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Mochizuki M, Shibuya-Takahashi R, Kanno SI, Adachi S, Fujimori H, Nakazato A, Fujii K, Morita S, Saijoh S, Yamazaki T, Imai T, Asada Y, Yamaguchi K, Yasuda J, Shindo N, Sugamura K, Tamai K. CD271 mRNA/hnRNPA2B1 complex promotes proliferation and stemness in oral and head and neck squamous cell carcinoma. Cancer Sci 2024; 115:2346-2359. [PMID: 38710200 DOI: 10.1111/cas.16187] [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] [Received: 10/17/2023] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 05/08/2024] Open
Abstract
RNAs, such as noncoding RNA, microRNA, and recently mRNA, have been recognized as signal transduction molecules. CD271, also known as nerve growth factor receptor, has a critical role in cancer, although the precise mechanism is still unclear. Here, we show that CD271 mRNA, but not CD271 protein, facilitates spheroid cell proliferation. We established CD271-/- cells lacking both mRNA and protein of CD271, as well as CD271 protein knockout cells lacking only CD271 protein, from hypopharyngeal and oral squamous cell carcinoma lines. Sphere formation was reduced in CD271-/- cells but not in CD271 protein knockout cells. Mutated CD271 mRNA, which is not translated to a protein, promoted sphere formation. CD271 mRNA bound to hnRNPA2B1 protein at the 3'-UTR region, and the inhibition of this interaction reduced sphere formation. In surgical specimens, the CD271 mRNA/protein expression ratio was higher in the cancerous area than in the noncancerous area. These data suggest CD271 mRNA has dual functions, encompassing protein-coding and noncoding roles, with its noncoding RNA function being predominant in oral and head and neck squamous cell carcinoma.
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Affiliation(s)
- Mai Mochizuki
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Rie Shibuya-Takahashi
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Shin-Ichiro Kanno
- IDAC Fellow Research Group for DNA Repair and Dynamic Proteome Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan
| | - Shungo Adachi
- Molecular Profiling Research Center for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Tokyo, Japan
- Department of Proteomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Haruna Fujimori
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Akira Nakazato
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Keitaro Fujii
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Shinkichi Morita
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
- Department of Head and Neck Surgery, Miyagi Cancer Center, Natori, Japan
| | - Satoshi Saijoh
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Tomoko Yamazaki
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Takayuki Imai
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
- Department of Head and Neck Surgery, Miyagi Cancer Center, Natori, Japan
| | - Yukinori Asada
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
- Department of Head and Neck Surgery, Miyagi Cancer Center, Natori, Japan
| | - Kazunori Yamaguchi
- Molecular and Cellular Oncology, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Jun Yasuda
- Molecular and Cellular Oncology, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Norihisa Shindo
- Cancer Chromosome Biology Unit, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Kazuo Sugamura
- Molecular and Cellular Oncology, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Keiichi Tamai
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Japan
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2
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Giri RK. Molecular signatures in prion disease: altered death receptor pathways in a mouse model. J Transl Med 2024; 22:503. [PMID: 38802941 PMCID: PMC11129387 DOI: 10.1186/s12967-024-05121-x] [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] [Received: 12/02/2023] [Accepted: 03/20/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Prion diseases are transmissible and fatal neurodegenerative diseases characterized by accumulation of misfolded prion protein isoform (PrPSc), astrocytosis, microgliosis, spongiosis, and neurodegeneration. Elevated levels of cell membrane associated PrPSc protein and inflammatory cytokines hint towards the activation of death receptor (DR) pathway/s in prion diseases. Activation of DRs regulate, either cell survival or apoptosis, autophagy and necroptosis based on the adaptors they interact. Very little is known about the DR pathways activation in prion disease. DR3 and DR5 that are expressed in normal mouse brain were never studied in prion disease, so also their ligands and any DR adaptors. This research gap is notable and investigated in the present study. METHODS C57BL/6J mice were infected with Rocky Mountain Laboratory scrapie mouse prion strain. The progression of prion disease was examined by observing morphological and behavioural abnormalities. The levels of PrP isoforms and GFAP were measured as the marker of PrPSc accumulation and astrocytosis respectively using antibody-based techniques that detect proteins on blot and brain section. The levels of DRs, their glycosylation and ectodomain shedding, and associated factors warrant their examination at protein level, hence western blot analysis was employed in this study. RESULTS Prion-infected mice developed motor deficits and neuropathology like PrPSc accumulation and astrocytosis similar to other prion diseases. Results from this research show higher expression of all DR ligands, TNFR1, Fas and p75NTR but decreased levels DR3 and DR5. The levels of DR adaptor proteins like TRADD and TRAF2 (primarily regulate pro-survival pathways) are reduced. FADD, which primarily regulate cell death, its level remains unchanged. RIPK1, which regulate pro-survival, apoptosis and necroptosis, its expression and proteolysis (inhibits necroptosis but activates apoptosis) are increased. CONCLUSIONS The findings from the present study provide evidence towards the involvement of DR3, DR5, DR6, TL1A, TRAIL, TRADD, TRAF2, FADD and RIPK1 for the first time in prion diseases. The knowledge obtained from this research discuss the possible impacts of these 16 differentially expressed DR factors on our understanding towards the multifaceted neuropathology of prion diseases and towards future explorations into potential targeted therapeutic interventions for prion disease specific neuropathology.
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Affiliation(s)
- Ranjit Kumar Giri
- Molecular and Cellular Neuroscience Division, National Brain Research Centre, Manesar, Gurgaon, Haryana, 122052, India.
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Jourdi G, Fleury S, Boukhatem I, Lordkipanidzé M. Soluble p75 neurotrophic receptor as a reliable biomarker in neurodegenerative diseases: what is the evidence? Neural Regen Res 2024; 19:536-541. [PMID: 37721281 PMCID: PMC10581574 DOI: 10.4103/1673-5374.380873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/27/2023] [Accepted: 06/13/2023] [Indexed: 09/19/2023] Open
Abstract
Neurodegenerative diseases are often misdiagnosed, especially when the diagnosis is based solely on clinical symptoms. The p75 neurotrophic receptor (p75NTR) has been studied as an index of sensory and motor nerve development and maturation. Its cleavable extracellular domain (ECD) is readily detectable in various biological fluids including plasma, serum and urine. There is evidence for increased p75NTR ECD levels in neurodegenerative diseases such as Alzheimer's disease, amyotrophic lateral sclerosis, age-related dementia, schizophrenia, and diabetic neuropathy. Whether p75NTR ECD could be used as a biomarker for diagnosis and/or prognosis in these disorders, and whether it could potentially lead to the development of targeted therapies, remains an open question. In this review, we present and discuss published studies that have evaluated the relevance of this emerging biomarker in the context of various neurodegenerative diseases. We also highlight areas that require further investigation to better understand the role of p75NTR ECD in the clinical diagnosis and management of neurodegenerative disorders.
