ArticleCirculation research2009
L-type calcium channel blockers exert an antiinflammatory effect by suppressing expression of plasminogen receptors on macrophages.
Article in Circulation research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
44 citing papers in PubMed, 71 citations in OpenAlex.
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Funding
Abstract
L-type Ca(2+) channel (LTCC) blockers, represented by amlodipine and verapamil, are widely used antihypertensive drugs that also have antiinflammatory activities. Plasminogen (Plg) is an important mediator of macrophage recruitment, and this role depends on its interaction with Plg receptors (Plg-Rs). Plg-Rs include histone 2B, alpha-enolase, annexin 2, and p11, all proteins which lack signal sequences for cell surface export. When human or murine monocytoid cells were induced to differentiate into macrophages, their Plg binding and Plg-R expression increased by 4-fold. These changes were suppressed by pretreatment with verapamil and amlodipine. Expression of the Ca(v)1.2 LTCC pore subunit was induced in differentiated macrophages, and siRNA against this subunit suppressed the upregulation of Plg binding and Plg-Rs. In vivo, amlodipine and verapamil suppressed peritoneal macrophage recruitment in response to thioglycollate by >60% at doses that did not affect blood pressure. In drug-treated animals, macrophages migrated into but not through the peritoneal membrane tissue and showed reduced surface expression of Plg-Rs. These findings demonstrate that Plg-R expression on macrophages is dependent on Ca(v)1.2 LTCC subunit expression. Suppression of Plg-Rs may contribute to the antiinflammatory effects of the widely used LTCC blockers.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.