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Vaquero J, Pavy A, Gonzalez-Sanchez E, Meredith M, Arbelaiz A, Fouassier L. Genetic alterations shaping tumor response to anti-EGFR therapies. Drug Resist Updat 2022; 64:100863. [DOI: 10.1016/j.drup.2022.100863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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2
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Torres-Jiménez J, Esteban-Villarrubia J, Ferreiro-Monteagudo R, Carrato A. Local Treatments in the Unresectable Patient with Colorectal Cancer Metastasis: A Review from the Point of View of the Medical Oncologist. Cancers (Basel) 2021; 13:5938. [PMID: 34885047 PMCID: PMC8656541 DOI: 10.3390/cancers13235938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 12/12/2022] Open
Abstract
For patients with isolated liver metastases from colorectal cancer who are not candidates for potentially curative resections, non-surgical local treatments may be useful. Non-surgical local treatments are classified according to how the treatment is administered. Local treatments are applied directly on hepatic parenchyma, such as radiofrequency, microwave hyperthermia and cryotherapy. Locoregional therapies are delivered through the hepatic artery, such as chemoinfusion, chemoembolization or selective internal radiation with Yttrium 90 radioembolization. The purpose of this review is to describe the different interventional therapies that are available for these patients in routine clinical practice, the most important clinical trials that have tried to demonstrate the effectiveness of each therapy and recommendations from principal medical oncologic societies.
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Affiliation(s)
- Javier Torres-Jiménez
- Medical Oncology Department, University Hospital Ramon y Cajal, 28034 Madrid, Spain; (J.E.-V.); (R.F.-M.)
| | - Jorge Esteban-Villarrubia
- Medical Oncology Department, University Hospital Ramon y Cajal, 28034 Madrid, Spain; (J.E.-V.); (R.F.-M.)
| | - Reyes Ferreiro-Monteagudo
- Medical Oncology Department, University Hospital Ramon y Cajal, 28034 Madrid, Spain; (J.E.-V.); (R.F.-M.)
| | - Alfredo Carrato
- Medical Oncology Department, Ramón y Cajal Health Research Institute (IRYCIS), CIBERONC, Alcalá University, University Hospital Ramon y Cajal, 28034 Madrid, Spain;
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Saizul Z, Siti-Azrin AH, Zakaria AD, Hassan A, Abdul Rahman WFW, Jalil NAC. BRAF V600E and Mismatch Repair Proteins Expression in Sporadic Young-onset Colorectal Cancer in Kelantan, Malaysia. Oman Med J 2021; 36:e284. [PMID: 34367685 PMCID: PMC8311123 DOI: 10.5001/omj.2021.83] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 10/17/2020] [Indexed: 12/02/2022] Open
Abstract
Objectives We sought to determine the immunohistochemistry expression of mismatch repair (MMR) and BRAF V600E proteins in sporadic young-onset colorectal cancer (CRC) and their association with clinicopathological features in the Kelantan population. Methods This was a cross-sectional study of sporadic young-onset CRC over 11 years from 1 January 2006 to 31 December 2017 in Kelantan. Formalin-fixed paraffin-embedded tissue blocks were immunohistochemically stained with antibodies for MMR (MLH1, MSH2, MSH6, and PMS2) and BRAF V600E. These expressions were correlated with clinicopathological parameters. Results Our patient sample included 31 patients with a mean age of 31.5 years. More than half (61.3%) of the patients were women. The majority presented with abdominal pain (41.9%), and 71.0% had a tumor located on the right side of the colon, with 83.9% being moderately differentiated adenocarcinoma. The majority of patients presented at stage IV (54.8%). The most frequent pattern was all MMR protein expressions, which constituted patients in the microsatellite stable group (64.5%). Nine (29.0%) were microsatellite instability (MSI-high), and two (6.5%) were MSI-low. Positive BRAF V600E expression was observed in 83.9% of patients. Only histopathological subtypes revealed a significant association with BRAF V600E positive expression (p = 0.015). Conclusions The majority of sporadic young-onset CRC presented with abdominal pain and advanced cancer stage. Most were microsatellite stable, and most cases showed positive expressions in all MMR markers and BRAF V600E by immunohistochemistry method. This finding will pave the way for further research on this disease.
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Affiliation(s)
- Zubaidah Saizul
- Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Ab Hamid Siti-Azrin
- Unit of Biostatistics and Research Methodology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Andee Dzulkarnaen Zakaria
- Department of Surgery, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Aniza Hassan
- Jabatan Patologi, Hospital Raja Perempuan Zainab II in Kota Bharu, Kelantan, Malaysia
| | - Wan Faiziah Wan Abdul Rahman
- Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Nur Asyilla Che Jalil
- Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
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Colorectal Cancer: From Genetic Landscape to Targeted Therapy. JOURNAL OF ONCOLOGY 2021; 2021:9918116. [PMID: 34326875 PMCID: PMC8277501 DOI: 10.1155/2021/9918116] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/25/2021] [Indexed: 02/08/2023]
Abstract
Colorectal cancer (CRC) is the third most common cancer type and the second cause of death worldwide. The advancement in understanding molecular pathways involved in CRC has led to new classifications based on the molecular characteristics of each tumor and also improved CRC management through the integration of targeted therapy into clinical practice. In this review, we will present the main molecular pathways involved in CRC carcinogenesis, the molecular classifications. The anti-VEGF and anti-EGFR therapies currently used in CRC treatment and those under clinical investigation will also be outlined, as well as the mechanisms of primary and acquired resistance to anti-EGFR monoclonal antibodies (cetuximab and panitumumab). Targeted therapy has led to great improvement in the treatment of metastatic CRC. However, there has been variability in CRC treatment outcomes due to molecular heterogeneity in colorectal tumors, which underscores the need for identifying prognostic and predictive biomarkers for CRC-targeted drugs.
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Benson AB, Venook AP, Al-Hawary MM, Arain MA, Chen YJ, Ciombor KK, Cohen S, Cooper HS, Deming D, Farkas L, Garrido-Laguna I, Grem JL, Gunn A, Hecht JR, Hoffe S, Hubbard J, Hunt S, Johung KL, Kirilcuk N, Krishnamurthi S, Messersmith WA, Meyerhardt J, Miller ED, Mulcahy MF, Nurkin S, Overman MJ, Parikh A, Patel H, Pedersen K, Saltz L, Schneider C, Shibata D, Skibber JM, Sofocleous CT, Stoffel EM, Stotsky-Himelfarb E, Willett CG, Gregory KM, Gurski LA. Colon Cancer, Version 2.2021, NCCN Clinical Practice Guidelines in Oncology. J Natl Compr Canc Netw 2021; 19:329-359. [PMID: 33724754 DOI: 10.6004/jnccn.2021.0012] [Citation(s) in RCA: 674] [Impact Index Per Article: 224.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This selection from the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Colon Cancer focuses on systemic therapy options for the treatment of metastatic colorectal cancer (mCRC), because important updates have recently been made to this section. These updates include recommendations for first-line use of checkpoint inhibitors for mCRC, that is deficient mismatch repair/microsatellite instability-high, recommendations related to the use of biosimilars, and expanded recommendations for biomarker testing. The systemic therapy recommendations now include targeted therapy options for patients with mCRC that is HER2-amplified, or BRAF V600E mutation-positive. Treatment and management of nonmetastatic or resectable/ablatable metastatic disease are discussed in the complete version of the NCCN Guidelines for Colon Cancer available at NCCN.org. Additional topics covered in the complete version include risk assessment, staging, pathology, posttreatment surveillance, and survivorship.
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Affiliation(s)
- Al B Benson
- Robert H. Lurie Comprehensive Cancer Center of Northwestern University
| | - Alan P Venook
- UCSF Helen Diller Family Comprehensive Cancer Center
| | | | | | | | | | - Stacey Cohen
- Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance
| | | | | | - Linda Farkas
- UT Southwestern Simmons Comprehensive Cancer Center
| | | | | | | | | | | | | | - Steven Hunt
- Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine
| | | | | | - Smitha Krishnamurthi
- Case Comprehensive Cancer Center/University Hospitals Seidman Cancer Center and Cleveland Clinic Taussig Cancer Institute
| | | | | | - Eric D Miller
- The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute
| | - Mary F Mulcahy
- Robert H. Lurie Comprehensive Cancer Center of Northwestern University
| | | | | | | | | | - Katrina Pedersen
- Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine
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Nakayama I, Hirota T, Shinozaki E. BRAF Mutation in Colorectal Cancers: From Prognostic Marker to Targetable Mutation. Cancers (Basel) 2020; 12:cancers12113236. [PMID: 33152998 PMCID: PMC7694028 DOI: 10.3390/cancers12113236] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Colorectal cancer with a mutation in an oncogene BRAF has paid much attention, as it comprises a population with dismal prognosis since two decades ago. A series of research since then has successfully changed this malignancy to be treatable with specific treatment. Here we thoroughly overviewed the basic, translational and clinical studies on colorectal cancer with BRAF mutation from a physician’s viewpoint. Accumulating lines of evidence suggest that intervention of the trunk cellular growth signal transduction pathway, namely EGFR-RAS-RAF-MEK-ERK pathway, is a clue to controlling this disease. However, it is not so straightforward. Recent studies unveil the diverse and plastic nature of this signal transduction pathway. We will introduce our endeavor to conquer this condition, based on newly arriving datasets, and discuss how we could open the door to future development of CRC treatment. Abstract The Raf murine sarcoma viral oncogene homolog B (BRAF) mutation is detected in 8–12% of metastatic colorectal cancers (mCRCs) and is strongly correlated with poor prognosis. The recent success of the BEACON CRC study and the development of targeted therapy have led to the determination of BRAF-mutated mCRCs as an independent category. For nearly two decades, a growing body of evidence has established the significance of the BRAF mutation in the development of CRC. Herein, we overview both basic and clinical data relevant to BRAF-mutated CRC, mainly focusing on the development of treatment strategies. This review is organized into eight sections, including clinicopathological features, molecular features, prognosis, the predictive value of anti-epidermal growth factor receptor (EGFR) therapy, resistant mechanisms for BRAF-targeting treatment, the heterogeneity of the BRAF mutation, future perspectives, and conclusions. A characterization of the canonical mitogen-activated protein kinase (MAPK) pathway is essential for controlling this malignancy, and the optimal combination of multiple interventions for treatments remains a point of debate.
