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https://www.readbyqxmd.com/read/28821955/targeted-next-generation-sequencing-for-analyzing-the-genetic-alterations-in-atypical-adenomatous-hyperplasia-and-adenocarcinoma-in-situ
#1
Xuan Xu, Na Li, Ruiying Zhao, Lei Zhu, Jinchen Shao, Jie Zhang
PURPOSE: Atypical adenomatous hyperplasia (AAH) and adenocarcinoma in situ (AIS) have been defined as preinvasive pulmonary adenocarcinoma lesions according to the 2015 World Health Organization lung adenocarcinoma classification. We aimed to search for the most common gene mutations in patients with AAH and AIS and investigate the distinctions between the two groups at the molecular level. METHODS: We performed targeted next-generation sequencing on 18 cases with AAH and 28 cases with AIS to screen for mutations with the Ion Torrent Oncomine Solid Tumor DNA panel...
August 18, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28821194/primary-benign-and-malignant-thyroid-neoplasms-with-signet-ring-cells-cytologic-histologic-and-molecular-features
#2
Nada A Farhat, Ayse M Onenerk, Jeffrey F Krane, Dora Dias-Santagata, Peter M Sadow, William C Faquin
Objectives: Signet ring cells (SRCs) can be seen in a variety of thyroid tumors and can pose a diagnostic pitfall on cytology. This study describes the cytologic, histomorphologic, and molecular aspects of a cohort of primary thyroid tumors with SRCs. Methods: A search was performed of the Massachusetts General Hospital and Brigham and Women's Hospital (Boston, MA) pathology archives for the keywords thyroid, signet, and signet ring features between 2000 and 2014...
September 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28802681/activated-fgfr3-promotes-bone-formation-via-accelerating-endochondral-ossification-in-mouse-model-of-distraction-osteogenesis
#3
Yusuke Osawa, Masaki Matsushita, Sachi Hasegawa, Ryusaku Esaki, Masahito Fujio, Bisei Ohgawara, Naoki Ishiguro, Kinji Ohno, Hiroshi Kitoh
Achondroplasia (ACH) is one of the most common short-limbed skeletal dysplasias caused by gain-of-function mutations in the fibroblast growth factor receptors 3 (FGFR3) gene. Distraction osteogenesis (DO) is a treatment option for short stature in ACH in some countries. Although the patients with ACH usually show faster healing in DO, details of the newly formed bone have not been examined. We have developed a mouse model of DO and analyzed new bone regenerates of the transgenic mice with ACH (Fgfr3(ach) mice) histologically and morphologically...
August 9, 2017: Bone
https://www.readbyqxmd.com/read/28794627/in-situ-imaging-of-quantum-dot-azd4547-conjugates-for-tracking-the-dynamic-behavior-of-fibroblast-growth-factor-receptor-3
#4
Gyoyeon Hwang, Hyeonhye Kim, Hojong Yoon, Chiman Song, Dong-Kwon Lim, Taebo Sim, Jiyeon Lee
Fibroblast growth factor receptors (FGFRs) play an important role in determining cell proliferation, differentiation, migration, and survival. Although a variety of small-molecule FGFR inhibitors have been developed for cancer therapeutics, the interaction between FGFRs and FGFR inhibitors has not been well characterized. The FGFR-inhibitor interaction can be characterized using a new imaging probe that has strong, stable signal properties for in situ cellular imaging of the interaction without quenching. We developed a kinase-inhibitor-modified quantum dot (QD) probe to investigate the interaction between FGFR and potential inhibitors...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28777845/-rapid-detection-of-hot-spot-mutations-of-fgfr3-gene-with-pcr-high-resolution-melting-assay
#5
Shan Li, Han Wang, Hua Su, Jinsong Gao, Xiuli Zhao
OBJECTIVE: To identify the causative mutations in five individuals affected with dyschondroplasia and develop an efficient procedure for detecting hot spot mutations of the FGFR3 gene. METHODS: Genomic DNA was extracted from peripheral blood samples with a standard phenol/chloroform method. PCR-Sanger sequencing was used to analyze the causative mutations in the five probands. PCR-high resolution melting (HRM) was developed to detect the identified mutations. RESULTS: A c...
