui-Ju; Choi, Eun-Kyoung; Choi, Jayoung; Choi, Mary E; Choi, Seung-Il; Chou, Tsui-Fen; Chouaib, Salem; Choubey, Divaker; Choubey, Vinay; Chow, Kuan-Chih; Chowdhury, Kamal; Chu, Charleen T; Chuang, Tsung-Hsien; Chun, Taehoon; Chung, Hyewon; Chung, Taijoon; Chung, Yuen-Li; Chwae, Yong-Joon; Cianfanelli, Valentina; Ciarcia, Roberto; Ciechomska, Iwona A; Ciriolo, Maria Rosa; Cirone, Mara; Claerhout, Sofie; Clague, Michael J; Claria, Joan; Clarke, Peter Gh; Clarke, Robert; Clementi, Emilio; Cleyrat, Cedric; Cnop, Miriam; Coccia, Eliana M; Cocco, Tiziana; Codogno, Patrice; Coers, Jorn; Cohen, Ezra Ew; Colecchia, David; Coletto, Luisa; Coll, Nuria S; Colucci-Guyon, Emma; Comincini, Sergio; Condello, Maria; Cook, Katherine L; Coombs, Graham H; Cooper, Cynthia D; Cooper, J Mark; Coppens, Isabelle; Corasaniti, Maria Tiziana; Corazzari, Marco; Corbalan, Ramon; Corcelle-Termeau, Elisabeth; Cordero, Mario D; Corral-Ramos, Cristina; Corti, Olga; Cossarizza, Andrea; Costelli, Paola; Costes, Safia; Cotman, Susan L; Coto-Montes, Ana; Cottet, Sandra; Couve, Eduardo; Covey, Lori R; Cowart, L Ashley; Cox, Jeffery S; Coxon, Fraser P; Coyne, Carolyn B; Cragg, Mark S; Craven, Rolf J; Crepaldi, Tiziana; Crespo, Jose L; Criollo, Alfredo; Crippa, Valeria; Cruz, Maria Teresa; Cuervo, Ana Maria; Cuezva, Jose M; Cui, Taixing; Cutillas, Pedro R; Czaja, Mark J; Czyzyk-Krzeska, Maria F; Dagda, Ruben K; Dahmen, Uta; Dai, Chunsun; Dai, Wenjie; Dai, Yun; Dalby, Kevin N; Dalla Valle, Luisa; Dalmasso, Guillaume; D'Amelio, Marcello; Damme, Markus; Darfeuille-Michaud, Arlette; Dargemont, Catherine; Darley-Usmar, Victor M; Dasarathy, Srinivasan; Dasgupta, Biplab; Dash, Srikanta; Dass, Crispin R; Davey, Hazel Marie; Davids, Lester M; Davila, David; Davis, Roger J; Dawson, Ted M; Dawson, Valina L; Daza, Paula; de Belleroche, Jackie; de Figueiredo, Paul; de Figueiredo, Regina Celia Bressan Queiroz; de la Fuente, Jose; De Martino, Luisa; De Matteis, Antonella; De Meyer, Guido Ry; De Milito, Angelo; De Santi, Mauro; de Souza, Wanderley; De Tata, Vincenzo; De Zio, Daniela; Debnath, Jayanta; Dechant, Reinhard; Decuypere, Jean-Paul; Deegan, Shane; Dehay, Benjamin; Del Bello, Barbara; Del Re, Dominic P; Delage-Mourroux, Regis; Delbridge, Lea Md; Deldicque, Louise; Delorme-Axford, Elizabeth; Deng, Yizhen; Dengjel, Joern; Denizot, Melanie; Dent, Paul; Der, Channing J; Deretic, Vojo; Derrien, Benoit; Deutsch, Eric; Devarenne, Timothy P; Devenish, Rodney J; Di Bartolomeo, Sabrina; Di Daniele, Nicola; Di Domenico, Fabio; Di Nardo, Alessia; Di Paola, Simone; Di Pietro, Antonio; Di Renzo, Livia; DiAntonio, Aaron; Diaz-Araya, Guillermo; Diaz-Laviada, Ines; Diaz-Meco, Maria T; Diaz-Nido, Javier; Dickey, Chad A; Dickson, Robert C; Diederich, Marc; Digard, Paul; Dikic, Ivan; Dinesh-Kumar, Savithrama P; Ding, Chan; Ding, Wen-Xing; Ding, Zufeng; Dini, Luciana; Distler, Jorg Hw; Diwan, Abhinav; Djavaheri-Mergny, Mojgan; Dmytruk, Kostyantyn; Dobson, Renwick