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The growing interest in the role of microglia in the progression of many neurodegenerative diseases is developing in an ever-expedited manner, in part thanks to emergent new tools for studying the morphological and functional features of the CNS. The discovery of specific biomarkers of the microglia phenotype could find application in a wide range of human diseases, and creates opportunities for the discovery and development of tailored therapeutic interventions. Among these, recent studies highlight the pivotal role of the potassium channels in regulating microglial functions in physiological and pathological conditions such as Alzheimer's Disease, Parkinson's Disease, and Amyotrophic Lateral Sclerosis. In this review, we summarize the current knowledge of the involvement of the microglial potassium channels in several neurodegenerative diseases and their role as modulators of microglial homeostasis and dysfunction in CNS disorders.
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http://dx.doi.org/10.3390/biom11121774 | DOI Listing |
J Feline Med Surg
September 2025
Department for Small Animals, Veterinary Faculty, Leipzig University, Leipzig, Germany.
ObjectivesThe objective of this study was to evaluate the occurrence of voltage-gated potassium channel (VGKC) antibodies and the pattern of MRI changes in cats with complex partial seizures with orofacial involvement (CPSOFI), as well as to investigate whether there are factors influencing survival that could be used as prognostic markers in those cats.MethodsCats with CPSOFI were identified retrospectively. The following data were retrieved from the hospital database: signalment, age at first seizure and presentation, the presence of antibodies against VGKC (leucine-rich glioma inactivating factor 1 (LGI1), contactin-associated protein 2 (CASPR2)) and cerebrospinal fluid (CSF) analysis findings.
View Article and Find Full Text PDFJ Vet Med Sci
September 2025
Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Nippon Veterinary and Life Science University.
This study investigated the effects of soy isoflavone yeast fermented extract (soyF) and soy isoflavone yeast unfermented extract (soyN) on rat ileal smooth muscle contraction. SoyF and soyN inhibited carbachol (CCh)- or KCl-induced contraction in a concentration-dependent manner; however, these effects were stronger for CCh-induced contraction than that for KCl, and the relaxation effect was stronger for soyF than for soyN. SoyF-induced relaxation was attenuated by 4-aminopyridine (4-AP), a Kv channel inhibitor, and iberiotoxin (IbTX), a calcium-activated potassium channel (BK channel) inhibitor.
View Article and Find Full Text PDFBiomed Pharmacother
September 2025
Department and Graduate Institute of Pharmacology, College of Pharmacy, National Defense Medical University, Taipei, Taiwan; Department of Pharmacy Practice, Tri-Service General Hospital, National Defense Medical University, Taipei, Taiwan; School of Pharmacy, College of Pharmacy, National Defense M
Parkinson's disease (PD) is characterized by chronic neuroinflammation and progressive dopaminergic neurodegeneration, driven primarily by the activation of microglia and associated apoptotic pathways. The intermediate-conductance calcium-activated potassium channel KCNN4 has recently emerged as a potential therapeutic target, yet its role in chronic neurodegenerative conditions remains underexplored. In this study, we investigated whether pharmacological inhibition of KCNN4 using TRAM-34 can modulate both inflammatory and apoptotic responses in an LPS-induced mouse model of PD.
View Article and Find Full Text PDFSkeletal patterning relies on a complex network of molecular and genetic regulators. However, our understanding of pathways governing joint placement and morphogenesis remains incomplete. Prior studies in have demonstrated that medially located Cx43 mediated gap junctional intercellular communication (GJIC) inhibits joint formation by the adjacent lateral skeletal precursor cells, and thereby determines skeletal patterning in the teleost regenerating fin.
View Article and Find Full Text PDFJ Integr Plant Biol
September 2025
Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Science, Hunan Normal University, Changsha, 410081, China.
Hyperosmolality-triggered physiological drought hinders plant growth and development, leading to a drop in crop yields. Hyperosmolality triggers calcium signaling, and yet how osmotic-induced calcium signaling participates in cellular osmotic response remains enigmatic. To date, several Ca channels and transporters have been identified to regulate osmotic-induced calcium signal generation (CaSG) or Ca homeostasis.
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