Plasma proteins conformational changes

Plasma proteins conformational changes refer to the structural alterations—ranging from subtle shifts in secondary structure to complete misfolding and aggregation—that occur in proteins circulating in the blood. These changes are central to the pathogenesis of various proteopathies, where proteins like transthyretin (TTR), fibrinogen, or light chains lose their native functional state and form toxic amyloid deposits in tissues [2, 3]. In healthy physiology, the native conformation is essential for roles such as transport, enzymatic activity, and osmotic pressure maintenance; however, mutations, aging, or environmental stressors can trigger transitions into pathological isoforms [4, 5]. In drug development, this phenomenon is often the 'target' of kinetic stabilizers, such as Tafamidis, which bind to the native protein to prevent its dissociation and subsequent misfolding [1]. Furthermore, understanding these conformational changes is critical for assessing the biocompatibility of nanoparticles and drugs, as unintended structural alterations can lead to immune activation or loss of therapeutic efficacy [5].

Other names

Protein misfoldingProtein denaturationProtein aggregationProteopathyPathological protein conformationPlasma protein dyshomeostasis

Kinetic stabilization of native protein states; prevention of tetramer dissociation; inhibition of protein aggregation; RNA interference to reduce protein synthesis.