Late adherent human bone marrow stromal cells form bone and restore the hematopoietic microenvironment in vivo.

Abstract:

:Bone marrow stromal cells (BMSCs) are a valuable resource for skeletal regenerative medicine because of their osteogenic potential. In spite of the very general term "stem cell," this population of cells is far from homogeneous, and different BMSCs clones have greatly different phenotypic properties and, therefore, potentially different therapeutic potential. Adherence to a culture flask surface is a primary defining characteristic of BMSCs. We hypothesized that based on the adherence time we could obtain an enriched population of cells with a greater therapeutic potential. We characterized two populations of bone marrow-derived cells, those that adhered by three days (R-cells) and those that did not adhere by three days but did by six days (L-cells). Clones derived from L-cells could be induced into adipogenic, chondrogenic, and osteogenic differentiation in vitro. L-cells appeared to have greater proliferative capacity, as manifested by larger colony diameter and clones with higher CD146 expression. Only clones from L-cells developed bone marrow stroma in vivo. We conclude that the use of late adherence of BMSCs is one parameter that can be used to enrich for cells that will constitute a superior final product for cell therapy in orthopedics.

journal_name

Biomed Res Int

authors

Vianna VF,Bonfim DC,Cavalcanti Ados S,Fernandes MC,Kahn SA,Casado PL,Lima IC,Murray SS,Murray EJ,Duarte ME

doi

10.1155/2013/790842

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

790842

eissn

2314-6133

issn

2314-6141

journal_volume

2013

pub_type

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