• 제목/요약/키워드: Cytotoxic Effect

검색결과 1,310건 처리시간 0.03초

음곡(陰谷)($KI_{10}$)에 시술한 골쇄보(骨碎補) 약침(藥鍼)이 난소적출 흰쥐의 골다공증에 미치는 영향 (A Study on the Effect of Herbal-acupuncture with Drynariae Rhizoma Infusion Solution at Umgok($KI_{10}$) on Osteoporotic Rats Induced by Ovariectomy)

  • 오치석;이현
    • Journal of Acupuncture Research
    • /
    • 제25권3호
    • /
    • pp.71-86
    • /
    • 2008
  • Objectives & Methods : The purpose of this study is to observe the effects of Drynariae Rhizoma Herbal-acupuncture infusion solution at Umgok($KI_{10}$) on Osteoporotic Rats Induced by Ovariectomy. The author performed several experimental items to analyze cytotoxic, osteoporosis evaluation, change of ALP, osteocalcin, Ca and histological change of tibia. Results : 1. BMD were increased meaningly in DR-HA than control group. 2. ALP was not inhibited by DR-HA, osteocalcin was decreased meaningly in DR-HA. 3. Osteoclast like cell in tibia was increased meaningly in control group, decreased meaningly in DR-HA. 4. In the histological study in tibia, TBV and TBT were significantly increased, GPL was significantly decreased in the DR-HA than control group. Conclusions : From the result above, the results suggest that DR-HA at $KI_{10}$ has significant effect on osteoporosis, and to be put to practical use in the future osteoporosis clinic.

  • PDF

평위산(平胃散) 약침액(藥鍼液)의 활성산소 및 활성질소 소거능 (Scavenging Property of Pyungwi-san Herbal-acupuncture Solution on ROS and RNS)

  • 이효승;문진영
    • 동의생리병리학회지
    • /
    • 제21권1호
    • /
    • pp.165-170
    • /
    • 2007
  • Pyungwi-san(PWS) have been using as a basic prescription of digestive disorder in Korean traditional medicine. This study was performed to examine the in vitro antioxidant activity of the extract using different antioxidant tests including by 1,1-diphenyl-2-picryl-hydrazil (DPPH) radical scavenging, superoxide anion radical scavenging, metal chelating hydrogen peroxide scavenging, lipid peroxydation protective effect and scavenging effect of nitric oxide and peroxynitrite. Herbal-acupuncture solution of PWS(PWS-HS) exhibited a concentration-dependent inhibition of DPPH radical adduct formation and it showed dose-dependent free radical scavenging activity onto superoxide anions. In addition, the result of metal chelating hydrogen peroxide scavenging and ammonium thiocyanate experiments showed that PWS-HS was an active scavenger of hydroxyl radicals. Furthermore, it was also found to be effective in scavenging nitric oxide and peroxynitrite, well-known cytotoxic species that can oxidize several cellular components such as proteins, lipids and DNA.

Tyndallized Lactobacillus plantarum HY7712 Restores Whole-Body γ-Irradiation-Impaired Th Cell Differentiation in Mice

  • Jang, Se-Eun;Ko, Da-Bin;Ahn, Young-Tae;Sim, Jae-Hun;Kim, Cha Soon;Kim, Dong-Hyun
    • Journal of Microbiology and Biotechnology
    • /
    • 제27권12호
    • /
    • pp.2237-2240
    • /
    • 2017
  • In the present study, we investigated the effect of tyndallized HY7712 (tHY7712) on the expression of Th cell specific transcription factors and cytokines in whole-body ${\gamma}$-irradiated mice. Oral administration of tHY7712 strongly recovered the ${\gamma}$-irradiation-suppressed expression of helper T (Th) cell- and regulatory T cell-related transcription factors and cytokines, such as T-bet, Foxp3, IFN-${\gamma}$, TNF-${\alpha}$, and IL-10, and suppressed Th2 cell-associated transcription factor and cytokine GATA3 and IL-5, respectively. Furthermore, compared with the control, tHY7712 treatment also restored ${\gamma}$-irradiation-impaired natural killer and cytotoxic T cell activities against YAC-1 tumor cells to 97.8% and 98.6%, respectively.

