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Nergiz D, Yıldırım HT, Süren D, Sadullahoğlu C, Yıldırım Ş, Üreyen I. The frequency and prognostic role of P53 and P16 immunoexpression in primary ovarian mucinous tumors. Ann Diagn Pathol 2024; 72:152330. [PMID: 38772285 DOI: 10.1016/j.anndiagpath.2024.152330] [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: 03/06/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND Primary ovarian mucinous tumors are uncommon. Factors leading to invasive progression and metastatic disease have not been fully delineated yet. The aim of this study is to determine the rates of p53 and p16 immunoexpressions in primary ovarian mucinous tumors, to investigate their relationship with clinicopathologic factors and their impact on prognosis and survival. METHODS Seventy-eight primary ovarian mucinous tumors (30 mucinous cystadenomas, 30 mucinous borderline tumors (MBOT), 18 mucinous carcinomas (MOC)) were evaluated immunohistochemically with p53 and p16 staining. The demographic, clinicopathological data, and postoperative follow-up findings of the patients were analyzed. RESULTS Mutation-type p53 staining was present in 1/30 (3.3 %) cystadenoma, 10/30 (33.3 %) MBOT and 9/18 (50 %) MOC (p = 0.001). p16 overexpression was detected in 3/30 (10.0 %) MBOT and 5/18 (27.8 %) MOC, but not in any cystadenoma (p = 0.04). The frequency of mutation-type p53 staining in MBOTs with microinvasion was higher (71.4 %) than in those without (28.6 %, p = 0.026). The frequencies of p16 or p53 mutations were similar in MBOTs with and without intraepithelial carcinoma, or mural nodule (p > 0.05). In MOCs with ovarian surface involvement, mutation-type p53 staining was detected in 66.7 % (6/9) and p16 overexpression in 55.6 % (5/9) of the cases. A significant difference was found between MOCs with or without ovarian surface involvement regarding the frequency of p16 overexpression (p = 0.029). Any relationship was not detected between survival and p53 and p16 expression in MOCs (p > 0.05). CONCLUSION p53 and p16 mutation rates were higher in MOCs compared to mucinous cystadenomas and MBOTs and suggest a relevant role in the development of primary ovarian mucinous carcinoma, however further studies are needed in this regard.
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Affiliation(s)
- Döndü Nergiz
- Department of Pathology, Antalya Training and Research Hospital, Antalya, Turkey.
| | - Hülya Tosun Yıldırım
- Department of Pathology, Health Sciences University, Antalya Training and Research Hospital, Antalya, Turkey
| | - Dinç Süren
- Department of Pathology, Health Sciences University, Antalya Training and Research Hospital, Antalya, Turkey
| | - Canan Sadullahoğlu
- Department of Pathology, Health Sciences University, Antalya Training and Research Hospital, Antalya, Turkey
| | - Şenay Yıldırım
- Department of Pathology, Antalya Training and Research Hospital, Antalya, Turkey
| | - Işın Üreyen
- Department of Gynecologic Oncology, Antalya Training and Research Hospital, Antalya, Turkey
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Da-Anoy A, Kang EY, Lee CH, Cheasley D, Llaurado Fernandez M, Carey MS, Cameron A, Köbel M. Molecular Surrogate Subtypes of Ovarian and Peritoneal Low-grade Serous Carcinoma. Int J Gynecol Pathol 2024:00004347-990000000-00168. [PMID: 38914014 DOI: 10.1097/pgp.0000000000001043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Low-grade serous carcinoma (LGSC) is an uncommon histotype of ovarian carcinoma, accounting for ~3% of cases. There is evidence that survival of peritoneal LGSC (pLGSC) is longer than that of ovarian LGSC (oLGSC). Key molecular alterations of LGSC have been established, including loss of CDKN2A and PR expression, MAPK pathway alterations, and loss of USP9X expression. We hypothesized that LGSC could be subclassified into clinically applicable molecular subtypes by a few surrogate tests similar to endometrioid carcinomas using a hierarchical decision tree based on the strength of the prognostic associations of the individual alterations. Our study included 71 LGSCs. Immunohistochemistry for CDKN2A, ER, PR, NF1, and USP9X and sequencing for KRAS, NRAS, and BRAF were performed. Our data showed the co-occurrence of key molecular alterations, and despite suggestive trends, hierarchical molecular subtyping did not provide significantly different stratification of patients according to survival in this cohort. We confirmed that patients diagnosed with pLGSC have a longer survival than high-stage oLGSC, with the intriguing observation that normal CDKN2A and PR status were associated with excellent survival in pLGSC. Therefore, CDKN2A and PR status might aid in the classification of indeterminate implants, where abnormal findings favor pLGSC over noninvasive implants. Molecular subtypes should be further evaluated in larger cohorts for their prognostic and potentially predictive value.
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Affiliation(s)
- Annalyn Da-Anoy
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary
| | - Eun Young Kang
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary
| | - Cheng Han Lee
- Department of Pathology and Laboratory Medicine, University of Alberta, Edmonton, Alberta
| | - Dane Cheasley
- Cancer Genetics Laboratory, Peter MacCallum Cancer Centre, Melbourne
- Sir Peter MacCallum Department of Oncology, University of Melbourne, VIC, Australia
| | - Marta Llaurado Fernandez
- Department of Obstetrics & Gynecology, Faculty of Medicine, University of British Columbia, and the Department of Clinical Research, BC Cancer, Vancouver, BC
| | - Mark S Carey
- Department of Obstetrics & Gynecology, Faculty of Medicine, University of British Columbia, and the Department of Clinical Research, BC Cancer, Vancouver, BC
| | - Anna Cameron
- Department of Obstetrics & Gynecology, Faculty of Medicine, University of British Columbia, and the Department of Clinical Research, BC Cancer, Vancouver, BC
| | - Martin Köbel
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary
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3
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Höhn AK, Forberger M, Alfaraidi M, Gilks CB, Brambs CE, Höckel M, Hoang L, Singh N, Horn LC. High concordance of molecular subtyping between pre-surgical biopsy and surgical resection specimen (matched-pair analysis) in patients with vulvar squamous cell carcinoma using p16- and p53-immunostaining. Gynecol Oncol 2024; 185:17-24. [PMID: 38342005 DOI: 10.1016/j.ygyno.2024.02.001] [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: 12/12/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 02/13/2024]
Abstract
OBJECTIVE Vulvar squamous cell carcinoma (VSCC) can be stratified into three molecular subtypes based on the immunoexpression of p16 and p53: HPV-independent p53-abnormal (p53abn) (most common, biologically aggressive), HPV-associated, with p16-overexpression (second most common, prognostically more favourable) and more recently recognised HPV-independent p53-wildtype (p53wt) (rarest subtype, prognostically intermediate). Our aim was to determine whether molecular subtypes can be reliably identified in pre-operative biopsies and whether these correspond to the subsequent vulvectomy specimen. METHODS Matched-paired pre-surgical biopsies and subsequent resection specimen of 57 patients with VSCC were analysed for the immunohistochemical expression of p16 and p53 by performing a three-tiered molecular subtyping to test the accuracy rate. RESULTS Most cases 36/57 (63.2%) belonged to the HPV-independent (p53-abn) molecular subtype, followed by HPV-associated 17/57 (29.8%) and HPV-independent (p53wt) 4/57 (7.0%). The overall accuracy rate on biopsy was 91.2% (52/57): 97.3% for p53-abnormal, 94.1% for p16-overexpression and 50% for p16-neg/p53-wt VSCC. Incorrect interpretation of immunohistochemical p53 staining pattern was the reason for discordant results in molecular subtyping in all five cases. In one case there was an underestimation of p53 pattern (wildtype instead of abnormal/aberrant) and in one case an overestimation of the p53 staining pattern (abnormal/aberrant instead of wildtype). In 3/5 there was a "double positive" staining result (p16 overexpression and abnormal/aberrant p53 staining pattern). In that cases additional molecular workup is required for correct molecular subtyping, resulting in an overall need for molecular examination of 3/57 (3.5%). CONCLUSIONS Compared to the final resections specimen, the three-tiered molecular classification of VSCC can be determined on pre-surgical biopsies with a high accuracy rate. This enables more precise surgical planning, prediction of the response to (chemo) radiation, selection of targeted therapies and planning of the optimal follow-up strategy for patients in the age of personalised medicine.
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Affiliation(s)
- Anne Kathrin Höhn
- Institute of Pathology, Division of Gynecologic Pathology, University Hospital of Leipzig, Germany.
| | - Mirjam Forberger
- Institute of Pathology, Division of Gynecologic Pathology, University Hospital of Leipzig, Germany
| | - Mona Alfaraidi
- Vancouver General Hospital, University of British Columbia, Canada; Prince Sultan Military Medical City, Riyah, Saudi Arabia
| | - C Blake Gilks
- Vancouver General Hospital, University of British Columbia, Canada
| | | | - Michael Höckel
- Leipzig School of Radical Pelvic Surgery, Division of Surgical Gynecologic Oncology, University Hospital, Leipzig, Germany
| | - Lynn Hoang
- Vancouver General Hospital, University of British Columbia, Vancouver, Canada
| | - Naveena Singh
- Vancouver General Hospital, University of British Columbia, Canada
| | - Lars-Christian Horn
- Institute of Pathology, Division of Gynecologic Pathology, University Hospital of Leipzig, Germany
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Kang EY, Terzic T, Ghatage P, Woo L, Gorringe KL, Karnezis AN, Lee CH, Köbel M. TP53 as a Diagnostic Aid in the Distinction of Ovarian Mucinous Borderline Tumors From Mucinous Carcinoma. Int J Gynecol Pathol 2024; 43:111-122. [PMID: 37406453 DOI: 10.1097/pgp.0000000000000967] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
Ovarian mucinous borderline tumors (MBTs) are clinically managed as benign neoplasms while the management of ovarian mucinous carcinomas (MC) is dependent on tumor stage. Despite the standardization of sampling of ovarian mucinous neoplasms, limited interobserver reproducibility between MBT and MC persists. Based on our recent finding that abnormal TP53 expression is associated with unfavorable outcome in MBT, we hypothesized that TP53 status might improve the reproducible distinction of MBT from MC. A virtual slide set of 85 consecutive ovarian mucinous neoplasms received at a single institution, with each case represented by 3 full sections, were reviewed by 3 pathologists in 2 iterations. The initial assessment was based solely on morphologic review, while the second iteration was performed with knowledge of TP53 status. The reproducibility of a trinary categorization (MBT, MBT with intraepithelial carcinoma [IEC], MC) significantly improved from a κ of 0.60 based on the initial morphologic assessment to a κ of 0.76 (t-test, P =0.0042) after consideration of TP53 immunohistochemistry (IHC) results. Six out of 85 patients died of disease, and in 2 of them, at least 1 pathologist assessed MBT with IEC and not MC even after integration of TP53 IHC. With the integration of TP53 IHC, substantial interobserver agreement for MBT and MC can be reached, particularly in cases with an uncertain degree of confluent growth. TP53 IHC can also be used to highlight and support the presence of IEC in MBT, however, discordances remained in 2 cases with adverse outcome.
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Tadić V, Zhang W, Brozovic A. The high-grade serous ovarian cancer metastasis and chemoresistance in 3D models. Biochim Biophys Acta Rev Cancer 2024; 1879:189052. [PMID: 38097143 DOI: 10.1016/j.bbcan.2023.189052] [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: 09/20/2023] [Revised: 12/06/2023] [Accepted: 12/06/2023] [Indexed: 12/21/2023]
Abstract
High-grade serous ovarian cancer (HGSOC) is the most frequent and aggressive type of epithelial ovarian cancer, with high recurrence rate and chemoresistance being the main issues in its clinical management. HGSOC is specifically challenging due to the metastatic dissemination via spheroids in the ascitic fluid. The HGSOC spheroids represent the invasive and chemoresistant cellular fraction, which is impossible to investigate in conventional two-dimensional (2D) monolayer cell cultures lacking critical cell-to-cell and cell-extracellular matrix interactions. Three-dimensional (3D) HGSOC cultures, where cells aggregate and exhibit relevant interactions, offer a promising in vitro model of peritoneal metastasis and multicellular drug resistance. This review summarizes recent studies of HGSOC in 3D culture conditions and highlights the role of multicellular HGSOC spheroids and ascitic environment in HGSOC metastasis and chemoresistance.
