Biomarkers for TSLP treatment

1. A method of treating a mammalian subject with asthma or atopic dermatitis with an anti-thymic stromal lymphopoietin (TSLP) antibody comprising: measuring expression of biomarkers in a sample from said subject, wherein the biomarkers comprise Lipocalin 2(LCN2), Peptidoglycan Recognition Protein 1(PGLYRP1) and RNASE3; Regenerating Islet-derived 3 gamma (REG3G), CD44, and RNASE7; RNASE2, Acidic Mammalian Chitinase(AMCASE), and Chitinase Acidic Pseudogene 2(CHIAP2); or PGLYRP1, REG3G, and AMCASE, and, if the biomarker levels in the sample are higher than a control, administering a therapeutically effective amount of an anti-TSLP antibody to the subject.

2. A method for treating a subject with asthma or atopic dermatitis with an anti-TSLP antibody comprising:

a) obtaining a first biological sample from the subject prior to administering a dose of an anti-TSLP antibody;

b) measuring the expression of biomarkers in the first biological sample, wherein the biomarkers comprise LCN2, PGLYRP1 and RNASE3; REG3G, CD44, and RNASE7; RNASE2, AMCASE, and CHIAP2; or PGLYRP1, REG3G, and AMCASE,

c) administering the anti-TSLP antibody to the subject;

d) obtaining from the subject a second biological sample;

e) measuring the expression of the biomarkers in the second sample;

f) comparing the expression of the biomarkers in the second biological sample with the expression of the biomarkers in the first biological sample, and, if the biomarker levels are reduced in the second biological sample as compared to the first biological sample, administering a therapeutically effective amount of an anti-TSLP antibody to the subject.

3. A method for selecting a subject with asthma or atopic dermatitis for treatment with an anti-TSLP antibody comprising measuring expression of biomarkers in a sample from said subject, wherein the biomarkers comprise LCN2, PGLYRP1 and RNASE3; REG3G, CD44, and RNASE7; RNASE2, AMCASE, and CHIAP2; or PGLYRP1, REG3G, and AMCASE, and, if the biomarker levels in the sample are higher than the levels of a control, then administering a therapeutically effective amount of an anti-TSLP antibody to the subject.

4. A method for monitoring progress of treatment of a subject with asthma or atopic dermatitis with an anti-TSLP antibody comprising: a) measuring expression of biomarkers in a sample from said subject, wherein the biomarkers comprise LCN2, PGLYRP1 and RNASE3; REG3G, CD44, and RNASE7; RNASE2, AMCASE, and CHIAP2; or PGLYRP1, REG3G, and AMCASE, and, if the biomarker levels in the sample are higher than the levels of a control, then administering a therapeutically effective amount of an anti-TSLP antibody to the subject.

5. The method of any one of claims 1 - 4 , wherein the sample is a tissue sample, a skin biopsy, a blood sample, serum, or sputum.

6. The method of any one of claims 1 - 4 , wherein expression of the biomarkers are determined by gene expression analysis or immunoassay.

7. The method of any one of claims 1 and 3 - 4 , wherein the control is a sample from the subject prior to treatment with an anti-TSLP antibody.

8. The method of any one of claims 1 and 3 - 4 , wherein the control is one or more samples from subjects that do not suffer from asthma or atopic dermatitis.

9. The method of any one of claims 1 and 3 - 4 , wherein the control is one or more samples from subjects that do not suffer from asthma or atopic dermatitis and have not been treated with an anti-TSLP antibody.