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https://www.readbyqxmd.com/read/27914687/braf-nras-kit-tert-gnaq-gna11-mutation-profile-analysis-of-head-and-neck-mucosal-melanomas-a-study-of-42-cases
#1
Şule Öztürk Sari, İsmaİl Yilmaz, Orhun Çiğ Taşkin, Gİzem Narli, Fatma Şen, Şenol Çomoğlu, Pinar Firat, Bİlge Bİlgİç, Dİlek Yilmazbayhan, Yasemİn Özlük, Nesİmİ Büyükbabanİ
Head and neck mucosal melanoma (HNMuM), which occurs mostly in the sinonasal and oral cavity, constitutes less than 1% of all malignant melanomas. Treatment options fail to improve the prognosis of this aggressive tumour that has low overall survival rates. Thus, development of new targeted therapies is essential. Unfortunately, limited data exist regarding their molecular profile. BRAF, NRAS, KIT, TERT and GNAQ/GNA11 oncogene mutations were investigated in 42 HNMuMs (28 sinonasal, 13 oral, 1 nasopharyngeal)...
November 30, 2016: Pathology
https://www.readbyqxmd.com/read/27904766/the-role-of-pim1-in-the-ibrutinib-resistant-abc-subtype-of-diffuse-large-b-cell-lymphoma
#2
Hsu-Ping Kuo, Scott A Ezell, Sidney Hsieh, Karl J Schweighofer, Leo Wk Cheung, Shiquan Wu, Mutiah Apatira, Mint Sirisawad, Karl Eckert, Yu Liang, Jeff Hsu, Chun-Te Chen, Darrin Beaupre, Betty Y Chang
Diffuse large B cell lymphoma (DLBCL) is a heterogeneous lymphoma and the most common subtype of non-Hodgkin lymphoma, accounting for roughly 30% of newly diagnosed cases in the United States. DLBCL can be separated into the activated B cell-like (ABC) and germinal center B cell-like (GCB) subtypes, with distinct gene expression profiles, oncogenic aberrations, and clinical outcomes. ABC-DLBCL is characterized by chronically active B-cell receptor (BCR) signaling that can be modulated by Bruton's tyrosine kinase (BTK) activity...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27891533/screening-for-cancer-in-persons-living-with-hiv-infection
#3
James J Goedert, H Dean Hosgood, Robert J Biggar, Howard D Strickler, Charles S Rabkin
Survival with human immunodeficiency virus (HIV) infection has greatly improved due to effective antiretroviral therapy (ART). As infectious complications have declined, malignancy now accounts for over one-third of deaths among people living with HIV (PLWH). Based on practices in the general population, cancer screening of PLWH can decrease both morbidity and mortality. In this article, we review and consider directed approaches for colorectal, breast, cervical and lung cancer screening. Furthermore, routine physical examinations may detect lymphomas and skin, anal and oral cancers...
August 2016: Trends in Cancer
https://www.readbyqxmd.com/read/27836716/activity-and-safety-of-brigatinib-in-alk-rearranged-non-small-cell-lung-cancer-and-other-malignancies-a-single-arm-open-label-phase-1-2-trial
#4
Scott N Gettinger, Lyudmila A Bazhenova, Corey J Langer, Ravi Salgia, Kathryn A Gold, Rafael Rosell, Alice T Shaw, Glen J Weiss, Meera Tugnait, Narayana I Narasimhan, David J Dorer, David Kerstein, Victor M Rivera, Timothy Clackson, Frank G Haluska, David Ross Camidge
BACKGROUND: Anaplastic lymphoma kinase (ALK) gene rearrangements are oncogenic drivers of non-small-cell lung cancer (NSCLC). Brigatinib (AP26113) is an investigational ALK inhibitor with potent preclinical activity against ALK mutants resistant to crizotinib and other ALK inhibitors. We aimed to assess brigatinib in patients with advanced malignancies, particularly ALK-rearranged NSCLC. METHODS: In this ongoing, single-arm, open-label, phase 1/2 trial, we recruited patients from nine academic hospitals or cancer centres in the USA and Spain...
