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SKI gene and cancer

Myoung-Sun Lee, Seon-Ok Lee, Kyu-Ri Kim, Hyo-Jeong Lee
Hypoxia enhances cancer development in a solid tumor. Hypoxia-inducible factor-1 α (HIF-1α) is a transcription factor that is dominantly expressed under hypoxia in solid tumor cells and is a key factor that regulates tumor. HIF-1α regulates several target genes involved in many aspects of cancer progression, including angiogenesis, metastasis, anti-apoptosis and cell proliferation as well as imparts resistance to cancer treatment. In this study, we assessed Crataegus Pinnatifida Bunge var. typical Schneider ethanol extract (CPE) for its anti-cancer effects in hypoxia-induced DU145 human prostate cancer cell line...
February 4, 2017: International Journal of Molecular Sciences
Yojiro Makino, Jeong-Hwan Yoon, Eunjin Bae, Mitsuyasu Kato, Keiji Miyazawa, Tatsuo Ohira, Norihiko Ikeda, Masahiko Kuroda, Mizuko Mamura
Cancer-associated inflammation develops resistance to the epidermal growth-factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) in non-small cell lung cancers (NSCLCs) harboring oncogenic EGFR mutations. Stat3-mediated interleukin (IL)-6 signaling and Smad-mediated transforming growth factor-β (TGF-β) signaling pathways play crucial regulatory roles in cancer-associated inflammation. However, mechanisms how these pathways regulate sensitivity and resistance to EGFR-TKI in NSCLCs remain largely undetermined...
January 20, 2017: Biochemical and Biophysical Research Communications
Matthew North, Brandon D Gaytán, Carlos Romero, Vanessa Y De La Rosa, Alex Loguinov, Martyn T Smith, Luoping Zhang, Chris D Vulpe
Formaldehyde (FA) is a commercially important chemical with numerous and diverse uses. Accordingly, occupational and environmental exposure to FA is prevalent worldwide. Various adverse effects, including nasopharyngeal, sinonasal, and lymphohematopoietic cancers, have been linked to FA exposure, prompting designation of FA as a human carcinogen by U.S. and international scientific entities. Although the mechanism(s) of FA toxicity have been well studied, additional insight is needed in regard to the genetic requirements for FA tolerance...
2016: Frontiers in Genetics
Deepa Rajamani, Manoj K Bhasin
BACKGROUND: Pancreatic cancer is an aggressive cancer with dismal prognosis, urgently necessitating better biomarkers to improve therapeutic options and early diagnosis. Traditional approaches of biomarker detection that consider only one aspect of the biological continuum like gene expression alone are limited in their scope and lack robustness in identifying the key regulators of the disease. We have adopted a multidimensional approach involving the cross-talk between the omics spaces to identify key regulators of disease progression...
May 3, 2016: Genome Medicine
Hong Liu, Cai-Xia Zhang, Yan Ma, Hong-Wei He, Jia-Ping Wang, Rong-Guang Shao
AIM: Sphingosine 1-phosphate (S1P) promotes cell growth, proliferation and survival. Sphingosine kinase 1 (SphK1), which converts sphingosine to S1P, is a key promoter in cancer. We previously found that the SphK1 inhibitor II (SKI II), suppresses the cell growth and induces apoptosis in human hepatoma HepG2 cells. However, the precise regulatory mechanism and signaling pathway on SKI II inhibiting tumor growth remains unknown. MAIN METHODS: The expressions of β-catenin and related molecules of Wnt/β-catenin signal were detected by western blot in HepG2 cells...
April 15, 2016: Life Sciences
Xian Qin, Yajun Wan, Saiying Wang, Min Xue
BACKGROUND: In this study, we intended to understand the regulatory mechanisms of microRNA-125a-5p (miR-125a-5p) in human cervical carcinoma. METHODS: The gene expressions of miR-125a-5p in seven cervical carcinoma cell lines and 12 human cervical carcinoma samples were evaluated by quantitative real-time reverse transcription polymerase chain reaction. Ca-Ski and HeLa cells were transduced with lentivirus carrying miR-125a-5p mimics, and the effects of lentivirus-induced miR-125a-5p upregulation on cervical carcinoma proliferation and migration were examined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and transwell assays, respectively...
