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Wang N, Wang DD, Hou X, Li X, Shen Y. Different roles of Numb-p72 and Numb-p65 on the trafficking of metabotropic glutamate receptor 5. Mol Biol Rep 2021; 48:595-600. [PMID: 33394235 DOI: 10.1007/s11033-020-06103-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 12/18/2020] [Indexed: 10/22/2022]
Abstract
We previously reported that Numb, a protein localized to clathrin-coated vesicles, regulates the membrane expression of metabotropic glutamate receptor 5 (mGluR5) and is critical to social behaviors. However, the distinct actions of Numb isoforms on mGluR5 have not been investigated. Here, we showed that the expression patterns of Numb-p72 and Numb-p65, two important isoforms of Numb, were distinct in HEK293T cells. Numb-p72, but not Numb-p65, bound to mGluR5α, and enhanced mGluR5 membrane expression by inhibiting its internalization. Our results suggest that a complete structure is required for Numb to bind to mGluR5 and to modulate mGluR5 trafficking.
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Affiliation(s)
- Na Wang
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang, People's Republic of China.
| | - Dan-Dan Wang
- General Hospital of NingXia Medical University, Yinchuan, Ningxia, People's Republic of China
| | - Xiaolin Hou
- General Hospital of NingXia Medical University, Yinchuan, Ningxia, People's Republic of China
| | - Xiumao Li
- Department of Orthopedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China
| | - Ying Shen
- Department of Physiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China
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2
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Poe AJ, Kulkarni M, Leszczynska A, Tang J, Shah R, Jami-Alahmadi Y, Wang J, Kramerov AA, Wohlschlegel J, Punj V, Ljubimov AV, Saghizadeh M. Integrated Transcriptome and Proteome Analyses Reveal the Regulatory Role of miR-146a in Human Limbal Epithelium via Notch Signaling. Cells 2020; 9:cells9102175. [PMID: 32993109 PMCID: PMC7650592 DOI: 10.3390/cells9102175] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 02/06/2023] Open
Abstract
MiR-146a is upregulated in the stem cell-enriched limbal region vs. central human cornea and can mediate corneal epithelial wound healing. The aim of this study was to identify miR-146a targets in human primary limbal epithelial cells (LECs) using genomic and proteomic analyses. RNA-seq combined with quantitative proteomics based on multiplexed isobaric tandem mass tag labeling was performed in LECs transfected with miR-146a mimic vs. mimic control. Western blot and immunostaining were used to confirm the expression of some targeted genes/proteins. A total of 251 differentially expressed mRNAs and 163 proteins were identified. We found that miR-146a regulates the expression of multiple genes in different pathways, such as the Notch system. In LECs and organ-cultured corneas, miR-146a increased Notch-1 expression possibly by downregulating its inhibitor Numb, but decreased Notch-2. Integrated transcriptome and proteome analyses revealed the regulatory role of miR-146a in several other processes, including anchoring junctions, TNF-α, Hedgehog signaling, adherens junctions, TGF-β, mTORC2, and epidermal growth factor receptor (EGFR) signaling, which mediate wound healing, inflammation, and stem cell maintenance and differentiation. Our results provide insights into the regulatory network of miR-146a and its role in fine-tuning of Notch-1 and Notch-2 expressions in limbal epithelium, which could be a balancing factor in stem cell maintenance and differentiation.
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Affiliation(s)
- Adam J. Poe
- Board of Governors Regenerative Medicine Institute, Eye Program, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.J.P.); (M.K.); (A.L.); (R.S.); (J.W.); (A.A.K.); (A.V.L.)
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Mangesh Kulkarni
- Board of Governors Regenerative Medicine Institute, Eye Program, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.J.P.); (M.K.); (A.L.); (R.S.); (J.W.); (A.A.K.); (A.V.L.)
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Aleksandra Leszczynska
- Board of Governors Regenerative Medicine Institute, Eye Program, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.J.P.); (M.K.); (A.L.); (R.S.); (J.W.); (A.A.K.); (A.V.L.)
