title: Modification of decellularized vascular scaffold with conditioned medium to enhance cell reseeding.
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.
authors.affiliation: a College of Life Sciences and Technology , Xinxiang Medical University , Xinxiang , PR China.|b Key Laboratory of Biomedical Materials , Xinxiang Medical University , Xinxiang , PR China.
authors.forename: Liang
authors.initials: L
authors.lastname: Zhao
authors.affiliation: a College of Life Sciences and Technology , Xinxiang Medical University , Xinxiang , PR China.|b Key Laboratory of Biomedical Materials , Xinxiang Medical University , Xinxiang , PR China.
authors.forename: Hong-Li
authors.initials: HL
authors.lastname: Chen
authors.affiliation: a College of Life Sciences and Technology , Xinxiang Medical University , Xinxiang , PR China.|b Key Laboratory of Biomedical Materials , Xinxiang Medical University , Xinxiang , PR China.
authors.forename: Li-Qin
authors.initials: LQ
authors.lastname: Xie
authors.affiliation: a College of Life Sciences and Technology , Xinxiang Medical University , Xinxiang , PR China.|b Key Laboratory of Biomedical Materials , Xinxiang Medical University , Xinxiang , PR China.
authors.forename: Mian
authors.initials: M
authors.lastname: Wang
authors.affiliation: c Basic Medical College , Xinxiang Medical University , Xinxiang , PR China.
authors.forename: Xia-Fei
authors.initials: XF
authors.lastname: Li
authors.affiliation: a College of Life Sciences and Technology , Xinxiang Medical University , Xinxiang , PR China.|b Key Laboratory of Biomedical Materials , Xinxiang Medical University , Xinxiang , PR China.
authors.forename: Zhi-Wei
authors.initials: ZW
authors.lastname: Feng
authors.affiliation: d College of Life Sciences , Fujian Normal University , Fuzhou , PR China.
authors.forename: Min
authors.initials: M
authors.lastname: Li
mesh_terms: D000072283:A549 Cells; D000818:Animals; D001807:Blood Vessel Prosthesis; D001808:Blood Vessels / Q000166:cytology; D002448:Cell Adhesion; D049109:Cell Proliferation; D002470:Cell Survival; D017077:Culture Media, Conditioned / Q000737:chemistry*; D053595:Embryonic Stem Cells / Q000166:cytology / Q000502:physiology; D016326:Extracellular Matrix Proteins / Q000378:metabolism*; D006801:Humans; D016023:Integrins / Q000378:metabolism; D007797:Laminin / Q000378:metabolism; D008297:Male; D051379:Mice; D017207:Rats, Sprague-Dawley; D013499:Surface Properties; D023822:Tissue Engineering / Q000379:methods*; D054457:Tissue Scaffolds
chemical_list: D017077:Culture Media, Conditioned; D016326:Extracellular Matrix Proteins; D016023:Integrins; D007797:Laminin
keywords: Acellular matrix; blood vessel; cell adhesion; embryonic stem cells; extracellular matrix (ECM); integrin