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https://www.readbyqxmd.com/read/28320088/flower-extract-of-allium-atroviolaceum-triggered-apoptosis-activated-caspase-3-and-down-regulated-antiapoptotic-bcl-2-gene-in-hela-cancer-cell-line
#1
Somayeh Khazaei, Vasudevan Ramachandran, Roslida Abdul Hamid, Norhaizan Mohd Esa, Ali Etemad, Sara Moradipoor, Patimah Ismail
Cervical cancer accounts for the second most frequent cancer and also third leading cause of cancer mortality (15%) among women worldwide. The major problems of chemotherapeutic treatment in cervical cancer are non-specific cytotoxicity and drug resistance. Plant-derived products, known as natural therapies, have been used for thousands of years in cancer treatment with a very low number of side effects. Allium atroviolaceum is a species in the genus Allium and Liliaceae family, which could prove to have beneficial effects on cancer treatment, although there is a lack of corresponding attention...
March 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28320083/xiaoaiping-combined-with-cisplatin-can-inhibit-proliferation-and-invasion-and-induce-cell-cycle-arrest-and-apoptosis-in-human-ovarian-cancer-cell-lines
#2
Ai-Wen Zheng, Ya-Qing Chen, Jing Fang, Ying-Li Zhang, Dong-Dong Jia
PURPOSE: The aim of the present study was utilizing Xiaoaiping as a single agent or combined with cisplatin to study its effect on the ovarian cancer cells (HO-8910 and HO-8910PM cells) in tumor cell proliferation, cell apoptosis, cell cycle distribution and cell invasion and migration. METHODS: Both HO-8910 and HO-8910PM cell lines were treated with Xiaoaiping injection, cisplatin or combination. Effects on the cell viability and apoptosis induction were estimated using the Cell counting Kit-8 assay and Annexin V-FITC/Propidium Iodide staining...
March 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319750/unfavorable-effect-of-levetiracetam-on-cultured-hippocampal-neurons-after-hyperthermic-injury
#3
Krzysztof Sendrowski, Piotr Sobaniec, Elżbieta Poskrobko, Małgorzata Rusak, Wojciech Sobaniec
BACKGROUND: The aim of this study was to examine the viability of neurons and the putative neuroprotective effects of second-generation antiepileptic drug, levetiracetam (LEV), on cultured hippocampal neurons injured by hyperthermia. METHODS: Primary cultures of rat's hippocampal neurons at 7day in vitro (DIV) were incubated in the presence or absence of LEV in varied concentrations under hyperthermic conditions. Cultures were heated in a temperature of 40°C for 24h or in a temperature of 41°C for 6h...
January 24, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28318943/synthesis-and-antitumor-evaluation-of-2-3-diarylbenzofuran-derivatives-on-hela-cells
#4
Guo-Xue He, Jing-Mei Yuan, Hai-Miao Zhu, Kai Wei, Ling-Yun Wang, Shi-Lin Kong, Dong-Liang Mo, Cheng-Xue Pan, Gui-Fa Su
2,2-Dihydroxyarylethanones, readily prepared from the commercially available aromatic ethyl ketones, were reacted with resorcinol, 3-methoxyphenol or 2-methoxyphenol in multi steps one-pot manner promoted by trifluoroacetic acid to furnish the 2,3-diarylbenzofuran derivatives in 22-95% yield. Sixteen targeted compounds were synthesized and characterized by (1)H NMR, (13)C NMR and HRMS. MTT assay indicated that most compounds possessed effectively inhibitory activities against the proliferation of HeLa cell...
March 7, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28318770/expression-of-cathepsin-s-in-bcg-converts-it-into-a-pro-apoptotic-and-highly-immunogenic-strain
#5
Alice Lau, Vijender Singh, Hafid Soualhine, Zakaria Hmama
BACKGROUND: BCG vaccine, introduced almost 100years ago, is the only option to prevent TB disease. It effectively protects newborns from meningeal TB but fails to prevent adult pulmonary TB. TB kills 1.3million people annually in areas where BCG vaccination is widely practiced. Thus, more effective TB vaccines are urgently needed. Others and we have shown that BCG mimics features of virulent M. tuberculosis, in particular attenuation of essential macrophage functions such as phagosome maturation and antigen presentation...
