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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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Vaziri Fard E, Imboden S, Rau T, Epstein E, Petta TB, Walia S, Carlson JW. p53 Abnormal (Copy Number High) Endometrioid Endometrial Carcinoma Has a Prognosis Indistinguishable From Serous Carcinoma. Int J Gynecol Pathol 2024; 43:515-526. [PMID: 39164940 DOI: 10.1097/pgp.0000000000001012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2024]
Abstract
Among the 4 molecular subgroups of endometrial carcinoma, the p53 abnormal (copy number high) subgroup has the worst prognosis; however, the histologic characteristics of this subgroup are not well established. Also, it is not well established whether low-grade tumors can belong to the p53 abnormal molecular subgroup and if so, what is the prognostic significance of the p53-mutated molecular subgroup in low-grade tumors. In the current study, we included 146 p53-mutated endometrial carcinomas and performed molecular subgrouping either based on a combination of immunohistochemical studies for p53 and MMR protein expression and POLE mutation testing (81 cases) or based on array-based and sequencing-based technologies (65 cases). We excluded cases that belonged to the POLE mutant or MSI molecular subgroups and only studied p53 abnormal (molecular subgroup) endometrial carcinomas (125 cases). In 71 cases, the molecular subgroup was determined by a combination of immunohistochemical studies and POLE mutation testing, and in 54 cases by array-based and sequencing-based methods. We reviewed 1 to 2 representative digital slides from each case and recorded the morphologic characteristics as well as clinical, treatment, and survival follow-up data. Overall, 47 cases were classified as endometrioid carcinoma, 55 serous carcinoma, and 23 other histotypes. Eight cases were FIGO 1, 21 were FIGO 2, and 91 were FIGO 3. A significant proportion of the cases (24.2%) were histologically classified as low-grade (FIGO 1 or 2) endometrioid carcinoma. There was no morphologic characteristic that showed prognostic implication. There was no significant difference in survival among different histotypes (P=0.60). There was no significant difference in survival among low-grade endometrioid (FIGO 1 or 2) versus high-grade (FIGO 3) tumors (P=0.98). Early-stage (stage I), low-grade tumors showed no significant survival advantage over early-stage, high-grade tumors (P=0.16) and this was more evident in FIGO 2 tumors. Although not statistically significant, the FIGO 2 tumors showed a trend toward worse survival than FIGO 3 tumors. Among the cases with available treatment data, more patients with early-stage high-grade tumors received adjuvant treatment, compared to patients with early-stage low-grade tumors, possibly explaining this trend (P=0.03). In conclusion, the findings of our study suggest that low-grade p53 abnormal endometrioid endometrial carcinomas (especially FIGO 2 tumors) have an aggressive course, with a prognosis similar to high-grade tumors. Furthermore, our study suggests that patients who had early-stage low-grade p53 abnormal disease might have been undertreated because of the "low-grade" histotype.
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Chong X, Madeti Y, Cai J, Li W, Cong L, Lu J, Mo L, Liu H, He S, Yu C, Zhou Z, Wang B, Cao Y, Wang Z, Shen L, Wang Y, Zhang X. Recent developments in immunotherapy for gastrointestinal tract cancers. J Hematol Oncol 2024; 17:65. [PMID: 39123202 PMCID: PMC11316403 DOI: 10.1186/s13045-024-01578-x] [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: 05/22/2024] [Accepted: 07/18/2024] [Indexed: 08/12/2024] Open
Abstract
The past few decades have witnessed the rise of immunotherapy for Gastrointestinal (GI) tract cancers. The role of immune checkpoint inhibitors (ICIs), particularly programmed death protein 1 (PD-1) and PD ligand-1 antibodies, has become increasingly pivotal in the treatment of advanced and perioperative GI tract cancers. Currently, anti-PD-1 plus chemotherapy is considered as first-line regimen for unselected advanced gastric/gastroesophageal junction adenocarcinoma (G/GEJC), mismatch repair deficient (dMMR)/microsatellite instability-high (MSI-H) colorectal cancer (CRC), and advanced esophageal cancer (EC). In addition, the encouraging performance of claudin18.2-redirected chimeric antigen receptor T-cell (CAR-T) therapy in later-line GI tract cancers brings new hope for cell therapy in solid tumour treatment. Nevertheless, immunotherapy for GI tumour remains yet precise, and researchers are dedicated to further maximising and optimising the efficacy. This review summarises the important research, latest progress, and future directions of immunotherapy for GI tract cancers including EC, G/GEJC, and CRC.
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Affiliation(s)
- Xiaoyi Chong
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Yelizhati Madeti
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Jieyuan Cai
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Wenfei Li
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Lin Cong
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Jialin Lu
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Liyang Mo
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Huizhen Liu
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Siyi He
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Chao Yu
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Zhiruo Zhou
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Boya Wang
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Yanshuo Cao
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Zhenghang Wang
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
| | - Lin Shen
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Department of Gastrointestinal Oncology, Peking University Cancer Hospital and Institute, Beijing, 100142, China
| | - Yakun Wang
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China.
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Department of Gastrointestinal Oncology, Peking University Cancer Hospital and Institute, Beijing, 100142, China.
| | - Xiaotian Zhang
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 52 Fucheng Road, Hai-Dian District, Beijing, 100142, China.
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Department of Gastrointestinal Oncology, Peking University Cancer Hospital and Institute, Beijing, 100142, China.
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Austin AL, Broaddus RR, Souers RJ, Kane ME, Kolhe R, Miller DV, Moncur JT, Ramkissoon S, Tafe LJ, Trembath DG, Graham RP. Current laboratory testing practices for mismatch repair deficiency and microsatellite instability testing: A survey-based review of current laboratory practices. Am J Clin Pathol 2024:aqae094. [PMID: 39078096 DOI: 10.1093/ajcp/aqae094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 06/28/2024] [Indexed: 07/31/2024] Open
Abstract
OBJECTIVES To describe mismatch repair (MMR) and microsatellite instability (MSI) testing practices in laboratories using the College of American Pathologists (CAP) MSI/MMR proficiency testing programs prior to the 2022 publication of the MSI/MMR practice guidelines copublished by CAP and the Association of Molecular Pathology (AMP). METHODS Data from supplemental questionnaires provided with the 2020-B MSI/MMR programs to 542 laboratories across different practice settings were reviewed. Questionnaires contained 21 questions regarding the type of testing performed, specimen/tumor types used for testing, and clinical practices for checkpoint blockade therapy. RESULTS Domestic laboratories test for MSI/MMR more often than international laboratories (P = .04) and academic hospitals/medical centers test more frequently than nonhospital sites/clinics (P = .03). The most commonly used testing modality is immunohistochemistry, followed by polymerase chain reaction, then next-generation sequencing. Most laboratories (72.6%; 347/478) reported awareness of the use of immune checkpoint inhibitor therapy for patients with high MSI or MMR-deficient results. CONCLUSIONS The results demonstrate the state of MMR and MSI testing in laboratories prior to the publication of the CAP/AMP best practice guidelines, highlighting differences between various laboratory types. The findings indicate the importance of consensus guidelines and provide a baseline for comparison after their implementation.
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Affiliation(s)
- Amy L Austin
- Department of Pathology, Walter Reed National Military Medical Center, Bethesda, MD, US
| | - Russell R Broaddus
- Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill, NC, US
| | - Rhona J Souers
- Biostatistics Department, College of American Pathologists, Northfield, IL, US
| | - Megan E Kane
- Proficiency Testing Department, College of American Pathologists, Northfield, IL, US
| | - Ravindra Kolhe
- Pathology, Medical College of Georgia at Augusta University, Augusta, GA, US
| | - Dylan V Miller
- EM and Immunostains Laboratory, Intermountain Central Laboratory, Murray, UT, US
| | - Joel T Moncur
- Office of the Director, The Joint Pathology Center, Silver Spring, MD, US
| | | | - Laura J Tafe
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, US
| | - Dimitri G Trembath
- Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, US
| | - Rondell P Graham
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, US
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Bocsi GT, Laudadio J, Jain R, Eakin SM, Bhalla A, Rosenberg JA, Maratt JK, Kupfer SS, Leiman DA, Cardona DM. Creation of a Quality Payment Program Measure for Mismatch Repair or Microsatellite Instability Biomarker Testing Status in Colorectal, Endometrial, Gastroesophageal, or Small Bowel Carcinoma. Arch Pathol Lab Med 2024; 148:728-734. [PMID: 37708308 DOI: 10.5858/arpa.2022-0418-oa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2023] [Indexed: 09/16/2023]
Abstract
CONTEXT.— Quality measures that are supported by evidence-based clinical practice guidelines are preferred for assessing the quality of pathologists' practices. Careful testing of a measure ensures that scores obtained by that measure reflect the quality of a pathologist's practice. OBJECTIVE.— To specify a new quality measure and to demonstrate through testing that it is suitable for measuring pathologists' appropriate incorporation of information regarding microsatellite instability (MSI) and/or mismatch repair (MMR) status in pathology reports for colorectal, endometrial, gastroesophageal, and small bowel carcinoma. DESIGN.— The College of American Pathologists collaborated with the American Gastroenterological Association to specify and test the new measure. Face validity testing was used to investigate the validity of the measure. Feasibility testing was conducted to understand if data elements required by the measure specification were readily accessible. Signal-to-noise analysis was used to characterize the measure's reliability. RESULTS.— Guideline recommendations for MSI and/or MMR testing supported specifications for the measure. Face validity testing indicated that the measure could distinguish the quality of care provided. Data elements required by the measure specification were found to be accessible, which supported the measure's feasibility. Reliability testing showed that differences in measure score were attributable to real differences in performance rather than random variation in scoring. CONCLUSIONS.— The Mismatch Repair or Microsatellite Instability Biomarker Testing Status in Colorectal Carcinoma, Endometrial, Gastroesophageal, or Small Bowel Carcinoma measure was appropriately specified, and testing demonstrated that it is well suited for characterizing the quality of pathologists' communication of MMR and/or MSI status.
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Affiliation(s)
- Gregary T Bocsi
- From the Department of Pathology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora (Bocsi)
| | - Jennifer Laudadio
- the Department of Pathology and Laboratory Medicine, University of Arkansas for Medical Sciences, Little Rock (Laudadio)
| | - Richa Jain
- Pathology Specialists of Memphis, Memphis, Tennessee (Jain)
| | - Sarah M Eakin
- Pathology Associates of Erie, Erie, Pennsylvania (Eakin)
| | - Amarpreet Bhalla
- the Department of Pathology, Albert Einstein College of Medicine, Bronx, New York (Bhalla)
| | | | - Jennifer K Maratt
- the Division of Gastroenterology, Department of Medicine, Indiana University School of Medicine, Indianapolis (Maratt)
| | - Sonia S Kupfer
- the Section of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Chicago, Chicago, Illinois (Kupfer)
| | - David A Leiman
- the Division of Gastroenterology, Department of Medicine (Leiman) and Department of Pathology (Cardona), Duke University School of Medicine, Durham, North Carolina
| | - Diana M Cardona
- the Division of Gastroenterology, Department of Medicine (Leiman) and Department of Pathology (Cardona), Duke University School of Medicine, Durham, North Carolina
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6
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Galant N, Krawczyk P, Monist M, Obara A, Gajek Ł, Grenda A, Nicoś M, Kalinka E, Milanowski J. Molecular Classification of Endometrial Cancer and Its Impact on Therapy Selection. Int J Mol Sci 2024; 25:5893. [PMID: 38892080 PMCID: PMC11172295 DOI: 10.3390/ijms25115893] [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: 04/17/2024] [Revised: 05/21/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Endometrial cancer (EC) accounts for 90% of uterine cancer cases. It is considered not only one of the most common gynecological malignancies but also one of the most frequent cancers among women overall. Nowadays, the differentiation of EC subtypes is based on immunohistochemistry and molecular techniques. It is considered that patients' prognosis and the implementation of the appropriate treatment depend on the cancer subtype. Patients with pathogenic variants in POLE have the most favorable outcome, while those with abnormal p53 protein have the poorest. Therefore, in patients with POLE mutation, the de-escalation of postoperative treatment may be considered, and patients with abnormal p53 protein should be subjected to intensive adjuvant therapy. Patients with a DNA mismatch repair (dMMR) deficiency are classified in the intermediate prognosis group as EC patients without a specific molecular profile. Immunotherapy has been recognized as an effective treatment method in patients with advanced or recurrent EC with a mismatch deficiency. Thus, different adjuvant therapy approaches, including targeted therapy and immunotherapy, are being proposed depending on the EC subtype, and international guidelines, such as those published by ESMO and ESGO/ESTRO/ESP, include recommendations for performing the molecular classification of all EC cases. The decision about adjuvant therapy selection has to be based not only on clinical data and histological type and stage of cancer, but, following international recommendations, has to include EC molecular subtyping. This review describes how molecular classification could support more optimal therapeutic management in endometrial cancer patients.
