PMID- 11593531 OWN - NLM STAT- MEDLINE DCOM- 20011207 LR - 20061115 IS - 0366-6999 (Print) IS - 0366-6999 (Linking) VI - 112 IP - 4 DP - 1999 Apr TI - Effects of Kupffer cells stimulated by triglyceride and very low-density lipoprotein on proliferation of rat hepatic stellate cells. PG - 325-9 AB - OBJECTIVE: To study the effects of triglyceride, very low-density lipoprotein (VLDL), and Kupffer cell-conditioned medium (KCCM) derived from triglyceride and VLDL treatment on proliferation of rat hepatic stellate cells (HSC). METHODS: HSC and Kupffer cells were isolated and cultured from liver of Wistar rats by in situ perfusion with proteinase and collagenase, and density gradient centrifugation with Nycodenz; HSC and Kupffer cells were identified by immunohistochemistry, endocytosis, and ultrastructure, etc. Kupffer cells were incubated with triglyceride (25 micrograms/ml) and VLDL (25 micrograms/ml) for 24 hours, KCCM were prepared, and MTT colorimetric assay was detected for HSC proliferation. RESULTS: HSC proliferation was 0.1894 +/- 0.0316 (12.5 micrograms/ml), 0.1637 +/- 0.0243 (25 micrograms/ml), 0.1450 +/- 0.0264 (50 micrograms/ml), 0.1212 +/- 0.0275 (100 micrograms/ml), 0.1226 +/- 0.0138 (200 micrograms/ml) and 0.0990 +/- 0.0163 (400 micrograms/ml) in the presence of triglyceride and was 0.1583 +/- 0.0314 (6.25 micrograms/ml), 0.1642 +/- 0.0269 (12.5 micrograms/ml), 0.1834 +/- 0.0498 (25 micrograms/ml), 0.1964 +/- 0.0287 (50 micrograms/ml) and 0.2202 +/- 0.0284 (100 micrograms/ml) in presence of VLDL, respectively. Compared with the control, HSC proliferation at 400 micrograms/ml of triglyceride was lower (P < 0.01), but at 12.5 micrograms/ml of triglyceride and 25, 50, 100 micrograms/ml of VLDL higher (P < 0.05 or 0.01); HSC proliferation was 0.1569 +/- 0.0144, 0.1924 +/- 0.0113 and 0.1871 +/- 0.0116 in the presence of KCCM, KCCM + triglyceride and KCCM + VLDL, respectively. Compared with the control and KCCM, KCCM + triglyceride and KCCM + VLDL might promote HSC proliferation (P < 0.01); there was no statistical significance between KCCM + triglyceride and KCCM + VLDL (P > 0.05); KCCM was greater in HSC proliferation than the control, but there was no significant change (P > 0.05). CONCLUSIONS: Triglyceride, VLDL, and KCCM stimulated by triglyceride and VLDL might promote HSC proliferation and be associated with fatty liver and hepatic fibrogenesis. FAU - Lu, L AU - Lu L AD - Shanghai Institute of Digestive Disease, Renji Hospital, Shanghai Second Medical University, Shanghai 200001, China. FAU - Zeng, M AU - Zeng M FAU - Li, J AU - Li J FAU - Hua, J AU - Hua J FAU - Fan, J AU - Fan J FAU - Fan, Z AU - Fan Z FAU - Qiu, D AU - Qiu D FAU - Xiao, S AU - Xiao S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Chin Med J (Engl) JT - Chinese medical journal JID - 7513795 RN - 0 (Culture Media, Conditioned) RN - 0 (Lipoproteins, VLDL) RN - 0 (Triglycerides) SB - IM MH - Animals MH - Cell Division/drug effects MH - Culture Media, Conditioned MH - Hepatocytes/*cytology MH - Kupffer Cells/*cytology MH - Lipid Peroxidation MH - Lipoproteins, VLDL/*pharmacology MH - Male MH - Rats MH - Rats, Wistar MH - Triglycerides/*pharmacology EDAT- 2001/10/12 10:00 MHDA- 2002/01/05 10:01 CRDT- 2001/10/12 10:00 PHST- 2001/10/12 10:00 [pubmed] PHST- 2002/01/05 10:01 [medline] PHST- 2001/10/12 10:00 [entrez] PST - ppublish SO - Chin Med J (Engl). 1999 Apr;112(4):325-9.