{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T03:08:05Z","timestamp":1791515285279,"version":"4.3.4"},"reference-count":77,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100018556","name":"Suzhou Science and Technology Project","doi-asserted-by":"crossref","award":["SKY2022079"],"award-info":[{"award-number":["SKY2022079"]}],"id":[{"id":"10.13039\/501100018556","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Postgraduate Research Practice Innovation Program of Jiangsu Province","award":["KYCX23_3445"],"award-info":[{"award-number":["KYCX23_3445"]}]},{"name":"Capital Medical University Electric Power Teaching Hospital Science and Technology Program","award":["Y2022013"],"award-info":[{"award-number":["Y2022013"]}]},{"name":"Capital Medical University Electric Power Teaching Hospital Science and Technology Program","award":["Y2022015"],"award-info":[{"award-number":["Y2022015"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["82101305"],"award-info":[{"award-number":["82101305"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["82171229"],"award-info":[{"award-number":["82171229"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Kunshan Science and Technology Development Fund","award":["KS2311"],"award-info":[{"award-number":["KS2311"]}]},{"name":"Natural Science Foundation of Jiangsu Province of China","award":["BK20210839"],"award-info":[{"award-number":["BK20210839"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Mol Pain"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:p>\n                    Cadaverine is an endogenous metabolite produced by the gut microbiome with various activity in physiological and pathological conditions. However, whether cadaverine regulates pain or itch remains unclear. In this study, we first found that cadaverine may bind to histamine 4 receptor (H4R) with higher docking energy score using molecular docking simulations, suggesting cadaverine may act as an endogenous ligand for H4R. We subsequently found intradermal injection of cadaverine into the nape or cheek of mice induces a dose-dependent scratching response in mice, which was suppressed by a selective H4R antagonist JNJ-7777120, transient receptor potential vanilloid 1 (TRPV1) antagonist capsazepine and PLC inhibitor U73122, but not H1R antagonist or TRPA1 antagonist or TRPV4 antagonist. Consistently, cadaverine-induced itch was abolished in Trpv1\n                    <jats:sup>\u2212\/\u2212<\/jats:sup>\n                    but not Trpa1\n                    <jats:sup>\u2212\/\u2212<\/jats:sup>\n                    mice. Pharmacological analysis indicated that mast cells and opioid receptors were also involved in cadaverine-induced itch in mice. scRNA-Seq data analysis showed that H4R and TRPV1 are mainly co-expressed on NP2, NP3 and PEP1 DRG neurons. Calcium imaging analysis showed that cadaverine perfusion enhanced calcium influx in the dissociated dorsal root ganglion (DRG) neurons, which was suppressed by JNJ-7777120 and capsazepine, as well as in the DRG neurons from Trpv1\n                    <jats:sup>\u2212\/\u2212<\/jats:sup>\n                    mice. Patch-clamp recordings found that cadaverine perfusion significantly increased the excitability of small diameter DRG neurons, and JNJ-7777120 abolished this effect, indicating involvement of H4R. Together, these results provide evidences that cadaverine is a novel endogenous pruritogens, which activates H4R\/TRPV1 signaling pathways in the primary sensory neurons.\n                  <\/jats:p>","DOI":"10.1177\/17448069241272149","type":"journal-article","created":{"date-parts":[[2024,7,30]],"date-time":"2024-07-30T23:06:10Z","timestamp":1722380770000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Histamine H4 receptor and TRPV1 mediate itch induced by cadaverine, a metabolite of the microbiome"],"prefix":"10.1177","volume":"20","author":[{"given":"Shi-Yu","family":"Sun","sequence":"first","affiliation":[{"name":"Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xi","family":"Yin","sequence":"additional","affiliation":[{"name":"Institute of Pain Medicine and Special Environmental 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