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Ochman B, Limanówka P, Mielcarska S, Kula A, Dawidowicz M, Wagner W, Hudy D, Szrot M, Piecuch JZ, Piecuch J, Czuba Z, Świętochowska E. Associations of SEMA7A, SEMA4D, ADAMTS10, and ADAM8 with KRAS, NRAS, BRAF, PIK3CA, and AKT Gene Mutations, Microsatellite Instability Status, and Cytokine Expression in Colorectal Cancer Tissue. Curr Issues Mol Biol 2024; 46:10218-10248. [PMID: 39329961 DOI: 10.3390/cimb46090609] [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: 08/25/2024] [Revised: 09/11/2024] [Accepted: 09/13/2024] [Indexed: 09/28/2024] Open
Abstract
Semaphorins (SEMAs), ADAM, and ADAMTS family members are implicated in various cancer progression events within the tumor microenvironment across different cancers. In this study, we aimed to evaluate the expression of SEMA7A, SEMA4D, ADAM8, and ADAMTS10 in colorectal cancer (CRC) in relation to the mutational landscape of KRAS, NRAS, BRAF, PIK3CA, and AKT genes, microsatellite instability (MSI) status, and clinicopathological features. We also examined the associations between the expression of these proteins and selected cytokines, chemokines, and growth factors, assessed using a multiplex assay. Protein concentrations were quantified using ELISA in CRC tumors and tumor-free surgical margin tissue homogenates. Gene mutations were evaluated via RT-PCR, and MSI status was determined using immunohistochemistry (IHC). GSEA and statistical analyses were performed using R Studio. We observed a significantly elevated expression of SEMA7A in BRAF-mutant CRC tumors and an overexpression of ADAM8 in KRAS 12/13-mutant tumors. The expression of ADAMTS10 was decreased in PIK3CA-mutant CRC tumors. No significant differences in the expression of the examined proteins were observed based on MSI status. The SEMA7A and SEMA4D expressions were correlated with the expression of numerous cytokines associated with various immune processes. The potential immunomodulatory functions of these molecules and their suitability as therapeutic targets require further investigation.
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Affiliation(s)
- Błażej Ochman
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 19 Jordana, 41-808 Zabrze, Poland
| | - Piotr Limanówka
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 19 Jordana, 41-808 Zabrze, Poland
| | - Sylwia Mielcarska
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 19 Jordana, 41-808 Zabrze, Poland
| | - Agnieszka Kula
- Department of Oncological Surgery, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 41-808 Katowice, Poland
| | - Miriam Dawidowicz
- Department of Oncological Surgery, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 41-808 Katowice, Poland
| | - Wiktor Wagner
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 19 Jordana, 41-808 Zabrze, Poland
| | - Dorota Hudy
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 19 Jordana, 41-808 Zabrze, Poland
| | - Monika Szrot
- Department of General and Bariatric Surgery and Emergency Medicine in Zabrze, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 10 Marii Curie-Skłodowskiej, 41-800 Zabrze, Poland
| | - Jerzy Zbigniew Piecuch
- Department of General and Bariatric Surgery and Emergency Medicine in Zabrze, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 10 Marii Curie-Skłodowskiej, 41-800 Zabrze, Poland
| | - Jerzy Piecuch
- Department of General and Bariatric Surgery and Emergency Medicine in Zabrze, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 10 Marii Curie-Skłodowskiej, 41-800 Zabrze, Poland
| | - Zenon Czuba
- Department of Microbiology and Immunology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 19 Jordana, 41-808 Zabrze, Poland
| | - Elżbieta Świętochowska
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 19 Jordana, 41-808 Zabrze, Poland
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2
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Yan L, Shi J, Zhu J. Cellular and molecular events in colorectal cancer: biological mechanisms, cell death pathways, drug resistance and signalling network interactions. Discov Oncol 2024; 15:294. [PMID: 39031216 PMCID: PMC11265098 DOI: 10.1007/s12672-024-01163-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 07/15/2024] [Indexed: 07/22/2024] Open
Abstract
Colorectal cancer (CRC) is a leading cause of cancer-related deaths worldwide, affecting millions each year. It emerges from the colon or rectum, parts of the digestive system, and is closely linked to both genetic and environmental factors. In CRC, genetic mutations such as APC, KRAS, and TP53, along with epigenetic changes like DNA methylation and histone modifications, play crucial roles in tumor development and treatment responses. This paper delves into the complex biological underpinnings of CRC, highlighting the pivotal roles of genetic alterations, cell death pathways, and the intricate network of signaling interactions that contribute to the disease's progression. It explores the dysregulation of apoptosis, autophagy, and other cell death mechanisms, underscoring the aberrant activation of these pathways in CRC. Additionally, the paper examines how mutations in key molecular pathways, including Wnt, EGFR/MAPK, and PI3K, fuel CRC development, and how these alterations can serve as both diagnostic and prognostic markers. The dual function of autophagy in CRC, acting as a tumor suppressor or promoter depending on the context, is also scrutinized. Through a comprehensive analysis of cellular and molecular events, this research aims to deepen our understanding of CRC and pave the way for more effective diagnostics, prognostics, and therapeutic strategies.
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Affiliation(s)
- Lei Yan
- Medical Department, The Central Hospital of Shaoyang Affiliated to University of South China, Shaoyang, China
| | - Jia Shi
- Department of Obstetrics and Gynecology, The Central Hospital of Shaoyang Affiliated to University of South China, Shaoyang, China
| | - Jiazuo Zhu
- Department of Oncology, Xuancheng City Central Hospital, No. 117 Tong Road, Xuancheng, Anhui, China.
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Helderman NC, Andini KD, van Leerdam ME, van Hest LP, Hoekman DR, Ahadova A, Bajwa-Ten Broeke SW, Bosse T, van der Logt EMJ, Imhann F, Kloor M, Langers AMJ, Smit VTHBM, Terlouw D, van Wezel T, Morreau H, Nielsen M. MLH1 Promotor Hypermethylation in Colorectal and Endometrial Carcinomas from Patients with Lynch Syndrome. J Mol Diagn 2024; 26:106-114. [PMID: 38061582 DOI: 10.1016/j.jmoldx.2023.10.005] [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: 04/25/2023] [Revised: 07/19/2023] [Accepted: 10/17/2023] [Indexed: 01/26/2024] Open
Abstract
Screening for Lynch syndrome (LS) in colorectal cancer (CRC) and endometrial cancer patients generally involves immunohistochemical staining of the mismatch repair (MMR) proteins. In case of MLH1 protein loss, MLH1 promotor hypermethylation (MLH1-PM) testing is performed to indirectly distinguish the constitutional MLH1 variants from somatic epimutations. Recently, multiple studies have reported that MLH1-PM and pathogenic constitutional MMR variants are not mutually exclusive. This study describes 6 new and 86 previously reported MLH1-PM CRCs or endometrial cancers in LS patients. Of these, methylation of the MLH1 gene promotor C region was reported in 30 MLH1, 6 MSH2, 6 MSH6, and 3 PMS2 variant carriers at a median age at diagnosis of 48.5 years [interquartile range (IQR), 39-56.75 years], 39 years (IQR, 29-51 years), 58 years (IQR, 53.5-67 years), and 68 years (IQR, 65.6-68.5 years), respectively. For 31 MLH1-PM CRCs in LS patients from the literature, only the B region of the MLH1 gene promotor was tested, whereas for 13 cases in the literature the tested region was not specified. Collectively, these data indicate that a diagnosis of LS should not be excluded when MLH1-PM is detected. Clinicians should carefully consider whether follow-up genetic MMR gene testing should be offered, with age <60 to 70 years and/or a positive family history among other factors being suggestive for a potential constitutional MMR gene defect.
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Affiliation(s)
- Noah C Helderman
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, the Netherlands
| | - Katarina D Andini
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Monique E van Leerdam
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands; Department of Gastrointestinal Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Liselotte P van Hest
- Department of Human Genetics, Amsterdam University Medical Center, Vrije Universiteit Amsterdam and University of Amsterdam, Amsterdam, the Netherlands
| | - Daniël R Hoekman
- Department of Human Genetics, Amsterdam University Medical Center, Vrije Universiteit Amsterdam and University of Amsterdam, Amsterdam, the Netherlands
| | - Aysel Ahadova
- Department of Applied Tumor Biology, Heidelberg University Hospital, Clinical Cooperation Unit Applied Tumor Biology, German Cancer Research Centre, Heidelberg, Germany
| | - Sanne W Bajwa-Ten Broeke
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Tjalling Bosse
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Floris Imhann
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Matthias Kloor
- Department of Applied Tumor Biology, Heidelberg University Hospital, Clinical Cooperation Unit Applied Tumor Biology, German Cancer Research Centre, Heidelberg, Germany
| | - Alexandra M J Langers
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Vincent T H B M Smit
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | - Diantha Terlouw
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, the Netherlands; Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | - Tom van Wezel
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | - Hans Morreau
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | - Maartje Nielsen
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, the Netherlands.
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4
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Trembath HE, Yeh JJ, Lopez NE. Gastrointestinal Malignancy: Genetic Implications to Clinical Applications. Cancer Treat Res 2024; 192:305-418. [PMID: 39212927 DOI: 10.1007/978-3-031-61238-1_15] [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: 09/04/2024]
Abstract
Advances in molecular genetics have revolutionized our understanding of the pathogenesis, progression, and therapeutic options for treating gastrointestinal (GI) cancers. This chapter provides a comprehensive overview of the molecular landscape of GI cancers, focusing on key genetic alterations implicated in tumorigenesis across various anatomical sites including GIST, colon and rectum, and pancreas. Emphasis is placed on critical oncogenic pathways, such as mutations in tumor suppressor genes, oncogenes, chromosomal instability, microsatellite instability, and epigenetic modifications. The role of molecular biomarkers in predicting prognosis, guiding treatment decisions, and monitoring therapeutic response is discussed, highlighting the integration of genomic profiling into clinical practice. Finally, we address the evolving landscape of precision oncology in GI cancers, considering targeted therapies and immunotherapies.
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Affiliation(s)
- Hannah E Trembath
- Division of Colon and Rectal Surgery, Department of Surgery, University of California San Diego, 4303 La Jolla Village Drive Suite 2110, San Diego, CA, 92122, USA
- Division of Surgical Oncology, Department of Surgery, University of North Carolina, 170 Manning Drive, CB#7213, 1150 Physician's Office Building, Chapel Hill, NC, 27599-7213, USA
| | - Jen Jen Yeh
- Division of Colon and Rectal Surgery, Department of Surgery, University of California San Diego, 4303 La Jolla Village Drive Suite 2110, San Diego, CA, 92122, USA
- Division of Surgical Oncology, Department of Surgery, University of North Carolina, 170 Manning Drive, CB#7213, 1150 Physician's Office Building, Chapel Hill, NC, 27599-7213, USA
| | - Nicole E Lopez
- Division of Colon and Rectal Surgery, Department of Surgery, University of California San Diego, 4303 La Jolla Village Drive Suite 2110, San Diego, CA, 92122, USA.
- Division of Surgical Oncology, Department of Surgery, University of North Carolina, 170 Manning Drive, CB#7213, 1150 Physician's Office Building, Chapel Hill, NC, 27599-7213, USA.
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5
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Saberzadeh-Ardestani B, Jones JC, Hubbard JM, McWilliams RR, Halfdanarson TR, Shi Q, Sonbol MB, Ticku J, Jin Z, Sinicrope FA. Association Between Survival and Metastatic Site in Mismatch Repair-Deficient Metastatic Colorectal Cancer Treated With First-line Pembrolizumab. JAMA Netw Open 2023; 6:e230400. [PMID: 36811859 PMCID: PMC9947726 DOI: 10.1001/jamanetworkopen.2023.0400] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/25/2022] [Indexed: 02/24/2023] Open
Abstract
Importance Metastatic colorectal cancer (mCRC) with deficient DNA mismatch repair (dMMR) shows frequent and durable responses to programmed cell death 1 blockade. While most of these tumors are sporadic and observed in older patients, first-line pembrolizumab data are limited to findings from the KEYNOTE-177 trial (A Phase III Study of Pembrolizumab [MK-3475] vs Chemotherapy in Microsatellite Instability-High [MSI-H] or Mismatch Repair Deficient [dMMR] Stage IV Colorectal Carcinoma). Objective To investigate outcome with first-line pembrolizumab monotherapy in mostly older patients with dMMR mCRC at a multisite clinical practice. Design, Setting, and Participants This cohort study included consecutive patients with dMMR mCRC who received pembrolizumab monotherapy between April 1, 2015, and January 1, 2022, at Mayo Clinic sites and the Mayo Clinic Health System. Patients were identified from review of electronic health records at the sites, which included the evaluation of digitized radiologic imaging studies. Intervention Patients with dMMR mCRC received first-line pembrolizumab, 200 mg, every 3 weeks. Main Outcomes and Measures The primary study end point was progression-free survival (PFS), which was analyzed using the Kaplan-Meier method and a multivariable stepwise Cox proportional hazards regression model. Clinicopathological features, including metastatic site and molecular data (BRAF V600E and KRAS), were also analyzed along with tumor response rate, which was determined using Response Evaluation Criteria in Solid Tumors, version 1.1. Results The study cohort included 41 patients (median [IQR] age at treatment initiation, 81 [76-86] years; 29 females [71%]) with dMMR mCRC. Of these patients, 30 (79%) had the BRAF V600E variant and 32 (80%) were classified as having sporadic tumors. Median (range) follow-up was 23 (3-89) months. Median (IQR) number of treatment cycles was 9 (4-20). Overall response rate was 49% (20 of 41 patients), including 13 patients (32%) with complete responses and 7 (17%) with partial responses. Median (IQR) PFS was 21 (95% CI, 6-39) months. Liver as a site of metastasis was associated with significantly poorer PFS vs nonliver metastasis (adjusted hazard ratio, 3.40; 95% CI, 1.27-9.13; adjusted P = .01). Complete and partial responses were observed in 3 patients (21%) with liver metastasis vs 17 patients (63%) with nonliver metastases. Treatment-related grade 3 or 4 adverse events were observed in 8 patients (20%), 2 of whom discontinued therapy; there was 1 treatment-related death. Conclusions and Relevance This cohort study found a clinically significant prolongation of survival in older patients with dMMR mCRC who were treated with first-line pembrolizumab in routine clinical practice. Furthermore, liver vs nonliver metastasis was associated with poorer survival in this patient population, which suggests that the metastatic site has implications for survival outcome.