November 7, 2016: Lancet Oncology
https://www.readbyqxmd.com/read/27825616/vandetanib-in-patients-with-previously-treated-ret-rearranged-advanced-non-small-cell-lung-cancer-luret-an-open-label-multicentre-phase-2-trial
#5
Kiyotaka Yoh, Takashi Seto, Miyako Satouchi, Makoto Nishio, Noboru Yamamoto, Haruyasu Murakami, Naoyuki Nogami, Shingo Matsumoto, Takashi Kohno, Koji Tsuta, Katsuya Tsuchihara, Genichiro Ishii, Shogo Nomura, Akihiro Sato, Atsushi Ohtsu, Yuichiro Ohe, Koichi Goto
BACKGROUND: RET rearrangements are rare oncogenic alterations in non-small-cell lung cancer (NSCLC). Vandetanib is a multitargeted tyrosine kinase inhibitor exhibiting RET kinase activity. We aimed to assess the efficacy and safety of vandetanib in patients with advanced RET-rearranged NSCLC. METHODS: In this open-label, multicentre, phase 2 trial (LURET), patients with advanced RET-rearranged NSCLC continuously received 300 mg of oral vandetanib daily. RET-positive patients were screened using a nationwide genomic screening network of about 200 participating institutions...
November 4, 2016: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/27808105/hnrnp-l-is-important-for-the-expression-of-oncogene-srsf3-and-oncogenic-potential-of-oral-squamous-cell-carcinoma-cells
#6
Rong Jia, Si Zhang, Miaomiao Liu, Yan Zhang, Yu Liu, Mingwen Fan, Jihua Guo
Oral squamous cell carcinoma (OSCC) is the leading cause of death related to oral diseases. The mechanisms of OSCC development remain largely unknown. Heterogeneous nuclear ribonucleoprotein L (HnRNP L) is a multi-functional splicing factor. It has been reported to be an important regulator of apoptosis. However, the functions of hnRNP L in cancer need to be further explored. In the present study, we found that OSCC tissues expressed significantly higher levels of hnRNP L than normal tissues. Depletion of hnRNP L retarded cell growth, cell migration, and tumorigenesis of OSCC cells...
November 3, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27799794/lenvatinib-and-other-tyrosine-kinase-inhibitors-for-the-treatment-of-radioiodine-refractory-advanced-and-progressive-thyroid-cancer
#7
REVIEW
Loredana Lorusso, Letizia Pieruzzi, Agnese Biagini, Elena Sabini, Laura Valerio, Carlotta Giani, Paolo Passannanti, Benedetta Pontillo-Contillo, Valentina Battaglia, Salvatore Mazzeo, Eleonora Molinaro, Rossella Elisei
Lenvatinib is a small oral molecule able to inhibit three of the extracellular and intracellular molecules involved in the modulation of angiogenesis and lymphangiogenesis: vascular endothelial growth factor receptor 1-3, fibroblast growth factor receptor 1-4, and platelet-derived growth factor receptor alpha. Since it is also able to inhibit the REarranged during Transfection oncogene and the protooncogene c-KIT, this drug can also be used to control tumor cell proliferation. The maximum tolerated dose, as demonstrated in Phase I studies, is 25 mg daily...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27777285/cabozantinib-is-active-against-human-gastrointestinal-stromal-tumor-xenografts-carrying-different-kit-mutations
#8
Yemarshet K Gebreyohannes, Patrick Schöffski, Thomas Van Looy, Jasmien Wellens, Lise Vreys, Jasmien Cornillie, Ulla Vanleeuw, Dana T Aftab, Maria Debiec-Rychter, Raf Sciot, Agnieszka Wozniak
In the majority of gastrointestinal stromal tumors (GIST), oncogenic signaling is driven by KIT mutations. Advanced GIST is treated with tyrosine kinase inhibitors (TKI) such as imatinib. Acquired resistance to TKI is mainly caused by secondary KIT mutations, but can also be attributed to a switch of KIT dependency to another receptor tyrosine kinase (RTK). We tested the efficacy of cabozantinib, a novel TKI targeting KIT, MET, AXL, and vascular endothelial growth factor receptors (VEGFR), in patient-derived xenograft (PDX) models of GIST, carrying different KIT mutations...
December 2016: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/27771077/felis-catus-papillomavirus-type-2-e6-oncogene-enhances-mitogen-activated-protein-kinases-and-akt-activation-but-not-egfr-expression-in-an-in-vitro-feline-model-of-viral-pathogenesis
#9
Gennaro Altamura, Annunziata Corteggio, Giuseppe Borzacchiello
A possible causative role of Felis catus papillomavirus type 2 (FcaPV2) in the development of feline oral and cutaneous squamous cell carcinomas (SCC) has been recently suggested by demonstrating viral gene expression in vivo and transforming properties by its putative oncogenes E6 and E7 in vitro. The activated molecules MEK (pMEK), ERK (pERK) and Akt (pAkt) are signaling transduction effectors regulating cell proliferation and inhibition of apoptosis, which are critical steps towards tumour formation. Here, we show by Western blotting (WB) that expression of FcaPV2 E6 in feline epithelial cells enhances pMEK, pERK and pAkt levels compared to control cells...
