• Title/Summary/Keyword: caspase-8

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The Effects of Chungganhaeju-tang(Qingganjiejiu-tang) on Alcoholic Liver Damages by Applying Proteomics (청간해주탕(淸肝解酒湯)이 알코올 유발 간섬유화와 단백질 발현에 미치는 영향)

  • Jun, Jae-Hyun;Kim, Young-Chul;Lee, Jang-Hoon;Woo, Hong-Jung
    • The Journal of Internal Korean Medicine
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    • v.29 no.2
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    • pp.469-489
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    • 2008
  • Objectives : The purpose of this study was to investigate the effects of Chungganhaeju-tang(Qingganjiejiu-tang) on alcoholic liver damaged by applying proteomics. Materials and Methods : Sprague-Dawley rats were used in this experiment the rats were divided into the normal group, the control group(alcohol) and the sample group(CGHJT +alcohol). The ethanol was orally administered twice a day for 6 weeks in the control and sample groups. Water instead of ethanol was orally administered twice a day for 6 weeks in the normal group. CGHJT extract was orally administered once a day for 6 weeks in the sample group. The livers of each group were processed and assessed by histology, Western Blot, $Oxyblot^{TM}$, CBB and 2-dimensional electrophoresis. Results : In the histological findings of the liver, CGHJT inhibited hepatic fibrogenesis induced by alcohol. TIMP-1 decreased in the sample group assessed by western blot and statistical significance was noted by dot blotting(p<0.05). In the $Oxyblot^{TM}$, protein oxidation induced by alcohol treatment decreased with CGHJT. In the 2-dimensional electrophoresis finding, increased proteins alcohol such as HSP 60, 60kDa heat shock protein, 3-mercaptopyruvate sulfurtransferase were normalized by CGHJT. CGHJT was considered to normalize the anti-oxidation activity elevated by alcohol. In the 2-dimensional electrophoresis finding, increased oxidized proteins such as actin, prolyl 4-hydroxylase beta polypeptide, 94kDa glucose regulated protein(GRP94), heat shock protein 90-alpha(HSC86), calreticulin precursor(CRP55), ATP synthase beta chain mitochondrial precursor, caspase-8 precursor, and dihydrolipoamide succinyltransferase(E2) decreased with CGHJT. CGHJT was considered to reduce the oxidative stress of alcohol. Conclusion : Chungganhaeju-tang(Qingganjiejiu-tang) exerts an inhibitory effect against the fibrosis and protein oxidation induced by alcohol treatment of rat liver. CGHJT was considered to normalize the elevated anti-oxidation activity by alcohol and to reduce the level of oxidative stress due to alcohol.

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Genuine traditional Korean medicine, BaekJeol-Tang for the treatment of rheumatoid arthritis

  • Han, Na-Ra;Sim, Woo-Moon;Sul, Moo-Chang;Kim, Min-Cheol;Lee, Chang-Hee;Kim, Dong-Won;Lee, Se-Hun;Lee, Ho-Cheol;Ryu, Jong-Min;Nam, Bong-Soo;Kim, Jong-Ok;Moon, Seong-Oh;Jang, Hyeon-Lok;Kim, Young-Seok;Lee, Ihn;Yang, Jin-Young;Hwang, Kyu-Sun;Chun, Chang-Sun;Jeong, Hyeon-Seok
    • CELLMED
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    • v.3 no.2
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    • pp.18.1-18.7
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    • 2013
  • Inflammation in rheumatoid arthritis is characterized by immune cell infiltration and cytokine secretion. In particular, mast cells and their cytokines play an important role in the pathogenesis of rheumatoid arthritis. Korean medicine, BaekJeol-Tang (BT) was designed by traditional Korean medicine theory. We already reported therapeutic effect of BT in rheumatoid arthritis. Here, we report the specific underlying mechanism of BT in activated human mast cells, HMC-1 cells. In addition, we report for the first time that BT significantly inhibited the production and mRNA expression of proinflammatory cytokines including thymic stromal lymphopoietin, interleukin (IL)-$1{\beta}$, IL-6, IL-8, and tumor necrosis factor-${\alpha}$ in activated HMC-1 cells. BT also decreased the activation of mitogen-activated protein kinases, nuclear factor-${\kappa}B$, and caspapase-1. Taken together, these results indicate that BT has potential as a regulator of inflammatory reactions for the treatment of arthritis such as osteoarthritis and rheumatoid arthritis.

