keyword
MENU ▼
Read by QxMD icon Read
search

trka

keyword
https://www.readbyqxmd.com/read/29454290/ligand-based-computer-aided-drug-design-reveals-new-tropomycin-receptor-kinase-a-trka-inhibitors
#1
Rand Shahin, Iman Mansi, Lubna Swellmeen, Tahani Alwidyan, Nabil Al-Hashimi, Yaser Al-Qarar'h, Omar Shaheen
Targeting tropomycin kinase A (TrkA) by small molecule inhibitors is considered as a promising strategy for treating several human cancers. To achieve this goal, a ligand based QSAR model was applied using the Discovery studio 4.5 (DS 4.5). Hence, a total list of 161 TrkA inhibitors was investigated. The TrkA inhibitors were extensively explored to detect their optimal physicochemical properties and pharmacophoric binding modes, which were converted into numeric descriptors and allowed to compete within the context of the Genetic Function Algorithm (GFA) approximations to find the subset of terms that correlates best with the activity...
January 13, 2018: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/29450621/ngf-protects-corneal-retinal-and-cutaneous-tissues-cells-from-phototoxic-effect-of-uv-exposure
#2
Maria Luisa Rocco, Bijorn Omar Balzamino, Luigi Aloe, Alessandra Micera
PURPOSE: Based on evidence that nerve growth factor (NGF) exerts healing action on damaged corneal, retinal, and cutaneous tissues, the present study sought to assess whether topical NGF application can prevent and/or protect epithelial cells from deleterious effects of ultraviolet (UV) radiation. METHODS: Eyes from 40 young-adult Sprague Dawley rats and cutaneous tissues from 36 adult nude mice were exposed to UVA/B lamp for 60 min, either alone or in the presence of murine NGF...
February 15, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29438801/specific-activity-features-in-the-forced-swim-test-brain-neurotrophins-and-development-of-stress-induced-depressive-like-behavior-in-rats
#3
Mikhail Stepanichev, Anna Manolova, Danil Peregud, Mikhail Onufriev, Sofia Freiman, Viktor Aniol, Yulia Moiseeva, Margarita Novikova, Natalia Lazareva, Natalia Gulyaeva
Selective vulnerability or resilience to mood disorders is related to individual differences or personality. In the present study forced swim test (FST) was used as a tool for division of male rats according to their immobility behavior. The animals were subjected to a chronic unpredictable mild stress (CUS). Depressive-like behavior and modifications in brain neurotrophin system of were examined after CUS exposure. The low immobile (LI) and high immobile (HI) rats demonstrated elusive differences in expression of BDNF ExVI mRNA and TrkA mRNA which was higher in hippocampus and frontal cortex, respectively, of HI rats as compared to LI animals...
February 10, 2018: Neuroscience
https://www.readbyqxmd.com/read/29429227/-effect-of-nerve-growth-factor-on-osteogenic-potential-of-type-2-diabetic-mice-bone-marrow-stromal-cell-in-vitro
#4
G S Cui, J Y Zeng, J Zhang, R Lu
Objective: To study the effects of nerve growth factor (NGF) on the proliferation, osteogenic differentiation and mineralization of type 2 diabetic mice bone marrow stromal cell (BMSC), providing basis for clinical application of NGF. Methods: Three 8-week-old male db/db mice and two 8-week-old male C57BL/6J mice were used in the study. BMSC derived from femur were cultured though adherence method. BMSC of C57BL/6J mice and db/db mice was divided into normal group and diabetic group to conduct the osteogenic potential experiment, named experiment one...
February 9, 2018: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/29420916/rutin-attenuates-cerebral-ischemia-reperfusion-injury-in-ovariectomized-rats-via-estrogen-receptor-mediated-bdnf-trkb-and-ngf-trka-signaling
#5
Hong Liu, Lili Zhong, Yuwei Zhang, Xuewei Liu, Ji Li
Rutin, a flavonoid glycoside, has been reported to exert neuroprotective effects. Loss of the endogenous estrogen and dysregulation of the estrogen receptor (ER) signaling pathway are associated with the increased risk of stroke in women after menopause. This study was performed to investigate whether rutin could protect against cerebral ischemia by modulating ER pathway. Ovariectomized (OVX) rats were given intraperitoneal injection of vehicle (DMSO), rutin (100 mg/kg) or 17β-estradiol (100 μg/kg) for 5 continuous days...
