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Planchard D, Sanborn RE, Negrao MV, Vaishnavi A, Smit EF. BRAF V600E-mutant metastatic NSCLC: disease overview and treatment landscape. NPJ Precis Oncol 2024; 8:90. [PMID: 38627602 PMCID: PMC11021522 DOI: 10.1038/s41698-024-00552-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 02/15/2024] [Indexed: 04/19/2024] Open
Abstract
In this review, we cover the current understanding of BRAF mutations and associated clinical characteristics in patients with metastatic NSCLC, approved and emerging treatment options, BRAF sequencing approaches, and unmet needs. The BRAFV600E mutation confers constitutive activity of the MAPK pathway, leading to enhanced growth, proliferation, and survival of tumor cells. Testing for BRAF mutations enables patients to be treated with therapies that directly target BRAFV600E and the MAPK pathway, but BRAF testing lags behind other oncogene testing in metastatic NSCLC. Additional therapies targeting BRAFV600E mutations provide options for patients with metastatic NSCLC. Emerging therapies and combinations under investigation could potentially overcome issues of resistance and target non-V600E mutations. Therefore, because targeted therapies with enhanced efficacy are on the horizon, being able to identify BRAF mutations in metastatic NSCLC may become even more important.
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Affiliation(s)
- David Planchard
- Thoracic Cancer Group, Department of Medical Oncology, Gustave Roussy, Villejuif, France.
| | - Rachel E Sanborn
- Earle A. Chiles Research Institute, Providence Cancer Institute, Portland, OR, USA
| | - Marcelo V Negrao
- Department of Thoracic/Head and Neck Medical Oncology, Division of Cancer Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Aria Vaishnavi
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Egbert F Smit
- Department of Pulmonary Disease, Leiden University Medical Centre, Leiden, Netherlands
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2
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Ahn HY, Lee CH, Lee MK, Eom JS, Jeong YJ, Kim YD, Cho JS, Lee J, Lee SJ, Shin DH, Kim A. BRAF V600E Mutation of Non-Small Cell Lung Cancer in Korean Patients. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1085. [PMID: 37374289 DOI: 10.3390/medicina59061085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/28/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023]
Abstract
Background and Objectives: BRAF mutational status in resected non-small cell lung cancer (NSCLC) in the Korean population is poorly understood. We explored BRAF (particularly BRAF V600E) mutational status among Korean patients with NSCLC. Materials and Methods: This study included 378 patients with resected primary NSCLC who were enrolled from January 2015 to December 2017. The authors obtained formalin-fixed paraffin-embedded (FFPE) tissue blocks and performed peptide nucleic acid (PNA)-clamping polymerase chain reaction (PCR) for detecting BRAF V600, real-time PCR for detecting BRAF V600E, and immunohistochemical analyses using the mutation-specific Ventana VE1 monoclonal antibody. For positive cases in any methods mentioned above, direct Sanger sequencing was additionally performed. Results: The PNA-clamping method revealed the BRAF V600 mutation in 5 (1.3%) of the 378 patients. Among these five patients, real-time PCR, direct Sanger sequencing detected BRAF V600E mutations in three (0.8%) patients. Thus, two cases showed differences in their PNA-clamping and the others. Direct Sanger sequencing of PNA-clamping PCR product was performed for two cases showing negative results on direct Sanger sequencing; both contained BRAF mutations other than V600E. All patients harboring BRAF mutations had adenocarcinomas, and all patients with V600E mutation exhibited minor micropapillary components. Conclusions: Despite the low incidence of the BRAF mutation among Korean patients with NSCLC, lung adenocarcinoma patients with micropapillary components should be prioritized in terms of BRAF mutation testing. Immunohistochemical staining using Ventana VE1 antibody may serve as a screening examination for BRAF V600E.
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Affiliation(s)
- Hyo Yeong Ahn
- School of Medicine, Pusan National University, Beomeori, Mulgeum-eop, Yangsan 50612, Republic of Korea
- Department of Thoracic and Cardiovascular Surgery, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea
| | - Chang Hun Lee
- School of Medicine, Pusan National University, Beomeori, Mulgeum-eop, Yangsan 50612, Republic of Korea
- Department of Pathology, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea
| | - Min Ki Lee
- School of Medicine, Pusan National University, Beomeori, Mulgeum-eop, Yangsan 50612, Republic of Korea
- Department of Internal Medicine, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea
| | - Jung Seop Eom
- School of Medicine, Pusan National University, Beomeori, Mulgeum-eop, Yangsan 50612, Republic of Korea
- Department of Internal Medicine, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea
| | - Yeon Joo Jeong
- School of Medicine, Pusan National University, Beomeori, Mulgeum-eop, Yangsan 50612, Republic of Korea
- Department of Radiology, Biomedical Research Institute, Yangsan Pusan National University Hospital, Busan 50612, Republic of Korea
| | - Yeong Dae Kim
- School of Medicine, Pusan National University, Beomeori, Mulgeum-eop, Yangsan 50612, Republic of Korea
- Department of Thoracic and Cardiovascular Surgery, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea
| | - Jeong Su Cho
- School of Medicine, Pusan National University, Beomeori, Mulgeum-eop, Yangsan 50612, Republic of Korea
- Department of Thoracic and Cardiovascular Surgery, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea
| | - Jonggeun Lee
- Department of Thoracic and Cardiovascular Surgery, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea
| | - So Jeong Lee
- Department of Pathology, Seegene Medical Center, Busan 48792, Republic of Korea
| | - Dong Hoon Shin
- School of Medicine, Pusan National University, Beomeori, Mulgeum-eop, Yangsan 50612, Republic of Korea
- Department of Pathology, Biomedical Research Institute, Yangsan Pusan National University Hospital, Busan 50612, Republic of Korea
