Prostate最新文献

筛选
英文 中文
L1CAM mediates neuroendocrine phenotype acquisition in prostate cancer cells. L1CAM 介导前列腺癌细胞获得神经内分泌表型。
IF 2.6 3区 医学
Prostate Pub Date : 2024-12-01 Epub Date: 2024-08-18 DOI: 10.1002/pros.24782
Chia-Ling Hsieh, Anh Duy Do, Chia-Yen Hsueh, Mafewu Olga Raboshakga, Tran Ngoc Thanh, Tran Tien Tai, Hsing-Jien Kung, Shian-Ying Sung
{"title":"L1CAM mediates neuroendocrine phenotype acquisition in prostate cancer cells.","authors":"Chia-Ling Hsieh, Anh Duy Do, Chia-Yen Hsueh, Mafewu Olga Raboshakga, Tran Ngoc Thanh, Tran Tien Tai, Hsing-Jien Kung, Shian-Ying Sung","doi":"10.1002/pros.24782","DOIUrl":"10.1002/pros.24782","url":null,"abstract":"<p><strong>Background: </strong>A specific type of prostate cancer (PC) that exhibits neuroendocrine (NE) differentiation is known as NEPC. NEPC has little to no response to androgen deprivation therapy and is associated with the development of metastatic castration-resistant PC (CRPC), which has an extremely poor prognosis. Our understanding of genetic drivers and activated pathways in NEPC is limited, which hinders precision medicine approaches. L1 cell adhesion molecule (L1CAM) is known to play an oncogenic role in metastatic cancers, including CRPC. However, the impact of L1CAM on NEPC progression remains elusive.</p><p><strong>Methods: </strong>L1CAM expression level was investigated using public gene expression databases of PC cohorts and patient-derived xenograft models. L1CAM knockdown was performed in different PC cells to study in vitro cell functions. A subline of CRPC cell line CWR22Rv1 was established after long-term exposure to abiraterone to induce NE differentiation. The androgen receptor-negative cell line PC3 was cultured under the tumor sphere-forming condition to enrich cancer stemness features. Several oxidative stress inducers were tested on PC cells to observe L1CAM-mediated gene expression and cell death.</p><p><strong>Results: </strong>L1CAM expression was remarkably high in NEPC compared to CRPC or adenocarcinoma tumors. L1CAM was also correlated with NE marker expressions and associated with the adenocarcinoma-to-NEPC progression in gene expression databases and CRPC cells with NE differentiation. L1CAM also promoted cancer stemness and NE phenotypes in PC3 cells under cancer stemness enrichment. L1CAM was also identified as a reactive oxygen species-induced gene, by which L1CAM counteracted CRPC cell death triggered by ionizing radiation.</p><p><strong>Conclusions: </strong>Our results unveiled a new role of L1CAM in the acquisition of the NE phenotype in PC, contributing to the NE differentiation-related therapeutic resistance of CRPC.</p>","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1434-1447"},"PeriodicalIF":2.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141996956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modern predictors and management of incidental prostate cancer at holmium enucleation of prostate. 前列腺钬激光切除术中偶发前列腺癌的现代预测和处理方法。
IF 2.6 3区 医学
Prostate Pub Date : 2024-12-01 Epub Date: 2024-08-18 DOI: 10.1002/pros.24781
Eric V Li, Matthew S Lee, Jenny Guo, Nicholas Dean, Sai Kumar, Xinlei Mi, Ruoji Zhou, Clayton Neill, Ximing Yang, Ashley E Ross, Amy E Krambeck
{"title":"Modern predictors and management of incidental prostate cancer at holmium enucleation of prostate.","authors":"Eric V Li, Matthew S Lee, Jenny Guo, Nicholas Dean, Sai Kumar, Xinlei Mi, Ruoji Zhou, Clayton Neill, Ximing Yang, Ashley E Ross, Amy E Krambeck","doi":"10.1002/pros.24781","DOIUrl":"10.1002/pros.24781","url":null,"abstract":"<p><strong>Background: </strong>To evaluate contemporary preoperative risk factors and subsequent postoperative management of incidental prostate cancer (iPCa) and incidental clinically significant prostate cancer (icsPCa, Grade Group [GG] ≥ 2 PCa).</p><p><strong>Methods: </strong>A retrospective cohort of 811 men undergoing Holmium enucleation of the prostate (HoLEP) (January 2021-July 2022) were identified. Advanced preoperative testing was defined as prostate health index (PHI), prostate MRI, and/or negative preoperative biopsy. Descriptive statistics (Whitney-Mann U test, Chi-squared test) and multivariable logistic regression were performed.