2016: Drug Design, Development and Therapy
Dan Zhang, Hexia Xia, Wei Zhang, Bo Fang
Epithelial ovarian cancer is the most common and lethal gynecological cancer in USA and around the world, causing major mortality annually. In the current study, we investigated the potential anti-ovarian cancer activity of WYE-132, a mammalian target of rapamycin (mTOR) complex 1/2 (mTORC1/2) dual inhibitor. Our results showed that WYE-132 potently inhibited proliferation of primary and established human ovarian cancer cells. Meanwhile, WYE-132 induced caspase-dependent apoptosis in ovarian cancer cells. At the molecular level, WYE-132 blocked mTORC1/2 activation and inhibited expression of mTOR-regulated genes (cyclin D1 and hypoxia-inducible factor 1α)...
January 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Waldemar Wagner, Wojciech M Ciszewski, Katarzyna D Kania
BACKGROUND: The consideration of lactate as an active metabolite is a newly emerging and attractive concept. Recently, lactate has been reported to regulate gene transcription via the inhibition of histone deacetylases (HDACs) and survival of cancer cells via hydroxycarboxylic acid receptor 1 (HCAR1). This study examined the role of L- and D-lactate in the DNA damage response in cervical cancer cells. METHODS: Three cervical cancer cell lines were examined: HeLa, Ca Ski and C33A...
2015: Cell Communication and Signaling: CCS
Mark D Allen, Stefan M V Freund, Giovanna Zinzalla, Mark Bycroft
SWI/SNF complexes use the energy of ATP hydrolysis to remodel chromatin. In mammals they play a central role in regulating gene expression during differentiation and proliferation. Mutations in SWI/SNF subunits are among the most frequent gene alterations in cancer. The INI1/hSNF5/SMARCB1 subunit is mutated in both malignant rhabdoid tumor, a highly aggressive childhood cancer, and schwannomatosis, a tumor-predisposing syndrome characterized by mostly benign tumors of the CNS. Here, we show that mutations in INI1 that cause schwannomatosis target a hitherto unidentified N-terminal winged helix DNA binding domain that is also present in the BAF45a/PHF10 subunit of the SWI/SNF complex...
July 7, 2015: Structure
Kamil Oleński, Małgorzata Tokarska, Dorota Hering, Paulina Puckowska, Anna Ruść, Cino Pertoldi, Stanisław Kamiński
BACKGROUND: About 5-6% of the European bison (Bison bonasus) males are affected by posthitis (necrotic inflammation of the prepuce) and die in the wild forest. Despite many years of study, pathogenesis of this disease has not yet been determined. The main aim of the study was to find SNP markers significantly associated with the incidence of posthitis and mine the genome for candidate genes potentially involved in the development of the disease. RESULTS: It was shown that relatively small number of SNPs effects reached genome-wide significance after false discovery rate (FDR) correction...
2015: Biology Direct
Li-Di Xu, Susanne Muller, Srinivasan R Thoppe, Fredrik Hellborg, Lena Kanter, Mikael Lerner, Biying Zheng, Svetlana Bajalica Lagercrantz, Dan Grandér, Keng Ling Wallin, Klas G Wiman, Catharina Larsson, Sonia Andersson
The p53 target gene WIG-1 (ZMAT3) is located in chromosomal region 3q26, that is frequently amplified in human tumors, including cervical cancer. We have examined the status of WIG-1 and the encoded Wig-1 protein in cervical carcinoma cell lines and tumor tissue samples. Our analysis of eight cervical cancer lines (Ca Ski, ME-180, MS751, SiHa, SW756, C-4I, C-33A, and HT-3) by spectral karyotype, comparative genomic hybridization and Southern blotting revealed WIG-1 is not the primary target for chromosome 3 gains...
2014: PloS One
Oana Mihaela Tudoran, Olga Soritau, Loredana Balacescu, Laura Pop, Guillaume Meurice, Simona Visan, Staffan Lindberg, Alexandru Eniu, Ulo Langel, Ovidiu Balacescu, Ioana Berindan-Neagoe
The platelet-derived growth factor (PDGF) signalling pathway has been reported to play an important role in human cancers by modulating autocrine and paracrine processes such as tumour growth, metastasis and angiogenesis. Several clinical trials document the benefits of targeting this pathway; however, in cervical cancer the role of PDGF signalling in still unclear. In this study, we used siRNA against PDGF beta (PDGFBB) to investigate the cellular and molecular mechanisms of PDGFBB signalling in Ca Ski and HeLa cervical cancer cells...
