title: Detecting changes in the relative expression of KRAS2 splice variants using polymerase colonies.
abstract: Because splice variants of a gene with multiple isoforms give rise to proteins with different functions, it seems plausible that changes in the expression levels of the splice variants could be a contributing factor to disease. In fact, recent examples in the literature clearly illustrate that altered expression levels of splice variants may play an important role in disease. Furthermore, these works demonstrate that changes in expression levels could potentially be used to (1) monitor disease progression, (2) diagnose disease, and/or (3) determine disease state. In this work an immobilized form of PCR, known as polony technology, was adapted to quantify the relative expression levels of splice variants. Specifically, the relative expression levels of the two splice variants of the oncogene K-ras, namely, K-RAS2A and K-RAS2B, were determined using polony technology.
authors.affiliation: Chemical Engineering, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: James A
authors.initials: JA
authors.lastname: Butz
authors.forename: Kim G
authors.initials: KG
authors.lastname: Roberts
authors.forename: Jeremy S
authors.initials: JS
authors.lastname: Edwards
mesh_terms: D014408:Biomarkers, Tumor / Q000235:genetics; D045744:Cell Line, Tumor; D015179:Colorectal Neoplasms / Q000235:genetics / Q000378:metabolism*; D004252:DNA Mutational Analysis / Q000379:methods; D004274:DNA, Recombinant / Q000235:genetics*; D020869:Gene Expression Profiling / Q000379:methods*; D015972:Gene Expression Regulation, Neoplastic / Q000235:genetics; D005819:Genetic Markers / Q000235:genetics; D005820:Genetic Testing / Q000379:methods; D014644:Genetic Variation; D006801:Humans; D008297:Male; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods*; D010190:Pancreatic Neoplasms / Q000235:genetics / Q000378:metabolism*; D016133:Polymerase Chain Reaction / Q000379:methods*; D011518:Proto-Oncogene Proteins / Q000032:analysis / Q000235:genetics*; D016283:Proto-Oncogene Proteins p21(ras); D018631:ras Proteins
chemical_list: D014408:Biomarkers, Tumor; D004274:DNA, Recombinant; D005819:Genetic Markers; C117307:KRAS protein, human; D011518:Proto-Oncogene Proteins; D016283:Proto-Oncogene Proteins p21(ras); D018631:ras Proteins