Methods relating to DENND1A Variant 2 and polycystic ovary syndrome
View Patent ↗Provided are compositions and methods for use in polycystic ovary syndrome diagnosis (PCOS). The method involves a sample from a subject for a DENND1A Variant 2 mRNA or DENND1 A Variant 2 protein to make or aid in a diagnosis of PCOS. Also provided are methods for selecting an individual as a candidate for therapy for polycystic ovary syndrome by testing a biological sample from an individual for DENND1 A Variant 2 mRNA or DENND1 A Variant 2 protein and designating the individual as a candidate for the PCOS based on determining DENND1 A Variant 2 mRNA or DENND1 A Variant 2 protein in the sample. Also provided are products for use in aiding diagnosis of PCOS which contain reagents for detecting DENND1 A Variant 2 mRNA or DENND1 A Variant 2 protein, and packaging containing printed material describing use and indications for the product.
1. A method for polycystic ovary syndrome diagnosis, the method comprising the steps of:
measuring an amount of DENND1A Variant 2 mRNA in a urine sample from a subject,
wherein the amount of DENND1A Variant 2 mRNA is measured by hybridizing a labeled probe to the DENND1A Variant 2 mRNA or to DNA amplified from the DENND1A Variant 2 mRNA , and detecting the labeled probe hybridized to the DENND1A Variant 2 mRNA or detecting the labeled probe hybridized to amplified DNA,
wherein said labeled probe hybridizes to a DENND1A Variant 2 mRNA or DNA sequence that is absent from DENND1A Variant 1 mRNA or DNA sequence; or
wherein the amount of DENND1A Variant 2 mRNA is measured by detecting a signal from a fluorescently labeled nucleotide released from a probe hybridized to amplified DNA, wherein the fluorescently labeled nucleotide is released by exonuclease activity on the probe during amplification of the DENND1A Variant 2 mRNA into double stranded DNA,
wherein said probe hybridizes to a DENND1A Variant 2 mRNA or DNA sequence that is absent from DENND1A Variant 1 mRNA or DNA sequence;
comparing the amount of DENND1A Variant 2 mRNA to a reference value; and
diagnosing said subject with polycystic ovary syndrome when said amount of DENND1A Variant 2 mRNA is increased as compared to the reference value.
2. The method of claim 1 , wherein the measuring of the DENND1A Variant 2 mRNA comprises using a polymerase chain reaction to amplify the DENND1A Variant 2 mRNA into double stranded DNA.
3. The method of claim 1 , wherein the urine sample from the subject comprises exosomes, wherein the exosomes comprise the DENND1A Variant 2 mRNA.
4. A method for selecting an individual as a candidate for therapy for polycystic ovary syndrome, the method comprising the steps of:
measuring an amount of DENND1A Variant 2 mRNA in a urine sample from said individual,
wherein the amount of DENND1A Variant 2 mRNA is measured by hybridizing a labeled probe to the DENND1A Variant 2 mRNA or to DNA amplified from the DENND1A Variant 2 mRNA, and detecting the labeled probe hybridized to the DENND1A Variant 2 mRNA or detecting the labeled probe hybridized to amplified DNA,
wherein said labeled probe hybridizes to a DENND1A Variant 2 mRNA or DNA sequence that is absent from DENND1A Variant 1 mRNA or DNA sequence; or
wherein the amount of DENND1A Variant 2 mRNA is measured by detecting a signal from a fluorescently labeled nucleotide released from a probe hybridized to amplified DNA, wherein the fluorescently labeled nucleotide is released by exonuclease activity on the probe during amplification of the DENND1A Variant 2 mRNA into double stranded DNA,
wherein said probe hybridizes to a DENND1A Variant 2 mRNA or DNA sequence that is absent from DENND1A Variant 1 mRNA or DNA sequence;
comparing the amount of DENND1A Variant 2 mRNA to a reference value, and
diagnosing said individual with polycystic ovary syndrome when said amount of DENND1A Variant 2 mRNA is increased as compared to the reference value, and
designating the individual diagnosed with polycystic ovary syndrome as a candidate for the polycystic ovary syndrome therapy.
5. The method of claim 1 , wherein said DENND1A Variant 2 mRNA or DNA sequence encodes at least 15 contiguous amino acids of SEQ ID NO: 10.
6. The method of claim 5 , wherein said DENND1A Variant 2 mRNA sequence encodes at least SEQ ID NO: 10.
7. The method of claim 6 , wherein said DENND1A Variant 2 mRNA sequence encodes at least SEQ ID NO: 11.
8. The method of claim 4 , wherein said DENND1A Variant 2 mRNA or DNA sequence encodes at least 15 contiguous amino acids of SEQ ID NO: 10.
9. The method of claim 8 , wherein said DENND1A Variant 2 mRNA sequence encodes at least SEQ ID NO: 10.
10. The method of claim 9 , wherein said DENND1A Variant 2 mRNA sequence encodes at least SEQ ID NO: 11.
11. A method of detecting DENND1A Variant 2 mRNA in a urine sample, the method comprising the steps of:
detecting whether DENND1A Variant 2 mRNA is present in a urine sample by contacting said urine sample with a probe that hybridizes to a DENND1A Variant 2 mRNA sequence and detecting binding between the probe and the DENND1A Variant 2 mRNA sequence, wherein the DENND1A Variant 2 mRNA sequence is absent in a DENND1A Variant 1 mRNA.
12. The method of claim 11 , wherein said DENND1A Variant 2 mRNA sequence encodes at least fifteen contiguous amino acids of SEQ ID NO: 10.
13. The method of claim 12 , wherein said DENND1A Variant 2 mRNA sequence encodes at least SEQ ID NO: 10.
14. The method of claim 13 , wherein said DENND1A Variant 2 mRNA sequence encodes at least SEQ ID NO: 11.