February 8, 2018: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29413894/altered-metabolism-of-leukemic-cells-new-therapeutic-opportunity
#6
Julia Starkova, Ivana Hermanova, Katerina Hlozkova, Alzbeta Hararova, Jan Trka
The cancer metabolic program alters bioenergetic processes to meet the higher demands of tumor cells for biomass production, nucleotide synthesis, and NADPH-balancing redox homeostasis. It is widely accepted that cancer cells mostly utilize glycolysis, as opposed to normal cells, in which oxidative phosphorylation is the most employed bioenergetic process. Still, studies examining cancer metabolism had been overlooked for many decades, and it was only recently discovered that metabolic alterations affect both the oncogenic potential and therapeutic response...
2018: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/29407522/ngf-dependent-neurons-and-neurobiology-of-emotions-and-feelings-lessons-from-congenital-insensitivity-to-pain-with-anhidrosis
#7
REVIEW
Yasuhiro Indo
NGF is a well-studied neurotrophic factor, and TrkA is a receptor tyrosine kinase for NGF. The NGF-TrkA system supports the survival and maintenance of NGF-dependent neurons during development. Congenital insensitivity to pain with anhidrosis (CIPA) is an autosomal recessive genetic disorder due to loss-of-function mutations in the NTRK1 gene encoding TrkA. Individuals with CIPA lack NGF-dependent neurons, including NGF-dependent primary afferents and sympathetic postganglionic neurons, in otherwise intact systems...
February 1, 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29407470/anticarcinogenic-activities-of-sulforaphane-are-influenced-by-nerve-growth-factor-in-human-melanoma-a375-cells
#8
Paola Arcidiacono, Anna Maria Stabile, Francesco Ragonese, Alessandra Pistilli, Stefano Calvieri, Ugo Bottoni, Andrea Crisanti, Roberta Spaccapelo, Mario Rende
Melanoma is a severe form of cancer, resistant to conventional therapies. According to in vitro studies, sulforaphane, a dietary component, has been considered a promising antineoplastic candidate. The present study analyzes the in vitro biological effects of sulforaphane in A375 melanoma cell line with or without the addition of Nerve Growth Factor. For the first time, our results show that a supplementation of Nerve Growth Factor partially reverses the sulforaphane-induced: i) inhibition of cell migration, ii) pro apoptotic changes in cell cycle and iii) modulation of active caspase-3...
January 30, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29392925/biological-effect-of-neoadjuvant-androgen-deprivation-therapy-assessed-on-specimens-from-radical-prostatectomy-a-systematic-review
#9
Alessandro Antonelli, Carlotta Palumbo, Alessandro Veccia, Salvatore Grisanti, Luca Triggiani, Stefania Zamboni, Maria Furlan, Claudio Simeone, Stefano Magrini, Alfredo Berruti
INTRODUCTION: Androgen-deprivation therapy (ADT) administered in neoadjuvant setting before radical prostatectomy (RP) represents an ideal in vivo human model to test the efficacy of hormonal treatments in prostate cancer (PCa). This review summarizes the findings from published studies specifically focused on the biological effects of ADT assessed on specimens from RP. The aim is to provide a base of knowledge that might be used to design future studies on neoadjuvant therapy for PCa...
February 1, 2018: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/29381137/multivesicular-bodies-mediate-long-range-retrograde-ngf-trka-signaling
#10
Mengchen Ye, Kathryn M Lehigh, David D Ginty
The development of neurons in the peripheral nervous system is dependent on target-derived, long-range retrograde neurotrophic factor signals. The prevailing view is that target-derived nerve growth factor (NGF), the prototypical neurotrophin, and its receptor TrkA are carried retrogradely by early endosomes, which serve as TrkA signaling platforms in cell bodies. Here, we report that the majority of retrograde TrkA signaling endosomes in mouse sympathetic neurons are ultrastructurally- and molecularly-defined multivesicular bodies (MVBs)...
January 30, 2018: ELife
https://www.readbyqxmd.com/read/29380702/biological-and-genetic-features-of-neuroblastoma-and-their-clinical-importance
#11
Nevim Aygun
Neuroblastoma derived from primitive cells of the sympathetic nervous system typically develops in the adrenal medulla or paraspinal ganglia. Neuroblastoma usually occurs sporadically, but familial cases are also observed. ALK and PHOX2B germline mutations can cause hereditary neuroblastoma, while a common genetic variation in chromosome 6p22 is associated to sporadic neuroblastoma. However, the aetiology of sporadic neuroblastoma is not exactly known. This embryonic malignancy generally represents the second most common solid tumour after central nervous system tumours throughout the world in childhood...
