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Kato T, Tsukamoto S, Miyake M, Kudose Y, Takamizawa Y, Moritani K, Daiko H, Kanemitsu Y. Prognostic impact of extramural venous invasion detected by contrast-enhanced CT colonography in colon cancer. BJS Open 2024; 8:zrad121. [PMID: 38242576 PMCID: PMC10799315 DOI: 10.1093/bjsopen/zrad121] [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: 05/18/2023] [Revised: 08/17/2023] [Accepted: 09/30/2023] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND The impact of computed tomography (CT)-detected extramural venous invasion on the recurrence of colon cancer is not fully understood. The aim of this study was to investigate the clinical significance of extramural venous invasion diagnosed before surgery by contrast-enhanced CT colonography using three-dimensional multiplanar reconstruction images. METHODS Patients with colon cancer staged greater than or equal to T2 and/or stage I-III who underwent contrast-enhanced CT colonography between 2013 and 2018 at the National Cancer Center Hospital in Japan were retrospectively investigated for CT-detected extramural venous invasion. Inter-observer agreement for the detection of CT-detected extramural venous invasion was evaluated and Kaplan-Meier survival curves were plotted for recurrence-free survival using CT-TNM staging and CT-detected extramural venous invasion. Preoperative clinical variables were analysed using Cox regression for recurrence-free survival. RESULTS Out of 922 eligible patients, 544 cases were analysed (50 (9.2 per cent) were diagnosed as positive for CT-detected extramural venous invasion and 494 (90.8 per cent) were diagnosed as negative for CT-detected extramural venous invasion). The inter-observer agreement for CT-detected extramural venous invasion had a κ coefficient of 0.830. The group positive for CT-detected extramural venous invasion had a median follow-up of 62.1 months, whereas the group negative for CT-detected extramural venous invasion had a median follow-up of 60.7 months. When CT-TNM stage was stratified according to CT-detected extramural venous invasion status, CT-T3 N(-)extramural venous invasion(+) had a poor prognosis compared with CT-T3 N(-)extramural venous invasion(-) and CT-stage I (5-year recurrence-free survival of 50.6 versus 89.3 and 90.1 per cent respectively; P < 0.001). In CT-stage III, the group positive for CT-detected extramural venous invasion also had a poor prognosis compared with the group negative for CT-detected extramural venous invasion (5-year recurrence-free survival of 52.0 versus 78.5 per cent respectively; P = 0.003). Multivariable analysis revealed that recurrence was associated with CT-T4 (HR 3.10, 95 per cent c.i. 1.85 to 5.20; P < 0.001) and CT-detected extramural venous invasion (HR 3.08, 95 per cent c.i. 1.90 to 5.00; P < 0.001). CONCLUSION CT-detected extramural venous invasion was found to be an independent predictor of recurrence and could be used in combination with preoperative TNM staging to identify patients at high risk of recurrence.
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Affiliation(s)
- Takeharu Kato
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
- Course of Advanced Clinical Research of Cancer, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shunsuke Tsukamoto
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Mototaka Miyake
- Department of Diagnostic Radiology, National Cancer Center Hospital, Tokyo, Japan
| | - Yozo Kudose
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Yasuyuki Takamizawa
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Konosuke Moritani
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Hiroyuki Daiko
- Course of Advanced Clinical Research of Cancer, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yukihide Kanemitsu
- Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan
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Silva JR, Mascarenhas-Lemos L, Neto do Nascimento C, Sousa Marques D, Wen X, Pinho L, Maio R, Pontes P, Cirnes L, Cravo M, Carneiro F, Gullo I. Role of Endoscopic Biopsies and Morphologic Features in Predicting Microsatellite Instability Status in Gastric Cancer: A Multicenter Comparative Study of Endoscopic Biopsies and Surgical Specimens. Am J Surg Pathol 2023; 47:990-1000. [PMID: 37366224 DOI: 10.1097/pas.0000000000002085] [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: 06/28/2023]
Abstract
Evaluation of mismatch repair (MMR) protein and microsatellite instability (MSI) status plays a pivotal role in the management of gastric cancer (GC) patients. In this study, we aimed to evaluate the accuracy of gastric endoscopic biopsies (EBs) in predicting MMR/MSI status and to uncover histopathologic features associated with MSI. A multicentric series of 140 GCs was collected retrospectively, in which EB and matched surgical specimens (SSs) were available. Laurén and WHO classifications were applied and detailed morphologic characterization was performed. EB/SS were analyzed by immunohistochemistry (IHC) for MMR status and by multiplex polymerase chain reaction (mPCR) for MSI status. IHC allowed accurate evaluation of MMR status in EB (sensitivity: 97.3%; specificity: 98.0%) and high concordance rates between EB and SS (Cohen κ=94.5%). By contrast, mPCR (Idylla MSI Test) showed lower sensitivity in evaluating MSI status (91.3% vs. 97.3%), while maintaining maximal specificity (100.0%). These results suggest a role of IHC as a screening method for MMR status in EB and the use of mPCR as a confirmatory test. Although Laurén/WHO classifications were not able to discriminate GC cases with MSI, we identified specific histopathologic features that are significantly associated with MMR/MSI status in GC, despite the morphologic heterogeneity of GC cases harboring this molecular phenotype. In SS, these features included the presence of mucinous and/or solid components ( P =0.034 and <0.001) and the presence of neutrophil-rich stroma, distant from tumor ulceration/perforation ( P <0.001). In EB, both solid areas and extracellular mucin lakes were also discriminating features for the identification of MSI-high cases ( P =0.002 and 0.045).