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Affiliation(s)
- Izuma Nakayama
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of the Japanese Foundation for Cancer Research (JFCR), Tokyo 135-8550, Japan
- Correspondence: (I.N.); (E.S.); Tel.: +81-3-3520-0111
| | - Toru Hirota
- Department of Experimental Pathology, Cancer Institute of the Japanese Foundation for Cancer Research (JFCR), Tokyo 135-8550, Japan;
| | - Eiji Shinozaki
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of the Japanese Foundation for Cancer Research (JFCR), Tokyo 135-8550, Japan
- Correspondence: (I.N.); (E.S.); Tel.: +81-3-3520-0111
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7
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Levin-Sparenberg E, Bylsma LC, Lowe K, Sangare L, Fryzek JP, Alexander DD. A Systematic Literature Review and Meta-Analysis Describing the Prevalence of KRAS, NRAS, and BRAF Gene Mutations in Metastatic Colorectal Cancer. Gastroenterology Res 2020; 13:184-198. [PMID: 33224365 PMCID: PMC7665856 DOI: 10.14740/gr1167] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 04/05/2019] [Indexed: 12/23/2022] Open
Abstract
Background Tumors of the metastatic colorectal cancer (mCRC) patients that are wildtype (WT) for KRAS or NRAS mutations respond more favorably to anti-epidermal growth factor receptor (EGFR) treatments. Treatment guidelines now recommend that all mCRC patients have WT KRAS and NRAS tumor status confirmed prior to initiating anti-EGFR therapy. Evidence also suggests that BRAF mutations may predict lack of response to anti-EGFR therapy. As such, there is now a need for comprehensive data on the prevalence of KRAS, NRAS, and BRAF mutations among patients with mCRC. Methods A systematic literature review was conducted among studies that described the prevalence of KRAS, NRAS, and BRAF gene mutations in mCRC patients. Observational cohort studies and standard of care arm of randomized clinical trials were included. Random effects meta-analysis models were used to create summary prevalence estimates for each of the mutation types. Subgroup analyses were also conducted to identify potential sources of heterogeneity. Exploratory analyses of overall and progression-free survival by mutation status were also conducted. Results This systematic review and meta-analysis included 275 studies comprising 77,104 mCRC patients. The summary prevalence estimate was 35.9% for KRAS mutations, 7.1% for BRAF mutations, and 4.1% for NRAS mutations. Female patients had significantly more KRAS and BRAF mutations than males, and significant variation by study location was observed for both KRAS and BRAF mutation prevalence. Overall survival was significantly decreased for patients with KRAS, BRAF, and NRAS mutations compared to those with WT tumors. Progression-free survival was also significantly decreased among patients with KRAS and BRAF mutations. Conclusions KRAS, NRAS, and BRAF mutation statuses in patients with mCRC are important predictors of treatment success and may also have prognostic value. In this paper we present the first systematic and comprehensive literature review and meta-analysis of the prevalence of KRAS, BRAF, and NRAS mutations and demonstrate the prognostic impact of mutation status on survival.
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Affiliation(s)
| | | | - Kimberly Lowe
- Amgen, Inc., 1 Amgen Center Drive, Mailstop D2262, Thousand Oaks, CA 91320, USA
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Vera R, González-Flores E, Rubio C, Urbano J, Valero Camps M, Ciampi-Dopazo JJ, Orcajo Rincón J, Morillo Macías V, Gomez Braco MA, Suarez-Artacho G. Multidisciplinary management of liver metastases in patients with colorectal cancer: a consensus of SEOM, AEC, SEOR, SERVEI, and SEMNIM. Clin Transl Oncol 2019; 22:647-662. [PMID: 31359336 DOI: 10.1007/s12094-019-02182-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 07/08/2019] [Indexed: 12/12/2022]
Abstract
Colorectal cancer (CRC) has the second-highest tumor incidence and is a leading cause of death by cancer. Nearly 20% of patients with CRC will have metastases at the time of diagnosis, and more than 50% of patients with CRC develop metastatic disease during the course of their disease. A group of experts from the Spanish Society of Medical Oncology, the Spanish Association of Surgeons, the Spanish Society of Radiation Oncology, the Spanish Society of Vascular and Interventional Radiology, and the Spanish Society of Nuclear Medicine and Molecular Imaging met to discuss and provide a multidisciplinary consensus on the management of liver metastases in patients with CRC. The group defined the different scenarios in which the disease can present: fit or unfit patients with resectable liver metastases, patients with potential resectable liver metastases, and patients with unresectable liver metastases. Within each scenario, the different strategies and therapeutic approaches are discussed.
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Affiliation(s)
- R Vera
- Medical Oncology, Complejo Hospitalario de Navarra, Calle Irunlarrea, 3, 31008, Pamplona, Navarra, Spain.
| | | | - C Rubio
- Radiation Oncology Department, University Hospital HM Sanchinarro, Madrid, Spain
| | - J Urbano
- Vascular and Interventional Radiology, Vithas Hospitals Group, Madrid, Spain
| | - M Valero Camps
- Nuclear Medicine, Clínica Rotger (Quiron Salud), Palma de Mallorca, Spain
| | - J J Ciampi-Dopazo
- Interventional Radiology Unit, Complejo Hospitalario de Toledo, Toledo, Spain
| | - J Orcajo Rincón
- Nuclear Medicine, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - V Morillo Macías
- Radiation Oncology, Hospital Provincial de Castellón, Castellón, Spain
| | - M A Gomez Braco
- Hepatobiliary and Liver Transplantation Unit, University Hospital Virgen del Rocío, Sevilla, Spain
| | - G Suarez-Artacho
- Hepatobiliary and Liver Transplantation Unit, University Hospital Virgen del Rocío, Sevilla, Spain
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9
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Fleitas-Kanonnikoff T, Martinez‐Ciarpaglini C, Ayala J, Gauna C, Denis R, Yoffe I, Sforza S, Martínez MT, Pomata A, Ibarrola‐Villava M, Arevshatyan S, Burriel V, Boscá D, Pastor O, Ferrer‐Martinez A, Carrasco F, Mongort C, Navarro S, Ribas G, Cervantes A. Molecular profile in Paraguayan colorectal cancer patients, towards to a precision medicine strategy. Cancer Med 2019; 8:3120-3130. [PMID: 31059199 PMCID: PMC6558499 DOI: 10.1002/cam4.2191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 12/24/2022] Open
Abstract
Somatic mutation analysis and evaluation of microsatellite instability (MSI) have become mandatory for selecting personalized therapy strategies for advanced colorectal cancer and are not available as routine methods in Paraguay. The aims of this study were to analyze the molecular profile as well as the microsatellite status in a series of advanced colorectal patients from two public hospitals from Paraguay, to introduce these methodologies in the routine practice to guide the therapeutic decisions. Thirty‐six patients diagnosed with advanced colorectal cancer from two referent public hospitals from Paraguay were recruited from May 2017 to February 2018. Sequenom Mass spectrometry, Oncocarta Panel V.1 was applied to analyze the mutational profile from formalin‐fixed paraffin‐embedded samples. The microsatellite status was tested by immunohistochemistry (IHC). The mean age of the patients was 52 years with a range from 20 to 74 years. Eighty‐three percent of the patients included in the study have advanced‐stage tumors at the moment of the diagnosis. Sixteen patients (44.4%) were wild‐type for all the oncogene regions analyzed with the Oncocarta panel. Thirty‐two hot‐spot pathogenic variants on seven oncogenes, among 20 patients (55.6%), were identified, including KRAS, NRAS, BRAF, PI3KCA, FGFR, epidermal growth factor receptor, and PDGFRA. Moreover, 14 (38.8%) of these patients presented pathogenic variants in KRAS/NRAS or BRAF genes that have implications in the clinical practice decisions. Five patients (14%) presented MSI. The IHC study for microsatellite status and the molecular profile analysis through Sequenom mass spectrometry are feasible and useful methods, due to identify those patient candidates for targeted therapies and for the budgetary calculations of the National Health Plans.
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Affiliation(s)
- Tania Fleitas-Kanonnikoff
- Department of Medical OncologyCIBERONCBiomedical Research Institute INCLIVAUniversity of ValenciaValenciaSpain
| | | | - Josefina Ayala
- Department of Medical OncologyInstituto Nacional del Cáncer (INCAN)CapiatáParaguay
| | - Cinthia Gauna
- Department of Medical OncologyInstituto Nacional del Cáncer (INCAN)CapiatáParaguay
| | - Rita Denis
- Department of Medical OncologyHospital de Clínicas (HC)Universidad Nacional de AsunciónSan LorenzoParaguay
| | - Ita Yoffe
- Department of Medical OncologyHospital de Clínicas (HC)Universidad Nacional de AsunciónSan LorenzoParaguay
| | - Silvia Sforza
- Department of Medical OncologyInstituto Nacional del Cáncer (INCAN)CapiatáParaguay
| | | | - Alicia Pomata
- Department of PathologyInstituto Nacional del Cáncer (INCAN)CapiatáParaguay
| | - Maider Ibarrola‐Villava
- Department of Medical OncologyCIBERONCBiomedical Research Institute INCLIVAUniversity of ValenciaValenciaSpain
| | | | | | | | - Oscar Pastor
- Gembiosoft‐Universidad Politécnica de ValenciaValenciaSpain
| | - Ana Ferrer‐Martinez
- Department of Medical OncologyCIBERONCBiomedical Research Institute INCLIVAUniversity of ValenciaValenciaSpain
| | - Francisca Carrasco
- Department of Medical OncologyCIBERONCBiomedical Research Institute INCLIVAUniversity of ValenciaValenciaSpain
| | - Cristina Mongort
- Department of PathologyCIBERONCBiomedical Research Institute INCLIVAUniversity of ValenciaValenciaSpain
| | - Samuel Navarro
- Department of PathologyCIBERONCBiomedical Research Institute INCLIVAUniversity of ValenciaValenciaSpain
| | - Gloria Ribas
- Department of Medical OncologyCIBERONCBiomedical Research Institute INCLIVAUniversity of ValenciaValenciaSpain
| | - Andres Cervantes
- Department of Medical OncologyCIBERONCBiomedical Research Institute INCLIVAUniversity of ValenciaValenciaSpain
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Goel G. Molecular characterization and biomarker identification in colorectal cancer: Toward realization of the precision medicine dream. Cancer Manag Res 2018; 10:5895-5908. [PMID: 30510457 PMCID: PMC6250110 DOI: 10.2147/cmar.s162967] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Colorectal cancer (CRC) is a major public health problem, both in the USA and globally. Over the past 20 years, significant advances have been made in the treatment of patients with metastatic CRC (mCRC). Recent efforts in the field of biomarkers have focused on the development of molecular diagnostics to define the subset of patients with mCRC that is likely to derive most benefit from anti-EGFR therapy. Herein, we review the recent advancements in molecular stratification of CRC and the role of current as well as emerging biomarkers in this disease. It is now clear that the presence of activating mutations in the KRAS and NRAS genes serves as reliable predictive markers for resistance to anti-EGFR therapy in mCRC. It is also clear that further improvements in the survival of mCRC patients will probably be made possible only with identification of new predictive molecular biomarkers and their evaluation using rational and innovative clinical trials. The recent advances in DNA sequencing technology and "omics"-based approaches have provided promising new strategies for the development of novel molecular biomarkers in this disease.
