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Open AccessArticle

Fucoidan Stimulates Monocyte Migration via ERK/p38 Signaling Pathways and MMP9 Secretion

Inserm UMR_S 1140, Faculté de Pharmacie, Université Paris Descartes, Sorbonne Paris Cité, 4 Avenue de l'observatoire Paris 75006, France
Inserm UMR-S 970, AP-HP, Hôpital Européen Georges Pompidou, 20 rue Leblanc Paris 75015, France
Author to whom correspondence should be addressed.
Academic Editor: Paola Laurienzo
Mar. Drugs 2015, 13(7), 4156-4170;
Received: 26 May 2015 / Revised: 17 June 2015 / Accepted: 23 June 2015 / Published: 30 June 2015
(This article belongs to the Collection Marine Polysaccharides)
Critical limb ischemia (CLI) induces the secretion of paracrine signals, leading to monocyte recruitment and thereby contributing to the initiation of angiogenesis and tissue healing. We have previously demonstrated that fucoidan, an antithrombotic polysaccharide, promotes the formation of new blood vessels in a mouse model of hindlimb ischemia. We examined the effect of fucoidan on the capacity of peripheral blood monocytes to adhere and migrate. Monocytes negatively isolated with magnetic beads from peripheral blood of healthy donors were treated with fucoidan. Fucoidan induced a 1.5-fold increase in monocyte adhesion to gelatin (p < 0.05) and a five-fold increase in chemotaxis in Boyden chambers (p < 0.05). Fucoidan also enhanced migration 2.5-fold in a transmigration assay (p < 0.05). MMP9 activity in monocyte supernatants was significantly enhanced by fucoidan (p < 0.05). Finally, Western blot analysis of fucoidan-treated monocytes showed upregulation of ERK/p38 phosphorylation. Inhibition of ERK/p38 phosphorylation abrogated fucoidan enhancement of migration (p < 0.01). Fucoidan displays striking biological effects, notably promoting monocyte adhesion and migration. These effects involve the ERK and p38 pathways, and increased MMP9 activity. Fucoidan could improve critical limb ischemia by promoting monocyte recruitment. View Full-Text
Keywords: fucoidan; monocytes; critical limb ischemia; migration fucoidan; monocytes; critical limb ischemia; migration
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Sapharikas, E.; Lokajczyk, A.; Fischer, A.-M.; Boisson-Vidal, C. Fucoidan Stimulates Monocyte Migration via ERK/p38 Signaling Pathways and MMP9 Secretion. Mar. Drugs 2015, 13, 4156-4170.

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