ArticleThe Journal of biological chemistry
The position of single-base deletions in the VNTR sequence of the carboxyl ester lipase (CEL) gene determines proteotoxicity.
Article in The Journal of biological chemistry. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
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Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- Pooled it
- Novel variation in theFrontiers in endocrinology · 2026Review
- The MODY-Causing Mutation of the Human Carboxyl Ester Lipase Gene (CEL) Triggers Chronic Pancreatitis But Not Diabetes in Mice.Gastroenterology · 2025Article
- Rare forms of monogenic diabetes in non-European individuals. First reports of CEL and RFX6 mutations from the Indian subcontinent.Acta diabetologica · 2025Article
- Exploring the enigmatic association between PNLIP variants and risk of chronic pancreatitis in a large Chinese cohort.Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2024Article
- Common single-base insertions in the VNTR of the carboxyl ester lipase (CEL) gene are benign and also likely to arise somatically in the exocrine pancreas.Human molecular genetics · 2024Article
- Identification and characterization of novel carboxyl ester lipase gene variants in patients with different subtypes of diabetes.BMJ open diabetes research & care · 2023Article
- From glucose sensing to exocytosis: takes from maturity onset diabetes of the young.Frontiers in endocrinology · 2023Review
- The genetic risk factor CEL-HYB1 causes proteotoxicity and chronic pancreatitis in mice.Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2022Article
- ISPAD Clinical Practice Consensus Guidelines 2022: The diagnosis and management of monogenic diabetes in children and adolescents.Pediatric diabetes · 2022Article
- Endoplasmic stress-inducing variants in carboxyl ester lipase and pancreatic cancer risk.Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2022Article
- Article
- Misfolding-induced chronic pancreatitis in CPA1 N256K mutant mice is unaffected by global deletion of Ddit3/Chop.Scientific reports · 2022Article
- Two New Mutations in the CEL Gene Causing Diabetes and Hereditary Pancreatitis: How to Correctly Identify MODY8 Cases.The Journal of clinical endocrinology and metabolism · 2022Article
- The CEL-HYB1 Hybrid Allele Promotes Digestive Enzyme Misfolding and Pancreatitis in Mice.Cellular and molecular gastroenterology and hepatology · 2022Article
Corrections and comments
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Authors and funding
10 authors at 4 institutions in 3 countries.
Funding
Abstract
Variable number of tandem repeat (VNTR) sequences in the genome can have functional consequences that contribute to human disease. This is the case for the CEL gene, which is specifically expressed in pancreatic acinar cells and encodes the digestive enzyme carboxyl ester lipase. Rare single-base deletions (DELs) within the first (DEL1) or fourth (DEL4) VNTR segment of CEL cause maturity-onset diabetes of the young, type 8 (MODY8), an inherited disorder characterized by exocrine pancreatic dysfunction and diabetes. Studies on the DEL1 variant have suggested that MODY8 is initiated by CEL protein misfolding and aggregation. However, it is unclear how the position of single-base deletions within the CEL VNTR affects pathogenic properties of the protein. Here, we investigated four naturally occurring CEL variants, arising from single-base deletions in different VNTR segments (DEL1, DEL4, DEL9, and DEL13). When the four variants were expressed in human embryonic kidney 293 cells, only DEL1 and DEL4 led to significantly reduced secretion, increased intracellular aggregation, and increased endoplasmic reticulum stress compared with normal CEL protein. The level of O-glycosylation was affected in all DEL variants. Moreover, all variants had enzymatic activity comparable with that of normal CEL. We conclude that the longest aberrant protein tails, resulting from single-base deletions in the proximal VNTR segments, have highest pathogenic potential, explaining why DEL1 and DEL4 but not DEL9 and DEL13 have been observed in patients with MODY8. These findings further support the view that CEL mutations cause pancreatic disease through protein misfolding and proteotoxicity, leading to endoplasmic reticulum stress and activation of the unfolded protein response.
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