Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

The cellular stresses, genetic mutations, and environmental factors can critically affect the protein quality control checkpoints resulting in protein misfolding. Molecular chaperones play a crucial role in maintaining the healthy proteome by refolding the misfolded proteins into the native functional conformations. However, if they fail to refold the misfolded proteins into the native state, they are targeted by proteolytic systems for degradation. If the misfolded protein numbers increase more than what a cell can resolve, they get converted protein aggregates/inclusion bodies. The inclusion bodies are less cytotoxic than misfolded proteins. The enhanced production of misfolded proteins and protein aggregates are linked to several diseases collectively termed proteinopathies, which includes several neurodegenerative disorders. The understanding of molecular mechanisms that regulate the turnover of protein aggregates will pave path for therapeutic interventions of proteinopathies. In a recent report, we showed that a tripartite motif (TRIM) family protein, TRIM16 streamlines the process of protein aggregates turnover by regulating the NRF2-p62 axis and autophagy.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6551674PMC
http://dx.doi.org/10.15698/cst2018.12.169DOI Listing

Publication Analysis

Top Keywords

misfolded proteins
20
protein aggregates
12
protein
8
proteins native
8
misfolded
6
proteins
5
trim16 employs
4
employs nrf2
4
nrf2 ubiquitin
4
ubiquitin system
4

Similar Publications

Optimizing protein folding in prokaryotes: Strategies to enhance soluble expression of recombinant proteins.

Bioresour Technol

September 2025

State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China; International Joint Laboratory on Fo

Recombinant proteins have been widely applied in the food, biomedical, and scientific fields. Prokaryotic expression systems are preferred platforms for recombinant protein production due to their rapid growth and high protein yields. Nevertheless, disparities between recombinant expression environment and native physiological conditions frequently result in protein misfolding, leading to aggregation into non-functional inclusion bodies or proteolytic degradation.

View Article and Find Full Text PDF

Neurodegenerative diseases (NDs), including Alzheimer's, Huntington's, and Parkinson's disease, are associated with significant declines in cognitive function and mobility. The accumulation of misfolded proteins such as β-amyloid, tau, α-synuclein, and polyglutamates is a key factor in the progression of these conditions. Unfortunately, traditional small-molecule drugs face major obstacles in effectively targeting these proteins.

View Article and Find Full Text PDF

Microplastics and nanoplastics (MNPs) are common pollutants that engage with proteins, lipids, nucleic acids, and other biomolecules, damaging cell structure. This review goes beyond simply listing where MNPs are found to explore how they cause harm, detailing mechanisms such as oxidative stress, endocrine disruption, genotoxicity, protein misfolding, lipid membrane destabilization, and epigenetic changes. Propose an integrated mechanistic hypothesis connecting these processes via oxidative epigenetic feedback loops, size-dependent organelle targeting, and pollutant corona effects, with potential implications for cellular aging and transgenerational outcomes.

View Article and Find Full Text PDF

Spinal and bulbar muscular atrophy (SBMA) is a CAG/polyglutamine (polyQ) repeat expansion disorder in which the mutant androgen receptor (AR) protein triggers progressive degeneration of the neuromuscular system in men. As the misfolded polyQ AR is the proximal mediator of toxicity, therapeutic efforts have focused on targeting the mutant protein, but these prior efforts have met with limited success in SBMA patients. Here, we examine the efficacy of small molecule AR proteolysis-targeting chimera (PROTAC) degraders that rapidly and potently promote AR ubiquitination and degradation by the proteasome.

View Article and Find Full Text PDF

Background: Amyloidosis is a disorder characterized by misfolded protein deposits in organs, often manifesting as cardiac disease.

Case Summary: A 60-year-old male with a history of isolated proteinuria and recent fat biopsy-proven transthyretin (TTR) amyloidosis was referred to us for evaluation of cardiac involvement with amyloidosis. He underwent a technetium pyrophosphate scan which showed Perugini grade 3 uptake concerning for cardiac involvement.

View Article and Find Full Text PDF