Splice variants of human IL-23 receptor (IL-23R) mRNA and use of a delta 9 isoform in predicting inflammatory bowel diseases
US8206925B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2009 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Jun 13, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q2600/158
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
There is disclosed the cloning and identification of human IL-23R splice variants caused by alternative splicing of the IL-23R mRNA in human. Alternative mRNA forms occur through skipping one, multiple full exons or partial exons, within the IL-23R gene. A total of twenty-five (25) different IL-23R transcripts were identified. A novel exon deletion (exon 9) isoform in the interleukin 23 receptor is disclosed, denoted as Δ9. The present application also describes a quantitative assay to measure different IL-23R isoform. Detection of Δ9 isoform of IL-23R is predominantly present in colon and cervical tissues. A decrease in Δ9 is observed in inflamed colon tissues in Crohn's patients. There is disclosed a method of predicting Crohn's disease by measuring Δ9 isoform of IL-23R.
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