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Affiliation(s)
- Natalia Galant
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-090 Lublin, Poland; (N.G.); (P.K.); (M.N.); (J.M.)
| | - Paweł Krawczyk
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-090 Lublin, Poland; (N.G.); (P.K.); (M.N.); (J.M.)
| | - Marta Monist
- II Department of Gynecology, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Adrian Obara
- Institute of Genetics and Immunology GENIM LCC, 20-609 Lublin, Poland; (A.O.); (Ł.G.)
| | - Łukasz Gajek
- Institute of Genetics and Immunology GENIM LCC, 20-609 Lublin, Poland; (A.O.); (Ł.G.)
| | - Anna Grenda
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-090 Lublin, Poland; (N.G.); (P.K.); (M.N.); (J.M.)
| | - Marcin Nicoś
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-090 Lublin, Poland; (N.G.); (P.K.); (M.N.); (J.M.)
| | - Ewa Kalinka
- Department of Oncology, Polish Mother’s Memorial Hospital-Research Institute, 93-338 Łódź, Poland;
| | - Janusz Milanowski
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-090 Lublin, Poland; (N.G.); (P.K.); (M.N.); (J.M.)
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Tapia-Valladares C, Valenzuela G, González E, Maureira I, Toro J, Freire M, Sepúlveda-Hermosilla G, Ampuero D, Blanco A, Gallegos I, Morales F, Erices JI, Barajas O, Ahumada M, Contreras HR, González J, Armisén R, Marcelain K. Distinct Driver Pathway Enrichments and a High Prevalence of TSC2 Mutations in Right Colon Cancer in Chile: A Preliminary Comparative Analysis. Int J Mol Sci 2024; 25:4695. [PMID: 38731914 PMCID: PMC11083322 DOI: 10.3390/ijms25094695] [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: 02/09/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 05/13/2024] Open
Abstract
Colorectal cancer (CRC) is the second leading cause of cancer deaths globally. While ethnic differences in driver gene mutations have been documented, the South American population remains understudied at the genomic level, despite facing a rising burden of CRC. We analyzed tumors of 40 Chilean CRC patients (Chp) using next-generation sequencing and compared them to data from mainly Caucasian cohorts (TCGA and MSK-IMPACT). We identified 388 mutations in 96 out of 135 genes, with TP53 (45%), KRAS (30%), PIK3CA (22.5%), ATM (20%), and POLE (20%) being the most frequently mutated. TSC2 mutations were associated with right colon cancer (44.44% in RCRC vs. 6.45% in LCRC, p-value = 0.016), and overall frequency was higher compared to TCGA (p-value = 1.847 × 10-5) and MSK-IMPACT cohorts (p-value = 3.062 × 10-2). Limited sample size restricts definitive conclusions, but our data suggest potential differences in driver mutations for Chilean patients, being that the RTK-RAS oncogenic pathway is less affected and the PI3K pathway is more altered in Chp compared to TCGA (45% vs. 25.56%, respectively). The prevalence of actionable pathways and driver mutations can guide therapeutic choices, but can also impact treatment effectiveness. Thus, these findings warrant further investigation in larger Chilean cohorts to confirm these initial observations. Understanding population-specific driver mutations can guide the development of precision medicine programs for CRC patients.
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Affiliation(s)
- Camilo Tapia-Valladares
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - Guillermo Valenzuela
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - Evelin González
- Centro de Genética y Genómica, Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7610507, Chile
| | - Ignacio Maureira
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
- Departamento de Tecnología Médica, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - Jessica Toro
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
- Centro para la Prevención y Control del Cáncer, CECAN, Universidad de Chile, Santiago 8380000, Chile
| | - Matías Freire
- CORFO Center of Excellence in Precision Medicine, Pfizer Chile, Santiago 8380000, Chile
| | | | - Diego Ampuero
- CORFO Center of Excellence in Precision Medicine, Pfizer Chile, Santiago 8380000, Chile
| | - Alejandro Blanco
- Centro de Genética y Genómica, Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7610507, Chile
| | - Iván Gallegos
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
- Centro para la Prevención y Control del Cáncer, CECAN, Universidad de Chile, Santiago 8380000, Chile
- Departamento de Patología, Hospital Clínico de la Universidad de Chile, Santiago 8380453, Chile
| | - Fernanda Morales
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - José I. Erices
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - Olga Barajas
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
- Centro para la Prevención y Control del Cáncer, CECAN, Universidad de Chile, Santiago 8380000, Chile
- Departamento de Medicina Interna, Hospital Clínico de la Universidad de Chile, Santiago 8380453, Chile
| | - Mónica Ahumada
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
- Centro para la Prevención y Control del Cáncer, CECAN, Universidad de Chile, Santiago 8380000, Chile
- Departamento de Medicina Interna, Hospital Clínico de la Universidad de Chile, Santiago 8380453, Chile
| | - Héctor R. Contreras
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
- Centro para la Prevención y Control del Cáncer, CECAN, Universidad de Chile, Santiago 8380000, Chile
| | - Jaime González
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
| | - Ricardo Armisén
- Centro de Genética y Genómica, Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7610507, Chile
| | - Katherine Marcelain
- Departamento de Oncología Básico Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8380000, Chile
- Centro para la Prevención y Control del Cáncer, CECAN, Universidad de Chile, Santiago 8380000, Chile
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8
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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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9
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Johnson D, Chee CE, Wong W, Lam RCT, Tan IBH, Ma BBY. Current advances in targeted therapy for metastatic colorectal cancer - Clinical translation and future directions. Cancer Treat Rev 2024; 125:102700. [PMID: 38422896 DOI: 10.1016/j.ctrv.2024.102700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
The last two decades have witnessed major breakthroughs in the development of targeted therapy for patients with metastatic colorectal cancer (mCRC), an achievement which stems largely from advances in translational research. Precision medicine is now widely practiced in routine oncological care, where systemic therapy is individualized based on clinical factors such as primary tumor sidedness, location and number of metastases, as well as molecular factors such as the RAS and BRAF mutation status, mismatch repair / microsatellite status and presence of other actionable genomic alterations in the tumor. The optimal selection of patients with RAS and BRAF-wild type (WT), left-sided primary tumor for treatment with epidermal growth factor receptor (EGFR) and chemotherapy (chemo) has markedly improved survival in the first-line setting. The pivotal trials of cetuximab in combination with BRAF/ MEK inhibitor for BRAF V600E mutant mCRC, and panitumumab with KRAS G12C inhibitor in KRAS(G12C)-mutant mCRC have been practice-changing. Anti-HER2 small molecular inhibitor, antibodies and antibody-drug conjugates have significantly improved the treatment outcome of patients with HER2 amplified mCRC. Anti-angiogenesis agents are now used across all lines of treatment and novel combinations with immune-checkpoint inhibitors are under active investigation in MSS mCRC. The non-invasive monitoring of molecular resistance to targeted therapies using Next Generation Sequencing analysis of circulating tumor-derived DNA (ctDNA) and captured sequencing of tumors have improved patient selection for targeted therapies. This review will focus on how latest advances, challenges and future directions in the development of targeted therapies in mCRC.
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Affiliation(s)
- David Johnson
- Department of Clinical Oncology, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region
| | - Cheng Ean Chee
- Department of Hematology-Oncology, National University Cancer Institute, Singapore.
| | - Wesley Wong
- Department of Clinical Oncology, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region
| | - Rachel C T Lam
- Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region.
| | - Iain Bee Huat Tan
- National Cancer Centre Singapore and Duke NUS, Graduate Medical School and Genome Institute of Singapore, Singapore.
| | - Brigette B Y Ma
- State Key Laboratory of Translational Oncology, Sir YK Pao Centre for Cancer, Department of Clinical Oncology, Hong Kong Cancer Institute, The Chinese University of Hong Kong, Hong Kong Special Administrative Region.
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10
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Wong RWC, Cheung ANY. Predictive and prognostic biomarkers in female genital tract tumours: an update highlighting their clinical relevance and practical issues. Pathology 2024; 56:214-227. [PMID: 38212229 DOI: 10.1016/j.pathol.2023.10.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/24/2023] [Accepted: 10/29/2023] [Indexed: 01/13/2024]
Abstract
The evaluation of biomarkers by molecular techniques and immunohistochemistry has become increasingly relevant to the treatment of female genital tract tumours as a consequence of the greater availability of therapeutic options and updated disease classifications. For ovarian cancer, mutation testing for BRCA1/2 is the standard predictive biomarker for poly(ADP-ribose) polymerase inhibitor therapy, while homologous recombination deficiency testing may allow the identification of eligible patients among cases without demonstrable BRCA1/2 mutations. Clinical recommendations are available which specify how these predictive biomarkers should be applied. Mismatch repair (MMR) protein and folate receptor alpha immunohistochemistry may also be used to guide treatment in ovarian cancer. In endometrial cancer, MMR immunohistochemistry is the preferred test for predicting benefit from immune checkpoint inhibitor (ICI) therapy, but molecular testing for microsatellite instability may have a supplementary role. HER2 testing by immunohistochemistry and in situ hybridisation is applicable to endometrial serous carcinomas to assess trastuzumab eligibility. Immunohistochemistry for oestrogen receptor and progesterone receptor expression may be used for prognostication in endometrial cancer, but its predictive value for hormonal therapy is not yet proven. POLE mutation testing and p53 immunohistochemistry (as a surrogate for TP53 mutation status) serve as prognostic markers for favourable and adverse outcomes, respectively, in endometrial cancer, especially when combined with MMR testing for molecular subtype designation. For cervical cancer, programmed death ligand 1 immunohistochemistry may be used to predict benefit from ICI therapy although its predictive value is under debate. In vulvar cancer, p16 and p53 immunohistochemistry has established prognostic value, stratifying patients into three groups based on the human papillomavirus and TP53 mutation status of the tumour. Awareness of the variety and pitfalls of expression patterns for p16 and p53 in vulvar carcinomas is crucial for accurate designation. It is hoped that collaborative efforts in standardising and optimising biomarker testing for gynaecological tumours will contribute to evidence-based therapeutic decisions.
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Affiliation(s)
- Richard Wing-Cheuk Wong
- Department of Pathology, United Christian Hospital, Kwun Tong, Hong Kong Special Administrative Region of China.
| | - Annie N Y Cheung
- Department of Pathology, School of Clinical Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region of China
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11
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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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12
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Zhang P, Wang A, Bian C, Zhang J, Jiang C, Zhou H. Evaluation of mismatch-repair and microsatellite-instability status in a Chinese colorectal cancer Cohort. Asian J Surg 2024; 47:959-967. [PMID: 38185557 DOI: 10.1016/j.asjsur.2023.12.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 12/25/2023] [Indexed: 01/09/2024] Open
Abstract
BACKGROUND Immunohistochemistry (IHC) and traditional polymerase chain reaction (PCR) are the methods of choice in clinical practice to identify the mismatch repair (MMR) and microsatellite instability (MSI) status in colorectal cancer (CRC). In some previous researches, the concordance rate between two methods was different and discordance existed in about 1 %-9.7 %. METHODS We retrospectively reviewed 406 patients received surgical CRC resections and tests of both MMR IHC and MSI PCR from January 2019 to April 2022 in Shanghai Changzheng Hospital. The incidence of deficient mismatch repair (dMMR) or microsatellite instability-high (MSI-H) CRCs, the concordance rate between two methods, and the reasons for discordant results were evaluated with clinicopathological data, immunochemical staining, whole-exome sequencing, and MLH1 methylation analysis. RESULTS Among 406 patients, the incidence of MSI-H CRCs was 7.88 %. Nearly a quarter of the cases under reexamination of IHC was initial misinterpreted. Besides, the concordance rate between MMR IHC and MSI PCR was 99.26 % (401 of 404) and the Kappa value was 0.945 (p < 0.001). Finally, some somatic variants of MMR and POLE genes which may explain the discordance were identified. CONCLUSION The incidence rate of MSI-H in Chinese patients with CRC might be relatively low owing to tumor location. Although MSI and IHC analyses are highly concordant, both MMR IHC and MSI PCR tests should be simultaneously performed and MMR IHC should be interpreted by experienced pathologists. In the future, further studies on discordant results should be carried out to improve the personalized management of CRC.
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Affiliation(s)
- Peng Zhang
- Department of Colorectal Surgery, Changzheng Hospital, Navy Medical University, Shanghai, China
| | - Anqi Wang
- Department of Colorectal Surgery, Changzheng Hospital, Navy Medical University, Shanghai, China
| | - Ce Bian
- Department of Colorectal Surgery, Changzheng Hospital, Navy Medical University, Shanghai, China
| | - Jing Zhang
- Division of Pathology, Changzheng Hospital, Navy Medical University, Shanghai, China
| | - Caifeng Jiang
- Department of Gastroenterology, Dushu Lake Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China.
| | - Haiyang Zhou
- Department of Colorectal Surgery, Changzheng Hospital, Navy Medical University, Shanghai, China.
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13
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Longerich T, Stenzinger A, Schirmacher P. Molecular diagnostics of hepatobiliary and pancreatic neoplasias. Virchows Arch 2024; 484:263-272. [PMID: 38429607 PMCID: PMC10948571 DOI: 10.1007/s00428-024-03744-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 03/03/2024]
Abstract
Neoplasias of the hepatopancreatobiliary tract are growing in numbers, have the poorest prognosis of all major cancer entities, and thus represent a rising clinical problem. Their molecular diagnostic has dramatically improved, contributing to tumor subtyping, definition of malignancy, and uncovering cases with hereditary predisposition. Most of all, predictive molecular testing allows to identify cases amenable to treatment with the rising number of approved targeted drugs, immune-oncological treatment, and clinical trials. In this review, the current state of molecular testing and its contribution to clinical decision-making are outlined.
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Affiliation(s)
- T Longerich
- Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 224, 69118, Heidelberg, Germany
| | - A Stenzinger
- Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 224, 69118, Heidelberg, Germany
| | - P Schirmacher
- Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 224, 69118, Heidelberg, Germany.
