000			02981na a2200229 4500
003			H12O
005			20210625062810.0
008			130622s2011 xxx||||| |||| 00| 0 eng d
040			_cH12O
041			_aeng
100			_aGarcía Bueno, Borja _91897 _eInstituto de Investigación i+12
245	0	0	_aCCL2/MCP-1 modulation of microglial activation and proliferation _h[artículo]
260			_bJournal of Neuroinflammation, _c2011
300			_a8:77.
500			_aFormato Vancouver: Hinojosa AE, García Bueno B, Leza JC, Madrigal JL. CCL2/MCP-1 modulation of microglial activation and proliferation. J Neuroinflammation. 2011;8:77.
501			_aPMID: 21729288
504			_aContiene 51 referencias
520			_aMonocyte chemoattractant protein (CCL2/MCP-1) is a chemokine that attracts cells involved in the immune/inflammatory response. As microglia are one of the main cell types sustaining inflammation in brain, we proposed here to analyze the direct effects of MCP-1 on cultured primary microglia. METHODS: Primary microglia and neuronal cultures were obtained from neonatal and embryonic Wistar rats, respectively. Microglia were incubated with different concentrations of recombinant MCP-1 and LPS. Cell proliferation was quantified by measuring incorporation of bromodeoxyuridine (BrdU). Nitrite accumulation was measured using the Griess assay. The expression and synthesis of different proteins was measured by RT-PCR and ELISA. Cell death was quantified by measuring release of LDH into the culture medium. RESULTS: MCP-1 treatment (50 ng/ml, 24 h) did not induce morphological changes in microglial cultures. Protein and mRNA levels of different cytokines were measured, showing that MCP-1 was not able to induce proinflammatory cytokines (IL-1β, IL6, MIP-1α), either by itself or in combination with LPS. A similar lack of effect was observed when measuring inducible nitric oxide synthase (NOS2) expression or accumulation of nitrites in the culture media as a different indicator of microglial activation. MCP-1 was also unable to alter the expression of different trophic factors that were reduced by LPS treatment. In order to explore the possible release of other products by microglia and their potential neurotoxicity, neurons were co-cultured with microglia: no death of neurons could be detected when treated with MCP-1. However, the presence of MCP-1 induced proliferation of microglia, an effect opposite to that observed with LPS. CONCLUSION: These data indicate that, while causing migration and proliferation of microglia, MCP-1 does not appear to directly activate an inflammatory response in this cell type, and therefore, other factors may be necessary to cause the changes that result in the neuronal damage commonly observed in situations where MCP-1 levels are elevated.
710			_9625 _aInstituto de Investigación imas12
856			_uhttp://pc-h12o-es.m-hdoct.a17.csinet.es/pdf/pc/9/pc9491.pdf _ySolicitar documento
942			_n0 _2ddc _cART
999			_c9491 _d9491