Bone marrow niche-mimetics modulate HSPC function via integrin signaling

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

The bone marrow (BM) microenvironment provides critical physical cues for hematopoietic stem and progenitor cell (HSPC) maintenance and fate decision mediated by cell-matrix interactions. However, the mechanisms underlying matrix communication and signal transduction are less well understood. Contrary, stem cell culture is mainly facilitated in suspension cultures. Here, we used bone marrow-mimetic decellularized extracellular matrix (ECM) scaffolds derived from mesenchymal stromal cells (MSCs) to study HSPC-ECM interaction. Seeding freshly isolated HSPCs adherent (AT) and non-adherent (SN) cells were found. We detected enhanced expansion and active migration of AT-cells mediated by ECM incorporated stromal derived factor one. Probing cell mechanics, AT-cells displayed naïve cell deformation compared to SN-cells indicating physical recognition of ECM material properties by focal adhesion. Integrin αIIb (CD41), αV (CD51) and β3 (CD61) were found to be induced. Signaling focal contacts via ITGβ3 were identified to facilitate cell adhesion, migration and mediate ECM-physical cues to modulate HSPC function.

Details

Original languageEnglish
Article number2549
Number of pages15
JournalScientific Reports
Volume7
Issue number1
Publication statusPublished - 1 Dec 2017
Peer-reviewedYes

External IDs

Scopus 85019970720
PubMed 28566689
researchoutputwizard legacy.publication#78627
researchoutputwizard legacy.publication#78917
ORCID /0000-0001-7803-1972/work/142235052
ORCID /0000-0003-0189-3448/work/159607162

Keywords

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