PMID- 30105301 OWN - NLM STAT- MEDLINE DCOM- 20190308 LR - 20190420 IS - 2373-2822 (Electronic) IS - 2373-2822 (Linking) VI - 5 IP - 4 DP - 2018 Jul-Aug TI - Sensory Adaptation to Chemical Cues by Vomeronasal Sensory Neurons. LID - 10.1523/ENEURO.0223-18.2018 [doi] LID - ENEURO.0223-18.2018 AB - Sensory adaptation is a source of experience-dependent feedback that impacts responses to environmental cues. In the mammalian main olfactory system (MOS), adaptation influences sensory coding at its earliest processing stages. Sensory adaptation in the accessory olfactory system (AOS) remains incompletely explored, leaving many aspects of the phenomenon unclear. We investigated sensory adaptation in vomeronasal sensory neurons (VSNs) using a combination of in situ Ca(2+) imaging and electrophysiology. Parallel studies revealed prominent short-term sensory adaptation in VSNs upon repeated stimulation with mouse urine and monomolecular bile acid ligands at interstimulus intervals (ISIs) less than 30 s. In such conditions, Ca(2+) signals and spike rates were often reduced by more than 50%, leading to dramatically reduced chemosensory sensitivity. Short-term adaptation was reversible over the course of minutes. Population Ca(2+) imaging experiments revealed the presence of a slower form of VSN adaptation that accumulated over dozens of stimulus presentations delivered over tens of minutes. Most VSNs showed strong adaptation, but in a substantial VSN subpopulation adaptation was diminished or absent. Investigation of same- and opposite-sex urine responses in male and female VSNs revealed that adaptation to same-sex cues occurred at ISIs up to 180 s, conditions that did not induce adaptation to opposite-sex cues. This result suggests that VSN sensory adaptation can be modulated by sensory experience. These studies comprehensively establish the presence of VSN sensory adaptation and provide a foundation for future inquiries into the molecular and cellular mechanisms of this phenomenon and its impact on mammalian behavior. FAU - Wong, Wen Mai AU - Wong WM AUID- ORCID: 0000-0001-6451-2812 AD - Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390. FAU - Nagel, Maximilian AU - Nagel M AD - Department of Chemosensation, Institute for Biology II, Rheinisch-Westfalische Technische Hochschule Aachen University, Aachen D-52074, Germany. FAU - Hernandez-Clavijo, Andres AU - Hernandez-Clavijo A AUID- ORCID: 0000-0002-4122-3521 AD - Neurobiology Group, SISSA, Scuola Internazionale Superiore di Studi Avanzati, Trieste 34136, Italy. FAU - Pifferi, Simone AU - Pifferi S AUID- ORCID: 0000-0002-3687-3984 AD - Neurobiology Group, SISSA, Scuola Internazionale Superiore di Studi Avanzati, Trieste 34136, Italy. FAU - Menini, Anna AU - Menini A AUID- ORCID: 0000-0001-9304-0412 AD - Neurobiology Group, SISSA, Scuola Internazionale Superiore di Studi Avanzati, Trieste 34136, Italy. FAU - Spehr, Marc AU - Spehr M AUID- ORCID: 0000-0001-6616-4196 AD - Department of Chemosensation, Institute for Biology II, Rheinisch-Westfalische Technische Hochschule Aachen University, Aachen D-52074, Germany. FAU - Meeks, Julian P AU - Meeks JP AUID- ORCID: 0000-0002-7537-4491 AD - Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390. LA - eng GR - R01 DC015784/DC/NIDCD NIH HHS/United States GR - R21 NS104826/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20180813 PL - United States TA - eNeuro JT - eNeuro JID - 101647362 RN - SY7Q814VUP (Calcium) SB - IM MH - Adaptation, Physiological/*physiology MH - Animals MH - Calcium/metabolism MH - Electrophysiological Phenomena/physiology MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Microscopy, Confocal MH - Sensory Receptor Cells/*physiology MH - Smell/*physiology MH - Vomeronasal Organ/*physiology PMC - PMC6088365 OTO - NOTNLM OT - adaptation OT - calcium imaging OT - chemical senses OT - electrophysiology OT - olfaction OT - vomeronasal system EDAT- 2018/08/15 06:00 MHDA- 2019/03/09 06:00 PMCR- 2018/08/13 CRDT- 2018/08/15 06:00 PHST- 2018/05/31 00:00 [received] PHST- 2018/07/13 00:00 [revised] PHST- 2018/07/18 00:00 [accepted] PHST- 2018/08/15 06:00 [entrez] PHST- 2018/08/15 06:00 [pubmed] PHST- 2019/03/09 06:00 [medline] PHST- 2018/08/13 00:00 [pmc-release] AID - eN-NWR-0223-18 [pii] AID - 10.1523/ENEURO.0223-18.2018 [doi] PST - epublish SO - eNeuro. 2018 Aug 13;5(4):ENEURO.0223-18.2018. doi: 10.1523/ENEURO.0223-18.2018. eCollection 2018 Jul-Aug.