keyword
MENU ▼
Read by QxMD icon Read
search

Pi3k

keyword
https://www.readbyqxmd.com/read/29353218/sulforaphane-prevents-angiotensin-ii-induced-cardiomyopathy-by-activation-of-nrf2-via-stimulating-the-akt-gsk-3%C3%A3-fyn-pathway
#1
Ying Xin, Yang Bai, Xin Jiang, Shanshan Zhou, Yuehui Wang, Kupper A Wintergerst, Taixing Cui, Honglei Ji, Yi Tan, Lu Cai
AIMS: Activation of nuclear factor erythroid 2-related factor 2 (Nrf2) by sulforaphane (SFN) protects from, and deletion of the Nrf2 gene exaggerates, diabetic cardiomyopathy. Angiotensin II (Ang II) plays a critical role in the development of diabetic cardiomyopathy. Therefore, whether SFN prevents Ang II-induced cardiomyopathy through activation of Nrf2 was examined using wild-type, global deletion of Nrf2 gene (Nrf2-KO) and cardiomyocyte-specific overexpression of Nrf2 gene (Nrf2-TG) mice...
January 2, 2018: Redox Biology
https://www.readbyqxmd.com/read/29352975/pinocembrin-from-penthorum-chinense-pursh-suppresses-hepatic-stellate-cells-activation-through-a-unified-sirt3-tgf-%C3%AE-smad-signaling-pathway
#2
Fayang Zhou, Anqi Wang, Dan Li, Yitao Wang, Ligen Lin
The inactivation of hepatic stellate cells (HSCs) has been verified to be an effective therapeutic strategy for treatment of liver fibrosis. Penthorum chinense Pursh has been widely used to protect liver in China; while, the role of P. chinense Pursh in treatment of liver fibrosis is still unexplored. In the current study, the aqueous extract of P. chinense Pursh (PCE) was found to suppress the expressions of fibrotic markers, including collagen I and α-smooth muscle actin (α-SMA), in human HSCs (LX-2); and its major active constituent, pinocembrin (PIN), was discovered to inhibit the expressions of fibrotic markers in LX-2 cells and rat HSCs (HSC-T6)...
January 15, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29352743/co-transplantation-of-adipose-tissue-derived-stromal-cells-and-olfactory-ensheathing-cells-for-spinal-cord-injury-repair
#3
Eduardo D Gomes, Sofia S Mendes, Rita C Assunção-Silva, Fábio G Teixeira, Ana O Pires, Sandra I Anjo, Bruno Manadas, Hugo Leite-Almeida, Jeffrey M Gimble, Nuno Sousa, Angelo C Lepore, Nuno A Silva, António J Salgado
Patients suffering from Spinal Cord Injury (SCI) still have a dismal prognosis. Despite all the efforts developed in this area, currently there are no effective treatments. Therefore, cell therapies have been proposed as a viable alternative to the current treatments employed. Adipose tissue-derived Stem Cells (ASCs) and Olfactory Ensheathing Cells (OECs) have been used with promising results in different models of SCI, namely due to the regenerative properties of the secretome of the first, and the guidance capability of the second...
January 20, 2018: Stem Cells
https://www.readbyqxmd.com/read/29352319/activation-of-pi3k-akt-and-erk-during-early-rotavirus-infection-leads-to-v-atpase-dependent-endosomal-acidification-required-for-uncoating
#4
Mahmoud Soliman, Ja-Young Seo, Deok-Song Kim, Ji-Yun Kim, Jun-Gyu Park, Mia Madel Alfajaro, Yeong-Bin Baek, Eun-Hyo Cho, Joseph Kwon, Jong-Soon Choi, Mun-Il Kang, Sang-Ik Park, Kyoung-Oh Cho
The cellular PI3K/Akt and/or MEK/ERK signaling pathways mediate the entry process or endosomal acidification during infection of many viruses. However, their roles in the early infection events of group A rotaviruses (RVAs) have remained elusive. Here, we show that late-penetration (L-P) human DS-1 and bovine NCDV RVA strains stimulate these signaling pathways very early in the infection. Inhibition of both signaling pathways significantly reduced production of viral progeny due to blockage of virus particles in the late endosome, indicating that neither of the two signaling pathways is involved in virus trafficking...
