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Kurokawa K, Yamada Y, Sakamoto S, Horikoshi T, Sato K, Nanba S, Kubota Y, Kanesaka M, Fujimoto A, Takeuchi N, Shibata H, Sazuka T, Imamura Y, Tsuzuki T, Uno T, Ichikawa T. Implications of unconventional histological subtypes on magnetic resonance imaging and oncological outcomes in patients who have undergone radical prostatectomy. Sci Rep 2024; 14:14868. [PMID: 38937563 PMCID: PMC11211384 DOI: 10.1038/s41598-024-65681-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024] Open
Abstract
The prognostic significance of unconventional histology (UH) subtypes including intraductal carcinoma of the prostate (IDC-P), ductal adenocarcinoma, and cribriform pattern has been investigated for prostate cancer (PCa). However, little is known about magnetic resonance imaging (MRI) features and the oncological impact of tumor localization in localized PCa with UH. Clinical data of 211 patients with acinar adenocarcinoma (conventional histology [CH]) and 82 patients with UH who underwent robotic-assisted radical prostatectomy (RARP) were reviewed. Patients with UH are more likely to be older and have higher Gleason grade group, higher Prostate Imaging-Reporting and Data System (PI-RADS) v2.1 score, and larger tumor volume (TV) than those with CH. Multivariate analysis identified the presence of UH as an independent prognostic factor for progression-free survival (PFS) (hazard ration (HR) 2.41, 95% confidence interval (CI) 0.22-0.79, P = 0.0073). No significant difference in PFS was seen regarding tumor localization (transition zone [TZ] or peripheral zone [PZ]) in patients with UH (P = 0.8949), whereas PZ cancer showed shorter PFS in patients with CH (P = 0.0174). PCa with UH was associated with higher progression than PCa with CH among resection margin (RM)-negative cases (P < 0.0001). Further, increased PI-RADS v2.1 score did not correlate with larger TV in UH (P = 0.991), whereas a significant difference in TV was observed in CH (P < 0.0001). The prognostic significance of UH tumor was independent of tumor localization, and shorter PFS was observed even in RM-negative cases, indicating an aggressive subtype with micro-metastatic potential. Furthermore, UH tumors are more likely to harbor a large TV despite PI-RADS v2.1 score ≤ 3. These findings will help optimal perioperative management for PCa with UH.
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Affiliation(s)
- Koichiro Kurokawa
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
| | - Yasutaka Yamada
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
| | - Shinichi Sakamoto
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan.
| | - Takuro Horikoshi
- Department of Radiology, Chiba University Graduate School of Medicine, Chiba, 2608677, Japan
| | - Kodai Sato
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
| | - Sakie Nanba
- Department of Radiology, Chiba University Graduate School of Medicine, Chiba, 2608677, Japan
| | - Yoshihiro Kubota
- Department of Radiology, Chiba University Graduate School of Medicine, Chiba, 2608677, Japan
| | - Manato Kanesaka
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
| | - Ayumi Fujimoto
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
| | - Nobuyoshi Takeuchi
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
| | - Hiroki Shibata
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
| | - Tomokazu Sazuka
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
| | - Yusuke Imamura
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
| | - Toyonori Tsuzuki
- Department of Surgical Pathology, Aichi Medical University Hospital, Aichi, 4801195, Japan
| | - Takashi Uno
- Department of Radiology, Chiba University Graduate School of Medicine, Chiba, 2608677, Japan
| | - Tomohiko Ichikawa
- Department of Urology, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-Ku, Chiba-City, Chiba, 260-8670, Japan
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Chen J, Zhang L, Luo Y, Tan C, Hu H, Jiang Y, Xi N, Zeng Q, Peng H. Development of a ferroptosis-based molecular markers for predicting RFS in prostate cancer patients. Sci Rep 2023; 13:22804. [PMID: 38129557 PMCID: PMC10739732 DOI: 10.1038/s41598-023-50205-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/16/2023] [Indexed: 12/23/2023] Open
Abstract
