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Intrinsic mechanisms underlying the neurotrophic activity of adipose derived stem cells
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Anatomy.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Anatomy.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Anatomy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Hand Surgery.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Anatomy.
2015 (English)In: Experimental Cell Research, ISSN 0014-4827, E-ISSN 1090-2422, Vol. 331, no 1, 142-151 p.Article in journal (Refereed) Published
Abstract [en]

Adipose derived stem cells (ADSC) can be differentiated into Schwann cell-like cells which enhance nerve function and regeneration. However, the signalling mechanisms underlying the neurotrophic potential of ADSC remain largely unknown. In this study, we hypothesised that ADSC, upon stimulation with a combination of growth factors, could rapidly produce brain derived neurotrophic factor (BDNF) with a similar molecular mechanism to that functioning in the nervous system. Within 48h of stimulation, ADSC demonstrated potent neurotrophic effects on dorsal root ganglion neurons, at a magnitude equivalent to that of the longer term differentiated Schwann cell-like cells. Stimulated ADSC showed rapid up-regulation of the neuronal activity dependent promoter BDNF exon IV along with an augmented expression of full length protein encoding BDNF exon IX. BDNF protein was secreted at a concentration similar to that produced by differentiated Schwann cell-like cells. Stimulation also activated the BDNF expression gating transcription factor, cAMP responsive element binding (CREB) protein. However, blocking phosphorylation of CREB with the protein kinase A small molecule inhibitor H89 did not suppress secretion of BDNF protein. These results suggest rapid BDNF production in ADSC is mediated through multiple compensatory pathways independent of, or in addition to, the CREB neuronal activation cascade.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 331, no 1, 142-151 p.
Keyword [en]
brain derived neurotrophic factor, differentiation, neurite, regeneration, stem cells
National Category
Neurosciences
Identifiers
URN: urn:nbn:se:umu:diva-93009DOI: 10.1016/j.yexcr.2014.08.034ISI: 000348631600013PubMedID: 25193075OAI: oai:DiVA.org:umu-93009DiVA: diva2:745212
Available from: 2014-09-10 Created: 2014-09-10 Last updated: 2017-12-05Bibliographically approved

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Tse, Kai-HeiNovikov, Lev NWiberg, MikaelKingham, Paul J

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