| | - Ahrong Kim
- School of Medicine, Pusan National University, Beomeori, Mulgeum-eop, Yangsan 50612, Republic of Korea
- Department of Pathology, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea
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3
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Teng X, Chen Z, Zhang L, Teng X. Bronchiolar adenoma with squamous metaplasia: a distinct phenotype. Histopathology 2023. [DOI: 10.1111/his.14907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 03/01/2023] [Accepted: 03/05/2023] [Indexed: 03/29/2023]
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Gow CH, Hsieh MS, Chen YL, Liu YN, Wu SG, Shih JY. Survival outcomes and prognostic factors of lung cancer patients with the MET exon 14 skipping mutation: A single-center real-world study. Front Oncol 2023; 13:1113696. [PMID: 36969059 PMCID: PMC10034335 DOI: 10.3389/fonc.2023.1113696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/23/2023] [Indexed: 03/11/2023] Open
Abstract
IntroductionThe MET exon 14 skipping (METex14) mutation is an important oncogenic driver in lung cancer. We performed a retrospective analysis of clinical data from lung cancer patients with the METex14 mutation to analyze their survival outcomes and associated prognostic factors.MethodsA one-step reverse transcription-polymerase chain reaction to examine the presence of the METex14 mutation was performed using RNA samples from 1374 lung cancer patients with no detected EGFR and ALK mutations. Pathological features and immunohistochemistry (IHC) results for c-MET were analyzed in patients with METex14-positive tumors.ResultsMETex14 was identified in 69 patients with lung cancer, including 53 adenocarcinoma (ADC) and 16 non-ADC patients. In comparison with patients without the METex14 mutation, lung cancer patients harboring the METex14 mutation were generally elderly individuals, never-smokers, and had poor performance scores. A higher frequency of METex14 mutations was detected in pulmonary sarcomatoid carcinoma (PSC) patients (24.3%, n = 9/37). However, stage IV PSC patients with or without the METex14 mutations showed similarly poor overall survival (OS) (p = 0.429). For all 36 METex14-positive lung ADCs, multivariate analysis showed several poor prognostic factors, including strong c-MET IHC staining (p = 0.006), initial brain metastasis (p = 0.005), and administration of only supportive care (p < 0.001). After excluding seven patients who received only supportive care, we further analyzed 29 stage IV lung ADC patients with METex14 mutations who received anti-cancer treatment. Multivariate analysis showed that pemetrexed treatment (p = 0.003), lung radiotherapy (p = 0.020), initial brain metastasis (p = 0.005), and strong c-MET IHC staining (p = 0.012) were independent prognostic factors for OS in these patients.ConclusionsA higher frequency of METex14 mutations was detected in PSC patients. Stage IV PSC patients with or without the METex14 mutations had similarly poor overall survival. Pemetrexed-based chemotherapy, strong c-MET ICH staining, initial brain metastasis, and lung radiotherapy, may help predict survival outcomes in patients with advanced lung ADCs harboring the METex14 mutation.
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Affiliation(s)
- Chien-Hung Gow
- Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Healthcare Information and Management, Ming-Chuan University, Taoyuan, Taiwan
| | - Min-Shu Hsieh
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Lin Chen
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yi-Nan Liu
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shang-Gin Wu
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Cancer Center, National Taiwan University, Taipei, Taiwan
| | - Jin-Yuan Shih
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University, Taipei, Taiwan
- *Correspondence: Jin-Yuan Shih,
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Chang JYF, Lu PH, Tseng CH, Wang YP, Lee JJ, Chiang CP. Factors affecting the accuracy of anti-BRAF V600E immunohistochemistry results in ameloblastomas. J Oral Pathol Med 2023; 52:342-350. [PMID: 36625499 DOI: 10.1111/jop.13399] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/17/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND There are still some controversies about the results of anti-BRAF V600E-specific antibody immunohistochemistry in ameloblastomas. This study aimed to examine the accuracy of V600E-specific antibody immunohistochemistry in detection of BRAF V600E mutation in ameloblastoma tissue sections of different ages. METHODS The BRAF V600E status of 64 ameloblastoma specimens was assessed using both Sanger sequencing and V600E-specific antibody immunohistochemistry, and the sensitivity, specificity, positive predictive value, and negative predictive value were calculated. The difference in V600E-specific antibody immunohistochemistry staining intensity among the three groups of ameloblastoma tissue blocks of different ages was evaluated by chi-square test. The consistency between V600E-specific antibody immunohistochemistry and DNA sequencing results and the V600E-specific antibody immunohistochemistry staining intensity of 15 paired newly-cut and 3-month storage sections of the same 15 ameloblastomas were also compared. RESULTS For detection of BRAF V600E mutation, the V600E-specific antibody immunohistochemistry had high sensitivity (98.21% 55/56), specificity (87.5% 7/8), positive predictive value (98.21% 55/56), and negative predictive value (87.5% 7/8). Heterogeneity of the staining intensity was observed in the same tissue section, but all or none expression pattern was noticed in the solid tumor nests. The storage time of paraffin tissue blocks ranging from 2 to 14 years did not affect the V600E-specific antibody-positive staining intensity. However, the three-month storage sections showed a significant diminishment of V600E-specific antibody-positive staining signals. CONCLUSIONS The BRAF V600E-specific antibody immunohistochemistry is suitable for routine detection of BRAF V600E mutation in ameloblastomas. The all or none expression pattern suggests the BRAF V600E mutation may be an early event in the pathogenesis of ameloblastoma.
