• Title/Summary/Keyword: anti-apoptotic effects

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Anti-apoptotic and Neuroprotective Effects of Bambusae Caulis in Liquamen Manufactured by Different Production Process (생산공정 차이에 따른 죽력(竹瀝)이 apoptosis 및 신경세포 보호 효과에 미치는 영향)

  • Choi, Chan-Hun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.21 no.5
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    • pp.1250-1259
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    • 2007
  • Bambusae Caulis in Liquamen(BCL) has been commonly prescribed for stroke patients in the traditional Oriental medicine. So this study is aims to investigate the anti-apoptotic and neuroprotective effects of Bambusae Caulis in Liquamen(BCL) manufactured by different production process on the focal ischemia induced by intraluminal filament insertion in rats. The focal ischemia was induced by intraluminal filament insertion into middle cerebral artery. The animals were divided into four groups (n=15 in each group). The ischemia induced and not treated group : Control group, the ischemia induced and oral medication of the three kinds of BCL : BCL-A group, BCL-B group, BCL-C group. BCL-A was produced by heating at a low temperature$(250^{\circ} C)$ in electric kiln and filtering. BCL-B was produced by heating at a high temperature$(900^{\circ} C{\sim}1,000^{\circ}C)$ in yellow earth kiln and refining and filtering. BCL-C was produced by heating at a low temperature$(400^{\circ} C)$ yellow earth kiln and no refining and filtering. The anti-apoptotic and neuroprotective effects of the oral medication of BCL were observed by Bax, BCL-2, cytochrome c, mGluR5, cresyl violet and ChAT-stain. Our study suggests that BCl-A(was produced by heating at a low temperature in electric kiln and filtering) and BCL-C(was produced by heating at a low temperature in yellow earth kiln and no refining and filtering) show anti-apoptotic and neuroprotective effects on the focal ischemia induced by intraluminal filament insertion in rats and BCL-C is more effective than BCL-A.

Anti-apoptotic and Neuroprotective Effects of Acupuncture at $LR_3$ on Focal Brain Ischemic Injury Induced by Intraluminal Filament Insertion in Rats (다종(多種)의 태충(太衝)($LR_3$) 침척요법(鍼刺療法)이 Intraluminal Filament 삽입술로 유발된 백서(白鼠)의 허혈성 국소 뇌손상에 미치는 영향)

  • Yim, Hyun-Jin;Cho, Myung-Rae;Youn, Dae-Hwan;Na, Chang-Su;Ryu, Chung-Ryeol
    • Journal of Acupuncture Research
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    • v.24 no.2
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    • pp.125-140
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    • 2007
  • Objectives: This study was performed to investigate the effects of acupuncture therapy(AT, AT-9), electro-acupuncture therapy(EAT) and low level laser acupuncture therapy(LAT) at LRJ on the focal ischemia-induced by intraluminal filament insertion in rats. Methods : In the present syudy, the focal ischemia was induced by Intraluminal filament insertion into left middle cerebral artery. The subjects were divided into five groups after focal brain ischemia. (n=15, in each group) : Control with no treatment, AT with acupuncture at $LR_3$, AT-9 with acupuncture at $LR_3$ and rotating 9 times in a clockwise direction, EAT with electro-acupuncture at $LR_3$ and LAT with invasive laser acupuncture at $LR_3$. Anti-apoptotic and neuroprotective effects of acupuncture were observed by mGluR5 mRNA, Bax mRNA, Bcl-2 mRNA, Cytochrome C protein, Cresyl violet-stain and Choline acetyltransferase (ChAT)-stain in the hippocampus. Results: 1. In LAT, mGluR5, Cresyl violet-stain and ChAT-stain were increased. 2. In LAT, Cytochrome C protein was decreased. 3. In AT-9, Bax, Cytochrome C protein and the Bax/Bcl-2 ratio were decreased. 4. In AT-9, Bcl-2, Cresyl violet-stain and ChAT-stain were increased. 5. In EAT, Bcl-2 and Cresyl violet-stain were increased. Conclusions: These results suggests that LAT and AT-9 show anti-apoptotic and neuro-protective effects and that LAT and AT-9 may be useful for managing stroke by focal brain ischemia.