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Affiliation(s)
- Georges Jourdi
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
- Université Paris Cité, INSERM, Innovative Therapies in Haemostasis, Paris, France
- Service d’Hématologie Biologique, AP-HP, Hôpital Lariboisière, Paris, France
| | - Samuel Fleury
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Imane Boukhatem
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Marie Lordkipanidzé
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
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Myoen S, Mochizuki M, Shibuya-Takahashi R, Fujimori H, Shindo N, Yamaguchi K, Yasuda J, Abe J, Imai T, Sato I, Adachi H, Kawamura S, Ito A, Tamai K. CD271 promotes proliferation and migration in bladder cancer. Genes Cells 2024; 29:73-85. [PMID: 38016691 DOI: 10.1111/gtc.13087] [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] [Received: 10/02/2023] [Revised: 11/08/2023] [Accepted: 11/15/2023] [Indexed: 11/30/2023]
Abstract
Bladder cancer is a urothelial cancer and effective therapeutic strategies for its advanced stages are limited. Here, we report that CD271, a neurotrophin receptor, promotes the proliferation and migration of bladder cancer cells. CD271 knockdown decreased proliferation in both adherent and spheroid cultures, and vice versa when CD271 was overexpressed in bladder cancer cell lines. CD271 depletion impaired tumorigenicity in vivo. Migration activity was reduced by CD271 knockdown and TAT-Pep5, a known CD271-Rho GDI-binding inhibitor. Apoptosis was induced by CD271 knockdown. Comprehensive gene expression analysis revealed alterations in E2F- and Myc-related pathways upon CD271 expression. In clinical cases, patients with high CD271 expression showed significantly shortened overall survival. In surgically resected specimens, pERK, a known player in proliferation signaling, colocalizes with CD271. These data indicate that CD271 is involved in bladder cancer malignancy by promoting cell proliferation and migration, resulting in poor prognosis.
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Affiliation(s)
- Shingo Myoen
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Miyagi, Japan
- Division of Urology, Miyagi Cancer Center, Natori, Miyagi, Japan
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Mai Mochizuki
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Miyagi, Japan
| | - Rie Shibuya-Takahashi
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Miyagi, Japan
| | - Haruna Fujimori
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Miyagi, Japan
| | - Norihisa Shindo
- Division of Molecular and Cellular Oncology, Miyagi Cancer Center Research Institute, Natori, Miyagi, Japan
| | - Kazunori Yamaguchi
- Division of Molecular and Cellular Oncology, Miyagi Cancer Center Research Institute, Natori, Miyagi, Japan
| | - Jun Yasuda
- Division of Molecular and Cellular Oncology, Miyagi Cancer Center Research Institute, Natori, Miyagi, Japan
| | - Jiro Abe
- Division of Thoracic Surgery, Miyagi Cancer Center, Natori, Miyagi, Japan
| | - Takayuki Imai
- Division of Head and Neck Surgery, Miyagi Cancer Center, Natori, Miyagi, Japan
| | - Ikuro Sato
- Division of Pathology, Miyagi Cancer Center, Natori, Miyagi, Japan
| | - Hisanobu Adachi
- Division of Urology, Miyagi Cancer Center, Natori, Miyagi, Japan
| | | | - Akihiro Ito
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Keiichi Tamai
- Division of Cancer Stem Cell, Miyagi Cancer Center Research Institute, Natori, Miyagi, Japan
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5
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Mirzahosseini G, Adam JM, Nasoohi S, El-Remessy AB, Ishrat T. Lost in Translation: Neurotrophins Biology and Function in the Neurovascular Unit. Neuroscientist 2023; 29:694-714. [PMID: 35769016 DOI: 10.1177/10738584221104982] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The neurovascular unit (NVU) refers to the functional building unit of the brain and the retina, where neurons, glia, and microvasculature orchestrate to meet the demand of the retina's and brain's function. Neurotrophins (NTs) are structural families of secreted proteins and are known for exerting neurotrophic effects on neuronal differentiation, survival, neurite outgrowth, synaptic formation, and plasticity. NTs include several molecules, such as nerve growth factor, brain-derived neurotrophic factor, NT-3, NT-4, and their precursors. Furthermore, NTs are involved in signaling pathways such as inflammation, apoptosis, and angiogenesis in a nonneuronal cell type. Interestingly, NTs and the precursors can bind and activate the p75 neurotrophin receptor (p75NTR) at low and high affinity. Mature NTs bind their cognate tropomyosin/tyrosine-regulated kinase receptors, crucial for maintenance and neuronal development in the brain and retina axis. Activation of p75NTR results in neuronal apoptosis and cell death, while tropomysin receptor kinase upregulation contributes to differentiation and cell growth. Recent findings indicate that modulation of NTs and their receptors contribute to neurovascular dysfunction in the NVU. Several chronic metabolic and acute ischemic diseases affect the NVU, including diabetic and ischemic retinopathy for the retina, as well as stroke, acute encephalitis, and traumatic brain injury for the brain. This work aims to review the current evidence through published literature studying the impact of NTs and their receptors, including the p75NTR receptor, on the injured and healthy brain-retina axis.
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Affiliation(s)
- Golnoush Mirzahosseini
- Department of Anatomy and Neurobiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Justin Mark Adam
- Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Sanaz Nasoohi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Tauheed Ishrat
- Department of Anatomy and Neurobiology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
- Neuroscience Institute, University of Tennessee Health Science Center, Memphis, TN, USA
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6
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Albini M, Krawczun-Rygmaczewska A, Cesca F. Astrocytes and brain-derived neurotrophic factor (BDNF). Neurosci Res 2023; 197:42-51. [PMID: 36780947 DOI: 10.1016/j.neures.2023.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/17/2023] [Accepted: 02/02/2023] [Indexed: 02/13/2023]
Abstract
Astrocytes are emerging in the neuroscience field as crucial modulators of brain functions, from the molecular control of synaptic plasticity to orchestrating brain-wide circuit activity for cognitive processes. The cellular pathways through which astrocytes modulate neuronal activity and plasticity are quite diverse. In this review, we focus on neurotrophic pathways, mostly those mediated by brain-derived neurotrophic factor (BDNF). Neurotrophins are a well-known family of trophic factors with pleiotropic functions in neuronal survival, maturation and activity. Within the brain, BDNF is the most abundantly expressed and most studied of all neurotrophins. While we have detailed knowledge of the effect of BDNF on neurons, much less is known about its physiology on astroglia. However, over the last years new findings emerged demonstrating that astrocytes take an active part into BDNF physiology. In this work, we discuss the state-of-the-art knowledge about astrocytes and BDNF. Indeed, astrocytes sense extracellular BDNF through its specific TrkB receptors and activate intracellular responses that greatly vary depending on the brain area, stage of development and receptors expressed. Astrocytes also uptake and recycle BDNF / proBDNF at synapses contributing to synaptic plasticity. Finally, experimental evidence is now available describing deficits in astrocytic BDNF in several neuropathologies, suggesting that astrocytic BDNF may represent a promising target for clinical translation.
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Affiliation(s)
- Martina Albini
- Department of Experimental Medicine, University of Genova, Italy; IIT Center for Synaptic Neuroscience and Technology, Genova, Italy
| | - Alicja Krawczun-Rygmaczewska
- IIT Center for Synaptic Neuroscience and Technology, Genova, Italy; Department of Life Sciences, University of Trieste, Italy
| | - Fabrizia Cesca
- IIT Center for Synaptic Neuroscience and Technology, Genova, Italy; Department of Life Sciences, University of Trieste, Italy.
