Methods and compositions for the diagnosis and treatment of demyelinating inflammatory disorders
First Claim
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1. A method of treating a multiple sclerosis in a patient, comprising administering to the patient in need of such treatment an ICOS-B7RP-1 inhibitor in an amount effective for treating the demyelinating inflammatory disorder, wherein the ICOS-B7RP-1 inhibitor is an anti-ICOS antibody.
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Abstract
The present invention provides methods of suppressing demyelinating inflammatory disorders in a patient by administering to the patient a compound that inhibits binding of B7RP-1 to ICOS or inhibits signaling through the B7RP-1 pathway. Various therapeutic regimens are provided. Methods of identifying such compounds are also provided. The present invention further provides kits and pharmaceutical compositions useful in the present methods.
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Citations
26 Claims
- 1. A method of treating a multiple sclerosis in a patient, comprising administering to the patient in need of such treatment an ICOS-B7RP-1 inhibitor in an amount effective for treating the demyelinating inflammatory disorder, wherein the ICOS-B7RP-1 inhibitor is an anti-ICOS antibody.
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9. A method of identifying a candidate ICOS-B7RP-1 inhibitor, comprising:
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(a) contacting an ICOS polypeptide with a B7RP-1 polypeptide expressed on an endothelial cell surface and a test compound, under conditions that, in the absence of the test compound, allow the ICOS polypeptide to bind to the B7RP-1 polypeptide and thereby form an ICOS-B7RP-1 complex; and
(b) determining whether ICOS-B7RP-1 complex formation is inhibited by the test compound;
wherein inhibition of ICOS-B7RP-1 complex formation by the test compound identifies the test compound as a candidate ICOS-B7RP-1 inhibitor. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of identifying a candidate ICOS-B7RP-1 inhibitor, comprising:
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(a) contacting a T-cell, capable of being activated by B7RP-1, with B7RP-1 present on an endothelial cell surface, in the presence of a test compound; and
(b) determining whether a lower level of ICOS-B7RP-1 activity occurs in the T-cell after said contacting relative to a control T-cell contacted with B7RP-1 in the absence of the test compound;
wherein a lower level of activity identifies the test compound as a candidate ICOS-B7RP-1 inhibitor. - View Dependent Claims (21, 22, 23)
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24. A method of identifying a candidate ICOS-B7RP-1 inhibitor, comprising:
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(a) administering to a model animal with experimental allergic encephalomyelitis a test compound during the efferent stage of said experimental allergic encephalomyelitis; and
(b) determining whether the test compound abrogates a central nervous system phenotype of experimental allergic encephalomyelitis, wherein abrogation of a central nervous system phenotype of experimental allergic encephalomyelitis identifies the test compound as a candidate ICOS-B7RP-1 inhibitor. - View Dependent Claims (25, 26)
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Specification