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Meta-Analysis
. 2023 Jul;84(1):13-21.
doi: 10.1016/j.eururo.2023.01.022. Epub 2023 Mar 3.

Evidence of Novel Susceptibility Variants for Prostate Cancer and a Multiancestry Polygenic Risk Score Associated with Aggressive Disease in Men of African Ancestry

Fei Chen  1 Ravi K Madduri  2 Alex A Rodriguez  2 Burcu F Darst  3 Alisha Chou  1 Xin Sheng  1 Anqi Wang  1 Jiayi Shen  1 Edward J Saunders  4 Suhn K Rhie  5 Jeannette T Bensen  6 Sue A Ingles  1 Rick A Kittles  7 Sara S Strom  8 Benjamin A Rybicki  9 Barbara Nemesure  10 William B Isaacs  11 Janet L Stanford  12 Wei Zheng  13 Maureen Sanderson  14 Esther M John  15 Jong Y Park  16 Jianfeng Xu  17 Ying Wang  18 Sonja I Berndt  19 Chad D Huff  8 Edward D Yeboah  20 Yao Tettey  21 Joseph Lachance  22 Wei Tang  23 Christopher T Rentsch  24 Kelly Cho  25 Benjamin H Mcmahon  26 Richard B Biritwum  27 Andrew A Adjei  28 Evelyn Tay  27 Ann Truelove  29 Shelley Niwa  29 Thomas A Sellers  16 Kosj Yamoah  30 Adam B Murphy  31 Dana C Crawford  32 Alpa V Patel  18 William S Bush  32 Melinda C Aldrich  33 Olivier Cussenot  34 Gyorgy Petrovics  35 Jennifer Cullen  36 Christine M Neslund-Dudas  9 Mariana C Stern  1 Zsofia Kote-Jarai  4 Koveela Govindasami  4 Michael B Cook  19 Anand P Chokkalingam  37 Ann W Hsing  15 Phyllis J Goodman  38 Thomas J Hoffmann  39 Bettina F Drake  40 Jennifer J Hu  41 Jacob M Keaton  42 Jacklyn N Hellwege  43 Peter E Clark  44 Mohamed Jalloh  45 Serigne M Gueye  45 Lamine Niang  45 Olufemi Ogunbiyi  46 Michael O Idowu  46 Olufemi Popoola  46 Akindele O Adebiyi  46 Oseremen I Aisuodionoe-Shadrach  47 Hafees O Ajibola  47 Mustapha A Jamda  47 Olabode P Oluwole  47 Maxwell Nwegbu  47 Ben Adusei  48 Sunny Mante  48 Afua Darkwa-Abrahams  27 James E Mensah  27 Halimatou Diop  49 Stephen K Van Den Eeden  50 Pascal Blanchet  51 Jay H Fowke  52 Graham Casey  53 Anselm J Hennis  10 Alexander Lubwama  54 Ian M Thompson Jr  55 Robin Leach  56 Douglas F Easton  57 Michael H Preuss  58 Ruth J Loos  58 Susan M Gundell  1 Peggy Wan  1 James L Mohler  59 Elizabeth T Fontham  60 Gary J Smith  61 Jack A Taylor  62 Shiv Srivastava  63 Rosaline A Eeles  64 John D Carpten  65 Adam S Kibel  66 Luc Multigner  67 Marie-Élise Parent  68 Florence Menegaux  69 Geraldine Cancel-Tassin  34 Eric A Klein  70 Caroline Andrews  71 Timothy R Rebbeck  72 Laurent Brureau  51 Stefan Ambs  23 Todd L Edwards  13 Stephen Watya  54 Stephen J Chanock  19 John S Witte  73 William J Blot  74 J Michael Gaziano  75 Amy C Justice  76 David V Conti  1 Christopher A Haiman  77
Affiliations
Meta-Analysis

Evidence of Novel Susceptibility Variants for Prostate Cancer and a Multiancestry Polygenic Risk Score Associated with Aggressive Disease in Men of African Ancestry

Fei Chen et al. Eur Urol. 2023 Jul.

Abstract

Background: Genetic factors play an important role in prostate cancer (PCa) susceptibility.

Objective: To discover common genetic variants contributing to the risk of PCa in men of African ancestry.

Design, setting, and participants: We conducted a meta-analysis of ten genome-wide association studies consisting of 19378 cases and 61620 controls of African ancestry.

Outcome measurements and statistical analysis: Common genotyped and imputed variants were tested for their association with PCa risk. Novel susceptibility loci were identified and incorporated into a multiancestry polygenic risk score (PRS). The PRS was evaluated for associations with PCa risk and disease aggressiveness.

Results and limitations: Nine novel susceptibility loci for PCa were identified, of which seven were only found or substantially more common in men of African ancestry, including an African-specific stop-gain variant in the prostate-specific gene anoctamin 7 (ANO7). A multiancestry PRS of 278 risk variants conferred strong associations with PCa risk in African ancestry studies (odds ratios [ORs] >3 and >5 for men in the top PRS decile and percentile, respectively). More importantly, compared with men in the 40-60% PRS category, men in the top PRS decile had a significantly higher risk of aggressive PCa (OR = 1.23, 95% confidence interval = 1.10-1.38, p = 4.4 × 10-4).

Conclusions: This study demonstrates the importance of large-scale genetic studies in men of African ancestry for a better understanding of PCa susceptibility in this high-risk population and suggests a potential clinical utility of PRS in differentiating between the risks of developing aggressive and nonaggressive disease in men of African ancestry.

Patient summary: In this large genetic study in men of African ancestry, we discovered nine novel prostate cancer (PCa) risk variants. We also showed that a multiancestry polygenic risk score was effective in stratifying PCa risk, and was able to differentiate risk of aggressive and nonaggressive disease.

Keywords: African ancestry; Aggressive prostate cancer; Polygenic risk score; Prostate cancer; Susceptibility loci.

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Figures

Fig. 1 –
Fig. 1 –
Genome-wide associations with prostate cancer risk. The association for each variant was estimated in each study/consortium and meta-analyzed across studies using a fixed-effect inverse-variance-weighted method. The nine novel association signals are highlighted in orange. The known risk associations are not shown in this plot. The dash line represents the genome-wide significance at p < 5 × 10 –8.
Fig. 2 –
Fig. 2 –
Association of the multiancestry PRS with aggressive and nonaggressive forms of prostate cancer. Association was assessed comparing prostate cancer cases by Gleason score, tumor stage, and metastatic or fatal prostate cancer with controls. Results were obtained from each individual study and then meta-analyzed across studies. The x axis indicates the PRS category. The y axis indicates the ORs, with error bars representing the 95% CIs for each PRS category compared with the 40–60% PRS category. The dotted horizontal line corresponds to an OR of 1. ORs and 95% CIs for each PRS decile and/or strata are provided in Supplementary Tables 13 and 15. CI = confidence interval; OR = odds ratio; PRS = polygenic risk score.

Comment in

References

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