Several critical steps in the replication cycle of human immunodeficiency virus type 1 (HIV-1) - entry, assembly and budding - are complex processes that take place at the plasma membrane of the host cell. A growing body of data indicates that these early and late steps in HIV-1 replication take place in specialized plasma membrane microdomains, and that many of the viral and cellular components required for entry, assembly, and budding are concentrated in these microdomains. In particular, a number of studies have shown that cholesterol- and sphingolipid-enriched microdomains known as lipid rafts play important roles in multiple steps in the virus replication cycle. In this review, we provide an overview of what is currently known about the involvement of lipids and membrane microdomains in HIV-1 replication.
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http://dx.doi.org/10.1016/j.virusres.2009.04.007 | DOI Listing |
CNS Neurosci Ther
March 2025
School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, China.
Background: Alzheimer's disease (AD) is characterized by a decline in cognitive, learning, and memory abilities. Neuroinflammation is associated with the spread of tau tangles in the neocortex of AD, leading to cognitive impairment. Therefore, clarifying the pathogenesis of Neuroinflammation and finding effective treatments are the crucial issues for the clinical management of AD.
View Article and Find Full Text PDFVirulence
December 2025
School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China.
Harboring four transmembrane domains in their structural hallmark, Tetraspanins (Tspans) are a family of glycoproteins with pivotal functions in a variety of biological and cellular processes. Through interacting laterally with each other or specific membrane proteins, Tspans organize tetraspanin-enriched microdomains (TEMs), modulating cellular signaling, adhesion, fusion, and proliferation. An abundance of evidence has identified the multiple functions in the progression of cancer as well as the underlying molecular mechanisms.
View Article and Find Full Text PDFJ Transl Med
March 2025
Department of Geriatrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
Myocardial ischemia has the highest disease burden among all cardiovascular diseases making it a significant challenge to the global public health. It can result in myocardial cell damage and death due to impaired mitochondrial and endoplasmic reticulum (ER) functions. These two organelles are important regulators of cell death.
View Article and Find Full Text PDFBioessays
February 2025
Cell Adhesion Laboratory, UF Scripps, Jupiter, Florida, USA.
Talin, a key integrin activator, is essential for cellular adhesion, signal transduction, and mechanical stability. Its transition between autoinhibited and active conformations allows dynamic regulation of adhesion in response to environmental cues. Cholesterol-rich membrane microdomains, such as lipid rafts, organize and stabilize signaling platforms, influencing talin and integrin conformational states.
View Article and Find Full Text PDFNat Nanotechnol
February 2025
State Key Laboratory of Advanced Drug Delivery and Release Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China.
The nuclear envelope serves as a highly regulated gateway for macromolecule exchange between the nucleus and cytoplasm in eukaryotes. Here we have developed a cell nucleus-mimicking polymeric membrane-enclosed system for long and self-regulated therapy. A polymeric nano-membrane with nanopores is conformally synthesized in situ on the surface of each insulin crystal, ensuring sustained, adjustable and zero-order drug release kinetics.
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