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Affiliation(s)
| | | | | | | | | | - Qian Shi
- Department of Quantitative Health Science, Mayo Clinic, Rochester, Minnesota
| | | | | | - Zhaohui Jin
- Department of Oncology, Mayo Clinic, Rochester, Minnesota
| | - Frank A. Sinicrope
- Gastrointestinal Research Unit, Mayo Clinic, Rochester, Minnesota
- Department of Oncology, Mayo Clinic, Rochester, Minnesota
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6
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Hua H, He W, Chen N, He Y, Wu G, Ye F, Zhou X, Li Y, Ding Y, Zhong W, Teng L, Jiang W, Sheng Q. Genomic and transcriptomic analysis of MSI-H colorectal cancer patients with targetable alterations identifies clinical implications for immunotherapy. Front Immunol 2023; 13:974793. [PMID: 36700211 PMCID: PMC9870311 DOI: 10.3389/fimmu.2022.974793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 11/03/2022] [Indexed: 01/10/2023] Open
Abstract
Introduction Targetable alterations such as BRAFV600E mutation and NTRK fusion are enriched in microsatellite instability-high (MSI-H) colorectal cancer (CRC). MSI-H with targetable alterations (MSI-H altered) might present unique opportunities for both targeted therapy and immunotherapy. We systematically evaluated the molecular characteristics and immune-related features of MSI-H altered and MSI-H without targetable alterations (MSI-H wt) CRC patients in our study. Methods Among 1938 continuously enrolled CRC patients, 126 patients with MSI-H status (6.50%) were included in this retrospective study. Genomic and transcriptomic data were investigated by next-generation sequencing (NGS) and gene expression profiling (GEP), respectively. Results BRAFV600E, NTRK1, and FGFR2 mutations were the most frequent targetable alterations in MSI-H CRC patients. The MSI-H altered phenotype was significantly associated with older age (p< 0.001), right side (p=0.024) and females (p= 0.036). No lynch syndrome (LS) patients were identified in MSI-H altered group. The tumor mutational burden (TMB), and tumor neoantigen burden (TNB) of MSI-H altered and wt subgroups were comparable (p<0.05). Subsequently, transcriptomic study analysis further revealed MSI-H altered CRC patients were linked to an immune-active tumor microenvironment with higher levels of Teff IFN-gamma, CYT, and MERCK 18 signatures, and lower levels of the IPRES gene signature, EMT and TGF Beta signatures. In addition, case study supported MSI-H CRC patient harboring targetable alterations might also achieved a long-term disease-free survival benefit from immunotherapy. Discussion Our study preliminary revealed MSI-H altered as a novel subtype of MSI-H CRC patients with unique molecular signatures and immune-active tumor microenvironment. Given the accessibility of immune checkpoint inhibitors (ICIs) treatment, our results might provide clinical evidence for immunotherapy in MSI-H CRC patients with targetable alterations.
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Affiliation(s)
- Hanju Hua
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Wenguang He
- Department of Radiology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Nan Chen
- Department of Colorectal Surgery, Yuyao Hospital of Traditional Chinese Medicine, Yuyao, China
| | - Yinjun He
- College of Medicine, Zhejiang University, Hangzhou, China
| | - Guosheng Wu
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Feng Ye
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Xile Zhou
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Yandong Li
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Yongfeng Ding
- Department of Medical Oncology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Weixiang Zhong
- Department of Pathology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Lisong Teng
- Department of Surgical Oncology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China,*Correspondence: Qinsong Sheng, ; Weiqin Jiang, ; Lisong Teng,
| | - Weiqin Jiang
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China,*Correspondence: Qinsong Sheng, ; Weiqin Jiang, ; Lisong Teng,
| | - Qinsong Sheng
- Department of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China,*Correspondence: Qinsong Sheng, ; Weiqin Jiang, ; Lisong Teng,
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Guerrero RM, Labajos VA, Ballena SL, Macha CA, Lezama MS, Roman CP, Beltran PM, Torrejon AF. Targeting BRAF V600E in metastatic colorectal cancer: where are we today? Ecancermedicalscience 2022; 16:1489. [PMID: 36819812 PMCID: PMC9934973 DOI: 10.3332/ecancer.2022.1489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Indexed: 12/23/2022] Open
Abstract
Colorectal cancer (CRC) is the second most frequent cause of direct cancer death worldwide. The study of the molecular state of oncogenes has predictive and prognostic value in metastatic CRC (mCRC). The B-raf proto-oncogene (BRAF) gene mutation represents the 8%-12% of all mutations in mCRC. The BRAF V600E mutation, considered the most common alteration of BRAF, corresponds to a constitutive kinase with a high activating capacity of the RAS/RAF/MEK/ERK pathway after a cascade of successive phosphorylations in the transcription of genes. BRAF V600E mutation is more prevalent in women, elderly, right-sided colon cancer and Caucasian population. Unfortunately, it is considered a poor predictive and prognosis biomarker. Patients with mCRC BRAF V600E mutated (BRAFm) are generally associated with poor response to chemotherapy and short progression-free survival and overall survival. Recently, randomised clinical trials have studied the combination of different chemotherapy regimens with angiogenic inhibitors in mCRC BRAFm. In addition, new anti-BRAF and immunotherapy agents have also been studied in this population, with positive results. The objective of this review is to acknowledge the biology and molecular pathway of BRAF, critically analyse the clinical trials and the therapy options published until today and evaluate the options of treatment according to the patient's clinical presentation.
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Affiliation(s)
- Rodrigo Motta Guerrero
- Instituto Nacional de Enfermedades Neoplásicas, Surquillo 15038, Peru
- https://orcid.org/0000-0002-8086-3513
| | - Veronica Arnao Labajos
- Instituto Nacional de Enfermedades Neoplásicas, Surquillo 15038, Peru
- https://orcid.org/0000-0001-7079-1010
| | - Sophia Lozano Ballena
- Hospital Almanzor Aguinaga Asenjo, Chiclayo 14001, Peru
- https://orcid.org/0000-0002-7868-6802
| | - Carlos Aliaga Macha
- Centro Oncológico ALIADA, San Isidro 15036, Peru
- https://orcid.org/0000-0003-0237-7058
| | - Miguel Sotelo Lezama
- Centro Oncológico ALIADA, San Isidro 15036, Peru
- https://orcid.org/0000-0002-8861-9355
| | - Cristian Pacheco Roman
- Instituto Nacional de Enfermedades Neoplásicas, Surquillo 15038, Peru
- https://orcid.org/0000-0003-2359-5126
| | - Paola Montenegro Beltran
- Instituto Nacional de Enfermedades Neoplásicas, Surquillo 15038, Peru
- https://orcid.org/0000-0002-1484-9537
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8
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Crutcher M, Waldman S. Biomarkers in the development of individualized treatment regimens for colorectal cancer. Front Med (Lausanne) 2022; 9:1062423. [DOI: 10.3389/fmed.2022.1062423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 11/14/2022] [Indexed: 12/05/2022] Open
Abstract
IntroductionColorectal cancer (CRC) is the third most common and second most deadly malignancy in the world with an estimated 1. 9 million cases and 0.9 million deaths in 2020. The 5-year overall survival for stage I disease is 92% compared to a dismal 11% in stage IV disease. At initial presentation, up to 35% of patients have metastatic colorectal cancer (mCRC), and 20–50% of stage II and III patients eventually progress to mCRC. These statistics imply both that there is a proportion of early stage patients who are not receiving adequate treatment and that we are not adequately treating mCRC patients.BodyTargeted therapies directed at CRC biomarkers are now commonly used in select mCRC patients. In addition to acting as direct targets, these biomarkers also could help stratify which patients receive adjuvant therapies and what types. This review discusses the role of RAS, microsatellite instability, HER2, consensus molecular subtypes and ctDNA/CTC in targeted therapy and adjuvant chemotherapy.DiscussionGiven the relatively high recurrence rate in early stage CRC patients as well as the continued poor survival in mCRC patients, additional work needs to be done beyond surgical management to limit recurrence and improve survival. Biomarkers offer both a potential target and a predictive method of stratifying patients to determine those who could benefit from adjuvant treatment.
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Crutcher MM, Snook AE, Waldman SA. Overview of predictive and prognostic biomarkers and their importance in developing a clinical pharmacology treatment plan in colorectal cancer patients. Expert Rev Clin Pharmacol 2022; 15:1317-1326. [PMID: 36259230 PMCID: PMC9847576 DOI: 10.1080/17512433.2022.2138339] [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: 04/19/2022] [Accepted: 10/14/2022] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Colorectal cancer (CRC) is the second most common cause of cancer-related death worldwide. Although overall survival for CRC patients has improved with earlier screening, survival continues to vary substantially across stages. Also, while the introduction of targeted therapies, including VEGF and EGFR inhibitors, has contributed to improving survival, better tools are needed to optimize patient selection and maximize therapeutic benefits. Emerging biomarkers can be used to guide pharmacologic decision-making, as well as monitor treatment response, clarify the need for adjuvant therapies, and indicate early signs of recurrence. This is a narrative review examining the current and evolving use of predictive and prognostic biomarkers in colorectal cancer. AREAS COVERED Areas covered include mutations of the MAPK (KRAS, BRAF) and HER2 pathways and their impacts on treatment decisions. In addition, novel methods for assessing tumor mutations and tracking treatment responses are examined. EXPERT OPINION The standard of care pathway for staging, and treatment selection and surveillance, of CRC will expand to include novel biomarkers in the next 5 years. It is anticipated that these new biomarkers will assist in decision-making regarding selection of targeted therapies and, importantly, in risk stratification for treatment decisions in patients at high risk for recurrence.
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Affiliation(s)
| | - Adam E. Snook
- Departmnet of Pharmacology & Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA 19107
- Department of Microbiology & Immunology, Thomas Jefferson University, Philadelphia, PA 19107
| | - Scott A. Waldman
- Departmnet of Pharmacology & Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA 19107
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10
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Taieb J, Svrcek M, Cohen R, Basile D, Tougeron D, Phelip JM. Deficient mismatch repair/microsatellite unstable colorectal cancer: Diagnosis, prognosis and treatment. Eur J Cancer 2022; 175:136-157. [PMID: 36115290 DOI: 10.1016/j.ejca.2022.07.020] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/08/2022] [Accepted: 07/17/2022] [Indexed: 11/03/2022]
Abstract
Microsatellite unstable (MSI) colorectal cancers (CRCs) are due to DNA mismatch repair (MMR) deficiency and occurs in15% of non-metastatic diseases and 5% in the metastatic setting. Nearly 30% of MSI CRCs occur in a context of constitutional mutation of the MMR system (Lynch syndrome). Others are sporadic cancers linked to a hypermethylation of the MLH-1 promoter. The pathogenic alterations of MMR genes lead to the accumulation of frequent somatic mutational events and these tumours arbour a high antigen burden and are highly infiltrated with cytotoxic T-cell lymphocytes. Microsatellite instability/DNA mismatch repair deficiency (MSI/dMMR) status has prognostic and predictive implications in non-metastatic and metastatic CRCs. The prognostic value of MSI status in non-metastatic CRCs has been studied extensively, yet the data are more limited for its predictive value in terms of adjuvant chemotherapy efficacy. In both cases (metastatic and non-metastatic settings) treatment with immune check-point inhibitors (ICIs) have shown a remarkable effectiveness in the context of MSI/dMMR status. Indeed, recent data from prospective cohorts and randomised trials have shown a dramatical improvement of survival with immunotherapy (programmed death-ligand 1 [PD-(L)1] cytotoxic T-lymphocyte-associated antigen 4 [CTLA-4] blockage) in metastatic or non-metastatic MSI/dMMR CRC. In this review we report and discuss how and for whom to test for the MSI/dMMR phenotype, as well as the prognostic value of this phenotype and the new treatment recommendations options for this unique CRC population. Despite their efficacy, primary and secondary resistance to immune checkpoint inhibitors (ICIs) are observed in more than 50% MSI-H/dMMR CRC patients and in the future how to identify these patients and to overcome resistance will be an important challenge.
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Affiliation(s)
- Julien Taieb
- Université Paris-Cité, Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, SIRIC CARPEM, Paris, France.
| | - Magali Svrcek
- Sorbonne Université, Department of Pathology, Hôpital Saint-Antoine, AP-HP, and INSERM UMRS 938, Équipe Instabilité des Microsatellites et Cancer, Équipe Labellisée par la Ligue Nationale Contre le Cancer et SIRIC CURAMUS, Centre de Recherche Saint Antoine, Paris, France
| | - Romain Cohen
- Sorbonne Université, Department of Medical Oncology, Hôpital Saint-Antoine, AP-HP, and INSERM UMRS 938, Équipe Instabilité des Microsatellites et Cancer, Équipe Labellisée par la Ligue Nationale Contre le Cancer et SIRIC CURAMUS, Centre de Recherche Saint Antoine, Paris, France
| | - Debora Basile
- Department of Medical Oncology, San Giovanni di Dio Hospital, 88900 Crotone, Italy
| | - David Tougeron
- Université de Poitiers, Department of Gastroenterology and Hepatology, Poitiers University Hospital, Poitiers, France
| | - Jean-Marc Phelip
- University Hospital of Saint Etienne, Saint Etienne, France; Unité HESPER EA-7425 Université Jean Monnet/Claude Bernard Lyon 1, France
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11
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Bellone S, Roque DM, Siegel ER, Buza N, Hui P, Bonazzoli E, Guglielmi A, Zammataro L, Nagarkatti N, Zaidi S, Lee J, Silasi DA, Huang GS, Andikyan V, Damast S, Clark M, Azodi M, Schwartz PE, Tymon-Rosario JR, Harold JA, Mauricio D, Zeybek B, Menderes G, Altwerger G, Ratner E, Alexandrov LB, Iwasaki A, Kong Y, Song E, Dong W, Elvin JA, Choi J, Santin AD. A phase 2 evaluation of pembrolizumab for recurrent Lynch-like versus sporadic endometrial cancers with microsatellite instability. Cancer 2022; 128:1206-1218. [PMID: 34875107 PMCID: PMC9465822 DOI: 10.1002/cncr.34025] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/19/2021] [Accepted: 08/10/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Microsatellite instability-high (MSI-H)/mismatch repair deficiency (dMMR) is a biomarker for responses to immune checkpoint inhibitors (ICIs). Whether mechanisms underlying microsatellite instability alter responses to ICIs is unclear. This article reports data from a prospective phase 2 pilot study of pembrolizumab in patients with recurrent MSI-H endometrial cancer (EC) analyzed by whole exome sequencing (WES) and potential mechanisms of primary/secondary ICI resistance (NCT02899793). METHODS Patients with measurable MSI-H/dMMR EC confirmed by polymerase chain reaction/immunohistochemistry were evaluated by WES and received 200 mg of pembrolizumab every 3 weeks for ≤2 years. The primary end point was the objective response rate (ORR). Secondary end points included progression-free survival (PFS) and overall survival (OS). RESULTS Twenty-five patients (24 evaluable) were treated. Six patients (25%) harbored Lynch/Lynch-like tumors, whereas 18 (75%) had sporadic EC. The tumor mutation burden was higher in Lynch-like tumors (median, 2939 mutations/megabase [Mut/Mb]; interquartile range [IQR], 867-5108 Mut/Mb) than sporadic tumors (median, 604 Mut/Mb; IQR, 411-798 Mut/Mb; P = .0076). The ORR was 100% in Lynch/Lynch-like patients but only 44% in sporadic patients (P = .024). The 3-year PFS and OS proportions were 100% versus 30% (P = .017) and 100% versus 43% (P = .043), respectively. CONCLUSIONS This study suggests prognostic significance of Lynch-like cancers versus sporadic MSI-H/dMMR ECs for ORR, PFS, and OS when patients are treated with pembrolizumab. Larger confirmatory studies in ECs and other MSI-H/dMMR tumors are necessary. Defective antigen processing/presentation and deranged induction in interferon responses serve as mechanisms of resistance in sporadic MSI-H ECs. Oligoprogression in MSI-H/dMMR patients appears salvageable with surgical resection and/or local treatment and the continuation of pembrolizumab off study. Clinical studies evaluating separate MSI-H/dMMR EC subtypes treated with ICIs are warranted.