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Affiliation(s)
- Vanja Tadić
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička Str. 54, Zagreb HR-10000, Croatia
| | - Wei Zhang
- Department of Engineering Mechanics, Dalian University of Technology, Linggong Road 2, Dalian CN-116024, China
| | - Anamaria Brozovic
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička Str. 54, Zagreb HR-10000, Croatia.
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Turashvili G, Hanley K. Practical Updates and Diagnostic Challenges in Endometrial Carcinoma. Arch Pathol Lab Med 2024; 148:78-98. [PMID: 36943242 DOI: 10.5858/arpa.2022-0280-ra] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2022] [Indexed: 03/23/2023]
Abstract
CONTEXT.— Clinical management of endometrial carcinoma largely depends on the morphologic parameters ascertained based on the pathologic evaluation of surgical resection specimens. However, there are numerous controversial and nonstandardized aspects of both the macroscopic and microscopic assessment of surgical specimens, including grossing, adequate sampling, diagnosis, staging, reporting, and ancillary testing. OBJECTIVE.— To provide a comprehensive practical review of standardized grossing, key morphologic findings for reporting and staging, and diagnostic and prognostic use of ancillary testing in endometrial carcinomas. DATA SOURCES.— The existing literature, recommendations of the International Society of Gynecological Pathologists, and specialty consensus guidelines. CONCLUSIONS.— This review article summarizes important aspects of the grossing and sampling of surgical resection specimens for microscopic examination, key morphologic parameters that are required for reporting and staging, and morphologic features and immunoprofiles helpful in the differential diagnosis of low-grade and high-grade endometrial carcinomas, as well as the current status of the molecular classification of endometrial carcinoma and human epidermal growth factor receptor 2 testing in serous carcinoma. The information presented herein can be helpful in overcoming diagnostic challenges and issues related to the pathology reporting of endometrial carcinoma to practicing anatomic pathologists.
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Affiliation(s)
- Gulisa Turashvili
- From the Department of Pathology, Emory University Hospital, Atlanta, Georgia
| | - Krisztina Hanley
- From the Department of Pathology, Emory University Hospital, Atlanta, Georgia
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Makk E, Bohonyi N, Oszter A, Éles K, Tornóczky T, Tóth A, Kálmán E, Kovács K. Comparative analysis of EZH2, p16 and p53 expression in uterine carcinosarcomas. Pathol Oncol Res 2023; 29:1611547. [PMID: 38146588 PMCID: PMC10749357 DOI: 10.3389/pore.2023.1611547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 11/28/2023] [Indexed: 12/27/2023]
Abstract
Introduction: The role of p16 and p53 immunohistochemistry in the diagnosis of rare and aggressive uterine carcinosarcoma (UCS) has been well established. However, enhancer of zeste homolog 2 (EZH2), a histone methyltransferase and a member of the polycomb group family is a relatively new biomarker, with limited published data on its significance in this tumor type. The goal of this study was to examine EZH2 expression in UCS and its components, in correlation with morphological features, and p16 and p53 staining patterns. Methods: Twenty-eight UCSs were included in the study. EZH2, p16 and p53 immunoreactivity were assessed independently by two pathologists in both tumor components (epithelial and mesenchymal). EZH2 and p16 immunostains were scored semiquantitatively: based on the percentage and intensity of tumor cell staining a binary staining index ("high- or low-expressing") was calculated. The p53 staining pattern was evaluated as wild-type or aberrant (diffuse nuclear, null, or cytoplasmic expression). Statistical tests were used to evaluate the correlation between staining patterns for all three markers and the different tumor components and histotypes. Results: High EZH2 and p16 expression and aberrant p53 patterns were present in 89.3% 78.6% and 85.7% of the epithelial component and in 78.6%, 62.5% and 82.1% of the mesenchymal component, respectively. Differences among these expression rates were not found to be significant (p > 0.05). Regarding the epithelial component, aberrant p53 pattern was found to be significantly (p = 0.0474) more frequent in the serous (100%) than in endometrioid (66.6%) histotypes. Within the mesenchymal component, p53 null expression pattern occurred significantly (p = 0.0257) more frequently in heterologous sarcoma components (71.4%) compared to the homologous histotype (18.8%). Conclusion: In conclusion, EZH2, p16 and p53 seem to play a universal role in the pathogenesis of UCS; however, a distinctive pattern of p53 expression appears to exist between the serous and endometrioid carcinoma components and also between the homologous and heterologous sarcoma components.
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Affiliation(s)
- Evelin Makk
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Noémi Bohonyi
- Department of Obstretrics and Gynaecology, University of Pécs Medical School, Pécs, Hungary
| | - Angéla Oszter
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Klára Éles
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Tamás Tornóczky
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Arnold Tóth
- Department of Medical Imaging, University of Pécs Medical School, Pécs, Hungary
| | - Endre Kálmán
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Krisztina Kovács
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
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Castro P, Corredor G, Koyuncu C, Nordstrom LA, Tiji M, Leavitt T, Lewis JS, Madabhushi A, Frederick MJ, Sandulache VC. Recurrent Oropharyngeal Squamous Cell Carcinomas Maintain Anti-tumor Immunity and Multinucleation Levels Following Completion of Radiation. Head Neck Pathol 2023; 17:952-960. [PMID: 37995073 PMCID: PMC10739687 DOI: 10.1007/s12105-023-01597-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/24/2023] [Indexed: 11/24/2023]
Abstract
OBJECTIVE Oropharyngeal squamous cell carcinoma (OPSCC) recurrence is almost universally fatal. Development of effective therapeutic options requires an improved understanding of recurrent OPSCC biology. METHODS We analyzed paired primary-recurrent OPSCC from Veterans treated at the Michael E. DeBakey Veterans Affairs Medical Center between 2000 and 2020 who received curative intent radiation-based treatment (with or without chemotherapy). Patient tumors were analyzed using standard immunohistochemistry and automated imaging of infiltrating lymphocytes and multinucleated tumor cells coupled to machine learning algorithms. RESULTS Primary and recurrent tumors demonstrated high concordance via p16 and p53 immunohistochemistry, with comparable levels of multinucleation. In contrast, recurrent tumors demonstrated significantly higher levels of CD8+ tumor infiltrating lymphocytes (p<0.05) and higher levels of PD-L1 expression (p<0.05). CONCLUSION Exposure to chemo-radiation and recurrence following treatment preserves critical features of intrinsic tumor biology and the tumor immune microenvironment suggesting that novel treatment regimens may be as effective in the salvage setting as in the definitive intent setting.
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Affiliation(s)
- Patricia Castro
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Germán Corredor
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
- Louis Stokes Cleveland VA Medical Center, Cleveland, OH, USA
| | - Can Koyuncu
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Luke A Nordstrom
- Michael E. DeBakey Veterans Affairs Medical Center, ENT Section, Operative Care Line, Houston, TX, USA
| | - Michelle Tiji
- Michael E. DeBakey Veterans Affairs Medical Center, ENT Section, Operative Care Line, Houston, TX, USA
| | - Taylor Leavitt
- Bobby R. Alford Department of Otolaryngology- Head and Neck Surgery, Baylor College of Medicine, 1977 Butler Blvd. 5th Floor, Ste E5.200, Houston, TX, 77030, USA
| | - James S Lewis
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt University Medical Center, Nashville, TN, USA
| | - Anant Madabhushi
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
- Atlanta Veterans Administration Medical Center, Atlanta, GA, USA
| | - Mitchell J Frederick
- Bobby R. Alford Department of Otolaryngology- Head and Neck Surgery, Baylor College of Medicine, 1977 Butler Blvd. 5th Floor, Ste E5.200, Houston, TX, 77030, USA
| | - Vlad C Sandulache
- Michael E. DeBakey Veterans Affairs Medical Center, ENT Section, Operative Care Line, Houston, TX, USA.
- Bobby R. Alford Department of Otolaryngology- Head and Neck Surgery, Baylor College of Medicine, 1977 Butler Blvd. 5th Floor, Ste E5.200, Houston, TX, 77030, USA.
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA.
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Matsumoto N, Manrai P, Rottmann D, Wu X, Assem H, Hui P, Buza N. Correlative Assessment of p53 Immunostaining Patterns and TP53 Mutation Status by Next-Generation Sequencing in High-Grade Endometrial Carcinomas. Int J Gynecol Pathol 2023; 42:567-575. [PMID: 36730675 DOI: 10.1097/pgp.0000000000000930] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
TP53 mutations are frequently identified in the copy number-high molecular subgroup of endometrial carcinomas (ECs). P53 immunohistochemistry (IHC) is a widely used surrogate marker reflecting the mutational status of TP53 , and recent reports have shown ~95% concordance between the two methods in ECs. While these results are promising, studies evaluating the correlation between different p53 IHC staining patterns and comprehensive next-generation sequencing results are still limited. We compared the p53 IHC staining patterns, scored as wild-type, diffuse nuclear overexpression, null/complete absence, and cytoplasmic, to next-generation sequencing results reported by FoundationOneCDx in 43 high-grade ECs: 20 serous ECs, 9 mixed ECs with a serous component, 4 carcinosarcomas with a serous component, and 10 grade 3 endometrioid ECs. The concordance of p53 IHC and TP53 mutation status was 100% (43/43) overall, including 100% (33/33) concordance in tumors with a serous component and 100% (10/10) in endometrioid ECs. Among the 35 tumors with aberrant p53 expression the most commonly observed pattern was diffuse nuclear overexpression seen in 69% (24/35), followed by cytoplasmic staining in 17% (6/35), and complete absence of staining (null) in 14% (5/35) of tumors. Of the 6 tumors with cytoplasmic staining, 4 corresponded to missense mutations within the DNA binding domain (V157F in 2 tumors, and S127P and R280S, in 2 tumor each), while 2 corresponded to nonsense mutations in the tetramerization domain (p.E339*). Our results further support that p53 IHC can serve as an accurate predictor of TP53 alterations in ECs to aid the molecular-based tumor classification and the distinction between tumor histotypes, both of which play an important role in the assessment of clinical prognosis and therapeutic decision making. In addition, our data suggest, that the type and position of TP53 mutation may not directly correlate with the observed p53 IHC pattern in all tumors, and that there may be alternative mechanisms for cytoplasmic localization (other than mutations involving the nuclear localization domain), possibly due to conformational changes or posttranslational modifications of the aberrant p53 protein.
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10
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Hiller GGR, Höhn AK, Mayr D, Brambs CE, Horn LC. [Molecular classification of endometrial carcinoma-a short summary for clinical use]. PATHOLOGIE (HEIDELBERG, GERMANY) 2023; 44:392-400. [PMID: 37815668 DOI: 10.1007/s00292-023-01238-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
BACKGROUND Histopathological examination is still the backbone for the diagnosis and treatment decision making in endometrial carcinoma (EC). The binary classification of EC into type 1 (mostly endometrioid) and type 2 (mostly serous), although still helpful, showed overlapping clinical, morphological and molecular features and was not very prognostic discriminatory for all subtypes of EC. METHODS Analysing the most recent studies dealing with the molecular classification of EC and the recommendations of the German S3-guidelines for EC. RESULTS AND CONCLUSION Based on the comprehensive molecular study of The Cancer Genome Atlas Project (TCGA) four distinct molecular subtypes have been identified: EC with POLE mutation (POLEmut), with loss of mismatch repair proteins (MMR deficiency; dMMR), or with TP53 mutation (p53mut) and without any of these alterations, termed NSMP (no specific molecular profile). The molecular classification of EC presents a morphomolecular approach, based on histopathological evaluation (tumor diagnosis, subtyping, grading), immunohistochemistry (MMR, p53) and molecular analyses for POLE. The incorporation of this molecular classification is recommended for clinical use by the World Health Organisation (WHO) as well as many national guidelines and international societies. Due to the heterogeneity of NSMP-EC, which is the largest molecular group, additional research is indicated to further characterise these tumors.
