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Techniques and Methods

The construction of urine-derived cell lines from patients with spinal muscular atrophy

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  • Department of Neurology, First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China

Received date: 2014-07-01

  Online published: 2014-10-28

Abstract

Spinal muscular atrophy (SMA) is a common neurodegenerative disease in childhood and infancy, clinically characterized by progressive and symmetric muscular weakness and atrophy. Few effective therapies are available now, and SMA is one of the most common genetic causes of infantile mortality. SMA patient-derived cells are beneficial in basic research on this disease, but the most common model cell, fibroblasts can only be obtained through invasive procedures such as muscle or skin biopsy, which are unwelcome to patients and their families. In this study, fresh urine from SMA patients and healthy controls was collected and centrifuged, and the urine sediment was cultured in vitro. The growth characteristics of urine-derived cells were observed, and the survival of motor neuron (SMN) gene, and the amount and localization of SMN protein in different urine cell lines were investigated. In total, 25 urine cell lines from 11 SMA patients and 14 healthy controls were established. These urine-derived cells expand robustly in vitro with stable cell morphological characteristics. The urine cell lines derived from patients carry the SMN1 gene defect and express a low level of SMN protein, while the intracellular localization of SMN protein is normal. Urine-derived cell culture technology is simple, non-invasive and highly reproducible, a way of obtaining and storing rare cell samples from SMA patients with which to study the pathogenesis of SMA.

Cite this article

Wanjin Chen, Qijie Zhang, Jin He, Xiang Lin, Ning Wang . The construction of urine-derived cell lines from patients with spinal muscular atrophy[J]. Hereditas(Beijing), 2014 , 36(11) : 1168 -1172 . DOI: 10.3724/SP.J.1005.2014.1168

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