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Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nat+Immunol 2015 ; 16 (4): 415-25 Nephropedia Template TP
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The RNA-binding protein HuR (Elavl1) is essential for the B cell antibody response #MMPMID25706746
Nat Immunol 2015[Apr]; 16 (4): 415-25 PMID25706746show ga
Post-transcriptional regulation of mRNA by the RNA binding protein HuR (Elavl1) is required in B cells for the germinal centre reaction and for the production of class-switched antibodies in response to T-independent antigens. Transcriptome-wide examination of RNA isoforms, abundance and translation in HuR-deficient B cells, together with direct measurements of HuR-RNA interaction, revealed that HuR-dependent mRNA splicing affects hundreds of transcripts including the dihydrolipoamide S-succinyltransferase (Dlst), a subunit of the 2-oxoglutarate dehydrogenase complex (?KGDH). In the absence of HuR, defective mitochondrial metabolism results in high amounts of reactive oxygen species and B cell death. Our study shows how post-transcriptional processes control the balance of energy metabolism required for B cell proliferation and differentiation.