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#28945763   2017/09/25 Save this To Up

Toxicological effects of NCKU-21, a phenanthrene derivative, on cell growth and migration of A549 and CL1-5 human lung adenocarcinoma cells.

Chemotherapy insensitivity continues to pose significant challenges for treating non-small cell lung cancer (NSCLC). The purposes of this study were to investigate whether 3,6-dimethoxy-1,4,5,8-phenanthrenetetraone (NCKU-21) has potential activity to induce effective toxicological effects in different ethnic NSCLC cell lines, A549 and CL1-5 cells, and to examine its anticancer mechanisms.

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Epidermal Growth Factor ( Epidermal Growth Factor ( Rabbit Anti-Human Red Blo Anti C Reactive Protein A Epidermal Growth Factor ( Epidermal Growth Factor ( Fibroblast Growth Factor Fibroblast Growth Factor Fibroblast Growth Factor Fibroblast Growth Factor Keratinocyte Growth Facto Keratinocyte Growth Facto

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#28454312   2017/04/29 Save this To Up

Treatment with a selenium-platinum compound induced T-cell acute lymphoblastic leukemia/lymphoma cells apoptosis through the mitochondrial signaling pathway.

T-cell acute lymphoblastic leukemia/lymphoma (T-ALL/LBL) is an aggressive hematological disorder that is sensitive to chemotherapy; however, it exhibits frequent relapse rates. Platinum-containing therapeutics are the first-line salvage regimens used in the treatment of relapsed or refractory T-ALL/LBL. The selenium-platinum compound EG-Se/Pt is obtained from the combination of selenium-containing molecules (EG-Se) with cisplatin (CDDP); however, its anticancer properties have been poorly investigated. In the present study, the Cell Counting Kit-8 assay was used to evaluate the inhibitory effect of treatment with EG-Se/Pt on cell viability. Cell cycle distribution, apoptosis, reactive oxygen species (ROS) content and the mitochondrial membrane potential were analyzed using flow cytometry. Intracellular platinum content was detected using inductively coupled plasma mass spectrometry. Caspase activity was determined using a colorimetric assay. The expression of several proteins associated with apoptosis was analyzed using western blotting. The results of the present study demonstrated that treatment with EG-Se/Pt increased the inhibition of Jurkat and Molt-4 T-ALL/LBL cell viability compared with CDDP, and induced apoptosis and cell cycle arrest. The intracellular platinum content of T-ALL/LBL cells treated with EG-Se/Pt was increased compared with that of T-ALL/LBL cells treated with CDDP. EG-Se/Pt-induced apoptosis was mediated by caspase and ROS levels through the activation of the mitochondrial signaling pathway. The results of the present study suggest that EG-Se/Pt is a potential therapeutic candidate for the treatment of T-ALL/LBL.

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#28391163   2017/04/09 Save this To Up

Peroxiredoxin 4 inhibits IL-1β-induced chondrocyte apoptosis via PI3K/AKT signaling.

Chondrocytes apoptosis induced by reactive oxygen species (ROS) plays a critical role in the pathogenesis of osteoarthritis (OA). Peroxiredoxin 4 (PRDX4), a member of the PRDX family, is essential for removing metabolic free radicals and reducing intracellular ROS. In this study, we sought to investigate the roles of PRDX4 on interleukin 1β (IL-1β)-induced chondrocyte apoptosis.

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#28147711   2017/02/02 Save this To Up

Pharmacokinetics and in vitro and in vivo delivery of sulforaphane by PCL-PEG-PCL copolymeric-based micelles.

A reliable and efficient drug delivery system using PCL-PEG-PCL copolymers was established for the anti-cancer compound sulforaphane (SF) in this study. Encapsulated SF by PCL-PEG-PCL nanoparticles led to formation of SF-loaded PCL-PEG-PCL micelles. Micelles characterization and stability, the particle size and their morphology were determined by DLS and AFM. The loading efficiency of SF was 19.33 ± 1.28%. The results of AFM showed that the micelles had spherical shapes with the size of 107 nm. In vitro release of SF from SF-entrapped micelles was remarkably sustained. The cytotoxicity of free SF, PCL-PEG-PCL and SF/PCL-PEG-PCL micelles was analysis by MTT colorimetric assay on MCF-7, 4T1 and MCF10A cell lines. Expression levels of BCL-2, PARP, COX-2, Caspase-9 and ACTB genes were quantified by real-time PCR. Flow cytometry analysis was performed using the Annexin V-FITC Apoptosis Detection Kit to evaluate the apoptotic effects of free SF compared with SF/PCL-PEG-PCL micelles. Study of the in vivo pharmacokinetics of the SF-loaded micelles was carried out on SF-loaded PCL-PEG-PCL micelles in comparison with free SF. The results of in vivo experiments indicated that the SF loaded micelles significantly reduced the tumor size. In vivo results showed that the multiple injections of SF-loaded micelles could prolong the circulation period and increase the therapeutic efficacy of SF. Also, in comparison with the free-SF solution, encapsulation of the SF in micelles increased the mean residence time from 0.5 to 4 h and the area under the concentration-time curve up to 50 folds.

