keyword
MENU ▼
Read by QxMD icon Read
search

Mtor

keyword
https://www.readbyqxmd.com/read/28734155/activation-of-mtor-is-involved-in-anti-%C3%AE-2gpi-%C3%AE-2gpi-induced-expression-of-tissue-factor-and-il-8-in-monocytes
#1
Longfei Xia, Hong Zhou, Ting Wang, Yachao Xie, Ting Wang, Xiaoyan Wang, Jinchuan Yan
Previous study has demonstrated that activation of the mammalian target of rapamycin (mTOR) pathway in endothelial cells (ECs) results in the formation of chronic vascular lesions associated with antiphospholipid syndrome (APS). In addition, it has been shown that stimulation of monocytes and ECs by antiphospholipid antibodies (aPL) leads to a prothrombotic and proinflammatory state and up-regulated expression of tissue factor (TF) and inflammatory cytokines. However, the role of mTOR in pathogenic mechanisms of APS remains largely unexplored...
June 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28732118/pd-1-checkpoint-blockade-in-combination-with-an-mtor-inhibitor-restrains-hepatocellular-carcinoma-growth-induced-by-hepatoma-cell-intrinsic-pd-1
#2
Hui Li, Xiaoqiang Li, Shuang Liu, Lei Guo, Bo Zhang, Jubo Zhang, Qinghai Ye
Inhibitors of PD-1 administered as single agents have resulted in durable tumor regression in advanced cancer patients. However, only a minority of cancer patients respond to anti PD-1 immunotherapy. Here, we show that PD-1 expression in hepatocellular carcinoma (HCC) promotes tumor growth independently of adaptive immunity. Knockdown of PD-1 suppress tumor growth, whereas PD-1 overexpression enhances tumorigenesis in immunodeficient xenografted mice. Mechanistically, PD-1 binds the downstream mTOR effectors eukaryotic initiation factor 4E (eIF4E) and ribosomal protein S6 (S6), thus promoting their phosphorylation...
July 21, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28731988/roles-of-mitogen-activating-protein-kinase-kinase-kinase-kinase-3-map4k3-in-preterm-skeletal-muscle-satellite-cell-myogenesis-and-mammalian-target-of-rapamycin-complex-1-mtorc1-activation-regulation
#3
Chu-Yi Guo, Mu-Xue Yu, Jie-Min Dai, Si-Nian Pan, Zhen-Tong Lu, Xiao-Shan Qiu, Si-Qi Zhuang
BACKGROUND Preterm skeletal muscle genesis is a paradigm for myogenesis. The role of mitogen-activating protein kinase kinase kinase kinase-3 (MAP4K3) in preterm skeletal muscle satellite cells myogenesis or its relationship to mammalian target of rapamycin complex 1 (mTORC1) activity have not been previously elaborated. MATERIAL AND METHODS Small interfering RNA (siRNA) interference technology was used to inhibit MAP4K3 expression. Leucine stimulation experiments were performed following MAP4K3-siRNA interference...
July 21, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28731223/neferine-modulates-igf-1r-nrf2-signaling-in-doxorubicin-treated-h9c2-cardiomyoblasts
#4
Lohanathan Bharathi Priya, Rathinasamy Baskaran, Chih-Yang Huang, Viswanadha Vijaya Padma
Doxorubicin (DOX) induced cardiotoxicity is a major problem during chemotherapy of cancers. DOX-mediated suppression of type 1 IGF receptor (IGF-1R) signaling leads to cardiac dysfunction. Neferine, a bisbezylisoquinoline alkaloid from the seed embryos of Nelumbo nucifera Gaertn possesses a distinct range of pharmacological properties. Herewith, the present study attempts to elucidate the protective role of neferine against DOX induced toxicity in H9c2 rat cardiomyoblast cell line model. DOX-treated H9c2 cells significantly increased mitochondrial superoxide generation, depleted cellular antioxidant status, suppressed the activation of IGF-1R signaling via PI3K/Akt/mTOR and induced autophagy by the activation of ULK1, Beclin1, Atg7 and LC3B...
