Isolation of human foetal myoblasts and its application for microencapsulation

Area of Science:

• Cell Biology
• Regenerative Medicine
• Biotechnology

Background:

• Fetal cells exhibit enhanced growth factors, reduced immune response, and superior proliferation compared to adult cells.
• These properties make fetal cells highly suitable for genetic modification and microencapsulated cellular gene therapeutics.

Purpose of the Study:

• To establish an in vitro system for isolating pure primary human fetal myoblasts.
• To evaluate the proliferation and differentiation potential of these myoblasts in monolayer and after microencapsulation.
• To compare their characteristics with murine myoblast C2C12 cells.

Main Methods:

• Isolation of primary human fetal myoblasts through selection on non-collagen coated plates.
• Identification of myoblasts using desmin staining.
• Assessment of proliferation, differentiation (creatine phosphokinase, MHC, myotubule formation), and lifespan (population doublings, population time).
• Comparison with murine C2C12 myoblast cell line.

Main Results:

• A pure population of primary human fetal myoblasts was successfully obtained.
• These myoblasts demonstrated robust proliferation and enhanced differentiation compared to C2C12 cells.
• The cells exhibited a lifespan of 70 population doublings with a population time of 18-24 hours.
• Successful microencapsulation and differentiation were observed.

Conclusions:

• A protocol for isolating human fetal primary myoblasts with excellent differentiation potential, robust growth, and longevity has been developed.
• These isolated fetal myoblasts are promising candidates for cell-based therapy in human clinical applications utilizing microencapsulation technology.
• The findings support the use of fetal myoblasts in advanced therapeutic strategies.