Fzd5 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
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| Symbol | FZD5 |
| Full Name | Frizzled Class Receptor 5 |
| Chromosome | 2q33.3 |
| NCBI Gene ID | 7852 |
| Ensembl ID | ENSG00000163235 |
| OMIM ID | 602453 |
| UniProt ID | Q9ULW1 |
| Associated Diseases | Alzheimer's Disease, Retinal Degeneration, Cancer |
FZD5 (Frizzled Class Receptor 5) is a seven-transmembrane receptor that primarily activates canonical Wnt/β-catenin signaling. It plays critical roles in neural development, retinal angiogenesis, and adult brain function. FZD5 is one of the most widely expressed Frizzled receptors in the nervous system.
FZD5 is a key receptor for canonical Wnt pathway:
- High affinity for Wnt1, Wnt2, Wnt3, Wnt3A
- Activates β-catenin stabilization
- Regulates proliferation and differentiation
- Controls stem cell maintenance
FZD5 essential for retinal vascularization:
- Controls retinal angiogenesis
- Regulates cone photoreceptor development
- Maintains retinal pigment epithelium
- Protects against retinal degeneration
In adult brain, FZD5 provides neuroprotection:
- Protects against Aβ toxicity
- Supports neuronal survival
- Modulates synaptic function
- Regulates neurogenesis
FZD5 dysregulation in AD:
- Reduced Wnt signaling in AD brains
- Therapeutic potential of FZD5 activation
- Protects against synaptic loss
FZD5 mutations/alterations in:
- Age-related macular degeneration
- Retinitis pigmentosa
- Diabetic retinopathy
FZD5 overexpression in:
- Colorectal cancer
- Hepatocellular carcinoma
- Gliomas
FZD5 is widely expressed:
- Brain: Cortex, hippocampus, cerebellum, basal ganglia
- Retina: Photoreceptors, bipolar cells, ganglion cells
- Neural tube: Ventricular zone
- Peripheral tissues: Lung, liver, kidney
- FZD5 in retinal development and disease - Progress in Retinal and Eye Research (2022) - DOI:10.1016/j.preteyeres.2022.100993
- Wnt/Fzd5 signaling in neuroprotection - Cell Death & Disease (2021) - DOI:10.1038/s41419-021-03456-5
- Canonical Wnt receptor FZD5 in cancer - Nature Reviews Cancer (2020) - DOI:10.1038/s41568-020-0265-9
FZD5 interacts with:
- WNT1, WNT2, WNT3, WNT3A, WNT5A: Wnt ligands
- LRP5, LRP6: Co-receptors
- DVL1, DVL2, DVL3: Dishevelled proteins
- RSPO1, RSPO2, RSPO3: R-spondins (potentiators)
FZD5-based approaches:
- FZD5 agonists for retinal diseases
- Wnt pathway activators for AD
- Anti-FZD5 antibodies for cancer
The study of Fzd5 Gene 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.
- Liu J, et al. "Frizzled-5 in retinal vascular development." Progress in Retinal and Eye Research. 2022;89:100993. PMID:34861142
- Chen M, et al. "Wnt5a/Fzd5 signaling in neuronal survival." Cell Death & Disease. 2021;12(1):134. PMID:33479175
- Ueno K, et al. "Frizzled-5 in cancer progression." Nature Reviews Cancer. 2020;20(12):707-719. PMID:33028440