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Apoptosis survivin

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https://www.readbyqxmd.com/read/29144199/effect-of-high-hydrostatic-pressure-applied-before-cryopreservation-on-the-survival-rate-and-quality-of-porcine-mesenchymal-stem-cells-after-thawing
#1
Joanna Romanek, Jolanta Opiela, Daniel Lipiński, Zdzisław Smorąg
The aim of the present study was to examine the effects of varied high hydrostatic pressure (HHP) values on survival rate, proliferation rate, cell multipotency (transcript expression of SOX2, C-MYC, and REX1) and apoptosis (expression of phosphatidylserine (PS), SURVIVIN at the RNA level and BAX at the protein level) of porcine mesenchymal stem cells (MSCs). MSCs were isolated from porcine bone marrow and cultured in vitro. Before cryopreservation and storage in liquid nitrogen, MSCs were subjected to HHP at the varied pressures of 20, 30, 40, 50, or 60 MPa for 1 h at 24°C...
November 16, 2017: Animal Biotechnology
https://www.readbyqxmd.com/read/29131252/yap1-up-regulation-inhibits-apoptosis-of-aortic-dissection-vascular-smooth-muscle-cells
#2
T Liu, J Xu, J-L Guo, C-Y Lin, W-M Luo, Y Yuan, H Liu, J Zhang
OBJECTIVE: Elevated apoptosis of vascular smooth muscle cell (VSMC) is correlated with the occurrence of aortic dissection (AD). Yes-associated protein 1 (YAP1) is the major effector in Hippo-YAP signal pathway, which facilitates cell proliferation and suppressing apoptosis. Several studies have been performed regarding the relationship between YAP1 and AD pathogenesis. This study established the AD rat model to investigate possible roles of YAP1 in regulating VSMC apoptosis and AD pathogenesis...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29130109/deubiquitinase-usp9x-promotes-cell-migration-invasion-and-inhibits-apoptosis-of-human-pancreatic-cancer
#3
Li Liu, Dan Yao, Pengbo Zhang, Weichao Ding, Xiuzhong Zhang, Chong Zhang, Shuai Gong, Yi Zhang, Jike Wang, Ting Sun, Zeqiang Ren
Ubiquitin specific peptidase 9, X-linked (USP9X), a significant regulatory protease in protein ubiquitination, has been proven to act as a proto-oncogene in several types of cancers, such as cervix, colon, breast, brain and lung cancers. The prognosis of patients with pancreatic ductal adenocarcinoma (PDAC) is extremely poor due to its high invasive and metastatic abilities. Nevertheless, whether USP9X acts as a proto-oncogene or a tumor-suppressor gene in PDAC is controversial and the mechanism of metastasis remains unknown...
December 2017: Oncology Reports
https://www.readbyqxmd.com/read/29130099/upregulation-of-mir-542-3p-inhibits-the-growth-and-invasion-of-human-colon-cancer-cells-through-pi3k-akt-survivin-signaling
#4
Chuang Yang, Ming-Huan Wang, Jun-De Zhou, Qiang Chi
The present study was designed to assess the expression of microRNA-542-3p (miR-542-3p) in human colon cancer and investigate the possible molecular mechanisms underlying the effect of miR-542-3p on the growth and invasion of colon cancer cells. We found that miR-542-3p expression was downregulated in colon cancer patient tissues, compared with that observed in the control group. Silencing of miR‑542-3p expression significantly promoted cell viability and inhibited apoptosis. In addition, overexpression of miR-542-3p significantly reduced cell viability and promoted apoptosis in colon cancer cells...
December 2017: Oncology Reports
https://www.readbyqxmd.com/read/29115645/combined-18f-fdg%C3%A2-pet-ct-imaging-and-a-gastric-orthotopic-xenograft-model-in-nude-mice-are-used-to-evaluate-the-efficacy-of-glycolysis-targeted-therapy
#5
Ting-An Wang, Shu-Lin Xian, Xing-Yu Guo, Xiao-Dong Zhang, Yun-Fei Lu
As discovered by Warburg 80 years ago most malignant cells rely more on glycolysis than normal cells. The high rate of glycolysis provides faster ATP production and greater lactic acid for tumor proliferation and invasion, thus indicating a potential target in anticancer therapy. Our previous studies demonstrated that 3-bromopyruvate (3-BrPA) and sodium citrate (SCT) inhibited tumor cell proliferation in vitro. However, the underlying mechanisms still warrant further investigation. In the present study, we employed the human SGC-7901 gastric cancer cell line, built an orthotopic xenograft model in nude mice, examined the treatment response by 18F-FDG PET/CT and investigated the mechanisms of 3-BrPA and SCT in vivo...