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Affiliation(s)
- Stefania Bellone
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Dana M Roque
- Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland
| | - Eric R Siegel
- Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Natalia Buza
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Pei Hui
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Elena Bonazzoli
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Adele Guglielmi
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Luca Zammataro
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Nupur Nagarkatti
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Samir Zaidi
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jungsoo Lee
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, South Korea
| | - Dan-Arin Silasi
- Division of Gynecologic Oncology, Mercy Clinic, St. Louis, Missouri
| | - Gloria S Huang
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Vaagn Andikyan
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Shari Damast
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Mitchell Clark
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Masoud Azodi
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Peter E Schwartz
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Joan R Tymon-Rosario
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Justin A Harold
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Dennis Mauricio
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Burak Zeybek
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Gulden Menderes
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Gary Altwerger
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Elena Ratner
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Ludmil B Alexandrov
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California
| | - Akiko Iwasaki
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Yong Kong
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Eric Song
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
| | - Weilai Dong
- Laboratory of Human Genetics and Genomics, Rockefeller University, New York, New York
| | - Julia A Elvin
- Cancer Genomics Research, Foundation Medicine, Cambridge, Massachusetts
| | - Jungmin Choi
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, South Korea
| | - Alessandro D Santin
- Smilow Comprehensive Cancer Center, Yale University School of Medicine, New Haven, Connecticut
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12
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Chung C. Predictive and prognostic biomarkers with therapeutic targets in colorectal cancer: A 2021 update on current development, evidence, and recommendation. J Oncol Pharm Pract 2021; 28:850-869. [PMID: 33832365 DOI: 10.1177/10781552211005525] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Although therapeutically actionable molecular alterations are widely distributed across many cancer types, only a handful of them show evidence of clinical utility and are recommended for routine clinical practice in the management of cancers of colon and rectum (CRC). This 2021 update aims to provide a succinct summary on the use of prognostic and/or predictive biomarkers (expanded RAS, BRAF, microsatellite-high [MSI-H] or deficient mismatch repair [dMMR], neurotrophic tyrosine receptor kinase [NTRK] fusion genes, and human epidermal growth factor receptor type II [HER2] gene amplification) associated with CRC. Therapeutic implications of each relevant predictive or prognostic biomarker for patients with CRC are described, along with discussion on new developments on (1) biomarker-driven therapies such as testing of BRAF, MLH1 promoter methylation and MMR germline genes in differentiating sporadic CRC or hereditary conditions such as Lynch syndrome; (2) first-line use of immune checkpoint inhibitors in metastatic CRC; (3) risk stratification and therapy selection based on primary tumor location (left-sided vs. right-sided colon cancer); (3) atypical BRAF mutations; (4) use of EGFR directed therapy in the perioperative oligometastatic disease setting; (5) re-challenge of EGFR directed therapy and (6) personalizing therapy of fluoropyrimidine and irinotecan based on new evidence in pharmacogenomic testing. Data are collected and analyzed from available systematic reviews and meta-analyses of treatments with known therapeutic targets in CRC, which may be associated with predictive and/or prognostic biomarkers. Discussions are presented in an application-based format, with goal to empower pharmacists or other clinicians to gain awareness and understanding in biomarker-driven cancer therapy issues.
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Affiliation(s)
- Clement Chung
- 23530Houston Methodist West Hospital, Houston, TX, USA
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13
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Molecular Mechanisms of Colon Cancer Progression and Metastasis: Recent Insights and Advancements. Int J Mol Sci 2020; 22:ijms22010130. [PMID: 33374459 PMCID: PMC7794761 DOI: 10.3390/ijms22010130] [Citation(s) in RCA: 158] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC), the third most common type of cancer, is the second leading cause of cancer-related mortality rates worldwide. Although modern research was able to shed light on the pathogenesis of CRC and provide enhanced screening strategies, the prevalence of CRC is still on the rise. Studies showed several cellular signaling pathways dysregulated in CRC, leading to the onset of malignant phenotypes. Therefore, analyzing signaling pathways involved in CRC metastasis is necessary to elucidate the underlying mechanism of CRC progression and pharmacotherapy. This review focused on target genes as well as various cellular signaling pathways including Wnt/β-catenin, p53, TGF-β/SMAD, NF-κB, Notch, VEGF, and JAKs/STAT3, which are associated with CRC progression and metastasis. Additionally, alternations in methylation patterns in relation with signaling pathways involved in regulating various cellular mechanisms such as cell cycle, transcription, apoptosis, and angiogenesis as well as invasion and metastasis were also reviewed. To date, understanding the genomic and epigenomic instability has identified candidate biomarkers that are validated for routine clinical use in CRC management. Nevertheless, better understanding of the onset and progression of CRC can aid in the development of early detection molecular markers and risk stratification methods to improve the clinical care of CRC patients.
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14
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Colorectal Cancer Related to Chronic Strongyloides stercoralis Infection. Case Rep Gastrointest Med 2020; 2020:8886460. [PMID: 32963848 PMCID: PMC7492975 DOI: 10.1155/2020/8886460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/30/2020] [Accepted: 08/04/2020] [Indexed: 11/17/2022] Open
Abstract
The majority of individuals with Strongyloides stercoralis (S. stercoralis) colitis are clinically asymptomatic. Symptomatic individuals may complain of nonspecific gastrointestinal symptoms, such as abdominal pain, intermittent or persistent diarrhea, nausea, or loss of appetite. In addition, skin manifestations such as recurrent urticaria can occur. If infection is not diagnosed and left untreated, it can lead to chronic inflammation of the gastrointestinal tract. It is well documented that chronic colitis such as inflammatory bowel disease can predispose individuals to colorectal cancer. Additionally, there is evidence of chronic parasitic infections inducing the development of cancers in other organs within the gastrointestinal tract. In this case vignette, we describe a case of chronic Strongyloides stercoralis infection in a Peruvian woman presenting with colorectal cancer.
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15
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Zaanan A, Henriques J, Cohen R, Sefrioui D, Evrard C, de la Fouchardiere C, Lecomte T, Aparicio T, Svrcek M, Taieb J, André T, Vernerey D, Tougeron D. Efficacy of Anti-EGFR in Microsatellite Instability Metastatic Colorectal Cancer Depending on Sporadic or Familial Origin. J Natl Cancer Inst 2020; 113:496-500. [PMID: 32415973 DOI: 10.1093/jnci/djaa072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/07/2020] [Accepted: 05/12/2020] [Indexed: 02/06/2023] Open
Abstract
Anti-epidermal growth factor receptor (EGFR) efficacy in patients with microsatellite instability (MSI) metastatic colorectal cancer (mCRC) according to sporadic vs familial origin is unknown. We retrospectively analyzed 128 patients with MSI mCRC treated with first-line chemotherapy ± anti-EGFR. Among them, 61 and 67 patients were respectively categorized as familial and sporadic based on mismatch repair protein immunostaining, BRAF mutational status, and MLH1 promoter methylation status. We observed that addition of anti-EGFR to chemotherapy was associated with a statistically significant improvement of progression-free survival for familial (median = 5.0 vs 10.2 months, hazard ratio [HR] = 0.47, 95% confidence interval [CI] = 0.23 to 0.94; P = .03) but not for sporadic (median = 4.4 vs 5.4 months, HR = 0.80, 95% CI = 0.39 to 1.60; P = .52) MSI mCRC patients. In multivariate analysis, the survival benefit of adding anti-EGFR to chemotherapy remained statistically significant for familial MSI cases (P = .04). These findings deserve to be confirmed in a prospective study and could help decision making in MSI mCRC without access or resistant to immunotherapy.
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Affiliation(s)
- Aziz Zaanan
- Department of Gastroenterology and Digestive Oncology, European Georges Pompidou Hospital, AP-HP Centre, Paris, France.,Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, MEPPOT, F-75006 Paris, France
| | - Julie Henriques
- Bourgogne Franche-Comté University, INSERM, Etablissement Français du Sang Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France.,Methodology and Quality of Life Unit in Oncology, University Hospital of Besançon, Besançon, France
| | - Romain Cohen
- Medical Oncology Department, Sorbonne University, Saint-Antoine Hospital, AP-HP, F-75012 Paris, France
| | - David Sefrioui
- Digestive Oncology Unit, Department of Hepatogastroenterology, Rouen University Hospital, Normandie Univ, UNIROUEN, Inserm, 1245, IRON Group, Rouen, France
| | - Camille Evrard
- Medical Oncology Department, Poitiers University Hospital, Poitiers, France
| | | | - Thierry Lecomte
- Department of Hepato-Gastroenterology and Digestive Oncology, Tours University Hospital, EA, 7501 GICC, University of Tours, Tours, France
| | - Thomas Aparicio
- Gastroenterology Department, Saint Louis Hospital, AP-HP, Université de Paris, Paris, France.,Gastroenterology Department, Avicenne Hospital, AP-HP, Bobigny, France
| | - Magali Svrcek
- Sorbonne University, Department of Pathology, Saint-Antoine Hospital, AP-HP, F-75012 Paris, France
| | - Julien Taieb
- Department of Gastroenterology and Digestive Oncology, European Georges Pompidou Hospital, AP-HP Centre, Paris, France.,Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, MEPPOT, F-75006 Paris, France
| | - Thierry André
- Medical Oncology Department, Sorbonne University, Saint-Antoine Hospital, AP-HP, F-75012 Paris, France
| | - Dewi Vernerey
- Bourgogne Franche-Comté University, INSERM, Etablissement Français du Sang Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Besançon, France.,Methodology and Quality of Life Unit in Oncology, University Hospital of Besançon, Besançon, France
| | - David Tougeron
- Gastroenterology Department, Poitiers University Hospital and University of Poitiers, Poitiers, France
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16
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Zaanan A, Shi Q, Taieb J, Alberts SR, Meyers JP, Smyrk TC, Julie C, Zawadi A, Tabernero J, Mini E, Goldberg RM, Folprecht G, Van Laethem JL, Le Malicot K, Sargent DJ, Laurent-Puig P, Sinicrope FA. Clinical Outcomes in Patients With Colon Cancer With Microsatellite Instability of Sporadic or Familial Origin Treated With Adjuvant FOLFOX With or Without Cetuximab: A Pooled Analysis of the PETACC8 and N0147 Trials. JCO Precis Oncol 2020; 4:1900237. [PMID: 32923882 PMCID: PMC7446392 DOI: 10.1200/po.19.00237] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2020] [Indexed: 12/31/2022] Open
Abstract
PURPOSE The microsatellite instability (MSI) or deficient mismatch repair (dMMR) phenotype is usually regarded as a single biologic entity, given the absence of comparative analyses regarding prognosis and response to chemotherapy between sporadic and familial dMMR cancers. PATIENTS AND METHODS Patients with stage III colon cancers were randomly assigned to FOLFOX (leucovorin, fluorouracil, and oxaliplatin) with or without cetuximab in 2 large adjuvant phase III trials (N = 5,577). Among patients with MSI and KRAS exon 2 wild-type (WT) tumors, the prognostic and predictive impacts of sporadic versus familial dMMR cancers and BRAF V600E mutational status were determined. Multivariable Cox proportional hazards models were used to assess disease-free survival (DFS) by treatment arm, adjusting for age, sex, tumor grade, Eastern Cooperative Oncology Group performance status, pT/pN stage, and primary tumor location. RESULTS Among patients with MSI status with complete data for dMMR mechanism analysis (n = 354), 255 (72%) had sporadic (BRAF mutation and/or MLH1 methylation) and 99 (28%) had familial tumors (BRAF WT and unmethylated MLH1 or loss of MSH2/MSH6/PMS2 protein expression). A large proportion of dMMR sporadic tumors were mutated for BRAF (n = 200). In patients treated with FOLFOX, DFS did not differ statistically by dMMR mechanism, whereas in patients treated with FOLFOX plus cetuximab, those with sporadic tumors had worse DFS than those with familial cancers (multivariable hazard ratio, 2.69; 95% CI, 1.02 to 7.08; P = .04). Considering the predictive utility, the interaction between treatment and dMMR mechanism was significant (P = .03). Furthermore, a nonsignificant trend toward a deleterious effect of adding cetuximab to FOLFOX was observed in patients with BRAF-mutant but not BRAF WT tumors. CONCLUSION The addition of cetuximab to adjuvant FOLFOX was associated with shorter DFS in patients with sporadic dMMR colon cancer. Additional studies are needed to validate these results in metastatic disease.
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Affiliation(s)
- Aziz Zaanan
- Department of Medicine, Mayo Clinic,
Rochester, MN,Department of Gastroenterology and
Digestive Oncology, European Georges Pompidou Hospital, Assistance Publique
Hôpitaux de Paris (APHP), Paris, France,Aziz Zaanan, MD, PhD, Department of Gastroenterology and
Digestive Oncology, European Georges Pompidou Hospital, Paris Descartes
University, Paris, France; e-mail:
| | - Qian Shi
- Alliance Statistics and Data Center, Mayo
Clinic, Rochester, MN
| | - Julien Taieb
- Centre de Recherche des Cordeliers,
INSERM, Sorbonne Université, Université Paris Descartes,
Université Paris Diderot, Université Sorbonne Paris Cité,
Paris, France,Department of Gastroenterology and
Digestive Oncology, European Georges Pompidou Hospital, Assistance Publique
Hôpitaux de Paris (APHP), Paris, France
| | | | | | - Thomas C. Smyrk
- Laboratory Medicine and Pathology, Mayo
Clinic, Rochester, MN
| | - Catherine Julie
- Department of Pathology, Ambroise
Paré Hospital, APHP, Boulogne-Billancourt, France,Versailles Saint-Quentin-en-Yvelines
University, Boulogne-Billancourt, France
| | - Ayman Zawadi
- Radiotherapy Unit, Departmental Hospital
Center, La Roche-Sur-Yon, France
| | - Josep Tabernero
- Medical Oncology Department, Vall
d‘Hebron University Hospital, Barcelona, Spain,Vall d‘Hebron Institute of
Oncology, University of Vic, IOB-Quiron, Barcelona, Spain
| | - Enrico Mini
- Section of Clinical Pharmacology and
Oncology, Department of Health Sciences, University of Florence, Florence,
Italy,DENOTHE Excellence Center, University of
Florence, Florence, Italy
| | | | - Gunnar Folprecht
- First Medical Department, University
Hospital Carl Gustav Carus, Dresden, Germany
| | | | - Karine Le Malicot
- Department of Statistics,
Fédération Francophone de Cancérologie Digestive, Dijon,
France
| | | | - Pierre Laurent-Puig
- Centre de Recherche des Cordeliers,
INSERM, Sorbonne Université, Université Paris Descartes,
Université Paris Diderot, Université Sorbonne Paris Cité,
Paris, France,Department of Biology, European Georges
Pompidou Hospital, APHP, Paris, France
| | - Frank A. Sinicrope
- Department of Medicine, Mayo Clinic,
Rochester, MN,Mayo Comprehensive Cancer Center,
Rochester, MN
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17
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Le DM, Ahmed S, Ahmed S, Brunet B, Davies J, Doll C, Ferguson M, Ginther N, Gordon V, Hamilton T, Hebbard P, Helewa R, Kim CA, Lee-Ying R, Lim H, Loree JM, McGhie JP, Mulder K, Park J, Renouf D, Wong RPW, Zaidi A, Asif T. Report from the 20th annual Western Canadian Gastrointestinal Cancer Consensus Conference; Saskatoon, Saskatchewan; 28-29 September 2018. Curr Oncol 2019; 26:e773-e784. [PMID: 31896948 PMCID: PMC6927778 DOI: 10.3747/co.26.5517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The 20th annual Western Canadian Gastrointestinal Cancer Consensus Conference was held in Saskatoon, Saskatchewan, 28-29 September 2018. This interactive multidisciplinary conference is attended by health care professionals from across Western Canada (British Columbia, Alberta, Saskatchewan, and Manitoba) who are involved in the care of patients with gastrointestinal cancers. In addition, invited speakers from other provinces participate. Surgical, medical, and radiation oncologists, and allied health care professionals participated in presentations and discussion sessions for the purpose of developing the recommendations presented here. This consensus statement addresses current issues in the management of colorectal cancers.