Ultrasound Targeted Microbubble Destruction for Novel Dual Targeting of HSP72 and HSC70 in Prostate Cancer

  • Wang, Hang-Hui;Song, Yi-Xin;Bai, Min;Jin, Li-Fang;Gu, Ji-Ying;Su, Yi-Jin;Liu, Long;Jia, Chao;Du, Lian-Fang
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.3
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    • pp.1285-1290
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    • 2014
  • The aim was to determine whether ultrasound targeted microbubble destruction (UTMD) promotes dual targeting of HSP72 and HSC70 for therapy of castration-resistant prostate cancer (CRPC), to improve the specific and efficient delivery of siRNA, to induce tumor cell specific apoptosis, and to find new therapeutic targets specific of CRPC.VCaP cells were transfected with siRNA oligonucleotides. HSP70, HSP90 and cleaved caspase-3 expression were determined by real-time quantitative polymerase chain reaction and Western blotting. Apoptosis and transfection efficiency were assessed by flow cytometry. Cell viability assays were used to evaluate safety. We found HSP72, HSC70 and HSP90 expression to be absent or weak in normal prostate epithelial cells (RWPE-1), but uniformly strong in prostate cancerous cells (VCaP). UTMD combined with dual targeting of HSP72 and HSC70 siRNA improve the efficiency of transfection, cell uptake of siRNA, downregulation of HSP70 and HSP90 expression in VCaP cells at the mRNA and protein level, and induction of extensive tumor-specific apoptosis. Cell counting kit-8 assays showed decreased cellular viability in the HSP72/HSC70-siRNA silenced group. These results suggest that the combination of UTMD with dual targeting HSP70 therapy for PCa may be most efficacious, providng a novel, reliable, non-invasive, safe targeted approach to improve the specific and efficient delivery of siRNA, and achieve maximal effects.

$In$ $vitro$ development and gene expression of frozen-thawed 8-cell stage mouse embryos following slow freezing or vitrification

  • Shin, Mi-Ra;Choi, Hye-Won;Kim, Myo-Kyung;Lee, Sun-Hee;Lee, Hyoung-Song;Lim, Chun-Kyu
    • Clinical and Experimental Reproductive Medicine
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    • v.38 no.4
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    • pp.203-209
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    • 2011
  • Objective: This study was performed to compare the efficiency of slow freezing and vitrification based on survival, development to blastocysts, and cell numbers of blastocysts. Changes in embryonic gene expression in fresh and frozen-thawed embryos were also examined. Methods: Eight-cell stage embryos were collected from superovulated female BDF1 mice. The collected embryos were randomly divided into three groups. One group was maintained as fresh controls (n=42), one was frozen by slow freezing (n=43), and one was cooled by vitrification (n=43). After thawing or cooling, survival rates, development to blastocyst, and cell numbers and inner cell mass (ICM) cell numbers of blastocysts were compared with those of the control group. The expressions of eight genes ($Rbm3$, $Birc5$, $Sod1$, $Sod2$, $Cirbp$, $Caspase3$, $Trp53$, $Hsp70.1$) were examined by real time-quantitative polymerase chain reaction in the fresh and frozen-thawed embryos. Results: There were no significant differences in the slow freezing and vitrification groups' survival rate after thawing (88.4% vs. 88.4%), development to blastocyst (100% vs. 97.4%), cell numbers ($107.0{\pm}21.0$ vs. $115.0{\pm}19.7$), or ICM cell numbers of blastocysts ($11.3{\pm}5.2$ vs. $11.1{\pm}3.7$). Cell numbers of blastocysts were significantly ($p$ <0.05) lower in the frozen-thawed embryos than the fresh embryos. There were no significant differences in the slow freezing and the vitrification groups' expressions of the eight genes. The expressions of $CirbP$ and $Hsp70.1$ were higher in the frozen-thawed embryos than in the fresh embryos but there were no significant differences. Conclusion: These results suggest that there were no significant differences between embryos that underwent slow freezing and vitrification.

