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Liu T, Ho CL, Chen YJ, Chen PJ, Chen WL, Lee CT, Chow NH, Huang W, Chen YL. A pilot study on the detection of microsatellite instability using long mononucleotide repeats in solid tumors. Oncol Lett 2024; 28:445. [PMID: 39099584 PMCID: PMC11294907 DOI: 10.3892/ol.2024.14578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/03/2024] [Indexed: 08/06/2024] Open
Abstract
Microsatellite instability (MSI) status is a prognostic biomarker for immunotherapy in certain types of cancers, such as colorectal cancers (CRCs) and endometrial cancers (ECs). Tumors that are categorized as having high MSI (MSI-H) express high levels of neoantigens for immune recognition. The typical MSI test measures the length of short mononucleotide repeats (SMR) poly(A) 21-27; however, a limitation of this test is the difficulty in determining the shift size, particularly in endometrial cancer. To investigate an MSI detection assay with improved performance, the present study analyzed the use of poly(A) 40-44 mononucleotide repeats to detect the MSI status of 100 patients with either CRC (n=50) or EC (n=50). Capillary electrophoresis was used to evaluate five long mononucleotide repeat (LMR) markers, including poly(A) 40-A, 40-B, 40-C, 40-D and 44. The concordance rate of the LMR-MSI assay compared with an immunohistochemistry MSI detection assay was 96.0 and 95.1% for CRCs and ECs respectively, with the detection limit of the LMR-MSI assay demonstrated to be 2.5% MSI-H in HCT116 colorectal carcinoma cell lines. The LMR-MSI assay yielded a 95.1% concordance rate in ECs compared with that in the SMR-MSI test (87.8%). The LMR-MSI test identified a significantly higher mean shift size (13 bp) in MSI-H tumors compared with the SMR-MSI test (10 bp), in both EC and CRC tissue samples. Together, the present study suggested that the LMR-MSI test could potentially be a sensitive and practical technology for molecular laboratory testing, particularly in the use of immunotherapy for patients with CRCs and ECs.
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Affiliation(s)
- Tsunglin Liu
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
| | - Chung-Liang Ho
- Molecular Diagnosis Laboratory, Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
- Department of Laboratory Medicine, Center for Precision Medicine, China Medical University Hospital, Taichung 404, Taiwan, R.O.C
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
| | - Yan-Jhen Chen
- Molecular Diagnosis Laboratory, Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
| | - Pin-Jun Chen
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
| | - Wan-Li Chen
- Molecular Diagnosis Laboratory, Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
| | - Chung-Ta Lee
- Department of Laboratory Medicine, Center for Precision Medicine, China Medical University Hospital, Taichung 404, Taiwan, R.O.C
| | - Nan-Haw Chow
- Department of Laboratory Medicine, Center for Precision Medicine, China Medical University Hospital, Taichung 404, Taiwan, R.O.C
| | - Wenya Huang
- Molecular Diagnosis Laboratory, Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
- Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
| | - Yi-Lin Chen
- Molecular Diagnosis Laboratory, Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
- Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
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Siebolts U, Schömig-Markiefka B, Siemanowski-Hrach J, Merkelbach-Bruse S. [Endometrial carcinoma: molecular classification in routine pathology]. PATHOLOGIE (HEIDELBERG, GERMANY) 2024; 45:347-354. [PMID: 39141093 DOI: 10.1007/s00292-024-01345-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/05/2024] [Indexed: 08/15/2024]
Abstract
The molecular classification of endometrial carcinoma defines four main groups: polymerase‑ɛ(PolE) gene mutated, microsatellite unstable (MSI), p53 abnormal tumors and tumors with no specific molecular profile (NSMP). This classification provides significant insights into the prognosis and therapeutic decisions. Each group exhibits unique genetic profiles identified through immunohistochemistry and molecular diagnostics, enabling personalized treatment. The identification of these molecular signatures necessitates precise analytical methods, selected based on the local circumstances at each site. The approach to molecular classification highlights the critical role of pathology in the diagnosis and emphasizes the necessity of collaboration between the clinic and pathology.
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Affiliation(s)
- Udo Siebolts
- Institut für Pathologie, Medizinische Fakultät und Universitätsklinikum Köln, Universität zu Köln, Köln, Deutschland
| | - Birgid Schömig-Markiefka
- Institut für Pathologie, Medizinische Fakultät und Universitätsklinikum Köln, Universität zu Köln, Köln, Deutschland
| | - Janna Siemanowski-Hrach
- Institut für Pathologie, Medizinische Fakultät und Universitätsklinikum Köln, Universität zu Köln, Köln, Deutschland
| | - Sabine Merkelbach-Bruse
- Institut für Pathologie, Medizinische Fakultät und Universitätsklinikum Köln, Universität zu Köln, Köln, Deutschland.
- Institut für Pathologie, Universitätsklinikum Köln, Kerpener Str. 62, 50924, Köln, Deutschland.
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Mendiola M, Heredia-Soto V, Ruz-Caracuel I, Baillo A, Ramon-Patino JL, Berjon A, Escudero FJ, Pelaez-Garcia A, Hernandez A, Feliu J, Hardisson D, Redondo A. Performance of the Idylla microsatellite instability test in endometrial cancer. Mol Cell Probes 2024; 77:101976. [PMID: 39069012 DOI: 10.1016/j.mcp.2024.101976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/25/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
CONTEXT DNA mismatch repair (MMR) deficiency (dMMR) testing is now recommended in endometrial cancer. Defect identification in the molecules participating in this pathway, or the presence of microsatellite instability, are commonly employed for this purpose. Novel methods are continuously evolving to report dMMR/microsatellite instability and to easily perform routine diagnoses. OBJECTIVE The main aim of this study was to compare the concordance of the Idylla microsatellite instability test for the identification of dMMR endometrial cancer samples defined by immunohistochemistry and MMR genomic status. DESIGN We applied the Idylla MSI test to 126 early-stage endometrial cancer cases with MMR testing by immunohistochemistry and genomic characterization (methylation in MLH1 and sequence alterations in MLH1, PMS2, MSH2 and MSH6). Individual markers and overall specific performance indicators were explored. RESULTS The Idylla platform achieved a higher global concordance rate with MMR genomic status than with immunohistochemistry (75 % and 66 %, respectively). Sensitivity and specificity are also higher (75 % vs 66 % and 96 % vs 90 %, respectively). Clustering analysis split the patients into 2 well-differentiated clusters, the pMMR and the dMMR group, represented by MLH1/PMS2 loss and the MLH1 methylated promoter. Overall, immunohistochemistry and MMR genomic status identified more dMMR cases than did the Idylla test, although correlations were improved with a modified Idylla test cut-off. CONCLUSIONS Performance of the Idylla test was better correlated with MMR genomic status than MMR immunohistochemistry status, which improved with a modified test cut-off. Further studies are needed to confirm the cut-off accuracy.
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Affiliation(s)
- Marta Mendiola
- Molecular Pathology and Therapeutic Targets Group, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain.
| | - Victoria Heredia-Soto
- Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain; Translational Oncology Research Laboratory, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain
| | - Ignacio Ruz-Caracuel
- Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain; Department of Pathology, La Paz University Hospital, 28046, Madrid, Spain
| | - Amparo Baillo
- Mathematics Department, Autonomous University of Madrid, 28049, Madrid, Spain
| | | | - Alberto Berjon
- Molecular Pathology and Therapeutic Targets Group, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Department of Pathology, La Paz University Hospital, 28046, Madrid, Spain
| | - Francisco Javier Escudero
- Translational Oncology Research Laboratory, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain
| | - Alberto Pelaez-Garcia
- Molecular Pathology and Therapeutic Targets Group, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain
| | - Alicia Hernandez
- Department of Obstetrics and Gynecology, La Paz University Hospital, 28046, Madrid, Spain; School of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain
| | - Jaime Feliu
- Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain; Translational Oncology Research Laboratory, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Department of Medical Oncology, La Paz University Hospital, 28046, Madrid, Spain; School of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain; Cátedra UAM-ANGEM, Faculty of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain
| | - David Hardisson
- Molecular Pathology and Therapeutic Targets Group, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain; Department of Pathology, La Paz University Hospital, 28046, Madrid, Spain; School of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain
| | - Andres Redondo
- Translational Oncology Research Laboratory, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Department of Medical Oncology, La Paz University Hospital, 28046, Madrid, Spain; School of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain; Cátedra UAM-ANGEM, Faculty of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain.
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Ribeiro R, Carvalho FM, Baiocchi G, Guindalini RSC, da Cunha JR, Anjos CHD, de Nadai Costa C, Gifoni ACLVC, Neto RC, Cagnacci AQC, Carneiro VCG, Calabrich A, Moretti-Marques R, Pinheiro RN, de Castro Ribeiro HS. Guidelines of the Brazilian Society of Surgical Oncology for anatomopathological, immunohistochemical, and molecular testing in female tumors. J Surg Oncol 2024. [PMID: 39038206 DOI: 10.1002/jso.27717] [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: 05/01/2024] [Accepted: 05/04/2024] [Indexed: 07/24/2024]
Abstract
INTRODUCTION Precision medicine has revolutionized oncology, providing more personalized diagnosis, treatment, and monitoring for patients with cancer. In the context of female-specific tumors, such as breast, ovarian, endometrial, and cervical cancer, proper tissue collection and handling are essential for obtaining tissue, immunohistochemical (IHC), and molecular data to guide therapeutic decisions. OBJECTIVES To establish guidelines for the collection and handling of tumor tissue, to enhance the quality of samples for histopathological, IHC, genomic, and molecular analyses. These guidelines are fundamental in informing therapeutic decisions in cancer treatment. METHOD The guidelines were developed by a multidisciplinary panel of renowned specialists between June 12, 2013 and February 12, 2024. Initially, the panel deliberated on critical and controversial topics related to conducting precision medicine studies focusing on female tumors. Subsequently, 22 pivotal topics were identified within the framework and assigned to groups. These groups reviewed relevant literature and drafted preliminary recommendations. Following this, the recommendations were reviewed by the coordinators and received unanimous approval. Finally, the groups made the final adjustments, classified the level of evidence, and ranked the recommendations. CONCLUSION The collection of surgical samples requires minimum quality standards to enable histopathological, IHC, genomic, and molecular analyses. These analyses provide crucial data for informing therapeutic decisions, significantly impacting potential survival gains for patients with female tumors.
