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Cellular Physiology and Biochemistry

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https://www.readbyqxmd.com/read/28427077/mybl2-is-a-potential-prognostic-marker-that-promotes-cell-proliferation-in-gallbladder-cancer
#1
Hai-Bin Liang, Yang Cao, Qiang Ma, Yi-Jun Shu, Zheng Wang, Fei Zhang, Yuan-Yuan Ye, Huai-Feng Li, Shan-Shan Xiang, Xiao-Ling Song, Yi Xu, Yi-Chi Zhang, Run-Fa Bao, Rui-Yan Yuan, Yi-Jian Zhang, Yun-Ping Hu, Lin Jiang, Mao-Lan Li, Xu-An Wang, Xiang-Song Wu, Wen-Guang Wu, Shuai Zhao, Yong Fand, Xiao-Peng Cui, Yun-Shu Lu, Jian Zhou, Lei Zheng, Wei Gong, Ying-Bin Liu
BACKGROUND: Gallbladder cancer (GBC) is an aggressive and highly lethal biliary tract malignancy, with extremely poor prognosis. In the present study, we analyzed the potential involvement of MYBL2, a member of the Myb transcription factor family, in the carcinogenesis of human GBC. METHODS: MYBL2 expression levels were measured in GBC and cholecystitis tissue specimens using quantitative real-time PCR (qRT-PCR) and immunohistochemical (IHC) assays. The effects of MYBL2 on cell proliferation and DNA synthesis were evaluated using Cell Counting Kit-8 assay (CCK-8), colony formation, and 5-ethynyl-2'-deoxyuridine (EdU) retention assay, flow cytometry analysis, western blot, and a xenograft model of GBC cells in nude mice...
April 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28427048/1-25-dihydroxyvitamin-d3-attenuates-the-effects-of-lipopolysaccharide-by-causing-adam10-dependent-ectodomain-shedding-of-toll-like-receptor-4
#2
Won Seok Yang, Jin Ju Kim, Nam Jeong Han, Eun Kyoung Lee, Su-Kil Park
BACKGROUND/AIMS: We investigated how 1,25-dihydroxyvitamin D3 (1,25D3) inhibits the effects of lipopolysaccharide (LPS) in human aortic endothelial cells. METHODS: Cellular signaling was explored by determination of protein abundance with Western blot, measurement of cytosolic Ca2+ concentration and immunofluorescence staining for a disintegrin and metalloprotease 10 (ADAM10). RESULTS: LPS stimulated the expression of intercellular adhesion molecule 1 (ICAM-1) through toll-like receptor 4 (TLR4) and subsequent activation of p38 mitogen-activated protein kinase (p38 MAPK)...
April 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28419994/degradation-of-mcl-1-through-gsk-3%C3%AE-activation-regulates-apoptosis-induced-by-bufalin-in-non-small-cell-lung-cancer-h1975-cells
#3
Xiao-Hong Kang, Jing-Hang Zhang, Qing-Qin Zhang, Yan-Hui Cui, Ying Wang, Wei-Zheng Kou, Zhan-Hui Miao, Ping Lu, Li-Fang Wang, Zhen-Ye Xu, Fei Cao
BACKGROUND/AIMS: Mcl-1, an anti-apoptotic Bcl-2 family member, is often overexpressed in non-small cell lung cancer (NSCLC). Bufalin has been reported to induce apoptosis in various tumor cells. However, there is no report showing that bufalin could downregulate Mcl-1 expression in NSCLC. METHODS: Cell proliferation was analyzed by cell counting kit-8 (CCK-8) assay in H1975 cells. Cell apoptosis was detected by flow cytometry. Mcl-1 mRNA was detected by RT-PCR. The expression of apoptosis-associated proteins in H1975 cells was detected by western blotting...
