A Nanocoating Co‐Localizing Nitric Oxide and Growth Factor onto Individual Endothelial Cells Reveals Synergistic Effects on Angiogenesis. Issue 6 (7th December 2021)

• Record Type: Journal Article
• Authors: Jeong, Hyejoong; Choi, Daheui; Oh, Yoogyeong; Heo, Jiwoong; Hong, Jinkee
• Is Part Of: Advanced healthcare materials. Volume 11:Issue 6(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-12-07
• Subjects: angiogenesis -- cell coating -- human vein endothelial cells -- layer‐by‐layer assembly -- nitric oxide delivery -- vascular endothelial growth factors; Biomedical materials -- Periodicals; 610.28
• DOI: 10.1002/adhm.202102095
• Languages: English
• ISSNs: 2192-2640

Abstract

Abstract: The delivery of nitric oxide (NO)—an intrinsic cellular signaling molecule—is promising for disease treatment, in particular to vascular diseases, due to its endothelial‐derived inherent nature. The limited diffusion distance of labile NO prompts researchers to develop various carriers and targeting methods for specific sites. In contrast to the apoptotic effect of NO, such as anticancer, delivering low NO concentration at the desired targeting area is still intricate in a physiological environment. In this study, the layer‐by‐layer assembled nanocoating is leveraged to develop a direct NO delivery platform to individual endothelial cells (ECs). NO can be localized to individual ECs via S ‐nitrosothiol‐bound polyacrylic acid which is a polymer directly providing an endothelial‐like constant level of NO. To increase angiogenic activation along with NO, VEGF is additionally applied to specific receptors on the cell surface. Notably, the survival and proliferation of ECs are significantly increased by a synergistic effect of NO and VEGF co‐localized via nanocoating. Furthermore, the nanocoating remarkably promoted cell migration and tubule formation—prerequisites of angiogenesis. The proposed unique technology based on nanocoating demonstrates great potential for conferring desired angiogenic functions to individual ECs through efficient NO delivery. Abstract : To utilize the therapeutic effects, delivery of NO with a cytoprotective range to target cells is essential. Here, a layer‐by‐layer assembly technology‐based nanocoating is developed to co‐localize NO and vascular endothelial growth factor to individual cells. Nanocoating addresses NO targeting and enhances the angiogenic activity of cells based on the synergistic effect of NO and VEGF.