文章基本信息

标题：Spinal muscular atrophy: from tissue specificity to therapeutic strategies
本地全文：下载
作者：Daniel M. Iascone ; Christopher E. Henderson ; Justin C. Lee 等
期刊名称：F1000 Biology Reports
电子版ISSN：2051-7599
出版年度：2015
卷号：7
DOI：10.12703/P7-04
语种：English
出版社：Faculty of 1000 Ltd
摘要：Spinal muscular atrophy (SMA) is the most frequent genetic cause of death in infants and toddlers. All cases of spinal muscular atrophy result from reductions in levels of the survival motor neuron (SMN) protein, and so SMN upregulation is a focus of many preclinical and clinical studies. We examine four issues that may be important in planning for therapeutic success. First, neuromuscular phenotypes in the SMNΔ7 mouse model closely match those in human patients but peripheral disease manifestations differ, suggesting that endpoints other than mouse lifespan may be more useful in predicting clinical outcome. Second, SMN plays important roles in multiple central and peripheral cell types, not just motor neurons, and it remains unclear which of these cell types need to be targeted therapeutically. Third, should SMN-restoration therapy not be effective in all patients, blocking molecular changes downstream of SMN reduction may confer significant benefit, making it important to evaluate therapeutic targets other than SMN. Lastly, for patients whose disease progression is slowed, but who retain significant motor dysfunction, additional approaches used to enhance regeneration of the neuromuscular system may be of value.