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Affiliation(s)
- Grit Gesine Ruth Hiller
- Arbeitsgruppe Mamma‑, Gynäko- & Perinatalpathologie, Institut für Pathologie, Universitätsklinikum Leipzig AöR, Liebigstr. 26, 04103, Leipzig, Deutschland.
| | - Anne Kathrin Höhn
- Arbeitsgruppe Mamma‑, Gynäko- & Perinatalpathologie, Institut für Pathologie, Universitätsklinikum Leipzig AöR, Liebigstr. 26, 04103, Leipzig, Deutschland
| | - Doris Mayr
- Pathologisches Institut, Medizinische Fakultät, Ludwig-Maximilians-Universität München, München, Deutschland
- Kommission zur Erstellung der S3-Leitlinie Endometriumkarzinom, Berlin, Deutschland
| | | | - Lars-Christian Horn
- Arbeitsgruppe Mamma‑, Gynäko- & Perinatalpathologie, Institut für Pathologie, Universitätsklinikum Leipzig AöR, Liebigstr. 26, 04103, Leipzig, Deutschland
- Kommission zur Erstellung der S3-Leitlinie Endometriumkarzinom, Berlin, Deutschland
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Dundr P, Hájková N, Kendall Bártů M, Cibula D, Drozenová J, Fabian P, Fadare O, Frühauf F, Hausnerová J, Hojný J, Laco J, Lax SF, Matěj R, Méhes G, Michálková R, Němejcová K, Singh N, Stolnicu S, Švajdler M, Zima T, McCluggage WG, Stružinská I. Refined criteria for p53 expression in ovarian mucinous tumours are highly concordant with TP53 mutation status, but p53 expression/TP53 status lack prognostic significance. Pathology 2023; 55:785-791. [PMID: 37500307 DOI: 10.1016/j.pathol.2023.04.008] [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: 12/16/2022] [Revised: 04/06/2023] [Accepted: 04/30/2023] [Indexed: 07/29/2023]
Abstract
In gynecological neoplasms, immunohistochemical (IHC) expression of p53 is generally an accurate predictor of TP53 mutation status if correctly interpreted by the pathologist. However, the literature concerning cut-offs, frequency and prognostic significance of p53 staining in ovarian mucinous tumours is limited and heterogeneous. We performed an analysis of 123 primary ovarian mucinous tumours including mucinous borderline tumours (MBT), mucinous carcinomas (MC), and tumours with equivocal features between MBT and MC. We assessed p53 expression for the three recognised patterns of aberrant staining in ovarian carcinoma [overexpression ('all'), null and cytoplasmic] but using a recently suggested cut-off for aberrant overexpression in ovarian mucinous tumours (strong nuclear p53 staining in ≥12 consecutive tumour cells) and correlated the results with next generation sequencing (NGS) in all qualitatively sufficient cases (92/123). Aberrant p53 expression was present in 25/75 (33.3%) MBT, 23/33 (69.7%) MC (75% of MC with expansile invasion and 61.5% with infiltrative invasion), and 10/15 (66.7%) tumours equivocal between MBT and MC. Regarding the 92 tumours with paired IHC and mutation results, 86 showed concordant results and six cases were discordant. Three discordant MBT cases showed aberrant expression but were TP53 wild-type on sequencing. Three cases had normal p53 expression but contained a TP53 mutation. Overall, IHC predicted the TP53 mutation status with high sensitivity (94.1%) and specificity (92.7%). The accuracy of IHC was 93.5% with a positive predictive value of 94.1% and a negative predictive value of 92.7%. When comparing MC cases with wild-type TP53 versus those with TP53 mutation, there were no significant differences concerning disease-free survival, local recurrence-free survival, or metastases-free survival (p>0.05). In the MBT subgroup, there were no events for survival analyses. In conclusion, using an independent large sample set of ovarian mucinous tumours, the results of our study confirm that the suggested refined cut-off of strong nuclear p53 staining in ≥12 consecutive tumour cells reflect high accuracy, sensitivity and specificity for an underlying TP53 mutation but the TP53 mutation status has no prognostic significance in either MC or MBT.
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Affiliation(s)
- Pavel Dundr
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic.
| | - Nikola Hájková
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Michaela Kendall Bártů
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - David Cibula
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jana Drozenová
- Department of Pathology, Charles University, 3rd Faculty of Medicine, University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Pavel Fabian
- Department of Oncological Pathology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Oluwole Fadare
- Department of Pathology, University of California San Diego, San Diego, CA, USA
| | - Filip Frühauf
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jitka Hausnerová
- Department of Pathology, University Hospital Brno and Medical Faculty, Masaryk University, Brno, Czech Republic
| | - Jan Hojný
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jan Laco
- The Fingerland Department of Pathology, Charles University, Faculty of Medicine in Hradec Králové and University Hospital Hradec Králové, Czech Republic
| | - Sigurd F Lax
- Department of Pathology, General Hospital Graz II, Graz, Austria; Johannes Kepler University Linz, Austria
| | - Radoslav Matěj
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic; Department of Pathology, Charles University, 3rd Faculty of Medicine, University Hospital Kralovske Vinohrady, Prague, Czech Republic; Department of Pathology and Molecular Medicine, Third Faculty of Medicine, Charles University, Thomayer University Hospital, Prague, Czech Republic
| | - Gábor Méhes
- Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Romana Michálková
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Kristýna Němejcová
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Naveena Singh
- Department of Cellular Pathology, Barts Health NHS Trust, Blizard Institute of Core Pathology, Queen Mary University of London, London, UK
| | - Simona Stolnicu
- Department of Pathology, George E. Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Romania
| | - Marián Švajdler
- Šikl's Department of Pathology, The Faculty of Medicine and Faculty Hospital in Pilsen, Charles University, Pilsen, Czech Republic
| | - Tomáš Zima
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - W Glenn McCluggage
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, UK
| | - Ivana Stružinská
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
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12
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Castro P, Corredor G, Koyuncu C, Nordstrom LA, Tiji M, Leavitt T, Lewis JS, Madabhushi A, Frederick MJ, Sandulache VC. Recurrent oropharyngeal squamous cell carcinomas maintain anti-tumor immunity and multinucleation levels following completion of radiation. RESEARCH SQUARE 2023:rs.3.rs-3267009. [PMID: 37674722 PMCID: PMC10479446 DOI: 10.21203/rs.3.rs-3267009/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Objective Oropharyngeal squamous cell carcinoma (OPSCC) recurrence is almost universally fatal. Development of effective therapeutic options requires an improved understanding of recurrent OPSCC biology. Methods We analyzed paired primary-recurrent OPSCC from Veterans treated at the Michael E. DeBakey Veterans Affairs Medical Center between 2000 and 2020 who received curative intent radiation-based treatment (with or without chemotherapy). Patient tumors were analyzed using standard immunohistochemistry and automated imaging of infiltrating lymphocytes and multinucleated tumor cells coupled to machine learning algorithms. Results Primary and recurrent tumors demonstrated high concordance via p16 and p53 immunohistochemistry, with comparable levels of multinucleation. In contrast, recurrent tumors demonstrated significantly higher levels of CD8+ tumor infiltrating lymphocytes (p<0.05) and higher levels of PD-L1 expression (p<0.05). Conclusion Exposure to chemo-radiation and recurrence following treatment does not appear deleterious to underlying biological characteristics and anti-tumor immunity of oropharyngeal cancer, suggesting that novel treatment regimens may be as effective in the salvage setting as in the definitive intent setting.
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Affiliation(s)
| | | | - Can Koyuncu
- Georgia Institute of Technology and Emory University
| | - Luke A Nordstrom
- Operative Care Line, Michael E. DeBakey Veterans Affairs Medical Center
| | - Michelle Tiji
- Operative Care Line, Michael E. DeBakey Veterans Affairs Medical Center
| | | | | | | | | | - Vlad C Sandulache
- Operative Care Line, Michael E. DeBakey Veterans Affairs Medical Center
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13
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Xu YJ, Li R, Chen JM, Zhuang XY, Lin N, Wang LP, Zeng BW. Use of Immunohistochemical p53 Mutant-Phenotype in Diagnosis of High-Grade Dysplasia of Esophageal Squamous Epithelia. Dig Dis 2023; 41:685-694. [PMID: 37579733 DOI: 10.1159/000531331] [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: 12/07/2022] [Accepted: 05/24/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND Mild cellular atypia of esophageal squamous epithelial dysplasia has a risk of progressing to cancer that poses great confusion for pathological diagnosis. There is no research on the diagnosis and differential diagnosis of esophageal squamous dysplasia by the expression of immunohistochemical (IHC) p53. The study aims to conduct a graded diagnosis of esophageal squamous epithelial hyperplasia by combining p53 expressions and microscopic histomorphological characteristics. METHODS The study was conducted from January 2021 to January 2022 and included a total of 208 cases including 262 specimens with atypical hyperplasia or dysplasia of squamous epithelia discovered by esophageal mucosal biopsy. HE staining was used to grade the epithelial hyperplasia degree, and all cases underwent p53 IHC evaluation. RESULTS Benign lesions: we did not find any p53 IHC mutant-phenotype (0/12 cases) in 12 cases of esophagitis. We found 10 cases (10/80 cases) of p53 IHC mutant-phenotype in 80 cases of low-grade dysplasia, and 158 cases (158/170 cases) of p53 IHC mutant-phenotype of high-grade lesions in 170 cases of high-grade dysplasia and early cancer based on the χ2 test results. We found statistically significant differences in p53 IHC mutant-phenotype between the high-grade squamous epithelial lesions and benign lesions. The sensitivity and specificity of p53 in detecting high-grade squamous epithelial lesions were 92.9% and 89.1%, respectively. The positive predictive value was 94.0%, and the negative predictive value was 87.2%. CONCLUSION In this study, we found that p53 IHC had high sensitivity and specificity in detecting high-grade esophageal squamous epithelial lesions. Therefore, it has potential to be used as a routine item in pathological detection for auxiliary risk stratification of esophageal squamous epithelial lesions.
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Affiliation(s)
- Yan-Juan Xu
- Department of Pathology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Ran Li
- Department of Anesthesiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Jiang-Mu Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Xue-Yu Zhuang
- Department of Pathology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Na Lin
- Department of Pathology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Lin-Pei Wang
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Bing-Wei Zeng
- Department of Pathology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
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14
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Bellizzi AM. p53 as Exemplar Next-Generation Immunohistochemical Marker: A Molecularly Informed, Pattern-Based Approach, Methodological Considerations, and Pan-Cancer Diagnostic Applications. Appl Immunohistochem Mol Morphol 2023; 31:507-530. [PMID: 37471633 DOI: 10.1097/pai.0000000000001144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 06/22/2023] [Indexed: 07/22/2023]
Abstract
This review is based on a webinar I presented for the International Society for Immunohistochemistry and Molecular Morphology (ISIMM) in February 2022. It is intended that all ISIMM webinars will ultimately be published in AIMM as review articles. This work is also dedicated to Clive Taylor, who has deeply impacted my career. It presents a molecularly informed, pattern-based approach to p53 immunohistochemistry interpretation, methodological considerations (ie, antibody selection, optimization, validation, controls, and external quality assessment), and pan-cancer diagnostic applications, including those drawn from gastrointestinal, genitourinary, gynecological, neuroendocrine, hematologic, and neuropathology. It intends to prove the thesis statement that p53 is an exemplar next-generation immunohistochemical marker "born" ahead of its time.
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Affiliation(s)
- Andrew M Bellizzi
- Department of Pathology, University of Iowa Hospitals and Clinics and Carver College of Medicine, Iowa City, IA
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15
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Wang S, Zhou X, Niu S, Chen L, Zhang H, Chen H, Zhou F. Assessment of HER2 in Gastric-Type Endocervical Adenocarcinoma and its Prognostic Significance. Mod Pathol 2023; 36:100148. [PMID: 36841435 DOI: 10.1016/j.modpat.2023.100148] [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: 12/13/2022] [Revised: 01/30/2023] [Accepted: 02/10/2023] [Indexed: 02/27/2023]
Abstract
As the most common type of human papillomavirus-independent endocervical adenocarcinomas (ECAs), gastric-type endocervical adenocarcinomas (GEAs) account for approximately 10% of all ECAs. Although anti-HER2 therapy has been proven effective in many cancers, it has not been used in ECAs, including GEAs, which is at least partly due to the lack of a well-defined guideline. Limited available data regarding HER2 in GEAs and ECAs have considerable variations likely caused by variations in the tumor type selection, testing methods, and scoring criteria. Here, we selected 58 GEA cases to examine the HER2 status using immunohistochemistry and fluorescent in situ hybridization and investigate the prognostic value and their association with other known or potential prognostic factors. When strong complete or lateral/basolateral membranous reactivity in ≥10% tumor cells was used to define HER2 positivity, relatively high prevalence of HER2 overexpression (10/58[17.2%]) and amplification (9/58 [15.5%]), as well as high immunohistochemistry-fluorescent in situ hybridization concordance rate (9/10 [90%]) was found in GEAs. A lateral/basolateral staining pattern ("U-shaped") was observed, at least focally, in most of HER2-positive (3+) and equivocal (2+) tumors. Notably, considerable heterogeneity of HER2 expression was observed in HER2 positive and equivocal cases (80.0% and 83.3%, respectively). HER2 overexpression and amplification were associated with worse progression-free survival (P = .047 and P = .032, respectively). Programmed death-ligand 1 expression was associated with worse progression-free survival (P = .032), whereas mutant-type p53 demonstrated no prognostic significance. Our work laid a solid foundation for the eventual development of a future standard HER2 testing guideline for GEAs.
