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https://www.readbyqxmd.com/read/28644144/meta-analysis-of-the-clinical-characteristics-and-prognostic-relevance-of-notch1-and-fbxw7-mutation-in-t-cell-acute-lymphoblastic-leukemia
#1
Rong-Bin Liu, Jian-Gui Guo, Tian-Ze Liu, Cheng-Cheng Guo, Xin-Xiang Fan, Xiao Zhang, Xiu-Yu Cai, Wei-Han Hu
The NOTCH1 signaling pathway is crucial for T-cell development, and NOTCH1 and/or FBXW7 mutations are frequently detected in T-cell acute lymphoblastic leukemia (T-ALL). We performed a systematic review and meta-analysis of 18 randomized controlled trials (RCTs) to assess the prognostic impact of mutations in the NOTCH1 pathway. After retrieving relevant articles from PubMed, EMBASE, and the Cochrane Library, we investigated overall survival (OS) and event-free survival (EFS) with hazard ratios (HRs) using fixed-effects or random-effects models and conducted subgroup analyses based on population and mutation status...
June 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28619094/morphologic-and-molecular-study-of-lung-cancers-associated-with-idiopathic-pulmonary-fibrosis-and-other-pulmonary-fibroses
#2
Alice Guyard, Claire Danel, Nathalie Théou-Anton, Marie-Pierre Debray, Laure Gibault, Pierre Mordant, Yves Castier, Bruno Crestani, Gérard Zalcman, Hélène Blons, Aurélie Cazes
BACKGROUND: Primitive lung cancers developed on lung fibroses are both diagnostic and therapeutic challenges. Their incidence may increase with new more efficient lung fibrosis treatments. Our aim was to describe a cohort of lung cancers associated with idiopathic pulmonary fibrosis (IPF) and other lung fibrotic disorders (non-IPF), and to characterize their molecular alterations using immunohistochemistry and next-generation sequencing (NGS). METHODS: Thirty-one cancer samples were collected from 2001 to 2016 in two French reference centers for pulmonary fibrosis - 18 for IPF group and 13 for non-IPF group...
June 15, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28581676/comprehensive-genomic-profiling-of-different-subtypes-of-nasopharyngeal-carcinoma-reveals-similarities-and-differences-to-guide-targeted-therapy
#3
Siraj M Ali, Ming Yao, Jicheng Yao, Jing Wang, Yuwei Cheng, Alexa B Schrock, Gung-Wei Chirn, Hui Chen, Shuo Mu, Laurie Gay, Julia A Elvin, James Suh, Vincent A Miller, Philip J Stephens, Jeffrey S Ross, Kai Wang
BACKGROUND: To date, no targeted therapy has been approved for nasopharyngeal carcinoma (NPC), and this underscores the need for an in-depth understanding of clinically relevant genomic alterations (CRGAs). METHODS: Comprehensive genomic profiling was performed for 190 NPC patients, including 20 patients with nasopharyngeal adenocarcinoma (NPAC), 62 patients with nasopharyngeal squamous cell carcinoma (NPSCC), and 108 patients with nasopharyngeal undifferentiated carcinoma (NPUC)...
June 5, 2017: Cancer
https://www.readbyqxmd.com/read/28581525/ck1%C3%AE-gsk3%C3%AE-fbxw7%C3%AE-axis-promotes-degradation-of-the-znf322a-oncoprotein-to-suppress-lung-cancer-progression
#4
S-Y Liao, C-W Chiang, C-H Hsu, Y-T Chen, J Jen, H-F Juan, W-W Lai, Y-C Wang
Overexpression of Cys2His2 zinc-finger 322A (ZNF322A) oncogenic transcription factor is associated with lung tumorigenesis. However, the mechanism of ZNF322A overexpression remains poorly understood. Here, we discover that protein stability of ZNF322A is regulated by coordinated phosphorylation and ubiquitination through the CK1δ/GSK3β/FBXW7α axis. CK1δ and GSK3β kinases sequentially phosphorylate ZNF322A at serine-396 and then serine-391. Moreover, the doubly phosphorylated ZNF322A protein creates a destruction motif for the ubiquitin ligase FBXW7α leading to ZNF322A protein destruction...
