PMID- 18219277 OWN - NLM STAT- MEDLINE DCOM- 20080624 LR - 20220408 IS - 1523-1747 (Electronic) IS - 0022-202X (Linking) VI - 128 IP - 7 DP - 2008 Jul TI - The loss of MCP-1 attenuates cutaneous ischemia-reperfusion injury in a mouse model of pressure ulcer. PG - 1838-51 LID - 10.1038/sj.jid.5701258 [doi] AB - The formation of pressure ulcers is dependent on multiple factors including ischemia-reperfusion (IR). This study assessed the mechanism of a previously reported murine model of cutaneous IR injury. Three cycles of IR (days 1-3) by external application of two magnetic plates were performed to induce pressure ulcer formation. Increased infiltration of neutrophils and macrophages, and augmented expression of proinflammatory cytokines and inducible nitric oxide synthase (iNOS), were observed during IR cycles. In this model, monocyte chemoattractant protein-1 (MCP-1) was remarkably increased at day 1 in the skin followed by inflammatory cell infiltration. Therefore, IR cycles were performed in MCP-1-deficient (MCP-1(-/-)) mice to evaluate the role of this chemokine in pressure ulcer development. MCP-1(-/-) mice showed reduced macrophage infiltration and expression of tumor-necrosis factor-alpha (TNF)-alpha and iNOS during IR cycles leading to attenuated apoptosis and skin injury. Importantly, MCP-1 played a role in apoptosis and injury via inducing iNOS during the reperfusion rather than the ischemic period. These findings indicate that MCP-1 may be a critical factor for macrophage recruitment and subsequent skin inflammation and injury during IR cycles. We propose that this is a useful model for investigating the mechanism of pressure ulcer formation using various transgenic mice. FAU - Saito, Yuki AU - Saito Y AD - Department of Dermatology, Kanazawa University Graduate School of Medical Science, Kanazawa, Ishikawa, Japan. FAU - Hasegawa, Minoru AU - Hasegawa M FAU - Fujimoto, Manabu AU - Fujimoto M FAU - Matsushita, Takashi AU - Matsushita T FAU - Horikawa, Mayuka AU - Horikawa M FAU - Takenaka, Motoi AU - Takenaka M FAU - Ogawa, Fumihide AU - Ogawa F FAU - Sugama, Junko AU - Sugama J FAU - Steeber, Douglas A AU - Steeber DA FAU - Sato, Shinichi AU - Sato S FAU - Takehara, Kazuhiko AU - Takehara K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080124 PL - United States TA - J Invest Dermatol JT - The Journal of investigative dermatology JID - 0426720 RN - 0 (Ccl2 protein, mouse) RN - 0 (Chemokine CCL2) RN - 0 (HSP90 Heat-Shock Proteins) RN - 0 (RNA, Messenger) RN - 0 (Tumor Necrosis Factor-alpha) RN - 31C4KY9ESH (Nitric Oxide) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) SB - IM MH - Animals MH - Apoptosis MH - Chemokine CCL2/blood/*physiology MH - Female MH - HSP90 Heat-Shock Proteins/genetics MH - Macrophages/physiology MH - Mice MH - Mice, Inbred C57BL MH - Neutrophil Infiltration MH - Nitric Oxide/biosynthesis MH - Nitric Oxide Synthase Type II/genetics MH - Pressure Ulcer/*etiology MH - RNA, Messenger/analysis MH - Reperfusion Injury/pathology/*prevention & control MH - Skin/*blood supply/pathology MH - Tumor Necrosis Factor-alpha/blood/genetics MH - Wound Healing EDAT- 2008/01/26 09:00 MHDA- 2008/06/25 09:00 CRDT- 2008/01/26 09:00 PHST- 2008/01/26 09:00 [pubmed] PHST- 2008/06/25 09:00 [medline] PHST- 2008/01/26 09:00 [entrez] AID - S0022-202X(15)33930-0 [pii] AID - 10.1038/sj.jid.5701258 [doi] PST - ppublish SO - J Invest Dermatol. 2008 Jul;128(7):1838-51. doi: 10.1038/sj.jid.5701258. Epub 2008 Jan 24.