Discrepancies on the Role of Oxygen Gradient and Culture Condition on Mesenchymal Stem Cell Fate

J.R.K. Samal, V.K. Rangasami, S. Samanta, O.P. Varghese, O.P. Oommen*

*Corresponding author for this work

Research output: Contribution to journal(Systematic) Review article peer-review

16 Citations (Web of Science)

Abstract

Over the past few years, mesenchymal stem (or stromal) cells (MSCs) have garnered enormous interest due to their therapeutic value especially for their multilineage differentiation potential leading to regenerative medicine applications. MSCs undergo physiological changes upon in vitro expansion resulting in expression of different receptors, thereby inducing high variabilities in therapeutic efficacy. Therefore, understanding the biochemical cues that influence the native local signals on differentiation or proliferation of these cells is very important. There have been several reports that in vitro culture of MSCs in low oxygen gradient (or hypoxic conditions) upregulates the stemness markers and promotes cell proliferation in an undifferentiated state, as hypoxia mimics the conditions the progenitor cells experience within the tissue. However, different studies report different oxygen gradients and culture conditions causing ambiguity in their interpretation of the results. In this progress report, it is aimed to summarize recent studies in the field with specific focus on conflicting results reported during the application of hypoxic conditions for improving the proliferation or differentiation of MSCs. Further, it is tried to decipher the factors that can affect characteristics of MSC under hypoxia and suggest a few techniques that could be combined with hypoxic cell culture to better recapitulate the MSC tissue niche.
Original languageEnglish
Article number2002058
Number of pages18
JournalAdvanced Healthcare Materials
Volume10
Issue number6
DOIs
Publication statusPublished - Mar 2021

Keywords

  • differentiation
  • expansion
  • free-radicals
  • human adipose-tissue
  • hypoxia
  • hypoxia increases
  • in-vitro
  • increased proliferation
  • induced chondrogenesis
  • marrow stromal cells
  • mesenchymal stem cells
  • osteogenic differentiation
  • oxygen gradients
  • proliferation
  • tension
  • OSTEOGENIC DIFFERENTIATION
  • TENSION
  • INCREASED PROLIFERATION
  • IN-VITRO
  • INDUCED CHONDROGENESIS
  • MARROW STROMAL CELLS
  • FREE-RADICALS
  • HUMAN ADIPOSE-TISSUE
  • EXPANSION
  • HYPOXIA INCREASES

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