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Homeostatic scaling of dynorphin signaling by a non-canonical opioid receptor

Author

Listed:
  • Xiaona Li

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology)

  • Nathan D. Winters

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology)

  • Shubhi Pandey

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology)

  • Colten Lankford

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology)

  • Hannah M. Stoveken

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology)

  • Emery Smith

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology)

  • Chu-Ting Chang

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology
    The Scripps Research Institute)

  • Stefano Zucca

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology)

  • Louis Scampavia

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology)

  • Timothy Spicer

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology)

  • Kirill A. Martemyanov

    (The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology
    The Scripps Research Institute)

Abstract

The endogenous opioid system provides powerful control over emotions, nociception, and motivation among many other fundamental nervous system functions. Its major components include a panel of opioid peptides that activate four canonical inhibitory opioid receptors. However, its regulatory principles are not fully understood including the existence of additional receptors and other elements. In this study we report the identification of a receptor for the opioid peptide dynorphin. By conducting a screen of a custom library of neuropeptides, we found that orphan receptor GPR139 binds to and is activated by a series of dynorphin peptides. Unlike other opioid receptors, GPR139 couples to Gq/11 and avoids β-arrestin, providing excitatory signaling that homeostatically scales the inhibitory response of neurons to dynorphin. This introduces a non-canonical dynorphin receptor as an essential component of the opioid system.

Suggested Citation

  • Xiaona Li & Nathan D. Winters & Shubhi Pandey & Colten Lankford & Hannah M. Stoveken & Emery Smith & Chu-Ting Chang & Stefano Zucca & Louis Scampavia & Timothy Spicer & Kirill A. Martemyanov, 2025. "Homeostatic scaling of dynorphin signaling by a non-canonical opioid receptor," Nature Communications, Nature, vol. 16(1), pages 1-16, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-62133-x
    DOI: 10.1038/s41467-025-62133-x
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    References listed on IDEAS

    as
    1. Punita Kumari & Ashish Srivastava & Ramanuj Banerjee & Eshan Ghosh & Pragya Gupta & Ravi Ranjan & Xin Chen & Bhagyashri Gupta & Charu Gupta & Deepika Jaiman & Arun K. Shukla, 2016. "Functional competence of a partially engaged GPCR–β-arrestin complex," Nature Communications, Nature, vol. 7(1), pages 1-16, December.
    2. Jie Yang & Derrick Cumberbatch & Samuel Centanni & Shu-qun Shi & Danny Winder & Donna Webb & Carl Hirschie Johnson, 2016. "Coupling optogenetic stimulation with NanoLuc-based luminescence (BRET) Ca++ sensing," Nature Communications, Nature, vol. 7(1), pages 1-10, December.
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