Vasoactive Intestinal Peptide Interneurons plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
Vasoactive intestinal peptide (VIP+) interneurons are a distinct class of cortical inhibitory neurons that primarily target other interneurons, providing disinhibition that enables circuit plasticity, attention, and learning. These neurons constitute approximately 10-15% of cortical interneurons and play crucial roles in regulating the excitation-inhibition balance in a manner distinct from parvalbumin (PV+) or somatostatin (SST+) interneurons[1].
In neurodegenerative diseases, VIP+ interneuron dysfunction contributes to cognitive deficits, particularly in memory formation and attention, which are early hallmarks of Alzheimer's disease (AD) and related dementias[2].
VIP+ interneurons express a characteristic genetic profile:
VIP+ interneurons display distinctive morphological features:
Bipolar Interneurons
Morphological Subtypes
VIP+ interneurons exhibit heterogeneous firing properties:
VIP+ interneurons uniquely target other inhibitory neurons:
The disinhibitory function of VIP+ cells enables:
Attention and Salience
Learning and Plasticity
Motor Control
VIP+ interneurons provide "disinhibition" by inhibiting inhibitory neurons:
Circuit Logic
Behavioral Relevance
VIP+ interneuron dysfunction contributes to AD cognitive deficits:
Circuit Dysfunction
Molecular Mechanisms
Therapeutic Implications
VIP+ cells in PD:
Motor Circuit Effects
Non-Motor Symptoms
VIP+ dysfunction relates to mood disorders:
Stress Response
Therapeutic Relevance
VIP+ alterations:
VIP Receptor Agonists
Modulatory Strategies
Optogenetics
Chemogenetics
VIP+ neuronal markers:
iPSC-derived neurons: Patient-specific models
Postmortem tissue: Anatomical studies
VIP antibodies: Autoimmune encephalitis research
[Cell Types Indexcell-types)cell-types)
Disinhibition
Attention Mechanisms
Vasoactive Intestinal Peptide Interneurons plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
The study of Vasoactive Intestinal Peptide Interneurons has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Rudy B, et al. Three groups of interneurons in the neocortex. Progress in Brain Research. 2011. 2011. ↩︎
Palop JJ, Mucke L. Network abnormalities and interneuron dysfunction in Alzheimer disease. Nature Reviews Neuroscience. 2016. 2016. ↩︎
Bayraktar T, et al. VIP-expressing interneurons in the neocortex. Cerebral Cortex. 2000. 2000. ↩︎
Gabbott PL, et al. Localisation of VIP and Cck in rat cerebral cortex. Journal of Comparative Neurology. 1986. 1986. ↩︎
Tricoire L, et al. A blueprint for the spatiotemporal origins of mouse hippocampal interneuron diversity. Journal of Neuroscience. 2011. 2011. ↩︎
Kawaguchi Y, Kubota Y. Correlation of physiological subgroupings of nonpyramidal cells with parvalbumin- and calbindinD28k-immunoreactive neurons in layer V of rat frontal cortex. Journal of Neurophysiology. 1993. 1993. ↩︎
Stamatakis AM, et al. Lateral hypothalamic area neurotensin and VIP neurons. Journal of Comparative Neurology. 2010. 2010. ↩︎
Kawaguchi Y, Kondo S. Parvalbumin, somatostatin and cholecystokinin as chemical markers. Journal of Comparative Neurology. 2002. 2002. ↩︎
Jackman SL, et al. VIP+ interneurons control optokinetic eye movements. Current Biology. 2016. 2016. ↩︎
Pfeffer CK, et al. Inhibition of inhibition by VIP+ interneurons. Nature Neuroscience. 2013. 2013. ↩︎
Karnani MM, et al. Opening holes in the blanket of inhibition. Nature Neuroscience. 2013. 2013. ↩︎
Fu Y, et al. A cortical circuit for gain control by behavioral state. Cell. 2014. 2014. ↩︎
Lee S, et al. Visual cortex requires VIP+ disinhibition. Nature Neuroscience. 2013. 2013. ↩︎
Palop JJ, et al. Aberrant excitatory network activity in Alzheimer's disease mouse model. Nature Neuroscience. 2013. 2013. ↩︎
Habyanino M, et al. VIP and stress: The role in depression. Journal of Affective Disorders. 2012. 2012. ↩︎
Guthrie PJ, et al. VIP receptor agonists as potential therapeutics. Current Drug Targets. 2010. 2010. ↩︎
Madisen L, et al. A robust and high-throughput Cre reporting and characterization system. Nature Neuroscience. 2010. 2010. ↩︎