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https://www.readbyqxmd.com/read/29346581/melatonin-attenuates-lung-ischaemia-reperfusion-injury-via-inhibition-of-oxidative-stress-and-inflammation
#1
Ming-Liang Wang, Chun-Hua Wei, Wen-Dong Wang, Jia-Shun Wang, Jun Zhang, Jian-Jun Wang
OBJECTIVES: Lung ischaemia-reperfusion injury is a complex pathophysiological process due to the production of reactive oxygen species and the generation of inflammatory reaction. We investigated the protective effects and the corresponding mechanism of melatonin (MT), a potent free-radical scavenger, on lung injury induced by ischaemia-reperfusion in a mouse model. METHODS: Adult male C57BL/6J mice (n = 30) were randomly and equally allocated into 5 groups: sham controls, IR, IR + 10 mg/kg MT, IR + 20 mg/kg MT and IR + 30 mg/kg MT...
January 15, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29346503/p53%C3%AE-a-new-prognostic-marker-for-patients-with-clear-cell-renal-cell-carcinoma-from-5-3-years-of-median-followup
#2
Haiyang Zhang, Yong Zhao, Peng Sun, Miaoqing Zhao, Zhenhui Su, Xunbo Jin, Wei Song
We previously reported six different p53 isoforms in renal cell carcinoma (RCC). In the present study, influences of p53β on recurrence-free survival (RFS) and overall survival (OS) were evaluated. Patients diagnosed with RCC in our center were into this study. mRNA expressions of p53 isoforms (p53α, p53β, p53γ) in tumors were determined by RT-PCR and real-time PCR. Functional yeast-based assay was performed to analyze p53 mutational status. p53β transfected 786-O and CAKi-1 cells were cultured to examine expressions of B-cell lymphoma 2-associated X protein (bax) and caspase-3, and ratios of apoptosis...
January 15, 2018: Carcinogenesis
https://www.readbyqxmd.com/read/29346059/fermented-extraction-of-citrus-unshiu-peel-inhibits-viability-and-migration-of-human-pancreatic-cancers
#3
Jungwhoi Lee, Jungsul Lee, Myungseung Kim, Jae Hoon Kim
Pancreatic cancer is one of the most dangerous cancers with high mortality rates. Despite continuous efforts, there has been limited improvement in its prognosis. In this study, we prepared fermented extract of Citrus unshiu peel (fCUP) from the by-product after juice processing and then examined the anticancer effects of fCUP on human pancreatic cancer cells. Treatment with fCUP inhibited the growth of human pancreatic cancer cells through induction of caspase-3 cleavage both in vitro and in vivo. Treatment with fCUP also blocked the migration of human pancreatic cancer cells through activation of intracellular signaling pathways such as MKK3/6 and P38...
January 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29345422/cantharidic-acid-induces-apoptosis-of-human-leukemic-hl-60-cells-via-c-jun-n-terminal-kinase-regulated-caspase-8-9-3-activation-pathway
#4
Shih-Chung Wang, Jyh-Ming Chow, Ming-Hsien Chien, Chiao-Wen Lin, Hui-Yu Chen, Pei-Ching Hsiao, Shun-Fa Yang
Cantharidin, a natural toxin from blister beetles, has shown potent anticancer activities on many solid tumor cells. Recently, cantharidin and its analogue, norcantharidin, were also shown to suppress nonsolid tumors such as chronic myeloid leukemia, acute myeloid leukemia (AML), and leukemic stem cells. However, there is no available information to address the effects of cantharidic acid (CAC), a hydrolysis product of cantharidin, on human AML cells. The present study showed that CAC, at a range of concentrations (0-20 μM), concentration-dependently inhibited cell proliferation in the HL-60 AML cell line...
January 18, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29345339/the-role-of-cdk5-mediated-drp1-phosphorylation-in-a%C3%AE-1-42-induced-mitochondrial-fission-and-neuronal-apoptosis
#5
Miao-Yu Guo, Lei Shang, Yang-Yang Hu, Li-Ping Jiang, Yu-Ying Wan, Qin-Qin Zhou, Kun Zhang, Hong-Fei Liao, Jing-Lin Yi, Xiao-Jian Han
Alzheimer's disease, one of the most common neurodegenerative diseases, is pathologically characterized by Amyloid beta containing plaques and neurofibrillary tangles. Amyloid beta (Aβ) induces neuronal apoptosis through the intracellular Ca2+ increase, subsequent hyperactivation of cyclin-dependent kinase 5 (Cdk5) and mitochondrial abnormality. Recently, Cdk5 was identified as an upstream regulator of mitochondrial fission during neuronal apoptosis, but the underlying mechanism remains unclear. Here, in vitro phosphorylation assays showed that Cdk5 could phosphorylate the recombinant Drp1 at Serine 579...