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Affiliation(s)
- Reitan Ribeiro
- Department of Gynecology Oncology, Erasto Gaertner Hospital, Curitiba, Paraná, Brazil
| | - Filomena Marino Carvalho
- Department of Pathology, Faculdade de Medicina (FMUSP), Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Glauco Baiocchi
- Department of Gynecologic Oncology, AC Camargo Cancer Center , São Paulo, São Paulo, Brazil
| | | | | | | | | | | | - Renato Cagnacci Neto
- Department of Mastology, Breast Cancer Reference Center, AC Camargo Cancer, CenterSão Paulo, São Paulo, Brazil
| | - Allyne Queiroz Carneiro Cagnacci
- Department of Oncology, Oncology Center, Hospital Alemão Oswaldo Cruz, São Paulo, São Paulo, Brazil
- Hereditary Cancer Department, Instituto do Câncer do Estado de São Paulo (ICESPSP), São Paulo, São Paulo, Brazil
| | - Vandré Cabral Gomes Carneiro
- Department of Gynecology Oncology, Instituto de Medicina Integral Professor Fernando Figueira (IMIP), Recife, Pernambuco, Brazil
- Research Department, Hospital de Câncer de Pernambuco, Recife, Brazil
- Department of Oncogenetic, Oncologia D'OR, Recife, Pernambuco, Brazil
| | - Aknar Calabrich
- Department of Oncology, Clínica AMO/DASA, Salvador, Bahia, Brazil
| | - Renato Moretti-Marques
- Department of Oncology, Albert Einstein Israelite Hospital, São Paulo, São Paulo, Brazil
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Rüschoff J, Dietmaier W, Edmonston TB, Büttner R. Mismatch repair and microsatellite instability-Recommendation for an optimal test strategy. Cancer 2024; 130:1711-1712. [PMID: 38430458 DOI: 10.1002/cncr.35211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Affiliation(s)
- Josef Rüschoff
- Discovery Life Sciences Biomarker GmbH and North Hesse Pathology, Kassel, Germany
| | - Wolfgang Dietmaier
- Institute of Pathology, Center for Molecular Pathology Diagnosis, University of Regensburg, Regensburg, Germany
| | | | - Reinhard Büttner
- Institute of Pathology, Cologne University Hospital, Cologne, Germany
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Riedinger CJ, Esnakula A, Haight PJ, Suarez AA, Chen W, Gillespie J, Villacres A, Chassen A, Cohn DE, Goodfellow PJ, Cosgrove CM. Reply to "Mismatch repair and microsatellite instability-Recommendation for an optimal test strategy". Cancer 2024; 130:1713-1714. [PMID: 38430468 DOI: 10.1002/cncr.35257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Affiliation(s)
- Courtney J Riedinger
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Ashwini Esnakula
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Paulina J Haight
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Adrian A Suarez
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Wei Chen
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Jessica Gillespie
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Alyssa Villacres
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Alexis Chassen
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - David E Cohn
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Paul J Goodfellow
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Casey M Cosgrove
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
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Nádorvári ML, Lotz G, Kulka J, Kiss A, Tímár J. Microsatellite instability and mismatch repair protein deficiency: equal predictive markers? Pathol Oncol Res 2024; 30:1611719. [PMID: 38655493 PMCID: PMC11036414 DOI: 10.3389/pore.2024.1611719] [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: 02/05/2024] [Accepted: 03/27/2024] [Indexed: 04/26/2024]
Abstract
Current clinical guidelines recommend mismatch repair (MMR) protein immunohistochemistry (IHC) or molecular microsatellite instability (MSI) tests as predictive markers of immunotherapies. Most of the pathological guidelines consider MMR protein IHC as the gold standard test to identify cancers with MMR deficiency and recommend molecular MSI tests only in special circumstances or to screen for Lynch syndrome. However, there are data in the literature which suggest that the two test types may not be equal. For example, molecular epidemiology studies reported different rates of deficient MMR (dMMR) and MSI in various cancer types. Additionally, direct comparisons of the two tests revealed relatively frequent discrepancies between MMR IHC and MSI tests, especially in non-colorectal and non-endometrial cancers and in cases with unusual dMMR phenotypes. There are also scattered clinical data showing that the efficacy of immune checkpoint inhibitors is different if the patient selection was based on dMMR versus MSI status of the cancers. All these observations question the current dogma that dMMR phenotype and genetic MSI status are equal predictive markers of the immunotherapies.
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Affiliation(s)
| | | | | | | | - József Tímár
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
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Nádorvári ML, Kenessey I, Kiss A, Barbai T, Kulka J, Rásó E, Tímár J. Comparison of standard mismatch repair deficiency and microsatellite instability tests in a large cancer series. J Transl Med 2024; 22:150. [PMID: 38350968 PMCID: PMC10863158 DOI: 10.1186/s12967-024-04960-y] [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: 10/17/2023] [Accepted: 02/07/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND The tumor-agnostic indication of immune checkpoint inhibitors to treat cancers with mismatch repair deficiency (dMMR)/microsatellite instability (MSI) increased the demand for such tests beyond Lynch syndrome. International guideline recommendations accept immunohistochemistry (IHC) for dMMR or molecular techniques (PCR or NGS) for MSI status determinations considering the two tests are equal, although there are scattered reports contradicting to this presumption. MATERIALS AND METHODS Here we have directly compared four protein MMR immunohistochemistry (IHC) to MSI Pentaplex PCR test in a large cancer patient cohort (n = 1306) of our diagnostic center where the two tests have been run parallel in 703 cases. RESULTS In this study we have found a high discrepancy rate (19.3%) of the two tests which was independent of the tumor types. The MSI PCR sensitivity for MMR IHC status was found to be very low resulting in a relatively low positive and negative predicting values. As a consequence, the correlation of the two tests was low (kappa < 0.7). During analysis of the possible contributing factors of this poor performance, we have excluded low tumor percentage of the samples, but identified dMMR phenotypes (classic versus non-classic or unusual) as possible contributors. CONCLUSION Although our cohort did not include samples with identified technical errors, our data strongly support previous reports that unidentified preanalytical factors might have the major influence on the poor performance of the MSI PCR and MMR IHC. Furthermore, the case is open whether the two test types are equally powerful predictive markers of immunotherapies.
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Affiliation(s)
- Maja L Nádorvári
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
| | - István Kenessey
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
| | - András Kiss
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
| | - Tamás Barbai
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
| | - Janina Kulka
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
| | - Erzsébet Rásó
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
| | - József Tímár
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary.
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Evrard C, Cortes U, Ndiaye B, Bonnemort J, Martel M, Aguillon R, Tougeron D, Karayan-Tapon L. An Innovative and Accurate Next-Generation Sequencing-Based Microsatellite Instability Detection Method for Colorectal and Endometrial Tumors. J Transl Med 2024; 104:100297. [PMID: 38008183 DOI: 10.1016/j.labinv.2023.100297] [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: 04/12/2023] [Revised: 11/20/2023] [Accepted: 11/20/2023] [Indexed: 11/28/2023] Open
Abstract
The detection of microsatellite instability (MSI) and mismatch repair (MMR) deficiency has become mandatory for most tumors in recent years, owing to the development of immune checkpoint inhibitors as a highly effective therapy for MMR deficiency/MSI tumors. The timely and efficient detection of MSI is valuable, and new methods are increasingly being developed. To date, MMR assessment has been performed using immunohistochemistry of the 4 MMR proteins and/or microsatellite stability/MSI using PCR, mostly using the pentaplex panel. The implementation of next-generation sequencing (NGS) for MSI analysis would improve the effectiveness at a lower cost and in less time. This study describes the development of 8 new microsatellites combined with a classification algorithm, termed "Octaplex CaBio-MSID" (for Cancérologie Biologique MSI Detection tool), to assess MSI using NGS. A series of 303 colorectal cancer and 88 endometrial cancer samples were assessed via MSI testing using NGS using the Octaplex CaBio-MSID algorithm. The sensitivity and specificity of Octaplex CaBio-MSID were 98.4% and 98.4% for colorectal cancers, and 89.3% and 100% for endometrial cancers, respectively. This new NGS-based MSI detection method outperforms previously published methods (ie, Idylla [Biocartis], OncoMate MSI Dx [Promega], and Foundation One CDx [Roche Foundation Medicine]). Although highly efficient, Octaplex CaBio-MSID requires validation in a larger independent series of different tumor types.
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Affiliation(s)
- Camille Evrard
- Université de Poitiers, PRoDiCeT, Poitiers, France; CHU de Poitiers, Service d'Oncologie médicale, Poitiers, France.
| | - Ulrich Cortes
- CHU de Poitiers, Service de Cancérologie Biologique, Poitiers, France
| | - Birama Ndiaye
- CHU de Poitiers, Service de Cancérologie Biologique, Poitiers, France
| | | | - Marine Martel
- CHU de Poitiers, Service de Cancérologie Biologique, Poitiers, France
| | - Roxanne Aguillon
- CHU de Poitiers, Service de Cancérologie Biologique, Poitiers, France
| | - David Tougeron
- Université de Poitiers, PRoDiCeT, Poitiers, France; CHU de Poitiers, Service d'hépato-Gastro-Entérologie, Poitiers, France
| | - Lucie Karayan-Tapon
- Université de Poitiers, PRoDiCeT, Poitiers, France; CHU de Poitiers, Service de Cancérologie Biologique, Poitiers, France
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10
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Chung Y, Nam SK, Chang HE, Lee C, Kang GH, Lee HS, Park KU. Evaluation of an eight marker-panel including long mononucleotide repeat markers to detect microsatellite instability in colorectal, gastric, and endometrial cancers. BMC Cancer 2023; 23:1100. [PMID: 37953261 PMCID: PMC10641958 DOI: 10.1186/s12885-023-11607-6] [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: 07/12/2023] [Accepted: 11/02/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Accurate determination of microsatellite instability (MSI) status is critical for optimal treatment in cancer patients. Conventional MSI markers can sometimes display subtle shifts that are difficult to interpret, especially in non-colorectal cases. We evaluated an experimental eight marker-panel including long mononucleotide repeat (LMR) markers for detection of MSI. METHODS The eight marker-panel was comprised of five conventional markers (BAT-25, BAT-26, NR-21, NR-24, and NR-27) and three LMR markers (BAT-52, BAT-59 and BAT-62). MSI testing was performed against 300 specimens of colorectal, gastric, and endometrial cancers through PCR followed by capillary electrophoresis length analysis. RESULTS The MSI testing with eight marker-panel showed 99.3% (295/297) concordance with IHC analysis excluding 3 MMR-focal deficient cases. The sensitivity of BAT-59 and BAT-62 was higher than or comparable to that of conventional markers in gastric and endometrial cancer. The mean shift size was larger in LMR markers compared to conventional markers for gastric and endometrial cancers. CONCLUSIONS The MSI testing with eight maker-panel showed comparable performance with IHC analysis. The LMR markers, especially BAT-59 and BAT-62, showed high sensitivity and large shifts which can contribute to increased confidence in MSI classification, especially in gastric and endometrial cancers. Further study is needed with large number of samples for the validation of these LMR markers.
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Affiliation(s)
- Yousun Chung
- Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Seoul, Republic of Korea
| | - Soo Kyung Nam
- Department of Interdisciplinary Program in Cancer Biology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ho Eun Chang
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Cheol Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pathology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Gyeong Hoon Kang
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Pathology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea.
- Department of Pathology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
| | - Kyoung Un Park
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
- Department of Laboratory Medicine, Seoul National University Bundang Hospital, 82 Gumi-ro 173, Bundang-gu, Seongnam, 13620, Republic of Korea.
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Rüschoff J, Schildhaus HU, Rüschoff JH, Jöhrens K, Bocker Edmonston T, Dietmaier W, Bläker H, Baretton G, Horst D, Dietel M, Hartmann A, Klauschen F, Merkelbach-Bruse S, Stenzinger A, Schöniger S, Tiemann M, Weichert W, Büttner R. Testing for deficient mismatch repair and microsatellite instability : A focused update. PATHOLOGIE (HEIDELBERG, GERMANY) 2023; 44:61-70. [PMID: 37874379 PMCID: PMC10713762 DOI: 10.1007/s00292-023-01208-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 10/25/2023]
Abstract
Testing to detect mismatch repair deficiency (dMMR) and high-grade microsatellite instability (MSI-H) has become an integral part of the routine diagnostic workup for colorectal cancer (CRC). While MSI was initially considered to be a possible indicator of a hereditary disposition to cancer (Lynch syndrome, LS), today the prediction of the therapy response to immune checkpoint inhibitors (ICI) is in the foreground. Corresponding recommendations and testing algorithms are available for use in primary diagnosis (reviewed in: Rüschoff et al. 2021).Given the increasing importance for routine use and the expanding indication spectrum of ICI therapies for non-CRCs, such as endometrial, small intestinal, gastric, and biliary tract cancers, an updated review of dMMR/MSI testing is presented. The focus is on the challenges in the assessment of immunohistochemical stains and the value of PCR-based procedures, considering the expanded ICI indication spectrum. A practice-oriented flowchart for everyday diagnostic decision-making is provided that considers new data on the frequency and type of discordances between MMR-IHC and MSI-PCR findings, and the possible role of Next Generation Sequencing in clarifying them. Reference is made to the significance of systematic quality assurance measures (e.g., QuIP MSI portal and multicenter proficiency testing), including regular continued training and education.