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Effects of Costunolide Derived from Saussurea lappa Clarke on Apoptosis in AGS Stomach Cancer Cell Lines

  • Sun, Seung-Ho;Ko, Seong-Gyu
    • The Journal of Korean Medicine
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    • v.27 no.4
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    • pp.84-95
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    • 2006
  • Costunolide is an active sesquiterpene lactone isolated from the root of Saussurea lappa Clarke and is known to exhibit a variety of biological activities, including anti-carcinogenic and anti-inflammatory effects. Nevertheless, the pharmacological pathways of costunolide have not yet been fully elucidated. In this study, its cytotoxic effects were examined using AGS gastric cancer cells. Its treatment resulted in apoptosis in a dose- and time-dependent manner. The effects were attributed to the regulation of pro-apoptotic molecules and suppression of anti-apoptotic molecules. These results suggest that costunolide may be a candidate to deal with gastric cancers by chemopreventive agents.

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Anti-Apoptotic Effects of Catalpol on Preimplantaion Porcine Embryos

  • Lee, Yong-Hee;Kim, Jin-Woo;Chae, Sung-Kyu;Ahn, Jae-Hyun;Do, Geon-Yeop;Koo, Deog-Bon
    • Journal of Embryo Transfer
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    • v.30 no.1
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    • pp.23-31
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    • 2015
  • Catalpol, an iridoid glucoside, isolated from the root of Rehmannia glutinosa Libosch. It possesses a broad range of biological and pharmacological activity including anti-tumor, anti-inflammation and anti-oxidant by acting as a free radical scavenger. Therefore, in this study, the effects of catalpol on blastocyst development, expression levels of reactive oxygen species (ROS) and apoptotic index were investigated in porcine embryos. After in vitro maturation and fertilization, porcine embryos were cultured for 6 days in porcine zygote medium 3 (PZM-3) supplemented with catalpol (0, 100, 200 and $400{\mu}M$, respectively). Blastocyst development not significantly improved in the catalpol treated group when compared with control group. Otherwise, the intracelluar levels of ROS were decreased and the numbers of apoptotic nuclei were reduced in the catalpol ($100{\mu}M$) treated porcine blastocysts (P<0.05). On the other hand, blastocyst development was significantly improved in the catalpol ($100{\mu}M$) treated group when compared with the untreated catalpol group under $H_2O_2$ ($200{\mu}M$) induced oxidative stress (P<0.05). Otherwise, the intracellular levels of ROS in catalpol ($100{\mu}M$) treated group were significantly decreased in the untreated catalpol group under $H_2O_2$ ($200{\mu}M$) induced oxidative stress (P<0.05). Furthermore, the total cell numbers of blastocysts were significantly increased (P<0.05) in the catalpol ($100{\mu}M$) treated group under $H_2O_2$ ($200{\mu}M$) induced oxidative stress, whereas numbers of apoptoic nuclei were significantly reduced (P<0.05). In conclusion, our results indicate that treatment of catalpol may have important implications for improving developmental competence and preimplantation quality of porcine embryos through its anti-oxidant and anti-apoptotic effect.

Anti-inflammatory and Anti-allergic Effect of Extractsfrom Organic Soybean (유기농 콩 추출물의 항염증 및 항알레르기 효과)

  • Chung, Eun-Kyung;Seo, Eun-Hye;Park, Jun-Ho;Shim, Hye-Rim;Kim, Kyung-Hee;Lee, Byung-Ryong
    • Korean Journal of Organic Agriculture
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    • v.19 no.2
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    • pp.245-253
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    • 2011
  • This study was carried out to investigate the biological effects of organic soybean extracts. Cellular and molecular analysis was performed to determine anti-oxidative, anti-inflammatory, anti-apoptotic, and anti-inflammatory effects of soybean extracts. First, we obtained various solvent extracts of soybean such as water, ethanol, and methanol. Molecular and cellular analysis were performed with 0.1 mg/ml concentration of each solvent extracts. The results of anti-oxidative, antiinflammatory and anti-apoptotic effects of organic soybean extracts were prominent. However, organic soybean extracts were not observed in anti-allergic effects determined by releasing histamine from rat mast cell line, RBL-2H3. Conclusively, organic soybean suppress inflammatory responses. In addition, organic soybean could be applied as a functional food ingredient for treatment of chronic inflammation, asthma, and atopic dermatitis with enhanced anti-inflammatory activities.

