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Directed differential behaviors of multipotent adult stem cells from decellularized tissue/organ extracellular matrix bioinks

  • Han, W.
  • Singh, N.K.
  • Kim, J.J.
  • Kim, H.
  • Kim, B.S.
  • Park, J.Y.
  • Jang, J.
  • Cho, D.-W.
Publication Date
Oct 10, 2019
[email protected]
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The decellularized tissue/organ extracellular matrix (dECM) is a naturally derived biomaterial that inherits various functional components from the native tissue or organ. Recently, various kinds of tissue/organ dECM bioinks capable of encapsulating cells, combined with 3D cell printing, have enabled remarkable progress in tissue engineering and regenerative medicine. However, the way in which the dECM component compositions of each tissue of different origins interact with cells and dictate tissue-specific cell behavior in the 3D micro-environment remains mostly unknown. To address this issue, in-depth differential proteomic analyses of four porcine dECMs were performed. Specifically, the differential variations of matrisome protein composition in each decellularized tissue type were also uncovered, which can play a significant role by affecting the resident cells in specific tissues. Furthermore, microarray analyses of human bone marrow mesenchymal stem cells (hBMMSCs) printed with various dECM bioinks were conducted to reveal the effect of compositional variations in a tissue-specific manner at the cellular level depending on the multipotency of MSCs. Through whole transcriptome analysis, differential expression patterns of genes were observed in a tissue-specific manner, and this research provides strong evidence of the tissue-specific functionalities of dECM bioinks. / 1 / N

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