ArticleMolecular and cellular neurosciences2017
Taste bud-derived BDNF maintains innervation of a subset of TrkB-expressing gustatory nerve fibers.
Article in Molecular and cellular neurosciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed, 20 citations in OpenAlex.
- Ribosomal Profiling of the Geniculate Ganglion Identifies the Receptor ALK as Critical for the Development and Maintenance of Oral Sensory Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Article
- c-Kit signaling confers damage-resistance to sweet taste cells upon nerve injury.International journal of oral science · 2025Article
- Developing and regenerating a sense of taste.Current topics in developmental biology · 2025Review
- Deciphering Peripheral Taste Neuron Diversity: Using Genetic Identity to Bridge Taste Bud Innervation Patterns and Functional Responses.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
- Give-and-take of gustation: the interplay between gustatory neurons and taste buds.Chemical senses · 2024Review
- Rapid structural remodeling of peripheral taste neurons is independent of taste cell turnover.PLoS biology · 2023Article
- EGR4 is critical for cell-fate determination and phenotypic maintenance of geniculate ganglion neurons underlying sweet and umami taste.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- The BDNF/TrkB Neurotrophin System in the Sensory Organs of Zebrafish.International journal of molecular sciences · 2022Review
- Variable Branching Characteristics of Peripheral Taste Neurons Indicates Differential Convergence.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021Article
- Variation in taste ganglion neuron morphology: insights into taste function and plasticity.Current opinion in physiology · 2021Article
- Whole-Mount Staining, Visualization, and Analysis of Fungiform, Circumvallate, and Palate Taste Buds.Journal of visualized experiments : JoVE · 2021Article
- Cell non-autonomous requirement of p75 in the development of geniculate oral sensory neurons.Scientific reports · 2020Article
- Hedgehog Signaling Regulates Taste Organs and Oral Sensation: Distinctive Roles in the Epithelium, Stroma, and Innervation.International journal of molecular sciences · 2019Review
- TrkB expression and dependence divides gustatory neurons into three subpopulations.Neural development · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Taste receptor cells transduce different types of taste stimuli and transmit this information to gustatory neurons that carry it to the brain. Taste receptor cells turn over continuously in adulthood, requiring constant new innervation from nerve fibers. Therefore, the maintenance of innervation to taste buds is an active process mediated by many factors, including brain-derived neurotrophic factor (BDNF). Specifically, 40% of taste bud innervation is lost when Bdnf is removed during adulthood. Here we speculated that not all gustatory nerve fibers express the BDNF receptor, TrkB, resulting in subsets of neurons that vary in their response to BDNF. However, it is also possible that the partial loss of innervation occurred because the Bdnf gene was not effectively removed. To test these possibilities, we first determined that not all gustatory nerve fibers express the TrkB receptor in adult mice. We then verified the efficiency of Bdnf removal specifically in taste buds of K14-CreER:Bdnf mice and found that Bdnf expression was reduced to 1%, indicating efficient Bdnf gene recombination. BDNF removal resulted in a 55% loss of TrkB-expressing nerve fibers, which was greater than the loss of P2X3-positive fibers (39%), likely because taste buds were innervated by P2X3+/TrkB- fibers that were unaffected by BDNF removal. We conclude that gustatory innervation consists of both TrkB-positive and TrkB-negative taste fibers and that BDNF is specifically important for maintaining TrkB-positive innervation to taste buds. In addition, although taste bud size was not affected by inducible Bdnf removal, the expression of the γ subunit of the ENaC channel was reduced. So, BDNF may regulate expression of some molecular components of taste transduction pathways.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.