SMN2 splicing modifiers improve motor function and longevity in mice with spinal muscular atrophy

Author:

Naryshkin Nikolai A.1,Weetall Marla1,Dakka Amal1,Narasimhan Jana1,Zhao Xin1,Feng Zhihua2,Ling Karen K. Y.2,Karp Gary M.1,Qi Hongyan1,Woll Matthew G.1,Chen Guangming1,Zhang Nanjing1,Gabbeta Vijayalakshmi1,Vazirani Priya1,Bhattacharyya Anuradha1,Furia Bansri1,Risher Nicole1,Sheedy Josephine1,Kong Ronald1,Ma Jiyuan1,Turpoff Anthony1,Lee Chang-Sun1,Zhang Xiaoyan1,Moon Young-Choon1,Trifillis Panayiota1,Welch Ellen M.1,Colacino Joseph M.1,Babiak John1,Almstead Neil G.1,Peltz Stuart W.1,Eng Loren A.3,Chen Karen S.3,Mull Jesse L.4,Lynes Maureen S.4,Rubin Lee L.4,Fontoura Paulo5,Santarelli Luca5,Haehnke Daniel5,McCarthy Kathleen D.3,Schmucki Roland5,Ebeling Martin5,Sivaramakrishnan Manaswini5,Ko Chien-Ping2,Paushkin Sergey V.3,Ratni Hasane5,Gerlach Irene5,Ghosh Anirvan5,Metzger Friedrich5

Affiliation:

1. PTC Therapeutics, 100 Corporate Court, South Plainfield, NJ 07080, USA.

2. Section of Neurobiology, Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089, USA.

3. SMA Foundation, 888 Seventh Avenue, Suite 400, New York, NY 10019, USA.

4. Department of Stem Cell and Regenerative Biology and the Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA.

5. Roche Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche, Grenzacherstrasse 124, 4070 Basel, Switzerland.

Abstract

Drugs that provide the splice of life Motor neurons relay signals from the nervous system to muscle fibers. In patients with spinal muscular atrophy, a protein required for the survival of these neurons is deficient or missing altogether, so the neurons gradually die and the patients' muscles waste away. The disease is currently untreatable. Naryshkin et al. discovered small-molecule drugs that cause cells to produce the missing protein by altering how a specific mRNA is put together, or “spliced” (see the Perspective by Vigevani and Valcárcel). When the researchers used the drugs to treat diseased mice, the mice showed marked improvement in muscle mass, motor function, and survival. Science , this issue p. 688 ; see also p. 624

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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