Cj; Doetsch, Volker; Dokladny, Karol; Dokudovskaya, Svetlana; Donadelli, Massimo; Dong, X Charlie; Dong, Xiaonan; Dong, Zheng; Donohue, Terrence M Jr; Doran, Kelly S; D'Orazi, Gabriella; Dorn, Gerald W 2nd; Dosenko, Victor; Dridi, Sami; Drucker, Liat; Du, Jie; Du, Li-Lin; Du, Lihuan; du Toit, Andre; Dua, Priyamvada; Duan, Lei; Duann, Pu; Dubey, Vikash Kumar; Duchen, Michael R; Duchosal, Michel A; Duez, Helene; Dugail, Isabelle; Dumit, Veronica I; Duncan, Mara C; Dunlop, Elaine A; Dunn, William A Jr; Dupont, Nicolas; Dupuis, Luc; Duran, Raul V; Durcan, Thomas M; Duvezin-Caubet, Stephane; Duvvuri, Umamaheswar; Eapen, Vinay; Ebrahimi-Fakhari, Darius; Echard, Arnaud; Eckhart, Leopold; Edelstein, Charles L; Edinger, Aimee L; Eichinger, Ludwig; Eisenberg, Tobias; Eisenberg-Lerner, Avital; Eissa, N Tony; El-Deiry, Wafik S; El-Khoury, Victoria; Elazar, Zvulun; Eldar-Finkelman, Hagit; Elliott, Chris Jh; Emanuele, Enzo; Emmenegger, Urban; Engedal, Nikolai; Engelbrecht, Anna-Mart; Engelender, Simone; Enserink, Jorrit M; Erdmann, Ralf; Erenpreisa, Jekaterina; Eri, Rajaraman; Eriksen, Jason L; Erman, Andreja; Escalante, Ricardo; Eskelinen, Eeva-Liisa; Espert, Lucile; Esteban-Martinez, Lorena; Evans, Thomas J; Fabri, Mario; Fabrias, Gemma; Fabrizi, Cinzia; Facchiano, Antonio; Faergeman, Nils J; Faggioni, Alberto; Fairlie, W Douglas; Fan, Chunhai; Fan, Daping; Fan, Jie; Fang, Shengyun; Fanto, Manolis; Fanzani, Alessandro; Farkas, Thomas; Faure, Mathias; Favier, Francois B; Fearnhead, Howard; Federici, Massimo; Fei, Erkang; Felizardo, Tania C; Feng, Hua; Feng, Yibin; Feng, Yuchen; Ferguson, Thomas A; Fernandez, Alvaro F; Fernandez-Barrena, Maite G; Fernandez-Checa, Jose C; Fernandez-Lopez, Arsenio; Fernandez-Zapico, Martin E; Feron, Olivier; Ferraro, Elisabetta; Ferreira-Halder, Carmen Verissima; Fesus, Laszlo; Feuer, Ralph; Fiesel, Fabienne C; Filippi-Chiela, Eduardo C; Filomeni, Giuseppe; Fimia, Gian Maria; Fingert, John H; Finkbeiner, Steven; Finkel, Toren; Fiorito, Filomena; Fisher, Paul B; Flajolet, Marc; Flamigni, Flavio; Florey, Oliver; Florio, Salvatore; Floto, R Andres; Folini, Marco; Follo, Carlo; Fon, Edward A; Fornai, Francesco; Fortunato, Franco; Fraldi, Alessandro; Franco, Rodrigo; Francois, Arnaud; Francois, Aurelie; Frankel, Lisa B; Fraser, Iain Dc; Frey, Norbert; Freyssenet, Damien G; Frezza, Christian; Friedman, Scott L; Frigo, Daniel E; Fu, Dongxu; Fuentes, Jose M; Fueyo, Juan; Fujitani, Yoshio; Fujiwara, Yuuki; Fujiya, Mikihiro; Fukuda, Mitsunori; Fulda, Simone; Fusco, Carmela; Gabryel, Bozena; Gaestel, Matthias; Gailly, Philippe; Gajewska, Malgorzata; Galadari, Sehamuddin; Galili, Gad; Galindo, Inmaculada; Galindo, Maria F; Galliciotti, Giovanna; Galluzzi, Lorenzo; Galluzzi, Luca; Galy, Vincent; Gammoh, Noor; Gandy, Sam; Ganesan, Anand K; Ganesan, Swamynathan; Ganley, Ian G; Gannage, Monique; Gao, Fen-Biao; Gao, Feng; Gao, Jian-Xin; Garcia Nannig, Lorena; Garcia Vescovi, Eleonora; Garcia-Macia, Marina; Garcia-Ruiz, Carmen; Garg, Abhishek