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Johnson JR, Mavingire N, Woods-Burnham L, Walker M, Lewis D, Hooker SE, Galloway D, Rivers B, Kittles RA. The complex interplay of modifiable risk factors affecting prostate cancer disparities in African American men. Nat Rev Urol 2024; 21:422-432. [PMID: 38307952 DOI: 10.1038/s41585-023-00849-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2023] [Indexed: 02/04/2024]
Abstract
Prostate cancer is the second most commonly diagnosed non-skin malignancy and the second leading cause of cancer death among men in the USA. However, the mortality rate of African American men aged 40-60 years is almost 2.5-fold greater than that of European American men. Despite screening and diagnostic and therapeutic advances, disparities in prostate cancer incidence and outcomes remain prevalent. The reasons that lead to this disparity in outcomes are complex and multifactorial. Established non-modifiable risk factors such as age and genetic predisposition contribute to this disparity; however, evidence suggests that modifiable risk factors (including social determinants of health, diet, steroid hormones, environment and lack of diversity in enrolment in clinical trials) are prominent contributing factors to the racial disparities observed. Disparities involved in the diagnosis, treatment and survival of African American men with prostate cancer have also been correlated with low socioeconomic status, education and lack of access to health care. The effects and complex interactions of prostate cancer modifiable risk factors are important considerations for mitigating the incidence and outcomes of this disease in African American men.
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Affiliation(s)
- Jabril R Johnson
- Department of Microbiology, Biochemistry & Immunology, Morehouse School of Medicine, Atlanta, GA, USA.
| | - Nicole Mavingire
- Department of Physiology, Morehouse School of Medicine, Atlanta, GA, USA
| | | | - Mya Walker
- Department of Diabetes and Cancer Metabolism, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Deyana Lewis
- Department of Community Health and Preventive Medicine, Morehouse School of Medicine, Atlanta, GA, USA
| | - Stanley E Hooker
- Department of Population Sciences, Division of Health Equities, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Dorothy Galloway
- Department of Population Sciences, Division of Health Equities, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Brian Rivers
- Department of Community Health and Preventive Medicine, Morehouse School of Medicine, Atlanta, GA, USA
| | - Rick A Kittles
- Department of Community Health and Preventive Medicine, Morehouse School of Medicine, Atlanta, GA, USA
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Ramakrishnan S, Cortes-Gomez E, Athans SR, Attwood KM, Rosario SR, Kim SJ, Mager DE, Isenhart EG, Hu Q, Wang J, Woloszynska A. Race-specific coregulatory and transcriptomic profiles associated with DNA methylation and androgen receptor in prostate cancer. Genome Med 2024; 16:52. [PMID: 38566104 PMCID: PMC10988846 DOI: 10.1186/s13073-024-01323-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 03/22/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Prostate cancer is a significant health concern, particularly among African American (AA) men who exhibit higher incidence and mortality compared to European American (EA) men. Understanding the molecular mechanisms underlying these disparities is imperative for enhancing clinical management and achieving better outcomes. METHODS Employing a multi-omics approach, we analyzed prostate cancer in both AA and EA men. Using Illumina methylation arrays and RNA sequencing, we investigated DNA methylation and gene expression in tumor and non-tumor prostate tissues. Additionally, Boolean analysis was utilized to unravel complex networks contributing to racial disparities in prostate cancer. RESULTS When comparing tumor and adjacent non-tumor prostate tissues, we found that DNA hypermethylated regions are enriched for PRC2/H3K27me3 pathways and EZH2/SUZ12 cofactors. Olfactory/ribosomal pathways and distinct cofactors, including CTCF and KMT2A, were enriched in DNA hypomethylated regions in prostate tumors from AA men. We identified race-specific inverse associations of DNA methylation with expression of several androgen receptor (AR) associated genes, including the GATA family of transcription factors and TRIM63. This suggests that race-specific dysregulation of the AR signaling pathway exists in prostate cancer. To investigate the effect of AR inhibition on race-specific gene expression changes, we generated in-silico patient-specific prostate cancer Boolean networks. Our simulations revealed prolonged AR inhibition causes significant dysregulation of TGF-β, IDH1, and cell cycle pathways specifically in AA prostate cancer. We further quantified global gene expression changes, which revealed differential expression of genes related to microtubules, immune function, and TMPRSS2-fusion pathways, specifically in prostate tumors of AA men. Enrichment of these pathways significantly correlated with an altered risk of disease progression in a race-specific manner. CONCLUSIONS Our study reveals unique signaling networks underlying prostate cancer biology in AA and EA men, offering potential insights for clinical management strategies tailored to specific racial groups. Targeting AR and associated pathways could be particularly beneficial in addressing the disparities observed in prostate cancer outcomes in the context of AA and EA men. Further investigation into these identified pathways may lead to the development of personalized therapeutic approaches to improve outcomes for prostate cancer patients across different racial backgrounds.