June 5, 2017: Oncogene
https://www.readbyqxmd.com/read/28575849/the-nucleocytoplasmic-translocation-and-up-regulation-of-ing5-protein-in-breast-cancer-a-potential-target-for-gene-therapy
#5
Xiao-Qing Ding, Shuang Zhao, Lei Yang, Xin Zhao, Gui-Feng Zhao, Shu-Peng Zhao, Zhi-Jie Li, Hua-Chuan Zheng
Here, we found that ING5 overexpression resulted in a lower proliferation, reduced glucose metabolism, S arrest, decreased migration and invasion, apoptotic induction, fat accumulation, autophagy, senescence and mesenchymal-epithelial-transition of breast cancer cells. It also suppressed the tumor growth of breast cancer cells by inhibiting proliferation, inducing apoptosis and autophagy. ING5-mediated chemoresistance was positively linked to Akt and NF-κB activation, MRP1 and GST-π overexpression, and FBXW7 hypoexpression...
May 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28573215/molecular-histologic-and-radiologic-findings-of-high-grade-invasive-adenocarcinoma-arising-in-oncocytic-subtype-of-intraductal-papillary-mucinous-neoplasm-a-case-report-and-review-of-literature
#6
Jared Shows, Christan Bartsch, Heather Carmichael, Irfan Qureshi, Barish Edil, Hubert Fenton
Background: We present a case of adenocarcinoma arising in the oncocytic subtype of intraductal papillary mucinous neoplasm (O-IPMN), with emphasis on the molecular findings in the adenocarcinoma component. Tissue microdissection and next-generation sequencing were performed using a 26 gene panel (AKT1, ALK, APC, BRAF, CDH1, CTNNB1, EGFR, ERBB2, FBXW7, FGFR2, FOXL2, GNAQ, GNAS, KIT, KRAS, MAP2K1, MET, MSH6, NRAS, PDGFRA, PIK3CA, PTEN, SMAD4, SRC, STK11, TP53) of cancer-related genes. Case Presentation: A 69-year-old Caucasian female presented with chest pain and was found to have findings consistent with acute pancreatitis...
2017: J Pancreat Cancer
https://www.readbyqxmd.com/read/28548125/next-generation-sequencing-based-molecular-characterization-of-primary-urinary-bladder-adenocarcinoma
#7
Somak Roy, Dinesh Pradhan, Wayne L Ernst, Stephanie Mercurio, Yana Najjar, Rahul Parikh, Anil V Parwani, Reetesh K Pai, Rajiv Dhir, Marina N Nikiforova
Primary bladder adenocarcinoma is a rare and aggressive tumor with poor clinical outcomes and no standard of care therapy. Molecular biology of this tumor is unknown due to the lack of comprehensive molecular profiling studies. The study aimed to identify genomic alterations of clinical and therapeutic significance using next-generation sequencing and compare genomic profile of primary bladder adenocarcinoma with that of high-grade urothelial carcinoma and colorectal adenocarcinoma. A cohort of 15 well-characterized primary bladder adenocarcinoma was subjected to targeted next-generation sequencing for the identification of mutations and copy-number changes in 51 cancer-related genes...
May 26, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28536037/identification-of-molecular-targets-in-vulvar-cancers
#8
Marguerite L Palisoul, Mary M Mullen, Rebecca Feldman, Premal H Thaker
OBJECTIVES: To identify molecular alterations that contribute to vulvar cancer pathogenesis with the intent of identifying molecular targets for treatment. METHODS: After retrospective analysis of a database of molecularly-profiled gynecologic cancer patients, 149 vulvar cancer patients were included and tested centrally at a CLIA laboratory (Caris Life Sciences, Phoenix, AZ). Tests included one or more of the following: gene sequencing (Sanger or next generation sequencing [NGS]), protein expression (immunohistochemistry [IHC]), and gene amplification (C/FISH)...
