期刊
FASEB JOURNAL
卷 25, 期 7, 页码 2296-2304出版社
FEDERATION AMER SOC EXP BIOL
DOI: 10.1096/fj.10-174755
关键词
muscle ablation; muscle reconstruction; biocompatible scaffold; cell transplantation
资金
- Fondazione Telethon (Rome, Italy) [GGP07216]
- Fondazione Il Sangue (Milan, Italy)
- Fondazione Citta della Speranza (Malo, Vicenza, Italy) [08/02]
- Great Ormond Street Hospital Charity
- Great Ormond Street Hospital Childrens Charity [V1230] Funding Source: researchfish
The success of skeletal muscle reconstruction depends on finding the most effective, clinically suitable strategy to engineer myogenic cells and biocompatible scaffolds. Satellite cells (SCs), freshly isolated or transplanted within their niche, are presently considered the best source for muscle regeneration. Here, we designed and developed the delivery of either SCs or muscle progenitor cells (MPCs) via an in situ photo-cross-linkable hyaluronan-based hydrogel, hyaluronic acid-photoinitiator (HA-PI) complex. Partially ablated tibialis anterior (TA) of C57BL/6J mice engrafted with freshly isolated satellite cells embedded in hydrogel showed a major improvement in muscle structure and number of new myofibers, compared to muscles receiving hydrogel + MPCs or hydrogel alone. Notably, SCs embedded in HA-PI also promoted functional recovery, as assessed by contractile force measurements. Tissue reconstruction was associated with the formation of both neural and vascular networks and the reconstitution of a functional SC niche. This innovative approach could overcome previous limitations in skeletal muscle tissue engineering.-Rossi, C. A., Flaibani, M., Blaauw, B., Pozzobon, M., Figallo, E., Reggiani, C., Vitiello, L., Elvassore, N., De Coppi, P. In vivo tissue engineering of functional skeletal muscle by freshly isolated satellite cells embedded in a photopolymerizable hydrogel. FASEB J. 25, 2296-2304 (2011). www.fasebj.org
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