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Jie Tang
- Genomics Core, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA;
| | - Ruchi Shah
- Board of Governors Regenerative Medicine Institute, Eye Program, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.J.P.); (M.K.); (A.L.); (R.S.); (J.W.); (A.A.K.); (A.V.L.)
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Yasaman Jami-Alahmadi
- Department of Biological Chemistry, University of California, Los Angeles, CA 90095, USA; (Y.J.-A.); (J.W.)
| | - Jason Wang
- Board of Governors Regenerative Medicine Institute, Eye Program, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.J.P.); (M.K.); (A.L.); (R.S.); (J.W.); (A.A.K.); (A.V.L.)
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Andrei A. Kramerov
- Board of Governors Regenerative Medicine Institute, Eye Program, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.J.P.); (M.K.); (A.L.); (R.S.); (J.W.); (A.A.K.); (A.V.L.)
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - James Wohlschlegel
- Department of Biological Chemistry, University of California, Los Angeles, CA 90095, USA; (Y.J.-A.); (J.W.)
| | - Vasu Punj
- Department of Medicine, University of Southern California, Los Angeles, CA 90089, USA;
| | - Alexander V. Ljubimov
- Board of Governors Regenerative Medicine Institute, Eye Program, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.J.P.); (M.K.); (A.L.); (R.S.); (J.W.); (A.A.K.); (A.V.L.)
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Mehrnoosh Saghizadeh
- Board of Governors Regenerative Medicine Institute, Eye Program, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (A.J.P.); (M.K.); (A.L.); (R.S.); (J.W.); (A.A.K.); (A.V.L.)
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- Correspondence: ; Tel.: +1-310-248-8696
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Feng J, Wang J, Liu Q, Li J, Zhang Q, Zhuang Z, Yao X, Liu C, Li Y, Cao L, Li C, Gong L, Li D, Zhang Y, Gao H. DAPT, a γ-Secretase Inhibitor, Suppresses Tumorigenesis, and Progression of Growth Hormone-Producing Adenomas by Targeting Notch Signaling. Front Oncol 2019; 9:809. [PMID: 31508369 PMCID: PMC6718711 DOI: 10.3389/fonc.2019.00809] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 08/07/2019] [Indexed: 01/04/2023] Open
Abstract
Advances in the understanding of growth hormone-producing adenomas (GHomas) are ongoing, but current therapy is limited by moderate and variable efficacy and in need of life-long treatment. In this study, the molecular signaling pathway related to GHoma was investigated by proteomics and transcriptomics. The differentially expressed proteins and genes were significantly enriched in Extracellular Matrix-Receptor Interactions, Notch Signaling, Basal Cell Carcinoma Signaling, JAK-STAT3, Wnt Signaling, and Glioblastoma Multiforme Signaling by Ingenuity Pathway Analysis. Furthermore, the Notch2/Delta-like canonical Notch ligand (DLL) signaling pathway was identified to be associated with tumorigenesis and invasiveness of GHoma. In 76 patients, Notch2 and DLL3 were upregulated in invasive compared to those in non-invasive GHoma (p < 0.05). Disease-free survival was significantly longer in patients with low, compared with high, DLL3 expression (p = 0.027). Notch 2 knockdown inhibited cell migration in both GH3 cells and primary GHoma cells, along with downregulation of the mRNA expression of related genes. DAPT, a γ-secretase inhibitor, inhibited tumor growth and invasion in vivo and in vitro and suppressed the release of growth hormone in primary GHoma cells. The involvement of Notch2/DLL3 signaling in GHoma progression warrants additional study of Notch inhibitor, DAPT, as a potential GHoma treatment.