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14
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Shah SM, Demidova EV, Ringenbach S, Faezov B, Andrake M, Gandhi A, Mur P, Viana-Errasti J, Xiu J, Swensen J, Valle L, Dunbrack RL, Hall MJ, Arora S. Exploring Co-occurring POLE Exonuclease and Non-exonuclease Domain Mutations and Their Impact on Tumor Mutagenicity. CANCER RESEARCH COMMUNICATIONS 2024; 4:213-225. [PMID: 38282550 PMCID: PMC10812383 DOI: 10.1158/2767-9764.crc-23-0312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/05/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024]
Abstract
POLE driver mutations in the exonuclease domain (ExoD driver) are prevalent in several cancers, including colorectal cancer and endometrial cancer, leading to dramatically ultra-high tumor mutation burden (TMB). To understand whether POLE mutations that are not classified as drivers (POLE Variant) contribute to mutagenesis, we assessed TMB in 447 POLE-mutated colorectal cancers, endometrial cancers, and ovarian cancers classified as TMB-high ≥10 mutations/Mb (mut/Mb) or TMB-low <10 mut/Mb. TMB was significantly highest in tumors with "POLE ExoD driver plus POLE Variant" (colorectal cancer and endometrial cancer, P < 0.001; ovarian cancer, P < 0.05). TMB increased with additional POLE variants (P < 0.001), but plateaued at 2, suggesting an association between the presence of these variants and TMB. Integrated analysis of AlphaFold2 POLE models and quantitative stability estimates predicted the impact of multiple POLE variants on POLE functionality. The prevalence of immunogenic neoepitopes was notably higher in the "POLE ExoD driver plus POLE Variant" tumors. Overall, this study reveals a novel correlation between POLE variants in POLE ExoD-driven tumors, and ultra-high TMB. Currently, only select pathogenic ExoD mutations with a reliable association with ultra-high TMB inform clinical practice. Thus, these findings are hypothesis-generating, require functional validation, and could potentially inform tumor classification, treatment responses, and clinical outcomes. SIGNIFICANCE Somatic POLE ExoD driver mutations cause proofreading deficiency that induces high TMB. This study suggests a novel modifier role for POLE variants in POLE ExoD-driven tumors, associated with ultra-high TMB. These data, in addition to future functional studies, may inform tumor classification, therapeutic response, and patient outcomes.
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Affiliation(s)
- Shreya M. Shah
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
- Science Scholars Program, Temple University, Philadelphia, Pennsylvania
| | - Elena V. Demidova
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
| | - Salena Ringenbach
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
- Lewis Katz School of Medicine, Temple University, Bethlehem, Pennsylvania
| | - Bulat Faezov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
- Program in Cancer Signaling and Microenvironment, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Mark Andrake
- Program in Cancer Signaling and Microenvironment, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Arjun Gandhi
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
- University College Dublin School of Medicine and Medical Science, Dublin, Ireland
| | - Pilar Mur
- Hereditary Cancer Program, Catalan Institute of Oncology, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain
| | - Julen Viana-Errasti
- Hereditary Cancer Program, Catalan Institute of Oncology, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain
| | | | | | - Laura Valle
- Hereditary Cancer Program, Catalan Institute of Oncology, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain
| | - Roland L. Dunbrack
- Program in Cancer Signaling and Microenvironment, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Michael J. Hall
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
- Department of Clinical Genetics, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Sanjeevani Arora
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
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15
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Crimini E, Boscolo Bielo L, Berton Giachetti PPM, Pellizzari G, Antonarelli G, Taurelli Salimbeni B, Repetto M, Belli C, Curigliano G. Beyond PD(L)-1 Blockade in Microsatellite-Instable Cancers: Current Landscape of Immune Co-Inhibitory Receptor Targeting. Cancers (Basel) 2024; 16:281. [PMID: 38254772 PMCID: PMC10813411 DOI: 10.3390/cancers16020281] [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: 12/11/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
High microsatellite instability (MSI-H) derives from genomic hypermutability due to deficient mismatch repair function. Colorectal (CRC) and endometrial cancers (EC) are the tumor types that more often present MSI-H. Anti-PD(L)-1 antibodies have been demonstrated to be agnostically effective in patients with MSI-H cancer, but 50-60% of them do not respond to single-agent treatment, highlighting the necessity of expanding their treatment opportunities. Ipilimumab (anti-CTLA4) is the only immune checkpoint inhibitor (ICI) non-targeting PD(L)-1 that has been approved so far by the FDA for MSI-H cancer, namely, CRC in combination with nivolumab. Anti-TIM3 antibody LY3321367 showed interesting clinical activity in combination with anti-PDL-1 antibody in patients with MSI-H cancer not previously treated with anti-PD(L)-1. In contrast, no clinical evidence is available for anti-LAG3, anti-TIGIT, anti-BTLA, anti-ICOS and anti-IDO1 antibodies in MSI-H cancers, but clinical trials are ongoing. Other immunotherapeutic strategies under study for MSI-H cancers include vaccines, systemic immunomodulators, STING agonists, PKM2 activators, T-cell immunotherapy, LAIR-1 immunosuppression reversal, IL5 superagonists, oncolytic viruses and IL12 partial agonists. In conclusion, several combination therapies of ICIs and novel strategies are emerging and may revolutionize the treatment paradigm of MSI-H patients in the future. A huge effort will be necessary to find reliable immune biomarkers to personalize therapeutical decisions.
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Affiliation(s)
- Edoardo Crimini
- Division of Early Drug Development, European Institute of Oncology, IRCCS, Via Giuseppe Ripamonti 435, 20141 Milan, Italy (G.P.); (G.A.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Luca Boscolo Bielo
- Division of Early Drug Development, European Institute of Oncology, IRCCS, Via Giuseppe Ripamonti 435, 20141 Milan, Italy (G.P.); (G.A.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Pier Paolo Maria Berton Giachetti
- Division of Early Drug Development, European Institute of Oncology, IRCCS, Via Giuseppe Ripamonti 435, 20141 Milan, Italy (G.P.); (G.A.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Gloria Pellizzari
- Division of Early Drug Development, European Institute of Oncology, IRCCS, Via Giuseppe Ripamonti 435, 20141 Milan, Italy (G.P.); (G.A.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Gabriele Antonarelli
- Division of Early Drug Development, European Institute of Oncology, IRCCS, Via Giuseppe Ripamonti 435, 20141 Milan, Italy (G.P.); (G.A.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Beatrice Taurelli Salimbeni
- Division of Early Drug Development, European Institute of Oncology, IRCCS, Via Giuseppe Ripamonti 435, 20141 Milan, Italy (G.P.); (G.A.)
| | - Matteo Repetto
- Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Carmen Belli
- Division of Early Drug Development, European Institute of Oncology, IRCCS, Via Giuseppe Ripamonti 435, 20141 Milan, Italy (G.P.); (G.A.)
| | - Giuseppe Curigliano
- Division of Early Drug Development, European Institute of Oncology, IRCCS, Via Giuseppe Ripamonti 435, 20141 Milan, Italy (G.P.); (G.A.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
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16
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Valle L, Monahan KJ. Genetic predisposition to gastrointestinal polyposis: syndromes, tumour features, genetic testing, and clinical management. Lancet Gastroenterol Hepatol 2024; 9:68-82. [PMID: 37931640 DOI: 10.1016/s2468-1253(23)00240-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 11/08/2023]
Abstract
Gastrointestinal tract polyposis is characterised by the presence of multiple polyps, particularly in the colorectum, and encompasses both cancer predisposition genetic syndromes and non-syndromic clinical manifestations. The sources of the heterogeneity observed in polyposis syndromes relate to genetic cause, mode of inheritance, polyp burden and histological type, and spectrum and frequency of extracolonic manifestations. These features determine the clinical management of carriers, including strategies for cancer prevention and early detection, and oncological treatments. Despite substantial progress in identifying the genetic causes of polyposis, a large proportion of cases remain genetically unexplained. Although some of these cases might be due to lifestyle, environmental factors, or cancer treatments, it is likely that additional polyposis predisposition genes will be identified. This Review provides an overview of the known syndromes and genes, genetic testing, and clinical management of patients with polyposis, and recent advances and challenges in the field of gastrointestinal polyposis.
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Affiliation(s)
- Laura Valle
- Hereditary Cancer Programme, Catalan Institute of Oncology, Oncobell Programme, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain.
| | - Kevin J Monahan
- The St Mark's Centre for Familial Intestinal Cancer Lynch Syndrome & Family Cancer Clinic & Polyposis Registry, St Mark's Hospital, London, UK; Imperial College, London, UK.
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17
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Lieto E, Cardella F, Wang D, Ronchi A, Del Sorbo G, Panarese I, Ferraraccio F, De Vita F, Galizia G, Auricchio A. Assessment of the DNA Mismatch Repair System Is Crucial in Colorectal Cancers Necessitating Adjuvant Treatment: A Propensity Score-Matched and Win Ratio Analysis. Cancers (Basel) 2023; 16:134. [PMID: 38201561 PMCID: PMC10778196 DOI: 10.3390/cancers16010134] [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: 11/22/2023] [Revised: 12/20/2023] [Accepted: 12/24/2023] [Indexed: 01/12/2024] Open
Abstract
A deficient DNA mismatch repair (MMR) system is identified in a non-negligible part of sporadic colorectal cancers (CRCs), and its prognostic value remains controversial. High tumor mutational burden, along with a poor response to conventional chemotherapy and excellent results from immunotherapy, are the main features of this subset. The aim of this study was to evaluate the predictive value of DNA MMR system status for its best treatment. Four hundred and three CRC patients, operated on from 2014 to 2021 and not treated with immunotherapy, entered this study. Immunohistochemistry and polymerase chain reaction, as appropriate, were used to unequivocally group specimens into microsatellite stable (MSS) and instable (MSI) tumors. The win-ratio approach was utilized to compare composite outcomes. MSI tumors accounted for 12.9% of all series. The right tumor location represented the most important factor related to MSI. The status of the DNA MMR system did not appear to correlate with outcome in early-stage CRCs not requiring adjuvant treatment; in advanced stages undergoing conventional chemotherapy, MSI tumors showed significantly poorer overall and disease-free survival rates and the highest win ratio instead. The determination of DNA MMR status is crucial to recommending correct management. There is clear evidence that instable CRCs needing adjuvant therapy should undergo appropriate treatments.
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Affiliation(s)
- Eva Lieto
- Division of GI Tract Surgical Oncology, Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (E.L.); (F.C.); (G.D.S.); (A.A.)
| | - Francesca Cardella
- Division of GI Tract Surgical Oncology, Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (E.L.); (F.C.); (G.D.S.); (A.A.)
| | - Duolao Wang
- Department of Clinical Sciences, School of Tropical Medicine Liverpool, Liverpool L7 8XZ, UK;
| | - Andrea Ronchi
- Division of Pathology, Department of Mental and Physical Health and Rehabilitation Medicine, University of Campania “L VanvItelli”, via Luciano Armanni, 80138 Naples, Italy; (A.R.); (I.P.); (F.F.)
| | - Giovanni Del Sorbo
- Division of GI Tract Surgical Oncology, Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (E.L.); (F.C.); (G.D.S.); (A.A.)
| | - Iacopo Panarese
- Division of Pathology, Department of Mental and Physical Health and Rehabilitation Medicine, University of Campania “L VanvItelli”, via Luciano Armanni, 80138 Naples, Italy; (A.R.); (I.P.); (F.F.)
| | - Francesca Ferraraccio
- Division of Pathology, Department of Mental and Physical Health and Rehabilitation Medicine, University of Campania “L VanvItelli”, via Luciano Armanni, 80138 Naples, Italy; (A.R.); (I.P.); (F.F.)
| | - Ferdinando De Vita
- Division of Medical Oncology, Department of Precision Medicine, School of Medicine, University of Campania ‘Luigi Vanvitelli’, 80138 Naples, Italy;
| | - Gennaro Galizia
- Division of GI Tract Surgical Oncology, Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (E.L.); (F.C.); (G.D.S.); (A.A.)
| | - Annamaria Auricchio
- Division of GI Tract Surgical Oncology, Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (E.L.); (F.C.); (G.D.S.); (A.A.)
