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Bugoye FC, Torrorey-Sawe R, Biegon R, Dharsee N, Mafumiko FMS, Patel K, Mining SK. Mutational spectrum of DNA damage and mismatch repair genes in prostate cancer. Front Genet 2023; 14:1231536. [PMID: 37732318 PMCID: PMC10507418 DOI: 10.3389/fgene.2023.1231536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/16/2023] [Indexed: 09/22/2023] Open
Abstract
Over the past few years, a number of studies have revealed that a significant number of men with prostate cancer had genetic defects in the DNA damage repair gene response and mismatch repair genes. Certain of these modifications, notably gene alterations known as homologous recombination (HRR) genes; PALB2, CHEK2 BRCA1, BRCA2, ATM, and genes for DNA mismatch repair (MMR); MLH1, MSH2, MSH6, and PMS2 are connected to a higher risk of prostate cancer and more severe types of the disease. The DNA damage repair (DDR) is essential for constructing and diversifying the antigen receptor genes required for T and B cell development. But this DDR imbalance results in stress on DNA replication and transcription, accumulation of mutations, and even cell death, which compromises tissue homeostasis. Due to these impacts of DDR anomalies, tumor immunity may be impacted, which may encourage the growth of tumors, the release of inflammatory cytokines, and aberrant immune reactions. In a similar vein, people who have altered MMR gene may benefit greatly from immunotherapy. Therefore, for these treatments, mutational genetic testing is indicated. Mismatch repair gene (MMR) defects are also more prevalent than previously thought, especially in patients with metastatic disease, high Gleason scores, and diverse histologies. This review summarizes the current information on the mutation spectrum and clinical significance of DDR mechanisms, such as HRR and MMR abnormalities in prostate cancer, and explains how patient management is evolving as a result of this understanding.
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Affiliation(s)
- Fidelis Charles Bugoye
- Government Chemist Laboratory Authority, Directorate of Forensic Science and DNA Services, Dar es Salaam, Tanzania
- Department of Pathology, Moi Teaching and Referral Hospital, Moi University, Eldoret, Kenya
| | - Rispah Torrorey-Sawe
- Department of Pathology, Moi Teaching and Referral Hospital, Moi University, Eldoret, Kenya
| | - Richard Biegon
- Department of Pathology, Moi Teaching and Referral Hospital, Moi University, Eldoret, Kenya
| | | | - Fidelice M. S. Mafumiko
- Government Chemist Laboratory Authority, Directorate of Forensic Science and DNA Services, Dar es Salaam, Tanzania
| | - Kirtika Patel
- Department of Pathology, Moi Teaching and Referral Hospital, Moi University, Eldoret, Kenya
| | - Simeon K. Mining
- Department of Pathology, Moi Teaching and Referral Hospital, Moi University, Eldoret, Kenya
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Lyu F, Shang SY, Gao XS, Ma MW, Xie M, Ren XY, Liu MZ, Chen JY, Li SS, Huang L. Uncovering the Secrets of Prostate Cancer's Radiotherapy Resistance: Advances in Mechanism Research. Biomedicines 2023; 11:1628. [PMID: 37371723 PMCID: PMC10296152 DOI: 10.3390/biomedicines11061628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/20/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
Prostate cancer (PCa) is a critical global public health issue with its incidence on the rise. Radiation therapy holds a primary role in PCa treatment; however, radiation resistance has become increasingly challenging as we uncover more about PCa's pathogenesis. Our review aims to investigate the multifaceted mechanisms underlying radiation therapy resistance in PCa. Specifically, we will examine how various factors, such as cell cycle regulation, DNA damage repair, hypoxic conditions, oxidative stress, testosterone levels, epithelial-mesenchymal transition, and tumor stem cells, contribute to radiation therapy resistance. By exploring these mechanisms, we hope to offer new insights and directions towards overcoming the challenges of radiation therapy resistance in PCa. This can also provide a theoretical basis for the clinical application of novel ultra-high-dose-rate (FLASH) radiotherapy in the era of PCa.
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Affiliation(s)
- Feng Lyu
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
| | - Shi-Yu Shang
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
- First Clinical Medical School, Hebei North University, Zhangjiakou 075000, China
| | - Xian-Shu Gao
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
| | - Ming-Wei Ma
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
| | - Mu Xie
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
| | - Xue-Ying Ren
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
| | - Ming-Zhu Liu
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
| | - Jia-Yan Chen
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
| | - Shan-Shi Li
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
| | - Lei Huang
- Department of Radiation Oncology, Peking University First Hospital, Beijing 100034, China; (F.L.); (S.-Y.S.); (M.-W.M.); (M.X.); (X.-Y.R.); (M.-Z.L.); (J.-Y.C.); (S.-S.L.); (L.H.)
