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https://www.readbyqxmd.com/read/29745506/-role-and-mechanism-of-camp-ca-2-signal-pathway-in-differentiation-of-bone-marrow-mesenchymal-stem-cells-into-neuronal-cells-induced-by-salidroside
#1
Ling Zhao, Hongbin Zhao, Wen Qin, Gen Li, Junjie Tang, Jiuna Wang
To investigate the mechanism of cAMP/Ca 2+ signaling pathway inducing bone marrow mesenchymal stem cells to differentiate into neuronal cells, we cultured the bone marrow mesenchymal stem cells D1 cells in the present study. D1 cells were divided into two groups: control group and salidroside inducing groups. Control group was cultured with complete culture solution D/F12, while salidroside inducing groups were induced with 100 mg·L -1 salidroside for different time periods (24, 48 and 72 hours). PCR-array assay was used to detect expression of 84 calcium related mRNA, and significantly different genes were chosen to analyse...
June 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29716941/increased-rtn3-leads-to-obesity-and-hypertriglyceridemia-by-interacting-with-hspa5
#2
Rong Xiang, Liang-Liang Fan, Hao Huang, Ya-Qin Chen, Wanxia He, Shuai Guo, Jing-Jing Li, Jie-Yuan Jin, Ran Du, Riqiang Yan, Kun Xia
Background -Reticulon 3 (RTN3) is an endoplasmic reticulum protein that has been previously shown to play a role in neurodegenerative diseases, but little is known about its role in lipid metabolism. Methods -Obesity patients (149), hypertriglyceridemia patients (343), and healthy controls (84) were enrolled to assess their levels of RTN3. To explore pathophysiological roles of RTN3 in the control of lipid metabolism, we utilized Tg-RTN3 and RTN3-null transgenic mouse models and multiple C. elegans strains for molecular characterization...
May 1, 2018: Circulation
https://www.readbyqxmd.com/read/29678641/liver-directed-microrna-7a-depletion-induces-nonalcoholic-fatty-liver-disease-by-stabilizing-yy1-mediated-lipogenic-pathways-in-zebrafish
#3
Chi-Yu Lai, Chiu-Ya Lin, Chia-Chun Hsu, Kun-Yun Yeh, Guor Mour Her
Nonalcoholic fatty liver disease (NAFLD) has been associated with the function and changes in expression levels of microRNAs (miRs). MiR-7 has been proven to play an important role in many cellular processes; however, its functions in the context of liver lipogenesis remain unknown. We applied the microRNA-sponge (miR-SP) technology and generated transgenic miR-7a-SP models (hC7aSP and bC7aSP), which disrupted the activities of hepatic miR-7a and induced the early onset of NAFLD and nonalcoholic steatohepatitis (NASH) in zebrafish...
August 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29643704/bioinformatic-analysis-of-the-possible-regulative-network-of-mir-30a-e-in-cardiomyocytes-2-days-post-myocardial-infarction
#4
Yiping Wang, Yingqiong Huang, Min Zhang, Xiaoqin Zhang, Xuemei Tang, Yan Kang
Background: Both miR-30a and miR-30e are significantly downregulated in cardiomyocytes (CMs) 2 days (d) post myocardial infarction (MI). This study aimed to identify their possible regulative network in CMs 2d post-MI. Methods: The dysregulated mRNAs in left ventricle tissues 2d post-MI in mice model were retrieved from one previous publication. The verified target genes of miR-30a/e and the predicted targets (upregulated 2d post-MI) were subjected to analysis of the involvement in biological processes according to their enrichment in gene ontology (GO) terms...
March 2018: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/29563563/the-transcriptional-profiles-and-functional-implications-of-long-non-coding-rnas-in-the-unfolded-protein-response
#5
Hongyang Quan, Qianqian Fan, Chuang Li, Yan-Ying Wang, Lin Wang
The unfolded protein response (UPR) is activated, when the folding capacity is compromised in the endoplasmic reticulum (ER). To date, most studies focused on the coding genes and microRNAs in UPR. Other non-coding RNAs affected by UPR and their roles in UPR have not been systematically studied. Long noncoding RNAs (lncRNAs) are increasingly recognized as powerful epigenetic regulators. In this study, we transcriptomically profiled the lncRNAs and mRNAs from mouse embryonic fibroblasts under ER stress, and identified many differentially expressed lncRNAs and mRNAs...