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Affiliation(s)
- D M Le
- Saskatoon Cancer Centre, Saskatchewan Cancer Agency, Saskatoon, SK
| | - S Ahmed
- Saskatoon Cancer Centre, Saskatchewan Cancer Agency, Saskatoon, SK
| | - S Ahmed
- CancerCare Manitoba, Winnipeg, MB
| | - B Brunet
- Saskatoon Cancer Centre, Saskatchewan Cancer Agency, Saskatoon, SK
| | | | - C Doll
- Tom Baker Cancer Centre, Alberta Health Services, AB
| | - M Ferguson
- Allan Blair Cancer Centre, Saskatchewan Cancer Agency, Regina, SK
| | - N Ginther
- University of Saskatchewan, Saskatoon, SK
| | - V Gordon
- CancerCare Manitoba, Winnipeg, MB
| | - T Hamilton
- University of British Columbia, Vancouver, BC
| | | | - R Helewa
- University of Manitoba, Winnipeg, MB
| | - C A Kim
- CancerCare Manitoba, Winnipeg, MB
| | - R Lee-Ying
- Tom Baker Cancer Centre, Alberta Health Services, AB
| | | | | | | | - K Mulder
- Cross Cancer Institute, Edmonton, AB
| | - J Park
- CancerCare Manitoba, Winnipeg, MB
| | | | | | - A Zaidi
- Saskatoon Cancer Centre, Saskatchewan Cancer Agency, Saskatoon, SK
| | - T Asif
- Saskatoon Cancer Centre, Saskatchewan Cancer Agency, Saskatoon, SK
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18
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Thomopoulou K, Tzardi M, Mavroudis D, Souglakos I. A Case Presentation of a Patient with Microsatellite Instability and BRAF Mutant Metastatic Colon Cancer and Bibliography Update. Case Rep Oncol Med 2019; 2019:4767019. [PMID: 30911424 PMCID: PMC6398041 DOI: 10.1155/2019/4767019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/16/2019] [Indexed: 01/03/2023] Open
Abstract
This is a case of a patient who presented to the emergency department with acute abdominal pain due to bowel obstruction. An extended right hemicolectomy with ileosigmoid anastomosis due to an obstructing mass on the splenic flexure was urgently performed. During operation, liver and peritoneal lesions were detected and samples were also sent for histological analysis. Pathology report was consistent with poorly differentiated mucinous adenocarcinoma with signet ring cells; peritoneal lesions were confirmed histologically as metastatic. Genetic testing revealed the BRAFV600E mutation and mismatch repair deficiency (dMMR). After progressing on 1st line chemotherapy, the patient has a continuing and long-lasting partial response to 2nd line treatment with pembrolizumab.
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Affiliation(s)
- K. Thomopoulou
- Department of Medical Oncology, University General Hospital of Heraklion, Heraklion, Greece
| | - M. Tzardi
- Laboratory Department of Pathology, Medical School, University of Crete, Greece
| | - D. Mavroudis
- Department of Medical Oncology, University General Hospital of Heraklion, Heraklion, Greece
| | - I. Souglakos
- Department of Medical Oncology, University General Hospital of Heraklion, Heraklion, Greece
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19
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Liu Q, Tan YQ. Advances in Identification of Susceptibility Gene Defects of Hereditary Colorectal Cancer. J Cancer 2019; 10:643-653. [PMID: 30719162 PMCID: PMC6360424 DOI: 10.7150/jca.28542] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 12/08/2018] [Indexed: 12/17/2022] Open
Abstract
Colorectal cancer (CRC) is a common malignant tumor of the digestive system worldwide, associated with hereditary genetic features. CRC with a Mendelian genetic predisposition accounts for approximately 5-10% of total CRC cases, mainly caused by a single germline mutation of a CRC susceptibility gene. The main subtypes of hereditary CRC are hereditary non-polyposis colorectal cancer (HNPCC) and familial adenomatous polyposis (FAP). With the rapid development of genetic testing methods, especially next-generation sequencing technology, multiple genes have now been confirmed to be pathogenic, including DNA repair or DNA mismatch repair genes such as APC, MLH1, and MSH2. Since familial CRC patients have poor clinical outcomes, timely clinical diagnosis and mutation screening of susceptibility genes will aid clinicians in establishing appropriate risk assessment and treatment interventions at a personal level. Here, we systematically summarize the susceptibility genes identified to date and the potential pathogenic mechanism of HNPCC and FAP development. Moreover, clinical recommendations for susceptibility gene screening, diagnosis, and treatment of HNPCC and FAP are discussed.
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Affiliation(s)
- Qiang Liu
- Hunan Key Laboratory of Translational Radiation Oncology, Hunan cancer Hospital and The Affiliated Cancer of Xiangya School of Medicine, Central South University, Changsha, China.,Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Yue-Qiu Tan
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
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Chouhan H, Sammour T, L Thomas M, W Moore J. Prognostic significance of BRAF mutation alone and in combination with microsatellite instability in stage III colon cancer. Asia Pac J Clin Oncol 2018; 15:69-74. [PMID: 30421554 DOI: 10.1111/ajco.13096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 09/09/2018] [Indexed: 11/30/2022]
Abstract
PURPOSE The prognostic significance of biomarkers in colorectal cancer is still being defined. This study aimed to determine the prognostic significance of BRAF mutation alone and in combination with microsatellite instability (MSI), in stage III colon cancer. METHODS Curatively resected stage III colon cancers were studied from a 33-year period. Clinicopathological data were collated (adjuvant chemotherapy, age, gender, obstruction, perforation, tumour location, grade, presence of mucin, nodal stage, extramural vascular, and perineural invasion). MSI status was established and molecular testing for BRAF (V600E) was performed. Four mutation categories were examined: "traditional" (microsatellite stable [MSS]/BRAF -ve), "presumed Lynch" (MSI/BRAF -ve), "sporadic MSI" (MSI/BRAF +ve), and "other BRAF" (MSS/BRAF +ve). These factors were correlated with cancer-specific survival. RESULTS In total, 686 unselected cases met our inclusion criteria, of which 15.7% had a BRAF mutation and 13.8% showed MSI. In the adjusted analysis, neither BRAF mutation nor MSI mutation were independently prognostic. On univariate analysis, survival in presumed Lynch cancers was similar to traditional cancers (5-year survival: 62% and 61%, respectively). While there was no difference in cancer-specific survival between sporadic MSI and other BRAF, both these tumour group had poorer outcome when compared to traditional or presumed Lynch cancers. Adjusted analysis of the four groups, however, showed that none of the subgroups were independently prognostic. CONCLUSION BRAF-mutated cancers demonstrated a trend toward poorer outcomes, however, when adjusted for clinicopathological factors and chemotherapy, BRAF mutation was not found to be an independent prognostic biomarker in stage III colon cancer, even when combined with MSI.
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Affiliation(s)
- Hanumant Chouhan
- Department of Colorectal Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Tarik Sammour
- Department of Colorectal Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Michelle L Thomas
- Department of Colorectal Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - James W Moore
- Department of Colorectal Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
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21
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Abstract
Examination of the rectum by pathologists is instrumental in the management of patients affected by rectal carcinoma. That role includes evaluation of multiple gross and microscopic features that convey prognostic implications. The analysis is based on the authors' experience handling rectal specimens along with review of the pertinent literature in these areas: margins of excision, quality of the mesorectum, diligence and techniques to sample lymph nodes, tumor budding, grading of residual amount of carcinoma after preoperative therapy, vascular/perineural invasion, and staging the tumor. Pathologists must communicate the findings in a clear manner. Evaluation of margins and completeness of mesorectum are markers of the quality of surgical excision. The number of lymph nodes obtained and examined is dependent in great part on the diligence of the pathologist finding them in the mesenteric adipose tissue. There are grades for budding and response to prior chemoradiation therapy. The location of vascular invasion (extramural vs. intramural) may predict aggressive behavior. Pathologists proactively are to choose sections of tumor for molecular testing. Meticulous macro- and microscopic evaluation of specimens for rectal carcinoma by pathologist is needed to determine an accurate assessment of staging and other prognostic factors. The modern pathologists play a pivotal part in the care and management of patients suffering from rectal adenocarcinoma. That role goes from the initial histological diagnosis to the gross and microscopic examination of the excised specimens. Based on that examination pathologists issue statements that not only evaluate the quality of the surgical procedure, but also through the application of molecular tests they give light on prognostic factors and information for therapeutic purposes.
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Affiliation(s)
- Mariana Berho
- Department of Pathology, Cleveland Clinic Florida, Weston, FL, USA -
| | - Pablo A Bejarano
- Department of Pathology, Cleveland Clinic Florida, Weston, FL, USA
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22
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Symvoulakis EK, Zaravinos A, Panutsopulos D, Zoras O, Papalambros E, Sigala F, Spandidos DA. Highly Conserved Sequence of Exon 15 BRAF Gene and KRAS Codon 12 Mutation among Greek Patients with Colorectal Cancer. Int J Biol Markers 2018; 22:12-8. [PMID: 17393356 DOI: 10.1177/172460080702200102] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background The RAS/RAF/MEK/MAP kinase pathway is essential to intracellular signaling transduction regulating cell proliferation, differentiation and death. We investigated the occurrence of exon 15 BRAF and KRAS codon 12 mutations among Greek patients with colorectal cancer. Methods Sixty-one samples from patients with sporadic colorectal adenocarcinomas were studied for exon 15 BRAF mutations. DNA from surgically resected specimens was analyzed by a combination of polymerase chain reaction and direct sequencing. KRAS codon 12 mutational analysis was technically possible in 58 samples (58/61) by a combination of polymerase chain reaction and restriction fragment length polymorphism. Results No exon 15 BRAF mutations were detected in any of the colon cancer specimens. The frequency of KRAS codon 12 mutations was 29.3% (17/58). Patients aged <70 years more frequently presented carcinomas harboring KRAS codon 12 mutations than patients aged >70 years (p=0.028). Patients between 61 and 70 years of age were more likely to be carriers of this mutation (p=0.040). Conclusions Despite the limited study sample, our data suggest that BRAF mutations might be present less frequently than KRAS mutations in Greek patients with colorectal carcinomas. Further research involving larger patient series will be necessary to confirm these findings and to assess possible ethnic, environmental and lifestyle influences on BRAF and KRAS mutagenesis.
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Affiliation(s)
- E K Symvoulakis
- Laboratory of Virology, Medical School, University of Crete, Heraklion, Crete, Greece
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PD-L1 expression in HNPCC-associated colorectal cancer. Pathol Res Pract 2017; 213:1552-1555. [PMID: 29033182 DOI: 10.1016/j.prp.2017.09.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 09/13/2017] [Accepted: 09/14/2017] [Indexed: 11/21/2022]
Abstract
BACKGROUND PD-L1 immunohistochemistry is predictive for molecular inhibitors of PD-1/PD-L1 immune checkpoint. Therefore, this study evaluated the PD-L1 expression in patients with Hereditary Non-Polyposis Colorectal Cancer (HNPCC). METHODS Immunohistochemical expression of PD-L1 in carcinoma cells, stromal macrophages and lymphocytes of 40 HNPCC-patients with colorectal cancer was scored semi-quantitatively. RESULTS Focal (2 cases) to extensive (2 cases) PD-L1-immunopositivity of carcinoma cells was detected in 4 out of 40 cases (10.0%). Stromal macrophages were immunopositive in 28 out of 40 cases (70.0%). Lymphocytes showed PD-L1 expression in 3 out of 40 cases (7.5%). Simultaneous immunopositivity of stromal macrophages and tumor cells was detected in two MLH1/PMS2-deficient and two MSH2/MSH6-deficient cases. CONCLUSION A subset of HNPCC-associated colorectal cancers in this study clearly showed PD-L1 expression of tumor epithelia and immune cells, therefore, the detection of PD-L1 status is useful.
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24
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Overman MJ, McDermott R, Leach JL, Lonardi S, Lenz HJ, Morse MA, Desai J, Hill A, Axelson M, Moss RA, Goldberg MV, Cao ZA, Ledeine JM, Maglinte GA, Kopetz S, André T. Nivolumab in patients with metastatic DNA mismatch repair-deficient or microsatellite instability-high colorectal cancer (CheckMate 142): an open-label, multicentre, phase 2 study. Lancet Oncol 2017; 18:1182-1191. [PMID: 28734759 PMCID: PMC6207072 DOI: 10.1016/s1470-2045(17)30422-9] [Citation(s) in RCA: 1909] [Impact Index Per Article: 272.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/12/2017] [Accepted: 05/19/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Metastatic DNA mismatch repair-deficient (dMMR)/microsatellite instability-high (MSI-H) colorectal cancer has a poor prognosis after treatment with conventional chemotherapy and exhibits high levels of tumour neoantigens, tumour-infiltrating lymphocytes, and checkpoint regulators. All of these features are associated with the response to PD-1 blockade in other tumour types. Therefore, we aimed to study nivolumab, a PD-1 immune checkpoint inhibitor, in patients with dMMR/MSI-H metastatic colorectal cancer. METHODS In this ongoing, multicentre, open-label, phase 2 trial, we enrolled adults (aged ≥18 years) with histologically confirmed recurrent or metastatic colorectal cancer locally assessed as dMMR/MSI-H from 31 sites (academic centres and hospitals) in eight countries (Australia, Belgium, Canada, France, Ireland, Italy, Spain, and the USA). Eligible patients had progressed on or after, or been intolerant of, at least one previous line of treatment, including a fluoropyrimidine and oxaliplatin or irinotecan. Patients were given 3 mg/kg nivolumab every 2 weeks until disease progression, death, unacceptable toxic effects, or withdrawal from study. The primary endpoint was investigator-assessed objective response as per Response Evaluation Criteria in Solid Tumors (version 1.1). All patients who received at least one dose of study drug were included in all analyses. This trial is registered with ClinicalTrials.gov, number NCT02060188. FINDINGS Of the 74 patients who were enrolled between March 12, 2014, and March 16, 2016, 40 (54%) had received three or more previous treatments. At a median follow-up of 12·0 months (IQR 8·6-18·0), 23 (31·1%, 95% CI 20·8-42·9) of 74 patients achieved an investigator-assessed objective response and 51 (69%, 57-79) patients had disease control for 12 weeks or longer. Median duration of response was not yet reached; all responders were alive, and eight had responses lasting 12 months or longer (Kaplan-Meier 12-month estimate 86%, 95% CI 62-95). The most common grade 3 or 4 drug-related adverse events were increased concentrations of lipase (six [8%]) and amylase (two [3%]). 23 (31%) patients died during the study; none of these deaths were deemed to be treatment related by the investigator. INTERPRETATION Nivolumab provided durable responses and disease control in pre-treated patients with dMMR/MSI-H metastatic colorectal cancer, and could be a new treatment option for these patients. FUNDING Bristol-Myers Squibb.
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Affiliation(s)
- Michael J Overman
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Ray McDermott
- St Vincent's University Hospital and Cancer Trials Ireland, Dublin, Ireland
| | | | - Sara Lonardi
- Istituto Oncologico Veneto IOV-IRCSS, Padova, Italy
| | | | | | - Jayesh Desai
- Royal Melbourne Hospital/Peter MacCallum Cancer Centre, Victoria, VIC, Australia
| | - Andrew Hill
- Tasman Oncology Research Ltd, Southport, Queensland, QLD, Australia
| | | | | | | | | | | | | | - Scott Kopetz
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Thierry André
- Hôpital Saint Antoine, Assistance Publique Hôpitaux de Paris and Sorbonne Universités, UMPC Paris 06, Paris, France
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Loree JM, Kopetz S. Recent developments in the treatment of metastatic colorectal cancer. Ther Adv Med Oncol 2017; 9:551-564. [PMID: 28794806 PMCID: PMC5524248 DOI: 10.1177/1758834017714997] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 05/23/2017] [Indexed: 12/11/2022] Open
Abstract
Over the past decade there have been significant advances in the molecular characterization of colorectal cancer (CRC) that are driving treatment decisions. Expanded RAS testing beyond KRAS exon 2 was established as crucial for identifying patients who will respond to anti-epidermal growth factor receptor (EGFR) therapies and low-frequency mutations in RAS/tumor heterogeneity are gaining recognition as potential mechanisms of resistance. Despite this progress, the fact that we do not understand why left-sided but not right-sided tumors have improved outcomes following anti-EGFR therapy highlights our superficial understanding of this disease. Even with few new targeted agents receiving approval in CRC, the incorporation of next-generation sequencing into clinical decision making represents an important step forward. Biomarkers such as BRAF mutations, microsatellite instability, and HER2 amplification represent promising molecular aberrations with therapies in various stages of development, and highlight the importance of companion diagnostics in supporting targeted agents. In this review, we will discuss the importance of incorporating biomarkers into clinical decision making and regimen selection in CRC. We will particularly focus on the recent evidence suggesting an important role for tumor location in selecting first-line therapy, the importance of recent advances in biomarker development and molecular subtyping, as well as recently approved agents (regorafenib and TAS-102) and promising targeted agents that have the potential to change the standard of care.