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Kakoo A, Al-Attar M, Rasheed T. Exonic variants in multiple myeloma patients associated with relapsed/ refractory and response to bortezomib regimens. Saudi J Biol Sci 2022; 29:610-614. [PMID: 35002457 PMCID: PMC8716956 DOI: 10.1016/j.sjbs.2021.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 11/30/2022] Open
Abstract
Novel treatment in multiple myeloma represented by proteasome inhibitors, immunomodulatory drugs and monoclonal antibodies have produced a deep response. However, relapses are possible, and all classes of drugs are refractory to patients. Next-generation sequencing has improved our understanding of the multiple myeloma genome related to drug resistance and has discovered many genomic variants. Therefore, this study was conducted to investigate new variants associated with drug resistance in MM patients who relapsed and refractory to bortezomib regimen and daratumumab treatment using next-generation sequencing for whole-exome sequencing. Peripheral blood samples were collected in EDTA tubes from six patients; four were in relapsed and refractory to bortezomib regimens and daratumumab; two patients responded to bortezomib regimens. Whole-exome sequencing was performed by the MGI-DNBSEQ-G400 instrument. We identified 21 variants in multiple myeloma patients. Seventeen variants were found in relapsed and refractory multiple myeloma in 11 genes (GNAQ, PMS1, CREB1, NSUNS2, PIK3CG, ROS1, PMS2, FIT4, KDM5A, STK11 and ZFHX3). And four variants were identified in two patients with response to bortezomib regimens in 4 genes (RAF1, CREB1, ZFHX3 and INSR). We have observed several genetic variants in many genes that may have been associated with the poor prognosis and poor response to treatment in these patients. These values should be further confirmed in large sample studies using the RNA-seq technique to identify genome expression.
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Key Words
- BCL-2, B-cell lymphoma 2
- BWA, Burrows-Wheeler Aligner
- GATK, Genome Analysis Toolkit
- IGV, Integrative Genomic Viewer
- MAPK, mitogen-activated protein
- MCL-1, myeloid cell leukaemia-1
- MM, multiple myeloma
- MMR, mismatch repair
- Multiple myeloma
- M−CSF, macrophage colony-stimulating factor
- NF-кB, nuclear factor kappa B
- NGS, Next-generation sequence
- Next-generation sequencing
- RANKL, receptor activator of nuclear factors-кB ligand
- RTKs, tyrosine kinases receptors
- SNP, single nucleotide polymorphism
- VEGF-C, vascular endothelial growth factors receptors
- VUS, variant unknown significant
- WES, whole exome sequence
- drug resistance
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Affiliation(s)
- Ashraf Kakoo
- Department- College of Science, Salahaddin University, Erbil, Iraq
| | - Mustafa Al-Attar
- Department- College of Science, Salahaddin University, Erbil, Iraq
| | - Taban Rasheed
- Department- College of Science, Salahaddin University, Erbil, Iraq
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Decker JM, Filho OV, Freitas MO, Silva-Fernandes IJ, Dantas TS, Campêlo CS, Cunha MD, Silva PG, Sousa FB. PMS2: a potential prognostic protein marker in oral squamous cell carcinoma. Med Oral Patol Oral Cir Bucal 2021; 26:e451-e458. [PMID: 33247565 PMCID: PMC8254887 DOI: 10.4317/medoral.24303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/16/2020] [Indexed: 02/02/2023] Open
Abstract
Background An increase in oral squamous cell carcinoma (OSCC) cases was observed despite the reduction in exposure to classic risk factors. Although the exact cause of this trend remains unknown, epigenetic factors could be contributing to an increased occurrence of these tumors. This study aims to assess the influence of PMS2 protein immunoexpression on the prognosis of patients with OSCC.
Material and Methods This study comprised 76 cases of OSCC treated between 2011 and 2016. Immunohistochemical staining for PMS2 was performed. For evaluation, 10 fields per histological section were photographed at a 400x magnification and positively-stained cells were counted with Image J. Mann-Whitney and Kruskal-Wallis tests were used to compare the immunolabeling pattern with the clinical-pathological and prognostic characteristics. Survival analysis was performed with Chi-square, Long-Rank Mantel-Cox and Cox regression tests (p<0.05).