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Affiliation(s)
- Gaurav Goel
- Division of Hematology-Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA,
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11
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Yang Y, Wang D, Jin L, Wu G, Bai Z, Wang J, Yao H, Zhang Z. Prognostic value of the combination of microsatellite instability and BRAF mutation in colorectal cancer. Cancer Manag Res 2018; 10:3911-3929. [PMID: 30310312 PMCID: PMC6165775 DOI: 10.2147/cmar.s169649] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Purpose The aim of this study was to investigate the prognostic value of the combination of microsatellite instability (MSI) and BRAF V600E mutation in colorectal cancer (CRC). Materials and methods We compare the prognosis difference among CRC patients with four subtypes according to MSI and BRAF mutation, ie, microsatellite stable/BRAF wild type (MSS/BRAFwt), MSS/BRAF mutation (MSS/BRAFmut), MSI/BRAFwt, and MSI/BRAFmut, by pooling the previous related reports and public available data sets till December 2017 for the first time. Results Twenty-seven independent studies comprising 24,067 CRC patients were included. Meta-analysis suggested that, compared with MSS/BRAFwt subtype, MSS/BRAFmut was associated with shorter overall survival (OS) (N=25, HR = 2.018, 95% CI = 1.706-2.388, P=2.220E-16), while there was a trend of association of MSI/BRAFmut with OS (N=13, HR = 1.324, 95% CI = 0.938-1.868, P=1.096E-01) and no association of MSI/BRAFwt with OS (N=17, HR = 0.996, 95% CI = 0.801-1.240, P=9.761E-01). Compared with MSI/ BRAFwt subtype, MSI/BRAFmut was a poor factor for OS (N=22, HR = 1.470, 95% CI = 1.243-1.740, P=7.122E-06). Compared with MSS/BRAFmut subtype, both MSI/BRAFwt (N=11, HR = 0.560, 95% CI = 0.433-0.725, P=1.034E-05) and MSI/BRAFmut (N=16, HR = 0.741, 95% CI = 0.567-0.968, P=2.781E-02) were favorable for OS. Subgroup analysis revealed similar results in all subgroups except the subgroup of stage IV cancer, in which MSI showed poor effects on OS in BRAF wild-type patients (N=6, HR = 1.493, 95% CI = 1.187-1.879, P=6.262E-04) but not in BRAF-mutated patients (N=5, HR = 1.143, 95% CI = 0.789-1.655, P=4.839E-01). Meta-analysis regression and test of interaction revealed no interaction of MSI with BRAF mutation when evaluating the associations of MSI/BRAF mutation subtypes with OS in CRC. Conclusion Among the four subtypes according to MSI and BRAF mutation, MSS/BRAFmut was a poor prognostic factor, while MSS/BRAFwt and MSI/BRAFwt were comparable and favorable and MSI/BRAFmut was moderate in CRC. The combination of MSI/BRAF mutations could facilitate the planning of individualized treatment strategies and prognosis improvement in CRC.
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Affiliation(s)
- Yingchi Yang
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China,
| | - Dong Wang
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China,
| | - Lan Jin
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China,
| | - Guocong Wu
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China,
| | - Zhigang Bai
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China,
| | - Jin Wang
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China,
| | - Hongwei Yao
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China,
| | - Zhongtao Zhang
- Department of General Surgery, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China,
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12
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Antoniotti C, Ongaro E, Falcone A, Cremolini C. The Winding Roadmap of Biomarkers toward Clinic: Lessons from Predictors of Resistance to Anti-EGFRs in Metastatic Colorectal Cancer. Int J Mol Sci 2018; 19:E2298. [PMID: 30081606 PMCID: PMC6121538 DOI: 10.3390/ijms19082298] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 01/06/2023] Open
Abstract
In the evolving molecular landscape of metastatic colorectal cancer, optimizing available tools to select patients to receive anti-epidermal growth factor receptor (anti-EGFR) monoclonal antibodies is a modern challenge of colorectal oncologists. Several molecular biomarkers have been investigated in recent years as potential predictors of resistance to anti-EGFR agents in preclinical and clinical retrospective series. Nevertheless, none of them have been implemented in clinical practice due to the lack of a formal prospective demonstration. Here, we propose a literature review of molecular alterations associated with resistance to anti-EGFRs, underlining the reasons why their roadmap from laboratories to clinics was prematurely halted.
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Affiliation(s)
- Carlotta Antoniotti
- Department of Oncology, University Hospital of Pisa, 56126 Pisa, Italy.
- Department of Translational Research and New Technologies in Medicine, University of Pisa, 56126 Pisa, Italy.
| | - Elena Ongaro
- Department of Oncology, University Hospital of Pisa, 56126 Pisa, Italy.
- Department of Translational Research and New Technologies in Medicine, University of Pisa, 56126 Pisa, Italy.
- Department of Oncology, Azienda Sanitaria Universitaria Integrata S. Maria della Misericordia, 33100 Udine, Italy.
| | - Alfredo Falcone
- Department of Oncology, University Hospital of Pisa, 56126 Pisa, Italy.
- Department of Translational Research and New Technologies in Medicine, University of Pisa, 56126 Pisa, Italy.
| | - Chiara Cremolini
- Department of Oncology, University Hospital of Pisa, 56126 Pisa, Italy.
- Department of Translational Research and New Technologies in Medicine, University of Pisa, 56126 Pisa, Italy.
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13
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Lai E, Pretta A, Impera V, Mariani S, Giampieri R, Casula L, Pusceddu V, Coni P, Fanni D, Puzzoni M, Demurtas L, Ziranu P, Faa G, Scartozzi M. BRAF-mutant colorectal cancer, a different breed evolving. Expert Rev Mol Diagn 2018; 18:499-512. [DOI: 10.1080/14737159.2018.1470928] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Eleonora Lai
- Medical Oncology, Sapienza-University of Rome, Rome, Italy
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
| | - Andrea Pretta
- Medical Oncology, Sapienza-University of Rome, Rome, Italy
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
| | - Valentino Impera
- Medical Oncology, Sapienza-University of Rome, Rome, Italy
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
| | - Stefano Mariani
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
| | - Riccardo Giampieri
- Medical Oncology Unit, University Hospital and Università Politecnica delle Marche, Ancona, Italy
| | - Laura Casula
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
| | - Valeria Pusceddu
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
| | - Pierpaolo Coni
- Department of Surgical Sciences, Division of Pathology, University of Cagliari, Ancona, Italy
| | - Daniela Fanni
- Department of Surgical Sciences, Division of Pathology, University of Cagliari, Ancona, Italy
| | - Marco Puzzoni
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
| | - Laura Demurtas
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
| | - Pina Ziranu
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
| | - Gavino Faa
- Department of Surgical Sciences, Division of Pathology, University of Cagliari, Ancona, Italy
| | - Mario Scartozzi
- Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy
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14
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Xu Y, Xu Q, Sun H, Liu T, Shi K, Wang W. Could IVIM and ADC help in predicting the KRAS status in patients with rectal cancer? Eur Radiol 2018; 28:3059-3065. [PMID: 29450716 DOI: 10.1007/s00330-018-5329-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/08/2018] [Accepted: 01/12/2018] [Indexed: 12/13/2022]
Abstract
PURPOSE To evaluate the diagnostic potential of DW-MRI relative parameters for differentiation of rectal cancers with different Kirsten rat sarcoma viral oncogene homologue (KRAS) mutation status. METHODS Fifty-one patients with rectal cancer underwent diffusion-weighted MR imaging with eight b values. ADCs (including Max-ADC, Min-ADC and Mean-ADC) and IVIM parameters (D, pure diffusion; f, perfusion fraction; D*, pseudodiffusion coefficient) were respectively calculated by mono- and bi-exponential analysis. Patients were stratified into two groups: KRAS wild type and mutant. The DW-MRI-derived parameters between the KRAS wild-type group and KRAS mutant group were compared using the Mann-Whitney U test. Receiver-operating characteristic (ROC) analysis of discrimination between KRAS wild-type and KRAS mutant rectal cancer was performed for the DW-MRI-derived parameters. RESULTS Max-ADC, Mean-ADC and D values were significantly lower in the KRAS mutant group than in the KRAS wild-type group, whereas a higher D* value was demonstrated in the KRAS mutant group. According to the ROC curve, Mean-ADC and D* values showed moderate diagnostic significance with the AUC values of 0.756 and 0.710, respectively. The cut-off values for Mean-ADC and D* were 1.43 × 10-3mm2/s and 26.58 × 10-3mm2/s, respectively. CONCLUSION Rectal cancers had distinctive diffusion/perfusion characteristics in different KRAS mutation statuses. The DW-MRI-derived parameters, specifically Mean-ADC and D*, show a moderate diagnostic significance for KRAS status. KEY POINTS • Rectal cancers with different KRAS mutation statuses demonstrated distinctive diffusion/perfusion characteristics. • Max-ADC, Mean-ADC and D values were lower in the KRAS mutant group. • A higher D* value was demonstrated in the KRAS mutant group. • IVIM-DW MRI may potentially help preoperative KRAS mutant status prediction.
