PMID- 12970235 OWN - NLM STAT- MEDLINE DCOM- 20030930 LR - 20081121 IS - 1524-4539 (Electronic) IS - 0009-7322 (Linking) VI - 108 Suppl 1 DP - 2003 Sep 9 TI - Transfection with a dominant-negative inhibitor of monocyte chemoattractant protein-1 gene improves cardiac function after 6 hours of cold preservation. PG - II213-8 AB - BACKGROUND: Monocyte chemoattractant protein-1 (MCP-1), a potent chemotactic factor for monocytes, is induced during ischemia-reperfusion. As monocytes might play an important causative role in reperfusion injury, we investigated if inhibition of monocyte activation could attenuate ischemia-reperfusion injury and thereby improve cardiac preservation. To inhibit monocyte activation, we transfected a dominant-negative inhibitor of MCP-1 (7ND) gene in an animal model. METHODS AND RESULTS: We used an isolated rabbit heart preparation perfused with support-rabbit blood and transfected 7ND genes to skeletal muscle of the support rabbits (n=7) using electroporation technique; causing an elevation of serum 7ND level to 20+/-7 pg/mL at 5 days after transfection. Animals receiving empty plasmid served as controls (n=7). Five days after transfection, hearts from other rabbits were excised, stored in UW solution for 6hours, and perfused with blood from transfected support rabbits. The 7ND group showed better cardiac output (128.7+/-17.9 versus 81.6+/-19.8 mL/min; P<0.01), lower serum CK-MB levels (5.0+/-1.8 versus 11.1+/-2.9 ng/mL; P<0.01), lower serum IL-1beta levels (257.2+/-23.2 versus 311.2+/-37.4pg/mL; P<0.05), and lower serum TNF-alpha levels (19.0+/-8.4 versus 35.1+/-13.0pg/mL; P<0.05). The numbers of infiltrating cells in myocardium were significantly reduced in the 7ND group. CONCLUSIONS: Inhibition of MCP-1 with 7ND gene transfection reduced cytokine activation, attenuated myocardial damage, and improved cardiac function after 6 hours of preservation. These results show that MCP-1 plays an important role in ischemia-reperfusion injury. FAU - Kajihara, Noriyoshi AU - Kajihara N AD - Department of Cardiovascular Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. FAU - Morita, Shigeki AU - Morita S FAU - Nishida, Takahiro AU - Nishida T FAU - Tatewaki, Hideki AU - Tatewaki H FAU - Eto, Masataka AU - Eto M FAU - Egashira, Kensuke AU - Egashira K FAU - Yasui, Hisataka AU - Yasui H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Circulation JT - Circulation JID - 0147763 RN - 0 (Chemokine CCL2) RN - 0 (Interleukin-1) RN - 0 (Isoenzymes) RN - 0 (Tumor Necrosis Factor-alpha) RN - EC 2.7.3.2 (Creatine Kinase) RN - EC 2.7.3.2 (Creatine Kinase, MB Form) SB - IM MH - Animals MH - Cell Movement MH - Chemokine CCL2/blood/*genetics MH - *Cold Temperature MH - Creatine Kinase/blood MH - Creatine Kinase, MB Form MH - Heart/*physiology MH - Interleukin-1/blood MH - Isoenzymes/blood MH - Monocytes/physiology MH - Mutation MH - Myocardial Reperfusion Injury/pathology/therapy MH - Myocardium/pathology MH - *Organ Preservation MH - Rabbits MH - Time Factors MH - Transfection MH - Tumor Necrosis Factor-alpha/analysis MH - Ventricular Function, Left EDAT- 2003/09/13 05:00 MHDA- 2003/10/01 05:00 CRDT- 2003/09/13 05:00 PHST- 2003/09/13 05:00 [pubmed] PHST- 2003/10/01 05:00 [medline] PHST- 2003/09/13 05:00 [entrez] AID - 108/10_suppl_1/II-213 [pii] AID - 10.1161/01.cir.0000087426.18858.3a [doi] PST - ppublish SO - Circulation. 2003 Sep 9;108 Suppl 1:II213-8. doi: 10.1161/01.cir.0000087426.18858.3a.