1
|
Nishimoto M, Fujita K, Ri A, Fujimoto S, Oguma Y, Toyoda S, Hashimoto M, Kikuchi T, Adomi S, Saito Y, Mori Y, Minami T, Nozawa M, Yoshimura K, Hosono M, Uemura H. Gleason Pattern 5 May Be a Prognostic Factor in Radium-223 Treatment. CANCER DIAGNOSIS & PROGNOSIS 2024; 4:441-446. [PMID: 38962543 PMCID: PMC11215439 DOI: 10.21873/cdp.10345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/08/2024] [Indexed: 07/05/2024]
Abstract
Background/Aim Radium-223 treatment reduces the risk of death in patients with metastatic castration-resistant prostate cancer (CRPC). This study analyzed the prognostic factors in patients treated with radium-223 dichloride. Patients and Methods Patients who received radium-223 dichloride were retrospectively analyzed. Prostate-specific antigen (PSA) response and alkaline phosphatase (ALP) decline rates were analyzed. Overall survival (OS) was evaluated using Kaplan-Meier curves, and prognostic factors for OS were assessed using Cox proportional hazards analysis. Results Fifty-six patients were included in the study. The five-year OS rate in patients after diagnosis of CRPC was 62.2% [95% confidence interval (CI)=27.55-112.45], while the five-year OS rate in patients at the initiation of radium-223 treatment was 21.3% (95%CI=17.20-36.79). Six patients (11.1%) had a >50% PSA decline rate, and 10 (17.9%) had a >50% ALP decline rate. Cox proportional hazards analysis showed that PSA levels at the initiation of radium-223 treatment [hazard ratio (HR)=1.00; 95%CI=1.00-1.00; p=0.0054] and Gleason Pattern (GP) 5 (HR=5.42; 95%CI=1.08-27.27; p=0.0400) were associated with OS. Patients with GP 5 had a significantly poorer prognosis compared with patients with a GP ≤4. Early administration of radium-223 as a first- or second-line treatment was not associated with OS compared with late administration of radium-223 as a third-line or later treatment. Conclusion GP 5 and high PSA levels at radium-223 initiation were associated with worse OS. Radium-223 as first- or second-line treatment was not associated with OS. Therefore, a treatment strategy for CRPC based on GP 5 is needed.
Collapse
Affiliation(s)
| | - Kazutoshi Fujita
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Aritoshi Ri
- Department of Radiation Oncology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Saizo Fujimoto
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Yasuo Oguma
- Department of Radiation Oncology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Shingo Toyoda
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Mamoru Hashimoto
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Takashi Kikuchi
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Shogo Adomi
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Yoshitaka Saito
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Yasunori Mori
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Takafumi Minami
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Masahiro Nozawa
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Kazuhiro Yoshimura
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Makoto Hosono
- Department of Radiation Oncology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Hirotsugu Uemura
- Department of Urology, Faculty of Medicine, Kindai University, Osaka, Japan
| |
Collapse
|
2
|
Tercan E, Erbatu OU, Üçer O, Metin S, Ne E N. Evaluating the effect of histopathological parameters of prostate adenocarcinoma on prognosis in radical prostatectomy specimens. Ann Saudi Med 2024; 44:234-248. [PMID: 39127900 DOI: 10.5144/0256-4947.2024.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/12/2024] Open
Abstract
BACKGROUND Over the past decade, significant updates have been made regarding the classification and grading of prostate adenocarcinoma in radical prostatectomy specimens, following decisions reached in international conferences and through impactful publications. These alterations are closely linked to patient prognosis. OBJECTIVES Observe the incidence of these changes and their impact on patient prognosis. Additionally, investigate the relationship between histopathological and clinical parameters to assist in multidisciplinary treatment planning. DESIGN Retrospective cohort study. SETTING Tertiary university hospital. METHODS Hematoxylin and eosin, along with immunohistochemistry stained sections, were reevaluated, and clinical information, including patient demographics, preoperative PSA levels, and patient follow-up were collected from patients who underwent radical prostatectomy at our center. SAMPLE SIZE 182 patients. MAIN OUTCOME MEASURES Biochemical recurrence. RESULTS The study highlighted the negative prognostic effects of factors such as Gleason grade group, lymphovascular invasion, intraductal carcinoma, positive surgical margins, extraprostatic extension, pathological T stage, and seminal vesicle invasion. These factors are important determinants of recurrence-free survival in prostate adenocarcinoma patients. CONCLUSION This study identified comedonecrosis and intraductal carcinoma as independent negative prognostic factors. A 3-mm cutoff for positive surgical margins was supported, while the current cutoff for extraprostatic extension may require reevaluation. The impact of cribriform pattern and ductal carcinoma appears to be influenced by the grade group. No independent relationship was found between the Gleason score/pattern on positive surgical margins or extraprostatic extension and prognosis. Further, large-scale studies with long-term follow-up are needed. LIMITATIONS The study is limited by the relatively small number of patients for certain parameters.