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7
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Papadopoulou MA, Rogdakis T, Charou D, Peteinareli M, Ntarntani K, Gravanis A, Chanoumidou K, Charalampopoulos I. Neurotrophin Analog ENT-A044 Activates the p75 Neurotrophin Receptor, Regulating Neuronal Survival in a Cell Context-Dependent Manner. Int J Mol Sci 2023; 24:11683. [PMID: 37511441 PMCID: PMC10380564 DOI: 10.3390/ijms241411683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Neuronal cell fate is predominantly controlled based on the effects of growth factors, such as neurotrophins, and the activation of a variety of signaling pathways acting through neurotrophin receptors, namely Trk and p75 (p75NTR). Despite their beneficial effects on brain function, their therapeutic use is compromised due to their polypeptidic nature and blood-brain-barrier impermeability. To overcome these limitations, our previous studies have proven that DHEA-derived synthetic analogs can act like neurotrophins, as they lack endocrine side effects. The present study focuses on the biological characterization of a newly synthesized analog, ENT-A044, and its role in inducing cell-specific functions of p75NTR. We show that ENT-A044 can induce cell death and phosphorylation of JNK protein by activating p75NTR. Additionally, ENT-A044 can induce the phosphorylation of TrkB receptor, indicating that our molecule can activate both neurotrophin receptors, enabling the protection of neuronal populations that express both receptors. Furthermore, the present study demonstrates, for the first time, the expression of p75NTR in human-induced Pluripotent Stem Cells-derived Neural Progenitor Cells (hiPSC-derived NPCs) and receptor-dependent cell death induced via ENT-A044 treatment. In conclusion, ENT-A044 is proposed as a lead molecule for the development of novel pharmacological agents, providing new therapeutic approaches and research tools, by controlling p75NTR actions.
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Affiliation(s)
- Maria Anna Papadopoulou
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Thanasis Rogdakis
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Despoina Charou
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Maria Peteinareli
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Katerina Ntarntani
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Achille Gravanis
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Konstantina Chanoumidou
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
| | - Ioannis Charalampopoulos
- Department of Pharmacology, Medical School, University of Crete, 71003 Heraklion, Greece
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
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8
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Siddiqui T, Cosacak MI, Popova S, Bhattarai P, Yilmaz E, Lee AJ, Min Y, Wang X, Allen M, İş Ö, Atasavum ZT, Rodriguez-Muela N, Vardarajan BN, Flaherty D, Teich AF, Santa-Maria I, Freudenberg U, Werner C, Tosto G, Mayeux R, Ertekin-Taner N, Kizil C. Nerve growth factor receptor (Ngfr) induces neurogenic plasticity by suppressing reactive astroglial Lcn2/Slc22a17 signaling in Alzheimer's disease. NPJ Regen Med 2023; 8:33. [PMID: 37429840 DOI: 10.1038/s41536-023-00311-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 06/27/2023] [Indexed: 07/12/2023] Open
Abstract
Neurogenesis, crucial for brain resilience, is reduced in Alzheimer's disease (AD) that induces astroglial reactivity at the expense of the pro-neurogenic potential, and restoring neurogenesis could counteract neurodegenerative pathology. However, the molecular mechanisms promoting pro-neurogenic astroglial fate despite AD pathology are unknown. In this study, we used APP/PS1dE9 mouse model and induced Nerve growth factor receptor (Ngfr) expression in the hippocampus. Ngfr, which promotes neurogenic fate of astroglia during the amyloid pathology-induced neuroregeneration in zebrafish brain, stimulated proliferative and neurogenic outcomes. Histological analyses of the changes in proliferation and neurogenesis, single-cell transcriptomics, spatial proteomics, and functional knockdown studies showed that the induced expression of Ngfr reduced the reactive astrocyte marker Lipocalin-2 (Lcn2), which we found was sufficient to reduce neurogenesis in astroglia. Anti-neurogenic effects of Lcn2 was mediated by Slc22a17, blockage of which recapitulated the pro-neurogenicity by Ngfr. Long-term Ngfr expression reduced amyloid plaques and Tau phosphorylation. Postmortem human AD hippocampi and 3D human astroglial cultures showed elevated LCN2 levels correlate with reactive gliosis and reduced neurogenesis. Comparing transcriptional changes in mouse, zebrafish, and human AD brains for cell intrinsic differential gene expression and weighted gene co-expression networks revealed common altered downstream effectors of NGFR signaling, such as PFKP, which can enhance proliferation and neurogenesis in vitro when blocked. Our study suggests that the reactive non-neurogenic astroglia in AD can be coaxed to a pro-neurogenic fate and AD pathology can be alleviated with Ngfr. We suggest that enhancing pro-neurogenic astroglial fate may have therapeutic ramifications in AD.
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Affiliation(s)
- Tohid Siddiqui
- German Center for Neurodegenerative Diseases (DZNE) within Helmholtz Association, 01307, Dresden, Germany
| | - Mehmet Ilyas Cosacak
- German Center for Neurodegenerative Diseases (DZNE) within Helmholtz Association, 01307, Dresden, Germany
| | - Stanislava Popova
- German Center for Neurodegenerative Diseases (DZNE) within Helmholtz Association, 01307, Dresden, Germany
- Neuron D GmbH, Tatzberg 47, 01307, Dresden, Germany
| | - Prabesh Bhattarai
- German Center for Neurodegenerative Diseases (DZNE) within Helmholtz Association, 01307, Dresden, Germany
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Elanur Yilmaz
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Annie J Lee
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA
- The Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY, 10032, USA
| | - Yuhao Min
- Department of Neuroscience, Mayo Clinic Florida, Jacksonville, FL, 32224, USA
| | - Xue Wang
- Department of Quantitative Health Sciences, Mayo Clinic Florida, Jacksonville, FL, 32224, USA
| | - Mariet Allen
- Department of Neuroscience, Mayo Clinic Florida, Jacksonville, FL, 32224, USA
| | - Özkan İş
- Department of Neuroscience, Mayo Clinic Florida, Jacksonville, FL, 32224, USA
| | - Zeynep Tansu Atasavum
- German Center for Neurodegenerative Diseases (DZNE) within Helmholtz Association, 01307, Dresden, Germany
| | - Natalia Rodriguez-Muela
- German Center for Neurodegenerative Diseases (DZNE) within Helmholtz Association, 01307, Dresden, Germany
| | - Badri N Vardarajan
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA
- The Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY, 10032, USA
| | - Delaney Flaherty
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Andrew F Teich
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Ismael Santa-Maria
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Edificio E, 28223, Pozuelo de Alarcon, Madrid, Spain
| | - Uwe Freudenberg
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, D-01069, Dresden, Germany
| | - Carsten Werner
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, D-01069, Dresden, Germany
- Cluster of Excellence Physics of Life, TU Dresden, D-01307, Dresden, Germany
| | - Giuseppe Tosto
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA
- The Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY, 10032, USA
| | - Richard Mayeux
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, 10032, USA
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA
- The Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY, 10032, USA
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, 1051 Riverside Drive, New York, NY, 10032, USA
| | - Nilüfer Ertekin-Taner
- Department of Neuroscience, Mayo Clinic Florida, Jacksonville, FL, 32224, USA
- Department of Neurology, Mayo Clinic Florida, Jacksonville, FL, 32224, USA
| | - Caghan Kizil
- German Center for Neurodegenerative Diseases (DZNE) within Helmholtz Association, 01307, Dresden, Germany.
- Department of Neurology, Columbia University Irving Medical Center, New York, NY, 10032, USA.
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, 10032, USA.