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18
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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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19
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André T, Berton D, Curigliano G, Sabatier R, Tinker AV, Oaknin A, Ellard S, de Braud F, Arkenau HT, Trigo J, Gravina A, Kristeleit R, Moreno V, Abdeddaim C, Vano YA, Samouëlian V, Miller R, Boni V, Torres AA, Gilbert L, Brown J, Dewal N, Dabrowski C, Antony G, Zografos E, Veneris J, Banerjee S. Antitumor Activity and Safety of Dostarlimab Monotherapy in Patients With Mismatch Repair Deficient Solid Tumors: A Nonrandomized Controlled Trial. JAMA Netw Open 2023; 6:e2341165. [PMID: 37917058 PMCID: PMC10623195 DOI: 10.1001/jamanetworkopen.2023.41165] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/14/2023] [Indexed: 11/03/2023] Open
Abstract
Importance Mismatch repair deficiency (dMMR) occurs in various cancers, and these tumors are attractive candidates for anti-programmed cell death 1 therapies, such as dostarlimab, a recently approved immune checkpoint inhibitor. Objective To assess the antitumor activity and safety of dostarlimab in patients with advanced or recurrent dMMR solid tumors. Design, Setting, And Participants The GARNET trial was a phase 1, open-label, single-group, multicenter study that began enrolling May 8, 2017. Participants had advanced or recurrent dMMR and microsatellite instability-high (MSI-H) or polymerase epsilon (POLE)-altered solid tumors. The data cut for this interim analysis was from November 1, 2021, with median follow-up of 27.7 months. Interventions Patients received 500 mg of dostarlimab intravenously every 3 weeks for 4 doses, then 1000 mg every 6 weeks until disease progression, discontinuation, or withdrawal. Main Outcomes and Measures The primary objective was to evaluate objective response rate and duration of response in patients with dMMR solid tumors by blinded independent central review using Response Evaluation Criteria in Solid Tumors, version 1.1. Results The efficacy population included 327 patients (median [range] age, 63 [24-85] years; 235 [71.9%] female; 7 [2.1%] Asian, 6 [1.8%] Black, and 206 [63.0%] White patients), with 141 patients (43.1%) with dMMR endometrial cancer, 105 patients (32.1%) with dMMR colorectal cancer, and 81 patients (24.8%) with other dMMR tumor types. All patients had at least 1 previous line of therapy. Objective response rate assessed per blinded independent central review for dMMR solid tumors was 44.0% (95% CI, 38.6% to 49.6%). Median duration of response was not reached (range, ≥1.18 to ≥47.21 months); 72.2% of responders (104 of 144) had a response lasting 12 or more months. Median progression-free survival was 6.9 months (95% CI, 4.2 to 13.6 months); probability of progression-free survival at 24 months was 40.6% (95% CI, 35.0% to 46.1%). Median overall survival was not reached (95% CI, 31.6 months to not reached). The most frequent immune-related adverse events were hypothyroidism (25 [6.9%]), alanine aminotransferase increase (21 [5.8%]), and arthralgia (17 [4.7%]). No new safety concerns were identified. Conclusions And Relevance In this nonrandomized controlled trial, dostarlimab was a well-tolerated treatment option with rapid, robust, and durable antitumor activity in patients with diverse dMMR solid tumors. These findings suggest that dostarlimab provides meaningful long-term benefit in a population with high unmet need. Trial Registration ClinicalTrials.gov Identifier: NCT02715284.
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Affiliation(s)
- Thierry André
- Saint-Antoine Hospital, INSERM, Unité Mixte de Recherche Scientifique 938, and SIRIC CURAMUS, Sorbonne University, Paris, France
| | - Dominique Berton
- GINECO and Institut de Cancerologie de l’Ouest, Centre René Gauducheau, Saint-Herblain, France
| | - Giuseppe Curigliano
- European Institute of Oncology, IRCCS, Milan, Italy
- Department of Medical Oncology and Hemato-Oncology, University of Milano, Milan, Italy
| | - Renaud Sabatier
- Department of Medical Oncology, Institut Paoli-Calmettes, CRCM, INSERM, CNRS, Aix-Marseille University, Marseille, France
| | - Anna V. Tinker
- BC Cancer–Vancouver, Vancouver, British Columbia, Canada
| | - Ana Oaknin
- Vall d’Hebron University Hospital and Vall d’Hebron Institute of Oncology, Barcelona, Spain
| | - Susan Ellard
- BC Cancer–Kelowna, Kelowna, British Columbia, Canada
| | - Filippo de Braud
- Ordinario di Oncologia Medica Direttore Scuola di Specialità in Oncologia Medica Università di Milano, Direttore Dipartimento Oncologia e Ematoncologia Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | | | - José Trigo
- Medical Oncology Department, Hospital Virgen de la Victoria IBIMA, Malaga, Spain
| | - Adriano Gravina
- Clinical Trials Unit, Instituto Nazionale Tumori, IRCCS, Fondazione “G. Pascale,” Naples, Italy
| | | | - Victor Moreno
- START Madrid FJD, Hospital Fundación Jiménez Díaz, Madrid, Spain
| | - Cyril Abdeddaim
- Centre de Lutte Contre le Cancer–Centre Oscar Lambret, Lille, France
| | - Yann-Alexandre Vano
- Department of Medical Oncology, Hôpital Européen Georges-Pompidou, Institut du Cancer Paris CARPEM, AP-HP Centre–Université Paris Cité, Paris, France
| | - Vanessa Samouëlian
- Gynecologic Oncology Division, Centre Hospitalier de l’Université de Montréal (CHUM), Centre de Recherche du CHUM, and Université de Montréal, Montreal, Quebec, Canada
| | - Rowan Miller
- University College London, St Bartholomew’s Hospital London, London, United Kingdom
| | - Valentina Boni
- NEXT Oncology Hospital Universitario Quirónsalud Madrid, Madrid, Spain
| | - Antonio Antón Torres
- Department of Medical Oncology, Hospital Universitario Miguel Servet and IIS Aragon, Zaragoza, Spain
| | - Lucy Gilbert
- Division of Gynecologic Oncology, McGill University Health Centre, Montreal, Quebec, Canada
| | - Jubilee Brown
- Division of Gynecologic Oncology, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina
| | | | | | | | | | | | - Susana Banerjee
- The Royal Marsden NHS Foundation Trust and Institute of Cancer Research, London, United Kingdom
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Grillo F, Ali M, Paudice M, Pigozzi S, Anselmi G, Scabini S, Sciallero S, Piol N, Mastracci L. Impact of formalin fixation on mismatch repair protein evaluation by immunohistochemistry. Virchows Arch 2023; 483:677-685. [PMID: 37773452 PMCID: PMC10673985 DOI: 10.1007/s00428-023-03661-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/29/2023] [Accepted: 09/15/2023] [Indexed: 10/01/2023]
Abstract
Mismatch repair/microsatellite instability (MMR/MSI) status in colorectal cancer (CRC) has become fundamental as a diagnostic, prognostic, and predictive factor. MMR immunohistochemistry (IHC) is considered a simple and reliable approach; however, its effectiveness depends on pre-analytic factors. Aim of this study was to investigate the impact of different fixation times/protocols on MMR protein IHC quality. Left over tissue from surgically resected CRC samples (cold ischemia time < 30 min) where fixed as follows: standard formalin fixation (24-48 h); hypo-fixation (<20 h); hyper-fixation (>90 h); cold (4°C) fixation (24-48 h); standard fixation for small sample size (0.5×0.5 cm). Samples for each group were collected from 30 resected CRC and the following parameters were evaluated on 600 immunohistochemical stains: intensity of expression; patchiness of staining; presence of central artefact. Forty-six immunoreactions were inadequate (score 0 intensity), the majority regarding MLH1 or PMS2 in the hypo-fixation group (47.8%), followed by the hyper-fixation group (28.1%); cold formalin fixation showed the least inadequate cases. Patchiness and central artefact were more frequent in hypo-fixation and standard fixation group compared to the others. MLH1 (closely followed by PMS2) performed worse with regard to immunostaining intensity (p=0.0002) in the standard and in the hypo-fixation group (p< 0.00001). Using a small sample size improved patchiness/central artefacts. This is the first study specifically created to evaluate the impact of fixation on MMR protein IHC, showing that both formalin hypo- and hyper-fixation can cause problems; 24-h formalin fixation as well as cold (4°C) formalin fixation are recommended for successful IHC MMR evaluation.
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Affiliation(s)
- Federica Grillo
- Pathology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
- Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa and IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Murad Ali
- Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa and IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Michele Paudice
- Pathology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa and IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Simona Pigozzi
- Pathology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa and IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Giorgia Anselmi
- Molecular Diagnostic Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Stefano Scabini
- Oncological Surgical Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Stefania Sciallero
- Medical Oncology Unit 1, IRCCS Ospedale Policlinico San Martino, 16132, Genoa, Italy
| | - Nataniele Piol
- Pathology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Luca Mastracci
- Pathology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa and IRCCS Ospedale Policlinico San Martino, Genoa, Italy
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21
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Bacher JW, Udho EB, Strauss EE, Vyazunova I, Gallinger S, Buchanan DD, Pai RK, Templeton AS, Storts DR, Eshleman JR, Halberg RB. A Highly Sensitive Pan-Cancer Test for Microsatellite Instability. J Mol Diagn 2023; 25:806-826. [PMID: 37544360 PMCID: PMC10629437 DOI: 10.1016/j.jmoldx.2023.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 07/10/2023] [Accepted: 07/18/2023] [Indexed: 08/08/2023] Open
Abstract
Microsatellite instability (MSI) is an evolving biomarker for cancer detection and treatment. MSI was first used to identify patients with Lynch syndrome, a hereditary form of colorectal cancer (CRC), but has recently become indispensable in predicting patient response to immunotherapy. To address the need for pan-cancer MSI detection, a new multiplex assay was developed that uses novel long mononucleotide repeat (LMR) markers to improve sensitivity. A total of 469 tumor samples from 20 different cancer types, including 319 from patients with Lynch syndrome, were tested for MSI using the new LMR MSI Analysis System. Results were validated by using deficient mismatch repair (dMMR) status according to immunohistochemistry as the reference standard and compared versus the Promega pentaplex MSI panel. The sensitivity of the LMR panel for detection of dMMR status by immunohistochemistry was 99% for CRC and 96% for non-CRC. The overall percent agreement between the LMR and Promega pentaplex panels was 99% for CRC and 89% for non-CRC tumors. An increased number of unstable markers and the larger size shifts observed in dMMR tumors using the LMR panel increased confidence in MSI determinations. The LMR MSI Analysis System expands the spectrum of cancer types in which MSI can be accurately detected.
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Affiliation(s)
- Jeffery W Bacher
- R&D Clinical Diagnostics, Promega Corporation, Madison, Wisconsin; Department of Medicine, University of Wisconsin, Madison, Wisconsin.
| | - Eshwar B Udho
- R&D Clinical Diagnostics, Promega Corporation, Madison, Wisconsin
| | | | - Irina Vyazunova
- R&D Clinical Diagnostics, Promega Corporation, Madison, Wisconsin
| | - Steven Gallinger
- Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Daniel D Buchanan
- Colorectal Oncogenomics Group, Department of Clinical Pathology, The University of Melbourne, Parkville, Victoria, Australia; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, Parkville, Victoria, Australia; Genomic Medicine and Family Cancer Clinic, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Rish K Pai
- Health Science Research, Mayo Clinic, Scottsdale, Arizona
| | | | - Douglas R Storts
- R&D Clinical Diagnostics, Promega Corporation, Madison, Wisconsin
| | - James R Eshleman
- School of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Richard B Halberg
- Department of Medicine, University of Wisconsin, Madison, Wisconsin; Department of Oncology, McArdle Laboratory of Cancer Research, University of Wisconsin, Madison, Wisconsin; University of Wisconsin Carbone Cancer Center, Madison, Wisconsin.
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22
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Boyarskikh U, Kechin A, Khrapov E, Fedyanin M, Raskin G, Mukhina M, Kravtsova E, Tsukanov A, Achkasov S, Filipenko M. Detecting Microsatellite Instability in Endometrial, Colon, and Stomach Cancers Using Targeted NGS. Cancers (Basel) 2023; 15:5065. [PMID: 37894432 PMCID: PMC10605658 DOI: 10.3390/cancers15205065] [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: 07/12/2023] [Revised: 09/19/2023] [Accepted: 09/19/2023] [Indexed: 10/29/2023] Open
Abstract
PURPOSE To develop a method for testing the MSI based on targeted NGS. METHODS Based on the results of previous studies, 81 microsatellite loci with high variability in MSI-H tumors were selected, and a method for calculating the MSI score was developed. Using the MSI score, we defined the MSI status in endometral (162), colon (153), and stomach (190) cancers. Accuracy of the MSI scores was evaluated by comparison with MMR immunohistochemistry for 137 endometrium (63 dMMR and 74 pMMR), 76 colon (29 dMMR and 47 pMMR), and 81 stomach (8 dMMR and 73 pMMR) cancers. RESULTS Classification of MSS and MSI-H tumors was performed with AUC (0.99), sensitivity (92%), and specificity (98%) for all tumors without division into types. The accuracy of MSI testing in endometrial cancer was lower than for stomach and colon cancer (0.98, 87%, and 100%, respectively). The use of 27 loci only, the most informative for endometrial cancer, increased the overall accuracy (1.00, 99%, and 99%). Comparison of MSI score values in 505 tumors showed that MSI score is significantly higher in colon (p < 10-5) and stomach (p = 0.008) cancer compared with endometrial cancer. CONCLUSION The MSI score accurately determines MSI status for endometrial, colon, and stomach cancers and can be used to quantify the degree of MSI.
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Affiliation(s)
- Ulyana Boyarskikh
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, 630090 Novosibirsk, Russia (E.K.); (M.F.)
| | - Andrey Kechin
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, 630090 Novosibirsk, Russia (E.K.); (M.F.)
| | - Evgeniy Khrapov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, 630090 Novosibirsk, Russia (E.K.); (M.F.)
| | - Mikhail Fedyanin
- State Budgetary Institution of Health Care of Moscow (Moscow Multidisciplinary Clinical Center “Kommunarka”), 142770 Moscow, Russia
| | - Grigory Raskin
- Dr. Berezin Medical Institute, 197758 St. Petersburg, Russia; (G.R.); (M.M.)
| | - Marina Mukhina
- Dr. Berezin Medical Institute, 197758 St. Petersburg, Russia; (G.R.); (M.M.)
| | - Elena Kravtsova
- Dr. Berezin Medical Institute, 197758 St. Petersburg, Russia; (G.R.); (M.M.)
| | - Aleksey Tsukanov
- Ryzhikh National Medical Research Center of Coloproctology, 123423 Moscow, Russia
| | - Sergey Achkasov
- Ryzhikh National Medical Research Center of Coloproctology, 123423 Moscow, Russia
| | - Maksim Filipenko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, 630090 Novosibirsk, Russia (E.K.); (M.F.)
