Abstract:
The invention relates to compositions and methods for the assessment of mucin gene expression. The invention also relates to compositions and methods for the identification of compounds useful in the treatment of various disorders caused by mucin overproduction. The invention provides novel MUC5B promoter sequences and reporter constructs comprising these MUC5B promoter sequences. The invention further provides methods for drug screening to identify compounds have the ability to inhibit MUC5B gene expression. Compounds having the ability to inhibit MUC5B gene expression find use in the treatment of diseases characterized by mucin hyperproduction.
Abstract:
The invention relates to a method of detecting a differentially expressed gene in a first sample of nucleic acids representing a first population of RNA transcripts and a second sample of nucleic acids representing a second population of RNA transcripts. The nucleic acids in the samples are labled with a member of specific binding pair, and the labeled nucleic acids in each sample are then hybridized to an excess of copies of a gene-specific sequence. The hybridized nucleic acids in each sample are further labeled by binding a second member of the specific binding pair to the first member, in which the second member has an activity to convert a chromogenic substrate into a chromogen. As a result of contacting the second member with the chromogenic substrate, the chromogenic substrate is converted into the chromogen. A difference in the amounts of chromogen produced from assaying the two samples indicate that the gene-specific sequence is differentially expressed in the samples.