Collapse
Affiliation(s)
- Ergün Tercan
- From the Department of Pathology, Manisa Celal Bayar University, Manisa, Turkey
| | - O Uzcan Erbatu
- From the Department of Urology, Manisa Celal Bayar University, Manisa, Turkey
| | - Oktay Üçer
- From the Department of Urology, Manisa Celal Bayar University, Manisa, Turkey
| | - Sefa Metin
- From the Department of Pharmacology, Pharmaceuticals and Medical Devices Agency of Türkiye, Ankara, Turkey
| | - Nalan Ne E
- From the Department of Pathology, Manisa Celal Bayar University, Manisa, Turkey
| |
Collapse
|
3
|
Ci X, Chen S, Zhu R, Zarif M, Jain R, Guo W, Ramotar M, Gong L, Xu W, Singh O, Mansouri S, Zadeh G, Wei GH, Xu W, Bristow R, Berlin A, Koritzinsky M, van der Kwast T, He HH. Oral pimonidazole unveils clinicopathologic and epigenetic features of hypoxic tumour aggressiveness in localized prostate cancer. BMC Cancer 2024; 24:744. [PMID: 38890593 PMCID: PMC11186205 DOI: 10.1186/s12885-024-12505-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 06/11/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Tumor hypoxia is associated with prostate cancer (PCa) treatment resistance and poor prognosis. Pimonidazole (PIMO) is an investigational hypoxia probe used in clinical trials. A better understanding of the clinical significance and molecular alterations underpinning PIMO-labeled tumor hypoxia is needed for future clinical application. Here, we investigated the clinical significance and molecular alterations underpinning PIMO-labeled tumor hypoxia in patients with localized PCa, in order to apply PIMO as a prognostic tool and to identify potential biomarkers for future clinical translation. METHODS A total of 39 patients with localized PCa were recruited and administered oral PIMO before undergoing radical prostatectomy (RadP). Immunohistochemical staining for PIMO was performed on 37 prostatectomy specimens with staining patterns evaluated and clinical association analyzed. Whole genome bisulfite sequencing was performed using laser-capture of microdissected specimen sections comparing PIMO positive and negative tumor areas. A hypoxia related methylation molecular signature was generated by integrating the differentially methylated regions with previously established RNA-seq datasets. RESULTS Three PIMO staining patterns were distinguished: diffuse, focal, and comedo-like. The comedo-like staining pattern was more commonly associated with adverse pathology. PIMO-defined hypoxia intensity was positively correlated with advanced pathologic stage, tumor invasion, and cribriform and intraductal carcinoma morphology. The generated DNA methylation signature was found to be a robust hypoxia biomarker, which could risk-stratify PCa patients across multiple clinical datasets, as well as be applicable in other cancer types. CONCLUSIONS Oral PIMO unveiled clinicopathologic features of disease aggressiveness in localized PCa. The generated DNA methylation signature is a novel and robust hypoxia biomarker that has the potential for future clinical translation.
Collapse
Affiliation(s)
- Xinpei Ci
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Sujun Chen
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
- Present Address: West China School of Public Health, West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, Sichuan, China
| | - Rui Zhu
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Mojgan Zarif
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Rahi Jain
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Wangyuan Guo
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Matthew Ramotar
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Linsey Gong
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Wenjie Xu
- MOE Key Laboratory of Metabolism and Molecular Medicine and Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences, and Fudan University Shanghai Cancer Center, Shanghai Medical College of Fudan University, Shanghai, China
| | - Olivia Singh
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Sheila Mansouri
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Gelareh Zadeh
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
- Division of Neurosurgery, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Gong-Hong Wei
- MOE Key Laboratory of Metabolism and Molecular Medicine and Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences, and Fudan University Shanghai Cancer Center, Shanghai Medical College of Fudan University, Shanghai, China
| | - Wei Xu
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Robert Bristow
- Division of Cancer Sciences, University of Manchester, Manchester, UK
- Christie NHS Trust and CRUK Manchester Institute and Cancer Centre, Manchester, UK
| | - Alejandro Berlin
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
| | - Marianne Koritzinsky
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada.
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada.
| | - Theodorus van der Kwast
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
- Division of Anatomic Pathology, Laboratory Medicine Program, University Health Network, Toronto, ON, Canada.
