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Apoptosis survivin

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https://www.readbyqxmd.com/read/27930382/ym155-induces-apoptosis-in-p53-deficient-t-acute-lymphoblastic-leukemia-cells-independent-of-survivin-inhibition
#1
Leilane Sales, Graziella R de Sousa, Guilherme Á Ferreira-Silva, Angel M Castro-Gamero, Marisa Ionta, Jaqueline C de Oliveira
T-acute lymphoblastic leukemia (T-ALL) is an aggressive hematological cancer that arises from the malignant transformation of T-cell progenitors. Despite the significant progress in current treatment, challenges remain the lifelong morbidity after current chemotherapy regimens and postrelapse survival. In addition, patients with T-ALL have inferior outcomes compared with those with B-cell precursor; consequently, novel therapeutic approaches are still necessary to improve the outcome in this cohort. YM155 is an imidazolium derivative originally discovered as a suppressant of survivin expression...
December 7, 2016: Anti-cancer Drugs
https://www.readbyqxmd.com/read/27923747/ibulocydine-sensitizes-human-hepatocellular-carcinoma-cells-to-trail-induced-apoptosis-via-calpain-mediated-bax-cleavage
#2
Seok Soon Park, Eunjin Jwa, Seol Hwa Shin, Eun Jin Ju, Intae Park, Jhang Ho Pak, Jung Jin Hwang, Dong-Hyung Cho, B Moon Kim, Sung-Bae Kim, Jung Shin Lee, Si Yeol Song, Seong-Yun Jeong, Eun Kyung Choi
Tumor necrosis factor-related apoptosis-induced ligand (TRAIL) induces apoptosis selectively in cancer cells without affecting the majority of normal human cells. However, hepatocellular carcinoma (HCC) cells often display resistance to TRAIL-induced apoptosis. Ibulocydine (IB) is an isobutyrate ester pro-drug of a novel synthetic Cdk inhibitor that targets Cdk7 and Cdk9. In this study, we show that treatment with subtoxic doses of IB in combination with TRAIL displays potent cytotoxicity in TRAIL-resistant human HCC cells...
December 3, 2016: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/27922075/cancer-associated-fibroblasts-treated-with-cisplatin-facilitates-chemoresistance-of-lung-adenocarcinoma-through-il-11-il-11r-stat3-signaling-pathway
#3
Leilei Tao, Guichun Huang, Rui Wang, Yan Pan, Zhenyue He, Xiaoyuan Chu, Haizhu Song, Longbang Chen
Cancer-associated fibroblasts (CAF) are recognized as one of the key determinants in the malignant progression of lung adenocarcinoma. And its contributions to chemoresistance acquisition of lung cancer has raised more and more attention. In our study, cancer associated fibroblasts treated with cisplatin conferred chemoresistance to lung cancer cells. Meanwhile, Interleukin-11(IL-11) was significantly up-regulated in the CAF stimulated by cisplatin. As confirmed in lung adenocarcinoma cells in vivo and in vitro, IL-11 could protect cancer cells from cisplatin-induced apoptosis and thus promote their chemoresistance...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27919849/intraportal-mesenchymal-stem-cell-transplantation-prevents-acute-liver-failure-through-promoting-cell-proliferation-and-inhibiting-apoptosis
#4
Jian-Feng Sang, Xiao-Lei Shi, Bin Han, Tao Huang, Xu Huang, Hao-Zhen Ren, Yi-Tao Ding
BACKGROUND: Transplantation of mesenchymal stem cells (MSCs) has been regarded as a potential treatment for acute liver failure (ALF), but the optimal route was unknown. The present study aimed to explore the most effective MSCs transplantation route in a swine ALF model. METHODS: The swine ALF model induced by intravenous injection of D-Gal was treated by the transplantation of swine MSCs through four routes including intraportal injection (InP group), hepatic intra-arterial injection (AH group), peripheral intravenous injection (PV group) and intrahepatic injection (IH group)...
December 2016: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/27909997/saururus-chinensis-baill-inhibits-proliferation-and-invasion-of-human-renal-cell-carcinoma-cells-through-inhibition-of-inhibitor-of-apoptosis-protein
#5
Yong Hyun Park, Jung-In Kim, Su Yeon Seo, Eunhye Lee, Hyeon Hoe Kim
OBJECTIVE: To investigate the inhibitory effect of Saururus chinensis Baill on cell viability, apoptosis, invasion capacity and the mechanism involved in human renal cell carcinoma (RCC) cells. METHODS: After treating A498 and ACHN cells with Saururus chinensis Baill extract (0, 25, 50 μg/mL), inhibitory effect of Saururus chinensis Baill were evaluated using tetrazolium salt-based colorimetric assay, flfl ow cytometry analysis, and in vitro Matrigel invasion assay, respectively...