January 18, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29345333/effects-and-mechanism-of-puerarin-on-the-human-retinoblastoma-cells
#6
Chao Yang, Xiaohui Fan, Shuxia Fan
Puerarin is an isoflavonoid that is extracted from Kudzu root and is considered to have an anti-tumor effect. In the present study, the effects of puerarin on human retinoblastoma cells and the related pathways was determined. The retinoblastoma (RB) cell lines were used in this study. Cell viability and proliferation was measured by MTT assay. Cell cycle and apoptosis was determined by flow cytometry. The expression of caspase-3 and apoptosis-related proteins were detected by Western blotting following puerarin treatment...
January 18, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29345311/calcium-sensing-receptor-activates-the-nlrp3-inflammasome-in-ls14-preadipocytes-mediated-by-erk1-2-signaling
#7
Amanda D'Espessailles, Yuly A Mora, Cecilia Fuentes, Mariana Cifuentes
The study of the mechanisms that trigger inflammation in adipose tissue is key to understanding and preventing the cardiometabolic consequences of obesity. We have proposed a model where activation of the G protein-coupled calcium sensing receptor (CaSR) leads to inflammation and dysfunction in adipose cells. Upon activation, CaSR can mediate the expression and secretion of proinflammatory factors in human preadipocytes, adipocytes and adipose tissue explants. One possible pathway involved in CaSR-induced inflammation is the activation of the NLR family, pyrin domain-containing 3 (NLRP3) inflammasome, that promotes maturation and secretion of interleukin (IL)-1β...
January 18, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29345262/copper-i-complexes-with-phosphine-derived-from-sparfloxacin-part-iii-multifaceted-cell-death-and-preliminary-study-of-liposomal-formulation-of-selected-copper-i-complexes
#8
A Kyzioł, A Cierniak, J Gubernator, A Markowski, M Jeżowska-Bojczuk, U K Komarnicka
The cytotoxic effect of iodide or thiocyanate copper(i) complexes (1-PSf, 2-PSf, 3-PSf, 4-PSf) with phosphine derived from sparfloxacin (HSf) and 2,9-dimethyl-1,10-phenanthroline (dmp) or 2,2'-biquinoline (bq) as diimine auxiliary ligands was proved in vitro on somatic (MRC-5) and neoplastic (MCF7) human cell lines. Differences in mode of action were investigated in-depth for the selected dmp and bq complexes (1-PSf, 3-PSf, respectively) by elucidation of the following: (i) the efficiency to produce reactive oxygen species (ROS) in biological systems (cyclic voltammetry); (ii) their impact on mitochondrial membrane potential; (iii) potency for the activation of caspases 3 and 9; (iv) influence on the degree of DNA degradation (comet assay)...
January 18, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29344665/overexpression-of-septin-7-inhibits-melatonin-induced-cell-apoptosis-in-human-fetal-osteoblastic-cells-via-suppression-of-endoplasmic-reticulum-stress
#9
Xiaotong Meng, Yue Zhu, Lin Tao, Sichao Zhao, Shui Qiu
Our previous study demonstrated that melatonin could induce apoptosis in the human fetal osteoblastic (hFOB) 1.19 cell line via induction of endoplasmic reticulum stress (ERS), and recent studies have demonstrated that the expression of septin‑7 (SEPT7) exhibits a positive correlation with the concentration of melatonin. Western blotting demonstrated the expression level of SEPT7 was significantly upregulated in a dose‑dependent manner following treatment with differing concentrations of melatonin compared with the control groups, which did not receive any treatment...
January 17, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344664/crucial-role-of-ox40-ox40l-signaling-in-a-murine-model-of-asthma
#10
Wei Lei, Daxiong Zeng, Gaoqin Liu, Yehan Zhu, Jiajia Wang, Hongya Wu, Junhong Jiang, Jianan Huang
The aim of the present study was to explore the roles of OX40/OX40 ligand (OX40L) signaling and OX40+ T cells in ovalbumin (OVA)‑induced mouse asthma model. Asthma was induced by OVA exposure and subsequent co‑treatment with OX40L protein, neutralizing anti‑OX40L blocking antibody, OX40+ T cells or PBS. The protein expression levels of interleukin (IL)‑4, IL‑6, IL‑13, IL‑17, tumor necrosis factor (TNF)‑α and interferon (IFN)‑γ in bronchoalveolar lavage fluid (BALF) were examined using murine cytokine‑specific ELISA...
