title: Production of a Novel Fucoidanase for the Green Synthesis of Gold Nanoparticles by Streptomyces sp. and Its Cytotoxic Effect on HeLa Cells.
abstract: Marine actinobacteria-produced fucoidanases have received considerable attention as one of the major research topics in recent years, particularly for the medical exploitation of fucoidans and their degradation products. The present study describes the optimization and production of a novel fucoidanase for the green synthesis of gold nanoparticles and its biological applications. The production of fucoidanase was optimized using Streptomyces sp. The medium components were selected in accordance with the Plackett-Burman design and were further optimized via response surface methodology. The fucoidanase was statistically optimized with the most significant factors, namely wheat bran 3.3441 g/L, kelp powder 0.7041 g/L, and NaCl 0.8807 g/L, respectively. The biosynthesized gold nanoparticles were determined by UV-vis spectroscopy and were further characterized by X-ray diffraction analysis, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, energy dispersive X-ray analysis, and high-resolution transmission electron microscopy. Furthermore, the biosynthesized gold nanoparticles exhibited a dose-dependent cytotoxicity against HeLa cells and the inhibitory concentration (IC50) was found to be 350 µg/mL at 24 h and 250 µg/mL at 48 h. Therefore, the production of novel fucoidanase for the green synthesis of gold nanoparticles has comparatively rapid, less expensive and wide application to anticancer therapy in modern medicine.
authors.affiliation: Marine-Integrated Bionics Research Center, Pukyong National University, Busan 608-737, Korea. manimaribtech@gmail.com.
authors.forename: Panchanathan
authors.initials: P
authors.lastname: Manivasagan
authors.affiliation: Marine-Integrated Bionics Research Center, Pukyong National University, Busan 608-737, Korea. jungoh@pknu.ac.kr.|Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus), Pukyong National University, Busan 608-737, Korea. jungoh@pknu.ac.kr.
authors.forename: Junghwan
authors.initials: J
authors.lastname: Oh
mesh_terms: D000970:Antineoplastic Agents / Q000008:administration & dosage / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D005260:Female; D006026:Glycoside Hydrolases / Q000378:metabolism*; D006046:Gold / Q000737:chemistry*; D006367:HeLa Cells; D006801:Humans; D020128:Inhibitory Concentration 50; D053768:Metal Nanoparticles / Q000008:administration & dosage / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D017550:Spectroscopy, Fourier Transform Infrared; D013302:Streptomyces / Q000201:enzymology*; D002583:Uterine Cervical Neoplasms / Q000188:drug therapy; D014961:X-Ray Diffraction
chemical_list: D000970:Antineoplastic Agents; D006046:Gold; D006026:Glycoside Hydrolases
keywords: HeLa cells; Streptomyces; fucoidan; fucoidanase; gold nanoparticles