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https://www.readbyqxmd.com/read/28421869/alk-protein-expression-in-pulmonary-adenocarcinoma-of-tunisian-patients
#1
Amira Toumi Arfaoui, Ahlem Blel, Aloui Raoudha, Fatnassi Ghaya, Ben Ammar Jihane, Nadia Znaidi, Yosra Zidi, Mohammed Sadok Boudaya, Hichem Aouina, Rammeh Rommani Soumaya
BACKGROUND: It is now necessary to determine ALK status in order to use targeted therapy. AIM: herein, we assess immunohistochemical profile of ALK protein in a series of Tunisian patients with pulmonary adenocarcinoma. MATERIALS AND METHODS: ALK protein expression was studied applying the D5F3 antibody with a fully automated Ventana CDx technique on a series of 19 patients. RESULTS: Positive ALK expression was found in one case (5...
April 19, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28416875/hawberry-crataegus-monogyna-jaqc-extracts-inhibit-lipid-oxidation-and-improve-consumer-liking-of-ready-to-eat-rte-pork-patties
#2
T Akcan, M Estévez, S Rico, S Ventanas, D Morcuende
The objective of this work was to study the effectiveness of extracts from hawberry (Crataegus monogyna Jacq.) to inhibit lipid oxidation and odor deterioration during processing of ready-to-eat (RTE) pork patties subjected to roasting (180 °C/16 min), chilling (10 days/+3 °C) and reheating in microwave (600 mW/1 min). Acetone extracts of hawberry were chosen based on their total phenolic content (1281.1 ± 84.8 mg gallic acid equivalent (GAE)/100 g fruit) and in vitro antiradical activity (DPPH) (53...
April 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28387924/high-number-of-kinome-mutations-in-non-small-cell-lung-cancer-is-associated-with-reduced-immune-response-and-poor-relapse-free-survival
#3
Å Helland, O T Brustugun, S Nakken, A R Halvorsen, T Dønnem, R Bremnes, L T Busund, J Sun, S Lorenz, S K Solberg, L H Jørgensen, D Vodak, O Myklebost, E Hovig, L A Meza-Zepeda
Lung cancer is the leading cause of cancer related death, and the past years' improved insight into underlying molecular events has significantly improved outcome for specific subsets of patients. In particular, several new therapies that target protein kinases have been implemented, and many more are becoming available. We have investigated lung cancer specimens for somatic mutations in a targeted panel of 612 human genes, the majority being protein kinases. The somatic mutation profiles were correlated to profiles of immune cell infiltration as well as relapse-free survival...
April 7, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28382224/recutclub-com-an-open-source-whole-slide-image-based-pathology-education-system
#4
Paul A Christensen, Nathan E Lee, Michael J Thrall, Suzanne Z Powell, Patricia Chevez-Barrios, S Wesley Long
BACKGROUND: Our institution's pathology unknown conferences provide educational cases for our residents. However, the cases have not been previously available digitally, have not been collated for postconference review, and were not accessible to a wider audience. Our objective was to create an inexpensive whole slide image (WSI) education suite to address these limitations and improve the education of pathology trainees. MATERIALS AND METHODS: We surveyed residents regarding their preference between four unique WSI systems...
2017: Journal of Pathology Informatics
https://www.readbyqxmd.com/read/28316074/a-comparison-of-alk-gene-rearrangement-and-alk-protein-expression-in-primary-lung-carcinoma-and-matched-metastasis
#5
Humberto E Trejo Bittar, Alyssa Luvison, Caitlyn Miller, Sanja Dacic
AIMS: The 2013 CAP/IASLC/AMP guideline for EGFR and ALK testing in lung carcinoma indicates that either the primary tumor or the metastasis is suitable for testing. The heterogeneity of gene mutations has been extensively studied, while similar reports on gene rearrangements are limited. The aim of this study was to determine if ALK status between primary tumor and matched metastasis differs. METHODS AND RESULTS: 15 ALK-FISH rearranged and 19 non-ALK-FISH rearranged adenocarcinomas were retrospectively collected based on availability of tissue from a matched metastatic site...
March 17, 2017: Histopathology
https://www.readbyqxmd.com/read/28278348/a-prospective-multi-institutional-pathologist-based-assessment-of-4-immunohistochemistry-assays-for-pd-l1-expression-in-non-small-cell-lung-cancer
#6
David L Rimm, Gang Han, Janis M Taube, Eunhee S Yi, Julia A Bridge, Douglas B Flieder, Robert Homer, William W West, Hong Wu, Anja C Roden, Junya Fujimoto, Hui Yu, Robert Anders, Ashley Kowalewski, Christopher Rivard, Jamaal Rehman, Cory Batenchuk, Virginia Burns, Fred R Hirsch, Ignacio I Wistuba
Importance: Four assays registered with the US Food and Drug Administration (FDA) detect programmed cell death ligand 1 (PD-L1) to enrich for patient response to anti-programmed cell death 1 and anti-PD-L1 therapies. The tests use 4 separate PD-L1 antibodies on 2 separate staining platforms and have their own scoring systems, which raises questions about their similarity and the potential interchangeability of the tests. Objective: To compare the performance of 4 PD-L1 platforms, including 2 FDA-cleared assays, 1 test for investigational use only, and 1 laboratory-developed test...
