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BCL-2 block

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https://www.readbyqxmd.com/read/28810552/anti-cxcl4-monoclonal-antibody-accelerates-telogen-to-anagen-transition-and-attenuates-apoptosis-of-the-hair-follicle-in-mice
#1
Wen Guan, Xiaolan Yu, Jingjing Li, Qing Deng, Yang Zhang, Jing Gao, Peng Xia, Yunsheng Yuan, Jin Gao, Liang Zhou, Wei Han, Yan Yu
Although hair loss or alopecia is a common disease, its exact mechanisms are not yet well understood. The present study investigated the hypothesis that the homeostatic regulation of genes during hair regeneration may participate in hair loss, based on the cyclicity of hair growth. A cluster of such genes was identified by an expression gene-array from the dorsal skin in a depilated mouse model, and CXCL4 was identified as a significantly regulated gene during the hair regeneration process. To elucidate the function of CXCL4 in hair growth, CXCL4 activity was blocked by the administration of an anti-CXCL4 monoclonal antibody (mAb)...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28807785/blocking-the-cd38-cadpr-pathway-plays-a-double-edge-role-in-lps-stimulated-microglia
#2
Yi-Min Wang, Zhi-Yong Liu, Yu-Hang Ai, Li-Na Zhang, Yu Zou, Qian-Yi Peng
Whether the CD38/ cyclic ADP-ribose (cADPR) pathway plays a protective or detrimental role in neuroinflammation remains controversial. This study aimed to determine the role of CD38 in neuroinflammation using lipopolysaccharide (LPS)-stimulated BV2 microglial cells and co-cultured Neuro-2a (N2a) cells. In monoculture experiments, BV2 cells were divided into control, CD38 interference (CD38Ri), negative control (NC), LPS, CD38Ri+LPS, NC+LPS and 8-Br-cADPR+LPS groups. In co-culture experiments, N2a cells were co-cultured with BV2 cells for 48 h...
August 11, 2017: Neuroscience
https://www.readbyqxmd.com/read/28807223/gts40-an-active-fraction-of-gou-teng-san-gts-protects-pc12-from-h2o2-induced-cell-injury-through-antioxidative-properties
#3
Lei Chen, Meng-Lin Wei, Jiao-Jiao Zhao, Hao Hong, Wei Qu, Feng Feng, Wen-Yuan Liu
Oxidative stress, a predominant cause of apoptosis cascades triggered in neurodegenerative disorders, has been regarded as a critical inducement in the pathogenesis of Alzheimer's disease (AD). Gou Teng-San (GTS) is a traditional Chinese herbs preparation commonly utilized to alleviate cognitive dysfunction and psychological symptoms of patients with dementia. The present study aimed to investigate the protective effects of GTS40, an active fraction of GTS, on H2O2-induced oxidative damage and identify the potential active ingredients...
July 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28804614/protective-effect-of-bioactive-compounds-from-echinophora-cinerea-against-cisplatin-induced-oxidative-stress-and-apoptosis-in-the-pc12-cell-line
#4
Yald Shokoohinia, Shekoufeh Khajouei, Farahnaz Ahmadi, Nastaran Ghiasvand, Leila Hosseinzadeh
OBJECTIVES: The present study aims to evaluate the protective effect of the compounds isolated from Echinophora cinerea (E. cinerea) against oxidative stress and apoptosis induced by cisplatin (CIS) in PC12 cells. MATERIALS AND METHODS: Six compounds were isolated as quercetrin-3-O-β-D-glucopyranoside (QUE), osthol (OST), verbenone-5-O-β-D-glycopyranoside (VER), Isoimperatorin (ISO), kaempferol-3-O-β-D-glucopyranoside (KAM), and echinophorin B (ECH). For this study, we used MTT reduction assay for detection of protective effects of isolated compounds on CIS-induced cytotoxicity in PC12 cells...
April 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28803955/valproic-acid-exposure-decreases-the-mrna-stability-of-bcl-2-via-up-regulating-mir-34a-in-the-cerebellum-of-rat
#5
Xufang Dai, Yunhou Yin, Liyan Qin
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by impaired social interaction, limited verbal communication and repetitive behaviors. Previous studies have shown that the level of Bcl-2 in the brain tissues of ASD patients is significantly decreased. However, the mechanisms underlie the down-regulation of Bcl-2 in ASD is still unknown. In this study, we investigated the alteration of Bcl-2 level and associated mechanisms in valproic acid (VPA) exposed ASD rats. VPA exposure resulted in ASD-like behaviors in rats, such as repetitive behavior and social interaction impairment...