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Affiliation(s)
- Jie Feng
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Jianpeng Wang
- The Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
| | - Qian Liu
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Jiye Li
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Qi Zhang
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Zhengping Zhuang
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Xiaohui Yao
- Neurosurgery, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Chunhui Liu
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Yangfang Li
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Lei Cao
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Chuzhong Li
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Lei Gong
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Dan Li
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Yazhuo Zhang
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Hua Gao
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
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Wang N, Wang DD, Shen Y. Numb deficiency causes impaired trafficking of mGlu5 in neurons and autistic-like behaviors. Neurosci Lett 2019; 707:134291. [DOI: 10.1016/j.neulet.2019.134291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 05/07/2019] [Accepted: 05/22/2019] [Indexed: 11/29/2022]
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5
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Gruden' MA, Storozheva ZI, Ratmirov AM, Sherstnev VV. Pattern of Notch2, Numb, and Cas8 Gene Expression in Relevant Structures of the Rat Brain during Formation of Spatial Memory. Bull Exp Biol Med 2017; 163:785-788. [PMID: 29063319 DOI: 10.1007/s10517-017-3903-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Indexed: 01/16/2023]
Abstract
The expression of Notch2, Numb, and Cas8 genes, whose protein products are involved in regulation of neurogenesis/neuroapoptosis processes, was studied in the relevant cerebral structures of male Wistar rats trained in a spatial habit. The formation of long-term spatial memory was found to be associated with the formation of a specific pattern of transcription activity of the studied genes in different brain structures. The maximum expression of Notch2 gene was found in the hippocampus and cerebellum, the maximum expression of Numb was detected in the prefrontal cortex and cerebellum, and the maximum expression of Cas8 was revealed in the prefrontal cortex of trained animals.
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Affiliation(s)
- M A Gruden'
- P. K. Anokhin Research Institute of Physiology, Moscow, Russia.
| | - Z I Storozheva
- P. K. Anokhin Research Institute of Physiology, Moscow, Russia
| | - A M Ratmirov
- P. K. Anokhin Research Institute of Physiology, Moscow, Russia
| | - V V Sherstnev
- P. K. Anokhin Research Institute of Physiology, Moscow, Russia
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Deletion of Numb/Numblike in glutamatergic neurons leads to anxiety-like behavior in mice. Brain Res 2017; 1665:36-49. [PMID: 28347671 DOI: 10.1016/j.brainres.2017.02.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 11/28/2016] [Accepted: 02/21/2017] [Indexed: 02/05/2023]
Abstract
Endocytic adaptor protein Numb is the first identified cell fate determinant in Drosophila melanogaster. It has been implicated in Notch signaling pathway and regulation of neural stem cells proliferation in the central nervous system. Numb is also expressed in postmitotic neurons, in vitro studies showed that Numb is involved in neuronal morphologic development, such as neurite growth, axonal growth and spine development. However, in vivo functions of Numb in the postmitotic neurons are largely unknown. Here we show that deletion of Numb/Numblike in glutamatergic neurons causes anxiety-like behavior in mouse. In this study, we conditionally deleted Numb and its homologous gene Numblike in the glutamatergic neurons in dorsal forebrain, and thoroughly characterized the behavioral phenotypes of mutant mice. On a battery of tests for anxiety-like behavior, the conditional double knockout mice showed increased anxiety-like behavior on light/dark exploration and novel open field tests, but not on elevated zero maze tests. The conditional double knockout mice also displayed novelty induced hyperactivity in novel open field test. Control measures of general health, motor functions, startle response, sensorimotor gating, depression-related behaviors did not show differences between genotypes. Our present findings provide new insight into the indispensable functions of Numb/Numblike in the brain and behavior, and suggest that Numb/Numblike may play a role in mediating neuronal functions that underlie behaviors related to anxiety.
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7
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Transitional Progenitors during Vertebrate Retinogenesis. Mol Neurobiol 2016; 54:3565-3576. [PMID: 27194297 DOI: 10.1007/s12035-016-9899-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 05/03/2016] [Indexed: 12/13/2022]
Abstract
The retina is a delicate neural tissue responsible for light signal capturing, modulating, and passing to mid-brain. The brain then translated the signals into three-dimensional vision. The mature retina is composed of more than 50 subtypes of cells, all of which are developed from a pool of early multipotent retinal progenitors, which pass through sequential statuses of oligopotent, bipotent, and unipotent progenitors, and finally become terminally differentiated retinal cells. A transitional progenitor model is proposed here to describe how intrinsic developmental programs, along with environmental cues, control the step-by-step differentiation during retinogenesis. The model could elegantly explain many current findings as well as predict roles of intrinsic factors during retinal development.
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