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Affiliation(s)
- Josef Rüschoff
- Discovery Life Sciences Biomarker GmbH and North Hesse Pathology, Germaniastr. 7, 34119, Kassel, Germany.
| | - Hans-Ulrich Schildhaus
- Discovery Life Sciences Biomarker GmbH and North Hesse Pathology, Germaniastr. 7, 34119, Kassel, Germany
| | - Jan Hendrik Rüschoff
- Institute of Pathology and Molecular Pathology, Zürich University Hospital, Schmelzbergstrasse 12, 8091, Zürich, Switzerland
| | - Korinna Jöhrens
- Institute of Pathology, Carl Gustav Carus University Hospital, Fetscherstr. 74, 01307, Dresden, Germany
| | - Tina Bocker Edmonston
- Department of Pathology, Cooper University Health Care, 401 Haddon Ave, 08103, Camden, NJ, USA
| | - Wolfgang Dietmaier
- Institute of Pathology/Center for Molecular Pathology Diagnosis, University of Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Hendrik Bläker
- Institute for Pathology, Leipzig University Hospital, Leipzig, Germany
| | - Gustavo Baretton
- Institute of Pathology, Carl Gustav Carus University Hospital, Fetscherstr. 74, 01307, Dresden, Germany
| | - David Horst
- Institute of Pathology, Charité University Hospital, Central Campus, Charitéplatz 1, 10117, Berlin, Germany
| | - Manfred Dietel
- Institute of Pathology, Charité University Hospital, Central Campus, Charitéplatz 1, 10117, Berlin, Germany
| | - Arndt Hartmann
- Pathological Institute, University of Erlangen-Nuremberg, Krankenhausstr. 8-10, 91054, Erlangen, Germany
| | - Frederick Klauschen
- Pathological Institute, Ludwig Maximilian University of Munich, Thalkirchner Str. 36, 80337, Munich, Germany
| | - Sabine Merkelbach-Bruse
- Institute of Pathology, Cologne University Hospital, Kerpener Str. 62, 50937, Cologne, Germany
| | - Albrecht Stenzinger
- Pathological Institute, Heidelberg University Hospital, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany
| | - Sandra Schöniger
- Discovery Life Sciences Biomarker GmbH and North Hesse Pathology, Germaniastr. 7, 34119, Kassel, Germany
| | - Markus Tiemann
- Hamburg Institute of Hematopathology, Fangdieckstr. 75a, 22547, Hamburg, Germany
| | - Wilko Weichert
- Institute of Pathology, Technical University of Munich, Trogerstr. 18, 81675, Munich, Germany
| | - Reinhard Büttner
- Institute of Pathology, Cologne University Hospital, Kerpener Str. 62, 50937, Cologne, Germany
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12
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Mackinnon AC, Johnson CM, Robin A, Christiansen L, Hanbazazh M, Summey RM, Chandrashaker D, Harada S, Bradley WH. Pathologic, immunologic, and clinical analysis of the microsatellite instability phenotype in endometrial carcinoma. Hum Pathol 2023; 139:80-90. [PMID: 37245630 DOI: 10.1016/j.humpath.2023.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/16/2023] [Accepted: 05/22/2023] [Indexed: 05/30/2023]
Abstract
The objective of this study was to determine if quantifying the microsatellite instability (MSI) phenotype could serve as a biomarker for clinical and immunologic features of deficient mismatch repair (dMMR) endometrial cancer (EC). Patients with EC undergoing hysterectomy whose tumors demonstrated dMMR were included. Immunohistochemistry (IHC) of mismatch repair proteins and polymerase chain reaction analysis of NR27, BAT25, BAT26, NR24, and NR21 microsatellite loci were performed on each case. The MSI phenotype was quantified by subtracting the number of nucleotides of each microsatellite in tumor tissue from the corresponding microsatellite in paired normal tissue and summing the absolute differences. This was termed marker sum (MS) and is a novel quantification. Tumor-infiltrating lymphocytes (TILs) were identified by IHC for CD3, CD4, and CD8 and quantified with digital image analysis. Tumor infiltration of lymphocytes and clinical characteristics were stratified by MS. Four hundred fifty-nine consecutive patients with dMMR EC were analyzed. MS ranged from 1 to 32. Post hoc, 2 cohorts were defined using receiver operating characteristic curves (MS less than 13 and MS greater than 12). With the exception of tumor grade, all clinical and pathologic features, all tumor characteristics, and the numbers of TILs were similar between cohorts. The MSI phenotype is highly variable in dMMR EC, and no correlation between the immune profile and the severity of the MSI phenotype was observed.
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Affiliation(s)
| | - Colin M Johnson
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Adam Robin
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Lyle Christiansen
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Mehenaz Hanbazazh
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, 35249, USA; Department of Pathology, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia
| | - Rebekah M Summey
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Darshan Chandrashaker
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, 35249, USA
| | - Shuko Harada
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, 35249, USA
| | - Williams H Bradley
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
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13
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Rüschoff J, Schildhaus HU, Rüschoff JH, Jöhrens K, Bocker-Edmonston T, Dietmaier W, Bläker H, Baretton G, Horst D, Dietel M, Hartmann A, Klauschen F, Merkelbach-Bruse S, Stenzinger A, Schöniger S, Tiemann M, Weichert W, Büttner R. [Testing deficient mismatch repair and microsatellite instability : A focused update. German version]. PATHOLOGIE (HEIDELBERG, GERMANY) 2023; 44:301-310. [PMID: 37548948 PMCID: PMC10457237 DOI: 10.1007/s00292-023-01209-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 08/08/2023]
Abstract
Testing to detect mismatch repair deficiency (dMMR) and high-grade microsatellite instability (MSI-H) has become an integral part of the routine diagnostic workup for colorectal cancer (CRC). While MSI was initially considered to be a possible indicator of a hereditary disposition to cancer (Lynch syndrome, LS), today the prediction of the therapy response to immune checkpoint inhibitors (ICI) is in the foreground. Corresponding recommendations and testing algorithms are available for use in primary diagnosis (reviewed in: Rüschoff et al. 2021).Given the increasing importance for routine use and the expanding indication spectrum of ICI therapies for non-CRCs, such as endometrial, small intestinal, gastric, and biliary tract cancers, an updated review of dMMR/MSI testing is presented. The focus is on the challenges in the assessment of immunohistochemical stains and the value of PCR-based procedures, considering the expanded ICI indication spectrum. A practice-oriented flowchart for everyday diagnostic decision-making is provided that considers new data on the frequency and type of discordances between MMR-IHC and MSI-PCR findings, and the possible role of Next Generation Sequencing in clarifying them. Reference is made to the significance of systematic quality assurance measures (e.g., QuIP MSI portal and multicenter proficiency testing), including regular continued training and education.
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Affiliation(s)
- Josef Rüschoff
- Discovery Life Sciences Biomarker GmbH und Pathologie Nordhessen, Germaniastr. 7, 34119, Kassel, Deutschland.
| | - Hans-Ulrich Schildhaus
- Discovery Life Sciences Biomarker GmbH und Pathologie Nordhessen, Germaniastr. 7, 34119, Kassel, Deutschland
| | - Jan Hendrik Rüschoff
- Institut für Pathologie und Molekularpathologie, Universitätsspital Zürich, Zürich, Schweiz
| | - Korinna Jöhrens
- Institut für Pathologie, Universitätsklinikum Carl Gustav Carus Dresden, Dresden, Deutschland
| | | | - Wolfgang Dietmaier
- Institut für Pathologie/Zentrum für molekularpathologische Diagnostik, Universität Regensburg, Regensburg, Deutschland
| | - Hendrik Bläker
- Institut für Pathologie, Universitätsklinikum Leipzig, Leipzig, Deutschland
| | - Gustavo Baretton
- Institut für Pathologie, Universitätsklinikum Carl Gustav Carus Dresden, Dresden, Deutschland
| | - David Horst
- Institut für Pathologie, Charité - Universitätsmedizin Berlin, Campus Mitte, Berlin, Deutschland
| | - Manfred Dietel
- Institut für Pathologie, Charité - Universitätsmedizin Berlin, Campus Mitte, Berlin, Deutschland
| | - Arndt Hartmann
- Pathologisches Institut, Universität Erlangen-Nürnberg, Erlangen, Deutschland
| | - Frederick Klauschen
- Pathologisches Institut, Ludwig-Maximilians-Universität München, München, Deutschland
| | | | - Albrecht Stenzinger
- Pathologisches Institut, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Sandra Schöniger
- Discovery Life Sciences Biomarker GmbH und Pathologie Nordhessen, Germaniastr. 7, 34119, Kassel, Deutschland
| | - Markus Tiemann
- Institut für Hämatopathologie Hamburg, Hamburg, Deutschland
| | - Wilko Weichert
- Institut für Pathologie, Technische Universität München, München, Deutschland
| | - Reinhard Büttner
- Institut für Pathologie, Universitätsklinikum Köln, Köln, Deutschland
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14
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Bartels S, Grote I, Wagner M, Boog J, Schipper E, Reineke‐Plaass T, Kreipe H, Lehmann U. Concordance in detection of microsatellite instability by PCR and NGS in routinely processed tumor specimens of several cancer types. Cancer Med 2023; 12:16707-16715. [PMID: 37376830 PMCID: PMC10501280 DOI: 10.1002/cam4.6293] [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: 03/18/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Microsatellite instability (MSI) occurs in several cancer types and is commonly used for prognosis and as a predictive biomarker for immune checkpoint therapy. METHODS We analyzed n = 263 formalin-fixed paraffin-embedded (FFPE) tumor specimens (127 colorectal cancer (CRC), 55 endometrial cancer (EC), 33 stomach adenocarcinoma (STAD), and 48 solid tumor specimens of other tumor types) with a capillary electrophoresis based multiplex monomorphic marker MSI-PCR panel and an amplicon-based NGS assay for microsatellite instability (MSI+). In total, n = 103 (39.2%) cases with a known defect of the DNA mismatch repair system (dMMR), determined by a loss in protein expression of MSH2/MSH6 (n = 48, 46.6%) or MLH1/PMS2 (n = 55, 53.4%), were selected. Cases with an isolated loss of MSH6 or PMS2 were excluded. RESULTS The overall sensitivity and specificity of the NGS assay in comparison with the MSI-PCR were 92.2% and 98.8%. With CRC cases a nearly optimal concordance was reached (sensitivity 98.1% and specificity 100.0%). Whereas EC cases only show a sensitivity of 88.6% and a specificity of 95.2%, caused by several cases with instability in less than five monomorphic markers, which could be difficult to analyze by NGS (subtle MSI+ phenotype). CONCLUSIONS MSI analysis of FFPE DNA by NGS is feasible and the results show a high concordance in comparison with the monomorphic marker MSI-PCR. However, cases with a subtle MSI+ phenotype, most frequently manifest in EC, have a risk of a false-negative result by NGS and should be preferentially analyzed by capillary electrophoresis.