April 14, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28419993/reduction-in-peripheral-cd19-cd24hcd27-b-cell-frequency-predicts-favourable-clinical-course-in-xelox-treated-patients-with-advanced-gastric-cancer
#4
Wei Li, Dongli Song, Hong Li, Li Liang, Naiqing Zhao, Tianshu Liu
BACKGROUND: Accumulating evidence suggests that regulatory B cells (Bregs) play an important role in modulating the immune response to tumours. Our previous study indicated that a small percentage of peripheral CD19+CD24hCD27+ Breg cells slowed gastric cancer progression in XELOX-treated patients. Here, we further investigated the relationship between dynamic changes in circulating Breg cells and the clinical course in XELOX-treated gastric cancer patients. METHODS: A total of 52 patients with advanced gastric cancer were enrolled in this study...
April 14, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28419985/erythropoietin-derived-peptide-protects-against-acute-lung-injury-after-rat-traumatic-brain-injury
#5
Yuan Liu, Junyu Lu, Xiaoya Wang, Liu Chen, Su Liu, Zhiren Zhang, Wei Yao
BACKGROUND: Traumatic brain injury (TBI) can be complicated by TBI-triggered acute lung injury (ALI), in which inflammation plays a central role. It has been reported that an Erythropoietin-derived peptide (pHBSP) was able to ameliorate TBI; however, its function in TBI-caused ALI has not been reported yet. METHODS: In this study, we studied the effect of pHBSP on TBI-caused ALI by using a weight-drop induced TBI model. At 8 h and 24 h post-TBI, pulmonary edema (PE) and bronchoalveolar lavage fluid (BALF) proteins were measured, and haematoxylin and eosin (H&E) staining of lung sections was carried out...
April 14, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28420001/nicotinamide-n-methyltransferase-suppression-participates-in-nickel-induced-histone-h3-lysine9-dimethylation-in-beas-2b-cells
#6
Qian Li, Min-Di He, Lin Mao, Xue Wang, Yu-Lin Jiang, Min Li, Yong-Hui Lu, Zheng-Ping Yu, Zhou Zhou
BACKGROUND: Nickel compounds are well-established human carcinogens with weak mutagenic activity. Histone methylation has been proposed to play an important role in nickel-induced carcinogenesis. Nicotinamide N-methyltransferase (NNMT) decreases histone methylation in several cancer cells by altering the cellular ratio of S-adenosylmethionine (SAM) to S-adenosylhomocysteine (SAH). However, the role of NNMT in nickel-induced histone methylation remains unclear. METHODS: BEAS-2B cells were exposed to different concentrations of nickel chloride (NiCl2) for 72 h or 200 μM NiCl2 for different time periods...
April 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28420000/-epicatechin-suppresses-angiotensin-ii-induced-cardiac-hypertrophy-via-the-activation-of-the-sp1-sirt1-signaling-pathway
#7
Zeng-Xiang Dong, Lin Wan, Ren-Jun Wang, Yuan-Qi Shi, Guang-Zhong Liu, Si-Jia Zheng, Hui-Ling Hou, Wei Han, Xin Hai
BACKGROUND/AIMS: Flavonol (-)-epicatechin (EPI) is present in high amounts in cocoa and tea products, and has been shown to exert beneficial effects on the cardiovascular system. However, the precise mechanism of EPI on cardiomyocyte hypertrophy has not yet been determined. In this study, we examined whether EPI could inhibit cardiac hypertrophy. METHODS: We utilised cultured neonatal mouse cardiomyocytes and mice for immunofluorescence, immunochemistry, qRT-PCR, and western blot analyses...
April 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28419990/effects-of-estradiol-on-autophagy-and-nrf-2-are-signals-after-cerebral-ischemia
#8
Litao Li, Jinghong Chen, Sujuan Sun, Jingru Zhao, Xiaoli Dong, Jianhua Wang
BACKGROUND/AIMS: Estradiol (EST) reduces the risk of stroke and decreases the incidence and progression of the disease because of its neuroprotective roles in inhibiting cell death that occurs in response to a variety of neuronal stimuli such as inflammation and oxidative stress. In this study, we determined the role played by autophagy and Nrf2-ARE signal pathways in the hippocampus regions in modulating cerebral ischemia under different EST conditions. METHODS: Western blot analysis and ELISA were used to determine the protein expression of autophagy and Nrf2-ARE pathways; and the levels of pro-inflammatory cytokines (PICs) and a key marker of oxidative stress...