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Affiliation(s)
- Julia Yu Fong Chang
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan.,Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Oral Biology, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Pei Hsuan Lu
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan.,Department of Dentistry, National Taiwan University Hospital Yun Lin Branch, Douliu, Taiwan
| | - Chih-Huang Tseng
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan.,Division of Oral Pathology & Maxillofacial Radiology, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Oral & Maxillofacial Imaging Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Ping Wang
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan.,Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Oral Biology, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Jang-Jaer Lee
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan.,Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chun-Pin Chiang
- Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Dentistry, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
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Garcia A, Rivera Rolon MDM, Barkoh B, Chen W, Luthra R, Roy-Chowdhuri S. Assessment of BRAF V600E (VE1) immunochemistry for the detection of BRAF V600E mutation in non-small cell lung carcinoma cytology specimens. Cancer Cytopathol 2023; 131:50-57. [PMID: 36200799 DOI: 10.1002/cncy.22648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/30/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND Non-small cell lung carcinoma (NSCLC) patients with BRAF V600E-mutated tumors respond to targeted therapy. Testing for BRAF V600E is commonly performed with molecular methods; however, a mutation-specific VE1 antibody clone can provide an alternative testing option using immunohistochemistry (IHC) for practices using single-gene testing and in situations when the specimen is inadequate for molecular testing. This study evaluates the usefulness of VE1 IHC in screening for BRAF V600E mutations in NSCLC cytology specimens. METHODS The authors retrospectively identified cytology cases with a diagnosis of NSCLC that had BRAF V600E IHC performed on cell block sections with the monoclonal VE1 antibody clone. The BRAF V600E IHC results were compared with those of molecular testing performed with an amplicon-based next-generation sequencing assay. RESULTS There were 201 NSCLC cases evaluated. The VE1 IHC was positive in seven of seven BRAF V600E-mutated tumors (100%) and was negative in 158 of 158 nonmutated BRAF V600E tumors (100%). Thirty cases did not undergo molecular testing, primarily because of insufficient tissue or because molecular testing was performed on an alternative specimen. Six cases showed equivocal weak/focal staining: Two cases demonstrated BRAF V600E mutations, and four cases were negative by molecular testing. CONCLUSIONS This study suggests that BRAF V600E IHC can be used reliably to screen NSCLC cytology specimens, and negative results strongly indicate the absence of a BRAF V600E mutation. Having a low threshold for equivocal staining is recommended with molecular confirmation of BRAF V600E for any cases demonstrating weak and/or focal cytoplasmic staining.
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Affiliation(s)
- Ashley Garcia
- Department of Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Maria Del Mar Rivera Rolon
- Department of Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Bedia Barkoh
- Department of Hematopathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Wei Chen
- Department of Hematopathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Rajyalakhsmi Luthra
- Department of Hematopathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sinchita Roy-Chowdhuri
- Department of Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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7
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Chang CF, Yang MH, Lee JH, Shih SR, Lin CH, Chen CP, Wu CE, Lu JY. The impact of BRAF targeting agents in advanced anaplastic thyroid cancer: a multi-institutional retrospective study in Taiwan. Am J Cancer Res 2022; 12:5342-5350. [PMID: 36504909 PMCID: PMC9729886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 10/26/2022] [Indexed: 12/15/2022] Open
Abstract
Anaplastic thyroid cancer (ATC) is a rare but lethal thyroid cancer. Dabrafenib and trametinib has been the standard treatment for the patients with BRAF mutation based on phase II study. This study aimed to exam the impact of dabrafenib and trametinib in ATC patients. ATC patients treated in three institutes in Taiwan were retrospectively reviewed. The clinical features, BRAF status, and survivals were collected. Multivariate analysis was performed to determine the independent prognostic factors. A total of 44 ATC patients were enrolled in current study. Twelve (50%) out of 24 detected patients had BRAF V600E mutation and eleven received dabrafenib and trametinib treatment. Patients treated with dabrafenib and trametinib had longer overall survival (OS) than the patients without treatment with dabrafenib and trametinib (median OS: 10.4 months vs. 3.3 months, P=0.05). The objective response rate was 81.8% and progress-free survival was 7.4 months. Multivariate analysis identified prior surgery, treatment with dabrafenib and trametinib and metastasis to lung, brain, and bone were significant prognostic factors for OS. The benefit of prior surgery was significant in patients receiving dabrafenib and trametinib (P=0.017) rather than those without dabrafenib and trametinib (P=0.067). The current study provides the real-world evidence that targeted therapy with dabrafenib and trametinib was effective and significantly improved the OS for ATC patients. The role of prior surgery became important in the era of targeted therapy. Future studies should focus on resistance mechanisms and combination with immunotherapy for ATC patients.
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Affiliation(s)
- Ching-Fu Chang
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou and Chang Gung UniversityTaoyuan, Taiwan
| | - Ming-Han Yang
- Department of Oncology, National Taiwan University Hospital, Hsin-Chu BranchTaiwan
| | - Jih-Hsiang Lee
- Department of Oncology, National Taiwan University Hospital, Hsin-Chu BranchTaiwan
| | - Shyang-Rong Shih
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Taiwan University HospitalTaipei, Taiwan
| | - Chia-Hung Lin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Taiwan University Hospital, Hsin-Chu BranchTaiwan
| | - Chiao-Ping Chen
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou and Chang Gung UniversityTaoyuan, Taiwan
| | - Chiao-En Wu
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou and Chang Gung UniversityTaoyuan, Taiwan
| | - Jin-Ying Lu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Taiwan University HospitalTaipei, Taiwan
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Pujol N, Heeke S, Bontoux C, Boutros J, Ilié M, Hofman V, Marquette CH, Hofman P, Benzaquen J. Molecular Profiling in Non-Squamous Non-Small Cell Lung Carcinoma: Towards a Switch to Next-Generation Sequencing Reflex Testing. J Pers Med 2022; 12:1684. [PMID: 36294823 PMCID: PMC9605324 DOI: 10.3390/jpm12101684] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 11/05/2022] Open
Abstract
Molecular diagnosis of lung cancer is a constantly evolving field thanks to major advances in precision oncology. The wide range of actionable molecular alterations in non-squamous non-small cell lung carcinoma (NS-NSCLC) and the multiplicity of mechanisms of resistance to treatment resulted in the need for repeated testing to establish an accurate molecular diagnosis, as well as to track disease evolution over time. While assessing the increasing complexity of the molecular composition of tumors at baseline, as well as over time, has become increasingly challenging, the emergence and implementation of next-generation sequencing (NGS) testing has extensively facilitated molecular profiling in NS-NSCLC. In this review, we discuss recent developments in the molecular profiling of NS-NSCLC and how NGS addresses current needs, as well as how it can be implemented to address future challenges in the management of NS-NSCLC.
