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Electrospun Fibrous Scaffolds of Polyglycerol-dodecanedioate for Engineering Neural Tissues From Mouse Embryonic Stem Cells

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Ductile electroactive biodegradable hyperbranched polylactide copolymers enhancing myoblast differentiation.

Meihua Xie¹, Ling Wang¹, Baolin Guo¹

¹Center for Biomedical Engineering and Regenerative Medicine, Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.

|September 4, 2015

Summary

New electroactive, ductile, and degradable copolymers (HPLAAT) significantly enhance myoblast differentiation into myotubes. These advanced biomaterials show great promise for muscle tissue engineering and muscular repair applications.

Keywords:

Aniline oligomer Degradable conducting polymers Ductile electroactive copolymer Polylactide Skeletal muscle regeneration

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Area of Science:

Biomaterials Science
Tissue Engineering
Polymer Chemistry

Background:

Myotube formation is essential for muscle repair.
Developing enhanced biomaterials for myoblast differentiation is critical.

Purpose of the Study:

Synthesize and characterize novel electroactive, ductile, and degradable copolymers (HPLAAT).
Evaluate the efficacy of HPLAAT in promoting myoblast differentiation and myotube formation in vitro.

Main Methods:

Hyperbranched ductile polylactide (HPLA) was synthesized and copolymerized with aniline tetramer (AT).
Materials characterization included ductility, electroactivity (UV-Vis, cyclic voltammetry), thermal stability, and biodegradation.
C2C12 myoblasts were cultured on HPLA and HPLAAT for in vitro differentiation studies.

Main Results:

HPLAAT copolymers exhibited excellent ductility, electroactivity, improved thermal stability, and controlled degradation.
HPLAAT significantly enhanced C2C12 myoblast proliferation compared to HPLA.
Quantitative analysis revealed promoted myogenic differentiation, including increased myotube number, length, diameter, and maturation index, alongside elevated MyoD and TNNT gene expression.

Conclusions:

Electroactive, ductile, and degradable HPLAAT copolymers represent superior biomaterials for muscle tissue engineering.
These HPLAAT polymers demonstrate significant potential for enhancing muscle repair strategies.