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23
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Hájková N, Bártů MK, Cibula D, Drozenová J, Fabian P, Fadare O, Frühauf F, Hausnerová J, Hojný J, Krkavcová E, Laco J, Lax SF, Matěj R, Méhes G, Michálková R, Němejcová K, Singh N, Stolnicu S, Švajdler M, Zima T, McCluggage WG, Stružinská I, Dundr P. Microsatellite instability in non-endometrioid ovarian epithelial tumors: a study of 400 cases comparing immunohistochemistry, PCR, and NGS based testing with mutation status of MMR genes. Transl Res 2023; 260:61-68. [PMID: 37244485 DOI: 10.1016/j.trsl.2023.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/27/2023] [Accepted: 05/21/2023] [Indexed: 05/29/2023]
Abstract
Testing of microsatellite instability is not only used as a triage for possible Lynch syndrome, but also to predict immunotherapy treatment response. The aim of this study was to assess the frequency of mismatch repair deficiency (MMR-D)/microsatellite instability (MSI) in 400 cases of non-endometrioid ovarian tumors (high-grade serous, low-grade serous, mucinous and clear cell), to compare different methodological approaches of testing, and to assess the optimal approach for next generation sequencing (NGS) MSI testing. For all tumors, we evaluated immunohistochemical (IHC) expression of MMR proteins and assessed microsatellite markers by PCR-based method. Except for high-grade serous carcinoma, we correlated the findings of IHC and PCR with NGS-based MSI testing. We compared the results with somatic and germline mutation in MMR genes. Among the whole cohort, seven MMR-D cases, all clear cell carcinomas (CCC), were found. On PCR analysis, 6 cases were MSI-high and one was MSS. In all cases, mutation of an MMR gene was found; in 2 cases, the mutation was germline (Lynch syndrome). An additional 5 cases with a mutation in MMR gene(s) with MSS status and without MMR-D were identified. We further utilized sequence capture NGS for MSI testing. Employing 53 microsatellite loci provided high sensitivity and specificity. Our study shows that MSI occurs in 7% of CCC while it is rare or absent in other nonendometrioid ovarian neoplasms. Lynch syndrome was present in 2% of patients with CCC. However, some cases with MSH6 mutation can evade all testing methods, including IHC, PCR, and NGS-MSI.
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Affiliation(s)
- Nikola Hájková
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Michaela Kendall Bártů
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - David Cibula
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jana Drozenová
- Department of Pathology, Charles University, 3rd Faculty of Medicine, University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Pavel Fabian
- Department of Oncological Pathology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Oluwole Fadare
- Department of Pathology, University of California San Diego, San Diego, California
| | - Filip Frühauf
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jitka Hausnerová
- Department of Pathology, University Hospital Brno and Medical Faculty, Masaryk University, Brno, Czech Republic
| | - Jan Hojný
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Eva Krkavcová
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jan Laco
- The Fingerland Department of Pathology, Charles University, Faculty of Medicine in Hradec Králové and University Hospital Hradec Králové, Czech Republic
| | - Sigurd F Lax
- Department of Pathology, General Hospital Graz II, Graz, Austria; Johannes Kepler University Linz, Austria
| | - Radoslav Matěj
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic; Department of Pathology, Charles University, 3rd Faculty of Medicine, University Hospital Kralovske Vinohrady, Prague, Czech Republic; Department of Pathology and Molecular Medicine, Third Faculty of Medicine, Charles University, Thomayer University Hospital, Prague, Czech Republic
| | - Gábor Méhes
- Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Romana Michálková
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Kristýna Němejcová
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Naveena Singh
- Department of Cellular Pathology, Barts Health NHS Trust, and Blizard Institute of Core Pathology, Queen Mary University of London, London, United Kingdom
| | - Simona Stolnicu
- Department of Pathology, George E. Palade University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Romania
| | - Marián Švajdler
- Šikl's Department of Pathology, The Faculty of Medicine and Faculty Hospital in Pilsen, Charles University, Pilsen, Czech Republic
| | - Tomáš Zima
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | | | - Ivana Stružinská
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Pavel Dundr
- Department of Pathology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic.
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Moatamed NA, Vahdatshariatpanahi S, Gjertson DW, Sachs CR, Kang Y, Ostrzega N, Huang J, Memarzadeh S. Androgen receptor and its correlation with estrogen and progesterone receptors, aimed for identification of cases for future anti-androgen therapy in endometrial cancers. PLoS One 2023; 18:e0291361. [PMID: 37725629 PMCID: PMC10508627 DOI: 10.1371/journal.pone.0291361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 08/29/2023] [Indexed: 09/21/2023] Open
Abstract
INTRODUCTION The expression of androgen receptor (AR) is not commonly tested or studied in uterine cancers, unlike estrogen receptor (ER) and progesterone receptor (PR) which are positive in most endometrial carcinomas. In this series, we evaluated the expression of AR and its comparison to ER and PR in different types of endometrial cancers and have reviewed the literature. MATERIALS AND METHODS The status of AR, ER, and PR expression were evaluated in 71 cases which were categorized into endometrial endometrioid cancer (EEC), non-endometrioid endometrial cancers (NEEC), and metastatic carcinomas of endometrium. Expression of the receptors were compared to each other as well as to mismatch repair proteins (MMR), p53, and body mass index (BMI) using Fisher's Exact test in the StatPlus software. RESULTS In EECs, the positivity was 97% for all the three receptors. In NEEC, positivity rates were 68%, 48%, and 35% for AR, ER, and PR respectively. In Metastatic carcinomas, AR and ER positivity was seen in 100% while PR was positive in 75% of the cases. In all cancers, the rates were 17% (11/66) for MMR loss, 57% (30/53) for p53 aberrant expression, and 76% (54/71) for the patients with BMI of ≥ 25 (kg/m2). CONCLUSION AR is expressed in a high percentage of endometrial cancers. Its significance is more evident in high-grade NEEC where ER and PR may not be expressed. These findings warrant further evaluation of AR expression and candidacy of this pathway as a potential therapeutic target in endometrial cancers.
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Affiliation(s)
- Neda A. Moatamed
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Saba Vahdatshariatpanahi
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - David W. Gjertson
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- Department of Biostatistics, Fielding School of Public Health at UCLA, Los Angeles, California, United States America
| | - Chana R. Sachs
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Yuna Kang
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Nora Ostrzega
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Jiaoti Huang
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Sanaz Memarzadeh
- Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- UCLA Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California Los Angeles, Los Angeles, California, United States America
- Johnson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, California, United States of America
- Molecular Biology Institute, University of California Los Angeles, Los Angeles, California, United States of America
- VA Greater Los Angeles Healthcare System, Los Angeles, California, United Sates of America
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25
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Zhu Y, Wang P, Wang B, Jiang Z, Li Y, Jiang J, Zhong Y, Xue L, Jiang L. Dual-layer spectral-detector CT for predicting microsatellite instability status and prognosis in locally advanced gastric cancer. Insights Imaging 2023; 14:151. [PMID: 37726599 PMCID: PMC10509117 DOI: 10.1186/s13244-023-01490-x] [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: 05/31/2023] [Accepted: 07/31/2023] [Indexed: 09/21/2023] Open
Abstract
OBJECTIVE To construct and validate a prediction model based on dual-layer detector spectral CT (DLCT) and clinico-radiologic features to predict the microsatellite instability (MSI) status of gastric cancer (GC) and to explore the relationship between the prediction results and patient prognosis. METHODS A total of 264 GC patients who underwent preoperative DLCT examination were randomly allocated into the training set (n = 187) and validation set (n = 80). Clinico-radiologic features and DLCT parameters were used to build the clinical and DLCT model through multivariate logistic regression analysis. A combined DLCT parameter (CDLCT) was constructed to predict MSI. A combined prediction model was constructed using multivariate logistic regression analysis by integrating the significant clinico-radiologic features and CDLCT. The Kaplan-Meier survival analysis was used to explore the prognostic significant of the prediction results of the combined model. RESULTS In this study, there were 70 (26.52%) MSI-high (MSI-H) GC patients. Tumor location and CT_N staging were independent risk factors for MSI-H. In the validation set, the area under the curve (AUC) of the clinical model and DLCT model for predicting MSI status was 0.721 and 0.837, respectively. The combined model achieved a high prediction efficacy in the validation set, with AUC, sensitivity, and specificity of 0.879, 78.95%, and 75.4%, respectively. Survival analysis demonstrated that the combined model could stratify GC patients according to recurrence-free survival (p = 0.010). CONCLUSION The combined model provides an efficient tool for predicting the MSI status of GC noninvasively and tumor recurrence risk stratification after surgery. CRITICAL RELEVANCE STATEMENT MSI is an important molecular subtype in gastric cancer (GC). But MSI can only be evaluated using biopsy or postoperative tumor tissues. Our study developed a combined model based on DLCT which could effectively predict MSI preoperatively. Our result also showed that the combined model could stratify patients according to recurrence-free survival. It may be valuable for clinicians in choosing appropriate treatment strategies to avoid tumor recurrence and predicting clinical prognosis in GC. KEY POINTS • Tumor location and CT_N staging were independent predictors for MSI-H in GC. • Quantitative DLCT parameters showed potential in predicting MSI status in GC. • The combined model integrating clinico-radiologic features and CDLCT could improve the predictive performance. • The prediction results could stratify the risk of tumor recurrence after surgery.
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Affiliation(s)
- Yongjian Zhu
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Peng Wang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Bingzhi Wang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Zhichao Jiang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Ying Li
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Jun Jiang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yuxin Zhong
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Liyan Xue
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Liming Jiang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
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Vanoli A, Guerini C, Arpa G, Klersy C, Grillo F, Casadei Gardini A, De Hertogh G, Ferrante M, Moens A, Furlan D, Sessa F, Quaquarini E, Lenti MV, Neri G, Macciomei MC, Fassan M, Cascinu S, Paulli M, Graham RP, Di Sabatino A. Mismatch repair deficiency as prognostic factor for stage III small bowel adenocarcinoma: A multicentric international study. Dig Liver Dis 2023; 55:1261-1269. [PMID: 37236851 DOI: 10.1016/j.dld.2023.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/29/2023] [Accepted: 05/01/2023] [Indexed: 05/28/2023]
Abstract
BACKGROUND Small bowel adenocarcinoma (SBA) is a rare cancer with an aggressive behavior. No study has specifically addressed the putative prognostic role of mismatch repair status in stage III SBAs. AIMS We aimed to investigate whether mismatch repair deficiency is associated with cancer-specific survival in a Western cohort of patients with stage III SBAs. METHODS In this retrospective multicentric international cohort study, we enrolled 70 patients who underwent surgically resection for stage III SBAs and we analyzed the frequency of mismatch repair deficiency, tested by immunohistochemistry for mismatch repair proteins and by polymerase chain reaction for microsatellite instability, and its association with cancer-specific survival and other clinic-pathologic factors. RESULTS We found sixteen (23%) patients with mismatch repair deficient adenocarcinoma, without discordance between immunohistochemical and polymerase chain reaction for microsatellite instability analyses. Mismatch repair deficiency proved to be associated with a better outcome both at univariable analysis (hazard ratio: 0.28, 95% confidence interval: 0.08-0.91, p: 0.035) and in bivariable models adjusted for patient age or gender, tumor site, pT4 stage, tumor budding, and perineural invasion. CONCLUSION This study highlights the importance of testing mismatch repair status to improve prognostic stratification in stage III SBAs.
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Affiliation(s)
- Alessandro Vanoli
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, Pavia 27100, Italy; Unit of Anatomic Pathology, Fondazione IRCCS San Matteo Hospital, Pavia 27100, Italy
| | - Camilla Guerini
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, Pavia 27100, Italy
| | - Giovanni Arpa
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, Pavia 27100, Italy
| | - Catherine Klersy
- Clinical Epidemiology and Biometry, IRCCS San Matteo Hospital Foundation, University of Pavia, Pavia 27100, Italy
| | - Federica Grillo
- Pathology Unit, Department of Surgical and Diagnostic Sciences, University of Genoa and Ospedale Policlinico San Martino University Hospital, Genoa 16132, Italy
| | - Andrea Casadei Gardini
- Department of Oncology, Vita-Salute San Raffaele University, IRCCS San Raffaele Scientific Institute Hospital, Milan 20132, Italy
| | - Gert De Hertogh
- Department of Pathology, KU Leuven University Hospitals, Leuven 3000, Belgium
| | - Marc Ferrante
- Department of Gastroenterology and Hepatology, University Hospitals, KU Leuven, Leuven 3000, Belgium
| | - Annick Moens
- Department of Gastroenterology and Hepatology, University Hospitals, KU Leuven, Leuven 3000, Belgium
| | - Daniela Furlan
- Pathology Unit, Department of Medicine and Surgery, University of Insubria, Varese 21100, Italy
| | - Fausto Sessa
- Pathology Unit, Department of Medicine and Surgery, University of Insubria, Varese 21100, Italy
| | - Erica Quaquarini
- Medical Oncology Unit, ICS Maugeri-IRCCS SpA SB, Pavia 27100, Italy
| | - Marco Vincenzo Lenti
- Department of Internal Medicine, University of Pavia, San Matteo Hospital Foundation, Pavia 27100, Italy
| | - Giuseppe Neri
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, Pavia 27100, Italy
| | | | - Matteo Fassan
- Surgical Pathology and Cytopathology Unit, Department of Medicine, DIMED, University of Padua, Padua 35122, Italy; Veneto Institute of Oncology, IOV-IRCCS, Padua 35128, Italy
| | - Stefano Cascinu
- Department of Oncology, Vita-Salute San Raffaele University, IRCCS San Raffaele Scientific Institute Hospital, Milan 20132, Italy
| | - Marco Paulli
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, Pavia 27100, Italy; Unit of Anatomic Pathology, Fondazione IRCCS San Matteo Hospital, Pavia 27100, Italy
| | | | - Antonio Di Sabatino
- Department of Internal Medicine, University of Pavia, San Matteo Hospital Foundation, Pavia 27100, Italy.
