Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
Marine-derived fungi have proven to be a rich source of cytotoxic compounds for the development of new anti cancer drugs. The aims of this research were to: 1) screen cytotoxic activity of marine fungi from Indonesian waters, 2) indentify marine fungus that produced that produced the most active cytotoxic compound and 3) investigate inhibition concentration 50 (IC50) value of cytotoxic compound. The fungi were isolated from marine organism collected from Wakatobi Marine National Park-South East Sulawesi, Binuangeun Beach-Banten, Manado watersNorth Sulawesi and Kepulauan Seribu Marine National Park-Jakarta. Liquid cultures of the fungi were carried out in Malt Extract Broth and Soluble Starch Soytone medium for 4 weeks at 27?28oC without shaking. Molecular identification of fungus was conducted through PCR amplificatin using primers of ITS1 and ITS4 primer. Cytotoxic activity of the extract was tested by using MTT (3-(4.4-dimethylthiazol-2-yl)-2.5-diphenyl-tetrazolium bromide) method. The MTT test showed that MFW39 strain exhibited the strongest cytotoxic activity. Molecular identification revealed that MFW39 marine fungus was similar to Emericella nidulans with precent identity of 99%. Mycelium and broth extract of MFW39 fungus inhibited the growth of T47D cell with IC 50 values of 21.9 and 169.3 µg/mL, respectively. Further research will be focus on to the strain of MFW39 marine fungi.

Abstrak :
ABSTRAK
Kapang dari lingkungan laut (marine derived fungi) salahsatunya adalah Emericella nidulans diketahui menghasilkan senyawa aktif emestrin. Penelitian ini bertujuan untuk mengisolasi senyawa target selain senyawa emestrin dari fraksi teraktif yang dihasilkan oleh ekstrak miselium kapang laut Emericella nidulans, mengetahui efek sitotoksik senyawa target tersebut terhadap sel kanker payudara (T47D) dan sel kanker leher rahim (HeLa). Selain itu, penelitian ini juga bertujuan untuk melakukan produkasi senyawa target. Produksi senyawa target dari kapang laut Emericella nidulans, dilakukan dengan tiga medium fermentasi yang berbeda yaitu Malt Ekstract Broth (MEB), Soluble Starch Soytone (SWS) dan Minimum Fungi Medium (MFM). Waktu yang digunakan untuk fermentasi produksi senyawa target adalah 1, 2, 3, 4 dan 5 minggu. Senyawa target selain emestrin berhasil diisolasi dari ekstrak miselium Emericella nidulans. Senyawa target yang diisolasi memiliki perbedaan dengan emestrin berdasarkan nilai rf pada KLT, serapan UV dan 1H-NMR. Senyawa target memiliki aktitas sitotoksik yang kuat terhadap sel HeLa dan sel T47D dengan IC50 berturut-turut sebesar 21,2 dan 20,9 μg/ml. Hasil produksi senyawa target paling baik dihasilkan di medium Malt Ekstract Broth (MEB) pada minggu ke-3.

---

Abstract
Marine fungi Emericella nidulans has known as its emestrin active compound. In this present study, we focused on extracting coumpounds beside emestrin as the most targeted coumpound isolated from mycelium marine fungi Emericella nidulans in cervix cancer cell (HeLa) and breast cancer cell (T47D). Productions from the targeted compound were seeding in fermented media Malt Extract Broth (MEB), Soluble Starch Soytone (SWS) and Minimum Fungi Medium (MFM). The timing production of fermenting compound were 1,2,3, 4 and 5 weeks. The targeted compound beside emestrin has been successfully isolated from Emericella nidulans mycelium. The targeted compound was different with emestrin base on rf value on TLC, UV and 1H-NMR spectrum. The targeted compound showed has a cytoxic activity against HeLa and T47D cell with IC50 value of 21,5 μg/ml and 20,9 μg/ml respectively. The highest yield of the targeted compound was found in MEB after 3 week of fermentation.