NGLY1 deficiency is a rare inherited disorder caused by mutations in the NGLY1 gene encoding N-glycanase 1 that is a hydrolase for N-linked glycosylated proteins. An induced pluripotent stem cell (iPSC) line was generated from the dermal fibroblasts of a 16-year-old patient with homozygous mutation of p.R401X (c.1201 A>T) in the NGLY1 gene. Our iPSC model offers a useful resource to study the disease pathophysiology and to develop therapeutics for treatment of NGLY1 patients.
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http://dx.doi.org/10.1016/j.scr.2019.101496 | DOI Listing |
J Inflamm Res
December 2024
Rheumatology Department, Wangjing Hospital of China Academy of Chinese Medical Sciences, Beijing, People's Republic of China.
Lactic acid (LA) is an essential glycolytic metabolite and energy source in the body, which is present in high levels in the synovial fluid of patients with rheumatoid arthritis (RA) and is a reliable indicator for identifying inflammatory arthritis. LA not only acts as an inflammatory amplifier in RA, recent studies have found that novel posttranslational modification (PTM) lactylation mediated by LA may also play a key role in RA. Single-cell sequencing showed that the RA lactylation score of patients with RA was significantly increased, and core lactylation-promoting genes, including NDUFB3, NGLY1, and other genes, were found to be potential biomarkers of RA.
View Article and Find Full Text PDFFront Immunol
October 2024
Department of Orthopedics, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua Municipal Central Hospital, Jinhua, Zhejiang, China.
Introduction: Rheumatoid arthritis (RA) is a chronic autoimmune disorder characterized by persistent synovitis, systemic inflammation, and autoantibody production. This study aims to explore the role of lactylation in plasma cells and its impact on RA pathogenesis.
Methods: We utilized single-cell RNA sequencing (scRNA-seq) data and applied bioinformatics and machine learning techniques.
Glycobiology
September 2024
Glycometabolic Biochemistry Laboratory, RIKEN Cluster for Pioneering Research (CPR), Riken, 2-1 Hirosawa, Wako Saitama 351-0198, Japan.
Cytosolic peptide: N-glycanase (PNGase/NGLY1 in mammals) is an amidase (EC:3.5.1.
View Article and Find Full Text PDFFEBS Lett
September 2024
Laboratory of Protein Metabolism, Tokyo Metropolitan Institute of Medical Science, Japan.
JCI Insight
October 2024
Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA.
The cytoplasmic peptide:N-glycanase (NGLY1) is ubiquitously expressed and functions as a de-N-glycosylating enzyme that degrades misfolded N-glycosylated proteins. NGLY1 deficiency due to biallelic loss-of-function NGLY1 variants is an ultrarare autosomal recessive deglycosylation disorder with multisystemic involvement; the neurological manifestations represent the main disease burden. Currently, there is no treatment for this disease.
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