The goal of this study was to develop a ferroptosis-based molecular signature that can predict recurrence-free survival (RFS) in patients with prostate cancer (PCa). In this study, we obtained ferroptosis-related genes (FRGs) in FerrDb database and clinical transcriptome data in TCGA database and GEO database. Consensus cluster analysis was used to identify three molecular markers of ferroptosis in PCa with differential expression of 40 FRGs, including PD-L1 expression levels. We conducted a new ferroptosis-related signature for PCa RFS using four FRGs identified through univariate and multivariate Cox regression analyses. The signature was validated in the training, testing, and validation cohorts, and it demonstrated remarkable results in the area under the time-dependent receiver operating characteristic (ROC) curve of 0.757, 0.715, and 0.732, respectively. Additionally, we observed that younger patients, those with stage T III and stage T IV, stage N0, cluster 1, and cluster 2 PCa were more accurately predicted by the signature as independent predictors of RFS. DU-145 and RWPE-1 cells were successfully analyzed by qRT-PCR and Western blot for ASNS, GPT2, RRM2, and NFE2L2. In summary, we developed a novel ferroptosis-based signature for RFS in PC, utilizing four FRGs identified through univariate and multivariate Cox regression analyses. This signature was rigorously validated across training, testing, and validation cohorts, demonstrating exceptional performance as evidenced by its ROC curves. Notably, our findings indicate that this signature is particularly effective as an independent predictor of RFS in younger patients or those with stage T III and T IV, stage N0, and in clusters 1 and 2. Finally, we confirmed the expression of these four FRGs in DU-145 and RWPE-1 cell lines.
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Affiliation(s)
- Jinquan Chen
- Department of Ophthalmology, The Tongnan District People's Hospital, Chongqing, China
| | - Longbin Zhang
- Department of Ophthalmology, The Tongnan District People's Hospital, Chongqing, China
| | - Yiling Luo
- Department of Ophthalmology, The Tongnan District People's Hospital, Chongqing, China
| | - Chao Tan
- Department of Ophthalmology, The Tongnan District People's Hospital, Chongqing, China
| | - Huang Hu
- Department of Ophthalmology, The Tongnan District People's Hospital, Chongqing, China
| | - Yuling Jiang
- Department of Ophthalmology, The Tongnan District People's Hospital, Chongqing, China
| | - Na Xi
- Department of Ophthalmology, The Tongnan District People's Hospital, Chongqing, China
| | - Qinghai Zeng
- Department of Ophthalmology, The Tongnan District People's Hospital, Chongqing, China
| | - H Peng
- Department of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Risk factors for lymphorrhea and lymphocele after radical prostatectomy: a retrospective case-control study. World J Urol 2023; 41:1033-1039. [PMID: 36792813 DOI: 10.1007/s00345-023-04321-2] [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: 08/27/2022] [Accepted: 01/27/2023] [Indexed: 02/17/2023] Open
Abstract
PURPOSE To investigate the risk factors for postoperative lymphorrhea or/and lymphocele (PLL) in patients undergoing radical prostatectomy (RP). MATERIALS AND METHODS The clinical data of 606 patients were retrospectively collected. The receiver operating characteristic (ROC) curve was utilized to identify the optimal cutoff value. Multivariable logistic regression analysis was used to screen the independent predictors of PLL. RESULTS Univariate analysis showed that nine factors differed between the PLL and non-PLL group. Multivariable logistic regression analysis showed that low preoperative fibrinogen level, extraperitoneal surgery, robot-assisted laparoscopic radical prostatectomy (RALRP), and hypoalbuminemia were risk factors and the use of fibrin glue was a protective factor. Correlation analysis showed that the scope of LN dissection (LND) and number of lymph nodes (LNs) dissected were positively correlated with PLL in the extraperitoneal approach, but were not significantly correlated with PLL in the transperitoneal approach. The use of fibrin glue was negatively associated with PLL in the overall procedure and the extraperitoneal approach, but not significantly so in the transperitoneal approach. Comparison of LNs clearance between the two surgical approaches revealed that the extent of LND and number of LNs dissected in the extraperitoneal approach were less than in the transperitoneal approach. CONCLUSION During RALRP, more attention should be paid to fully clotting the broken end of lymphatic vessels. The use of fibrin glue could reduce the probability of PLL. The extent of LND or number of LNs dissected were positively correlated with PLL in the extraperitoneal approach.
