PMID- 22890671 OWN - NLM STAT- MEDLINE DCOM- 20121218 LR - 20151119 IS - 0065-1419 (Print) IS - 0065-1419 (Linking) VI - 115 DP - 2013 TI - Matricellular protein: a new player in cerebral vasospasm following subarachnoid hemorrhage. PG - 213-8 LID - 10.1007/978-3-7091-1192-5_39 [doi] AB - INTRODUCTION: Matricellular protein (MCP) is a class of nonstructural and secreted extracellular matrix proteins that exert diverse functions, but its role in vascular smooth muscle contraction has not been investigated. MATERIAL AND METHODS: First, rat subarachnoid hemorrhage (SAH) models were produced by endovascular perforation and examined for tenascin-C (TNC) and osteopontin (OPN) induction (representatives of MCPs) in vasospastic cerebral arteries using immunostaining. Second, recombinant TNC (r-TNC), recombinant OPN (r-OPN), or both were injected into a cisterna magna in healthy rats, and the effects on the diameter of basilar arteries were determined using India ink angiography. RESULTS: In SAH rats, TNC immunoreactivity was markedly induced in the smooth muscle cell layers of spastic cerebral arteries on day 1 but not in control animals. The TNC immunoreactivity decreased on day 3 as vasospasm improved: OPN immunoreactivity, on the other hand, was more induced in the arterial wall on day 3. r-TNC injections caused prolonged contractions of rat basilar arteries, which were reversed by r-OPN, although r-OPN itself had no effect on the vessel diameter. CONCLUSIONS: MCPs, including TNC and OPN, may contribute to the pathophysiology of cerebral vasospasm and provide a novel therapeutic approach against it. FAU - Suzuki, Hidenori AU - Suzuki H AD - Department of Neurosurgery, Mie University Graduate School of Medicine, Mie, Japan. suzuki02@clin.medic.mie-u.ac.jp FAU - Shiba, Masato AU - Shiba M FAU - Fujimoto, Masashi AU - Fujimoto M FAU - Kawamura, Kengo AU - Kawamura K FAU - Nanpei, Mai AU - Nanpei M FAU - Tekeuchi, Eriko AU - Tekeuchi E FAU - Matsushima, Satoshi AU - Matsushima S FAU - Kanamaru, Kenji AU - Kanamaru K FAU - Imanaka-Yoshida, Kyoko AU - Imanaka-Yoshida K FAU - Yoshida, Toshimichi AU - Yoshida T FAU - Taki, Waro AU - Taki W LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Austria TA - Acta Neurochir Suppl JT - Acta neurochirurgica. Supplement JID - 100962752 RN - 0 (Tenascin) RN - 0 (chinese ink) RN - 106441-73-0 (Osteopontin) RN - 7440-44-0 (Carbon) SB - IM MH - Animals MH - Basilar Artery/drug effects/metabolism/pathology MH - Carbon MH - Cerebral Angiography MH - Cisterna Magna/drug effects/physiopathology MH - Disease Models, Animal MH - Dose-Response Relationship, Drug MH - Gene Expression Regulation/drug effects MH - Male MH - Neurologic Examination MH - Osteopontin/*metabolism/pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Statistics, Nonparametric MH - Subarachnoid Hemorrhage/*complications/etiology MH - Tenascin/*metabolism/pharmacology MH - Time Factors MH - Vasoconstriction/drug effects MH - Vasospasm, Intracranial/*etiology/pathology EDAT- 2012/08/15 06:00 MHDA- 2012/12/19 06:00 CRDT- 2012/08/15 06:00 PHST- 2012/08/15 06:00 [entrez] PHST- 2012/08/15 06:00 [pubmed] PHST- 2012/12/19 06:00 [medline] AID - 10.1007/978-3-7091-1192-5_39 [doi] PST - ppublish SO - Acta Neurochir Suppl. 2013;115:213-8. doi: 10.1007/978-3-7091-1192-5_39.