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Affiliation(s)
- Nina Pujol
- Centre Antoine-Lacassagne, Department of Radiation Oncology, Côte d’Azur University, 06000 Nice, France
| | - Simon Heeke
- Department of Thoracic/Head and Neck Medical Oncology, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Christophe Bontoux
- Laboratory of Clinical and Experimental Pathology, Côte d’Azur University, Pasteur 1 Hospital, Centre Hospitalier Universitaire de Nice, FHU OncoAge, Biobank BB-0033-00025, 06000 Nice, France
- CNRS UMR 7284, INSERM U1081, Institute of Research on Cancer and Aging, Côte d’Azur University, 06000 Nice, France
| | - Jacques Boutros
- CNRS UMR 7284, INSERM U1081, Institute of Research on Cancer and Aging, Côte d’Azur University, 06000 Nice, France
- Department of Pulmonary Medicine and Thoracic Oncology, Côte d’Azur University, Pasteur 1 Hospital, Centre Hospitalier Universitaire de Nice, FHU OncoAge, 06000 Nice, France
| | - Marius Ilié
- Laboratory of Clinical and Experimental Pathology, Côte d’Azur University, Pasteur 1 Hospital, Centre Hospitalier Universitaire de Nice, FHU OncoAge, Biobank BB-0033-00025, 06000 Nice, France
- CNRS UMR 7284, INSERM U1081, Institute of Research on Cancer and Aging, Côte d’Azur University, 06000 Nice, France
| | - Véronique Hofman
- Laboratory of Clinical and Experimental Pathology, Côte d’Azur University, Pasteur 1 Hospital, Centre Hospitalier Universitaire de Nice, FHU OncoAge, Biobank BB-0033-00025, 06000 Nice, France
- CNRS UMR 7284, INSERM U1081, Institute of Research on Cancer and Aging, Côte d’Azur University, 06000 Nice, France
| | - Charles-Hugo Marquette
- CNRS UMR 7284, INSERM U1081, Institute of Research on Cancer and Aging, Côte d’Azur University, 06000 Nice, France
- Department of Pulmonary Medicine and Thoracic Oncology, Côte d’Azur University, Pasteur 1 Hospital, Centre Hospitalier Universitaire de Nice, FHU OncoAge, 06000 Nice, France
| | - Paul Hofman
- Laboratory of Clinical and Experimental Pathology, Côte d’Azur University, Pasteur 1 Hospital, Centre Hospitalier Universitaire de Nice, FHU OncoAge, Biobank BB-0033-00025, 06000 Nice, France
- CNRS UMR 7284, INSERM U1081, Institute of Research on Cancer and Aging, Côte d’Azur University, 06000 Nice, France
| | - Jonathan Benzaquen
- CNRS UMR 7284, INSERM U1081, Institute of Research on Cancer and Aging, Côte d’Azur University, 06000 Nice, France
- Department of Pulmonary Medicine and Thoracic Oncology, Côte d’Azur University, Pasteur 1 Hospital, Centre Hospitalier Universitaire de Nice, FHU OncoAge, 06000 Nice, France
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Phan DAT, Phung GB, Duong TT, Hoang AV, Ngo QD, Trinh DTN, Tran TT. The Value of BRAF VE1 Immunoexpression in Pediatric Langerhans Cell Histiocytosis. Fetal Pediatr Pathol 2022; 41:558-567. [PMID: 33295826 DOI: 10.1080/15513815.2020.1857483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
IntroductionVE1 is a monoclonal antibody detecting mutant BRAF V600E protein by immunohistochemistry (IHC) with a high concordance rate with molecular analysis in many cancers. Materials and methods: BRAF V600E mutation was assessed on 94 pediatric LCH patients using sequencing analysis and VE1 immunohistochemistry with stringent and lenient-scoring criteria. Results: BRAF V600E mutation exon 15 was detected by sequencing in 47.9% of LCH cases. BRAF V600E mutation rate in multiple-system LCH was 65.2%, significantly higher than in single-system LCH (p = .001). VE1 assays showed 35.6% sensitivity, 75.5% specificity (Stringent criteria), and 91.1% sensitivity, 35.7% specificity (Lenient criteria). Conclusions: The proportion of BRAF V600E mutational status was relatively high and related to high-risk LCH. Molecular assays for BRAF mutation detection are preferred in LCH lesions. VE1 is not ready as an alternative option for LCH BRAF testing.