March 9, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28183714/dichotomous-alk-ihc-is-a-better-predictor-for-alk-inhibition-outcome-than-traditional-alk-fish-in-advanced-non-small-cell-lung-cancer
#7
Anthonie van der Wekken, Rianne Pelgrim, Nils 't Hart, Naomi Werner, Mirjam Mastik, Lizza Hendriks, Erik Hfm van der Heijden, Monika Looijen-Salamon, A Joop de Langen, Jeske Staal-van den Brekel, Sietske Riemersma, Ben E van den Borne, Ernst-Jan M Speel, Anne-Marie C Dingemans, T Jeroen N Hiltermann, Anke van den Berg, Wim Timens, Ed Schuuring, Harry Jm Groen
ALK rearrangement detection using fluorescence in situ hybridization (FISH) is the standard test to identify non-small cell lung carcinoma (NSCLC) patients eligible for treatment with ALK inhibitors. Recently ALK protein expression in resectable NSCLC showed predictive value. We evaluated tumor response rate and survival after crizotinib treatment of advanced NSCLC patients with ALK activation using both dichotomous immunohistochemical staining (IHC) and FISH. Design Stage IV NSCLC patients treated with crizotinib were selected...
February 9, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28174489/alk-gene-expression-status-in-pleural-effusion-predicts-tumor-responsiveness-to-crizotinib-in-chinese-patients-with-lung-adenocarcinoma
#8
Zheng Wang, Xiaonan Wu, Xiaohong Han, Gang Cheng, Xinlin Mu, Yuhui Zhang, Di Cui, Chang Liu, Dongge Liu, Yuankai Shi
OBJECTIVE: The relationship between anaplastic lymphoma kinase (ALK) expression in malignant pleural effusion (MPE) samples detected only by Ventana immunohistochemistry (IHC) ALK (D5F3) and the efficacy of ALK-tyrosine kinase inhibitor therapy is uncertain. METHODS: Ventana anti-ALK (D5F3) rabbit monoclonal primary antibody testing was performed on 313 cell blocks of MPE samples from Chinese patients with advanced lung adenocarcinoma, and fluorescence in situ hybridization (FISH) was used to verify the ALK gene status in Ventana IHC ALK (D5F3)-positive samples...
December 2016: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28173673/-ventana-xt-automated-immunohistochemical-staining-machine-applications-and-trouble-shooting-use-and-the-problems-in-the-solution
#9
X Z Huang, L X Zhou, X H Li
No abstract text is available yet for this article.
February 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28150468/ciliated-muconodular-papillary-tumor-of-the-lung-harboring-alk-gene-rearrangement-case-report-and-review-of-the-literature
#10
REVIEW
Yan Jin, Xuxia Shen, Lei Shen, Yihua Sun, Haiquan Chen, Yuan Li
Ciliated muconodular papillary tumor (CMPT) of the lung is an extremely rare peripheral tumor of the lung. The pathogenesis of CMPT is still unknown, and its nature as a benign tumor or reactive process is still open to discussion. Recent studies have identified BRAF, EGFR and AKT1 mutations in CMPT, which would support a true neoplastic process. Here for the first time, we report a case of morphologically typical CMPT harboring ALK gene rearrangement to further provide convincing evidence that CMPT is a neoplastic process rather than a reactive lesion...
March 2017: Pathology International
https://www.readbyqxmd.com/read/28147239/a-sensitive-alk-immunohistochemistry-companion-diagnostic-test-identifies-patients-eligible-for-treatment-with-crizotinib
#11
Trish Thorne-Nuzzo, Crystal Williams, Alice Catallini, June Clements, Shalini Singh, James Amberson, Kim Dickinson, Zoran Gatalica, Steffan N Ho, Isabell Loftin, Abigail McElhinny, Penny Towne
INTRODUCTION: The availability of high-quality, rigorously validated diagnostic tests that can be broadly implemented is necessary to efficiently identify patients with anaplastic lymphoma kinase (ALK)-positive NSCLC who can potentially benefit from treatment with crizotinib. Here we present data on the recently approved Ventana ALK (D5F3) CDx Assay (Ventana Medical Systems, Tucson, AZ), the only immunohistochemistry (IHC)-based assay linked to treatment outcome. METHODS: NSCLC specimens prospectively tested for anaplastic lymphoma receptor tyrosine kinase gene (ALK) status by flourescent in situ hybridization (FISH) in the PROFILE 1014 clinical trial of crizotinib versus chemotherapy (N = 1018, including 179 ALK-positive and 754 ALK-negative specimens) were evaluated using the ALK (D5F3) CDx assay...