D; Garg, Pramod Kumar; Gargini, Ricardo; Gassen, Nils Christian; Gatica, Damian; Gatti, Evelina; Gavard, Julie; Gavathiotis, Evripidis; Ge, Liang; Ge, Pengfei; Ge, Shengfang; Gean, Po-Wu; Gelmetti, Vania; Genazzani, Armando A; Geng, Jiefei; Genschik, Pascal; Gerner, Lisa; Gestwicki, Jason E; Gewirtz, David A; Ghavami, Saeid; Ghigo, Eric; Ghosh, Debabrata; Giammarioli, Anna Maria; Giampieri, Francesca; Giampietri, Claudia; Giatromanolaki, Alexandra; Gibbings, Derrick J; Gibellini, Lara; Gibson, Spencer B; Ginet, Vanessa; Giordano, Antonio; Giorgini, Flaviano; Giovannetti, Elisa; Girardin, Stephen E; Gispert, Suzana; Giuliano, Sandy; Gladson, Candece L; Glavic, Alvaro; Gleave, Martin; Godefroy, Nelly; Gogal, Robert M Jr; Gokulan, Kuppan; Goldman, Gustavo H; Goletti, Delia; Goligorsky, Michael S; Gomes, Aldrin V; Gomes, Ligia C; Gomez, Hernando; Gomez-Manzano, Candelaria; Gomez-Sanchez, Ruben; Goncalves, Dawit Ap; Goncu, Ebru; Gong, Qingqiu; Gongora, Celine; Gonzalez, Carlos B; Gonzalez-Alegre, Pedro; Gonzalez-Cabo, Pilar; Gonzalez-Polo, Rosa Ana; Goping, Ing Swie; Gorbea, Carlos; Gorbunov, Nikolai V; Goring, Daphne R; Gorman, Adrienne M; Gorski, Sharon M; Goruppi, Sandro; Goto-Yamada, Shino; Gotor, Cecilia; Gottlieb, Roberta A; Gozes, Illana; Gozuacik, Devrim; Graba, Yacine; Graef, Martin; Granato, Giovanna E; Grant, Gary Dean; Grant, Steven; Gravina, Giovanni Luca; Green, Douglas R; Greenhough, Alexander; Greenwood, Michael T; Grimaldi, Benedetto; Gros, Frederic; Grose, Charles; Groulx, Jean-Francois; Gruber, Florian; Grumati, Paolo; Grune, Tilman; Guan, Jun-Lin; Guan, Kun-Liang; Guerra, Barbara; Guillen, Carlos; Gulshan, Kailash; Gunst, Jan; Guo, Chuanyong; Guo, Lei; Guo, Ming; Guo, Wenjie; Guo, Xu-Guang; Gust, Andrea A; Gustafsson, Asa B; Gutierrez, Elaine; Gutierrez, Maximiliano G; Gwak, Ho-Shin; Haas, Albert; Haber, James E; Hadano, Shinji; Hagedorn, Monica; Hahn, David R; Halayko, Andrew J; Hamacher-Brady, Anne; Hamada, Kozo; Hamai, Ahmed; Hamann, Andrea; Hamasaki, Maho; Hamer, Isabelle; Hamid, Qutayba; Hammond, Ester M; Han, Feng; Han, Weidong; Handa, James T; Hanover, John A; Hansen, Malene; Harada, Masaru; Harhaji-Trajkovic, Ljubica; Harper, J Wade; Harrath, Abdel Halim; Harris, Adrian L; Harris, James; Hasler, Udo; Hasselblatt, Peter; Hasui, Kazuhisa; Hawley, Robert G; Hawley, Teresa S; He, Congcong; He, Cynthia Y; He, Fengtian; He, Gu; He, Rong-Rong; He, Xian-Hui; He, You-Wen; He, Yu-Ying; Heath, Joan K; Hebert, Marie-Josee; Heinzen, Robert A; Helgason, Gudmundur Vignir; Hensel, Michael; Henske, Elizabeth P; Her, Chengtao; Herman, Paul K; Hernandez, Agustin; Hernandez, Carlos; Hernandez-Tiedra, Sonia; Hetz, Claudio; Hiesinger, P Robin; Higaki, Katsumi; Hilfiker, Sabine; Hill, Bradford G; Hill, Joseph A; Hill, William D; Hino, Keisuke; Hofius, Daniel; Hofman, Paul; Hoglinger, Gunter U; Hohfeld, Jorg; Holz, Marina K; Hong, Yonggeun; Hood, David A; Hoozemans, Jeroen