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Peran Asam Klorogenat Terhadap Ekspresi Gen; miRNA 146 A, Caspase 3, Cyclin D1, dan Kematian Sel Kanker Hepatoseluler Model Cell Lines Hep-G2 SUKOHAR, ASEP; HERAWATTI, HENING; WITARTO, ARIEF B
Indonesian Journal of Cancer Vol 8, No 1 (2014): Jan - Mar 2014
Publisher : "Dharmais" Cancer Center Hospital

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Chlorogenic acid (CA) is the active compound isolated from medicinal plants, can be used as a chemopreventive agents of hepatocellular cancer (HCC). It works as an exogenous antioxidant and inhibit growth of cancer cells through the inhibition of free radicals. The purpose of this study is to know mechanism of CA in inhibition to growth of Hep-G2 through apoptosis stimulation. In vitro study was performed Hep-G2 cells. The samples were divided into the control group treatment and experiment group expose to 727, 500 and 250 ?M and 3 times repetition. Expression of miRNA 146 A, caspase 3 and cyclin D1 examined by RT-PCR CFX-96. Samples were analysed at 0, 8, 18, and 24 hours after exposure CA. The data were statistically tested by repeated measurement, pearson, and multivariate regression. The results showed that cell death of Hep-G2 were increase as the dose increase and time, at 8 hours after exposure CA cell death of Hep-G2 increased as much as 35,68, 37,75, 40,86%. At 18 hours cell death of Hep-G2 increased as much as 54,56, 56,48, and 59,73%. At 24 hours cell death of Hep-G2 increased as much as 67,73, 69,37, and 72,16%. The lowest expression miRNA 146 A in group 24 hours after exposure at doses of 727 ?M CA (0,85), followed by 500 ?M (1,28) and the highest expression at a dose of 250 ?M (1,61). The result of repeated measurement test: miRNA 146 A and caspase 3 at 8th and 18th hours was significantly different to the 24th with p<0.05. The expression of caspase 3 increase from 0-24 hours, the highest expression of caspase 3 in group 18 hours after exposure at doses CA at 750 ?M (3,86). After 18 hours, expression caspase 3 decreased and the lowest in group 24 hours after exposure: at a dose of 250 ?M (1,52). Expression of cyclin D1 decrease from 0-24 hours with the highest expression at 0 hours (4,35) at a dose of 250 ?M and the lowest expression at 24 hours after exposure to CA (0,32) at a dose of 727 AK ?M.

Peran Asam Klorogenat Terhadap Ekspresi Gen; miRNA 146 A, Caspase 3, Cyclin D1, dan Kematian Sel Kanker Hepatoseluler Model Cell Lines Hep-G2 SUKOHAR, ASEP; HERAWATTI, HENING; WITARTO, ARIEF B
Indonesian Journal of Cancer Vol 8, No 1 (2014): Jan - Mar 2014
Publisher : Indonesian Journal of Cancer

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (636.82 KB)

Chlorogenic acid (CA) is the active compound isolated from medicinal plants, can be used as a chemopreventive agents of hepatocellular cancer (HCC). It works as an exogenous antioxidant and inhibit growth of cancer cells through the inhibition of free radicals. The purpose of this study is to know mechanism of CA in inhibition to growth of Hep-G2 through apoptosis stimulation. In vitro study was performed Hep-G2 cells. The samples were divided into the control group treatment and experiment group expose to 727, 500 and 250 ?M and 3 times repetition. Expression of miRNA 146 A, caspase 3 and cyclin D1 examined by RT-PCR CFX-96. Samples were analysed at 0, 8, 18, and 24 hours after exposure CA. The data were statistically tested by repeated measurement, pearson, and multivariate regression. The results showed that cell death of Hep-G2 were increase as the dose increase and time, at 8 hours after exposure CA cell death of Hep-G2 increased as much as 35,68, 37,75, 40,86%. At 18 hours cell death of Hep-G2 increased as much as 54,56, 56,48, and 59,73%. At 24 hours cell death of Hep-G2 increased as much as 67,73, 69,37, and 72,16%. The lowest expression miRNA 146 A in group 24 hours after exposure at doses of 727 ?M CA (0,85), followed by 500 ?M (1,28) and the highest expression at a dose of 250 ?M (1,61). The result of repeated measurement test: miRNA 146 A and caspase 3 at 8th and 18th hours was significantly different to the 24th with p<0.05. The expression of caspase 3 increase from 0-24 hours, the highest expression of caspase 3 in group 18 hours after exposure at doses CA at 750 ?M (3,86). After 18 hours, expression caspase 3 decreased and the lowest in group 24 hours after exposure: at a dose of 250 ?M (1,52). Expression of cyclin D1 decrease from 0-24 hours with the highest expression at 0 hours (4,35) at a dose of 250 ?M and the lowest expression at 24 hours after exposure to CA (0,32) at a dose of 727 AK ?M.