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Affiliation(s)
- Swathi Ramakrishnan
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Eduardo Cortes-Gomez
- Department of Bioinformatics and Biostatistics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
- Department of Biostatistics, SUNY University at Buffalo, Kimball Tower, Buffalo, NY, 14214, USA
| | - Sarah R Athans
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Kristopher M Attwood
- Department of Bioinformatics and Biostatistics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Spencer R Rosario
- Department of Bioinformatics and Biostatistics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Se Jin Kim
- Department of Pharmaceutical Sciences, SUNY University at Buffalo, Buffalo, NY, 14214, USA
| | - Donald E Mager
- Department of Pharmaceutical Sciences, SUNY University at Buffalo, Buffalo, NY, 14214, USA
- Enhanced Pharmacodynamics, LLC, Buffalo, NY, 14203, USA
| | - Emily G Isenhart
- Department of Cancer Genetics and Genomics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Qiang Hu
- Department of Bioinformatics and Biostatistics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Jianmin Wang
- Department of Bioinformatics and Biostatistics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Anna Woloszynska
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA.
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Wadhwa A, Roscoe C, Duran EA, Kwan L, Haroldsen CL, Shelton JB, Cullen J, Knudsen BS, Rettig MB, Pyarajan S, Nickols NG, Maxwell KN, Yamoah K, Rose BS, Rebbeck TR, Iyer HS, Garraway IP. Neighborhood Deprivation, Race and Ethnicity, and Prostate Cancer Outcomes Across California Health Care Systems. JAMA Netw Open 2024; 7:e242852. [PMID: 38502125 PMCID: PMC10951732 DOI: 10.1001/jamanetworkopen.2024.2852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 01/25/2024] [Indexed: 03/20/2024] Open
Abstract
Importance Non-Hispanic Black (hereafter, Black) individuals experience worse prostate cancer outcomes due to socioeconomic and racial inequities of access to care. Few studies have empirically evaluated these disparities across different health care systems. Objective To describe the racial and ethnic and neighborhood socioeconomic status (nSES) disparities among residents of the same communities who receive prostate cancer care in the US Department of Veterans Affairs (VA) health care system vs other settings. Design, Setting, and Participants This cohort study obtained data from the VA Central Cancer Registry for veterans with prostate cancer who received care within the VA Greater Los Angeles Healthcare System (VA cohort) and from the California Cancer Registry (CCR) for nonveterans who received care outside the VA setting (CCR cohort). The cohorts consisted of all males with incident prostate cancer who were living within the same US Census tracts. These individuals received care between 2000 and 2018 and were followed up until death from any cause or censoring on December 31, 2018. Data analyses were conducted between September 2022 and December 2023. Exposures Health care setting, self-identified race and ethnicity (SIRE), and nSES. Main Outcomes and Measures The primary outcome was all-cause mortality (ACM). Cox proportional hazards regression models were used to estimate hazard ratios for associations of SIRE and nSES with prostate cancer outcomes in the VA and CCR cohorts. Results Included in the analysis were 49 461 males with prostate cancer. Of these, 1881 males were in the VA cohort (mean [SD] age, 65.3 [7.7] years; 833 Black individuals [44.3%], 694 non-Hispanic White [hereafter, White] individuals [36.9%], and 354 individuals [18.8%] of other or unknown race). A total of 47 580 individuals were in the CCR cohort (mean [SD] age, 67.0 [9.6] years; 8183 Black individuals [17.2%], 26 206 White individuals [55.1%], and 13 191 individuals [27.8%] of other or unknown race). In the VA cohort, there were no racial disparities observed for metastasis, ACM, or prostate cancer-specific mortality (PCSM). However, in the CCR cohort, the racial disparities were observed for metastasis (adjusted odds ratio [AOR], 1.36; 95% CI, 1.22-1.52), ACM (adjusted hazard ratio [AHR], 1.13; 95% CI, 1.04-1.24), and PCSM (AHR, 1.15; 95% CI, 1.05-1.25). Heterogeneity was observed for the racial disparity in ACM in the VA vs CCR cohorts (AHR, 0.90 [95% CI, 0.76-1.06] vs 1.13 [95% CI, 1.04-1.24]; P = .01). No evidence of nSES disparities was observed for any prostate cancer outcomes in the VA cohort. However, in the CCR cohort, heterogeneity was observed for nSES disparities with ACM (AHR, 0.82; 95% CI, 0.80-0.84; P = .002) and PCSM (AHR, 0.86; 95% CI, 0.82-0.89; P = .007). Conclusions and Relevance Results of this study suggest that racial and nSES disparities were wider among patients seeking care outside of the VA health care system. Health systems-related interventions that address access barriers may mitigate racial and socioeconomic disparities in prostate cancer.