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Affiliation(s)
- Stephan Bartels
- Institute of Pathology, Hannover Medical SchoolHannoverGermany
| | - Isabel Grote
- Institute of Pathology, Hannover Medical SchoolHannoverGermany
| | | | - Jannik Boog
- Institute of Pathology, Hannover Medical SchoolHannoverGermany
| | - Elisa Schipper
- Institute of Pathology, Hannover Medical SchoolHannoverGermany
| | | | - Hans Kreipe
- Institute of Pathology, Hannover Medical SchoolHannoverGermany
| | - Ulrich Lehmann
- Institute of Pathology, Hannover Medical SchoolHannoverGermany
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15
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Kim YN, Lee K, Park E, Park J, Lee YJ, Nam EJ, Kim SW, Kim S, Kim YT, Lee JY. Comprehensive genomic and immunohistochemical profiles and outcomes of immunotherapy in patients with recurrent or advanced cervical cancer. Front Oncol 2023; 13:1156973. [PMID: 37256181 PMCID: PMC10225637 DOI: 10.3389/fonc.2023.1156973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/21/2023] [Indexed: 06/01/2023] Open
Abstract
Purpose This study aimed to investigate genomic and immunohistochemical (IHC) profiles and immunotherapy outcomes in patients with cervical cancer. Methods Patients with recurrent cervical cancer who underwent tumor next-generation sequencing (NGS) with the TruSight Oncology 500 panel at Yonsei Cancer Center between June 2019 and February 2022, were identified. Patients who received treatment with checkpoint inhibitors during the same period were also identified. Clinical information, including histology, stage, human papillomavirus (HPV) genotype, IHCs profile, and therapy outcome, was reviewed. Results We identified 115 patients treated for recurrent cervical cancer, including 74 patients who underwent tumor NGS. Most of these 74 patients were initially diagnosed with advanced stage (63.6%) and had squamous cell histology (52.7%), and high-risk HPV (76.9%). Based on IHC analysis, the programmed death-ligand 1 combined positive score (PD-L1 CPS) was higher in patients with squamous cell carcinoma (SCC) than in those with adeno or mucinous types (P=0.020). HER2 receptor expression of 2+ and 3+ were identified in 5 and 1 patients, respectively, and significantly varied based on histology (p=0.002). Among the 74 patients, single nucleotide variants (SNVs) and copy number variations (CNVs) were identified in 60 (81.1%) and 13 patients (17.6%), respectively. The most common SNVs were PIK3CA, TP53, STK11, FAT1, and FBXW7 mutations. Mutations in PIK3CA, with two hotspot mutations, were frequently observed in patients with SCC histology, whereas mutations in TP53 were frequently observed in patients with non-SCC histology. Additionally, variations in FAT1 were exclusively identified in patients with SCC histology. Mutations in homologous recombination repair-associated genes were identified in 18 patients (24.3%). The most frequent CNV alteration was CCNE1 amplification. Moreover, among the 36 patients who underwent NGS and received immunotherapy, the tumor mutational burden and microsatellite instability were significantly correlated with immunotherapy duration. During this timeframe, 73 patients received pembrolizumab monotherapy, among whom a small portion showed a durable response. Conclusion Comprehensive genomic and IHC profiling may help identify potential candidates for targeted immunotherapy in patients with cervical cancer.
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Affiliation(s)
- Yoo-Na Kim
- Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyunglim Lee
- Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eunhyang Park
- Department of Pathology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Junsik Park
- Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong Jae Lee
- Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Ji Nam
- Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sang Wun Kim
- Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sunghoon Kim
- Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Tae Kim
- Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung-Yun Lee
- Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
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16
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Parente P, Grillo F, Vanoli A, Macciomei MC, Ambrosio MR, Scibetta N, Filippi E, Cataldo I, Baron L, Ingravallo G, Cazzato G, Melocchi L, Liserre B, Giordano C, Arborea G, Pilozzi E, Scapinello A, Aquilano MC, Gafà R, Battista S, Dal Santo L, Campora M, Carbone FG, Sartori C, Lazzi S, Hanspeter E, Angerilli V, Mastracci L, Fassan M. The Day-To-Day Practice of MMR and MSI Assessment in Colorectal Adenocarcinoma: What We Know and What We Still Need to Explore. Dig Dis 2023; 41:746-756. [PMID: 37231848 DOI: 10.1159/000531003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/03/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND The DNA mismatch repair (MMR) system is a highly preserved protein complex recognizing short insertions, short deletions, and single base mismatches during DNA replication and recombination. MMR protein status is identified using immunohistochemistry. Deficit in one or more MMR proteins, configuring deficient MMR status (dMMR), leads to frameshift mutations particularly clustered in microsatellite repeats. Thus, microsatellite instability (MSI) is the epiphenomenon of dMMR. In colorectal cancer (CRC), MMR/MSI status is a biomarker with prognostic and predictive value of resistance to 5-fluorouracil and response to immune checkpoint inhibitor therapy. SUMMARY In this Review, we describe the challenges the practicing pathologist may face in relation to the assessment of MMR/MSI status and any open issues which still need to be addressed, focusing on pre-analytic issues, pitfalls in the interpretation, and technical aspects of the different assays. KEY MESSAGES The current methods of detecting dMMR/MSI status have been optimized for CRCs, and whether these techniques can be applied to all tumor and specimen types is still not fully understood. Following the Food and Drug Administration (FDA), tissue/site agnostic drug approval of pembrolizumab for advanced/metastatic MSI tumors, MMR/MSI status in gastrointestinal tract is a common request from the oncologist. In this setting, several issues still need to be addressed, including criteria for sample adequacy.
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Affiliation(s)
- Paola Parente
- Unit of Pathology, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Federica Grillo
- Anatomic Pathology, Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
- Pathology Unit, Ospedale Policlinico San Martino IRCCS, Genoa, Italy
| | - Alessandro Vanoli
- Anatomic Pathology Unit, Department of Molecular Medicine, University of Pavia and Fondazione IRCCS San Matteo Hospital, Pavia, Italy
| | | | | | - Nunzia Scibetta
- UOC Anatomia Patologica ARNAS Ospedali Civico e G. Di Gristina, Palermo, Italy
| | | | - Ivana Cataldo
- Surgical Pathology Section University and Hospital Trust of Treviso, Treviso, Italy
| | - Luigi Baron
- Surgical Pathology Unit ASL Napoli 3 Sud, Ospedale S. Leonardo, Naples, Italy
| | - Giuseppe Ingravallo
- Section of Pathology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari "Aldo Moro", Bari, Italy
| | - Gerardo Cazzato
- Section of Pathology, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari "Aldo Moro", Bari, Italy
| | - Laura Melocchi
- Unit of Pathology, Department of Oncology, Fondazione Poliambulanza Hospital Institute, Brescia, Italy
| | - Barbara Liserre
- Unit of Pathology, Department of Oncology, Fondazione Poliambulanza Hospital Institute, Brescia, Italy
| | - Carla Giordano
- Pathology Unit, Università La Sapienza; Policlinico Umberto I, Rome, Italy
| | - Graziana Arborea
- Department of Pathology, National Institute of Gastroenterology IRCCS "S. de Bellis", Castellana Grotte, Italy
| | - Emanuela Pilozzi
- Department of Clinical and Molecular Medicine, "Sapienza" University of Rome, Rome, Italy
| | | | - Maria Costanza Aquilano
- Department of Hematology, Oncology and Molecular Medicine, ASST Grande Ospedale Metropolitano/Niguarda, Milan, Italy
| | - Roberta Gafà
- Anatomic Pathology Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Serena Battista
- Pathology Department, S. Maria della Misericordia Hospital, Udine, Italy
| | - Luca Dal Santo
- Department of Pathology, Ospedale dell'Angelo, Venice, Italy
| | - Michela Campora
- U.O.M. Anatomia e Istologia Patologica e Citodiagnostica Ospedale S. Chiara, Trento, Italy
| | | | - Chiara Sartori
- U.O.M. Anatomia e Istologia Patologica e Citodiagnostica Ospedale S. Chiara, Trento, Italy
| | - Stefano Lazzi
- Department of Medical Biotechnology, Section of Pathology, University of Siena, Siena, Italy
| | - Ester Hanspeter
- Department of Pathology, Provincial Hospital of Bolzano (SABES-ASDAA), Bolzano-Bozen, Italy
| | - Valentina Angerilli
- Surgical Pathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Luca Mastracci
- Anatomic Pathology, Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
- Pathology Unit, Ospedale Policlinico San Martino IRCCS, Genoa, Italy
| | - Matteo Fassan
- Veneto Institute of Oncology, IOV-IRCCS, Padua, Italy
- Surgical Pathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
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17
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Walker R, Georgeson P, Mahmood K, Joo JE, Makalic E, Clendenning M, Como J, Preston S, Joseland S, Pope BJ, Hutchinson RA, Kasem K, Walsh MD, Macrae FA, Win AK, Hopper JL, Mouradov D, Gibbs P, Sieber OM, O'Sullivan DE, Brenner DR, Gallinger S, Jenkins MA, Rosty C, Winship IM, Buchanan DD. Evaluating Multiple Next-Generation Sequencing-Derived Tumor Features to Accurately Predict DNA Mismatch Repair Status. J Mol Diagn 2023; 25:94-109. [PMID: 36396080 PMCID: PMC10424255 DOI: 10.1016/j.jmoldx.2022.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/27/2022] [Accepted: 10/20/2022] [Indexed: 11/16/2022] Open
Abstract
Identifying tumor DNA mismatch repair deficiency (dMMR) is important for precision medicine. Tumor features, individually and in combination, derived from whole-exome sequenced (WES) colorectal cancers (CRCs) and panel-sequenced CRCs, endometrial cancers (ECs), and sebaceous skin tumors (SSTs) were assessed for their accuracy in detecting dMMR. CRCs (n = 300) with WES, where mismatch repair status was determined by immunohistochemistry, were assessed for microsatellite instability (MSMuTect, MANTIS, MSIseq, and MSISensor), Catalogue of Somatic Mutations in Cancer tumor mutational signatures, and somatic mutation counts. A 10-fold cross-validation approach (100 repeats) evaluated the dMMR prediction accuracy for i) individual features, ii) Lasso statistical model, and iii) an additive feature combination approach. Panel-sequenced tumors (29 CRCs, 22 ECs, and 20 SSTs) were assessed for the top performing dMMR predicting features/models using these three approaches. For WES CRCs, 10 features provided >80% dMMR prediction accuracy, with MSMuTect, MSIseq, and MANTIS achieving ≥99% accuracy. The Lasso model achieved 98.3% accuracy. The additive feature approach, with three or more of six of MSMuTect, MANTIS, MSIseq, MSISensor, insertion-deletion count, or tumor mutational signature small insertion/deletion 2 + small insertion/deletion 7 achieved 99.7% accuracy. For the panel-sequenced tumors, the additive feature combination approach of three or more of six achieved accuracies of 100%, 95.5%, and 100% for CRCs, ECs, and SSTs, respectively. The microsatellite instability calling tools performed well in WES CRCs; however, an approach combining tumor features may improve dMMR prediction in both WES and panel-sequenced data across tissue types.
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Affiliation(s)
- Romy Walker
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia
| | - Peter Georgeson
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia
| | - Khalid Mahmood
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; Melbourne Bioinformatics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jihoon E Joo
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia
| | - Enes Makalic
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Victoria, Australia
| | - Mark Clendenning
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia
| | - Julia Como
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia
| | - Susan Preston
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia
| | - Sharelle Joseland
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia
| | - Bernard J Pope
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; Melbourne Bioinformatics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Ryan A Hutchinson
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia
| | - Kais Kasem
- Department of Clinical Pathology, Medicine Dentistry and Health Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Michael D Walsh
- Sullivan Nicolaides Pathology, Bowen Hills, Queensland, Australia
| | - Finlay A Macrae
- Genomic Medicine and Family Cancer Clinic, Royal Melbourne Hospital, Parkville, Melbourne, Victoria, Australia; Colorectal Medicine and Genetics, The Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Aung K Win
- University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Victoria, Australia
| | - John L Hopper
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Victoria, Australia
| | - Dmitri Mouradov
- Personalized Oncology Division, The Walter and Eliza Hall Institute of Medial Research, Parkville, Victoria, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Peter Gibbs
- Personalized Oncology Division, The Walter and Eliza Hall Institute of Medial Research, Parkville, Victoria, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia; Department of Medical Oncology, Western Health, Melbourne, Victoria, Australia
| | - Oliver M Sieber
- Personalized Oncology Division, The Walter and Eliza Hall Institute of Medial Research, Parkville, Victoria, Australia; Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia; Department of Surgery, The University of Melbourne, Parkville, Victoria, Australia; Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Dylan E O'Sullivan
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Darren R Brenner
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada; Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada; Department of Cancer Epidemiology and Prevention Research, Alberta Health Services, Calgary, Alberta, Canada
| | - Steven Gallinger
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Mark A Jenkins
- University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Victoria, Australia
| | - Christophe Rosty
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; Envoi Specialist Pathologists, Brisbane, Queensland, Australia; University of Queensland, Brisbane, Queensland, Australia
| | - Ingrid M Winship
- Genomic Medicine and Family Cancer Clinic, Royal Melbourne Hospital, Parkville, Melbourne, Victoria, Australia; Department of Medicine, The University of Melbourne, Parkville, Victoria, Australia
| | - Daniel D Buchanan
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, The University of Melbourne, Parkville, Victoria, Australia; Genomic Medicine and Family Cancer Clinic, Royal Melbourne Hospital, Parkville, Melbourne, Victoria, Australia.
