Abstract:
:Cell pathology in lysosomal storage diseases is characterized by the formation of distended vacuoles with characteristics of lysosomes. Our previous studies in mucopolysaccharidosis type IIIB (MPSIIIB), a disease in which a genetic defect induces the accumulation of undigested heparan sulfate (HS) fragments, led to the hypothesis that abnormal lysosome formation was related to events occurring at the Golgi level. We reproduced the enzyme defect of MPSIIIB in HeLa cells using tetracycline-inducible expression of shRNAs directed against α-N-acetylglucosaminidase (NAGLU) and addressed this hypothesis. HeLa cells deprived of NAGLU accumulated abnormal lysosomes. The Golgi matrix protein GM130 was over-expressed. The cis- and medial-Golgi compartments were distended, elongated and formed circularized ribbons. The Golgi microtubule network was enlarged with increased amounts of AKAP450, a partner of GM130 controlling this network. GM130 down-regulation prevented pathology in HeLa cells deprived of NAGLU, whereas GM130 over-expression in control HeLa cells mimicked the pathology of deprived cells. We concluded that abnormal lysosomes forming in cells accumulating HS fragments were the consequence of GM130 gain-of-function and subsequent alterations of the Golgi ribbon architecture. These results indicate that GM130 functions are modulated by HS glycosaminoglycans and therefore possibly controlled by extracellular cues.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Roy E,Bruyère J,Flamant P,Bigou S,Ausseil J,Vitry S,Heard JMdoi
10.1093/hmg/ddr584subject
Has Abstractpub_date
2012-04-01 00:00:00pages
1481-95issue
7eissn
0964-6906issn
1460-2083pii
ddr584journal_volume
21pub_type
杂志文章abstract::A transcription map of the Huntington disease gene region was generated by a direct cDNA selection strategy using genomic DNA from the 4p16.3 region surrounding the D4S95 and D4S127 loci. A total of 58 cDNA fragments were obtained from cDNAs derived from fetal brain, frontal cortex, liver and bone marrow following hyb...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/2.7.901
更新日期:1993-07-01 00:00:00
abstract::Nephropathic cystinosis, a lysosomal storage disease caused by mutations in the CTNS gene encoding the lysosomal cystine transporter cystinosin, is characterized by generalized proximal tubule (PT) dysfunction that progresses, if untreated, to end-stage renal disease. The pathogenesis of defective PT cellular transpor...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt617
更新日期:2014-05-01 00:00:00
abstract::There has been substantial progress in psychiatric genetics in recent years, through collaborative efforts to build large samples sizes for case/control analyses for a number of psychiatric disorders. The identification of replicated trait-associated genomic loci represents a large stride forward in a field where litt...
journal_title:Human molecular genetics
pub_type: 杂志文章,评审
doi:10.1093/hmg/ddx241
更新日期:2017-10-01 00:00:00
abstract::Meiotic crossovers in the human genome cluster into highly localized hotspots identifiable indirectly from patterns of DNA diversity and directly by high-resolution sperm typing. Little is known about factors that control hotspot activity and the apparently rapid turnover of hotspots during recent evolution. Clues can...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddl063
更新日期:2006-05-01 00:00:00
abstract::An increased rate of de novo copy number variants (CNVs) has been found in schizophrenia (SZ), autism and developmental delay. An increased rate has also been reported in bipolar affective disorder (BD). Here, in a larger BD sample, we aimed to replicate these findings and compare de novo CNVs between SZ and BD. We us...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu379
更新日期:2014-12-15 00:00:00
abstract::A randomization procedure to evaluate the significance level and the false-discovery rate in complex microarray experiments is proposed. A related graph can be used to compare different test statistics that can be used to analyze the same experiment. This graph is closely related to receiver operator characteristic (R...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/11.19.2223
更新日期:2002-09-15 00:00:00
abstract::Seventeen families with Emery-Dreifuss muscular dystrophy (EDMD) have been studied both by DNA sequencing and by emerin protein expression. Fourteen had mutations in the X-linked emerin gene, while three showed evidence of autosomal inheritance. Twelve of the 14 emerin mutations caused early termination of translation...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/7.5.855
更新日期:1998-05-01 00:00:00