January 29, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28145884/the-significance-of-programmed-cell-death-ligand-1-expression-in-resected-lung-adenocarcinoma
#12
Shafei Wu, Xiaohua Shi, Jian Sun, Yuanyuan Liu, Yufeng Luo, Zhiyong Liang, Jinghui Wang, Xuan Zeng
BACKGROUND: Lung adenocarcinoma (AD) is a common variant of non-small cell lung cancer (NSCLC). Programmed cell death protein 1/programmed cell death ligand 1 (PD1/PD-L1) are promising immunotherapy targets and its expression may be an important biomarker of predicting clinical response. In this study, we evaluated PD-L1 expression in conjunction with clinicopathological characteristics and outcomes in resected lung adenocarcinoma. RESULTS: This study included 133 cases of lung adenocarcinoma...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28081478/pulmonary-sarcomatoid-carcinoma-with-alk-rearrangement-frequency-clinical-pathologic-characteristics-and-response-to-alk-inhibitor
#13
Xinru Chen, Yu Zhang, Jiabin Lu, Chunwei Xu, Jianzhong Liang, Fang Wang, Wenyong Sun, Sangao Fang, Jingping Yuan, Huijuan Wang, Hui Wang, Xuewen Liu, Likun Chen
PURPOSE: The incidence of anaplastic lymphoma kinase (ALK) rearrangement in pulmonary sarcomatoid carcinoma (PSC) is controversial. In this study, we aimed to reveal the reliable frequency and the clinical-pathologic characteristics of pulmonary sarcomatoid carcinoma (PSC) with ALK rearrangement in Chinese population, and to provide insight into the translatability of anti-ALK treatment in this treatment-refractory disease. METHODS: Immunohistochemistry (IHC) using a Ventana anti-ALK (D5F3) rabbit monoclonal antibody was performed in 141 PSC specimens collected from multiple medical centers...
April 2017: Translational Oncology
https://www.readbyqxmd.com/read/28073845/agreement-between-programmed-cell-death-ligand-1-diagnostic-assays-across-multiple-protein-expression-cut-offs-in-non-small-cell-lung-cancer
#14
Marianne J Ratcliffe, Alan Sharpe, Anita Midha, Craig Barker, Marietta Scott, Paul Scorer, Hytham Al-Masri, Marlon Rebelatto, Jill Walker
PURPOSE: agents:Immunotherapies targeting programmed cell death-1 (PD-1) and programmed cell death ligand-1 (PD-L1) demonstrate encouraging antitumor activity and manageable tolerability in non-small cell lung cancer (NSCLC), especially in patients with high tumor PD-L1 expression, as detected by companion or complementary diagnostic assays developed for individual agents. A laboratory is unlikely to use multiple assay platforms. Furthermore, commercially available diagnostic assays are not standardized and different assay methods could lead to inappropriate treatment selection...
January 10, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28053840/no-detection-of-episomal-or-integrated-high-risk-human-papillomavirus-in-nonsmall-cell-lung-carcinomas-among-korean-population
#15
Jeong Eun Lee, Yong-Moon Lee, In-Ock Seong, Min-Woong Kang, Choong Sik Lee, Kyung-Hee Kim
OBJECTIVES: High-risk human papillomavirus (hrHPV) is known to be a representative cancer-causing agent in the genital and head and neck regions. Many studies have detected hrHPV DNA in nonsmall cell lung carcinoma. However, hrHPV-etiologic correlation in nonsmall cell lung carcinoma remains unclear. This study is designed to determine the prevalence of episomal or integrated hrHPV DNA in nonsmall cell lung carcinoma among the Korean population. METHODS: Surgically resected nonsmall cell lung carcinoma tissues, including 134 cases of squamous cell carcinoma (SqCC) and 99 cases of adenocarcinoma (ADC), were examined...