| | - Housheng Hansen He
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
4
|
Kim S, Chaudhary PK, Upadhayaya S, Seo KW, Kim S. Histopathological and Immunohistochemical Characterization of Sebaceous Adenoma and Epithelioma in Dogs. Animals (Basel) 2024; 14:1457. [PMID: 38791674 PMCID: PMC11117200 DOI: 10.3390/ani14101457] [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: 03/28/2024] [Revised: 05/09/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Sebaceous gland tumors are neoplasms originating from the sebaceous gland and are the third most common type of skin tumor, accounting for 21-35% of all cutaneous neoplasms in dogs. According to their histopathological characteristics, sebaceous gland tumors can be classified into adenoma as a benign tumor and epithelioma as a malignant tumor. Sebaceous epithelioma is distinguished from sebaceous adenoma by containing 90% or more reserve cells. However, this simple numerical criterion is insufficient to histologically distinguish between epitheliomas and adenomas. In addition, sebaceoma in humans, a similar tumor to sebaceous epithelioma, is a term used for tumors with more than 50% of reserve cells, unlike epithelioma. Therefore, we aimed to compare and characterize the histological and immunohistochemical profiles of comprehensive sebaceous adenoma, epithelioma, and borderline tumors that have more than 50% but less than 90% of reserve cells. A total of 14 canine sebaceous tumors were diagnosed as seven adenomas, four borderline tumors, and three epitheliomas. Histologically, the sebaceous adenomas showed nodules consisting of mature sebocytes surrounded by monolayer basaloid cells. In contrast, the portion of the reserve cells was increased, the portion of lipidized cells was decreased, and the majority of lipidized cells were found to be immature in sebaceous epithelioma. In the sebaceous adenomas, necrosis was not observed and mitotic figures were rarely seen. However, necrosis and mitotic figures were highly frequent in both borderline tumor and sebaceous epithelioma. Immunohistochemistry revealed that borderline tumor and sebaceous epithelioma showed significantly higher expression against Ki-67 than sebaceous adenoma. We conclude that it is more accurate to employ the cut-off value of 50% reserve cells in humans rather than the current 90% reserve cells for classifying sebaceous gland tumors in dogs, thereby providing new insight into the characterization of the sebaceous gland tumors.
Collapse
Affiliation(s)
| | | | | | | | - Soochong Kim
- College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea; (S.K.); (P.K.C.); (S.U.); (K.W.S.)
| |
Collapse
|
5
|
Muthusamy S, Smith SC. Contemporary Diagnostic Reporting for Prostatic Adenocarcinoma: Morphologic Aspects, Molecular Correlates, and Management Perspectives. Adv Anat Pathol 2024; 31:188-201. [PMID: 38525660 DOI: 10.1097/pap.0000000000000444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
The diagnosis and reporting of prostatic adenocarcinoma have evolved from the classic framework promulgated by Dr Donald Gleason in the 1960s into a complex and nuanced system of grading and reporting that nonetheless retains the essence of his remarkable observations. The criteria for the "Gleason patterns" originally proposed have been continually refined by consensuses in the field, and Gleason scores have been stratified into a patient-friendly set of prognostically validated and widely adopted Grade Groups. One product of this successful grading approach has been the opportunity for pathologists to report diagnoses that signal carefully personalized management, placing the surgical pathologist's interpretation at the center of patient care. At one end of the continuum of disease aggressiveness, personalized diagnostic care means to sub-stratify patients with more indolent disease for active surveillance, while at the other end of the continuum, reporting histologic markers signaling aggression allows sub-stratification of clinically significant disease. Whether contemporary reporting parameters represent deeper nuances of more established ones (eg, new criteria and/or quantitation of Gleason patterns 4 and 5) or represent additional features reported alongside grade (intraductal carcinoma, cribriform patterns of carcinoma), assessment and grading have become more complex and demanding. Herein, we explore these newer reporting parameters, highlighting the state of knowledge regarding morphologic, molecular, and management aspects. Emphasis is made on the increasing value and stakes of histopathologists' interpretations and reporting into current clinical risk stratification and treatment guidelines.
Collapse
Affiliation(s)
| | - Steven Christopher Smith
- Department of Pathology, VCU School of Medicine, Richmond, VA
- Department of Surgery, Division of Urology, VCU School of Medicine, Richmond, VA
- Richmond Veterans Affairs Medical Center, Richmond, VA
- Massey Comprehensive Cancer Center, VCU Health, Richmond, VA
| |
Collapse
|
6
|
Russo GI, Soeterik T, Puche-Sanz I, Broggi G, Lo Giudice A, De Nunzio C, Lombardo R, Marra G, Gandaglia G. Oncological outcomes of cribriform histology pattern in prostate cancer patients: a systematic review and meta-analysis. Prostate Cancer Prostatic Dis 2023; 26:646-654. [PMID: 36216967 DOI: 10.1038/s41391-022-00600-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/25/2022] [Accepted: 09/23/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND Changes applied to the Prostate cancer (PCa) histopathology grading, where patients with cribriform patterns (CP) may be categorized as grade group 2 and could hypothetically be surveilled. However, CP has been associated with worse oncological outcomes. The aim of our study is to systematically review and meta-analyze the available evidence on CP in PCa patients. METHODS This analysis was registered on PROSPERO (CRD42022298473). We performed a systematic literature search of PubMed, EMBASE and Scopus using Medical Subject Headings (MeSH) indexes, keyword searches, and publication types until December 2021. The search terms included: "prostate", "prostate cancer" and "cribriform". We also searched reference lists of relevant articles. Eligible studies included published journal articles that provided quantitative data on the association between cribriform patterns at radical prostatectomy and the presence of extra-prostatic extension (EPE), seminal vesicle invasion (SVI), positive surgical margins (PSM), biochemical recurrence (BCR) or cancer specific mortality (CSM). RESULTS Overall, 31 studies were included for the quantitative analysis. All articles have been published during a span of 11 years (2011-2022) with a mean month of follow-up of 62.87 months. The mean quality of these studies, assessed with the Newcastle Ottawa Scale was 6.27. We demonstrated that CP was associated with greater risk of EPE (odds ratio [OR] 1.96; P < 0.0001), SVI (OR: 2.89; p < 0.01), and PSM (OR: 1.88; p < 0.0007). Our analyses showed that CP was associated with greater risk of BCR (hazard ratio [HR]: 2.14; p < 0.01) and of CSM (HR: 3.30, p < 0.01). CONCLUSION The presence of CP is associated with adverse pathology at radical prostatectomy and worse biochemical recurrence and cancer specific mortality. These results highlight the importance of a better pathologic report of CP to advise clinician for a strict follow-up in PCa patients.