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27
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Kasi PM, Bucheit LA, Liao J, Starr J, Barata P, Klempner SJ, Gandara D, Shergill A, Madeira da Silva L, Weipert C, Zhang N, Pretz C, Hardin A, Kiedrowski LA, Odegaard JI. Pan-Cancer Prevalence of Microsatellite Instability-High (MSI-H) Identified by Circulating Tumor DNA and Associated Real-World Clinical Outcomes. JCO Precis Oncol 2023; 7:e2300118. [PMID: 37769226 DOI: 10.1200/po.23.00118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/19/2023] [Accepted: 08/07/2023] [Indexed: 09/30/2023] Open
Abstract
PURPOSE Immune checkpoint inhibitors are approved for advanced solid tumors with microsatellite instability-high (MSI-H). Although several technologies can assess MSI-H status, detection and outcomes with circulating tumor DNA (ctDNA)-detected MSI-H are lacking. As such, we examined pan-cancer MSI-H prevalence across 21 cancers and outcomes after ctDNA-detected MSI-H. METHODS Patients with advanced cancer who had ctDNA testing (Guardant360) from October 1, 2018, to June 30, 2022, were retrospectively assessed for prevalence. GuardantINFORM, which includes anonymized genomic and structured payer claims data, was queried to assess outcomes. Patients who initiated new treatment within 90 days of MSI-H detection were sorted into immunotherapy included in treatment (IO) or no immunotherapy included (non-IO) groups. Real-world time to treatment discontinuation (rwTTD) and real-world time to next treatment (rwTTNT) were assessed in months as proxies of progression-free survival (PFS); real-world overall survival (rwOS) was assessed in months. Cox regression tests analyzed differences. Colorectal cancer, non-small-cell lung cancer (NSCLC), prostate cancer, gastroesophageal cancer, and uterine cancer (UC) were assessed independently; all other cancers were grouped. RESULTS In total, 1.4% of 171,881 patients had MSI-H detected. Of 770 patients with outcomes available, rwTTD and rwTTNT were significantly longer for patients who received IO compared with non-IO for all cancers (P ≤ .05; hazard ratio [HR] range, 0.31-0.52 and 0.25-0.54, respectively) except NSCLC. rwOS had limited follow-up for all cohorts except UC (IO 39 v non-IO 23 months; HR, 0.18; P = .004); however, there was a consistent trend toward prolonged OS in IO-treated patients. CONCLUSION These data support use of a well-validated ctDNA assay to detect MSI-H across solid tumors and suggest prolonged PFS in patients treated with IO-containing regimens after detection. Tumor-agnostic, ctDNA-based MSI testing may be reliable for rapid decision making.
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Affiliation(s)
| | | | | | | | - Pedro Barata
- Case Western Reserve University/University Hospitals, Cleveland, OH
| | | | - David Gandara
- UC Davis Comprehensive Cancer Center, Sacramento, CA
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28
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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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29
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Wang C, Kuang W, Zeng J, Ren Y, Liu Q, Sun H, Feng M, Liang D. A retrospective study of consistency between immunohistochemistry and polymerase chain reaction of microsatellite instability in endometrial cancer. PeerJ 2023; 11:e15920. [PMID: 37663290 PMCID: PMC10470453 DOI: 10.7717/peerj.15920] [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: 05/12/2023] [Accepted: 07/28/2023] [Indexed: 09/05/2023] Open
Abstract
Objectives Identification of endometrial cancers (EC) with mismatch repair deficiency (dMMR) or microsatellite instability-high (MSI-H) is essential for Lynch syndrome screening and treatment stratification. We aimed to assess the utility of immunohistochemistry (IHC) staining for MMR protein expression and polymerase chain reaction (PCR)-based MSI assays in EC and the correlation between MMR/MSI status and various clinicopathological parameters. Methods We reviewed the clinical and pathological information of 333 patients with EC. MMR protein expression was assessed as retained or lost to determine MMR status by IHC staining, and MSI status was identified by PCR capillary electrophoresis (PCR-CE) testing with a National Cancer Institute (NCI) panel. The correlation of MMR/MSI status with clinicopathological features was determined by statistical analysis. Discrepant results were further analyzed using an alternative PCR-CE MSI (Promega panel) method, MLH1 promoter methylation assays, and next-generation sequencing (NGS). Results Among the EC patients, the overall percentage of dMMR was 25.2%, and the overall percentage of MSI-H was 24%. Among the dMMR patients, 50 (59.5%) showed loss of MLH1 and PMS2 expression, 19 (22.6%) loss of MSH2 and MSH6 expression, and seven (8.3%) and eight (9.5%) loss of PMS2 and MSH6 expression, respectively. The dMMR subgroup was significantly younger than the pMMR subgroup, especially for <60-years-old patients (p = 0.038). In addition, we identified a strong correlation between MMR/MSI status and high-grade endometrioid or nonendometrioid components (p = 0.004 or p = 0.003). IHC staining and PCR-CE assay results showed a high level of overall concordance (98.8%, Cohen's κ = 0.98). Four patients were found to have dMRR/MSS in both examinations. We reanalyzed them with additional methods. One case showed MLH1 promotor methylation, and the other three cases harbored MSH6 germline pathogenic variations. One of the cases with MSH6 deficiency was reanalyzed as MSI-H by alternative PCR-CE assay or NGS testing. Conclusions This study indicates that the combined use of MMR-IHC and PCR-CE MSI analyses may effectively avoid misdiagnoses of EC patients with dMMR/MSI-H. However, use of PCR-CE alone to evaluate MMR/MSI status may lead to missed diagnosis, especially for EC patients with MSH6 deficiency and presenting MSS.
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Affiliation(s)
- Cheng Wang
- Department of Pathology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Chengdu, Sichuan, China
| | - Wei Kuang
- Department of Pathology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Chengdu, Sichuan, China
| | - Jing Zeng
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yang Ren
- West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Qianqi Liu
- Department of Pathology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Chengdu, Sichuan, China
| | - Huanxin Sun
- Department of Pathology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Chengdu, Sichuan, China
| | - Min Feng
- Department of Pathology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Chengdu, Sichuan, China
| | - Dongni Liang
- Department of Pathology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Chengdu, Sichuan, China
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30
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Yoshida H, Takigawa W, Kobayashi-Kato M, Nishikawa T, Shiraishi K, Ishikawa M. Mismatch Repair Protein Expression in Endometrial Cancer: Assessing Concordance and Unveiling Pitfalls in Two Different Immunohistochemistry Assays. J Pers Med 2023; 13:1260. [PMID: 37623510 PMCID: PMC10455692 DOI: 10.3390/jpm13081260] [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: 07/15/2023] [Revised: 08/08/2023] [Accepted: 08/14/2023] [Indexed: 08/26/2023] Open
Abstract
This study aimed to compare the concordance and interchangeability of the Dako/Agilent and Ventana/Roche mismatch repair (MMR) immunohistochemistry (IHC) assays commonly used in pathology. It also aimed to provide diagnostic insights by examining the frequency and characteristics of the dot-like artifact observed in MLH1 M1 clone staining in endometrial cancer. Fifty endometrial cancer cases with MMR deficiency, excised between 2011 and 2018, were included in the study. IHC was performed using primary antibody clones from Ventana/Roche (MLH1, clone M1; MSH2, G219-1129; MSH6, SP93; PMS2, A16-4) and Dako/Agilent (MLH1, ES05; MSH2, FE11; MSH6, EP49; PMS2, EP51). Both assays were conducted using respective autostainers. The Dako/Agilent assay showed a loss of MLH1 in 26 cases, MSH2 in 12 cases, MSH6 in 23 cases, and PMS2 in 28 cases. The two assays had a complete agreement in MMR protein expression or loss. The dot-like artifact in MLH1 M1 clone staining was observed in 77% (20/26) of cases, predominantly in the surface area of the tumor, ranging from 5% to 40% (median: 10%). These findings highlight the high concordance between the MMR-IHC assays and emphasize the importance of considering the dot-like artifact in MLH1 M1 clone staining when diagnosing endometrial cancer with MMR deficiency.
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Affiliation(s)
- Hiroshi Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Waku Takigawa
- Department of Gynecology, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Mayumi Kobayashi-Kato
- Department of Gynecology, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Tadaaki Nishikawa
- Department of Medical Oncology, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo 104-0045, Japan;
| | - Kouya Shiraishi
- Division of Genome Biology, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Mitsuya Ishikawa
- Department of Gynecology, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
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Loong HH, Shimizu T, Prawira A, Tan AC, Tran B, Day D, Tan DSP, Ting FIL, Chiu JW, Hui M, Wilson MK, Prasongsook N, Koyama T, Reungwetwattana T, Tan TJ, Heong V, Voon PJ, Park S, Tan IB, Chan SL, Tan DSW. Recommendations for the use of next-generation sequencing in patients with metastatic cancer in the Asia-Pacific region: a report from the APODDC working group. ESMO Open 2023; 8:101586. [PMID: 37356359 PMCID: PMC10319859 DOI: 10.1016/j.esmoop.2023.101586] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/27/2023] [Accepted: 05/18/2023] [Indexed: 06/27/2023] Open
Abstract
INTRODUCTION Next-generation sequencing (NGS) diagnostics have shown clinical utility in predicting survival benefits in patients with certain cancer types who are undergoing targeted drug therapies. Currently, there are no guidelines or recommendations for the use of NGS in patients with metastatic cancer from an Asian perspective. In this article, we present the Asia-Pacific Oncology Drug Development Consortium (APODDC) recommendations for the clinical use of NGS in metastatic cancers. METHODS The APODDC set up a group of experts in the field of clinical cancer genomics to (i) understand the current NGS landscape for metastatic cancers in the Asia-Pacific (APAC) region; (ii) discuss key challenges in the adoption of NGS testing in clinical practice; and (iii) adapt/modify the European Society for Medical Oncology guidelines for local use. Nine cancer types [breast cancer (BC), gastric cancer (GC), nasopharyngeal cancer (NPC), ovarian cancer (OC), prostate cancer, lung cancer, and colorectal cancer (CRC) as well as cholangiocarcinoma and hepatocellular carcinoma (HCC)] were identified, and the applicability of NGS was evaluated in daily practice and/or clinical research. Asian ethnicity, accessibility of NGS testing, reimbursement, and socioeconomic and local practice characteristics were taken into consideration. RESULTS The APODDC recommends NGS testing in metastatic non-small-cell lung cancer (NSCLC). Routine NGS testing is not recommended in metastatic BC, GC, and NPC as well as cholangiocarcinoma and HCC. The group suggested that patients with epithelial OC may be offered germline and/or somatic genetic testing for BReast CAncer gene 1 (BRCA1), BRCA2, and other OC susceptibility genes. Access to poly (ADP-ribose) polymerase inhibitors is required for NGS to be of clinical utility in prostate cancer. Allele-specific PCR or a small-panel multiplex-gene NGS was suggested to identify key alterations in CRC. CONCLUSION This document offers practical guidance on the clinical utility of NGS in specific cancer indications from an Asian perspective.
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Affiliation(s)
- H H Loong
- Department of Clinical Oncology, The Chinese University of Hong Kong, Hong Kong, China
| | - T Shimizu
- Department of Pulmonary Medicine and Medical Oncology, Wakayama Medical University Graduate School of Medicine, Wakayama, Japan
| | - A Prawira
- Cancer Trials and Research Unit, Prince of Wales Hospital, Sydney, Australia
| | - A C Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - B Tran
- Department of Oncology, Peter MacCallum Cancer Centre, Melbourne
| | - D Day
- Department of Oncology, Monash Health and Monash University, Australia
| | - D S P Tan
- Department of Haematology-Oncology, National University Cancer Institute, Singapore
| | - F I L Ting
- Department of Medicine, Dr. Pablo O. Torre Memorial Hospital, Bacolod, Philippines
| | - J W Chiu
- Department of Medicine, The University of Hong Kong, HKSAR, Pok Fu Lam, Hong Kong, China
| | - M Hui
- Department of Medical Oncology, Chris O'Brien Lifehouse, Camperdown, Australia
| | - M K Wilson
- Department of Medical Oncology, Auckland City Hospital, Auckland, New Zealand
| | - N Prasongsook
- Division of Medical Oncology, Phramongkutklao Hospital, Bangkok, Thailand
| | - T Koyama
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - T Reungwetwattana
- Division of Medical Oncology, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - T J Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - V Heong
- Department Medical Oncology, Tan Tock Seng Hospital, Singapore
| | - P J Voon
- Radiotherapy and Oncology Department, Hospital Umum Sarawak, Kuching, Malaysia
| | - S Park
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - I B Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - S L Chan
- Department of Clinical Oncology, The Chinese University of Hong Kong, Hong Kong, China
| | - D S W Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore.