December 2016: Osong Public Health and Research Perspectives
https://www.readbyqxmd.com/read/27993946/anaplastic-lymphoma-kinase-expression-and-gene-alterations-in-glioblastoma-correlations-with-clinical-outcome
#16
George Karagkounis, George Stranjalis, Theodore Argyrakos, Varvara Pantelaion, Konstantinos Mastoris, Dimitra Rontogianni, Spyridon Komaitis, Theodosis Kalamatianos, Damianos Sakas, Dina Tiniakos
AIMS: To study anaplastic lymphoma kinase (ALK) protein expression and possible underlying gene alterations in glioblastoma (GBM), correlating them with clinical outcome. METHODS: We studied ALK immunohistochemical expression and fluorescent in situ hybridisation (FISH)-detected ALK gene alterations in 51 GBMs (46 isocitrate dehydrogenase-1 (IDH1)(R132H)-negative and 5 IDH-mutant (IDH1(R132H)-positive)). We compared two anti-ALK antibodies and immunohistochemical detection systems (5Α4/Nichirei Biosciences, D5F3/Ventana)...
December 19, 2016: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27918764/effect-of-fluorouracil-leucovorin-and-oxaliplatin-with-or-without-onartuzumab-in-her2-negative-met-positive-gastroesophageal-adenocarcinoma-the-metgastric-randomized-clinical-trial
#17
Manish A Shah, Yung-Jue Bang, Florian Lordick, Maria Alsina, Meng Chen, Stephen P Hack, Jean Marie Bruey, Dustin Smith, Ian McCaffery, David S Shames, See Phan, David Cunningham
Importance: Dysregulation of the mesenchymal-epithelial transition (MET) signaling pathway is associated with poor prognosis in gastroesophageal adenocarcinoma (GEC). We report results of METGastric, a phase 3 trial of the MET inhibitor onartuzumab plus standard first-line chemotherapy for human epidermal growth factor receptor 2 (HER2)-negative, MET-positive, advanced GEC. Objective: To determine whether the addition of onartuzumab to first-line fluorouracil, leucovorin, and oxaliplatin (mFOLFOX6) improves efficacy compared with mFOLFOX6 plus placebo in HER2-negative, MET-positive GEC...
December 1, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/27879019/screening-for-alk-abnormalities-in-central-nervous-system-metastases-of-non-small-cell-lung-cancer-alk-abnormalities-in-cns-metastases-of-nsclc
#18
Marcin Nicoś, Bożena Jarosz, Paweł Krawczyk, Kamila Wojas-Krawczyk, Tomasz Kucharczyk, Marek Sawicki, Juliusz Pankowski, Tomasz Trojanowski, Janusz Milanowski
Anaplastic lymphoma kinase (ALK) gene rearrangement was reported in 3-7% of primary non-small-cell lung cancer (NSCLC) and its presence is commonly associated with adenocarcinoma (AD) type and non-smoking history. ALK tyrosine kinase inhibitors (TKIs) such as crizotinib, alectinib and ceritinib showed efficiency in patients with primary NSCLC harboring ALK gene rearrangement. Moreover, response to ALK TKIs was observed in central nervous system (CNS) metastatic lesions of NSCLC. However, there are no reports concerning the frequency of ALK rearrangement in CNS metastases...
November 23, 2016: Brain Pathology
https://www.readbyqxmd.com/read/27877008/detection-of-alk-translocation-in-non-small-cell-lung-carcinoma-nsclc-and-its-clinicopathological-significance-using-the-ventana-immunohistochemical-staining-method-a-single-center-large-scale-investigation-of-1-504-chinese-han-patients
#19
Lin Yang, Yun Ling, Lei Guo, Di Ma, Xuemin Xue, Bingning Wang, Junling Li, Jianming Ying
OBJECTIVE: The novel fully automated immunohistochemistry (IHC) assay-Ventana anaplastic lymphoma kinase (ALK)-D5F3 for screening ALK rearrangements has been approved by China's Food and Drug Administration in 2013, our previous study disclosed a highly specificity and sensitivity nearly 100%, and its efficacy needs to be evaluated in a large cohort of primary lung adenocarcinoma patients, and to compare clinicopathological features with ALK (+) and ALK (-) lung adenocarcinoma. METHODS: A total of 1,504 consecutive surgical lung adenocarcinoma cases of Chinese Han population were collected and re-diagnosed according to the 2011 multidisciplinary classification of lung adenocarcinoma...
October 2016: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/27863476/is-immunohistochemistry-of-braf-v600e-useful-as-a-screening-tool-and-during-progression-disease-of-melanoma-patients
#20
Laura Schirosi, Sabino Strippoli, Francesca Gaudio, Giusi Graziano, Ondina Popescu, Michele Guida, Giovanni Simone, Anita Mangia
BACKGROUND: In clinical practice the gold standard method to assess BRAF status in patients with metastatic melanoma is based on molecular assays. Recently, a mutation-specific monoclonal antibody (VE1), which detects the BRAF V600E mutated protein, has been developed. With this study we aimed to confirm the clinical value of the VE1 Ventana® antibody, as today a univocal validated and accredited immunohistochemical procedure does not exist, to preliminary detect BRAF status in our routine diagnostic procedures...
November 18, 2016: BMC Cancer
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