May 20, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28522256/sporadic-early-onset-diffuse-gastric-cancers-have-high-frequency-of-somatic-cdh1-alterations-but-low-frequency-of-somatic-rhoa-mutations-compared-with-late-onset-cancers
#9
Soo Young Cho, Jun Won Park, Yang Liu, Young Soo Park, Ju Hee Kim, Hanna Yang, Hyejin Um, Woo Ri Ko, Byung Il Lee, Sun Young Kwon, Seung Wan Ryu, Chae Hwa Kwon, Do Youn Park, Jae-Hyuk Lee, Sang Il Lee, Kyu Sang Song, Hoon Hur, Sang-Uk Han, Heekyung Chang, Su-Jin Kim, Byung-Sik Kim, Jeong-Hwan Yook, Moon-Won Yoo, Beom-Su Kim, In-Seob Lee, Myeong-Cherl Kook, Nina Thiessen, An He, Chip Stewart, Andrew Dunford, Jaegil Kim, Juliann Shih, Gordon Saksena, Andrew D Cherniack, Steven Schumacher, Amaro-Taylor Weiner, Mara Rosenberg, Gad Getz, Eun Gyeong Yang, Min Hee Ryu, Adam J Bass, Hark Kyun Kim
BACKGROUND & AIMS: Early-onset gastric cancer, which develops in younger patients than most gastric cancers, is usually detected at advanced stages, has diffuse histologic features, and occurs more frequently in women. We investigated somatic genomic alterations associated with the unique characteristics of sporadic diffuse gastric cancers (DGCs) from younger patients. METHODS: We conducted whole exome and RNA sequence analyses of 80 resected DGC samples from patients 45 years old or younger in Korea...
May 15, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28521468/poor-prognosis-in-cholangiocarcinoma-patients-with-low-fbxw7-expression-is-improved-by-chemotherapy
#10
Norihiro Ishii, Kenichiro Araki, Takehiko Yokobori, Akira Watanabe, Mariko Tsukagoshi, Norio Kubo, Hideki Suzuki, Fumiyoshi Saito, Bolag Altan, Yasuo Hosouchi, Ken Shirabe, Hiroyuki Kuwano
The tumor suppressor FBXW7 has been demonstrated to degrade several oncoproteins, including c-Myc. Although low FBXW7 expression levels are suggested to be a poor prognostic factor in a number of types of solid tumor, the role of FBXW7 in chemosensitivity is controversial. The purpose of the present study was to determine whether FBXW7 expression may be used as a marker for poor prognosis and chemosensitivity in patients with cholangiocarcinoma (CC). FBXW7 expression was investigated by immunohistochemistry in 100 surgically resected CC samples, and the association between FBXW7 expression, clinicopathological factors and prognosis was evaluated...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28512245/merkel-cell-polyomavirus-small-t-antigen-initiates-merkel-cell-carcinoma-like-tumor-development-in-mice
#11
Monique E Verhaegen, Doris Mangelberger, Paul W Harms, Markus Eberl, Dawn M Wilbert, Julia Meireles, Christopher K Bichakjian, Thomas L Saunders, Sunny Y Wong, Andrzej A Dlugosz
Merkel cell carcinoma (MCC) tumor cells express several markers detected in normal Merkel cells, a nonproliferative population of neuroendocrine cells that arise from epidermis. MCCs frequently contain Merkel cell polyomavirus (MCPyV) DNA and express viral transforming antigens, sT and tLT, but the role of these putative oncogenes in MCC development, and this tumor's cell of origin, are unknown. Using a panel of preterm transgenic mice, we show that epidermis-targeted coexpression of sT and the cell fate-determinant atonal bHLH transcription factor 1 (ATOH1) leads to development of widespread cellular aggregates, with histology and marker expression mimicking that of human intraepidermal MCC...
