• Title/Summary/Keyword: MTT method.

Search Result 420, Processing Time 0.022 seconds

Neuroprotective Activity of Fermented Oyaksungisan (오약순기산 발효물의 성분 분석 및 뇌세포 보호 활성)

  • Weon, Jin-Bae;Ma, Jin-Yeul;Yang, Hye-Jin;Ma, Choong-Je
    • Korean Journal of Pharmacognosy
    • /
    • v.42 no.1
    • /
    • pp.22-26
    • /
    • 2011
  • Korean traditional prescription, Oyaksungisan was usually used to treat rheumatoid arthritis, paralysis. In this study, we compared the contents of five major components, ephedrine HCl, ferulic acid, hesperidin, 6-gingerol, glycyrrhizin and various unknown compounds in Ohyaksungisan (OY) with fermented Ohyaksungisan (FOY) by established HPLC-DAD method. The neuroprotective activity against glutamate-induced cytotoxicity in HT22 cell of OY and FOY was investigated by MTT assay. And anti-oxidative activity of OY and FOY was measured by DPPH radical, hydrogen peroxide and hydroxyl radical scavenging activity. After fermentation, contents of five major components and some unknown compounds (1), (2), (3) and (4) were increased in FOY. Also, FOY showed more potent neuroprotective activity. Furthermore, anti-oxidative activity of FOY was increased. In conclusion, the fermentation of OY could change contents various compounds and improved its neuroprotective activity.

Anti-Inflammatory Effects of Xanthoceras sorbifolia Seeds Oil on RAW264.7 Macrophages and TPA-Induced Ear Edema Mice (RAW264.7 대식세포와 급성염증유발 동물모델에서 문관나무 종자유의 염증억제 효과)

  • Jeong, Hye Jeong;Lee, Ki Yeon;Hong, Soo Young;Heo, Nam Ki;Kim, Hee Yeon
    • Journal of Forest and Environmental Science
    • /
    • v.29 no.4
    • /
    • pp.324-330
    • /
    • 2013
  • This study investigated the anti-inflammatory effects of Xanthoceras sorbifolia of seeds oil on RAW264.7 macrophages and TPA (12-O-tetra decanoylphorbol-acetate)-induced ear edema mice. MTT assay method to measure cytotoxicity was formed in RAW264.7 cell. The anti-inflammatory effect was measured by ability to inhibit production nitric oxide (NO) in RAW264.7 cell. Hexane and eight-percent methanol fractions from Xanthoceras sorbifolia seeds oil did not show cytotoxicity. Hexane and eight-percent methanol fractions were showed significantly inhibitory effect on NO production. TPA-induced acute edema was developed in the mouse ears, and Xanthoceras sorbifolia seeds oil dissolved in acetone was applied to inflamed ears. It was found out that Xanthoceras sorbifolia seeds oil could significantly reduce th ear swelling, compared to the control. Overall results indicate that the Xanthoceras sorbifolia seeds oil has anti-inflammatory activity and could be used as a resource of anti-inflammatory materials.

Anti-Proliferative Activity and Apoptosis Induction of an Ethanolic Extract of Boesenbergia pandurata (Roxb.) Schlecht. against HeLa and Vero Cell Lines

  • Listyawati, Shanti;Sismindari, Sismindari;Mubarika, Sofia;Murti, Yosi Bayu;Ikawati, Muthi
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.17 no.1
    • /
    • pp.183-187
    • /
    • 2016
  • Rhizomes of Boesenbergia pandurata (Roxb.) Schlecht have been reported to contain active compounds with anticancer properties. This research was carried out to examine anti-proliferative and apoptotic induction against HeLa and Vero cells-line. Dried powder of B. pandurata rhizomes was extracted by a maceration method using 90% ethanol. Cytotoxic assays to determine $IC_{50}$ and anti-proliferative effects were carried out by MTT methods. Observation of apoptosis was achieved with double staining using acridine orange and ethidium bromide. The results showed that ethanolic extract of B. pandurata was more cytotoxic against HeLa cells ($IC_{50}$ of $60{\mu}g/mL$) than Vero cells ($IC_{50}$ of $125{\mu}g/mL$). The extract had higher anti-proliferative activity as well as apoptotic induction in HeLa than Vero cells. Therefore, it was concluded that the ethanolic extract of B. pandurata had anti-proliferative as well as apoptosis induction activity dependent on the cell type.