April 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28419983/pam3csk4-induces-mmp-9-expression-in-human-monocytic-thp-1-cells
#9
Fatema Al-Rashed, Shihab Kochumon, Safa Usmani, Sardar Sindhu, Rasheed Ahmad
BACKGROUND: Matrix metalloproteinase (MMP)-9 is known to degrade the extracellular matrix and increased MMP-9 levels are related with the pathogenesis of many inflammatory conditions including obesity. Pam3CSK4 is a synthetic triacylated lipopeptide (LP) which is a potent activator of immune cells and induces cytokine production. However, it is unclear whether Pam3CSK4 is able to induce MMP-9 expression in monocytic cells. We, therefore, determined MMP-9 production by Pam3CSK4-treated THP-1 cells and also investigated the signal transduction pathway(s) involved...
April 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28391277/lincrna-p21-inhibits-the-wnt-%C3%AE-catenin-pathway-in-activated-hepatic-stellate-cells-via-sponging-microrna-17-5p
#10
Fujun Yu, Yong Guo, Bicheng Chen, Liang Shi, Peihong Dong, Mengtao Zhou, Jianjian Zheng
BACKGROUND/AIMS: It is known that the activation of hepatic stellate cells (HSCs) is a pivotal step in the initiation and progression of liver fibrosis. Aberrant activated Wnt/β-catenin pathway is known to accelerate the development of liver fibrosis. microRNAs (miRNAs)-mediated Wnt/β-catenin pathway has been reported to be involved in HSC activation during liver fibrosis. However, whether long noncoding RNAs (lncRNAs) regulate Wnt/β-catenin pathway during HSC activation still remains unclear...
April 7, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28391274/inhibition-of-brd4-suppresses-cell-proliferation-and-induces-apoptosis-in-renal-cell-carcinoma
#11
Xinchao Wu, Dong Liu, Xuemei Gao, Fei Xie, Dan Tao, Xingyuan Xiao, Liang Wang, Guosong Jiang, Fuqing Zeng
BACKGROUND/AIMS: Renal cell carcinoma (RCC) remains an intractable genitourinary malignancy. Resistance to chemotherapy or targeted therapies in RCC is presumably due to the complicated underlying molecular mechanisms and insufficient understanding. The aim of this research was to assess the expression and role of bromodomain-4 protein (BRD4) in RCC and evaluate the effects of BRD4 inhibitor JQ1 for RCC treatment. METHODS: BRD4 expressionlevels were assessed by qRT-PCR and western blot in RCC tissues and cells...
April 7, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28391269/rebeccamycin-attenuates-tnf-%C3%AE-induced-intestinal-epithelial-barrier-dysfunction-by-inhibiting-myosin-light-chain-kinase-production
#12
Akihiro Watari, Yuta Sakamoto, Kota Hisaie, Kazuki Iwamoto, Miho Fueta, Kiyohito Yagi, Masuo Kondoh
BACKGROUND/AIMS: Although proinflammatory cytokine-induced disruption of intestinal epithelial barrier integrity is associated with intestinal inflammatory disease, effective treatment for barrier dysfunction is lacking. Previously, we demonstrated that rebeccamycin alleviates epithelial barrier dysfunction induced by inflammatory cytokines in Caco-2 cell monolayers; however, the underlying mechanism remained unclear. Here, we investigated the mechanism by which rebeccamycin protects the epithelial barrier function of Caco-2 cells exposed to TNF-α...
