Angelini C, Bello L, Spinazzi M, Ferrati C
Department of Neurosciences, University of Padova, Italy.
Acta Myol. 2009 Jul;28(1):16-23.
Mitochondrial myopathies are regulated by two genomes: the nuclear DNA, and the mitochondrial DNA. While, so far, most studies have dealt with mitochondrial myopathies due to deletions or point mutations in the mitochondrial DNA, a new field of investigation is that of syndromes due to mutations in the nuclear DNA. These latter disorders have mendelian inheritance.
Three representative cases have been selected: one with COX deficiency and a Leigh syndrome due to a SURF1 gene mutation, one due to a defect of Coenzyme Q synthesis and one with dominant optic atrophy due to a mutation in the OPA1 gene.
Future developments will show that many neurodegenerative disorders are due to mutations of nuclear genes controlling mitochondrial function, fusion and fission.
线粒体肌病由两个基因组调控:核DNA和线粒体DNA。迄今为止,大多数研究都集中在线粒体DNA缺失或点突变导致的线粒体肌病,而一个新的研究领域是核DNA突变引起的综合征。这些后者的疾病具有孟德尔遗传。
选择了三个代表性病例:一个因SURF1基因突变导致细胞色素c氧化酶(COX)缺乏和 Leigh 综合征,一个因辅酶Q合成缺陷,一个因OPA1基因突变导致显性视神经萎缩。
未来的发展将表明,许多神经退行性疾病是由于控制线粒体功能、融合和裂变的核基因突变所致。