Related Experiment Video
Updated: Jun 25, 2026

06:14
Modeling Human Cerebellar Development In Vitro in 2D Structure
Published on: September 16, 2022
SHH pathway and cerebellar development
Catherine Vaillant1, Denis Monard
1Developmental Genetics, Department Biomedicine, University of Basel, CH-4058 Basel, Switzerland.
Cerebellum (London, England)
|February 19, 2009
Summary
Sonic hedgehog (SHH) is crucial for cerebellar development, regulating granular cell expansion and affecting glia and neurons. Understanding SHH pathways offers insights into pediatric brain disorders and potential therapies.
Area of Science:
- Neuroscience
- Developmental Biology
- Molecular Biology
Background:
- Sonic hedgehog (SHH) is a key morphogenetic factor in cerebellar development.
- SHH signaling regulates the expansion of granular cells, the brain's largest neuronal population.
- SHH influences Bergmann glia and potentially Purkinje cell homeostasis.
Purpose of the Study:
- To review recent advances in understanding SHH's role in cerebellar development.
- To explore SHH's involvement in cerebellar pathology.
- To highlight the therapeutic potential of SHH pathway regulators.
Main Methods:
- Literature review of recent research on SHH in cerebellar development.
- Analysis of SHH's upstream mechanisms and downstream targets.
- Examination of SHH's role in pediatric neurological disorders.
Main Results:
- SHH is essential for cerebellar cortex patterning and granular cell proliferation.
- SHH signaling impacts glial differentiation and neuronal homeostasis.
- Understanding SHH pathways illuminates mechanisms of congenital ataxia and tumorigenesis.
Conclusions:
- SHH is a master regulator of cerebellar development and a potential therapeutic target.
- Advances in SHH research offer insights into pediatric brain disorders.
- SHH pathway regulators show promise for clinical applications in neurological conditions.
Related Concept Videos
Major Somatic Sensory Pathways
Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the posterior columns...
Hedgehog Signaling Pathway
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
Hedgehog Signaling Pathway
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
Cerebellum: Anatomical Regions
The cerebellum, also known as the "little brain," is located in the posterior cranial fossa, inferior to the tentorium cerebelli and dorsal to the brainstem. It plays a significant role in motor control, coordination, and proprioception.
Cerebellar Structure
Externally, the cerebellum features a highly convoluted surface with numerous folia (narrow ridges) separated by shallow sulci (grooves). The cerebellum is divided into two hemispheres by a thin median structure known as the vermis. The...
Cerebellar Structure
Externally, the cerebellum features a highly convoluted surface with numerous folia (narrow ridges) separated by shallow sulci (grooves). The cerebellum is divided into two hemispheres by a thin median structure known as the vermis. The...
Indirect Motor Pathways
The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
Parkinson Disease ll: Pathophysiology
Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...

