Human dental pulp-derived stem cells (hDPSCs) have been considered alternative sources of adult stem cells because of their potential to differentiate into osteoblasts, chondroblasts and adipocytes. The osteoblast is a mononucleate cell that is responsible for bone formation. Gangliosides are key lipid molecules that are required for the regulation of cellular processes such as proliferation and differentiation. The role of gangliosides that play in osteoblastogenesis is not yet clearly understood. Therefore, in this study, we demonstrated the clearly role of gangliosides in the osteoblast differentiation of hDPSCs by shRNA. The results of high-performance thin-layer chromatography (HP-TLC) showed that ganglioside GD1a expression was increased during the differentiation of hMSCs into osteoblasts. We showed a localization of ganglioside GD1a with ALP by immunofluorescence staining. Biosynthesis of ganglioside GD1a synthesize with the formation of sialic acid from GM1a by ST2 beta-galactoside alpha-2,3-sialyltransferase 2 (ST3Gal2). We used lentivirus-mediated shRNA expression for knockdown of ST3Gal2 gene expression. Down-regulation of ganglioside GD1a was decreased GD1a expression and ALP activity. Furthermore, these data indicate that the knockdown of ST3Gal2 by shRNA is inhibition of ERK1/2-phosphorylation. Taken together, these results suggest that ganglioside GD1a may play a role in the osteoblast differentiation process of hDPSCs.
저자
Hyo-Jung Yang [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Jung-Woo Jin [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
So-Hyun Lee [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Jae-Sung Ryu [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Jin-Hyoung Cho [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
So-Dam Lee [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Young-Kug Choo [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.
간행물
간행물명
한국당과학회 학술대회
간기
연간
수록기간
2006~2022
십진분류
KDC 517DDC 614
이 권호 내 다른 논문 / 한국당과학회 학술대회 4th 2009 Annual Meeting of Korean Society for Glycoscience in 2009