NDLI: Dynamic three dimensional environment for efficient and large scale generation of smooth muscle cells from hiPSCs

Content Provider	Springer Nature : BioMed Central
Author	Green, Akazha Wei, Yuhua Warram, Jason M. Hartman, Yolanda E. Geng, Xiaoxiao Nguyen, Thanh Ye, Lei Zhang, Jianyi
Abstract	Background Chronic ischemic limb disease often leads to amputation, which remains a significant clinical problem. Smooth-muscle cells (SMCs) are crucially involved in the development and progression of many cardiovascular diseases, but studies with primary human SMCs have been limited by a lack of availability. Here, we evaluated the efficiency of two novel protocols for differentiating human induced-pluripotent stem cells (hiPSCs) into SMCs and assessed their potency for the treatment of ischemic limb disease. Methods hiPSCs were differentiated into SMCs via a conventional two-dimensional (2D) protocol that was conducted entirely with cell monolayers, or via two protocols that consisted of an initial five-day three-dimensional (3D) spheroid phase followed by a six-day 2D monolayer phase (3D + 2D differentiation). The 3D phases were conducted in shaker flasks on an orbital shaker (the 3D + 2D shaker protocol) or in a PBS bioreactor (the 3D + 2D bioreactor protocol). Differentiation efficiency was evaluated via the expression of SMC markers (smooth-muscle actin [SMA], smooth muscle protein 22 [SM22], and Calponin-1), and the biological activity of the differentiated hiPSC-SMCs was evaluated via in-vitro assessments of migration (scratch assay), contraction in response to the treatment with a prostaglandin H2 analog (U46619), and tube formation on Geltrex, as well as in-vivo measurements of perfusion (fluorescence angiography) and vessel density in the limbs of mice that were treated with hiPSC-SMCs after experimentally induced hind-limb ischemia (HLI). Results Both 3D + 2D protocols yielded > 5.6 × 107 hiPSC-SMCs/differentiation, which was ~ nine-fold more than that produced via 2D differentiation, and flow cytometry analyses confirmed that > 98% of the 3D + 2D-differentiated hiPSC-SMCs expressed SMA, > 81% expressed SM22, and > 89% expressed Calponin-1. hiPSC-SMCs obtained via the 3D + 2D shaker protocol also displayed typical SMC-like migratory, contraction, and tube-formation activity in-vitro and significantly improved measurements of perfusion, vessel density, and SMA-positive arterial density in the ischemic limb of mouse HLI model. Conclusions Our dynamic 3D + 2D protocols produced an exceptionally high yield of hiPSC-SMCs. Transplantation of these hiPSC-SMCs results in significantly improved recovery of ischemic limb after ischemic injury in mice.
Related Links	https://stemcellres.biomedcentral.com/counter/pdf/10.1186/s13287-024-04053-z.pdf
Ending Page	11
Page Count	11
Starting Page	1
File Format	HTM / HTML
ISSN	17576512
DOI	10.1186/s13287-024-04053-z
Journal	Stem Cell Research & Therapy
Issue Number	1
Volume Number	15
Language	English
Publisher	BioMed Central
Publisher Date	2024-12-03
Access Restriction	Open
Subject Keyword	Stem Cells Cell Biology Regenerative Medicine Tissue Engineering Biomedical Engineering and Bioengineering Human induced pluripotent stem cells Cell differentiation Smooth muscle cells Ischemic limb disease Regenerative Medicine/Tissue Engineering
Content Type	Text
Resource Type	Article
Subject	Cell Biology Medicine Biochemistry, Genetics and Molecular Biology Molecular Medicine
Journal Impact Factor	7.1/2023
5-Year Journal Impact Factor	7.9/2023

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