Antifibrotic effect of the herbal medicine Saiko-keishi-to (TJ-10) on chronic pancreatitis in the WBN/Kob rat.
Chronic pancreatitis is characterized by fibrosis. We reported an anti-inflammatory effect of the herbal medicine Saiko-keishi-to (TJ-10) on chronic pancreatitis. This study aimed to elucidate the antifibrotic effect of TJ-10. Four-week-old male WBN/Kob rats were fed a special pellet diet (MB-3) with or without TJ-10 (80 mg/100 g body weight) for 20 weeks. Pancreata were histopathologically examined at every 4 weeks, and the expression of fibrosis-related factors such as transforming growth factor beta1 (TGF-beta1), fibronectin (FN), alpha-smooth muscle actin (alpha-SMA), and type III collagen was analyzed. In untreated WBN/Kob rats, chronic pancreatitis developed at 12 weeks and progressed with marked fibrosis at 16 weeks, and the expression of TGF-beta1 and FN peaked at 12 weeks. However, in the TJ-10-treated rats, the rate of pancreatic fibrosis and the expression of TGF-beta1, FN, alpha-SMA, and type III collagen at 12 and 16 weeks decreased significantly compared to those in the untreated rats. These results suggest that TJ-10 inhibits the pancreatic fibrosis by the suppression of TGF-beta1 expression.
Su
S B
SB
Department of Internal Medicine and Medical Oncology, Cancer Research Institute, Kanazawa University, Japan.
Motoo
Y
Y
Xie
M J
MJ
Taga
H
H
Sawabu
N
N
D000199:Actins / Q000378:metabolism; D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use*; D001835:Body Weight; D002908:Chronic Disease; D003094:Collagen / Q000378:metabolism; D004032:Diet; D004365:Drugs, Chinese Herbal / Q000627:therapeutic use*; D005353:Fibronectins / Q000096:biosynthesis / Q000235:genetics; D005355:Fibrosis / Q000517:prevention & control; D015870:Gene Expression / Q000187:drug effects; D008297:Male; D009929:Organ Size; D010179:Pancreas / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D010195:Pancreatitis / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D012333:RNA, Messenger / Q000096:biosynthesis; D051381:Rats; D020133:Reverse Transcriptase Polymerase Chain Reaction; D016212:Transforming Growth Factor beta / Q000096:biosynthesis / Q000235:genetics; D053773:Transforming Growth Factor beta1
D000199:Actins; D000894:Anti-Inflammatory Agents, Non-Steroidal; D004365:Drugs, Chinese Herbal; D005353:Fibronectins; D012333:RNA, Messenger; C508962:Tgfb1 protein, rat; D016212:Transforming Growth Factor beta; D053773:Transforming Growth Factor beta1; C018142:saiko-keishi-to; D003094:Collagen