December 1, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/27901471/esculetin-exerts-anti-proliferative-effects-against-non-small-cell-lung-carcinoma-by-suppressing-specificity-protein-1-in-vitro
#6
Ra H Lee, Young-Joo Jeon, Jin H Cho, Jeong-Yun Jang, Il-Keun Kong, Seok-Ho Kim, MinSeok S Kim, Hak-Jae Chung, Keon B Oh, Seon-Min Park, Jae-Cheon Shin, Jae-Min Seo, Sungho Ko, Jung-Hyun Shim, Jung-Il Chae
Esculetin, a coumarin derivative, is a phenolic compound isolated from Artemisia capillaris, Citrus limonia, and Euphorbia lathyris. Although it has been reported to have anti-inflammatory, anti-oxidant, and anti-proliferative activities in several human cancers, its anti-proliferative activity against non-small-cell lung carcinoma (NSCLC) and the molecular mechanisms involved have not been adequately elucidated. In this study, we used two NSCLC cell lines (NCI-H358 and NCI-H1299) to investigate the anti-proliferative activity and apoptotic effect of esculetin...
November 30, 2016: General Physiology and Biophysics
https://www.readbyqxmd.com/read/27900041/immunohistochemical-expression-and-serum-level-of-survivin-protein-in-colorectal-cancer-patients
#7
Katarzyna Jakubowska, Anna Pryczynicz, Violetta Dymicka-Piekarska, Waldemar Famulski, Katarzyna Guzińska-Ustymowicz
Survivin is one of the apoptosis-related inhibitors that is associated with a more aggressive behavior and a poor prognosis in numerous types of malignancies, including colorectal cancer (CRC). The objective of the present study was to perform immunohistochemical tissue analysis of survivin expression and serum analysis of survivin levels in CRC patients. The study group consisted of 55 CRC patients. Survivin expression was assessed by immunohistochemistry in 38 patients using monoclonal antibodies. Color reactions were observed in the nucleus and cytoplasm of the cancer cells...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895730/osthole-induces-lung-cancer-cell-apoptosis-through-inhibition-of-inhibitor-of-apoptosis-family-proteins
#8
Xiao-Man Xu, Man-Li Zhang, Yi Zhang, Li Zhao
In the present study, we investigated the effects and mechanisms of Osthole on the apoptosis of non-small cell lung cancer (NSCLC) cells and its synergistic effect with Embelin. Our results revealed that treatment with both Osthole and Embelin inhibited cell proliferation. Notably, combination treatment of Osthole and Embelin inhibited cell proliferation more significantly compared with monotherapy. In addition, morphological analysis and Annexin V/propidium iodide analysis revealed that the combination of Osthole and Embelin enhanced their effect on cell apoptosis...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27887917/microrna-136-inhibits-cancer-stem-cell-activity-and-enhances-the-anti-tumor-effect-of-paclitaxel-against-chemoresistant-ovarian-cancer-cells-by-targeting-notch3
#9
Ju-Yeon Jeong, Haeyoun Kang, Tae Hoen Kim, Gwangil Kim, Jin-Hyung Heo, Ah-Young Kwon, Sewha Kim, Sang-Geun Jung, Hee-Jung An
To identify microRNAs (miRNAs) regulating Notch3 expression in association with paclitaxel resistance, candidate miRNAs targeting Notch3 were predicted using TargetScan. We found that miR-136 directly targets Notch3, and miR-136 was significantly downregulated in OSC tissues relative to normal control tissues, and low expression of miR-136 correlated with poor overall in ovarian cancer patients. Artificial miR-136 overexpression significantly reduced cell viability, proliferation, Cancer stem cell (CSC) spheroid formation, and angiogenesis, and increased apoptosis in paclitaxel-resistant SKpac cells compared with the effects of paclitaxel alone...
November 22, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27881007/egcg-sensitizes-human-nasopharyngeal-carcinoma-cells-to-trail-mediated-apoptosis-by-activation-nf-%C3%AE%C2%BAb
#10
P Li, S Li, D Yin, J Li, L Wang, C Huang, X Yang
Aim of presented study was to investigate whether EGCG could sensitize TRAIL resistant NPC cells to TRAIL-mediated apoptosis. Three human NPC cell-lines CNE-1, CNE-2, C666-1 and a non-transformed nasopharyngeal epithelium cell-line NP-69 were treated with EGCG or/and TRAIL. The apoptosis and TRAIL receptors were determined by flow cytometric analysis. The protein expression was determined by western blotting. Mitochondrial transmembrane potential was dertemined by DiOC6 (3). C666-1 cell-line was the only one that resistant to TRAIL and selected to be treated with EGCG...
