2017
DOI: 10.1097/mog.0000000000000380
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Genetic risk in chronic pancreatitis: the misfolding-dependent pathway

Abstract: Purpose of reviewGenetic risk in chronic pancreatitis is partly due to mutations that cause misfolding of digestive enzymes and elicit endoplasmic reticulum stress. This review examines recent developments in this concept.Recent findingsThe best characterized misfolding variants in the highly expressed digestive proteases cationic trypsinogen (PRSS1) and carboxypeptidase A1 (CPA1) are strong, causative risk factors for chronic pancreatitis and may be associated with autosomal dominant hereditary pancreatitis.S… Show more

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Cited by 81 publications
(18 citation statements)
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References 58 publications
(59 reference statements)
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“…Mutations in digestive enzymes can alter their folding and result in reduced secretion with intracellular retention, degradation and resultant endoplasmic reticulum (ER) stress. This mechanism has been observed with a subset of PRSS1 variants and in pathogenic CPA1 variants [33]. Only four of 23 PNLIP variants showed reduced secretion consistent with the possibility of protein misfolding.…”
Section: Discussionsupporting
confidence: 59%
“…Mutations in digestive enzymes can alter their folding and result in reduced secretion with intracellular retention, degradation and resultant endoplasmic reticulum (ER) stress. This mechanism has been observed with a subset of PRSS1 variants and in pathogenic CPA1 variants [33]. Only four of 23 PNLIP variants showed reduced secretion consistent with the possibility of protein misfolding.…”
Section: Discussionsupporting
confidence: 59%
“…Endoplasmic reticulum (ER) stress induced by protein misfolding and overaccumulation in the ER lumen has been documented to be chronically activated in CP and may thus be an important pathogenic mechanism in this disease 11,12 . During ER stress, also known as the unfolded protein response, ER sensors such as ATF6, PERK, and IRE1 become activated and promote the degradation of misfolded proteins, production of molecular chaperones, and cell apoptosis 13,14 .…”
Section: Introductionmentioning
confidence: 99%
“…In combination with other stressors, the presence of PNLIPRP2 aggregates could activate cell death and inflammatory pathways leading to pancreatitis. A similar mechanism was reported for misfolding PRSS1 and carboxypeptidase A1 (CPA1) mutants, which appear to cause pancreatitis through endoplasmic reticulum stress [ 22 ]. Herein, we investigated whether the p.W358X PNLIPRP2 allele is a genetic risk factor for CP in patients with alcohol-related and non-alcohol-related CP.…”
Section: Introductionmentioning
confidence: 62%