August 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28776571/expanded-molecular-profiling-of-myxofibrosarcoma-reveals-potentially-actionable-targets
#6
Ellen Heitzer, Sandra Sunitsch, Magdalena M Gilg, Birgit Lohberger, Beate Rinner, Karl Kashofer, Nicole Stündl, Peter Ulz, Joanna Szkandera, Andreas Leithner, Bernadette Liegl-Atzwanger
Myxofibrosarcomas are morphologically heterogeneous soft tissue sarcomas lacking a specific immunohistochemical expression profile and recurrent genetic changes. The study was designed to gain further insights into the molecular landscape of myxofibrosarcomas by targeted re-sequencing of known cancer driver hotspot mutations and the analysis of genomewide somatic copy number alterations. A well-defined group of myxofibrosarcomas, including myxofibrosarcomas G1 (n=6), myxofibrosarcomas G3 (n=7), myxofibrosarcomas with morphologically heterogeneous and independently selectable G1 and G3 areas within a tumor (n=8), and myxofibrosarcomas G3 with subsequent tumor recurrence (n=1) or metastatic disease (n=3) were evaluated...
August 4, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28775129/comprehensive-molecular-profiling-of-olfactory-neuroblastoma-identifies-potentially-targetable-fgfr3-amplifications
#7
Lorena Lazo de la Vega, Jonathan B McHugh, Andi K Cani, Komal Kunder, Frances M Walocko, Chia-Jen Liu, Daniel H Hovelson, Dan R Robinson, Arul M Chinnaiyan, Scott A Tomlins, Paul W Harms
Olfactory neuroblastomas (ONBs), also known as esthesioneuroblastomas, are malignant round-cell tumors that represent up to 5% of sinonasal malignancies. Despite their aggressive course, molecular studies of ONBs have been limited, and targeted therapies are lacking. To identify potential oncogenic drivers and targetable pathways in ONBs, we characterized 20 ONBs, including archived ONBs profiled by targeted, multiplexed PCR (mxPCR) based DNA next generation sequencing (NGS) of the coding sequence of over 400 cancer-relevant genes (n=16), mxPCR based RNA NGS of 108 target genes (n=15), and two ONBs profiled by comprehensive hybrid-capture based clinical grade NGS of >1,500 genes...
August 3, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28768959/next-generation-sequencing-based-mutation-screening-of-86-patients-with-idiopathic-short-stature
#8
Atsushi Hattori, Yuko Katoh-Fukui, Akie Nakamura, Keiko Matsubara, Tsutomu Kamimaki, Hiroyuki Tanaka, Sumito Dateki, Masanori Adachi, Koji Muroya, Shinobu Yoshida, Shinobu Ida, Marie Mitani, Keisuke Nagasaki, Tsutomu Ogata, Erina Suzuki, Kenichiro Hata, Kazuhiko Nakabayashi, Yoichi Matsubara, Satoshi Narumi, Toshiaki Tanaka, Maki Fukami
Although mutations in ACAN, FGFR3, NPR2, and SHOX typically lead to skeletal dysplasia, and mutations in GHRHR, GH1, GHR, STAT5B, IGF1, IGFALS, and IGF1R usually underlie hormonal defects of the growth hormone (GH)-insulin-like growth factor 1 (IGF1) axis, such mutations have also been identified in patients with idiopathic short stature (ISS). Of these, SHOX abnormalities are known to account for a certain percentage of ISS cases, whereas the frequency of mutations in the other 10 genes in ISS cohorts remains unknown...
August 3, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28768864/kinase-activity-of-fibroblast-growth-factor-receptor-3-regulates-activity-of-the-papillomavirus-e2-protein
#9
Fang Xie, Marsha DeSmet, Sriramana Kanginakudru, Leny Jose, Sara P Culleton, Timra Gilson, Chengxin Li, Elliot J Androphy
The papillomavirus (PV) E2 protein is a DNA binding, protein interaction platform that recruits viral and host factors necessary for transcription and replication. We recently discovered phosphorylation of a tyrosine (Y102) in bovine PV E2. To identify the responsible factor, we tested several candidate tyrosine kinases that are highly expressed in keratinocytes for binding to BPV-1 E2. Fibroblast growth factor receptor 3 (FGFR3) co-immunoprecipitated with the BPV-1 E2 protein, as did HPV-31 E2, which also co-localized with FGFR3 within the nucleus...
August 2, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28763161/monoallelic-fgfr3-and-biallelic-alpl-mutations-in-a-thai-girl-with-hypochondroplasia-and-hypophosphatasia
#10
Thantrira Porntaveetus, Chalurmpon Srichomthong, Kanya Suphapeetiporn, Vorasuk Shotelersuk
Skeletal dysplasias are a complex group of more than 350 disorders with phenotypic and genotypic heterogeneity affecting bone and cartilage growth. We studied a 2-year-old girl and her 21-year-old mother with disproportionate short stature. In addition to typical features of hypochondroplasia found in both patients, the child had deformities of the extremity bones, metaphyseal flares, and bilateral transverse (Bowdler) fibular spurs with overlying skin dimples detected at birth. Intravenous pamidronate was started in the child since the age of 17 days, and then every two months...
