keyword
MENU ▼
Read by QxMD icon Read
search

Akt

keyword
https://www.readbyqxmd.com/read/27933547/anti-neuroinflammatory-effects-of-fucoxanthin-via-inhibition-of-akt-nf-%C3%AE%C2%BAb-and-mapks-ap-1-pathways-and-activation-of-pka-creb-pathway-in-lipopolysaccharide-activated-bv-2-microglial-cells
#1
Dong Zhao, Seung-Hwan Kwon, Yoon Sun Chun, Ming-Yao Gu, Hyun Ok Yang
Microglia play a critical role in controlling the homeostasis of the brain, but over-activated microglia secrete pro-inflammatory mediators and cytokines, which induce neuronal cell death. Fucoxanthin (Fx), a marine carotenoid, has demonstrated a variety of beneficial health effects. Despite accumulating evidence supporting the immune-modulating effects of Fx in vitro, the underlying signaling pathways remain unknown. In the present study, Fx dose-dependently inhibited the secretion of lipopolysaccharide (LPS)-induced pro-inflammatory mediators including interleukin (IL)-6, tumor necrosis factor (TNF)-α, reactive oxygen species (ROS), prostaglandin (PG) E2, and nitric oxide (NO) productions, and also suppressed the expression of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2 enzymes...
December 8, 2016: Neurochemical Research
https://www.readbyqxmd.com/read/27933435/ranolazine-promotes-muscle-differentiation-and-reduces-oxidative-stress-in-c2c12-skeletal-muscle-cells
#2
Terruzzi Ileana, Montesano Anna, Senesi Pamela, Vacante Fernanda, Benedini Stefano, Luzi Livio
PURPOSE: The purpose of this study is to investigate Ranolazine action on skeletal muscle differentiation and mitochondrial oxidative phenomena. Ranolazine, an antianginal drug, which acts blocking the late INaL current, was shown to lower hemoglobin A1c in patients with diabetes. In the present study, we hypothesized an action of Ranolazine on skeletal muscle cells regeneration and oxidative process, leading to a reduction of insulin resistance. METHODS: 10 μM Ranolazine was added to C2C12 murine myoblastic cells during proliferation, differentiation and newly formed myotubes...
December 8, 2016: Endocrine
https://www.readbyqxmd.com/read/27932955/what-do-we-really-know-about-5-ht1a-receptor-signaling-in-neuronal-cells
#3
REVIEW
Paulina S Rojas, Jenny L Fiedler
Serotonin (5-HT) is a neurotransmitter that plays an important role in neuronal plasticity. Variations in the levels of 5-HT at the synaptic cleft, expression or dysfunction of 5-HT receptors may alter brain development and predispose to various mental diseases. Here, we review the transduction pathways described in various cell types transfected with recombinant 5-HT1A receptor (5-HT1AR), specially contrasting with those findings obtained in neuronal cells. The 5-HT1AR is detected in early stages of neural development and is located in the soma, dendrites and spines of hippocampal neurons...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27932243/inhibition-of-mtor-eif4e-by-anti-viral-drug-ribavirin-effectively-enhances-the-effects-of-paclitaxel-in-oral-tongue-squamous-cell-carcinoma
#4
Dehua Dai, Hujie Chen, Jing Tang, Yi Tang
Upregulation of eIF4E is associated with poor clinical outcome in many human cancers and represents a potential therapeutic target. However, the function of eIF4E remains unknown in oral tongue squamous cell carcinoma (OTSCC). In this work, we show that ribavirin, an anti-viral drug, effectively augments sensitivity of OTSCC cells to paclitaxel via inhibiting mTOR/eIF4E signaling pathway. Ribavirin dose-dependently inhibits proliferation and induces apoptosis in SCC-9 and CAL27 cells. Combination of ribavirin and paclitaxel are more effectively in inhibiting proliferation and inducing apoptosis in OTSCC cells...
December 5, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27931240/skeletal-muscle-characteristics-are-preserved-in-htert-cdk4-human-myogenic-cell-lines
#5
Matthew Thorley, Stéphanie Duguez, Emilia Maria Cristina Mazza, Sara Valsoni, Anne Bigot, Kamel Mamchaoui, Brennan Harmon, Thomas Voit, Vincent Mouly, William Duddy
BACKGROUND: hTERT/cdk4 immortalized myogenic human cell lines represent an important tool for skeletal muscle research, being used as therapeutically pertinent models of various neuromuscular disorders and in numerous fundamental studies of muscle cell function. However, the cell cycle is linked to other cellular processes such as integrin regulation, the PI3K/Akt pathway, and microtubule stability, raising the question as to whether genetic modification related to the cell cycle results in secondary effects that could undermine the validity of these cell models...