Agrobacterium sp. R259 KCTC 10197BP로부터 생산된 $\beta$-1, 3-glucan의 면역 활성 효능 (Immune Stimulating Efficacy of Insoluble $\beta$-l, 3-glucan from Agrobacterium sp. R259 KCTC 10197BP)

  • 심정현;최원아;상병찬;윤도영
    • 약학회지
    • /
    • 제46권6호
    • /
    • pp.459-465
    • /
    • 2002
  • $\beta$-l, 3-glucans are well known to enhance the immune reactions, resulting in antitumor, antibacterial, antiviral, anticoagulatory and wound healing activities. $\beta$-1, 3-glucans have various activities depending on molecular weight, degree of branching, conformation, water-solubility and intermolecular association. However, the $\beta$-1, 3-glucans linked backbone structure is essential and $\beta$-D-glucopyranosyl units are required for immunopotentiating activities. In this study, we tested the immunophamacological activities of insoluble $\beta$-1, 3-glucan from Agrobacterium sp. R259 KCTC 10197BP and confirmed the following activities: (1) IFN-${\gamma}$ production in PBMCs in the presence or in the absence of PHA, LPS, IL-18, and IL-12; (2) the induction of various cytokines in the spleen and thymus; (3) the adjuvant effect on the antibody production; (4) the cytotoxic and antitumor effects on cell lines and ICR mice. These results strongly suggest that $\beta$-1, 3-glucan from Agrobacterium sp. R259 KCTC 10197BP possesses various immunopharmacologica1 activities.

측백추출물에 따른 발모 효능에 대한 연구 (Hair Growth Promoting Effect of Thuja orientalis Ethanol Extracts on Hair Loss-induced DBA1J Mice)

  • 김용준;정헌철;정헌택;채규윤;윤용갑;장선일
    • 동의생리병리학회지
    • /
    • 제18권5호
    • /
    • pp.1471-1475
    • /
    • 2004
  • Thuja orientalis extract (TOS) has been used on the hemostatic roborant, sedatives and stressless in oriental countries. We investigate the inhibitory effects on the productions of pro-inflammatory cytokines such as interleukin-1beta (IL-1β), IL-6, tumour necrosis factor alpha (TNF-α), and nitric oxide (NO) and the hair promotiont of TOS in the macrophage celline RAW264.7 or hair loss-induced DBA1J mice. T08 (50-500 ㎍/㎖) per se had no cytotoxic effect non-stimulated cells, but this extracts concentration-dependently reduced the release of NO, (IL-1β), IL-6, and TNF-α in the stimulate RAW264.7 cells with lipopolysaccharide (LPS). Moreover, when applied TOS (500 ㎍/㎖) to DBA 1J/mice, hair growth was promoted remarkably. These data suggest that T08 promotes hair growth on hair loss induced model mice and these properties may contribute to the anti- hair loss activity of the Thuja orientalis.

오령지 물추출물이 혈관내피세포의 chemokine 생성에 미치는 영향 (Effects of Faeces Trogopterori on the Production of Chemokine in HUVECs)

  • 문창민;권강범;유도곤
    • 동의생리병리학회지
    • /
    • 제24권5호
    • /
    • pp.822-826
    • /
    • 2010
  • In order to validate the use of Faeces Trogopterori as an anti-inflammatory drug in the traditional Korean medicine, I have investigated the effect of water-soluble extract of F. Trogopterori (EFT) on the production of monocyte chemoattractant protein-1 (MCP-1), of which chemokine stimulates the migration of mononuclear cells, in human umbilical vein endothelial cells (HUVECs) stimulated with tumor necrosis factor-alpha. The extract inhibited dose-dependently MCP-1 production without its cytotoxic effect on HUVECs, as measured by enzyme-linked immunosorbent assay, and significantly decreased mRNA levels of MCP-1, as determined using reverse transcription polymerase chain reaction. These results suggest that F. Trogopterori may have therapeutic potential in the control of endothelial disorders caused by inflammation.

Possible Mechanism Underlying the Antiherpetic Activity of a Proteoglycan Isolated from the Mycelia of Ganoderma lucidum in Vitro

  • Li, Zubing;Liu, Jing;Zhao, Yifang
    • BMB Reports
    • /
    • 제38권1호
    • /
    • pp.34-40
    • /
    • 2005
  • GLPG (Ganoderma lucidum proteoglycan) was a bioactive fraction obtained by the liquid fermentation of the mycelia of Ganoderma lucidum, EtOH precipitation, and DEAE-cellulose column chromatography. GLPG was a proteoglycan with a carbohydrate: protein ratio of 10.4: 1. Its antiviral activities against herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) were investigated using a cytopathic inhibition assay. GLPG inhibited cell death in a dose-dependent manner in HSV-infected cells. In addition, it had no cytotoxic effect even at 2 mg/ml. In order to study the mode of action of the antiviral activity of GLPG, cells were treated with GLPG before, during, and after infection, and viral titer in the supernatant of cell culture 48 h post-infection was determined using a $TCID_{50}$ assay. The antiviral effects of GLPG were more remarkable before viral treatment than after treatment. Although the precise mechanism has yet to be defined, our work suggests that GLPG inhibits viral replication by interfering with the early events of viral adsorption and entry into target cells. Thus, this proteoglycan appears to be a candidate anti-HSV agent.