</p><p><strong>Results: </strong>iPCa and icsPCa detection rates were 12.8% (104/811) and 4.4% (36/811), respectively. Advanced preoperative testing (406/811, 50%) was associated with younger age and higher (prostate specific antigen) PSA, prostate volume, and PSA density. On multivariable analysis, PHI ≥ 55 was associated with iPCa (OR 6.91, 95% CI 1.85-26.3, p = 0.004), and % free PSA (%fPSA) was associated with icsPCa (OR 0.83, 95% CI 0.67, 0.94, p = 0.01). GG1 disease comprised the majority of iPCa (65%, 68/104) with median 1% involvement. iPCa patients were followed with active surveillance (median follow up 9.3 months), with higher risk patients receiving prostate MRI and confirmatory biopsy. Three patients proceeded to radical prostatectomy or radiation.</p><p><strong>Conclusions: </strong>In the era of MRI and advanced biomarkers, the majority of iPCa following HoLEP is low volume GG1 suitable for active surveillance. A tentative follow-up strategy is proposed. Patients with PHI ≥ 55 or low %fPSA, even with negative prostate MRI, can consider preoperative prostate biopsy before HoLEP.</p>","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1427-1433"},"PeriodicalIF":2.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141996957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Targeting proliferating cell nuclear antigen enhances ionizing radiation-induced cytotoxicity in prostate cancer cells. 靶向增殖细胞核抗原可增强电离辐射诱导的前列腺癌细胞毒性。
IF 2.6 3区 医学
Prostate Pub Date : 2024-12-01 Epub Date: 2024-09-01 DOI: 10.1002/pros.24786
Shan Lu, Michael Lamba, Jiang Wang, Zhongyun Dong
{"title":"Targeting proliferating cell nuclear antigen enhances ionizing radiation-induced cytotoxicity in prostate cancer cells.","authors":"Shan Lu, Michael Lamba, Jiang Wang, Zhongyun Dong","doi":"10.1002/pros.24786","DOIUrl":"10.1002/pros.24786","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;Proliferating cell nuclear antigen (PCNA) is essential for DNA replication and repair, cell growth, and survival. PCNA also enhances androgen receptor (AR) signaling in prostate cancer (PC) cells. We identified a PCNA interaction protein (PIP) box at the N-terminal domain of AR and developed a small peptide PCNA inhibitor R9-AR-PIP containing AR PIP-box. We also identified a series of small molecule PCNA inhibitors (PCNA-Is) that bind directly to PCNA and interrupt PCNA functions. The present study investigated the effects of the PCNA inhibitors on the sensitivity of PC cells to X-ray radiation.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;The effects of targeting PCNA on radio sensitivity of PC cells were investigated in four lines of castration-resistant PC (CRPC) cells with different AR expression statuses. The cells were treated with the PCNA inhibitors and X-ray radiation alone or in combination. The effects of the treatment on expression of AR target genes, DNA damage response, DNA damage, homologous recombination repair (HRR), and cytotoxicity were evaluated.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;We found that the androgen response element (ARE) occupancy of the DNA damage response gene PARP1 by AR is significantly attenuated by PCNA-I1S or R9-AR-PIP combined with X-ray radiation, while X-ray radiation alone does not enhance the ARE occupancy. PCNA-I1S or R9-AR-PIP alone significantly inhibits occupancy of the AR-occupied regions (AROR) in PRKDC and XRCC2 genes. R9-AR-PIP and PCNA-I1S inhibit expression of AR-Vs target gene cyclin A2 and show the additive effects with radiation in AR-positive CRPC cells. Targeting PCNA by PCNA-I1S and R9-AR-PIP downregulates expression of DNA damage response genes EXO1, Rad54L, Rad51, and/or PARP1 and shows the additive effects with radiation as compared with their respective controls in AR-positive CRPC LNCaP-AI, 22Rv1, and R1-D567 cells, but not in AR-negative PC-3 cells. R9-AR-PIP and PCNA-I1S elevate the levels of phospho-DNA-PKcs(S&lt;sup&gt;2056&lt;/sup&gt;) and γH2AX, indicating DNA damage in response to radiation in AR-positive cells. The HRR is significantly attenuated by PCNA inhibitors PCNA-I1S, R9-AR-PIP, and T2AA in all four CRPC cells