Comparison of teratogenecity induced by nano- and micro-sized particles of zinc oxide in cultured mouse embryos

  • Jung, A Young;Jung, Ki Youn;Lin, Chunmei;Yon, Jung-Min;Lee, Jong Geol;Lee, Beom Jun;Yun, Young Won;Nam, Sang-Yoon
    • Korean Journal of Veterinary Research
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    • v.55 no.2
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    • pp.133-139
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    • 2015
  • The increasing uses of zinc oxide nanoparticles (nZnO) in industrial and personal care products raise possible danger of using nZnO in human. To determine whether ZnO induces size-dependent anomalies during embryonic organogenesis, mouse embryos on embryonic day 8.5 were cultured for 2 days under 50, 100, and $150{\mu}g$ of nZnO (< 100 nm) or micro-sized ZnO (mZnO; $80{\pm}25{\mu}m$), after which the morphological changes, cumulative quantity of Zn particles, and expressions of antioxidant and apoptotic genes were investigated. Although embryos exposed to $50{\mu}g$ of ZnO exhibited no defects on organogenesis, embryos exposed to over $100{\mu}g$ of ZnO showed increasing anomalies. Embryos treated with $150{\mu}g$ of nZnO revealed significant changes in Zn absorption level and morphological parameters including yolk sac diameter, head length, flexion, hindbrain, forebrain, branchial bars, maxillary process, mandibular process, forelimb, and total score compared to the same dose of mZnO-treated embryos. Furthermore, CuZn-superoxide dismutase, cytoplasmic glutathione peroxidase (GPx) and phospholipid hydroperoxidase GPx mRNA levels were significantly decreased, but caspase-3 mRNA level was greatly increased in nZnO-treated embryos as compared to normal control embryos. These findings indicate that nZnO has severer teratogenic effects than mZnO in developing embryos.

Improvement Effect of Sprout of Coix lacryma-jobi var. mayuen Stapf Water Extract on DSS-Induced Ulcerative Colitis in Mice. (DSS로 궤양성 대장염 유발된 동물모델에서 의이아(薏苡芽) 열수 추출물의 개선 효과)

  • Kim, Min Ju;Shin, Mi-Rae;Lee, Jin A;Park, Soon-Ae;Park, Hae-Jin;Lee, Jeong Hoon;Roh, Seong-Soo
    • The Korea Journal of Herbology
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    • v.35 no.6
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    • pp.21-28
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    • 2020
  • Objectives : The objective of this study was to investigate the improvement effect of Sprout of Coix lacryma-jobi var. mayuen Stapf water extract (SC) on the dextran sulfate sodium (DSS)-induced ulcerative colitis mice. Methods : The antioxidant activity of SC was measured through total polyphenol and total flavonoid content in vitro. The experiment was conducted with seven-week-old male Balb/c mice. After 1 week adaptation, acute colitis was induced by oral administration of 5% DSS dissolved in drinking water, for 7 days. And normal mice received drinking water without DSS throughout the entire experimental period. For each experiment, the mice were divided into 4 groups and 24 colitis mice were arbitrarily allocated into 3 groups (n = 8/group); Normal group, Control group, SC 100 mg/kg treated group (SCL), SC 200 mg/kg treated group (SCH). Serum and colon tissues were collected after one weeks of drug administration. Results : ROS levels, ONOO- levels, AST, and ALT in serum were decreased in SC treated groups compared to the control group. Western blotting measurements of Nrf2, HO-1, SOD, catalase, GPx-1/2, IL-4, IL-10, and Bcl2 showed that the SC treated groups was increased compared to the Control group. Also, western blot measurements of NF-κBp65, p-IκBα, COX-2, iNOS, TNF-α, IL-1β, Bax, and Caspase-3 showed that the SC treated groups was reduced compared to the Control group. Conclusion : Taken together, these results suggest that SC treatment can attenuate the DSS-induced colitis though inhibiting NF-κB pathway and enhancing Nrf2 pathway. Therefore, SC was the potential to be used as a natural therapeutic drug.