Anti-cancer Effects of Bujeonghangam-tang on Human Neuroblastoma Cell Line LAN5 (인간 신경모세포종 세포주 LAN5에 대한 부정항암탕(扶正抗癌湯)의 항종양효과)

  • Cho, Young-Kee;Lee, Seong-Kyun;Lee, Jung-Sup;Nam, Sang-Kyu;Jeong, Hyun-Ae;Moon, Goo;Moon, Mi-Hyun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.6
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    • pp.1548-1555
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    • 2006
  • Bujeonghangam-tang(BHT) has been used as an anticancer agent in oriental medicine, but the mechanism by which it induces cell death in cancer cells is still unclear. To investigate cell death mechanism by BHT in cancer cells, the activities of apoptosis signaling pathway were tested in human neuroblastoma cell line LAN5. Viability of LAN5 cells was markedly decreased by treatment of the water extract of BHT in a dose-dependent manner. BHT induced cell death was confirmed as apoptosis characterized by chromatin condensation. We tested whether the water extract of BHT affects the anti-apoptotic protein such as Bcl-2 and Bcl-XL, and the pro-apoptotic protein such as Bax. Both Bcl-2 and Bcl-XL were gradually decreased but Bas was increased in a time-dependent manner after the addition of the water extract of BHT. Cleavage of Bid by activation of caspase-8 protease was also observed in LAN-5 cells by the treatment of the water extract of BHT. Taken together, these results suggest that the water extract of BHT exerts anti-cancer effects on human neuroblastoma LAN-5 cells by inducing the apoptotic death via down-regulation of anti-apoptotic proteins such as Bcl-2 and Bcl-XL, up-regulation of pro-apoptotic protein such as Bax, and activation of intrinsic caspase cascades.

Combined Treatment of Herbal Mixture Extract H9 with Trastuzumab Enhances Anti-tumor Growth Effect

  • Lee, Sunyi;Han, Sora;Jeong, Ae Lee;Park, Jeong Su;Jung, Seung Hyun;Choi, Kang-Duk;Yang, Young
    • Journal of Microbiology and Biotechnology
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    • v.25 no.7
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    • pp.1036-1046
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    • 2015
  • Extracts from Asian medicinal herbs are known to be successful therapeutic agents against cancer. In this study, the effects of three types of herbal extracts on anti-tumor growth were examined. Among the three types of herbal extracts, H9 showed stronger anti-tumor growth effects than H5 and H11 in vivo. To find the molecular mechanism by which H9 inhibited the proliferation of breast cancer cell lines, the levels of apoptotic markers were examined. Proapoptotic markers, including cleaved PARP and cleaved caspases 3 and 9, were increased, whereas the anti-apoptotic marker Bcl-2 was decreased by H9 treatment. Next, the combined effect of H9 with the chemotherapeutic drugs doxorubicin/cyclophosphamide (AC) on tumor growth was examined using 4T1-tumor-bearing mice. The combined treatment of H9 with AC did not show additive or synergetic anti-tumor growth effects. However, when tumor-bearing mice were co-treated with H9 and the targeted anti-tumor drug trastuzumab, a delay in tumor growth was observed. The combined treatment of H9 and trastuzumab caused an increase of natural killer (NK) cells and a decrease of myeloid-derived suppressor cells (MDSC). Taken together, H9 induces the apoptotic death of tumor cells while increasing anti-tumor immune activity through the enhancement of NK activity and diminishment of MDSC.

