Ultrasound-guided Induced Pluripotent Stem Cell-derived Cardiomyocyte Implantation in Myocardial Infarcted Mice

J Vis Exp. 2022 Mar 30:(181). doi: 10.3791/63647.

Abstract

The key objective of cell therapy after myocardial infarction (MI) is to effectively enhance the cell grafted rate, and human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are a promising cell source for cardiac repair after ischemic damage. However, a low grafted rate is a significant obstacle for effective cardiac tissue regeneration after transplantation. This protocol shows that multiple hiPSC-CM ultrasound-guided percutaneous injections into an MI area effectively increase cell transplantation rates. The study also describes the entire hiPSC-CM culture process, pretreatment, and ultrasound-guided percutaneous delivery methods. In addition, the use of human mitochondrial DNA help detect the absence of hiPSC-CMs in other mouse organs. Lastly, this paper describes the changes in cardiac function, angiogenesis, cell size, and apoptosis at the infarcted border zone in mice 4 weeks after cell delivery. It can be concluded that echocardiography-guided percutaneous injection of the left ventricular myocardium is a feasible, relatively invasive, satisfactory, repeatable, and effective cellular therapy.

Publication types

  • Video-Audio Media
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Differentiation
  • Cells, Cultured
  • Disease Models, Animal
  • Humans
  • Induced Pluripotent Stem Cells*
  • Mice
  • Myocardial Infarction* / diagnostic imaging
  • Myocardial Infarction* / therapy
  • Myocytes, Cardiac / physiology
  • Ultrasonography, Interventional