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Ren L, Yang X, Wang W, Lin H, Huang G, Liu Z, Pan J, Mao X. A cuproptosis-related LncRNA signature: Integrated analysis associated with biochemical recurrence and immune landscape in prostate cancer. Front Genet 2023; 14:1096783. [PMID: 36911392 PMCID: PMC9999016 DOI: 10.3389/fgene.2023.1096783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 02/10/2023] [Indexed: 03/14/2023] Open
Abstract
Background: As a new form of regulated cell death, cuproptosis differs profoundly from apoptosis, ferroptosis, pyroptosis, and necroptosis. The correlation between cuproptosis and long non-coding RNAs (lncRNAs) has been increasingly studied recently. In this study, a novel cuproptosis-related lncRNA prognostic signature was developed to investigate biochemical recurrence (BCR) and tumor immune landscape in prostate cancer (PCa). Methods and Materials: The transcriptome data and clinicopathologic information of PCa patients were downloaded from The Cancer Genome Atlas (TCGA). Pearson's correlation analysis was applied to identify lncRNAs associated with cuproptosis. Based on Cox regression analysis and the least absolute shrinkage and selection operator (LASSO) regression analysis, we developed a cuproptosis-related lncRNA prognostic model (risk score) to predict the BCR of PCa patients. Additionally, we also constructed a nomogram with the risk score and clinicopathologic features. The biological function, tumor mutation burden (TMB), immune cell infiltration, expression levels of immune checkpoint genes, and anti-cancer drug sensitivity were investigated. Results: We constructed and validated the cuproptosis-related lncRNA signature prognostic model (risk score) by six crlncRNAs. All patients were divided into the low- and high-risk groups based on the median risk score. The Kaplan-Meier (KM) survival analysis revealed that the high-risk group had shorter BCR-free survival (BCRFS). The risk score has been proven to be an independent prognostic factor of BCR in PCa patients. In addition, a nomogram of risk scores and clinicopathologic features was established and demonstrated an excellent predictive capability of BCR. The ROC curves further validated that this nomogram had higher accuracy of predicting the BCR compared to other clinicopathologic features. We also found that the high-risk group had higher TMB levels and more infiltrated immune cells. Furthermore, patients with high TMB in the high-risk group were inclined to have the shortest BCRFS. Finally, patients in the high-risk group were more susceptible to docetaxel, gefitinib, methotrexate, paclitaxel, and vinblastine. Conclusion: The novel crlncRNA signature prognostic model shows a greatly prognostic prediction value of BCR for PCa patients, extends our thought on the association of cuproptosis and PCa, and provides novel insights into individual-based treatment strategies for PCa.
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Affiliation(s)
- Lei Ren
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Xu Yang
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Weifeng Wang
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Hansen Lin
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Guankai Huang
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Zixiong Liu
- Department of Urology, The Seventh Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, China
| | - Jincheng Pan
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Xiaopeng Mao
- Department of Urology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
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Małkiewicz B, Knura M, Łątkowska M, Kobylański M, Nagi K, Janczak D, Chorbińska J, Krajewski W, Karwacki J, Szydełko T. Patients with Positive Lymph Nodes after Radical Prostatectomy and Pelvic Lymphadenectomy—Do We Know the Proper Way of Management? Cancers (Basel) 2022; 14:cancers14092326. [PMID: 35565455 PMCID: PMC9104304 DOI: 10.3390/cancers14092326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/03/2022] [Accepted: 05/06/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary Prostate cancer (PCa) is the second most frequent malignancy in the male population worldwide. Men with a nodal invasion established after radical prostatectomy with lymph node dissection are a heterogeneous group of patients who require more thorough stratification and therapy individualization, which remain uncovered by current guidelines. Considering a multitude of prognostic factors and novel diagnostic techniques, classifying patients into narrower and more specified risk groups should be a vital part of lymph node positive PCa management in the future. Abstract Lymph node invasion in prostate cancer is a significant prognostic factor indicating worse prognosis. While it significantly affects both survival rates and recurrence, proper management remains a controversial and unsolved issue. The thorough evaluation of risk factors associated with nodal involvement, such as lymph node density or extracapsular extension, is crucial to establish the potential expansion of the disease and to substratify patients clinically. There are multiple strategies that may be employed for patients with positive lymph nodes. Nowadays, therapeutic methods are generally based on observation, radiotherapy, and androgen deprivation therapy. However, the current guidelines are incoherent in terms of the most effective management approach. Future management strategies are expected to make use of novel diagnostic tools and therapies, such as photodynamic therapy or diagnostic imaging with prostate-specific membrane antigen. Nevertheless, this heterogeneous group of men remains a great therapeutic concern, and both the clarification of the guidelines and the optimal substratification of patients are required.
