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https://www.readbyqxmd.com/read/27914362/an-overview-of-the-binding-models-of-fgfr-tyrosine-kinases-in-complex-with-small-molecule-inhibitors
#1
REVIEW
Weiyan Cheng, Mixiang Wang, Xin Tian, Xiaojian Zhang
The fibroblast growth factor receptor (FGFR) family receptor tyrosine kinase (RTK) includes four structurally related members, termed as FGFR1, FGFR2, FGFR3, and FGFR4. Given its intimate role in the progression of several solid tumors, excessive FGFR signaling provides an opportunity for anticancer therapy. Along with extensive pharmacological studies validating the therapeutic potential of targeting the FGFRs for cancer treatment, co-crystal structures of FGFRs/inhibitors are continuously coming up to study the mechanism of actions and explore new inhibitors...
November 25, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27905513/whole-genome-scanning-for-the-litter-size-trait-associated-genes-and-snps-under-selection-in-dairy-goat-capra-hircus
#2
Fang-Nong Lai, Hong-Li Zhai, Ming Cheng, Jun-Yu Ma, Shun-Feng Cheng, Wei Ge, Guo-Liang Zhang, Jun-Jie Wang, Rui-Qian Zhang, Xue Wang, Ling-Jiang Min, Jiu-Zhou Song, Wei Shen
Dairy goats are one of the most utilized domesticated animals in China. Here, we selected extreme populations based on differential fecundity in two Laoshan dairy goat populations. Utilizing deep sequencing we have generated 68.7 and 57.8 giga base of sequencing data, and identified 12,458,711 and 12,423,128 SNPs in the low fecundity and high fecundity groups, respectively. Following selective sweep analyses, a number of loci and candidate genes in the two populations were scanned independently. The reproduction related genes CCNB2, AR, ADCY1, DNMT3B, SMAD2, AMHR2, ERBB2, FGFR1, MAP3K12 and THEM4 were specifically selected in the high fecundity group whereas KDM6A, TENM1, SWI5 and CYM were specifically selected in the low fecundity group...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27903278/an-overview-on-the-role-of-dietary-phenolics-for-the-treatment-of-cancers
#3
REVIEW
Preethi G Anantharaju, Prathima C Gowda, Manjunatha G Vimalambike, SubbaRao V Madhunapantula
Plant derived phenolic compounds have been shown to inhibit the initiation and progression of cancers by modulating genes regulating key processes such as: (a) oncogenic transformation of normal cells; (b) growth and development of tumors; and (c) angiogenesis and metastasis. Recent studies focusing on identifying the molecular basis of plant phenolics-induced cancer cell death have demonstrated down-regulation of: (a) oncogenic survival kinases such as PI3K and Akt; (b) cell proliferation regulators that include Erk1/2, D-type Cyclins, and Cyclin Dependent Kinases (CDKs); (c) transcription factors such as NF-kβ, NRF2 and STATs; (d) histone deacetylases HDAC1 and HDAC2; and (e) angiogenic factors VEGF, FGFR1 and MIC-1...