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Affiliation(s)
- Jonathan M. Loree
- Division of Gastrointestinal Medical Oncology, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Scott Kopetz
- Division of Gastrointestinal Medical Oncology, The University of Texas, MD Anderson Cancer Center, Unit 426, 1515 Holcombe Blvd, Houston, TX 77030, USA
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Mucinous Differentiation With Tumor Infiltrating Lymphocytes Is a Feature of Sporadically Methylated Endometrial Carcinomas. Int J Gynecol Pathol 2017; 36:205-216. [DOI: 10.1097/pgp.0000000000000315] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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27
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Rashtak S, Rego R, Sweetser SR, Sinicrope FA. Sessile Serrated Polyps and Colon Cancer Prevention. Cancer Prev Res (Phila) 2017; 10:270-278. [PMID: 28325827 DOI: 10.1158/1940-6207.capr-16-0264] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/21/2016] [Accepted: 03/15/2017] [Indexed: 11/16/2022]
Abstract
Evidence suggests that up to one fifth of colorectal carcinomas develop from serrated polyps, named for their pattern of colonic crypts, and include the sessile serrated adenoma/polyp (SSA/P) that has malignant potential. SSA/Ps are typically located in the proximal colon and have molecular features of hypermethylation of CpG islands in gene promoters and activating point mutations (V600E) in the BRAF oncogene. Both of these features are seen in sporadic colorectal carcinomas with microsatellite instability (MSI) which is potentially consistent with an origin of these cancers from precursor SSA/Ps. Dysplasia is detected in a subset of SSA/Ps with a high risk of progression to carcinoma. An uncommon serrated polyp is the traditional serrated adenoma that is typically found in the left colon, has a tubulovillous architecture, and frequently harbors mutant KRAS To date, the epidemiology of these serrated lesions is poorly understood, and limited observational data suggest a potential chemopreventive benefit of nonsteroidal anti-inflammatory drugs. The current primary strategy to reduce the risk of colorectal carcinoma from serrated polyps is to enhance their detection at colonoscopy and to ensure their complete removal. This review provides insight into the epidemiologic, clinical, histopathologic, and molecular features of serrated polyps and includes data on their endoscopic detection and chemoprevention. Cancer Prev Res; 10(5); 270-8. ©2017 AACR.
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Affiliation(s)
- Shahrooz Rashtak
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Rafaela Rego
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota.,Department of Pathology, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
| | - Seth R Sweetser
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Frank A Sinicrope
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota. .,Department of Oncology, Mayo Clinic, Rochester, Minnesota
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Abstract
In the last 20 years, improvements in metastatic colorectal cancer treatment lead to a radical raise of outcomes with median survival reaching now more than 30 months. Despite that, the identification of predictive and/or prognostic biomarker still represents a challenging issue, and until today, although clinician and researchers might face with a deeper knowledge of biological mechanisms related to colorectal cancer, many pieces of evidence underline the heterogeneity and the dynamism of such disease. In the present review, we describe the road leading to the discovery of RAS mutations, BRAF V600E mutation, and microsatellite instability role in colorectal cancer; second, we discuss some of the possible major pitfalls of biomarker research, and lastly, we give new suggestions for future research in this field.
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Zhang CM, Lv JF, Gong L, Yu LY, Chen XP, Zhou HH, Fan L. Role of Deficient Mismatch Repair in the Personalized Management of Colorectal Cancer. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13090892. [PMID: 27618077 PMCID: PMC5036725 DOI: 10.3390/ijerph13090892] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 09/01/2016] [Accepted: 09/05/2016] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) represents the third most common type of cancer in developed countries and one of the leading causes of cancer deaths worldwide. Personalized management of CRC has gained increasing attention since there are large inter-individual variations in the prognosis and response to drugs used to treat CRC owing to molecular heterogeneity. Approximately 15% of CRCs are caused by deficient mismatch repair (dMMR) characterized by microsatellite instability (MSI) phenotype. The present review is aimed at highlighting the role of MMR status in informing prognosis and personalized treatment of CRC including adjuvant chemotherapy, targeted therapy, and immune checkpoint inhibitor therapy to guide the individualized therapy of CRC.
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Affiliation(s)
- Cong-Min Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China.
| | - Jin-Feng Lv
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Hospital Pharmacy, Central South University, Changsha 410008, China.
| | - Liang Gong
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China.
| | - Lin-Yu Yu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China.
| | - Xiao-Ping Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China.
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China.
| | - Lan Fan
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China.
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30
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Cohen SA, Turner EH, Beightol MB, Jacobson A, Gooley TA, Salipante SJ, Haraldsdottir S, Smith C, Scroggins S, Tait JF, Grady WM, Lin EH, Cohn DE, Goodfellow PJ, Arnold MW, de la Chapelle A, Pearlman R, Hampel H, Pritchard CC. Frequent PIK3CA Mutations in Colorectal and Endometrial Tumors With 2 or More Somatic Mutations in Mismatch Repair Genes. Gastroenterology 2016; 151:440-447.e1. [PMID: 27302833 PMCID: PMC5016834 DOI: 10.1053/j.gastro.2016.06.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 06/02/2016] [Accepted: 06/07/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Some colorectal and endometrial tumors with microsatellite instability not attributable to MLH1 hypermethylation or germline mutations contain 2 or more somatic mutations in genes encoding mismatch repair (MMR) proteins. We sought to define the molecular phenotype of this newly recognized tumor subtype. METHODS From 2 prospective studies of the efficacy of screening for Lynch syndrome, we identified patients with colorectal and endometrial tumors who had 2 or more somatic (but not germline) mutations in genes encoding MMR proteins (double somatic). We determined the frequencies of tumor mutations in PIK3CA, BRAF, KRAS, NRAS, and PTEN by targeted next-generation sequencing and used logistic-regression models to compare them with those from patients with Lynch syndrome, MLH1-hypermethylated, or microsatellite-stable tumors. We validated our findings using independent data sets from The Cancer Genome Atlas. RESULTS Among colorectal cancer cases, we found that 14 of 21 (67%) patients with double somatic tumors also had PIK3CA mutations, compared with 4 of 18 (22%) tumors from patients with Lynch syndrome, 2 of 10 (20%) tumors with MLH1 hypermethylation, and 12 of 78 (15%) tumors with microsatellite stability (P < .0001 for patients with double somatic tumors vs other subgroups). Mutations in PIK3CA were detected in all 13 patients with double somatic endometrial cancers (P = .04 compared with other subgroups). We did not detect BRAF mutations in patients with double somatic colorectal tumors or Lynch syndrome. We found highly similar results in a validation cohort from The Cancer Genome Atlas (113 patients with colorectal tumors, 178 endometrial tumors); 100% of double somatic cases had a somatic mutation in PIK3CA (P < .0001 compared with other subgroups). CONCLUSIONS Most patients with colorectal or endometrial tumors with 2 or more somatic (but not germline) mutations in MMR proteins also have mutations in PIK3CA; mutations in PIK3CA are detected at substantially higher frequencies in these double somatic tumors than in other microsatellite-instability subgroups. PIK3CA mutation status might be used to identify a specific group of colorectal tumors, and to select treatment or determine prognosis.
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Affiliation(s)
- Stacey A Cohen
- Department of Medicine, Division of Medical Oncology, University of Washington, Seattle, Washington; Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, Washington
| | - Emily H Turner
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Mallory B Beightol
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Angela Jacobson
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Ted A Gooley
- Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, Washington
| | - Stephen J Salipante
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Sigurdis Haraldsdottir
- Division of Medical Oncology, Department of Medicine, Stanford University, Stanford, California
| | - Christina Smith
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Sheena Scroggins
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Jonathan F Tait
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - William M Grady
- Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, Washington; Division of Gastroenterology, University of Washington, Seattle, Washington
| | - Edward H Lin
- Department of Medicine, Division of Medical Oncology, University of Washington, Seattle, Washington; Fred Hutchinson Cancer Research Center, Clinical Research Division, Seattle, Washington
| | - David E Cohn
- Division of Gynecologic Oncology, The Ohio State University, Columbus, Ohio
| | - Paul J Goodfellow
- Division of Gynecologic Oncology, The Ohio State University, Columbus, Ohio
| | - Mark W Arnold
- Department of Surgery, The Ohio State University College of Medicine, Columbus, Ohio
| | - Albert de la Chapelle
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, Ohio
| | - Rachel Pearlman
- Division of Human Genetics, Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Heather Hampel
- Division of Human Genetics, Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Colin C Pritchard
- Department of Laboratory Medicine, University of Washington, Seattle, Washington.
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Van Cutsem E, Cervantes A, Adam R, Sobrero A, Van Krieken JH, Aderka D, Aranda Aguilar E, Bardelli A, Benson A, Bodoky G, Ciardiello F, D'Hoore A, Diaz-Rubio E, Douillard JY, Ducreux M, Falcone A, Grothey A, Gruenberger T, Haustermans K, Heinemann V, Hoff P, Köhne CH, Labianca R, Laurent-Puig P, Ma B, Maughan T, Muro K, Normanno N, Österlund P, Oyen WJG, Papamichael D, Pentheroudakis G, Pfeiffer P, Price TJ, Punt C, Ricke J, Roth A, Salazar R, Scheithauer W, Schmoll HJ, Tabernero J, Taïeb J, Tejpar S, Wasan H, Yoshino T, Zaanan A, Arnold D. ESMO consensus guidelines for the management of patients with metastatic colorectal cancer. Ann Oncol 2016; 27:1386-422. [PMID: 27380959 DOI: 10.1093/annonc/mdw235] [Citation(s) in RCA: 2240] [Impact Index Per Article: 280.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 05/31/2016] [Indexed: 02/11/2024] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignancies in Western countries. Over the last 20 years, and the last decade in particular, the clinical outcome for patients with metastatic CRC (mCRC) has improved greatly due not only to an increase in the number of patients being referred for and undergoing surgical resection of their localised metastatic disease but also to a more strategic approach to the delivery of systemic therapy and an expansion in the use of ablative techniques. This reflects the increase in the number of patients that are being managed within a multidisciplinary team environment and specialist cancer centres, and the emergence over the same time period not only of improved imaging techniques but also prognostic and predictive molecular markers. Treatment decisions for patients with mCRC must be evidence-based. Thus, these ESMO consensus guidelines have been developed based on the current available evidence to provide a series of evidence-based recommendations to assist in the treatment and management of patients with mCRC in this rapidly evolving treatment setting.
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Affiliation(s)
- E Van Cutsem
- Digestive Oncology, University Hospitals Gasthuisberg Leuven and KU Leuven, Leuven, Belgium
| | - A Cervantes
- Medical Oncology Department, INCLIVA University of Valencia, Valencia, Spain
| | - R Adam
- Hepato-Biliary Centre, Paul Brousse Hospital, Villejuif, France
| | - A Sobrero
- Medical Oncology, IRCCS San Martino Hospital, Genova, Italy
| | - J H Van Krieken
- Research Institute for Oncology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - D Aderka
- Division of Oncology, Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - E Aranda Aguilar
- Medical Oncology Department, University Hospital Reina Sofia, Cordoba, Spain
| | - A Bardelli
- School of Medicine, University of Turin, Turin, Italy
| | - A Benson
- Division of Hematology/Oncology, Northwestern Medical Group, Chicago, USA
| | - G Bodoky
- Department of Oncology, St László Hospital, Budapest, Hungary
| | - F Ciardiello
- Division of Medical Oncology, Seconda Università di Napoli, Naples, Italy
| | - A D'Hoore
- Abdominal Surgery, University Hospitals Gasthuisberg Leuven and KU Leuven, Leuven, Belgium
| | - E Diaz-Rubio
- Medical Oncology Department, Hospital Clínico San Carlos, Madrid, Spain
| | - J-Y Douillard
- Medical Oncology, Institut de Cancérologie de l'Ouest (ICO), St Herblain
| | - M Ducreux
- Department of Medical Oncology, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - A Falcone
- Department of Medical Oncology, University of Pisa, Pisa, Italy Division of Medical Oncology, Department of Oncology, University Hospital 'S. Chiara', Istituto Toscano Tumori, Pisa, Italy
| | - A Grothey
- Division of Medical Oncology, Mayo Clinic, Rochester, USA
| | - T Gruenberger
- Department of Surgery I, Rudolfstiftung Hospital, Vienna, Austria
| | - K Haustermans
- Department of Radiation Oncology, University Hospitals Gasthuisberg and KU Leuven, Leuven, Belgium
| | - V Heinemann
- Comprehensive Cancer Center, University Clinic Munich, Munich, Germany
| | - P Hoff
- Instituto do Câncer do Estado de São Paulo, University of São Paulo, São Paulo, Brazil
| | - C-H Köhne
- Northwest German Cancer Center, University Campus Klinikum Oldenburg, Oldenburg, Germany
| | - R Labianca
- Cancer Center, Ospedale Giovanni XXIII, Bergamo, Italy
| | - P Laurent-Puig
- Digestive Oncology Department, European Hospital Georges Pompidou, Paris, France
| | - B Ma
- Department of Clinical Oncology, Prince of Wales Hospital, State Key Laboratory in Oncology in South China, Chinese University of Hong Kong, Shatin, Hong Kong
| | - T Maughan
- CRUK/MRC Oxford Institute for Radiation Oncology, Gray Laboratories, University of Oxford, Oxford, UK
| | - K Muro
- Department of Clinical Oncology and Outpatient Treatment Center, Aichi Cancer Center Hospital, Nagoya, Japan
| | - N Normanno
- Cell Biology and Biotherapy Unit, I.N.T. Fondazione G. Pascale, Napoli, Italy
| | - P Österlund
- Helsinki University Central Hospital, Comprehensive Cancer Center, Helsinki, Finland Department of Oncology, University of Helsinki, Helsinki, Finland
| | - W J G Oyen
- The Institute of Cancer Research and The Royal Marsden Hospital, London, UK
| | - D Papamichael
- Department of Medical Oncology, Bank of Cyprus Oncology Centre, Nicosia, Cyprus
| | - G Pentheroudakis
- Department of Medical Oncology, University of Ioannina, Ioannina, Greece
| | - P Pfeiffer
- Department of Oncology, Odense University Hospital, Odense, Denmark
| | - T J Price
- Haematology and Medical Oncology Unit, Queen Elizabeth Hospital, Woodville, Australia
| | - C Punt
- Department of Medical Oncology, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - J Ricke
- Department of Radiology and Nuclear Medicine, University Clinic Magdeburg, Magdeburg, Germany
| | - A Roth
- Digestive Tumors Unit, Geneva University Hospitals (HUG), Geneva, Switzerland
| | - R Salazar
- Catalan Institute of Oncology (ICO), Barcelona, Spain
| | - W Scheithauer
- Department of Internal Medicine I and Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - H J Schmoll
- Department of Internal Medicine IV, University Clinic Halle, Martin-Luther-University Halle-Wittenberg, Halle, Germany
| | - J Tabernero
- Medical Oncology Department, Vall d' Hebron University Hospital, Vall d'Hebron Institute of Oncology (V.H.I.O.), Barcelona, Spain
| | - J Taïeb
- Digestive Oncology Department, European Hospital Georges Pompidou, Paris, France
| | - S Tejpar
- Digestive Oncology, University Hospitals Gasthuisberg Leuven and KU Leuven, Leuven, Belgium
| | - H Wasan
- Department of Cancer Medicine, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - T Yoshino
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Chiba, Japan
| | - A Zaanan
- Digestive Oncology Department, European Hospital Georges Pompidou, Paris, France
| | - D Arnold
- Instituto CUF de Oncologia (ICO), Lisbon, Portugal
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Molecular pathological classification of colorectal cancer. Virchows Arch 2016; 469:125-34. [PMID: 27325016 PMCID: PMC4978761 DOI: 10.1007/s00428-016-1956-3] [Citation(s) in RCA: 232] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/04/2016] [Accepted: 05/09/2016] [Indexed: 12/12/2022]
Abstract
Colorectal cancer (CRC) shows variable underlying molecular changes with two major mechanisms of genetic instability: chromosomal instability and microsatellite instability. This review aims to delineate the different pathways of colorectal carcinogenesis and provide an overview of the most recent advances in molecular pathological classification systems for colorectal cancer. Two molecular pathological classification systems for CRC have recently been proposed. Integrated molecular analysis by The Cancer Genome Atlas project is based on a wide-ranging genomic and transcriptomic characterisation study of CRC using array-based and sequencing technologies. This approach classified CRC into two major groups consistent with previous classification systems: (1) ∼16 % hypermutated cancers with either microsatellite instability (MSI) due to defective mismatch repair (∼13 %) or ultramutated cancers with DNA polymerase epsilon proofreading mutations (∼3 %); and (2) ∼84 % non-hypermutated, microsatellite stable (MSS) cancers with a high frequency of DNA somatic copy number alterations, which showed common mutations in APC, TP53, KRAS, SMAD4, and PIK3CA. The recent Consensus Molecular Subtypes (CMS) Consortium analysing CRC expression profiling data from multiple studies described four CMS groups: almost all hypermutated MSI cancers fell into the first category CMS1 (MSI-immune, 14 %) with the remaining MSS cancers subcategorised into three groups of CMS2 (canonical, 37 %), CMS3 (metabolic, 13 %) and CMS4 (mesenchymal, 23 %), with a residual unclassified group (mixed features, 13 %). Although further research is required to validate these two systems, they may be useful for clinical trial designs and future post-surgical adjuvant treatment decisions, particularly for tumours with aggressive features or predicted responsiveness to immune checkpoint blockade.