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Affiliation(s)
- Su Wang
- Department of Pathology, Zhejiang University School of Medicine Women's Hospital, Hangzhou, Zhejiang Province, China
| | - Xin Zhou
- Department of Pathology, Zhejiang University School of Medicine Women's Hospital, Hangzhou, Zhejiang Province, China
| | - Shuang Niu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Pathology, Parkland Hospital, Dallas, Texas
| | - Lili Chen
- Department of Gynecology, Zhejiang University School of Medicine Women's Hospital, Hangzhou, Zhejiang Province, China
| | - Huijuan Zhang
- Departments of Pathology, International Peace Maternity and Child Health Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Hao Chen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas; Department of Pathology, Parkland Hospital, Dallas, Texas.
| | - Feng Zhou
- Department of Pathology, Zhejiang University School of Medicine Women's Hospital, Hangzhou, Zhejiang Province, China.
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16
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Moon CM, Lee YY, Kim DY, Yoon W, Baek BH, Park JH, Heo SH, Shin SS, Kim SK. Preoperative prediction of Ki-67 and p53 status in meningioma using a multiparametric MRI-based clinical-radiomic model. Front Oncol 2023; 13:1138069. [PMID: 37287921 PMCID: PMC10241997 DOI: 10.3389/fonc.2023.1138069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/08/2023] [Indexed: 06/09/2023] Open
Abstract
Purpose To investigate the utility of preoperative multiparametric magnetic resonance imaging (mpMRI)-based clinical-radiomic analysis combined with machine learning (ML) algorithms in predicting the expression of the Ki-67 proliferative index and p53 tumor suppressor protein in patients with meningioma. Methods This multicenter retrospective study included 483 and 93 patients from two centers. The Ki-67 index was classified into high (Ki-67≥5%) and low (Ki-67<5%)-expressed groups, and the p53 index was classified into positive (p53≥5%) and negative (p53<5%)-expressed groups. Clinical and radiological features were analyzed using univariate and multivariate statistical analyses. Six ML models were performed with different types of classifiers to predict Ki-67 and p53 status. Results In the multivariate analysis, larger tumor volumes (p<0.001), irregular tumor margin (p<0.001), and unclear tumor-brain interface (p<0.001) were independently associated with a high Ki-67 status, whereas the presence of both necrosis (p=0.003) and the dural tail sign (p=0.026) were independently associated with a positive p53 status. A relatively better performance was yielded from the model constructed by combined clinical and radiological features. The area under the curve (AUC) and accuracy of high Ki-67 were 0.820 and 0.867 in the internal test, and 0.666 and 0.773 in the external test, respectively. Regarding p53 positivity, the AUC and accuracy were 0.858 and 0.857 in the internal test, and 0.684 and 0.718 in the external test. Conclusion The present study developed clinical-radiomic ML models to non-invasively predict Ki-67 and p53 expression in meningioma using mpMRI features, and provides a novel non-invasive strategy for assessing cell proliferation.
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Affiliation(s)
- Chung-Man Moon
- Research Institute of Medical Sciences, Chonnam National University, Gwangju, Republic of Korea
| | - Yun Young Lee
- Department of Radiology, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Doo-Young Kim
- Department of Artificial Intelligence Convergence, Chonnam National University, Gwangju, Republic of Korea
| | - Woong Yoon
- Department of Radiology, Chonnam National University Hospital, Gwangju, Republic of Korea
- Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Byung Hyun Baek
- Department of Radiology, Chonnam National University Hospital, Gwangju, Republic of Korea
- Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Jae-Hyun Park
- Department of Radiology, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Suk-Hee Heo
- Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea
| | - Sang-Soo Shin
- Department of Radiology, Chonnam National University Hospital, Gwangju, Republic of Korea
- Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seul Kee Kim
- Department of Radiology, Chonnam National University Medical School, Gwangju, Republic of Korea
- Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea
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17
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Boldrin E, Piano MA, Bernaudo F, Alfieri R, Biasin MR, Montagner IM, Volpato A, Mattara G, Lamacchia F, Magni G, Rosato A, Scapinello A, Pilati P, Curtarello M. p53/ TP53 Status Assessment in Gastroesophageal Adenocarcinoma. Cancers (Basel) 2023; 15:2783. [PMID: 37345120 DOI: 10.3390/cancers15102783] [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: 03/31/2023] [Revised: 05/05/2023] [Accepted: 05/11/2023] [Indexed: 06/23/2023] Open
Abstract
Chromosomal instability (CIN) is very frequent in gastroesophageal adenocarcinoma (GEA) and it is characterized by TP53 deletions/mutations resulting in p53 nuclear accumulation, as revealed by immunohistochemistry (IHC), which considers the cases with "high" staining levels to be positive. Aiming to improve aberrant TP53 detection, droplet digital PCR (ddPCR) was used to evaluate TP53 deletion in formalin-fixed, paraffin-embedded DNA (FFPE-DNA) and cell-free DNA (cfDNA). To further investigate the mutational TP53 profile, next-generation sequencing (NGS) was performed in a subset of FFPE samples. After combining "low" and "high" IHC staining level groups, the proportion of deletion events was significantly higher compared to the "intermediate" group (72.9% vs. 47.5%, p-value = 0.002). The ddPCR TP53 deletion assay was feasible for cfDNA but only had good agreement (72.7%, Cohen's kappa = 0.48) with the assay performed with FFPE-DNA of the "low-level" group. NGS analysis confirmed that, in the "low-level" group, a high percentage (66.7%) of cases were aberrant, with disruptive mutations that probably led to p53 loss. Data suggested that p53 IHC alone underestimates the CIN phenotype in GEA and that molecular analysis in both solid and liquid biopsies could be integrated with it; in particular, in cases of completely negative staining.
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Affiliation(s)
- Elisa Boldrin
- Immunology and Molecular Oncology Diagnostics Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Maria Assunta Piano
- Immunology and Molecular Oncology Diagnostics Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Francesco Bernaudo
- Immunology and Molecular Oncology Diagnostics Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Rita Alfieri
- Surgical Oncology of Digestive Tract Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Maria Raffaella Biasin
- Anatomy and Pathological Histology Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Isabella Monia Montagner
- Anatomy and Pathological Histology Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Alice Volpato
- Anatomy and Pathological Histology Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Genny Mattara
- Surgical Oncology of Digestive Tract Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Francesco Lamacchia
- Surgical Oncology of Digestive Tract Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
- Department of Surgery Oncology and Gastroenterology, University of Padova, 35122 Padova, Italy
| | - Giovanna Magni
- Clinical Research Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Antonio Rosato
- Immunology and Molecular Oncology Diagnostics Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
- Department of Surgery Oncology and Gastroenterology, University of Padova, 35122 Padova, Italy
| | - Antonio Scapinello
- Anatomy and Pathological Histology Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Pierluigi Pilati
- Surgical Oncology of Digestive Tract Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Matteo Curtarello
- Immunology and Molecular Oncology Diagnostics Unit, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
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18
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Köbel M, Kang E, Weir A, Rambau PF, Lee C, Nelson GS, Ghatage P, Meagher NS, Riggan MJ, Alsop J, Anglesio MS, Beckmann MW, Bisinotto C, Boisen M, Boros J, Brand AH, Brooks‐Wilson A, Carney ME, Coulson P, Courtney‐Brooks M, Cushing‐Haugen KL, Cybulski C, Deen S, El‐Bahrawy MA, Elishaev E, Erber R, Fereday S, Fischer A, Gayther SA, Barquin‐Garcia A, Gentry‐Maharaj A, Gilks CB, Gronwald H, Grube M, Harnett PR, Harris HR, Hartkopf AD, Hartmann A, Hein A, Hendley J, Hernandez BY, Huang Y, Jakubowska A, Jimenez‐Linan M, Jones ME, Kennedy CJ, Kluz T, Koziak JM, Lesnock J, Lester J, Lubiński J, Longacre TA, Lycke M, Mateoiu C, McCauley BM, McGuire V, Ney B, Olawaiye A, Orsulic S, Osorio A, Paz‐Ares L, Ramón y Cajal T, Rothstein JH, Ruebner M, Schoemaker MJ, Shah M, Sharma R, Sherman ME, Shvetsov YB, Singh N, Steed H, Storr SJ, Talhouk A, Traficante N, Wang C, Whittemore AS, Widschwendter M, Wilkens LR, Winham SJ, Benitez J, Berchuck A, Bowtell DD, Candido dos Reis FJ, Campbell I, Cook LS, DeFazio A, Doherty JA, Fasching PA, Fortner RT, García MJ, Goodman MT, Goode EL, Gronwald J, Huntsman DG, Karlan BY, Kelemen LE, Kommoss S, Le ND, Martin SG, Menon U, Modugno F, Pharoah PDP, Schildkraut JM, Sieh W, Staebler A, Sundfeldt K, Swerdlow AJ, Ramus SJ, Brenton JD. p53 and ovarian carcinoma survival: an Ovarian Tumor Tissue Analysis consortium study. J Pathol Clin Res 2023; 9:208-222. [PMID: 36948887 PMCID: PMC10073933 DOI: 10.1002/cjp2.311] [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: 11/23/2022] [Revised: 01/06/2023] [Accepted: 01/11/2023] [Indexed: 03/24/2023]
Abstract
Our objective was to test whether p53 expression status is associated with survival for women diagnosed with the most common ovarian carcinoma histotypes (high-grade serous carcinoma [HGSC], endometrioid carcinoma [EC], and clear cell carcinoma [CCC]) using a large multi-institutional cohort from the Ovarian Tumor Tissue Analysis (OTTA) consortium. p53 expression was assessed on 6,678 cases represented on tissue microarrays from 25 participating OTTA study sites using a previously validated immunohistochemical (IHC) assay as a surrogate for the presence and functional effect of TP53 mutations. Three abnormal expression patterns (overexpression, complete absence, and cytoplasmic) and the normal (wild type) pattern were recorded. Survival analyses were performed by histotype. The frequency of abnormal p53 expression was 93.4% (4,630/4,957) in HGSC compared to 11.9% (116/973) in EC and 11.5% (86/748) in CCC. In HGSC, there were no differences in overall survival across the abnormal p53 expression patterns. However, in EC and CCC, abnormal p53 expression was associated with an increased risk of death for women diagnosed with EC in multivariate analysis compared to normal p53 as the reference (hazard ratio [HR] = 2.18, 95% confidence interval [CI] 1.36-3.47, p = 0.0011) and with CCC (HR = 1.57, 95% CI 1.11-2.22, p = 0.012). Abnormal p53 was also associated with shorter overall survival in The International Federation of Gynecology and Obstetrics stage I/II EC and CCC. Our study provides further evidence that functional groups of TP53 mutations assessed by abnormal surrogate p53 IHC patterns are not associated with survival in HGSC. In contrast, we validate that abnormal p53 IHC is a strong independent prognostic marker for EC and demonstrate for the first time an independent prognostic association of abnormal p53 IHC with overall survival in patients with CCC.
