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The region (101-112) of C1B domain in PKC gamma plays a crucial role in the activation of the enzyme and subsequent gap junction inhibition. Substitution studies on peptides correlating to the C1B region show that a flexible structure and ability to be phosphorylated on serine 109 are critical for this purpose.
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http://dx.doi.org/10.2174/092986610789909485 | DOI Listing |
Front Drug Deliv
September 2024
Palo Alto University, Palo Alto, CA, United States.
Psychotropics are currently developed and marketed with a limited understanding of their mechanism of action. The notion that protein kinase C (PKC) activity is highly relevant to learning and memory function stems from experiments in the 1980s, which associated protein kinase alpha (pka) and pkc to animal models of associative learning, opening an area of exploration for psychotropic development. The PKC family consists of several isoforms, including PKC alpha, beta1, beta1, gamma, delta and epsilon among others.
View Article and Find Full Text PDFExp Neurol
November 2025
Anatomical Institute, Department of Biomedicine, University of Basel, Basel CH-4056, Switzerland.
The formation and proper organization of synaptic connections in the Purkinje cell dendritic tree are essential for cerebellar function and are often disrupted in cerebellar diseases, particularly in spinocerebellar ataxia (SCA). In this study, we utilized two distinct mouse models of SCA14, a subtype of SCA caused by point mutations in the protein kinase C gamma (PKCγ) gene, which plays an important role in regulating the dendritic architecture in Purkinje cells. We investigated the development of Purkinje cell dendritic spines in organotypic slice cultures from control, PKCγ knockout (PKCγ-KO) mice, and the two SCA14 models to further elucidate the role of PKCγ activity in dendritic spine formation.
View Article and Find Full Text PDFSci Transl Med
June 2025
Department of Anaesthesia and Intensive Care, Chinese University of Hong Kong, Hong Kong SAR 999077, China.
Microglial activation is linked to neuroinflammation in neuropathic pain. Recently, microglia-mediated synaptic pruning has received mounting attention. However, the exact role of spinal microglia in modulating neuropathic pain-associated neural circuits remains unclear.
View Article and Find Full Text PDFInt J Mol Sci
April 2025
Institute of Anatomy, Department of Biomedicine, University of Basel, 4056 Basel, Switzerland.
Spinocerebellar ataxia (SCA), an autosomal dominant neurodegenerative condition, is marked by a gradual deterioration of cerebellar function. To date, more than 40 distinct SCA subtypes have been identified, with some attributed to CAG repeat expansions and others to point mutations or deletions. Among these, spinocerebellar ataxia type 14 (SCA14) stems from missense mutations or deletions within the gene, encoding protein kinase C gamma (PKCγ), a pivotal signaling molecule abundant in Purkinje cells.
View Article and Find Full Text PDFJ Neuroinflammation
April 2025
Department of Orthopedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.
The persistence of myelin debris after spinal cord injury (SCI) constitutes a formidable barrier to axonal regeneration, remyelination, and functional recovery by initiating inflammatory cascades. Microglia, known for their superior phagocytic and degradative capabilities, are crucial in clearing myelin debris. Yet, the molecular mechanisms governing their function remain elusive.
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