Abstract
Green tea polyphenol (GTP) together with dimethylsulphoxide (DMSO) were added to a freezing solution of osteoblastic cells (rat calvarial osteoblasts and human osteosarcoma cells) exposed to repeated freeze/thaw cycles (FTC) to induce oxidative stress. When cells were subjected to 3 FTCs, freezing medium containing 10% (v/v) DMSO and 500 μg GTP ml-1 significantly (p < 0.05) suppressed cell detachment and growth inhibition by over 63% and protected cell morphology. Furthermore, the alkaline phosphatase activity of osteoblastic cells was appreciably maintained after 2 and 3 FTCs in this mixture. Polyphenols may thus be of use as a cell cryopreservant and be advantageous in such fields as cell transplantation and tissue engineering.
Original language | English |
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Pages (from-to) | 655-660 |
Number of pages | 6 |
Journal | Biotechnology Letters |
Volume | 27 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2005 May |
Bibliographical note
Funding Information:This work was supported by the Korean Ministry of Health and Welfare (Grant No. 02-PJ3-PG3-31402-0018).
All Science Journal Classification (ASJC) codes
- Biotechnology
- Bioengineering
- Applied Microbiology and Biotechnology