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Affiliation(s)
- João R Silva
- Faculty of Medicine of the University of Porto (FMUP)
| | - Luís Mascarenhas-Lemos
- Departments of Pathology
- Faculty of Medicine, Catholic University of Portugal
- NOVA Medical School, Universidade NOVA Lisbon
| | | | | | - Xiaogang Wen
- i3S (Instituto de Investigação e Inovação em Saúde) and Ipatimup (Institute of Molecular Pathology and Immunology of the University of Porto)
- Department of Pathology, Centro Hospitalar Universitário do Porto (CHUP)
| | - Lídia Pinho
- i3S (Instituto de Investigação e Inovação em Saúde) and Ipatimup (Institute of Molecular Pathology and Immunology of the University of Porto)
| | - Rui Maio
- Surgery
- NOVA Medical School, Universidade NOVA Lisbon
| | - Patrícia Pontes
- Department of Pathology, University Hospital Center of São João (CHUSJ)
| | - Luís Cirnes
- i3S (Instituto de Investigação e Inovação em Saúde) and Ipatimup (Institute of Molecular Pathology and Immunology of the University of Porto)
| | - Marília Cravo
- Gastroenterology, Hospital da Luz Lisbon
- Faculty of Medicine, University of Lisbon (FMUL), Lisbon
| | - Fátima Carneiro
- i3S (Instituto de Investigação e Inovação em Saúde) and Ipatimup (Institute of Molecular Pathology and Immunology of the University of Porto)
- Department of Pathology, University Hospital Center of São João (CHUSJ)
- Department of Pathology, FMUP, Porto
| | - Irene Gullo
- i3S (Instituto de Investigação e Inovação em Saúde) and Ipatimup (Institute of Molecular Pathology and Immunology of the University of Porto)
- Department of Pathology, University Hospital Center of São João (CHUSJ)
- Department of Pathology, FMUP, Porto
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3
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Asesio N, Mhamdi Aloui N, Bonnereau J, Lehmann-Che J, Bouhidel F, Kaci R, Corte H, Svrcek M, Minh MLT, Gornet JM, Cattan P, Allez M, Bertheau P, Aparicio T. Assessment of the reliability of MSI status and dMMR proteins deficiency screening on endoscopic biopsy material in esophagus and gastric adenocarcinoma. Dig Liver Dis 2023; 55:1105-1113. [PMID: 37142454 DOI: 10.1016/j.dld.2023.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 04/19/2023] [Indexed: 05/06/2023]
Abstract
BACKGROUND Microsatellite instability (MSI) is a negative predictive factor for neoadjuvant chemotherapy in resectable oesogastric adenocarcinoma and a crucial determinant for immunotherapy. We aimed to evaluate reliability of dMMR/MSI status screening performed on preoperative endoscopic biopsies. METHODS Paired pathological samples from biopsies and surgical specimen of oesogastric adenocarcinoma were retrospectively collected between 2009 and 2019. We compared dMMR status obtained by immunohistochemistry (IHC) and MSI status by PCR. dMMR/MSI status on surgical specimen was considered as reference. RESULTS PCR and IHC were conclusive on biopsies respectively for 53 (96.4%) and 47 (85.5%) of the 55 patients enrolled. IHC was not contributive for 1 surgical specimen. A third reading of IHC was carried out for 3 biopsies. MSI status was observed in 7 (12.5%) surgical specimens. When analyses were contributive, sensitivity and specificity of biopsies for dMMR/MSI were respectively 85% and 98% for PCR vs. 86% and 98% for IHC. Concordance rate between biopsies and surgical specimen was 96.2% for PCR and 97.8% for IHC. CONCLUSIONS Endoscopic biopsies are a suitable source of tissue for dMMR/MSI status determination in oesogastric adenocarcinoma which should be routinely performed at diagnosis to better adapt neoadjuvant treatment. MINIABSTRACT By comparison of dMMR phenotype obtained by immunohistochemistry and MSI status by PCR between match-paired samples of oesogastric cancer's endoscopic biopsies and surgical specimen, we observed that biopsies are a suitable source of tissue for dMMR/MSI status determination.
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Affiliation(s)
- Nicolas Asesio
- Gastro-enterology department, Saint-Louis Hospital, APHP, Université Paris Cité, Paris, France.
| | - Nozha Mhamdi Aloui
- Pathology department, Saint-Louis Hospital, APHP, Université Paris Cité, Paris, France
| | - Julie Bonnereau
- INSERM U1160, Institut de Recherche Saint-Louis, Saint Louis Hospital, Université de Paris Cité, Paris, France
| | - Jacqueline Lehmann-Che
- Molecular oncology department, Saint-Louis Hospital, APHP, Université Paris Cité, Paris, France
| | - Fatiha Bouhidel
- Pathology department, Saint-Louis Hospital, APHP, Université Paris Cité, Paris, France
| | - Rachid Kaci
- Pathology department, Lariboisière Hospital, APHP, Université Paris Cité, Paris, France
| | - Hélène Corte
- Digestive Surgery department, Saint Louis Hospital, APHP, Université Paris Cité, Paris, France
| | - Magali Svrcek
- Pathology department, Saint Antoine Hospital, APHP, Sorbonne Université, Paris, France
| | - My Linh Tran Minh
- Gastro-enterology department, Saint-Louis Hospital, APHP, Université Paris Cité, Paris, France
| | - Jean Marc Gornet
- Gastro-enterology department, Saint-Louis Hospital, APHP, Université Paris Cité, Paris, France
| | - Pierre Cattan
- Digestive Surgery department, Saint Louis Hospital, APHP, Université Paris Cité, Paris, France
| | - Matthieu Allez
- Gastro-enterology department, Saint-Louis Hospital, APHP, Université Paris Cité, Paris, France
| | - Philippe Bertheau
- Pathology department, Saint-Louis Hospital, APHP, Université Paris Cité, Paris, France
| | - Thomas Aparicio
- Gastro-enterology department, Saint-Louis Hospital, APHP, Université Paris Cité, Paris, France
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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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5
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A Canadian Provincial Screening Program for Lynch Syndrome. Am J Gastroenterol 2023; 118:345-353. [PMID: 36219179 DOI: 10.14309/ajg.0000000000002059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 10/06/2022] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Manitoba implemented the first Canadian provincial program of reflex screening through mismatch repair immunohistochemistry (MMR-IHC) for all colorectal cancers diagnosed at age 70 years or younger in December 2017. We evaluated compliance to universal reflex testing and for referrals to Genetics for individuals with MMR-deficient tumors. METHODS We searched the provincial pathology database with "adenocarcinoma" in the colorectal specimen pathology reports between March 2018 and December 2020. We cross-referenced with paper and electronic records in the Program of Genetics and Metabolism to determine whether patients with MMR-deficient tumors had been referred for Genetic assessment and what proportion of patients and first-degree relatives accepted an appointment and genetic testing. We performed logistic regression analysis to identify predictors of testing. RESULTS We identified 3,146 colorectal adenocarcinoma specimens (biopsies and surgical resections) from 1,692 unique individuals (mean age 68.66 years, male 57%). Of those aged 70 years or younger (n = 936), 89.4% received MMR-IHC screening. Individual pathologists (categorized by the highest, average, and lowest screening rates) were the biggest predictors of MMR-IHC screening on multivariable analysis (highest vs lowest: odds ratio 17.5, 95% confidence interval 6.05-50.67). While only 53.4% (n = 31) of 58 screen-positive cases were referred by pathologists for genetic assessment, other clinicians referred an additional 22.4% (n = 13), resulting in 75.8% overall referral rate of screen-positive cases. Thirteen (1.4%) patients (1.1%, aged 70 years or younger) were confirmed to experience Lynch syndrome through germline testing, and 8 first-degree relatives (an average of 1.6 per patient) underwent cascade genetic testing. DISCUSSION The first Canadian Lynch syndrome screening program has achieved high rates of reflex testing.