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C Peptide ELISA Kit, Rat Directed In Vivo Angiogen Cultrex In Vitro Angiogen Human integrin aVb3, affi BYL-719 Mechanisms: PI3K- Inhibitory Mouse Monoclon Inhibitory Mouse Monoclon MarkerGeneTM in vivo lacZ Resorufin Oleate, Fluorog Interleukin-34 IL34 (N-t Interleukin-34 IL34 anti Sterile filtered goat se

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#27446455   2016/07/22 Save this To Up

Paeoniflorin inhibits human pancreatic cancer cell apoptosis via suppression of MMP-9 and ERK signaling.

Paeoniflorin exhibits anticancer, anti-inflammatory and antioxidation effects, as well as specific pharmacological effects on smooth muscle and the immune, cardiovascular and central nervous systems. The present study aimed to investigate the anticancer effects of paeoniflorin on pancreatic cancer cells and to elucidate the mechanisms by which these effects occur. In the present study, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase assays were performed to assess cell viability and cell cytotoxicity of BXPC-3 human pancreatic cancer cells, respectively. Cellular apoptosis and caspase-3/9 activities were analyzed using an Annexin V-fluorescein isothiocyanate/propidium iodide Apoptosis Detection kit, a DAPI staining assay and colorimetric kits, respectively. Matrix metalloproteinase-9 (MMP-9) and extracellular signal-regulated kinases (ERK) protein expression in BXPC-3 cells were also investigated using gelatin zymography assays and western blot analysis, respectively. In the present study, paeoniflorin was found to inhibit the cell viability and increase cell cytotoxicity of BXPC-3 cells in a dose- and time-dependent manner. In addition, cellular apoptosis, as well as caspase-3 and -9 activity of BXPC-3 cells was increased following paeoniflorin treatment. Notably, paeoniflorin reduced MMP-9 and ERK protein expression in BXPC-3 cells. These results indicate that paeoniflorin exhibits a potential anticancer effect by enhancing human pancreatic cancer cell apoptosis via the suppression of MMP-9 and ERK signaling.

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#27446379   2016/07/22 Save this To Up

Psoralidin inhibits proliferation and enhances apoptosis of human esophageal carcinoma cells via NF-κB and PI3K/Akt signaling pathways.

Esophageal cancer is the most common gastrointestinal cancer. Psoralidin exhibits antioxidant, anti-apoptotic, anti-inflammatory and antitumor effects, which result in the inhibition of cancer formation. The present study aimed to investigate the effect of psoralidin on esophageal carcinoma proliferation and growth, and to elucidate its underlying mechanism of action. The effect of psoralidin on cell proliferation was investigated using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Using an annexin V-fluorescein isothiocyanate/propidium iodide apoptosis detection kit and 4',6-diamidino-2-phenylindole staining assay, the present study demonstrated that psoralidin significantly enhanced apoptosis of human esophageal carcinoma Eca9706 cells. In addition, caspase-3 activity was analyzed with a caspase-3 colorimetric assay kit, while nuclear factor (NF)-κB activity and protein phosphatidylinositol 3-kinase (PI3K)/Akt expression were measured with an NF-κB enzyme-linked immunosorbent assay kit and western blot analysis, respectively. Eca9706 cells were treated with a PI3K agonist in order to investigate the mechanism of action of psoralidin. It was observed that psoralidin was able to decrease the proliferation and promote the cellular apoptosis of Eca9706 cells in a dose-dependent manner. Furthermore, psoralidin was also able to inhibit the caspase-3 activity of Eca9706 cells in a dose-dependent manner. In addition, psoralidin inhibited NF-κB activity and reduced PI3K and Akt protein expression in Eca9706 cells. Notably, the PI3K agonist was able to reverse the effect of psoralidin on Eca9706 cells. The results of the present study demonstrated that psoralidin was able to inhibit proliferation and enhance apoptosis of human esophageal carcinoma cells via the NF-κB and PI3K/Akt signaling pathways.

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Epidermal Growth Factor ( Epidermal Growth Factor ( Rabbit Anti-Human Androge Rabbit Anti-Human Androge anti CD7 All T cells Reco anti Transferrin receptor Rabbit Anti-Human Androge Goat Anti-Human Androgen CAR,CAR,Constitutive acti Recombinant Human Androge Anti C Reactive Protein A anti FAS IgG1 (monoclonal

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#26401374   2015/09/24 Save this To Up

Protective effect of cornel iridoid glycoside in D-galactosamine/tumor necrosis factor-α-injured L02 hepatocytes and its mechanism.