December 8, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27931028/sustained-effects-of-neonatal-systemic-lipopolysaccharide-on-il-1%C3%AE-and-nrf2-in-adult-rat-substantia-nigra-are-partly-normalized-by-a-spirulina-enriched-diet
#6
Jaspal Patil, Ashok Matte, Hans Nissbrandt, Carina Mallard, Mats Sandberg
BACKGROUND/AIM: Neonatal infection can sensitize the adult substantia nigra (SN) to secondary insults, causing a decrease in antioxidant capacity which may lead to Parkinson's disease in adults. We studied the prolonged effect of systemic infection by (i.p.) administration of lipopolysaccharide (LPS) on interleukin (IL)-1β, the antioxidant regulator nuclear factor-erythroid 2-related factor 2 (Nrf2), and the peroxisome proliferator-activated receptor γ coactivator (PGC)-1α in rat SN...
December 9, 2016: Neuroimmunomodulation
https://www.readbyqxmd.com/read/27931017/lean-body-weight-and-metformin-are-insufficient-to-prevent-endometrial-hyperplasia-in-mice-harboring-inactivating-mutations-in-pten
#7
David A Iglesias, Qian Zhang, Joseph Celestino, Charlotte C Sun, Melinda S Yates, Rosemarie E Schmandt, Karen H Lu
OBJECTIVES: Obesity is a major risk factor for endometrial cancer. We evaluated whether obesity exacerbates progression of endometrial hyperplasia (EH) using the PRCre/+ PTENflox/+ mouse model and examined if the type 2 diabetes drug, metformin, could prevent EH. METHODS: Twenty obese (PRCre/+ PTENflox/+) mice were maintained on a high-fat diet, while 20 lean mice ate a matching low-fat diet. Ten mice from each group received metformin (1,000 mg/day) in drinking water...
December 9, 2016: Oncology
https://www.readbyqxmd.com/read/27930985/c1q-tnf-related-protein-3-exerts-the-chondroprotective-effects-in-il-1%C3%AE-treated-sw1353-cells-by-regulating-the-fgfr1-signaling
#8
Yuanxia Huang, Guang Wan, Jingang Tao
Cartilage degeneration is known as a major cause of osteoarthritis (OA). C1q/TNF-related protein-3 (CTRP3) is an adipokine relative to chondrogenesis in vitro. However, its effect on cartilage degeneration in OA remains unclearly. In the present study, SW1353 cells were treated with IL-1β to imitate the microenvironment of OA for vitro research. Then, an obvious down-regulation of CTRP3 were validated in IL-1β-treated SW1353 cells. In addition, CTRP3 overexpression significantly attenuated the decrease in cell proliferation and increase in cell apoptosis triggered by IL-1β...
December 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27930981/inhibiting-pi3k-akt-signaling-pathway-is-involved-in-antitumor-effects-of-ginsenoside-rg3-in-lung-cancer-cell
#9
Qipeng Xie, Huaikai Wen, Qiong Zhang, Weihe Zhou, Xiaoming Lin, Deyao Xie, Yu Liu
Lung cancer is recognized as the most prevalent type of cancer with high death rate. Ginsenoside Rg3 isolated from Traditional Chinese Medicine Panax Ginseng has significant anticancer effects on many tumors. In this study, the effects of ginsenoside Rg3 on cells viability, apoptosis and PI3K/Akt signaling pathway in lung cancer cells were investigated in vitro and in vivo. In vitro, the viability of lung cancer cell lines A549,H23 was examined by CCK-8 kits; The proportion of cell apoptosis was measured by flow cytometry...
December 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27930977/eupatilin-prevents-h2o2-induced-oxidative-stress-and-apoptosis-in-human-retinal-pigment-epithelial-cells
#10
Lei Du, Jia Chen, Yi-Qiao Xing
Eupatilin, a pharmacologically active flavone derived from the Artemisia plant species, is known to possess anti-oxidant activity. However, the effects of eupatilin on oxidative stress-induced retinal damage in retinal pigment epithelium (RPE) cells and the potential mechanisms involved have not been explored. Therefore, the aim of this study was to investigate the effects of eupatilin on oxidative stress-induced retinal damage in RPE cells. Our results showed that eupatilin significantly attenuated H2O2-induced cell injury and ROS production in ARPE-19 cells...