January 28, 2018: Current Pediatric Reviews
https://www.readbyqxmd.com/read/29374092/mycn-amplified-neuroblastoma-maintains-an-aggressive-and-undifferentiated-phenotype-by-deregulation-of-estrogen-and-ngf-signaling
#12
Johanna Dzieran, Aida Rodriguez Garcia, Ulrica Kristina Westermark, Aine Brigette Henley, Elena Eyre Sánchez, Catarina Träger, Henrik Johan Johansson, Janne Lehtiö, Marie Arsenian-Henriksson
Neuroblastoma (NB) is a remarkably heterogenic childhood tumor of the sympathetic nervous system with clinical behavior ranging from spontaneous regression to poorly differentiated tumors and metastasis. MYCN is amplified in 20% of cases and correlates with an undifferentiated, aggressive phenotype and poor prognosis. Estrogen receptor alpha (ERα) and the nerve growth factor (NGF) receptors TrkA and p75NTR are involved in neuronal differentiation and survival. We have previously shown that MYCN, via miR-18a, targets ERα in NB cells...
January 26, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29370427/alk-ros1-and-ntrk-rearrangements-in-metastatic-colorectal-cancer
#13
Filippo Pietrantonio, Federica Di Nicolantonio, Alexa B Schrock, Jeeyun Lee, Sabine Tejpar, Andrea Sartore-Bianchi, Jaclyn F Hechtman, Jason Christiansen, Luca Novara, Niall Tebbutt, Giovanni Fucà, Carlotta Antoniotti, Seung Tae Kim, Danielle Murphy, Rosa Berenato, Federica Morano, James Sun, Bosun Min, Philip J Stephens, Marissa Chen, Chiara Cremolini
Background: ALK, ROS1, and NTRK fusions occur in 0.2% to 2.4% of colorectal cancers. Pioneer cases of metastatic colorectal cancer (mCRC) patients bearing rearrangements who benefited from anti-ALK, ROS, and TrkA-B-C therapies have been reported previously. Here we aimed at characterizing the clinical and molecular landscape of ALK, ROS1, and NTRK rearranged mCRC. Methods: Clinical features and molecular characteristics of 27 mCRC patients bearing ALK, ROS1, and NTRK rearranged tumors were compared with those of a cohort of 319 patients not bearing rearrangements by means of Fisher's exact, χ2 test, or Mann-Whitney test as appropriate...
December 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29360440/a-novel-in-cell-elisa-method-for-screening-of-compounds-inhibiting-trka-phosphorylation-using-km12%C3%A2-cell-line-harboring-trka-rearrangement
#14
Manoj Kumar Pandre, Shama Shaik, V V V Satya Pratap, Prasad Yadlapalli, Mahesh Yanamandra, Sayan Mitra
Tropomyosin-related kinase A (TRKA) fusion was originally detected in colorectal carcinoma that had resulted in expression of the oncogenic chimeric protein TPM3-TRKA. Lately, many more rearrangements in TRK family of kinases generating oncogenic fusion proteins have been identified. These genetic rearrangements usually result in fusion of cytoplasmic kinase domain of TRK to another gene of interest resulting in constitutive kinase activity. Estimation of TRK inhibitor potency in a cellular context is required for drug discovery programs and is measured by receptor phosphorylation levels upon compound administration...
January 19, 2018: Analytical Biochemistry
https://www.readbyqxmd.com/read/29328070/nerve-growth-factor-upregulates-sirtuin-1-expression-in-cholestasis-a-potential-therapeutic-target
#15
Ming-Shian Tsai, Po-Huang Lee, Cheuk-Kwan Sun, Ting-Chia Chiu, Yu-Chun Lin, I-Wei Chang, Po-Han Chen, Ying-Hsien Kao
This study investigated the regulatory role of nerve growth factor (NGF) in sirtuin 1 (SIRT1) expression in cholestatic livers. We evaluated the expression of NGF and its cognate receptors in human livers with hepatolithiasis and the effects of NGF therapy on liver injury and hepatic SIRT1 expression in a bile duct ligation (BDL) mouse model. Histopathological and molecular analyses showed that the hepatocytes of human diseased livers expressed NGF, proNGF (a precursor of NGF), TrkA and p75NTR, whereas only p75NTR was upregulated in hepatolithiasis, compared with non-hepatolithiasis livers...