January 19, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29352118/pi3k-mtor-inhibition-promotes-the-regression-of-experimental-vascular-malformations-driven-by-pik3ca-activating-mutations
#5
Laura di Blasio, Alberto Puliafito, Paolo Armando Gagliardi, Valentina Comunanza, Desiana Somale, Giulia Chiaverina, Federico Bussolino, Luca Primo
Somatic activating mutations within the PIK3CA gene have been recently detected in sporadic lymphatic and venous malformations, and in vascular malformations (VM) associated to overgrowth syndromes, such as CLOVES and Klippel-Trenaunay syndrome. Although VM are often limited to specific tissue areas and can be well treated, in extended or recurrent lesions novel therapeutic approaches are needed. We generated a mouse model of VM by local expression of PIK3CA-activating mutation in endothelial cells. PIK3CA-driven lesions are characterized by large areas of hemorrhage, hyperplastic vessels, infiltrates of inflammatory cells, and elevated endothelial cell density...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352113/polo-like-kinase-4-mediates-epithelial-mesenchymal-transition-in-neuroblastoma-via-pi3k-akt-signaling-pathway
#6
Xiangdong Tian, Dejun Zhou, Lu Chen, Yao Tian, Benfu Zhong, Yanna Cao, Qiuping Dong, Meng Zhou, Jie Yan, Yalei Wang, Yanli Qiu, Lianmin Zhang, Zhongyuan Li, Huijuan Wang, Daowei Wang, Guoguang Ying, Qiang Zhao
Neuroblastoma (NB) is the most common malignant tumor in infancy and most common extracranial solid tumor in childhood. With the improvement of diagnosis and treatment, the survival rate of patients with low-risk and intermediate-risk NB can reach up to 90%. In contrast, for high-risk NBs, the long-term survival rate is still <40% because of heterogeneity of this tumor. The pathogenesis of NB is still not explicit, therefore it is of great significance to explore the mechanism of NB tumorigenesis and discover new therapeutic targets for NB...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352052/estrogen-receptor-positive-breast-cancer-exploiting-signaling-pathways-implicated-in-endocrine-resistance
#7
REVIEW
Adam M Brufsky, Maura N Dickler
Advancements in molecular profiling and endocrine therapy (ET) have led to more focused clinical attention on precision medicine. These advances have expanded our understanding of breast cancer (BC) pathogenesis and hold promising implications for the future of therapy. The estrogen receptor-α is a predominant endocrine regulatory protein in the breast and in estrogen-induced BC. Successful targeting of proteins and genes within estrogen receptor (ER) nuclear and nonnuclear pathways remains a clinical goal...
January 19, 2018: Oncologist
https://www.readbyqxmd.com/read/29351580/maternal-nutrient-restriction-impairs-young-adult-offspring-ovarian-signaling-resulting-in-reproductive-dysfunction-and-follicle-loss
#8
K A Chan, P A Jazwiec, W Gohir, J J Petrik, D M Sloboda
Reproductive abnormalities are included as health complications in offspring exposed to poor prenatal nutrition. We have previously shown in a rodent model, that offspring born to nutrient restriction during pregnancy are born small, enter puberty early, and display characteristics of early ovarian aging as adults. The present study investigated whether key proteins involved in follicle recruitment and growth mediate ovarian follicle loss. Pregnant rats were randomized to: a standard diet throughout pregnancy and lactation (CON), or a calorie-restricted (50% of control) diet (UN) during pregnancy...
January 17, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29350678/pik3r3-regulates-ppar%C3%AE-expression-to-stimulate-fatty-acid-%C3%AE-oxidation-and-decrease-hepatosteatosis
#9
Xi Yang, Yinjia Fu, Fuqing Hu, Xuelai Luo, Junbo Hu, Guihua Wang
Phosphatidylinositol 3-kinase (PI3K) signaling plays an important role in the regulation of cellular lipid metabolism and non-alcoholic fatty liver disease (NAFLD). However, little is known about the role of the regulatory subunits of PI3K in lipid metabolism and NAFLD. In this study, we characterized the functional role of PIK3R3 in fasting-induced hepatic lipid metabolism. In this study, we showed that the overexpression of PIK3R3 promoted hepatic fatty acid oxidation via PIK3R3-induced expression of PPARα, thus improving the fatty liver phenotype in high-fat diet (HFD)-induced mice...
January 19, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29350613/fgf-mediated-mapk-and-pi3k-akt-signals-make-distinct-contributions-to-pluripotency-and-the-establishment-of-neural-crest
#10
Lauren Geary, Carole LaBonne
Early vertebrate embryos possess cells with the potential to generate all embryonic cell types. While this pluripotency is progressively lost as cells become lineage restricted, Neural Crest cells retain broad developmental potential. Here, we provide novel insights into signals essential for both pluripotency and neural crest formation in Xenopus. We show that FGF signaling controls a subset of genes expressed by pluripotent blastula cells, and find a striking switch in the signaling cascades activated by FGF signaling as cells lose pluripotency and commence lineage restriction...
