Abstract
Spinal muscular atrophy (SMA) is a lethal childhood neurodegenerative disorder that is caused by the homozygous deletion of survival motor neuron 1 (SMN1). To date, no effective treatments are available. In the current study, urine cells taken from SMA patients were cultured and the application of patient-derived urine cells was determined in drug intervention. A total of 13 SMA patient-derived urine cell lines and 40 control cell lines were established. SMN was highly expressed in the nucleus and cytoplasm. Patient-derived urine cells expressed low levels of SMN protein compared with controls, they exhibited good tolerance to chemical and electrical damage. SMN expression was upregulated following treatment with histone deacetylase inhibitors and the effect was greater in groups treated with morpholino modified antisense oligo, which targets ISS-N1 in SMN2 intron 7. The results of the current study indicated that SMA patient-derived urine cells may be useful in the initial screening of potential compounds and drugs to treat SMA.
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