examined, and inhibited by Enzalutamide (Enz) only in 22RV1 cells. The cytotoxicity induced by X-ray radiation in androgen-dependent LNCaP cells is enhanced by Enz and a lower concentration of R9-AR-PIP in the colony formation assay. R9-AR-PIP at higher concentration reduces the colony formation and has an additive effect with X-ray radiation in all AR expressing cells, regardless of AR-FL and AR-Vs, but does not significantly alter the colony formation in AR-negative PC-3 cells. PCNA-I1S attenuates colony formation and has an additive effect with ionizing radiation in all four CRPC cells, regardless of AR expression status.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;These data provide a strong rationale for the therapy studies using PCNA-I1S or R9-AR-PIP in combinatio","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1456-1467"},"PeriodicalIF":2.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142114832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diagnostic potential of SDHB mRNA contained in serum extracellular vesicles among patients with prostate cancer. 前列腺癌患者血清细胞外囊泡中所含 SDHB mRNA 的诊断潜力。
IF 2.6 3区 医学
Prostate Pub Date : 2024-12-01 Epub Date: 2024-09-15 DOI: 10.1002/pros.24792
Taku Kato, Eiji Sugihara, Yuko Hata, Kyojiro Kawakami, Yasunori Fujita, Kosuke Mizutani, Tatsuya Ando, Yasuhiro Sakai, Kouhei Sakurai, Shohei Toyota, Hidetoshi Ehara, Masafumi Ito, Hiroyasu Ito
{"title":"Diagnostic potential of SDHB mRNA contained in serum extracellular vesicles among patients with prostate cancer.","authors":"Taku Kato, Eiji Sugihara, Yuko Hata, Kyojiro Kawakami, Yasunori Fujita, Kosuke Mizutani, Tatsuya Ando, Yasuhiro Sakai, Kouhei Sakurai, Shohei Toyota, Hidetoshi Ehara, Masafumi Ito, Hiroyasu Ito","doi":"10.1002/pros.24792","DOIUrl":"10.1002/pros.24792","url":null,"abstract":"<p><strong>Background: </strong>Androgen receptor signaling inhibitors(ARSIs) have been used to treat patients with metastatic prostate cancer (PC) and castration-resistant prostate cancer (CRPC). In this study, we aimed to identify novel serum extracellular vesicle (EV)-based biomarkers to diagnose ARSI-resistance and therapeutic targets for ARSI-resistant CRPC.</p><p><strong>Methods: </strong>Total RNA contained in serum EVs from 5 cases of CRPC before ARSI treatment and after acquiring ARSI-resistance was subjected to RNA-sequencing. The expression changes of selected RNAs contained in EVs were confirmed in 48 cases of benign prostatic hyperplasia (BPH) and 107 PC using reverse transcription-quantitative PCR (RT-qPCR) and compared with tissue RNA expression using public datasets.</p><p><strong>Results: </strong>RNA-sequencing revealed that mitochondrial oxidative phosphorylation (OXPHOS)-related genes were increased in EVs after acquiring ARSI-resistance. Among them, RT-qPCR and datasets analysis demonstrated that SDHB mRNA was upregulated after acquiring ARSI-resistance in EVs and ARSI-exposed PC tissue compared to ARSI-naïve EVs and tissue, respectively. SDHB mRNA levels both in EVs and tissue were increased in localized PC compared with BPH and decreased in advanced PC. Tissue expression of SDHB mRNA was significantly correlated with those of other OXPHOS-related genes. SDHB mRNA in EVs (EV-SDHB) was elevated among 3 out of 7 ARSI-treating patients with stable PSA levels who later progressed to ARSI-resistant CRPC.</p><p><strong>Conclusions: </strong>The levels of OXPHOS-related mRNAs in EVs correlated with those in PC tissue, among which SDHB mRNA was found to be a novel biomarker to diagnose ARSI-resistance. EV-SDHB may be useful for early diagnosis of ARSI-resistance.</p>","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1515-1524"},"PeriodicalIF":2.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142301127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of online teaching modules for PSMA PET interpretation. 评估 PSMA PET 解读在线教学模块。
IF 2.6 3区 医学
Prostate Pub Date : 2024-12-01 Epub Date: 2024-09-09 DOI: 10.1002/pros.24780
Jorge D Oldan, Steven P Rowe, Jennifer A Schroeder