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Tougeron D, Guilloteau K, Karayan-Tapon L. Absence of IDH mutation in colorectal cancers with microsatellite instability. Dig Liver Dis 2016; 48:681-3. [PMID: 26987944 DOI: 10.1016/j.dld.2016.02.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 02/07/2016] [Accepted: 02/15/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Colorectal cancers (CRCs) with deficient DNA mismatch repair system (dMMR) represents approximately 12% of all CRCs. Sporadic dMMR CRCs are due to hypermethylation MLH1 gene promoter and associated with the CpG island methylator phenotype (CIMP). Isocitrate dehydrogenase (IDH) mutant tumors are associated with DNA hypermethylation in various cancers. AIMS Look if dMMR CRC are associated with IDH mutations. METHODS All consecutive dMMR CRCs between 2005 and 2014 were included in this study. Tumoral DNA used for dMMR analysis was also used to determine IDH1 and IDH2 mutations using pyrosequencing method. RESULTS A total of 152 dMMR CRCs patients were analyzed. No IDH mutation was observed in dMMR CRC, nor in IDH1 or IDH2. Especially, no mutation was found in sporadic dMMR CRC which is known to be associated with CIMP. CONCLUSIONS In contrast with others types of hypermethylated tumors, dMMR CRCs are not associated with IDH mutations.
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Affiliation(s)
- David Tougeron
- EA 4331/LITEC, Laboratoire Inflammation, Tissus Epithéliaux et Cytokines Poitiers, Poitiers University, France; Gastroenterology Department, Poitiers University Hospital, Poitiers, France.
| | - Karline Guilloteau
- Cancer Biology Department, Poitiers University Hospital, Poitiers, France
| | - Lucie Karayan-Tapon
- Cancer Biology Department, Poitiers University Hospital, Poitiers, France; INSERM U1084/LNEC, Poitiers University, Poitiers, France
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Immunohistochemical staining for p16 and BRAFV600E is useful to distinguish between sporadic and hereditary (Lynch syndrome-related) microsatellite instable colorectal carcinomas. Virchows Arch 2016; 469:135-44. [PMID: 27220764 DOI: 10.1007/s00428-016-1958-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 05/09/2016] [Accepted: 05/11/2016] [Indexed: 12/14/2022]
Abstract
DNA mismatch repair (MMR) protein analysis by immunohistochemistry (IHC) can identify colorectal cancer (CRC) with microsatellite instability (MSI). As MLH1-deficient CRC can be hereditary or sporadic, markers to distinguish between them are needed. MLH1 promoter methylation assay is the reference method; however, sometimes, it is challenging on formalin-fixed paraffin-embedded tissue samples. We assessed by IHC the expression of BRAFV600E, p16, MGMT, and CDX2 in 55 MLH1-deficient MSI CRC samples (of which 8 had a germline MLH1 mutation) to determine whether this panel differentiates between sporadic and hereditary CRCs. We also analyzed MLH1 promoter methylation by methylation-specific PCR and pyrosequencing and BRAF status by genotyping. None of the hereditary CRCs showed MLH1 methylation, BRAF mutation, BRAFV600E-positive immunostaining, or loss of p16 expression. We detected MLH1 promoter methylation in 67 % and a BRAF mutation in 42 % of CRC, all showing MLH1 promoter methylation. BRAFV600E IHC and BRAF genotyping gave concordant results in all but two samples. Loss of expression of p16 was found in 30 % of CRC with methylation of the MLH1 promoter, but its expression was retained in all non-methylated and part of MLH1-methylated tumors (100 % specificity, 30 % sensitivity). CDX2 and MGMT expression was not associated with MLH1 status. Thus, BRAFV600E and p16 IHC may help in differentiating sporadic from hereditary MLH1-deficient CRC with MSI. Specifically, p16 IHC might be used as a surrogate marker for MLH1 promoter methylation, because all p16-negative CRCs displayed MLH1 methylation, whereas hereditary CRCs were all p16-positive.
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Kawakami H, Zaanan A, Sinicrope FA. Microsatellite instability testing and its role in the management of colorectal cancer. Curr Treat Options Oncol 2016; 16:30. [PMID: 26031544 DOI: 10.1007/s11864-015-0348-2] [Citation(s) in RCA: 273] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Opinion statement: TNM stage remains the key determinant of patient prognosis after surgical resection of colorectal cancer (CRC), and informs treatment decisions. However, there is considerable stage-independent variability in clinical outcome that is likely due to molecular heterogeneity. This variability underscores the need for robust prognostic and predictive biomarkers to guide therapeutic decision-making including the use of adjuvant chemotherapy. Although the majority of CRCs develop via a chromosomal instability pathway, approximately 12-15 % have deficient DNA mismatch repair (dMMR) which is characterized in the tumor by microsatellite instability (MSI). Tumors with the dMMR/MSI develop from a germline mutation in an MMR gene (MLH1, MSH2, MSH6, PMS2), i.e., Lynch syndrome, or more commonly from epigenetic inactivation of MLH1 MMR gene. CRCs with dMMR/MSI status have a distinct phenotype that includes predilection for the proximal colon, poor differentiation, and abundant tumor-infiltrating lymphocytes. Consistent data indicate that these tumors have a better stage-adjusted survival compared to proficient MMR or microsatellite stable (MSS) tumors and may respond differently to 5-fluorouracil-based adjuvant chemotherapy. To increase the identification of dMMR/MSI patients in clinical practice that includes those with Lynch syndrome, it is recommended that all resected CRCs to be analyzed for MMR status. Available data indicate that patients with stage II dMMR CRCs have an excellent prognosis and do not benefit from 5-fluorouracil (FU)-based adjuvant chemotherapy which supports their recommended management by surgery alone. In contrast, the benefit of standard adjuvant chemotherapy with the FOLFOX regiment in stage III dMMR CRC patients awaits further study and therefore, all patients should be treated with standard adjuvant FOLFOX.
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Affiliation(s)
- Hisato Kawakami
- Mayo Clinic and Mayo Cancer Center, 200 First Street SW, Rochester, MN, 55905, USA
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Advanced small bowel adenocarcinoma: Molecular characteristics and therapeutic perspectives. Clin Res Hepatol Gastroenterol 2016; 40:154-60. [PMID: 26547136 DOI: 10.1016/j.clinre.2015.09.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 08/29/2015] [Accepted: 09/23/2015] [Indexed: 02/04/2023]
Abstract
Small bowel cancer represents less than 5% of all gastrointestinal cancers, while small bowel adenocarcinoma (SBA) accounts for about one third of all cancers of the small bowel. Although SBA frequently appears sporadically, some diseases are risk factors, such as Crohn's disease and some genetic predispositions to cancer. Progress in the identification of molecular alterations suggests some similarities in carcinogenesis between SBA and colorectal cancer. Evidence levels for the treatment and prognosis of these tumors are insufficient because of the scarcity of this disease and the absence of randomized trials. Chemotherapy based on fluoropyrimidine plus a platinum salt appears to be the most effective treatment regimen in non-randomized prospective trials for advanced SBA. Targeted therapy, against the angiogenic pathway or the epidermal growth factor receptor (EGFR) pathway, for example, is not yet established, but seems promising given the over-expression of vascular epithelial growth factor (VEGF)-A or EGFR observed in SBA. Phase I and II studies are currently evaluating the safety and efficacy of these targeted therapies in SBA treatment. The low incidence of SBA should promote the development of international collaborations to improve our knowledge of the biological mechanisms underlying these tumors and to set up therapeutic trials.
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Abstract
Lynch syndrome (LS) is the most common of all inherited cancer syndromes, associated with substantially elevated risks for colonic and extracolonic malignancies, earlier onset and high rates of multiple primary cancers. At the genetic level, it is caused by a defective mismatch repair (MMR) system due to presence of germline defects in at least one of the MMR genes- MLH1, MSH2, MSH6, PMS2 or EPCAM. An impaired MMR function during replication introduces infidelity in DNA sequence and leads to ubiquitous mutations at simple repetitive sequences (microsatellites), causing microsatellite instability (MSI). Although previously, clinicopathological criteria such as Amsterdam I/II and Revised Bethesda Guidelines were commonly used to identify suspected LS mutation carriers, there has been a recent push towards universally testing, especially in case of colorectal cancers (CRCs), through immunohistochemistry for expression of MMR proteins or through molecular tests (polymerase chain reaction, PCR) for MSI, in order to identify LS mutation carriers and subject them to genetic testing to ascertain the specific gene implicated. In this review, we have discussed the latest diagnostic strategies and the current screening and treatment guidelines for colonic and extracolonic cancers in clinically affected and at-risk individuals for LS.
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Affiliation(s)
- A K Tiwari
- From the Section of Gastroenterology, Boston University Medical Center, Boston, MA, USA and
| | - H K Roy
- From the Section of Gastroenterology, Boston University Medical Center, Boston, MA, USA and
| | - H T Lynch
- Department of Preventive Medicine and Public Health, Creighton University, Omaha NE, USA
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Tougeron D, Mouillet G, Trouilloud I, Lecomte T, Coriat R, Aparicio T, Des Guetz G, Lécaille C, Artru P, Sickersen G, Cauchin E, Sefrioui D, Boussaha T, Ferru A, Matysiak-Budnik T, Silvain C, Karayan-Tapon L, Pagès JC, Vernerey D, Bonnetain F, Michel P, Taïeb J, Zaanan A. Efficacy of Adjuvant Chemotherapy in Colon Cancer With Microsatellite Instability: A Large Multicenter AGEO Study. J Natl Cancer Inst 2016; 108:djv438. [PMID: 26839356 DOI: 10.1093/jnci/djv438] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 12/21/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Deficient mismatch repair (dMMR) colon cancer (CC) is reportedly resistant to 5-fluorouracil (5FU) adjuvant chemotherapy while preliminary data suggest chemosensitivity to oxaliplatin. We assessed the efficacy of fluoropyrimidine with and without oxaliplatin in a large cohort of dMMR CC patients. METHODS This retrospective multicenter study included all consecutive patients who underwent curative surgical resection for stage II or III dMMR CC between 2000 and 2011. Prognostic factors were analyzed using Cox models, and hazard ratios (HRs) with 95% confidence intervals (CIs) were calculated. All statistical tests were two-sided. RESULTS A total of 433 dMMR CC patients were included (56.8% stage II, 43.2% stage III). Mean follow-up was 47.0 months. The patients received surgery alone (n = 263) or surgery plus adjuvant chemotherapy consisting of fluoropyrimidine with (n = 119) or without (n = 51) oxaliplatin. Adjuvant chemotherapy was administered to 16.7% of stage II and 69.0% of stage III CC patients. As compared with surgery alone, adjuvant oxaliplatin-based chemotherapy improved disease-free survival (DFS) in multivariable analysis (HR = 0.35, 95% CI = 0.19 to 0.65, P < .001), contrary to adjuvant fluoropyrimidine alone (HR = 0.73, 95% CI = 0.36 to 1.49, P = .38). In the subgroup analysis, the DFS benefit of oxaliplatin-based chemotherapy was statistically significant in multivariable analysis only in stage III (HR = 0.41, 95% CI = 0.19 to 0.87, P = .02). CONCLUSION This study supports the use of adjuvant chemotherapy with fluoropyrimidine plus oxaliplatin in stage III dMMR CC.