abstract::The striated muscle sarcomeres are highly organized structures composed of actin (thin) and myosin (thick) filaments that slide past each other during contraction. The integrity of sarcomeres is controlled by a set of structural proteins, among which are titin, a giant molecule that contains several immunoglobulin (Ig...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/8.7.1329
更新日期:1999-07-01 00:00:00
abstract::Mutations in the retinitis pigmentosa GTPase regulator (RPGR) gene account for >70% of X-linked retinitis pigmentosa (XLRP) and 15-20% of all inherited retinal degeneration. Gene replacement therapy for RPGR-XLRP was hampered by the relatively slow disease progression in mouse models and by difficulties in cloning the...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddv134
更新日期:2015-07-15 00:00:00
abstract::Prader-Willi syndrome (PWS) is caused by the loss of expression of imprinted genes in chromosome 15q11-q13. Affected individuals exhibit neonatal hypotonia, developmental delay and childhood-onset obesity. Necdin, a protein implicated in the terminal differentiation of neurons, is the only PWS candidate gene to reduce...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/9.12.1813
更新日期:2000-07-22 00:00:00
abstract::Mammalian sex chromosomes are thought to be descended from a homologous pair of autosomes: a testis-determining allele which defined the Y chromosome arose, recombination between the nascent X and Y chromosomes became restricted and the Y chromosome gradually lost its non-essential genetic functions. This model was or...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/7.3.429
更新日期:1998-03-01 00:00:00
abstract::Lafora progressive myoclonus epilepsy, caused by defective laforin or malin, insidiously present in normal teenagers with cognitive decline, followed by rapidly intractable epilepsy, dementia and death. Pathology reveals neurodegeneration with neurofibrillary tangle formation and Lafora bodies (LBs). LBs are deposits ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddi306
更新日期:2005-09-15 00:00:00
abstract::Lysosomes, melanosomes and platelet-dense granules are abnormal in the mouse hypopigmentation mutant pearl. The beta3A subunit of the AP-3 adaptor complex, which likely regulates protein trafficking in the trans - Golgi network/endosomal compartments, was identified as a candidate for the pearl gene by a positional/ca...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/8.2.323
更新日期:1999-02-01 00:00:00
abstract::Proteins and protein networks associated with cochlear pathogenesis in the Ames waltzer (av) mouse, a model for deafness in Usher syndrome 1F (USH1F), were identified. Cochlear protein from wild-type and av mice at postnatal day 30, a time point in which cochlear pathology is well established, was analyzed by quantita...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddq025
更新日期:2010-04-15 00:00:00
abstract::Amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD-TDP) are two neurodegenerative disorders characterized by the accumulation of TDP-43. TDP-43 is proteolitically cleaved to generate two major C-terminal fragments of 35 and 25 kDa. The latter, known as TDP-25, is a consistent feature of FT...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddv193
更新日期:2015-08-15 00:00:00
abstract::Familial hypercholesterolaemia (FH) is characterized by increased circulating low-density lipoprotein (LDL) cholesterol leading to premature atherosclerosis and coronary heart disease. Although FH is usually caused by mutations in LDLR, mutations in APOB and PCSK9 also cause FH but only a few mutations have been repor...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt573
更新日期:2014-04-01 00:00:00
abstract::Retinoblastoma is a non-hereditary as well as an inherited pediatric tumor of the developing retina resulting from the inactivation of both copies of the RB1 tumor suppressor gene. Familial retinoblastoma is a highly penetrant genetic disease that usually develops by carrying germline mutations that inactivate one all...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu245
更新日期:2014-10-01 00:00:00
abstract::Proper splicing is often crucial for gene functioning and its disruption may be strongly deleterious. Nevertheless, even the essential for splicing canonical dinucleotides of the splice sites are often polymorphic. Here, we use data from The 1000 Genomes Project to study single-nucleotide polymorphisms (SNPs) in the c...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddt200
更新日期:2013-09-01 00:00:00
abstract::In neurodegenerative disorders associated with primary or secondary mitochondrial defects such as Huntington's disease (HD), cells of the striatum are particularly vulnerable to cell death, although the mechanisms by which this cell death is induced are unclear. Dopamine, found in high concentrations in the striatum, ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddn033