March 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28316179/-effects-and-related-mechanism-of-angiotensin-1-7-on-toll-like-receptor-4-mediated-oxidative-stress-in-human-umbilical-vein-endothelial-cells
#6
W F Yan, J J Xue, H Y Yang, B Liang, Z M Yang
Objective: To explore the role and related mechanisms of angiotensin-(1-7)(Ang-(1-7)) on Toll-like receptor 4 (TLR4) mediated oxidized low-density lipoprotein(ox-LDL)-induced oxidative stress in human umbilical vein endothelial cells (HUVECs). Methods: HUVECs were cultured in vitro and divided into six groups: the control group (normal medium), the ox-LDL group(treated with 75 mg/L ox-LDL), the ox-LDL+ Ang-(1-7) group (1 μmol/L Ang-(1-7) pretreated for 30 minutes, then intervened with 75 mg/L ox-LDL), the ox-LDL+ Ang-(1-7)+ A-779 group(1 μmol/L A-779 (Mas receptor) pretreated for 30 minutes, 1 μmol/L Ang-(1-7) pretreated for 30 minutes, then intervened with 75 mg/L ox-LDL), the ox-LDL+ A-779 group (1 μmol/L A-779 pretreated for 30 minutes, then intervened with 75 mg/L ox-LDL), the ox-LDL+ HTA125 group (10 μg/L HTA125 (TLR4-blocking antibody) pretreated for 30 minutes, then intervened with 75 mg/L ox-LDL )...
March 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28316022/suppression-of-inner-mitochondrial-membrane-peptidase-2-like-immp2l-gene-exacerbates-hypoxia-induced-neural-death-under-high-glucose-condition
#7
Yi Ma, Zijing Zhang, Zhirong Chen, Nina Ma, Shihui Sun, Jingwen Zhang, Xinli Ni, Jianzhong Zhang, P Andy Li
It is known that diabetes hyperglycemia enhances cerebral ischemia and reperfusion induced damage. We have previously shown that mutation of inner mitochondrial membrane peptidase 2-like (IMMP2L) increases brain damage caused by transient cerebral ischemia. In this study, we attempt to examine the impact of IMMP2L deficiency on an in vitro model that mimics the diabetic hypoxic conditions. Normal IMMP2L wild type and IMMP2L gene deleted HT22 cells were cultured. Hypoxia was induced under high glucose and acidic conditions with 4 h of oxygen deprivation...
March 18, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28316021/hemin-protects-against-oxygen-glucose-deprivation-induced-apoptosis-activation-via-neuroglobin-in-sh-sy5y-cells
#8
Yun-Jia Wang, Qian-Yi Peng, Song-Yun Deng, Cai-Xia Chen, Long Wu, Li Huang, Li-Na Zhang
This study aimed to investigate the mechanism underlying the neuroprotective effect of hemin in oxygen-glucose deprivation (OGD)-treated neurons. OGD-treated SH-SY5Y cells (human neuroblastoma cells) were used in the study. The cellular viability of SH-SY5Y cells was assessed by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and the cell apoptosis rate was determined by flow cytometry analysis with Annexin V-fluorescein isothiocyanate and propidium iodide staining with or without hemin pretreatment...
March 18, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28315776/cleistocalyx-nervosum-var-paniala-berry-fruit-protects-neurotoxicity-against-endoplasmic-reticulum-stress-induced-apoptosis
#9
Monruedee Sukprasansap, Pithi Chanvorachote, Tewin Tencomnao
Oxidative and endoplasmic reticulum (ER) stresses cause neuronal damage leading to neurodegenerative disorders. Cleistocalyx nervosum var. paniala (CNP) berry fruit has been shown to possess powerful antioxidant properties. Here, we investigated the neuroprotective effect of CNP extract against glutamate-mediated oxidative/ER stress-induced cell death in mouse hippocampal neuronal HT22 cells. CNP extract was clarified for its radical scavenging activities, total phenolic and anthocyanin contents. The key anthocyanin cyanidin-3-glucoside was used as a marker to standardize the extract used in the study...
March 15, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28315296/annexin-a6-controls-neuronal-membrane-dynamics-throughout-chick-cranial-sensory-gangliogenesis
#10
Ankita Shah, Andrew T Schiffmacher, Lisa A Taneyhill
Cranial sensory ganglia are components of the peripheral nervous system that possess a significant somatosensory role and include neurons within the trigeminal and epibranchial nerve bundles. Although it is well established that these ganglia arise from interactions between neural crest and neurogenic placode cells, the molecular basis of ganglia assembly is still poorly understood. Members of the Annexin protein superfamily play key roles in sensory nervous system development throughout metazoans. Annexin A6 is expressed in chick trigeminal and epibranchial placode cell-derived neuroblasts and neurons, but its function in cranial ganglia formation has not been elucidated...