Anti Cancer Activity of Chitooligomers Sri Wahyuni; Fransisca Zakaria; Arief B Witarto; Dahrul Syah; Maggy T Suhartono
Jurnal Teknologi dan Industri Pangan Vol. 17 No. 1 (2006): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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The chitin obtained from the crab industries can be used as a source for production of chitooligomers which has an important biological activity. The aims of this research was to evaluate anti cancer activity of the chitooligomers obtained from enzymatic hydrolysis using chitosanase from thermophilic bacterium Bacillus licheniformis MB2 isolated from Tompaso Manado. Media for producing the enzyme contained colloidal chitosan 1% and the enzyme was harvested after seven days of incubation at 550C. The heat stable protein enzyme was coagulated with 80% saturated ammonium sulphate and purificated using hydrophobic interaction chromatography with butyl sepharose gel. Enzyme of 0.005, 0.0085, 0.10 dan 0,17 IU/mg chitosan on soluble chitosan 1% substrate with 85% degree of deacylation were used to produce chitooligomers through incubation for one and three hours. The reaction products were analyzed (and fractionated) using HPLC. The effect of this samples on cancer cells was evaluated using K562 cells (chronic myelogenous leukemia) and investigated after being treated with MTT (3-[4,5-Dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide). In general, hydrolysates and fractionated chitooligomers showed better anti cancer activity than the 2- Bromo deoxy uridine used as positive control at similiar concentration (17 ?g/ml). Both of hydrolysates and fractionated chitooligomers (trimer to hexamer) inhibited proliferation of human K562 cancer cells line in vitro about 20.57% and 15.68% respectively.The apoptosis phenomena was found on K562 cells treated with chitooligomer hydrolysate which can be examined by Hoechts staining fluorescent method. Chitooligomers hydrolysate showed anti metastatic potential, the chitooligomers were found also as potent protease inhibitor. Keywords : chitooligomers, chitosan, anticancer

Peran Asam Klorogenat Terhadap Ekspresi Gen; miRNA 146 A, Caspase 3, Cyclin D1, dan Kematian Sel Kanker Hepatoseluler Model Cell Lines Hep-G2 ASEP SUKOHAR; HENING HERAWATTI; ARIEF B WITARTO
Indonesian Journal of Cancer Vol 8, No 1 (2014): Jan - Mar 2014
Publisher : National Cancer Center - Dharmais Cancer Hospital

Chlorogenic acid (CA) is the active compound isolated from medicinal plants, can be used as a chemopreventive agents of hepatocellular cancer (HCC). It works as an exogenous antioxidant and inhibit growth of cancer cells through the inhibition of free radicals. The purpose of this study is to know mechanism of CA in inhibition to growth of Hep-G2 through apoptosis stimulation. In vitro study was performed Hep-G2 cells. The samples were divided into the control group treatment and experiment group expose to 727, 500 and 250 ?M and 3 times repetition. Expression of miRNA 146 A, caspase 3 and cyclin D1 examined by RT-PCR CFX-96. Samples were analysed at 0, 8, 18, and 24 hours after exposure CA. The data were statistically tested by repeated measurement, pearson, and multivariate regression. The results showed that cell death of Hep-G2 were increase as the dose increase and time, at 8 hours after exposure CA cell death of Hep-G2 increased as much as 35,68, 37,75, 40,86%. At 18 hours cell death of Hep-G2 increased as much as 54,56, 56,48, and 59,73%. At 24 hours cell death of Hep-G2 increased as much as 67,73, 69,37, and 72,16%. The lowest expression miRNA 146 A in group 24 hours after exposure at doses of 727 ?M CA (0,85), followed by 500 ?M (1,28) and the highest expression at a dose of 250 ?M (1,61). The result of repeated measurement test: miRNA 146 A and caspase 3 at 8th and 18th hours was significantly different to the 24th with p<0.05. The expression of caspase 3 increase from 0-24 hours, the highest expression of caspase 3 in group 18 hours after exposure at doses CA at 750 ?M (3,86). After 18 hours, expression caspase 3 decreased and the lowest in group 24 hours after exposure: at a dose of 250 ?M (1,52). Expression of cyclin D1 decrease from 0-24 hours with the highest expression at 0 hours (4,35) at a dose of 250 ?M and the lowest expression at 24 hours after exposure to CA (0,32) at a dose of 727 AK ?M.

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