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Survivin, apoptosis

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https://www.readbyqxmd.com/read/29164887/pterostilbene-enhances-trail-induced-apoptosis-through-the-induction-of-death-receptors-and-downregulation-of-cell-survival-proteins-in-trail-resistance-triple-negative-breast-cancer-cells
#1
Chao-Ming Hung, Liang-Chih Liu, Chi-Tang Ho, Ying-Chao Lin, Tzong-Der Way
Tumor necrosis factor-related apoptosis-induced ligand (TRAIL) is nontoxic to normal cells and preferentially cytotoxic to cancer cells. However, recent data suggest that malignant breast cancer cells tend to be resistant to TRAIL. Pterostilbene (PTER), a natural dimethylated analog of resveratrol, is known to have diverse pharmacologic activities, including anticancer properties. In the present study, we investigated whether PTER affects TRAIL-induced apoptosis and its mechanism in TRAIL-resistant triple negative breast cancer (TNBC) cells...
November 22, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29164556/the-effect-of-mir-224-down-regulation-on-sw80-cell-proliferation-and-apoptosis-and-weakening-of-adm-drug-resistance
#2
C-Q Liang, Y-M Fu, Z-Y Liu, B-R Xing, Y Jin, J-L Huang
OBJECTIVE: Glycogen synthase kinase-3β (GSK-3β) can phosphorylate and degrade β-catenin, and negatively regulates Wnt/β-catenin signal pathway. MiR-224 up-regulation is associated with colorectal cancer (CRC). Bioinformatics analysis showed complementary binding sites between miR-224 and GSK-3β. This study investigated if miR-224 plays a role in mediating GSK-3β expression, Wnt/β-catenin pathway activity, CRC cell proliferation, apoptosis as well as drug sensitivity of Adriamycin (ADM)...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29163810/myeloid-ecotropic-viral-integration-site-1-inhibits-cell-proliferation-invasion-or-migration-in-human-gastric-cancer
#3
Fei Song, Hong Wang, Yingying Wang
Myeloid ecotropic viral integration site 1 (MEIS1) has been identified to be a potential tumor suppressor in some cancers. However, the mechanisms underlying MEIS1-induced cancer development and progression were not clear. Here, we investigated the expression and role of MEIS1 in gastric cancer. In vivo, we analyzed tumor growth using nude mice model. In the present study, MEIS1 expression was obviously decreased in GC cell lines compared with that in normal gastric cell lines (all p<0.001). MEIS1 overexpression inhibited cell proliferation and G1/S transition accompanied by decreased Cyclin D1 and Cyclin A expression...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29160903/smoking-cessation-leads-to-changes-in-survivin-expression-in-oral-mucosa
#4
Celina Faig Lima, Erica Crastechini, Nathalia Curto Dos Santos, Ana Carolina Prado Ribeiro, Thais Bianca Brandão, Félix Cristiano Ferreira de Castro, Jaqueline Scholz Issa, Janete Dias Almeida
BACKGROUND: Survivin is an inhibitor protein of apoptosis and play a role in oral carcinogenesis mechanism. METHODS: This aim of this study was to evaluate the effect of smoking in survivin expression of oral mucosa of chronic smokers with and without oral squamous cell carcinoma (OSCC). The study was composed of three groups: Group 1 - 26 patients smoking more than 20 cigarettes/day/10 years without either history of oral malignant neoplasia or visible clinical signs in the examined site; Group 2 - 26 patients with OSCC; Group 3 - 22 patients surgically treated for OSCC for at least 1 month...
November 21, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29158846/subcellular-localization-of-survivin-determines-its-function-in-cardiomyocytes
#5
Tien-Jui Tsang, Ying-Chang Hsueh, Erika I Wei, David J Lundy, Bill Cheng, You-Tzung Chen, Shoei-Shen Wang, Patrick C H Hsieh
Rationale: Reducing cardiomyocyte death and enhancing their proliferation after myocardial infarction is perhaps the single largest challenge for cardiac tissue regeneration. Survivin (SVV) is the smallest member of the inhibitor of apoptosis (IAP) family but plays two important roles; inhibiting caspase-9 activation in the intrinsic apoptosis pathway, and regulating microtubule dynamics and chromosome segregation during cell division. Genetic depletion of cardiac SVV leads to incomplete cardiomyocyte division and abnormal heart development...
2017: Theranostics
https://www.readbyqxmd.com/read/29156780/baicalein-inhibits-progression-of-osteosarcoma-cells-through-inactivation-of-the-wnt-%C3%AE-catenin-signaling-pathway
#6
Guo Dai, Di Zheng, Qianliang Wang, Jian Yang, Gaiwei Liu, Qi Song, Xiangran Sun, Chunjie Tao, Qingzhu Hu, Tian Gao, Ling Yu, Weichun Guo
Osteosarcoma is a very common type of malignant bone tumor in children and young adults and aberrant activation of Wnt/β-catenin signaling pathway has been discovered in osteosarcoma. The traditional Chinese medicine baicalein was proved to have anti-proliferative and anti-metastatic properties in osteosarcoma, but the mechanism remained poorly understood. In the present study, we assessed the effects of baicalein on osteosarcoma and detected the potential molecular mechanism. We found that baicalein significantly suppressed the proliferation of osteosarcoma cells in a concentration- and time-dependent manner...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29155234/survivin-and-autoimmunity-the-ins-and-outs
#7
REVIEW
Hamidreza Ebrahimiyan, Saeed Aslani, Nima Rezaei, Ahmadreza Jamshidi, Mahdi Mahmoudi
Autoimmunity is a status that immune mechanisms react against self-structure. The immune mechanisms, including cellular and molecular elements have been developed to immune body against foreign invades. Multiple factors such as genetic and epigenetic background, hormonal status, microbiome, and other factors can cause launching the autoreactive responses, in which the immune tolerance breaks and immune mechanisms are against self-antigens. Apoptosis is one of the important mechanisms in maintaining the tolerance and eliminating the autoreactive lymphocyte clones...
November 16, 2017: Immunology Letters
https://www.readbyqxmd.com/read/29152142/antiproliferative-and-apoptotic-effects-of-xanthohumol-in-cholangiocarcinoma
#8
Daniel Walden, Selvi Kunnimalaiyaan, Kevin Sokolowski, T Gamblin Clark, Muthusamy Kunnimalaiyaan
Cholangiocarcinoma remains the second most prevalent hepatic neoplasm in the United States with a 5-year survival rate of less than 10%. Currently, no systemic therapy has demonstrated efficacy. Therefore, an urgent need for the identification of molecularly targeted compound(s) remains. The Notch signaling pathway has been shown to be dysregulated in cholangiocarcinoma, exhibiting hyperactivity while also possibly mediating chemotherapeutic resistance. We analyzed the effects of xanthohumol, a prenylated chalcone, on cholangiocarcinoma proliferation utilizing human cholangiocarcinoma cell lines CCLP1, SG-231 and CC-SW-1 while gaining insight into the associated mechanism...
October 20, 2017: Oncotarget
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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