Assessing the combined effect of surface topography and substrate rigidity in human bone marrow stem cell cultures.
biodegradable polyesters
stem cell differentiation
substrate stiffness
surface topography
Journal
Engineering in life sciences
ISSN: 1618-0240
Titre abrégé: Eng Life Sci
Pays: Germany
ID NLM: 101193313
Informations de publication
Date de publication:
Oct 2022
Oct 2022
Historique:
received:
31
05
2022
revised:
08
08
2022
accepted:
10
08
2022
entrez:
17
10
2022
pubmed:
18
10
2022
medline:
18
10
2022
Statut:
epublish
Résumé
The combined effect of surface topography and substrate rigidity in stem cell cultures is still under-investigated, especially when biodegradable polymers are used. Herein, we assessed human bone marrow stem cell response on aliphatic polyester substrates as a function of anisotropic grooved topography and rigidity (7 and 12 kPa). Planar tissue culture plastic (TCP, 3 GPa) and aliphatic polyester substrates were used as controls. Cell morphology analysis revealed that grooved substrates caused nuclei orientation/alignment in the direction of the grooves. After 21 days in osteogenic and chondrogenic media, the 3 GPa TCP and the grooved 12 kPa substrate induced significantly higher calcium deposition and alkaline phosphatase (ALP) activity and glycosaminoglycan (GAG) deposition, respectively, than the other groups. After 14 days in tenogenic media, the 3 GPa TCP upregulated four and downregulated four genes; the planar 7 kPa substrate upregulated seven genes and downregulated one gene; and the grooved 12 kPa substrate upregulated seven genes and downregulated one gene. After 21 days in adipogenic media, the softest (7 kPa) substrates induced significantly higher oil droplet deposition than the other substrates and the grooved substrate induced significantly higher droplet deposition than the planar. Our data pave the way for more rational design of bioinspired constructs.
Identifiants
pubmed: 36247829
doi: 10.1002/elsc.202200029
pii: ELSC1539
pmc: PMC9550738
doi:
Types de publication
Journal Article
Langues
eng
Pagination
619-633Informations de copyright
© 2022 The Authors. Engineering in Life Sciences published by Wiley‐VCH GmbH.
Déclaration de conflit d'intérêts
S.R. was an early career researcher recruited at Sofradim Production, Medtronic, France and registered for PhD at NUI Galway, Ireland. Y.B. is an employee of Sofradim Production, Medtronic, France. E.P., S.H.K., E.M.F., M.E.G., R.L.R., A.O'R, and D.I.Z. declare no conflicts of interest.
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