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Affiliation(s)
- Bartosz Małkiewicz
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-566 Wroclaw, Poland; (M.Ł.); (M.K.); (K.N.); (D.J.); (J.C.); (W.K.); (T.S.)
- Correspondence: (B.M.); (J.K.); Tel.: +48-506-158-136 (B.M.)
| | - Miłosz Knura
- Department of Biochemistry, Faculty of Medical Sciences in Katowice, Medical University of Silesia, 40-752 Katowice, Poland;
| | - Małgorzata Łątkowska
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-566 Wroclaw, Poland; (M.Ł.); (M.K.); (K.N.); (D.J.); (J.C.); (W.K.); (T.S.)
| | - Maximilian Kobylański
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-566 Wroclaw, Poland; (M.Ł.); (M.K.); (K.N.); (D.J.); (J.C.); (W.K.); (T.S.)
| | - Krystian Nagi
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-566 Wroclaw, Poland; (M.Ł.); (M.K.); (K.N.); (D.J.); (J.C.); (W.K.); (T.S.)
| | - Dawid Janczak
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-566 Wroclaw, Poland; (M.Ł.); (M.K.); (K.N.); (D.J.); (J.C.); (W.K.); (T.S.)
| | - Joanna Chorbińska
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-566 Wroclaw, Poland; (M.Ł.); (M.K.); (K.N.); (D.J.); (J.C.); (W.K.); (T.S.)
| | - Wojciech Krajewski
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-566 Wroclaw, Poland; (M.Ł.); (M.K.); (K.N.); (D.J.); (J.C.); (W.K.); (T.S.)
| | - Jakub Karwacki
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-566 Wroclaw, Poland; (M.Ł.); (M.K.); (K.N.); (D.J.); (J.C.); (W.K.); (T.S.)
- Correspondence: (B.M.); (J.K.); Tel.: +48-506-158-136 (B.M.)
| | - Tomasz Szydełko
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-566 Wroclaw, Poland; (M.Ł.); (M.K.); (K.N.); (D.J.); (J.C.); (W.K.); (T.S.)
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Chen Z, Wang J, Lu Y, Lai C, Qu L, Zhuo Y. Ezrin expression in circulating tumor cells is a predictor of prostate cancer metastasis. Bioengineered 2022; 13:4076-4084. [PMID: 35156523 PMCID: PMC8974175 DOI: 10.1080/21655979.2021.2014710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Metastatic prostate cancer (PCa) remains incurable and fatal. Previous studies have proven that circulating tumor cells (CTCs) and Ezrin are involved in PCa progression, metastasis, diagnosis, and prognosis. Therefore, we aimed to investigate the roles of CTCs and Ezrin in PCa metastasis. The expression of Ezrin was measured by qRT–PCR and immunohistochemical staining. The migration and invasion of PCa cells were evaluated. Additionally, clinical data from PCa patients were collected to analyze the potential roles of Ezrin expression in CTCs of PCa. The results showed that Ezrin expression was significantly upregulated in PCa tissues and 22RV1 and PC-3 cell samples. The overexpression of Ezrin promoted the migratory and invasive abilities of 22RV1 and PC-3 cells. Finally, the clinical data revealed that the expression of Ezrin in CTCs of PCa patients was significantly upregulated with the metastatic degree. Furthermore, after radical prostatectomy, CTCs from Ezrin-positive PCa patients were susceptible to tumor metastasis. Therefore, these results indicated that Ezrin expression in CTCs may offer novel insights into the prognosis and management of PCa.