January 12, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29325876/nogo-a-interacts-with-trka-to-alter-nerve-growth-factor-signaling-in-nogo-a-overexpressing-pc12-cells
#16
Robert G Farrer, Gwendolyn L Kartje
The Nogo-A protein, originally discovered as a potent myelin-associated inhibitor of neurite outgrowth, is also expressed by certain neurons, especially during development and after injury, but its role in neuronal function is not completely known. In this report, we overexpressed Nogo-A in PC12 cells to use as a model to identify potential neuronal signaling pathways affected by endogenously expressed Nogo-A. Unexpectedly, our results show that viability of Nogo-A-overexpressing cells was reduced progressively due to apoptotic cell death following NGF treatment, but only after 24 h...
January 8, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29319543/choline-acetyltransferase-and-trka-expression-as-well-as-the-improvement-in-cognition-produced-by-e2-and-p4-in-ovariectomized-rats-are-blocked-by-ici-182%C3%A2-780-and-ru486
#17
Judith Espinosa-Raya, Ulises Cruz-Raya, Margarita López-Martínez, Ofir Picazo
Treatment with 17-β estradiol and progesterone improves the performance of ovariectomized rats in an autoshaping learning task, representing cognitive improvement. To test whether this is attributable to genomic mechanisms, the antiestrogen ICI 182 780 or antiprogesterone RU486 was injected into ovariectomized animals primed previously with estrogen or progesterone, respectively. Compared with the vehicle control, each hormone administered alone produced an elevated expression of choline acetyltransferase and TrkA, along with an improvement in performance on the behavioral test...
January 9, 2018: Behavioural Pharmacology
https://www.readbyqxmd.com/read/29312631/proteomic-approach-toward-determining-the-molecular-background-of-pazopanib-resistance-in-synovial-sarcoma
#18
Zhiwei Qiao, Kumiko Shiozawa, Tadashi Kondo
Pazopanib, a multitarget tyrosine kinase (TK) inhibitor, has been approved for treatment of soft tissue sarcoma. Elucidation of the molecular background of pazopanib resistance should lead to improved clinical outcomes in sarcomas; accordingly, we investigated this in synovial sarcoma using a proteomic approach. Pazopanib sensitivity was examined in four synovial sarcoma cell lines: SYO-1, HS-SYII, 1273/99, and YaFuSS. The 1273/99 cell line showed significantly higher IC50 values than the others for pazopanib...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29312610/inhibitor-repurposing-reveals-alk-ltk-fgfr-ret-and-trk-kinases-as-the-targets-of-azd1480
#19
Iva Gudernova, Lukas Balek, Miroslav Varecha, Jana Fialova Kucerova, Michaela Kunova Bosakova, Bohumil Fafilek, Veronika Palusova, Stjepan Uldrijan, Lukas Trantirek, Pavel Krejci
Many tyrosine kinase inhibitors (TKIs) have failed to reach human use due to insufficient activity in clinical trials. However, the failed TKIs may still benefit patients if their other kinase targets are identified by providing treatment focused on syndromes driven by these kinases. Here, we searched for novel targets of AZD1480, an inhibitor of JAK2 kinase that recently failed phase two cancer clinical trials due to a lack of activity. Twenty seven human receptor tyrosine kinases (RTKs) and 153 of their disease-associated mutants were in-cell profiled for activity in the presence of AZD1480 using a newly developed RTK plasmid library...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29312563/trkb-promotes-laryngeal-cancer-metastasis-via-activation-pi3k-akt-pathway
#20
Liang Jiang, Zhihai Wang, Chuan Liu, Zhitao Gong, Yucheng Yang, Houyong Kang, Yanshi Li, Guohua Hu
Objectives: The aim of our study was to investigate the role of TrkB pathway in tumor occurrence and development for in order to provide theoretical basis to laryngeal cancer therapy. Materials and methods: Biological characteristics of the cells were studied by migration tests and colony forming assay. Gene and protein expression analysis was performed by RT-PCR or western blot. in vivo experiments were conducted in syngeneic BALB/c mice. Results: Significant changes in protein and gene expression, including higher expression level of TrkB, were found in cells and laryngeal cancer specimens...
December 12, 2017: Oncotarget
keyword
keyword
25194
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"