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32
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Grillo F, Paudice M, Gambella A, Bozzano S, Sciallero S, Puccini A, Lastraioli S, Dono M, Parente P, Vanoli A, Angerilli V, Fassan M, Mastracci L. Evaluating mismatch repair deficiency in colorectal cancer biopsy specimens. Histochem Cell Biol 2023:10.1007/s00418-023-02202-8. [PMID: 37284845 PMCID: PMC10386921 DOI: 10.1007/s00418-023-02202-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2023] [Indexed: 06/08/2023]
Abstract
Mismatch repair (MMR) testing on all new cases of colorectal cancer (CRC) has customarily been preferably performed on surgical specimens, as more tissue is available; however, new clinical trials for the use of immune checkpoint inhibitors in the neoadjuvant setting require MMR testing on biopsy samples. This study aims at identifying advantages, disadvantages and any potential pitfalls in MMR evaluation on biopsy tissue and how to cope with them. The study is prospective-retrospective, recruiting 141 biopsies (86 proficient (p)MMR and 55 deficient (d)MMR) and 97 paired surgical specimens (48 pMMR; 49 dMMR). In biopsy specimens, a high number of indeterminate stains was observed, in particular for MLH1 (31 cases, 56.4%). The main reasons were a punctate nuclear expression of MLH1, relatively weak MLH1 nuclear expression compared to internal controls, or both (making MLH1 loss difficult to interpret), which was solved by reducing primary incubation times for MLH1. A mean of ≥ 5 biopsies had adequate immunostains, compared to ≤ 3 biopsies in inadequate cases. Conversely, surgical specimens rarely suffered from indeterminate reactions, while weaker staining intensity (p < 0.007) for MLH1 and PMS2 and increased patchiness grade (p < 0.0001) were seen. Central artefacts were almost exclusive to surgical specimens. MMR status classification was possible in 92/97 matched biopsy/resection specimen cases, and all of these were concordant (47 pMMR and 45 dMMR). Evaluation of MMR status on CRC biopsy samples is feasible, if pitfalls in interpretation are known, making laboratory-specific appropriate staining protocols fundamental for high-quality diagnoses.
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Affiliation(s)
- F Grillo
- IRCCS Ospedale Policlinico San Martino, Largo Benzi 10, 16132, Genoa, Italy.
- Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy.
| | - M Paudice
- IRCCS Ospedale Policlinico San Martino, Largo Benzi 10, 16132, Genoa, Italy
- Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - A Gambella
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - S Bozzano
- Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - S Sciallero
- Medical Oncology Unit 1, IRCCS Ospedale Policlinico San Martino, 16132, Genoa, Italy
| | - A Puccini
- Medical Oncology and Hematology Unit, IRCCS Humanitas Research Hospital, Humanitas Cancer Center, Rozzano, Milan, Italy
| | - S Lastraioli
- Molecular Diagnostic Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - M Dono
- Molecular Diagnostic Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - P Parente
- Pathology Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, FG, Italy
| | - A Vanoli
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, Pavia, Italy
- Anatomic Pathology Unit, Fondazione IRCCS San Matteo Hospital, Pavia, Italy
| | - V Angerilli
- Department of Medicine (DIMED), Surgical Pathology Unit, University Hospital of Padua, Padua, Italy
| | - M Fassan
- Department of Medicine (DIMED), Surgical Pathology Unit, University Hospital of Padua, Padua, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - L Mastracci
- IRCCS Ospedale Policlinico San Martino, Largo Benzi 10, 16132, Genoa, Italy
- Pathology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
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Disis ML, Adams SF, Bajpai J, Butler MO, Curiel T, Dodt SA, Doherty L, Emens LA, Friedman CF, Gatti-Mays M, Geller MA, Jazaeri A, John VS, Kurnit KC, Liao JB, Mahdi H, Mills A, Zsiros E, Odunsi K. Society for Immunotherapy of Cancer (SITC) clinical practice guideline on immunotherapy for the treatment of gynecologic cancer. J Immunother Cancer 2023; 11:e006624. [PMID: 37295818 PMCID: PMC10277149 DOI: 10.1136/jitc-2022-006624] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2023] [Indexed: 06/12/2023] Open
Abstract
Advanced gynecologic cancers have historically lacked effective treatment options. Recently, immune checkpoint inhibitors (ICIs) have been approved by the US Food and Drug Administration for the treatment of cervical cancer and endometrial cancer, offering durable responses for some patients. In addition, many immunotherapy strategies are under investigation for the treatment of earlier stages of disease or in other gynecologic cancers, such as ovarian cancer and rare gynecologic tumors. While the integration of ICIs into the standard of care has improved outcomes for patients, their use requires a nuanced understanding of biomarker testing, treatment selection, patient selection, response evaluation and surveillance, and patient quality of life considerations, among other topics. To address this need for guidance, the Society for Immunotherapy of Cancer (SITC) convened a multidisciplinary panel of experts to develop a clinical practice guideline. The Expert Panel drew on the published literature as well as their own clinical experience to develop evidence- and consensus-based recommendations to provide guidance to cancer care professionals treating patients with gynecologic cancer.
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Affiliation(s)
- Mary L Disis
- Cancer Vaccine Institute, University of Washington, Seattle, Washington, USA
| | - Sarah F Adams
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, The University of New Mexico Comprehensive Cancer Center, Albuquerque, New Mexico, USA
| | - Jyoti Bajpai
- Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Marcus O Butler
- Department of Medical Oncology and Hematology, Princess Margaret Hospital Cancer Centre, Toronto, Ontario, Canada
| | - Tyler Curiel
- Dartmouth-Hitchcock's Norris Cotton Cancer Center, Dartmouth Medical School, Hanover, New Hampshire, USA
| | | | - Laura Doherty
- Program in Women's Oncology, Women and Infants Hospital of Rhode Island, Providence, Rhode Island, USA
| | - Leisha A Emens
- Department of Medicine, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Claire F Friedman
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Margaret Gatti-Mays
- Pelotonia Institute for Immuno-Oncology, Division of Medical Oncology, The Ohio State University, Columbus, Ohio, USA
| | - Melissa A Geller
- Department of Obstetrics, Gynecology & Women's Health, Division of Gynecologic Oncology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Amir Jazaeri
- Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Veena S John
- Department of Medical Oncology & Hematology, Northwell Health Cancer Institute, Lake Success, New York, USA
| | - Katherine C Kurnit
- University of Chicago Medicine Comprehensive Cancer Center, University of Chicago, Chicago, Illinois, USA
| | - John B Liao
- University of Washington School of Medicine, Seattle, Washington, USA
| | - Haider Mahdi
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Anne Mills
- Department of Pathology, University of Virginia Health System, Charlottesville, Virginia, USA
| | - Emese Zsiros
- Department of Gynecologic Oncology, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - Kunle Odunsi
- The University of Chicago Medicine Comprehensive Cancer Center, Chicago, Illinois, USA
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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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Zhen DB, Safyan RA, Konick EQ, Nguyen R, Prichard CC, Chiorean EG. The role of molecular testing in pancreatic cancer. Therap Adv Gastroenterol 2023; 16:17562848231171456. [PMID: 37197396 PMCID: PMC10184226 DOI: 10.1177/17562848231171456] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/06/2023] [Indexed: 05/19/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDA) is highly aggressive and has few treatment options. To personalize therapy, it is critical to delineate molecular subtypes and understand inter- and intra-tumoral heterogeneity. Germline testing for hereditary genetic abnormalities is recommended for all patients with PDA and somatic molecular testing is recommended for all patients with locally advanced or metastatic disease. KRAS mutations are present in 90% of PDA, while 10% are KRAS wild type and are potentially targetable with epidermal growth factor receptor blockade. KRASG12C inhibitors have shown activity in G12C-mutated cancers, and novel G12D and pan-RAS inhibitors are in clinical trials. DNA damage repair abnormalities, germline or somatic, occur in 5-10% of patients and are likely to benefit from DNA damaging agents and maintenance therapy with poly-ADP ribose polymerase inhibitors. Fewer than 1% of PDA harbor microsatellite instability high status and are susceptible to immune checkpoint blockade. Albeit very rare, occurring in <1% of patients with KRAS wild-type PDAs, BRAF V600E mutations, RET and NTRK fusions are targetable with cancer agnostic Food and Drug Administration-approved therapies. Genetic, epigenetic, and tumor microenvironment targets continue to be identified at an unprecedented pace, enabling PDA patients to be matched to targeted and immune therapeutics, including antibody-drug conjugates, and genetically engineered chimeric antigen receptor or T-cell receptor - T-cell therapies. In this review, we highlight clinically relevant molecular alterations and focus on targeted strategies that can improve patient outcomes through precision medicine.
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Affiliation(s)
- David B. Zhen
- University of Washington School of Medicine, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Rachael A. Safyan
- University of Washington School of Medicine, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Eric Q. Konick
- University of Washington, School of Medicine Seattle, WA, USA
| | - Ryan Nguyen
- University of Washington, School of Medicine Seattle, WA, USA
| | | | - E. Gabriela Chiorean
- University of Washington School of Medicine, Fred Hutchinson Cancer Center, 825 Eastlake Avenue East, LG-465, Seattle, WA 98109, USA Fred Hutchinson
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36
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Nourmohammadi Abadchi S, Sena LA, Antonarakis ES, Pritchard CC, Eshleman JR, Konnick EQ, Salipante SJ, Shenderov E, Lotan TL. MLH1 Loss in Primary Prostate Cancer. JCO Precis Oncol 2023; 7:e2200611. [PMID: 37196219 PMCID: PMC10309570 DOI: 10.1200/po.22.00611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/25/2023] [Accepted: 03/17/2023] [Indexed: 05/19/2023] Open
Abstract
PURPOSE Among mismatch repair-deficient (MMRd) prostate cancers, loss of MLH1 is relatively uncommon and few cases have been reported in detail. METHODS Here, we describe the molecular features of two cases of primary prostate cancer with MLH1 loss detected by immunohistochemistry, and in one case, confirmed via transcriptomic profiling. RESULTS Both cases were microsatellite stable on standard polymerase chain reaction (PCR)-based microsatellite instability (MSI) testing, but showed evidence of MSI on a newer PCR-based long mononucleotide repeat (LMR) assay and by next-generation sequencing. Germline testing was negative for Lynch syndrome-associated mutations in both cases. Targeted or whole-exome tumor sequencing using multiple commercial/academic platforms (Foundation, Tempus, JHU, and UW-OncoPlex) showed modestly elevated, though variable, tumor mutation burden estimates (2.3-10 mutations/Mb) consistent with MMRd, but without identifiable pathogenic single-nucleotide or indel mutations in MLH1. Copy-number analysis confirmed biallelic MLH1 loss in one case and monoallelic MLH1 loss in the second case, without evidence of MLH1 promoter hypermethylation in either. The second patient was treated with single-agent pembrolizumab and demonstrated a short-lived prostate-specific antigen response. CONCLUSION These cases highlight the challenges in identifying MLH1-deficient prostate cancers using standard MSI testing and commercial sequencing panels, and support the utility of immunohistochemical assays and LMR- or sequencing-based MSI testing for detection of MMRd prostate cancers.
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Affiliation(s)
| | - Laura A. Sena
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Emmanuel S. Antonarakis
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD
- University of Minnesota Masonic Cancer Center, Minneapolis, MN
| | - Colin C. Pritchard
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA
| | - James R. Eshleman
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Eric Q. Konnick
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA
| | - Stephen J. Salipante
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA
| | - Eugene Shenderov
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD
- The Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins School of Medicine, Baltimore, MD
| | - Tamara L. Lotan
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Urology, Johns Hopkins School of Medicine, Baltimore, MD
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37
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Mendoza RP, Wang P, Schulte JJ, Tjota MY, Jani I, Martinez AC, Haridas R, Wanjari P, Steinhardt G, Brown N, Betz BL, Chapel DB, Kertowidjojo E, Yamada SD, Bennett JA. Endometrial Carcinomas With Subclonal Loss of Mismatch Repair Proteins: A Clinicopathologic and Genomic Study. Am J Surg Pathol 2023; 47:589-598. [PMID: 36866757 DOI: 10.1097/pas.0000000000002031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 01/27/2023] [Indexed: 03/04/2023]
Abstract
Subclonal loss of mismatch repair (MMR) proteins has been described in a small subset of endometrial carcinomas (ECs), but the genomic basis for this phenomenon has received limited attention. Herein, we retrospectively evaluated all ECs with MMR immunohistochemistry (n=285) for subclonal loss, and in those (n=6), performed a detailed clinicopathologic and genomic comparison of the MMR-deficient and MMR-proficient components. Three tumors were FIGO stage IA, and one each stage IB, II, and IIIC2. Patterns of subclonal loss were as follows: (1) 3 FIGO grade 1 endometrioid carcinomas with subclonal MLH1/PMS2, MLH1 promoter hypermethylation, and no MMR gene mutations; (2) POLE -mutated FIGO grade 3 endometrioid carcinoma with subclonal PMS2, and PMS2 and MSH6 mutations limited to the MMR-deficient component; (3) dedifferentiated carcinoma with subclonal MSH2/MSH6, as well as complete loss of MLH1/PMS2, MLH1 promoter hypermethylation, and PMS2 and MSH6 mutations in both components; (4) dedifferentiated carcinoma with subclonal MSH6, and somatic and germline MSH6 mutations in both components, but with a higher allele frequency in MMR-deficient foci. Recurrences occurred in 2 patients, one consisted of the MMR-proficient component from a FIGO 1 endometrioid carcinoma, while the other was from the MSH6 -mutated dedifferentiated endometrioid carcinoma. At the last follow-up (median: 44 mo), 4 patients were alive and disease-free and 2 were alive with disease. In summary, subclonal MMR loss reflects subclonal and often complex genomic and epigenetic alterations, which may have therapeutic implications and therefore must be reported when present. In addition, subclonal loss can occur in both POLE -mutated and Lynch syndrome-associated ECs.