Results An overexpression of PMS2 was observed in N0/1 tumors and in oral cancers found in unusual locations. In patients ≤60 years of age, high levels of PMS2 ( >60%; p=0.041) were associated with low survival (p=0.029). In multivariate analysis, surgery combined with chemotherapy (p=0.030) and high PMS2 immunoexpression (p=0.042) significantly increased the risk of death for ≤60 years old patients.
Conclusions The findings of this study indicate that PMS2 can be a potential prognostic protein marker in OSCC patients 60 years of age and younger. Key words:Squamous cell carcinoma, mouth neoplasms, mismatch repair endonuclease PMS2, survival.
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Affiliation(s)
- J-M Decker
- Department of Dentistry, Unichristus Rua João Adolfo Gurgel 133 60192-345, Fortaleza, Ceará, Brazil
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Effects of a Novel Thiadiazole Derivative with High Anticancer Activity on Cancer Cell Immunogenic Markers: Mismatch Repair System, PD-L1 Expression, and Tumor Mutation Burden. Pharmaceutics 2021; 13:pharmaceutics13060885. [PMID: 34203761 PMCID: PMC8232699 DOI: 10.3390/pharmaceutics13060885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/08/2021] [Accepted: 06/09/2021] [Indexed: 12/31/2022] Open
Abstract
Microsatellite instability (MSI), tumor mutation burden (TMB), and programmed cell death ligand-1 (PD-L1) are particularly known as immunotherapy predictive biomarkers. MSI and TMB are closely related to DNA mismatch repair (MMR) pathway functionality, while the PD-L1 checkpoint mediates cancer cell evasion from immune surveillance via the PD-L1/PD-1 axis. Among all the novel triazolo[3,4-b]thiadiazole derivatives, the compound KA39 emerged as the most potent anticancer agent. In the present study, potential alterations in MSI, TMB, and/or PD-L1 expression upon cell treatment with KA39 are explored. We tested three MMR-deficient (DLD-1, LS174T, and DU-145) and two MMR-proficient (HT-29 and PC-3) human cancer cell lines. Our findings support KA39-induced PD-L1 overexpression in all cancer cell lines, although the most outstanding increase was observed in MMR-proficient HT-29 cells. MSI analysis showed that KA39 affects the MMR system, impairing its recognition or repair activity, particularly in MMR-deficient DLD-1 and DU-145 cells, enhancing oligonucleotide production. There were no remarkable alterations in the TMB between untreated and treated cells, indicating that KA39 does not belong to mutagenic agents. Taking together the significant in vitro anticancer activity with PD-L1 upregulation and MSI increase, KA39 should be investigated further for its implication in chemo-immunotherapy of cancer.
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Mismatch Repair Proteins in Oropharyngeal Squamous Cell Carcinoma: A Retrospective Observational Study. Head Neck Pathol 2021; 15:803-816. [PMID: 33501557 PMCID: PMC8384930 DOI: 10.1007/s12105-021-01286-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 01/02/2021] [Indexed: 12/24/2022]
Abstract
Cases of oropharyngeal squamous cell carcinoma are on the rise and the disease now ranks as the most common human papillomavirus-related cancer. Although risk factors have been extensively discussed in the literature, the role of the DNA mismatch repair system remains unanswered. To evaluate the impact of the DNA mismatch repair (MMR) protein immunostaining on the tumor progression and prognosis of oropharyngeal squamous cell carcinoma (OPSCC). This retrospective observational study comprised 50 cases of OPSCC. Immunohistochemistry for MSH2, MSH6, PMS2, MLH1, Ki67, p16 and caspase-3 was performed. The expression of these proteins was assessed in surgical resection margins, primary tumor (PT), and lymph node metastasis (LNM) of p16+ and p16- OPSCC. Clinical-pathological involvement in immunostaining was evaluated with Kruskal-Wallis/Dunn or Mann-Whitney test, Wilcoxon test and Spearman's correlation. Overall survival (OS) was analyzed with Log-Rank Mantel-Cox and Cox regression. MSH6 and caspase-3 showed high expression in PT (p16+ and p16 -) and in LNM (p16+ and p16-), and high levels of MSH2 were found in LNM (p16+ and p16 -). An imbalance in MutSα also was observed. PMS2 and caspase-3 expression was associated with poor survival in p16- OPSCC and, in multivariate analysis, MSH2, MSH6 and MLH1 had the poorest prognostic impact in p16+ OPSCC. MMR protein immunostaining is involved in OPSCC progression, dissemination and prognosis. The overexpression of MMR proteins as a response to increased DNA mismatch caused by cell proliferation and MSH2, MSH6 and MLH1 proteins might constitute a prognostic marker in p16+ OPSCC.
