Computer system and methods for constructing biological classifiers and uses thereof
First Claim
1. A method for profiling gene expression in a human test subject, the method comprising:
- a) measuring a level of expression in a blood sample of said test subject of each gene of a set of genes consisting of heat shock protein 90 kDa alpha (cytosolic), class A member 1 (HSP90AA1);
inhibitor of kappa light polypeptide gene enhancer in B-cells, kinase complex-associated protein (IKBKAP);
interleukin 13 receptor, alpha 1 (IL13RA1);
laminin, gamma 1 (LAMC1);
v-maf musculoaponeurotic fibrosarcoma oncogene homolog B (MAFB); and
platelet factor 4 (PF4), thereby obtaining a sample dataset; and
b) applying a classifier to said sample dataset to thereby classify said test subject into a class representing human subjects having mild osteoarthritis or a class representing human subjects not having osteoarthritis, wherein said classifier is able to discriminate between human subjects having mild osteoarthritis and human subjects not having osteoarthritis, and wherein said classifier is derived from data representing a level of expression of each gene of said set of genes in blood samples of human subjects having mild osteoarthritis and in blood samples of human subjects not having osteoarthritis,thereby profiling gene expression in a human test subject.
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Abstract
The present invention provides systems and method for constructing classifiers that distinguish between trait subgroups using molecular marker data from blood samples. The invention further encompasses the use of the classifiers and combinations of molecular markers identified by the classifiers in a wide variety of applications including: diagnosis; prognosis; prediction of disease, stage of disease or disease risk; monitoring disease progression and/or regression; monitoring disease reoccurrence and identifying risk of disease reoccurrence; determining and/or predicting response to treatment and/or treatment outcomes; monitoring and/or predicting treatment compliance or non compliance and the like. The invention further provides a variety of selected molecular markers and a means to identify combinations of the selected molecular markers useful for diagnosing particular traits of interest.
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Citations
18 Claims
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1. A method for profiling gene expression in a human test subject, the method comprising:
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a) measuring a level of expression in a blood sample of said test subject of each gene of a set of genes consisting of heat shock protein 90 kDa alpha (cytosolic), class A member 1 (HSP90AA1);
inhibitor of kappa light polypeptide gene enhancer in B-cells, kinase complex-associated protein (IKBKAP);
interleukin 13 receptor, alpha 1 (IL13RA1);
laminin, gamma 1 (LAMC1);
v-maf musculoaponeurotic fibrosarcoma oncogene homolog B (MAFB); and
platelet factor 4 (PF4), thereby obtaining a sample dataset; andb) applying a classifier to said sample dataset to thereby classify said test subject into a class representing human subjects having mild osteoarthritis or a class representing human subjects not having osteoarthritis, wherein said classifier is able to discriminate between human subjects having mild osteoarthritis and human subjects not having osteoarthritis, and wherein said classifier is derived from data representing a level of expression of each gene of said set of genes in blood samples of human subjects having mild osteoarthritis and in blood samples of human subjects not having osteoarthritis, thereby profiling gene expression in a human test subject. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for profiling gene expression in a human test subject, the method comprising:
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a) obtaining a sample dataset representing a level of expression in a blood sample of said test subject of each gene of a set of genes consisting of heat shock protein 90 kDa alpha (cytosolic), class A member 1 (HSP90AA1);
inhibitor of kappa light polypeptide gene enhancer in B-cells, kinase complex-associated protein (IKBKAP);
interleukin 13 receptor, alpha 1 (IL13RA1);
laminin, gamma 1 (LAMC1);
v-maf musculoaponeurotic fibrosarcoma oncogene homolog B (MAFB); and
platelet factor 4 (PF4); andb) using a computer, applying a classifier to said sample dataset to thereby classify said test subject into a class representing human subjects having mild osteoarthritis or a class representing human subjects not having osteoarthritis, wherein said classifier is able to discriminate between human subjects having mild osteoarthritis and human subjects not having osteoarthritis, wherein said classifier is derived from data representing a level of expression of each marker of said marker set in blood samples of human subjects having mild osteoarthritis and in blood samples of human subjects not having osteoarthritis, and wherein said computer is programmed to apply said classifier to a dataset representing a level of expression of each gene of said set of genes in a blood sample of a human individual to thereby classify said test individual into said class representing human subjects having mild osteoarthritis or said class representing human subjects not having osteoarthritis, thereby profiling gene expression in a human test subject. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for profiling gene expression in a human test subject, the method comprising:
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using a computer, applying a classifier to a sample dataset representing a level of expression in a blood sample of said test subject of each gene of a set of genes consisting of heat shock protein 90 kDa alpha (cytosolic), class A member 1 (HSP90AA1);
inhibitor of kappa light polypeptide gene enhancer in B-cells, kinase complex-associated protein (IKBKAP);
interleukin 13 receptor, alpha 1 (IL13RA1);
laminin, gamma 1 (LAMC1);
v-maf musculoaponeurotic fibrosarcoma oncogene homolog B (MAFB); and
platelet factor 4 (PF4), to thereby classify said test subject into a class representing human subjects having mild osteoarthritis or a class representing human subjects not having osteoarthritis,wherein said classifier is able to discriminate between human subjects having mild osteoarthritis and human subjects not having osteoarthritis, wherein said classifier is derived from data representing a level of expression of each marker of said marker set in blood samples of human subjects having mild osteoarthritis and in blood samples of human subjects not having osteoarthritis, and wherein said computer is programmed to apply said classifier to a dataset representing a level of expression of each gene of said set of genes in a blood sample of a human individual to thereby classify said human individual into said class representing human subjects having osteoarthritis or said class representing human subjects not having osteoarthritis, thereby profiling gene expression in a human test subject. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification