[Effects of tetrandrine on the synthesis of collagen and scar-derived fibroblast DNA].
OBJECTIVE
To investigate the effects of tetrandrine on the synthesis of collagen and scar derived fibroblast DNA.


METHODS
Scar-derived human fibroblasts were cultured in vitro. The changes in the levels of the synthesis of collagen and DNA of the fibroblasts were represented by the incorporation values of (3)H-TdR and (3)H-proline into the cells. Tetrandrine was added to the culture media of the cells, and its effects were studied.


RESULTS
When the concentration of added tetrandrine increased from 5 mg/L to 80 mg/L, The (3)H-TdR values in scar-derived fibroblasts were 1162 plus minus 226 and 412 plus minus 82, respectively while that in control group was 1740 plus minus 165, showing an inhibition rate of 76.32%, and the difference (P < 0.01). In addition, the (3)H-proline incorporation values in the cells were 535 plus minus 141 and 341 plus minus 89, respectively, while that in control group was 1126 plus minus 193, with the inhibition rate of 69.71%, showing significant difference (P < 0.01).


CONCLUSIONS
The synthesis of DNA and collagen in cultured scar-derived fibroblasts could be inhibited by tetrandrine in dose-dependent pattern. Tetrandrine might be a potential agent for the prevention and treatment of proliferative scars.
Liu
D
D
Department of Burns, The First Affiliated Hospital, Jiang Xi Medical College, Nanchang 330006, Jiang Xi Province, P. R. China.
Li
G
G
Liu
D
D
Cao
Y
Y
D000470:Alkaloids / Q000494:pharmacology*; D044182:Benzylisoquinolines; D002478:Cells, Cultured; D002921:Cicatrix / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology; D003094:Collagen / Q000096:biosynthesis / Q000187:drug effects*; D004247:DNA / Q000096:biosynthesis / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D004365:Drugs, Chinese Herbal / Q000494:pharmacology; D005347:Fibroblasts / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D006801:Humans
D000470:Alkaloids; D044182:Benzylisoquinolines; D004365:Drugs, Chinese Herbal; C009438:tetrandrine; D003094:Collagen; D004247:DNA