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Jianye Zhang, Zhenzhu Lai, Wenjing Huang, Huiping Ling, Minting Lin, Sili Tang, Yun Liu, Yiwen Tao
Apicidin, an inhibitor of histone deacetylase obtained from the mangrove endophytic fungi Fusarium sp., showed a wide range of antiproliferative activity against various cancer cell lines. Apicidin has also been reported to induce apotosis via Fas/Fas ligand. Yet few studies have focused on mitochondrial pathway for its anti-tumor activity. Here, we evaluated its involved mitochondrial mechanism against lung cancer GLC-82 cells. Its structure was elucidated by MS and NMR spectroscopic data, and comparison of those data with published data...
April 19, 2017: Anti-cancer Agents in Medicinal Chemistry
Jia Du, Jun Cai, Shutao Wang, Hong You
OBJECTIVES: Perfluorooctane sulfonate (PFOS) and zinc oxide nanoparticles (ZnO-NPs) are frequently detected in the environment but few studies have assessed the joint toxicity of them. Oxidative stress and apoptosis to zebrafish (Danio rerio) embryos induced by the PFOS and ZnO-NPs were investigated in this study. MATERIAL AND METHODS: The embryos were exposed to the PFOS (0, 0.4, 0.8 and 1.6 mg/l), ZnO-NPs (12.5, 25, 50 mg/l) and PFOS plus ZnO-NPs (0.4+12.5, 0...
March 30, 2017: International Journal of Occupational Medicine and Environmental Health
Haitao Shen, Na Wu, Yu Wang, Lichun Zhang, Xiao Hu, Zhiguang Chen, Min Zhao
AIMS: This study aimed to investigate the role of Toll-like receptor 9 in paraquat-induced acute lung injury (ALI). MAIN METHODS: For in vivo study,C57BL mice were randomly assigned into the vehicle control group, paraquat group, paraquat + antagonist (ODN2088) group, and antagonist (ODN2088) group (n=24 per group). After paraquat 30mg/kg ip for 2, 24 and 48h, serum samples and lung tissues were collected to evaluate ALI and TLR9 signaling. As for in vitro research A549 cells were randomly divided into the control group, paraquat group, paraquat + TLR9 siRNA group, and TLR9 siRNA group...
March 28, 2017: Life Sciences
Yuan Wang, Jie Yang, Jie Li, Rui-Cang Wang, Jun Yuan, Yan Li, Su-Yun Wang, Chao Wang, Hong-Ling Hao
OBJECTIVE: To investigate the molecular mechanism of arsenic trioxide(ATO) inhibiting K562 cell proliferation, and explore the new targets for treating chronic myeloid leukemia(CML). METHODS: human CML cell line K562 cells were cultured in vitro, and were treated with different concentrations of ATO; MTT was used to detect the cell proliferation; flow cytometry(FCM) was used to determine cell apoptosis, cell cycle and the expression of CD44; Transcriptional levels of β-catenin and cyclin D1 were assayed by RT-PCR...
February 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
Walter Liszewski, David Gram Naym, Edyta Biskup, Robert Gniadecki
BACKGROUND: Photochemotherapy with psoralen and ultraviolet A (PUVA), with or without adjuvant interferon-α (IFN-α), is a first-line therapy for early-stage mycosis fungoides and other forms of cutaneous T-cell lymphoma (CTCL). However, the mechanism by which PUVA with IFN-α work in CTCL is poorly understood. PURPOSE: To develop a model to investigate the mechanisms of PUVA and PUVA with IFN-α in CTCL cells. METHODS: An in vitro model to study the molecular mechanisms of PUVA was created using two different CTCL cell lines, MyLa, which has functional p53, and HuT-78, in which p53 is inactivated due to a homozygous nonsense mutation...
February 14, 2017: Photodermatology, Photoimmunology & Photomedicine
Zhihong Yuan, Xian Fan, Bashar Staitieh, Chetna Bedi, Paul Spearman, David M Guidot, Ruxana T Sadikot
Triggering receptor expressed on myeloid cells-1(TREM-1) is a member of the superimmunoglobulin receptor family. We have previously shown that TREM-1 prolongs survival of macrophages treated with lipoolysaccharide through Egr2-Bcl2 signaling. Recent studies suggest a role for TREM-1 in viral immunity. Human immunodeficiency virus-1 (HIV) targets the monocyte/macrophage lineage at varying stages of infection. Emerging data suggest that macrophages are key reservoirs for latent HIV even in individuals on antiretroviral therapy...