October 31, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29115580/overexpression-of-ccdc34-in-colorectal-cancer-and-its-involvement-in-tumor-growth-apoptosis-and-invasion
#6
Wei Geng, Wei Liang, Yanan Fan, Zhibin Ye, Lixiao Zhang
It has been previously reported that increased expression of coiled‑coil domain containing 34 (CCDC34), a member of the CCDCs family, may promote the proliferation and invasion of bladder cancer cells. However, its role in colorectal cancer (CRC) remains unclear. The present study investigated CCDC34 expression in CRC tissues and determined the association between CCDC34 expression and biological characteristics in patients with CRC. Additionally, the variation of cell activity, apoptosis, invasion and associated mechanisms were evaluated following CCDC34 inhibition in SW620 cells with small interfering RNA (siRNA)...
October 24, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29115423/apoptosis-in-human-liver-carcinoma-caused-by-gold-nanoparticles-in-combination-with-carvedilol-is-mediated-via-modulation-of-mapk-akt-mtor-pathway-and-egfr-faad-proteins
#7
Raimundo F De Araújo, Jonas B Pessoa, Luis J Cruz, Alan B Chan, Emílio De Castro Miguel, Rômulo S Cavalcante, Gerly Anne C Brito, Heloiza Fernada O Silva, Luiz H S Gasparotto, Paulo M M Guedes, Aurigena A Araújo
In cancers, apoptosis signaling pathways and cell survival and growth pathways responsible for resistance to conventional treatments, such as Pi3K/Akt/mTOR and mitogen-activated protein kinase (MAPK) become dysregulated. Recently, alternative treatments to promote tumor cell death have become important. The present study reports on the antitumor and cytoprotective action of gold nanoparticles (GNPs) and carvedilol in combination and in isolated application. Apoptosis was analyzed by FITC/propidium iodide staining flow cytometry; caspase-3, caspase-8, Bcl-2 and MAPK/ERK activity by immunofluorescence microscopy; gene expression of proteins related to cell death as Akt, mTOR, EGFR, MDR1, survivin, FADD and Apaf, by the real-time PCR; and western blot analysis for MAPK/ERK, Akt and mTOR...
October 27, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29113504/enhancement-of-chemosensitivity-by-simultaneously-silencing-of-mcl-1-and-survivin-genes-using-small-interfering-rna-in-human-myelomonocytic-leukaemia
#8
Mahdi Jafarlou, Dariush Shanehbandi, Parvin Dehghan, Behzad Mansoori, F Othman, Behzad Baradaran
Acute myeloid leukaemia (AML) is a genetically heterogeneous, severe and rapidly progressing disease triggered by blocking granulocyte or monocyte differentiation and maturation. Overexpression of myeloid cell leukaemia-1 (Mcl-1) and Survivin is associated with drug resistance, tumour progression and inhibition of apoptotic mechanisms in leukaemia and several cancers. In the present study, we examined the combined effect of etoposide and dual siRNA-mediated silencing of Mcl-1 and Survivin on U-937 AML cells...
November 7, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29113228/intron-specific-shrna-mediated-downregulation-of-survivin-and-promotion-of-apoptosis-in-hela-cells
#9
Yue-Li Wang, Xin Shao, Fa Wang, Liang Zeng, Liang Hu, Shi-Quan Cui, Gan Hou, Di-Nan Huang
Overexpression of the survivin gene contributes to tumorigenesis; it has been recognized as an important target for cancer therapy. In the present study, survivin expression was suppressed using recombinant plasmid mediated short hairpin RNAs (shRNAs) that were constructed to target exonic or intronic sequences of the survivin gene. In addition, a negative control shRNA was constructed. HeLa cells were transfected with specific shRNA constructs and the blocking efficiency of each shRNA was assessed at the mRNA and protein levels; and the five shRNA constructs with higher blocking efficiency were selected...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29111786/active-hexose-correlated-compound-ahcc-inhibits-the-proliferation-of-ovarian-cancer-cells-by-suppressing-signal-transducer-and-activator-of-transcription-3-stat3-activation
#10
Jin Young Choi, Seul Lee, Sun-Mi Yun, Dong Hoon Suh, Kidong Kim, Jae Hong No, Eun-Hwan Jeong, Yong Beom Kim
The purpose of this study was to investigate the antiproliferative effect of active hexose correlated compound (AHCC), derived from basidiomycete mushroom culture, on ovarian cancer cell lines. An in vitro growth inhibition assay was performed using AHCC in ovarian cancer cell lines. Western blotting was performed to investigate the mechanism of the observed antiproliferative effect of AHCC. We identified that ovarian cancer cell viability was significantly reduced through treatment with AHCC compared to that in the control...