March 14, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28306533/ros-mediated-induction-of-apoptosis-by-benzoquinone-embelin-in-human-colon-adenocarcinoma-cells-ht-29
#11
Kodandaram Sumalatha, Mohan Gowda, Sreepriya Meenakshisundaram
Background Embelin is a benzoquinone reported to possess anticancer activity in several in vivo and in vitro models of carcinogenesis, especially hematopoietic and prostate malignancy. A detailed investigation on the influence of embelin on epithelial malignancy model system, especially colon adenocarcinoma, is lacking. The objective of the current study is to investigate the antiproliferative, antiinvasive and proapoptotic potential of embelin on colon adenocarcinoma cell line HT-29. Methods The effect of embelin (35 µg/mL for 24 h) on cell proliferation was assessed by Sulforhodamine B assay and bromodeoxyuridine incorporation test, antiinvasive effect by Boyden chamber assay and scratch assay...
March 17, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28304236/increased-spontaneous-programmed-cell-death-is-associated-with-impaired-cytokine-secretion-in-peripheral-blood-mononuclear-cells-from-hepatitis-c-virus-positive-patients
#12
Abdulkarim Alhetheel, Ahmed Albarrag, Zahid Shakoor, Khalid Alswat, Ayman Abdo, Waleed Al-Hamoudi, Suliman Alomar
Peripheral blood mononuclear cells (PBMCs) play a critical role in clearing hepatitis C virus (HCV). PBMC defects have been linked with HCV infection; however, the underlying mechanisms remain obscure. We hypothesized that PBMCs of HCV-infected patients are more susceptible to programmed cell death (PCD), and are therefore unable to clear HCV. We compared spontaneous PBMC PCD and cytokine [interleukin (IL)-1, -6, -8, -10, and -12] secretion between untreated (naive) HCV(+) and treated [sustained responder (SR)] patients with HCV, and HCV(-) healthy controls...
March 17, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28300835/geranylgeranyl-diphosphate-synthase-inhibition-induces-apoptosis-that-is-dependent-upon-ggpp-depletion-erk-phosphorylation-and-caspase-activation
#13
Sherry S Agabiti, Jin Li, Andrew J Wiemer
Bisphosphonates are diphosphate analogs that inhibit the intermediate enzymes of the mevalonate pathway. Here, we compared the effects of a farnesyl diphosphate synthase inhibitor, zoledronate, and a geranylgeranyl diphosphate synthase (GGDPS) inhibitor, digeranyl bisphosphonate (DGBP), on lymphocytic leukemia cell proliferation and apoptosis. Both zoledronate and DGBP inhibited proliferation with DGBP doing so more potently. DGBP was markedly less toxic than zoledronate toward the viability of healthy human peripheral blood mononuclear cells...
March 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28300427/annexin-a1-as-a-target-for-managing-murine-pristane-induced-systemic-lupus-erythematosus
#14
Nikolina Mihaylova, Silviya Bradyanova, Petroslav Chipinski, Melinda Herbáth, Stela Chausheva, Dobroslav Kyurkchiev, József Prechl, Andrey I Tchorbanov
Systemic lupus erythematosus (SLE) is a polygenic pathological disorder which involves multiple organs. Self-specific B cells play a main role in the lupus pathogenesis by generating autoantibodies as well as by serving as important autoantigen-presenting cells. Autoreactive T lymphocytes, on the other hand, are responsible for B cell activation and proliferation, and cytokine production. Therefore, both factors promote the idea that a down-modulation of activated self-reactive T and B cells involved in the pathogenic immune response is a reasonable approach for SLE therapy...
March 16, 2017: Autoimmunity
https://www.readbyqxmd.com/read/28296810/activation-associated-accelerated-apoptosis-of-memory-b-cells-in-critically-ill-patients-with-sepsis
#15
Manu Shankar-Hari, David Fear, Paul Lavender, Tracey Mare, Richard Beale, Chad Swanson, Mervyn Singer, Jo Spencer
OBJECTIVE: Sepsis is life-threatening organ dysfunction due to dysregulated host responses to infection. Current knowledge of human B-cell alterations in sepsis is sparse. We tested the hypothesis that B-cell loss in sepsis involves distinct subpopulations of B cells and investigated mechanisms of B-cell depletion. DESIGN: Prospective cohort study. SETTING: Critical care units. PATIENTS: Adult sepsis patients without any documented immune comorbidity...