May 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28507201/sensitivity-of-non-small-cell-lung-cancer-to-erlotinib-is-regulated-by-the-notch-mir-223-fbxw7-pathway
#12
Haiwei Zhang, Fanglin Chen, Yongpeng He, Lin Yi, Chuang Ge, Xiaolong Shi, Chao Tang, Donglin Wang, Yongzhong Wu, Weiqi Nian
Recent evidence supports a role for microRNA-223 (miR-223) in modulating tumor cell sensitivity to chemotherapeutic drugs; however, its role in cellular resistance to the effects of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) used in treatment of non-small cell lung cancer (NSCLC) remains to be elucidated. The levels of miR-223 in parental cell line (HCC827) and erlotinib resistant HCC827 cell line (HCC827/ER)  were detected by qRT-PCR. HCC827/ER cells were treated with MK-2206 to block the Akt signaling pathway or RO4929097 to block the Notch signaling pathway, and then transfected with a miR-223 inhibitor or interference expression plasmid of F-Box/WD repeat-containing protein 7 (FBXW7) or insulin-like growth factor 1 receptor (IGF1R)...
May 15, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28498285/c-myc-and-its-main-ubiquitin-ligase-fbxw7-influence-cell-proliferation-and-prognosis-in-adult-t-cell-leukemia-lymphoma
#13
Yasuhito Mihashi, Mikio Mizoguchi, Yasushi Takamatsu, Kenji Ishitsuka, Hiromi Iwasaki, Monji Koga, Kazunori Urabe, Seiya Momosaki, Toshifumi Sakata, Fumiaki Kiyomi, Morishige Takeshita
Smoldering-type and chronic-type adult T-cell leukemia/lymphomas (ATLL) patients have relatively indolent clinical courses, but often progress into aggressive lymphoma-type and acute-type disease. We examined the roles of transcription factor C-MYC and its ubiquitin ligase FBXW7 in tumor tissues from 137 patients with ATLL. Immunohistochemical tests showed ≥50% of lymphoma cells in 78.7% (48/61) of lymphoma-type, and 64.9% (24/37) of acute-type samples expressed C-MYC, significantly higher than was seen in smoldering-type (3...
May 11, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28487787/ebv-negative-monomorphic-b-cell-posttransplant-lymphoproliferative-disorder-with-marked-morphologic-pleomorphism-and-pathogenic-mutations-in-asxl1-bcor-cdkn2a-nf1-and-tp53
#14
Agata M Bogusz
Posttransplant lymphoproliferative disorders (PTLDs) are a diverse group of lymphoid or plasmacytic proliferations frequently driven by Epstein-Barr virus (EBV). EBV-negative PTLDs appear to represent a distinct entity. This report describes an unusual case of a 33-year-old woman that developed a monomorphic EBV-negative PTLD consistent with diffuse large B-cell lymphoma (DLBCL) 13 years after heart-lung transplant. Histological examination revealed marked pleomorphism of the malignant cells including nodular areas reminiscent of classical Hodgkin lymphoma (cHL) with abundant large, bizarre Hodgkin-like cells...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28464881/fbxw7-expression-is-associated-with-prognosis-and-chemotherapeutic-outcome-in-chinese-patients-with-gastric-adenocarcinoma
#15
Mao-Ran Li, Chun-Chao Zhu, Tian-Long Ling, Ye-Qian Zhang, Jia Xu, En-Hao Zhao, Gang Zhao
BACKGROUND: FBXW7, a component of the Skp-Cullin1-F-box, mediates target protein recognition. It is a tumor suppressor gene that plays a role in the regulation of cell cycle exit and reentry via c-Myc, c-Jun and Notch degradation. There are few studies, particularly involving a large patient cohort, that have evaluated FBXW7 during gastric cancer progression. METHODS: Our study aimed to evaluate the value of FBXW7 as a clinical marker in gastric adenocarcinoma (GC) patients including a subset treated with postoperative chemotherapy...
May 2, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28459460/magea1-interacts-with-fbxw7-and-regulates-ubiquitin-ligase-mediated-turnover-of-nicd1-in-breast-and-ovarian-cancer-cells
#16
J Zhao, Y Wang, C Mu, Y Xu, J Sang
Melanoma-associated antigen A1 (MAGEA1) is member of the MAGE gene family that is expressed in male germ line cells and placenta under normal physiological conditions. Although MAGEA1's expression levels have been evaluated as one of the cancer testis (CT) antigens for immunotherapy in melanoma and several other cancers, its functional role and signaling mechanisms are largely unknown. In this study, we examined the functional involvement and signaling mechanisms of MAGEA1 in breast and ovarian cancer cells...