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Detection of Microsatellite Instability in Colonoscopic Biopsies and Postal Urine Samples from Lynch Syndrome Cancer Patients Using a Multiplex PCR Assay. Cancers (Basel) 2022; 14:cancers14153838. [PMID: 35954501 PMCID: PMC9367254 DOI: 10.3390/cancers14153838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/15/2022] [Accepted: 07/21/2022] [Indexed: 11/16/2022] Open
Abstract
Identification of mismatch repair (MMR)-deficient colorectal cancers (CRCs) is recommended for Lynch syndrome (LS) screening, and supports targeting of immune checkpoint inhibitors. Microsatellite instability (MSI) analysis is commonly used to test for MMR deficiency. Testing biopsies prior to tumour resection can inform surgical and therapeutic decisions, but can be limited by DNA quantity. MSI analysis of voided urine could also provide much needed surveillance for genitourinary tract cancers in LS. Here, we reconfigure an existing molecular inversion probe-based MSI and BRAF c.1799T > A assay to a multiplex PCR (mPCR) format, and demonstrate that it can sample >140 unique molecules per marker from <1 ng of DNA and classify CRCs with 96−100% sensitivity and specificity. We also show that it can detect increased MSI within individual and composite CRC biopsies from LS patients, and within preoperative urine cell free DNA (cfDNA) from two LS patients, one with an upper tract urothelial cancer, the other an undiagnosed endometrial cancer. Approximately 60−70% of the urine cfDNAs were tumour-derived. Our results suggest that mPCR sequence-based analysis of MSI and mutation hotspots in CRC biopsies could facilitate presurgery decision making, and could enable postal-based screening for urinary tract and endometrial tumours in LS patients.
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Elsayed I, Geraghty R, Mekki SO, Mohamedani AA, Ahern S, Salim OEH, Khalil BBM, Abdelrahim S, Suliman SH, Elhassan MMA, Salah SO, Salih ME, Widatalla AH, Abdelhamed OS, Wang X, Ryan ÉJ, Winter D, Bakhiet S, Sheahan K. Evaluating utility and feasibility of mismatch repair testing of colorectal cancer patients in a low-middle-income country. Sci Rep 2022; 12:10998. [PMID: 35768447 PMCID: PMC9243080 DOI: 10.1038/s41598-022-14644-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 06/09/2022] [Indexed: 12/24/2022] Open
Abstract
Molecular pathology services for colorectal cancer (CRC) in Sudan represent a significant unmet clinical need. In a retrospective cohort study involving 50 patients diagnosed with CRC at three major medical settings in Sudan, we aimed to outline the introduction of a molecular genetic service for CRC in Sudan, and to explore the CRC molecular features and their relationship to patient survival and clinicopathological characteristics. Mismatch repair (MMR) and BRAF (V600E) mutation status were determined by immunohistochemistry. A mismatch repair deficient (dMMR) subtype was demonstrated in 16% of cases, and a presumptive Lynch Syndrome (LS) diagnosis was made in up to 14% of patients. dMMR CRC in Sudan is characterized by younger age at diagnosis and a higher incidence of right-sided tumours. We report a high mortality in Sudanese CRC patients, which correlates with advanced disease stage, and MMR status. Routine MMR immunohistochemistry (with sequential BRAF mutation analysis) is a feasible CRC prognostic and predictive molecular biomarker, as well as a screening tool for LS in low-middle-income countries (LMICs).
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Affiliation(s)
- Inas Elsayed
- Biomedical Informatics Research Lab, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.,Cancer Genomics Research Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.,Big Data Research Institute, China Pharmaceutical University, Nanjing, 211198, China.,Department of Pharmacology, Faculty of Pharmacy, University of Gezira, P.O. Box: 20, Wad Madani, Sudan
| | - Robert Geraghty
- Department of Pathology, Centre for Colorectal Disease, St. Vincent's University Hospital, Dublin 4, Ireland
| | - Salwa O Mekki
- Department of Histopathology, Soba University Hospital, Khartoum, Sudan
| | - Ahmed A Mohamedani
- Department of Pathology, Faculty of Medicine, University of Gezira, P.O. Box: 20, Wad Madani, Sudan
| | - Susan Ahern
- Department of Pathology, Centre for Colorectal Disease, St. Vincent's University Hospital, Dublin 4, Ireland
| | - Omer E H Salim
- Department of Surgery, Soba University Hospital, Khartoum, Sudan
| | - Balgis B M Khalil
- Department of Histopathology, Ibn Sina Specialized Hospital, Khartoum, Sudan
| | - Sawsan Abdelrahim
- Department of Histopathology, Soba University Hospital, Khartoum, Sudan
| | | | - Moawia M A Elhassan
- Department of Oncology, National Cancer Institute, University of Gezira, P.O. Box: 20, Wad Madani, Sudan
| | - Salah O Salah
- Department of Oncology, Khartoum Oncology Hospital, Khartoum, Sudan
| | - Mohamed E Salih
- Department of Surgery, Faculty of Medicine, University of Gezira, P.O. Box: 20, Wad Madani, Sudan
| | | | | | - Xiaosheng Wang
- Biomedical Informatics Research Lab, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.,Cancer Genomics Research Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.,Big Data Research Institute, China Pharmaceutical University, Nanjing, 211198, China
| | - Éanna J Ryan
- Department of Surgery, Centre for Colorectal Disease, St. Vincent's University Hospital, Dublin, Ireland
| | - Des Winter
- Department of Surgery, Centre for Colorectal Disease, St. Vincent's University Hospital, Dublin, Ireland.,School of Medicine and Medical Sciences, University College Dublin, Belfield, Dublin 4, Ireland
| | - Salih Bakhiet
- Hull Royal Infirmary, Hull University Hospital NHS Trust, Hull, East Yorkshire, UK
| | - Kieran Sheahan
- Department of Pathology, Centre for Colorectal Disease, St. Vincent's University Hospital, Dublin 4, Ireland. .,School of Medicine and Medical Sciences, University College Dublin, Belfield, Dublin 4, Ireland.