November 24, 2016: Neoplasma
https://www.readbyqxmd.com/read/27880058/fish-oil-derived-dha-mediated-enhancement-of-apoptosis-in-acute-lymphoblastic-leukemia-cells-is-associated-with-accumulation-of-p53-downregulation-of-survivin-and-caspase-3-activation
#11
Mohammad Reza Sam, Mohammad Esmaeillou, Mohammad Ali Shokrgozar
In acute lymphoblastic leukemia (ALL), resistance to chemotherapy is associated with inactivation of p53 and upregulation of survivin. Thus, targeting the p53 and survivin expression may provide an attractive strategy for ALL treatment. It has been shown that fish-oil-derived docosahexaenoic acid (DHA) activates several antitumorigenic mechanisms in tumor cells, but little is known regarding the role of DHA on modulating p53 and survivin expression in ALL cells. In this study, we investigated the alterations of the p53 and survivin expression and induction of apoptosis in DHA-treated Molt-4 cells that serve as a model for ALL cells...
November 23, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27878237/inhibition-of-the-growth-of-human-melanoma-cells-by-methionine-enkephalin
#12
Dong-Mei Wang, Guang-Chuan Wang, Jing Yang, Nicolas P Plotnikoff, Noreen Griffin, Yu-Man Han, Rui-Qun Qi, Xing-Hua Gao, Feng-Ping Shan
Melanoma is an aggressive cancer, the incidence of which is increasing worldwide. Limited therapies are currently available, particularly following metastasis. The aim of the present study was to investigate the inhibiting effect of methionine enkephalin (MENK) on human melanoma via opioid receptors. The results of the present study revealed that MENK markedly regulates the proliferation of A375 cells, causing cell cycle arrest in G0/G1 phase and a decrease in the percentage of cells in S and G2/M phases. Reverse transcription‑quantitative polymerase chain reaction demonstrated that MENK treatment increased opioid receptor expression in A375 cells...
December 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27868407/-effect-of-dj-1-silencing-by-rna-interference-on-growth-of-xenografted-human-laryngeal-squamous-cell-carcinoma-hep-2-cells-in-nude-mice
#13
Zhisen Shen, Hongxia Deng, Dong Ye, Jian Zhang, Shijie Qiu, Qun Li, Xiang Cui
Objective: To investigate the effect of silencing DJ-1 on xenografted human laryngeal squamous cell carcinoma (LSCC) Hep-2 cells in nude mice. Methods: Xenograft model of human LSCC was established by subcutaneous transplantation of Hep-2 cells in 24 nude mice. The LSCC-bearing nude mice were randomly divided into 3 groups (n=8 in each):DJ-1 siRNA low dose group and DJ-1 siRNA high dose group were injected in tumors with 20 μg of DJ-1 siRNA or 40 μg of DJ-1 siRNA in 50 μL, respectively; control group was injected with 5% glucose solution in 50 μL, twice a week for 3 weeks...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/27865841/survivin-does-not-influence-the-anti-apoptotic-action-of-xiap-on-caspase-9
#14
Franziska K Zumbrägel, Dominik A Machtens, Ute Curth, Carsten G K Lüder, Thomas F Reubold, Susanne Eschenburg
Survivin inhibits apoptosis in numerous tumor cell lines and has emerged as promising target for cancer therapy. The anti-apoptotic effect of survivin was attributed to a direct interaction with XIAP (X-linked inhibitor of apoptosis) and to an indirect effect, where survivin antagonizes the anti-XIAP action of Smac. The direct interaction is thought to lead to synergistic inhibition of caspase-9 and, at the same time, to enhanced stability of XIAP by reducing its auto-ubiquitination. Using recombinantproteins, we have investigated the influence of survivin on the inhibition of caspase-9 by XIAP in vitro...
November 16, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27864821/effect-of-alterations-in-apoptotic-pathway-on-development-of-metabolic-syndrome-in-patients-with-psoriasis-vulgaris
#15
S Korkmaz, H Korkmaz
OBJECTIVES: The purpose of this study is to evaluate the role of changes in gene expression of apoptosis activators (BAX, cytocrome-c [cyt-c], and caspase-3) and apoptosis inhibitors (BCL2, survivin, cyclin D1 [CCND1], SOD, catalase 3 [CAT], glutathione synthetase [GS], heat shock protein [HSP]27, HSP60, HSP70, and HSP90) on the development of metabolic syndrome (MetS) in patients with psoriasis vulgarins. METHODS: Fifty patients with psoriasis were enrolled in the study, 25 of whom had MetS...