Jm; Hoppe, Thorsten; Hsu, Chin; Hsu, Chin-Yuan; Hsu, Li-Chung; Hu, Dong; Hu, Guochang; Hu, Hong-Ming; Hu, Hongbo; Hu, Ming Chang; Hu, Yu-Chen; Hu, Zhuo-Wei; Hua, Fang; Hua, Ya; Huang, Canhua; Huang, Huey-Lan; Huang, Kuo-How; Huang, Kuo-Yang; Huang, Shile; Huang, Shiqian; Huang, Wei-Pang; Huang, Yi-Ran; Huang, Yong; Huang, Yunfei; Huber, Tobias B; Huebbe, Patricia; Huh, Won-Ki; Hulmi, Juha J; Hur, Gang Min; Hurley, James H; Husak, Zvenyslava; Hussain, Sabah Na; Hussain, Salik; Hwang, Jung Jin; Hwang, Seungmin; Hwang, Thomas Is; Ichihara, Atsuhiro; Imai, Yuzuru; Imbriano, Carol; Inomata, Megumi; Into, Takeshi; Iovane, Valentina; Iovanna, Juan L; Iozzo, Renato V; Ip, Nancy Y; Irazoqui, Javier E; Iribarren, Pablo; Isaka, Yoshitaka; Isakovic, Aleksandra J; Ischiropoulos, Harry; Isenberg, Jeffrey S; Ishaq, Mohammad; Ishida, Hiroyuki; Ishii, Isao; Ishmael, Jane E; Isidoro, Ciro; Isobe, Ken-Ichi; Isono, Erika; Issazadeh-Navikas, Shohreh; Itahana, Koji; Itakura, Eisuke; Ivanov, Andrei I; Iyer, Anand Krishnan V; Izquierdo, Jose M; Izumi, Yotaro; Izzo, Valentina; Jaattela, Marja; Jaber, Nadia; Jackson, Daniel John; Jackson, William T; Jacob, Tony George; Jacques, Thomas S; Jagannath, Chinnaswamy; Jain, Ashish; Jana, Nihar Ranjan; Jang, Byoung Kuk; Jani, Alkesh; Janji, Bassam; Jannig, Paulo Roberto; Jansson, Patric J; Jean, Steve; Jendrach, Marina; Jeon, Ju-Hong; Jessen, Niels; Jeung, Eui-Bae; Jia, Kailiang; Jia, Lijun; Jiang, Hong; Jiang, Hongchi; Jiang, Liwen; Jiang, Teng; Jiang, Xiaoyan; Jiang, Xuejun; Jiang, Xuejun; Jiang, Ying; Jiang, Yongjun; Jimenez, Alberto; Jin, Cheng; Jin, Hongchuan; Jin, Lei; Jin, Meiyan; Jin, Shengkan; Jinwal, Umesh Kumar; Jo, Eun-Kyeong; Johansen, Terje; Johnson, Daniel E; Johnson, Gail Vw; Johnson, James D; Jonasch, Eric; Jones, Chris; Joosten, Leo Ab; Jordan, Joaquin; Joseph, Anna-Maria; Joseph, Bertrand; Joubert, Annie M; Ju, Dianwen; Ju, Jingfang; Juan, Hsueh-Fen; Juenemann, Katrin; Juhasz, Gabor; Jung, Hye Seung; Jung, Jae U; Jung, Yong-Keun; Jungbluth, Heinz; Justice, Matthew J; Jutten, Barry; Kaakoush, Nadeem O; Kaarniranta, Kai; Kaasik, Allen; Kabuta, Tomohiro; Kaeffer, Bertrand; Kagedal, Katarina; Kahana, Alon; Kajimura, Shingo; Kakhlon, Or; Kalia, Manjula; Kalvakolanu, Dhan V; Kamada, Yoshiaki; Kambas, Konstantinos; Kaminskyy, Vitaliy O; Kampinga, Harm H; Kandouz, Mustapha; Kang, Chanhee; Kang, Rui; Kang, Tae-Cheon; Kanki, Tomotake; Kanneganti, Thirumala-Devi; Kanno, Haruo; Kanthasamy, Anumantha G; Kantorow, Marc; Kaparakis-Liaskos, Maria; Kapuy, Orsolya; Karantza, Vassiliki; Karim, Md Razaul; Karmakar, Parimal; Kaser, Arthur; Kaushik, Susmita; Kawula, Thomas; Kaynar, A Murat; Ke, Po-Yuan; Ke, Zun-Ji; Kehrl, John H; Keller, Kate E; Kemper, Jongsook Kim; Kenworthy, Anne K; Kepp, Oliver; Kern, Andreas; Kesari, Santosh; Kessel, David; Ketteler, Robin; Kettelhut, Isis do Carmo; Khambu, Bilon; Khan, Muzamil Majid; Khandelwal, Vinoth Km; Khare, Sangeeta; Kiang, Juliann G; Kiger, Amy A; Kihara, Akio; Kim, Arianna L; Kim, Cheol Hyeon; Kim, Deok