Association of self-identified race and genetic ancestry with the immunogenomic landscape of primary prostate cancer

The genomic and immune landscapes of prostate cancer differ by self-identified race. However, few studies have examined the genome-wide copy number landscape and immune content of matched cohorts with genetic ancestry data and clinical outcomes. Here, we assessed prostate cancer somatic copy number...

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Main Authors: Thiago Vidotto, Eddie L. Imada, Farzana Faisal, Sanjana Murali, Adrianna A. Mendes, Harsimar Kaur, Siqun Zheng, Jianfeng Xu, Edward M. Schaeffer, William B. Isaacs, Karen S. Sfanos, Luigi Marchionni, Tamara L. Lotan
Format: Article
Language:English
Published: American Society for Clinical investigation 2023-02-01
Series:JCI Insight
Subjects:
Online Access:https://doi.org/10.1172/jci.insight.162409
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author Thiago Vidotto
Eddie L. Imada
Farzana Faisal
Sanjana Murali
Adrianna A. Mendes
Harsimar Kaur
Siqun Zheng
Jianfeng Xu
Edward M. Schaeffer
William B. Isaacs
Karen S. Sfanos
Luigi Marchionni
Tamara L. Lotan
author_facet Thiago Vidotto
Eddie L. Imada
Farzana Faisal
Sanjana Murali
Adrianna A. Mendes
Harsimar Kaur
Siqun Zheng
Jianfeng Xu
Edward M. Schaeffer
William B. Isaacs
Karen S. Sfanos
Luigi Marchionni
Tamara L. Lotan
author_sort Thiago Vidotto
collection DOAJ
description The genomic and immune landscapes of prostate cancer differ by self-identified race. However, few studies have examined the genome-wide copy number landscape and immune content of matched cohorts with genetic ancestry data and clinical outcomes. Here, we assessed prostate cancer somatic copy number alterations (sCNA) and tumor immune content of a grade-matched, surgically treated cohort of 145 self-identified Black (BL) and 145 self-identified White (WH) patients with genetic ancestry estimation. A generalized linear model adjusted with age, preoperative prostate-specific antigen (PSA), and Gleason Grade Group and filtered for germline copy number variations (gCNV) identified 143 loci where copy number varied significantly by percent African ancestry, clustering on chromosomes 6p, 10q, 11p, 12p, and 17p. Multivariable Cox regression models adjusted for age, preoperative PSA levels, and Gleason Grade Group revealed that chromosome 8q gains (including MYC) were significantly associated with biochemical recurrence and metastasis, independent of genetic ancestry. Finally, Treg density in BL and WH patients was significantly correlated with percent genome altered, and these findings were validated in the TCGA cohort. Taken together, our findings identify specific sCNA linked to genetic ancestry and outcome in primary prostate cancer and demonstrate that Treg infiltration varies by global sCNA burden in primary disease.
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spelling doaj.art-ecd843645058485e9f5dc48d24f268522023-11-07T16:25:10ZengAmerican Society for Clinical investigationJCI Insight2379-37082023-02-0183Association of self-identified race and genetic ancestry with the immunogenomic landscape of primary prostate cancerThiago VidottoEddie L. ImadaFarzana FaisalSanjana MuraliAdrianna A. MendesHarsimar KaurSiqun ZhengJianfeng XuEdward M. SchaefferWilliam B. IsaacsKaren S. SfanosLuigi MarchionniTamara L. LotanThe genomic and immune landscapes of prostate cancer differ by self-identified race. However, few studies have examined the genome-wide copy number landscape and immune content of matched cohorts with genetic ancestry data and clinical outcomes. Here, we assessed prostate cancer somatic copy number alterations (sCNA) and tumor immune content of a grade-matched, surgically treated cohort of 145 self-identified Black (BL) and 145 self-identified White (WH) patients with genetic ancestry estimation. A generalized linear model adjusted with age, preoperative prostate-specific antigen (PSA), and Gleason Grade Group and filtered for germline copy number variations (gCNV) identified 143 loci where copy number varied significantly by percent African ancestry, clustering on chromosomes 6p, 10q, 11p, 12p, and 17p. Multivariable Cox regression models adjusted for age, preoperative PSA levels, and Gleason Grade Group revealed that chromosome 8q gains (including MYC) were significantly associated with biochemical recurrence and metastasis, independent of genetic ancestry. Finally, Treg density in BL and WH patients was significantly correlated with percent genome altered, and these findings were validated in the TCGA cohort. Taken together, our findings identify specific sCNA linked to genetic ancestry and outcome in primary prostate cancer and demonstrate that Treg infiltration varies by global sCNA burden in primary disease.https://doi.org/10.1172/jci.insight.162409Genetics
spellingShingle Thiago Vidotto
Eddie L. Imada
Farzana Faisal
Sanjana Murali
Adrianna A. Mendes
Harsimar Kaur
Siqun Zheng
Jianfeng Xu
Edward M. Schaeffer
William B. Isaacs
Karen S. Sfanos
Luigi Marchionni
Tamara L. Lotan
Association of self-identified race and genetic ancestry with the immunogenomic landscape of primary prostate cancer
JCI Insight
Genetics
title Association of self-identified race and genetic ancestry with the immunogenomic landscape of primary prostate cancer
title_full Association of self-identified race and genetic ancestry with the immunogenomic landscape of primary prostate cancer
title_fullStr Association of self-identified race and genetic ancestry with the immunogenomic landscape of primary prostate cancer
title_full_unstemmed Association of self-identified race and genetic ancestry with the immunogenomic landscape of primary prostate cancer
title_short Association of self-identified race and genetic ancestry with the immunogenomic landscape of primary prostate cancer
title_sort association of self identified race and genetic ancestry with the immunogenomic landscape of primary prostate cancer
topic Genetics
url https://doi.org/10.1172/jci.insight.162409
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