The Synergistic Anticancer Effect of Artesunate Combined with Allicin in Osteosarcoma Cell Line in Vitro and in Vivo

  • Jiang, Wei;Huang, Yong;Wang, Jing-Peng;Yu, Xiao-Yun;Zhang, Lin-Yi
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.14 no.8
    • /
    • pp.4615-4619
    • /
    • 2013
  • Background: Artesunate, extracted from Artemisia annua, has been proven to have anti-cancer potential. Allicin, diallyl thiosulfinate, the main biologically active compound derived from garlic, is also of interest in cancer treatment research. This object of this report was to document synergistic effects of artesunate combined with allicin on osteosarcoma cell lines in vitro and in vivo. Methods: After treatment with artesunate and allicin at various concentrations, the viability of osteosarcoma cells was analyzed by MTT method, with assessment of invasion and motility, colony formation and apoptosis. Western Blotting was performed to determine the expression of caspase-3/9, and activity was also detected after drug treatment. Moreover, in a nude mouse model established with orthotopic xenograft tumors, tumor weight and volume were monitored after drug administration via the intraperitoneal (i.p.) route. Results: The viability of osteosarcoma cells in the combination group was significantly decreased in a concentration and time dependent manner; moreover, invasion, motility and colony formation ability were significantly suppressed and the apoptotic rate was significantly increased through caspase-3/9 expression and activity enhancement in the combination group. Furthermore, suppression of tumor growth was evident in vivo. Conclusion: Our results indicated that artesunate and allicin in combination exert synergistic effects on osteosarcoma cell proliferation and apoptosis.

Enhanced Anti-tumor Efficacy of Aspirin Combined with Triptolide in Cervical Cancer Cells

  • Chen, Rong-Hui;Tian, Yong-Jie
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.14 no.5
    • /
    • pp.3041-3044
    • /
    • 2013
  • Background: The non-steroidal anti-inflammatory drug (NSAID) aspirin (acetylsalicylic acid) is an inhibitor of cyclooxygenase enzymes. Recent studies have shown that aspirin could be used as an anti-tumor drug. Triptolide, the major compound extracted from the Chinese herb Tripteryglum wilfordii Hook.f, has now been shown that it can inhibit tumor growth. The aim of this study was to analyze the anti-tumor efficiency of aspirin and triptolide in cervical cancer cells. Methods: Viability of cervical cancer cell lines was assessed by the MTT method at various concentrations of aspirin and triptolide. Siha and HeLa cell apoptotic analysis was performed by flow cytometry. Real time-PCR and Western Blotting were used to analyze the expression of Bcl-2/Bax, Cyclin D1 and p16. Results: Viability in the combination group was significantly decreased as compared with either drug used alone. Expression change of Bcl-2/Bax, CyclinD1 and p16 appeared to play an important role in the synergistic killing effect on cervical cancer cell apoptosis. Conclusion: Aspirin and triptolide combination treatment may have synergistic anti-tumor effects on cervical cancer cells.

The Effects of Saussurea Radix and Plantaginis Herba on Cellular Viability, Proliferation, Apoptosis and Expression of Cell Cycle-related Genes in Gastric Cancer Cells (목향(木香)과 차전초(車前草)가 위암세포(胃癌細胞)의 활성(活性), 증식(增殖), 자기살해능(自己殺害能) 및 세포주기관련 유전자 발현에 미치는 영향)

  • Oh, Hee-Rah;Ko, Seong-Gyu
    • THE JOURNAL OF KOREAN ORIENTAL ONCOLOGY
    • /
    • v.7 no.1
    • /
    • pp.1-18
    • /
    • 2001
  • Objective: This experimental study was carried out to evaluate the effects of Saussurea Radix and Plantaginis Herba on cellular viability, proliferation, apoptosis and expression of the cell cycle-related genes in cultured gastric cancer cells. Method :MTT assay for analysis of cellular toxicity and the effect on suppression of cellular viability, $[^{3}H]$ thymidine incorporation assay for evaluation of the effect on suppression of DNA replication, tryphan blue exclusion assay for measurement of induction of apoptosis and Quantitative RT-PCR for analysis of the effects on expression of cell cycle or apoptosis-related genes were performed. Results: Antitumor activity of Saussurea Radix associated with inhibition of cell cycle progression and promotion of apoptosis caused by transcriptional regulation of p53, p21/Wafl and the other related genes was observed.

  • PDF

Antibacterial Effect of Huanggeumjakyak-tang against Methicillin-resistant Staphylococcus aureus (황금작약탕(黃芩芍藥湯)의 MRSA에 대한 항균활성에 관한 연구)

  • Kim, Esther;Choi, Chonghwan;Kim, Ilhyun;Lee, Hail;Song, Yungsun
    • Journal of Korean Medicine Rehabilitation
    • /
    • v.23 no.3
    • /
    • pp.15-26
    • /
    • 2013
  • Objectives The aim of this study was to investigate antimicrobial activity of Huanggeumjakyak- tang water extract against MRSA. Methods The antibacterial activities of Huanggeumjakyak-tang were evaluated against 3 strains of Methicillin-resistant Staphylococcus aureus (MRSA) and 1 standard Methicillinsusceptible S. aureus (MSSA) strain by using the disc diffusion method, minimal inhibitory concentrations (MICs) assay, colorimetric assay using MTT test, checkerboard dilution test and time-kill assay was performed under dark. Results The MIC (minimum inhibitory concentration) of Huanggeumjakyak-tang water extract against S. aureus strains ranged from 1,000 to $2,000{\mu}g/ml$. So we confirmed that it has a strong antibacterial effect. Also the combinations of Huanggeumjakyak-tang water extract and conventional antibiotics exhibited improved inhibition of MRSA with synergy effect. Conclusions The results obtained in this study suggest that Huanggeumjakyak-tang water extract showed antibacterial effect against MRSA, and it also showed reducing effect on the side-effect problems that are the major weak points of traditional antibiotics.