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Crain PR, Zepp JM, Gille S, Jenkins L, Kauffman TL, Shuster E, Goddard KAB, Wilfond BS, Hunter JE. Identifying patients with Lynch syndrome using a universal tumor screening program in an integrated healthcare system. Hered Cancer Clin Pract 2022; 20:17. [PMID: 35436948 PMCID: PMC9014602 DOI: 10.1186/s13053-022-00217-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 03/01/2022] [Indexed: 11/15/2022] Open
Abstract
Introduction Lynch syndrome (LS) is associated with an increased risk of colorectal (CRC) and endometrial (EC) cancers. Universal tumor screening (UTS) of all individuals diagnosed with CRC and EC is recommended to increase identification of LS. Kaiser Permanente Northwest (KPNW) implemented a UTS program for LS among individuals newly diagnosed with CRC in January 2016 and EC in November 2016. UTS at KPNW begins with immunohistochemistry (IHC) of tumor tissue to determine loss of mismatch repair proteins associated with LS (MLH1, MSH2, MSH6, and PMS2)., IHC showing loss of MLH1 is followed by reflex testing (automatic testing) to detect the presence of the BRAF V600E variant (in cases of CRC) and MLH1 promoter hypermethylation to rule out likely sporadic cases. Materials and methods Individuals newly diagnosed with CRC and EC were identified between the initiation of the respective UTS programs and July 2018. Electronic medical records were reviewed to extract patient data related to UTS, including IHC and reflex testing results, date of referrals to the genetics department, and results of germline genetic testing for LS. Results 313 out of 362 individuals diagnosed with CRC and 61 out of 64 individuals diagnosed with EC who were eligible were screened by IHC for LS. Most (47/52 or 90%, including 46/49 CRC and 1/3 EC) individuals that were not screened by IHC only had a biopsy sample available. Fourteen individuals (3.7% overall, including 13/313 CRC and 1/61 EC) received an abnormal result after reflex testing and were referred for genetic counseling. Of these, 10 individuals (71% overall, including 9/13 CRC and 1/1 EC) underwent germline genetic testing for LS. Five individuals diagnosed with CRC were found to have pathogenic variants. in PMS2 (n = 3), MLH1 (n = 1), and MSH6 (n = 1). No pathogenic variants were identified in individuals diagnosed with EC. Conclusions UTS identified individuals at risk for LS. Most individuals who screened positive for LS had follow-up germline genetic testing for LS. The consistent use of biopsy samples is an opportunity to improve UTS.
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Affiliation(s)
- Philip R Crain
- Department of Biostatistics, School of Public Health, University of Washington, Seattle, WA, USA
| | - Jamilyn M Zepp
- Department of Translational and Applied Genomics, Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
| | - Sara Gille
- Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
| | - Lindsay Jenkins
- Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
| | - Tia L Kauffman
- Department of Translational and Applied Genomics, Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
| | - Elizabeth Shuster
- Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
| | - Katrina A B Goddard
- Department of Translational and Applied Genomics, Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
| | - Benjamin S Wilfond
- Treuman Katz Center for Pediatric Bioethics, Department of Pediatrics, Seattle Children's Research Institute and Hospital, University of Washington School of Medicine, Seattle, WA, USA
| | - Jessica Ezzell Hunter
- Department of Translational and Applied Genomics, Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA.
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Jacobi EM, Landon G, Broaddus RR, Roy-Chowdhuri S. Evaluating Mismatch Repair/Microsatellite Instability Status Using Cytology Effusion Specimens to Determine Eligibility for Immunotherapy. Arch Pathol Lab Med 2021; 145:46-54. [PMID: 33367660 PMCID: PMC7529913 DOI: 10.5858/arpa.2019-0398-oa] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2020] [Indexed: 01/28/2023]
Abstract
CONTEXT.— The approval of pembrolizumab for treatment of patients with microsatellite instability-high (MSI-H) or mismatch repair-deficient (dMMR) advanced cancers has led to increased requests for MSI and/or MMR immunoperoxidase (IPOX) testing. Diagnoses for patients with advanced-stage cancer are frequently made from cytology specimens. OBJECTIVE.— To investigate the feasibility of using cell block (CB) preparations of effusions for MMR IPOX evaluation. DESIGN.— Surgical pathology cases of colorectal and endometrial carcinomas with known MMR/MSI status and matched effusions with available CBs were identified. Cell block sections were evaluated for adequacy and stained with MMR IPOX (MSH2, MSH6, MLH1, and PMS2). The CBs were reviewed, the number of tumor cells quantified, and MMR IPOX was interpreted as retained, lost, suboptimal, or noncontributory. RESULTS.— We identified 748 cases with MMR/MSI testing on surgical specimens having matched effusions. Of these, 131 cases (17.5%) had an available CB and 53 were deemed adequate for MMR IPOX staining. MMR IPOX results between effusion CBs and surgical pathology specimens were concordant in 45 of 53 (85%), inconclusive in 6 of 53 (11%), and discordant in 2 of 53 (4%) cases. CONCLUSIONS.— There was high concordance of MMR IPOX testing between cytologic and surgical specimens, with no false-positive and 2 false-negative CB results. Limited tumor cells, staining in cells indefinite as tumor, tumor staining heterogeneity, and lack of internal control staining were problematic in some cases. Our findings indicate that cytologic effusion specimens may be suitable substrates for MMR IPOX biomarker testing; however, inconclusive cases need to be interpreted with caution.
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Affiliation(s)
- Elizabeth M Jacobi
- The Department of Anatomical Pathology, The University of Texas MD Anderson Cancer Center, Houston
- Jacobi is currently in the Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas
| | - Gene Landon
- The Department of Anatomical Pathology, The University of Texas MD Anderson Cancer Center, Houston
| | - Russell R Broaddus
- The Department of Anatomical Pathology, The University of Texas MD Anderson Cancer Center, Houston
- Broaddus is currently in the Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill
| | - Sinchita Roy-Chowdhuri
- The Department of Anatomical Pathology, The University of Texas MD Anderson Cancer Center, Houston
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Is tumor testing efficiency for Lynch syndrome different in rectal and colon cancer? Dig Liver Dis 2020; 52:1503-1511. [PMID: 32620519 DOI: 10.1016/j.dld.2020.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 06/01/2020] [Accepted: 06/02/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Tumor testing utility in Lynch syndrome (LS) diagnosis is established. AIMS Analyze the differences between tumor testing efficiency in rectal (RC) and colon cancer (CC). METHODS We performed immunohistochemistry (IHC) for MisMatch Repair (MMR) proteins (IHC-MMR) and MicroSatellite Instability analysis (MSI) on 482 unselected primary tumors: 320 CCs and 162 RCs. Samples had proficient-IHC, deficient-IHC or borderline-IHC ("patchy" expression). MSI-H borderline-IHC tumors were considered as likely MMR-deficient. Germline testing was offered to MMR-deficient patients without BRAF mutation or MLH1 promoter hypermetilation (MLH1-Hy). RESULTS We identified 51/482 (10.6%) MMR-defective tumors. Multivariable analysis demonstrated a significant correlation between tumor testing results with histotype, lymph-node involvement and tumor location. In particular, RC showed a lower MMR-deficiency rate than CC (p<0.0001). Interestingly, MLH1 loss was detected in 0% RCs and 76.1% CCs, with 80% of them showing BRAF mutation/MLH1-Hy. A germline variant was detected in 12 out of 18 patients (mutation detection rate of 66.7%). CONCLUSION Tumor testing results showed molecular differences between CCs and RCs, in terms of MMR proteins expression, and presence of BRAF mutation/MLH1-Hy. MSH6 variants were the most frequent ones (50%). Although young age at diagnosis was associated with mutation detection (p = 0.045), 33.3% of LS patients were >50 years.
