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Cell biology is the discipline of biological sciences that studies the structure, physiology, growth, reproduction and death of cells. Research in cell biology uses microscopic and molecular tools and examines all cell types, from unicellular organisms such as protozoa to the specialised cells that consitutute multicellular organisms.
Targeted biologics delivery requires programming multicomponent protein nanomaterials to enable selective targeting and response to environment changes in a single unified framework. A novel protein nanoparticle platform has been designed to modulate cell-surface target specificity, cargo packaging, and pH-dependent release of encapsulated cargo, providing exciting possibilities in biologics delivery.
Ferroptosis, a cell death mechanism induced by lipid peroxidation, is pivotal in tumor suppression. A recent study shows that tumor repopulating cells evade ferroptosis and develop resistance to therapy via subverting a lipid metabolism enzyme.
Stabilization of a branch structure would intuitively suggest a direct connection between trunk and bough, but in actin filament networks, cortactin clamps the branching Arp2/3 complex to the daughter filament. This has fundamental consequences for mechanistic understanding of actin branch turnover and cortactin biology.
This Review discusses the role of AMPK in cancer cachexia and metabolic dysfunction, including discussion of how targeting AMPK might be an option to preserve muscle and adipose tissue mass.
The peroxisomal β-oxidation enzyme ACOX1 increases in liver with obesity, but the physiological significance is unclear. Here, the authors show that liver-specific knockout of Acox1 leads to accumulation of omega-3 VLCFAs that promote metabolic health through activation of GPR120 in adipose tissue.
The developmental fate of cells is regulated by the delicate environment created by the extracellular matrix. Here, authors investigate the impact of the full complement of conserved matrisome genes in germ cell development and gamete health in C. elegans.
Verheyen and Gottardi revisit two seminal papers by the Basler, Peifer and Clevers labs elucidating the role of nuclear β-catenin in Wnt signal transduction through its interaction with TCF at Wnt target genes.
Shigella, an important human pathogen, can secrete effector proteins to invade host cells and evade mechanisms of cell-autonomous immunity. In a new manuscript published in Nature Communications, Xian et al. report that the Shigella kinase effector OspG promotes the ubiquitination of septin cytoskeletal proteins to evade cage entrapment.