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Overexpression of hypoxia-inducible factor 1 alpha improves immunomodulation by dental mesenchymal stem cells
Data de publicació:
Autors de IIS La Fe
Autors aliens a IIS La Fe
- Martinez, VG
- Ricardo, CP
- Harding, SE
- Sacedon, R
- Varas, A
- Zapata, A
- Vicente, A
Grups d'Investigació
Abstract
Background: Human dental mesenchymal stem cells (MSCs) are considered as highly accessible and attractive MSCs for use in regenerative medicine, yet some of their features are not as well characterized as other MSCs. Hypoxia-preconditioning and hypoxia-inducible factor 1 (HIF-1) alpha overexpression significantly improves MSC therapeutics, but the mechanisms involved are not fully understood. In the present study, we characterize immunomodulatory properties of dental MSCs and determine changes in their ability to modulate adaptive and innate immune populations after HIF-1 alpha overexpression. Methods: Human dental MSCs were stably transduced with green fluorescent protein (GFP-MSCs) or GFP-HIF-1 alpha lentivirus vectors (HIF-MSCs). A hypoxic-like metabolic profile was confirmed by mitochondrial and glycolysis stress test. Capacity of HIF-MSCs to modulate T-cell activation, dendritic cell differentiation, monocyte migration, and polarizations towards macrophages and natural killer (NK) cell lytic activity was assessed by a number of functional assays in co-cultures. The expression of relevant factors were determined by polymerase chain reaction (PCR) analysis and enzyme-linked immunosorbent assay (ELISA). Results: While HIF-1 alpha overexpression did not modify the inhibition of T-cell activation by MSCs, HIF-MSCs impaired dendritic cell differentiation more efficiently. In addition, HIF-MSCs showed a tendency to induce higher attraction of monocytes, which differentiate into suppressor macrophages, and exhibited enhanced resistance to NK cell-mediated lysis, which supports the improved therapeutic capacity of HIF-MSCs. HIF-MSCs also displayed a pro-angiogenic profile characterized by increased expression of CXCL12/SDF1 and CCL5/RANTES and complete loss of CXCL10/IP10 transcription. Conclusions: Immunomodulation and expression of trophic factors by dental MSCs make them perfect candidates for cell therapy. Overexpression of HIF-1 alpha enhances these features and increases their resistance to allogenic NK cell lysis and, hence, their potential in vivo lifespan. Our results further support the use of HIF-1 alpha-expressing dental MSCs for cell therapy in tissue injury and immune disorders.
Dades de la publicació
- ISSN/ISSNe:
- 1757-6512, 1757-6512
- Tipus:
- Article
- Pàgines:
- 208-208
- PubMed:
- 28962641
- Factor d'Impacte:
- 1,685 SCImago ℠
- Quartil:
- Q1 SCImago ℠
STEM CELL RESEARCH & THERAPY BIOMED CENTRAL LTD
Cites Rebudes en Web of Science: 63
Documents
- No hi ha documents
Filiacions
Keywords
- Mesenchymal stem cells (MSCs); Hypoxia-inducible factor 1 alpha subunit (HIF-1 alpha); Immunomodulation; Cell therapy; Dental pulp
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