March 14, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28296042/nickel-sulfate-induced-apoptosis-via-activating-ros-dependent-mitochondria-and-endoplasmic-reticulum-stress-pathways-in-rat-leydig-cells
#16
Lingyue Zou, Li Su, Yifan Sun, Aijie Han, Xuhong Chang, An Zhu, Fangfang Liu, Jin Li, Yingbiao Sun
Nickel can induce apoptosis of testicular Leydig cells in mice, whereas the mechanisms remain unclear. In this study, we investigated the role of nickel-induced reactive oxygen species (ROS) generation in mitochondria and endoplasmic reticulum stress (ERS) mediated apoptosis pathways in rat Leydig cells. Fluorescent DCF and Annexin-V FITC/PI staining were performed to measure the production of ROS and apoptosis in Leydig cells. RT-qPCR and Western blot were conducted to analyze the key genes and proteins involved in mitochondria and ERS apoptotic pathways...
March 15, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28289414/podophyllotoxin-and-rutin-modulates-ionizing-radiation-induced-oxidative-stress-and-apoptotic-cell-death-in-mice-bone-marrow-and-spleen
#17
Abhinav Singh, M H Yashavarddhan, Bhargab Kalita, Rajiv Ranjan, Sania Bajaj, Hridayesh Prakash, Manju Lata Gupta
The present study is aimed to investigate the radioprotective efficacy of G-003M (combination of podophyllotoxin and rutin) against gamma radiation-induced oxidative stress and subsequent cell death in mice bone marrow and spleen. Prophylactic administration of G-003M (-1 h) rendered more than 85% survival in mice exposed to 9 Gy (lethal dose) with dose reduction factor of 1.26. G-003M pretreated mice demonstrated significantly reduced level of reactive oxygen species, membrane lipid peroxidation, and retained glutathione level...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28289158/annexin-a1-is-involved-in-the-resolution-of-inflammatory-responses-during-leishmania-braziliensis-infection
#18
Leandro G Oliveira, Míriam C Souza-Testasicca, Juliana P Vago, Amanda Braga Figueiredo, Adriana M C Canavaci, Luiza Oliveira Perucci, Tatiana P Teixeira Ferreira, Eduardo A F Coelho, Denise Utsch Gonçalves, Manoel Otávio C Rocha, Patrícia M R E Silva, Cláudia N Ferreira, Celso Queiroz-Junior, Lirlândia P Sousa, Ana Paula Fernandes
Leishmaniases are diseases caused by several Leishmania species. Leishmania (Viannia) braziliensis can cause localized cutaneous leishmaniasis (LCL), which heals spontaneously, or mucosal leishmaniasis (ML), characterized by chronic and intense inflammation and scanty parasitism. Annexin A1 (AnxA1) is a protein involved in modulation and resolution of inflammation through multiple mechanisms. In the present study, the role of AnxA1 was investigated in L. braziliensis-infected BALB/c mice. AnxA1 levels increased at the peak of tissue lesion and parasitism in infected mice...
March 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28288630/overexpression-of-g-protein-coupled-receptor-gpr87-promotes-pancreatic-cancer-aggressiveness-and-activates-nf-%C3%AE%C2%BAb-signaling-pathway
#19
Li Wang, Wei Zhou, Yunfeng Zhong, Yongbao Huo, Ping Fan, Sudong Zhan, Jun Xiao, Xin Jin, Shanmiao Gou, Tao Yin, Heshui Wu, Tao Liu
BACKGROUND: Pancreatic cancer is a highly lethal disease and has the worst prognosis of any major malignancy. G protein-coupled receptor GPR87 is reported to be overexpressed in multiple cancers. The clinical significance and biological role of GPR87 in pancreatic cancer, however, remain to be established. METHODS: GPR87 expression in pancreatic cancer cell lines, paired patient tissues were determined using western blotting and Real-time PCR. Ninety-six human pancreatic cancer tissue samples were analyzed by immunochemistry (IHC) to investigate the association between GPR87 expression and the clinicopathological characteristics of pancreatic cancer...
March 14, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28287444/bufalin-induces-apoptosis-of-human-osteosarcoma-u-2-os-cells-through-endoplasmic-reticulum-stress-caspase-and-mitochondria-dependent-signaling-pathways
#20
Ching-Hsiao Lee, Yung-Luen Shih, Mei-Hui Lee, Man-Kuan Au, Yung-Liang Chen, Hsu-Feng Lu, Jing-Gung Chung
Bone cancer is one of the cancer-related diseases, and there are increased numbers of patients with bone cancer worldwide. Therefore the efficacy of treatment of bone cancer is considered extremely vital. Bufalin has been showed to have biological activities including anticancer activities in vitro and in vivo. However, the exact associated mechanisms for bufalin induced apoptosis in human bone cancer cells are still unclear. In the present study, we investigated the effect of bufalin on the cytotoxic effects in U-2 OS human osteosarcoma cells...
March 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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