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Affiliation(s)
- Yanyan Xu
- Department of Radiology, China-Japan Friendship Hospital, No.2 Yinghua East Street, Chaoyang District, Beijing, 100029, China
| | - Qiaoyu Xu
- Department of Radiology, China-Japan Friendship Hospital, No.2 Yinghua East Street, Chaoyang District, Beijing, 100029, China
| | - Hongliang Sun
- Department of Radiology, China-Japan Friendship Hospital, No.2 Yinghua East Street, Chaoyang District, Beijing, 100029, China.
| | - Tongxi Liu
- Department of Radiology, China-Japan Friendship Hospital, No.2 Yinghua East Street, Chaoyang District, Beijing, 100029, China
| | | | - Wu Wang
- Department of Radiology, China-Japan Friendship Hospital, No.2 Yinghua East Street, Chaoyang District, Beijing, 100029, China
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15
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Abstract
Concurrent with an expansion in the number of agents available for the treatment of advanced CRC, there has been an increase in our understanding of selection biomarkers to optimize the management of patients with this disease. For CRC patients being considered for anti-EGFR therapy, expanded RAS testing is the standard of care to determine the subset of patients who can benefit from cetuximab or panitumumab in conjunction with chemotherapy. A small fraction of patients have HER2 amplification where emerging data suggest treatment with drugs targeting this alteration. Although advanced CRC patients who harbor the BRAF V600E mutation have a poorer prognosis, they are eligible for combinatorial therapy targeting EGFR/BRAF or BRAF/MEK within the MAP kinase signaling pathway. Once primarily thought to be a negative prognostic marker, BRAF V600E mutation is now considered as a positive predictive factor with an opportunity for clinical intervention. A growing body of evidence also supports MSI testing as clinical benefits with immune checkpoint blockade by cancer immunotherapy have been demonstrated in MSI-high patients whose tumors exhibit high mutational burden. It has been established that UGT1A1*28 polymorphism is associated with irinotecan toxicity, but this test is rarely performed as the management strategy has not been identified. No established predictive biomarker for anti-VEGF therapy has yet to be discovered.It is becoming increasingly apparent that our growing understanding of biomarkers is revolutionizing and improving our strategies in the treatment of advanced CRC. Traditional nonselective cytotoxic chemotherapy is gradually being augmented and even in some cases supplanted by selective targeted agents based on our increasing understanding of tumor signaling and mechanism at the molecular level. The prospect of personalized medicine in directing treatment approaches that are optimally beneficial for patients brings tremendous excitement to the growing field of cancer therapeutics. As discussed in this chapter, the concurrent development of molecular biomarkers with new treatment strategies holds great promise of precision medicine in improving outcomes for patients with advanced CRC.
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Affiliation(s)
- Patrick S Lin
- Division of Hematology/Oncology, Department of Internal Medicine, University of California Davis Comprehensive Cancer Center, Sacramento, CA, USA
| | - Thomas J Semrad
- Division of Hematology/Oncology, Department of Internal Medicine, University of California Davis Comprehensive Cancer Center, Sacramento, CA, USA.
- Gene Upshaw Memorial Tahoe Forest Cancer Center, Truckee, CA, USA.
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16
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Ampollini L, Gnetti L, Goldoni M, Viani L, Faedda E, Campanini N, Caruana P, Crafa P, Negri F, Pucci F, Leonardi F, Ventura L, Balestra V, Braggio C, Bocchialini G, Del Rio P, Silini EM, Carbognani P, Rusca M. Pulmonary metastasectomy for colorectal cancer: analysis of prognostic factors affecting survival. J Thorac Dis 2017; 9:S1282-S1290. [PMID: 29119016 DOI: 10.21037/jtd.2017.07.100] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Background Pulmonary metastasectomy is considered a standard procedure in the treatment of metastatic colorectal cancer (CRC). Different prognostic factors including multiple metastatic nodules, the presence of extra-pulmonary metastases and BRAF mutation status have been associated with poor survival. The aim of this study was to evaluate which factors influenced survival in CRC patients undergoing pulmonary metastasectomy by studying primary tumors and pulmonary metastases. Methods All patients treated for primary CRC who presented pulmonary metastases in a 10-year period were considered (group A). A control group treated for primary CRC who did not develop any pulmonary or extra-pulmonary metastases was taken for comparison (group B). Different prognostic factors including gender, age, tumor location, histological type, inflammatory infiltrate, BRAF, CDX2 and extra-pulmonary metastases were analyzed. Overall survival (OS) and patients' survival after pulmonary metastasectomy were also considered. Results Fifty-four patients were evaluated in group A and twenty-three in group B. In group A, BRAF immunohistochemistry did not significantly differ between primary tumors and pulmonary metastases; no difference of BRAF expression was found between group A and B. Even the expression of CDX2 was not significantly different in primary tumors and metastases. Similarly, in group B CDX2 did not significantly differ from primary CRC of group A. The most significant prognostic factor was the presence of extra-pulmonary metastases. Patients with extra-pulmonary metastases experienced a significant shorter survival compared to patients with pulmonary metastases alone (P=0.001 with log-rank test vs. P=0.003 with univariate Cox regression). Interestingly, patients with right pulmonary metastases presented a significant longer survival than those with left pulmonary metastases (P=0.027 with log-rank test vs. 0.04 with univariate Cox regression). Conclusions The main prognostic factor associated with poor survival after lung resection of CRC metastases is a history of extra-pulmonary metastases. BRAF and CDX2 did not have a significant role in this small series of patients.
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Affiliation(s)
- Luca Ampollini
- Thoracic Surgery, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Letizia Gnetti
- Pathology Unit, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Matteo Goldoni
- Clinical and Experimental Medicine, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Lorenzo Viani
- General Surgery, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Elisabetta Faedda
- Pathology Unit, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Nicoletta Campanini
- Pathology Unit, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Pietro Caruana
- Pathology Unit, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Pellegrino Crafa
- Pathology Unit, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Francesca Negri
- Medical Oncology, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Francesca Pucci
- Medical Oncology, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Francesco Leonardi
- Medical Oncology, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Luigi Ventura
- Thoracic Surgery, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Valeria Balestra
- Thoracic Surgery, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Cesare Braggio
- Thoracic Surgery, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Giovanni Bocchialini
- Thoracic Surgery, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Paolo Del Rio
- General Surgery, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Enrico Maria Silini
- Pathology Unit, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Paolo Carbognani
- Thoracic Surgery, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
| | - Michele Rusca
- Thoracic Surgery, Department of Medicine and Surgery, University Hospital of Parma, Parma, Italy
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17
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van Brummelen EMJ, de Boer A, Beijnen JH, Schellens JHM. BRAF Mutations as Predictive Biomarker for Response to Anti-EGFR Monoclonal Antibodies. Oncologist 2017; 22:864-872. [PMID: 28576857 PMCID: PMC5507642 DOI: 10.1634/theoncologist.2017-0031] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 02/22/2017] [Indexed: 12/14/2022] Open
Abstract
Recently, the American Society of Clinical Oncology (ASCO) and the European Society for Medical Oncology (ESMO) recommended that patients with epidermal growth factor receptor (EGFR)-expressing metastatic colorectal cancer could be treated with anti-EGFR monoclonal antibodies (mAbs) cetuximab and panitumumab only in absence of Rat-Sarcoma (RAS) mutations. In addition to the previously established biomarker Kirsten rat sarcoma viral oncogene homolog (KRAS) exon 2, cumulative evidence also shows that patients whose tumors harbor KRAS exons 3 or 4 and neuroblastoma rat-sarcoma viral oncogene homolog (NRAS) exons 2, 3, and 4 mutations are found unlikely to benefit from anti-EGFR treatment.In line with the resistance of RAS mutated (mt) tumors, treatment response in BRAFmt tumors may also be altered given their important role in the EGFR signaling pathway. However, BRAF is not recommended as predictive biomarker yet because the evidence for the impact of BRAF mutations on treatment outcome is considered insufficient.This article summarizes the evidence for the impact of BRAF mutations on treatment outcome of anti-EGFR mAbs. Based on a review of literature, eight meta-analyses were included that consistently show that patients with BRAF mutations have a lack of treatment benefit of anti-EGFR mAbs. After discussing the quality and quantity of available evidence, we conclude that evidence is stronger than suggested by ESMO and ASCO. Additionally, we highlight that the quality of evidence for BRAF is even higher than for extended RAS as a biomarker. We therefore advise ESMO and ASCO to reconsider BRAF status as a predictive biomarker for response. IMPLICATIONS FOR PRACTICE In metastatic colorectal cancer (mCRC), therapy with anti-epidermal growth factor receptor (EGFR) monoclonal antibodies cetuximab and panitumumab is indicated in absence of RAS mutations. Cumulative evidence shows that patients with BRAF mutations, who comprise 10% of the mCRC population, do not benefit from anti-EGFR-antibody treatment. Although guidelines state that evidence for BRAF as a predictive marker is insufficient, we highlight that the quality and quantity of evidence is higher than suggested. We therefore encourage the use of BRAF as a predictive marker in order to exclude patients from therapy for whom limited treatment benefit is expected.
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Affiliation(s)
- Emilie M J van Brummelen
- Department of Clinical Pharmacology, Amsterdam, The Netherlands
- Department of Molecular Pathology, Amsterdam, The Netherlands
| | - Anthonius de Boer
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Jos H Beijnen
- Pharmacy The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Jan H M Schellens
- Department of Clinical Pharmacology, Amsterdam, The Netherlands
- Department of Molecular Pathology, Amsterdam, The Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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18
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Sepulveda AR, Hamilton SR, Allegra CJ, Grody W, Cushman-Vokoun AM, Funkhouser WK, Kopetz SE, Lieu C, Lindor NM, Minsky BD, Monzon FA, Sargent DJ, Singh VM, Willis J, Clark J, Colasacco C, Bryan Rumble R, Temple-Smolkin R, B Ventura C, Nowak JA. Molecular Biomarkers for the Evaluation of Colorectal Cancer: Guideline From the American Society for Clinical Pathology, College of American Pathologists, Association for Molecular Pathology, and American Society of Clinical Oncology. Arch Pathol Lab Med 2017; 141:625-657. [PMID: 28165284 DOI: 10.5858/arpa.2016-0554-cp] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVES - To develop evidence-based guideline recommendations through a systematic review of the literature to establish standard molecular biomarker testing of colorectal cancer (CRC) tissues to guide epidermal growth factor receptor (EGFR) therapies and conventional chemotherapy regimens. METHODS - The American Society for Clinical Pathology, College of American Pathologists, Association for Molecular Pathology, and American Society of Clinical Oncology convened an expert panel to develop an evidence-based guideline to establish standard molecular biomarker testing and guide therapies for patients with CRC. A comprehensive literature search that included more than 4,000 articles was conducted. RESULTS - Twenty-one guideline statements were established. CONCLUSIONS - Evidence supports mutational testing for EGFR signaling pathway genes, since they provide clinically actionable information as negative predictors of benefit to anti-EGFR monoclonal antibody therapies for targeted therapy of CRC. Mutations in several of the biomarkers have clear prognostic value. Laboratory approaches to operationalize CRC molecular testing are presented.
