Angiogenic activity of human CC chemokine CCL15 in vitro and in vivo |
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Authors: | Hwang Jungsu Kim Chan Woo Son Kyung-No Han Kyu Yeon Lee Kyung Hee Kleinman Hynda K Ko Jesang Na Doe Sun Kwon Byoung S Gho Yong Song Kim Jiyoung |
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Affiliation: | Graduate School of Biotechnology and Institute of Life Sciences and Resources, Kyung Hee University, Yongin 449-701, South Korea. |
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Abstract: | CCL15 is a novel human CC chemokine and exerts its biological activities on immune cells through CCR1 and CCR3. Because a number of chemokines induce angiogenesis and endothelial cells express CCR1 and CCR3, we investigated the angiogenic activity of CCL15. Both CCL15(1-92) and N-terminal truncated CCL15(25-92) stimulate the chemotactic endothelial cell migration and differentiation, but CCL15(25-92) is at least 100-fold more potent than CCL15(1-92). Treatment with pertussis toxin (PTX), with anti-CCR1, or with anti-CCR3 antibody inhibits the CCL15(25-92)-induced endothelial cell migration. CCL15(25-92) also stimulates sprouting of vessels from aortic rings and mediates angiogenesis in the chick chorioallantoic membrane assay. Our findings demonstrate that CCL15(25-92) has in vitro and in vivo angiogenic activity, and suggest roles of the chemokine in angiogenesis. |
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Keywords: | Chemokine CCL15 Endothelial cells Angiogenesis CCR1 CCR3 |
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