[No authors listed]
lncrps25 is an intergenic long noncoding RNA (lncRNA), which is location close to rps25 (ribosomal protein S25) gene, is reported share high conserved sequence with NREP (neuronal regeneration-related protein) 3'-untranslated region. The function and mechanism of most of the lncRNA in embryo development remain largely unknown. In zebrafish, lncrps25 is widely expressed in the early embryonic stage and spinal cord during development. Morpholino (MO) knockdown of zebrafish lncrps25 exhibit locomotor behavior defects, caused by abnormal development of motor neurons. In addition, the defect of swimming ability and motor neurons could be recovery by microinject with lncrps25 RNA in lncrps25 morphants. By performing RNA sequencing and quantitative real-time polymerase chain reaction, we found that olig2 (oligodendrocyte transcription factor 2) messenger RNA (mRNA) was downregulated in lncrps25 morphants. Moreover, overexpression of olig2 mRNA in lncrps25 morphants partially rescued motor neurons development. Taken together, these results indicate that lncrps25 plays an essential role in the development of motor neurons in zebrafish.
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