Peron Camille, Mauceri Roberta, Iannielli Angelo, Cavaliere Andrea, Legati Andrea, Rizzo Ambra, Sciacca Francesca L, Broccoli Vania, Tiranti Valeria
Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico "Carlo Besta", Milan, Italy.
San Raffaele Scientific Institute, Milan, Italy; National Research Council (CNR), Institute of Neuroscience, Milan, Italy.
Stem Cell Res. 2021 Jan;50:102151. doi: 10.1016/j.scr.2020.102151. Epub 2021 Jan 4.
Pearson marrow pancreas syndrome (PMPS) is a sporadic mitochondrial disease, resulting from the clonal expansion of a mutated mitochondrial DNA (mtDNA) molecule bearing a macro-deletion, and therefore missing essential genetic information. PMPS is characterized by the presence of deleted (Δ) mtDNA that co-exist with the presence of a variable amount of wild-type mtDNA, a condition termed heteroplasmy. All tissues of the affected individual, including the haemopoietic system and the post-mitotic, highly specialized tissues (brain, skeletal muscle, and heart) contain the large-scale mtDNA deletion in variable amount. We generated human induced pluripotent stem cells (hiPSCs) from two PMPS patients, carrying different type of large-scale deletion.
皮尔逊骨髓胰腺综合征(PMPS)是一种散发性线粒体疾病,由携带大片段缺失的突变线粒体DNA(mtDNA)分子的克隆性扩增引起,因此缺失了重要的遗传信息。PMPS的特征是缺失的(Δ)mtDNA与可变数量的野生型mtDNA共存,这种情况称为异质性。受影响个体的所有组织,包括造血系统和有丝分裂后高度特化的组织(脑、骨骼肌和心脏)都含有不同数量的大规模mtDNA缺失。我们从两名携带不同类型大规模缺失的PMPS患者中生成了人类诱导多能干细胞(hiPSC)。