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Updated: Sep 26, 2026

Quantitative Analysis of Alternative Pre-mRNA Splicing in Mouse Brain Sections Using RNA In Situ Hybridization Assay
Published on: August 26, 2018
Alternative splicing of cyclooxygenase-1 mRNA in the human iris
Melloney J Dröge1, Adriaan A van Sorge, Nicolaas J van Haeringen
1Department of Pharmaceutical Biology, University Centre for Pharmacy, Groningen, The Netherlands. m.j.droge@farm.rug.nl
Abstract:
In homogenates of the human iris, the nonsteroidal anti-inflammatory drug (NSAID) S(+)flurbiprofen has been reported to inhibit cyclooxygenase-1 (COX-1) 70-fold more potently than in human whole blood. We hypothesized that this difference may be due to alternative splicing of COX-1 mRNA in the human iris or in whole blood. In this study, we have identified a similar COX-1 splice variant (COX-1SV) in both tissues with comparable COX-1/COX-1SV expression ratios. Therefore, we conclude that the difference in IC(50) values of S(+)flurbiprofen towards COX-1 in the human iris and human whole blood is not related to differences in the occurrence of spliced COX-1.
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