Collapse
Affiliation(s)
| | - Timo Soeterik
- Department of Urology, St Antonius Hospital, Utrecht, The Netherlands
| | - Ignacio Puche-Sanz
- Hospital Universitario Virgen de las Nieves (HUVN). Department of Urology. Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
| | - Giuseppe Broggi
- Department of Medical and Surgical Sciences and Advanced Technologies "G.F. Ingrassia", Catania, Italy
| | | | - Cosimo De Nunzio
- Department of Urology, "Sant'Andrea" Hospital, "La Sapienza" University, Rome, Italy
| | - Riccardo Lombardo
- Department of Urology, "Sant'Andrea" Hospital, "La Sapienza" University, Rome, Italy
| | - Giancarlo Marra
- Department of Surgical Sciences, University of Turin and Città della Salute e della Scienza, Turin, Italy
| | - Giorgio Gandaglia
- Unit of Urology/Division of Oncology, IRCCS Ospedale San Raffaele, Milan, Italy
| |
Collapse
|
7
|
Bogaard M, Skotheim RI, Maltau AV, Kidd SG, Lothe RA, Axcrona K, Axcrona U. 'High proliferative cribriform prostate cancer' defines a patient subgroup with an inferior prognosis. Histopathology 2023; 83:853-869. [PMID: 37501635 DOI: 10.1111/his.15012] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/28/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023]
Abstract
AIMS A cribriform pattern, reactive stroma (RS), PTEN, Ki67 and ERG are promising prognostic biomarkers in primary prostate cancer (PCa). We aim to determine the relative contribution of these factors and the Cancer of the Prostate Risk Assessment Postsurgical (CAPRA-S) score in predicting PCa prognosis. METHODS AND RESULTS We included 475 patients who underwent radical prostatectomy (2010-12, median follow-up = 8.7 years). Cribriform pattern was identified in 57% of patients, PTEN loss in 55%, ERG expression in 51%, RS in 39% and high Ki67 in 9%. In patients with multiple samples from the same malignant focus and either PTEN loss or high Ki67, intrafocal heterogeneity for PTEN and Ki67 expression was detected in 55% and 89%, respectively. In patients with samples from two or more foci, interfocal heterogeneity was detected in 46% for PTEN and 6% for Ki67. A cribriform pattern and Ki67 were independent predictors of biochemical recurrence (BCR) and clinical recurrence (CR), whereas ERG expression was an independent predictor of CR. Besides CAPRA-S, a cribriform pattern provided the highest relative proportion of explained variation for predicting BCR (11%), and Ki67 provided the highest relative proportion of explained variation for CR (21%). In patients with a cribriform pattern, high Ki67 was associated with a higher risk of BCR [hazard ratio (HR) = 2.83, P < 0.001] and CR (HR = 4.35, P < 0.001). CONCLUSIONS High Ki67 in patients with a cribriform pattern identifies a patient subgroup with particularly poor prognosis, which we termed 'high proliferative cribriform prostate cancer'. These results support reporting a cribriform pattern in pathology reports, and advocate implementing Ki67.
