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https://www.readbyqxmd.com/read/29776413/the-cxcr4-antagonist-plerixafor-amd3100-promotes-proliferation-of-ewing-sarcoma-cell-lines-in-vitro-and-activates-receptor-tyrosine-kinase-signaling
#1
Philipp Berning, Christiane Schaefer, Dagmar Clemens, Eberhard Korsching, Uta Dirksen, Jenny Potratz
BACKGROUND: The CXCR4 receptor antagonist plerixafor (AMD3100) is raising interest as an anti-cancer agent that disrupts the CXCL12-CXCR4 chemokine - receptor interaction between neoplastic cells and their microenvironment in tumor progression and metastasis. Here, we investigated plerixafor for anti-cancer activity in Ewing sarcoma, a rare and aggressive cancer of bone and soft tissues. METHODS: We used a variety of methods such as cell viability and migration assays, flow cytometry, phospho-tyrosine arrays and western blotting to determine plerixafor effects on five characterized Ewing sarcoma cell lines and a low-passage culture in vitro...
May 18, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/29773547/a-novel-pdgfrb-mutation-in-tki-resistant-ph-like-all
#2
(no author information available yet)
No abstract text is available yet for this article.
May 17, 2018: Blood
https://www.readbyqxmd.com/read/29740513/candidate-genes-in-gastric-cancer-identified-by-constructing-a-weighted-gene-co-expression-network
#3
Jian Chen, Xiuwen Wang, Bing Hu, Yifu He, Xiaojun Qian, Wei Wang
Background: Gastric cancer (GC) is one of the most common cancers with high mortality globally. However, the molecular mechanisms of GC are unclear, and the prognosis of GC is poor. Therefore, it is important to explore the underlying mechanisms and screen for novel prognostic markers and treatment targets. Methods: The genetic and clinical data of GC patients in The Cancer Genome Atlas (TCGA) was analyzed by weighted gene co-expression network analysis (WGCNA)...
2018: PeerJ
https://www.readbyqxmd.com/read/29724654/the-novel-pathogenesis-of-retinopathy-mediated-by-multiple-rtk-signals-is-uncovered-in-newly-developed-mouse-model
#4
Hideyuki Kitahara, Sayaka Kajikawa, Yoko Ishii, Seiji Yamamoto, Takeru Hamashima, Erika Azuma, Hikari Sato, Takako Matsushima, Masabumi Shibuya, Yutaka Shimada, Masakiyo Sasahara
Pericyte desorption from retinal blood vessels and subsequent vascular abnormalities are the pathogenesis of diabetic retinopathy (DR). Although the involvement of abnormal signals including platelet-derived growth factor receptor-β (PDGFRβ) and vascular endothelial growth factor-A (VEGF-A) have been hypothesized in DR, the mechanisms that underlie this processes are largely unknown. Here, novel retinopathy mouse model (N-PRβ-KO) was developed with conditional Pdgfrb gene deletion by Nestin promoter-driven Cre recombinase (Nestin-Cre) consistently reproduced through early non-proliferative to late proliferative DR pathologies...
April 25, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29714651/hypereosinophilic-syndrome-preceding-a-diagnosis-of-b-cell-lymphoma
#5
Arash Samarghandi, Shradha Ahuja, Vishal Jindal, Sorab Gupta, Ilmana Fulger
INTRODUCTION: Hypereosinophilic syndrome (HES) is a rare condition characterized by eosinophilia and organ destruction secondary to eosinophilic infiltration. The coexistence of primary B-cell lymphoma and hypereosinophilic syndrome is extremely rare. We present a case of HES that preceded the diagnosis of diffuse large B-cell lymphoma. CASE REPORT: A 70-year-old man presented with a 3-month history of diarrhea and 30-pound weight loss. Complete blood count showed a white blood cell count of 7452/µL with eosinophils of 42% (absolute eosinophil count 3130)...
