alexa Effect Of Silk-protein: Sericin On Neuroblastoma Differentiation | 12195
ISSN: 2155-952X

Journal of Biotechnology & Biomaterials
Open Access

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Effect of silk-protein: Sericin on neuroblastoma differentiation

4th World Congress on Biotechnology

Priti Tiwari and K. Y. Chen

Posters: J Biotechnol Biomater

DOI: 10.4172/2155-952X.S1.024

Abstract
Current study focused on utilizing sericin as a substrate to induce neuroblastoma differentiation. Silk protein was extracted from bombyx silk cocoon by degumming using sodium bicarbonate. The resulting silk fiber was dissolved in Lithium bromide solution (~10M) and excess lithium bromide was removed via dialysis. The solubilized silk protein was sterilized and used for coating petri dishes and utilized in cell culture. N2a cells were culture on substrates coated with sericin and evaluated for proliferation and differentiation abilities. Mouse N2a neuroblastoma cells were cultured in Dulbecco's medium containing 10% fetal bovine serum. For proliferation assay, Cell growth was measured by counting viable cells using the Trypan Blue dye exclusion. For differentiation induction assay, cells were monitored by morphological appearance of neurite outgrowth. It was determined that sericin improved cell adhesion and promoted growth inhibition of neuroblastoma cells. However the cells were growth inhibited and failed to proliferate beyond the seeding density. Cells failed to develop neurite outgrowth, implying sericin was not effective as a differentiation substrate. Adding small molecule inducers along with sericin coating induced differentiation comparable to differentiation achieved without sericin coating. This study implies that external substrate modification alone was ineffective in inducing differentiation and small molecule inducers are eminent for committing the cells to differentiation pathway.
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