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Specialized regions of the plasma membrane dedicated to diverse cellular processes, such as vesicle exocytosis, extracellular matrix remodeling, and cell migration, share a few cytosolic scaffold proteins that associate to form large plasma membrane-associated platforms (PMAPs). PMAPs organize signaling events and trafficking of membranes and molecules at specific membrane domains. On the basis of the intrinsic disorder of the proteins constituting the core of these PMAPs and of the dynamics of these structures at the periphery of motile cells, we propose a working model for the assembly and turnover of these platforms.
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http://dx.doi.org/10.1126/scisignal.aaa3312 | DOI Listing |
Plant Cell
September 2025
Department of Life Sciences, Imperial College London, London SW7 2AZ, UK.
Communication between cellular organelles is essential for mounting effective innate immune responses. The transport of organelles to pathogen penetration sites and their assembly around the host membrane, which delineates the plant-pathogen interface, are well-documented. However, whether organelles associate with these specialized interfaces, and the extent to which this process contributes to immunity, remain unknown.
View Article and Find Full Text PDFChem Asian J
September 2025
Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan, 333031, India.
Biomembranes act as boundaries between cells and their outside environment and between intracellular compartments, playing integral roles in cellular signaling and communications. A vast body of research has shown that biomembranes are dynamic and heterogeneous, and that they largely vary in lipid compositions and their organizations, governing a plethora of membrane-associated biological processes. Fluorescent tools, including fluorescent contrast agents (fluorophores) and fluorescence imaging modalities, have been demonstrated to be powerful in studying lipid membrane structures and dynamics.
View Article and Find Full Text PDFProteomes
August 2025
Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PT, UK.
Unlabelled: Background Plasma membrane proteins (PMPs) play key roles in cell signalling, adhesion, and trafficking, and are attractive therapeutic targets in cancer due to their surface accessibility. However, their typically low abundance limits detection by conventional proteomic approaches.
Methods: To improve PMP detection, we employed a surface proteomics workflow combining cell surface biotinylation and affinity purification prior to LC-MS/MS analysis in cervical (SiHa) and bladder (UMUC3) cancer cell lines cultured under normoxic (21% O) or hypoxic (0.
Plant Sci
August 2025
Department of Bioresources, School of Biological Sciences, University of Kashmir, Hazratbal, Srinagar 190006, India. Electronic address:
The plasma membrane (PM) is a versatile and complex biological membrane, consisting of a dynamic assembly of lipids and proteins that protects the cell and separates it from its external environment. Lipids are essential in preserving the stability of the membrane while also regulating the activity of membrane proteins. Additionally, the PM significantly contributes to detecting environmental stress and serves as the primary target of its effects.
View Article and Find Full Text PDFJ Plant Physiol
August 2025
Department of Integrative Food, Bioscience, and Biotechnology, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Bioenergy and Biotechnology, Chonnam National University, Gwangju, 61186, Republic of Korea. Electronic address:
Rare Cold Inducible 2s (RCI2s) are membrane-associated proteolipids dynamically trafficking between the plasma membrane (PM) and the endomembrane system. Their expression is upregulated in response to abiotic stresses, including cold, heat, drought, and salinity, contributing to plant stress tolerance. CsRCI2E interacts with the water transport protein CsPIP2; 1, reducing its abundance at the PM under NaCl-induced stress.
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