Collapse
Affiliation(s)
- Mari Bogaard
- Department of Pathology, Oslo University Hospital-Radiumhospitalet, Oslo, Norway
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Radiumhospitalet, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Rolf I Skotheim
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Radiumhospitalet, Oslo, Norway
- Department of Informatics, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
| | - Aase V Maltau
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Radiumhospitalet, Oslo, Norway
| | - Susanne G Kidd
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Radiumhospitalet, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ragnhild A Lothe
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Radiumhospitalet, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Karol Axcrona
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Radiumhospitalet, Oslo, Norway
- Department of Urology, Akershus University Hospital, Lørenskog, Norway
| | - Ulrika Axcrona
- Department of Pathology, Oslo University Hospital-Radiumhospitalet, Oslo, Norway
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Radiumhospitalet, Oslo, Norway
| |
Collapse
|
8
|
Aiyer KTS, Kroon LJ, van Leenders GJLH. Impact of comedonecrosis on prostate cancer outcome: a systematic review. Histopathology 2023; 83:339-347. [PMID: 37195595 DOI: 10.1111/his.14945] [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: 03/02/2023] [Revised: 04/13/2023] [Accepted: 04/30/2023] [Indexed: 05/18/2023]
Abstract
Cribriform architecture has been recognised as an independent parameter for prostate cancer outcome. Little is yet known on the added value of individual Gleason 5 growth patterns. Comedonecrosis is assigned Gleason pattern 5 and can occur in both invasive and intraductal carcinoma. The aim of this study is to systematically review the literature for the prognostic value of comedonecrosis in prostate cancer. A systematic literature search of Medline, Web of Science, Cochrane library and Google scholar was performed according to the Preferred reporting items for systematic reviews and meta-analysis (PRISMA)guidelines. After identification and screening of all relevant studies published up to July 2022, 12 manuscripts were included. Clinicopathological data were extracted and the presence of comedonecrosis in either invasive, intraductal or ductal carcinoma was associated with at least one clinical outcome measure. No meta-analysis was performed. Eight of 11 studies showed that comedonecrosis was significantly associated with biochemical recurrence and two studies with metastasis or death. The only studies using metastasis-free and disease specific-free survival as an endpoint both found comedonecrosis to be an independent prognostic parameter in multivariate analysis. The studies were all retrospective and demonstrated considerable heterogeneity with regard to clinical specimen, tumour type, grade group, correction for confounding factors and endpoints. This systematic review demonstrates weak evidence for comedonecrosis to be associated with adverse prostate cancer outcome. Study heterogeneity and lack of correction for confounding factors prohibit drawing of definitive conclusions.
Collapse
Affiliation(s)
- Kaveri T S Aiyer
- Department of Pathology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, the Netherlands
| | - Lisa J Kroon
- Department of Pathology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, the Netherlands
| | - Geert J L H van Leenders
- Department of Pathology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, the Netherlands
| |
Collapse
|
9
|
Wang Y, Teramoto Y, Miyamoto H. Comedonecrosis within conventional prostatic adenocarcinoma vs. intraductal carcinoma of the prostate: their clinical significance is not comparable. Hum Pathol 2023; 138:112-120. [PMID: 37364826 DOI: 10.1016/j.humpath.2023.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/09/2023] [Accepted: 06/21/2023] [Indexed: 06/28/2023]
Abstract
It remains controversial if Gleason grade should be assigned to intraductal carcinoma of the prostate (IDC-P) and if the prognostic value of comedonecrosis associated with IDC-P is equivalent to that in conventional/invasive prostatic adenocarcinoma (CPA) as a Gleason grade 5 pattern. We herein assessed radical prostatectomy findings and postoperative outcomes in 287 patients with CPA exhibiting any Gleason pattern 5. Our cases were divided into 4 cohorts according to the absence or presence of necrosis within CPA and/or IDC-P: Cohort-1) no necrosis in CPA/IDC-P (n = 179; 62.4%); Cohort-2) necrosis only in CPA (n = 25; 8.7%); Cohort-3) necrosis only in IDC-P (n = 62; 21.6%); and Cohort-4) necrosis in both CPA and IDC-P (n = 21; 7.3%). Univariate analysis revealed patients with necrosis only in IDC-P (P < .001) or both CPA and IDC-P (P = .001) had a higher risk of progression than those with necrosis only in CPA, while the prognosis was comparable between the no necrosis group vs. the CPA only necrosis group (P = .680) or the IDC-P only necrosis group vs. the CPA/IDC-P necrosis group (P = .715). In a subgroup of patients exhibiting IDC-P (n = 198), the presence of IDC-P necrosis was still associated with a significantly higher progression risk, compared with CPA necrosis only. In multivariable analysis, necrosis only in IDC-P (vs. necrosis only in CPA) showed significantly worse progression-free survival (HR = 3.193, P = .003). IDC-P necrosis, as an independent predictor, was thus found to be associated with significantly worse oncologic outcomes, compared with necrosis only in CPA, and might therefore be better not to be simply considered as a grade 5 pattern.