Astaxanthin Inhibits $H_2O_2$-Mediated Apoptotic Cell Death in Mouse Neural Progenitor Cells via Modulation of P38 and MEK Signaling Pathways

  • Kim, Jeong-Hwan;Choi, Woo-Bong;Lee, Jong-Hwan;Jeon, Sung-Jong;Choi, Yung-Hyun;Kim, Byung-Woo;Chang, Hyo-Ihl;Nam, Soo-Wan
    • Journal of Microbiology and Biotechnology
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    • v.19 no.11
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    • pp.1355-1363
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    • 2009
  • In the present study, the neuroprotective effects of astaxanthin on $H_2O_2$-mediated apoptotic cell death, using cultured mouse neural progenitor cells (mNPCs), were investigated. To cause apoptotic cell death, mNPCs were pretreated with astaxanthin for 8 h and followed by treatment of 0.3 mM $H_2O_2$. Pretreatment of mNPCs with astaxanthin significantly inhibited $H_2O_2$-mediated apoptosis and induced cell growth in a dose-dependent manner. In Western blot analysis, astaxanthin-pretreated cells showed the activation of p-Akt, p-MEK, p-ERK, and Bcl-2, and the reduction of p-P38, p-SAPK/JNK, Bax, p-GSK3b, cytochrome c, caspase-3, and PARP. Because $H_2O_2$ triggers caspases activation, this study examined whether astaxanthin can inhibit caspases activation in $H_2O_2$-treated mNPCs. After $H_2O_2$ treatment, caspases activities were prominently increased, but astaxanthin pretreatment significantly inhibited $H_2O_2$-mediated caspases activation. Astaxanthin pretreatment also significantly recovered the ATP production ability of $H_2O_2$-treated cells. These findings indicate that astaxanthin inhibits $H_2O_2$-mediated apoptotic features in mNPCs. Inhibition assays with SB203580 ($10\;{\mu}M$, a specific inhibitor of p38) and PD98059 ($10\;{\mu}M$, a specific inhibitor of MEK) clearly showed that astaxanthin can inhibit $H_2O_2$-mediated apoptotic death via modulation of p38 and MEK signaling pathways.

Effects of dietary spermine supplementation on cell cycle, apoptosis, and amino acid transporters of the thymus and spleen in piglets

  • Cao, Wei;Wu, Xianjian;Jia, Gang;Zhao, Hua;Chen, Xiaoling;Wu, Caimei;Cai, Jingyi;Wang, Jing;Liu, Guangmang
    • Asian-Australasian Journal of Animal Sciences
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    • v.31 no.8
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    • pp.1325-1335
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    • 2018
  • Objective: This study investigated whether spermine supplementation could regulate cell cycle, apoptosis, and amino acid transporter-related genes expression in the thymus and spleen of early weaned piglets. Methods: Eighty female piglets were randomly distributed to receive adequate nutrients supplemented with spermine (0.4 mmol/kg body weight/24 h) or to be provided with restricted nourishment supplemented with normal saline for 7 h or 3, 6, or 9 d in pairs. Results: Regardless of administration time, spermine supplementation significantly up-regulated cyclin A2 gene expression but down-regulated p21 and cyclin D3 mRNA levels in the thymus and spleen and reduced cyclin E2 gene expression in the thymus of piglets (p<0.05). Irrespective of the treatment period, the reduced Bax and caspase-3 gene expressions and improved Bcl-2 mRNA level were observed in the thymus and spleen of spermine-administrated piglets (p<0.05). Regardless of supplementation time, spermine intake significantly enhanced the expressions of amino acid transporter-related genes (SLC1A1, SLC1A5, SLC7A1, SLC7A7, and SLC15A1) in both thymus and spleen, as well as SLC7A9 in the spleen of piglets (p<0.05). In addition, extended spermine administration also markedly promoted cell proliferation, depressed apoptosis and modulated amino acid transport (p<0.05), and such effects were the greatest during prolonged spermine supplementation (6 d) compared to the other time periods (p<0.05). Conclusion: Spermine supplementation may regulate cell cycle during the G1/S phase, suppress apoptosis and modulate amino acid transport. A period of 6 d of spermine supplementation is required to produce the optimal effects on nutritional implications.

Bee Venom Enhanced Cytotoxic Effect of Natural Killer Cells on Human Lung Cancer Through Inducing Extrinsic Apoptosis