July 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28731193/promotion-of-glycolysis-by-hotair-through-glut1-upregulation-via-mtor-signaling
#5
Shibo Wei, Qing Fan, Liang Yang, Xiaodong Zhang, Yingbo Ma, Zhihong Zong, Xiangdong Hua, Dongming Su, Hongzhi Sun, Hangyu Li, Zhen Liu
The long non-coding RNA HOX transcript antisense RNA (HOTAIR) plays a key role in the progression of various carcinomas. However, whether or not HOTAIR influences glucose metabolism and the specific underlying mechanism in hepatocellular carcinoma (HCC) cells remain unclear. In the present study, we found markedly increased HOTAIR expression in 84 HCC tissues and demonstrated that HOTAIR overexpression promoted cell proliferation using Cell Counting Kit-8. The effect on glucose metabolism regulated by HOTAIR in HCC cells was determined by detecting lactate and glucose levels: HOTAIR promoted glycolysis by upregulating glucose transporter isoform 1 (GLUT1) and activating mammalian target of rapamycin (mTOR) signaling, whereas knockdown of HOTAIR suppressed this effect...
July 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731179/clinical-significance-of-mir-138-in-patients-with-malignant-melanoma-through-targeting-of-pdk1-in-the-pi3k-akt-autophagy-signaling-pathway
#6
Fanjun Meng, Yuxia Zhang, Xing Li, Juan Wang, Zhiyu Wang
The present study investigated the clinical significance of miR-138 in patients with malignant melanoma (MM), which has previously been associated with tumor growth. In patients with MM, we found that the expression of miR-138 was significantly downregulated when compared with healthy control subjects. Overexpression of miR-138 in the human melanoma cell line A2058 inhibited cell proliferation and induced cell apoptosis, and increased caspase-3 and Bax protein expression when compared with a negative control group...
July 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731173/anacardic-acid-induces-cell-apoptosis-of-prostatic-cancer-through-autophagy-by-er-stress-dapk3-akt-signaling-pathway
#7
Jing Tan, Xianzhen Jiang, Guangming Yin, Leye He, Jianye Liu, Zhi Long, Zhiqiang Jiang, Kun Yao
Anacardic acid, which is commonly seen in plants of Anacardiaceae, is an important composition of cashew, ginkgo leaf and fruit, and it has been suggested in previous research to show antitumor activity. The main aim of the present study was to evaluate the anticancer effects of anacardic acid on cell apoptosis of prostatic cancer and molecular mechanisms of this phenomenon. In this study we found that anacardic acid inhibited cell proliferation, induced apoptosis and caspase-3/9 activities and Bax protein expression of prostatic cancer...
July 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731147/beclin-1-overexpression-inhibits-chondrocyte-apoptosis-and-downregulates-extracellular-matrix-metabolism-in-osteoarthritis
#8
Bin Song, Hong Song, Weiguo Wang, Hongru Wang, Hanyuan Peng, Jing Cui, Rong Wang, Hua Huang, Wei Wang, Lili Wang
In the present study, the expression of Beclin 1 in osteoarthritis (OA) cartilage tissue was investigated, and also its role in proliferation, apoptosis and expression of matrix metalloproteinases (MMPs) in chondrocytes obtained from patients with OA. Beclin 1 expression in cartilage tissue from OA patients, and in the age- and sex-matched controls, was detected by immunohistochemistry, semi-quantitative polymerase chain reaction and western blotting. Chondrocytes were divided into control and Beclin 1-overexpressed groups...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28730955/itraq-based-proteomic-analysis-of-appsw-ind-mice-provides-insights-into-the-early-changes-in-alzheimer-s-disease
#9
Nan Li, Pinghong Hu, Tiantian Xu, Huan Chen, Xiaoying Chen, Jianwen Hu, Xifei Yang, Lei Shi, Jian-Hong Luo, Junyu Xu
BACKGROUND: Several proteins have been identified as potential diagnostic biomarkers in imaging, genetic, or proteomic studies in Alzheimer disease (AD) patients and mouse models. However, biomarkers for presymptom diagnosis of AD are still under investigation, as are the presymptom molecular changes in AD pathogenesis. OBJECTIVE: In this study, we aim to analyzed the early proteomic changes in APPSw,Ind mice and to conduct further functional studies on interesting proteins...