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18
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Shinozaki-Ushiku A, Kunita A, Iwasaki A, Kato M, Yamazawa S, Abe H, Ushiku T. Microsatellite instability profiles of gastrointestinal cancers: comparison between non-colorectal and colorectal origin. Histopathology 2023; 82:466-477. [PMID: 36254632 DOI: 10.1111/his.14830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/20/2022] [Accepted: 10/14/2022] [Indexed: 01/20/2023]
Abstract
Microsatellite instability (MSI) is a major carcinogenic pathway with prognostic and predictive implications. The validity of polymerase chain reaction (PCR)-based MSI testing is well established in colorectal cancer; however, the data are limited in non-colorectal gastrointestinal cancers. The aim of this study is to clarify the detailed MSI profiles of non-colorectal gastrointestinal cancers and to investigate the differences from those of colorectal cancers. MSI testing was performed using paired tumour/normal tissues of 123 mismatch repair-deficient cancers detected by immunohistochemistry including 80 non-colorectal cancers (eight oesophagogastric junction (EGJ), 57 gastric and 15 small intestine) and 43 colorectal cancers. Fragment size analysis revealed that the mean nucleotide shifts of five markers (Promega panel) were the highest in the stomach (6.4), followed by colorectum (5.7), small intestine (5.0) and EGJ cancers (mean = 4.0; P = 0.015, versus stomach). All cases showed ≥ 1 nucleotide shift in ≥ 2 markers and were considered as MSI-high. However, when the cut-off was set to ≥ 3 nucleotide shifts in ≥ 2 markers, three EGJ (37.5%), two small intestine (13.3%) and two gastric (3.5%) cancers showed false-negative results. In addition, cases with isolated loss of MSH6 or PMS2 showed smaller nucleotide shifts than those in others. MSI testing is applicable to non-colorectal gastrointestinal cancers; however, a subset can yield false-negative results due to subtle nucleotide shift in multiple markers. Analysis of paired tumour/normal tissues and careful interpretation is necessary to avoid false-negative results and ensure appropriate treatment.
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Affiliation(s)
- Aya Shinozaki-Ushiku
- Department of Pathology, The University of Tokyo, Tokyo, Japan.,Division of Integrative Genomics, The University of Tokyo, Tokyo, Japan
| | - Akiko Kunita
- Department of Pathology, The University of Tokyo, Tokyo, Japan.,Next-Generation Precision Medicine Development Laboratory, The University of Tokyo, Tokyo, Japan
| | - Akiko Iwasaki
- Department of Pathology, The University of Tokyo, Tokyo, Japan
| | - Moe Kato
- Department of Pathology, The University of Tokyo, Tokyo, Japan
| | - Sho Yamazawa
- Department of Pathology, The University of Tokyo, Tokyo, Japan
| | - Hiroyuki Abe
- Department of Pathology, The University of Tokyo, Tokyo, Japan
| | - Tetsuo Ushiku
- Department of Pathology, The University of Tokyo, Tokyo, Japan
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19
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Huang W, Ho CL, Lee CT, Chen WL, Yang SC, Chow NH, Chen YL. High concordance rate of capillary electrophoresis workflow for microsatellite instability analysis and mismatch repair (MMR) immunostaining in colorectal carcinoma. PLoS One 2023; 18:e0284227. [PMID: 37098015 PMCID: PMC10128978 DOI: 10.1371/journal.pone.0284227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/27/2023] [Indexed: 04/26/2023] Open
Abstract
Microsatellite instability (MSI) is the primary predictive biomarker for therapeutic efficacies of cancer immunotherapies. Establishment of the MSI detection methods with high sensitivity and accessibility is important. Because MSI is mainly caused by defects in DNA mismatch repair (MMR), immunohistochemical (IHC) staining for the MMR proteins has been widely employed to predict the responses to immunotherapies. Thus, due to the high sensitivity of PCR, the MSI-PCR analysis has also been recommended as the primary approach as MMR IHC. This study aimed to develop a sensitive and convenient platform for daily MSI-PCR services. The routine workflow used a non-labeling QIAxcel capillary electrophoresis system which did not need the fluorescence labeling of the DNA products or usage of a multi-color fluorescence reader. Furthermore, the 15 and 1000 bp size alignment markers were used to precisely detect the size of the DNA product. A cohort of 336 CRC cases was examined by MSI-PCR on the five mononucleotide MSI markers recommended by ESMO. The PCR products were analyzed in the screening gels, followed by high-resolution gel electrophoresis for confirmation if needed. In the MSI-PCR tests, 90.1% (303/336) cases showed clear major shift patterns in the screening gels, and only 33 cases had to be re-examined using the high-resolution gels. The cohort was also analyzed by MMR IHC is, which revealed 98.5% (331/336) concordance with MSI-PCR. In the five discordant cases, 4 (3 MSI-L and 1 MSS) showed MSH6 loss. Besides, one case exhibited MSI-H but no loss in the MMR IHC. Further NGS analysis, in this case, found that missense and frameshift mutations in the PMS2 and MSH6 genes occurred, respectively. In conclusion, the non-labeling MSI-PCR capillary electrophoresis revealed high concordance with the MMR IHC analysis and is cost- and time-effective. Therefore, it shall be highly applicable in clinical laboratories.
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Affiliation(s)
- Wenya Huang
- Department of Pathology, Molecular Diagnosis Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Liang Ho
- Department of Pathology, Molecular Diagnosis Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Ta Lee
- Department of Pathology, Molecular Diagnosis Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wan-Li Chen
- Department of Pathology, Molecular Diagnosis Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Shu-Ching Yang
- Department of Pathology, Molecular Diagnosis Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Nan-Haw Chow
- Department of Pathology, Molecular Diagnosis Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Lin Chen
- Department of Pathology, Molecular Diagnosis Laboratory, National Cheng Kung University Hospital, Tainan, Taiwan
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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20
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Rafaniello-Raviele P, Betella I, Rappa A, Vacirca D, Tolva G, Guerrieri-Gonzaga A, Bertario L, Barberis M, Bonanni B, Marabelli M. Microsatellite instability evaluation: which test to use for endometrial cancer? J Clin Pathol 2023; 76:29-33. [PMID: 34312297 DOI: 10.1136/jclinpath-2021-207723] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 06/30/2021] [Indexed: 12/27/2022]
Abstract
AIMS Analysis of microsatellite instability (MSI) is strongly recommended in endometrial cancer (EC) and colorectal cancer to screen for Lynch syndrome, to predict prognosis and to determine optimal treatment and follow-up. In a large monoinstitutional series of ECs, we evaluated the reliability and accuracy of Idylla assay, a rapid, fully automated system to detect MSI, and we compared its performance with two routine reference methods. METHODS We evaluated MSI status in 174 formalin-fixed, paraffin-embedded EC tissue samples using immunohistochemistry (IHC) for mismatch repair (MMR) proteins and Idylla assay. Samples with discordant or equivocal results were analysed with a third technique, the Promega MSI kit. RESULTS Idylla MSI assay and IHC were highly concordant (overall agreement: 154/170=90.59%, 95% CI 85.26% to 94.12%). However, in four samples, MMR-IHC staining was equivocal; moreover, 16 cases showed discordant results, that is, MMR deficient using IHC and microsatellite stable using Idylla. These 20 samples were reanalysed using the MSI-Promega kit, which showed the same results of Idylla assay in 18/20 cases (overall agreement: 90%, 95% CI 69.90% to 97.21%). CONCLUSIONS Our results suggest that IHC is an efficient method to determine MMR status in ECs. However, the Idylla MSI assay is a rapid and reliable tool to define MSI status, and it could represent a valuable alternative to conventional MSI-PCR methods.
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Affiliation(s)
| | - Ilaria Betella
- Department of Gynecologic Oncology, IEO, European Institute of Oncology IRCCS, Milan, Lombardy, Italy
| | - Alessandra Rappa
- Division of Pathology, IEO, European Institute of Oncology IRCCS, Milan, Lombardy, Italy
| | - Davide Vacirca
- Division of Pathology, IEO, European Institute of Oncology IRCCS, Milan, Lombardy, Italy
| | - Gianluca Tolva
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Lombardy, Italy
| | - Aliana Guerrieri-Gonzaga
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Lombardy, Italy
| | - Lucio Bertario
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Lombardy, Italy
| | - Massimo Barberis
- Division of Pathology, IEO, European Institute of Oncology IRCCS, Milan, Lombardy, Italy
| | - Bernardo Bonanni
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Lombardy, Italy
| | - Monica Marabelli
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, Milan, Lombardy, Italy
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21
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Marques AC, Ferraro-Peyret C, Michaud F, Song L, Smith E, Fabre G, Willig A, Wong MML, Xing X, Chong C, Brayer M, Fenouil T, Hervieu V, Bancel B, Devouassoux M, Balme B, Meyronet D, Menu P, Lopez J, Xu Z. Improved NGS-based detection of microsatellite instability using tumor-only data. Front Oncol 2022; 12:969238. [PMID: 36465367 PMCID: PMC9714634 DOI: 10.3389/fonc.2022.969238] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 10/18/2022] [Indexed: 01/09/2024] Open
Abstract
Microsatellite instability (MSI) is a molecular signature of mismatch repair deficiency (dMMR), a predictive marker of immune checkpoint inhibitor therapy response. Despite its recognized pan-cancer value, most methods only support detection of this signature in colorectal cancer. In addition to the tissue-specific differences that impact the sensitivity of MSI detection in other tissues, the performance of most methods is also affected by patient ethnicity, tumor content, and other sample-specific properties. These limitations are particularly important when only tumor samples are available and restrict the performance and adoption of MSI testing. Here we introduce MSIdetect, a novel solution for NGS-based MSI detection. MSIdetect models the impact of indel burden and tumor content on read coverage at a set of homopolymer regions that we found are minimally impacted by sample-specific factors. We validated MSIdetect in 139 Formalin-Fixed Paraffin-Embedded (FFPE) clinical samples from colorectal and endometrial cancer as well as other more challenging tumor types, such as glioma or sebaceous adenoma or carcinoma. Based on analysis of these samples, MSIdetect displays 100% specificity and 96.3% sensitivity. Limit of detection analysis supports that MSIdetect is sensitive even in samples with relatively low tumor content and limited microsatellite instability. Finally, the results obtained using MSIdetect in tumor-only data correlate well (R=0.988) with what is obtained using tumor-normal matched pairs, demonstrating that the solution addresses the challenges posed by MSI detection from tumor-only data. The accuracy of MSI detection by MSIdetect in different cancer types coupled with the flexibility afforded by NGS-based testing will support the adoption of MSI testing in the clinical setting and increase the number of patients identified that are likely to benefit from immune checkpoint inhibitor therapy.