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Harrigan J, Davis C, Chauhan M, Buckles D, Saeed A, Kennedy K, Collins DL, Olyaee M, Madan R, Bansal A. Preoperative Screening of Colorectal Cancers Is As Accurate As Postoperative Screening for Detection of Lynch Syndrome. Clin Gastroenterol Hepatol 2020; 18:2372-2374.e1. [PMID: 32428707 DOI: 10.1016/j.cgh.2020.05.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 02/07/2023]
Abstract
Lynch syndrome (LS) is the most common inherited colorectal cancer (CRC) syndrome with lifetime CRC risks of up to 70%.1 Conventionally, CRC specimens are screened for LS postoperatively but preoperative diagnosis of LS could impact decisions, such as the extent of resection and the need for additional risk-reducing surgeries for uterine and ovarian cancers. Few studies have addressed this issue2-5 and surveys indicate that most gastroenterologists are unsure that LS can be screened for preoperatively.6 We compared the yield of preoperative versus postoperative screening of LS by immunohistochemistry (IHC) and microsatellite instability (MSI) in unselected patients with newly diagnosed CRC who underwent testing under real-life laboratory conditions to mimic clinical practice.
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Affiliation(s)
- Jack Harrigan
- Division of Gastroenterology and Hepatology, University of Kansas Health System, Kansas City, Kansas
| | - Christian Davis
- Division of Gastroenterology and Hepatology, University of Kansas Health System, Kansas City, Kansas
| | - Mahak Chauhan
- Department of Internal Medicine, University of Missouri-Kansas City, Kansas City, Missouri
| | - Daniel Buckles
- Division of Gastroenterology and Hepatology, University of Kansas Health System, Kansas City, Kansas
| | - Anwaar Saeed
- Department of Medical Oncology, University of Kansas Health System, Kansas City, Kansas; University of Kansas Cancer Center, Kansas City, Kansas
| | - Kevin Kennedy
- Division of Gastroenterology and Hepatology, University of Kansas Health System, Kansas City, Kansas
| | | | - Mojtaba Olyaee
- Division of Gastroenterology and Hepatology, University of Kansas Health System, Kansas City, Kansas
| | - Rashna Madan
- University of Kansas Cancer Center, Kansas City, Kansas; Department of Anatomic Pathology and Laboratory Medicine, University of Kansas Health System, Kansas City, Kansas
| | - Ajay Bansal
- Division of Gastroenterology and Hepatology, University of Kansas Health System, Kansas City, Kansas; University of Kansas Cancer Center, Kansas City, Kansas.
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Ryan ÉJ, Creavin B, Sheahan K. Delivery of Personalized Care for Locally Advanced Rectal Cancer: Incorporating Pathological, Molecular Genetic, and Immunological Biomarkers Into the Multimodal Paradigm. Front Oncol 2020; 10:1369. [PMID: 32923389 PMCID: PMC7456909 DOI: 10.3389/fonc.2020.01369] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 06/29/2020] [Indexed: 12/13/2022] Open
Abstract
Approximately one-third of all newly diagnosed colorectal cancer (CRC) is composed of rectal cancer, with the incidence rising in younger patients. The principal neoadjuvant treatments consist of neoadjuvant short-course radiotherapy and long-course chemoradiation. Locally advanced rectal cancer (LARC) is particularly challenging to manage given the anatomical constrictions of the pelvis and the risk for local recurrence. In appropriately treated patients, 5- and 10-year overall survival is estimated at 60 and 50%, respectively. The prognosis for LARC has improved in recent years with more access to screening, advances in surgical techniques, and perioperative care. Furthermore, the refinement of the multidisciplinary team with combined-modality management strategies has improved outcomes. These advancements have been augmented by significant improvements in the understanding of the underlying tumor biology. However, there are many instances where patient outcomes do not match those for their tumor stage and accurate prognostic information for individual patients can be difficult to estimate owing to the heterogeneous nature of LARC. Many new combinations of chemotherapy with radiotherapy, including total neoadjuvant therapy with targeted therapies that aim to diminish toxicity and increase survival, are being evaluated in clinical trials. Despite these advances, local recurrence and distant metastasis remain an issue, with one-third of LARC patients dying within 5 years of initial treatment. Although much of the new pathological, molecular genetics, and immunological biomarkers allow refinement in the classification and prognostication of CRC, the relative importance of each of these factors with regards to the development and progression of LARC remains incompletely understood. These factors are often insufficiently validated and seldom consider the individual characteristics of the host, the tumor and its location, the local available expertise, or the probable location of recurrence. Appreciating the mechanisms behind these differences will allow for a more comprehensive, personalized approach and more informed treatment options, leading to ultimately superior outcomes. This review aims to first outline the current multidisciplinary context in which LARC care should be delivered and then discuss how some key prognosticators, including novel histopathological, molecular genetics, and immunological biomarkers, might fit into the wider context of personalized LARC management in the coming years.
