Lineage depletion of stromal vascular fractions isolated from human adipose tissue: a novel approach towards cell enrichment technology

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• 作者：S. Indumathi (1)
  Rashmi Mishra (1)
  R. Harikrishnan (1)
  J. S. Rajkumar (1)
  Neha Kantawala (1)
  M. Dhanasekaran (1)
  
• 关键词：Stromal vascular fraction ; Human adipose tissue ; Magnetic activated cell sorting ; Flowcytometry ; Lineage depletion
• 刊名：Cytotechnology
• 出版年：2014
• 出版时间：March 2014
• 年：2014
• 卷：66
• 期：2
• 页码：219-228
• 全文大小：2,087 KB
• 作者单位：S. Indumathi (1)
  Rashmi Mishra (1)
  R. Harikrishnan (1)
  J. S. Rajkumar (1)
  Neha Kantawala (1)
  M. Dhanasekaran (1)
  
  1. Department of Stem Cells, Lifeline Multispeciality Hospital, Chennai, 600 096, India
  
• ISSN：1573-0778

文摘

The therapeutic rationale for tissue repair and regeneration using stem cells is at its infancy and needs advancement in understanding the role of individual component’s innate capability. As stem cells of adipose tissue reside in a more heterogeneous population of stromal vascular fractions, cell separation or sorting becomes an eminent step towards revealing their unique properties. This study elucidates the comparative efficacy of lineage depleted adipose derived stromal vascular fraction (SVF) and their innate ability using magnetic activated cell sorter (MACS). To this end, isolated SVF from human adipose tissue was lineage depleted according to the manufacturer’s instructions using specific antibody cocktail through MACS. The enriched lineage negative (lin? and lineage positive (lin+) cell fractions were cultured, phenotypically characterized for the panel of cell surface markers using flowcytometry and subjected to osteoblastic and adipogenic differentiation. The expression profile obtained for lin?cells was CD34?CD45?HLADR?CD49d?CD140b?CD31?CD90+/CD105+/CD73+/CD54+/CD166+/CD117?when compared to Lin+ cells expressing CD34+/CD45+/HLADR?CD49d?CD140b+/CD31?CD90+/CD105+/CD73+/CD54+/CD166+/CD117+ (CD—cluster of differentiation). These results, thus, advances our understanding on the inherent property of the individual cell population. Furthermore, both the fractions exhibited mesodermal lineage differentiation capacity. To conclude, this research pursuit rationalized the regenerative therapeutic applicability of both lin?and lin+ cultures of human adipose tissue for disorders of mesodermal, haematological and vascular origin.