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Updated: Apr 8, 2026
09:07
Genetic Manipulation of Cerebellar Granule Neurons In Vitro and In Vivo to Study Neuronal Morphology and Migration
Published on: March 17, 2014
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Regulation of dendrite morphogenesis by extrinsic cues
Pamela Valnegri1, Sidharth V Puram2, Azad Bonni1
1Department of Anatomy and Neurobiology, Washington University in St Louis School of Medicine, St Louis, MO 63110, USA; Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.
Trends in Neurosciences
|June 24, 2015
Summary
Extrinsic cues like growth factors and neuronal activity guide dendrite development, crucial for brain connectivity. Understanding these signals offers insights into neurodevelopmental disorders.
Area of Science:
- Neuroscience
- Developmental Biology
- Cell Biology
Background:
- Dendrites are vital for neuronal information processing and connectivity.
- Dendrite morphogenesis and maturation are critical for establishing neural circuits.
- Extrinsic cues significantly influence neuronal development.
Purpose of the Study:
- To review the role of extrinsic cues in dendrite development.
- To highlight the impact of these cues on intracellular mechanisms.
- To connect dendrite development to neuronal connectivity and neurodevelopmental disorders.
Main Methods:
- Literature review of recent studies on dendrite development.
- Analysis of the contribution of secreted factors, cell-contact proteins, and neuronal activity.
- Examination of intracellular signaling pathways involved in morphogenesis.
Main Results:
- Extrinsic cues, including polypeptide growth factors and contact-mediated proteins, are crucial for distinct phases of dendrite development.
- Neuronal activity also plays a significant role in shaping dendritic structures.
- These extrinsic factors modulate local and global intracellular mechanisms governing dendrite morphogenesis.
Conclusions:
- Extrinsic cues are essential regulators of dendrite development and neuronal connectivity.
- Understanding these developmental processes provides insights into the pathogenesis of neurodevelopmental disorders.
- This review synthesizes current knowledge on extrinsic influences on dendrite morphogenesis.
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