Bone marrow niche-mimetics modulate HSPC function via integrin signaling

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

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

OriginalspracheEnglisch
Aufsatznummer2549
Seitenumfang15
FachzeitschriftScientific Reports
Jahrgang7
Ausgabenummer1
PublikationsstatusVeröffentlicht - 1 Dez. 2017
Peer-Review-StatusJa

Externe 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

Schlagworte

ASJC Scopus Sachgebiete