The association between renal accumulation of pancreatic amyloid-forming amylin and renal hypoxia.

Front Endocrinol (Lausanne)

Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States.

Published: March 2023

Chronic kidney disease (CKD) is increasing worldwide and is associated with diabetic states (obesity, prediabetes and type-2 diabetes mellitus). The kidney is intrinsically susceptible to low oxygen (hypoxia) and renal hypoxia plays a vital role in the progression of CKD. Recent studies suggest an association between CKD and renal deposition of amyloid-forming amylin secreted from the pancreas. Renal accumulation of amyloid-forming amylin is associated with hypertension, mitochondrial dysfunction, increased production of reactive oxygen species (ROS) and activation of hypoxia signaling in the kidney. In this review we will discuss potential associations between renal amylin amyloid accumulation, hypertension, and mechanism of hypoxia-induced kidney dysfunction, including activation of hypoxia-inducible factors (HIFs) and mitochondrial dysfunction.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9978768PMC
http://dx.doi.org/10.3389/fendo.2023.1104662DOI Listing

Publication Analysis

Top Keywords

amyloid-forming amylin
12
renal accumulation
8
renal hypoxia
8
mitochondrial dysfunction
8
renal
5
association renal
4
accumulation pancreatic
4
pancreatic amyloid-forming
4
amylin
4
amylin renal
4

Similar Publications

Early-stage aggregates of amyloid-forming proteins, specifically soluble oligomers, are implicated in neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and Huntington's disease. Protein aggregation is typically monitored by fluorescence using the amyloid-binding fluorophore thioflavin T (ThT). Thioflavin T interacts, however, preferentially with fibrillar amyloid structures rather than with soluble, early-stage aggregates.

View Article and Find Full Text PDF

Neuroinflammation induced by amyloid-forming pancreatic amylin: Rationale for a mechanistic hypothesis.

Biophys Chem

July 2024

Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY 40536, USA. Electronic address:

Amylin is a systemic neuroendocrine hormone co-expressed and co-secreted with insulin by pancreatic β-cells. In persons with thype-2 diabetes, amylin forms pancreatic amyloid triggering inflammasome and interleukin-1β signaling and inducing β-cell apoptosis. Here, we summarize recent progress in understanding the potential link between amyloid-forming pancreatic amylin and Alzheimer's disease (AD).

View Article and Find Full Text PDF

Amyloid formation is a hallmark of various neurodegenerative disorders. In this contribution, energy landscapes are explored for various hexapeptides that are known to form amyloids. Heat capacity (CV) analysis at low temperature for these hexapeptides reveals that the low energy structures contributing to the first heat capacity feature above a threshold temperature exhibit a variety of backbone conformations for amyloid-forming monomers.

View Article and Find Full Text PDF

The association between renal accumulation of pancreatic amyloid-forming amylin and renal hypoxia.

Front Endocrinol (Lausanne)

March 2023

Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States.

Chronic kidney disease (CKD) is increasing worldwide and is associated with diabetic states (obesity, prediabetes and type-2 diabetes mellitus). The kidney is intrinsically susceptible to low oxygen (hypoxia) and renal hypoxia plays a vital role in the progression of CKD. Recent studies suggest an association between CKD and renal deposition of amyloid-forming amylin secreted from the pancreas.

View Article and Find Full Text PDF

Alzheimer Disease (AD) pathology has been linked to brain accumulation of β amyloid (Aβ) and neurofibrillary tau tangles. An intriguing question is whether targeting therapeutically factors independent of Aβ and tau pathologies could delay or even stop neurodegeneration. Amylin, a pancreatic hormone co-secreted with insulin, is believed to play a role in the central regulation of satiation and was shown to form pancreatic amyloid in persons with type-2 diabetes mellitus.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!