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The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.

An endogenous capsaicin-like substance with high potency at recombinant and native vanilloid VR1 receptors

Open access
Huang, Susan M., Bisogno, Tiziana, Trevisani, Marcello, Al-Hayani, Abdulmonem, De Petrocellis, Luciano, Fezza, Filomena, Tognetto, Michele, Petros, Timothy J., Krey, Jocelyn F., Chu, Constance J., Miller, Jeffrey D., Davies, Stephen N., Geppetti, Pierangelo, Walker, J. Michael, Di Marzo, Vincenzo·2002·Proceedings of the National Academy of Sciences

Abstract

The vanilloid receptor VR1 is a nonselective cation channel that is most abundant in peripheral sensory fibers but also is found in several brain nuclei. VR1 is gated by protons, heat, and the pungent ingredient of “hot” chili peppers, capsaicin. To date, no endogenous compound with potency at this receptor comparable to that of capsaicin has been identified. Here we examined the hypothesis, based on previous structure-activity relationship studies and the availability of biosynthetic precursors, that N -arachidonoyl-dopamine (NADA) is an endogenous “capsaicin-like” substance in mammalian nervous tissues. We found that NADA occurs in nervous tissues, with the highest concentrations being found in the striatum, hippocampus, and cerebellum and the lowest concentrations in the dorsal root ganglion. We also gained evidence for the existence of two possible routes for NADA biosynthesis and mechanisms for its inactivation in rat brain. NADA activates both human and rat VR1 overexpressed in human embryonic kidney (HEK)293 cells, with potency (EC 50 ≈ 50 nM) and efficacy similar to those of capsaicin. Furthermore, NADA potently activates native vanilloid receptors in neurons from rat dorsal root ganglion and hippocampus, thereby inducing the release of substance P and calcitonin gene-related peptide (CGRP) from dorsal spinal cord slices and enhancing hippocampal paired-pulse depression, respectively. Intradermal NADA also induces VR1-mediated thermal hyperalgesia (EC 50 = 1.5 ± 0.3 μg). Our data demonstrate the existence of a brain substance similar to capsaicin not only with respect to its chemical structure but also to its potency at VR1 receptors.

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Metadata

Authors
Huang, S. M., Bisogno, T., Trevisani, M., Al-Hayani, A., De Petrocellis, L., Fezza, F., Tognetto, M., Petros, T. J., Krey, J. F., Chu, C. J., Miller, J. D., Davies, S. N., Geppetti, P., Walker, J. M., & Di Marzo, V.
Venue
Proceedings of the National Academy of Sciences
Published
2002-06-11
Volume
99
Issue
12
Pages
8400-8405
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2085802434
Cited by
964
References
32
FWCI
25.67
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: An endogenous capsaicin-like substance with high potency at recombinant and native vanilloid VR1 receptors. https://app.cochat.ai/papers/10.1073/pnas.122196999
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Huang, S. M., Bisogno, T., Trevisani, M., Al-Hayani, A., De Petrocellis, L., Fezza, F., Tognetto, M., Petros, T. J., Krey, J. F., Chu, C. J., Miller, J. D., Davies, S. N., Geppetti, P., Walker, J. M., & Di Marzo, V. (2002). An endogenous capsaicin-like substance with high potency at recombinant and native vanilloid VR1 receptors. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.122196999

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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