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Abstract #25584 Published in IGR 12-1
Modulation of morphological changes of microglia and neuroprotection by monocyte chemoattractant protein-1 in experimental glaucoma
Chiu K; Yeung S -C; So K -F; Chang R C -CCellular and Molecular Immunology 2010; 7: 61-68
Monocyte chemoattractant protein-1 (MCP-1)/CCL2 is a C-C chemokine involved in the activation and recruitment of monocytic cells to injury sites. MCP-1/CCL2 can induce either neuroprotection or neurodestruction in vitro, depending on the experimental model. We aim to use MCP-1/CCL2 as an experimental tool to investigate the morphological changes of microglia when loss of healthy retinal ganglion cells (RGCs) is exacerbated or attenuated in an experimental glaucoma model. While a high concentration (1000 ng) of MCP-1/CCL2 and lipopolysaccharide (LPS)-exacerbated RGC loss, 100 ng MCP-1/CCL2 provided neuroprotection towards RGC. Neuroprotective MCP-1/CCL2 (100 ng) also upregulated insulin-like growth factor-1 (IGF-1) immunoreactivity in the RGCs. The neuroprotective effect of MCP-1/CCL2 was not due to the massive infiltration of microglia/macrophages. Taken together, this is the first report showing that an appropriate amount of MCP-1/CCL2 can protect RGCs in experimental glaucoma.
R. C.-C. Chang. Faculty of Medicine Building, University of Hong Kong, 21 Sassoon Road, Hong Kong, Hong Kong. rccchang@hku.hk
Classification:
3.5 Molecular biology incl. SiRNA (Part of: 3 Laboratory methods)
3.6 Cellular biology (Part of: 3 Laboratory methods)
11.8 Neuroprotection (Part of: 11 Medical treatment)
11.14 Investigational drugs; pharmacological experiments (Part of: 11 Medical treatment)