March 1, 2018: Tumori
https://www.readbyqxmd.com/read/29685513/expression-of-platelet-derived-growth-factor-b-is-upregulated-in-patients-with-thoracic-aortic-dissection
#6
Weixin Meng, Shangdian Liu, Dandan Li, Zonghong Liu, Hui Yang, Bo Sun, Hongyu Liu
OBJECTIVE: Thoracic aortic dissection (TAD) is a serious condition requiring urgent treatment to avoid catastrophic consequences. The inflammatory response is involved in the occurrence and development of TAD, possibly potentiated by platelet-derived growth factors (PDGFs). This study aimed to determine whether expression of PDGF-B (a subunit of PDGF-BB) was increased in TAD patients and to explore the factors responsible for its upregulation and subsequent effects on TAD. METHODS: Full-thickness ascending aorta wall specimens from TAD patients (n = 15) and control patients (n = 10) were examined for expression of PDGF-B and its receptor (PDGFRB) and in terms of morphology, inflammation, and fibrosis...
April 20, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29618717/the-profiles-and-networks-of-mirna-lncrna-mrna-and-circrna-in-benzo-a-pyrene-transformed-bronchial-epithelial-cells
#7
Xinhang Jiang, Xiaoying Wu, Feiyu Chen, Wei He, Xintong Chen, Linhua Liu, Huanwen Tang
Our aim was to demonstrate the significance of miRNA, lncRNA, and circRNA in the transformation of human bronchial epithelial cells induced by benzo(a)pyrene (BaP), and to investigate their regulatory networks. Hierarchical clustering, gene ontology (GO) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis and network regulation analysis were used to analyze the high-throughput sequencing results of human bronchial epithelial cell line BEAS-2B and BaP-transformed BEAS-2B cells (BEAS-2B-T). 76,191,786 and 3,431differentially-expressed miRNA, lncRNA, mRNA and circRNA were detected, respectively; 43 miRNA, 48 lncRNA, 438 mRNA and 2,079 circRNA were up-regulated; 33 miRNA, 143 lncRNA, 348 mRNA and 1,352 circRNA were down-regulated...
2018: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29608334/genome-wide-dna-methylation-analysis-during-palatal-fusion-reveals-the-potential-mechanism-of-enhancer-methylation-regulating-epithelial-mesenchyme-transformation
#8
Xuan Shu, Shenyou Shu, Hongqiu Cheng, Shijie Tang, Lujun Yang, Haihong Li, Mingjun Zhang, Zhensen Zhu, Dan Liu, Ke Li, Zejun Dong, Liuhanghang Cheng, Jialong Ding
Epithelial mesenchyme transformation (EMT) of the medial edge epithelium (MEE) is the crucial process during palatal fusion. This work is aimed to elucidate the enhancer regulatory mechanism by genome-wide DNA methylation analysis of EMT during palatal fusion. Over 800 million clean reads, 325 million enzyme reads, and 234 million mapping reads were generated. The mapping rate was 68.85-74.32%, which included differentially methylated 17299 CCGG sites and 2363 CCWGG sites (p < 0.05, log2 FC >1). Methylated sites in intron and intergenic regions were more compared to other regions of all DNA elements...
April 2, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/29587671/coexisting-of-bone-marrow-fibrosis-dysplasia-and-an-x-chromosomal-abnormality-in-chronic-neutrophilic-leukemia-with-csf3r-mutation-a-case-report-and-literature-review
#9
Xue Bin Wu, Wei Wei Wu, Yue Zhou, Xuan Wang, Jia Li, Yang Yu
BACKGROUND: Chronic neutrophilic leukemia (CNL) is a rare myeloproliferative neoplasm (MPN) with less than 40 cases of patients being reported or clinically suspected meeting with 2008 World Health Organization ("WHO") diagnostic criteria. The current diagnosis of CNL remains to exclude other diseases. Recently, a new biomarker of CSF3R mutations that is almost invariably present in CNL has been identified. There is no effective treatment for CNL, therefore prognosis of the disease is poor, but it may be attributed to the presence of both SETBP1 and CSF3R gene mutations...
March 27, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29567772/molecular-genetic-characterization-of-myeloid-lymphoid-neoplasms-associated-with-eosinophilia-and-rearrangement-of-pdgfra-pdgfrb-fgfr1-or-pcm1-jak2
#10
Constance Baer, Verena Muehlbacher, Wolfgang Kern, Claudia Haferlach, Torsten Haferlach
No abstract text is available yet for this article.
