BACKGROUND AIMS: Age-related changes that could affect the biologic features of mesenchymal stromal cells (MSC), such as a decrease in proliferation and osteoblast differentiation capacity and an increase of senescence markers and apoptosis, have been reported recently. The aim of this study was the evaluation of age-related characteristics and the correlation of age with the functional properties of MSC. METHODS: The doubling time (DT), colony-forming unit–fibroblast (CFU-F) colonies and surface antigen expression of MSC isolated from bone marrow (BM) of children (C-MSC) were compared with those from adults (A-MSC). The expression of Oct-4 and Nanog transcripts and the relative telomere length were evaluated in both groups. RESULTS: DT values were lower in C-MSC compared with A-MSC, and a higher CFU-F count was observed in children. However, the expression of Oct-4 and Nanog did not differ between C-MSC and A-MSC and was not correlated with the proliferative capacity. The telomere length was significantly higher in C-MSC compared with A-MSC. CONCLUSIONS: These data suggest that children's BM-derived MSC could be a more advantageous source of these cells for tissue engineering and cell therapy.
BACKGROUND AIMS: Age-related changes that could affect the biologic features of mesenchymal stromal cells (MSC), such as a decrease in proliferation and osteoblast differentiation capacity and an increase of senescence markers and apoptosis, have been reported recently. The aim of this study was the evaluation of age-related characteristics and the correlation of age with the functional properties of MSC. METHODS: The doubling time (DT), colony-forming unit–fibroblast (CFU-F) colonies and surface antigen expression of MSC isolated from bone marrow (BM) of children (C-MSC) were compared with those from adults (A-MSC). The expression of Oct-4 and Nanog transcripts and the relative telomere length were evaluated in both groups. RESULTS:DT values were lower in C-MSC compared with A-MSC, and a higher CFU-F count was observed in children. However, the expression of Oct-4 and Nanog did not differ between C-MSC and A-MSC and was not correlated with the proliferative capacity. The telomere length was significantly higher in C-MSC compared with A-MSC. CONCLUSIONS: These data suggest that children's BM-derived MSC could be a more advantageous source of these cells for tissue engineering and cell therapy.
Authors: Deanne M Taylor; Bruce J Aronow; Kai Tan; Kathrin Bernt; Nathan Salomonis; Casey S Greene; Alina Frolova; Sarah E Henrickson; Andrew Wells; Liming Pei; Jyoti K Jaiswal; Jeffrey Whitsett; Kathryn E Hamilton; Sonya A MacParland; Judith Kelsen; Robert O Heuckeroth; S Steven Potter; Laura A Vella; Natalie A Terry; Louis R Ghanem; Benjamin C Kennedy; Ingo Helbig; Kathleen E Sullivan; Leslie Castelo-Soccio; Arnold Kreigstein; Florian Herse; Martijn C Nawijn; Gerard H Koppelman; Melissa Haendel; Nomi L Harris; Jo Lynne Rokita; Yuanchao Zhang; Aviv Regev; Orit Rozenblatt-Rosen; Jennifer E Rood; Timothy L Tickle; Roser Vento-Tormo; Saif Alimohamed; Monkol Lek; Jessica C Mar; Kathleen M Loomes; David M Barrett; Prech Uapinyoying; Alan H Beggs; Pankaj B Agrawal; Yi-Wen Chen; Amanda B Muir; Lana X Garmire; Scott B Snapper; Javad Nazarian; Steven H Seeholzer; Hossein Fazelinia; Larry N Singh; Robert B Faryabi; Pichai Raman; Noor Dawany; Hongbo Michael Xie; Batsal Devkota; Sharon J Diskin; Stewart A Anderson; Eric F Rappaport; William Peranteau; Kathryn A Wikenheiser-Brokamp; Sarah Teichmann; Douglas Wallace; Tao Peng; Yang-Yang Ding; Man S Kim; Yi Xing; Sek Won Kong; Carsten G Bönnemann; Kenneth D Mandl; Peter S White Journal: Dev Cell Date: 2019-03-28 Impact factor: 12.270