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Affiliation(s)
- Éanna J. Ryan
- School of Medicine, University College Dublin, Dublin, Ireland
- Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ben Creavin
- School of Medicine, University College Dublin, Dublin, Ireland
- Department of Surgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Kieran Sheahan
- School of Medicine, University College Dublin, Dublin, Ireland
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Abrha A, Shukla ND, Hodan R, Longacre T, Raghavan S, Pritchard CC, Fisher G, Ford J, Haraldsdottir S. Universal Screening of Gastrointestinal Malignancies for Mismatch Repair Deficiency at Stanford. JNCI Cancer Spectr 2020; 4:pkaa054. [PMID: 33225206 PMCID: PMC7667994 DOI: 10.1093/jncics/pkaa054] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/19/2020] [Accepted: 06/12/2020] [Indexed: 01/05/2023] Open
Abstract
Background In light of recent Food and Drug Administration (FDA) approval of immune checkpoint inhibitors for mismatch repair deficient (dMMR) malignancies, identifying patients with dMMR malignancies has become increasingly important. Although screening for dMMR in colorectal cancer (CRC) is recommended, it is less common for extracolonic gastrointestinal (GI) malignancies. At Stanford Comprehensive Cancer Institute (SCCI), all GI malignancies have been screened for dMMR via immunohistochemistry since January 2016. Methods In this study, we conducted a retrospective review of all patients with GI malignancies screened for dMMR between January 2016 and December 2017. Tumor sequencing was performed on cases negative for germline pathogenic variants where tumor material was available. Results A total of 1425 consecutive GI malignancies were screened for dMMR at SCCI during the study period, and 1374 were included for analysis. dMMR was detected in 7.2% of all GI malignancies. We detected the highest prevalence of dMMR in gastric (15 of 150, 10.0%) followed by colorectal (63 of 694, 9.1%), pancreatic (13 of 244, 5.3%), and gastroesophageal malignancy (6 of 132, 4.5%) patients. Lynch syndrome was the most common etiology for dMMR in colorectal cancer (41.5%), double somatic (confirmed or possible) pathogenic variants the most common etiology in pancreatic cancer (44.4%), and somatic MLH1 hypermethylation the most common etiology in gastric (73.3%) and gastroesophageal cancer (83.3%). Conclusions Given the relatively high incidence of dMMR in GI malignancies, we recommend screening all GI malignancies. Our results suggest that although a rare occurrence, double somatic pathogenic variants may be a biologically significant pathway causing dMMR in pancreatic cancer.
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Affiliation(s)
- Aser Abrha
- Division of Medical Oncology, Department of Internal Medicine, Stanford University, Stanford, CA, USA
| | | | - Rachel Hodan
- Cancer Genetics and Genomics, Stanford University, Stanford, CA, USA
| | - Teri Longacre
- Department of Pathology, Stanford University, Stanford, CA, USA
| | - Shyam Raghavan
- Department of Pathology, Stanford University, Stanford, CA, USA
| | - Colin C Pritchard
- Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
| | - George Fisher
- Division of Medical Oncology, Department of Internal Medicine, Stanford University, Stanford, CA, USA
| | - James Ford
- Division of Medical Oncology, Department of Internal Medicine, Stanford University, Stanford, CA, USA
| | - Sigurdis Haraldsdottir
- Division of Medical Oncology, Department of Internal Medicine, Stanford University, Stanford, CA, USA
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Saller J, Qin D, Felder S, Coppola D. Microsatellite Stable Colorectal Cancer With an Immunogenic Phenotype: Challenges in Diagnosis and Treatment. Clin Colorectal Cancer 2020; 19:123-131. [PMID: 32171644 DOI: 10.1016/j.clcc.2020.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 02/02/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Patients with deficient microsatellite mismatch repair (dMMR) colorectal cancer (CRC) may respond to immune checkpoint inhibition (ICI), whereas patients with microsatellite-stable (MSS) CRC have not demonstrated response. However, a proportion of MSS tumors display histomorphologic features characteristic of dMMR tumors consistent with an increased antigenicity. Therefore, a subset of patients with CRC not currently receiving ICI treatment may derive benefit from ICI therapy. We review tumors in which the histologic features suggestive of dMMR were in disagreement with the DNA mismatch repair proteins obtained by immunohistochemistry (IHC). Possible causes of such disagreement are discussed. MATERIALS AND METHODS Three patients with CRC suggestive of histomorphologic immunogenicity underwent evaluation by IHC staining for mismatch repair (MMR) status, next-generation sequencing assays, and/or polymerase chain reaction. RESULTS Findings compatible with an immunogenic response were similarly observed in all patients. Case 1 highlighted the limiting factors inherent to IHC staining for MMR status: a biopsy initially interpreted as MSS was subsequently interpreted as being dMMR. Case 2 examined the challenges in reconciling histologic characteristics traditionally associated with dMMR CRCs but ultimately determined to be MSS. Case 3 examined the microsatellite instability of CRC resulting from MLH1-methylation and/or MSH6 mutation. CONCLUSIONS We demonstrated the challenges in establishing MMR status when confronted with conflicting results from histology, IHC, polymerase chain reaction, and next-generation sequencing. Given that dMMR status has been shown to be a biomarker for ICI responsiveness, the importance of accurate identification is critical.
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Affiliation(s)
- James Saller
- Department of Pathology, H. Lee Moffitt Cancer Center and Research Institution, Tampa, FL
| | - Dahui Qin
- Department of Pathology, H. Lee Moffitt Cancer Center and Research Institution, Tampa, FL
| | - Seth Felder
- Department of Gastrointestinal Surgery, H. Lee Moffitt Cancer Center and Research Institution, Tampa, FL
| | - Domenico Coppola
- Department of Pathology, H. Lee Moffitt Cancer Center and Research Institution, Tampa, FL; Florida Digestive Health Specialists, Brandenton, FL.
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Cohen R, Pudlarz T, Garcia-Larnicol ML, Vernerey D, Dray X, Clavel L, Jary M, Piessen G, Zaanan A, Aparicio T, Louvet C, Tournigand C, Chibaudel B, Tougeron D, Guimbaud R, Benouna J, Adenis A, Sokol H, Borg C, Duval A, Svrcek M, André T. [Localized MSI/dMMR gastric cancer patients, perioperative immunotherapy instead of chemotherapy: The GERCOR NEONIPIGA phase II study is opened to recruitment]. Bull Cancer 2020; 107:438-446. [PMID: 32057467 DOI: 10.1016/j.bulcan.2019.11.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/25/2019] [Accepted: 11/29/2019] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Perioperative chemotherapy is the standard strategy for localized gastric cancers. Nevertheless, this strategy seems to be inefficient, if not deleterious, for patients with tumors harboring microsatellite instability (MSI) and/or mismatch repair deficiency (dMMR), a tumor phenotype predictive for the efficacy of immune checkpoint inhibitors (ICKi). AIM The GERCOR NEONIPIGA single-arm phase II study (NCT04006262; EUDRACT 2018-004712-22) aims at evaluating the efficacy of a peri-operative strategy with nivolumab and ipilimumab in neoadjuvant setting, then nivolumab alone after surgery for patients with resectable MSI/dMMR gastric cancer. MATERIAL AND METHODS Main inclusion criteria are: gastric and oesogastric junction adenocarcinoma (GOA), T2-T4, all N stage and M0, MSI/dMMR. Patients will be treated with nivolumab 240mg Q2W, 6 infusions, and ipilimumab 1mg/kg Q6W, 2 infusions in neoadjuvant setting. Following surgery, patients with TRG 1-2-3 (Mandard tumor regression grade), acceptable tolerance of neoadjuvant treatment and postoperative ECOG performance status 0-1, will be treated with adjuvant nivolumab 480mg Q4W, 9 infusions. RESULTS The primary endpoint is pathological complete response rate (pCR-R). Based on a Fleming design, with α=5% and β=20%, 27 patients have to be evaluated (H0=5%; H1=20%). Secondary endpoints include disease-free survival, overall survival and safety. CONCLUSION This study is planned to include 32 patients to evaluate the pCR-R with the combination of nivolumab and ipilimumab in neoadjuvant setting for MSI/dMMR localized GOA. The MSI/MMR status should be systematically assessed on diagnostic biopsies of all GOA. If it meets its primary endpoint, the GERCOR NEONIPIGA study might mark a turning point in the management of localized MSI/dMMR GOA patients.