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Affiliation(s)
- Martin Köbel
- Department of Pathology and Laboratory MedicineUniversity of Calgary, Foothills Medical CenterCalgaryABCanada
| | - Eun‐Young Kang
- Department of Pathology and Laboratory MedicineUniversity of Calgary, Foothills Medical CenterCalgaryABCanada
| | - Ashley Weir
- School of Clinical MedicineUNSW Medicine and Health, University of NSW SydneySydneyNew South WalesAustralia
- Adult Cancer Program, Lowy Cancer Research CentreUniversity of NSW SydneySydneyNew South WalesAustralia
- The Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
| | - Peter F Rambau
- Department of Pathology and Laboratory MedicineUniversity of Calgary, Foothills Medical CenterCalgaryABCanada
- Pathology DepartmentCatholic University of Health and Allied Sciences‐BugandoMwanzaTanzania
| | - Cheng‐Han Lee
- Department of Pathology and Laboratory MedicineUniversity of AlbertaEdmontonABCanada
| | - Gregg S Nelson
- Department of Oncology, Division of Gynecologic Oncology, Cumming School of MedicineUniversity of CalgaryCalgaryABCanada
| | - Prafull Ghatage
- Department of Oncology, Division of Gynecologic Oncology, Cumming School of MedicineUniversity of CalgaryCalgaryABCanada
| | - Nicola S Meagher
- School of Clinical MedicineUNSW Medicine and Health, University of NSW SydneySydneyNew South WalesAustralia
- The Daffodil CentreThe University of Sydney, a Joint Venture with Cancer Council NSWSydneyNew South WalesAustralia
| | - Marjorie J Riggan
- Department of Obstetrics and Gynecology, Division of Gynecologic OncologyDuke University Medical CenterDurhamNCUSA
| | - Jennifer Alsop
- Centre for Cancer Genetic Epidemiology, Department of OncologyUniversity of CambridgeCambridgeUK
| | - Michael S Anglesio
- Department of Obstetrics and GynecologyUniversity of British ColumbiaVancouverBCCanada
- British Columbia's Gynecological Cancer Research Team (OVCARE)University of British Columbia, BC Cancer, and Vancouver General HospitalVancouverBCCanada
| | - Matthias W Beckmann
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen‐EMNFriedrich‐Alexander University Erlangen‐Nuremberg, University Hospital ErlangenErlangenGermany
| | - Christiani Bisinotto
- Department of Gynecology and Obstetrics, Ribeirão Preto Medical SchoolUniversity of São PauloRibeirão PretoBrazil
| | - Michelle Boisen
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive SciencesUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Jessica Boros
- Centre for Cancer ResearchThe Westmead Institute for Medical Research, University of SydneySydneyNew South WalesAustralia
- Department of Gynaecological OncologyWestmead HospitalSydneyNew South WalesAustralia
- Discipline of Obstetrics and GynaecologyThe University of SydneySydneyNew South WalesAustralia
| | - Alison H Brand
- Department of Gynaecological OncologyWestmead HospitalSydneyNew South WalesAustralia
- Discipline of Obstetrics and GynaecologyThe University of SydneySydneyNew South WalesAustralia
| | | | - Michael E Carney
- Department of Obstetrics and Gynecology, John A. Burns School of MedicineUniversity of HawaiiHonoluluHIUSA
| | - Penny Coulson
- Division of Genetics and EpidemiologyThe Institute of Cancer ResearchLondonUK
| | - Madeleine Courtney‐Brooks
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive SciencesUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Kara L Cushing‐Haugen
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research CenterSeattleWAUSA
| | - Cezary Cybulski
- Department of Genetics and Pathology, International Hereditary Cancer CenterPomeranian Medical UniversitySzczecinPoland
| | - Suha Deen
- Department of HistopathologyNottingham University Hospitals NHS Trust, Queen's Medical CentreNottinghamUK
| | - Mona A El‐Bahrawy
- Department of Metabolism, Digestion and ReproductionImperial College London, Hammersmith HospitalLondonUK
| | - Esther Elishaev
- Department of PathologyUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Ramona Erber
- Institute of Pathology, Comprehensive Cancer Center Erlangen‐EMN, Friedrich‐Alexander University Erlangen‐Nuremberg, University Hospital ErlangenErlangenGermany
| | - Sian Fereday
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
- Sir Peter MacCallum Department of OncologyThe University of MelbourneParkvilleVictoriaAustralia
| | - AOCS Group
- Centre for Cancer ResearchThe Westmead Institute for Medical Research, University of SydneySydneyNew South WalesAustralia
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
- QIMR Berghofer Medical Research InstituteBrisbaneQueenslandAustralia
| | - Anna Fischer
- Institute of Pathology and Neuropathology, Tuebingen University HospitalTuebingenGermany
| | - Simon A Gayther
- Center for Bioinformatics and Functional Genomics and the Cedars Sinai Genomics Core, Cedars‐Sinai Medical CenterLos AngelesCAUSA
| | | | - Aleksandra Gentry‐Maharaj
- MRC Clinical Trials UnitInstitute of Clinical Trials & Methodology, University College LondonLondonUK
| | - C Blake Gilks
- Department of Pathology and Laboratory MedicineUniversity of British ColumbiaVancouverBCCanada
| | - Helena Gronwald
- Department of Propaedeutics, Physical Diagnostics and Dental PhysiotherapyPomeranian Medical UniversitySzczecinPoland
| | - Marcel Grube
- Department of Women's HealthTuebingen University HospitalTuebingenGermany
| | - Paul R Harnett
- Discipline of Obstetrics and GynaecologyThe University of SydneySydneyNew South WalesAustralia
- Crown Princess Mary Cancer CentreWestmead HospitalSydneyNew South WalesAustralia
| | - Holly R Harris
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research CenterSeattleWAUSA
- Department of EpidemiologyUniversity of WashingtonSeattleWAUSA
| | - Andreas D Hartkopf
- Department of Women's HealthTuebingen University HospitalTuebingenGermany
- Department of Gynecology and ObstetricsUniversity Hospital of UlmUlmGermany
| | - Arndt Hartmann
- Institute of Pathology, Comprehensive Cancer Center Erlangen‐EMN, Friedrich‐Alexander University Erlangen‐Nuremberg, University Hospital ErlangenErlangenGermany
| | - Alexander Hein
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen‐EMNFriedrich‐Alexander University Erlangen‐Nuremberg, University Hospital ErlangenErlangenGermany
| | - Joy Hendley
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
| | - Brenda Y Hernandez
- Cancer Epidemiology ProgramUniversity of Hawaii Cancer CenterHonoluluHIUSA
| | - Yajue Huang
- Department of Laboratory Medicine and Pathology, Mayo ClinicRochesterMNUSA
| | - Anna Jakubowska
- Department of Genetics and Pathology, International Hereditary Cancer CenterPomeranian Medical UniversitySzczecinPoland
- Independent Laboratory of Molecular Biology and Genetic DiagnosticsPomeranian Medical UniversitySzczecinPoland
| | | | - Michael E Jones
- Division of Genetics and EpidemiologyThe Institute of Cancer ResearchLondonUK
| | - Catherine J Kennedy
- Centre for Cancer ResearchThe Westmead Institute for Medical Research, University of SydneySydneyNew South WalesAustralia
- Department of Gynaecological OncologyWestmead HospitalSydneyNew South WalesAustralia
- Discipline of Obstetrics and GynaecologyThe University of SydneySydneyNew South WalesAustralia
| | - Tomasz Kluz
- Department of Gynecology and ObstetricsInstitute of Medical Sciences, Medical College of Rzeszow UniversityRzeszówPoland
| | | | - Jaime Lesnock
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive SciencesUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Jenny Lester
- David Geffen School of Medicine, Department of Obstetrics and GynecologyUniversity of California at Los AngelesLos AngelesCAUSA
| | - Jan Lubiński
- Department of Genetics and Pathology, International Hereditary Cancer CenterPomeranian Medical UniversitySzczecinPoland
| | - Teri A Longacre
- Department of PathologyStanford University School of MedicineStanfordCAUSA
| | - Maria Lycke
- Department of Obstetrics and GynecologyInstitute of Clinical Science, Sahlgrenska University Hospital, University of GothenburgGothenburgSweden
| | | | - Bryan M McCauley
- Department of Quantitative Health Sciences, Division of Epidemiology, Mayo ClinicRochesterMNUSA
| | - Valerie McGuire
- Department of Epidemiology and Population HealthStanford University School of MedicineStanfordCAUSA
| | - Britta Ney
- Institute of Pathology and Neuropathology, Tuebingen University HospitalTuebingenGermany
| | - Alexander Olawaiye
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive SciencesUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Sandra Orsulic
- David Geffen School of Medicine, Department of Obstetrics and GynecologyUniversity of California at Los AngelesLos AngelesCAUSA
| | - Ana Osorio
- Genetics Service, Fundación Jiménez DíazMadridSpain
- Centre for Biomedical Network Research on Rare Diseases (CIBERER)Instituto de Salud Carlos IIIMadridSpain
| | - Luis Paz‐Ares
- H12O‐CNIO Lung Cancer Clinical Research Unit, Spanish National Cancer Research Centre (CNIO)MadridSpain
- Oncology DepartmentHospital Universitario 12 de OctubreMadridSpain
| | | | - Joseph H Rothstein
- Department of Genetics and Genomic SciencesIcahn School of Medicine at Mount SinaiNew YorkNYUSA
- Department of Population Health Science and PolicyIcahn School of Medicine at Mount SinaiNew YorkNYUSA
| | - Matthias Ruebner
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen‐EMNFriedrich‐Alexander University Erlangen‐Nuremberg, University Hospital ErlangenErlangenGermany
| | - Minouk J Schoemaker
- Division of Genetics and EpidemiologyThe Institute of Cancer ResearchLondonUK
| | - Mitul Shah
- Centre for Cancer Genetic Epidemiology, Department of OncologyUniversity of CambridgeCambridgeUK
| | - Raghwa Sharma
- Tissue Pathology and Diagnostic OncologyWestmead HospitalSydneyNew South WalesAustralia
| | - Mark E Sherman
- Department of Health Sciences Research, Mayo ClinicJacksonvilleFLUSA
| | - Yurii B Shvetsov
- Cancer Epidemiology ProgramUniversity of Hawaii Cancer CenterHonoluluHIUSA
| | - Naveena Singh
- Department of Pathology and Laboratory MedicineUniversity of British ColumbiaVancouverBCCanada
| | - Helen Steed
- Division of Gynecologic Oncology, Department of Obstetrics and GynecologyUniversity of AlbertaEdmontonABCanada
- Section of Gynecologic Oncology Surgery, North Zone, Alberta Health ServicesEdmontonABCanada
| | - Sarah J Storr
- Nottingham Breast Cancer Research CentreBiodiscovery Institute, University of NottinghamNottinghamUK
| | - Aline Talhouk
- Department of Obstetrics and GynecologyUniversity of British ColumbiaVancouverBCCanada
- British Columbia's Gynecological Cancer Research Team (OVCARE)University of British Columbia, BC Cancer, and Vancouver General HospitalVancouverBCCanada
| | - Nadia Traficante
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
- Sir Peter MacCallum Department of OncologyThe University of MelbourneParkvilleVictoriaAustralia
| | - Chen Wang
- Department of Quantitative Health Sciences, Division of Computational Biology, Mayo ClinicRochesterMNUSA
| | - Alice S Whittemore
- Department of Epidemiology and Population HealthStanford University School of MedicineStanfordCAUSA
- Department of Biomedical Data ScienceStanford University School of MedicineStanfordCAUSA
| | | | - Lynne R Wilkens
- Cancer Epidemiology ProgramUniversity of Hawaii Cancer CenterHonoluluHIUSA
| | - Stacey J Winham
- Department of Quantitative Health Sciences, Division of Computational Biology, Mayo ClinicRochesterMNUSA
| | - Javier Benitez
- Centre for Biomedical Network Research on Rare Diseases (CIBERER)Instituto de Salud Carlos IIIMadridSpain
- Human Genetics Group, Spanish National Cancer Research Centre (CNIO)MadridSpain
| | - Andrew Berchuck
- Department of Obstetrics and Gynecology, Division of Gynecologic OncologyDuke University Medical CenterDurhamNCUSA
| | - David D Bowtell
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
- Sir Peter MacCallum Department of OncologyThe University of MelbourneParkvilleVictoriaAustralia
| | - Francisco J Candido dos Reis
- Department of Gynecology and Obstetrics, Ribeirão Preto Medical SchoolUniversity of São PauloRibeirão PretoBrazil
| | - Ian Campbell
- Peter MacCallum Cancer CentreMelbourneVictoriaAustralia
- Sir Peter MacCallum Department of OncologyThe University of MelbourneParkvilleVictoriaAustralia