December 1, 2016: Nutrition Journal
https://www.readbyqxmd.com/read/27901003/fibroblast-growth-factor-receptor-1-gene-amplification-in-nonsmall-cell-lung-cancer
#4
REVIEW
Jian-Long Miao, Rui-Juan Liu, Jin-Hua Zhou, Shu-Hua Meng
OBJECTIVE: To review the prevalence and prognostic significance of fibroblast growth factor receptor 1 (FGFR1) amplification and to establish an association between FGFR1 amplification and the clinical characteristics of nonsmall cell lung cancer (NSCLC). DATA SOURCES: We searched PubMed for English-language studies published between January 2010 and May 2016. STUDY SELECTION: We included all relevant articles, with no limitation of study design...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27893433/regulation-of-brachyury-by-fibroblast-growth-factor-receptor-1-in-lung-cancer
#5
Yunping Hu, Xin Feng, Akiva Mintz, W Jeffrey Petty, Wesley Hsu
Recent evidence suggests that T-box transcription factor brachyury plays an important role in lung cancer development and progression. However, the mechanisms underlying brachyury-driven cellular processes remain unclear. Here we found that fibroblast growth factor receptor 1/mitogen-activated protein kinase (FGFR1/MAPK) signaling regulated brachyury in lung cancer. Analysis of FGFR1-4 and brachyury expression in human lung tumor tissue and cell lines found that only expression of FGFR1 was positively correlated with brachyury expression...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27893178/comprehensive-genetic-characterization-of-rosette-forming-glioneuronal-tumors-independent-component-analysis-by-tissue-microdissection
#6
Yohei Kitamura, Takashi Komori, Makoto Shibuya, Kentaro Ohara, Yuko Saito, Saeko Hayashi, Aya Sasaki, Eiji Nakagawa, Ryosuke Tomio, Akiyoshi Kakita, Masashi Nakatsukasa, Kazunari Yoshida, Hikaru Sasaki
A rosette-forming glioneuronal tumor (RGNT) is a rare, mixed neuronal-glial tumor characterized by biphasic architecture of glial and neurocytic components. The number of reports of genetic analyses of RGNTs is few. Additionally, the genetic background of the unique biphasic pathological characteristics of such mixed neuronal-glial tumors remains unclear. To clarify the genetic background of RGNTs, we performed separate comprehensive genetic analyses of glial and neurocytic components of five RGNTs, by tissue microdissection...
November 28, 2016: Brain Pathology
https://www.readbyqxmd.com/read/27885740/asp5878-a-selective-fgfr-inhibitor-to-treat-fgfr3-dependent-urothelial-cancer-with-or-without-chemoresistance
#7
Aya Kikuchi, Tomoyuki Suzuki, Taisuke Nakazawa, Masateru Iizuka, Ayako Nakayama, Tohru Ozawa, Minoru Kameda, Nobuaki Shindoh, Tadashi Terasaka, Masaaki Hirano, Sadao Kuromitsu
FGF/FGFR gene aberrations such as amplification, mutation and fusion are associated with many types of human cancers including urothelial cancer. FGFR kinase inhibitors are expected to be a targeted therapy for urothelial cancer harboring FGFR3 gene alternations. ASP5878, a selective inhibitor of FGFR1, 2, 3 and 4 under clinical investigation, selectively inhibited cell proliferation of urothelial cancer cell lines harboring FGFR3 point mutation or fusion (UM-UC-14, RT-112, RT4 and SW 780) among 23 urothelial cancer cell lines...
November 25, 2016: Cancer Science
https://www.readbyqxmd.com/read/27884859/isolated-gnrh-deficiency-genotypic-and-phenotypic-characteristics-of-the-genetically-heterogeneous-greek-population
#8
Maria I Stamou, Petros Varnavas, Machi Kentrou, Fotini Adamidou, Antonis Voutetakis, Jenny Jing, Lacey Plummer, Vasiliki Koika, Neoklis A Georgopoulos
OBJECTIVE: Isolated GnRH Deficiency (IGD) is a rare heritable disorder characterized by phenotypic and genetic heterogeneity. The genetic complexity of IGD has been surfaced by analyzing clinically complex cases, structural genetic variation as well as endogamous familial cases and isolated populations, revealing an enrichment for particular genes/ pathways that reflects the homogeneous genetic background of such populations. DESIGN AND METHODS: We analyzed a cohort of 81 Greek IGD patients by performing detailed phenotyping, followed by Sanger Sequencing of 14 causative IGD genes...