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Affiliation(s)
| | | | - Jefree J Schulte
- Departments of Pathology
- Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, WI
| | | | - Ina Jani
- Obstetrics and Gynecology, University of Chicago, Chicago, IL
| | - Anna C Martinez
- Departments of Pathology
- Obstetrics and Gynecology, University of Chicago, Chicago, IL
| | | | | | | | - Noah Brown
- Department of Pathology, University of Michigan, Ann Arbor, MI
| | - Bryan L Betz
- Department of Pathology, University of Michigan, Ann Arbor, MI
| | - David B Chapel
- Department of Pathology, University of Michigan, Ann Arbor, MI
| | | | - S D Yamada
- Obstetrics and Gynecology, University of Chicago, Chicago, IL
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Hill BL, Graf RP, Shah K, Danziger N, Lin DI, Quintanilha J, Li G, Haberberger J, Ross JS, Santin AD, Slomovitz B, Elvin JA, Eskander RN. Mismatch repair deficiency, next-generation sequencing-based microsatellite instability, and tumor mutational burden as predictive biomarkers for immune checkpoint inhibitor effectiveness in frontline treatment of advanced stage endometrial cancer. Int J Gynecol Cancer 2023; 33:504-513. [PMID: 36750267 PMCID: PMC10086481 DOI: 10.1136/ijgc-2022-004026] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/23/2023] [Indexed: 02/09/2023] Open
Abstract
OBJECTIVE Molecular profiling is developing to inform treatment in endometrial cancer. Using real world evidence, we sought to evaluate frontline immune checkpoint inhibitor vs chemotherapy effectiveness in advanced endometrial cancer, stratified by Tumor Mutational Burden (TMB) ≥10 mut/MB and microsatellite instability (MSI). METHODS Patients with advanced endometrial cancer in the US-based de-identified Flatiron Health-Foundation Medicine Clinico-Genomic Database were included. Data originated from patients treated between January 2011- March 2022 at 280 US clinics. Next-generation sequencing assays were performed via FoundationOne or FoundationOneCDx. Longitudinal clinical data were derived from electronic health records. Immune checkpoint inhibitor treatment included pembrolizumab, dostarlimab, and nivolumab monotherapies. Time to next treatment, time to treatment discontinuation, and overall survival were assessed with the log-rank test and Cox proportional hazard models with adjusted hazard ratios (aHR) for known prognostic factors. We used the Likelihood ratio test to compare biomarker performance. RESULTS A total of 343 patients received chemotherapy and 28 received immune checkpoint inhibitor monotherapy as frontline treatment. Patients who received monotherapy were more likely to be stage III at diagnosis (immune checkpoint inhibitor: 54.6% vs chemotherapy: 15.0%; p<0.001) and more likely to test MSI-high via next-generation sequencing (immune checkpoint inhibitor: 53.6% vs chemotherapy: 19.2%; p<0.001). In MSI-high cancers, single-agent immune checkpoint inhibitor had a more favorable time to next treatment (aHR: 0.18, p=0.001) and overall survival (aHR 0.29, p=0.045). Additional analyses on 70 unique tumor specimens revealed mismatch repair deficiency (dMMR) via immunohistochemistry and MSI-high via next-generation sequencing concordance (91%), with nominal improvement of MSI over dMMR to predict time to treatment discontinuation (p=0.030), time to next treatment (p=0.032), and overall survival (p=0.22). MSI status was concordant with tumor mutational burden ≥10 in 94.3% of cases. CONCLUSION Immune checkpoint inhibitors may have improved efficacy over chemotherapy in frontline treatment for advanced endometrial cancer defined by MSI-high using next-generation sequencing as a nominally better predictor of outcomes than dMMR with immunohistochemistry. This provides the biologic rationale of active phase III trials.
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Affiliation(s)
- Breana L Hill
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Gynecologic Oncology, University of California San Diego Moores Cancer Center, La Jolla, California, USA
| | - Ryon P Graf
- Department of Clinical Development, Medical Team, Foundation Medicine Inc, San Diego, California, USA
| | - Kunal Shah
- Department of Data & Insights Delivery, Foundation Medicine Inc, Cambridge, Massachusetts, USA
| | - Natalie Danziger
- Department of Pathology and Diagnostic Medicine, Medical Team, Foundation Medicine Inc, Cambridge, Massachusetts, USA
| | - Douglas I Lin
- Department of Pathology and Diagnostic Medicine, Medical Team, Foundation Medicine Inc, Cambridge, Massachusetts, USA
| | - Julia Quintanilha
- Department of Clinical Development, Medical Team, Foundation Medicine Inc, Cambridge, Massachusetts, USA
| | - Gerald Li
- Department of Clinical Development, Medical Team, Foundation Medicine Inc, Cambridge, Massachusetts, USA
| | - James Haberberger
- Department of Pathology and Diagnostic Medicine, Medical Team, Foundation Medicine Inc, Morrisville, North Carolina, USA
| | - Jeffrey S Ross
- Department of Pathology and Diagnostic Medicine, Medical Team, Foundation Medicine Inc, Cambridge, Massachusetts, USA
| | - Alessandro D Santin
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Division of Gynecologic Oncology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Brian Slomovitz
- Division of Gynecologic Oncology, Mount Sinai Medical Center, Miami Beach, Florida, USA
| | - Julia A Elvin
- Department of Pathology and Diagnostic Medicine, Medical Team, Foundation Medicine Inc, Cambridge, Massachusetts, USA
| | - Ramez N Eskander
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Gynecologic Oncology, University of California San Diego Moores Cancer Center, La Jolla, California, USA
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Vikas P, Messersmith H, Compton C, Sholl L, Broaddus RR, Davis A, Estevez-Diz M, Garje R, Konstantinopoulos PA, Leiser A, Mills AM, Norquist B, Overman MJ, Sohal D, Turkington RC, Johnson T. Mismatch Repair and Microsatellite Instability Testing for Immune Checkpoint Inhibitor Therapy: ASCO Endorsement of College of American Pathologists Guideline. J Clin Oncol 2023; 41:1943-1948. [PMID: 36603179 DOI: 10.1200/jco.22.02462] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
PURPOSE The College of American Pathologists (CAP) has developed a guideline on testing for mismatch repair (MMR) and microsatellite instability (MSI) for patients considered for immune checkpoint inhibitor therapy. ASCO has a policy and set of procedures for endorsing clinical practice guidelines that have been developed by other professional organizations. METHODS The CAP guideline was reviewed for developmental rigor by methodologists. An ASCO Endorsement Panel subsequently reviewed the content and the recommendations. RESULTS The ASCO Endorsement Panel determined that the recommendations from the CAP guideline, published on August 3, 2022, are clear, thorough, and based on the most relevant scientific evidence. ASCO endorses Mismatch Repair and Microsatellite Instability Testing for Immune Checkpoint Inhibitor Therapy: Guideline From the College of American Pathologists in Collaboration With the Association for Molecular Pathology and Fight Colorectal Cancer. RECOMMENDATIONS Within the guideline, MMR immunohistochemistry (IHC), MSI polymerase chain reaction, and MSI next-generation sequencing are all recommended testing options for colorectal cancer, MMR-IHC and MSI-polymerase chain reaction for gastroesophageal and small bowel cancer, and only MMR-IHC for endometrial cancer. No recommendation in favor of any testing method over another could be made for any other cancer. Tumor mutational burden was not recommended as a surrogate for DNA MMR deficiency. If MMR deficiency consistent with Lynch syndrome is detected, it should be communicated to the treating physician.Additional information is available at www.asco.org/molecular-testing-and-biomarkers-guidelines.
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Affiliation(s)
| | | | - Carolyn Compton
- Arizona State University and Mayo Clinic School of Medicine, Scottdale, AZ
| | | | | | | | | | - Rohan Garje
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL
| | | | - Aliza Leiser
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ
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40
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Quintanilha JCF, Graf RP, Fisher VA, Oxnard GR, Ellis H, Panarelli N, Lin DI, Li G, Huang RSP, Ross JS, Myer PA, Klempner SJ. Comparative Effectiveness of Immune Checkpoint Inhibitors vs Chemotherapy in Patients With Metastatic Colorectal Cancer With Measures of Microsatellite Instability, Mismatch Repair, or Tumor Mutational Burden. JAMA Netw Open 2023; 6:e2252244. [PMID: 36689222 PMCID: PMC9871803 DOI: 10.1001/jamanetworkopen.2022.52244] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 12/02/2022] [Indexed: 01/24/2023] Open
Abstract
Importance The KEYNOTE-177 trial demonstrated that patients with metastatic colorectal cancer (MCRC) with high microsatellite instability (MSI-H) and/or mismatch repair deficiency (DMMR) have better outcomes when receiving first-line immune checkpoint inhibitors (ICIs) compared with chemotherapy. Data on performance of ICIs in patients with MCRC in standard practice settings remain limited, and direct MMR vs MSI outcome association comparisons are lacking. Objective To validate MSI (determined by next-generation sequencing [NGS]) as a biomarker of ICI effectiveness among patients with MCRC in standard practice settings and examine the association of MSI assessed by NGS, DMMR by immunohistochemistry, and tumor mutational burden (cutoff, 10 mutations/megabase) with ICI outcomes. Design, Setting, and Participants This comparative effectiveness research study of outcomes in prospectively defined biomarker subgroups used data from a deidentified clinicogenomic database and included patients who received Foundation Medicine testing (FoundationOne or FoundationOne CDx) during routine clinical care at approximately 280 US academic or community-based cancer clinics between March 2014 and December 2021. The population included 1 cohort of patients with MSI-H MCRC who received first-line ICIs or chemotherapy and a second cohort who received ICIs in any line of therapy (LOT) for biomarker examination. Exposures ICI therapy or chemotherapy assigned at physician discretion without randomization. Main Outcomes and Measures The main outcomes were time to next treatment (TTNT), progression-free survival (PFS), and overall survival (OS). Hazard ratios were adjusted for known prognostic imbalances. Comparisons of explanatory power used the likelihood ratio test. Results A total of 138 patients (median age, 67.0 years [IQR, 56.2-74.0 years]; 73 [52.9%] female) with MSI-H MCRC received first-line ICIs or chemotherapy. A total of 182 patients (median age, 64.5 years [IQR, 55.2-72.0]; 98 [53.8%] female) received ICIs in any LOT. Patients receiving first-line ICIs vs chemotherapy had longer TTNT (median, not reached [NR] vs 7.23 months [IQR, 6.21-9.72 months]; adjusted hazard ratio [AHR], 0.17; 95% CI, 0.08-0.35; P < .001), PFS (median, 24.87 months [IQR, 19.10 months to NR] vs 5.65 months [IQR, 4.70-8.34 months]; AHR, 0.31; 95% CI, 0.18-0.52; P < .001), and OS (median, NR vs 24.1 months [IQR, 13.90 months to NR]; HR, 0.45; 95% CI, 0.23-0.88; P = .02). MSI added to DMMR better anticipated TTNT and PFS in patients receiving ICIs than DMMR alone. The same was not observed when DMMR evaluation was added to MSI. Conclusions and Relevance In this comparative effectiveness research study, MSI assessed by NGS robustly identified patients with favorable outcomes on first-line ICIs vs chemotherapy and appeared to better anticipate ICI outcomes compared with DMMR.
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Affiliation(s)
| | | | | | | | - Haley Ellis
- Division of Hematology-Oncology, Department of Medicine, Massachusetts General Hospital, Boston
| | - Nicole Panarelli
- Medicine/Gastroenterology, Montefiore Medical Center, Albert Einstein Cancer Center, New York, New York
| | | | - Gerald Li
- Foundation Medicine, Cambridge, Massachusetts
| | | | - Jeffrey S. Ross
- Foundation Medicine, Cambridge, Massachusetts
- SUNY Upstate Medical University, Syracuse, New York
| | - Parvathi A. Myer
- Medicine/Gastroenterology, Montefiore Medical Center, Albert Einstein Cancer Center, New York, New York
| | - Samuel J. Klempner
- Division of Hematology-Oncology, Department of Medicine, Massachusetts General Hospital, Boston
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41
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Molecular Testing for Diagnostics, Prognostication, and Treatment Stratification in Cancers. Cancer J 2023; 29:3-8. [PMID: 36693151 DOI: 10.1097/ppo.0000000000000643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
ABSTRACT Precision cancer care, for essentially all cancer types, now requires molecular diagnostics to assess mutations, chromosomal alterations, and gene expression to personalize treatments for individual patients. Advances in the diagnostics and treatment options have moved the field forward from fundamental discoveries beginning in the 1960s to the development of many targeted therapies that can be as specific as targeting a single-base-pair mutation. Herein is a brief historical perspective on cancer precision medicine with current diagnostic, prognostic, and treatment stratification guidance for early- and late-stage cancers.
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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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