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9
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Numakawa T, Kajihara R. Neurotrophins and Other Growth Factors in the Pathogenesis of Alzheimer’s Disease. Life (Basel) 2023; 13:life13030647. [PMID: 36983803 PMCID: PMC10051261 DOI: 10.3390/life13030647] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/12/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
The involvement of the changed expression/function of neurotrophic factors in the pathogenesis of neurodegenerative diseases, including Alzheimer’s disease (AD), has been suggested. AD is one of the age-related dementias, and is characterized by cognitive impairment with decreased memory function. Developing evidence demonstrates that decreased cell survival, synaptic dysfunction, and reduced neurogenesis are involved in the pathogenesis of AD. On the other hand, it is well known that neurotrophic factors, especially brain-derived neurotrophic factor (BDNF) and its high-affinity receptor TrkB, have multiple roles in the central nervous system (CNS), including neuronal maintenance, synaptic plasticity, and neurogenesis, which are closely linked to learning and memory function. Thus, many investigations regarding therapeutic approaches to AD, and/or the screening of novel drug candidates for its treatment, focus on upregulation of the BDNF/TrkB system. Furthermore, current studies also demonstrate that GDNF, IGF1, and bFGF, which play roles in neuroprotection, are associated with AD. In this review, we introduce data demonstrating close relationships between the pathogenesis of AD, neurotrophic factors, and drug candidates, including natural compounds that upregulate the BDNF-mediated neurotrophic system.
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Affiliation(s)
- Tadahiro Numakawa
- Department of Cell Modulation, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto 860-0811, Japan
- Correspondence:
| | - Ryutaro Kajihara
- Department of Biomedical Laboratory Sciences, Faculty of Life Science, Kumamoto University, Kumamoto 862-0976, Japan
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10
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The Nerve Growth Factor Receptor (NGFR/p75 NTR): A Major Player in Alzheimer's Disease. Int J Mol Sci 2023; 24:ijms24043200. [PMID: 36834612 PMCID: PMC9965628 DOI: 10.3390/ijms24043200] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023] Open
Abstract
Alzheimer's disease (AD) represents the most prevalent type of dementia in elderly people, primarily characterized by brain accumulation of beta-amyloid (Aβ) peptides, derived from Amyloid Precursor Protein (APP), in the extracellular space (amyloid plaques) and intracellular deposits of the hyperphosphorylated form of the protein tau (p-tau; tangles or neurofibrillary aggregates). The Nerve growth factor receptor (NGFR/p75NTR) represents a low-affinity receptor for all known mammalians neurotrophins (i.e., proNGF, NGF, BDNF, NT-3 e NT-4/5) and it is involved in pathways that determine both survival and death of neurons. Interestingly, also Aβ peptides can blind to NGFR/p75NTR making it the "ideal" candidate in mediating Aβ-induced neuropathology. In addition to pathogenesis and neuropathology, several data indicated that NGFR/p75NTR could play a key role in AD also from a genetic perspective. Other studies suggested that NGFR/p75NTR could represent a good diagnostic tool, as well as a promising therapeutic target for AD. Here, we comprehensively summarize and review the current experimental evidence on this topic.
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11
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Xie N, Chu SN, Schultz CB, Chan SSK. Efficient Muscle Regeneration by Human PSC-Derived CD82 + ERBB3 + NGFR + Skeletal Myogenic Progenitors. Cells 2023; 12:cells12030362. [PMID: 36766703 PMCID: PMC9913306 DOI: 10.3390/cells12030362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/06/2023] [Accepted: 01/12/2023] [Indexed: 01/20/2023] Open
Abstract
Differentiation of pluripotent stem cells (PSCs) is a promising approach to obtaining large quantities of skeletal myogenic progenitors for disease modeling and cell-based therapy. However, generating skeletal myogenic cells with high regenerative potential is still challenging. We recently reported that skeletal myogenic progenitors generated from mouse PSC-derived teratomas possess robust regenerative potency. We have also found that teratomas derived from human PSCs contain a skeletal myogenic population. Here, we showed that these human PSC-derived skeletal myogenic progenitors had exceptional engraftability. A combination of cell surface markers, CD82, ERBB3, and NGFR enabled efficient purification of skeletal myogenic progenitors. These cells expressed PAX7 and were able to differentiate into MHC+ multinucleated myotubes. We further discovered that these cells are expandable in vitro. Upon transplantation, the expanded cells formed new dystrophin+ fibers that reconstituted almost ¾ of the total muscle volume, and repopulated the muscle stem cell pool. Our study, therefore, demonstrates the possibility of producing large quantities of engraftable skeletal myogenic cells from human PSCs.
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Affiliation(s)
- Ning Xie
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Sabrina N. Chu
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455, USA
| | | | - Sunny S. K. Chan
- Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455, USA
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA
- Lillehei Heart Institute, University of Minnesota, Minneapolis, MN 55455, USA
- Correspondence: ; Tel.: +1-612-301-2187
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12
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Xiong LL, Chen L, Deng IB, Zhou XF, Wang TH. P75 neurotrophin receptor as a therapeutic target for drug development to treat neurological diseases. Eur J Neurosci 2022; 56:5299-5318. [PMID: 36017737 DOI: 10.1111/ejn.15810] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/11/2022] [Accepted: 08/23/2022] [Indexed: 12/14/2022]
Abstract
The interaction of neurotrophins with their receptors is involved in the pathogenesis and progression of various neurological diseases, including Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, spinal cord injury and acute and chronic cerebral damage. The p75 neurotrophin receptor (p75NTR) plays a pivotal role in the development of neurological dysfunctions as a result of its high expression, abnormal processing and signalling. Therefore, p75NTR represents as a vital therapeutic target for the treatment of neurodegeneration, neuropsychiatric disorders and cerebrovascular insufficiency. This review summarizes the current research progress on the p75NTR signalling in neurological deficits. We also summarize the present therapeutic approaches by genetically and pharmacologically targeting p75NTR for the attenuation of pathological changes. Based on the evolving knowledge, the role of p75NTR in the regulation of tau hyperphosphorylation, Aβ metabolism, the degeneration of motor neurons and dopaminergic neurons has been discussed. Its position as a biomarker to evaluate the severity of diseases and as a druggable target for drug development has also been elucidated. Several prototype small molecule compounds were introduced to be crucial in neuronal survival and functional recovery via targeting p75NTR. These small molecule compounds represent desirable agents in attenuating neurodegeneration and cell death as they abolish activation-induced neurotoxicity of neurotrophins via modulating p75NTR signalling. More comprehensive and in-depth investigations on p75NTR-based drug development are required to shed light on effective treatment of numerous neurological disorders.
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Affiliation(s)
- Liu-Lin Xiong
- Institute of Neurological Disease, West China Hospital, Sichuan University, Chengdu, China.,Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia.,Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Li Chen
- Institute of Neurological Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Isaac Bul Deng
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Xin-Fu Zhou
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Ting-Hua Wang
- Institute of Neurological Disease, West China Hospital, Sichuan University, Chengdu, China
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13
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Li Y, Li F, Qin D, Chen H, Wang J, Wang J, Song S, Wang C, Wang Y, Liu S, Gao D, Wang ZH. The role of brain derived neurotrophic factor in central nervous system. Front Aging Neurosci 2022; 14:986443. [PMID: 36158555 PMCID: PMC9493475 DOI: 10.3389/fnagi.2022.986443] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/23/2022] [Indexed: 11/15/2022] Open
Abstract
Brain derived neurotrophic factor (BDNF) has multiple biological functions which are mediated by the activation of two receptors, tropomyosin receptor kinase B (TrkB) receptor and the p75 neurotrophin receptor, involving in physiological and pathological processes throughout life. The diverse presence and activity of BDNF indicate its potential role in the pathogenesis, progression and treatment of both neurological and psychiatric disorders. This review is to provide a comprehensive assessment of the current knowledge and future directions in BDNF-associated research in the central nervous system (CNS), with an emphasis on the physiological and pathological functions of BDNF as well as its potential treatment effects in CNS diseases, including depression, Alzheimer’s disease, Parkinson’s disease, Huntington’s disease, amyotrophic lateral sclerosis, multiple sclerosis, and cerebral ischemic stroke.
