Detection and diagnosis of inflammatory disorders
First Claim
1. A method for determining the severity of an inflammatory disorder in a subject having or suspected of having an inflammatory disorder comprising(a) determining the level of soluble B7-H4 in a biological sample from a subject;
- and(b) comparing the level of soluble B7-H4 in the biological sample to reference levels of soluble B7-H4 that correlate with disease severity of an inflammatory disorder to determine the severity of the inflammatory disorder of the subject.
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Accused Products
Abstract
Soluble H4 (sH4) levels have been discovered to correlate with the stage or severity of inflammatory disorders including autoimmune disorders. In particular, circulating levels of sH4 can be used as a diagnostic for determining the severity of an inflammatory disorder or the propensity for developing an inflammatory disorder. The severity of an inflammatory disorder can be determined by assaying the levels of sH4 in a subject and comparing the levels of sH4 to reference sH4 concentrations that correlate to specific stages of an inflammatory disorder. The therapeutic efficacy of treatments for inflammatory disorders can also be determined by comparing levels of sH4 before and during treatment. Methods and devices for measuring sH4 are also provided.
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Citations
36 Claims
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1. A method for determining the severity of an inflammatory disorder in a subject having or suspected of having an inflammatory disorder comprising
(a) determining the level of soluble B7-H4 in a biological sample from a subject; - and
(b) comparing the level of soluble B7-H4 in the biological sample to reference levels of soluble B7-H4 that correlate with disease severity of an inflammatory disorder to determine the severity of the inflammatory disorder of the subject. - View Dependent Claims (2, 3, 4, 5, 19, 20)
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6. A method for assisting in the diagnosis of an inflammatory disorder or assessing the propensity for developing an inflammatory disorder in a subject comprising
determining the level of soluble B7-H4 in a biological sample from a subject, wherein an elevated level of soluble B7-H4 in the biological sample relative to the level of soluble B7-H4 in a control is indicative of an inflammatory disorder or an increased propensity for developing an inflammatory disorder.
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9. A method for determining the efficacy of a treatment for an inflammatory disorder in a subject comprising
determining the level of soluble B7-H4 from one or more biological samples obtained from the subject before or during the course of the treatment, wherein a decrease in the level of soluble B7-H4 in samples obtained from the subject over time is indicative that the treatment is efficacious.
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12. A method for determining neutrophil levels of a subject comprising
(a) determining the level of soluble B7-H4 in a biological sample obtained from the subject; -
(b) comparing the level of soluble B7-H4 in the biological sample to reference levels of soluble B7-H4 wherein the reference levels correlate with levels of neutrophils; and (c) selecting the level of neutrophils that matches the level of soluble B7-H4 in the biological sample. - View Dependent Claims (13, 25, 26)
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14. A method for selecting a subject for treatment of an inflammatory disorder comprising
(a) determining the level of soluble B7-H4 in a biological sample obtained from the subject; -
(b) comparing the level of soluble B7-H4 in the biological sample to the level of soluble B7-H4 in a control; and (c) selecting the subject for treatment when the level of soluble B7-H4 in the biological sample is higher than the level of soluble B7-H4 in the control. - View Dependent Claims (15, 16, 17, 18, 27, 28, 29)
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30. A method for determining the efficacy of a treatment for an inflammatory disorder in a subject comprising
determining the levels of soluble B7-H4 in a first biological sample and a second biological sample taken after the first sample, wherein the samples are obtained from the subject over the course of the treatment, and wherein a decrease in the level of soluble B7-H4 in the second sample compared to the first sample is indicative that the treatment is efficacious.
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34. A method for assisting in the diagnosis of an inflammatory disorder or assessing the propensity for developing an inflammatory disorder in a subject comprising determining the levels of soluble B7-H4 in a first biological sample and a second biological sample taken after the first sample, wherein an increase in the level of soluble B7-H4 in the second sample compared to the first sample is indicative of development or worsening of an autoimmune disease.
- 35. A method for selecting a subject for treatment of an inflammatory disorder comprising determining the levels of soluble B7-H4 in a first biological sample and a second biological sample taken after the first sample, and selecting the subject for treatment when the level of soluble B7-H4 in the second biological sample is higher than the level of soluble B7-H4 in the first sample.
Specification