February 9, 2017: Scientific Reports
Qian Wang, Wei Ding, Jing-Jing Wu, Yi-Han Ding, Yu-Feng Li
OBJECTIVE: To explore the effects of homoharringtonine (HHT) alone or combined with imatinib (IM) on K562 cell proliferation and apoptosis, as well as the mRNA and protein expression of BCL6. METHODS: The CCK-8 was used to detect the inhibitory effect of drugs on cell growth, the flow cytometry was used to detect the cell apoptosis. The expression of BCL6 protein was assayed by Western blot, and BCL6 mRNA expression was detected by RT-PCR. RESULTS: HHT alone displayed a proliferation inhibition effect with dose- dependent manner, and induced apotosis; after combination of HHT and IM drugs, both the inhibitory rate and the apoptosis rate were significantly increased compared with the drug alone(P<0...
December 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
Han Zhu, Hua Qin, De-Min Li, Jing Liu, Qiu Zhao
The objective of this study was to investigate the effect of silencing gene protein phosphatase 1H (PPM1H) on malignant phenotype of human pancreatic cancer cell line BxPC-3. In order to explore the function of PPM1H in pancreatic cancer cells, real-time PCR and western blotting were used to detect the expression of PPM1H in different pancreatic cancer cell lines. Human pancreatic cancer cell line BxPC-3 was treated with 10 ng/ml TGF-β1 and 200 ng/ml BMP2 for 72 h, respectively, and the mRNA and protein expression levels of PPM1H and EMT-related markers (E-cadherin, vimentin) were detected by real-time PCR and western blotting, respectively...
November 2016: Oncology Reports
Menglin Xu, Diane C Wang, Xiangdong Wang, Yong Zhang
Mucins (MUC) are a family consisting of large O-glycoproteins whose primary functions are to protect and lubricate cell epithelial surfaces and contribute to intra- and inter-cellular signal pathways, cell proliferation, growth and apotosis. With the development of new technologies, MUCs begin to be identified as an effective marker in evaluating the tumor heterogeneity in lung cancer. MUCs' diverse expressions in subtypes of lung cancer indicate the inter-tumor heterogeneity. MUCs' mutation may also contribute to the development of intra-heterogeneity and evolution of lung cancer...
April 2017: Seminars in Cell & Developmental Biology
Xiao-Xia Sun, Liang-Ming Ma, Tao Wang
OBJECTIVE: To investigate the effect and possible mechanism of bromo-domain inhibitors (JQ1) on proliferation inhibition and inducing apoptosis of acute T lymphocyte leukemia cell line (Jurkat) . METHODS: Jurkat cell line was treated by JQ1 at different concentrations. MTT was used to detect the cell proliferation inhibition rate. The flow cytometry with AnnexinV-FITC/PI fluorescence staining was used to detect the changes of apoptosis rate, and real-time fluorescent quantitative PCR was used to detect c-Myc/Notch1 gene expression levels...
August 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
Jun-Shuai Yue, Qing-Yun Wu, Ling-Yu Zenge, Kai-Lin Xu
OBJECTIVE: To detect the expression of PTPN11 gene in acute myeloid leukemia (AML) cell line and to explore the effects of PTPN11 over expressing on proliferation and apotosis of AML cell lines. METHODS: The expression of PTPN11 in AML cell lines(HEL,U937, K562, KG-1, HL -60) was detected by RT-PCR, Q-PCR and Western blot. The PTPN11 gene was amplified by RT-PCR. PTPN11 DNA fragement and the lentiviral vector PCDH-CD513B were digested by BamHI and EcoRI, and then ligated by T4 DNA ligase...
August 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
Xiaohong Li, Ying Xiao, Shaoqing Fan, Mingbing Xiao, Xiaotong Wang, Xudong Chen, Chunsun Li, Guijuan Zong, Guoxiong Zhou, Chunhua Wan
OBJECTIVES: The receptor for activated protein kinase C (RACK1) is a scaffold protein involved in multiple intracellular signal pathways. Previous studies have shown that RACK1 is associated with the progression of multiple cancer types, including hepatocellular carcinoma and gastric cancer. However, the role of RACK1 in human pancreatic ductal adenocarcinoma (PDAC) remains unclear. METHODS: In this study, the expression of RACK1 was evaluated by Western blot analysis in 8 paired fresh PDAC tissues and immunohistochemistry on 179 paraffin-embedded slices...
August 3, 2016: Experimental and Molecular Pathology
Qiuping Chen, Tongda Xu, Dongye Li, Defeng Pan, Pei Wu, Yuanyuan Luo, Yanfeng Ma, Yang Liu
Recent studies have demonstrated that diabetes impairs the phosphatidylinositol 3-kinase/Akt (PI3K/Akt) pathway, while insulin resistance syndrome has been associated with alterations of this pathway in diabetic rats after ischemia/reperfusion (I/R), and activation of C-jun N-terminal kinase (JNK) is involved. The present study was designed to investigate whether inhibiting JNK activity would partially restore the PI3K/Akt signaling pathway and protect against myocardial I/R injury in diabetic rats, and to explore the effect of intervention with salvianolic acid A (Sal A)...
