A new insight into the lens: cytosolic PLAAT phospholipases degrade organelles to make the lens transparent.

Autophagy

Department of Biochemistry and Molecular Biology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.

Published: September 2021

All membrane-bound organelles are degraded during the terminal differentiation of lens fiber cells. How these organelles are degraded has been a long-standing question in biology. We recently revealed that PLAAT (phospholipase A and acyltransferase)-family phospholipases degrade organelles in the lens independently of macroautophagy. Here, we discuss the mechanism and physiological relevance of this new mode of intracellular degradation.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8496548PMC
http://dx.doi.org/10.1080/15548627.2021.1950372DOI Listing

Publication Analysis

Top Keywords

phospholipases degrade
8
degrade organelles
8
organelles lens
8
organelles degraded
8
insight lens
4
lens cytosolic
4
cytosolic plaat
4
plaat phospholipases
4
organelles
4
lens transparent
4

Similar Publications

Progesterone induces meiosis through two obligate co-receptors with PLA2 activity.

Elife

January 2025

Calcium Signaling Group, Research Department, Weill Cornell Medicine Qatar, Education City, Qatar Foundation, Doha, Qatar.

The steroid hormone progesterone (P4) regulates multiple aspects of reproductive and metabolic physiology. Classical P4 signaling operates through nuclear receptors that regulate transcription. In addition, P4 signals through membrane P4 receptors (mPRs) in a rapid nongenomic modality.

View Article and Find Full Text PDF

Silibinin, a PLC-β3 inhibitor, inhibits mast cell activation and alleviates OVA-induced asthma.

Mol Immunol

January 2025

Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Master Program of Pharmaceutical Manufacture, College of Pharmacy, China Medical University, Taichung, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medical and Health Science, Asia University, Taichung, Taiwan. Electronic address:

The immunoglobulin E (IgE) receptor FcεRI (Fc epsilon RI) plays a crucial role in allergic reactions. Recent studies have indicated that the interaction between FcεRIβ and the downstream protein phospholipase C beta 3 (PLCβ3) leads to the production of inflammatory cytokines. The aim of this study was to develop small molecules that inhibit the protein-protein interactions between FcεRIβ and PLCβ3 to treat allergic inflammation.

View Article and Find Full Text PDF

Polyethylene nanoplastics (NPs) are widely diffused in terrestrial environments, including soil ecosystems, but the stress mechanisms in plants are not well understood. This study aimed to investigate the effects of two increasing concentrations of NPs (20 and 200 mg kg of soil) in lettuce. To this aim, high-throughput hyperspectral imaging was combined with metabolomics, covering both primary (using NMR) and secondary metabolism (using LC-HRMS), along with lipidomics profiling (using ion-mobility-LC-HRMS) and plant performance.

View Article and Find Full Text PDF

Acute lung injury (ALI) is a severe respiratory disease with high mortality, mainly due to overactivated oxidative stress and subsequent pyroptosis. Mesencephalic astrocyte-derived neurotrophic factor (MANF), an inducible secretory endoplasmic reticulum (ER) stress protein, inhibits lipopolysaccharide (LPS)-induced acute lung injury (ALI). However, the exact molecular mechanism remains unclear.

View Article and Find Full Text PDF

() has caused huge economic losses to the cattle industry. The interaction between and host cells is elucidated by screening and identifying the target protein of adhesin on the surface of the host cell membrane. However, the response mechanism of embryonic bovine lung (EBL) cells to infection is not yet fully understood.

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!