PMID- 12027198 OWN - NLM STAT- MEDLINE DCOM- 20021118 LR - 20190922 IS - 0941-1291 (Print) IS - 0941-1291 (Linking) VI - 32 IP - 4 DP - 2002 TI - Monocyte chemoattractant protein-1 expression in intimal hyperplasia of vein grafts in a rat model. PG - 329-34 AB - PURPOSE: Most cardiovascular surgeons prefer artery grafts to vein grafts. Monocyte chemoattractant protein-1 (MCP-1) is the most potent chemoattractant factor for monocytes/macrophages (Mo/Mphi). We conducted experiments based on our hypothesis that intimal hyperplasia (IH) is more severe in vein grafts than in situ artery grafts, due to differences in Mo/Mphi infiltration, and that the expression of MCP-1 is different in vein grafts compared with in situ artery grafts. METHODS: Lewis rats were subjected to either epigastric vein to common femoral artery interposition grafts (VG: n = 34) or common femoral artery reanastomoses (FA: n = 34). IH was defined as the intimal area/total area (intimal ratio, Ri). Immunohistochemistry was also performed, using a monoclonal antibody (ED-1), specific for rat Mo/Mphi. MCP-1 mRNA expression was examined by a reverse transcription-polymerase chain reaction, and compared with S-26 mRNA expression. RESULTS: After 2 weeks, the Ri of the VGs became significantly larger than the Ri of the FA anastomoses (P < 0.01). ED-1+ cell numbers were significantly elevated in the VG compared with the FA anastomoses, after 1 day, 2 weeks (P < 0.05), and 4 weeks (P < 0.01). MCP-1 mRNA expression was significantly increased in the VGs by 1 day (P < 0.05). CONCLUSION: These results show that there could be a direct correlation between the significant increases in MCP-1 mRNA expression, Mo/Mphi infiltration, and the development of IH in vein grafts, not seen in FA anastomoses. FAU - Mitsuhiro, Yamamura AU - Mitsuhiro Y AD - Department of Cardiovascular Surgery, Hyogo College of Medicine, Japan. FAU - Miyamoto, Takashi AU - Miyamoto T FAU - Hoch, John R AU - Hoch JR LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Japan TA - Surg Today JT - Surgery today JID - 9204360 RN - 0 (Chemokine CCL2) RN - 0 (RNA, Messenger) SB - IM MH - Anastomosis, Surgical MH - Animals MH - Chemokine CCL2/*analysis/genetics MH - Femoral Artery/surgery MH - Hyperplasia MH - Immunohistochemistry MH - Male MH - RNA, Messenger/analysis MH - Rats MH - Rats, Inbred Lew MH - Tunica Intima/*metabolism/pathology MH - Vascular Patency MH - Veins/metabolism/*transplantation EDAT- 2002/05/25 10:00 MHDA- 2002/11/26 04:00 CRDT- 2002/05/25 10:00 PHST- 2002/05/25 10:00 [pubmed] PHST- 2002/11/26 04:00 [medline] PHST- 2002/05/25 10:00 [entrez] AID - 10.1007/s005950200047 [doi] PST - ppublish SO - Surg Today. 2002;32(4):329-34. doi: 10.1007/s005950200047.