Simple Isolation of Human Bone Marrow Adipose Tissue-Derived Mesenchymal Stem/Stromal Cells

Area of Science:

• Biomedical Science
• Cell Biology
• Tissue Engineering

Background:

• Bone marrow adipose tissue (BMAT) is crucial in leukemia, metastasis, and bone marrow failure.
• BMAT adipocytes interact with hematopoietic stem/progenitor cells and osteoblasts.
• Current human BMAT isolation methods lack standardization and may not reflect in vivo conditions.

Purpose of the Study:

• To develop a direct, standardized, and non-enzymatic method for isolating human BMAT.
• To establish a reliable protocol for obtaining viable human BMAT for research.

Main Methods:

• Isolation of human BMAT-MSCs from the fatty layer of bone marrow aspirates from healthy donors.
• Utilized centrifugation and washing steps, avoiding enzymatic digestion.
• Characterization of isolated cells using ISCT criteria, flow cytometry, multilineage differentiation assays, and qRT-PCR.

Main Results:

• Successfully isolated human BMAT-MSCs using a direct, simple, and non-enzymatic protocol.
• Validated the isolated cells' identity and differentiation potential according to established criteria.
• Established protocols for culture expansion, cryopreservation, and characterization of BMAT-MSCs.

Conclusions:

• The developed protocol provides a standardized and accessible method for human BMAT isolation.
• This method facilitates further research into BMAT's role in physiological and pathological processes.
• The characterized BMAT-MSCs are suitable for various downstream applications in regenerative medicine and disease modeling.