December 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27930974/mir-200c-enhances-sensitivity-of-drug-resistant-non-small-cell-lung-cancer-to-gefitinib-by-suppression-of-pi3k-akt-signaling-pathway-and-inhibites-cell-migration-via-targeting-zeb1
#11
Guohua Zhou, Fangli Zhang, Yu Guo, Jianfei Huang, Yaqiong Xie, Shuanglei Yue, Minghui Chen, Hao Jiang, Mengjie Li
Acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) is a major obstacle in the treatment of non-small cell lung cancer (NSCLC) patients. We explored the role of miR-200c in modulating the sensitivity of gefitinib-resistant NSCLC cells and examined the underlying mechanism. The gefitinib-resistant cell line PC-9-ZD and its parental PC-9 cells were used. Growth inhibition was detected by MTT assay. The cell apoptosis was detected by Annexin V/PI assay. Cell migration was assessed by wound-healing assay...
December 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27930802/ap39-a-mitochondria-targeting-hydrogen-sulfide-h2-s-donor-protects-against-myocardial-reperfusion-injury-independently-of-salvage-kinase-signalling
#12
Qutuba G Karwi, Julia Bornbaum, Kerstin Boengler, Roberta Torregrossa, Matthew Whiteman, Mark E Wood, Rainer Schulz, Gary F Baxter
BACKGROUND AND PURPOSE: H2 S protects myocardium against ischaemia-reperfusion injury. This protection may involve the cytosolic reperfusion injury salvage kinase (RISK) pathway, but direct effects on mitochondrial function are possible. Here, we investigated the potential cardioprotective effect of mitochondria-specific H2 S donor, AP39, at reperfusion against ischaemia/reperfusion injury. EXPERIMENTAL APPROACH: Anaesthetised rats underwent myocardial (30 min ischaemia/120 min reperfusion) with randomisation to receive interventions prior to reperfusion: vehicle, AP39 (0...
December 8, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27930667/protein-phosphatase-6-protects-prophase-i-arrested-oocytes-by-safeguarding-genomic-integrity
#13
Meng-Wen Hu, Tie-Gang Meng, Zong-Zhe Jiang, Ming-Zhe Dong, Heide Schatten, Xingzhi Xu, Zhen-Bo Wang, Qing-Yuan Sun
Mammalian oocytes are arrested at prophase of the first meiotic division in the primordial follicle pool for months, even years, after birth depending on species, and only a limited number of oocytes resume meiosis, complete maturation, and ovulate with each reproductive cycle. We recently reported that protein phosphatase 6 (PP6), a member of the PP2A-like subfamily, which accounts for cellular serine/threonine phosphatase activity, functions in completing the second meiosis. Here, we generated mutant mice with a specific deletion of Ppp6c in oocytes from the primordial follicle stage by crossing Ppp6cF/F mice with Gdf9-Cre mice and found that Ppp6cF/F; GCre+ mice are infertile...
December 8, 2016: PLoS Genetics
https://www.readbyqxmd.com/read/27930322/casitas-b-cell-lymphoma-cbl-proteins-protect-mammary-epithelial-cells-from-proteotoxicity-of-active-c-src-accumulation
#14
Chandrani Mukhopadhyay, Aleata Triplett, Tom Bargar, Carol Heckman, Kay-Uwe Wagner, Mayumi Naramura
Casitas B-cell lymphoma (Cbl) family ubiquitin ligases negatively regulate tyrosine kinase-dependent signal transduction by promoting degradation of active kinases. We and others previously reported that loss of Cbl functions caused hyperproliferation in lymphoid and hematopoietic systems. Unexpectedly, Cbl deletion in Cbl-b-null, Cbl-c-null primary mouse mammary epithelial cells (MECs) (Cbl triple-deficiency) induced rapid cell death despite enhanced MAP kinase and AKT activation. Acute Cbl triple-deficiency elicited distinct transcriptional and biochemical responses with partial overlap with previously described cellular reactions to unfolded proteins and oxidative stress...
December 5, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27929439/cell-death-in-chondrocytes-osteoblasts-and-osteocytes
#15
REVIEW
Toshihisa Komori
Cell death in skeletal component cells, including chondrocytes, osteoblasts, and osteocytes, plays roles in skeletal development, maintenance, and repair as well as in the pathogenesis of osteoarthritis and osteoporosis. Chondrocyte proliferation, differentiation, and apoptosis are important steps for endochondral ossification. Although the inactivation of P53 and RB is involved in the pathogenesis of osteosarcomas, the deletion of p53 and inactivation of Rb are insufficient to enhance chondrocyte proliferation, indicating the presence of multiple inhibitory mechanisms against sarcomagenesis in chondrocytes...