April 7, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28391263/salvianolic-acid-a-protects-h9c2-cells-from-arsenic-trioxide-induced-injury-via-inhibition-of-the-mapk-signaling-pathway
#13
Jing-Yi Zhang, Gui-Bo Sun, Yun Luo, Min Wang, Wei Wang, Yu-Yang Du, Ying-Li Yu, Xiao-Bo Sun
BACKGROUND/AIMS: This study aimed to investigate whether Salvianolic acid A (Sal A) conferred cardiac protection against Arsenic trioxide (ATO)-induced cardiotoxicity in H9c2 cells by inhibiting MAPK pathways activation. METHODS: H9c2 cardiac cells were exposed to 10 µM ATO for 24 h to induce cytotoxicity. The cells were pretreated with Sal A for 4 h before exposure to ATO. Cell viability was determined utilizing the MTT assay. The percentage of apoptosis was measured by a FITC-Annexin V/PI apoptosis kit for flow cytometry...
April 7, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28391262/microrna-661-enhances-trail-or-sts-induced-osteosarcoma-cell-apoptosis-by-modulating-the-expression-of-cytochrome-c1
#14
Lin Fan, Chunyan Zhu, Rongmin Qiu, Pengfei Zan, Zhi Zheng, Tianyang Xu, Guodong Li
AIM: Osteosarcoma (OS) is an aggressive bone malignancy that affects rapidly growing bones and is associated with a poor prognosis. Our previous study showed that cytochrome c1 (CYC1), a subunit of the cytochrome bc1 complex (complex III) of the mitochondrial electron chain, is overexpressed in human OS tissues and cell lines and its silencing induces apoptosis in vitro and inhibits tumor growth in vivo. Here, we investigated the mechanism underlying the modulation of CYC1 expression in OS and its role in the resistance of OS to apoptosis...
April 7, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28384643/notch-signaling-augments-bmp9-induced-bone-formation-by-promoting-the-osteogenesis-angiogenesis-coupling-process-in-mesenchymal-stem-cells-mscs
#15
Junyi Liao, Qiang Wei, Yulong Zou, Jiaming Fan, Dongzhe Song, Jing Cui, Wenwen Zhang, Yunxiao Zhu, Chao Ma, Xue Hu, Xiangyang Qu, Liqun Chen, Xinyi Yu, Zhicai Zhang, Claire Wang, Chen Zhao, Zongyue Zeng, Ruyi Zhang, Shujuan Yan, Tingting Wu, Xingye Wu, Yi Shu, Jiayan Lei, Yasha Li, Hue H Luu, Michael J Lee, Russell R Reid, Guillermo A Ameer, Jennifer Moriatis Wolf, Tong-Chuan He, Wei Huang
BACKGROUND/AIMS: Mesenchymal stem cells (MSCs) are multipotent progenitors that can differentiate into several lineages including bone. Successful bone formation requires osteogenesis and angiogenesis coupling of MSCs. Here, we investigate if simultaneous activation of BMP9 and Notch signaling yields effective osteogenesis-angiogenesis coupling in MSCs. METHODS: Recently-characterized immortalized mouse adipose-derived progenitors (iMADs) were used as MSC source...
April 4, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28376489/triiodothyronine-potentiates-vasorelaxation-via-pkg-vasp-signaling-in-vascular-smooth-muscle-cells
#16
Sherin Samuel, Kuo Zhang, Yi-Da Tang, A Martin Gerdes, Maria Alicia Carrillo-Sepulveda
BACKGROUND/AIMS: Vascular relaxation caused by Triiodothyronine (T3) involves direct activation of endothelial cells (EC) and vascular smooth muscle cells (VSMC). Activation of protein kinase G (PKG) has risen as a novel contributor to the vasorelaxation mechanism triggered by numerous stimuli. We hypothesize that T3-induced vasorelaxation involves PKG/vasodilator-stimulated phosphoprotein (VASP) signaling pathway in VSMC. METHODS: Human aortic endothelial cells (HAEC) and VSMC were treated with T3 for short (2 to 60 minutes) and long term (24 hours)...
