A Simple, Rapid, and Efficient Method for Isolating Mesenchymal Stem Cells From the Entire Umbilical Cord

Area of Science:

• Stem Cell Biology
• Regenerative Medicine
• Biotechnology

Background:

• Mesenchymal stem cells (MSCs) are crucial for regenerative medicine.
• The umbilical cord (UC) is a promising source of MSCs due to its abundance and uniformity.
• Standardized, high-yield MSC isolation methods are needed to meet increasing demand.

Purpose of the Study:

• To develop and present a modulated explant/enzyme method (MEEM) for maximizing MSC isolation from the entire UC.
• To establish a reproducible and cost-efficient protocol for large-scale MSC production.
• To characterize the isolated MSCs for their potential in cell therapy.

Main Methods:

• A novel modulated explant/enzyme method (MEEM) was employed to isolate MSCs from all regions of the UC.
• Primary culture was performed over 8–10 days, followed by expansion for 28–30 days through three passages.
• Characterization included immunophenotyping (CD markers) and gene expression analysis (SOX2, OCT4, NANOG), alongside differentiation assays.

Main Results:

• MEEM successfully isolated 6–10 million MSCs in the primary culture within 8–10 days.
• After three passages, 8–10 × 10^8 cells were obtained in 28–30 days.
• Isolated MSCs expressed key markers (CD73, CD90, CD105, CD44, SOX2, OCT4, NANOG) and differentiated into adipocytes and osteocytes.

Conclusions:

• The MEEM is a simple, reproducible, and cost-efficient method for isolating large quantities of high-quality MSCs from UC.
• This method enables the production of sufficient MSCs for cell therapy within a month.
• The characterized MSCs hold significant potential for applications in regenerative medicine.