論文 - 詳細
| RRC ID | 58458 |
|---|---|
| 著者 | Enomoto T, Nishida H, Iwata T, Fujita A, Nakayama K, Kashiwagi T, Hatanaka Y, Kondo H, Kajitani R, Itoh T, Ohmoto M, Matsumoto I, Hirota J. |
| タイトル | Bcl11b controls odorant receptor class choice in mice. |
| ジャーナル | Commun Biol |
| Abstract |
Each olfactory sensory neuron (OSN) expresses a single odorant receptor (OR) gene from the class I or class II repertoire in mice. The mechanisms that regulate OR class choice in OSNs remain unknown. Here, we show that the transcription factor Bcl11b determines the OR class to be expressed in OSNs. Both loss- and gain-of-function analyses demonstrate that class I is a default fate of OSNs and that Bcl11b dictates a class II OR choice by suppressing the effect of the J-element, a class I-OR enhancer. We further demonstrate that OSN-specific genetic manipulations of Bcl11b bias the OR class choice, generating mice with "class I-dominant" and "class II-dominant" noses, which display contrasting innate olfactory behaviors to two distinct aversive odorants. Overall, these findings reveal a unique transcriptional mechanism mediating a binary switch for OR class choice that is crucial to both the anatomical and functional organization of the olfactory system. |
| 巻・号 | 2 |
| ページ | 296 |
| 公開日 | 2019-8-7 |
| DOI | 10.1038/s42003-019-0536-x |
| PII | 536 |
| PMID | 31396576 |
| PMC | PMC6685970 |
| MeSH | Animals Behavior, Animal* Early Growth Response Protein 1 / metabolism Female Gene Expression Regulation, Developmental Male Mice, Inbred BALB C Mice, Knockout Odorants* Olfactory Bulb / metabolism* Olfactory Perception* Olfactory Receptor Neurons / metabolism* Receptors, Odorant / genetics Receptors, Odorant / metabolism Repressor Proteins / deficiency Repressor Proteins / genetics Repressor Proteins / metabolism* Signal Transduction Smell* Tumor Suppressor Proteins / deficiency Tumor Suppressor Proteins / genetics Tumor Suppressor Proteins / metabolism* Xenopus |
| IF | 4.165 |
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