Understanding excitation and inhibition balance in the brain begins with the tale of two basic types of neurons, glutamatergic projection neurons and GABAergic interneurons. The diversity of cortical interneurons is contributed by multiple origins in the ventral forebrain, various tangential migration routes, and complicated regulations of intrinsic factors, extrinsic signals, and activities. Abnormalities of interneuron development lead to dysfunction of interneurons and inhibitory circuits, which are highly associated with neurodevelopmental disorders including schizophrenia, autism spectrum disorders, and intellectual disability. In this review, we mainly discuss recent findings on the development of cortical interneuron and on neurodevelopmental disorders related to interneuron dysfunction.
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http://dx.doi.org/10.1111/febs.15872 | DOI Listing |
J Am Chem Soc
March 2025
State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
To realize human-machine fusion, a hybrid neural pathway operating in the same modality with biological systems becomes imperative, which requires an interneuron unit to encode information in biorecognizable spike sequences and tune the frequency upon excitatory and inhibitory neurotransmitters. Existing artificial interneurons cannot encode information upon different neurotransmitters, and the activation threshold and frequency responsivity do not align with those of biological counterparts, leading to limited success in constructing a signal-harmonizing hybrid neural pathway for neuroprosthetics, neurorehabilitation, and other neuroelectronic applications. Herein, we develop a bipolar-chemosynapse interneuron to encode the spike frequency in a highly bionic paradigm.
View Article and Find Full Text PDFInt J Mol Sci
February 2025
Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates.
A substantial body of research suggests that early-life stress (ELS) is associated with neuropathology in adulthood. Maternal deprivation (MD) is a commonly utilised model in mice for the study of specific neurological diseases. The appropriate growth of dendrites is essential for the optimal functioning of the nervous system.
View Article and Find Full Text PDFSomatosens Mot Res
March 2025
Department of Neuroscience, Queens College, City University of New York (CUNY), New York, NY, USA.
Perineuronal nets (PNNs) are specialised extracellular matrix structures of the central nervous system that predominantly surround inhibitory interneurons. The development of PNNs is activity dependent and relies on sensory input to mature to an adult expression pattern, coinciding with the crysallization of synaptic circuitry following the closure of the developmental critical period. Our results of a neocortical characterisation demonstrate that the density of PNNs in the neocortex of the Long Evans rat was consistent across animals but varied as a function of the cortical region.
View Article and Find Full Text PDFDevelopment
March 2025
Department of Molecular, Cellular, and Biomedical Sciences, College of Life Sciences and Agriculture, University of New Hampshire, Durham, NH 03824, USA.
Currently, not much is known about neuronal positioning and the roles of primary cilia in postnatal neurodevelopment. We show that primary cilia of principal neurons undergo marked changes in positioning and orientation, concurrent with postnatal neuron positioning in the mouse cerebral cortex. Primary cilia of early- and late-born principal neurons in compact layers display opposite orientations, while neuronal primary cilia in loose laminae are predominantly oriented toward the pia.
View Article and Find Full Text PDFBrain Struct Funct
March 2025
The School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, 4072, Australia.
The Hippo signalling cascade is an evolutionarily conserved pathway critical for the development of numerous organ systems and is required for the development of many parts of the mammalian nervous system, including the cerebellum. The Hippo pathway converges, via the nuclear YAP/TAZ co-transcription factors, on transcription factors of the TEA Domain (TEAD) family (TEAD1-4) and promotes the expression of pro-proliferative genes. Despite the importance of TEAD function, our understanding of spatial and temporal expression of this family is limited, as is our understanding of which TEAD family members regulate Hippo-dependent organ development.
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