February 2015: Journal of Cellular and Molecular Medicine
Arpita Datta, Ser Yue Loo, Baohua Huang, Lingkai Wong, Sheryl S L Tan, Tuan Zea Tan, Soo-Chin Lee, Jean Paul Thiery, Yaw Chyn Lim, Wei Peng Yong, Yulin Lam, Alan Prem Kumar, Celestial T Yap
Triple-negative breast cancer (TNBC) is characterized by unique aggressive behavior and lack of targeted therapies. Among the various molecular subtypes of breast cancer, it was observed that TNBCs express elevated levels of sphingosine kinase 1 (SPHK1) compared to other breast tumor subtypes. High levels of SPHK1 gene expression correlated with poor overall and progression- free survival, as well as poor response to Doxorubicin-based treatment. Inhibition of SPHK1 was found to attenuate ERK1/2 and AKT signaling and reduce growth of TNBC cells in vitro and in a xenograft SCID mouse model...
August 15, 2014: Oncotarget
Arpita Datta, Ser Yue Loo, Baohua Huang, Lingkai Wong, Sheryl S L Tan, Tuan Zea Tan, Soo-Chin Lee, Jean Paul Thiery, Yaw Chyn Lim, Wei Peng Yong, Yulin Lam, Alan Prem Kumar, Celestial T Yap
Triple-negative breast cancer (TNBC) is characterized by unique aggressive behavior and lack of targeted therapies. Among the various molecular subtypes of breast cancer, it was observed that TNBCs express elevated levels of sphingosine kinase 1 (SPHK1) compared to other breast tumor subtypes. High levels of SPHK1 gene expression correlated with poor overall and progression- free survival, as well as poor response to Doxorubicin-based treatment. Inhibition of SPHK1 was found to attenuate ERK1/2 and AKT signaling and reduce growth of TNBC cells in vitro and in a xenograft SCID mouse model...
March 27, 2014: Oncotarget
Longwang Wang, Mei Zhang, Yong Wu, Cheng Cheng, Yawei Huang, Zimin Shi, Hongwei Huang
The Ski-interacting protein (SKIP) is a transcriptional cofactor distinct from other cofactors and is involved in regulation of many cancer-related proteins. However, its distribution and clinical significances in bladder cancer remains poorly understood. In this study, Quantitative real-time PCR and immunohistochemistry were performed to detect the expression of SKIP in clinical bladder cancer samples. In addition, the correlation of SKIP expression and clinicopathological features and clinical outcomes were analyzed...
2014: International Journal of Clinical and Experimental Pathology
Bridget Charbonneau, Kirsten B Moysich, Kimberly R Kalli, Ann L Oberg, Robert A Vierkant, Zachary C Fogarty, Matthew S Block, Matthew J Maurer, Krista M Goergen, Brooke L Fridley, Julie M Cunningham, David N Rider, Claudia Preston, Lynn C Hartmann, Kate Lawrenson, Chen Wang, Jonathan Tyrer, Honglin Song, Anna deFazio, Sharon E Johnatty, Jennifer A Doherty, Catherine M Phelan, Thomas A Sellers, Starr M Ramirez, Allison F Vitonis, Kathryn L Terry, David Van Den Berg, Malcolm C Pike, Anna H Wu, Andrew Berchuck, Aleksandra Gentry-Maharaj, Susan J Ramus, Brenda Diergaarde, Howard Shen, Allan Jensen, Janusz Menkiszak, Cezary Cybulski, Jan Lubiłski, Argyrios Ziogas, Joseph H Rothstein, Valerie McGuire, Weiva Sieh, Jenny Lester, Christine Walsh, Ignace Vergote, Sandrina Lambrechts, Evelyn Despierre, Montserrat Garcia-Closas, Hannah Yang, Louise A Brinton, Beata Spiewankiewicz, Iwona K Rzepecka, Agnieszka Dansonka-Mieszkowska, Petra Seibold, Anja Rudolph, Lisa E Paddock, Irene Orlow, Lene Lundvall, Sara H Olson, Claus K Hogdall, Ira Schwaab, Andreas du Bois, Philipp Harter, James M Flanagan, Robert Brown, James Paul, Arif B Ekici, Matthias W Beckmann, Alexander Hein, Diana Eccles, Galina Lurie, Laura E Hays, Yukie T Bean, Tanja Pejovic, Marc T Goodman, Ian Campbell, Peter A Fasching, Gottfried Konecny, Stanley B Kaye, Florian Heitz, Estrid Hogdall, Elisa V Bandera, Jenny Chang-Claude, Jolanta Kupryjanczyk, Nicolas Wentzensen, Diether Lambrechts, Beth Y Karlan, Alice S Whittemore, Hoda Anton Culver, Jacek Gronwald, Douglas A Levine, Susanne K Kjaer, Usha Menon, Joellen M Schildkraut, Celeste Leigh Pearce, Daniel W Cramer, Mary Anne Rossing, Georgia Chenevix-Trench, Paul D P Pharoah, Simon A Gayther, Roberta B Ness, Kunle Odunsi, Lara E Sucheston, Keith L Knutson, Ellen L Goode