{"title":"Evaluation of online teaching modules for PSMA PET interpretation.","authors":"Jorge D Oldan, Steven P Rowe, Jennifer A Schroeder","doi":"10.1002/pros.24780","DOIUrl":"10.1002/pros.24780","url":null,"abstract":"<p><strong>Purpose: </strong>The proliferation of US FDA-approved prostate-specific membrane antigen (PSMA)-targeted positron emission tomography (PET) imaging agents as a means to evaluate prostate cancer patients, and the expanding knowledge of interpretive pitfalls, has led to the generation of multiple online training modules geared toward the reading of each individual agent, each taking different approaches to criteria for interpretation, which may contribute to the variability of reporting in clinical practice.</p><p><strong>Materials and methods: </strong>The websites of the marketers of each FDA-approved agent [<sup>68</sup>Ga-PSMA-11 (Illuccix; Telix Pharmaceuticals), <sup>68</sup>Ga-PSMA-11 (Locametz; Novartis Pharmaceuticals), <sup>18</sup>F-rh-PSMA-7.3 (Posluma; Blue Earth Diagnostics)], and the website of the Society of Nuclear Medicine and Molecular Imaging [<sup>18</sup>F-DCFPyL (Pylarify)] were examined. All information pertaining to reader training, including videos, PDFs, and PowerPoint presentations, were reviewed.</p><p><strong>Results: </strong>Videos from each module covered interpretive approach and pitfalls and ranged in length from a total of 20 min up to 315 min. Each module provided a different approach to PSMA PET scan findings, and on a different number and breadth of interpretive tips and pitfalls (a total of approximately 12-30 in all).</p><p><strong>Conclusions: </strong>Each of the four PSMA PET reader training modules covered important interpretive pitfalls. The lengths of the video portions of each module varied considerably, suggesting variable investments in time necessary to complete each module. The differences in the modules could contribute to inconsistency among readers depending on which module(s) they may have completed and which radiotracer(s) they are using.</p>","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1419-1426"},"PeriodicalIF":2.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142156661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prognostic value of circulating tumor cells in oligorecurrent hormone-sensitive prostate cancer patients undergoing stereotactic body radiation therapy. 接受立体定向体放射治疗的少电流激素敏感性前列腺癌患者循环肿瘤细胞的预后价值。
IF 2.6 3区 医学
Prostate Pub Date : 2024-12-01 Epub Date: 2024-09-06 DOI: 10.1002/pros.24787
Fabio Matrone, Fabio Del Ben, Marcella Montico, Elena Muraro, Agostino Steffan, Roberto Bortolus, Lucia Fratino, Alessandra Donofrio, Veronica Paduano, Martina Zanchetta, Matteo Turetta, Giulia Brisotto
{"title":"Prognostic value of circulating tumor cells in oligorecurrent hormone-sensitive prostate cancer patients undergoing stereotactic body radiation therapy.","authors":"Fabio Matrone, Fabio Del Ben, Marcella Montico, Elena Muraro, Agostino Steffan, Roberto Bortolus, Lucia Fratino, Alessandra Donofrio, Veronica Paduano, Martina Zanchetta, Matteo Turetta, Giulia Brisotto","doi":"10.1002/pros.24787","DOIUrl":"10.1002/pros.24787","url":null,"abstract":"<p><strong>Background: </strong>Stereotactic body radiation therapy (SBRT) is an effective metastasis-directed therapy for managing oligometastatic prostate cancer patients. However, it lacks reliable biomarkers for risk stratification. Circulating Tumor Cells (CTC) show promise as minimally invasive prognostic indicators. This study evaluates the prognostic value of CTC in oligorecurrent hormone-sensitive prostate cancer (orHSPC).</p><p><strong>Methods: </strong>orHSPC patients with 1-3 nodal and/or bone metastases undergoing SBRT were enrolled (N = 35), with a median follow-up time of 42.1 months. CTC levels were measured at baseline (T0), 1 month (T1), and 3 months (T2) post-SBRT using a novel metabolism-based assay. These levels were correlated with clinical outcomes through Cox-regression and Kaplan-Meier analyses.