August 10, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28796407/effects-of-gene-knockdown-of-cnp-on-ventricular-remodeling-after-myocardial-ischemia-reperfusion-injury-through-nprb-cgmp-signaling-pathway-in-rats
#6
Lian-He Wu, Qi Zhang, Shen Zhang, Lu-Yu Meng, Yan-Chi Wang, Cun-Jian Sheng
This study aimed to explore effects of CNP on ventricular remodeling following myocardial ischemia-reperfusion (I/R) injury through the NPRB/cGMP signaling pathway. Rat cardiomyocyteswere assigned into: control, I/R, I/R + CNP, and I/R+ 8-Br-cGMP groups. ELISA, qRT-PCR and western blotting were used to detect cGMP content and expression, respectively. After model establishment of I/R rats, normal control, CNP(-/-) control, I/R, and CNP(-/-) groups were set. Indexes of heart were detected using echocardiography and hemodynamics...
August 10, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28789701/a-novel-bladder-cancer-specific-oncolytic-adenovirus-by-cd46-and-its-effect-combined-with-cisplatin-against-cancer-cells-of-car-negative-expression
#7
Wenjuan Cao, Junqiang Tian, Chong Li, Yanjun Gao, Xingchen Liu, Jianzhong Lu, Yuhan Wang, Zhiping Wang, Robert S Svatek, Ronald Rodriguez
BACKGROUND: Conditionally replicative oncolytic adenoviruses (CRAds) display significant anti-tumor effects. However, the traditional adenovirus of serotype 5 (Ad5) entering cancer cells via coxsackie virus and adenovirus receptor (CAR) can't be utilized for bladder cancer with low expression of CAR, which limits the application of Ad5. METHODS: We utilized Ad5/F11p containing the chimeric fiber gene encoding the Ad5 fiber tail domain and Ad11p fiber shaft and knob domains to construct bladder cancer-specific chimeric type viruses Ad5/F11p-PSCAE-UPII-E1A, which can infect bladder cancer cells mediated by CD46 molecule...
August 8, 2017: Virology Journal
https://www.readbyqxmd.com/read/28776758/aerobic-exercise-blocks-interleukin-6-levels-and-germ-cell-apoptosis-in-obese-rats
#8
N-C Li, X-X Wei, Y-L Hu, X Hou, H Xu
To investigate the effect of a high-fat diet and aerobic exercise intervention and its related mechanism on rat germ cell apoptosis. Forty male Sprague-Dawley rats were randomly divided into control group, high-fat diet group, control exercise group and high-fat exercise group. Rats were fed with high-fat diet or were given weight-free swimming. The levels of TG, TC, HDL, LDL and IL-6 in serum of rats were measured. The body weight, body length and inguinal fat weight were measured to calculate the Lee's index and lipid/body weight ratio...
August 3, 2017: Andrologia
https://www.readbyqxmd.com/read/28774732/downregulation-of-tigar-sensitizes-the-antitumor-effect-of-physapubenolide-through-increasing-intracellular-ros-levels-to-trigger-apoptosis-and-autophagosome-formation-in-human-breast-carcinoma-cells
#9
Ting Ma, Yi Zhang, Chao Zhang, Jian-Guang Luo, Ling-Yi Kong
Physapubenolide (PB) is a cytotoxic withanolide isolated from Physalis angulate that was used as a traditional Chinese medicine. In this study, we investigated the role of TIGAR and ROS in PB-induced apoptosis and autophagosome formation in human breast carcinoma MDA-MB-231 and MCF-7 cells. PB induced apoptosis by decreasing mitochondrial membrane potential and elevating the Bax/Bcl-2 protein expression ratio in MDA-MB-231 and MCF-7 cells. Caspase inhibitor Z-VAD-FMK treatment partly blocked PB induced cytotoxicity, suggesting that apoptosis serves as an important role in the anti-proliferative effect of PB...