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Affiliation(s)
- Zheng Chen
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Jue Wang
- Department of Pathology, The FirstAffiliated Hospital of Sun Yet-Sen University, Guangzhou, China
| | - Yangbai Lu
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
- Departments of Urology, Zhongshan City People’s Hospital, Zhongshan, China
| | - Caiyong Lai
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Lijun Qu
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Yumin Zhuo
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
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Intraductal Carcinoma of the Prostate as a Cause of Prostate Cancer Metastasis: A Molecular Portrait. Cancers (Basel) 2022; 14:cancers14030820. [PMID: 35159086 PMCID: PMC8834356 DOI: 10.3390/cancers14030820] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Most men with prostate cancer will live as long as those who do not have prostate cancer. However, some men will die early of their disease due to a particular type of prostate cancer associated with recurrence and metastasis: intraductal carcinoma of the prostate. In this review, we discuss the associations between intraductal carcinoma of the prostate and metastasis, and the contemporary knowledge about the molecular alterations of intraductal carcinoma of the prostate. Abstract Intraductal carcinoma of the prostate (IDC-P) is one of the most aggressive types of prostate cancer (PCa). IDC-P is identified in approximately 20% of PCa patients and is associated with recurrence, metastasis, and PCa-specific death. The main feature of this histological variant is the colonization of benign glands by PCa cells. Although IDC-P is a well-recognized independent parameter for metastasis, mechanisms by which IDC-P cells can spread and colonize other tissues are not fully known. In this review, we discuss the molecular portraits of IDC-P determined by immunohistochemistry and genomic approaches and highlight the areas in which more research is needed.
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Ke ZB, You Q, Sun JB, Zhu JM, Li XD, Chen DN, Su L, Zheng QS, Wei Y, Xue XY, Xu N. A Novel Ferroptosis-Based Molecular Signature Associated with Biochemical Recurrence-Free Survival and Tumor Immune Microenvironment of Prostate Cancer. Front Cell Dev Biol 2022; 9:774625. [PMID: 35071228 PMCID: PMC8773967 DOI: 10.3389/fcell.2021.774625] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 12/02/2021] [Indexed: 01/13/2023] Open
Abstract
Objective: To identify ferroptosis-related molecular clusters, and to develop and validate a ferroptosis-based molecular signature for predicting biochemical recurrence-free survival (BCRFS) and tumor immune microenvironment of prostate cancer (PCa). Materials and Methods: The clinical data and transcriptome data of PCa were downloaded from TCGA and GEO database. Ferroptosis-related genes (FRGs) were obtained from FerrDb database. We performed consensus clustering analysis to identify ferroptosis-related molecular subtypes for PCa. Univariate and multivariate Cox regression analysis were used to establish a ferroptosis-based signature for predicting BCRFS. Internal verification, external verification and subgroup survival analysis were then successfully performed. Results: There was a total of 40 differentially expressed FRGs in PCa. We then identified three ferroptosis-related molecular clusters of PCa, which have significantly different immune infiltrating cells, tumor immune microenvironment and PD-L1 expression level. More importantly, a novel ferroptosis-based signature for predicting BCRFS of PCa based on four FRGs (including ASNS, GPT2, NFE2L2, RRM2) was developed. Internal and external verifications were then successfully performed. Patients with high-risk score were associated with significant poor BCRFS compared with those with low-risk score in training cohort, testing cohort and validating cohort, respectively. The area under time-dependent Receiver Operating Characteristic (ROC) curve were 0.755, 0.705 and 0.726 in training cohort, testing cohort and validating cohort, respectively, indicating the great performance of this signature. Independent prognostic analysis indicated that this signature was an independent predictor for BCRFS of PCa. Subgroup analysis revealed that this signature was particularly suitable for younger or stage T III-IV or stage N0 or cluster 1-2 PCa patients. Patients with high-risk score have significantly different tumor immune microenvironment in comparison with those with low-risk score. The results of qRT-PCR successfully verified the mRNA expression levels of ASNS, GPT2, RRM2 and NFE2L2 in DU-145 and RWPE-1 cells while the results of IHC staining exactly verified the relative protein expression levels of ASNS, GPT2, RRM2 and NFE2L2 between PCa and BPH tissues. Conclusions: This study successfully identified three ferroptosis-related molecular clusters. Besides, we developed and validated a novel ferroptosis-based molecular signature, which performed well in predicting BCRFS and tumor immune microenvironment of PCa.