Ryong; Kim, Do-Hyung; Kim, Eung Kweon; Kim, Hye Young; Kim, Hyung-Ryong; Kim, Jae-Sung; Kim, Jeong Hun; Kim, Jin Cheon; Kim, Jin Hyoung; Kim, Kwang Woon; Kim, Michael D; Kim, Moon-Moo; Kim, Peter K; Kim, Seong Who; Kim, Soo-Youl; Kim, Yong-Sun; Kim, Yonghyun; Kimchi, Adi; Kimmelman, Alec C; Kimura, Tomonori; King, Jason S; Kirkegaard, Karla; Kirkin, Vladimir; Kirshenbaum, Lorrie A; Kishi, Shuji; Kitajima, Yasuo; Kitamoto, Katsuhiko; Kitaoka, Yasushi; Kitazato, Kaio; Kley, Rudolf A; Klimecki, Walter T; Klinkenberg, Michael; Klucken, Jochen; Knaevelsrud, Helene; Knecht, Erwin; Knuppertz, Laura; Ko, Jiunn-Liang; Kobayashi, Satoru; Koch, Jan C; Koechlin-Ramonatxo, Christelle; Koenig, Ulrich; Koh, Young Ho; Kohler, Katja; Kohlwein, Sepp D; Koike, Masato; Komatsu, Masaaki; Kominami, Eiki; Kong, Dexin; Kong, Hee Jeong; Konstantakou, Eumorphia G; Kopp, Benjamin T; Korcsmaros, Tamas; Korhonen, Laura; Korolchuk, Viktor I; Koshkina, Nadya V; Kou, Yanjun; Koukourakis, Michael I; Koumenis, Constantinos; Kovacs, Attila L; Kovacs, Tibor; Kovacs, Werner J; Koya, Daisuke; Kraft, Claudine; Krainc, Dimitri; Kramer, Helmut; Kravic-Stevovic, Tamara; Krek, Wilhelm; Kretz-Remy, Carole; Krick, Roswitha; Krishnamurthy, Malathi; Kriston-Vizi, Janos; Kroemer, Guido; Kruer, Michael C; Kruger, Rejko; Ktistakis, Nicholas T; Kuchitsu, Kazuyuki; Kuhn, Christian; Kumar, Addanki Pratap; Kumar, Anuj; Kumar, Ashok; Kumar, Deepak; Kumar, Dhiraj; Kumar, Rakesh; Kumar, Sharad; Kundu, Mondira; Kung, Hsing-Jien; Kuno, Atsushi; Kuo, Sheng-Han; Kuret, Jeff; Kurz, Tino; Kwok, Terry; Kwon, Taeg Kyu; Kwon, Yong Tae; Kyrmizi, Irene; La Spada, Albert R; Lafont, Frank; Lahm, Tim; Lakkaraju, Aparna; Lam, Truong; Lamark, Trond; Lancel, Steve; Landowski, Terry H; Lane, Darius Jr; Lane, Jon D; Lanzi, Cinzia; Lapaquette, Pierre; Lapierre, Louis R; Laporte, Jocelyn; Laukkarinen, Johanna; Laurie, Gordon W; Lavandero, Sergio; Lavie, Lena; LaVoie, Matthew J; Law, Betty Yuen Kwan; Law, Helen Ka-Wai; Law, Kelsey B; Layfield, Robert; Lazo, Pedro A; Le Cam, Laurent; Le Roch, Karine G; Le Stunff, Herve; Leardkamolkarn, Vijittra; Lecuit, Marc; Lee, Byung-Hoon; Lee, Che-Hsin; Lee, Erinna F; Lee, Gyun Min; Lee, He-Jin; Lee, Hsinyu; Lee, Jae Keun; Lee, Jongdae; Lee, Ju-Hyun; Lee, Jun Hee; Lee, Michael; Lee, Myung-Shik; Lee, Patty J; Lee, Sam W; Lee, Seung-Jae; Lee, Shiow-Ju; Lee, Stella Y; Lee, Sug Hyung; Lee, Sung Sik; Lee, Sung-Joon; Lee, Sunhee; Lee, Ying-Ray; Lee, Yong J; Lee, Young H; Leeuwenburgh, Christiaan; Lefort, Sylvain; Legouis, Renaud; Lei, Jinzhi; Lei, Qun-Ying; Leib, David A; Leibowitz, Gil; Lekli, Istvan; Lemaire, Stephane D; Lemasters, John J; Lemberg, Marius K; Lemoine, Antoinette; Leng, Shuilong; Lenz, Guido; Lenzi, Paola; Lerman, Lilach O; Lettieri Barbato, Daniele; Leu, Julia I-Ju; Leung, Hing Y; Levine, Beth; Lewis, Patrick A; Lezoualc'h, Frank; Li, Chi; Li, Faqiang; Li, Feng-Jun; Li, Jun; Li, Ke; Li, Lian; Li, Min; Li, Min; Li, Qiang; Li, Rui; Li, Sheng; Li, Wei; Li, Wei; Li, Xiaotao; Li, Yumin; Lian, Jiqin; Liang, Chengyu; Liang, Qiangrong; Liao, Yulin; Liberal, Joana; Liberski, Pawel