July 31, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28770967/suppression-of-adriamycin-resistance-in-osteosarcoma-by-blocking-wnt-%C3%AE-catenin-signal-pathway
#10
B-Q Wu, Y Cao, Z-G Bi
OBJECTIVE: Wnt/β-catenin signal pathway plays a role in regulating cell proliferation and apoptosis, and is correlated with tumor onset, progression and drug resistance. B-cell lymphoma 2 (Bcl-2) is an anti-apoptotic factor inducing tumor cell drug resistance. Wnt/β-catenin signal pathway can modulate Bcl-2 expression. This study established a cell model of drug resistance using adriamycin (ADM) treatment. Wnt/β-catenin signal pathway was intervened to discuss its role in drug resistance of osteosarcoma cells...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28756222/role-of-lncrna-tug1-in-intervertebral-disc-degeneration-and-nucleus-pulposus-cells-via-regulating-wnt-%C3%AE-catenin-signaling-pathway
#11
Jiang Chen, Yu-Song Jia, Gen-Zhe Liu, Qi Sun, Fan Zhang, Sheng Ma, Yong-Jun Wang
OBJECTIVE: To investigate the role of TUG1 in intervertebral disc degeneration (IDD) and human nucleus pulposus cells (NPCs) via regulating Wnt/β-catenin pathway. METHODS: The study collected nucleus pulposus (NP) tissue samples from 30 patients with lumbar disc herniation (LDH) (Case group) and 18 patients with lumbar spine trauma (Control group). NPCs induced by TNF-α in vitro were divided into Blank, Vector, TUG1, TUG1-siRNA, XAV-939, TUG1 + XAV-939 groups...
July 26, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28754880/anti-proliferation-of-triple-negative-breast-cancer-cells-with-physagulide-p-ros-jnk-signaling-pathway-induces-apoptosis-and-autophagic-cell-death
#12
Pei Yu, Chao Zhang, Cai-Yun Gao, Ting Ma, Hao Zhang, Miao-Miao Zhou, Yan-Wei Yang, Lei Yang, Ling-Yi Kong
Physagulide P (PP), a new natural compound, was isolated from Physalis angulate L. in our laboratory. In this study, we demonstrated that PP potently suppressed cell proliferation by inducing G2/M phase arrest in MDA-MB-231 and MDA-MB-468 cells. Moreover, PP provoked apoptosis by decreasing the mitochondrial membrane potential and elevating the Bax/Bcl-2 protein expression ratio. The caspase inhibitor Z-VAD-FMK partly restore cell viability, suggesting that apoptosis plays as an important role in the anti-proliferative effect of PP...
July 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28746210/anticancer-effect-of-saussurea-lappa-extract-via-dual-control-of-apoptosis-and-autophagy-in-prostate-cancer-cells
#13
Xue Tian, Hae Seong Song, Young Mi Cho, Bongkyun Park, Yoon-Jae Song, Sunphil Jang, Se Chan Kang
To demonstrate the mechanisms of the curative effect of Saussurea lappa ethanol extract (SLE) against prostate cancer, we evaluated the effect of SLE on the induction of apoptosis and autophagy and investigated whether SLE-induced autophagy exerts a pro-survival or pro-apoptotic effect in lymph node carcinoma of the prostate (LNCaP) prostate cancer cells. SLE was prepared using 100% ethanol and added to LNCaP cells for 24 hours. Cell viability was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and cell apoptosis was evaluated by Tali assay...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28744338/role-of-kallistatin-treatment-in-aging-and-cancer-by-modulating-mir-34a-and-mir-21-expression
#14
REVIEW
Julie Chao, Youming Guo, Pengfei Li, Lee Chao
Kallistatin is an endogenous protein that regulates differential signaling pathways and a wide spectrum of biological activities via its two structural elements: an active site and a heparin-binding domain. Kallistatin via its heparin-binding site inhibits vascular inflammation and oxidative stress by antagonizing TNF-α-induced NADPH oxidase activity, NF-κB activation, and inflammatory gene expression in endothelial cells. Moreover, kallistatin via its active site inhibits microRNA-34a (miR-34a) synthesis and stimulates eNOS and SIRT1 expression in endothelial progenitor cells, whereas its heparin-binding site is crucial for blocking TNF-α-induced miR-21 expression and oxidative stress, thus reducing cellular senescence...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28731145/piezo1-protein-induces-the-apoptosis-of-human-osteoarthritis-derived-chondrocytes-by-activating-caspase-12-the-signaling-marker-of-er-stress
#15
Xiao-Fei Li, Zhao Zhang, Zhu-Ke Chen, Zhao-Wei Cui, Hai-Ning Zhang
The present study was carried out to determine whether the mechanically activated cation channel Piezo1 protein plays a role as a signaling pathway which causes the apoptosis of human chondrocytes. The chondrocytes were isolated, cultured, and then subjected to mechanical stretch force for 0, 2, 12, 24 and 48 h, respectively. The expression levels of Piezo1 and the apoptosis-related protein caspase-12 were assessed by reverse transcription-quantitative polymerase chain reaction, as well as the apoptosis-related genes, B cell lymphoma/leukemia-2 (Bcl-2), Bcl-associated X protein (Bax) and Bcl-2-associated death promoter (BAD)...