March 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29553885/acute-heat-stress-changes-protein-expression-in-the-testes-of-a-broiler-type-strain-of-taiwan-country-chickens
#6
Shih-Han Wang, Chuen-Yu Cheng, Chao-Jung Chen, Hong-Lin Chan, Hsin-Hsin Chen, Pin-Chi Tang, Chih-Feng Chen, Yen-Pai Lee, San-Yuan Huang
Heat stress leads to decreased fertility in roosters. This study investigated the global protein expression in response to acute heat stress in the testes of a broiler-type strain of Taiwan country chickens (TCCs). Twelve 45-week-old roosters were randomly allocated to the control group maintained at 25°C, and three groups subjected to acute heat stress at 38°C for 4 h, with 0, 2, and 6 h of recovery, respectively. Testis samples were collected for hematoxylin and eosin staining, apoptosis assay, and protein analysis...
March 19, 2018: Animal Biotechnology
https://www.readbyqxmd.com/read/29507682/multi-chaperone-function-modulation-and-association-with-cytoskeletal-proteins-are-key-features-of-the-function-of-aip-in-the-pituitary-gland
#7
Laura C Hernández-Ramírez, Rhodri M L Morgan, Sayka Barry, Fulvio D'Acquisto, Chrisostomos Prodromou, Márta Korbonits
Despite the well-recognized role of loss-of-function mutations of the aryl hydrocarbon receptor interacting protein gene ( AIP ) predisposing to pituitary adenomas, the pituitary-specific function of this tumor suppressor remains an enigma. To determine the repertoire of interacting partners for the AIP protein in somatotroph cells, wild-type and variant AIP proteins were used for pull-down/quantitative mass spectrometry experiments against lysates of rat somatotropinoma-derived cells; relevant findings were validated by co-immunoprecipitation and co-localization...
February 6, 2018: Oncotarget
https://www.readbyqxmd.com/read/29465313/cd5l-is-upregulated-in-hepatocellular-carcinoma-and-promotes-liver-cancer-cell-proliferation-and-antiapoptotic-responses-by-binding-to-hspa5-grp78
#8
Gemma Aran, Lucía Sanjurjo, Cristina Bárcena, Marina Simon-Coma, Érica Téllez, Maria Vázquez-Vitali, Marta Garrido, Laura Guerra, Esther Díaz, Isabel Ojanguren, Felix Elortza, Ramon Planas, Margarita Sala, Carolina Armengol, Maria-Rosa Sarrias
CD5-like (CD5L) is a soluble scavenger cysteine-rich protein that modulates inflammatory responses. We studied the involvement of CD5L in liver cancer. Immunohistochemistry (IHC) of CD5L in 60 hepatocellular carcinomas and 34 adjacent nontumor livers, showed that CD5L staining was higher in tumor than in nontumor tissue (Mann-Whitney test; P = 0.0039). High CD5L correlated with elevated proliferation (Ki67, linear regression; P < 0.0001) and lower patient event-free survival (log-rank; P = 0.0185). Accordingly, CD5L expression was detected in the liver cancer cell lines Huh7, HepG2, and SNU-398...
February 20, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29453283/chemical-stresses-fail-to-mimic-the-unfolded-protein-response-resulting-from-luminal-load-with-unfolded-polypeptides
#9
Timothy J Bergmann, Ilaria Fregno, Fiorenza Fumagalli, Andrea Rinaldi, Francesco Bertoni, Paul J Boersema, Paola Picotti, Maurizio Molinari
The stress sensors ATF6, IRE1, and PERK monitor deviations from homeostatic conditions in the endoplasmic reticulum (ER), a protein biogenesis compartment of eukaryotic cells. Their activation elicits unfolded protein responses (UPR) to re-establish proteostasis. UPR have been extensively investigated in cells exposed to chemicals that activate ER stress sensors by perturbing calcium, N -glycans, or redox homeostasis. Cell responses to variations in luminal load with unfolded proteins are, in contrast, poorly characterized...
April 13, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29408669/effect-of-diesel-exhaust-generated-by-a-city-bus-engine-on-stress-responses-and-innate-immunity-in-primary-bronchial-epithelial-cell-cultures
#10
M C Zarcone, E Duistermaat, M J Alblas, A van Schadewijk, D K Ninaber, V Clarijs, M M Moerman, D Vaessen, P S Hiemstra, I M Kooter
Harmful effects of diesel emissions can be investigated via exposures of human epithelial cells, but most of previous studies have largely focused on the use of diesel particles or emission sources that are poorly representative of engines used in current traffic. We studied the cellular response of primary bronchial epithelial cells (PBECs) at the air-liquid interface (ALI) to the exposure to whole diesel exhaust (DE) generated by a Euro V bus engine, followed by treatment with UV-inactivated non-typeable Haemophilus influenzae (NTHi) bacteria to mimic microbial exposure...