| | - Linda S Cook
- Epidemiology, School of Public HealthUniversity of ColoradoAuroraCOUSA
- Community Health Sciences, University of CalgaryCalgaryABCanada
| | - Anna DeFazio
- The Daffodil CentreThe University of Sydney, a Joint Venture with Cancer Council NSWSydneyNew South WalesAustralia
- Centre for Cancer ResearchThe Westmead Institute for Medical Research, University of SydneySydneyNew South WalesAustralia
- Department of Gynaecological OncologyWestmead HospitalSydneyNew South WalesAustralia
- Discipline of Obstetrics and GynaecologyThe University of SydneySydneyNew South WalesAustralia
| | - Jennifer A Doherty
- Huntsman Cancer Institute, Department of Population Health SciencesUniversity of UtahSalt Lake CityUTUSA
| | - Peter A Fasching
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen‐EMNFriedrich‐Alexander University Erlangen‐Nuremberg, University Hospital ErlangenErlangenGermany
| | - Renée T Fortner
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ)HeidelbergGermany
- Department of Research, Cancer Registry of NorwayOsloNorway
| | - María J García
- Computational Oncology Group, Structural Biology Programme, Spanish National Cancer Research Centre (CNIO)MadridSpain
| | - Marc T Goodman
- Cancer Prevention and Control Program, Cedars‐Sinai Cancer, Cedars‐Sinai Medical CenterLos AngelesCAUSA
| | - Ellen L Goode
- Department of Quantitative Health Sciences, Division of Epidemiology, Mayo ClinicRochesterMNUSA
| | - Jacek Gronwald
- Department of Genetics and Pathology, International Hereditary Cancer CenterPomeranian Medical UniversitySzczecinPoland
| | - David G Huntsman
- Department of Obstetrics and GynecologyUniversity of British ColumbiaVancouverBCCanada
- Department of Molecular Oncology, BC Cancer Research CentreVancouverBCCanada
| | - Beth Y Karlan
- David Geffen School of Medicine, Department of Obstetrics and GynecologyUniversity of California at Los AngelesLos AngelesCAUSA
| | - Linda E Kelemen
- Division of Acute Disease Epidemiology, South Carolina Department of Health & Environmental ControlColumbiaSCUSA
| | - Stefan Kommoss
- Department of Women's HealthTuebingen University HospitalTuebingenGermany
| | - Nhu D Le
- Cancer Control Research, BC Cancer AgencyVancouverBCCanada
| | - Stewart G Martin
- Nottingham Breast Cancer Research CentreBiodiscovery Institute, University of NottinghamNottinghamUK
| | - Usha Menon
- MRC Clinical Trials UnitInstitute of Clinical Trials & Methodology, University College LondonLondonUK
| | - Francesmary Modugno
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive SciencesUniversity of Pittsburgh School of MedicinePittsburghPAUSA
- Department of EpidemiologyUniversity of Pittsburgh School of Public HealthPittsburghPAUSA
- Women's Cancer Research CenterMagee‐Womens Research Institute and Hillman Cancer CenterPittsburghPAUSA
| | - Paul DP Pharoah
- Centre for Cancer Genetic Epidemiology, Department of OncologyUniversity of CambridgeCambridgeUK
- Department of Computational Biomedicine, Cedars‐Sinai Medical CenterWest HollywoodCAUSA
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary CareUniversity of CambridgeCambridgeUK
| | - Joellen M Schildkraut
- Department of Epidemiology, Rollins School of Public HealthEmory UniversityAtlantaGAUSA
| | - Weiva Sieh
- Department of Genetics and Genomic SciencesIcahn School of Medicine at Mount SinaiNew YorkNYUSA
- Department of Population Health Science and PolicyIcahn School of Medicine at Mount SinaiNew YorkNYUSA
| | - Annette Staebler
- Institute of Pathology and Neuropathology, Tuebingen University HospitalTuebingenGermany
| | - Karin Sundfeldt
- Department of Obstetrics and Gynecology, Institute of Clinical ScienceSahlgrenska Center for Cancer Research, University of GothenburgGothenburgSweden
| | - Anthony J Swerdlow
- Division of Genetics and EpidemiologyThe Institute of Cancer ResearchLondonUK
- Division of Breast Cancer ResearchThe Institute of Cancer ResearchLondonUK
| | - Susan J Ramus
- School of Clinical MedicineUNSW Medicine and Health, University of NSW SydneySydneyNew South WalesAustralia
- Adult Cancer Program, Lowy Cancer Research CentreUniversity of NSW SydneySydneyNew South WalesAustralia
| | - James D Brenton
- Cancer Research UK Cambridge Institute, University of CambridgeCambridgeUK
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Webb F, Morey A, Mahler-Hinder C, Georgousopoulou E, Koo R, Pati N, Talaulikar D. Comprehensive FISH testing using FFPE tissue microarray of primary lymph node tissue identifies secondary cytogenetic abnormalities in Mantle Cell Lymphoma. Cancer Genet 2023; 274-275:75-83. [PMID: 37094546 DOI: 10.1016/j.cancergen.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 04/07/2023] [Accepted: 04/14/2023] [Indexed: 04/26/2023]
Abstract
INTRODUCTION Mantle Cell Lymphoma (MCL), is characterised by the reciprocal translocation t(11;14) resulting in CCND1-IGH gene fusion and subsequent upregulation of the CCND1 gene. Rearrangements of MYC and losses of CDKN2A and TP53 have been identified as biomarkers informing prognostic and potentially therapeutic information however these are not routinely assessed in MCL investigation. We aimed to identify additional cytogenetic changes using fluorescence in situ hybridisation (FISH) on formalin fixed paraffin embedded (FFPE) primary lymph node tissue microarrays in a cohort of 28 patients diagnosed with MCL between 2004 and 2019. FISH results were compared with corresponding immunohistochemistry (IHC) biomarkers to determine if IHC was a reliable screening tool to direct FISH testing. METHOD FFPE lymph node tissue samples were constructed into tissue microarrays (TMA) which were stained with 7 immunohistochemical biomarkers: Cyclin D1, c-Myc, p16, ATM, p53, Bcl-6 and Bcl-2. The same TMAs were hybridised with FISH probes for the corresponding genes; CCND1-IGH, MYC, CDKN2A, ATM, TP53, BCL6 and BCL2. FISH and the corresponding IHC biomarkers were analysed to determine if secondary cytogenetic changes could be identified and if IHC could be used as a reliable, inexpensive predictor of FISH abnormalities to potentially direct FISH testing. RESULTS CCND1-IGH fusion was detected in 27/28 (96%) of samples. Additional cytogenetic changes were identified by FISH in 15/28 (54%) of samples. Two additional abnormalities were detected in 2/28 (7%) samples. Cyclin D1 IHC overexpression was an excellent predictor of CCND1-IGH fusion. MYC and ATM IHC were useful screening tests to direct FISH testing and identified cases with poor prognostic features including blastoid change. IHC did not show clear concordance with FISH for other biomarkers. CONCLUSION FISH using FFPE primary lymph node tissue can detect secondary cytogenetic abnormalities in patients with MCL which are associated with an inferior prognosis. An expanded FISH panel including MYC, CDKN2A, TP53 and ATM should be considered in cases where anomalous IHC expression or is seen for these markers or if the patient appears to have the blastoid variant of the disease.
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Affiliation(s)
- Fiona Webb
- Department of Diagnostic Genomics, ACT Pathology, Canberra Health Services, Canberra, Australia.
| | - Adrienne Morey
- Department of Anatomical Pathology, ACT Pathology, Canberra Health Services, Canberra, Australia; Australian National University, Canberra, Australia
| | | | | | - RayMun Koo
- Haematology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Nalini Pati
- Department of Haematology, ACT Pathology, Canberra Health Services, Canberra, Australia
| | - Dipti Talaulikar
- Department of Diagnostic Genomics, ACT Pathology, Canberra Health Services, Canberra, Australia; Australian National University, Canberra, Australia; Department of Haematology, ACT Pathology, Canberra Health Services, Canberra, Australia
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20
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To NH, Gabelle-Flandin I, Luong TMH, Loganadane G, Ouidir N, Boukhobza C, Grellier N, Verry C, Thiolat A, Cohen JL, Radosevic-Robin N, Belkacemi Y. Pathologic Response to Neoadjuvant Sequential Chemoradiation Therapy in Locally Advanced Breast Cancer: Preliminary, Translational Results from the French Neo-APBI-01 Trial. Cancers (Basel) 2023; 15:cancers15072030. [PMID: 37046691 PMCID: PMC10092968 DOI: 10.3390/cancers15072030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/22/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
Background: Radiation therapy (RT), a novel approach to boost the anticancer immune response, has been progressively evaluated in the neoadjuvant setting in breast cancer (BC). Purpose: We aimed to evaluate immunity-related indicators of response to neoadjuvant chemoradiation therapy (NACRT) in BC for better treatment personalization. Patients and Methods: We analyzed data of the first 42 patients included in the randomized phase 2 Neo-APBI-01 trial comparing standard neoadjuvant chemotherapy (NACT) and NACRT regimen in locally advanced triple-negative (TN) and luminal B (LB) subtype BC. Clinicopathological parameters, blood counts and the derived parameters, total tumor-infiltrating lymphocytes (TILs) and their subpopulation, as well as TP53 mutation status, were assessed as predictors of response. Results: Twenty-one patients were equally assigned to each group. The pathologic complete response (pCR) was 33% and 38% in the NACT and NACRT groups, respectively, with a dose-response effect. Only one LB tumor reached pCR after NACRT. Numerous parameters associated with response were identified, which differed according to the assigned treatment. In the NACRT group, baseline hemoglobin of ≥13 g/dL and body mass index of <26 were strongly associated with pCR. Higher baseline neutrophils-to-lymphocytes ratio, total TILs, and T-effector cell counts were favorable for pCR. Conclusion: This preliminary analysis identified LB and low-TIL tumors as poor responders to the NACRT protocol, which delivered RT after several cycles of chemotherapy. These findings will allow for amending the selection of patients for the trial and help better design future trials of NACRT in BC.
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21
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Uterine Inflammatory Myofibroblastic Tumors: Proposed Risk Stratification Model Using Integrated Clinicopathologic and Molecular Analysis. Am J Surg Pathol 2023; 47:157-171. [PMID: 36344483 DOI: 10.1097/pas.0000000000001987] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Inflammatory myofibroblastic tumor (IMT) of the uterus is a rare mesenchymal tumor with largely benign behavior; however, a small subset demonstrate aggressive behavior. While clinicopathologic features have been previously associated with aggressive behavior, these reports are based on small series, and these features are imperfect predictors of clinical behavior. IMTs are most commonly driven by ALK fusions, with additional pathogenic molecular alterations being reported only in rare examples of extrauterine IMTs. In this study, a series of 11 uterine IMTs, 5 of which demonstrated aggressive behavior, were evaluated for clinicopathologic variables and additionally subjected to capture-based next-generation sequencing with or without whole-transcriptome RNA sequencing. In the 6 IMTs without aggressive behavior, ALK fusions were the sole pathogenic alteration. In contrast, all 5 aggressive IMTs harbored pathogenic molecular alterations and numerous copy number changes in addition to ALK fusions, with the majority of the additional alterations present in the primary tumors. We combined our series with cases previously reported in the literature and performed statistical analyses to propose a novel clinicopathologic risk stratification score assigning 1 point each for: age above 45 years, size≥5 cm,≥4 mitotic figures per 10 high-power field, and infiltrative borders. No tumors with 0 points had an aggressive outcome, while 21% of tumors with 1 to 2 points and all tumors with ≥3 points had aggressive outcomes. We propose a 2-step classification model that first uses the clinicopathologic risk stratification score to identify low-risk and high-risk tumors, and recommend molecular testing to further classify intermediate-risk tumors.
