AlterMann Objavljeno Avgust 5, 2008 Opozori Objavljeno Avgust 5, 2008 virtualno hvala nazaj, nazaj v mozirski gaj
AlterMann Objavljeno Avgust 5, 2008 Opozori Objavljeno Avgust 5, 2008 saj že štiri mesce praznuje 1. maj
riderrgirl Objavljeno Avgust 5, 2008 Opozori Objavljeno Avgust 5, 2008 s sabo na zdravljenje..v obljubljeni raj
Tabo Objavljeno Avgust 5, 2008 Avtor Opozori Objavljeno Avgust 5, 2008 povabim še tebe da greva odpet
KeC Objavljeno Avgust 5, 2008 Opozori Objavljeno Avgust 5, 2008 Monocyte chemoattractant protein-1 (MCP-1) is a potent agonist for mononuclear leukocytes and has been implicated in the pathogenesis of atherosclerosis and granulomatous lung disease. To determine the role of MCP-1 and related family members in vivo, we used homologous recombination in embryonic stem cells to generate mice with a targeted disruption of C-C chemokine receptor 2 (CCR2), the receptor for MCP-1. CCR2-/- mice were born at the expected Mendelian ratios and developed normally. In response to thioglycollate, the recruitment of peritoneal macrophages decreased selectively. In in vitro chemotaxis assays, CCR2-/- leukocytes failed to migrate in response to MCP-1. Granulomatous lung disease was induced in presensitized mice by embolization with beads coupled to purified protein derivative (PPD) of Mycobacterium bovis. As compared with wild-type littermates, CCR2-/- mice had a decrease in granuloma size accompanied by a dramatic decrease in the level of interferon gamma in the draining lymph nodes. Production of interferon gamma was also decreased in PPD-sensitized splenocytes from CCR2-/- mice and in naive splenocytes activated by concanavalin A. We conclude that CCR2-/- mice have significant defects in both delayed-type hypersensitivity responses and production of Th1-type cytokines. These data suggest an important and unexpected role for CCR2 activation in modulating the immune response, as well as in recruiting monocytes/macrophages to sites of inflammation.
riderrgirl Objavljeno Avgust 5, 2008 Opozori Objavljeno Avgust 5, 2008 dokler ne podvodni mož pride pa js zginem....ampak pridejo pa ostali...
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