December 6, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27929425/the-coexistence-of-hypertension-and-ovariectomy-additively-increases-cardiac-apoptosis
#16
Yi-Yuan Lin, Yu-Jung Cheng, Jun Hu, Li-Xi Chu, Woei-Cherng Shyu, Chung-Lan Kao, Tzer-Bin Lin, Chia-Hua Kuo, Ai-Lun Yang, Shin-Da Lee
To investigate whether the coexistence of hypertension and ovariectomy will increase cardiac Fas receptor and mitochondrial-dependent apoptotic pathways, histopathological analysis, the TUNEL assay and Western blotting were performed on the excised hearts from three groups of female spontaneously hypertensive rats (SHR), which were divided into a sham-operated group (SHR-Sham), bilaterally ovariectomized group (SHR-OVX) and normotensive Wistar Kyoto rats (WKY). Compared with the WKY group, the SHR-Sham group exhibited decreased protein levels of ERα, ERβ, p-Akt/Akt, Bcl-2, Bcl-xL and p-Bad and decreased further in the SHR-OVX group, as well as protein levels of t-Bid, Bak, Bad, Bax, cytochrome c, activated caspase-9 and activated caspase-3 (mitochondria-dependent apoptosis) increased in the SHR-Sham group and increased further in the SHR-OVX group...
December 6, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27929147/simultaneous-detection-of-multiple-targets-involved-in-the-pi3k-akt-pathway-for-investigating-cellular-migration-and-invasion-with-a-multicolor-fluorescent-nanoprobe
#17
Mingming Luan, Na Li, Wei Pan, Limin Yang, Zhengze Yu, Bo Tang
We develop a multicolor fluorescent nanoprobe for assessing cellular migration and invasion by simultaneously imaging miRNA-221, PTEN mRNA and MMP-9 involved in the PI3K/AKT pathway which can regulate cellular mobility and invasiveness.
December 8, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27929118/exosomal-microrna-mir-1246-induces-cell-motility-and-invasion-through-the-regulation-of-dennd2d-in-oral-squamous-cell-carcinoma
#18
Sujata Sakha, Tomoki Muramatsu, Koji Ueda, Johji Inazawa
Metastasis is associated with poor prognosis in cancers. Exosomes, which are packed with RNA and proteins and are released in all biological fluids, are emerging as an important mediator of intercellular communication. However, the function of exosomes remains poorly understood in cancer metastasis. Here, we demonstrate that exosomes isolated by size-exclusion chromatography from a highly metastatic human oral cancer cell line, HOC313-LM, induced cell growth through the activation of ERK and AKT as well as promoted cell motility of the poorly metastatic cancer cell line HOC313-P...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27928899/alleviating-vldl-overproduction-is-an-important-mechanism-for-laminaria-japonica-polysaccharide-to-inhibit-atherosclerosis-in-ldlr-mice-with-diet-induced-insulin-resistance
#19
Xue-Qiang Zha, Wei-Nan Zhang, Fu-Hua Peng, Lei Xue, Jian Liu, Jian-Ping Luo
SCOPE: The overproduction of very low density lipoprotein (VLDL) is an important cause for initiation and development of atherosclerosis, which is highly associated with insulin signaling. The aim of this work is to verify whether the inhibition of VLDL overproduction is an underlying mechanism for a Laminaria japonica polysaccharide (LJP61A) to resist atherosclerosis. METHODS AND RESULTS: LJP61A (50 and 200 mg/Kg/day) was orally administered to a high fat diet (HFD)-fed LDLr(-/-) mice for 14 weeks...
December 8, 2016: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/27928692/palmitic-acid-triggers-cell-apoptosis-in-rgc-5-retinal-ganglion-cells-through-the-akt-foxo1-signaling-pathway
#20
Panshi Yan, Shu Tang, Haifeng Zhang, Yuanyuan Guo, Zhiwen Zeng, Qiang Wen
Hallmarks of the pathophysiology of glaucoma are oxidative stress and apoptotic death of retinal ganglion cells (RGCs). Lipotoxicity, involving a series of pathological cellular responses after exposure to elevated levels of fatty acids, leads to oxidative stress and cell death in various cell types. The phosphatidylinositol-3-kinase/protein kinase B/Forkhead box O1 (PI3K/Akt/FoxO1) pathway is crucial for cell survival and apoptosis. More importantly, FoxO1 gene has been reported to confer relatively higher risks for eye diseases including glaucoma...
December 7, 2016: Metabolic Brain Disease
keyword
keyword
3218
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"