May 1, 2017: Oncogene
https://www.readbyqxmd.com/read/28447036/recent-translational-research-into-targeted-therapy-for-liposarcoma
#17
REVIEW
Rashi Bharat Patel, Ting Li, Zhichao Liao, Jivani Aakash Jaldeepbhai, H A Pavanika N V Perera, Sujani Kaushalya Muthukuda, Dholiya Hardeep Dhirubhai, Vaibhav Singh, Xiaoling Du, Jilong Yang
Liposarcomas (LPS) are among the most common soft tissue sarcomas, originating from adipocytes. Treatment for LPS typically involves surgical resection and radiation therapy, while the use of conventional cytotoxic chemotherapy for unresectable or metastatic LPS remains controversial. This review summarizes the results of recent translational research and trials of novel therapies targeting various genetic and molecular aberrations in different subtypes of LPS. Genetic aberrations such as the 12q13-15 amplicon, genetic amplification of MDM2, CDK4, TOP2A, PTK7, and CHEK1, point mutations in CTNNB1, CDH1, FBXW7, and EPHA1, as the fusion of FUS-DDIT3/EWSR1-DDIT3 are involved in the pathogenesis LPS and represent potential therapeutic candidates...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28446316/-prognostic-value-of-recurrent-molecular-genetics-and-epigenetics-abnormity-in-t-lymphoblastic-lymphoma-leukemia-review
#18
Wei Guan, Yu Jing, Li Yu
T lymphoblastic lymphoma / leukemia is a strong invasive and has a high incidence of various molecular genetic abnormalities. The NOTCH1 / FBXW7 mutation is one of the most common mutations, and related with good prognosis in T-LBL / ALL. PTEN mutation, a poor prognostic factor, could be overcome by NOTCH1 mutations in pediatric patients to some extent. Patients with MLL gene abnormality and loss of heterozygosity 6q have worse prognosis than those with normal karyotype. The incidence of MLL gene abnormality, RUNX1 mutation and DNMT3A mutation in early precursor T-lymphoblastic leukemia was higher than that of other mature subtypes, which could be used as risk stratification factors...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28442573/cell-cycle-dependent-degradation-of-the-methyltransferase-setd3-attenuates-cell-proliferation-and-liver-tumorigenesis
#19
Xiaoqing Cheng, Yuan Hao, Wenjie Shu, Mengjie Zhao, Chen Zhao, Yuan Wu, Xiaodan Peng, Pinfang Yao, Daibiao Xiao, Guoliang Qing, Zhengying Pan, Lei Yin, Desheng Hu, Hai-Ning Du
Histone modifications, including lysine methylation, are epigenetic marks that influence many biological pathways. Accordingly, many methyltransferases have critical roles in various biological processes, and their dysregulation is often associated with cancer. However, the biological functions and regulation of many methyltransferases are unclear. Here, we report that a human homolog of the methyltransferase SET (SU(var), enhancer of zeste, and trithorax) domain containing 3 (SETD3) is cell cycle-regulated; SETD3 protein levels peaked in S phase and were lowest in M phase...
June 2, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28424412/fbxw7-missense-mutation-a-novel-negative-prognostic-factor-in-metastatic-colorectal-adenocarcinoma
#20
Krittiya Korphaisarn, Van Karlyle Morris, Michael J Overman, David R Fogelman, Bryan K Kee, Kanwal Pratap Singh Raghav, Shanequa Manuel, Imad Shureiqi, Robert A Wolff, Cathy Eng, David Menter, Stanley R Hamilton, Scott Kopetz, Arvind Dasari
BACKGROUND: FBXW7 functions as a ubiquitin ligase tagging multiple dominant oncogenic proteins and commonly mutates in colorectal cancer. Data suggest missense mutations lead to greater loss of FBXW7 function than other gene aberrations do. However, the clinicopathologic factors and outcomes associated with FBXW7 missense mutations in metastatic colorectal cancer (mCRC) have not been described. METHODS: Data were obtained from mCRC patients whose tumors were evaluated by next-generation sequencing for hotspot mutations at The University of Texas MD Anderson Cancer Center...
June 13, 2017: Oncotarget
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