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Genomic events associated with progression of pleural malignant mesothelioma

Ivanov, Sergey V; Miller, Jeremy; Lucito, Robert; Tang, Chunlao; Ivanova, Alla V; Pei, Jianming; Carbone, Michele; Cruz, Christina; Beck, Amanda; Webb, Craig; Nonaka, Daisuke; Testa, Joseph R; Pass, Harvey I
Pleural malignant mesothelioma (MM) is an aggressive cancer with a very long latency and a very short median survival. Little is known about the genetic events that trigger MM and their relation to poor outcome. The goal of our study was to characterize major genomic gains and losses associated with MM origin and progression and assess their clinical significance. We performed Representative Oligonucleotide Microarray Analysis (ROMA) on DNA isolated from tumors of 22 patients who recurred at variable interval with the disease after surgery. The total number of copy number alterations (CNA) and frequent imbalances for patients with short time (<12 months from surgery) and long time to recurrence were recorded and mapped using the Analysis of Copy Errors algorithm. We report a profound increase in CNA in the short-time recurrence group with most chromosomes affected, which can be explained by chromosomal instability associated with MM. Deletions in chromosomes 22q12.2, 19q13.32 and 17p13.1 appeared to be the most frequent events (55-74%) shared between MM patients followed by deletions in 1p, 9p, 9q, 4p, 3p and gains in 5p, 18q, 8q and 17q (23-55%). Deletions in 9p21.3 encompassing CDKN2A/ARF and CDKN2B were characterized as specific for the short-term recurrence group. Analysis of the minimal common areas of frequent gains and losses identified candidate genes that may be involved in different stages of MM: OSM (22q12.2), FUS1 and PL6 (3p21.3), DNAJA1 (9p21.1) and CDH2 (18q11.2-q12.3). Imbalances seen by ROMA were confirmed by Affymetrix genome analysis in a subset of samples. (c) 2008 Wiley-Liss, Inc
PMCID:2933144
PMID: 18973227
ISSN: 1097-0215
CID: 90030

The American-Australian Mesothelioma Consortium: DRN Mesothelioma Biomarker Discovery Laboratory [Meeting Abstract]

Pass, HI; Beck, A; Ivanova, A; Ivanov, S; Goparaju, C; Donington, J; Creaney, J; Robinson, B
ISI:000260403300063
ISSN: 1574-0153
CID: 91474

The American-Australian Mesothelioma Consortium: EDRN Mesothelioma Biomarker Discovery Laboratory [Meeting Abstract]

Pass, HI; Beck, A; Ianova, A; Ivanov, S; Goparaju, C; Donington, J; Creaney, J; Robinson, B
ISI:000260403300117
ISSN: 1574-0153
CID: 91477

Mechanisms of innate drug sensitivity in malignant pleural mesotheliomas [Meeting Abstract]

Ivanova, AV; Ivanov, SV; Cruz, C; Beck, A; Pass, HI
ISI:000248688600308
ISSN: 1556-0864
CID: 74186