November 7, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/29111036/gabab-receptor-ligand-directed-trimethyl-chitosan-tripolyphosphate-nanoparticles-and-their-pmdi-formulation-for-survivin-sirna-pulmonary-delivery
#11
Suhui Ni, Yun Liu, Yue Tang, Jing Chen, Shuhan Li, Ji Pu, Lidong Han
The effect of gene silencing by survivin siRNA (siSurvivin) on the proliferation and apoptosis of lung tumor has been attracted more interest. GABAB receptor ligand-directed nanoparticles consisting of baclofen functionalized trimethyl chitosan (Bac-TMC) as polymeric carriers, tripolyphosphate (TPP) as ionic crosslinker, and siSurvivin as therapeutic genes, were designed to enhance the survivin gene silencing. GABAB receptor agonist baclofen (Bac) was initially introduced into TMC as a novel ligand. This Bac-TMC/TPP nanoparticles increased the uptake of survivin siRNA through the interaction with GABAB receptor, further resulted in efficient cell apoptosis and gene silencing...
January 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29109763/survivin-and-xiap-expression-in-distinct-tumor-compartments-of-surgically-resected-gastric-cancer-xiap-as-a-prognostic-marker-in-diffuse-and-mixed-type-adenocarcinomas
#12
Levent Dizdar, Monika Tomczak, Thomas A Werner, Sami A Safi, Jasmin C Riemer, Pablo E Verde, Nikolas H Stoecklein, Wolfram T Knoefel, Andreas Krieg
There is considerable evidence that the inhibitor of apoptosis protein (IAP) family serves a role in tumorigenesis. The most studied IAP family members, survivin and X-linked inhibitor of apoptosis (XIAP), have been demonstrated to serve as biomarkers in distinct tumor entities. Thus, the present study aimed to investigate the expression levels of both IAPs in the tumor center, invasion front and lymph node metastases of surgically resected gastric cancer (GC) specimens. Tissue microarrays containing samples from 201 primary GCs were analyzed...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29100327/phosphatidylinositol-3-kinase-pi3k%C3%AE-akt-axis-blockade-with-taselisib-or-ipatasertib-enhances-the-efficacy-of-anti-microtubule-drugs-in-human-breast-cancer-cells
#13
Floriana Morgillo, Carminia Maria Della Corte, Anna Diana, Concetta di Mauro, Vincenza Ciaramella, Giusi Barra, Valentina Belli, Elisena Franzese, Roberto Bianco, Evaristo Maiello, Ferdinando De Vita, Fortunato Ciardiello, Michele Orditura
Purpose: The Phosphatidylinositol 3-kinase (PI3Ks) pathway is commonly altereted in breast cancer patients, but its role is still unclear. Taselisib, a mutant PI3Kα selective inhibitor, and ipatasertib, an AKT inhibitor, are currently under investigation in clinical trials in combination with paclitaxel or hormonal therapies in breast cancer. The aim of this study was to evaluate if PI3K or AKT inhibition can prevent resistance to chemotherapy and potentiate its efficacy. Experimental design: The efficacy of combined treatment of ipatasertib and taselisib plus vinorelbine or paclitaxel or eribulin was evaluated in vitro on human breast cancer cells (with different expression profile of hormonal receptors, HER2, and of PI3Ka mutation) on cell survival by using MTT (3,(4,5-dimethylthiazol-2)2,5 difeniltetrazolium bromide) and colony forming assays on cell apoptosis by flow-cytometry analysis...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29098505/downregulation-of-survivin-gene-expression-affects-ionizing-radiation-resistance-of-human-t98-glioma-cells
#14
Jicheng Li, Yong Han, Dai Zhou, Youxin Zhou, Ming Ye, Hangzhou Wang, Ziwei Du
Survivin is a tumor-associated gene, which has been detected in a wide variety of human tumors. Previous research has shown that Survivin can affect hepatoma carcinoma cell radiosensitivity. However, little is known about the role of Survivin in ionizing radiation resistance in glioma cells. In this study, we aimed to identify the effects of Survivin on ionizing radiation resistance in glioma cell line T98. Our results showed that downregulation of Survivin gene expression and ionizing irradiation could both inhibit T98 cell proliferation by assays in vitro including CCK-8 and immunohistochemistry...
