Premium
Ski3/TTC37 deficiency associated with trichohepatoenteric syndrome causes mitochondrial dysfunction in Drosophila
Author(s) -
Ohnuma Kohei,
Kishita Yoshihito,
Nyuzuki Hiromi,
Kohda Masakazu,
Ohtsu Yuta,
Takeo Satomi,
Asano Tsunaki,
SatoMiyata Yukiko,
Ohtake Akira,
Murayama Kei,
Okazaki Yasushi,
Aigaki Toshiro
Publication year - 2020
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1002/1873-3468.13792
Subject(s) - mutant , biology , pathogenesis , phenotype , transgene , mitochondrion , mutation , microbiology and biotechnology , tetratricopeptide , genetics , gene , genetically modified mouse , wild type , immunology
Tetratricopeptide repeat protein 37 ( TTC37 ) is a causative gene of trichohepatoenteric syndrome (THES). However, little is known about the pathogenesis of this disease. Here, we characterize the phenotype of a Drosophila model in which ski3 , a homolog of TTC37 , is disrupted. The mutant flies are pupal lethal, and the pupal lethality is partially rescued by transgenic expression of wild‐type ski3 or human TTC37 . The mutant larvae show growth retardation, heart arrhythmia, triacylglycerol accumulation, and aberrant metabolism of glycolysis and the TCA cycle. Moreover, mitochondrial membrane potential and respiratory chain complex activities are significantly reduced in the mutants. Our results demonstrate that ski3 deficiency causes mitochondrial dysfunction, which may underlie the pathogenesis of THES.