Mutations in the profilin 1 gene cause familial amyotrophic lateral sclerosis.
Mutations in the profilin 1 gene cause familial amyotrophic lateral sclerosis.
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DOI:
10.1038/nature11280
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发表时间:
2012-08-23
期刊:
影响因子:
64.8
通讯作者:
Landers, John E.
中科院分区:
文献类型:
--
作者:
Wu, Chi-Hong;Fallini, Claudia;Ticozzi, Nicola;Keagle, Pamela J.;Sapp, Peter C.;Piotrowska, Katarzyna;Lowe, Patrick;Koppers, Max;McKenna-Yasek, Diane;Baron, Desiree M.;Kost, Jason E.;Gonzalez-Perez, Paloma;Fox, Andrew D.;Adams, Jenni;Taroni, Franco;Tiloca, Cinzia;Leclerc, Ashley Lyn;Chafe, Shawn C.;Mangroo, Dev;Moore, Melissa J.;Zitzewitz, Jill A.;Xu, Zuo-Shang;van den Berg, Leonard H.;Glass, Jonathan D.;Siciliano, Gabriele;Cirulli, Elizabeth T.;Goldstein, David B.;Salachas, Francois;Meininger, Vincent;Rossoll, Wilfried;Ratti, Antonia;Gellera, Cinzia;Bosco, Daryl A.;Bassell, Gary J.;Silani, Vincenzo;Drory, Vivian E.;Brown, Robert H., Jr.;Landers, John E.
Amyotrophic lateral sclerosis (ALS) is a late-onset neurodegenerative disorder resulting from motor neuron death. Approximately 10% of cases are familial (FALS), typically with a dominant inheritance mode. Despite numerous advances in recent years, nearly 50% of FALS cases have unknown genetic etiology. Here we show that mutations within the profilin 1 (PFN1) gene can cause FALS. PFN1 is critical for monomeric (G)-actin conversion to filamentous (F)-actin. Exome sequencing of two large ALS families revealed different mutations within the PFN1 gene. Additional sequence analysis identified 4 mutations in 7 out of 274 FALS cases. Cells expressing PFN1 mutants contain ubiquitinated, insoluble aggregates that in many cases contain the ALS-associated protein TDP-43. PFN1 mutants also display decreased bound actin levels and can inhibit axon outgrowth. Furthermore, primary motor neurons expressing mutant PFN1 display smaller growth cones with a reduced F-/G-actin ratio. These observations further document that cytoskeletal pathway alterations contribute to ALS pathogenesis.
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影响因子:
15.1
作者:
Fallini C;Bassell GJ;Rossoll W
通讯作者:
Rossoll W
影响因子:
14.8
作者:
Kumar, Prateek;Henikoff, Steven;Ng, Pauline C.
通讯作者:
Ng, Pauline C.
影响因子:
56.9
作者:
Kwiatkowski, T. J., Jr.;Bosco, D. A.;Brown, R. H., Jr.
通讯作者:
Brown, R. H., Jr.
影响因子:
2.9
作者:
MOCKRIN, SC;KORN, ED
通讯作者:
KORN, ED
影响因子:
25
作者:
Bosco, Daryl A.;Morfini, Gerardo;Karabacak, N. Murat;Song, Yuyu;Gros-Louis, Francois;Pasinelli, Piera;Goolsby, Holly;Fontaine, Benjamin A.;Lemay, Nathan;McKenna-Yasek, Diane;Frosch, Matthew P.;Agar, Jeffrey N.;Julien, Jean-Pierre;Brady, Scott T.;Brown, Robert H., Jr.
通讯作者:
Brown, Robert H., Jr.