P; Lie, Pearl; Lieberman, Andrew P; Lim, Hyunjung Jade; Lim, Kah-Leong; Lim, Kyu; Lima, Raquel T; Lin, Chang-Shen; Lin, Chiou-Feng; Lin, Fang; Lin, Fangming; Lin, Fu-Cheng; Lin, Kui; Lin, Kwang-Huei; Lin, Pei-Hui; Lin, Tianwei; Lin, Wan-Wan; Lin, Yee-Shin; Lin, Yong; Linden, Rafael; Lindholm, Dan; Lindqvist, Lisa M; Lingor, Paul; Linkermann, Andreas; Liotta, Lance A; Lipinski, Marta M; Lira, Vitor A; Lisanti, Michael P; Liton, Paloma B; Liu, Bo; Liu, Chong; Liu, Chun-Feng; Liu, Fei; Liu, Hung-Jen; Liu, Jianxun; Liu, Jing-Jing; Liu, Jing-Lan; Liu, Ke; Liu, Leyuan; Liu, Liang; Liu, Quentin; Liu, Rong-Yu; Liu, Shiming; Liu, Shuwen; Liu, Wei; Liu, Xian-De; Liu, Xiangguo; Liu, Xiao-Hong; Liu, Xinfeng; Liu, Xu; Liu, Xueqin; Liu, Yang; Liu, Yule; Liu, Zexian; Liu, Zhe; Liuzzi, Juan P; Lizard, Gerard; Ljujic, Mila; Lodhi, Irfan J; Logue, Susan E; Lokeshwar, Bal L; Long, Yun Chau; Lonial, Sagar; Loos, Benjamin; Lopez-Otin, Carlos; Lopez-Vicario, Cristina; Lorente, Mar; Lorenzi, Philip L; Lorincz, Peter; Los, Marek; Lotze, Michael T; Lovat, Penny E; Lu, Binfeng; Lu, Bo; Lu, Jiahong; Lu, Qing; Lu, She-Min; Lu, Shuyan; Lu, Yingying; Luciano, Frederic; Luckhart, Shirley; Lucocq, John Milton; Ludovico, Paula; Lugea, Aurelia; Lukacs, Nicholas W; Lum, Julian J; Lund, Anders H; Luo, Honglin; Luo, Jia; Luo, Shouqing; Luparello, Claudio; Lyons, Timothy; Ma, Jianjie; Ma, Yi; Ma, Yong; Ma, Zhenyi; Machado, Juliano; Machado-Santelli, Glaucia M; Macian, Fernando; MacIntosh, Gustavo C; MacKeigan, Jeffrey P; Macleod, Kay F; MacMicking, John D; MacMillan-Crow, Lee Ann; Madeo, Frank; Madesh, Muniswamy; Madrigal-Matute, Julio; Maeda, Akiko; Maeda, Tatsuya; Maegawa, Gustavo; Maellaro, Emilia; Maes, Hannelore; Magarinos, Marta; Maiese, Kenneth; Maiti, Tapas K; Maiuri, Luigi; Maiuri, Maria Chiara; Maki, Carl G; Malli, Roland; Malorni, Walter; Maloyan, Alina; Mami-Chouaib, Fathia; Man, Na; Mancias, Joseph D; Mandelkow, Eva-Maria; Mandell, Michael A; Manfredi, Angelo A; Manie, Serge N; Manzoni, Claudia; Mao, Kai; Mao, Zixu; Mao, Zong-Wan; Marambaud, Philippe; Marconi, Anna Maria; Marelja, Zvonimir; Marfe, Gabriella; Margeta, Marta; Margittai, Eva; Mari, Muriel; Mariani, Francesca V; Marin, Concepcio; Marinelli, Sara; Marino, Guillermo; Markovic, Ivanka; Marquez, Rebecca; Martelli, Alberto M; Martens, Sascha; Martin, Katie R; Martin, Seamus J; Martin, Shaun; Martin-Acebes, Miguel A; Martin-Sanz, Paloma; Martinand-Mari, Camille; Martinet, Wim; Martinez, Jennifer; Martinez-Lopez, Nuria; Martinez-Outschoorn, Ubaldo; Martinez-Velazquez, Moises; Martinez-Vicente, Marta; Martins, Waleska Kerllen; Mashima, Hirosato; Mastrianni, James A; Matarese, Giuseppe; Matarrese, Paola; Mateo, Roberto; Matoba, Satoaki; Matsumoto, Naomichi; Matsushita, Takehiko; Matsuura, Akira; Matsuzawa, Takeshi; Mattson, Mark