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Affiliation(s)
- Ananta Wadhwa
- Department of Surgical and Perioperative Care, Veterans Affairs (VA) Greater Los Angeles Healthcare System, Los Angeles, California
| | - Charlotte Roscoe
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Elizabeth A. Duran
- VA San Diego Healthcare System, San Diego, California
- Department of Radiation Oncology, University of California, San Diego, San Diego
- Center for Health Equity Education and Research, University of California, San Diego, La Jolla
| | - Lorna Kwan
- Department of Surgical and Perioperative Care, Veterans Affairs (VA) Greater Los Angeles Healthcare System, Los Angeles, California
- Department of Urology, David Geffen School of Medicine at UCLA (University of California, Los Angeles), Los Angeles
| | - Candace L. Haroldsen
- Department of Surgical and Perioperative Care, Veterans Affairs (VA) Greater Los Angeles Healthcare System, Los Angeles, California
- Department of Internal Medicine, Division of Epidemiology, University of Utah, Salt Lake City
- IDEAS Center (COIN), VA Salt Lake City Healthcare System, Salt Lake City, Utah
| | - Jeremy B. Shelton
- Department of Surgical and Perioperative Care, Veterans Affairs (VA) Greater Los Angeles Healthcare System, Los Angeles, California
| | - Jennifer Cullen
- Department of Population and Quantitative Health Sciences, Case Western Reserve, Cleveland, Ohio
| | - Beatrice S. Knudsen
- Department of Internal Medicine, Division of Epidemiology, University of Utah, Salt Lake City
- IDEAS Center (COIN), VA Salt Lake City Healthcare System, Salt Lake City, Utah
| | - Mathew B. Rettig
- Department of Surgical and Perioperative Care, Veterans Affairs (VA) Greater Los Angeles Healthcare System, Los Angeles, California
- Department of Urology, David Geffen School of Medicine at UCLA (University of California, Los Angeles), Los Angeles
- Department of Medicine, Division of Hematology-Oncology, David Geffen School of Medicine at UCLA, Los Angeles
- UCLA Jonsson Comprehensive Cancer Center, Los Angeles
| | | | - Nicholas G. Nickols
- Department of Surgical and Perioperative Care, Veterans Affairs (VA) Greater Los Angeles Healthcare System, Los Angeles, California
- Department of Urology, David Geffen School of Medicine at UCLA (University of California, Los Angeles), Los Angeles
- UCLA Jonsson Comprehensive Cancer Center, Los Angeles
| | - Kara N. Maxwell
- Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia
- Department of Medicine, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, Pennsylvania
- Department of Genetics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia
| | - Kosj Yamoah
- Department of Radiation Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida
- James A. Haley Veterans Hospital, Tampa, Florida
| | - Brent S. Rose
- VA San Diego Healthcare System, San Diego, California
- Department of Radiation Oncology, University of California, San Diego, San Diego
- Center for Health Equity Education and Research, University of California, San Diego, La Jolla
| | - Timothy R. Rebbeck
- VA Boston Healthcare System, Boston, Massachusetts
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Hari S. Iyer
- Section of Cancer Epidemiology and Health Outcomes, Rutgers Cancer Institute of New Jersey, New Brunswick
| | - Isla P. Garraway
- Department of Surgical and Perioperative Care, Veterans Affairs (VA) Greater Los Angeles Healthcare System, Los Angeles, California
- Department of Urology, David Geffen School of Medicine at UCLA (University of California, Los Angeles), Los Angeles
- UCLA Jonsson Comprehensive Cancer Center, Los Angeles
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Kensler KH, Johnson R, Morley F, Albrair M, Dickerman BA, Gulati R, Holt SK, Iyer HS, Kibel AS, Lee JR, Preston MA, Vassy JL, Wolff EM, Nyame YA, Etzioni R, Rebbeck TR. Prostate cancer screening in African American men: a review of the evidence. J Natl Cancer Inst 2024; 116:34-52. [PMID: 37713266 PMCID: PMC10777677 DOI: 10.1093/jnci/djad193] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/25/2023] [Accepted: 08/30/2023] [Indexed: 09/16/2023] Open