The aim was to determine the action mode of cornel iridoid glycoside (CIG) from Fructus corni on hepatoprotective activities, the effects of CIG on human hepatocyte cell line (L02) injured by D-galactosamine (GalN) and tumor necrosis factor-α (TNF-α) were examined.

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ELISA Kit for Tumor Necr Human Tumor Necrosis Fact Human Tumor Necrosis Fact TNFRSF1B - Goat polyclona RANK Ligand Soluble, Huma Mouse Tumor Necrosis Fact Rat Tumor Necrosis Factor ELISA p55,p60,Pig,Sus scr Human Tumor necrosis fact ELISA Kit for Tumor Necro Mouse Tumor Necrosis Fact Human Tumor Necrosis Fact

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#25908625   2015/04/24 Save this To Up

Ginsenoside Ro suppresses interleukin-1β-induced apoptosis and inflammation in rat chondrocytes by inhibiting NF-κB.

This study investigated effects of Ginsenoside Ro (Ro) on interleukin-1β (IL-1β)-induced apoptosis and inflammation in rat chondrocytes. The rat chondrocytes were co-treated with IL-1β (10 ng·kg(-1)) and Ro (50, 100 and 200 μmol·L(-1)) for 48 h. Chondrocytes viability was detected by the MTT assay and Annexin V-FITC/PI dual staining assay. Caspase 3 activity was measured by using caspase 3 colorimetric assay kit. Apoptosis related proteins Bax, Bad, Bcl-xL, PCNA, p53 and phospho-p53, along with inflammation related protein MMP 3, MMP 9 and COX-2, and the expression of phospho-NF-κB p65 were assayed by western blotting analyses. Ro could improve IL-1β-induced chondrocytes viability. Ro could suppress IL-1β-induced apoptosis by inhibiting levels of Bax and Bad, decreasing p53 phosphorylation and promoting the expression of Bcl-xL and PCNA. Ro inhibited caspase 3 activity. IL-1β-induced inflammation and matrix degration were also alleviated by Ro with down-regulating the expression of MMP 3, MMP 9 and COX-2. Moreover, Ro inhibited NF-κB p65 phosphorylation induced by IL-1β. In conclusion, these results suggested Ro exerted anti-apoptosis and anti-inflammation in IL-1β-induced rat chondrocytes, which might be related to NF-κB signal pathway. Therefore, we propose that Ro might be a potential novel drug for the treatment of osteoarthritis.

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#25598954   2015/01/19 Save this To Up

Mir-55 inhibition can reduce cell proliferation and induce apoptosis in Jurkat (Acute T cell Leukemia) cell line.

MicroRNAs are small and non-coding RNA molecules with approximately 22 nt in length that cause inhibition of translation or degradation of mRNA. MiR-155 is a kind of molecule with different functions, such as its role in proliferation, apoptosis, inflammation, differentiation, and immunity. One of its best known functions is apoptosis that affects on caspase-3 activity. The main aim of this study was evaluation of miR-155 inhibition effect on cell proliferation and apoptosis induction in Jurkat cells.

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#25209804   2014/11/13 Save this To Up

Asymmetric dimethylarginine triggers macrophage apoptosis via the endoplasmic reticulum stress pathway.

Asymmetric dimethylarginine (ADMA), an endogenous inhibitor of nitric oxide synthase (NOS), is emerging as a key contributing factor in atherogenesis, a process in turn known to involve macrophage apoptosis. The aim of this study was to determine the effect of ADMA on macrophage apoptosis, with specific reference to the endoplasmic reticulum (ER) stress pathway. Macrophage apoptosis was evaluated by Annexin V- Propidium iodide (PI) and Hoechst 33258 staining assays. Levels of the ER stress marker glucose regulated protein 78 (GRP78) were characterized by western blot. Levels of the proapoptotic C/EBP-homologous protein (CHOP) were evaluated by western blot and reverse transcription polymerase chain reaction (RT-PCR), and caspase-4 activity was measured using a colorimetric protease assay kit. We observed ADMA dose- and time-dependent increases in macrophage levels of GRP78. Similar ADMA dose- and time-dependent increases were detected in intracellular caspase-4 activity and macrophage apoptosis, all of which were sensitive to treatment with siRNAs for protein kinase RNA-like ER kinase and inositol-requiring protein-1 (IRE1), the ADMA antagonist L-arginine, as well as inhibitors of eukaryotic translation initiation factor-2 (salubrinal), IRE1 (irestatin 9389), and c-Jun N-terminal kinase (SP600125). Our results indicate that ADMA triggers macrophage apoptosis via the ER stress pathway.

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