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22
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Vermij L, Léon-Castillo A, Singh N, Powell ME, Edmondson RJ, Genestie C, Khaw P, Pyman J, McLachlin CM, Ghatage P, de Boer SM, Nijman HW, Smit VTHBM, Crosbie EJ, Leary A, Creutzberg CL, Horeweg N, Bosse T. p53 immunohistochemistry in endometrial cancer: clinical and molecular correlates in the PORTEC-3 trial. Mod Pathol 2022; 35:1475-1483. [PMID: 35752743 PMCID: PMC7613653 DOI: 10.1038/s41379-022-01102-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 12/13/2022]
Abstract
Standard molecular classification of endometrial cancers (EC) is now endorsed by the WHO and identifies p53-abnormal (p53abn) EC as the subgroup with the poorest prognosis and the most likely to benefit from adjuvant chemo(radio)therapy. P53abn EC are POLE wildtype, mismatch repair proficient and show abnormal immunohistochemical (IHC) staining for p53. Correct interpretation of routinely performed p53 IHC has therefore become of paramount importance. We aimed to comprehensively investigate abnormal p53 IHC patterns and their relation to clinicopathological and molecular features. Tumor material of 411 molecularly classified high-risk EC from consenting patients from the PORTEC-3 clinical trial were collected. p53 IHC was successful in 408 EC and was considered abnormal when the tumor showed a mutant expression pattern (including subclonal): overexpression, null or cytoplasmic. The presence of pathogenic mutations was determined by next generation sequencing (NGS). Abnormal p53 expression was observed in 131/408 (32%) tumors. The most common abnormal p53 IHC pattern was overexpression (n = 89, 68%), followed by null (n = 12, 9%) and cytoplasmic (n = 3, 2%). Subclonal abnormal p53 staining was observed in 27 cases (21%), which was frequently but not exclusively, associated with POLE mutations and/or MMRd (n = 22/27; p < 0.001). Agreement between p53 IHC and TP53 NGS was observed in 90.7%, resulting in a sensitivity and specificity of 83.6% and 94.3%, respectively. Excluding POLEmut and MMRd EC, as per the WHO-endorsed algorithm, increased the accuracy to 94.5% with sensitivity and specificity of 95.0% and 94.1%, respectively. Our data shows that awareness of the abnormal p53 IHC patterns are prerequisites for correct EC molecular classification. Subclonal abnormal p53 expression is a strong indicator for POLEmut and/or MMRd EC. No significant differences in clinical outcomes were observed among the abnormal p53 IHC patterns. Our data support use of the WHO-endorsed algorithm and combining the different abnormal p53 IHC patterns into one diagnostic entity (p53abn EC).
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Affiliation(s)
- Lisa Vermij
- Departments of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Alicia Léon-Castillo
- Departments of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Naveena Singh
- Departments of Pathology, Barts Health NHS Trust, London, UK
| | | | - Richard J Edmondson
- Division of Cancer Sciences, University of Manchester, St Mary's Hospital, Manchester, UK
| | | | - Pearly Khaw
- Division of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Jan Pyman
- Department of Anatomical Pathology, Royal Women's Hospital, Parkville, VIC, Australia
| | - C Meg McLachlin
- Department of Pathology and Laboratory Medicine, Western University, London, ON, Canada
| | - Prafull Ghatage
- Department of Gynecological Oncology, Tom Baker Cancer Centre, Calgary, AB, Canada
| | - Stephanie M de Boer
- Radiation Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Hans W Nijman
- Department of Gynecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Vincent T H B M Smit
- Departments of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Emma J Crosbie
- Division of Cancer Sciences, University of Manchester, St Mary's Hospital, Manchester, UK
- Department of Obstetrics and Gynaecology, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | | | - Carien L Creutzberg
- Radiation Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Nanda Horeweg
- Radiation Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Tjalling Bosse
- Departments of Pathology, Leiden University Medical Center, Leiden, The Netherlands.
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23
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Wei KX, Hoang LN. Squamous and Glandular Lesions of the Vulva and Vagina: What's New and What Remains Unanswered? Surg Pathol Clin 2022; 15:389-405. [PMID: 35715167 DOI: 10.1016/j.path.2022.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A number of changes have been introduced into the 5th Edition of the World Health Organization (WHO) Classification of squamous and glandular neoplasms of the vulva and vagina. This review highlights the major shifts in tumor classification, new entities that have been introduced, recommendations for p16 immunohistochemical testing, biomarker use, molecular findings and practical points for pathologists which will affect clinical care. It also touches upon several issues that still remain answered in these rare but undeniably important women's cancers.
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Affiliation(s)
- Kelly X Wei
- MD Undergraduate Program, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Lynn N Hoang
- Vancouver General Hospital and University of British Columbia, Vancouver, British Columbia, Canada.
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Irshaid L, Clark M, Fadare O, Finberg KE, Parkash V. Endometrial Carcinoma as the Presenting Malignancy in a Teenager With a Pathogenic TP53 Germline Mutation: A Case Report and Literature Review. Int J Gynecol Pathol 2022; 41:258-267. [PMID: 33990091 DOI: 10.1097/pgp.0000000000000792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Patients with germline TP53 mutations are characterized by the occurrence of multiple early-onset malignancies. The characteristic syndrome is Li-Fraumeni syndrome (OMIM # 151623), an autosomal dominant disorder typified by premenopausal breast carcinoma, adrenal cortical tumors, bone and soft tissue sarcomas, leukemias, and tumors of the brain and spinal cord. Gynecologic malignancies are uncommonly reported in families harboring TP53 mutations, and the predominant tumor type reported is ovarian. Uterine carcinoma has been reported only a handful of times in patients with germline TP53 mutations, none as a presenting tumor in a teenager. We report on an 18-year-old patient who presented with grade 3, high-stage endometrioid endometrial carcinoma. Sequencing detected a single-nucleotide substitution in the TP53 gene (NM_000546.6:c.818G>A), encoding the missense substitution p.Arg273His (R273H) in both the tumor and normal tissue, consistent with a germline mutation. We discuss the biology of the TP53 gene and p53 protein, with emphasis on the R273H mutation. We also review the literature on endometrial carcinoma in patients with germline TP53 mutations.
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Kihara A, Amano Y, Fukushima N, Fujiwara H, Niki T. ZEB1 expression is frequently detected in undifferentiated and dedifferentiated carcinomas, but is not specific among endometrial carcinomas. Histopathology 2022; 81:108-118. [PMID: 35478361 DOI: 10.1111/his.14671] [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: 02/20/2022] [Revised: 04/22/2022] [Accepted: 04/26/2022] [Indexed: 11/27/2022]
Abstract
AIMS The pathological diagnosis of undifferentiated and dedifferentiated endometrial carcinomas (UC/DCs) is prognostically important. However, undifferentiated components may be confused with other subtypes, particularly grade 3 endometrioid carcinomas (G3ECs). ZEB1 has recently been identified as a promising marker because it is frequently expressed in the undifferentiated components of UC/DCs, but not in other carcinomas. Therefore, we herein evaluated the diagnostic utility of ZEB1 with an emphasis on distinguishing between UC/DCs and G3ECs using an expanded cohort of endometrial carcinomas and carcinosarcomas. METHODS AND RESULTS Immunostaining for ZEB1 was performed on whole-tissue sections of 19 UC/DCs, 194 non-UC/DC endometrial carcinomas, and 29 carcinosarcomas. Staining was defined as negative (<5%), focal (5-50%), and diffuse expression (>50%). ZEB1 was expressed in 84% of the undifferentiated components of UC/DCs (diffuse in 14, focal in two). Focal expression was observed in eight non-UC/DC endometrial carcinomas and diffuse expression in seven, with the latter comprising G3ECs (4/76), serous carcinoma (1/37), clear cell carcinoma (1/21), and neuroendocrine carcinoma (1/3). Epithelial differentiation was morphologically and immunohistochemically less evident in G3ECs and neuroendocrine carcinoma with diffuse ZEB1 expression. All carcinosarcomas showed diffuse ZEB1 expression in their sarcomatous components. CONCLUSION Immunostaining for ZEB1 was sufficiently sensitive to detect undifferentiated components. Diffuse ZEB1 expression showed high specificity for distinguishing between undifferentiated components and G3ECs; however, ZEB1 expression was not entirely specific to UC/DCs. The integration of ZEB1 into the diagnosis of UC/DCs requires careful examinations to exclude other tumours, such as less differentiated G3ECs, neuroendocrine carcinomas, and carcinosarcomas.
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Affiliation(s)
- Atsushi Kihara
- Department of Pathology, Jichi Medical University, Tochigi, Japan
| | - Yusuke Amano
- Department of Pathology, Jichi Medical University, Tochigi, Japan
| | | | - Hiroyuki Fujiwara
- Department of Obstetrics and Gynaecology, Jichi Medical University, Tochigi, Japan
| | - Toshiro Niki
- Department of Pathology, Jichi Medical University, Tochigi, Japan
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Rajendran S, McCluggage WG. WT1 Positive Ovarian Endometrioid Tumors: Observations From Consult Cases and Strategies for Distinguishing From Serous Neoplasms. Int J Gynecol Pathol 2022; 41:191-202. [PMID: 33782345 DOI: 10.1097/pgp.0000000000000788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Ovarian endometrioid carcinoma, more than any other type of ovarian epithelial malignancy, demonstrates a varied morphology which can cause problems in diagnosis. In tubo-ovarian tumor pathology, WT1 is a commonly used marker as it is consistently expressed in low-grade and high-grade serous carcinomas and is often considered a specific marker of a serous phenotype. However, ovarian endometrioid neoplasms may also express WT1 which may contribute to misdiagnosis. We report our experience with 23 ovarian endometrioid neoplasms (4 borderline tumors, 19 carcinomas), mainly received in consultation, which were WT1 positive (diffuse in 11 cases) which often contributed to misdiagnosis. Endometriosis was identified in the same ovary in 6 cases and squamous elements in 7. We describe strategies for distinguishing such neoplasms, which may exhibit morphologic overlap with serous tumors, from low-grade and high-grade serous carcinomas and stress that a diagnosis of HGSC is unlikely with two grossly and histologically normal fallopian tubes. We also stress that a panel of markers should always be used rather than relying on a single marker and that when the morphology is classical of an endometrioid carcinoma, diagnostic immunohistochemistry is not needed given the potential for confusion in cases showing "aberrant" staining. We also discuss the phenomenon of "aberrant" immunohistochemical staining in endometrioid carcinomas which appears more common than in other ovarian carcinomas.
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Affiliation(s)
- Simon Rajendran
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, Northern Ireland, UK (S.R., W.G.M.)
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p53 Immunohistochemistry and Mutation Types Mismatching in High-Grade Serous Ovarian Cancer. Diagnostics (Basel) 2022; 12:diagnostics12030579. [PMID: 35328131 PMCID: PMC8947437 DOI: 10.3390/diagnostics12030579] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/15/2022] [Accepted: 02/21/2022] [Indexed: 11/16/2022] Open
Abstract
High-grade serous carcinoma (HGSCa) of the ovary is featured by TP53 gene mutation. Missense or nonsense mutation types accompany most cases of HGSCa that correlate well with immunohistochemical (IHC) staining results—an all (missense) or none (nonsense) pattern. However, some IHCs produce subclonal or mosaic patterns from which TP53 mutation types, including the wild type of the gene, cannot be clearly deduced. We analyzed a total of 236 cases of ovarian HGSCa and tumors of other histology by matching the results of p53 IHC staining and targeted next-generation sequencing (TruSight Tumor 170 panel). Ambiguous IHCs that do not belong to the conventional “all or none” groups were reviewed to distinguish the true wild type (WT) from potentially pathogenic subclonal or mosaic patterns. There were about 9% of sequencing-IHC mismatching cases, which were enriched by the p53 c-terminal encoding nuclear localization signal and oligomerization domain, in which the subcellular locations of p53 protein were affected. Indeed, mutations in the oligomerization domain of the p53 protein frequently revealed an unmatched signal or cytosolic staining (L289Ffs*57 (Ins), and R342*). We conclude that both mutation types and IHC patterns of p53 are important sources of information to provide a precise diagnosis of HGSCa.
