BACKGROUND: Mucosal CXC chemokines recruit inflammatory cells to the infected urinary tract. The chemokine response repertoire of the urinary tract and the relationship to disease severity have not been examined, however. METHODS: This study quantified CXC (CXCL1, CXCL3, CXCL5, CXCL8, CXCL9, and CXCL10) and CC (CCL2, CCL4, and CCL5) chemokines in sequential urine samples obtained from 50 patients with febrile urinary tract infections during 24 hours after diagnosis. RESULTS: All patients had elevated chemokine levels, but bacteremic infections caused higher CXCL1, CXCL3, CXCL5, CXCL8, and CCL2 responses. CCL2 and CXCL8 levels were higher in patients with acute pyelonephritis symptoms and CCL2, CXCL3, CCL4, CXCL5, and CXCL10 were significantly correlated to C-reactive protein (CRP) and temperature. Women and men showed different chemokine responses. CONCLUSION: Febrile urinary tract infections are accompanied by a complex chemokine response. The response magnitude reflects disease severity, and the repertoire is influenced by gender and underlying disease.
BACKGROUND: Mucosal CXC chemokines recruit inflammatory cells to the infected urinary tract. The chemokine response repertoire of the urinary tract and the relationship to disease severity have not been examined, however. METHODS: This study quantified CXC (CXCL1, CXCL3, CXCL5, CXCL8, CXCL9, and CXCL10) and CC (CCL2, CCL4, and CCL5) chemokines in sequential urine samples obtained from 50 patients with febrile urinary tract infections during 24 hours after diagnosis. RESULTS: All patients had elevated chemokine levels, but bacteremic infections caused higher CXCL1, CXCL3, CXCL5, CXCL8, and CCL2 responses. CCL2 and CXCL8 levels were higher in patients with acute pyelonephritis symptoms and CCL2, CXCL3, CCL4, CXCL5, and CXCL10 were significantly correlated to C-reactive protein (CRP) and temperature. Women and men showed different chemokine responses. CONCLUSION:Febrile urinary tract infections are accompanied by a complex chemokine response. The response magnitude reflects disease severity, and the repertoire is influenced by gender and underlying disease.
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