November 18, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27853365/gene-silencing-effects-of-anti-survivin-sirna-delivered-by-rgdv-functionalized-nanodiamond-carrier-in-the-breast-carcinoma-cell-line-mcf-7
#16
Yanzhao Bi, Yifan Zhang, Chunying Cui, Lulu Ren, Xueyun Jiang
Nanodiamond (ND) is a renowned material in nonviral small interfering RNA (siRNA) carrier field due to its unique physical, chemical, and biological properties. In our previous work, it was proven that ND could deliver siRNA into cells efficiently and downregulate the expression of desired protein. However, synthesizing a high-efficient tumor-targeting carrier using ND is still a challenge. In this study, a novel carrier, NDCONH(CH2)2NH-VDGR, was synthesized for siRNA delivery, and its properties were characterized with methods including Fourier transform infrared spectrometry, transmission electron microscopy, scanning electron microscopy, gel retardation assay, differential scanning calorimetry, confocal microscopy, releasing test, real-time polymerase chain reaction (PCR) assay, enzyme-linked immunosorbent assay (ELISA), flow cytometry, cytotoxicity assay, and gene-silencing efficacy assay in vitro and in vivo...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27832139/a-subpopulation-of-the-k562-cells-are-killed-by-curcumin-treatment-after-g2-m-arrest-and-mitotic-catastrophe
#17
Macario Martinez-Castillo, Raul Bonilla-Moreno, Leticia Aleman-Lazarini, Marco Antonio Meraz-Rios, Lorena Orozco, Leticia Cedillo-Barron, Emilio J Cordova, Nicolas Villegas-Sepulveda
Curcumin is extensively investigated as a good chemo-preventive agent in the development of many cancers and particularly in leukemia, including treatment of chronic myelogenous leukemia and it has been proposed as an adjuvant for leukemia therapies. Human chronic myeloid leukemia cells (K562), were treated with 20 μM of curcumin, and we found that a subpopulation of these cells were arrested and accumulate in the G2/M phase of the cell cycle. Characterization of this cell subpopulation showed that the arrested cells presented nuclear morphology changes resembling those described for mitotic catastrophe...
2016: PloS One
https://www.readbyqxmd.com/read/27827395/death-receptor-5-dr5-and-a-5-gene-apoptotic-biomarker-panel-with-significant-differential-diagnostic-potential-in-colorectal-cancer
#18
Marina Devetzi, Vivian Kosmidou, Margarita Vlassi, Iraklis Perysinakis, Chrysanthi Aggeli, Theodosia Choreftaki, Georgios N Zografos, Alexander Pintzas
High expression of Inhibitor of apoptosis proteins (IAPs) has been related to colorectal cancer (CRC) progression, resistance to treatment and poor prognosis. TRAIL (TNF-related apoptosis-inducing ligand) through its receptors DR4 (TRAIL-R1) and DR5 (TRAIL-R2) can selectively induce cancer cell apoptosis. The mRNA expression of DR4, DR5, c-IAP1, c-IAP2, XIAP and BIRC5/Survivin genes was examined in 100 paired (cancerous-normal) colorectal tissue specimens by real-time PCR, 50 of which were KRAS wild-type and 50 KRAS-mutant...
November 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27826624/mesenchymal-stem-cells-derived-from-normal-gingival-tissue-inhibit-the-proliferation-of-oral-cancer-cells-in-vitro-and-in-vivo
#19
Xiaoli Ji, Zhihui Zhang, Ying Han, Jiangyuan Song, Xiangliang Xu, Jianqiu Jin, Sha Su, Dongdong Mu, Xiaodan Liu, Si Xu, Hongwei Cui, Zhongfang Zhao, Yixiang Wang, Hongwei Liu
The interplay between tumor cells and mesenchymal stem cells (MSCs) within tumor microenvironment plays a significant role in tumor development, and thus might be exploited for therapeutic intervention. In this study, we isolated MSCs from normal gingival tissue (GMSCs), and detected the effect of GMSCs on oral cancer cells via direct co-culture and indirect co-culture systems. The cell proliferation assay of direct co-culture showed that GMSCs could inhibit the growth of oral cancer cells. Conditioned medium derived from GMSCs (GMSCs-CM) also exerted an anticancer effect, which indicates that soluble factors in GMSCs-CM played a dominant role in GMSCs-induced cancer cell growth inhibition...
November 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27816606/surr9c84a-protects-and-recovers-human-cardiomyocytes-from-hypoxia-induced-apoptosis
#20
Ajay Ashok, Jagat Rakesh Kanwar, Uma Maheswari Krishnan, Rupinder Kaur Kanwar
Survivin, as an anti-apoptotic protein and a cell cycle regulator, is recently gaining importance for its regenerative potential in salvaging injured hypoxic cells of vital organs such as heart. Different strategies are being employed to upregulate survivin expression in dying hypoxic cardiomyocytes. We investigated the cardioprotective potential of a cell permeable survivin mutant protein SurR9C84A, for the management of hypoxia mediated cardiomyocyte apoptosis, in a novel and clinically relevant model employing primary human cardiomyocytes (HCM)...
November 2, 2016: Experimental Cell Research
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