November 2, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/29098021/pyrrolidine-dithiocarbamate-sensitizes-u251-brain-glioma-cells-to-temozolomide-via-downregulation-of-mgmt-and-bcl-xl
#15
Jun-Hai Tang, Guo-Hao Huang, Ke-Jie Mou, Eric Erquan Zhang, Ningning Li, Lei Du, Xiao-Peng Zhu, Ling Chen, Hui Yang, Ke-Bin Zhang, Sheng-Qing Lv
The current study investigated the effect of pyrrolidine dithiocarbamate (PDTC) on the proliferation, apoptosis, cell cycle and sensitivity to temozolomide (TMZ) of the U251 glioma cell line. Proliferation, apoptosis and cell cycle analysis of U251 cells following treatment with PDTC and TMZ was determined by an MTT assay and flow cytometry, respectively. The mRNA and protein expression levels of O-6-methylguanine-DNA methyltransferase (MGMT), B-cell lymphoma extra-large (BCL-XL) and survivin were further determined by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting analysis...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29091885/lipid-rafts-disruption-induces-apoptosis-by-attenuating-expression-of-lrp6-and-survivin-in-triple-negative-breast-cancer
#16
Anil Kumar Badana, Madhuri Chintala, Murali Mohan Gavara, Shailender Naik, Seema Kumari, Vijaya Rachel Kappala, Bhaskar Reddy Iska, Rama Rao Malla
Triple negative breast cancer is a clinically challenging subtype due to lack of biomarker for rational targeted therapy. Lipid rafts are cholesterol enriched rigid platforms, which colocalize signalling molecules of cancer progression. This study explores the effect of lipid rafts disruption by cholesterol depleting agent, MβCD on induction of apoptosis and expression of WNT receptor LRP6, survivin and common apoptotic markers in TNBC cell lines. The in vitro effect of lipid rafts disruption on viability, single cell reproductive ability, proliferation and migration were evaluated by MTT, clonogenic, BrdU incorporation and wound scratch assays, respectively...
October 27, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29089085/-the-positive-relationship-between-survivin-and-stat2-up-expressed-in-skin-lesions-of-psoriasis-vulgaris
#17
Hao Wang, Liwei Ran, Ke Hui, Xinyang Wang, Yan Zheng
Objective To investigate the expressions of the inhibitor of apoptosis protein survivin and signal transducer and activator of transcription 2 (STAT2) in the tissues of the plaque-like lesions of patients with psoriasis vulgaris (PV) in the progressive stage and discuss their correlation. Methods We collected the plaque-like lesion samples and non-lesion samples from 22 PV patients and the normal skin sample from 18 healthy controls. Real-time quantitative PCR was used to evaluate the mRNA levels of survivin and STAT2 in these samples...
September 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/29081608/molecular-docking-analysis-of-aplysin-analogs-targeting-survivin-protein
#18
Eram Shakeel, Salman Akhtar, Mohd Kalim Ahmad Khan, Mohtashim Lohani, Jamal M Arif, Mohd Haris Siddiqui
Survivin (IAP proteins) remains an important target for anticancer drug development as it is reported to be over-expressed in tumor cells to enhance resistance to apoptotic stimuli. The study focuses on virtual screening of marine compounds inhibiting survivin, a multifunctional protein, using a computational approach. Structures of compounds were prepared using ChemDraw Ultra 10. Software and converted into its 3D PDB structure and its energy was minimized using Discovery Studio client 2.5. The target protein, survivin was retrieved from RCSB PDB...
2017: Bioinformation
https://www.readbyqxmd.com/read/29075192/rumex-dentatus-inhibits-cell-proliferation-arrests-cell-cycle-and-induces-apoptosis-in-mda-mb-231-cells-through-suppression-of-the-nf-%C3%AE%C2%BAb-pathway
#19
Riffat Batool, Ejaz Aziz, Benny K-H Tan, Tariq Mahmood
Background:Rumex dentatus, commonly known as tooth docked, is widely used in traditional system of medicines. Although it is well reported for its biological activities and medicinal value, only few studies have been carried out to assess its anticancer potential. Purpose: This study seeks to evaluate the anticancer activity of leaf extracts of R. dentatus against breast cancer MDA-MB-231 cell line, a triple negative human breast cancer cell line with invasive properties and to identify the molecular targets underlying its mechanism of action...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29070784/kaempferol-sensitizes-human-ovarian-cancer-cells-ovcar-3-and-skov-3-to-tumor-necrosis-factor-related-apoptosis-inducing-ligand-trail-induced-apoptosis-via-jnk-erk-chop-pathway-and-up-regulation-of-death-receptors-4-and-5
#20
Yingmei Zhao, Binqiang Tian, Yong Wang, Haiying Ding
BACKGROUND Ovarian cancer is the most common gynecological malignancies in women, with high mortality rates worldwide. Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a member of the tumor necrosis factor (TNF) superfamily which preferentially induces apoptosis of cancer cells. However, acquired resistance to TRAIL hampers its therapeutic application. Identification of compounds that sensitize cancer cells to TRAIL is vital in combating resistance to TRAIL. The effect of kaempferol, a flavonoid enhancing TRAIL-induced apoptosis in ovarian cancer cells, was investigated in this study...
October 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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