  • Kim, Jung Hyun;Song, Ho Sueb
    • Journal of Acupuncture Research
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    • v.31 no.1
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    • pp.111-119
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    • 2014
  • Objectives : I investigated whether Bee Venom can synergistically strengthen the cytotoxic effects of NK-92 cells, enhancing the inhibition of the growth of Lung Cancer Cells including A549 and NCI-H460 through induction of death receptor dependent extrinsic apoptosis and NO generation in the Nitro-oxide pathway. Methods : Bee Venom inhibited cell proliferation of A549 or NCI-H460 Human Lung Cancer Cells as well as NK-92 Cells. Moreover, when they were co-punctured with NK cells and concomitantly treated by 3 ${\mu}g/ml$ of Bee Venom, more influence was exerted on inhibition of proliferation of A549 or NCI-H460 Human Lung Cancer Cells than BV or NK cell co-culture alone. Results : The expression of Fas, TNFR2, DR3, DR6 in A549 Lung Cancer Cells was significantly increased by co-culture of NK-92 cells and treatment of 3 ${\mu}g/ml$ of Bee Venom, compared to co-culture of NK-92 cells alone, whereas the expression of Fas, TNFR2, DR6 in NCI-H460 Lung Cancer Cells was significantly increased by co-culture of NK-92 cells, representing no synergistic effects in the co-culture of NK-92 cell and concomitant treatment of 3 ${\mu}g/ml$ of Bee Venom. Coincidently, caspase-8, a expression of pro-apoptotic proteins in the extrinsic apoptosis pathway demonstrated same results as the above. Meanwhile, In NO generation, there is little change of NO generation in co-culture of NK-92 cells with A549 cells as well as the co-culture of NK-92 cell with them and concomitant treatment of 3 ${\mu}g/ml$ of Bee Venom, whereas increase of NO generation was shown in co-culture of NK-92 cells with NCI-H460 cells as well as the co-culture of NK-92 cell with them and concomitant treatment of 3 ${\mu}g/ml$ of Bee Venom, although synergistic effects by Bee Venom was not found. Conclusions : These present data provide that Bee Venom could be useful candidate compounds to enhance lung cancer growth inhibiting ability of NK-92 cells through DR expression and the related apoptosis.

Effects of Trichostatin A and 5-aza-2'deoxycytidine on Nuclear Reprogramming in Pig Cloned Embryos

  • Lee, Sung Hyun;Xu, Yong-Nan;Heo, Young-Tae;Cui, Xiang-Shun;Kim, Nam-Hyung
    • Reproductive and Developmental Biology
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    • v.37 no.4
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    • pp.269-279
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    • 2013
  • Low efficiency of somatic cell nuclear transfer (SCNT) is attributed to incomplete reprogramming of transfered nuclei into oocytes. Trichostatin A (TSA), histone deacetylase inhibitor and 5-aza-2'deoxycytidine (5-aza-dC), DNA methylation inhibitor has been used to enhance nuclear reprogramming following SCNT. However, it was not known molecular mechanism by which TSA and 5-aza-dC improve preimplantation embryo and fetal development following SCNT. The present study investigates embryo viability and gene expression of cloned porcine preimplantation embryos in the presence and absence of TSA and 5-aza-dC as compared to embryos produced by parthenogenetic activation. Our results indicated that TSA treatment significantly improved development. However 5-aza-dC did not improve development. Presence of TSA and 5-aza-dC significantly improved total cell number, and also decreased the apoptotic and autophagic index. Three apoptotic-related genes, Bak, Bcl-xL, and Caspase 3 (Casp3), and three autophagic-related genes, ATG6, ATG8, and lysosomal-associated membrane protein 2 (LAMP2), were measured by real time RT-PCR. TSA and 5-aza-dC treatment resulted in high expression of anti-apoptotic gene Bcl-xL and low pro-apoptotic gene Bak expression compared to untreated NT embryos or parthenotes. Furthermore, LC3 protein expression was lower in NT-TSA and NT-5-aza-dC embryos than those of NT and parthenotes. In addition, TSA and 5-aza-dC treated embryos displayed a global acetylated histone H3 at lysine 9 and methylated DNA H3 at lysine 9 profile similar to the parthenogenetic blastocysts. Finally, we determined that several DNA methyltransferase genes Dnmt1, Dnmt3a and Dnmt3b. NT blastocysts showed higher levels Dnmt1 than those of the TSA and 5-aza-dC blastocysts. Dnmt3a is lower in 5-aza-dC than NT, NTTSA and parthenotes. However, Dnmt3b is higher in 5-aza-dC than NT and NTTSA. These results suggest that TSA and 5-aza-dC positively regulates nuclear reprogramming which result in modulation of apoptosis and autophagy related gene expression and then reduce apoptosis and autophagy. In addition, TSA and 5-aza-dC affects the acetylated and methylated status of the H3K9.