November 24, 2016: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27879395/a-computationally-identified-compound-antagonizes-excess-fgf-23-signaling-in-renal-tubules-and-a-mouse-model-of-hypophosphatemia
#9
Zhousheng Xiao, Demian Riccardi, Hector A Velazquez, Ai L Chin, Charles R Yates, Jesse D Carrick, Jeremy C Smith, Jerome Baudry, L Darryl Quarles
Fibroblast growth factor-23 (FGF-23) interacts with a binary receptor complex composed of α-Klotho (α-KL) and FGF receptors (FGFRs) to regulate phosphate and vitamin D metabolism in the kidney. Excess FGF-23 production, which causes hypophosphatemia, is genetically inherited or occurs with chronic kidney disease. Among other symptoms, hypophosphatemia causes vitamin D deficiency and the bone-softening disorder rickets. Current therapeutics that target the receptor complex have limited utility clinically. Using a computationally driven, structure-based, ensemble docking and virtual high-throughput screening approach, we identified four novel compounds predicted to selectively inhibit FGF-23-induced activation of the FGFR/α-KL complex...
November 22, 2016: Science Signaling
https://www.readbyqxmd.com/read/27870574/evaluation-of-bgj398-a-fibroblast-growth-factor-receptor-1-3-kinase-inhibitor-in-patients-with-advanced-solid-tumors-harboring-genetic-alterations-in-fibroblast-growth-factor-receptors-results-of-a-global-phase-i-dose-escalation-and-dose-expansion-study
#10
Lucia Nogova, Lecia V Sequist, Jose Manuel Perez Garcia, Fabrice Andre, Jean-Pierre Delord, Manuel Hidalgo, Jan H M Schellens, Philippe A Cassier, D Ross Camidge, Martin Schuler, Ulka Vaishampayan, Howard Burris, G Gary Tian, Mario Campone, Zev A Wainberg, Wan-Teck Lim, Patricia LoRusso, Geoffrey I Shapiro, Katie Parker, Xueying Chen, Somesh Choudhury, Francois Ringeisen, Diana Graus-Porta, Dale Porter, Randi Isaacs, Reinhard Buettner, Jürgen Wolf
Purpose This two-part, first-in-human study was initiated in patients with advanced solid tumors harboring genetic alterations in fibroblast growth factor receptors (FGFRs) to determine the maximum tolerated dose (MTD), the recommended phase II dose (RP2D), and the schedule, safety, pharmacokinetics, pharmacodynamics, and antitumor activity of oral BGJ398, a selective FGFR1-3 tyrosine kinase inhibitor. Patients and Methods Adult patients were treated with escalating dosages of BGJ398 5 to 150 mg once daily or 50 mg twice daily continuously in 28-day cycles...
November 21, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27863477/keratin-19-as-a-key-molecule-in-progression-of-human-hepatocellular-carcinomas-through-invasion-and-angiogenesis
#11
Masato Takano, Keiji Shimada, Tomomi Fujii, Kohei Morita, Maiko Takeda, Yoshiyuki Nakajima, Akitaka Nonomura, Noboru Konishi, Chiho Obayashi
BACKGROUND: Keratin (K) 19-positive hepatocellular carcinoma (HCC) is well known to have a higher malignant potential than K19-negative HCC: However, the molecular mechanisms involved in K19-mediated progression of HCC remain unclear. We attempted to clarify whether K19 directly affects cell survival and invasiveness in association with cellular senescence or epithelial-mesenchymal transition (EMT) in K19-positive HCC. METHODS: K19 expression was analysed in 136 HCC surgical specimens...
November 18, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27862886/molecular-characterization-reveals-nf1-deletions-and-fgfr1-activating-mutations-in-a-pediatric-spinal-oligodendroglioma
#12
Amy K Bruzek, Andrew H Zureick, Paul E McKeever, Hugh J L Garton, Patricia L Robertson, Rajen Mody, Carl J Koschmann
Pediatric spinal oligodendrogliomas are rare and aggressive tumors. They do not share the same molecular features of adult oligodendroglioma, and no previous reports have examined the molecular features of pediatric spinal oligodendroglioma. We present the case of a child with a recurrent spinal anaplastic oligodendroglioma. We performed whole exome (paired tumor and germline DNA) and transcriptome (tumor RNA) sequencing, which revealed somatic mutations in NF1 and FGFR1. These data allowed us to explore potential personalized therapies for this patient and expose molecular drivers that may be involved in similar cases...
