Ion channels are transmembrane proteins essential for cellular functions and are important drug targets. Surface plasmon resonance (SPR) is a powerful technique for investigating protein-protein and protein-small molecule ligand interactions. SPR has been underutilized for studies of ion channels, even though it could provide a wealth of information on the mechanisms of ion channel regulation and aid in ion channel drug discovery. Here we provide a detailed description of the use of SPR technology for investigating inter-domain interactions in KCNH potassium-selective and voltage-gated ion channels.
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http://dx.doi.org/10.1007/978-1-0716-3818-7_7 | DOI Listing |
Neurochem Res
January 2025
Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA.
The specific pathogeneses of schizophrenia (SCZ) remain an enigma despite extensive research that has implicated both genetic and environmental factors. Recent revelations that dysregulated immune system caused by glial cell overactivation result in neuroinflammation, a key player in neurodegenerative as well as neuropsychiatric disorders including SCZ are providing novel clues on potential therapeutic interventions. Here, we review the roles of glial cells (Dr.
View Article and Find Full Text PDFThe big potassium (BK) channels remain open with a small limiting probability of ∼ 10 at minimal Ca and negative voltages < -100 mV. The molecular origin and functional significance of such "intrinsic opening" are not understood. Here we combine atomistic simulations and electrophysiological experiments to show that the intrinsic opening of BK channels is an inherent property of the vapor barrier, generated by hydrophobic dewetting of the BK inner pore in the deactivated state.
View Article and Find Full Text PDFBackground And Purpose: Polycystins (PKD2, PKD2L1) are voltage-gated and Ca -modulated members of the transient receptor potential (TRP) family of ion channels. Loss of PKD2L1 expression results in seizure-susceptibility and autism-like features in mice, whereas variants in PKD2 cause autosomal dominant polycystic kidney disease. Despite decades of evidence clearly linking their dysfunction to human disease and demonstrating their physiological importance in the brain and kidneys, the polycystin pharmacophore remains undefined.
View Article and Find Full Text PDFFront Immunol
January 2025
Department of Pain Management, The State Key Specialty in Pain Medicine, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
Background: The nod-like receptor family pyrin domain-containing 3 (NLRP3) has been implicated in various skin diseases. However, its role in mediating 2, 4-dinitrofluorobenzene (DNFB)-induced chronic itch remains unclear.
Methods: Widetype () and deletion ( )mice, the expression of transient receptor potential (TRP) ankyrin 1 (TRPA1) inhibitor or recombinant mice interleukin-18 (IL-18) were used to establish and evaluate the severity of DNFB-mediated chronic itch.
Front Immunol
January 2025
Genentech, Inc., South San Francisco, CA, United States.
Objectives: This case series describes adults with aquaporin 4 immunoglobulin G-seropositive (AQP4-IgG+) neuromyelitis optica spectrum disorder (NMOSD) who switched treatment from eculizumab to satralizumab.
Methods: Case information for patients with AQP4-IgG+ NMOSD who received satralizumab for ≥6 months was obtained from US healthcare providers from April 2022 to January 2024. Patient characteristics, examination findings, diagnostic test results, treatment response, and adverse events were recorded.
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