September 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28731137/phosphorylation-of-bcl-2-plays-an-important-role-in-glycochenodeoxycholate-induced-survival-and-chemoresistance-in-hcc
#16
Maojun Zhou, Qi Zhang, Jinfeng Zhao, Mingmei Liao, Sailan Wen, Manyi Yang
Hepatocellular carcinoma (HCC) is a highly malignant tumor and can evolve rapidly to resistance to chemotherapies. Glycochenodeoxycholate (GCDA), which is toxic and hydrophobic, is the main ingredient in the bile and associated with carcinogenesis of gastrointenstinal tumors. Bcl-2 is the most important anti-apoptotic protein and overexpressed in various human tumors. In the present study, we found that GCDA can induce the chemoresistance of human liver cancer cells and specific depletion of Bcl-2 by RNA interference blocks GCDA-stimulated chemoresistance, which indicate the pivotal role of Bcl-2 in such process...
July 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28730778/study-on-the-effect-of-integrin-%C3%AE-%C3%AE-%C3%AE-6-on-the-proliferation-and-apoptosis-of-thyroid-carcinoma-cells
#17
Zhilong Tian, Hailin Xi, Xiaokai Wang, Su Feng, Gaolei Jia
PURPOSE: To study the effect of integrin αvβ6 on the proliferation and apoptosis of thyroid carcinoma cells. METHODS: The experiment was conducted on 3 groups : the control group, the positive observation group (in which the ανβ6 on the surface of the thyroid carcinoma cell line SW579 was blocked by monoclonal antibody 10D5) and the negative observation group (in which the ανβ6 was dealt with the negative placebo of 10D5-the IgG2a). Cell proliferation was detected by MTT assay, apoptosis by flow cytometry and the protein levels in Caspase-3, CyclinB1 and Bcl-xl as well as the protein levels in ERK, p-ERK, JNK, p-JNK, p38 and p-p38 were detected by Western blot...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28728293/-curcumin-induces-apoptosis-and-protective-autophagy-in-human-gastric-cancer-cells-with-different-degree-of-differentiation
#18
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/28721054/neuroprotective-effects-of-curdione-against-focal-cerebral-ischemia-reperfusion-injury-in-rats
#19
Xing-Jie Li, Li Liang, Hong-Xia Shi, Xiao-Ping Sun, Jing Wang, Lian-Sheng Zhang
BACKGROUND: Curdione is one of the most highly concentrated component of the active constituents in E-zhu, which has been reported to possess a variety of activities. However, the pharmacologic neuroprotective activity of curdione has not been evaluated. The present study aimed to investigate the protective effect of curdione on focal cerebral ischemia reperfusion-induced injury in rats and further exploring the underlying mechanisms. MATERIALS AND METHODS: Adult male Sprague Dawley rats were subjected to middle cerebral artery occlusion (MCAO) surgery for 2 h, followed by reperfusion stage...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28714224/codelivery-for-paclitaxel-and-bcl-2-conversion-gene-by-phb-pdmaema-amphiphilic-cationic-copolymer-for-effective-drug-resistant-cancer-therapy
#20
Xiaoyuan Wang, Sing Shy Liow, Qiaoqiong Wu, Chuang Li, Cally Owh, Zibiao Li, Xian Jun Loh, Yun-Long Wu
Antiapoptotic Bcl-2 protein's upregulated expression is a key reason for drug resistance leading to failure of chemotherapy. In this report, a series of biocompatible amphiphilic cationic poly[(R)-3-hydroxybutyrate] (PHB)-b-poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) copolymer, comprising hydrophobic PHB block and cationic PDMAEMA block, is designed to codeliver hydrophobic chemotherapeutic paclitaxel and Bcl-2 converting gene Nur77/ΔDBD with enhanced stability, due to the micelle formation by hydrophobic PHB segment...
July 17, 2017: Macromolecular Bioscience
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