November 15, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/27767088/s100a7-has-an-oncogenic-role-in-oral-squamous-cell-carcinoma-by-activating-p38-mapk-and-rab2a-signaling-pathway
#10
K K Dey, R Bharti, G Dey, I Pal, Y Rajesh, S Chavan, S Das, C K Das, B C Jena, P Halder, J G Ray, I Kulavi, M Mandal
Oral cancer consists of squamous cell carcinoma within the oral cavity or on the lip. The clinical prognosis of this cancer is mostly poor owing to delayed diagnosis and a lack of appropriate early detection biomarkers to identify the disease. In the current study, we investigated the role of the S100A7 calcium-binding protein in oral squamous cell carcinoma as an activator of the p38/MAPK and RAB2A signaling pathway. The aim of the present study was to determine whether S100A7 and RAB2A have a role in tumor progression and to assess their potential as early detection biomarkers for oral cancer...
November 2016: Cancer Gene Therapy
https://www.readbyqxmd.com/read/27764170/clinical-implications-of-fadd-gene-amplification-and-protein-overexpression-in-taiwanese-oral-cavity-squamous-cell-carcinomas
#11
Huei-Tzu Chien, Sou-De Cheng, Wen-Yu Chuang, Chun-Ta Liao, Hung-Ming Wang, Shiang-Fu Huang
Amplification of 11q13.3 is a frequent event in human cancers, including head and neck squamous cell carcinoma. This chromosome region contains several genes that are potentially cancer drivers, including FADD (Fas associated via death domain), an apoptotic effector that was previously identified as a novel oncogene in laryngeal/pharyngeal cancer. This study was designed to explore the role of FADD in oral squamous cell carcinomas (OSCCs) samples from Taiwanese patients, by assessing copy number variations (CNVs) and protein expression and the clinical implications of these factors in 339 male OSCCs...
2016: PloS One
https://www.readbyqxmd.com/read/27742160/chemotherapeutic-effects-of-luteolin-on-radio-sensitivity-enhancement-and-interleukin-6-signal-transducer-and-activator-of-transcription-3-signaling-repression-of-oral-cancer-stem-cells
#12
Dom-Gene Tu, Wei-Ting Lin, Cheng-Chia Yu, Shiuan-Shinn Lee, Chih-Yu Peng, Taichen Lin, Chuan-Hang Yu
BACKGROUND/PURPOSE: Previously, we successfully identified oral cancer stem cells (OCSC) displaying enhanced stemness and tumorigenic potentials. In the study, we investigated the chemotherapeutic effect of the flavonoid luteolin, commonly found in fruits and vegetables, on targeting OCSC. METHODS: Oralspheres was applied to isolate OCSC. aldehyde dehydrogenase 1 activity and CD44 positivity of OCSC with luteolin treatment were assessed by flow cytometry analysis...
October 11, 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/27734976/human-papillomavirus-and-head-and-neck-carcinomas-focus-on-evidence-in-the-babel-of-published-data
#13
P Morbini, M Benazzo
Human papillomavirus (HPV)-associated squamous cell carcinoma of the oropharynx is a well-defined entity mostly affecting young to middle-aged male non-smokers. It is generally associated with a favourable outcome, and for this reason a less intensive therapeutic approach has been proposed for this subset of patients. The incidence of HPV-associated oropharyngeal cancers is rapidly increasing in most Western countries, but detailed epidemiological data are not available for the Italian population. Furthermore, among other head and neck regions, a smaller proportion of oral high-grade dysplasia and cancers seems to depend on HPV infection, whereas its role in laryngeal cancer is recognised as less relevant...
August 2016: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/27732948/impact-of-hpv-infection-on-oral-squamous-cell-carcinoma
#14
Carolin Götz, Enken Drecoll, Melanie Straub, Oliver Bissinger, Klaus-Dietrich Wolff, Andreas Kolk
BACKGROUND: Head and neck squamous cell carcinomas (HNSCC) are often divided by their aetiology. Noxae associated collectives are compared with the human papilloma virus (HPV)-associated group, whereas different localisations of oral (OSCC) and oropharyngeal (OPSCC) squamous cell carcinomas are mostly discussed as one single group. Our aim was to show that classification by aetiology is not appropriate for OSCC. RESULTS: HPV DNA was detected by PCR in 7 (3.47%) patients, and we identified 12 (5...
October 6, 2016: Oncotarget
https://www.readbyqxmd.com/read/27729740/characterisation-of-colonic-dysplasia-like-epithelial-atypia-in-murine-colitis
#15
Sarron Randall-Demllo, Ruchira Fernando, Terry Brain, Sukhwinder Singh Sohal, Anthony L Cook, Nuri Guven, Dale Kunde, Kevin Spring, Rajaraman Eri
AIM: To determine if exacerbation of pre-existing chronic colitis in Winnie (Muc2 mutant) mice induces colonic dysplasia. METHODS: Winnie mice and C57BL6 as a genotype control, were administered 1% w/v dextran sulphate sodium (DSS) orally, followed by drinking water alone in week-long cycles for a total of three cycles. After the third cycle, mice were killed and colonic tissue collected for histological and immunohistochemical evaluation. Inflammation and severity of dysplasia in the colonic mucosa were assessed in H&E sections of the colon...