April 4, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28376475/osteopontin-bone-morphogenetic-protein-4-and-vitamin-d-receptor-gene-polymorphisms-in-the-susceptibility-and-clinical-severity-of-spinal-tuberculosis
#17
Guohua Wang, Liangyi Xie, Jianzhong Hu, Hongbin Lu, Xiangyang Liu, Yong Cao, Bin Liu, Yi Zhang, Xiongjie Shen
BACKGROUND/AIMS: Spinal tuberculosis (TB) is a common and dangerous form of extrapulmonary TB with unclear mechanisms in its occurrence and progression. This study investigated the clinical significances of bone morphogenetic protein-4 (BMP-4), osteopontin (OPN), and vitamin D receptor (VDR) gene polymorphism, mRNA and protein expression in spinal TB patients. METHODS: BMP-4 and OPN gene polymorphisms were detected by direct DNA sequencing, while VDR-FokI polymorphisms were analyzed using PCR-RFLP...
April 4, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28376494/exogenous-hydrogen-sulfide-ameliorates-diabetes-associated-cognitive-decline-by-regulating-the-mitochondria-mediated-apoptotic-pathway-and-il-23-il-17-expression-in-db-db-mice
#18
Shuainan Ma, Di Zhong, Pingwei Ma, Guozhong Li, Wei Hua, Yu Sun, Ning Liu, Linxue Zhang, Weihua Zhang
BACKGROUND: Diabetes-associated cognitive decline (DACD) is one of the complications of diabetes and leads to cognitive impairment and an increased risk of dementia. However, the exact mechanism of DACD has not been fully characterized, and a successful therapy for this issue has not been established. This study aimed to detect the anti-apoptotic and anti-inflammatory effects of hydrogen sulfide (H2S) on DACD. METHODS: We used a behavioural scoring method, Western blot, TUNEL staining and immunofluorescence staining to investigate the expression of the mitochondrial apoptotic pathway and the IL-23/IL-17 axis in db/db mice with or without sodium hydrosulfide (NaHS) administration...
April 3, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28376491/glycobiology-modifications-in-intratumoral-hypoxia-the-breathless-side-of-glycans-interaction
#19
Antônio F Silva-Filho, Wanessa L B Sena, Luiza R A Lima, Lidiane V N Carvalho, Michelly C Pereira, Lucas G S Santos, Renata V C Santos, Lucas B Tavares, Maira G R Pitta, Moacyr J B M Rêgo
Post-translational and co-translational enzymatic addition of glycans (glycosylation) to proteins, lipids, and other carbohydrates, is a powerful regulator of the molecular machinery involved in cell cycle, adhesion, invasion, and signal transduction, and is usually seen in both in vivo and in vitro cancer models. Glycosyltransferases can alter the glycosylation pattern of normal cells, subsequently leading to the establishment and progression of several diseases, including cancer. Furthermore, a growing amount of research has shown that different oxygen tensions, mainly hypoxia, leads to a markedly altered glycosylation, resulting in altered glycan-receptor interactions...
April 3, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28376483/long-non-coding-rnas-in-cardiac-remodeling
#20
Shutong Shen, Huimin Jiang, Yihua Bei, Junjie Xiao, Xinli Li
Cardiac remodeling occurs after stress to the heart, manifested as pathological processes, including hypertrophy and apoptosis of cardiomyocytes, dysfunction of vascular endothelial cells and vascular smooth muscle cells as well as differentiation and proliferation of fibroblasts, ultimately resulting in progression of cardiovascular diseases. Emerging evidence has revealed that long non-coding RNAs (lncRNAs) acted as powerful and dynamic modifiers of cardiac remodeling. LncRNAs including Chaer, Chast, Mhrt, CHRF, ROR, H19, and MIAT have been implicated in cardiac hypertrophy while NRF, H19, APF, CARL, UCA, Mhrt and several other lncRNAs (n379599, n379519, n384640, n380433 and n410105) in cardiomyocyte loss and extracellular matrix remodeling...
April 3, 2017: Cellular Physiology and Biochemistry
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