Investigation of effects of newly synthesized Pt(II) complex against human serum albumin and leukemia cell line of K562

  • Divsalar, Adeleh;Saboury, Ali A.;Ahadi, Leila;Zemanatiyar, Elham;Mansouri-Torshizi, Hassan
    • BMB Reports
    • /
    • v.43 no.11
    • /
    • pp.766-771
    • /
    • 2010
  • The biological evaluation of a new synthesized Pt(II)-complex, 2,2'-bipyridin Butylglycinato Pt(II) nitrate, an anti-tumor component, was studied at different temperatures by fluorescence and far UV circular dichroism (CD) spectroscopic methods. Human serum albumin (HSA) and human tumor cell line K562 were as targets. The Pt(II)-complex has a strong ability to quench the intrinsic fluorescence of HSA. Binding and thermodynamic parameters of the interaction were calculated by fluorescence quenching method. Far-UV-CD results showed that Pt(II)-complex induced increasing in content of $\alpha$ helical structure of the protein and stabilized it. The 50% cytotoxic concentration ($Cc_{50}$) of complex was determined using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay at different incubation times. Also, fluorescence staining with DAPI (4,6-diamidino-2-phenylindole) revealed some typical nuclear changes, which are characteristic of apoptosis. Above results suggest that Pt (II) complex is a promising anti-proliferative agent and should execute its biological effects by inducing apoptosis.

Effects of 3-Amino-1,2,4 Triazole and Diethyldithiocarbamate on Paraquat Toxicity in Rats (흰쥐에서 Aminotriazole과 Diethyldithiocarbamate가 Paraquat의 독성에 미치는 영향)

  • 차종희;고광삼
    • Toxicological Research
    • /
    • v.13 no.4
    • /
    • pp.393-400
    • /
    • 1997
  • The effects of superoxide dismutase(SOD) and catalase on the toxicity of paraquat(PQ) were studied using diethyldithiocarbamate(DDC), 3-amino-1,2,4-triazole(AT) which are inhibitors of Cu, Zn-SOD and catalase in rats. Sprague Dawley rats were divide into 6 groups: control, DDC, PQ, AT, DDC+PQ, and AT+PQ group. The PQ (50 mg/kg body weight(BW); about half dose of $LD_{50}$) was administered with orally, otherwise AT(1.0g/kg BW) and DDC(1.0g/kg BW) were administered by intrperitoneal(iP) injection. The survival rate of rats in PQ+AT group was significantly decreased compared with PQ group while the difference of survival rate between DDC group and DDC+PQ group was not significant. The SOD activity after administration of DDC was decreased in liver, lung and kidney, but catalase activity was not changed. The catalase activity in liver, lung and kidney of AT treated rats was decreased, while SOD activity was not changed in this group. The effects of DDC and AT to the PQ toxicity was also observed in primary cultured rat Skin fibroblasts. The viable cells that was measured with MTT method, was decreased in AT+PQ treated group compared to PQ treated group, but the difference of cell viability between DDC treat group and DDC+PQ treated group was not observed. This result, AT potentlate PQ toxicity while DDC were not affect, suggested that the decreased catalase activity lead to elevation of hydrogen peroxide levels and PQ toxicity may be correlate with the hydrogen peroxide rather than the superoxides.

  • PDF

Inhibition of Cervical Cancer Cell Growth by Gene Silencing of HPV16 E6 Induced by Short-interfering RNA

  • Park, Sang-Muk;Lee, Sun-Kyung;Kim, Yoon-Sik
    • Korean Journal of Clinical Laboratory Science
    • /
    • v.43 no.3
    • /
    • pp.89-97
    • /
    • 2011
  • The Human Papilloma Virus (HPV) infection has been strongly associated with pathogenesis of uterine cervix carcinoma. HPV type 16, a causative agent of uterine cervix carcinoma, encodes the E6 and E7 oncogenes, expression of which is pivotal for malignant transformation and maintenance of malignant phenotypes. To develop a gene therapy for HPV-related carcinoma, We investigated the effect of E6 short-interfering RNA (E6 siRNA) on the expression of this oncogene and on the growth of HPV 16-related uterine cervix carcinoma cells. SiHa cells, a uterine cervix carcinoma cell line, which contain a single copy of HPV 16 integrated in the chromosome and express the E6 and E7 oncogenes. Before 24 hr of transfection, cells were seeded and transfected with control plasmid or E6 siRNA-expressing plasmid. The mRNA was analysed by reverse transcriptase polymerase chain reaction (RT-PCR). The cell growth rate was investigated by MTT method. The E6 mRNA level in SiHa cells was decreased in HPV 16 E6 siRNA-expression vector transfected cells and a decrease in the growth of these cells was also observed. From these results. it is evident that E6 siRNA played a role in suppression of growth of SiHa cells and has a fair chance as a candidate for gene specific therapy for HPV related uterine cervix carcinoma.

  • PDF