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Affiliation(s)
- Antonia R Sepulveda
- From the 1 Department of Pathology and Cell Biology, Columbia University, New York, NY
| | | | - Carmen J Allegra
- 5 Division of Hematology and Oncology, University of Florida Medical Center, Gainesville
| | - Wayne Grody
- 6 Departments of Pathology and Laboratory Medicine, Pediatrics, and Human Genetics, UCLA Medical Center, Los Angeles, CA
| | | | - William K Funkhouser
- 8 Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill
| | | | - Christopher Lieu
- 9 Division of Medical Oncology, University of Colorado Denver School of Medicine, Denver
| | | | - Bruce D Minsky
- 4 Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston
| | | | - Daniel J Sargent
- 12 Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | | | - Joseph Willis
- 14 Department of Pathology, Case Western Reserve University, Cleveland, OH
| | - Jennifer Clark
- 15 ASCP Institute for Science, Technology, and Policy, American Society for Clinical Pathology, Washington, DC
| | - Carol Colasacco
- 16 Laboratory and Pathology Quality Center, College of American Pathologists, Northfield, IL
| | - R Bryan Rumble
- 17 American Society of Clinical Oncology, Alexandria, VA
| | | | - Christina B Ventura
- 16 Laboratory and Pathology Quality Center, College of American Pathologists, Northfield, IL
| | - Jan A Nowak
- From the 1 Department of Pathology and Cell Biology, Columbia University, New York, NY
- 2 Department of Pathology
- 3 Department of Gastrointestinal (GI) Medical Oncology
- 4 Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston
- 5 Division of Hematology and Oncology, University of Florida Medical Center, Gainesville
- 6 Departments of Pathology and Laboratory Medicine, Pediatrics, and Human Genetics, UCLA Medical Center, Los Angeles, CA
- 7 Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha
- 8 Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill
- 9 Division of Medical Oncology, University of Colorado Denver School of Medicine, Denver
- 10 Department of Medical Genetics, Mayo Clinic, Scottsdale, AZ
- 11 Castle Biosciences, Friendswood, TX
- 12 Department of Health Sciences Research, Mayo Clinic, Rochester, MN
- 13 Biocept, San Diego, CA
- 14 Department of Pathology, Case Western Reserve University, Cleveland, OH
- 15 ASCP Institute for Science, Technology, and Policy, American Society for Clinical Pathology, Washington, DC
- 16 Laboratory and Pathology Quality Center, College of American Pathologists, Northfield, IL
- 17 American Society of Clinical Oncology, Alexandria, VA
- 18 Association for Molecular Pathology, Bethesda, MD
- 19 Department of Pathology and Laboratory Medicine, Roswell Park Cancer Institute, Buffalo, NY
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19
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Sepulveda AR, Hamilton SR, Allegra CJ, Grody W, Cushman-Vokoun AM, Funkhouser WK, Kopetz SE, Lieu C, Lindor NM, Minsky BD, Monzon FA, Sargent DJ, Singh VM, Willis J, Clark J, Colasacco C, Rumble RB, Temple-Smolkin R, Ventura CB, Nowak JA. Molecular Biomarkers for the Evaluation of Colorectal Cancer. Am J Clin Pathol 2017; 147:221-260. [PMID: 28165529 PMCID: PMC7263311 DOI: 10.1093/ajcp/aqw209] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Objectives: To develop evidence-based guideline recommendations through a systematic review of the literature to establish standard molecular biomarker testing of colorectal cancer (CRC) tissues to guide epidermal growth factor receptor (EGFR) therapies and conventional chemotherapy regimens.
Methods: The American Society for Clinical Pathology, College of American Pathologists, Association for Molecular Pathology, and American Society of Clinical Oncology convened an expert panel to develop an evidence-based guideline to establish standard molecular biomarker testing and guide therapies for patients with CRC. A comprehensive literature search that included more than 4,000 articles was conducted.
Results: Twenty-one guideline statements were established.
Conclusions: Evidence supports mutational testing for EGFR signaling pathway genes, since they provide clinically actionable information as negative predictors of benefit to anti-EGFR monoclonal antibody therapies for targeted therapy of CRC. Mutations in several of the biomarkers have clear prognostic value. Laboratory approaches to operationalize CRC molecular testing are presented.
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Affiliation(s)
- Antonia R. Sepulveda
- From theDepartment of Pathology and Cell Biology, Columbia University, New York, NY; Departments of
| | | | - Carmen J. Allegra
- Division of Hematology and Oncology, University of Florida Medical Center, Gainesville
| | - Wayne Grody
- Departments of Pathology and Laboratory Medicine, Pediatrics, and Human Genetics UCLA Medical Center, Los Angeles, CA
| | | | - William K. Funkhouser
- Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill
| | | | - Christopher Lieu
- Division of Medical Oncology, University of Colorado Denver School of Medicine, Denver
| | | | - Bruce D. Minsky
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston
| | | | | | | | - Joseph Willis
- Department of Pathology, Case Western Reserve University, Cleveland, OH
| | - Jennifer Clark
- ASCP Institute for Science, Technology, and Policy, American Society for Clinical Pathology, Washington, DC
| | - Carol Colasacco
- Laboratory and Pathology Quality Center, College of American Pathologists, Northfield, IL
| | | | | | - Christina B. Ventura
- Laboratory and Pathology Quality Center, College of American Pathologists, Northfield, IL
| | - Jan A. Nowak
- Department of Pathology and Laboratory Medicine, Roswell Park Cancer Institute, Buffalo, NY
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20
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Sepulveda AR, Hamilton SR, Allegra CJ, Grody W, Cushman-Vokoun AM, Funkhouser WK, Kopetz SE, Lieu C, Lindor NM, Minsky BD, Monzon FA, Sargent DJ, Singh VM, Willis J, Clark J, Colasacco C, Rumble RB, Temple-Smolkin R, Ventura CB, Nowak JA. Molecular Biomarkers for the Evaluation of Colorectal Cancer: Guideline From the American Society for Clinical Pathology, College of American Pathologists, Association for Molecular Pathology, and American Society of Clinical Oncology. J Mol Diagn 2017; 19:187-225. [PMID: 28185757 PMCID: PMC5971222 DOI: 10.1016/j.jmoldx.2016.11.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 11/07/2016] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES To develop evidence-based guideline recommendations through a systematic review of the literature to establish standard molecular biomarker testing of colorectal cancer (CRC) tissues to guide epidermal growth factor receptor (EGFR) therapies and conventional chemotherapy regimens. METHODS The American Society for Clinical Pathology, College of American Pathologists, Association for Molecular Pathology, and American Society of Clinical Oncology convened an expert panel to develop an evidence-based guideline to establish standard molecular biomarker testing and guide therapies for patients with CRC. A comprehensive literature search that included more than 4,000 articles was conducted. RESULTS Twenty-one guideline statements were established. CONCLUSIONS Evidence supports mutational testing for EGFR signaling pathway genes, since they provide clinically actionable information as negative predictors of benefit to anti-EGFR monoclonal antibody therapies for targeted therapy of CRC. Mutations in several of the biomarkers have clear prognostic value. Laboratory approaches to operationalize CRC molecular testing are presented. Key Words: Molecular diagnostics; Gastrointestinal; Histology; Genetics; Oncology.
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Affiliation(s)
- Antonia R Sepulveda
- Department of Pathology and Cell Biology, Columbia University, New York, NY.
| | - Stanley R Hamilton
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston
| | - Carmen J Allegra
- Division of Hematology and Oncology, University of Florida Medical Center, Gainesville
| | - Wayne Grody
- Departments of Pathology and Laboratory Medicine, Pediatrics, and Human Genetics, UCLA Medical Center, Los Angeles, CA
| | | | - William K Funkhouser
- Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill
| | - Scott E Kopetz
- Department of Gastrointestinal (GI) Medical Oncology, University of Texas MD Anderson Cancer Center, Houston
| | - Christopher Lieu
- Division of Medical Oncology, University of Colorado Denver School of Medicine, Denver
| | | | - Bruce D Minsky
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston
| | | | - Daniel J Sargent
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | | | - Joseph Willis
- Department of Pathology, Case Western Reserve University, Cleveland, OH
| | - Jennifer Clark
- ASCP Institute for Science, Technology, and Policy, American Society for Clinical Pathology, Washington, DC
| | - Carol Colasacco
- Laboratory and Pathology Quality Center, College of American Pathologists, Northfield, IL
| | | | | | - Christina B Ventura
- Laboratory and Pathology Quality Center, College of American Pathologists, Northfield, IL
| | - Jan A Nowak
- Department of Pathology and Laboratory Medicine, Roswell Park Cancer Institute, Buffalo, NY
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21
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Sepulveda AR, Hamilton SR, Allegra CJ, Grody W, Cushman-Vokoun AM, Funkhouser WK, Kopetz SE, Lieu C, Lindor NM, Minsky BD, Monzon FA, Sargent DJ, Singh VM, Willis J, Clark J, Colasacco C, Rumble RB, Temple-Smolkin R, Ventura CB, Nowak JA. Molecular Biomarkers for the Evaluation of Colorectal Cancer: Guideline From the American Society for Clinical Pathology, College of American Pathologists, Association for Molecular Pathology, and the American Society of Clinical Oncology. J Clin Oncol 2017; 35:1453-1486. [PMID: 28165299 DOI: 10.1200/jco.2016.71.9807] [Citation(s) in RCA: 208] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Purpose Molecular testing of colorectal cancers (CRCs) to improve patient care and outcomes of targeted and conventional therapies has been the center of many recent studies, including clinical trials. Evidence-based recommendations for the molecular testing of CRC tissues to guide epidermal growth factor receptor (EGFR) -targeted therapies and conventional chemotherapy regimens are warranted in clinical practice. The purpose of this guideline is to develop evidence-based recommendations to help establish standard molecular biomarker testing for CRC through a systematic review of the literature. Methods The American Society for Clinical Pathology (ASCP), College of American Pathologists (CAP), Association for Molecular Pathology (AMP), and the American Society of Clinical Oncology (ASCO) convened an Expert Panel to develop an evidence-based guideline to help establish standard molecular biomarker testing, guide targeted therapies, and advance personalized care for patients with CRC. A comprehensive literature search that included over 4,000 articles was conducted to gather data to inform this guideline. Results Twenty-one guideline statements (eight recommendations, 10 expert consensus opinions and three no recommendations) were established. Recommendations Evidence supports mutational testing for genes in the EGFR signaling pathway, since they provide clinically actionable information as negative predictors of benefit to anti-EGFR monoclonal antibody therapies for targeted therapy of CRC. Mutations in several of the biomarkers have clear prognostic value. Laboratory approaches to operationalize molecular testing for predictive and prognostic molecular biomarkers involve selection of assays, type of specimens to be tested, timing of ordering of tests and turnaround time for testing results. Additional information is available at: www.asco.org/CRC-markers-guideline and www.asco.org/guidelineswiki.
