Related Experiment Video
Updated: Aug 13, 2026

Electrochemiluminescence Assays for Human Islet Autoantibodies
Published on: March 23, 2018
Increased stress protein ORP150 autoantibody production in Type 1 diabetic patients
Y Nakatani1, H Kaneto, M Hatazaki
1Department of Internal Medicine and Therapeutics, Osaka University Graduate School of Medicine, Osaka and Department of Neuroanatomy, Kanazawa University Medical School, Ishikawa, Japan.
Aims:
Various genetic and environmental stresses interfere with protein folding in the endoplasmic reticulum (ER), which leads to the induction of ER stress. It has recently been reported that ER stress is involved in the development of diabetes in diabetic animal models. The aim of this study is to estimate ER stress levels in Type 1 diabetic patients.
Methods:
We recruited Type 1 diabetic patients undergoing periodic follow-up examinations (n = 91) and healthy non-diabetic individuals (n = 37), and measured their serum anti-oxygen-related protein (ORP)150 autoantibody levels.
Results:
Anti-ORP150 autoantibody levels in Type 1 diabetic patients were significantly higher compared with those in healthy non-diabetic subjects. Furthermore, the serum autoantibody levels in Type 1 diabetic patients correlated with HbA(1c) (F > 3.0, P = 0.079), indicating that hyperglycaemia itself induces ER stress in diabetes.
Conclusions:
Anti-ORP150 autoantibody levels in Type 1 diabetic patients are higher compared with non-diabetic subjects, suggesting that ER stress is increased in Type 1 diabetes.
Related Concept Videos
Type I Diabetes II: Pathophysiology
Type I Diabetes I: Introduction
Psychoneuroimmunology: Diabetes and Cancer
Type II Diabetes II: Pathophysiology
Type I Diabetes III: Clinical Manifestations
Type II Diabetes I: Introduction