March 22, 2018: Haematologica
https://www.readbyqxmd.com/read/29434033/-pdgfrb-mutation-and-tyrosine-kinase-inhibitor-resistance-in-ph-like-acute-lymphoblastic-leukemia
#11
Yingchi Zhang, Yufeng Gao, Hui Zhang, Jingliao Zhang, Fuhong He, Aleš Hnízda, Maoxiang Qian, Xiaoming Liu, Yoshihiro Gocho, Ching-Hon Pui, Tao Cheng, Qianfei Wang, Jun J Yang, Xiaofan Zhu, Xin Liu
Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) comprises of approximately 10-15% of childhood ALL cases, many of whom respond exquisitely to tyrosine kinase inhibitors (TKIs), e.g., imatinib in PDGFRB -rearranged ALL. However, some cases developed drug resistance to TKIs with mechanisms poorly understood. In this study, we identified a novel PDGFRB fusion gene, namely AGGF1-PDGFRB , and functionally characterized its oncogenic potential in vitro. Further genomic profiling of longitudinally collected samples during treatment revealed the emergence of a mutation PDGFRBC843G , which directly conferred resistance to all generations of ABL TKIs, including imatinib, dasatinib, nilotinib, and ponatinib...
February 6, 2018: Blood
https://www.readbyqxmd.com/read/29415937/-portal-vein-thrombosis-associated-with-idiopathic-hypereosinophilic-syndrome
#12
Satoshi Kaito, Sakiko Harada, Masao Tsukada, Akira Kojima, Kanichi Iwama, Kazunari Yamada, Kouichi Kajiwara, Kentaro Morikawa, Keiki Shimizu, Yasuji Kozai, Hideki Koudo
A 35-year-old man who previously underwent splenectomy for hereditary spherocytosis at age 29 visited our hospital complaining of fatigue that had started 7 days ago and right upper abdominal pain. Laboratory data showed increased white blood cell and eosinophil count accompanied by severe transaminitis and clotting abnormalities. Computed tomography scan showed multiple embolisms in the portal vein, superior mesenteric vein, right pulmonary artery, and inferior vena cava. Severe liver damage presumably caused by portal vein thrombosis was also observed...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29410615/leptin-receptor-expression-in-mouse-intracranial-perivascular-cells
#13
Xuefeng Yuan, Alexandre Caron, Hua Wu, Laurent Gautron
Past studies have suggested that non-neuronal brain cells express the leptin receptor. However, the identity and distribution of these leptin receptor-expressing non-neuronal brain cells remain debated. This study assessed the distribution of the long form of the leptin receptor (LepRb) in non-neuronal brain cells using a reporter mouse model in which LepRb-expressing cells are permanently marked by tdTomato fluorescent protein (LepRb-CretdTomato ). Double immunohistochemistry revealed that, in agreement with the literature, the vast majority of tdTomato-tagged cells across the mouse brain were neurons (i...
2018: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/29408302/the-role-of-small-molecule-platelet-derived-growth-factor-receptor-pdgfr-inhibitors-in-the-treatment-of-neoplastic-disorders
#14
REVIEW
Robert Roskoski
Platelet-derived growth factor (PDGF) was discovered as a serum-derived component necessary for the growth of smooth muscle cells, fibroblasts, and glial cells. The PDGF family is a product of four gene products and consists of five dimeric isoforms: PDGF-AA, PDGF-BB, PDGF-CC, PDGF-DD, and the PDGF-AB heterodimer. This growth factor family plays an essential role in embryonic development and in wound healing in the adult. These growth factors mediate their effects by binding to and activating their receptor protein-tyrosine kinases, which are encoded by two genes: PDGFRA and PDGFRB...
