| Title: | Notch signaling determines cell-fate specification of the two main types of vomeronasal neurons of rodents |
| Author(s): | Katreddi RR; Taroc EZM; Hicks SM; Lin JM; Liu S; Xiang M; Forni PE; |
| Address: | "Department of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA. The RNA Institute , University at Albany, State University of New York, Albany, NY 12222, USA. The Center for Neuroscience Research , University at Albany, State University of New York, Albany, NY 12222, USA. State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China" |
| ISSN/ISBN: | 1477-9129 (Electronic) 0950-1991 (Print) 0950-1991 (Linking) |
| Abstract: | "The ability of terrestrial vertebrates to find food and mating partners, and to avoid predators, relies on the detection of chemosensory information. Semiochemicals responsible for social and sexual behaviors are detected by chemosensory neurons of the vomeronasal organ (VNO), which transmits information to the accessory olfactory bulb. The vomeronasal sensory epithelium of most mammalian species contains a uniform vomeronasal system; however, rodents and marsupials have developed a more complex binary vomeronasal system, containing vomeronasal sensory neurons (VSNs) expressing receptors of either the V1R or V2R family. In rodents, V1R/apical and V2R/basal VSNs originate from a common pool of progenitors. Using single cell RNA-sequencing, we identified differential expression of Notch1 receptor and Dll4 ligand between the neuronal precursors at the VSN differentiation dichotomy. Our experiments show that Notch signaling is required for effective differentiation of V2R/basal VSNs. In fact, Notch1 loss of function in neuronal progenitors diverts them to the V1R/apical fate, whereas Notch1 gain of function redirects precursors to V2R/basal. Our results indicate that Notch signaling plays a pivotal role in triggering the binary differentiation dichotomy in the VNO of rodents" |
| Keywords: | Animals Cell Differentiation/genetics Olfactory Bulb/metabolism *Rodentia Sensory Receptor Cells/metabolism *Vomeronasal Organ/metabolism Dll4 Mouse Neuronal dichotomy Neuronal differentiation Notch signaling Single cell RNA sequencing Vomeronasal organ;neuroscience; |
| Notes: | "MedlineKatreddi, Raghu Ram Taroc, Ed Zandro M Hicks, Sawyer M Lin, Jennifer M Liu, Shuting Xiang, Mengqing Forni, Paolo E eng R01 DC017149/DC/NIDCD NIH HHS/ R01 HD097331/HD/NICHD NIH HHS/ Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't England 2022/07/06 Development. 2022 Jul 1; 149(13):dev200448. doi: 10.1242/dev.200448. Epub 2022 Jul 4" |