更新日期:2008-05-15 00:00:00
abstract::Craniosynostosis, the abnormal development of the calvarial sutures, occurs as an autosomal dominant trait in many clinically distinct syndromes. We performed linkage analysis of a provisionally novel type of autosomal dominant craniosynostosis in a large three generational family. Linkage was established between the ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/2.2.119
更新日期:1993-02-01 00:00:00
abstract::Andersen's syndrome (AS) is a rare and dominantly inherited pathology, linked to the inwardly rectifying potassium channel Kir2.1. AS patients exhibit a triad of symptoms that include periodic paralysis, cardiac dysrhythmia and bone malformations. Some progress has been made in understanding the contribution of the Ki...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu462
更新日期:2015-01-15 00:00:00
abstract::Supravalvular aortic stenosis (SVAS) is an inherited obstructive vascular disease that affects the aorta, carotid, coronary and pulmonary arteries. Previous molecular genetic data have led to the hypothesis that SVAS results from mutations in the elastin gene, ELN. In these studies, the disease phenotype was linked to...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/6.7.1021
更新日期:1997-07-01 00:00:00
abstract::l-2-Hydroxyglutaric aciduria (l-2-HGA) is characterized by progressive deterioration of central nervous system function including epilepsy and macrocephaly in 50% of cases, and elevated levels of l-2-hydroxyglutaric acid in urine, blood and cerebrospinal fluid (CSF). Nuclear magnetic resonance imaging shows distinct a...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddh300
更新日期:2004-11-15 00:00:00
abstract::Actinic keratosis (AK) is a pre-malignant skin disease, highly prevalent in elderly Europeans. This study investigates genetic susceptibility to AK with a genome-wide association study (GWAS). A full body skin examination was performed in 3194 elderly individuals from the Rotterdam Study (RS) of exclusive north-wester...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddv076
更新日期:2015-06-01 00:00:00
abstract::The childhood motor neuron disease spinal muscular atrophy (SMA) results from reduced expression of the survival motor neuron (SMN) gene. Previous studies using in vitro model systems and lower organisms have suggested that low levels of Smn protein disrupt prenatal developmental processes in lower motor neurons, infl...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddp506
更新日期:2010-02-01 00:00:00
abstract::Autosomal dominant polycystic kidney disease (ADPKD) is characterized by the growth of renal cysts that ultimately destroy kidney function. Mutations in the PKD1 and PKD2 genes cause ADPKD. Their protein products, polycystin-1 (PC1) and polycystin-2 (PC2) have been proposed to form a calcium-permeable receptor-channel...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddy223
更新日期:2018-10-01 00:00:00
abstract::A long-standing question concerning X-chromosome inactivation (XCI) has been how some genes avoid the otherwise stable chromosome-wide heterochromatinization of the inactive X chromosome. As 20% or more of human X-linked genes escape from inactivation, such genes are an important contributor to sex differences in gene...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddy039
更新日期:2018-04-01 00:00:00
abstract::Three distinct regions, designated AZFa, b and c from proximal to distal Yq, are required for normal spermato-genesis in humans. Deletions involving AZFa (deletion interval 5C/D) seem to occur less frequently in infertile men and to be associated with a more severe testicular phenotype, with almost complete absence of...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/9.8.1161
更新日期:2000-05-01 00:00:00
abstract::The AFF (AF4/FMR2) family of genes includes four members: AFF1/AF4, AFF2/FMR2, AFF3/LAF4 and AFF4/AF5q31. AFF2/FMR2 is silenced in FRAXE intellectual disability, while the other three members have been reported to form fusion genes as a consequence of chromosome translocations with the myeloid/lymphoid or mixed lineag...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddr069
更新日期:2011-05-15 00:00:00
abstract::The congenital malformation split hand/foot (SHFM) is characterized by missing central fingers and dysmorphology or fusion of the remaining ones. Type-1 SHFM is linked to deletions/rearrangements of the DLX5-DLX6 locus and point mutations in the DLX5 gene. The ectrodactyly phenotype is reproduced in mice by the double...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddv514
更新日期:2016-02-15 00:00:00