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Affiliation(s)
| | - Carole Ferraro-Peyret
- Cancer Research Centre of Lyon, INSERM 1052, Centre National de la Recherche Scientifique (CNRS) 5286, University of Lyon, Lyon, France
- Hospices Civils de Lyon, Biopathology of Tumours, GH Est (GHE) Hospital, Bron, France
| | | | - Lin Song
- SOPHiA GENETICS, Saint-Sulpice, Switzerland
| | - Ewan Smith
- SOPHiA GENETICS, Saint-Sulpice, Switzerland
| | | | | | | | | | | | | | - Tanguy Fenouil
- Hospices Civils de Lyon, Biopathology of Tumours, GH Est (GHE) Hospital, Bron, France
| | - Valérie Hervieu
- Hospices Civils de Lyon, Biopathology of Tumours, GH Est (GHE) Hospital, Bron, France
| | - Brigitte Bancel
- Hospices Civils de Lyon, Biopathology of Tumours, GH Est (GHE) Hospital, Bron, France
| | - Mojgan Devouassoux
- Hospices Civils de Lyon, Department of Anatomopathology, Lyon-Sud Hospital, Lyon, France
| | - Brigitte Balme
- Hospices Civils de Lyon, Department of Anatomopathology, Lyon-Sud Hospital, Lyon, France
| | - David Meyronet
- Hospices Civils de Lyon, Biopathology of Tumours, GH Est (GHE) Hospital, Bron, France
| | | | - Jonathan Lopez
- Cancer Research Centre of Lyon, INSERM 1052, Centre National de la Recherche Scientifique (CNRS) 5286, University of Lyon, Lyon, France
- Hospices Civils de Lyon, Biochemistry and Molecular Biology Department, Lyon-Sud Hospital, Lyon, France
| | - Zhenyu Xu
- SOPHiA GENETICS, Saint-Sulpice, Switzerland
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22
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Detecting mismatch repair deficiency in solid neoplasms: immunohistochemistry, microsatellite instability, or both? Mod Pathol 2022; 35:1515-1528. [PMID: 35668150 DOI: 10.1038/s41379-022-01109-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 05/08/2022] [Accepted: 05/10/2022] [Indexed: 12/25/2022]
Abstract
In managing patients with solid tumors, the value of detecting the status of tumor DNA mismatch repair function is widely recognized. Mismatch repair protein immunohistochemistry and molecular microsatellite instability testing constitute the two major test modalities currently in use, yet each is associated with caveats and limitations that can be consequential. Most notably, the traditional approach of defining mismatch repair protein immunohistochemistry abnormality by complete loss of staining in all tumor cells is evolving. Partial or clonal loss is becoming recognized as a manifestation of gene abnormality; in some cases, such clonal loss is associated with germline pathogenic variants. The current criteria and cutoff values for defining microsatellite instability-high are developed primarily according to colorectal tumors. Non-colorectal cases, and occasionally even colorectal tumors, that are mismatch repair-deficient by immunohistochemistry but not microsatellite instability-high by current standards are being recognized. Emerging data suggest that these immunohistochemistry abnormal / non-microsatellite instability-high cases warrant further genetic workup for Lynch syndrome detection. Whether these tumors respond to immunotherapy is a question still to be addressed. It is imperative that pathologists as well as clinicians and investigators be aware of such intricacies regarding routine immunohistochemistry and microsatellite instability testing and the results they generate. This review summarizes our current understanding of the advantages and limitations of these tests and offer our view on what constitutes the most optimal strategy in test selection and how best to utilize case context to enhance the interpretation of the test results.
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23
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Imyanitov E, Sokolenko A. Integrative Genomic Tests in Clinical Oncology. Int J Mol Sci 2022; 23:13129. [PMID: 36361916 PMCID: PMC9656402 DOI: 10.3390/ijms232113129] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 09/12/2023] Open
Abstract
Many clinical decisions in oncology practice rely on the presence or absence of an alteration in a single genetic locus, be it a pathogenic variant in a hereditary cancer gene or activating mutation in a drug target. In addition, there are integrative tests that produce continuous variables and evaluate complex characteristics of the entire tumor genome. Microsatellite instability (MSI) analysis identifies tumors with the accumulation of mutations in short repetitive nucleotide sequences. This procedure is utilized in Lynch syndrome diagnostic pipelines and for the selection of patients for immunotherapy. MSI analysis is well-established for colorectal malignancies, but its applications in other cancer types lack standardization and require additional research. Homologous repair deficiency (HRD) indicates tumor sensitivity to PARP inhibitors and some cytotoxic drugs. HRD-related "genomic scars" are manifested by a characteristic pattern of allelic imbalances, accumulation of deletions with flanking homology, and specific mutation signatures. The detection of the genetic consequences of HRD is particularly sophisticated and expensive, as it involves either whole genome sequencing (WGS) or the utilization of large next-generation sequencing (NGS) panels. Tumor mutation burden (TMB) can be determined by whole exome sequencing (WES) or middle-throughput NGS multigene testing. Although TMB is regarded as an agnostic indicator of tumor sensitivity to immunotherapy, the clinical utility of this test is proven only for a few cancer types.
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Affiliation(s)
- Evgeny Imyanitov
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St. Petersburg, Russia
- Department of Medical Genetics, St.-Petersburg Pediatric Medical University, 194100 St. Petersburg, Russia
| | - Anna Sokolenko
- Department of Tumor Growth Biology, N.N. Petrov Institute of Oncology, 197758 St. Petersburg, Russia
- Department of Medical Genetics, St.-Petersburg Pediatric Medical University, 194100 St. Petersburg, Russia
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24
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Microsatellite Instability: From the Implementation of the Detection to a Prognostic and Predictive Role in Cancers. Int J Mol Sci 2022; 23:ijms23158726. [PMID: 35955855 PMCID: PMC9369169 DOI: 10.3390/ijms23158726] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/26/2022] [Accepted: 08/03/2022] [Indexed: 02/07/2023] Open
Abstract
Microsatellite instability (MSI) has been identified in several tumors arising from either germline or somatic aberration. The presence of MSI in cancer predicts the sensitivity to immune checkpoint inhibitors (ICIs), particularly PD1/PD-L1 inhibitors. To date, the predictive role of MSI is currently used in the selection of colorectal cancer patients for immunotherapy; moreover, the expansion of clinical trials into other cancer types may elucidate the predictive value of MSI for non-colorectal tumors. In clinical practice, several assays are used for MSI testing, including immunohistochemistry (IHC), polymerase chain reaction (PCR) and next-generation sequencing (NGS). In this review, we provide an overview of MSI in various cancer types, highlighting its potential predictive/prognostic role and the clinical trials performed. Finally, we focus on the comparison data between the different assays used to detect MSI in clinical practice.
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25
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Adamczyk-Gruszka O, Horecka-Lewitowicz A, Strzelecka A, Wawszczak-Kasza M, Gruszka J, Lewitowicz P. The Roles of TP53 and FGFR2 in Progress Made Treating Endometrial Cancer. Diagnostics (Basel) 2022; 12:diagnostics12071737. [PMID: 35885641 PMCID: PMC9316851 DOI: 10.3390/diagnostics12071737] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/04/2022] [Accepted: 07/07/2022] [Indexed: 11/18/2022] Open
Abstract
The morbidity and mortality caused by endometrial cancer (EC) is still rising worldwide. In recent years, a new system of tumor stratification has been proposed based on POLE-mutational status, TP53, and microsatellite stability status. The aim of the study was to analyze a vast panel on the genes potentially involved in the genesis of endometrial cancer in the Polish population. One hundred and three white female patients with confirmed endometrial cancer were enrolled on the study. We performed sequencing using the Hot Spot Illumina panel and microsatellite stability with immunohistochemistry. We confirmed a key role of the TP53 mutation in progress to high-grade EC and parallelly some role of FGFR2 mutation. Moreover, our data present a vast landscape of mutations in EC and their polymorphism. We reported the meaning of FGFR2 mutation and TP53 (high copy number) in high-grade ECs. Our observation in MSI contribution is comparable with other studies. Finally, we see a strong need for the implementation of the TCGA classification.
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Affiliation(s)
- Olga Adamczyk-Gruszka
- Department of Gynecology and Obstetrics, Collegium Medicum, Jan Kochanowski University, 25-369 Kielce, Poland
- Department of Obstetrics and Gynecology, Province Hospital, 25-369 Kielce, Poland
- Correspondence:
| | - Agata Horecka-Lewitowicz
- Institute of Health Sciences, Jan Kochanowski University, 25-369 Kielce, Poland; (A.H.-L.); (A.S.)
| | - Agnieszka Strzelecka
- Institute of Health Sciences, Jan Kochanowski University, 25-369 Kielce, Poland; (A.H.-L.); (A.S.)
| | - Monika Wawszczak-Kasza
- Department of Surgical Medicine with the Laboratory of Medical Genetics, Institute of Medical Sciences, Jan Kochanowski University, 25-369 Kielce, Poland;
| | - Jakub Gruszka
- 2nd Department of Obstetrics and Gynecology, Medical University of Warsaw, 02-091 Warszawa, Poland;
| | - Piotr Lewitowicz
- Department of Clinical and Experimental Pathology, Institute of Medical Sciences, Jan Kochanowski University, 25-369 Kielce, Poland;
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26
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Villafranca-Magdalena B, Masferrer-Ferragutcasas C, Lopez-Gil C, Coll-de la Rubia E, Rebull M, Parra G, García Á, Reques A, Cabrera S, Colas E, Gil-Moreno A, Moiola CP. Genomic Validation of Endometrial Cancer Patient-Derived Xenograft Models as a Preclinical Tool. Int J Mol Sci 2022; 23:ijms23116266. [PMID: 35682944 PMCID: PMC9181722 DOI: 10.3390/ijms23116266] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/24/2022] [Accepted: 05/31/2022] [Indexed: 12/12/2022] Open
Abstract
Endometrial cancer (EC) is the second most frequent gynecological cancer worldwide. Although improvements in EC classification have enabled an accurate establishment of disease prognosis, women with a high-risk or recurrent EC face a dramatic situation due to limited further treatment options. Therefore, new strategies that closely mimic the disease are required to maximize drug development success. Patient-derived xenografts (PDXs) are widely recognized as a physiologically relevant preclinical model. Hence, we propose to molecularly and histologically validate EC PDX models. To reveal the molecular landscape of PDXs generated from 13 EC patients, we performed histological characterization and whole-exome sequencing analysis of tumor samples. We assessed the similarity between PDXs and their corresponding patient's tumor and, additionally, to an extended cohort of EC patients obtained from The Cancer Genome Atlas (TCGA). Finally, we performed functional enrichment analysis to reveal differences in molecular pathway activation in PDX models. We demonstrated that the PDX models had a well-defined and differentiated molecular profile that matched the genomic profile described by the TCGA for each EC subtype. Thus, we validated EC PDX's potential to reliably recapitulate the majority of histologic and molecular EC features. This work highlights the importance of a thorough characterization of preclinical models for the improvement of the success rate of drug-screening assays for personalized medicine.
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Affiliation(s)
- Beatriz Villafranca-Magdalena
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- School of Medicine, The Autonomous University of Barcelona, 08193 Bellaterra, Spain
| | - Carina Masferrer-Ferragutcasas
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- School of Medicine, The Autonomous University of Barcelona, 08193 Bellaterra, Spain
| | - Carlos Lopez-Gil
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- School of Medicine, The Autonomous University of Barcelona, 08193 Bellaterra, Spain
| | - Eva Coll-de la Rubia
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- School of Medicine, The Autonomous University of Barcelona, 08193 Bellaterra, Spain
- Biomedical Research Center Network (CIBERONC), Monforte de Lemos 3–5, 28029 Madrid, Spain
| | - Marta Rebull
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- School of Medicine, The Autonomous University of Barcelona, 08193 Bellaterra, Spain
| | - Genis Parra
- National Center for Genomic Analysis—Genomic Regulation Center (CNAG-CRG), Scientific Park of Barcelona, 08028 Barcelona, Spain;
| | - Ángel García
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- Pathology Department, Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain
| | - Armando Reques
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- Pathology Department, Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain
| | - Silvia Cabrera
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- School of Medicine, The Autonomous University of Barcelona, 08193 Bellaterra, Spain
- Gynecological Oncology Department, Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d´Hebron 119–129, 08035 Barcelona, Spain
| | - Eva Colas
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- School of Medicine, The Autonomous University of Barcelona, 08193 Bellaterra, Spain
- Biomedical Research Center Network (CIBERONC), Monforte de Lemos 3–5, 28029 Madrid, Spain
- Correspondence: (E.C.); (C.P.M.)
| | - Antonio Gil-Moreno
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- School of Medicine, The Autonomous University of Barcelona, 08193 Bellaterra, Spain
- Biomedical Research Center Network (CIBERONC), Monforte de Lemos 3–5, 28029 Madrid, Spain
- Gynecological Oncology Department, Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d´Hebron 119–129, 08035 Barcelona, Spain
| | - Cristian P. Moiola
- Biomedical Research Group in Gynecology, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron University Hospital, Vall d’Hebron Barcelona Hospital Campus, Passeig Vall d’Hebron 119–129, 08035 Barcelona, Spain; (B.V.-M.); (C.M.-F.); (C.L.-G.); (E.C.-d.l.R.); (M.R.); (Á.G.); (A.R.); (S.C.); (A.G.-M.)