Collapse
Affiliation(s)
- Ying Wang
- Department of Pathology & Laboratory Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Yuki Teramoto
- Department of Pathology & Laboratory Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA; James P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Hiroshi Miyamoto
- Department of Pathology & Laboratory Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA; James P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Urology, University of Rochester Medical Center, Rochester, NY 14642, USA.
| |
Collapse
|
10
|
Marra G, van Leenders GJLH, Zattoni F, Kesch C, Rajwa P, Cornford P, van der Kwast T, van den Bergh RCN, Briers E, Van den Broeck T, De Meerleer G, De Santis M, Eberli D, Farolfi A, Gillessen S, Grivas N, Grummet JP, Henry AM, Lardas M, Lieuw M, Linares Espinós E, Mason MD, O'Hanlon S, van Oort IM, Oprea-Lager DE, Ploussard G, Rouvière O, Schoots IG, Stranne J, Tilki D, Wiegel T, Willemse PPM, Mottet N, Gandaglia G. Impact of Epithelial Histological Types, Subtypes, and Growth Patterns on Oncological Outcomes for Patients with Nonmetastatic Prostate Cancer Treated with Curative Intent: A Systematic Review. Eur Urol 2023:S0302-2838(23)02654-4. [PMID: 37117107 DOI: 10.1016/j.eururo.2023.03.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/11/2023] [Accepted: 03/14/2023] [Indexed: 04/30/2023]
Abstract
CONTEXT The optimal management for men with prostate cancer (PCa) with unconventional histology (UH) is unknown. The outcome for these cancers might be worse than for conventional PCa and so different approaches may be needed. OBJECTIVE To compare oncological outcomes for conventional and UH PCa in men with localized disease treated with curative intent. EVIDENCE ACQUISITION A systematic review adhering to the Referred Reporting Items for Systematic Reviews and Meta-Analyses was prospectively registered on PROSPERO (CRD42022296013) was performed in July 2021. EVIDENCE SYNTHESIS We screened 3651 manuscripts and identified 46 eligible studies (reporting on 1 871 814 men with conventional PCa and 6929 men with 10 different PCa UHs). Extraprostatic extension and lymph node metastases, but not positive margin rates, were more common with UH PCa than with conventional tumors. PCa cases with cribriform pattern, intraductal carcinoma, or ductal adenocarcinoma had higher rates of biochemical recurrence and metastases after radical prostatectomy than for conventional PCa cases. Lower cancer-specific survival rates were observed for mixed cribriform/intraductal and cribriform PCa. By contrast, pathological findings and oncological outcomes for mucinous and prostatic intraepithelial neoplasia (PIN)-like PCa were similar to those for conventional PCa. Limitations of this review include low-quality studies, a risk of reporting bias, and a scarcity of studies that included radiotherapy. CONCLUSIONS Intraductal, cribriform, and ductal UHs may have worse oncological outcomes than for conventional and mucinous or PIN-like PCa. Alternative treatment approaches need to be evaluated in men with these cancers. PATIENT SUMMARY We reviewed the literature to explore whether prostate cancers with unconventional growth patterns behave differently to conventional prostate cancers. We found that some unconventional growth patterns have worse outcomes, so we need to investigate if they need different treatments. Urologists should be aware of these growth patterns and their clinical impact.
Collapse
Affiliation(s)
- Giancarlo Marra
- Department of Urology, Città della Salute e della Scienza, University of Turin, Turin, Italy.
| | - Geert J L H van Leenders
- Department of Pathology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, The Netherlands
| | - Fabio Zattoni
- Urologic Unit, Department of Surgery, Oncology and Gastroenterology, University of Padova, Padua, Italy
| | - Claudia Kesch
- Department of Urology, West German Cancer Center, University of Duisburg, Essen, Germany; German Cancer Consortium, University Hospital Essen, Essen, Germany
| | - Pawel Rajwa
- Department of Urology, Medical University of Silesia, Zabrze, Poland; Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | | | | | | | | | | | - Gert De Meerleer
- Department of Radiotherapy, University Hospitals Leuven, Leuven, Belgium
| | - Maria De Santis
- Department of Urology, West German Cancer Center, University of Duisburg, Essen, Germany; Department of Urology, Charité Universitätsmedizin, Berlin, Germany
| | - Daniel Eberli
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Andrea Farolfi
- Nuclear Medicine Division, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Silke Gillessen
- Oncology Institute of Southern Switzerland, Bellinzona, Switzerland; Università della Svizzera Italiana, Lugano, Switzerland; University of Bern, Bern, Switzerland; Division of Cancer Sciences, University of Manchester, Manchester, UK
| | - Nikolaos Grivas
- Department of Urology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jeremy P Grummet
- Department of Surgery, Central Clinical School, Monash University, Caulfield North, Australia
| | - Ann M Henry
- Leeds Cancer Centre, St. James's University Hospital and University of Leeds, Leeds, UK
| | - Michael Lardas
- Department of Urology, Metropolitan General Hospital, Athens, Greece
| | - Matt Lieuw
- Department of Urology, Wrightington, Wigan and Leigh NHS Foundation Trust, Wigan, UK
| | | | - Malcolm D Mason
- Division of Cancer and Genetics, School of Medicine Cardiff University, Velindre Cancer Centre, Cardiff, UK
| | - Shane O'Hanlon
- Medicine for Older People, Saint Vincent's University Hospital, Dublin, Ireland
| | - Inge M van Oort
- Department of Urology, Radboudumc, Nijmegen, The Netherlands
| | - Daniela E Oprea-Lager
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, VU Medical Center, Amsterdam, The Netherlands
| | - Guillaume Ploussard
- La Croix du Sud Hospital, Quint Fonsegrives, France; Institut Universitaire du Cancer-Toulouse, Onocopole, Toulouse, France
| | - Olivier Rouvière
