Chromosomal stability of mesenchymal stromal cells during in vitro culture

详细信息    查看全文

• 作者：Brian G. Stultz ; Kathleen McGinnis ; Elaine E. Thompson ; Jessica L. Lo Surdo ; Steven R. Bauer ; Deborah A. Hursh ; ^{deborah.hursh@fda.hhs.gov" class="auth_mail" title="E-mail the corresponding author}
• 关键词：genomic stability ; mesenchymal stromal cells ; MSC ; SKY ; spectral karyotyping
• 刊名：Cytotherapy
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：18
• 期：3
• 页码：336-343
• 全文大小：1627 K

文摘

Mesenchymal stromal cells (MSCs) are being investigated for use in cell therapy. The extensive in vitro expansion necessary to obtain sufficient cells for clinical use increases the risk that genetically abnormal cells will arise and be propagated during cell culture. Genetic abnormalities may lead to transformation and poor performance in clinical use, and are a critical safety concern for cell therapies using MSCs.

Methods

We used spectral karyotyping (SKY) to investigate the genetic stability of human MSCs from ten donors during passaging.

Results

Our data indicate that chromosomal abnormalities exist in MSCs at early passages and can be clonally propagated. The karyotypic abnormalities observed during our study diminished during passage.

Conclusions

Karyotyping of MSCs reveals characteristics which may be valuable in deciding the suitability of cells for further use. Karyotypic analysis is useful for monitoring the genetic stability of MSCs during expansion.