Hippocampal Cajal Retzius Cells is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Cajal-Retzius (CR) cells are primitive cortical neurons that play crucial roles in brain development and have been implicated in neurodegenerative diseases.
Cajal-Retzius cells are among the first-generated neurons in the mammalian brain, originating from the cortical hem and meningeal compartments. They are primarily known for their role in cortical lamination via reelin secretion.
- Hippocampus: Located in the stratum lacunosum-moleculare of the hippocampus proper
- Dentate gyrus: Found in the molecular layer
- Entorhinal cortex: Scattered in layer I
- Neocortex: Predominantly in layer I
- Reelin (RELN) - primary secreted protein
- Calretinin (CALB2) - calcium binding protein
- p73 (TP73) - transcription factor
- Cdh2 (N-cadherin) - cell adhesion
- Reelin secretion: Essential for neuronal migration and cortical layer formation
- Synaptogenesis: Formation of excitatory synapses
- Dendritic development: Guide dendritic arborization
- Axon pathfinding: Direct callosal axons
- Synaptic plasticity: Modulation of long-term potentiation
- Memory formation: Role in hippocampal-dependent learning
- Sensorimotor integration: Integration of sensory information
- Early vulnerability: CR cells show degeneration in AD
- Reelin decline: Reduced reelin expression in AD brain
- Amyloid interaction: Aβ affects CR cell survival
- Tau pathology: CR cells accumulate tau aggregates
- Epilepsy: Altered CR cell function
- Schizophrenia: Implicated in developmental pathogenesis
- Aging: Progressive loss of CR cells
- Reelin supplementation: Gene therapy approaches
- CR cell transplantation: Cell replacement strategies
- Reelin mimetics: Small molecule activators
- Electrophysiology: Whole-cell patch clamp recordings
- Morphology: Golgi impregnation, dendritic reconstruction
- Molecular biology: Single-cell RNA sequencing
- Live imaging: Two-photon microscopy
- [[cell-types/hippocampal-c1-neurons]]
- [[cell-types/dentate-gyrus-granule-cells]]
- [[proteins/reelin]]
- [[diseases/alzheimers]]
The study of Hippocampal Cajal Retzius Cells 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.
- Soriano E, et al. (1991). Development of Cajal-Retzius cells in the mouse brain. J Comp Neurol.
- Lambert de Rouvroit C, et al. (1999). Reelin, the extracellular matrix protein deficient in reeler mutant mice. Adv Exp Med Biol.
- Chia PH, et al. (2013). A functional role for Cajal-Retzius neurons in the adult brain. Neural Dev.