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Exp Cell Res. 2004 Apr 15;295(1):119-27.

Lectins induce resistance to proteases and/or mechanical stimulus in all examined cells--including bone marrow mesenchymal stem cells--on various scaffolds.

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Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima 734-8553, Japan.


Transplantation of bone marrow mesenchymal stem cells (MSC), chondrocytes, osteoblasts, or muscle cells promotes regeneration. However, these cells adhere poorly to some scaffolds--depending upon the scaffold material--and are often damaged by proteases or mechanical stimuli at site of transplantation. We found, however, that MSC, chondrocytes, and osteoblasts--along with some other cells--that were exposed to phaseolus vulgaris erythroagglutinin (PHA-E) or concanavalin A (ConA) increased their adhesion capacity on plastic tissue culture dishes and on plates of hydroxyapatite, titanium and poly-DL-lactic-co-glycolic acid (PLGA), and that these cells, moreover, built up resistance to proteases and/or mechanical stimuli. Thus, lectins may have great potential in tissue engineering and cell therapy.

[Indexed for MEDLINE]

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