Low-level visible light (LLVL) irradiation promotes proliferation of mesenchymal stem cells.

Abstract:

:Low-level visible light irradiation was found to stimulate proliferation potential of various types of cells in vitro. Stem cells in general are of significance for implantation in regenerative medicine. The aim of the present study was to investigate the effect of low-level light irradiation on the proliferation of mesenchymal stem cells (MSCs). MSCs were isolated from the bone marrow, and light irradiation was applied at energy densities of 2.4, 4.8, and 7.2 J/cm(2). Illumination of the MSCs resulted in almost twofold increase in cell number as compared to controls. Elevated reactive oxygen species and nitric oxide production was also observed in MSCs cultures following illumination with broadband visible light. The present study clearly demonstrates the ability of broadband visible light illumination to promote proliferation of MSCs in vitro. These results may have an important impact on wound healing.

journal_name

Lasers Med Sci

authors

Lipovsky A,Oron U,Gedanken A,Lubart R

doi

10.1007/s10103-012-1207-z

subject

Has Abstract

pub_date

2013-07-01 00:00:00

pages

1113-7

issue

4

eissn

0268-8921

issn

1435-604X

journal_volume

28

pub_type

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