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Full-Text Articles in Medicine and Health Sciences

Mitochondrial Metabolism In Major Neurological Diseases, Zhengqiu Zhou, Grant L. Austin, Lyndsay E. A. Young, Lance A. Johnson, Ramon Sun Nov 2018

Mitochondrial Metabolism In Major Neurological Diseases, Zhengqiu Zhou, Grant L. Austin, Lyndsay E. A. Young, Lance A. Johnson, Ramon Sun

Molecular and Cellular Biochemistry Faculty Publications

Mitochondria are bilayer sub-cellular organelles that are an integral part of normal cellular physiology. They are responsible for producing the majority of a cell’s ATP, thus supplying energy for a variety of key cellular processes, especially in the brain. Although energy production is a key aspect of mitochondrial metabolism, its role extends far beyond energy production to cell signaling and epigenetic regulation–functions that contribute to cellular proliferation, differentiation, apoptosis, migration, and autophagy. Recent research on neurological disorders suggest a major metabolic component in disease pathophysiology, and mitochondria have been shown to be in the center of metabolic dysregulation and possibly …


Lafora Disease Offers A Unique Window Into Neuronal Glycogen Metabolism, Matthew S. Gentry, Joan J. Guinovart, Berge A. Minassian, Peter J. Roach, Jose M. Serratosa Feb 2018

Lafora Disease Offers A Unique Window Into Neuronal Glycogen Metabolism, Matthew S. Gentry, Joan J. Guinovart, Berge A. Minassian, Peter J. Roach, Jose M. Serratosa

Molecular and Cellular Biochemistry Faculty Publications

Lafora disease (LD) is a fatal, autosomal recessive, glycogen-storage disorder that manifests as severe epilepsy. LD results from mutations in the gene encoding either the glycogen phosphatase laforin or the E3 ubiquitin ligase malin. Individuals with LD develop cytoplasmic, aberrant glycogen inclusions in nearly all tissues that more closely resemble plant starch than human glycogen. This Minireview discusses the unique window into glycogen metabolism that LD research offers. It also highlights recent discoveries, including that glycogen contains covalently bound phosphate and that neurons synthesize glycogen and express both glycogen synthase and glycogen phosphorylase.


Distinct And Shared Functions Of Als-Associated Proteins Tdp-43, Fus And Taf15 Revealed By Multisystem Analyses, Katannya Kapeli, Gabriel A. Pratt, Anthony Q. Vu, Kasey R. Hutt, Fernando J. Martinez, Balaji Sundararaman, Ranjan Batra, Peter Freese, Nicole J. Lambert, Stephanie C. Huelga, Seung J. Chun, Tiffany Y. Liang, Jeremy Chang, John P. Donohue, Lily Shiue, Jiayu Zhang, Haining Zhu, Franca Cambi, Edward J. Kasarskis, Shawn Hoon, Manuel Ares Jr., Christopher B. Burge, John Ravits, Frank Rigo, Gene W. Yeo Jul 2016

Distinct And Shared Functions Of Als-Associated Proteins Tdp-43, Fus And Taf15 Revealed By Multisystem Analyses, Katannya Kapeli, Gabriel A. Pratt, Anthony Q. Vu, Kasey R. Hutt, Fernando J. Martinez, Balaji Sundararaman, Ranjan Batra, Peter Freese, Nicole J. Lambert, Stephanie C. Huelga, Seung J. Chun, Tiffany Y. Liang, Jeremy Chang, John P. Donohue, Lily Shiue, Jiayu Zhang, Haining Zhu, Franca Cambi, Edward J. Kasarskis, Shawn Hoon, Manuel Ares Jr., Christopher B. Burge, John Ravits, Frank Rigo, Gene W. Yeo

Molecular and Cellular Biochemistry Faculty Publications

The RNA-binding protein (RBP) TAF15 is implicated in amyotrophic lateral sclerosis (ALS). To compare TAF15 function to that of two ALS-associated RBPs, FUS and TDP-43, we integrate CLIP-seq and RNA Bind-N-Seq technologies, and show that TAF15 binds to ∼4,900 RNAs enriched for GGUA motifs in adult mouse brains. TAF15 and FUS exhibit similar binding patterns in introns, are enriched in 3′ untranslated regions and alter genes distinct from TDP-43. However, unlike FUS and TDP-43, TAF15 has a minimal role in alternative splicing. In human neural progenitors, TAF15 and FUS affect turnover of their RNA targets. In human stem cell-derived motor …