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Cui Y, Han L, Shang J, Fang W, Zhao M, Chen D, Liu H. Primary cardiac undifferentiated pleomorphic sarcoma is associated with TP53 mutation during lack of MDM2 amplification, and targeted sequencing analysis reveals potentially actionable targets. Hum Pathol 2022; 123:113-122. [PMID: 35181378 DOI: 10.1016/j.humpath.2022.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/01/2022] [Accepted: 02/08/2022] [Indexed: 11/25/2022]
Abstract
Cardiac undifferentiated pleomorphic sarcoma (UPS) is a rare malignancy. Several studies have revealed frequent MDM2, CDK4, PDFGRA, and KIT amplifications and CDKN2A and CDKN2B deletions. Cases lacking the above copy number alterations may harbor alternative driver mutations; however, little is known about such occurrences. This study was conducted to gain further insights into the molecular features of cardiac UPS using targeted sequencing of 560 cancer-related genes, and fluorescence in situ hybridization and immunohistochemistry of MDM2, CDK4, CDKN2A, TP53, and RB1 in 9 cardiac UPS cases. TP53 mutation or CDKN2A deletion was found in cases lacking MDM2 amplification. Further, p53 overexpression was detected in the case with TP53 mutation, while p16 expression was completely lost in the case with CDKN2A homozygous deletion. p16 overexpression was found in cases with MDM2 and CDK4 amplification but without CDKN2A deletion. Immunohistochemistry of MDM2, CDK4, p53, and p16 is expected to be preliminarily used for gene status analysis. As cardiac UPS and intimal sarcomas are merging into a single spectrum, mutation data for 3 cardiac UPS and 9 intimal sarcomas from the literature, as well as data for 5 cardiac UPS in our study were evaluated, and known recurrently mutated cancer driver genes, including PDGFRB, TP53, ALK, PTCH1, RET, ERBB4, JAK3, GATA1, PIK3CG, and RARA, were identified. Several new potentially actionable mutations, including those in RARA, ALK, PTCH1, RET, ROS1, ABL1, and MET, were also found. These findings improve the molecular understanding of this rare malignancy and are expected to provide a basis for developing precision therapeutics for cardiac UPS and intimal sarcomas.
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Affiliation(s)
- Yayan Cui
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing, 100005, China; Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Liyuan Han
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Jianfeng Shang
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Wei Fang
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Meng Zhao
- The Scientific and Technical Department, Novogene Bioinformatics Institute, Beijing, 102206, China
| | - Dong Chen
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China.
| | - Honggang Liu
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing, 100005, China.
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29
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Yee C, Dickson KA, Muntasir MN, Ma Y, Marsh DJ. Three-Dimensional Modelling of Ovarian Cancer: From Cell Lines to Organoids for Discovery and Personalized Medicine. Front Bioeng Biotechnol 2022; 10:836984. [PMID: 35223797 PMCID: PMC8866972 DOI: 10.3389/fbioe.2022.836984] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/19/2022] [Indexed: 12/11/2022] Open
Abstract
Ovarian cancer has the highest mortality of all of the gynecological malignancies. There are several distinct histotypes of this malignancy characterized by specific molecular events and clinical behavior. These histotypes have differing responses to platinum-based drugs that have been the mainstay of therapy for ovarian cancer for decades. For histotypes that initially respond to a chemotherapeutic regime of carboplatin and paclitaxel such as high-grade serous ovarian cancer, the development of chemoresistance is common and underpins incurable disease. Recent discoveries have led to the clinical use of PARP (poly ADP ribose polymerase) inhibitors for ovarian cancers defective in homologous recombination repair, as well as the anti-angiogenic bevacizumab. While predictive molecular testing involving identification of a genomic scar and/or the presence of germline or somatic BRCA1 or BRCA2 mutation are in clinical use to inform the likely success of a PARP inhibitor, no similar tests are available to identify women likely to respond to bevacizumab. Functional tests to predict patient response to any drug are, in fact, essentially absent from clinical care. New drugs are needed to treat ovarian cancer. In this review, we discuss applications to address the currently unmet need of developing physiologically relevant in vitro and ex vivo models of ovarian cancer for fundamental discovery science, and personalized medicine approaches. Traditional two-dimensional (2D) in vitro cell culture of ovarian cancer lacks critical cell-to-cell interactions afforded by culture in three-dimensions. Additionally, modelling interactions with the tumor microenvironment, including the surface of organs in the peritoneal cavity that support metastatic growth of ovarian cancer, will improve the power of these models. Being able to reliably grow primary tumoroid cultures of ovarian cancer will improve the ability to recapitulate tumor heterogeneity. Three-dimensional (3D) modelling systems, from cell lines to organoid or tumoroid cultures, represent enhanced starting points from which improved translational outcomes for women with ovarian cancer will emerge.
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Affiliation(s)
- Christine Yee
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Kristie-Ann Dickson
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Mohammed N. Muntasir
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Yue Ma
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Deborah J. Marsh
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
- Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
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30
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The Evolution of Ovarian Carcinoma Subclassification. Cancers (Basel) 2022; 14:cancers14020416. [PMID: 35053578 PMCID: PMC8774015 DOI: 10.3390/cancers14020416] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Historically, cancers presenting with their main tumor mass in the ovary have been classified as ovarian carcinomas (a concise term for epithelial ovarian cancer) and treated with a one-size-fits-all approach. Over the last two decades, a growing molecular understanding established that ovarian carcinomas consist of several distinct histologic types, which practically represent different diseases. Further research is now delineating several molecular subtypes within each histotype. This histotype/molecular subtype subclassification provides a framework of grouping tumors based on molecular similarities for research, clinical trial inclusion and future patient management. Abstract The phenotypically informed histotype classification remains the mainstay of ovarian carcinoma subclassification. Histotypes of ovarian epithelial neoplasms have evolved with each edition of the WHO Classification of Female Genital Tumours. The current fifth edition (2020) lists five principal histotypes: high-grade serous carcinoma (HGSC), low-grade serous carcinoma (LGSC), mucinous carcinoma (MC), endometrioid carcinoma (EC) and clear cell carcinoma (CCC). Since histotypes arise from different cells of origin, cell lineage-specific diagnostic immunohistochemical markers and histotype-specific oncogenic alterations can confirm the morphological diagnosis. A four-marker immunohistochemical panel (WT1/p53/napsin A/PR) can distinguish the five principal histotypes with high accuracy, and additional immunohistochemical markers can be used depending on the diagnostic considerations. Histotypes are further stratified into molecular subtypes and assessed with predictive biomarker tests. HGSCs have recently been subclassified based on mechanisms of chromosomal instability, mRNA expression profiles or individual candidate biomarkers. ECs are composed of the same molecular subtypes (POLE-mutated/mismatch repair-deficient/no specific molecular profile/p53-abnormal) with the same prognostic stratification as their endometrial counterparts. Although methylation analyses and gene expression and sequencing showed at least two clusters, the molecular subtypes of CCCs remain largely elusive to date. Mutational and immunohistochemical data on LGSC have suggested five molecular subtypes with prognostic differences. While our understanding of the molecular composition of ovarian carcinomas has significantly advanced and continues to evolve, the need for treatment options suitable for these alterations is becoming more obvious. Further preclinical studies using histotype-defined and molecular subtype-characterized model systems are needed to expand the therapeutic spectrum for women diagnosed with ovarian carcinomas.
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McGregor SM. Pathologic Classification of Ovarian Cancer. Methods Mol Biol 2022; 2424:11-40. [PMID: 34918285 DOI: 10.1007/978-1-0716-1956-8_2] [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] [Indexed: 06/14/2023]
Abstract
Optimal use of human tissue for research requires an understanding of basic pathologic principles. Given that the physical assessment of tissue must occur as part of standard clinical examination, it cannot be handled directly by investigators unless they are also a part of the care team. The purpose of this chapter is to provide an overview of the clinical analytic process, from initial gross handling to histologic examination by light microscopy and the use of ancillary studies, in order to provide context for samples that are used in research and to highlight specific considerations that are relevant for obtaining appropriate tissue for experimental purposes. Given that they comprise >95% of ovarian malignancies, there is an emphasis on epithelial tumors.
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Affiliation(s)
- Stephanie M McGregor
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI, USA.
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32
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Buza N. Immunohistochemistry in gynecologic carcinomas: Practical update with diagnostic and clinical considerations based on the 2020 WHO classification of tumors. Semin Diagn Pathol 2021; 39:58-77. [PMID: 34750021 DOI: 10.1053/j.semdp.2021.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/28/2021] [Indexed: 02/06/2023]
Abstract
This review provides an update on immunohistochemistry applications-diagnostic, prognostic, and predictive-in the pathology evaluation of gynecologic carcinomas. The 5th edition of the WHO Classification of Female Genital Tumors introduced important changes in the diagnostic classification of lower genital tract, endometrial, and ovarian carcinomas, with major influence on the routine pathology practice. Lower genital tract carcinomas and their precursor lesions are now classified based on their human papillomavirus (HPV)-associated and HPV-independent pathogenesis, reflecting the clinically significant prognostic differences and impacting the therapeutic decision-making. Immunohistochemical markers have an increasing role in the pathology evaluation of endometrial carcinomas: in addition to their traditional use in the differential diagnosis and histologic subtyping, they have also been recently advocated for prognostic classification as surrogates for the TCGA (The Cancer Genome Atlas) molecular groups. New entities - mesonephric-like adenocarcinoma and gastric (gastrointestinal)-type mucinous adenocarcinoma of the endometrium - have also been added and often require immunostains for diagnostic confirmation. Ovarian carcinomas frequently show overlapping morphologic patterns and heterogeneous appearance within the same tumor, necessitating immunohistochemical work-up. Beyond diagnostic applications, there is increasing clinical demand for screening of inherited cancer syndromes, prediction of prognosis and guiding targeted therapy. Practical issues and pitfalls related to mismatch repair protein immunohistochemistry, HER2, and PD-L1 testing are also discussed.
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Affiliation(s)
- Natalia Buza
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA.
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33
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Kang EY, Wiebe NJ, Aubrey C, Lee CH, Anglesio MS, Tilley D, Ghatage P, Nelson GS, Lee S, Köbel M. Selection of endometrial carcinomas for p53 immunohistochemistry based on nuclear features. JOURNAL OF PATHOLOGY CLINICAL RESEARCH 2021; 8:19-32. [PMID: 34596362 PMCID: PMC8682942 DOI: 10.1002/cjp2.243] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/16/2021] [Accepted: 09/01/2021] [Indexed: 01/18/2023]
Abstract
The World Health Organization endorses molecular subclassification of endometrial endometrioid carcinomas (EECs). Our objectives were to test the sensitivity of tumor morphology in capturing p53 abnormal (p53abn) cases and to model the impact of p53abn on changes to ESGO/ESTRO/ESP (European Society of Gynaecological Oncology/European Society for Radiotherapy and Oncology/European Society of Pathology) risk stratification. A total of 292 consecutive endometrial carcinoma resections received at Foothills Medical Centre, Calgary, Canada (2019–2021) were retrieved and assigned to ESGO risk groups with and without p53 status. Three pathologists reviewed the representative H&E‐stained slides, predicted the p53 status, and indicated whether p53 immunohistochemistry (IHC) would be ordered. Population‐based survival for endometrial carcinomas diagnosed during 2008–2016 in Alberta was obtained from the Alberta Cancer Registry. The cohort consisted mostly of grade 1/2 endometrioid carcinomas (EEC1/2; N = 218, 74.6%). One hundred and fifty‐two EEC1/2 (52.1% overall) were stage IA and 147 (50.3%) were low risk by ESGO. The overall prevalence of p53abn and subclonal p53 was 14.5 and 8.3%, respectively. The average sensitivity of predicting p53abn among observers was 83.6%. Observers requested p53 IHC for 39.4% with 98.5% sensitivity to detect p53abn (99.6% negative predictive value). Nuclear features including smudged chromatin, pleomorphism, atypical mitoses, and tumor giant cells accurately predicted p53abn. In 7/292 (2.4%), p53abn upgraded ESGO risk groups (2 to intermediate risk, 5 to high risk). EEC1/2/stage IA patients had an excellent disease‐specific 5‐year survival of 98.5%. Pathologists can select cases for p53 testing with high sensitivity and low risk of false negativity. Molecular characterization of endometrial carcinomas has great potential to refine ESGO risk classification for a small subset but offers little value for approximately half of endometrial carcinomas, namely, EEC1/2/stage IA cases.
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Affiliation(s)
- Eun Young Kang
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | - Nicholas Jp Wiebe
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | - Christa Aubrey
- Department of Oncology, Division of Gynecologic Oncology, University of Calgary, Calgary, AB, Canada
| | - Cheng-Han Lee
- Department of Pathology and Laboratory Medicine, University of Alberta, Edmonton, AB, Canada
| | - Michael S Anglesio
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Derek Tilley
- Cancer Control, Alberta Health Services, Holy Cross Center, Calgary, AB, Canada
| | - Prafull Ghatage
- Department of Oncology, Division of Gynecologic Oncology, University of Calgary, Calgary, AB, Canada
| | - Gregg S Nelson
- Department of Oncology, Division of Gynecologic Oncology, University of Calgary, Calgary, AB, Canada
| | - Sandra Lee
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | - Martin Köbel
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
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