March 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29384404/a-novel-fusion-of-pdgfrb-to-tsc1-an-intrinsic-suppressor-of-mtor-signaling-pathway-in-a-chronic-eosinophilic-leukemia-patient-with-t-5-9-q32-q34
#15
Yue Zhang, Shiqiang Qu, Qianfei Wang, Jianyong Li, Zefeng Xu, Tiejun Qin, Gang Huang, Zhijian Xiao
No abstract text is available yet for this article.
January 31, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29375828/co-occurrence-of-a-novel-pdgfrb-variant-and-likely-pathogenic-variant-in-casr-in-an-individual-with-extensive-intracranial-calcifications-and-hypocalcaemia
#16
Natasha N DeMeo, Jeremy D Burgess, Patrick R Blackburn, Jennifer M Gass, John Richter, Herjot K Atwal, Jay A van Gerpen, Paldeep S Atwal
This case report describes an individual with brain calcifications, cognitive decline, motor dysfunction, and hypocalcaemia. Exome sequencing revealed a previously reported variant in the CASR gene and a variant of uncertain significance in PDGFRB . The clinical phenotype is likely explained by the CASR variant, but we discuss how the PDGFRB variant could also participate in the phenotype.
January 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29342995/-pediatric-myeloid-neoplasms-associated-with-eosinophilia-and-platelet-derived-growth-factor-receptor-beta-gene-rearrangement-a-case-report-and-literature-review
#17
X Y Zhang, T F Liu, C W Li, Q H Li, X F Zhu
Objective: To investigate the clinical features and therapeutic strategies of childhood myeloid neoplasms associated with eosinophilia and platelet-derived growth factor receptor beta (PDGFRB) gene rearrangement. Methods: Clinical data of myeloid neoplasms associated with eosinophilia and t (1;5) (q21;q33) chromosomal translocation of PDGFRB gene rearrangement in a child hospitalized in Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences on May 2015 was collected and analyzed...
January 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29328361/logistic-regression-analysis-for-the-identification-of-the-metastasis-associated-signaling-pathways-of-osteosarcoma
#18
Yang Liu, Wei Sun, Xiaojun Ma, Yuedong Hao, Gang Liu, Xiaohui Hu, Houlai Shang, Pengfei Wu, Zexue Zhao, Weidong Liu
Osteosarcoma (OS) is the most common histological type of primary bone cancer. The present study was designed to identify the key genes and signaling pathways involved in the metastasis of OS. Microarray data of GSE39055 were downloaded from the Gene Expression Omnibus database, which included 19 OS biopsy specimens before metastasis (control group) and 18 OS biopsy specimens after metastasis (case group). After the differentially expressed genes (DEGs) were identified using the Linear Models for Microarray Analysis package, hierarchical clustering analysis and unsupervised clustering analysis were performed separately, using orange software and the self-organization map method...
March 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29325620/primary-familial-brain-calcifications
#19
Beatriz Quintáns, Joao Oliveira, María-Jesús Sobrido
Primary familial brain calcification (PFBC) is a neurodegenerative disease with characteristic calcium deposits in the basal ganglia and other brain regions. The disease usually presents as a combination of abnormal movements, cognitive and psychiatric manifestations, clinically indistinguishable from other adult-onset neurodegenerative disorders. The differential diagnosis must be established with genetic and nongenetic disorders that can also lead to calcium deposits in encephalic structures. In the past years PFBC causal mutations have been discovered in genes related to calcium phosphate homeostasis (SLC20A2, XPR1) and in genes involved with endothelial function and integrity (PDGFB, PDGFRB)...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29325250/-myofibroma-myofibromatosis-a-clinicopathologic-analysis-of-9-cases
#20
Y Fu, W Y Guan, H Y Wu, H Y Wu, Z W Fan, Q Ye, F Q Meng
Objective: To investigate the clinical and histological features, diagnosis and differential diagnosis of myofibroma/myofibromatosis. Methods: The clinical data and pathology features of nine cases of myofibroma/myofibromatosis were collected from August 2011 to November 2016 in Affiliated Drum Tower Hospital, Nanjing University Medical School and Children's Hospital of Nanjing Medical University. Immunohistochemistry(IHC), PDGFRB molecular analysis and ETV6-NTRK3 gene fusion were performed and relevant literature reviewed...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
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