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Affiliation(s)
- Antonia R Sepulveda
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Stanley R Hamilton
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Carmen J Allegra
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Wayne Grody
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Allison M Cushman-Vokoun
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - William K Funkhouser
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Scott E Kopetz
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Christopher Lieu
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Noralane M Lindor
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Bruce D Minsky
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Federico A Monzon
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Daniel J Sargent
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Veena M Singh
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Joseph Willis
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Jennifer Clark
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Carol Colasacco
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - R Bryan Rumble
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Robyn Temple-Smolkin
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Christina B Ventura
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
| | - Jan A Nowak
- Antonia R. Sepulveda, Columbia University, New York, NY; Stanley R. Hamilton, Scott E. Kopetz, and Bruce D. Minsky, University of Texas MD Anderson Cancer Center, Houston, TX; Carmen J. Allegra, University of Florida Medical Center, Gainesville, FL; Wayne Grody, UCLA Medical Center, Los Angeles, CA; Allison M. Cushman-Vokoun, University of Nebraska Medical Center, Omaha, NE; William K. Funkhouser, University of North Carolina School of Medicine, Chapel Hill, NC; Christopher Lieu, University of Colorado Denver School of Medicine, Denver, CO; Noralane M. Lindor, Mayo Clinic, Scottsdale, AZ; Federico A. Monzon, Castle Biosciences, Friendswood, TX; Daniel J. Sargent, Mayo Clinic, Rochester, MN; Veena M. Singh, Biocept, San Diego, CA; Joseph Willis, Case Western Reserve University, Cleveland, OH; Jennifer Clark, American Society for Clinical Pathology, Washington, DC; Carol Colasacco and Christina B. Ventura, College of American Pathologists, Northfield, IL; R. Bryan Rumble, American Society of Clinical Oncology, Alexandria, VA; Robyn Temple-Smolkin, Association for Molecular Pathology, Bethesda, MD; and Jan A. Nowak, Roswell Park Cancer Institute, Buffalo, NY
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Li Y, Li W. BRAF mutation is associated with poor clinicopathological outcomes in colorectal cancer: A meta-analysis. Saudi J Gastroenterol 2017; 23:144-149. [PMID: 28611337 PMCID: PMC5470373 DOI: 10.4103/1319-3767.207712] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND/AIMS The clinical relevance of the BRAF mutation in colorectal carcinoma (CRC) remains controversial. We performed a comprehensive meta-analysis to evaluate the precise relationship of BRAF mutation to clinicopathological features. MATERIALS AND METHODS A systematic search of the electronic databases, including PubMed, the Web of Knowledge, and the China Journal Net was performed between January 2005 and December 2015. Outcomes of interest included gender, tumor site, tumor differentiation, node involvement, tumor size, and AJCC stage. We calculated the pooled odds ratios (ORs) or risk ratios with 95% confidence intervals (CIs) for each study using a random or fixed-effect model. RESULTS Twenty-five studies with a total of 13208 patients were included. BRAF mutation-positive CRC patients were 1464 (11.1%). Our meta-analysis revealed that, in patients with CRC, the BRAF mutation was associated with female, proximal site, poor differentiation, >5 cm size, and advanced AJCC stage. CONCLUSIONS This meta-analysis demonstrated that BRAF mutation was closely related to adverse pathological features and poor outcome of CRC.
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Affiliation(s)
- Yujie Li
- Department of Surgical Oncology, Ningbo NO. 2 Hospital, Hangzhou, Zhejiang, China
| | - Weier Li
- Department of Colorectal Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China,Address for correspondence: Dr. Weier Li, Department of Colorectal Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China. E-mail:
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Immunohistochemistry with the anti-BRAF V600E (VE1) antibody: impact of pre-analytical conditions and concordance with DNA sequencing in colorectal and papillary thyroid carcinoma. Pathology 2016; 46:509-17. [PMID: 25014730 PMCID: PMC4233678 DOI: 10.1097/pat.0000000000000119] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Summary The most common of all activating BRAF mutations (T1799A) leads to a substitution of valine (V) to glutamic acid (E) at the position 600 of the amino acid sequence. The major goal of this study was to compare detection of the BRAF V600E mutation by DNA sequencing with immunohistochemistry (IHC) using the anti-BRAF V600E (VE1) antibody. Archival formalin fixed, paraffin embedded tissues from 352 patients with colon adenocarcinoma (n = 279) and papillary thyroid carcinoma (n = 73) were evaluated for the BRAF V600E mutation by sequencing and IHC. The discordant cases were re-evaluated by repeat IHC, SNaPshot and next-generation sequencing (NGS). Furthermore, the effect of pre-analytical variables on the utility of this antibody was evaluated in two xenograft mouse models. After resolving 15 initially discordant cases, 212 cases were negative for the BRAF V600E mutation by IHC. Of these, 210 cases (99.1%) were also negative by sequencing and two cases (0.9%) remained discordant. Of the 140 cases that were IHC positive for BRAF V600E, 138 cases were confirmed by sequencing (98.6%) and two cases remained discordant (1.4%). Overall, the negative predictive value was 99.1%, positive predictive value 98.6%, sensitivity 98.6%, specificity 99.1% and overall percentage agreement 98.9% (348/352 cases). Tissue fixation studies indicated that tissues should be fixed for 12–24 h within 2 h of tissue collection with 10% neutral buffered formalin.
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Kassouf E, Tabchi S, Tehfe M. Anti-EGFR Therapy for Metastatic Colorectal Cancer in the Era of Extended RAS Gene Mutational Analysis. BioDrugs 2016; 30:95-104. [PMID: 26927802 DOI: 10.1007/s40259-016-0166-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer-related mortality worldwide. In the past 2 decades, advances in cancer therapeutics allowed for a remarkable improvement in terms of survival for patients with metastatic CRC. The advent of targeted therapy, coupled with more efficient chemotherapy regimens, was the pillar achievement that contributed to the success of CRC therapy. Cetuximab and panitumumab, monoclonal antibodies targeting the epidermal growth factor receptor pathway, are the focus of this review since their mechanism of action and efficiency are closely related to the mutational status of a predictive biomarker, the Kristen rat Sarcoma viral oncogene (KRAS). More recently, another biomarker, the neuroblastoma rat sarcoma viral oncogene (NRAS), was found to be as valuable for the refinement of this targeted therapy. The arguments for the use of extended analysis of the RAS gene are thoroughly reviewed because they directly affect the choice of targeted agents and potentially the choice of backbone chemotherapy.
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Affiliation(s)
- Elie Kassouf
- Hematology-Oncology Division, Department of Hematology Oncology, Hôpital Notre Dame, Centre Hospitalier de l'Université de Montréal, 1560 Sherbrooke Street East, Montréal, QC, H2L 4M1, Canada
| | - Samer Tabchi
- Hematology-Oncology Division, Department of Hematology Oncology, Hôpital Notre Dame, Centre Hospitalier de l'Université de Montréal, 1560 Sherbrooke Street East, Montréal, QC, H2L 4M1, Canada
| | - Mustapha Tehfe
- Hematology-Oncology Division, Department of Hematology Oncology, Hôpital Notre Dame, Centre Hospitalier de l'Université de Montréal, 1560 Sherbrooke Street East, Montréal, QC, H2L 4M1, Canada.
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Huang MY, Tsai HL, Huang JJ, Wang JY. Clinical Implications and Future Perspectives of Circulating Tumor Cells and Biomarkers in Clinical Outcomes of Colorectal Cancer. Transl Oncol 2016; 9:340-7. [PMID: 27567958 PMCID: PMC5006809 DOI: 10.1016/j.tranon.2016.06.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 06/30/2016] [Accepted: 06/30/2016] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is a major public health problem. Early CRC detection, pretherapeutic responsiveness prediction, and postoperative micrometastasis monitoring are the hallmarks for successful CRC treatment. Here, the methodologies used for detecting circulating tumor cells (CTCs) from CRC are reviewed. In addition to the traditional CRC biomarkers, the persistent presence of posttherapeutic CTCs indicates resistance to adjuvant chemotherapy and/or radiotherapy; hence, CTCs also play a decisive role in the subsequent relapse of CRC. Moreover, the genetic and phenotypic profiling of CTCs often differs from that of the primary tumor; this difference can be used to select the most effective targeted therapy. Consequently, studying CTCs can potentially individualize treatment strategies for patients with CRC. Therefore, CTC detection and characterization may be valuable tools for refining prognosis, and CTCs can be used in a real-time tumor biopsy for designing individually tailored therapy against CRC.