- School of Medicine, The Autonomous University of Barcelona, 08193 Bellaterra, Spain
- Correspondence: (E.C.); (C.P.M.)
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Gatius S, Velasco A, Varela M, Cuatrecasas M, Jares P, Setaffy L, Bonhomme B, Santon A, Lindemann K, Croce S, Davidson B, Lax S, Palacios J, Matias-Guiu X. Comparison of the Idylla™ MSI assay with the Promega™ MSI Analysis System and immunohistochemistry on formalin-fixed paraffin-embedded tissue of endometrial carcinoma: results from an international, multicenter study. Virchows Arch 2022; 480:1031-1039. [DOI: 10.1007/s00428-022-03291-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/10/2022] [Accepted: 01/30/2022] [Indexed: 12/11/2022]
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Samaison L, Uguen A. Idylla MSI test combined with immunohistochemistry is a valuable and cost effective strategy to search for microsatellite instable tumors of noncolorectal origin. Pathol Int 2022; 72:234-241. [PMID: 35083825 DOI: 10.1111/pin.13208] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/06/2022] [Indexed: 11/29/2022]
Abstract
Recent diagnostic and therapeutic progresses have increased the need of searching for microsatellite instability (MSI) in cancer samples beyond colorectal cancer (CRC) ones. The availability of the fully-automated Idylla MSI test (Biocartis), implementable easily in pathology laboratories, offers the opportunity to reconsider MSI diagnostic strategies towards rapid and in-house diagnosis. In this study, we evaluate the performances and cost-effectiveness of an in-house Idylla MSI testing in comparison with an externalized testing of about 54 non-CRC tumor samples. The Idylla MSI test concluded in valid analyses in 53/54 (98.1%) tumor samples with MSI statuses concordant with external molecular and immunohistochemical testing in 50/53 (94.3%) samples. Wrong Idylla MSI test results were obtained in 3/53 (5.7%) samples. Manual checking of microsatellite analyses results and confrontation between the results of Idylla and immunohistochemical analyses have permitted detection and correction of the discrepancies. The implementation of an in-house Idylla MSI testing for non-CRC tumors, necessarily combined with immunohistochemistry searching for MSI tumors, appeared not only valuable in terms of performances, but also in terms of cost-effectiveness without increasing the analyses-related costs but decreasing dramatically their turnaround times to one single working day.
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Affiliation(s)
| | - Arnaud Uguen
- CHRU Brest, Service d'anatomie et cytologie pathologiques, Brest, France.,LBAI, UMR1227, Inserm, CHU de Brest, Université de Brest, Brest, France
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29
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Bourhis A, Remoué A, Samaison L, Uguen A. Diagnostic mutationnel rapide Idylla™ : applications théranostiques actuelles et futures. Ann Pathol 2022; 42:329-343. [DOI: 10.1016/j.annpat.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 12/07/2021] [Accepted: 12/12/2021] [Indexed: 10/19/2022]
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Mismatch Repair Deficiency and Somatic Mutations in Human Sinonasal Tumors. Cancers (Basel) 2021; 13:cancers13236081. [PMID: 34885191 PMCID: PMC8657279 DOI: 10.3390/cancers13236081] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 01/12/2023] Open
Abstract
Simple Summary Sinonasal carcinomas are rare tumors with an overall poor prognosis. Due to limitations in local therapeutic approaches, systemic neo-adjuvant or adjuvant therapies are becoming increasingly important in order to improve patient outcome. This study aimed to examine potentially therapeutic targetable molecular alterations in different sinonasal tumors, including deficiency in mismatch repair proteins and microsatellite instability as well as driver mutations. According to our results, immunohistochemical (IHC) analysis of mismatch repair (MMR) proteins and sequencing-based panel analysis should be integrated into the diagnostics of clinically aggressive inverted sinonasal papilloma (ISP) and sinonasal squamous cell carcinoma (SNSCC) in order to enable the therapeutic possibility of a targeted therapy. Abstract Due to limitations in local therapy approaches for sinonasal tumors, improvement in systemic therapies plays a pivotal role for prolongation of the patient’s survival. The aim of this study was to examine potential biomarkers, including deficiency in mismatch repair proteins (dMMR)/microsatellite instability (MSI-H) in sinonasal cancers and their precancerous lesions. A comprehensive analysis of 10 sinonasal cancer cell lines by whole exome sequencing, screening 174 sinonasal tumors by immunohistochemistry (IHC) for mismatch repair deficiency and next generation sequencing (NGS) of 136 tumor samples revealed a dMMR/MSI-H sinonasal squamous cell carcinoma (SNSCC) cell line based on a somatic missense mutation in MLH1 and an overall frequency of dMMR/MSI-H SNSCC of 3.2% (4/125). Targetable EGFR mutations were found in 89.3% (25/28) of inverted sinonasal papilloma (ISP) and in 60% (6/10) of ISP-associated carcinomas. While PIK3CA and EGFR mutations were not mutually exclusive, KRAS mutated tumors were an EGFR-wildtype. The effect of potential driver mutations in FGFR2, FGFR3, BRAF, HRAS, MAP2K1, PTEN, NOTCH1 and CARD11 need further investigation. Our results suggest that biomarker testing, including MMR-IHC and NGS panel analysis, should be integrated into the diagnostics of clinically aggressive ISPs and SNSCC to assess prognosis and facilitate therapeutic decisions.
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Rüschoff J, Baretton G, Bläker H, Dietmaier W, Dietel M, Hartmann A, Horn LC, Jöhrens K, Kirchner T, Knüchel R, Mayr D, Merkelbach-Bruse S, Schildhaus HU, Schirmacher P, Tiemann M, Tiemann K, Weichert W, Büttner R. MSI testing : What's new? What should be considered? DER PATHOLOGE 2021; 42:110-118. [PMID: 34477921 DOI: 10.1007/s00292-021-00948-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/10/2021] [Indexed: 12/12/2022]
Abstract
Based on new trial data regarding immune checkpoint inhibitors (ICIs), the detection of high-grade microsatellite instability (MSI-H) or underlying deficient mismatch repair protein (dMMR) is now becoming increasingly important for predicting treatment response. For the first time, a PD‑1 ICI (pembrolizumab) has been approved by the European Medicines Agency (EMA) for first-line treatment of advanced (stage IV) dMMR/MSI‑H colorectal cancer (CRC). Further indications, such as dMMR/MSI‑H endometrial carcinoma (EC), have already succeeded (Dostarlimab, 2nd line treatment) and others are expected to follow before the end of 2021. The question of optimal testing in routine diagnostics should therefore be re-evaluated. Based on a consideration of the strengths and weaknesses of the widely available methods (immunohistochemistry and PCR), a test algorithm is proposed that allows quality assured, reliable, and cost-effective dMMR/MSI‑H testing. For CRC and EC, testing is therefore already possible at the primary diagnosis stage, in line with international recommendations (NICE, NCCN). The clinician is therefore enabled from the outset to consider not only the predictive but also the prognostic and predispositional implications of such a test when counseling patients and formulating treatment recommendations. As a basis for quality assurance, participation in interlaboratory comparisons and continuous documentation of results (e.g., QuIP Monitor) are strongly recommended.
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Affiliation(s)
- Josef Rüschoff
- Institute of Pathology, Nordhessen und Targos Molecular Pathology GmbH, Germaniastr. 7, 34119, Kassel, Germany.
| | - Gustavo Baretton
- Institute of Pathology, University Hospital Carl Gustav Carus, Fetscherstr. 74, 01307, Dresden, Germany
| | - Hendrik Bläker
- Institute of Pathology, University Hospital Leipzig, Liebigstr. 26, Gebäude G, 04103, Leipzig, Germany
| | - Wolfgang Dietmaier
- Institute of Pathology, Center of Molecular Pathological Diagnostics, Universität Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Manfred Dietel
- Institute of Pathology, University Hospital Charité, Campus Mitte, Charitéplatz 1, 10117, Berlin, Germany
| | - Arndt Hartmann
- Pathological Institute, University Erlangen-Nürnberg, Krankenhausstr. 8-10, 91054, Erlangen, Germany
| | - Lars-Christian Horn
- Institute of Pathology, University Hospital Leipzig, Liebigstr. 26, Gebäude G, 04103, Leipzig, Germany
| | - Korinna Jöhrens
- Institute of Pathology, University Hospital Carl Gustav Carus, Fetscherstr. 74, 01307, Dresden, Germany
| | - Thomas Kirchner
- Pathological Institute, Ludwig-Maximilians-University Munich, Thalkirchner Str. 36, 80337, München, Germany
| | - Ruth Knüchel
- Institute of Pathology, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Germany
| | - Doris Mayr
- Pathological Institute, Ludwig-Maximilians-University Munich, Thalkirchner Str. 36, 80337, München, Germany
| | | | - Hans-Ulrich Schildhaus
- Institute of Pathology, University Hospital Essen, Hufelandstraße 55, 45147, Essen, Germany
| | - Peter Schirmacher
- Pathological Institute, University Hospital Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany
| | - Markus Tiemann
- Fangdieckstr. 75a, Institute of Hematopathology Hamburg, 22547, Hamburg, Germany
| | - Katharina Tiemann
- Fangdieckstr. 75a, Institute of Hematopathology Hamburg, 22547, Hamburg, Germany
| | - Wilko Weichert
- Institute of Pathology, Technical University Munich, Trogerstr. 18, 81675, München, Germany
| | - Reinhard Büttner
- Institute of Pathology, University Hospital Cologne, Kerpener Str. 62, 50937, Köln, Germany
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Evaluation of Micro Satellite Instability and Mismatch Repair Status in Different Solid Tumors: A Multicenter Analysis in a Real World Setting. Cells 2021. [PMID: 34440647 DOI: 10.3390/cells1008187828] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
Immune-checkpoint inhibitors (ICIs) play a key role in the treatment of advanced stage colorectal cancer (CRC) patients featuring a deficient DNA mismatch repair (dMMR) system or a high microsatellite instability (MSI-H) profile. However, beyond the established role in CRC patients, ICIs have highly proven efficacy in other solid tumors featuring MSI-H/dMMR status represented by endometrial, gastric, ovarian, prostatic, and pancreatic carcinomas (EC, GC, OC, PrC, and PaC). Our aim was to compare the concordance rates among the Idylla™ MSI test, TapeStation 4200, and immunohistochemical (IHC) analysis in assessing MSI-H/dMMR status in EC, GC, OC, PrC, and PaC patients. The Sanger sequencing-based Titano MSI test was used in discordant cases. One hundred and eighty-five cases (n = 40 PrC, n = 39 GC, n = 38 OC, n = 35 PaC, and n = 33 EC) were retrospectively selected. MMR protein expression was evaluated by IHC. After DNA quality and quantity evaluations, the IdyllaTM and TapeStation 4200 platforms were adopted for the evaluation of MSI status. Remarkably, compared to IHC, the Idylla™ platform achieved a global concordance rate of 94.5% (154/163) for the microsatellite stable (MSS)/proficient MMR (pMMR) cases and 77.3% (17/22) for the MSI-H/dMMR cases. Similarly, a global concordance rate of 91.4% (149/163) and 68.2% (15/22) for MSS/pMMR and MSI-H/dMMR cases was also identified between IHC and the TapeStation 4200 microfluidic system. In addition, a global concordance of 93.1% (148/159) and 69.2% (18/26) for MSS/pMMR and MSI-H/dMMR cases was observed between the Idylla™ and TapeStation 4200 platforms. Discordant cases were analyzed using the Titano MSI kit. Overall, our data pinpointed a central role for molecular techniques in the diagnostic evaluation of dMMR/MSI-H status not only in CRC patients but also in other types of solid tumors.