January 18, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344652/chrysophanol-inhibits-proliferation-and-induces-apoptosis-through-nf-%C3%AE%C2%BAb-cyclin-d1-and-nf-%C3%AE%C2%BAb-bcl-2-signaling-cascade-in-breast-cancer-cell-lines
#11
Li Ren, Zhouping Li, Chunmei Dai, Danyu Zhao, Yanjie Wang, Chunyu Ma, Chun Liu
Chrysophanol is an anthraquinone compound, which exhibits anticancer effects on certain types of cancer cells. However, the effects of chrysophanol on human breast cancer remain to be elucidated. The aim of the present study was to clarify the role of chrysophanol on breast cancer cell lines MCF‑7 and MDA‑MB‑231, and to identify the signal transduction pathways regulated by chrysophanol. MTT assay and flow cytometric analysis demonstrated that chrysophanol inhibited cell proliferation, and cell cycle progression in a dose‑dependent manner...
January 17, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344640/over-regulation-of-microrna-133b-inhibits-cell-proliferation-of-cisplatin-induced-non-small-cell-lung-cancer-cells-through-pi3k-akt-and-jak2-stat3-signaling-pathway-by-targeting-egfr
#12
Bin Li, Cui-Min Ding, Yan-Xiao Li, Jing-Cui Peng, Nan Geng, Wen-Wen Qin
The present study determined the anticancer activity and its mechanism of microRNA‑133b on cell proliferation of cisplatin-induced non-small cell lung cancer cells. The expression of microRNA-133b cisplatin‑induced non-small cell lung cancer (NSCLC) tissue was lower than that of para-carcinoma tissue in patients. Overall survival of higher expression in cisplatin-induced NSCLC patients was higher than that of lower expression in cisplatin‑induced NSCLC patients. Over-regulation of microRNA-133b inhibited cell proliferation and LDH activity, induced apoptosis and caspase-3 activity, suppressed the protein expression of EGFR, PI3K, p-Akt, p-JAK2 and p-STAT3, decreased cyclin D1 and increased Bax protein expression in cisplatin‑induced A549 cells...
January 15, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29344242/in-vivo-and-in-vitro-induction-of-the-apoptotic-effects-of-oxysophoridine-on-colorectal-cancer-cells-via-the-bcl-2-bax-caspase-3-signaling-pathway
#13
Shao-Ju Jin, Yun Yang, Lei Ma, Ben-Hui Ma, Li-Ping Ren, Liu-Cheng Guo, Wen-Bao Wang, Yan-Xin Zhang, Zhi-Jun Zhao, Mingchen Cui
Oxysophoridine (OSR) is a major active alkaloid extracted from Sophoraalopecuroides L. The aim of the present study was to investigate the induction of the apoptotic effects of OSR on colorectal cancer cells in vivo and in vitro. The results of the MTT and colony formation assays demonstrated that the proliferation of HCT116 cells was inhibited by OSR in vitro. The characteristics of cellular apoptosis in OSR-treated HCT116 cells were analyzed by Hoechst 33258 staining. It was also observed that the expression of caspase-3, B-cell lymphoma-2 (Bcl-2) associated X protein (Bax) and cytochrome c increased significantly upon OSR treatment...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344241/combined-pitavastatin-and-dacarbazine-treatment-activates-apoptosis-and-autophagy-resulting-in-synergistic-cytotoxicity-in-melanoma-cells
#14
Abeer Al-Qatati, Saeb Aliwaini
Melanoma is an aggressive skin cancer and its incidence is increasing faster than any other type of cancer. Whilst dacarbazine (DTIC) is the standard chemotherapy for metastatic melanoma, it has limited success. Statins, including pitavastatin, have been demonstrated to have a range of anti-cancer effects in a number of human cancer cell lines. The present study therefore explored the anti-cancer activity of combined DTIC and pitavastatin in A375 and WM115 human melanoma cells. Cell survival assays demonstrated that combined DTIC and pitavastatin treatment resulted in synergistic cell death...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344238/sophoridine-suppresses-cell-growth-in-human-medulloblastoma-through-foxm1-nf-%C3%AE%C2%BAb-and-ap-1
#15
Zhensong Yue, Tongguo Si, Zhanyu Pan, Wenfeng Cao, Zhuchen Yan, Zhansheng Jiang, Huaqiang Ouyang
