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Updated: Mar 21, 2026
Comparable Decellularization of Fetal and Adult Cardiac Tissue Explants as 3D-like Platforms for In Vitro Studies
Published on: March 21, 2019
Modification of decellularized vascular scaffold with conditioned medium to enhance cell reseeding
Liang Zhao1,2, Hong-Li Chen1,2, Li-Qin Xie1,2
1a College of Life Sciences and Technology , Xinxiang Medical University , Xinxiang , PR China.
Abstract:
Repopulation of decellularized vascular scaffolds (DVS) is limited because of change in the repertoire and ratios of the remaining extracellular matrix (ECM) proteins, for example, loss of glycoproteins and the retention of type I collagen. Pre-treatment of DVS with defined ECM proteins, which match the repertoire of integrin receptors expressed by the embryonic stem cells (mESCs) to be seeded, can increase the reseeding efficacy. mESCs mainly express high levels of functional receptors for LM and FN. Reseeding efficiency of DVS with mESCs was very low, but was sigficantly increased (2.5 ± 0.1 fold) by pre-treating the DVS with A549-conditioned media. In addition, pre-treatment with A549-conditioned media led to a more homogeneous distribution of the seeded mESCs throughout the engineered blood vessel as compared to untreated DVS. This paper may promote blood vessel engineering by stressing the importance of matching the cell binding motifs of DVS and the integrin receptor repertoire of seeded cells.