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Affiliation(s)
- Yiyi Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Fang Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Dongdong Qin
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hongyu Chen
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jianhao Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jiabei Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shafei Song
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Chao Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yamei Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Songyan Liu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Dandan Gao
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhi-Hao Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
- Center for Neurodegenerative Disease Research, Renmin Hospital of Wuhan University, Wuhan, China
- *Correspondence: Zhi-Hao Wang,
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14
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Davis LA, Fogarty MJ, Brown A, Sieck GC. Structure and Function of the Mammalian Neuromuscular Junction. Compr Physiol 2022; 12:3731-3766. [PMID: 35950651 PMCID: PMC10461538 DOI: 10.1002/cphy.c210022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The mammalian neuromuscular junction (NMJ) comprises a presynaptic terminal, a postsynaptic receptor region on the muscle fiber (endplate), and the perisynaptic (terminal) Schwann cell. As with any synapse, the purpose of the NMJ is to transmit signals from the nervous system to muscle fibers. This neural control of muscle fibers is organized as motor units, which display distinct structural and functional phenotypes including differences in pre- and postsynaptic elements of NMJs. Motor units vary considerably in the frequency of their activation (both motor neuron discharge rate and duration/duty cycle), force generation, and susceptibility to fatigue. For earlier and more frequently recruited motor units, the structure and function of the activated NMJs must have high fidelity to ensure consistent activation and continued contractile response to sustain vital motor behaviors (e.g., breathing and postural balance). Similarly, for higher force less frequent behaviors (e.g., coughing and jumping), the structure and function of recruited NMJs must ensure short-term reliable activation but not activation sustained for a prolonged period in which fatigue may occur. The NMJ is highly plastic, changing structurally and functionally throughout the life span from embryonic development to old age. The NMJ also changes under pathological conditions including acute and chronic disease. Such neuroplasticity often varies across motor unit types. © 2022 American Physiological Society. Compr Physiol 12:1-36, 2022.
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Affiliation(s)
- Leah A. Davis
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
| | - Matthew J. Fogarty
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
| | - Alyssa Brown
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
| | - Gary C. Sieck
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
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15
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The Role of Neurotrophin Signaling in Age-Related Cognitive Decline and Cognitive Diseases. Int J Mol Sci 2022; 23:ijms23147726. [PMID: 35887075 PMCID: PMC9320180 DOI: 10.3390/ijms23147726] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 02/07/2023] Open
Abstract
Neurotrophins are a family of secreted proteins expressed in the peripheral nervous system and the central nervous system that support neuronal survival, synaptic plasticity, and neurogenesis. Brain-derived neurotrophic factor (BDNF) and its high affinity receptor TrkB are highly expressed in the cortical and hippocampal areas and play an essential role in learning and memory. The decline of cognitive function with aging is a major risk factor for cognitive diseases such as Alzheimer’s disease. Therefore, an alteration of BDNF/TrkB signaling with aging and/or pathological conditions has been indicated as a potential mechanism of cognitive decline. In this review, we summarize the cellular function of neurotrophin signaling and review the current evidence indicating a pathological role of neurotrophin signaling, especially of BDNF/TrkB signaling, in the cognitive decline in aging and age-related cognitive diseases. We also review the therapeutic approach for cognitive decline by the upregulation of the endogenous BDNF/TrkB-system.
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16
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Bogacheva PO, Molchanova AI, Pravdivceva ES, Miteva AS, Balezina OP, Gaydukov AE. ProBDNF and Brain-Derived Neurotrophic Factor Prodomain Differently Modulate Acetylcholine Release in Regenerating and Mature Mouse Motor Synapses. Front Cell Neurosci 2022; 16:866802. [PMID: 35591942 PMCID: PMC9110780 DOI: 10.3389/fncel.2022.866802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/18/2022] [Indexed: 11/30/2022] Open
Abstract
The effects of brain-derived neurotrophic factor (BDNF) processing by-products (proBDNF and BDNF prodomain) on the activity of mouse neuromuscular junctions (NMJs) were studied in synapses formed during the reinnervation of extensor digitorum longus muscle (m. EDL) and mature synapses of the diaphragm. The parameters of spontaneous miniature endplate potentials (MEPPs) and evoked endplate potentials (EPPs) were analyzed in presence of each of the BDNF maturation products (both – 1 nM). In newly formed NMJs, proBDNF caused an increase in the resting membrane potential of muscle fibers and a decrease in the frequency of MEPPs, which was prevented by tertiapin-Q, a G-protein-coupled inwardly rectifying potassium channels (GIRK) blocker but not by p75 receptor signaling inhibitor TAT-Pep5. proBDNF had no effect on the parameters of EPPs. BDNF prodomain in newly formed synapses had effects different from those of proBDNF: it increased the amplitude of MEPPs, which was prevented by vesamicol, an inhibitor of vesicular acetylcholine (ACh) transporter; and reduced the quantal content of EPPs. In mature NMJs, proBDNF did not influence MEPPs parameters, but BDNF prodomain suppressed both spontaneous and evoked ACh release: decreased the frequency and amplitude of MEPPs, and the amplitude and quantal content of EPPs. This effect of the BDNF prodomain was prevented by blocking GIRK channels, by TAT-Pep5 or by Rho-associated protein kinase (ROCK) inhibitor Y-27632. At the same time, the BDNF prodomain did not show any inhibitory effects in diaphragm motor synapses of pannexin 1 knockout mice, which have impaired purinergic regulation of neuromuscular transmission. The data obtained suggest that there is a previously unknown mechanism for the acute suppression of spontaneous and evoked ACh release in mature motor synapses, which involves the activation of p75 receptors, ROCK and GIRK channels by BDNF prodomain and requires interaction with metabotropic purinoreceptors. In general, our results show that both the precursor of BDNF and the product of its maturation have predominantly inhibitory effects on spontaneous and evoked ACh release in newly formed or functionally mature neuromuscular junctions, which are mainly opposite to the effects of BDNF. The inhibitory influences of both proteins related to brain neurotrophin are mediated via GIRK channels of mouse NMJs.
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17
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Omar NA, Kumar J, Teoh SL. Neurotrophin-3 and neurotrophin-4: The unsung heroes that lies behind the meninges. Neuropeptides 2022; 92:102226. [PMID: 35030377 DOI: 10.1016/j.npep.2022.102226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 12/06/2021] [Accepted: 01/04/2022] [Indexed: 11/17/2022]
Abstract
Neurotrophin is a growth factor that regulates the development and repair of the nervous system. From all factors, two pioneer groups, the nerve growth factor (NGF) and brain derived neurotrophic factor (BDNF), have been widely explored for their role in disease pathogenesis and potential use as therapeutic agents. Nonetheless, neurotrophin-3 (NT3) and neurotrophin-4 (NT4) also have promising potential, albeit less popular than their counterparts. This review focuses on the latter two factors and their roles in the pathogenesis of brain disorders and potential therapies. An extensive literature search of NT3 and NT4 with their receptors, the TrkB and TrkC on the nervous system were extracted and analyzed. We found that NT3 and NT4 are not only involved in the pathogenesis of some neurodegenerative diseases, but also have promising therapeutic potential on injury- and vascular-related nervous system disease, neuropsychiatry, neurodegeneration and peripheral nerve diseases. In conclusion, the role of NT3 and NT4 should be further emphasized, and more studies could be explored on the potential use of these neurotrophins in the human study.