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Affiliation(s)
- Romain Cohen
- AP-HP, Sorbonne Université, hôpital Saint-Antoine, department of medical oncology, 75012 Paris, France.
| | - Thomas Pudlarz
- AP-HP, hôpital Saint-Antoine, Department of medical oncology, 75012 Paris, France
| | | | - Dewi Vernerey
- University Hospital of Besançon, Methodology and Quality of Life Unit in Oncology, 25000 Besançon, France; University Bourgogne Franche-Comté, interactions Hôte-Greffon-Tumeur/Ingénierie cellulaire et génique, EFS BFC, UMR1098, Inserm, 25000 Besançon, France
| | - Xavier Dray
- AP-HP, Sorbonne Université, hôpital Saint-Antoine, department of endoscopy, 75012 Paris, France
| | - Léa Clavel
- Hôpital privé Jean-Mermoz, gastro-enterology and digestive oncology department, Lyon, France
| | - Marine Jary
- University Bourgogne Franche-Comté, interactions Hôte-Greffon-Tumeur/Ingénierie cellulaire et génique, EFS BFC, UMR1098, Inserm, 25000 Besançon, France; CHU de Jean-Minjoz, Medical oncology department, 3, boulevard Alexander-Fleming, 25000 Besançon, France
| | - Guillaume Piessen
- Hôpital Claude-Huriez, service de chirurgie digestive et oncologique, 59000 Lille, France
| | - Aziz Zaanan
- Paris Descartes University, Sorbonne Paris Cité, Georges-Pompidou European Hospital, Department of Digestive Oncology, Paris, France
| | - Thomas Aparicio
- AP-HP, université de Paris, Hôpital Saint-Louis, Gastro-enterology and digestive oncology department, Paris, France
| | - Christophe Louvet
- Institut mutualiste Montsouris, medical oncology department, 75014 Paris, France
| | | | - Benoist Chibaudel
- Hôpital Franco-Britannique, Fondation Cognacq-Jay, Medical Oncology, Levallois-Perret, France
| | - David Tougeron
- Poitiers University Hospital, Department of Gastroenterology, Poitiers, France
| | - Rosine Guimbaud
- CHU de Toulouse-IUCT Rangueil-Larrey, Digestive Medical Oncology department, Toulouse, France
| | - Jaafar Benouna
- University Hospital of Nantes, Digestive Oncology, Nantes, France
| | - Antoine Adenis
- ICM Val d'Aurelle, medical oncology department, Montpellier, France
| | - Harry Sokol
- AP-HP, Sorbonne Université, Centre de Recherche Saint-Antoine, CRSA, Hôpital Saint-Antoine, gastroenterology department, Inserm, 75012 Paris, France
| | - Christophe Borg
- University Bourgogne Franche-Comté, interactions Hôte-Greffon-Tumeur/Ingénierie cellulaire et génique, EFS BFC, UMR1098, Inserm, 25000 Besançon, France; Hôpital privé Jean-Mermoz, gastro-enterology and digestive oncology department, Lyon, France
| | - Alex Duval
- Sorbonne Université, centre de recherche Saint-Antoine, équipe Instabilité des microsatellites et cancer, équipe labellisée par la Ligue nationale contre le cancer et SIRIC CURAMUS, Inserm UMRS 938, 75012 Paris, France
| | - Magali Svrcek
- AP-HP, Sorbonne Université, hôpital Saint-Antoine, department of pathology, 75012 Paris, France
| | - Thierry André
- AP-HP, Sorbonne Université, hôpital Saint-Antoine, department of medical oncology, 75012 Paris, France
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Walk EE, Yohe SL, Beckman A, Schade A, Zutter MM, Pfeifer J, Berry AB. The Cancer Immunotherapy Biomarker Testing Landscape. Arch Pathol Lab Med 2019; 144:706-724. [PMID: 31714809 DOI: 10.5858/arpa.2018-0584-cp] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Cancer immunotherapy provides unprecedented rates of durable clinical benefit to late-stage cancer patients across many tumor types, but there remains a critical need for biomarkers to accurately predict clinical response. Although some cancer immunotherapy tests are associated with approved therapies and considered validated, other biomarkers are still emerging and at various states of clinical and translational exploration. OBJECTIVE.— To provide pathologists with a current and practical update on the evolving field of cancer immunotherapy testing. The scientific background, clinical data, and testing methodology for the following cancer immunotherapy biomarkers are reviewed: programmed death ligand-1 (PD-L1), mismatch repair, microsatellite instability, tumor mutational burden, polymerase δ and ε mutations, cancer neoantigens, tumor-infiltrating lymphocytes, transcriptional signatures of immune responsiveness, cancer immunotherapy resistance biomarkers, and the microbiome. DATA SOURCES.— Selected scientific publications and clinical trial data representing the current field of cancer immunotherapy. CONCLUSIONS.— The cancer immunotherapy field, including the use of biomarker testing to predict patient response, is still in evolution. PD-L1, mismatch repair, and microsatellite instability testing are helping to guide the use of US Food and Drug Administration-approved therapies, but there remains a need for better predictors of response and resistance. Several categories of tumor and patient characteristics underlying immune responsiveness are emerging and may represent the next generation of cancer immunotherapy predictive biomarkers. Pathologists have important roles and responsibilities as the field of cancer immunotherapy continues to develop, including leadership of translational studies, exploration of novel biomarkers, and the accurate and timely implementation of newly approved and validated companion diagnostics.