- Department of Urinary and Vascular Imaging, Hospices Civils de Lyon, Hôpital Edouard Herriot, Lyon, France; Faculté de Médecine Lyon Est, Université de Lyon, Université Lyon 1, Lyon, France
| | - Ivo G Schoots
- Department of Radiology & Nuclear Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Radiology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Johan Stranne
- Department of Urology, Institute of Clinical Science, Sahlgrenska Academy, University of Gothenburg, Gothenburg Sweden; Department of Urology, Sahlgrenska University Hospital, Region Västra Götaland, Gothenborg, Sweden
| | - Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Department of Urology, Koc University Hospital, Istanbul, Turkey
| | - Thomas Wiegel
- Department of Radiation Oncology, University Hospital Ulm, Ulm, Germany
| | - Peter-Paul M Willemse
- Department of Urology, Cancer Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Nicolas Mottet
- Centre Hospitalo-Universitaire de Saint Etienne, Saint Etienne, France
| | - Giorgio Gandaglia
- Division of Oncology/Unit of Urology, Urological Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
| |
Collapse
|
11
|
Oufattole J, Dey T, D'Amico AV, van Leenders GJLH, Acosta AM. Cribriform morphology is associated with higher risk of biochemical recurrence after radical prostatectomy in patients with Grade Group 5 prostate cancer. Histopathology 2023; 82:1089-1097. [PMID: 36939057 DOI: 10.1111/his.14901] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/14/2023] [Accepted: 02/23/2023] [Indexed: 03/21/2023]
Abstract
AIMS Grade Group 5 (GG5) prostate cancer (PCa) is associated with a high risk of disease recurrence after radical prostatectomy (~75% at 5 years). However, this is a heterogeneous category that includes neoplasms with different combinations of Gleason pattern (GP) 4 and 5. Within GP4, large cribriform growth has been associated with adverse disease-specific outcomes in GG2-4 PCa. Less is known about the significance of cribriform morphology and the different histologic patterns of GP5 in GG5 PCa. METHODS AND RESULTS In this study we evaluated the prognostic implications of cribriform morphology (either invasive or intraductal, henceforth "cribriform") and large solid growth or comedonecrosis (comedo/solid) in patients with GG5 PCa. One-hundred and thirty prostatectomies from a single institution were analysed. The presence of comedo/solid components was associated with a higher frequency of concurrent cribriform PCa (85.7% versus 45.9%, P < 0.001), lymphovascular invasion (44.6% versus 27%, P = 0.04), and biochemical recurrence (48.2% versus 28.4%, P = 0.03). The presence of large cribriform growth was associated with a higher frequency of extraprostatic involvement (i.e. pT3a-b; 85.3% versus 68.7%, P = 0.02), positive surgical margins (47.6% versus 29.2%, P = 0.04) and biochemical recurrence (47.6% versus. 18.7%, P = 0.001). Kaplan-Meier analysis demonstrated that GG5 PCa with cribriform or comedo/solid components had a higher probability of biochemical recurrence. Multivariable analysis showed that only cribriform components were an independent predictor of a higher risk of biochemical recurrence in this series. CONCLUSION These findings highlight the importance of reporting the presence of cribriform components in GG5 PCa and suggest that cribriform morphology might help decide postsurgical management in these patients.
Collapse
Affiliation(s)
- Jihane Oufattole
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Tanujit Dey
- Center for Surgery and Public Health, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Anthony V D'Amico
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Geert J L H van Leenders
- Department of Pathology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, The Netherlands
| | - Andres M Acosta
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
12
|
Wyvekens N, Tsai HK, Sholl LM, Tucci J, Giannico GA, Gordetsky JB, Hirsch MS, Barletta JA, Acosta AM. Histopathologic and Genetic Features of Mismatch Repair-Deficient High-Grade Prostate Cancer. Histopathology 2022; 80:1050-1060. [PMID: 35395112 DOI: 10.1111/his.14645] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/01/2022] [Accepted: 03/14/2022] [Indexed: 11/30/2022]
Abstract
AIMS Mismatch repair (MMR) deficiency is commonly caused by functional inactivation of MLH1, PMS2, MSH2 or MSH6. The morphologic and molecular correlates of MMR deficiency have been extensively characterized in certain tumor types such as colorectal and endometrial adenocarcinoma. In contrast, the histologic and molecular features of MMR-deficient prostate cancer remain incompletely described. In this study, we evaluated 19 MMR-deficient prostate cancers, including 11 cases without prior systemic treatment. METHODS AND RESULTS All treatment-naïve cases (11/11, 100%) were Grade Group 4-5 and had predominant cribriform and/or solid growth patterns. Solid components (any amount) and tumor infiltrating lymphocytes were seen in 7/11 (64%) of these cases each. In 68 MMR-proficient Grade Group 5 prostate cancers, predominant cribriform or solid growth patterns, solid components (any amount) and tumor infiltrating lymphocytes were seen at significantly lower frequencies (31/68, 46%; 9/68, 13% and 6/62, 9%, respectively; p<0.001 for all comparisons). Molecular evaluation of 19 cases demonstrated that MMR-deficiency was secondary to functional loss of MSH2/MSH6 and MLH1/PMS2 in 15 cases (79%) and 4 cases (21%), respectively. Definite or likely germline mutations were present in 4 cases (4/19, 21%). TMPRSS2::ERG rearrangements were identified in 2 cases (2/19, 11%). Recurrent cancer-relevant somatic mutations included (but were not limited to) ATM, TP53, FOXA1, RB1, BRCA2 and PTEN. CONCLUSIONS MMR deficiency was most commonly secondary to inactivation of MSH2/MSH6 in this study. Importantly, MMR-deficient high-grade prostatic adenocarcinomas had morphologic features that might be useful to identify selected cases for MMR IHC.