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Affiliation(s)
- Dang Anh Thu Phan
- Pathology Department, University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam
| | - Gia Bao Phung
- Pathology Department, City Children Hospital- Ho Chi Minh City, Viet Nam
| | - Thanh Tu Duong
- Pathology Department, University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam
| | - Anh Vu Hoang
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam
| | - Quoc Dat Ngo
- Pathology Department, University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam
| | | | - Thanh Tung Tran
- Pathology Department, Children's Hospital 1- Ho Chi Minh City, Viet Nam
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Hwang I, Choi YL, Lee H, Hwang S, Lee B, Yang H, Chelakkot C, Han J. Selection Strategies and Practical Application of BRAF V600E-mutated Non-Small Cell Lung Carcinoma. Cancer Res Treat 2021; 54:782-792. [PMID: 34844291 PMCID: PMC9296927 DOI: 10.4143/crt.2021.843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 10/18/2021] [Indexed: 11/30/2022] Open
Abstract
Purpose The incidence of BRAF V600E mutation in non–small cell lung carcinoma (NSCLC) is lower than 2%, which poses difficulties in finding legitimate patients for targeted therapy. We investigated the predictive factors pertaining to BRAF V600E and the effectiveness of the VE1 antibody as a screening method for patient selection. Materials and Methods The study was designed into two steps. In a first group, BRAF-mutated NSCLCs were identified from sequencing data to determine the features of BRAF V600E mutation. The results of the first group helped the collection of adenocarcinomas with a papillary or micropapillary pattern but without epidermal growth factor receptor (EGFR) or anaplastic lymphoma kinase (ALK) alterations as a second group so that the frequency of BRAF V600E mutation could be calculated. The sensitivity and specificity of the VE1 were compared with BRAF V600E status. Results Among 39 BRAF-mutated NSCLCs in the first group, 20 (51%) were V600E. BRAF V600E mutation was more common in female patients and showed no significant correlation with smoking status. Nineteen cases were adenocarcinomas without EGFR and ALK alterations. The most common patterns of invasion were papillary and micropapillary along with central fibrosis. The sensitivity and specificity of the VE1 were 90.0% and 92.3%, respectively. In the second group, 6.7% of cases were VE1-positive, indicating that the prevalence was significantly higher than that reported in previous studies (0.3%–1.8%). Conclusion BRAF V600E-mutated NSCLCs could be enriched with the application of clinicopathologic parameters, which are not perfect. Therefore, additional VE1 immunohistochemistry may be useful as a screening method.
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Affiliation(s)
- Inwoo Hwang
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yoon-La Choi
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University School of Medicine, Seoul, Korea.,Lab of Cancer Genomics and Molecular Pathology, Samsung Medical Center, Seoul, Korea
| | - Hyunwoo Lee
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Soohyun Hwang
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Boram Lee
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hobin Yang
- Research Institute of Pharmaceutical Sciences and College of Pharmacy, Seoul National University, Seoul, Korea
| | | | - Joungho Han
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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11
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Li N, Xu Y, Fan Y. [Current Advance in Targeted Treatment and Immunotherapy for BRAF-mutant
Advanced Non-small Cell Lung Cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2021; 24:714-722. [PMID: 34696543 PMCID: PMC8560979 DOI: 10.3779/j.issn.1009-3419.2021.101.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
随着精准医学的发展,靶向驱动基因的治疗显著改善了晚期非小细胞肺癌(non-small cell lung cancer, NSCLC)患者的预后和生活质量。其中鼠类肉瘤病毒癌基因同源物B1(v-raf murine sar-coma viral oncogene homolog B1, BRAF)基因突变的NSCLC较为罕见,传统治疗遵循无驱动基因突变NSCLC的治疗方案,远远没有满足临床需求。近年来,针对BRAF V600E突变NSCLC的靶向治疗疗效显著,其他BRAF突变亚型靶向治疗仍在探索阶段。免疫疗法在BRAF V600E和非V600E亚型的NSCLC中也显示出积极的抗肿瘤活性。本文就BRAF阳性NSCLC患者的靶向和免疫治疗研究进展作一综述。
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Affiliation(s)
- Na Li
- Wenzhou Medical University, Wenzhou 325035, China
| | - Yanjun Xu
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of
Sciences, Hangzhou 310022, China.,Department of Medical Oncology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Medical Oncology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Yun Fan
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of
Sciences, Hangzhou 310022, China.,Department of Medical Oncology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Medical Oncology, Zhejiang Cancer Hospital, Hangzhou 310022, China
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12
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Gow CH, Hsieh MS, Liu YN, Lee YH, Shih JY. Clinicopathological Features and Survival Outcomes of Primary Pulmonary Invasive Mucinous Adenocarcinoma. Cancers (Basel) 2021; 13:cancers13164103. [PMID: 34439256 PMCID: PMC8393953 DOI: 10.3390/cancers13164103] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/09/2021] [Accepted: 08/13/2021] [Indexed: 12/27/2022] Open
Abstract
Simple Summary Pulmonary invasive mucinous adenocarcinoma (IMA) is a recognized variant of lung adenocarcinoma (ADC) that has unique histological patterns. Comprehensively clinical studies and pathological analyses on IMAs have been limited because IMA is rarely diagnosed compared with other subtypes. We compared the clinical characteristics, pathological features, and survival outcomes of 77 IMA patients with 520 non-IMA-type ADC patients. Currently, IMAs lack a simple pathological prognostic grading system to predict survival. We therefore proposed a simple two-tier grading system, which was modified from the low- and high-grade PanIN grading system, to evaluate its prognostic value. We found that IMAs have more distinct clinicopathological characteristics compared to non-IMA-type ADCs. For patients with stage I–IIIA IMA, a new two-tier grading system might be useful in predicting recurrence-free survival. We demonstrated that stage I and II IMAs have better overall survival compared with non-IMA-type ADCs. Abstract Pulmonary invasive mucinous adenocarcinoma (IMA) has unique histological patterns. This study aimed to comprehensively evaluate the clinicopathological features, prognosis, and survival outcomes of IMAs. We retrospectively identified 77 patients with pulmonary IMA and reviewed their clinical and pathological features. Another 520 patients with non-IMA-type ADC were retrieved for comparison with patients with IMA. A new two-tier grading system (high-grade and low-grade IMAs) modified from the pancreatic intraepithelial neoplasia classification system was used for survival analyses. Compared to patients with non-IMA-type ADC, patients with IMA tended to have never smoked (p = 0.01) and had early-stage IMA at initial diagnosis (p < 0.001). For stage I–II diseases, the five-year overall survival (OS) rates were 76% in IMAs and 50% in non-IMA-type ADCs, and a longer OS was observed in patients with IMA (p = 0.002). KRAS mutations were the most commonly detected driver mutations, which occurred in 12 of the 28 (43%) patients. High-grade IMAs were associated with a shorter recurrence-free survival (RFS) for stage I–IIIA diseases (p = 0.010) than low-grade IMAs but not for OS. In conclusion, patients with stage I and II IMA had better OS than those with non-IMA-type ADC. A new two-tier grading system might be useful for predicting RFS in stage I–IIIA IMAs.
