RT Journal Article SR Electronic T1 Susceptibility to endotoxin induced uveitis is not reduced in mice deficient in BLT1, the high affinity leukotriene B4 receptor JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 273 OP 275 DO 10.1136/bjo.2003.027243 VO 88 IS 2 A1 J R Smith A1 K Subbarao A1 D T Franc A1 B Haribabu A1 J T Rosenbaum YR 2004 UL http://bjo.bmj.com/content/88/2/273.abstract AB Aim: To investigate the role of arachidonic acid derived chemotactic factor, LTB4, in the development of endotoxin induced uveitis (EIU), using mice deficient in the BLT1 gene which encodes the high affinity LTB4 receptor. Methods: BLT1 gene deficient and wild type BALB/c mice were injected intravitreally with Escherichia coli 055:B5 lipopolysaccharide (250 ng/2 μl). Number of leukocytes invading the anterior chamber 24 hours later were counted on tissue cross sections. Results: In all mice, EIU was characterised by a polymorphonuclear and mononuclear cell infiltrate. Numbers of infiltrating cells did not differ significantly between control and BLT1 gene knockout mice. Conclusion: Chemotactic factors other than LTB4 are primarily responsible for leukocyte migration into the eye during murine EIU.