January 19, 2018: ELife
https://www.readbyqxmd.com/read/29350244/autophagy-related-atg-11-atg9-and-the-phosphatidylinositol-3-kinase-control-atg2-mediated-formation-of-autophagosomes-in-arabidopsis
#11
Sangwoo Kang, Kwang Deok Shin, Jeong Hun Kim, Taijoon Chung
Using quantitative assays for autophagy, we analyzed 4 classes of atg mutants, discovered new atg2 phenotypes and ATG gene interactions, and proposed a model of autophagosome formation in plants. Plant and other eukaryotic cells use autophagy to target cytoplasmic constituents for degradation in the vacuole. Autophagy is regulated and executed by a conserved set of proteins called autophagy-related (ATG). In Arabidopsis, several groups of ATG proteins have been characterized using genetic approaches. However, the genetic interactions between ATG genes have not been established and the relationship between different ATG groups in plants remains unclear...
January 19, 2018: Plant Cell Reports
https://www.readbyqxmd.com/read/29350101/biomimetic-composite-scaffold-sis-mbg-exhibits-high-osteogenic-and-angiogenic-capacity
#12
Tingfang Sun, Man Liu, Sheng Yao, Yanhui Ji, Zekang Xiong, Kai Tang, Kaifang Chen, Hu Yang, Xiao-Dong Guo
Biomaterials with excellent osteogenic and angiogenic activities are desirable to repair massive bone defects. Decellularized matrix from porcine small intestinal submucosa (SIS) has attracted particular attention for tissue regeneration because it has strong angiogenic effects and retains plentiful bioactive components. However, it has inferior osteoinductivity and osteoconductivity. In this study, we developed porous composite of SIS combined with mesoporous bioactive glass (SIS/MBG) with the goal of improving the mechanical and biological properties...
January 19, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29349683/plantamajoside-inhibits-lipopolysaccharide-induced-muc5ac-expression-and-inflammation-through-suppressing-the-pi3k-akt-and-nf-%C3%AE%C2%BAb-signaling-pathways-in-human-airway-epithelial-cells
#13
Chaonan Ma, Wei Ma
It has been reported that plantamajoside (PMS), a major natural compound isolated from Plantago asiatica, has anti-inflammatory activities. However, the effect of PMS on respiratory inflammatory diseases has not yet been studied. The present study aimed to evaluate the effect of PMS on lipopolysaccharide (LPS)-induced airway inflammation and the underlying mechanism. The results showed that PMS did not affect the cell viability of 16-HBE cells. PMS (20 and 40 μg/ml) decreased the expression levels of MUC5AC, IL-6, and IL-1β, which were induced by LPS treatment...
January 18, 2018: Inflammation
https://www.readbyqxmd.com/read/29349661/pkm2-is-involved-in-neuropathic-pain-by-regulating-erk-and-stat3-activation-in-rat-spinal-cord
#14
Binbin Wang, Siyuan Liu, Bingbing Fan, Xingguo Xu, Yonglin Chen, Rongxiang Lu, Zhongling Xu, Xiaojuan Liu
BACKGROUND: Pyruvate kinase isozymes M2 (PKM2), as a member of pyruvate kinase family, plays a role of glycolytic enzyme in glucose metabolism. It also functions as protein kinase in cell proliferation, signaling, immunity, and gene transcription. In this study, the role of PKM2 in neuropathic pain induced by chronic constriction injury (CCI) was investigated. METHODS: Rats were randomly grouped to establish CCI models. PKM2, extracellular regulated protein kinases (EKR), p-ERK, signal transducers and activators of transcription (STAT3), p-STAT3, phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) and p-PI3K/AKT proteins expression in spinal cord was examined by Western blot analysis...
