Genetic circuitry of Survival motor neuron, the gene underlying spinal muscular atrophy.

نویسندگان

  • Anindya Sen
  • Douglas N Dimlich
  • K G Guruharsha
  • Mark W Kankel
  • Kazuya Hori
  • Takakazu Yokokura
  • Sophie Brachat
  • Delwood Richardson
  • Joseph Loureiro
  • Rajeev Sivasankaran
  • Daniel Curtis
  • Lance S Davidow
  • Lee L Rubin
  • Anne C Hart
  • David Van Vactor
  • Spyros Artavanis-Tsakonas
چکیده

The clinical severity of the neurodegenerative disorder spinal muscular atrophy (SMA) is dependent on the levels of functional Survival Motor Neuron (SMN) protein. Consequently, current strategies for developing treatments for SMA generally focus on augmenting SMN levels. To identify additional potential therapeutic avenues and achieve a greater understanding of SMN, we applied in vivo, in vitro, and in silico approaches to identify genetic and biochemical interactors of the Drosophila SMN homolog. We identified more than 300 candidate genes that alter an Smn-dependent phenotype in vivo. Integrating the results from our genetic screens, large-scale protein interaction studies, and bioinformatic analysis, we define a unique interactome for SMN that provides a knowledge base for a better understanding of SMA.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Spinal Muscular Atrophy: A Short Review Article

Spinal muscular atrophy (SMA) is a genetic disorder which affect nervous system and is characterized with progressive distal motor neuron weakness. The survival motor neuron (SMN) protein level reduces in patients with SMA. Two different genes code survival motor neuron protein in human genome. Skeletal and intercostal muscles denervation lead to weakness, hypotony, hyporeflexia, respiratory fa...

متن کامل

Drawing Word co-occurrence map of Spinal Muscular Atrophy disease

Introduction:  The purpose of this article is to evaluate the status of articles in the field of Spinal Muscular Atrophy According to the Scientometrics indices Word co-occurrence map of this field . Methods: The present study is an applied one with a quantitative approach and a descriptive approach. It has been done using scientometrics and the co-occurrence words analysis technique. Document...

متن کامل

Molecular analysis of the neuronal apoptosis inhibitory protein gene in families with spinal muscular atrophy.

BACKGROUND Spinal muscular atrophy is an autosomal recessive disorder characterized by degeneration of anterior horn cells in the spinal cord leading to progressive muscular weakness and atrophy. The spinal muscular atrophy candidate interval genes including survival motor neuron, the responsible gene in spinal muscular atrophy phenotype expression, neuronal apoptosis inhibitory protein, and P4...

متن کامل

Synaptic Defects in the Spinal and Neuromuscular Circuitry in a Mouse Model of Spinal Muscular Atrophy

Spinal muscular atrophy (SMA) is a major genetic cause of death in childhood characterized by marked muscle weakness. To investigate mechanisms underlying motor impairment in SMA, we examined the spinal and neuromuscular circuitry governing hindlimb ambulatory behavior in SMA model mice (SMNΔ7). In the neuromuscular circuitry, we found that nearly all neuromuscular junctions (NMJs) in hindlimb ...

متن کامل

Animal models of spinal muscular atrophy.

Spinal muscular atrophy, a common autosomal recessive motor neuron disorder, is caused by the loss of the survival motor neuron gene (SMN1). SMN2, a nearly identical copy gene, is present in all spinal muscular atrophy patients but differs by a critical nucleotide that alters exon 7 splicing efficiency. This results in low survival motor neuron protein levels, which are not enough to sustain mo...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Proceedings of the National Academy of Sciences of the United States of America

دوره 110 26  شماره 

صفحات  -

تاریخ انتشار 2013