| RRC ID |
1399
|
| 著者 |
Ohara N, Hayashi Y, Yamada S, Kim SK, Matsunaga T, Yanagiguchi K, Ikeda T.
|
| タイトル |
Early gene expression analyzed by cDNA microarray and RT-PCR in osteoblasts cultured with water-soluble and low molecular chitooligosaccharide.
|
| ジャーナル |
Biomaterials
|
| Abstract |
Chitosan has a variety of biological activities. However, little is known about how chitosan modulates the hard tissue forming cells. When we cultured an osteoblastic cell line in alpha-MEM supplemented with 10% FBS and 0.005% chitooligosaccharide for 3 days, alkaline phosphatase (ALP) activity was significantly high compared with the control culture group (p<0.05). This study was focused on gene expression in osteoblasts cultured with water-soluble chitooligosaccharide. cDNA probes were synthesized from isolated RNA and labeled with fluorescent dye. They were hybridized with Human 1.0((R)) cDNA microarray, and fluorescent signal was analyzed. cDNA microarray analysis revealed that 16 genes were expressed at >/=1.5-fold higher signal ratio levels in the experimental group compared with the control group after 3 days. RT-PCR analysis showed that chitosan oligomer induced an increase in the expression of two genes, CD56 antigen and tissue-type plasminogen activator. Furthermore, the expression of mRNAs for BMP-2 was almost identical in the experimental and control groups after 3 days of culture, but slightly increased after 7 days of culture with chitosan oligomer. These results suggest that a super-low concentration of chitooligosaccharide could modulate the activity of osteoblastic cells through mRNA levels and that the genes concerning cell proliferation and differentiation can be controlled by water-soluble chitosan.
|
| 巻・号 |
25(10)
|
| ページ |
1749-54
|
| 公開日 |
2004-5-1
|
| DOI |
10.1016/j.biomaterials.2003.08.022
|
| PII |
S0142961203006811
|
| PMID |
14738837
|
| MeSH |
Bone Morphogenetic Protein 2
Bone Morphogenetic Proteins / metabolism
CD56 Antigen / metabolism
Cell Culture Techniques / methods*
Cell Differentiation / drug effects
Cell Division / drug effects
Cell Line, Tumor
Chitin / analogs & derivatives*
Chitin / chemistry
Chitin / pharmacology*
Chitosan
Dose-Response Relationship, Drug
Gene Expression Regulation / drug effects
Humans
Molecular Weight
Oligonucleotide Array Sequence Analysis / methods
Osteoblasts / drug effects
Osteoblasts / metabolism*
Osteoblasts / pathology*
Osteogenesis / drug effects
Osteosarcoma / metabolism*
Osteosarcoma / pathology*
Reverse Transcriptase Polymerase Chain Reaction
Solubility
Tissue Plasminogen Activator / metabolism
Transforming Growth Factor beta*
Water / chemistry*
|
| IF |
10.317
|
| 引用数 |
55
|
|
WOS 分野
|
ENGINEERING, BIOMEDICAL
MATERIALS SCIENCE, BIOMATERIALS
|
| リソース情報 |
| ヒト・動物細胞 |
NOS-1(RCB1032) |
