A Simple Method to Determine the Purity of Adipose-Derived Stem Cell-Based Cell Therapies.
Dufrane D., Lafosse A.
Laboratory Study with a reported sample of 8, published in Stem Cells Transl Med (2016) — summary generated from the PubMed abstract.
Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.
- Level A · Stronger Clinical Evidence
- Level B · Emerging clinical evidence with positive signals
- Level C · Early human research exploring benefits
- Level D · Scientific groundwork from lab and animal studies
- Emerging · Emerging topic under active research
This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.
- Study type
- Laboratory Study
- Journal
- Stem Cells Transl Med (2016)
- Country
- England
- Reported sample size
- 8
- Source database
- PubMed
- PMID
- 27400794
- PMCID
- PMC5070509
- DOI
- 10.5966/sctm.2016-0013
- Citations
- 6
Abstract (original English)
: It is important to standardize methods to quantify the purity of adipose tissue-derived cells for regenerative medicine. We developed a simple and robust tool to discriminate fibroblasts and adipose stem cells (ASCs) by testing release of specific growth factors. ASCs and dermal fibroblasts (DFs) were isolated from human donors (n = 8). At passage 4, cultures were prepared with progressive ASC/DF ratios of 100%/0%, 75%/25%, 50%/50%, 25%/75%, and 0%/100% for each donor and incubated in hypoxic chambers at 0.1% and 5% O 2 and hyperglycemia at 1.0 and 4.5 g/l. After incubation for 24 hours, cell survival, proliferation, and growth factor release (vascular endothelial growth factor [VEGF], hepatocyte growth factor [HGF], insulin-like growth factor 1 [IGF-1], stromal cell-derived factor 1α [SDF-1α], and basic fibroblast growth factor [bFGF]) were assessed for each condition. The proliferation and viability of ASCs and DFs were not impacted by the oxygen tension conditions. No significant difference in HGF, IGF-1, bFGF, and keratinocyte growth factor secretome was found across the various ASC/DF ratios. Interestingly, a negative relation for VEGF secretion was found when ASCs were contaminated by fibroblasts, especially when cells were exposed to 4.5 g/l glucose and 0.1% O 2 (R = -0.521; p < .001). In contrast, secretion of SDF-1α was positively correlated with the fibroblast ratio
What this study does not prove
- • This study does not prove SVF is an approved treatment or a replacement for standard care.
- • This is preclinical work; animal or laboratory results cannot be applied to humans.
Evidence level
Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.
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