April 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29407824/developmental-toxicity-induced-by-pm2-5-through-endoplasmic-reticulum-stress-and-autophagy-pathway-in-zebrafish-embryos
#11
Yun Zhang, Saiyu Li, Juanjuan Li, Liwen Han, Qiuxia He, Rongchun Wang, Ximin Wang, Kechun Liu
The aims of this study were to investigate the mechanism underlying the developmental toxicity of fine particulate matter (PM2.5 ) and provide a more thorough understanding of the toxicity of PM2.5 in an ecological environment. Zebrafish embryos at 4 h post-fertilization were exposed to PM2.5 at doses of 200, 300, 400, 500, 600 and 800 μg/mL for 120 h. The mortality, hatching rate, morphology score, body length, locomotor capacity, histological changes, antioxidant defense system, leukocyte migration, inflammation-related gene mRNA expression, endoplasmic reticulum stress (ERS) and autophagy were evaluated to study PM2...
April 2018: Chemosphere
https://www.readbyqxmd.com/read/29386544/identification-of-molecular-pathways-and-candidate-genes-associated-with-cocks-comb-size-trait-by-genome-wide-transcriptome-analysis
#12
Yifan Liu, Yunjie Tu, Ming Zhang, Gaige Ji, Kun Wang, Yanju Shan, Xiaojun Ju, Di Zhang, Jingting Shu, Jianmin Zou
The comb of the male is an important secondary sexual characteristic. Although quantitative trait loci (QTLs) related to comb size have been identified, molecular mechanisms underlying this trait remain mostly unknown. In this study, RNA sequencing (RNA-seq) was employed to compare whole transcriptomic differences between two groups of Partridge Shank chickens that are divergent in comb sizes. A total of 563 differentially expressed genes (DEGs) were identified, including 277 up-regulated and 286 down-regulated DEGs...
January 31, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29328656/design-and-synthesis-of-novel-reactive-oxygen-species-inducers-for-the-treatment-of-pancreatic-ductal-adenocarcinoma
#13
Yuting Kuang, Mario Sechi, Salvatore Nurra, Mats Ljungman, Nouri Neamati
Altering redox homeostasis provides distinctive therapeutic opportunities for the treatment of pancreatic cancer. Quinazolinediones (QDs) are novel redox modulators that we previously showed to induce potent growth inhibition in pancreatic ductal adenocarcinoma (PDAC) cell lines. Our lead optimization campaign yielded QD325 as the most potent redox modulator candidate inducing substantial reactive oxygen species (ROS) in PDAC cells. Nascent RNA sequencing following treatments with the QD compounds revealed induction of stress responses in nucleus, endoplasmic reticulum, and mitochondria of pancreatic cancer cells...
February 22, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29261001/regulation-of-autophagic-proteolysis-by-the-n-recognin-sqstm1-p62-of-the-n-end-rule-pathway
#14
Hyunjoo Cha-Molstad, Su Hyun Lee, Jung Gi Kim, Ki Woon Sung, Joonsung Hwang, Sang Mi Shim, Srinivasrao Ganipisetti, Terry McGuire, Inhee Mook-Jung, Aaron Ciechanover, Xiang-Qun Xie, Bo Yeon Kim, Yong Tae Kwon
In macroautophagy/autophagy, cargoes are collected by specific receptors, such as SQSTM1/p62 (sequestosome 1), and delivered to phagophores for lysosomal degradation. To date, little is known about how cells modulate SQSTM1 activity and autophagosome biogenesis in response to accumulating cargoes. In this study, we show that SQSTM1 is an N-recognin whose ZZ domain binds N-terminal arginine (Nt-Arg) and other N-degrons (Nt-Lys, Nt-His, Nt-Trp, Nt-Phe, and Nt-Tyr) of the N-end rule pathway. The substrates of SQSTM1 include the endoplasmic reticulum (ER)-residing chaperone HSPA5/GRP78/BiP...
2018: Autophagy
https://www.readbyqxmd.com/read/29260979/hspa5-negatively-regulates-lysosomal-activity-through-ubiquitination-of-mul1-in-head-and-neck-cancer
#15
Sun-Yong Kim, Hyo Jeong Kim, Haeng-Jun Kim, Dae Ho Kim, Jae Ho Han, Hyung Kwon Byeon, Keunho Lee, Chul-Ho Kim
HSPA5/GRP78/BiP plays an important role in cell survival or tumor progression. For these reasons, HSPA5 is an emerging therapeutic target in cancer development. Here we report that HSPA5 contributes to head and neck cancer (HNC) survival via maintenance of lysosomal activity; however, a nonthermal plasma (NTP, considered as a next-generation cancer therapy)-treated solution (NTS) inhibits HNC progression through HSPA5-dependent alteration of lysosomal activity. HSPA5 prevents NTS-induced lysosome inhibition through lysosomal-related proteins or regulation of gene expression...