Effect of Anti-apoptotic Agents in Recombinant Chinese Hamster Ovary Cell Expressing Iduronate 2-sulphatase

  • Jeon, Ok-Seon;Chun, Ju-Me;Kang, Seon-Ah;Lee, Sang-Jong;Chun, Gie-Taek;Chang, Yong-Keun;Jeong, Yeon-Ho
    • 한국생물공학회:학술대회논문집
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    • 2005.04a
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    • pp.210-213
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    • 2005
  • The suppression of apoptosis during the cell culture might increase recombinant protein production. In the present study, the effects of anti-apoptotic agents on the apoptosis of recombinant Chinese Hamster Ovary cells and the production of Iduronate 2-sulphatase(IDS) were investigated Cell density slightly increased when $2{\mu}M$ of EGCG and $10{\mu}g/mL$ of STR-G were added to culture medium after two days. It was observed that the percentage of apoptotic cells was decreased in the culture with STR-G, and Bcl-2 expression level was enhanced in both culture with STR-G and EGCG. These results suggest that G418 and EGCG are effective anti-apoptotic agents for increasing the productivity of IDS with recombinant CHO-DG44.

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Association of Anti-apoptotic Mechanism Due to House Dust Mite in Neutrophils with Protein Synthesis and Bad

  • Kim, In Sik;Lee, Ji-Sook
    • Biomedical Science Letters
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    • v.22 no.4
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    • pp.211-214
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    • 2016
  • House dust mite is an essential allergen in the pathogenesis of allergic diseases. Abnormal regulation of neutrophil apoptosis is an important pathogenic process in allergic diseases. In the present study, we investigated the effects of house dust mites on spontaneous apoptosis of neutrophils and its associated mechanisms. Extract of Dermatophagoides pteronissinus (DP) inhibited neutrophil apoptosis in a time-dependent manner. Cycloheximide (CHX), an inhibitor of translation, increased apoptosis of DP-treated neutrophils as well as control cells. The pro-apoptotic effect of CHX was blocked by DP in neutrophils. In addition, DP increased the phosphorylation of Bad in a time-dependent manner, indicating that it exerted an inhibitory effect on the function of Bad. These results suggest that DP has anti-apoptotic effects of neutrophils and may regulate protein synthesis and activation of Bad. Moreover, these findings may shed light on elucidation of allergy pathogenesis due to house dust mites.

Anti-lymphoma Activities of Phlojodicarpus sibiricus and Artemisia kruhsiana Besser Extracts (Phlojodicarpus sibiricus와 Artemisia kruhsiana Besser 추출물의 항림프종 효과 분석)

  • Kim, Jisu;Kim, Dong Uk;Nam, Jehyun;Jeon, Byeol Eun;Okhlopkova, Zhanna M.;Zulfugarov, Ismayil S.;Kim, Sang-Woo
    • Journal of Life Science
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    • v.30 no.4
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    • pp.379-385
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    • 2020
  • Phlojodicarpus sibiricus and Artemisia kruhsiana Besser are medicinal plants traditionally used in Russia. Phlojodicarpus sibiricus extracts (PSE) have been shown to have anti-obesity properties, and Artemisia kruhsiana Besser extracts (AKBE) contain terpenoid compounds that exert various medicinal effects. Here, we investigated the potential pro-apoptotic effects of PSE and AKBE in diffuse large B-cell lymphoma (DLBCL) and elucidated the underlying mechanism. PSE and AKBE treatment of six DLBCL cell lines with various genetic abnormalities effectively reduced cell viability in a dose-dependent manner, while having a minimal impact on the survival of normal murine bone marrow cells and splenocytes. This suggests that the cytotoxic effects of PSE and AKBE are specific to DLBCL cells. Therefore, we expect limited side effects when these plant extracts are administered to DLBCL patients. Our JC-1 assays demonstrate that the pro-apoptotic effects of these plant extracts are produced by a reduction of anti-apoptotic Bcl-2 family members and, thereby, disruption of the mitochondrial membrane potential. Moreover, PSE and AKBE induce cell death independently of Myc, whose abnormalities are frequently observed in patients with DLBCL and are associated with poor prognosis. Our findings reveal hitherto uncharacterized pro-apoptotic effects of PSE and AKBE in DLBCL. Isolation of single compounds with anti-lymphoma activities should be pursued further.