期刊
ANNALS OF BIOMEDICAL ENGINEERING
卷 49, 期 9, 页码 1992-2005出版社
SPRINGER
DOI: 10.1007/s10439-021-02832-w
关键词
Vascularization; Macrophages polarization; Biomaterials; Tissue-engineering constructs
资金
- National Natural Science Foundation of China [32071359, 31771058, 11421202, 11827803, 61227902, 11120101001]
- National Key Technology RD Program [2016YFC1100704, 2016YFC1101101]
- International Joint Research Center of Aerospace Biotechnology and Medical Engineering from the Ministry of Science and Technology of China
- 111 Project [B13003]
- Research Fund for the Doctoral Program of Higher Education of China [20131102130004]
- Fundamental Research Funds for the Central Universities
Vascularization of tissue engineering constructs requires immune responses, and immunomodulatory biomaterials can utilize immune cells to promote tissue remodeling. Macrophages play a vital role in guiding vascular formation and tissue remodeling, and their polarization can be influenced by biomaterial properties. This review focuses on macrophage responses to biomaterials and current strategies to promote vascularization of tissue engineering constructs.
Vascularization of tissue engineering constructs is an urgent need for delivering oxygen and nutrients and promoting tissue remodeling. As we all know, almost all implanted biomaterials elicit immune responses. Interestingly, the immunomodulatory biomaterials can utilize the inherent regenerative capability of endogenous cells and stem cells recruited by the activated immune cells to facilitate anagenesis and tissue remodeling. Macrophages, as almost ones of the first responses upon the implantation of biomaterials, play a vital role in guiding vascular formation and tissue remodeling. The polarization of macrophages can be influenced by the physical and chemical properties of biomaterials and thus they display diverse function states. Here, this review focus on the macrophage polarization in response to biomaterials and the interactions between them. It also summarizes the current strategies to promote vascularization of tissue engineering constructs through macrophage responses.
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