Optimizing mesenchymal stem cell therapy: from isolation to GMP-compliant expansion for clinical application

Area of Science:

• Regenerative Medicine
• Cell Therapy Manufacturing

Background:

• Mesenchymal stem cells (MSCs) show therapeutic promise but require standardized Good Manufacturing Practices (GMP) for clinical translation.
• Infrapatellar fat pad-derived MSCs (FP-MSCs) are a viable source for cell-based therapies.
• Developing GMP-compliant protocols is crucial for the clinical application of FP-MSCs.

Purpose of the Study:

• To optimize culture conditions for FP-MSCs using animal-free media.
• To establish GMP-compliant protocols for the isolation, manufacturing, and storage of FP-MSCs (GMP-FP-MSCs).

Main Methods:

• Evaluated two animal-free media formulations for FP-MSC culture, assessing proliferation (doubling time) and potency (colony-forming unit assay).
• Optimized and characterized GMP-FP-MSC isolation and expansion from multiple donors according to GMP standards.
• Assessed viability, sterility, purity, identity, and post-thaw stability of GMP-FP-MSCs.

Main Results:

• FP-MSCs cultured in MSC-Brew GMP Medium showed significantly enhanced proliferation and potency compared to standard media.
• GMP-FP-MSCs met all release specifications, including >95% viability and sterility, after storage up to 180 days.
• Demonstrated reproducibility and robustness of GMP-FP-MSC isolation and storage protocols.

Conclusions:

• Infrapatellar fat pad-derived MSCs can be manufactured under GMP conditions for clinical use.
• Optimized culture protocols are essential for improving MSC proliferation and potency in cell-based therapies.