Collapse
Affiliation(s)
- Nicolas Wyvekens
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Harrison K Tsai
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Lynette M Sholl
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Jonathan Tucci
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Giovanna A Giannico
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jennifer B Gordetsky
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Michelle S Hirsch
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Justine A Barletta
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Andres M Acosta
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| |
Collapse
|
13
|
Pantazopoulos H, Diop MK, Grosset AA, Rouleau-Gagné F, Al-Saleh A, Boblea T, Trudel D. Intraductal Carcinoma of the Prostate as a Cause of Prostate Cancer Metastasis: A Molecular Portrait. Cancers (Basel) 2022; 14:820. [PMID: 35159086 PMCID: PMC8834356 DOI: 10.3390/cancers14030820] [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: 01/07/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 02/01/2023] Open
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.
Collapse
Affiliation(s)
- Helen Pantazopoulos
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 Saint-Denis, Montreal, QC H2X 0A9, Canada; (H.P.); (M.-K.D.); (A.-A.G.); (F.R.-G.); (A.A.-S.); (T.B.)
- Institut du Cancer de Montréal, 900 Saint-Denis, Montreal, QC H2X 0A9, Canada
- Department of Pathology and Cellular Biology, Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC H3T 1J4, Canada
| | - Mame-Kany Diop
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 Saint-Denis, Montreal, QC H2X 0A9, Canada; (H.P.); (M.-K.D.); (A.-A.G.); (F.R.-G.); (A.A.-S.); (T.B.)
- Institut du Cancer de Montréal, 900 Saint-Denis, Montreal, QC H2X 0A9, Canada
- Department of Pathology and Cellular Biology, Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC H3T 1J4, Canada
| | - Andrée-Anne Grosset
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 Saint-Denis, Montreal, QC H2X 0A9, Canada; (H.P.); (M.-K.D.); (A.-A.G.); (F.R.-G.); (A.A.-S.); (T.B.)
- Institut du Cancer de Montréal, 900 Saint-Denis, Montreal, QC H2X 0A9, Canada
- Department of Pathology and Cellular Biology, Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC H3T 1J4, Canada
| | - Frédérique Rouleau-Gagné
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 Saint-Denis, Montreal, QC H2X 0A9, Canada; (H.P.); (M.-K.D.); (A.-A.G.); (F.R.-G.); (A.A.-S.); (T.B.)
- Institut du Cancer de Montréal, 900 Saint-Denis, Montreal, QC H2X 0A9, Canada
- Department of Pathology and Cellular Biology, Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC H3T 1J4, Canada
| | - Afnan Al-Saleh
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 Saint-Denis, Montreal, QC H2X 0A9, Canada; (H.P.); (M.-K.D.); (A.-A.G.); (F.R.-G.); (A.A.-S.); (T.B.)
- Institut du Cancer de Montréal, 900 Saint-Denis, Montreal, QC H2X 0A9, Canada
- Department of Pathology and Cellular Biology, Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC H3T 1J4, Canada
| | - Teodora Boblea
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 Saint-Denis, Montreal, QC H2X 0A9, Canada; (H.P.); (M.-K.D.); (A.-A.G.); (F.R.-G.); (A.A.-S.); (T.B.)
- Institut du Cancer de Montréal, 900 Saint-Denis, Montreal, QC H2X 0A9, Canada
| | - Dominique Trudel
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 Saint-Denis, Montreal, QC H2X 0A9, Canada; (H.P.); (M.-K.D.); (A.-A.G.); (F.R.-G.); (A.A.-S.); (T.B.)
- Institut du Cancer de Montréal, 900 Saint-Denis, Montreal, QC H2X 0A9, Canada
- Department of Pathology and Cellular Biology, Université de Montréal, 2900 Boulevard Édouard-Montpetit, Montreal, QC H3T 1J4, Canada
- Department of Pathology, Centre Hospitalier de l’Université de Montréal (CHUM), 1051 Sanguinet, Montreal, QC H2X 0C1, Canada
| |
Collapse
|