October 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27721761/an-atypical-initial-presentation-of-chronic-myeloid-leukemia-with-central-nervous-system-and-lymph-node-blast-crises
#16
Khadega A Abuelgasim, Saeed Alshieban, Nada A Almubayi, Ayman Alhejazi, Abdulrahman R Jazieh
We describe the case of a young man with therapy-naive chronic myeloid leukemia who did not initially have any peripheral blood or bone marrow excess blasts but presented with extramedullary myeloid blast crises involving the central nervous system and multiple lymph nodes. Conventional cytogenetic tests were positive for t(9;22)(q34:q11) as well as for trisomy 8, 14 and 21 and del(16q). The patient's peripheral blood and bone marrow were positive for the BCR-ABL oncogene when analyzed by fluorescence in situ hybridization and polymerase chain reaction...
May 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/27721019/bay61-3606-potentiates-the-anti-tumor-effects-of-trail-against-colon-cancer-through-up-regulating-dr4-and-down-regulating-nf-%C3%AE%C2%BAb
#17
Jipei Du, Yufang Wang, Degao Chen, Guangyu Ji, Qizhao Ma, Shiping Liao, Yanjiang Zheng, Ji Zhang, Yiping Hou
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is well known for its ability to preferentially induce apoptosis in malignant cells without causing damage to most normal cells. However, inherent and acquired resistance of tumor to TRAIL-induced apoptosis limits its therapeutic applicability. Here we show that the orally available tyrosine kinase inhibitor, BAY61-3606, enhances the sensitivity of human colon cancer cells, especially those harboring active mutations in Kirsten Rat Sarcoma Viral Oncogene Homolog (KRAS) gene, to TRAIL-induced apoptosis in vitro and in vivo...
October 6, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27720656/microrna-375-as-a-biomarker-for-malignant-transformation-in-oral-lesions
#18
Amani M Harrandah, Sarah G Fitzpatrick, Molly H Smith, Dunrui Wang, Donald M Cohen, Edward K L Chan
OBJECTIVE: Malignant transformation of oral premalignant lesions is the key process in the progression to oral squamous cell carcinoma (OSCC). Previously, we identified miR-7 and miR-21 as candidate oncogenes and miR-375 and miR-494 as candidate tumor suppressors in OSCC. We aim to evaluate these microRNAs as biomarkers of malignant transformation in oral premalignant lesions. STUDY DESIGN: Formalin-fixed, paraffin-embedded samples from progressive premalignant lesions and paired sequential OSCC tumors at the same site were obtained from same patients (n = 31)...
December 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27719640/casein-kinase-ii-ck2-as-a-therapeutic-target-for-hematological-malignancies
#19
Chandrika Gowda, Mansi Sachdev, Sunil Muthisami, Malika Kapadia, Lidija Petrovic-Dovat, Melanie Hartman, Yali Ding, Chunhua Song, Jonathon L Payne, Bi-Hua Tan, Sinisa Dovat
BACKGROUND: Casein kinase II (CK2) is a pro-oncogenic protein, which is emerging as a promising therapeutic target in cancer. Recent studies have revealed an important role for CK2 in tumorigenesis. High levels of CK2 are noted in many malignancies including leukemia. Use of CK2 inhibitors in various malignancies including breast, prostate, and lung cancer are being tested. Although many CK2 inhibitors exist, only a few have emerged as selective inhibitors that are potent and effective...
October 6, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27706833/pancreatic-adenocarcinoma-upregulated-factor-has-oncogenic-functions-in-oral-squamous-cell-carcinoma
#20
Tomonori Sasahira, Miyako Kurihara, Yukiko Nishiguchi, Chie Nakashima, Tadaaki Kirita, Hiroki Kuniyasu
AIMS: Pancreatic adenocarcinoma upregulated factor (PAUF) is a novel secretory protein, which promotes tumor progression, metastasis, and poor prognosis in pancreatic, cervical, and colorectal carcinoma. It is also associated with gemcitabine resistance in pancreatic cancer cells. However, the expression and function of PAUF in oral squamous cell carcinoma (OSCC) remain unknown. METHODS AND RESULTS: We performed an immunohistochemical analysis of PAUF in 222 clinicopathologically characterized cases of OSCC...
October 5, 2016: Histopathology
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