</p><p><strong>Results: </strong>Median CTC counts were 5 at T0, 8 at T1, and 5 at T2 with no significant variation over time. Multivariate analysis identified high (≥5/7.5 mL) T0 CTC counts (HR 2.9, 95% CI 1.3-6.5, p = 0.01, median DPFS 29.7 vs. 14.0 months) and having more than one metastasis (HR 3.9, 95% CI 1.8-8.6, p < 0.005, median DPFS 34.1 vs. 10.7 months) as independent predictors of distant progression-free survival (DPFS). CTC assessment successfully stratified patients with a single metastasis (HR 3.4, 95% CI 1.1-10.2, p = 0.03, median DPFS 42.1 vs. 16.7 months), but not those with more than one metastasis. Additionally, a combined score based on CTC levels and the number of metastases effectively stratified patients.</p><p><strong>Conclusion: </strong>The study demonstrates that hypermetabolic CTC could enhance risk stratification in orHSPC patients undergoing SBRT, particularly in patients with limited metastatic burden, potentially identifying patients with indolent disease who are suitable for tailored SBRT interventions.</p>","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1468-1478"},"PeriodicalIF":2.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142141801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reply to Letter to the Editor on "Impact of proton pump inhibitors on the efficacy of androgen receptor signaling inhibitors in metastatic castration-resistant prostate cancer patients". 回复 "质子泵抑制剂对转移性耐阉割前列腺癌患者雄激素受体信号转导抑制剂疗效的影响 "的致编辑信。
IF 2.6 3区 医学
Prostate Pub Date : 2024-12-01 Epub Date: 2024-08-21 DOI: 10.1002/pros.24784
Tokiyoshi Tanegashima, Masaki Shiota, Masatoshi Eto
{"title":"Reply to Letter to the Editor on \"Impact of proton pump inhibitors on the efficacy of androgen receptor signaling inhibitors in metastatic castration-resistant prostate cancer patients\".","authors":"Tokiyoshi Tanegashima, Masaki Shiota, Masatoshi Eto","doi":"10.1002/pros.24784","DOIUrl":"10.1002/pros.24784","url":null,"abstract":"","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1538-1539"},"PeriodicalIF":2.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142019510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluating RB1 and p53 as diagnostic markers in treatment-related neuroendocrine prostate cancer through immunohistochemistry and genomic analysis of RB1 and TP53. 通过对 RB1 和 TP53 进行免疫组化和基因组分析,评估将 RB1 和 p53 作为与治疗相关的神经内分泌前列腺癌的诊断标记物。
IF 2.6 3区 医学
Prostate Pub Date : 2024-12-01 Epub Date: 2024-09-15 DOI: 10.1002/pros.24791
Hideto Ueki, Naoe Jimbo, Tomoaki Terakawa, Takuto Hara, Taisuke Tobe, Junichiro Hirata, Naoto Wakita, Yasuyoshi Okamura, Kotaro Suzuki, Yukari Bando, Koji Chiba, Jun Teishima, Yuzo Nakano, Hideaki Miyake
{"title":"Evaluating RB1 and p53 as diagnostic markers in treatment-related neuroendocrine prostate cancer through immunohistochemistry and genomic analysis of RB1 and TP53.","authors":"Hideto Ueki, Naoe Jimbo, Tomoaki Terakawa, Takuto Hara, Taisuke Tobe, Junichiro Hirata, Naoto Wakita, Yasuyoshi Okamura, Kotaro Suzuki, Yukari Bando, Koji Chiba, Jun Teishima, Yuzo Nakano, Hideaki Miyake","doi":"10.1002/pros.24791","DOIUrl":"10.1002/pros.24791","url":null,"abstract":"<p><strong>Background: </strong>The diagnosis of treatment-related neuroendocrine prostate cancer (t-NEPC) often involves a pathological assessment and immunohistochemistry (IHC) for neuroendocrine markers. Genomic alterations in RB1 and TP53 are frequently observed in NEPC and are believed to play a crucial role in the transformation of adenocarcinoma to NEPC. In this study, we examined the clinicopathologic, immunohistochemical, and genetic features of patients with t-NEPC to better understand their prognosis and diagnostic utility.</p><p><strong>Methods: </strong>This retrospective study reviewed the records of patients diagnosed with t-NEPC at Kobe University Hospital between October 2018 and December 2022. Clinical data, including age, serum neuroendocrine marker levels, and treatment history, were collected. IHC was performed for conventional neuroendocrine markers (synaptophysin, chromogranin A, and CD56) and RB1 and p53 expression. Next-generation sequencing (NGS) was conducted using FoundationOne® CDx to identify mutations in RB1 and TP53.