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Affiliation(s)
- Ming-Yii Huang
- Department of Radiation Oncology, Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; Department of Radiation Oncology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Center for Biomarkers and Biotech Drugs, Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Hsiang-Lin Tsai
- Division of General Surgery Medicine, Department of Surgery, Kaohsiung Medical University, Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Division of Gastroenterology and General Surgery, Department of Surgery, Kaohsiung Medical University, Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Joh-Jong Huang
- Department of Family Medicine and Department of Community Medicine, Kaohsiung Medical University, Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Jaw-Yuan Wang
- Center for Biomarkers and Biotech Drugs, Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Division of Gastroenterology and General Surgery, Department of Surgery, Kaohsiung Medical University, Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Graduate Institute of Clinical Medicine, Department of Surgery, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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Zhu L, Dong C, Cao Y, Fang X, Zhong C, Li D, Yuan Y. Prognostic Role of BRAF Mutation in Stage II/III Colorectal Cancer Receiving Curative Resection and Adjuvant Chemotherapy: A Meta-Analysis Based on Randomized Clinical Trials. PLoS One 2016; 11:e0154795. [PMID: 27138801 PMCID: PMC4854379 DOI: 10.1371/journal.pone.0154795] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 04/19/2016] [Indexed: 02/07/2023] Open
Abstract
Background and Objective Studies examining the prognostic value of the BRAF mutation on relapse-free survival (RFS), disease-free survival (DFS) and overall survival (OS) in stage II/III colorectal cancer (CRC) patients receiving curative resection and adjuvant chemotherapy so far showed discrepant results. Therefore, a meta-analysis of relevant studies was performed for clarification. Methods Randomized trials of stage II/III colorectal cancer treated with curative resection followed by adjuvant chemotherapy were selected to conduct a meta-analysis. The necessary descriptive and statistical information such as hazard ratios (HRs) and 95% confidence intervals (CIs) were derived from published survival data. Results Seven phase III randomized clinical trials (RCTs) including 1,035 BRAF mutation stage II/III CRC patients receiving curative resection and adjuvant chemotherapy were analyzed. Overall, BRAF mutation resulted in poorer OS (HR = 1.42, 95% CI: 1.25–1.60; P < 0.00001), and poorer DFS (HR = 1.26, 95% CI: 1.07–1.48, P = 0.006) compared with BRAF wild-type CRC. The prognostic role on RFS could not be elucidated in the meta-analysis because of limited data. Conclusions BRAF mutation was significantly related with shorter DFS and OS among stage II/III CRC patients receiving adjuvant chemotherapy after curative resection. Its prognostic role for RFS needs to be further analyzed when more data is available.
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Affiliation(s)
- Lizhen Zhu
- Department of Medical Oncology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Caixia Dong
- Department of Medical Oncology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Ying Cao
- Department of Medical Oncology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Xuefeng Fang
- Department of Medical Oncology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Chenhan Zhong
- Department of Medical Oncology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Dan Li
- Department of Medical Oncology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Ying Yuan
- Department of Medical Oncology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Chinese National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- * E-mail:
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BRAF V600E Gene Mutation in Colonic Adenocarcinomas. Immunohistochemical Detection Using Tissue Microarray and Clinicopathologic Characteristics. Appl Immunohistochem Mol Morphol 2016; 24:88-96. [DOI: 10.1097/pai.0000000000000157] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Choi YJ, Kim MJ, Lee BH, Kwon MJ, Hwang HS. Relationship between Preoperative ¹⁸F-Fluorodeoxyglucose Uptake and Epidermal Growth Factor Receptor Status in Primary Colorectal Cancer. Yonsei Med J 2016; 57:232-7. [PMID: 26632406 PMCID: PMC4696959 DOI: 10.3349/ymj.2016.57.1.232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/14/2015] [Accepted: 06/04/2015] [Indexed: 12/22/2022] Open
Abstract
PURPOSE Both ¹⁸F-fluorodeoxyglucose (¹⁸F-FDG) uptake and epidermal growth factor receptor (EGFR) status are prognostic variables of colorectal cancer (CRC). The aim of this study was to investigate a possible association between ¹⁸F-FDG uptake on preoperative positron emission tomography/computed tomography (PET/CT) and EGFR status in primary CRC. MATERIALS AND METHODS Records of 132 patients (66 men and 66 women; mean age=67.1±11.1 years) who underwent ¹⁸F-FDG PET/CT for CRC staging and subsequent bowel resection were reviewed. In primary lesions, ¹⁸F-FDG uptake was semiquantitatively evaluated in terms of maximum standardized uptake value (SUVmax), and EGFR status was determined by immunohistochemistry. Associations of clinicopathological parameters and EGFR status were analyzed by Pearson's chi-square test, multiple logistic regression, and receiver operating characteristic curves. RESULTS Eighty-six patients (65.2%) showed EGFR expression. SUVmax was significantly lower in EGFR-negative tumors than in EGFR-expressing tumors (10.0±4.2 vs. 12.1±2.1; p=0.012). It was the only significant parameter correlated with EGFR expression (odds ratio=2.457; relative risk=2.013; p=0.038). At the SUVmax threshold of 7.5, the sensitivity and specificity for predicting EGFR expression were 84.9% and 40.4%, respectively (area under the curve=0.624; p=0.019). CONCLUSION Preoperative ¹⁸F-FDG uptake is slightly correlated with EGFR status in primary CRC. Preoperative SUVmax of ¹⁸F-FDG may have a limited role in predicting EGFR expression in such tumors because of its poor specificity.
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Affiliation(s)
- Yun Jung Choi
- Department of Nuclear Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
- Graduate School of Medicine, Yonsei University, Seoul, Korea
| | - Min Jeong Kim
- Department of Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Bong Hwa Lee
- Department of Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Mi Jung Kwon
- Department of Pathology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Hee Sung Hwang
- Department of Nuclear Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea.
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Meta-analysis of BRAF mutation as a predictive biomarker of benefit from anti-EGFR monoclonal antibody therapy for RAS wild-type metastatic colorectal cancer. Br J Cancer 2015; 112:1888-94. [PMID: 25989278 PMCID: PMC4580381 DOI: 10.1038/bjc.2015.173] [Citation(s) in RCA: 223] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 04/17/2015] [Accepted: 04/22/2015] [Indexed: 12/14/2022] Open
Abstract
Background: Metastatic colorectal cancer (mCRC) that harbours a BRAF V600E mutation (BRAF MT) is associated with poorer outcomes. However, whether this mutation is predictive of treatment benefit from anti-epidermal growth factor receptor (EGFR) monoclonal antibodies (mAbs) is uncertain. Methods: We conducted a systematic review and meta-analysis of randomised controlled trials (RCTs) published up to July 2014 that evaluated the effect of BRAF MT on the treatment benefit from anti-EGFR mAbs for mCRC. Results: Seven RCTs met the inclusion criteria for assessment of overall survival (OS), whereas eight RCTs met the inclusion criteria for assessment of progression-free survival (PFS). For RAS WT/BRAF MT tumours, the hazard ratio for OS benefit with anti-EGFR mAbs was 0.97 (95% CI; 0.67–1.41), whereas the hazard ratio was 0.81 (95% CI; 0.70–0.95) for RAS WT/BRAF WT tumours. However, the test of interaction (P=0.43) was not statistically significant, highlighting that the observed differences in the effect of anti-EGFR mAbs on OS according to the BRAF mutation status may be due to chance alone. Regarding PFS benefit with anti-EGFR mAbs, the hazard ratio was 0.86 (95% CI; 0.61–1.21) for RAS WT/BRAF MT tumours as compared with 0.62 (95% CI; 0.50–0.77) for RAS WT/BRAF WT tumours (test of interaction, P=0.07). Interpretation: This meta-analysis demonstrates that there is insufficient evidence to definitively state that RAS WT/BRAF MT individuals attain a different treatment benefit from anti-EGFR mAbs for mCRC compared with RAS WT/BRAF WT individuals. As such, there are insufficient data to justify the exclusion of anti-EGFR mAb therapy for patients with RAS WT/BRAF MT mCRC.
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Tack V, Ligtenberg MJL, Tembuyser L, Normanno N, Vander Borght S, Han van Krieken J, Dequeker EMC. External quality assessment unravels interlaboratory differences in quality of RAS testing for anti-EGFR therapy in colorectal cancer. Oncologist 2015; 20:257-62. [PMID: 25657200 PMCID: PMC4350801 DOI: 10.1634/theoncologist.2014-0382] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 01/02/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Regulations for the selection of patients with metastatic colorectal cancer for anti-EGFR treatment changed at the end of 2013. The set of mutations to be tested extended from KRAS codons 12 and 13 to KRAS and NRAS exons 2, 3, and 4. A European external quality assessment scheme monitored the performance of laboratories and evaluated the implementation of the new regulations. MATERIALS AND METHODS The 131 participating laboratories received 10 samples of formalin-fixed paraffin-embedded material, including RAS (exon 2, 3, 4) and BRAF mutations. Mock clinical data were provided for three cases. Using their routine methods, laboratories determined the genotypes and submitted three written reports. Assessors scored the results according to predefined evaluation criteria. RESULTS Half of the participants (49.3%) had completely implemented the new test requirements (codons 12, 13, 59, 61, 117, and 146 of KRAS and NRAS), and 96 laboratories (73.3%) made no genotype mistakes. Correct nomenclature, according to the Human Genome Variation Society, was used by 82 laboratories (62.6%). CONCLUSION Although regulations were effective for several months, many laboratories were not ready for full RAS testing in the context of anti-EGFR therapy. Nevertheless, in each participating country, there are laboratories that provide complete and correct testing. External quality assessments can be used to monitor implementation of new test regulations and to stimulate the laboratories to improve their testing procedures. Because the results of this program are available on the website of the European Society of Pathology, patients and clinicians can refer test samples to a reliable laboratory.
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Affiliation(s)
- Véronique Tack
- Biomedical Quality Assurance Research Unit, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands; Cell Biology and Biotherapy Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione Giovanni Pascale" - IRCCS, Naples, Italy; Department of Pathology, UZ Leuven, Leuven, Belgium
| | - Marjolijn J L Ligtenberg
- Biomedical Quality Assurance Research Unit, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands; Cell Biology and Biotherapy Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione Giovanni Pascale" - IRCCS, Naples, Italy; Department of Pathology, UZ Leuven, Leuven, Belgium
| | - Lien Tembuyser
- Biomedical Quality Assurance Research Unit, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands; Cell Biology and Biotherapy Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione Giovanni Pascale" - IRCCS, Naples, Italy; Department of Pathology, UZ Leuven, Leuven, Belgium
| | - Nicola Normanno
- Biomedical Quality Assurance Research Unit, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands; Cell Biology and Biotherapy Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione Giovanni Pascale" - IRCCS, Naples, Italy; Department of Pathology, UZ Leuven, Leuven, Belgium
| | - Sara Vander Borght
- Biomedical Quality Assurance Research Unit, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands; Cell Biology and Biotherapy Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione Giovanni Pascale" - IRCCS, Naples, Italy; Department of Pathology, UZ Leuven, Leuven, Belgium
| | - J Han van Krieken
- Biomedical Quality Assurance Research Unit, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands; Cell Biology and Biotherapy Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione Giovanni Pascale" - IRCCS, Naples, Italy; Department of Pathology, UZ Leuven, Leuven, Belgium
| | - Elisabeth M C Dequeker
- Biomedical Quality Assurance Research Unit, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium; Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands; Cell Biology and Biotherapy Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione Giovanni Pascale" - IRCCS, Naples, Italy; Department of Pathology, UZ Leuven, Leuven, Belgium
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Ye JX, Liu Y, Qin Y, Zhong HH, Yi WN, Shi XY. KRAS and BRAF gene mutations and DNA mismatch repair status in Chinese colorectal carcinoma patients. World J Gastroenterol 2015; 21:1595-1605. [PMID: 25663779 PMCID: PMC4316102 DOI: 10.3748/wjg.v21.i5.1595] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/28/2014] [Accepted: 12/08/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate gene mutations and DNA mismatch repair (MMR) protein abnormality in Chinese colorectal carcinoma (CRC) patients and their correlations with clinicopathologic features.