2018: Autophagy
https://www.readbyqxmd.com/read/29221916/dna-methylation-signatures-at-endoplasmic-reticulum-stress-genes-are-associated-with-adiposity-and-insulin-resistance
#16
Omar Ramos-Lopez, Jose I Riezu-Boj, Fermin I Milagro, J Alfredo Martinez
A sustained activation of the unfolded protein response and the subsequent endoplasmic reticulum (ER) stress has been involved in the onset and severity of several metabolic diseases. The aim of this study was to analyze the association of DNA methylation signatures at ER stress genes with adiposity traits and related metabolic disorders. An epigenomic analysis within the Methyl Epigenome Network Association (MENA) project was conducted in an adult population (n=474). DNA methylation status in peripheral white blood cells was analyzed by a microarray approach...
January 2018: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29198452/betaglycan-tgfbr3-up-regulation-correlates-with-increased-tgf-%C3%AE-signaling-in-marfan-patient-fibroblasts-in-vitro
#17
Menno Evert Groeneveld, Natalija Bogunovic, René John Philip Musters, Geert Jan Tangelder, Gerard Pals, Willem Wisselink, Dimitra Micha, Kak Khee Yeung
BACKGROUND: Marfan syndrome (MFS), a congenital connective tissue disorder leading to aortic aneurysm development, is caused by fibrillin-1 (FBN1) gene mutations. Transforming growth factor beta (TGF-β) might play a role in the pathogenesis. It is still a matter of discussion if and how TGF-β up-regulates the intracellular downstream pathway, although TGF-β receptor 3 (TGFBR3 or Betaglycan) is thought to be involved. We aimed to elucidate the role of TGFBR3 protein in TGF-β signaling in Marfan patients...
January 2018: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/29187900/the-cytotoxic-effects-of-dimethyl-sulfoxide-in-mouse-preimplantation-embryos-a-mechanistic-study
#18
Min-Hee Kang, Joydeep Das, Sangiliyandi Gurunathan, Hwan-Woo Park, Hyuk Song, Chankyu Park, Jin-Hoi Kim
Rationale : Dimethyl sulfoxide (DMSO) is commonly used as a solvent for water-insoluble substances, a vehicle for drug therapy, and a cryoprotectant for cultured cells. DMSO induced embryonic defects and its mechanism of action remains unclear. The rationale is based on the assumption that DMSO supplementation should induce long-term negative effects on both pre- and post-implantation embryo development. Methods: DMSO induced oxidative stress, ER stress, autophagy, mitophagy, signaling responsible genes and proteins were determined by RT-qPCR, Western blotting, immunofluorescence, and confocal microscopy...
2017: Theranostics
https://www.readbyqxmd.com/read/29163679/identification-of-molecular-mechanisms-of-glutamine-in-pancreatic-cancer
#19
Zhen-Yi Jia, Tong-Yi Shen, Wei Jiang, Huan-Long Qin
The aim of the present study was to explore the critical genes and molecular mechanisms in pancreatic cancer (PC) cells with glutamine. By analyzing microarray data GSE17632 from the Gene Expression Omnibus database, the DEGs between PC cells treated with glutamine and without glutamine were evaluated. Additionally, function enrichment analyses and protein-protein interaction (PPI) network construction of DEGs were performed. Network module and literature mining analyses were performed to analyze the critical DEGs in PC cells...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29142990/the-chemical-chaperone-pba-reduces-er-stress-and-autophagy-and-increases-collagen-iv-%C3%AE-5-expression-in-cultured-fibroblasts-from-men-with-x-linked-alport-syndrome-and-missense-mutations
#20
Dongmao Wang, Mardhiah Mohammad, Yanyan Wang, Rachel Tan, Lydia S Murray, Sharon Ricardo, Hayat Dagher, Tom van Agtmael, Judy Savige
Introduction: X-linked Alport syndrome (OMIM 301050) is caused by COL4A5 missense variants in 40% of families. This study examined the effects of chemical chaperone treatment (sodium 4-phenylbutyrate) on fibroblast cell lines derived from men with missense mutations. Methods: Dermal fibroblast cultures were established from 2 affected men and 3 normals. Proliferation rates were examined, the collagen IV α5 chain localized with immunostaining, and levels of the intra- and extracellular chains quantitated with an in-house enzyme-linked immunosorbent assay...
July 2017: KI Reports
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