2016: American Journal of Translational Research
Chuanxiong Nie, Chong Cheng, Lang Ma, Jie Deng, Changsheng Zhao
Nanointerfacial decoration of silver nanoparticles (AgNPs) is an ideal protocol to improve the antibacterial efficiency of diverse nanomaterials, including carbon nanotube (CNT), graphene, and many other intensively studied nanoarchitectures, which provides a tremendous possibility for designing advanced antibacterial biomaterials and biomedical devices. However, the direct exposure of AgNPs will lead to potential mammalian cell apoptosis and death, which significantly limits their biological applications. In this study, we demonstrated a green and one-step approach to achieve robust antibacterial and highly biocompatible AgNP-CNT composites...
June 14, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
A V Pronin, I V Gogoleva, I Yu Torshin, O A Gromova
For over 60 years, high doses of lithium (hundreds of milligrams of elemental lithium) have being used to treat bipolar disorder. However, only during the past 20 years the relevant basic and clinical studies have shown that neuroprotective and neurotrophic effects of lithium are possible in much smaller doses ( hundreds of micrograms of elemental lithium). These data indicate a significant potential for the clinical applications of lithium-based drugs in modern neurology for the purposes of prevention and treatment of neurodegenerative and ischemic pathologies...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
Yating Liu, Tao Li, Yuanhong Xu, Enjun Xu, Min Zhou, Baolong Wang, Jilong Shen
Toll-like receptors (TLRs) are key factors in the innate immune system and initiate an inflammatory response to foreign pathogens, such as bacteria, fungi and viruses. TLR4-mediated signaling has been implicated in tumor cell proliferation and apoptosis in numerous cancers. The present study aimed to investigate the biological effect of TLR4 on the proliferation and apoptosis of human liver cancer cells and the mechanisms responsible for the regulation of cellular responses following TLR4 gene knockdown. Three TLR4 small interfering (si)RNA constructs, consisting of TLR4-siRNA-1, TLR4-siRNA-2 and TLR4-siRNA-3, were transiently transfected into HepG2 cells using Lipofectamine 2000...
May 2016: Oncology Letters
Zifeng Wang, Na Liu, Shuo Shi, Sanhong Liu, Haifan Lin
P-element-induced wimpy testis (PIWI) proteins bind to PIWI-interacting RNAs and play key roles in the biogenesis and functions of PIWI-interacting RNAs. It has been reported that PIWI proteins are essential for stem cell self-renewal and germline development in diverse organisms and that they are ectopically expressed in multiple forms of cancer. However, the role of PIWI in cancer remains elusive. Here we report that one of the four PIWI proteins in humans, PIWIL4, is highly expressed in both breast cancer tissues and the cytoplasm of MDA-MB-231 cells derived from breast cancer...
May 13, 2016: Journal of Biological Chemistry
Cristina Talarico, Lucia D'Antona, Domenica Scumaci, Agnese Barone, Francesco Gigliotti, Claudia Vincenza Fiumara, Vincenzo Dattilo, Enzo Gallo, Paolo Visca, Francesco Ortuso, Claudia Abbruzzese, Lorenzo Botta, Silvia Schenone, Giovanni Cuda, Stefano Alcaro, Cataldo Bianco, Patrizia Lavia, Marco G Paggi, Nicola Perrotti, Rosario Amato
The SGK1 kinase is pivotal in signal transduction pathways operating in cell transformation and tumor progression. Here, we characterize in depth a novel potent and selective pyrazolo[3,4-d]pyrimidine-based SGK1 inhibitor. This compound, named SI113, active in vitro in the sub-micromolar range, inhibits SGK1-dependent signaling in cell lines in a dose- and time-dependent manner. We recently showed that SI113 slows down tumor growth and induces cell death in colon carcinoma cells, when used in monotherapy or in combination with paclitaxel...
November 10, 2015: Oncotarget
Dengrui Li, Sumin Guo, Hui Li, Guiyun Zhu, Li Gao, Xin Xin, Dandan Yan, Xiuwu Li, Shujun Geng, Hongwei Hou, Yonghui Yang
BACKGROUND: Adenocarcinoma, the most common form of lung cancer, is one of main human malignant tumors. In this paper, we focus on the effect of antitumor activity of cytokine-induced killer (CIK) cells on human lung adenocarcinoma cell line A549. METHODS: CIK cells were obtained by inducing peripheral blood mononuclear cells with recombinant human (rh) interferon-gamma, monoclonal anti-CD3 antibody, rh interleukin (IL)-1alpha, and rhIL-2, which were added into the culture...
July 2015: Thoracic Cancer
Robert Hanna
This review summarises the findings of a series of studies in which the histological changes, induced in the reproductive system of Fasciola hepatica following treatment of the ovine host with the anthelmintic triclabendazole (TCBZ), were examined. A detailed description of the normal macroscopic arrangement and histological features of the testes, ovary, vitelline tissue, Mehlis' gland and uterus is provided to aid recognition of the drug-induced lesions, and to provide a basic model to inform similar toxicological studies on F...
2015: Pathogens
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