</p><p><strong>Results: </strong>This study included 20 patients with t-NEPC. The median time from ADT initiation to development was 42.8 months. IHC revealed RB1 loss in 75% of cases and p53 abnormalities in 75% of cases. NGS identified RB1 mutations in 55% and TP53 mutations in 75% of cases. The concordance between NGS and IHC results was high, with 70% (14/20) agreement for RB1/RB1 and 80% (16/20) for p53/TP53. The immunostaining and genomic analysis of RB1/RB1 and p53/TP53 showed abnormal findings for the four negative cases for conventional neuroendocrine markers.</p><p><strong>Conclusions: </strong>This study indicated high concordance between IHC and NGS findings for RB1/RB1 and p53/TP53 in t-NEPC. We provide a comprehensive benchmark of NGS performance compared with IHC, and these findings may help increase the diagnostic sensitivity of t-NEPC.</p>","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1506-1514"},"PeriodicalIF":2.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142301129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Validation of candidate protein biomarkers previously identified by genetic instruments for prostate cancer risk: A prospective cohort analysis of directly measured protein levels in the ARIC study. 验证先前通过基因仪器确定的前列腺癌风险候选蛋白质生物标志物:对 ARIC 研究中直接测量的蛋白质水平进行前瞻性队列分析。
IF 2.6 3区 医学
Prostate Pub Date : 2024-11-01 Epub Date: 2024-08-15 DOI: 10.1002/pros.24774
Tanxin Liu, Corinne E Joshu, Jiayun Lu, Anna Prizment, Nilanjan Chatterjee, Lang Wu, Elizabeth A Platz
{"title":"Validation of candidate protein biomarkers previously identified by genetic instruments for prostate cancer risk: A prospective cohort analysis of directly measured protein levels in the ARIC study.","authors":"Tanxin Liu, Corinne E Joshu, Jiayun Lu, Anna Prizment, Nilanjan Chatterjee, Lang Wu, Elizabeth A Platz","doi":"10.1002/pros.24774","DOIUrl":"10.1002/pros.24774","url":null,"abstract":"<p><strong>Background: </strong>Multiple novel protein biomarkers have been shown to be associated with prostate cancer risk using genetic instruments. This study aimed to externally validate the associations of 30 genetically predicted candidate proteins with prostate cancer risk using aptamer-based levels in US Black and White men in the Atherosclerosis Risk in Communities (ARIC) study. Plasma protein levels were previously measured by SomaScan® using the blood collected in 1990-1992.</p><p><strong>Methods: </strong>Among 4864 eligible participants, we ascertained 667 first primary prostate cancer cases through 2015. Hazard ratios (HRs) of prostate cancer and 95% confidence intervals (CIs) were estimated using Cox proportional hazards regression for tertiles of each protein. We adjusted for age, race, and other risk factors.</p><p><strong>Results: </strong>Of the 30 proteins and considering a nominal p trend < 0.05, two were positively associated with prostate cancer risk-RF1ML (tertile 3 vs. 1: HR = 1.23; 95% CI 1.02-1.48; p trend = 0.037) and TPST1 (1.28, 95% CI 1.06-1.55; p trend = 0.0087); two were inversely associated-ATF6A (HR = 0.80, 95% CI 0.65-0.98; p trend = 0.028) and SPINT2 (HR = 0.74, 95% CI 0.61-0.90; p trend = 0.0025). One protein, KDEL2, which was nonlinearly associated (test-for-linearity: p < 0.01) showed a statistically significant lower risk in the second tertile (HR = 0.79, 95% CI 0.65-0.95). Of these five, four proteins-ATF6A, KDEL2, RF1ML, and TPST1-were consistent in the direction of association with the discovery studies.</p><p><strong>Conclusion: </strong>This study validated some pre-diagnostic protein biomarkers of the risk of prostate cancer.</p>","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1355-1365"},"PeriodicalIF":2.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11576251/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141989574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Response to the Letter to the Editor. 回应致编辑的信。
IF 2.6 3区 医学
Prostate Pub Date : 2024-11-01 Epub Date: 2024-08-21 DOI: 10.1002/pros.24783
Nawar Touma, Frederic Pouliot
{"title":"Response to the Letter to the Editor.","authors":"Nawar Touma, Frederic Pouliot","doi":"10.1002/pros.24783","DOIUrl":"10.1002/pros.24783","url":null,"abstract":"","PeriodicalId":54544,"journal":{"name":"Prostate","volume":" ","pages":"1416"},"PeriodicalIF":2.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142019511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信