Adipose tissue engineering with human adipose tissue-derived adult stem cells and a novel porous scaffold

作者：Wang, Wei; Cao, Bin; Cui, Lei; Cai, Jinglong^*; Yin, Jingbo

来源：Journal of Biomedical Materials Research Part B: Applied Biomaterials , 2013, 101B(1): 68-75.

DOI：10.1002/jbm.b.32816

• tissue engineering
• adipose tissue-derived adult stem cell
• adipogenic differentiation
• poly(L-glutamic acid)
• porous scaffolds

We investigated the effect of a novel porous scaffold composed with water-soluble poly(L-glutamic acid) (PLGA) and chitosan (CS) on the attachment, proliferation, and adipogenic differentiation of human adipose tissue-derived adult stem cells (ADSCs) in vitro and in vivo. Scanning electron microscope and fluorescent Dil labeling were used to reveal the attachment and growth of ADSCs on scaffolds; cell proliferation was detected by DNA assay. The adipogenic differentiation potential of ADSCs on the scaffolds was assayed by Oil-red O staining and further confirmed by reverse transcriptase polymerase chain reaction (RT-PCR) for adipogenic gene markers (peroxisome proliferator-activated receptor ?2, lipoprotein lipase, fatty acid-binding protein, adiponectin). Cell-seeded constructs exposed to adipogenic medium for 2 weeks in vitro were implanted in severe combined immunodeficient (SCID) mice for 6 weeks. It was shown that ADSCs attached and spread well on scaffolds with good proliferation behaviors and abundance of extracellular matrix deposition. Oil-red O staining and RT-PCR showed adipogenic differentiation potential of ADSCs on scaffolds. Newly formed adipose-like tissue was confirmed in vivo in SCID mice by Oil-red O staining. PLGA/CS porous scaffolds exhibit good compatibility to ADSCs and can be promising biomaterials for adipose tissue engineering.

• 出版日期2013-1
• 单位上海交通大学; 山东大学; 上海大学; 中国医学科学院整形外科医院