Abstract
BACKGROUND Prostate cancer is the most diagnosed cancer in African American men, yet prostate cancer screening regimens in this group are poorly guided by existing evidence, given underrepresentation of African American men in prostate cancer screening trials. It is critical to optimize prostate cancer screening and early detection in this high-risk group because underdiagnosis may lead to later-stage cancers at diagnosis and higher mortality while overdiagnosis may lead to unnecessary treatment. METHODS We performed a review of the literature related to prostate cancer screening and early detection specific to African American men to summarize the existing evidence available to guide health-care practice. RESULTS Limited evidence from observational and modeling studies suggests that African American men should be screened for prostate cancer. Consideration should be given to initiating screening of African American men at younger ages (eg, 45-50 years) and at more frequent intervals relative to other racial groups in the United States. Screening intervals can be optimized by using a baseline prostate-specific antigen measurement in midlife. Finally, no evidence has indicated that African American men would benefit from screening beyond 75 years of age; in fact, this group may experience higher rates of overdiagnosis at older ages. CONCLUSIONS The evidence base for prostate cancer screening in African American men is limited by the lack of large, randomized studies. Our literature search supported the need for African American men to be screened for prostate cancer, for initiating screening at younger ages (45-50 years), and perhaps screening at more frequent intervals relative to men of other racial groups in the United States.
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Affiliation(s)
- Kevin H Kensler
- Department of Population Health Sciences, Weill Cornell Medical Center, New York, NY, USA
| | - Roman Johnson
- Center for Global Health, Massachusetts General Hospital, Boston, MA, USA
| | - Faith Morley
- Department of Population Health Sciences, Weill Cornell Medical Center, New York, NY, USA
| | - Mohamed Albrair
- Department of Global Health, University of Washington, Seattle, WA, USA
- Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Barbra A Dickerman
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Roman Gulati
- Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Sarah K Holt
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Hari S Iyer
- Section of Cancer Epidemiology and Health Outcomes, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - Adam S Kibel
- Department of Urology, Brigham and Women’s Hospital, Boston, MA, USA
| | - Jenney R Lee
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Mark A Preston
- Department of Urology, Brigham and Women’s Hospital, Boston, MA, USA
| | - Jason L Vassy
- VA Boston Healthcare System, Boston, MA, USA
- Division of General Internal Medicine and Primary Care, Department of Medicine, Brigham and Women’s Hospital, Boston, MA, USA
| | - Erika M Wolff
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Yaw A Nyame
- Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Ruth Etzioni
- Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Timothy R Rebbeck
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Division of Population Sciences, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
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Vickers AJ, Mahal B, Ogunwobi OO. Racism Does Not Cause Prostate Cancer, It Causes Prostate Cancer Death. J Clin Oncol 2023; 41:2151-2154. [PMID: 36693227 PMCID: PMC10448930 DOI: 10.1200/jco.22.02203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/04/2022] [Accepted: 12/15/2022] [Indexed: 01/25/2023] Open
Affiliation(s)
- Andrew J. Vickers
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Brandon Mahal
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL
| | - Olorunseun O. Ogunwobi
- Hunter College Center for Cancer Health Disparities Research, Hunter College, City University of New York, NY
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