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Malapelle U, Parente P, Pepe F, De Luca C, Pisapia P, Sgariglia R, Nacchio M, Gragnano G, Russo G, Conticelli F, Bellevicine C, Vigliar E, Iaccarino A, Covelli C, Balistreri M, Clemente C, Perrone G, Danza A, Scaramuzzi F, Fassan M, Troncone G, Graziano P. Evaluation of Micro Satellite Instability and Mismatch Repair Status in Different Solid Tumors: A Multicenter Analysis in a Real World Setting. Cells 2021; 10:cells10081878. [PMID: 34440647 PMCID: PMC8391221 DOI: 10.3390/cells10081878] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 12/15/2022] Open
Abstract
Immune-checkpoint inhibitors (ICIs) play a key role in the treatment of advanced stage colorectal cancer (CRC) patients featuring a deficient DNA mismatch repair (dMMR) system or a high microsatellite instability (MSI-H) profile. However, beyond the established role in CRC patients, ICIs have highly proven efficacy in other solid tumors featuring MSI-H/dMMR status represented by endometrial, gastric, ovarian, prostatic, and pancreatic carcinomas (EC, GC, OC, PrC, and PaC). Our aim was to compare the concordance rates among the Idylla™ MSI test, TapeStation 4200, and immunohistochemical (IHC) analysis in assessing MSI-H/dMMR status in EC, GC, OC, PrC, and PaC patients. The Sanger sequencing-based Titano MSI test was used in discordant cases. One hundred and eighty-five cases (n = 40 PrC, n = 39 GC, n = 38 OC, n = 35 PaC, and n = 33 EC) were retrospectively selected. MMR protein expression was evaluated by IHC. After DNA quality and quantity evaluations, the IdyllaTM and TapeStation 4200 platforms were adopted for the evaluation of MSI status. Remarkably, compared to IHC, the Idylla™ platform achieved a global concordance rate of 94.5% (154/163) for the microsatellite stable (MSS)/proficient MMR (pMMR) cases and 77.3% (17/22) for the MSI-H/dMMR cases. Similarly, a global concordance rate of 91.4% (149/163) and 68.2% (15/22) for MSS/pMMR and MSI-H/dMMR cases was also identified between IHC and the TapeStation 4200 microfluidic system. In addition, a global concordance of 93.1% (148/159) and 69.2% (18/26) for MSS/pMMR and MSI-H/dMMR cases was observed between the Idylla™ and TapeStation 4200 platforms. Discordant cases were analyzed using the Titano MSI kit. Overall, our data pinpointed a central role for molecular techniques in the diagnostic evaluation of dMMR/MSI-H status not only in CRC patients but also in other types of solid tumors.
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Affiliation(s)
- Umberto Malapelle
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Paola Parente
- Unit of Pathology, Fondazione IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy; (P.P.); (C.C.); (C.C.); (G.P.); (A.D.); (F.S.); (P.G.)
| | - Francesco Pepe
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Caterina De Luca
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Pasquale Pisapia
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Roberta Sgariglia
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Mariantonia Nacchio
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Gianluca Gragnano
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Gianluca Russo
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Floriana Conticelli
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Claudio Bellevicine
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Elena Vigliar
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Antonino Iaccarino
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
| | - Claudia Covelli
- Unit of Pathology, Fondazione IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy; (P.P.); (C.C.); (C.C.); (G.P.); (A.D.); (F.S.); (P.G.)
| | - Mariangela Balistreri
- Surgical Pathology Unit, Department of Medicine (DIMED), University of Padua, 35128 Padua, Italy; (M.B.); (M.F.)
| | - Celeste Clemente
- Unit of Pathology, Fondazione IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy; (P.P.); (C.C.); (C.C.); (G.P.); (A.D.); (F.S.); (P.G.)
| | - Giovanni Perrone
- Unit of Pathology, Fondazione IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy; (P.P.); (C.C.); (C.C.); (G.P.); (A.D.); (F.S.); (P.G.)
| | - Angela Danza
- Unit of Pathology, Fondazione IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy; (P.P.); (C.C.); (C.C.); (G.P.); (A.D.); (F.S.); (P.G.)
| | - Fabio Scaramuzzi
- Unit of Pathology, Fondazione IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy; (P.P.); (C.C.); (C.C.); (G.P.); (A.D.); (F.S.); (P.G.)
| | - Matteo Fassan
- Surgical Pathology Unit, Department of Medicine (DIMED), University of Padua, 35128 Padua, Italy; (M.B.); (M.F.)
- Veneto Institute of Oncology, IOV-IRCCS, 35128 Padua, Italy
| | - Giancarlo Troncone
- Department of Public Health, University of Naples Federico II, 80131 Naples, Italy; (U.M.); (F.P.); (C.D.L.); (P.P.); (R.S.); (M.N.); (G.G.); (G.R.); (F.C.); (C.B.); (E.V.); (A.I.)
- Correspondence:
| | - Paolo Graziano
- Unit of Pathology, Fondazione IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy; (P.P.); (C.C.); (C.C.); (G.P.); (A.D.); (F.S.); (P.G.)
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Rüschoff J, Baretton G, Bläker H, Dietmaier W, Dietel M, Hartmann A, Horn LC, Jöhrens K, Kirchner T, Knüchel R, Mayr D, Merkelbach-Bruse S, Schildhaus HU, Schirmacher P, Tiemann M, Tiemann K, Weichert W, Büttner R. [MSI testing : What is new? What should be considered? German version]. DER PATHOLOGE 2021; 42:414-423. [PMID: 34043067 DOI: 10.1007/s00292-021-00944-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/25/2021] [Indexed: 12/21/2022]
Abstract
Based on new trial data regarding immune checkpoint inhibitors (ICIs), the detection of high-grade microsatellite instability (MSI-H) or underlying deficient mismatch repair protein (dMMR) is now becoming increasingly important for predicting treatment response. For the first time, a PD‑1 ICI (pembrolizumab) has been approved by the European Medicines Agency (EMA) for first-line treatment of advanced (stage IV) dMMR/MSI‑H colorectal cancer (CRC). Further indications, such as dMMR/MSI‑H endometrial carcinoma (EC), have already succeeded (Dostarlimab, 2nd line treatment) and others are expected to follow before the end of 2021. The question of optimal testing in routine diagnostics should therefore be re-evaluated. Based on a consideration of the strengths and weaknesses of the widely available methods (immunohistochemistry and PCR), a test algorithm is proposed that allows quality assured, reliable, and cost-effective dMMR/MSI‑H testing. For CRC and EC, testing is therefore already possible at the primary diagnosis stage, in line with international recommendations (NICE, NCCN). The clinician is therefore enabled from the outset to consider not only the predictive but also the prognostic and predispositional implications of such a test when counseling patients and formulating treatment recommendations. As a basis for quality assurance, participation in interlaboratory comparisons and continuous documentation of results (e.g., QuIP Monitor) are strongly recommended.
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Affiliation(s)
- Josef Rüschoff
- Institut für Pathologie Nordhessen, TARGOS Molecular Pathology GmbH, Germaniastr. 7, 34119, Kassel, Deutschland.
| | - Gustavo Baretton
- Institut für Pathologie, Universitätsklinikum Carl Gustav Carus, Fetscherstr. 74, 01307, Dresden, Deutschland
| | - Hendrik Bläker
- Institut für Pathologie, Universitätsklinikum Leipzig, Liebigstr. 26, Gebäude G, 04103, Leipzig, Deutschland
| | - Wolfgang Dietmaier
- Institut für Pathologie/Zentrum für molekularpathologische Diagnostik, Universität Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Deutschland
| | - Manfred Dietel
- Institut für Pathologie, Campus Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Deutschland
| | - Arndt Hartmann
- Pathologisches Institut, Universität Erlangen-Nürnberg, Krankenhausstr. 8-10, 91054, Erlangen, Deutschland
| | - Lars-Christian Horn
- Institut für Pathologie, Universitätsklinikum Leipzig, Liebigstr. 26, Gebäude G, 04103, Leipzig, Deutschland
| | - Korinna Jöhrens
- Institut für Pathologie, Universitätsklinikum Carl Gustav Carus, Fetscherstr. 74, 01307, Dresden, Deutschland
| | - Thomas Kirchner
- Pathologisches Institut, Ludwig-Maximilians-Universität München, Thalkirchner Str. 36, 80337, München, Deutschland
| | - Ruth Knüchel
- Institut für Pathologie, Universitätsklinikum RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Deutschland
| | - Doris Mayr
- Pathologisches Institut, Ludwig-Maximilians-Universität München, Thalkirchner Str. 36, 80337, München, Deutschland
| | - Sabine Merkelbach-Bruse
- Institut für Pathologie, Universitätsklinikum Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| | - Hans-Ulrich Schildhaus
- Institut für Pathologie, Universitätsklinikum Essen, Hufelandstraße 55, 45147, Essen, Deutschland
| | - Peter Schirmacher
- Pathologisches Institut, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Deutschland
| | - Markus Tiemann
- Institut für Hämatopathologie Hamburg, Fangdieckstr. 75a, 22547, Hamburg, Deutschland
| | - Katharina Tiemann
- Institut für Hämatopathologie Hamburg, Fangdieckstr. 75a, 22547, Hamburg, Deutschland
| | - Wilko Weichert
- Institut für Pathologie, Technische Universität München, Trogerstr. 18, 81675, München, Deutschland
| | - Reinhard Büttner
- Institut für Pathologie, Universitätsklinikum Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Evrard C, Alexandre J. Predictive and Prognostic Value of Microsatellite Instability in Gynecologic Cancer (Endometrial and Ovarian). Cancers (Basel) 2021; 13:2434. [PMID: 34069845 PMCID: PMC8157359 DOI: 10.3390/cancers13102434] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 12/12/2022] Open
Abstract
For endometrial cancer, a new classification is now available from ESMO, ESGO, and ESTRO based on clinical and molecular characteristics to determine adjuvant therapy. The contribution of molecular biology is major for this pathology mainly by the intermediary of deficient mismatch repair/microsatellite instability. Detection techniques for this phenotype have many peculiarities in gynecologic cancers (endometrial and ovarian) because it has been initially validated in colorectal cancer only. Endometrial cancer is the most common tumor with deficient mismatch repair, which is an important prognostic factor and a predictor of the benefit of adjuvant treatments. Concerning advanced stages, this phenotype is a theragnostic marker for using immunotherapy. Among ovarian cancer, microsatellite instability is less described in literature but exists, particularly in endometrioid type ovarian cancer. This review aims to provide an overview of the publications concerning deficient mismatch repair/microsatellite instability in endometrial and ovarian cancers, detection techniques, and clinical implications of these molecular characteristics.
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Affiliation(s)
- Camille Evrard
- Service d’Oncologie Médicale, CHU de Poitiers, 86021 Poitiers, France
| | - Jérôme Alexandre
- Service d’Oncologie Médicale, AP-HP, CARPEM, Cochin-Hospital, Université de Paris, 75014 Paris, France;
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