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Gzil A, Jaworski D, Antosik P, Zarębska I, Durślewicz J, Dominiak J, Kasperska A, Neska-Długosz I, Grzanka D, Szylberg Ł. The impact of TP53BP1 and MLH1 on metastatic capability in cases of locally advanced prostate cancer and their usefulness in clinical practice. Urol Oncol 2020; 38:600.e17-600.e26. [PMID: 32280038 DOI: 10.1016/j.urolonc.2020.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 01/30/2020] [Accepted: 02/09/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Lymph node (LN) metastases increase the risk of death from prostate cancer (CaP). The dysfunction of factors responsible for DNA injury detection may promote the evolution of localized primary tumors into the metastatic form. METHODS In this study, 52 cases of CaP were analyzed. The cases were divided into groups of CaP without metastases (N0), with metastases to the LNs (N+), and metastatic LN tissue. Immunohistochemical examinations were performed with antibodies against MDC1, TP53BP1, MLH1, MSH2, MSH6, and PMS2. RESULTS Statistical analysis showed lower nuclear expression of TP53BP1 in N+ cases than in N0 cases (P = 0.026). Nuclear TP53BP1 expression was lower in LN cases than in N+ cases (P = 0.019). Statistical analysis showed lower nuclear expression of MLH1 in N+ cases than in to N0 cases (P = 0.003). CONCLUSION Decreased expression of both MLH1 and TP53B1 were demonstrated in N+ cases of CaP. This observation could help to determine the risk of nodal metastasis, and to select appropriate treatment modalities for patients with locally advanced CaP.
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Affiliation(s)
- Arkadiusz Gzil
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland.
| | - Damian Jaworski
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Paulina Antosik
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Izabela Zarębska
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Justyna Durślewicz
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Joanna Dominiak
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Anna Kasperska
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Izabela Neska-Długosz
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Dariusz Grzanka
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland
| | - Łukasz Szylberg
- Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland; Department of Pathomorphology, Military Clinical Hospital, Bydgoszcz, Poland; Department of Tumor Pathology and Pathomorphology, Oncology Center, Prof., Franciszek Łukaszczyk Memorial Hospital, Bydgoszcz, Poland
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Beebe-Dimmer JL, Zuhlke KA, Johnson AM, Liesman D, Cooney KA. Rare germline mutations in African American men diagnosed with early-onset prostate cancer. Prostate 2018; 78:321-326. [PMID: 29356034 PMCID: PMC6912854 DOI: 10.1002/pros.23464] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 11/03/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND African Americans have both a higher incidence of prostate cancer and greater disease-specific mortality compared with non-Hispanic whites. Historically, the investigation of the contribution of rare genetic variants to prostate cancer in African American men has been hampered by low participation in large genetic studies, particularly those focused on early-onset and familial disease. METHODS We sequenced 160 genes purported to be involved in carcinogenic pathways in germline DNA samples collected from 96 African American men diagnosed with early-onset prostate cancer (≤55 years at diagnosis). REVEL software was used to determine the pathogenic potential of observed missense variants. RESULTS We observed three protein-truncating mutations, one in BRCA2 and two in BRIP1 in three African American men diagnosed with early-onset prostate cancer. Furthermore, we observed five rare, mostly private, missense variants among four genes (BRCA1, BRCA2, PMS2, and ATM) that were predicted to be deleterious and hence likely pathogenic in our patient sample. CONCLUSIONS Protein-truncating mutations in BRCA2 and BRIP1 were discovered in African American men diagnosed with early-onset prostate cancer. Further study is necessary to determine the role of rare, missense variants to prostate cancer incidence, and progression in this group of high-risk men.
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Affiliation(s)
- Jennifer L Beebe-Dimmer
- Population Studies and Disparities Research Program, Karmanos Cancer Institute, Detroit, Michigan, 48201
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan, 48201
| | - Kimberly A Zuhlke
- University of Michigan Comprehensive Cancer Center, Ann Arbor, Michigan, 48109
| | - Anna M Johnson
- University of Michigan Comprehensive Cancer Center, Ann Arbor, Michigan, 48109
- Department of Urology, University of Michigan School of Medicine, Ann Arbor, Michigan, 48109
| | - Daniel Liesman
- University of Michigan Comprehensive Cancer Center, Ann Arbor, Michigan, 48109
- Department of Urology, University of Michigan School of Medicine, Ann Arbor, Michigan, 48109
| | - Kathleen A Cooney
- Department of Internal Medicine, Cancer Institute, University of Utah School of Medicine and the Huntsman Cancer, Salt Lake City, Utah, 84132
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