J. Mater. Sci. Technol. ›› 2023, Vol. 143: 198-206.DOI: 10.1016/j.jmst.2022.11.002

• Research Article • Previous Articles     Next Articles

An injectable alginate/fibrin hydrogel encapsulated with cardiomyocytes and VEGF for myocardial infarction treatment

Chunxia Liua,1, Yong Wua,1, Hong Yanga, Kunyan Lub, Haixin Zhangb, Yuanyuan Wanga, Jingjing Wanga, Linan Ruana, Zhenya Shena,*, Qian Yub,c,*, Yanxia Zhanga,c,*   

  1. aInstitute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Suzhou Medical College of Soochow University, Soochow University, Suzhou 215000, China
    bState and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
    cKey Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, Soochow University, Suzhou 215123, China
  • Received:2022-10-20 Revised:2022-10-20 Accepted:2022-10-20 Online:2023-04-14
  • Contact: *E-mail addresses: uuzyshen@aliyun.com (Z. Shen), yuqian@suda.edu.cn (Q. Yu), zhangyanxia@suda.edu.cn (Y. Zhang).
  • About author:1These authors contributed equally to this work.

Abstract: Myocardial infarction (MI) is one of the typical cardiovascular diseases, which persist as the leading cause of death globally. Due to the poor regenerative capability of endogenous cardiomyocytes (CMs), the transplantation of exogenous CMs becomes a promising option for MI treatment. However, the low retention and survival of transplanted cells still limit the clinical translation of cell therapy. Herein, an alginate/fibrin-based injectable hydrogel was prepared for the delivery of neonatal CMs and an angiogenesis agent vascular endothelial growth factor (VEGF) locally to the infarcted area of the heart. This hydrogel combined the specific advantages of alginate and fibrin with proper mechanical properties and cell affinity, showing good biocompatibility to support the retention and integration of the transplanted CMs to the host myocardium. Moreover, the delivered VEGF was favorable for the blood recovery to mitigate the ischemic microenvironment of the infarcted area and thus improved the survival of the transplanted CMs. Intramyocardial injection of this hydrogel to the infarcted area of the heart promoted angiogenesis, inhibited fibrosis, and improved cardiac function, exhibiting great potential for MI treatment.

Key words: Injectable hydrogel, Alginate, Fibrin, Cardiomyocytes, VEGF, Myocardial infarction