P; Matus, Soledad; Maugeri, Norma; Mauvezin, Caroline; Mayer, Andreas; Maysinger, Dusica; Mazzolini, Guillermo D; McBrayer, Mary Kate; McCall, Kimberly; McCormick, Craig; McInerney, Gerald M; McIver, Skye C; McKenna, Sharon; McMahon, John J; McNeish, Iain A; Mechta-Grigoriou, Fatima; Medema, Jan Paul; Medina, Diego L; Megyeri, Klara; Mehrpour, Maryam; Mehta, Jawahar L; Mei, Yide; Meier, Ute-Christiane; Meijer, Alfred J; Melendez, Alicia; Melino, Gerry; Melino, Sonia; de Melo, Edesio Jose Tenorio; Mena, Maria A; Meneghini, Marc D; Menendez, Javier A; Menezes, Regina; Meng, Liesu; Meng, Ling-Hua; Meng, Songshu; Menghini, Rossella; Menko, A Sue; Menna-Barreto, Rubem Fs; Menon, Manoj B; Meraz-Rios, Marco A; Merla, Giuseppe; Merlini, Luciano; Merlot, Angelica M; Meryk, Andreas; Meschini, Stefania; Meyer, Joel N; Mi, Man-Tian; Miao, Chao-Yu; Micale, Lucia; Michaeli, Simon; Michiels, Carine; Migliaccio, Anna Rita; Mihailidou, Anastasia Susie; Mijaljica, Dalibor; Mikoshiba, Katsuhiko; Milan, Enrico; Miller-Fleming, Leonor; Mills, Gordon B; Mills, Ian G; Minakaki, Georgia; Minassian, Berge A; Ming, Xiu-Fen; Minibayeva, Farida; Minina, Elena A; Mintern, Justine D; Minucci, Saverio; Miranda-Vizuete, Antonio; Mitchell, Claire H; Miyamoto, Shigeki; Miyazawa, Keisuke; Mizushima, Noboru; Mnich, Katarzyna; Mograbi, Baharia; Mohseni, Simin; Moita, Luis Ferreira; Molinari, Marco; Molinari, Maurizio; Moller, Andreas Buch; Mollereau, Bertrand; Mollinedo, Faustino; Mongillo, Marco; Monick, Martha M; Montagnaro, Serena; Montell, Craig; Moore, Darren J; Moore, Michael N; Mora-Rodriguez, Rodrigo; Moreira, Paula I; Morel, Etienne; Morelli, Maria Beatrice; Moreno, Sandra; Morgan, Michael J; Moris, Arnaud; Moriyasu, Yuji; Morrison, Janna L; Morrison, Lynda A; Morselli, Eugenia; Moscat, Jorge; Moseley, Pope L; Mostowy, Serge; Motori, Elisa; Mottet, Denis; Mottram, Jeremy C; Moussa, Charbel E-H; Mpakou, Vassiliki E; Mukhtar, Hasan; Mulcahy Levy, Jean M; Muller, Sylviane; Munoz-Moreno, Raquel; Munoz-Pinedo, Cristina; Munz, Christian; Murphy, Maureen E; Murray, James T; Murthy, Aditya; Mysorekar, Indira U; Nabi, Ivan R; Nabissi, Massimo; Nader, Gustavo A; Nagahara, Yukitoshi; Nagai, Yoshitaka; Nagata, Kazuhiro; Nagelkerke, Anika; Nagy, Peter; Naidu, Samisubbu R; Nair, Sreejayan; Nakano, Hiroyasu; Nakatogawa, Hitoshi; Nanjundan, Meera; Napolitano, Gennaro; Naqvi, Naweed I; Nardacci, Roberta; Narendra, Derek P; Narita, Masashi; Nascimbeni, Anna Chiara; Natarajan, Ramesh; Navegantes, Luiz C; Nawrocki, Steffan T; Nazarko, Taras Y; Nazarko, Volodymyr Y; Neill, Thomas; Neri, Luca M; Netea, Mihai G; Netea-Maier, Romana T; Neves, Bruno M; Ney, Paul A; Nezis, Ioannis P; Nguyen, Hang Tt; Nguyen, Huu Phuc; Nicot, Anne-Sophie; Nilsen, Hilde; Nilsson, Per; Nishimura, Mikio; Nishino, Ichizo; Niso-Santano, Mireia; Niu, Hua; Nixon, Ralph A; Njar, Vincent Co; Noda, Takeshi; Noegel, Angelika A; Nolte, Elsie Magdalena; Norberg, Erik; Norga, Koenraad K; Noureini, Sakineh