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. 2021 May;171(1):45-48.
doi: 10.1007/s10517-021-05169-5. Epub 2021 May 29.

Effect of M2 Macrophage-Derived Soluble Factors on Proliferation and Apoptosis of SH-SY5Y Cells

I M Rashchupkin  1 , A A Maksimova  2 , L V Sakhno  2 , A A Ostanin  2 , E Ya Shevela  2 , E R Chernykh  2
Affiliations

Effect of M2 Macrophage-Derived Soluble Factors on Proliferation and Apoptosis of SH-SY5Y Cells

I M Rashchupkin et al. Bull Exp Biol Med. 2021 May.

Abstract

Macrophages play the key role in the regulation of neuroregeneration. For evaluation of the neuroregenerative potential of M2 macrophages, we studied the effect of macrophages polarized with IL-4 (M2a (IL-4)) and by efferocytosis under conditions of serum deprivation (LS, Low Serum; M2(LS)) on proliferative activity and apoptosis of SH-SY5Y cells under conditions of deficiency of growth/serum factors. Conditioned media of both M2(LS) and M2a(IL-4) stimulated proliferation of SH-SY5Y cells. Moreover, soluble factors of M2(LS) and M2a(IL-4) reduced the degree of early apoptosis of SH-SY5Y cells and the protective effect of M2(LS) was observed at earlier terms of culturing. Our findings suggest that M2 macrophages have high neuroregenerative potential that is mediated through soluble factors and manifests itself both in stimulation of proliferation and inhibition of apoptosis of SH-SY5Y cells.

Keywords: apoptosis; human macrophages; neural stem cells; proliferation.

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