Sophoridine is an alkaloid extracted from Sophora alopecuroides that has extensive pharmacological actions. In the present study, the effect of sophoridine on cell growth of human medulloblastoma and its mechanism were investigated. Human medulloblastoma D283-Med cells were incubated with 0, 0.5, 1 or 2 mg/ml sophoridine for 24, 48 or 72 h. Cell proliferation and cytotoxicity were analyzed using MTT and lactate dehydrogenase assays, respectively. Next, analyses of cell apoptosis and caspase-3/8 activity were performed using flow cytometry or spectrophotometry, respectively...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344203/mucin-1-promotes-radioresistance-in-hepatocellular-carcinoma-cells-through-activation-of-jak2-stat3-signaling
#16
Feng-Tao Yi, Qi-Ping Lu
Mucin 1 (MUC1) is aberrantly overexpressed in numerous human cancer types, including hepatocellular carcinoma (HCC) and contributes to chemoresistance of tumor cells. The aim of the present study was to evaluate the possible implication of MUC1 in radioresistance of HCC cells and the underlying mechanisms. It was demonstrated that MUC1 was significantly upregulated in HCC cells following irradiation exposure, which was coupled with increased phosphorylation of signal transducer and activator of transcription 3 (STAT3)...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344202/metformin-in-combination-with-cisplatin-inhibits-cell-viability-and-induces-apoptosis-of-human-ovarian-cancer-cells-by-inactivating-erk-1-2
#17
Jian-Hong Dang, Zhi-Jun Jin, Xiao-Jun Liu, Dian Hu, Jing Wang, Yan Luo, Ling-Ling Li
Metformin protects against insulin resistance by restoring insulin sensitivity and may also possess anticancer activity. The aim of the present study was to investigate the effects of metformin alone or combined with cisplatin (DDP) on the cell viability and apoptosis of HO-8910 human ovarian cancer cells, and to investigate metformin as a potential novel therapeutic for treating ovarian cancer. The viability of HO-8910 cells was assessed using a cell proliferation and cytotoxicity assay following treatment with different concentrations of metformin (0...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344198/combination-of-cecropinxj-and-ly294002-induces-synergistic-cytotoxicity-and-apoptosis-in-human-gastric-cancer-cells-via-inhibition-of-the-pi3k-akt-signaling-pathway
#18
Li-Jie Xia, Yan-Ling Wu, Fu-Chun Zhang
The aim of the present study was to investigate the cytotoxic and apoptotic effects of cecropinXJ against human gastric cancer BGC823 cells, either alone, or in combination with a specific phosphatidylinositol 3-kinase (PI3K) inhibitor, LY294002. Cell viability and the apoptosis rate were measured using flow cytometry with Annexin-V staining. Additionally, the expression levels of several RAC-α serine/threonine kinase (Akt) phosphorylation-associated proteins and apoptosis-regulating proteins were evaluated by western blot analysis...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344122/inhibition-of-breast-cancer-cell-growth-by-the-pteris-semipinnata-extract-ent-11%C3%AE-hydroxy-15-oxo-kaur-16-en-19-oic-acid
#19
Juekun Wu, Lili Meng, Meijun Long, Ying Ruan, Xi Li, Yong Huang, Wanshou Qiu
Previous studies have demonstrated strong anti-tumor effects of ent-11α-hydroxy-15-oxo-kaur-16-en-19-oic-acid (5F), an extract from Pteris semipinnata, in liver, lung, stomach and anaplastic thyroid cancer cells. However, whether 5F inhibits the growth of breast cancer cells remains unclear. The present study assessed the effect of 5F on breast cancer cells. The breast cancer cell lines MCF-7, MDA-MB-231 and SK-BR-3 were each treated with 0, 5, 10, 20 and 40 µg/ml 5F. Morphological changes in the breast cancer cells were assessed using fluorescence microscopy...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344116/knockdown-of-tgif-attenuates-the-proliferation-and-tumorigenicity-of-ec109-cells-and-promotes-cisplatin-induced-apoptosis
#20
Yadong Wang, Teng Pan, Li Li, Haiyu Wang, Jiangmin Li, Ding Zhang, Haiyan Yang
A previous study has reported that frequent amplifications of the TG-interacting factor (TGIF) were observed in esophageal squamous cell carcinoma. The aim of the present study was to investigate the potential role of TGIF in the proliferation and tumorigenicity of the esophageal cancer cell line EC109 and cisplatin-induced apoptosis. Stable TGIF-knockdown EC109 cell line was established by infecting short hairpin RNA (shRNA) lentiviral particles. Soft agar and tumor xenograft assays were applied in nude mice...
December 2017: Oncology Letters
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