August 1, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28760909/-span-style-font-weight-400-circulating-tumor-dna-reveals-clinically-actionable-somatic-genome-of-metastatic-bladder-cancer-span
#11
Gillian R Vandekerkhove, Tilman Todenhöfer, Matti Annala, Werner J Struss, Amanda Wong, Kevin Beja, Elie Ritch, Sonal Brahmbhatt, Stas Volik, Jörg Hennenlotter, Matti Nykter, Kim N Chi, Scott North, Arnulf Stenzl, Colin C Collins, Bernhard J Eigl, Peter C Black, Alexander W Wyatt
Targeted agents and immunotherapies promise to transform the treatment of metastatic bladder cancer (BCa), but therapy selection will depend on practical tumor molecular stratification. Circulating tumor DNA (ctDNA) is established in several solid malignancies as a minimally-invasive tool to profile the tumor genome in real-time, but is critically under-explored in BCa. <p>Experimental Design: We applied a combination of whole exome sequencing and targeted sequencing across 50 BCa driver genes to plasma cell-free DNA (cfDNA) from 51 patients with aggressive BCa, including 37 with metastatic disease...
July 31, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28749946/genome-wide-association-analysis-identifies-genetic-correlates-of-immune-infiltrates-in-solid-tumors
#12
Nathan O Siemers, James L Holloway, Han Chang, Scott D Chasalow, Petra B Ross-MacDonald, Charles F Voliva, Joseph D Szustakowski
Therapeutic options for the treatment of an increasing variety of cancers have been expanded by the introduction of a new class of drugs, commonly referred to as checkpoint blocking agents, that target the host immune system to positively modulate anti-tumor immune response. Although efficacy of these agents has been linked to a pre-existing level of tumor immune infiltrate, it remains unclear why some patients exhibit deep and durable responses to these agents while others do not benefit. To examine the influence of tumor genetics on tumor immune state, we interrogated the relationship between somatic mutation and copy number alteration with infiltration levels of 7 immune cell types across 40 tumor cohorts in The Cancer Genome Atlas...
2017: PloS One
https://www.readbyqxmd.com/read/28730625/fgf9-mutation-causes-craniosynostosis-along-with-multiple-synostoses
#13
Maria Rodriguez-Zabala, Miriam Aza-Carmona, Carlos I Rivera-Pedroza, Alberta Belinchón, Isabel Guerrero-Zapata, Jimena Barraza-García, Elena Vallespin, Min Lu, Angela Del Pozo, Marc J Glucksman, Fernando Santos-Simarro, Karen E Heath
Craniosynostosis is commonly caused by mutations in fibroblast growth factor receptors (FGFRs), highlighting the essential role of FGF-mediated signaling in skeletal development. We set out to identify the molecular defect in a family referred for craniosynostosis and in whom no mutation was previously detected. Using next-generation sequencing, we identified a novel missense mutation in FGF9. Modeling based upon the crystal structure and functional studies confirmed its pathogenicity showing that it impaired homodimerization and FGFR3 binding...
July 21, 2017: Human Mutation
https://www.readbyqxmd.com/read/28729349/fgf9-prevents-pleural-fibrosis-induced-by-intra-pleural-adenovirus-injection-in-mice
#14
Aurélien Justet, Audrey Joannes, Valérie Besnard, Joëlle Marchal-Sommé, Madeleine Jaillet, Phillippe Bonniaud, Jean-Michel Sallenave, Brigitte Solhonne, Yves Castier, Pierre Mordant, Hervé Mal, Aurélie Cazes, Raphael Borie, Arnaud A Mailleux, Bruno Crestani
Fibroblast Growth Factor 9 (FGF9) is necessary for fetal lung development and is expressed by epithelium and mesothelium. We evaluated the role of FGF9 overexpression on adenoviral-induced pleural injury in vivo and determined the biological effects of FGF9 on mesothelial cells in vitro. We assessed the expression of FGF9 and FGF receptors by mesothelial cells in both Human and mouse lungs. Intrapleural injection of an adenovirus expressing human FGF9 (AdFGF9) or a control adenovirus (Adcont) was performed...
July 20, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28715796/application-of-long-noncoding-rnas-in-osteosarcoma-biomarkers-and-therapeutic-targets
#15
Zhihong Li, Pengcheng Dou, Tang Liu, Shasha He
Osteosarcoma is the most common primary bone malignancy in children and adolescents. Although improvements in therapeutic strategies were achieved, the outcome remains poor for most patients with metastatic or recurrent osteosarcoma. Therefore, it is imperative to identify novel and effective prognostic biomarker and therapeutic targets for the disease. Long noncoding RNAs (lncRNAs) are a novel class of RNA molecules defined as transcripts >200 nucleotides that lack protein coding potential. Many lncRNAs are deregulated in cancer and are important regulators for malignancies...