January 18, 2018: Journal of Headache and Pain
https://www.readbyqxmd.com/read/29349567/hbeag-induces-the-expression-of-macrophage-mir-155-to-accelerate-liver-injury-via-promoting-production-of-inflammatory-cytokines
#15
Wenwen Wang, Hongjun Bian, Feifei Li, Xiao Li, Di Zhang, Shuohuan Sun, Shouyang Song, Qiang Zhu, Wanhua Ren, Chengyong Qin, Jianni Qi
Activation of Kupffer cells (KCs) induced that inflammatory cytokine production plays a central role in the pathogenesis of HBV infection. The previous studies from our and other laboratory demonstrated miRNAs can regulate TLR-inducing inflammatory responses to macrophage. However, the involvement of miRNAs in HBV-associated antigen-induced macrophage activation is still not thoroughly understood. Here, we evaluated the effects and mechanisms of miR-155 in HBV-associated antigen-induced macrophage activation...
January 18, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29349457/effects-of-tetrahedral-dna-nanostructures-on-autophagy-in-chondrocytes
#16
Sirong Shi, Shiyu Lin, Yong Li, Tao Zhang, Xiaoru Shao, Taoran Tian, Tengfei Zhou, Qianshun Li, Yunfeng Lin
Tetrahedral DNA nanostructures (TDNs) have gathered great attention and are being widely used in biomedicine. We demonstrated that autophagy increased after exposure to TDNs (250 nM) along with the up-regulation of several autophagy-related genes and proteins. TDNs enhanced cell autophagy through the PI3K/AKT/mTOR signaling pathway.
January 19, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29348878/identification-of-cancer-prognosis-associated-functional-modules-using-differential-co-expression-networks
#17
Wenshuai Yu, Shengjie Zhao, Yongcui Wang, Brian Nlong Zhao, Weiling Zhao, Xiaobo Zhou
The rapid accumulation of cancer-related data owing to high-throughput technologies has provided unprecedented choices to understand the progression of cancer and discover functional networks in multiple cancers. Establishment of co-expression networks will help us to discover the systemic properties of carcinogenesis features and regulatory mechanisms of multiple cancers. Here, we proposed a computational workflow to identify differentially co-expressed gene modules across 8 cancer types by using combined gene differential expression analysis methods and a higher-order generalized singular value decomposition...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348875/radiosensitization-of-the-pi3k-inhibitor-hs-173-through-reduction-of-dna-damage-repair-in-pancreatic-cancer
#18
Jung Hee Park, Kyung Hee Jung, Soo Jung Kim, Zhenghuan Fang, Hong Hua Yan, Mi Kwon Son, Juyoung Kim, Yeo Wool Kang, Ji Eun Lee, Boreum Han, Joo Han Lim, Soon-Sun Hong
Activation of PI3K/AKT pathway occurs frequently in tumors and is correlated with radioresistance. The PI3K/AKT pathway can be an important target for improvement of radiotherapy. Although adding of chemotherapy to radiation therapy regimen enhances survival in patients with locally advanced pancreatic cancer, more effective therapies for increasing radiosensitivity are urgently needed. In this study, we investigated whether the novel PI3K inhibitor HS-173 could attenuate radiation-induced up-regulation of DNA damage repair processes and assessed its efficacy as a radio- and chemo-sensitizer...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348577/targeting-b-cell-receptor-signalling-in-cancer-preclinical-and-clinical-advances
#19
REVIEW
Jan A Burger, Adrian Wiestner
B cell receptor (BCR) signalling is crucial for normal B cell development and adaptive immunity. BCR signalling also supports the survival and growth of malignant B cells in patients with B cell leukaemias or lymphomas. The mechanism of BCR pathway activation in these diseases includes continuous BCR stimulation by microbial antigens or autoantigens present in the tissue microenvironment, activating mutations within the BCR complex or downstream signalling components and ligand-independent tonic BCR signalling...
January 19, 2018: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/29348540/human-colorectal-cancer-derived-mesenchymal-stem-cells-promote-colorectal-cancer-progression-through-il-6-jak2-stat3-signaling
#20
Xiaochao Zhang, Fayong Hu, Geng Li, Guodong Li, Xi Yang, Liang Liu, Rongsheng Zhang, Bixiang Zhang, Yongdong Feng
Mesenchymal stem cells (MSCs) have been reported to localize in colorectal carcinomas, and participate in the formation of the tumor microenvironment. They have recently been isolated from colorectal cancer tissues, and are implicated in the growth, invasion, and metastasis of cancer cells. However, the roles and detailed mechanisms associated with human colorectal cancer-derived MSCs (CC-MSCs) have not been fully addressed. In this study, we found that CC-MSCs increased the migration and invasion of colorectal cancer cells and promoted the tumorigenesis of colorectal cancer through epithelial-to-mesenchymal transition (EMT) in vitro...
January 18, 2018: Cell Death & Disease
keyword
keyword
3221
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"