Kazemi; Notomi, Shoji; Notterpek, Lucia; Nowikovsky, Karin; Nukina, Nobuyuki; Nurnberger, Thorsten; O'Donnell, Valerie B; O'Donovan, Tracey; O'Dwyer, Peter J; Oehme, Ina; Oeste, Clara L; Ogawa, Michinaga; Ogretmen, Besim; Ogura, Yuji; Oh, Young J; Ohmuraya, Masaki; Ohshima, Takayuki; Ojha, Rani; Okamoto, Koji; Okazaki, Toshiro; Oliver, F Javier; Ollinger, Karin; Olsson, Stefan; Orban, Daniel P; Ordonez, Paulina; Orhon, Idil; Orosz, Laszlo; O'Rourke, Eyleen J; Orozco, Helena; Ortega, Angel L; Ortona, Elena; Osellame, Laura D; Oshima, Junko; Oshima, Shigeru; Osiewacz, Heinz D; Otomo, Takanobu; Otsu, Kinya; Ou, Jing-Hsiung James; Outeiro, Tiago F; Ouyang, Dong-Yun; Ouyang, Hongjiao; Overholtzer, Michael; Ozbun, Michelle A; Ozdinler, P Hande; Ozpolat, Bulent; Pacelli, Consiglia; Paganetti, Paolo; Page, Guylene; Pages, Gilles; Pagnini, Ugo; Pajak, Beata; Pak, Stephen C; Pakos-Zebrucka, Karolina; Pakpour, Nazzy; Palkova, Zdena; Palladino, Francesca; Pallauf, Kathrin; Pallet, Nicolas; Palmieri, Marta; Paludan, Soren R; Palumbo, Camilla; Palumbo, Silvia; Pampliega, Olatz; Pan, Hongming; Pan, Wei; Panaretakis, Theocharis; Pandey, Aseem; Pantazopoulou, Areti; Papackova, Zuzana; Papademetrio, Daniela L; Papassideri, Issidora; Papini, Alessio; Parajuli, Nirmala; Pardo, Julian; Parekh, Vrajesh V; Parenti, Giancarlo; Park, Jong-In; 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PMCID:4835977
PMID: 26799652
ISSN: 1554-8635
CID: 1922322

Presenilin 1 Maintains Lysosomal Ca(2+) Homeostasis via TRPML1 by Regulating vATPase-Mediated Lysosome Acidification

Lee, Ju-Hyun; McBrayer, Mary Kate; Wolfe, Devin M; Haslett, Luke J; Kumar, Asok; Sato, Yutaka; Lie, Pearl P Y; Mohan, Panaiyur; Coffey, Erin E; Kompella, Uday; Mitchell, Claire H; Lloyd-Evans, Emyr; Nixon, Ralph A
Presenilin 1 (PS1) deletion or Alzheimer's disease (AD)-linked mutations disrupt lysosomal acidification and proteolysis, which inhibits autophagy. Here, we establish that this phenotype stems from impaired glycosylation and instability of vATPase V0a1 subunit, causing deficient lysosomal vATPase assembly and function. We further demonstrate that elevated lysosomal pH in Presenilin 1 knockout (PS1KO) cells induces abnormal Ca(2+) efflux from lysosomes mediated by TRPML1 and elevates cytosolic Ca(2+). In WT cells, blocking vATPase activity or knockdown of either PS1 or the V0a1 subunit of vATPase reproduces all of these abnormalities. Normalizing lysosomal pH in PS1KO cells using acidic nanoparticles restores normal lysosomal proteolysis, autophagy, and Ca(2+) homeostasis, but correcting lysosomal Ca(2+) deficits alone neither re-acidifies lysosomes nor reverses proteolytic and autophagic deficits. Our results indicate that vATPase deficiency in PS1 loss-of-function states causes lysosomal/autophagy deficits and contributes to abnormal cellular Ca(2+) homeostasis, thus linking two AD-related pathogenic processes through a common molecular mechanism.
PMCID:4558203
PMID: 26299959
ISSN: 2211-1247
CID: 1764082