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Angelova A, Tiveron MC, Loizeau MD, Cremer H, Platel JC. Effects of sensory deprivation on glomerular interneurons in the mouse olfactory bulb: differences in mortality and phenotypic adjustment of dopaminergic neurons. Front Cell Neurosci 2023; 17:1170170. [PMID: 37377778 PMCID: PMC10291083 DOI: 10.3389/fncel.2023.1170170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Neurogenesis persists in the mammalian subventricular zone after birth, producing various populations of olfactory bulb (OB) interneurons, including GABAergic and mixed dopaminergic/GABAergic (DA) neurons for the glomerular layer. While olfactory sensory activity is a major factor controlling the integration of new neurons, its impact on specific subtypes is not well understood. In this study we used genetic labeling of defined neuron subsets, in combination with reversible unilateral sensory deprivation and longitudinal in vivo imaging, to examine the behavior of postnatally born glomerular neurons. We find that a small fraction of GABAergic and of DA neurons die after 4 weeks of sensory deprivation while surviving DA-neurons exhibit a substantial decrease in tyrosine hydroxylase (TH) expression levels. Importantly, after reopening of the naris, cell death is arrested and TH levels go back to normal levels, indicating a specific adaptation to the level of sensory activity. We conclude that sensory deprivation induces adjustments in the population of glomerular neurons, involving both, cell death and adaptation of neurotransmitter use in specific neuron types. Our study highlights the dynamic nature of glomerular neurons in response to sensory deprivation and provide valuable insights into the plasticity and adaptability of the olfactory system.
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Fang A, Petentler K, Price A, Malloy S, Peterson M, Maddera L, Russell J, Treese M, Li H, Wang Y, McKinney S, Perera A, Yu CR. Identification and Localization of Cell Types in the Mouse Olfactory Bulb Using Slide-SeqV2. Methods Mol Biol 2023; 2710:171-183. [PMID: 37688732 PMCID: PMC11061798 DOI: 10.1007/978-1-0716-3425-7_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2023]
Abstract
Spatial transcriptomics maps RNA molecules to the location in a tissue where they are expressed. Here we document the use of Slide-SeqV2 to visualize gene expression in the mouse olfactory bulb (OB). This approach relies on spatially identified beads to locate and quantify individual transcripts. The expression profiles associated with the beads are used to identify and localize individual cell types in an unbiased manner. We demonstrate the various cell types and subtypes with distinct spatial locations in the olfactory bulb that are identified using Slide-SeqV2.
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Affiliation(s)
- Ai Fang
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | | | - Andrew Price
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | - Seth Malloy
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | | | - Lucinda Maddera
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | | | - McKenzie Treese
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | - Hua Li
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | - Yongfu Wang
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | - Sean McKinney
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | - Anoja Perera
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | - C Ron Yu
- Stowers Institute for Medical Research, Kansas City, MO, USA.
- Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS, USA.
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Coré N, Erni A, Hoffmann HM, Mellon PL, Saurin AJ, Beclin C, Cremer H. Stem cell regionalization during olfactory bulb neurogenesis depends on regulatory interactions between Vax1 and Pax6. eLife 2020; 9:58215. [PMID: 32762844 PMCID: PMC7440913 DOI: 10.7554/elife.58215] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/06/2020] [Indexed: 02/05/2023] Open
Abstract
Different subtypes of interneurons, destined for the olfactory bulb, are continuously generated by neural stem cells located in the ventricular and subventricular zones along the lateral forebrain ventricles of mice. Neuronal identity in the olfactory bulb depends on the existence of defined microdomains of pre-determined neural stem cells along the ventricle walls. The molecular mechanisms underlying positional identity of these neural stem cells are poorly understood. Here, we show that the transcription factor Vax1 controls the production of two specific neuronal subtypes. First, it is directly necessary to generate Calbindin expressing interneurons from ventro-lateral progenitors. Second, it represses the generation of dopaminergic neurons by dorsolateral progenitors through inhibition of Pax6 expression. We present data indicating that this repression occurs, at least in part, via activation of microRNA miR-7.
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Affiliation(s)
- Nathalie Coré
- Aix Marseille Univ, CNRS, IBDM, Campus de Luminy, Marseille, France
| | - Andrea Erni
- Aix Marseille Univ, CNRS, IBDM, Campus de Luminy, Marseille, France
| | - Hanne M Hoffmann
- Department of Obstetrics, Gynecology, and Reproductive Sciences and the Center for Reproductive Science and Medicine, University of California, San Diego, San Diego, United States
| | - Pamela L Mellon
- Department of Obstetrics, Gynecology, and Reproductive Sciences and the Center for Reproductive Science and Medicine, University of California, San Diego, San Diego, United States
| | - Andrew J Saurin
- Aix Marseille Univ, CNRS, IBDM, Campus de Luminy, Marseille, France
| | | | - Harold Cremer
- Aix Marseille Univ, CNRS, IBDM, Campus de Luminy, Marseille, France
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Wang F, Wu X, Gao J, Li Y, Zhu Y, Fang Y. The relationship of olfactory function and clinical traits in major depressive disorder. Behav Brain Res 2020; 386:112594. [PMID: 32194189 DOI: 10.1016/j.bbr.2020.112594] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/12/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
Abstract
People who have developed a good sense of smell could experience much more happiness and pleasure, which would trigger a discussion that olfactory disorder might correlate with the pathogenesis of major depressive disorder (MDD). Similar experiments conducted on rats have confirmed that nerve damage of olfactory pathway can induce a series of depression-like changes, including behavior, neurobiochemistry, and neuroimmunity. These changes will recover progressively with anti-depression treatment. While in similar studies on human beings, olfactory dysfunction has been found in people suffering from depression. This review briefly discusses the correlation between olfactory deficits and clinical traits of depression in different dimensions, such as the severity, duration and cognitive impairment of depression. Improving olfactory function may be expected to be a potential antidepressant therapy.
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Affiliation(s)
- Fang Wang
- Shanghai Yangpu Mental Health Center, Shanghai, 200093, China; Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Xiaohui Wu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Jerry Gao
- Yennora Public School, NSW, 2161, Australia
| | - Yongchao Li
- Shanghai Yangpu Mental Health Center, Shanghai, 200093, China
| | - Yuncheng Zhu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
| | - Yiru Fang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China; CAS Center for Excellence in Brain Science and Intelligence Technology, 200031, China; Shanghai Key Laboratory of Psychotic disorders, Shanghai, 201108, China.
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