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Integrative Molecular Characterization of Malignant Pleural Mesothelioma.


ABSTRACT: Malignant pleural mesothelioma (MPM) is a highly lethal cancer of the lining of the chest cavity. To expand our understanding of MPM, we conducted a comprehensive integrated genomic study, including the most detailed analysis of BAP1 alterations to date. We identified histology-independent molecular prognostic subsets, and defined a novel genomic subtype with TP53 and SETDB1 mutations and extensive loss of heterozygosity. We also report strong expression of the immune-checkpoint gene VISTA in epithelioid MPM, strikingly higher than in other solid cancers, with implications for the immune response to MPM and for its immunotherapy. Our findings highlight new avenues for further investigation of MPM biology and novel therapeutic options. SIGNIFICANCE: Through a comprehensive integrated genomic study of 74 MPMs, we provide a deeper understanding of histology-independent determinants of aggressive behavior, define a novel genomic subtype with TP53 and SETDB1 mutations and extensive loss of heterozygosity, and discovered strong expression of the immune-checkpoint gene VISTA in epithelioid MPM.See related commentary by Aggarwal and Albelda, p. 1508.This article is highlighted in the In This Issue feature, p. 1494.

SUBMITTER: Hmeljak J 

PROVIDER: S-EPMC6310008 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Integrative Molecular Characterization of Malignant Pleural Mesothelioma.

Hmeljak Julija J   Sanchez-Vega Francisco F   Hoadley Katherine A KA   Shih Juliann J   Stewart Chip C   Heiman David D   Tarpey Patrick P   Danilova Ludmila L   Drill Esther E   Gibb Ewan A EA   Bowlby Reanne R   Kanchi Rupa R   Osmanbeyoglu Hatice U HU   Sekido Yoshitaka Y   Takeshita Jumpei J   Newton Yulia Y   Graim Kiley K   Gupta Manaswi M   Gay Carl M CM   Diao Lixia L   Gibbs David L DL   Thorsson Vesteinn V   Iype Lisa L   Kantheti Havish H   Severson David T DT   Ravegnini Gloria G   Desmeules Patrice P   Jungbluth Achim A AA   Travis William D WD   Dacic Sanja S   Chirieac Lucian R LR   Galateau-Sallé Françoise F   Fujimoto Junya J   Husain Aliya N AN   Silveira Henrique C HC   Rusch Valerie W VW   Rintoul Robert C RC   Pass Harvey H   Kindler Hedy H   Zauderer Marjorie G MG   Kwiatkowski David J DJ   Bueno Raphael R   Tsao Anne S AS   Creaney Jenette J   Lichtenberg Tara T   Leraas Kristen K   Bowen Jay J   Felau Ina I   Zenklusen Jean Claude JC   Akbani Rehan R   Cherniack Andrew D AD   Byers Lauren A LA   Noble Michael S MS   Fletcher Jonathan A JA   Robertson A Gordon AG   Shen Ronglai R   Aburatani Hiroyuki H   Robinson Bruce W BW   Campbell Peter P   Ladanyi Marc M  

Cancer discovery 20181015 12


Malignant pleural mesothelioma (MPM) is a highly lethal cancer of the lining of the chest cavity. To expand our understanding of MPM, we conducted a comprehensive integrated genomic study, including the most detailed analysis of <i>BAP1</i> alterations to date. We identified histology-independent molecular prognostic subsets, and defined a novel genomic subtype with <i>TP53</i> and <i>SETDB1</i> mutations and extensive loss of heterozygosity. We also report strong expression of the immune-checkp  ...[more]

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