Postnatal Neuron Maturation
Postnatal Neuron Maturation - Related Videos
01:29
Studying Cell-Cell Interactions in Facilitating Neuronal Maturation
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2025
Astrocytes secrete signaling molecules that enhance the maturation and differentiation of stem cells into neurons and astrocytes.
05:08
Differentiation of a Human Neuroblastoma Cell Line into Mature Neurons
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2025
This video demonstrates a technique for transforming undifferentiated SH-SY5Y neuroblastoma cells into fully differentiated mature neurons using a systematic passaging technique. This involves culturing the cells in a series of media with gradually decreasing serum levels to inhibit the proliferation of epithelial-like cells while promoting the differentiation and proliferation of neuron-like cells. Additionally, the media is supplemented with retinoic acid and specific growth factors that...
10:41
An Organotypic Slice Assay for High-Resolution Time-Lapse Imaging of Neuronal Migration in the Postnatal Brain
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Cited by 6 •
2010
This protocol describes an organotypic slice assay optimized for the postnatal brain and high-resolution time-lapse imaging of neuroblast migration in the rostral migratory stream.
10:20
Single-cell Profiling of Developing and Mature Retinal Neurons
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Cited by 13 •
2012
A method for the isolation of single retinal cells and subsequent amplification of their cDNAs is described. Single-cell transcriptomics reveals the degree of cellular heterogeneity present in a tissue and uncovers new marker genes for rare cell populations. The accompanying protocol can be adjusted to suit many different cell types.
08:52
Organotypic Slice Cultures for Studies of Postnatal Neurogenesis
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Cited by 2 •
2015
Here we describe a technique for studying hippocampal postnatal neurogenesis using the organotypic slice culture technique. This method allows for in vitro manipulation of adult neurogenesis and allows for the direct application of pharmacological agents to the cultured hippocampus.
FAQs
Changing gene expression provides regulatory control for several maturation processes at once, including dendritic growth, synapse development and refinement, axonal myelination, and ion-channel composition. This coordination matters because structural and electrical features must develop together for neurons to participate effectively in circuits. Developmental studies therefore examine gene-expression changes alongside cellular structure and physiology rather than treating them as isolated events.
Neural activity and sensory experience help shape maturation after birth by influencing how neuronal connections develop and are refined. Their effects connect an organism’s experiences with changes in circuit connectivity, making maturation an activity-dependent process rather than a purely internally programmed sequence. This principle helps explain why the timing and context of postnatal development are important when studying emerging neural circuits.
These processes contribute different but interdependent aspects of neuronal function. Dendritic arborization affects the structure available for receiving signals, synapse formation and refinement adjust connectivity, and ion-channel composition influences electrical behavior. Considering them together gives a more complete assessment of maturation because a neuron may show structural development without yet displaying the physiological properties needed for effective signaling.
Axonal myelination serves as one structural indicator that postnatal neurons are progressing beyond an immature state. It should be interpreted with other maturation features, including dendritic organization, synaptic refinement, and ion-channel composition, because no single feature captures the full process. Tracking myelination alongside these properties can clarify whether developing neurons are acquiring coordinated structural and electrical characteristics.
Researchers can assess stem cell-derived neurons by examining both structural and physiological properties described for postnatal maturation. Relevant features include dendritic arborization, synapse formation and refinement, axonal myelination, ion-channel composition, and the resulting electrical behavior. Using several indicators provides a stronger evaluation than relying on appearance alone and helps determine whether the cells resemble appropriately developing neurons.
Timing matters because neural circuits emerge through sequential changes in connectivity and cellular properties, while activity and sensory experience continue shaping those changes after birth. Studying when maturation events occur can therefore clarify how functional circuits develop and how altered developmental schedules may relate to neurodevelopmental disorders or brain injury. It also provides context for interpreting maturation in experimental neuron models.