Seikagaku Corporation

Panorama Research Inc.

Michimasa Hirata

James W Larrick

Susan C Wright

Compositions and methods for the treatment and diagnosis of lipopolysaccharide-related conditions and coagulant-related disease are provided. Compositions include polypeptides which are identical or homologous to a certain cationic protein (CAP18) obtained from mammalian granulocytes, particularly including a reactive nitrogen inhibiting peptide (RNIP) fragment found at the carboxy-terminus of CAP18. Polypeptides are capable of binding to LPS and inhibiting LPS-mediated activation of macrophage, as well as interfering with the clotting cascade to inhibit coagulation in conditions such as disseminated intravascular coagulation. Compositions comprising the polypeptides in a suitable pharmaceutical carrier are also provided.

Mammalian cationic proteins having lipopolysaccharide binding and

A peptide comprising at least the following amino acid sequence:

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Morioka, Japan

Michimasa Hirata