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Affiliation(s)
- David Tougeron
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Guillaume Mouillet
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Isabelle Trouilloud
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Thierry Lecomte
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Romain Coriat
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Thomas Aparicio
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Gaetan Des Guetz
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Cédric Lécaille
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Pascal Artru
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Gaelle Sickersen
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Estelle Cauchin
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - David Sefrioui
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Tarek Boussaha
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Aurélie Ferru
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Tamara Matysiak-Budnik
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Christine Silvain
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Lucie Karayan-Tapon
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Jean-Christophe Pagès
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Dewi Vernerey
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Franck Bonnetain
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Pierre Michel
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Julien Taïeb
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
| | - Aziz Zaanan
- Affiliations of authors: Department of Gastroenterology (DT, GS, CS), Department of Medical Oncology (AF), and Department of Molecular Oncology (LKT), Poitiers University Hospital , Poitiers , France ; Laboratoire Inflammation, Tissus Epithéliaux et Cytokines (LITEC) - EA 4331, Poitiers University , Poitiers (DT, CS); Methodology and Quality of Life in Oncology Unit, Besançon University Hospital , Besançon , France (GM); Department of Gastroenterology, Ambroise Paré Hospital , Boulogne-Billancourt , France (IT); Department of Gastroenterology (TL) and Department of Biochemistry (JCP), Tours University Hospital , Tours , France , UMR GICC CNRS 7292, Tours François Rabelais University, Tours (TL); Paris Descartes University, Cochin Hospital , Paris , France (RC); Department of Gastroenterology (TA) and Department of Medical Oncology (CDG), Avicenne Hospital , Bobigny , France ; Department of Gastroenterology, Bordeaux Nord Aquitaine Clinic , Bordeaux , France (CL); Department of Gastroenterology, Jean Mermoz Lyon Hospital , Lyon , France (PA); Department of Gastroenterology, Nantes University Hospital , Nantes , France (EC, TMB); Department of Gastroenterology, Rouen University Hospital , Rouen , France (DS, PM); Department of Medical Oncology, Saint-Antoine Hospital , Paris , France (TB); Department of Gastroenterology and Digestive Oncology, Georges Pompidou European Hospital, APHP , Paris , France (JT, AZ); Paris Descartes University, Sorbonne Paris Cité , Paris , France (RC, JT, AZ)
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Kawakami H, Zaanan A, Sinicrope FA. Implications of mismatch repair-deficient status on management of early stage colorectal cancer. J Gastrointest Oncol 2015; 6:676-84. [PMID: 26697201 DOI: 10.3978/j.issn.2078-6891.2015.065] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
For primary colorectal cancers (CRCs), tumor stage has been the best predictor of survival after resection and the key determinant of patient management. However, considerable stage-independent variability in clinical outcome is observed that is likely due to molecular heterogeneity. This is particularly important in early stage CRCs where patients can be cured by surgery alone and only a proportion derives benefit from adjuvant chemotherapy. Thus, the identification of molecular prognostic markers to supplement conventional pathologic staging systems has the potential to guide patient management and influence outcomes. CRC is a heterogeneous disease with molecular phenotypes reflecting distinct forms of genetic instability. The chromosomal instability pathway (CIN) is the most common phenotype, accounting for 85% of all sporadic CRCs. Alternatively, the microsatellite instability (MSI) phenotype represents ~15% of all CRCs and is caused by deficient DNA mismatch repair (MMR) as a consequence of germline mutations in MMR genes or, more commonly, epigenetic silencing of the MLH1 gene with frequent mutations in the BRAF oncogene. MSI tumors have distinct phenotypic features and are consistently associated with a better stage-adjusted prognosis compared with microsatellite stable (MSS) tumors. Among non-metastatic CRCs, the difference in prognosis between MSI and MSS tumors is larger for stage II than stage III patients. On the other hand, the predictive impact of MMR status for adjuvant chemotherapy remains a contentious issue in that most studies demonstrate a lack of benefit for 5-fluorouracil (5-FU)-based adjuvant chemotherapy in stage II MSI-H CRCs, whereas it remains unclear in MSI-H stage III tumors. Here, we describe the molecular aspects of the MMR system and discuss the implications of MMR-deficient/MSI-H status in the clinical management of patients with early stage CRC.
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Affiliation(s)
- Hisato Kawakami
- Mayo Clinic and Mayo Cancer Center, Rochester, MN 55905, USA
| | - Aziz Zaanan
- Mayo Clinic and Mayo Cancer Center, Rochester, MN 55905, USA
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Fisher KW, Lopez-Beltran A, Montironi R, Cheng L. Precision medicine in colorectal cancer: evolving genomic landscape and emerging consensus. Future Oncol 2015; 11:2711-2719. [PMID: 26338658 DOI: 10.2217/fon.15.219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Colorectal cancer is the third most lethal cancer in men and women in the USA. Although surgical resection is the mainstay of treatment, many patients develop local and widely metastatic disease and become resistant to conventional chemotherapeutics. Recent comprehensive molecular characterization has led to subclassification of colorectal adenocarcinoma based on molecular properties, such as microsatellite instability and high CpG island methylation. These emerging subclassifications are associate with varying frequencies of RAS, BRAF, APC and other genetic events and have the ability to redefine therapeutic regimens. In this review, we examine how molecular diagnostics are currently used while providing insight into emerging implications for molecular analysis for personalized therapy in colorectal cancer.
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Affiliation(s)
- Kurt W Fisher
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, IN 46202, USA
| | - Antonio Lopez-Beltran
- Unit of Anatomical Pathology, Department of Surgery, Faculty of Medicine, Avda. Menendez Pidal s/n E-14004 Cordoba, Spain.,Champalimaud Clinical Center, Avda. Brasilia, 1400-038 Lisbon, Portugal
| | - Rodolfo Montironi
- Pathological Anatomy, Polytechnic University of the Marche Region, School of Medicine, Piazza Roma, 22, Ancona, Italy
| | - Liang Cheng
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, IN 46202, USA
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Puerta-García E, Cañadas-Garre M, Calleja-Hernández MÁ. Molecular biomarkers in colorectal carcinoma. Pharmacogenomics 2015; 16:1189-222. [PMID: 26237292 DOI: 10.2217/pgs.15.63] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer is a tumor with increasing incidence which represents one of the first leading causes of death worldwide. Gene alterations described for colorectal cancer include genome instability (microsatellite and chromosomal instability), CpG islands methylator phenotype, microRNA, histone modification, protein biomarkers, gene mutations (RAS, BRAF, PI3K, TP53, PTEN) and polymorphisms (APC, CTNNB1, DCC). In this article, biomarkers with prognostic value commonly found in colorectal cancer will be reviewed.
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Affiliation(s)
- Elena Puerta-García
- Pharmacogenetics Unit, UGC Provincial de Farmacia de Granada, Instituto de Investigación Biosanitaria de Granada, Complejo Hospitalario Universitario de Granada, Avda. Fuerzas Armadas, 2, 18014 Granada, Spain
| | - Marisa Cañadas-Garre
- Pharmacogenetics Unit, UGC Provincial de Farmacia de Granada, Instituto de Investigación Biosanitaria de Granada, Complejo Hospitalario Universitario de Granada, Avda. Fuerzas Armadas, 2, 18014 Granada, Spain
| | - Miguel Ángel Calleja-Hernández
- Pharmacogenetics Unit, UGC Provincial de Farmacia de Granada, Instituto de Investigación Biosanitaria de Granada, Complejo Hospitalario Universitario de Granada, Avda. Fuerzas Armadas, 2, 18014 Granada, Spain
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Sekal M, Ameurtesse H, Chbani L, Ouldim K, Bennis S, Abkari M, Boulouz A, Benajah DA, Benjelloun B, Ousadden A, Ait Taleb K, Ait Laalim S, Toghrai I, Mazaz K, Arifi S, Mellas N, El Rhazi K, Harmouch T, Ibrahimi SA, Amarti Riffi A. Epigenetics could explain some Moroccan population colorectal cancers peculiarities: microsatellite instability pathway exploration. Diagn Pathol 2015; 10:77. [PMID: 26104511 PMCID: PMC4477595 DOI: 10.1186/s13000-015-0326-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 06/12/2015] [Indexed: 12/12/2022] Open
Abstract
Background Colorectal Cancers (CRC) are one of the most common malignancies in the world. Their incidence in Morocco, between 2005 and 2007, was 5.6 for 100000 inhabitants, which is very low compared to what found in developed countries. In addition, CRCs show a high frequency of rectal localizations, and occurs in a younger population in Morocco compared to what found in developed countries. The purpose of this study is to confirm these CRC peculiarities in Morocco and try to explain them by exploring the microsatellite instability molecular pathway. Methods This is a prospective observational study conducted since January 2010, including 385 patients admitted in Hassan II University Hospital of Fez. We collected clinical, radiological and pathological data. We investigated the expression of mismatch repair (MMR) proteins in 214 patients and BRAF gene mutations in 159 patients. Results Mean age was 55.08 +/− 15.16 years. 36.5 % of patients were less than 50 years old and 49.3 % of tumors were localized in the rectum. Loss of MMR protein expression was observed in 11.2 % of cases. It was independently associated with individual or family history of cancer belonging to Hereditary Non-Polyposis Colorectal Cancer (HNPCC) spectrum (p = 0.01) and proximal localization (p = 0.02). No BRAF mutation was detected in all cases. Conclusions These results confirm the high occurrence of CRCs to young patients and the high frequency of rectal localizations in Moroccan population. They mostly show an absence of BRAF mutation, supposing a rarity of MLH1 promoter hypermethylation pathway, which may even partially explain the CRC peculiarities in our context. Virtual Slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/5868184711716884
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Affiliation(s)
- Mohammed Sekal
- Department of pathology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Hassania Ameurtesse
- Department of pathology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Laila Chbani
- Department of pathology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Karim Ouldim
- Department of molecular genetics, University hospital Hassan II of Fez, Fez, Morocco.
| | - Sanae Bennis
- Department of molecular genetics, University hospital Hassan II of Fez, Fez, Morocco.
| | - Mohammed Abkari
- Department of gastroenterology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Amal Boulouz
- Department of molecular genetics, University hospital Hassan II of Fez, Fez, Morocco.
| | - Dafr Allah Benajah
- Department of gastroenterology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Basher Benjelloun
- Department of visceral surgery, University hospital Hassan II of Fez, Fez, Morocco.
| | - Abdelmalek Ousadden
- Department of visceral surgery, University hospital Hassan II of Fez, Fez, Morocco.
| | - Khalid Ait Taleb
- Department of visceral surgery, University hospital Hassan II of Fez, Fez, Morocco.
| | - Said Ait Laalim
- Department of visceral surgery, University hospital Hassan II of Fez, Fez, Morocco.
| | - Imane Toghrai
- Department of visceral surgery, University hospital Hassan II of Fez, Fez, Morocco.
| | - Khalid Mazaz
- Department of visceral surgery, University hospital Hassan II of Fez, Fez, Morocco.
| | - Samia Arifi
- Department of oncology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Nawfel Mellas
- Department of oncology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Karima El Rhazi
- Department of epidemiology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Taoufiq Harmouch
- Department of pathology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Sidi Adil Ibrahimi
- Department of gastroenterology, University hospital Hassan II of Fez, Fez, Morocco.
| | - Afaf Amarti Riffi
- Department of pathology, University hospital Hassan II of Fez, Fez, Morocco.
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Snowsill T, Huxley N, Hoyle M, Jones-Hughes T, Coelho H, Cooper C, Frayling I, Hyde C. A systematic review and economic evaluation of diagnostic strategies for Lynch syndrome. Health Technol Assess 2015; 18:1-406. [PMID: 25244061 DOI: 10.3310/hta18580] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Lynch syndrome (LS) is an inherited autosomal dominant disorder characterised by an increased risk of colorectal cancer (CRC) and other cancers, and caused by mutations in the deoxyribonucleic acid (DNA) mismatch repair genes. OBJECTIVE To evaluate the accuracy and cost-effectiveness of strategies to identify LS in newly diagnosed early-onset CRC patients (aged < 50 years). Cascade testing of relatives is employed in all strategies for individuals in whom LS is identified. DATA SOURCES AND METHODS Systematic reviews were conducted of the test accuracy of microsatellite instability (MSI) testing or immunohistochemistry (IHC) in individuals with CRC at risk of LS, and of economic evidence relating to diagnostic strategies for LS. Reviews were carried out in April 2012 (test accuracy); and in February 2012, repeated in February 2013 (economic evaluations). Databases searched included MEDLINE (1946 to April week 3, 2012), EMBASE (1980 to week 17, 2012) and Web of Science (inception to 30 April 2012), and risk of bias for test accuracy was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) quality appraisal tool. A de novo economic model of diagnostic strategies for LS was developed. RESULTS Inconsistencies in study designs precluded pooling of diagnostic test accuracy results from a previous systematic review and nine subsequent primary studies. These were of mixed quality, with significant methodological concerns identified for most. IHC and MSI can both play a part in diagnosing LS but neither is gold standard. No UK studies evaluated the cost-effectiveness of diagnosing and managing LS, although studies from other countries generally found some strategies to be cost-effective compared with no testing. The de novo model demonstrated that all strategies were cost-effective compared with no testing at a threshold of £20,000 per quality-adjusted life-year (QALY), with the most cost-effective strategy utilising MSI and BRAF testing [incremental cost-effectiveness ratio (ICER) = £5491 per QALY]. The maximum health benefit to the population of interest would be obtained using universal germline testing, but this would not be a cost-effective use of NHS resources compared with the next best strategy. When the age limit was raised from 50 to 60 and 70 years, the ICERs compared with no testing increased but remained below £20,000 per QALY (except for universal germline testing with an age limit of 70 years). The total net health benefit increased with the age limit as more individuals with LS were identified. Uncertainty was evaluated through univariate sensitivity analyses, which suggested that the parameters substantially affecting cost-effectiveness: were the risk of CRC for individuals with LS; the average number of relatives identified per index patient; the effectiveness of colonoscopy in preventing metachronous CRC; the cost of colonoscopy; the duration of the psychological impact of genetic testing on health-related quality of life (HRQoL); and the impact of prophylactic hysterectomy and bilateral salpingo-oophorectomy on HRQoL (this had the potential to make all testing strategies more expensive and less effective than no testing). LIMITATIONS The absence of high-quality data for the impact of prophylactic gynaecological surgery and the psychological impact of genetic testing on HRQoL is an acknowledged limitation. CONCLUSIONS Results suggest that reflex testing for LS in newly diagnosed CRC patients aged < 50 years is cost-effective. Such testing may also be cost-effective in newly diagnosed CRC patients aged < 60 or < 70 years. Results are subject to uncertainty due to a number of parameters, for some of which good estimates were not identified. We recommend future research to estimate the cost-effectiveness of testing for LS in individuals with newly diagnosed endometrial or ovarian cancer, and the inclusion of aspirin chemoprevention. Further research is required to accurately estimate the impact of interventions on HRQoL. STUDY REGISTRATION This study is registered as PROSPERO CRD42012002436. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Affiliation(s)
- Tristan Snowsill
- Peninsula Technology Assessment Group (PenTAG), University of Exeter Medical School, Exeter, UK
| | - Nicola Huxley
- Peninsula Technology Assessment Group (PenTAG), University of Exeter Medical School, Exeter, UK
| | - Martin Hoyle
- Peninsula Technology Assessment Group (PenTAG), University of Exeter Medical School, Exeter, UK
| | - Tracey Jones-Hughes
- Peninsula Technology Assessment Group (PenTAG), University of Exeter Medical School, Exeter, UK
| | - Helen Coelho
- Peninsula Technology Assessment Group (PenTAG), University of Exeter Medical School, Exeter, UK
| | - Chris Cooper
- Peninsula Technology Assessment Group (PenTAG), University of Exeter Medical School, Exeter, UK
| | - Ian Frayling
- Institute of Medical Genetics, Cardiff University, Cardiff, UK
| | - Chris Hyde
- Peninsula Technology Assessment Group (PenTAG), University of Exeter Medical School, Exeter, UK
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Brosens LAA, Offerhaus GJA, Giardiello FM. Hereditary Colorectal Cancer: Genetics and Screening. Surg Clin North Am 2015; 95:1067-80. [PMID: 26315524 DOI: 10.1016/j.suc.2015.05.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Colorectal cancer (CRC) is the third most common cancer and the third leading cause of cancer death in men and women in the United States. About 30% of patients with CRC report a family history of CRC. However, only 5% of CRCs arise in the setting of a well-established mendelian inherited disorder. In addition, serrated polyposis is a clinically defined syndrome with multiple serrated polyps in the colorectum and an increased CRC risk for which the genetics are unknown. This article focuses on genetic and clinical aspects of Lynch syndrome, familial adenomatous polyposis, and MUTYH-associated polyposis.
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Affiliation(s)
- Lodewijk A A Brosens
- Department of Pathology, University Medical Center Utrecht (H04-312), Heidelberglaan 100, Utrecht 3584 CX, The Netherlands; Department of Pathology, The Johns Hopkins University School of Medicine, CRB 2, Room 345, 1550 Orleans Street, Baltimore, MD 21231, USA.
| | - G Johan A Offerhaus
- Department of Pathology, University Medical Center Utrecht (H04-312), Heidelberglaan 100, Utrecht 3584 CX, The Netherlands
| | - Francis M Giardiello
- Department of Medicine, Oncology Center, The Johns Hopkins University School of Medicine, 1830 East Monument Street, Room 431, Baltimore, MD 21205, USA; Department of Pathology, The Johns Hopkins University School of Medicine, 1830 East Monument Street, Room 431, Baltimore, MD 21205, USA.
