Articles

Found 3 Documents
Search

Cytotoxic Activity of Tegari (Dianella nemorosa Lam.) Methanol Extract Against HeLa Cells Karim, Aditya Krishar; Sismindari, S.; Asmara, Widya; Istriyati, I.
Indonesian Journal of Biotechnology Vol 17, No 1 (2012)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.336 KB) | DOI: 10.22146/ijbiotech.7846

Abstract

Dianella nemorosa Lam. also known as tegari belonging to the Liliaceae family. This plant has been utilized for Papua traditional medicine as well as anticancer agent. This research examined potential cytotoxic activity of tegari (D. nemorosa) leaves extract against cervical cancer cell line (HeLa). Methanol extract was obtained by extracting the leaves powder using methanol. Extract was then applied into HeLa cell line to find out the cytotoxic activity. MTT [3-(4,5-dimetilthiazol-2-il)2,5-difeniltetrazolium bromida) assay was used to measure the cytotoxic activity. The result indicated that D. nemorosa leaves extract possessed cytotoxic activity in HeLa cell line with IC50 values were 685,69 µg/ml, 506,43 µg/ml and 708 µg/ml at the incubation period of 24, 48 and 72 h respectively. The strongest cytotoxic was showed by methanol extract incubated in 48 h.
Formulation of Medium Viscosity Chitosan-Pectin –MJ Protein Nanoparticles Conjugated with Anti-Ep-CAM and Its Cytotoxicity Against T47D Breast Cancer Cell Lines Feranisa, Anggun; Arimurni, Dewa Ayu; Ismail, Hilda; Martien, Ronny; Sismindari, S.
Indonesian Journal of Biotechnology Vol 20, No 1 (2015)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (335.516 KB) | DOI: 10.22146/ijbiotech.15283

Abstract

Chitosan nanoparticle could become potential formula to protect protein degradation during therapy,since chitosan nanoparticles have “proton sponge hypothesis” mechanism on its protection. Chitosan and pectinis used as basic formula of drug delivery because of its biodegradable and biocompatible properties. Chitosanpectin nanoparticles can be formulated by polyelectrolit complex. EpCAM showed excessive expression inepithelial cancer cells thus can be used as a therapeutic biomarker. MJ protein, a Ribosome-Inactivating Proteins(RIPs) isolated from Mirabilis jalapa L had a higher cytotoxicity on malignant cells than normal cells. MJ proteinneed to be formulated to protect from proteosome degradation in endosome. The aim of this research was todevelop MJ protein-chitosan-pectin nanoparticles and conjugated with anti EpCAM for breast cancer therapy.Mj protein was extracted from M.jalapa leaves. RIPs activity was assayed by supercoiled DNA cleavage. MJprotein were loaded into chitosan nanoparticles using medium viscous chitosan and pectin as cross-linker withpolyelectrolit complex method. Anti EpCAM was conjugated to MJ protein-chitosan-pectin nanoparticles bycarbodiimide reaction and characterized for its entrapment efficiency, morphology by transmission electronmicroscope, particles size, and zeta potential. MJ protein nanoparticles conjugated anti EpCAM and withoutanti EpCAM were cytotoxicity assayed toward T47D and Vero cell lines. MJ protein was able to cleave thesupercoiled DNA into linear and nicked-circular ones. The nanoparticles optimal concentration of mediumviscous chitosan: MJ protein: pectin was 0.01%: 0.01%: 1% (m/v). A high entrapment efficiency of MJ proteinnanoparticles was 98.97 ± 0.07%. Morphology nanoparticles showed an amorphic structure with 200.00 nmparticles size. The nanoparticles conjugated anti EpCAM showed average particles size 367.67nm, polydispersityindex 0.332, and zeta potential +39.97mV. MJ protein-chitosan-pectin nanoparticles conjugated anti EpCAMand unconjugated both had higher cytotoxicity with the IC50 57.64 μg/mL and 46.84 μg/mL respectivelyagainst T47D and 99.38 μg/mL and 111.34 μg/mL against Vero cell lines compared to MJ protein with IC50 of3075.61 μg/mL against T47D and 3286.88 μg/mL against Vero cell lines. Both MJ protein-nanoparticles couldincrease the cytotoxicity effects about 50 times compared to the unformulated MJ protein activity, howeverhad less specificity toward T47D and Vero cell lines.
Impact of Curcuma mangga Val. Rhizome Essential Oil to p53, Bcl-2, H-Ras and Caspase-9 expression of Myeloma Cell Line Astuti, Endang; Sunarminingsih, Retno; Jenie, Umar Anggara; Mubarika, Sofia; Sismindari, S.
Indonesian Journal of Biotechnology Vol 19, No 1 (2014)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (492.993 KB) | DOI: 10.22146/ijbiotech.8631

Abstract

Cancer is a disease, a public health problem, which is found in the world as well as in Indonesia. Ingeneral, some of cancer theraphies are ineffective, characterized by the resistance performance of cancer cell line,the exposed normal cell and by the side effects. Nowadays, studies to fi nd the specifi c and safely anti-cancerdrugs were increased by the time. Several studies revealed that Curcuma mangga Val. Rhizome contains somesecondary metabolites, essential or non-essential oil, which has cytotoxic activities to the cancer cells. Basedon these anti-cancer potentials, this study has several aims to recognize anti-cancer selectivity and molecularmechanism by inducting apoptosis and inhibiting myeloma cell proliferation. To C. mangga Val. essential oil,immunocyto chemical test was performed to determine the expression of p53, caspase-9, Bcl-2, H-Ras proteinwhile TUNEL test was performed to determine the number of apoptosis cells.The results of this study shown that anti-cancer molecular mechanism of C. mangga Val. essential oil tomyeloma cell line was performed by increasing apoptosis; by increasing the expression of pro-apoptosis p53,caspase-9 protein and reducing protein which is increasing proliferation Bcl-2 and H-Ras.