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Affiliation(s)
- Zhi-Bin Ke
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Qi You
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Jiang-Bo Sun
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Jun-Ming Zhu
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Xiao-Dong Li
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Dong-Ning Chen
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Li Su
- Department of Radiotherapy, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Qing-Shui Zheng
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yong Wei
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Xue-Yi Xue
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Ning Xu
- Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Precision Medicine for Cancer, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
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Okubo Y, Sato S, Osaka K, Yamamoto Y, Suzuki T, Ida A, Yoshioka E, Suzuki M, Washimi K, Yokose T, Kishida T, Miyagi Y. Clinicopathological Analysis of the ISUP Grade Group And Other Parameters in Prostate Cancer: Elucidation of Mutual Impact of the Various Parameters. Front Oncol 2021; 11:695251. [PMID: 34395260 PMCID: PMC8356042 DOI: 10.3389/fonc.2021.695251] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/13/2021] [Indexed: 01/29/2023] Open
Abstract
Background Prostate cancer has become increasingly common worldwide. Although Grade group (GG) is widely accepted as an indicator of prostate cancer grade, there are malignancies that cannot be defined by GG alone. Moreover, the relationship between GG and other parameters remains unclear. Herein, we aimed to explore the biological characteristics of prostate cancer. Methods This study included 299 radical prostatectomy cases. The Chi-square test and analysis of variance were used to analyze the association of GG with binary and continuous variables. We then conducted morphological analyses. Multivariate analyses were performed to extract the data on risk factors for biochemical recurrence (BCR) and lymph node metastasis. Results The lymphatic, venous, perineural, and seminal vesicle invasion rates were 37/299 (12.4%), 25/299 (8.4%), 280/299 (93.6%), and 23/299 (7.7%), respectively. The extraprostatic extension (EPE), positive surgical margin, tertiary Gleason pattern 5, intraductal carcinoma of the prostate gland, and lymph node metastasis rates were 89/299 (29.8%), 106/299 (35.5%), 33/260 (12.7%), 56/299 (18.7%), and 23/299 (7.7%), respectively. As GG increased, various parameters became easier to visualize; however, there were differences between the parameters. Postoperative BCR was observed in 31/242 (12.8%) cases without preoperative hormone therapy; GG2, GG3, GG4, and GG5 accounted for 4, 7, 7, and 13 cases, respectively. Multivariate analyses revealed that GG and tumor diameter were significant risk factors for early BCR, whereas lymphatic invasion, EPE, and seminal vesicle invasion were significant risk factors for lymph node metastasis. For BCR, the odds ratios (ORs) for GG and tumor diameter were 2.253 (95% confidence interval (CI]): 1.297–3.912; P=0.004) and 1.074 (95% CI: 1.011–1.142; P=0.022), respectively. For lymph node metastasis, ORs for the presence of lymphatic invasion, EPE, and seminal vesicle invasion were 7.425 (95% CI: 1.688–22.583; P=0.004), 4.391 (95% CI: 1.037–18.589; P=0.044), and 5.755 (95% CI: 1.308–25.316; P=0.021), respectively. Conclusions We summarized various parameters correlating with each GG. Through multivariate analyses, we established the independent risk factors for early BCR and lymph node metastasis. In addition to GG, other important indices of malignancy were determined and weighted to provide a basis for future investigations.
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Affiliation(s)
- Yoichiro Okubo
- Department of Pathology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Shinya Sato
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Kanagawa, Japan
| | - Kimito Osaka
- Department of Urology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Yayoi Yamamoto
- Department of Radiology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Takahisa Suzuki
- Department of Urology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Arika Ida
- Department of Pathology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Emi Yoshioka
- Department of Pathology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Masaki Suzuki
- Department of Pathology, Kanagawa Cancer Center, Kanagawa, Japan.,Department of Pathology, University of Tokyo Hospital, Tokyo, Japan
| | - Kota Washimi
- Department of Pathology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Takeshi Kishida
- Department of Urology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Yohei Miyagi
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Kanagawa, Japan
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