November 10, 2016: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/27862334/tgf%C3%AE-signaling-confers-sorafenib-resistance-via-induction-of-multiple-rtks-in-hepatocellular-carcinoma-cells
#13
Nathan Ungerleider, Chang Han, Jinqiang Zhang, Lu Yao, Tong Wu
Transforming growth factor β (TGFβ) is a multifunctional cytokine which is importantly implicated in hepatocarcinogenesis. The current study provides novel evidence that TGFβ upregulates the expression of multiple receptor tyrosine kinases (RTKs), including IGF1R, EGFR, PDGFβR, and FGFR1 in human hepatocellular carcinoma (HCC) cells. This, in turn, sensitized HCC cells to individual cognate RTK ligands, leading to cell survival. Our data showed that the TGFβ-mediated increase in growth factor sensitivity led to evasion of apoptosis induced by the mutikinase inhibitor, sorafenib...
November 15, 2016: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/27845189/genome-analyses-identify-the-genetic-modification-of-lung-cancer-subtypes
#14
REVIEW
Yong Zhang, Diane C Wang, Lin Shi, Bijun Zhu, Zhihui Min, Jianjun Jin
Lung cancer is a highly intricate and heterogeneous disease with genomic diversity in each subtype. Global analyses of gene expression and sequencing provided us new understanding of the genetic variation between small cell lung carcinoma (SCLC) and non-small cell lung carcinoma (NSCLC), including adenocarcinoma (ADC), and squamous cell carcinoma (SCC). The genetic variations of lung cancer subtypes in genomic studies were integrated and further analyzed using bioinformatics methods. The lung cancer subtypes share some genetic variations such as the dysfunction of tumor suppressor gene TP53, and also harbor specific variations of their own such as MET in ADC, FGFR1 and FGFR3 in SCC and MYC in SCLC...
November 11, 2016: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/27837149/chronic-hyperphosphatemia-and-vascular-calcification-are-reduced-by-stable-delivery-of-soluble-klotho
#15
Julia M Hum, Linda M O'Bryan, Arun K Tatiparthi, Taryn A Cass, Erica L Clinkenbeard, Martin S Cramer, Manoj Bhaskaran, Robert L Johnson, Jonathan M Wilson, Rosamund C Smith, Kenneth E White
αKlotho (αKL) regulates mineral metabolism, and diseases associated with αKL deficiency are characterized by hyperphosphatemia and vascular calcification (VC). αKL is expressed as a membrane-bound protein (mKL) and recognized as the coreceptor for fibroblast growth factor-23 (FGF23) and a circulating soluble form (cKL) created by endoproteolytic cleavage of mKL. The functions of cKL with regard to phosphate metabolism are unclear. We tested the ability of cKL to regulate pathways and phenotypes associated with hyperphosphatemia in a mouse model of CKD-mineral bone disorder and αKL-null mice...
November 11, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27829519/synthesis-biological-evaluation-qsar-and-molecular-dynamics-simulation-studies-of-potential-fibroblast-growth-factor-receptor-1-inhibitors-for-the-treatment-of-gastric-cancer
#16
Shilong Ying, Xiaojing Du, Weitao Fu, Di Yun, Liping Chen, Yuepiao Cai, Qing Xu, Jianzhang Wu, Wulan Li, Guang Liang
Accumulating evidence suggests that fibroblast growth factor receptor 1 (FGFR1) is an attractive target in gastric cancer therapy. Based on our previous discovery of two non-ATP competitive FGFR1 inhibitors, A114 and A117, we designed and screened a series of compounds with the framework of bisaryl-1,4-dien-3-one. Among them, D12 and D15 exhibited the most potent FGFR1 inhibitory activity, which was ATP-independent. Furthermore, a quantitative structure-activity relationship analysis of 41 analogs demonstrated that the specific structural substitutions alter their bioactivities...