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Affiliation(s)
- Chien-Hung Gow
- Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City 220216, Taiwan;
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei 100225, Taiwan;
- Department of Healthcare Information and Management, Ming-Chuan University, Taoyuan 333321, Taiwan
| | - Min-Shu Hsieh
- Department of Pathology, National Taiwan University Hospital, Taipei 100225, Taiwan; (M.-S.H.); (Y.-H.L.)
| | - Yi-Nan Liu
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei 100225, Taiwan;
- Graduate Institute of Clinical Medicine, National Taiwan University, Taipei 100225, Taiwan
| | - Yi-Hsuan Lee
- Department of Pathology, National Taiwan University Hospital, Taipei 100225, Taiwan; (M.-S.H.); (Y.-H.L.)
| | - Jin-Yuan Shih
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei 100225, Taiwan;
- Graduate Institute of Clinical Medicine, National Taiwan University, Taipei 100225, Taiwan
- Department of Medical Research, National Taiwan University Hospital, Taipei 100225, Taiwan
- Correspondence: ; Tel.: +886-2-23562905
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13
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Rashid FA, Tabassum S, Khan MS, Ansari HR, Asif M, Sheikh AK, Sameer Aga S. VE1 immunohistochemistry is an adjunct tool for detection of BRAF V600E mutation: Validation in thyroid cancer patients. J Clin Lab Anal 2020; 35:e23628. [PMID: 33305405 PMCID: PMC7891529 DOI: 10.1002/jcla.23628] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/09/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022] Open
Abstract
Papillary thyroid carcinoma (PTC) is the most common endocrine malignancy among other endocrine tumors, and BRAFV600E is a frequent genetic mutation occurring in the disease. Although different molecular techniques, most importantly sequencing has been widely recognized as a gold standard but molecular diagnosis remains an expensive, laborious, and time‐intensive process. Recently, immunohistochemistry (IHC) with anti‐BRAF V600E (VE1) antibody has increased practical utility and implemented clinically for the detection of BRAFV600E mutation. Therefore, the study aimed to evaluate diagnostic accuracy of VE1 IHC for detecting the BRAFV600E mutation frequency and clinical implementation in diagnostic laboratories. In this study, 72 formalin fixed paraffin‐embedded tissues (FFPE) were used to determine the BRAFV600E mutation status using IHC and Sanger sequencing. The mutation was found in 29% and 28% cases using IHC and Sanger sequencing, respectively. Furthermore, the results showed 100% sensitivity, 98.07% specificity, 95.2% positive predictive value, and 100% negative predictive value. Notably, significant associations were found between BRAFV600E status and tumor stage, tumor focality, and extrathyroidal extensions, respectively. VE1 IHC was found to be a highly sensitive, specific, and diagnostically accurate method in this cohort. Therefore, BRAFV600E detection through IHC has been considered as the best tailored technique for routine pathology laboratories.
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Affiliation(s)
- Faiza A. Rashid
- Department of Biological SciencesInternational Islamic UniversityIslamabadPakistan
| | - Sobia Tabassum
- Department of Biological SciencesInternational Islamic UniversityIslamabadPakistan
| | - Mosin S. Khan
- Government Medical College Srinagar and Associated SMHS and Superspeciality HospitalSrinagarIndia
| | - Hifzur R. Ansari
- King Abdullah International Medical Research CenterKing Saud bin Abdulaziz University for Health SciencesMinistry of National Guard Health AffairsJeddahSaudi Arabia
| | - Muhammad Asif
- Department of HistopathologyArmed Forces Institute of Pathologycentral Military HospitalRawalpindiPakistan
| | - Ahmareen K. Sheikh
- Department of PathologyPakistan Institute of Medical SciencesIslamabadPakistan
| | - Syed Sameer Aga
- Basic Medical SciencesCollege of Medicine‐ JeddahKing Saud bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research CenterMinistry of National Guard Health AffairsJeddahKingdom of Saudi Arabia
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14
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Lung J, Hung MS, Lin YC, Jiang YY, Fang YH, Lu MS, Hsieh CC, Wang CS, Kuan FC, Lu CH, Chen PT, Lin CM, Chou YL, Lin CK, Yang TM, Chen FF, Lin PY, Hsieh MJ, Tsai YH. A highly sensitive and specific real-time quantitative PCR for BRAF V600E/K mutation screening. Sci Rep 2020; 10:16943. [PMID: 33037234 PMCID: PMC7547094 DOI: 10.1038/s41598-020-72809-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023] Open
Abstract
Mutations that lead to constitutive activation of key regulators in cellular processes are one of the most important drivers behind vigorous growth of cancer cells, and are thus prime targets in cancer treatment. BRAF V600E mutation transduces strong growth and survival signals for cancer cells, and is widely present in various types of cancers including lung cancer. A combination of BRAF inhibitor (dabrafenib) and MEK inhibitor (trametinib) has recently been approved and significantly improved the survival of patients with advanced NSCLC harboring BRAF V600E/K mutation. To improve the detection of BRAF V600E/K mutation and investigate the incidence and clinicopathological features of the mutation in lung cancer patients of southern Taiwan, a highly sensitive and specific real-time quantitative PCR (RT-qPCR) method, able to detect single-digit copies of mutant DNA, was established and compared with BRAF V600E-specific immunohistochemistry. Results showed that the BRAF V600E mutation was present at low frequency (0.65%, 2/306) in the studied patient group, and the detection sensitivity and specificity of the new RT-qPCR and V600E-specific immunohistochemistry both reached 100% and 97.6%, respectively. Screening the BRAF V600E/K mutation with the RT-qPCR and V600E-specific immunohistochemistry simultaneously could help improve detection accuracy.