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Affiliation(s)
- Noor Azzizah Omar
- Department of Anatomy, Universiti Kebangsaan Malaysia Medical Centre, Bandar Tun Razak, 56000 Kuala Lumpur, Malaysia; Department of Medical Sciences, Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, 71800 Nilai, Negeri Sembilan, Malaysia.
| | - Jaya Kumar
- Department of Physiology, Universiti Kebangsaan Malaysia Medical Centre, Bandar Tun Razak, 56000 Kuala Lumpur, Malaysia.
| | - Seong Lin Teoh
- Department of Anatomy, Universiti Kebangsaan Malaysia Medical Centre, Bandar Tun Razak, 56000 Kuala Lumpur, Malaysia.
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18
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Shan P, Wang X, Zhang Y, Teng Z, Zhang Y, Jin Q, Liu J, Ma J, Nie X. P75 neurotrophin receptor positively regulates the odontogenic/osteogenic differentiation of ectomesenchymal stem cells via nuclear factor kappa-B signaling pathway. Bioengineered 2022; 13:11201-11213. [PMID: 35485233 PMCID: PMC9208484 DOI: 10.1080/21655979.2022.2063495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/24/2022] [Accepted: 04/01/2022] [Indexed: 11/02/2022] Open
Abstract
p75NTR, a neural crest stem cell marker, is continuously expressed in mesenchymal cells during tooth development. Importantly, high expression of p75NTR in the late bell stage implicates its involvement in odontogenesis and mineralization. However, the regulatory mechanisms underlying p75NTR involvement in odonto/osteogenic differentiation remain unclear. Here, we investigate the effect and potential mechanisms underlying p75NTR involvement in odonto/osteogenic differentiation. We dissected EMSCs from the first branchial arches of mice embryo and compared the proliferation and migration of p75NTR+/+ and p75NTR-/-EMSCs by transwell, scratch and cell counting kit 8(CCK8)assays. The differentiation ability and the involvement of nuclear factor kappa-B (NF-κB) pathway were investigated through alkaline phosphatase and immunofluorescence assay, real-time PCR, and western blot. During induction of dental epithelium conditioned medium, p75NTR+/+ EMSCs exhibited deeper Alkaline phosphatase (ALP) staining and higher expression of odonto/osteogenic genes/proteins (e.g., dentin sialoprotein (DSPP) than p75NTR+/+ EMSCs. Moreover, p75NTR+/+ EMSCs exhibited higher nuclear P65 expression than p75NTR-/-EMSCs. Inhibition of NF-κB pathway with Bay11-7082 in p75NTR+/+EMSCs substantially decreased DSPP expression level. However, activation of NF-κB pathway with Bay11-7082 in p75NTR-/-EMSCs enhanced DSPP expression level. Thus, p75NTR possibly plays a paramount role in the proliferation and differentiation of EMSCs via NF-κB pathway.
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Affiliation(s)
- Peifen Shan
- Department of Prosthodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Xiaole Wang
- Department of Nursing, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yanyan Zhang
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Zhisheng Teng
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yunxiao Zhang
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Qiu Jin
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Jiefan Liu
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Jianfeng Ma
- Department of Prosthodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Xin Nie
- Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
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19
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The Effect of Interaction NGF/p75NTR in Sperm Cells: A Rabbit Model. Cells 2022; 11:cells11061035. [PMID: 35326486 PMCID: PMC8947739 DOI: 10.3390/cells11061035] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/11/2022] [Accepted: 03/15/2022] [Indexed: 12/13/2022] Open
Abstract
Background: Nerve Growth Factor (NGF) plays an important role in the reproductive system through its receptor’s interaction (p75NTR). This paper aims to analyze the impact of NGF p75NTR in epididymal and ejaculated rabbit semen during in vitro sperm storage. Methods: Semen samples from 10 adult rabbit bucks were collected four times (n = 40) and analyzed. NGF was quantified in seminal plasma, and the basal expression of p75NTR in sperm was established (time 0). Moreover, we evaluated p75NTR, the apoptotic rates, and the main sperm parameters, at times 2–4 and 6 h with or without the administration of exogenous NGF. Results: Based on the level of p75NTR, we defined the threshold value (25.6%), and sperm were divided into High (H) and Normal (N). During sperm storage, p75NTR of H samples significantly modulated some relevant sperm parameters. Specifically, comparing H samples with N ones, we observed a reduction in motility and non-capacitated cell number, together with an increased percentage of dead and apoptotic cells. Notably, the N group showed a reduction in dead and apoptotic cells after NGF treatment. Conversely, the NGF administration on H sperm did not change either the percentage of dead cells or the apoptotic rate. Conclusion: The concentration of p75NTR on ejaculated sperm modulates many semen outcomes (motility, apoptosis, viability) through NGF interaction affecting the senescence of sperm.
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20
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Fleury S, Schnitzer ME, Ledoux-Hutchinson L, Boukhatem I, Bélanger JC, Welman M, Busseuil D, Tardif JC, D’Antono B, Lordkipanidzé M. Clinical Correlates Identify ProBDNF and Thrombo-Inflammatory Markers as Key Predictors of Circulating p75NTR Extracellular Domain Levels in Older Adults. Front Aging Neurosci 2022; 14:821865. [PMID: 35264944 PMCID: PMC8899540 DOI: 10.3389/fnagi.2022.821865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/31/2022] [Indexed: 11/13/2022] Open
Abstract
The p75NTR receptor binds all neurotrophins and is mostly known for its role in neuronal survival and apoptosis. Recently, the extracellular domain (ECD) of p75NTR has been reported in plasma, its levels being dysregulated in numerous neurological diseases. However, the factors associated with p75NTR ECD levels remain unknown. We investigated clinical correlates of plasma p75NTR ECD levels in older adults without clinically manifested neurological disorders. Circulating p75NTR levels were measured by enzyme-linked immunosorbent assay in plasma obtained from participants in the BEL-AGE cohort (n = 1,280). Determinants of plasma p75NTR ECD levels were explored using linear and non-linear statistical models. Plasma p75NTR ECD levels were higher in male participants; were positively correlated with circulating concentrations of pro-brain-derived neurotrophic factor, and inflammatory markers interleukin-6 and CD40 Ligand; and were negatively correlated with the platelet activation marker P-selectin. While most individuals had p75NTR levels ranging from 43 to 358 pg/ml, high p75NTR levels reaching up to 9,000 pg/ml were detectable in a subgroup representing 15% of the individuals studied. In this cohort of older adults without clinically manifested neurological disorders, there was no association between plasma p75NTR ECD levels and cognitive performance, as assessed by the Montreal Cognitive Assessment score. The physiological relevance of high p75NTR ECD levels in plasma warrants further investigation. Further research assessing the source of circulating p75NTR is needed for a deeper understanding of the direction of effect, and to investigate whether high p75NTR ECD levels are predictive biomarkers or consequences of neuropathology.