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KRAS and BRAF Mutation Detection: Is Immunohistochemistry a Possible Alternative to Molecular Biology in Colorectal Cancer? Gastroenterol Res Pract 2015; 2015:753903. [PMID: 25983749 PMCID: PMC4422999 DOI: 10.1155/2015/753903] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 01/07/2015] [Indexed: 01/05/2023] Open
Abstract
KRAS genotyping is mandatory in metastatic colorectal cancer treatment prior to undertaking antiepidermal growth factor receptor (EGFR) monoclonal antibody therapy. BRAF V600E mutation is often present in colorectal carcinoma with CpG island methylator phenotype and microsatellite instability. Currently, KRAS and BRAF evaluation is based on molecular biology techniques such as SNaPshot or Sanger sequencing. As molecular testing is performed on formalin-fixed paraffin-embedded (FFPE) samples, immunodetection would appear to be an attractive alternative for detecting mutations. Thus, our objective was to assess the validity of KRAS and BRAF immunodetection of mutations compared with the genotyping reference method in colorectal adenocarcinoma. KRAS and BRAF genotyping was assessed by SNaPshot. A rabbit anti-human KRAS polyclonal antibody was tested on 33 FFPE colorectal tumor samples with known KRAS status. Additionally, a mouse anti-human BRAF monoclonal antibody was tested on 30 FFPE tumor samples with known BRAF status. KRAS immunostaining demonstrated both poor sensitivity (27%) and specificity (64%) in detecting KRAS mutation. Conversely, BRAF immunohistochemistry showed perfect sensitivity (100%) and specificity (100%) in detecting V600E mutation. Although molecular biology remains the reference method for detecting KRAS mutation, immunohistochemistry could be an attractive method for detecting BRAF V600E mutation in colorectal cancer.
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Yamamoto H, Imai K. Microsatellite instability: an update. Arch Toxicol 2015; 89:899-921. [PMID: 25701956 DOI: 10.1007/s00204-015-1474-0] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 02/09/2015] [Indexed: 02/08/2023]
Abstract
Deficient DNA mismatch repair (MMR) results in a strong mutator phenotype known as microsatellite instability (MSI), which is a hallmark of Lynch syndrome-associated cancers. MSI is characterized by length alterations within simple repeated sequences that are called microsatellites. Lynch syndrome is primarily caused by mutations in the MMR genes, mainly MLH1 and MSH2, and less frequently in MSH6, and rarely PMS2, and large genomic rearrangements account for 5-20 % of all mutations. Germ line hemiallelic methylations of MLH1 or MSH2 are termed as epimutations and have been identified as causative of Lynch syndrome. Moreover, germ line 3' deletions of EPCAM gene is involved in MSH2 methylation. MSI is also observed in about 15 % of sporadic colorectal cancer (CRC), gastric cancer (GC), and endometrial cancer (EC), and at lower frequencies in other cancers, often in association with hypermethylation of the MLH1 gene. Trimethylation of histone H3 on Lys36 (H3K36 me3) is an epigenetic histone mark that was required for DNA MMR in vivo. Thus, mutations in the H3K36 trimethyltransferase SETD2 have been reported as a potential cause of MSI. Genetic, epigenetic, and transcriptomic differences have been identified between cancers with and without MSI. Recent comprehensive molecular characterizations of CRC, EC, and GC by The Cancer Genome Atlas indicate that MSI+ cancers are distinct biological entities. The BRAF V600E mutation is specifically associated with sporadic MSI+ CRCs with methylated MLH1, but is not associated with Lynch syndrome-related CRCs. Accumulating evidence indicates a role of interactions between MSI and microRNA (miRNA) in the pathogenesis of MSI-positive (MSI+) cancer. As another new mechanism underlying MSI, overexpression of miR-155 or miR-21 has been shown to downregulate the expression of the MMR genes. Gene targets of frameshift mutations caused by MSI are involved in various cellular functions, including DNA repair (MSH3 and MSH6), cell signaling (TGFBR2 and ACVR2A), apoptosis (BAX), epigenetic regulation (HDAC2 and ARID1A), and miRNA processing (TARBP2 and XPO5), and a subset of MSI+ CRCs reportedly shows the mutated miRNA machinery phenotype. Moreover, microsatellite repeats in miRNA genes, such as hsa-miR-1273c, may be novel MSI targets for CRC, and mutations in noncoding regulatory regions of MRE11, BAX (BaxΔ2), and HSP110 (HSP110ΔE9) may affect the efficiency of chemotherapy. Thus, analyses of MSI and its related molecular alterations in cancers are increasingly relevant in clinical settings, and MSI is a useful screening marker for identifying patients with Lynch syndrome and a prognostic factor for chemotherapeutic interventions. In this review, we summarize recent advances in the pathogenesis of MSI and focus on genome-wide analyses that indicate the potential use of MSI and related alterations as biomarkers and novel therapeutic targets.
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Affiliation(s)
- Hiroyuki Yamamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, 216-8511, Japan,
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47
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Microsatellite instability in gallbladder carcinoma. Virchows Arch 2015; 466:393-402. [PMID: 25680569 DOI: 10.1007/s00428-015-1720-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 01/06/2015] [Accepted: 01/19/2015] [Indexed: 01/28/2023]
Abstract
The genetic abnormalities involved in the pathogenesis of gallbladder carcinoma (GBC) remain unclear. Microsatellite instability (MSI) has been described in many carcinomas, but little is known about the significance of mismatch repair in gallbladder carcinogenesis. Additionally, methylation status of long interspersed element-1 (LINE-1), a surrogate marker of global DNA methylation, has defined distinct subsets of other cancer types but has not been explored in GBC. Immunohistochemical expression of MSH2, MSH6, MLH1, and PMS2 and LINE-1 mRNA in situ hybridization was evaluated in 67 primary and 15 metastatic GBCs from 77 patients. Amplification of human epidermal growth factor receptor 2 (HER2) was evaluated by fluorescence in situ hybridization. Genotyping for 24 genes involved in carcinogenesis was performed using a multiplex PCR-based platform. MSI was present in 6 of 77 GBCs (7.8 %). Loss of MSH2/MSH6 was detected in five cases and loss of MLH1/PMS2 in one case. MSI status was not associated with Lynch syndrome, tumor grade, extracellular mucin, or tumor-infiltrating lymphocytes. There was no significant difference in mean overall survival of patients with and without MSI. Strong LINE-1 staining was identified in none of the GBC with MSI and in 36 of 69 (52 %) of those without MSI (p = 0.005), suggesting that LINE-1 in the former cohort was hypermethylated. All MSI tumors were negative for HER2 amplification, and TP53 and NRAS mutations were only found in GBC without MSI. MSI was identified in a minority of GBC cases. The strong correlation between global DNA methylation as measured by LINE-1 and loss of mismatch repair proteins suggests that methylation may account for the loss of these proteins. These hypermethylated tumors appear to represent a genetically unique cohort of gallbladder neoplasms, and the data suggests that demethylating agents may have a therapeutic value in this class of tumors.
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Green DE, Jayakrishnan TT, Hwang M, Pappas SG, Gamblin TC, Turaga KK. Immunohistochemistry - microarray analysis of patients with peritoneal metastases of appendiceal or colorectal origin. Front Surg 2015; 1:50. [PMID: 25593974 PMCID: PMC4286965 DOI: 10.3389/fsurg.2014.00050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 11/27/2014] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND The value of immunohistochemistry (IHC)-microarray analysis of pathological specimens in the management of patients is controversial, although preliminary data suggest potential benefit. We describe the characteristics of patients undergoing a commercially available IHC-microarray method in patients with peritoneal metastases (PM) and the feasibility of this technique in this population. METHODS We retrospectively analyzed consecutive patients with pathologically confirmed PM from appendiceal or colorectal primary who underwent Caris Molecular Intelligence(™) testing. IHC, microarray, FISH, and mutational analysis were included and stratified by Peritoneal Carcinomatosis Index (PCI) score, histology, and treatment characteristics. Statistical analysis was performed using non-parametric tests. RESULTS Our study included 5 patients with appendiceal and 11 with colorectal PM. The median age of patients was 51 (IQR 39-65) years, with 11 (68%) female. The median PCI score of the patients was 17 (IQR 10-25). Hyperthermic intra-peritoneal chemoperfusion was performed in 4 (80%) patients with appendiceal primary tumors and 4 (36%) with colorectal primary. KRAS mutations were encountered in 40% of appendiceal vs. 30% colorectal tumors, while BRAF mutations were seen in 40% of colorectal PM and none of the patients with appendiceal PM (p = 0.06). IHC biomarker expression was not significantly different between the two primaries. Sufficient tumor for microarray analysis was found in 44% (n = 7) patients, which was not associated with previous use of chemotherapy (p > 0.20 for 5-FU/LV, Irinotecan and Oxaliplatin). CONCLUSION In a small sample of patients with PM, the feasibility and results of IHC-microarray staining based on a commercially available test is reported. The apparent high incidence of the BRAF mutation in patients with PM may potentially offer opportunities for novel therapeutics and suggest that IHC-microarray is a method that can be used in this population.
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Affiliation(s)
- Danielle E Green
- Division of Surgical Oncology, Department of Surgery, Medical College of Wisconsin , Milwaukee, WI , USA
| | - Thejus T Jayakrishnan
- Division of Surgical Oncology, Department of Surgery, Medical College of Wisconsin , Milwaukee, WI , USA
| | - Michael Hwang
- Division of Surgical Oncology, Department of Surgery, Medical College of Wisconsin , Milwaukee, WI , USA
| | - Sam G Pappas
- Division of Surgical Oncology, Department of Surgery, Loyola University Medical Center , Maywood, IL , USA
| | - T Clark Gamblin
- Division of Surgical Oncology, Department of Surgery, Medical College of Wisconsin , Milwaukee, WI , USA
| | - Kiran K Turaga
- Division of Surgical Oncology, Department of Surgery, Medical College of Wisconsin , Milwaukee, WI , USA
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Sinicrope FA, Shi Q, Smyrk TC, Thibodeau SN, Dienstmann R, Guinney J, Bot BM, Tejpar S, Delorenzi M, Goldberg RM, Mahoney M, Sargent DJ, Alberts SR. Molecular markers identify subtypes of stage III colon cancer associated with patient outcomes. Gastroenterology 2015; 148:88-99. [PMID: 25305506 PMCID: PMC4274188 DOI: 10.1053/j.gastro.2014.09.041] [Citation(s) in RCA: 252] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 09/26/2014] [Accepted: 09/29/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Categorization of colon cancers into distinct subtypes using a combination of pathway-based biomarkers could provide insight into stage-independent variability in outcomes. METHODS We used a polymerase chain reaction-based assay to detect mutations in BRAF (V600E) and in KRAS in 2720 stage III cancer samples, collected prospectively from patients participating in an adjuvant chemotherapy trial (NCCTG N0147). Tumors deficient or proficient in DNA mismatch repair (MMR) were identified based on detection of MLH1, MSH2, and MSH6 proteins and methylation of the MLH1 promoter. Findings were validated using tumor samples from a separate set of patients with stage III cancer (n = 783). Association with 5-year disease-free survival was evaluated using Cox proportional hazards models. RESULTS Tumors were categorized into 5 subtypes based on MMR status and detection of BRAF or KRAS mutations which were mutually exclusive. Three subtypes were MMR proficient: those with mutations in BRAF (6.9% of samples), mutations in KRAS (35%), or tumors lacking either BRAF or KRAS mutations (49%). Two subtypes were MMR deficient: the sporadic type (6.8%) with BRAF mutation and/or or hypermethylation of MLH1 and the familial type (2.6%), which lacked BRAF(V600E) or hypermethylation of MLH1. A higher percentage of MMR-proficient tumors with BRAF(V600E) were proximal (76%), high-grade (44%), N2 stage (59%), and detected in women (59%), compared with MMR-proficient tumors without BRAF(V600E) or KRAS mutations (33%, 19%, 41%, and 42%, respectively; all P < .0001). A significantly lower proportion of patients with MMR-proficient tumors with mutant BRAF (hazard ratio = 1.43; 95% confidence interval: 1.11-1.85; Padjusted = .0065) or mutant KRAS (hazard ratio = 1.48; 95% confidence interval: 1.27-1.74; Padjusted < .0001) survived disease-free for 5 years compared with patients whose MMR-proficient tumors lacked mutations in either gene. Disease-free survival rates of patients with MMR-deficient sporadic or familial subtypes was similar to those of patients with MMR-proficient tumors without BRAF or KRAS mutations. The observed differences in survival rates of patients with different tumor subtypes were validated in an independent cohort. CONCLUSIONS We identified subtypes of stage III colon cancer, based on detection of mutations in BRAF (V600E) or KRAS, and MMR status that show differences in clinical and pathologic features and disease-free survival. Patients with MMR-proficient tumors and BRAF or KRAS mutations had statistically shorter survival times than patients whose tumors lacked these mutations. The tumor subtype found in nearly half of the study cohort (MMR-proficient without BRAF(V600E) or KRAS mutations) had similar outcomes to those of patients with MMR-deficient cancers.
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Affiliation(s)
- Frank A. Sinicrope
- Department of Medicine, Mayo Clinic, Rochester, MN,Department of Oncology, Mayo Clinic, Rochester, MN
| | - Qian Shi
- Alliance Statistics and Data Center, Mayo Clinic, Rochester, MN
| | - Thomas C. Smyrk
- Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | | | | | | | | | - Sabine Tejpar
- Molecular Digestive Oncology, KU Leuven, The Netherlands
| | - Mauro Delorenzi
- Swiss Institute of Bioinformatics, University Lausanne, Switzerland
| | - Richard M. Goldberg
- Division of Medical Oncology, Ohio State University Comprehensive Cancer Center, Columbus, OH
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Raskin GA, Pozharissky KM, Orlova RV, Petrov SV. [Prognostic values of the clinical, morphological and molecular biological characteristics of colon adenocarcinoma]. Arkh Patol 2015; 77:26-30. [PMID: 26978017 DOI: 10.17116/patol201577526-30] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVE to estimate the predictive and prognostic factors using morphological studies in patients with colon cancer to increase survival rates. SUBJECTS AND METHODS Immunohistochemical examination was made in 582 patients with colon adenocarcinoma, by determining 11 different indicators relating to the development of the tumor and its treatment. RESULTS The simultaneous determination of the chemokine receptor CXCR4 and proliferative activity (Ki-67 expression) can define disease prognosis in view of relapse-survival rates in patients with Stage II colon cancer after radical surgical treatment. CONCLUSION Thymidylate synthase and thymidine phosphorylase are of predictive value. The immunohistochemical examination of other markers, such as ALDH1, CCR10, ERCC-1, DYPD, topoisomerase II alpha, and class III beta-tubulin for the choice of treatment policy for patients with colon cancer has indicated that they are of no value.
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Affiliation(s)
- G A Raskin
- Russian Research Center for Radiology and Surgical Technologies, Saint Petersburg, Russia; Medical Faculty, Saint Petersburg State University, Saint Petersburg, Russia
| | - K M Pozharissky
- Russian Research Center for Radiology and Surgical Technologies, Saint Petersburg, Russia
| | - R V Orlova
- Russian Research Center for Radiology and Surgical Technologies, Saint Petersburg, Russia; Medical Faculty, Saint Petersburg State University, Saint Petersburg, Russia
| | - S V Petrov
- Kazan State Medical University, Kazan, Russia
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