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Affiliation(s)
- Eric E Walk
- From the Department of Medical & Scientific Affairs, Roche Tissue Diagnostics, Tucson, Arizona (Dr Walk); the Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis (Drs Yohe and Beckman); Diagnostic and Experimental Pathology, Eli Lilly and Company, Indianapolis, Indiana (Dr Schade); the Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee (Dr Zutter); the Department of Molecular Pathology and Genomics, Swedish Cancer Institute, Seattle, Washington (Dr Berry); and the Department of Pathology, Washington University School of Medicine, St Louis, Missouri (Dr Pfeifer)
| | - Sophia L Yohe
- From the Department of Medical & Scientific Affairs, Roche Tissue Diagnostics, Tucson, Arizona (Dr Walk); the Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis (Drs Yohe and Beckman); Diagnostic and Experimental Pathology, Eli Lilly and Company, Indianapolis, Indiana (Dr Schade); the Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee (Dr Zutter); the Department of Molecular Pathology and Genomics, Swedish Cancer Institute, Seattle, Washington (Dr Berry); and the Department of Pathology, Washington University School of Medicine, St Louis, Missouri (Dr Pfeifer)
| | - Amy Beckman
- From the Department of Medical & Scientific Affairs, Roche Tissue Diagnostics, Tucson, Arizona (Dr Walk); the Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis (Drs Yohe and Beckman); Diagnostic and Experimental Pathology, Eli Lilly and Company, Indianapolis, Indiana (Dr Schade); the Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee (Dr Zutter); the Department of Molecular Pathology and Genomics, Swedish Cancer Institute, Seattle, Washington (Dr Berry); and the Department of Pathology, Washington University School of Medicine, St Louis, Missouri (Dr Pfeifer)
| | - Andrew Schade
- From the Department of Medical & Scientific Affairs, Roche Tissue Diagnostics, Tucson, Arizona (Dr Walk); the Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis (Drs Yohe and Beckman); Diagnostic and Experimental Pathology, Eli Lilly and Company, Indianapolis, Indiana (Dr Schade); the Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee (Dr Zutter); the Department of Molecular Pathology and Genomics, Swedish Cancer Institute, Seattle, Washington (Dr Berry); and the Department of Pathology, Washington University School of Medicine, St Louis, Missouri (Dr Pfeifer)
| | - Mary M Zutter
- From the Department of Medical & Scientific Affairs, Roche Tissue Diagnostics, Tucson, Arizona (Dr Walk); the Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis (Drs Yohe and Beckman); Diagnostic and Experimental Pathology, Eli Lilly and Company, Indianapolis, Indiana (Dr Schade); the Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee (Dr Zutter); the Department of Molecular Pathology and Genomics, Swedish Cancer Institute, Seattle, Washington (Dr Berry); and the Department of Pathology, Washington University School of Medicine, St Louis, Missouri (Dr Pfeifer)
| | - John Pfeifer
- From the Department of Medical & Scientific Affairs, Roche Tissue Diagnostics, Tucson, Arizona (Dr Walk); the Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis (Drs Yohe and Beckman); Diagnostic and Experimental Pathology, Eli Lilly and Company, Indianapolis, Indiana (Dr Schade); the Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee (Dr Zutter); the Department of Molecular Pathology and Genomics, Swedish Cancer Institute, Seattle, Washington (Dr Berry); and the Department of Pathology, Washington University School of Medicine, St Louis, Missouri (Dr Pfeifer)
| | - Anna B Berry
- From the Department of Medical & Scientific Affairs, Roche Tissue Diagnostics, Tucson, Arizona (Dr Walk); the Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis (Drs Yohe and Beckman); Diagnostic and Experimental Pathology, Eli Lilly and Company, Indianapolis, Indiana (Dr Schade); the Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee (Dr Zutter); the Department of Molecular Pathology and Genomics, Swedish Cancer Institute, Seattle, Washington (Dr Berry); and the Department of Pathology, Washington University School of Medicine, St Louis, Missouri (Dr Pfeifer)
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Microsatellite Instability and Programmed Cell Death-Ligand 1 Expression in Stage II/III Gastric Cancer. Ann Surg 2019; 270:309-316. [DOI: 10.1097/sla.0000000000002803] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Cavazza A, Radia C, Harlow C, Monahan KJ. Experience of the implementation and outcomes of universal testing for Lynch syndrome in the United Kingdom. Colorectal Dis 2019; 21:760-766. [PMID: 30815953 DOI: 10.1111/codi.14597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 02/07/2019] [Indexed: 12/12/2022]
Abstract
AIM Colorectal cancer (CRC) is diagnosed in approximately 45 000 people annually in the UK, and it is estimated that Lynch syndrome (LS) accounts for 3.1% of these cases. In February 2017, National Institute for Health and Care Excellence (NICE guideline DG27 recommended universal testing of new cases of CRC for mismatch repair (MMR) status. The aim of this study was to implement universal testing for LS in CRC patients in a secondary care setting. METHOD We prospectively collected data on consecutive newly diagnosed CRC patients at our centre from November 2016 to August 2018, including evidence of MMR status determined by immunohistochemistry. We recorded clinicopathological data including age at diagnosis, stage, tumour site, reported histological findings and MMR tumour status. Statistical analysis was performed using the chi-square test and the two-tailed t-test for binary and continuous variables, respectively. RESULTS A cohort of 203 consecutive patients were diagnosed with CRC during this period. Universal MMR testing was performed for the 198 CRC patients in whom a diagnosis of adenocarcinoma was confirmed, with colonoscopic biopsy used as the source material in 68.6% of cases. Twenty-three CRCs (11.6%) were MMR deficient (dMMR). Most dMMR CRCs (21/23) were early stage tumours (Dukes A or B, P = 0.002). In 39 Dukes B CRCs in patients under 70 years of age, the result of MMR testing influenced decision-making about personalized treatment with 5-fluorouracil based chemotherapy. CONCLUSION Our results demonstrate that universal testing of all new cases of CRC for features suggestive of LS is feasible and effective in the UK. Our data also indicate the importance of genetic testing and personalized oncological care.
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Affiliation(s)
- A Cavazza
- Imperial College London and The Family History of Bowel Cancer Clinic, Department of Gastroenterology, West Middlesex University Hospital, Chelsea and Westminster Hospitals NHS Trust, London, UK
| | - C Radia
- Imperial College London and The Family History of Bowel Cancer Clinic, Department of Gastroenterology, West Middlesex University Hospital, Chelsea and Westminster Hospitals NHS Trust, London, UK
| | - C Harlow
- Imperial College London and The Family History of Bowel Cancer Clinic, Department of Gastroenterology, West Middlesex University Hospital, Chelsea and Westminster Hospitals NHS Trust, London, UK
| | - K J Monahan
- Imperial College London and The Family History of Bowel Cancer Clinic, Department of Gastroenterology, West Middlesex University Hospital, Chelsea and Westminster Hospitals NHS Trust, London, UK
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