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Affiliation(s)
- Samuel Fleury
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Mireille E. Schnitzer
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
- Department of Social and Preventive Medicine, School of Public Health, Université de Montréal, Montreal, QC, Canada
| | | | - Imane Boukhatem
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Jean-Christophe Bélanger
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Mélanie Welman
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
| | - David Busseuil
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
| | - Jean-Claude Tardif
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Medicine, Université de Montréal, Montreal, QC, Canada
- Department of Medicine, Montreal Heart Institute, Montreal, QC, Canada
| | - Bianca D’Antono
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
- Department of Psychology, Faculty of Arts and Sciences, Université de Montréal, Montreal, QC, Canada
- *Correspondence: Bianca D’Antono,
| | - Marie Lordkipanidzé
- Research Centre, Montreal Heart Institute, Montreal, QC, Canada
- Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
- Marie Lordkipanidzé,
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Do Neurotrophins Connect Neurological Disorders and Heart Diseases? Biomolecules 2021; 11:biom11111730. [PMID: 34827728 PMCID: PMC8615910 DOI: 10.3390/biom11111730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/08/2021] [Accepted: 11/16/2021] [Indexed: 12/21/2022] Open
Abstract
Neurotrophins (NTs) are one of the most characterized neurotrophic factor family members and consist of four members in mammals. Growing evidence suggests that there is a complex inter- and bi-directional relationship between central nervous system (CNS) disorders and cardiac dysfunction, so-called "brain-heart axis". Recent studies suggest that CNS disorders, including neurodegenerative diseases, stroke, and depression, affect cardiovascular function via various mechanisms, such as hypothalamic-pituitary-adrenal axis augmentation. Although this brain-heart axis has been well studied in humans and mice, the involvement of NT signaling in the axis has not been fully investigated. In the first half of this review, we emphasize the importance of NTs not only in the nervous system, but also in the cardiovascular system from the embryonic stage to the adult state. In the second half, we discuss the involvement of NTs in the pathogenesis of cardiovascular diseases, and then examine whether an alteration in NTs could serve as the mediator between neurological disorders and heart dysfunction. The further investigation we propose herein could contribute to finding direct evidence for the involvement of NTs in the axis and new treatment for cardiovascular diseases.
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22
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Shi G, Shao S, Zhou J, Huang K, Bi FF. Urinary p75 ECD levels in patients with amyotrophic lateral sclerosis: a meta-analysis. Amyotroph Lateral Scler Frontotemporal Degener 2021; 23:438-445. [PMID: 34726989 DOI: 10.1080/21678421.2021.1990345] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Objective: p75 neurotrophin receptor (p75NTR) is associated with the pathogenesis of amyotrophic lateral sclerosis (ALS). However, its role is not fully understood. The aim of this study was to evaluate the association between ALS and the extracellular domain of p75NTR(p75ECD) in urine. Methods: We conducted a comprehensive literature search using keywords in the PubMed, Embase, Science, and the Cochrane Library, and identified five case control studies, with the latest date of search being 18 April 2021. Results: The results showed that urinary p75ECD levels were significantly higher in patients with ALS compared to non-neurological control (weighted mean difference (WMD) = 4.18, 95% CI [2.525, 6.990], p < 0.001), and other neurological diseases (WMD = 6.005, 95% CI [1.596, 10.414], p = 0.008). Increased urinary p75ECD levels were inversely associated with ALSFRS-R in ALS patients (r = -0.32, 95% CI [-0.43, -0.21], p < 0.001). Conclusions: Given the associations between p75ECD and ALS found in this meta-analysis, urinary p75ECD levels have potential to be used as a diagnostic biomarker and a progression indicator in the future.
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Affiliation(s)
- Guanzhong Shi
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan province, China.,Xiangya school of medicine, Central South University, Changsha, Hunan province, China
| | - Shuai Shao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan province, China.,Xiangya school of medicine, Central South University, Changsha, Hunan province, China
| | - Jinxia Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan province, China
| | - Kun Huang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan province, China.,Institute of Molecular Precision Medicine and Hunan Key Laboratory of Molecular Precision Medicine, Xiangya Hospital, Central South University, Changsha, Hunan province, China
| | - Fang-Fang Bi
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan province, China
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23
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Zhang D, Zhao S, Zhang Z, Xu D, Lian D, Wu J, He D, Sun K, Li L. Regulation of the p75 neurotrophin receptor attenuates neuroinflammation and stimulates hippocampal neurogenesis in experimental Streptococcus pneumoniae meningitis. J Neuroinflammation 2021; 18:253. [PMID: 34727939 PMCID: PMC8561879 DOI: 10.1186/s12974-021-02294-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 10/09/2021] [Indexed: 12/12/2022] Open
Abstract
Background Streptococcus pneumoniae meningitis is a destructive central nervous system (CNS) infection with acute and long-term neurological disorders. Previous studies suggest that p75NTR signaling influences cell survival, apoptosis, and proliferation in brain-injured conditions. However, the role of p75NTR signaling in regulating pneumococcal meningitis (PM)-induced neuroinflammation and altered neurogenesis remains largely to be elucidated. Methods p75NTR signaling activation in the pathological process of PM was assessed. During acute PM, a small-molecule p75NTR modulator LM11A-31 or vehicle was intranasally administered for 3 days prior to S. pneumoniae exposure. At 24 h post-infection, clinical severity, histopathology, astrocytes/microglia activation, neuronal apoptosis and necrosis, inflammation-related transcription factors and proinflammatory cytokines/mediators were evaluated. Additionally, p75NTR was knocked down by the adenovirus-mediated short-hairpin RNA (shRNA) to ascertain the role of p75NTR in PM. During long-term PM, the intranasal administration of LM11A-31 or vehicle was continued for 7 days after successfully establishing the PM model. Dynamic changes in inflammation and hippocampal neurogenesis were assessed. Results Our results revealed that both 24 h (acute) and 7, 14, 28 day (long-term) groups of infected rats showed increased p75NTR expression in the brain. During acute PM, modulation of p75NTR through pretreatment of PM model with LM11A-31 significantly alleviated S. pneumoniae-induced clinical severity, histopathological injury and the activation of astrocytes and microglia. LM11A-31 pretreatment also significantly ameliorated neuronal apoptosis and necrosis. Moreover, we found that blocking p75NTR with LM11A-31 decreased the expression of inflammation-related transcription factors (NF-κBp65, C/EBPβ) and proinflammatory cytokines/mediators (IL-1β, TNF-α, IL-6 and iNOS). Furthermore, p75NTR knockdown induced significant changes in histopathology and inflammation-related transcription factors expression. Importantly, long-term LM11A-31 treatment accelerated the resolution of PM-induced inflammation and significantly improved hippocampal neurogenesis. Conclusion Our findings suggest that the p75NTR signaling plays an essential role in the pathogenesis of PM. Targeting p75NTR has beneficial effects on PM rats by alleviating neuroinflammation and promoting hippocampal neurogenesis. Thus, the p75NTR signaling may be a potential therapeutic target to improve the outcome of PM. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-021-02294-w.
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Affiliation(s)
- Dandan Zhang
- Department of Pediatric Neurology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Shanghai, 200092, China
| | - Shengnan Zhao
- Department of Pediatric Neurology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Shanghai, 200092, China
| | - Zhijie Zhang
- Department of Pediatric Neurology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Shanghai, 200092, China
| | - Danfeng Xu
- Department of Pediatric Neurology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Shanghai, 200092, China
| | - Di Lian
- Department of Pediatric Neurology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Shanghai, 200092, China
| | - Jing Wu
- Department of Pediatric Neurology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Shanghai, 200092, China
| | - Dake He
- Department of Pediatric Neurology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Shanghai, 200092, China
| | - Kun Sun
- Department of Pediatric Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Shanghai, 200092, China.
| | - Ling Li
- Department of Pediatric Neurology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Kongjiang Road 1665, Shanghai, 200092, China.