November 1, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27825137/fgfr-signaling-maintains-a-drug-persistent-cell-population-following-epithelial-mesenchymal-transition
#17
Wells S Brown, Saeed Salehin Akhand, Michael K Wendt
An emerging characteristic of drug resistance in cancer is the induction of epithelial-mesenchymal transition (EMT). However, the mechanisms of EMT-mediated drug resistance remain poorly defined. Therefore, we conducted long-term treatments of human epidermal growth factor receptor-2 (Her2)-transformed breast cancer cells with either the EGFR/Her2 kinase inhibitor, Lapatinib or TGF-β, a known physiological inducer of EMT. Both of these treatment regimes resulted in robust EMT phenotypes, but upon withdrawal a subpopulation of TGF-β induced cells readily underwent mesenchymal-epithelial transition, where as Lapatinib-induced cells failed to reestablish an epithelial population...
November 4, 2016: Oncotarget
https://www.readbyqxmd.com/read/27821131/frequency-of-egfr-t790m-mutation-and-multimutational-profiles-of-rebiopsy-samples-from-non-small-cell-lung-cancer-developing-acquired-resistance-to-egfr-tyrosine-kinase-inhibitors-in-japanese-patients
#18
Ryo Ko, Hirotsugu Kenmotsu, Masakuni Serizawa, Yasuhiro Koh, Kazushige Wakuda, Akira Ono, Tetsuhiko Taira, Tateaki Naito, Haruyasu Murakami, Mitsuhiro Isaka, Masahiro Endo, Takashi Nakajima, Yasuhisa Ohde, Nobuyuki Yamamoto, Kazuhisa Takahashi, Toshiaki Takahashi
BACKGROUND: The majority of non-small cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR) mutation eventually develop resistance to EGFR tyrosine kinase inhibitors (TKIs). Minimal information exists regarding genetic alterations in rebiopsy samples from Asian NSCLC patients who develop acquired resistance to EGFR-TKIs. METHODS: We retrospectively reviewed the medical records of patients with NSCLC harboring EGFR mutations who had undergone rebiopsies after developing acquired resistance to EGFR-TKIs...
November 8, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27816680/differential-pathway-network-analysis-used-to-identify-key-pathways-associated-with-pediatric-pneumonia
#19
Jun-Bo Yang, Rong Luo, Yan Yan, Yan Chen
We aimed to identify key pathways to further explore the molecular mechanism underlying pediatric pneumonia using differential pathway network which integrated protein-protein interactions (PPI) data and pathway information. PPI data and pathway information were obtained from STRING and Reactome database, respectively. Next, pathway interactions were identified on the basis of constructing gene-gene interactions randomly, and a weight value computed using Spearman correlation coefficient was assigned to each pathway-pathway interaction, thereby to further detect differential pathway interactions...
November 3, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27815219/existence-of-muscarinic-acetylcholine-receptor-machr-and-fibroblast-growth-factor-receptor-fgfr-heteroreceptor-complexes-and-their-enhancement-of-neurite-outgrowth-in-neural-hippocampal-cultures
#20
V Di Liberto, D O Borroto-Escuela, M Frinchi, V Verdi, K Fuxe, N Belluardo, G Mudò
BACKGROUND: Recently, it was demonstrated that G-protein-coupled receptors (GPCRs) can transactivate tyrosine kinase receptors in absence of their ligands. In this work, driven by the observation that mAChRs and fibroblast growth factor receptors (FGFRs) share signalling pathways and regulation of brain functions, it was decided to explore whether mAChRs activation may transactivate FGFRs and, if so, to characterize the related trophic effects in cultured hippocampal neurons. METHODS: Oxotremorine-M transactivation of FGFRs and related trophic effects were tested in primary hippocampal neurons...
November 1, 2016: Biochimica et Biophysica Acta
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