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Alternative splicing of interleukin-7 (IL-7) and interleukin-7 receptor alpha (IL-7Ralpha) in peripheral blood from
Lalit Rane1, Nalini Vudattu, Kasia Bourcier
1Department of Microbiology, Tumor and Cell Biology (MTC), Nobels Väg 18, Karolinska Institutet, SE-17182 Stockholm, Sweden.
IL-7 and IL-7Ralpha (IL-7R) form a non-redundant ligand receptor system which plays a crucial role in human T cell immunity. Both IL-7 and IL-7R are multi-exonal genes and exhibit alternative splicing. We measured the relative distribution of IL-7 and IL-7R spliced mRNA from patients with MS and healthy individuals and observed extensive alternative splicing of both genes with marked differences in proportional transcript expression levels. We report here for the first time that the IL-7 transcript, lacking exon 4, and not the full length IL-7 represents the dominant IL-7 RNA transcript in human PBMCs and a novel IL-7R splice variant lacking exons 5, 6 and 7.
IL-7 and IL-7Ralpha (IL-7R) form a non-redundant ligand receptor system which plays a crucial role in human T cell immunity. Both IL-7 and IL-7R are multi-exonal genes and exhibit alternative splicing. We measured the relative distribution of IL-7 and IL-7R spliced mRNA from patients with MS and healthy individuals and observed extensive alternative splicing of both genes with marked differences in proportional transcript expression levels. We report here for the first time that the IL-7 transcript, lacking exon 4, and not the full length IL-7 represents the dominant IL-7 RNA transcript in human PBMCs and a novel IL-7R splice variant lacking exons 5, 6 and 7.
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