2007年7月
Early gene expression analyzed by cDNA microarray and real-time PCR in osteoblasts cultured with chitosan monomer
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
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- 巻
- 82A
- 号
- 1
- 開始ページ
- 188
- 終了ページ
- 194
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/jbm.a.31130
- 出版者・発行元
- WILEY-LISS
Chitosan has a variety of biological activities. Although it has been reported that chitosan promotes osteogenesis in bone lesions, little is known about how it modulates the hard tissue forming cells at the gene level. This study focused on gene expressions in osteoblasts cultured with a super-low concentration of chitosan monomer. cDNA probes were synthesized from isolated RNA and labeled with fluorescent dye. They were hybridized with Human 3.8 II cDNA microarray, and the fluorescent signal was analyzed. cDNA microarray analysis revealed that 10 genes concerning to various signaling-related molecules were expressed at >= 2.0-fold higher signal ratio levels in the experimental group when compared with the control group after 3 days. Real-time PCR analysis showed that chitosan monomer induced an increase in the expression of four signal transduction genes, mitogen-activated protein kinase (MAPK)K3, MAPKKK11, Rac1 and Shc1, together with the alkaline phosphatase gene. These results suggest that a super-low concentration of chitosan monomer could modulate the activity of osteoblastic cells through mRNA levels and that chitosan monomer directly affects signal transduction inside cells. (c) 2007 Wiley Periodicals, Inc.
- リンク情報
- ID情報
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- DOI : 10.1002/jbm.a.31130
- ISSN : 1549-3296
- Web of Science ID : WOS:000247089500021