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Affiliation(s)
- Jrhau Lung
- Department of Medical Research and Development, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Ming-Szu Hung
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Respiratory Care, Chang Gung University of Science and Technology, Chiayi Campus, Chiayi, Taiwan
| | - Yu-Ching Lin
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Respiratory Care, Chang Gung University of Science and Technology, Chiayi Campus, Chiayi, Taiwan
| | - Yuan Yuan Jiang
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Yu-Hung Fang
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Ming-Shian Lu
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Ching-Chuan Hsieh
- Department of General Surgery, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Chia-Siu Wang
- Department of General Surgery, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Feng-Che Kuan
- Department of Hematology and Oncology, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Chang-Hsien Lu
- Department of Hematology and Oncology, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Ping-Tsung Chen
- Department of Hematology and Oncology, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Chieh-Mo Lin
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Yen-Li Chou
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Chin-Kuo Lin
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Tsung-Ming Yang
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Fen Fen Chen
- Department of Pathology, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
| | - Paul Yann Lin
- Department of Anatomic Pathology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan
| | - Meng-Jer Hsieh
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan
- Department of Respiratory Care, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ying Huang Tsai
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Chiayi, Taiwan.
- Department of Respiratory Care, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
- Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Linkou Branch, Linkou, Taiwan.
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15
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Malapelle U, Rossi G, Pisapia P, Barberis M, Buttitta F, Castiglione F, Cecere FL, Grimaldi AM, Iaccarino A, Marchetti A, Massi D, Medicina D, Mele F, Minari R, Orlando E, Pagni F, Palmieri G, Righi L, Russo A, Tommasi S, Vermi W, Troncone G. BRAF as a positive predictive biomarker: Focus on lung cancer and melanoma patients. Crit Rev Oncol Hematol 2020; 156:103118. [PMID: 33038627 DOI: 10.1016/j.critrevonc.2020.103118] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/25/2020] [Accepted: 09/28/2020] [Indexed: 02/06/2023] Open
Abstract
In the era of personalized medicine, BRAF mutational assessment is mandatory in advanced-stage melanoma and non-small cell lung cancer (NSCLC) patients. The identification of actionable mutations is crucial for the adequate management of these patients. To date various drugs have been implemented in clinical practice. Similarly, various methods may be adopted for the identification of BRAF mutations. Here, we briefly review the current literature on BRAF in melanoma and NSCLC, focusing attention in particular on the different methods and drugs adopted in these patients. In addition, an overview of the real-world practice in different Italian laboratories with high expertise in molecular predictive pathology testing is provided.
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Affiliation(s)
- Umberto Malapelle
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Giulio Rossi
- Pathology Unit, Azienda USL Romagna, St. Maria delle Croci Hospital, Ravenna, Italy
| | - Pasquale Pisapia
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Massimo Barberis
- Unit of Histopathology and Molecular Diagnostics, European Institute of Oncology IRCCS, Milano, Italy
| | - Fiamma Buttitta
- Center for Advanced Studies and Technology (CAST) - Department of Medical, Oral and Biotechnological Sciences, University of Chieti, Italy
| | - Francesca Castiglione
- Section of Anatomic Pathology, Department of Health Sciences, University of Florence, Florence, Italy
| | | | - Antonio Maria Grimaldi
- Unit of Melanoma, Cancer Immunotherapy and Development Therapeutics, Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Italy
| | - Antonino Iaccarino
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Antonio Marchetti
- Center for Advanced Studies and Technology (CAST) - Department of Medical, Oral and Biotechnological Sciences, University of Chieti, Italy
| | - Daniela Massi
- Section of Anatomic Pathology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Daniela Medicina
- Section of Pathology, Asst Spedali Civili di Brescia, Brescia, Italy
| | - Fabio Mele
- Pathology Department, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - Roberta Minari
- Medical Oncology Unit, University Hospital of Parma, Parma, Italy
| | - Elisabetta Orlando
- Department of Health Promotion, Mother and Child care, Internal Medicine and Medical Specialties (ProMISE), Unit of Anatomic Pathology, University of Palermo, Palermo, Italy
| | - Fabio Pagni
- Department of Medicine and Surgery, Pathology, University Milan Bicocca, Milan, Italy
| | - Giuseppe Palmieri
- Unit of Cancer Genetics, Institute of Genetic and Biomedical Research (IRGB), National Research Council (CNR), Sassari, Italy
| | - Luisella Righi
- Department of Oncology, San Luigi Hospital, University of Turin, Turin, Italy
| | | | - Stefania Tommasi
- Pathology Department, IRCCS-Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - William Vermi
- Section of Pathology, Asst Spedali Civili di Brescia, Brescia, Italy
| | - Giancarlo Troncone
- Department of Public Health, University of Naples Federico II, Naples, Italy.
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16
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Roy-Chowdhuri S. Immunocytochemistry of cytology specimens for predictive biomarkers in lung cancer. Transl Lung Cancer Res 2020; 9:898-905. [PMID: 32676355 PMCID: PMC7354113 DOI: 10.21037/tlcr.2019.12.31] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
With a growing number of predictive biomarkers that have emerged in non-small cell lung carcinoma (NSCLC), there has been a paradigm shift in the management of these patients. Of the various predictive biomarker testing methods, immunohistochemistry (IHC) is the most widely available, cost-effective, and commonly used methods. However, most predictive IHC assays are validated primarily on formalin-fixed paraffin-embedded (FFPE) histologic tissue samples and translating these assays to cytologic specimens requires additional and rigorous validation. This is part due to the lack of standardized processing protocols in cytology resulting in a variety of preanalytic variables that can impact the antigenicity of antibodies used for predictive biomarker testing. The review article discusses the various preanalytical and analytical factors that impact immunocytochemistry (ICC) in cytologic specimens and summarizes the current published literature on ALK, ROS1, PD-L1, and other predictive biomarker ICC in cytology.