패독산류의 구강편평세포암종 및 악성중피종에 대한 항암 활성 (Anticancer Effect of Paedoksans for Oral Squamous Cell Carcinoma and Malignant Pleural Mesothelioma)

  • 오하나;김현정;채정일;심정현;윤구
    • 생약학회지
    • /
    • 제48권3호
    • /
    • pp.213-218
    • /
    • 2017
  • In order to search for anticancer agent as therapy of oral squamous cell carcinoma (OSCC) and malignant pleural mesothelioma (MPM) from Korean traditional prescriptions, we selected 58 traditional prescriptions based on a review of the Korean traditional medicine books. Among the selected traditional prescriptions, only water extracts of paedoksan (敗毒散) showed relatively good cytotoxicity at the concentration of $50{\mu}g/ml$. Additionally, we evaluated cytotoxicity for various paedoksans and each herbal ingredient in paedoksans. The root of Anthriscus sylvestris exhibited more cytotoxic effect than any other ingredients in paedoksans. Bioactivity-guided fractionation of the MC layer of Anthriscus sylvestris led to the isolation of deoxypodophyllotoxin (DPT). DPT exhibited dose-dependently significant cytotoxicity against OSCC and MPM cell with nM range. Therefore, DPT from A. sylvestris might be a potential candidate as an effective anticancer therapeutic agent for OSCC and MPM.

반모가 대장암세포에 미치는 영향 (Effect of Mylabris phalerata on colorectaladenocarcinoma cells (SNU-C5 cell lines))

  • 김진성;윤상협;류봉하;류기원;김현일
    • 대한한방내과학회지
    • /
    • 제25권2호
    • /
    • pp.214-223
    • /
    • 2004
  • The study examines the anti-cancer effects of the hot water extract of Mylabris phalerata(MP) using SNU-C5 cell lines. Microscopic analysis showed that 12 hours after MP treatment, the number of dead cells increased prominently. Significant cell death was observed 12, 24, and 48 hours after MP treatment through trypan blue exclusion testing. This suggests that MP is time-dependently cytotoxic. Mitotracker Red CMXRos staining and flowcytometry revealed that MP decreased mitochondrial membrane potentials. The absence of peaks on PI staining showed that DNA damage occurred in MP treated cells. Taken together, measurements suggest that MP has a strong anti-cancer effect on SNU-5 cell lines, and that this is likely to be due to the destruction of mitochondria and DNA damage.

  • PDF

Novel Macrolide Actin-inhibitors Isolated from Sea Sponges

  • Karaki, Hideaki;Ozaki, Hiroshi
    • Toxicological Research
    • /
    • 제17권
    • /
    • pp.105-108
    • /
    • 2001
  • Several marine toxins with macrolide structure have been found to act on actin. One of these toxins is mycalolide B isolated from the genus Mycale. This compound belongs to macrolide antibiotics and consists of tris-oxazole with strong cytotoxic activity ($IC_{50}$: 10-50 nM for growth of L1210 murine leukemia cells). This compound was found to be an actin-depolymerizing agent with the mode of action distinct from that of the known actin inhibitor, cytochalasin D. Tolytoxin, a macrolide isolated from cyano-bacteria with similar chemical structure to mycalolide B, seems to have similar effect. Another macrolide compound, aplyronine A, showed the effects similar to those of mycalolide B. Although bistheonellide A, a dimeric macrolide, did not show a severing effect, it de polymerized F-actin and sequestered G-actin by forming 1 : 2 complex with G-actins. Swinholide A has a structure and effects similar to those of bistheonel-lide A. In conclusion, mycalolide B, tolytoxin, aplyronine A, bistheonellide A and swinholide A are the members of "actin de polymerizing macrolide" the mechanism of which is different from that of cytochalasin D.halasin D.

  • PDF