The presence of regulatory T cells (Treg) in solid tumors is known to play a role in patient survival in ovarian cancer and other malignancies. We assessed inherited genetic variations via 749 tag single-nucleotide polymorphisms (SNP) in 25 Treg-associated genes (CD28, CTLA4, FOXP3, IDO1, IL10, IL10RA, IL15, 1L17RA, IL23A, IL23R, IL2RA, IL6, IL6R, IL8, LGALS1, LGALS9, MAP3K8, STAT5A, STAT5B, TGFB1, TGFB2, TGFB3, TGFBR1, TGRBR2, and TGFBR3) in relation to ovarian cancer survival. We analyzed genotype and overall survival in 10,084 women with invasive epithelial ovarian cancer, including 5,248 high-grade serous, 1,452 endometrioid, 795 clear cell, and 661 mucinous carcinoma cases of European descent across 28 studies from the Ovarian Cancer Association Consortium (OCAC)...
April 2014: Cancer Immunology Research
Rachael Thomas, Luke Borst, Daniel Rotroff, Alison Motsinger-Reif, Kerstin Lindblad-Toh, Jaime F Modiano, Matthew Breen
Canine hemangiosarcoma is a highly aggressive vascular neoplasm associated with extensive clinical and anatomical heterogeneity and a grave prognosis. Comprehensive molecular characterization of hemangiosarcoma may identify novel therapeutic targets and advanced clinical management strategies, but there are no published reports of tumor-associated genome instability and disrupted gene dosage in this cancer. We performed genome-wide microarray-based somatic DNA copy number profiling of 75 primary intra-abdominal hemangiosarcomas from five popular dog breeds that are highly predisposed to this disease...
September 2014: Chromosome Research
Huawei Jiang, Chengmeng Jin, Jie Liu, Dasong Hua, Fan Zhou, Xiaoyan Lou, Na Zhao, Qing Lan, Qiang Huang, Jae-Geun Yoon, Shu Zheng, Biaoyang Lin
Glioblastoma (GBM) proliferation is a multistep process during which the expression levels of many genes that control cell proliferation, cell death, and genetic stability are altered. MicroRNAs (miRNAs) are emerging as important modulators of cellular signaling, including cell proliferation in cancer. In this study, using next generation sequencing analysis of miRNAs, we found that miR-127-3p was downregulated in GBM tissues compared with normal brain tissues; we validated this result by RT-PCR. We further showed that DNA demethylation and histone deacetylase inhibition resulted in downregulation of miR-127-3p...
March 2014: Omics: a Journal of Integrative Biology
Xiaobing Liu, Qichao Ni, Junfei Xu, Chenyi Sheng, Qingqing Wang, Jinpeng Chen, Shuyun Yang, Hua Wang
Ski-interacting protein (SKIP) is a nuclear hormone receptor-interacting cofactor, interactions with the proto-oncogene Ski, appears to modulate a number of signalling pathways involved in control of cell proliferation and differentiation, and may play a critical role in oncogenesis. In the present study, to investigate the potential roles of SKIP in breast cancer, expression patterns, interaction and the correlation with clinical/prognostic factors of SKIP and Ki-67 were examined among patients with breast cancer...
April 2014: Journal of Molecular Histology
Xiu-Fen Liu, Laiman Xiang, David J FitzGerald, Ira Pastan
Recombinant immunotoxins (RIT) are agents being developed for cancer treatment. They are composed of an Fv that binds to a cancer cell, fused to a 38-kDa fragment of Pseudomonas exotoxin A. SS1P is a RIT that targets mesothelin, a protein expressed on mesothelioma as well as pancreatic, ovarian, lung, and other cancers. Because the protein tyrosine kinase family regulates a variety of cellular processes and pathways, we hypothesized that tyrosine kinases might regulate susceptibility to immunotoxin killing...
January 2014: Molecular Cancer Therapeutics
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