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Affiliation(s)
- Sinchita Roy-Chowdhuri
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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17
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Frisone D, Friedlaender A, Malapelle U, Banna G, Addeo A. A BRAF new world. Crit Rev Oncol Hematol 2020; 152:103008. [PMID: 32485528 DOI: 10.1016/j.critrevonc.2020.103008] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/23/2020] [Indexed: 12/18/2022] Open
Abstract
BRAF is a rare targetable mutation in non-small-cell lung cancer (NSCLC). Emerging evidence underlines that, rather than a single point mutation, BRAF genes present with a wide array of mutations, essentially in lung adenocarcinoma. Different BRAF mutations have divergent clinical and therapeutic implications, with a particular distinction between V600E and non-V600E mutations. The latter are at least as frequent in NSCLC as V600E, but lack any proven targeted therapy. In this paper, we briefly review the current literature and provide an update of scientific knowledge about different types of BRAF mutations in NSCLC.
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Affiliation(s)
- Daniele Frisone
- IOSI - Oncology Institute of Southern Switzerland, Switzerland
| | | | - Umberto Malapelle
- Department of Public Health, University Federico II of Naples (Naples), Italy
| | - Giuseppe Banna
- Department of Oncology, United Lincolnshire Hospital Trust, UK
| | - Alfredo Addeo
- Department of Oncology, Geneva University Hospital, Switzerland.
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18
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Seto K, Haneda M, Masago K, Fujita S, Kato S, Sasaki E, Hosoda W, Murakami Y, Kuroda H, Horio Y, Hida T, Okubo K, Yatabe Y. Negative reactions ofBRAFmutation‐specific immunohistochemistry tonon‐V600Emutations ofBRAF. Pathol Int 2020; 70:253-261. [DOI: 10.1111/pin.12903] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 12/30/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Katsutoshi Seto
- Department of Pathology and Molecular DiagnosticsAichi Cancer Center Hospital Aichi Japan
- Department of Thoracic SurgeryTokyo Medical and Dental University Tokyo Japan
| | - Masataka Haneda
- Department of Pathology and Molecular DiagnosticsAichi Cancer Center Hospital Aichi Japan
| | - Katsuhiro Masago
- Department of Pathology and Molecular DiagnosticsAichi Cancer Center Hospital Aichi Japan
| | - Shiro Fujita
- Department of Pathology and Molecular DiagnosticsAichi Cancer Center Hospital Aichi Japan
| | - Seiichi Kato
- Department of Pathology and Molecular DiagnosticsAichi Cancer Center Hospital Aichi Japan
| | - Eiichi Sasaki
- Department of Pathology and Molecular DiagnosticsAichi Cancer Center Hospital Aichi Japan
| | - Waki Hosoda
- Department of Pathology and Molecular DiagnosticsAichi Cancer Center Hospital Aichi Japan
| | - Yoshiko Murakami
- Department of Pathology and Molecular DiagnosticsAichi Cancer Center Hospital Aichi Japan
| | - Hiroaki Kuroda
- Department of Thoracic SurgeryAichi Cancer Center Hospital Aichi Japan
| | - Yoshitsugu Horio
- Department of Thoracic OncologyAichi Cancer Center Hospital Aichi Japan
| | - Toyoaki Hida
- Department of Thoracic OncologyAichi Cancer Center Hospital Aichi Japan
| | - Kenichi Okubo
- Department of Thoracic SurgeryTokyo Medical and Dental University Tokyo Japan
| | - Yasushi Yatabe
- Department of Pathology and Molecular DiagnosticsAichi Cancer Center Hospital Aichi Japan
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19
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Immunohistochemical Study Using Monoclonal VE1 Antibody Can Substitute the Molecular Tests for Apprehension of BRAF V600E Mutation in Patients with Non-small-Cell Lung Carcinoma. Anal Cell Pathol (Amst) 2019; 2019:2315673. [PMID: 31781475 PMCID: PMC6874948 DOI: 10.1155/2019/2315673] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 10/08/2019] [Accepted: 10/14/2019] [Indexed: 12/20/2022] Open
Abstract
In patients with non-small-cell lung carcinoma (NSCLC), the analysis of BRAF V600E mutation has become more and more applied since the introduction of many mutation-targeted medications. In this regard, the advantage of immunohistochemistry (IHC) as a reliable diagnostic test substitute to other molecular studies has not been approved yet. Objective. To examine the dependability of using immunohistochemical method utilizing monoclonal VE1 antibody in the detection of BRAF V600 E mutation in patients with non-small-cell lung carcinoma and compare the results there with that of polymerase chain reaction (SSCP-PCR). Materials and Methods. We retrospectively identified 53 patients of whom their histopathological diagnosis was non-small-cell carcinoma of different types. Evaluation of BRAF V600E mutation was assessed using polymerase chain reaction (SSCP-PCR) and IHC using VE1 antibody. This approach was applied to all cases under the study. Results. Among the 53 NSCLC samples, only 5 (9.3%) cases harbored BRAF V600E mutation, 80% were of adenocarcinoma type, and the rest (20%) was of squamous cell carcinoma. IHC analysis for VE1 was positive in 4 out of 5 (80%) BRAF-mutated tumors and negative in all nonmutated BRAF V600 E NSCLC. Conclusion. Our results revealed that VE1 antibody IHC analysis is a promising technique that can be used to detect BRAF V600-mutated NSCLC with relatively high specificity and sensitivity and might become a potential alternative to the current molecular biological methods that are in use for this purpose.
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