METHODS: Clinical and pathological information for 535 patients including 538 tumors was reviewed and recorded. Mutation analyses for exon 2 of KRAS gene and exon 15 of BRAF gene were performed by Sanger sequencing except that in 9 tumors amplification refractory mutation system PCR was used. Expression of MMR proteins including MHL1, MSH2, MSH6 and PMS2 was evaluated by immunohistochemistry. Correlations of KRAS and BRAF mutation status and the expression status of MMR proteins with age, gender, cancer stage, location, and histology were analyzed. Correlations between KRAS or BRAF mutations and MMR protein expression were also explored.
RESULTS: The overall frequencies of KRAS and BRAF mutations were 37.9% and 4.4%, respectively. KRAS mutations were more common in patients ≥ 50 years old (39.8% vs 22% in patients < 50 years old, P < 0.05). The frequencies of BRAF mutants were higher in tumors from females (6.6% vs males 2.8%, P < 0.05), located in the right colon (9.6% vs 2.1% in the left colon, 1.8% in the rectum, P < 0.01), with mucinous differentiation (9.8% vs 2.8% without mucinous differentiation, P < 0.01), or being poorly differentiated (9.5% vs 3.4% well/moderately differentiated, P < 0.05). MMR deficiency was strongly associated with proximal location (20.5% in the right colon vs 9.2% in the left colon and 5.1% in the rectum, P < 0.001), early cancer stage (15.0% in stages I-II vs 7.7% in stages III-IV, P < 0.05), and mucinous differentiation (20.2% vs 9.2% without mucin, P < 0.01). A higher frequency of MLH1/PMS2 loss was found in females (9.2% vs 4.4% in males, P < 0.05), and MSH2/MSH6 loss tended to be seen in younger (<50 years old) patients (12.0% vs 4.0% ≥ 50 years old, P < 0.05). MMR deficient tumors were less likely to have KRAS mutations (18.8% vs 41.7% in MMR proficient tumors, P < 0.05) and tumors with abnormal MLH1/PMS2 tended to harbor BRAF mutations (15.4% vs 4.2% in MMR proficient tumors, P < 0.05).
CONCLUSION: The frequency of sporadic CRCs having BRAF mutation, MLH1 deficiency and MSI in Chinese population may be lower than that in the Western population.
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BRAFV600E mutation analysis by immunohistochemistry in patients with thoracic metastases from colorectal cancer. Pathology 2015; 46:311-5. [PMID: 24798160 DOI: 10.1097/pat.0000000000000113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The BRAF(V600E) mutation confers worse prognosis to metastatic colorectal cancer (mCRC) patients. In addition, this mutation has a negative predictive value for response to treatment with monoclonal antibodies against EGFR in patients with KRAS wild-type (wt) mCRC. The utility of immunohistochemistry (IHC) as an alternative approach for detection of BRAF(V600E) in the thoracic metastases of sporadic mCRC patients has not been evaluated until now. The purpose of this study was to compare BRAF(V600E) IHC staining with molecular biology methods and to define the diagnostic value of the VE1 antibody for the detection of BRAF(V600E) in this population. BRAF mutations were analysed by two DNA sequencing methods (pyrosequencing and Sanger sequencing) in a Caucasian population of 310 sporadic mCRC with thoracic metastases patients expressing KRAS wt. Detection of the BRAF(V600E) mutation was performed in the corresponding tumours by IHC using the VE1 antibody and compared to results of the DNA-based assays. Thirty-nine out of 310 (13%) of tumours harboured a BRAF mutation, which corresponded to either a BRAF(V600E) in 34 of 310 (11%) cases or a non-BRAF(V600E) mutation in 5 of 310 (2%) cases. IHC with VE1 was strongly positive in 32 of 34 (88%) BRAF(V600E) mutated tumours and negative in non-BRAF(V600E) mutated tumours. IHC using the VE1 clone is a specific and sensitive method for the detection of BRAF(V600E) and may be either a complementary or an alternative method to molecular testing in mCRC patients.
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Anti-EGFR Resistance in Colorectal Cancer: Current Knowledge and Future Perspectives. CURRENT COLORECTAL CANCER REPORTS 2014. [DOI: 10.1007/s11888-014-0242-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Kim ER, Kim YH. Clinical application of genetics in management of colorectal cancer. Intest Res 2014; 12:184-93. [PMID: 25349592 PMCID: PMC4204714 DOI: 10.5217/ir.2014.12.3.184] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 06/27/2014] [Accepted: 06/29/2014] [Indexed: 12/22/2022] Open
Abstract
The extensive study of genetic alterations in colorectal cancer (CRC) has led to molecular diagnostics playing an increasingly important role in CRC diagnosis and treatment. Currently, it is believed that CRC is a consequence of the accumulation of both genetic and epigenetic genomic alterations. It is known that there are at least 3 major pathways that lead to colorectal carcinogenesis: (1) the chromosomal instability pathway, (2) the microsatellite instability pathway, and (3) the cytosine-phospho-guanine island methylator phenotype pathway. With recent advances in CRC genetics, the identification of specific molecular alterations responsible for CRC pathogenesis has directly influences clinical care. Patients at high risk for developing CRC can be identified by genetic testing for specific molecular alterations, and the use of molecular biomarkers for predictive and prognostic purposes is also increasing. This is clearly supported by the recent advances in genetic testing for CRC whereby specific molecular alterations are identified for the purpose of guiding treatment with targeting therapies such as anti-endothelial growth factor receptor monoclonal antibodies.
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Affiliation(s)
- Eun Ran Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Young-Ho Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Coppedè F, Lopomo A, Spisni R, Migliore L. Genetic and epigenetic biomarkers for diagnosis, prognosis and treatment of colorectal cancer. World J Gastroenterol 2014; 20:943-56. [PMID: 24574767 PMCID: PMC3921546 DOI: 10.3748/wjg.v20.i4.943] [Citation(s) in RCA: 174] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 11/21/2013] [Accepted: 12/05/2013] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common cancer worldwide and results from the accumulation of mutations and epimutations in colonic mucosa cells ultimately leading to cell proliferation and metastasis. Unfortunately, CRC prognosis is still poor and the search of novel diagnostic and prognostic biomarkers is highly desired to prevent CRC-related deaths. The present article aims to summarize the most recent findings concerning the use of either genetic or epigenetic (mainly related to DNA methylation) biomarkers for CRC diagnosis, prognosis, and response to treatment. Recent large-scale DNA methylation studies suggest that CRC can be divided into several subtypes according to the frequency of DNA methylation and those of mutations in key CRC genes, and that this is reflected by different prognostic outcomes. Increasing evidence suggests that the analysis of DNA methylation in blood or fecal specimens could represent a valuable non-invasive diagnostic tool for CRC. Moreover, a broad spectrum of studies indicates that the inter-individual response to chemotherapeutic treatments depends on both epigenetic modifications and genetic mutations occurring in colorectal cancer cells, thereby opening the way for a personalized medicine. Overall, combining genetic and epigenetic data might represent the most promising tool for a proper diagnostic, prognostic and therapeutic approach.
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Yanus GA, Belyaeva AV, Ivantsov AO, Kuligina ES, Suspitsin EN, Mitiushkina NV, Aleksakhina SN, Iyevleva AG, Zaitseva OA, Yatsuk OS, Gorodnova TV, Strelkova TN, Efremova SA, Lepenchuk AY, Ochir-Garyaev AN, Paneyah MB, Matsko DE, Togo AV, Imyanitov EN. Pattern of clinically relevant mutations in consecutive series of Russian colorectal cancer patients. Med Oncol 2013; 30:686. [PMID: 23943423 DOI: 10.1007/s12032-013-0686-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Accepted: 07/31/2013] [Indexed: 12/18/2022]
Abstract
One hundred and ninety-five consecutive surgically treated Russian colorectal cancer (CRC) patients were retrospectively analyzed for the presence of mutations in KRAS, NRAS, BRAF and PIK3CA genes as well as for the microsatellite instability status. Comparison between high-resolution melting analysis, co-amplification at lower denaturation temperature PCR, DNA sequencing and allele-specific PCR for the detection of KRAS codon 12/13 mutations revealed that none of these methods alone provided satisfactory results in 100 % of the analyzed cases; this experience supports the use of more than one mutation-detecting technique at least in some circumstances. KRAS codon 12/13 substitutions were detected in 70 (35.9 %) CRC cases. Other mutations in the RAS/RAF genes occurred in 22 (11.3 %) cases and included rare KRAS (n = 6), NRAS (n = 8) and BRAF (n = 8) alterations. 5 BRAF mutations affected codon 600, while the remaining 3 potentially functional substitutions were located in the position 594. Twenty-four (12.3 %) CRC cases carried mutations in the PIK3CA, and 18 of these tumors also contained activating alteration in the RAS/RAF genes (p = 0.007). Only 3 (1.5 %) CRC cases showed high-level microsatellite instability (MSI-H) as determined by a panel of mononucleotide markers. Overall, the distribution of potentially predictive mutations in Russian CRC cases is similar to the one observed in other patient series of European descent. Noticeable occurrence of D594G mutation in BRAF oncogene and low frequency of MSI-H may deserve specific attention.
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Affiliation(s)
- Grigoriy A Yanus
- Laboratory of Molecular Oncology, N.N. Petrov Institute of Oncology, St.-Petersburg, Russia
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