July 19, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28730830/preventive-effect-of-l-carnitine-on-the-disorder-of-lipid-metabolism-and-circadian-cclock-of-mice-subjected-to-chronic-jet-lag
#10
X Xie, A Guo, T Wu, Q Hu, L Huang, C Yao, B Zhao, W Zhang, B Chi, P Lu, Z Zhao, Z Fu
Circadian clock plays an essential role in orchestrating daily physiology, and its disruption can evoke metabolic diseases such as obesity. L-Carnitine can reduce blood lipid levels, and ameliorate fatty liver through regulating lipid metabolism. However, whether L-Carnitine administration may affect the disturbance of lipid metabolism and circadian rhythm of mice induced by prolonged circadian disruption is still unknown. Herein, we investigated the effects of L-Carnitine on conditions of circadian clock and lipid metabolism through a chronic jet-lag mice model which was developed by reversing12 h light/12 h dark cycle every 4 days for a continuous 12 weeks...
July 18, 2017: Physiological Research
https://www.readbyqxmd.com/read/28730764/mtor-deregulation-in-oral-cavity-squamous-cell-carcinoma
#11
Nicholas S Mastronikolis, Evangelos Tsiambas, Theodoros A Papadas, Panagiotis P Fotiades, Athanasios T Papadas, Stylianos N Mastronikolis, Ioannis Kastanioudakis, Vasileios Ragos
Signal transduction pathways consist of a variety of inter- and intra-cellular molecules. They act as supporting mechanisms for cell survival and homeostasis. Among them, the phosphatidylinositol 3-kinase (PI3K)/tumor suppressor phosphatase and tensin homologue deleted on chromosome ten (PTEN)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) pathway plays a crucial role in regulating normal cell growth based on growth factor receptors (GFRs) interaction, including epidermal GFR (type II-HER2) and insulin GFR (IGF)...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28730648/calcineurin-inhibitor-withdrawal-or-tapering-for-kidney-transplant-recipients
#12
REVIEW
Krishna M Karpe, Girish S Talaulikar, Giles D Walters
BACKGROUND: Calcineurin inhibitors (CNI) can reduce acute transplant rejection and immediate graft loss but are associated with significant adverse effects such as hypertension and nephrotoxicity which may contribute to chronic rejection. CNI toxicity has led to numerous studies investigating CNI withdrawal and tapering strategies. Despite this, uncertainty remains about minimisation or withdrawal of CNI. OBJECTIVES: This review aimed to look at the benefits and harms of CNI tapering or withdrawal in terms of graft function and loss, incidence of acute rejection episodes, treatment-related side effects (hypertension, hyperlipidaemia) and death...
July 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28730238/altered-expression-of-mtor-and-autophagy-in-term-normal-human-placentas
#13
Qiu Xia Zhang, Quan Na, Weiwei Song
Mammalian target of rapamycin (mTOR) and autophagy have been implied in trophoblast cells proliferation and invasion. This study investigated whether mTOR and autophagy were involved in placental development and fetal programming. A total of 90 term normal placentas (37-42 gestational weeks) were collected from women who underwent elective cesarean section, with large for gestational age (LGA), fetal growth restriction (FGR), and appropriate for gestational age (AGA) infants (n=30, respectively). Capillary volume density within peripheral villi significantly decreased in the FGR placentas compared with the AGA group (p<0...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729914/effects-of-mtor-on-neurological-deficits-after-transient-global-ischemia
#14
Jihong Xing, Jian Lu
Mammalian target of rapamycin (mTOR) is a serine/threonine protein kinase and activation of its signal pathway plays an important role in regulating protein growth and synthesis as well as cell proliferation and survival. In the present study, we examined the contribution of mTOR and its downstream products to brain injuries and neurological deficiencies after cardiac arrest (CA) induced-transient global ischemia. CA was induced by asphyxia followed by cardiopulmonary resuscitation (CPR) in rats. Our results showed that expression of p-mTOR, mTOR-mediated phosphorylation of 4E-binding protein 4 (4E-BP1) and p70 ribosomal S6 protein kinase 1 (S6K1) pathways were amplified in CA rats compared to their controls...