July 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28693116/long-term-follow-up-of-a-child-with-klinefelter-syndrome-and-achondroplasia-from-infancy-to-16-years
#16
Jessica D Arditi, Loretta Thomaidis, Helen Frysira, Artemis Doulgeraki, George P Chrousos, Christina Kanaka-Gantenbein
BACKGROUND: Achondroplasia (ACH), an autosomal dominant skeletal dysplasia, occurs in approximately 1:20,000 births. On the other hand, 47,XXY aneuploidy (Klinefelter syndrome [KS]) is the most common sex chromosome disorder, with a prevalence of approximately 1:600 males. To the best of our knowledge, only five cases of patients presenting both ACH and KS have been reported to date in the international literature. However, none of these cases has been longitudinally followed during the entire childhood...
June 23, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28679403/identification-and-in-silico-characterization-of-p-g380r-substitution-in-fgfr3-associated-with-achondroplasia-in-a-non-consanguineous-pakistani-family
#17
Muhammad Ajmal, Asif Mir, Muhammad Shoaib, Salman Akbar Malik, Muhammad Nasir
BACKGROUND: The dimerization efficiency of FGFR3 transmembrane domain plays a critical role in the formation of a normal skeleton through the negative regulation of bone development. Recently, gain-of-function mutations in the transmembrane domain of FGFR3 has been described associated with an aberrant negative regulation, leading to the development of achondroplasia-group disorders, including achondroplasia (ACH), hypochondroplasia (HCH) and thanatophoric dysplasia (TD). Here, we describe a non-consanguineous Pakistani family with achondroplasia to explain hereditary basis of the disease...
July 5, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28675510/the-co-regulatory-networks-of-tumor-suppressor-genes-oncogenes-and-mirnas-in-colorectal-cancer
#18
Martha L Slattery, Jennifer S Herrick, Lila E Mullany, Wade S Samowitz, John R Sevens, Lori Sakoda, Roger K Wolff
Tumor suppressor genes (TSGs) and oncogenes (OG) are involved in carcinogenesis. MiRNAs also contribute to cellular pathways leading to cancer. We use data from 217 colorectal cancer (CRC) cases to evaluate differences in TSGs and OGs expression between paired CRC and normal mucosa and evaluate how TSGs and OGs are associated with miRNAs. Gene expression data from RNA-Seq and miRNA expression data from Agilent Human miRNA Microarray V19.0 were used. We focus on genes most strongly associated with CRC (fold change (FC) of ≥1...
July 4, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28672740/long-term-follow-up-of-a-child-with-klinefelter-syndrome-and-achondroplasia-from-infancy-to-16-years
#19
Jessica D Arditi, Loretta Thomaidis, Helen Frysira, Artemis Doulgeraki, George P Chrousos, Christina Kanaka-Gantenbein
BACKGROUND: Achondroplasia (ACH), an autosomal dominant skeletal dysplasia, occurs in approximately 1:20,000 births. On the other hand, 47,XXY aneuploidy (Klinefelter syndrome [KS]) is the most common sex chromosome disorder, with a prevalence of approximately 1:600 males. To the best of our knowledge, only five cases of patients presenting both ACH and KS have been reported to date in the international literature. However, none of these cases has been longitudinally followed during the entire childhood...
July 26, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28665395/alternative-splicing-promotes-tumour-aggressiveness-and-drug-resistance-in-african-american-prostate-cancer
#20
Bi-Dar Wang, Kristin Ceniccola, SuJin Hwang, Ramez Andrawis, Anelia Horvath, Jennifer A Freedman, Jacqueline Olender, Stefan Knapp, Travers Ching, Lana Garmire, Vyomesh Patel, Mariano A Garcia-Blanco, Steven R Patierno, Norman H Lee
Clinical challenges exist in reducing prostate cancer (PCa) disparities. The RNA splicing landscape of PCa across racial populations has not been fully explored as a potential molecular mechanism contributing to race-related tumour aggressiveness. Here, we identify novel genome-wide, race-specific RNA splicing events as critical drivers of PCa aggressiveness and therapeutic resistance in African American (AA) men. AA-enriched splice variants of PIK3CD, FGFR3, TSC2 and RASGRP2 contribute to greater oncogenic potential compared with corresponding European American (EA)-expressing variants...
June 30, 2017: Nature Communications
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