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Kan, Zhengyan; Ding, Ying; Kim, Jinho; Jung, Hae Hyun; Chung, Woosung; Lal, Samir; Cho, Soonweng; Fernandez-Banet, Julio; Lee, Se Kyung; Kim, Seok Won; Lee, Jeong Eon; Choi, Yoon-La; Deng, Shibing; Kim, Ji-Yeon; Ahn, Jin Seok; Sha, Ying; Mu, Xinmeng Jasmine; Nam, Jae-Yong; Im, Young-Hyuck; Lee, Soohyeon; Park, Woong-Yang; Nam, Seok Jin; Park, Yeon Hee
Nature communications, 04/2018, Letnik: 9, Številka: 1Journal Article
Breast cancer (BC) in the Asia Pacific regions is enriched in younger patients and rapidly rising in incidence yet its molecular bases remain poorly characterized. Here we analyze the whole exomes and transcriptomes of 187 primary tumors from a Korean BC cohort (SMC) enriched in pre-menopausal patients and perform systematic comparison with a primarily Caucasian and post-menopausal BC cohort (TCGA). SMC harbors higher proportions of HER2+ and Luminal B subtypes, lower proportion of Luminal A with decreased ESR1 expression compared to TCGA. We also observe increased mutation prevalence affecting BRCA1, BRCA2, and TP53 in SMC with an enrichment of a mutation signature linked to homologous recombination repair deficiency in TNBC. Finally, virtual microdissection and multivariate analyses reveal that Korean BC status is independently associated with increased TIL and decreased TGF-β signaling expression signatures, suggesting that younger Asian BCs harbor more immune-active microenvironment than western BCs.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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