2017: Translational Neuroscience
https://www.readbyqxmd.com/read/28729536/weakened-il-15-production-and-impaired-mtor-activation-alter-dendritic-epidermal-t-cell-homeostasis-in-diabetic-mice
#15
Zhongyang Liu, Guangping Liang, Li Gui, Yashu Li, Meixi Liu, Yang Bai, Xiaorong Zhang, Xiaohong Hu, Jian Chen, Chibing Huang, Xusheng Liu, Gaoxing Luo, Jun Wu, Weifeng He
Diabetes is associated with impaired wound healing, which may be caused primarily by a deficiency in dendritic epidermal T cells (DETCs). In the epidermis, IL-15, IGF-1, and mTOR are known to regulate the maintenance of DETCs; however, it is unclear how these molecules may intersect to regulate DETC homeostasis in diabetes. Here, we show that the reduction of DETCs in the epidermis of diabetic mice is caused by altered homeostasis mediated by a reduction in IL-15 levels. Both impaired mTOR activation and reduction of IL-15 in the epidermis play important roles in DETC homeostasis...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729464/mir-15a-5p-levels-correlate-with-poor-ovarian-response-in-human-follicular-fluid
#16
Kaiyue Zhang, Wanxia Zhong, Wei-Ping Li, Zijiang Chen, Cong Zhang
Poor ovarian response is a significant problem encountered during in vitro fertilization and embryo transfer procedures. Many infertile women may suffer from poor ovarian response and its incidence tends to be increasing in young patients nowadays. It is a major cause of maternal infertility because it is associated with low pregnancy and live birth rates. However, the cause of poor ovarian response is not clear. In this study, we extracted microRNAs from human follicular fluid and performed miRNA sequencing to investigate a potential posttranscriptional mechanism underlying poor ovarian response...
July 20, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28729346/distinct-pka-regulatory-subunits-mediate-pge2-inhibition-of-tgf%C3%AE-1-stimulated-collagen-i-translation-and-myofibroblast-differentiation
#17
Scott H Wettlaufer, L Raghu Penke, Katsuhide Okunishi, Marc Peters-Golden
Prostaglandin E2 (PGE2), via cAMP signaling, inhibits a variety of fibroblast functions relevant to fibrogenesis. Among these are their translation of collagen I protein and their differentiation to myofibroblasts. PKA is central to these actions, with cAMP binding to regulatory (R) subunits leading to the release of catalytic subunits. Here we examined the role of specific PKAR subunit isoforms in these inhibitory actions in transforming growth factorβ-1 (TGFβ-1)-stimulated human lung fibroblasts (HLFs)...
July 20, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28728363/effect-of-different-levels-of-protein-concentrates-supplementation-on-the-growth-performance-plasma-amino-acids-profile-and-mtor-cascade-genes-expression-in-early-weaned-yak-calves
#18
Quhani Peng, Nazir Ahmad Khan, B Xue, T H Yan, Z S Ahmad Wang
Objective: Yak is anone of the most important livestock species in the alpine-meadow grasslands of Qinghai-Tibetan plateau. WeThis study evaluated the effects of different levels of protein concentrate supplementation on the growth performance of yak calves, and correlated the growth rate to the changes occurring in the plasma- amino acids, and -insulin profile, and to the signaling activity of mammalian target of rapamycin (mTOR) cascade, in order to characterize the mechanism through which the protein synthesis can be improved in early weaned yaks...
June 27, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728293/-curcumin-induces-apoptosis-and-protective-autophagy-in-human-gastric-cancer-cells-with-different-degree-of-differentiation
#19
W Li, Y Zhou, J Yang, H H Zhang, S L Zhao, T Zhang, J Huo, P Zheng
Objective: To investigate the effect of curcumin on the apoptosis and autophagy of human gastric cancer cells with different degree of differentiation. Methods: Gastric cancer cell lines BGC-823 and MKN-28 were treated with curcumin at different concentrations. The effect of curcumin on cell proliferation was measured by MTT assay. Apoptosis was assessed by flow cytometry. Autophagy status was analyzed by acridine orange staining. The expression levels of apoptotic and autophagy-related proteins were detected by Western blot...
July 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28727815/polymorphisms-associated-with-everolimus-pharmacokinetics-toxicity-and-survival-in-metastatic-breast-cancer
#20
Tomas Pascual, María Apellániz-Ruiz, Cristina Pernaut, Cecilia Cueto-Felgueroso, Pablo Villalba, Carlos Álvarez, Luis Manso, Lucia Inglada-Pérez, Mercedes Robledo, Cristina Rodríguez-Antona, Eva Ciruelos
PURPOSE: Metastatic breast cancer (MBC) progressing after endocrine therapy frequently activates PI3K/AKT/mTOR pathway. The BOLERO-2 trial showed that everolimus-exemestane achieves increased progression free survival (PFS) compared with exemestane. However, there is great inter-patient variability in toxicity and response to exemestane-everolimus treatment. The objective of this study was to perform an exploratory study analyzing the implication of single nucleotide polymorphisms (SNPs) on outcomes from this treatment through a pharmacogenetic analysis...
2017: PloS One
keyword
keyword
906
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"