BDNF and Trigeminal Axon Growth in Xenopus
Author Information
Author(s): Jeffrey K Huang, Karel Dorey, Shoko Ishibashi, Enrique Amaya
Primary Institution: Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge
Hypothesis
Does BDNF function as a target recognition signal for mandibular trigeminal axons in Xenopus?
Conclusion
BDNF is necessary for the proper innervation of trigeminal axons into the cement gland in Xenopus embryos.
Supporting Evidence
- BDNF mRNA is enriched in the cement gland during trigeminal nerve innervation.
- Knockdown of BDNF resulted in failure of trigeminal axons to arborise in the cement gland.
- BDNF expressed in grafts promoted trigeminal axon arborisation in vivo.
- Trigeminal axons in BDNF morphants did not grow into the cement gland.
- Wildtype cement glands rescued trigeminal axon targeting in BDNF morphants.
Takeaway
BDNF helps nerve cells grow and connect to the right places in developing tadpoles.
Methodology
The study used morpholino oligonucleotides to knock down BDNF expression and assessed the effects on trigeminal axon targeting through various experimental setups.
Limitations
The study primarily focused on BDNF and did not explore the potential roles of other neurotrophins in detail.
Participant Demographics
Xenopus embryos, specifically X. laevis and X. tropicalis.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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