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Wang Z, Huang Y, Chu F, Liao K, Cui Z, Chen J, Tang S. Integrated Analysis of DNA methylation and transcriptome profile to identify key features of age-related macular degeneration. Bioengineered 2021; 12:7061-7078. [PMID: 34569899 PMCID: PMC8806579 DOI: 10.1080/21655979.2021.1976502] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Age-related macular degeneration (AMD) is a common vision-threatening disease. The current study sought to integrate DNA methylation with transcriptome profile to explore key features in AMD. Gene expression data were obtained from the Gene Expression Omnibus (GEO, accession ID: GSE135092) and DNA methylation data were obtained from the ArrayExpress repository (E-MTAB-7183). A total of 456 differentially expressed genes (DEGs) and 4827 intragenic differentially methylated CpGs (DMCs) were identified between AMD and controls. DEGs and DMCs were intersected and 19 epigenetically induced (EI) genes and 15 epigenetically suppressed (ES) genes were identified. Immune cell infiltration analysis was performed to estimate the abundance of different types of immune cell in each sample. Enrichment scores of inflammatory response and tumor necrosis factor-alpha (TNFα) signaling via nuclear factor kappa B (NF-κb) were positively correlated with abundance of activated memory CD4 T cells and M1 macrophages. Subsequently, two significant random forest classifiers were constructed based on DNA methylation and transcriptome data. SMAD2 and NGFR were selected as key genes through functional epigenetic modules (FEM) analysis. Expression level of SMAD2, NGFR and their integrating proteins was validated in hydrogen peroxide (H2O2) and TNFα co-treated retinal pigment epithelium (RPE) in vitro. The findings of the current study showed that local inflammation and systemic inflammatory host response play key roles in pathogenesis of AMD. SMAD2 and NGFR provide new insight in understanding the molecular mechanism and are potential therapeutic targets for development of AMD therapy.
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Affiliation(s)
- Zhijie Wang
- Aier School of Ophthalmology, Central South University, Changsha, China.,Aier Eye Institute, Changsha, China
| | - Yinhua Huang
- Aier School of Ophthalmology, Central South University, Changsha, China.,Aier Eye Institute, Changsha, China
| | - Feixue Chu
- Hangzhou Xihu Zhijiang Eye Hospital, Hangzhou, China
| | - Kai Liao
- Aier School of Ophthalmology, Central South University, Changsha, China.,Aier Eye Institute, Changsha, China
| | | | - Jiansu Chen
- Aier School of Ophthalmology, Central South University, Changsha, China.,Aier Eye Institute, Changsha, China.,Key Laboratory for Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, China.,Institute of Ophthalmology, Medical College, Jinan University, Guangzhou, China
| | - Shibo Tang
- Aier School of Ophthalmology, Central South University, Changsha, China.,Aier Eye Institute, Changsha, China.,Cas Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
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25
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Dedoni S, Marras L, Olianas MC, Ingianni A, Onali P. Valproic acid upregulates the expression of the p75NTR/sortilin receptor complex to induce neuronal apoptosis. Apoptosis 2021; 25:697-714. [PMID: 32712736 PMCID: PMC7527367 DOI: 10.1007/s10495-020-01626-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The antiepileptic and mood stabilizer agent valproic acid (VPA) has been shown to exert anti-tumour effects and to cause neuronal damage in the developing brain through mechanisms not completely understood. In the present study we show that prolonged exposure of SH-SY5Y and LAN-1 human neuroblastoma cells to clinically relevant concentrations of VPA caused a marked induction of the protein and transcript levels of the common neurotrophin receptor p75NTR and its co-receptor sortilin, two promoters of apoptotic cell death in response to proneurotrophins. VPA induction of p75NTR and sortilin was associated with an increase in plasma membrane expression of the receptor proteins and was mimicked by cell treatment with several histone deacetylase (HDAC) inhibitors. VPA and HDAC1 knockdown decreased the level of EZH2, a core component of the polycomb repressive complex 2, and upregulated the transcription factor CASZ1, a positive regulator of p75NTR. CASZ1 knockdown attenuated VPA-induced p75NTR overexpression. Cell treatment with VPA favoured proNGF-induced p75NTR/sortilin interaction and the exposure to proNGF enhanced JNK activation and apoptotic cell death elicited by VPA. Depletion of p75NTR or addition of the sortilin agonist neurotensin to block proNGF/sortilin interaction reduced the apoptotic response to VPA and proNGF. Exposure of mouse cerebellar granule cells to VPA upregulated p75NTR and sortilin and induced apoptosis which was enhanced by proNGF. These results indicate that VPA upregulates p75NTR apoptotic cell signalling through an epigenetic mechanism involving HDAC inhibition and suggest that this effect may contribute to the anti-neuroblastoma and neurotoxic effects of VPA.
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Affiliation(s)
- Simona Dedoni
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences and Clinical Pharmacology, Department of Biomedical Sciences, University of Cagliari, 09042, Monserrato, CA, Italy
| | - Luisa Marras
- Section of Microbiology, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Maria C Olianas
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences and Clinical Pharmacology, Department of Biomedical Sciences, University of Cagliari, 09042, Monserrato, CA, Italy
| | - Angela Ingianni
- Section of Microbiology, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Pierluigi Onali
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences and Clinical Pharmacology, Department of Biomedical Sciences, University of Cagliari, 09042, Monserrato, CA, Italy.
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26
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In vivo functions of p75 NTR: challenges and opportunities for an emerging therapeutic target. Trends Pharmacol Sci 2021; 42:772-788. [PMID: 34334250 DOI: 10.1016/j.tips.2021.06.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 05/31/2021] [Accepted: 06/28/2021] [Indexed: 12/24/2022]
Abstract
The p75 neurotrophin receptor (p75NTR) functions at the molecular nexus of cell death, survival, and differentiation. In addition to its contribution to neurodegenerative diseases and nervous system injuries, recent studies have revealed unanticipated roles of p75NTR in liver repair, fibrinolysis, lung fibrosis, muscle regeneration, and metabolism. Linking these various p75NTR functions more precisely to specific mechanisms marks p75NTR as an emerging candidate for therapeutic intervention in a wide range of disorders. Indeed, small molecule inhibitors of p75NTR binding to neurotrophins have shown efficacy in models of Alzheimer's disease (AD) and neurodegeneration. Here, we outline recent advances in understanding p75NTR pleiotropic functions in vivo, and propose an integrated view of p75NTR and its challenges and opportunities as a pharmacological target.
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27
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Dedoni S, Marras L, Olianas MC, Ingianni A, Onali P. The Neurotrophin Receptor TrkC as a Novel Molecular Target of the Antineuroblastoma Action of Valproic Acid. Int J Mol Sci 2021; 22:ijms22157790. [PMID: 34360553 PMCID: PMC8346142 DOI: 10.3390/ijms22157790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/14/2021] [Accepted: 07/19/2021] [Indexed: 11/16/2022] Open
Abstract
Neurotrophins and their receptors are relevant factors in controlling neuroblastoma growth and progression. The histone deacetylase (HDAC) inhibitor valproic acid (VPA) has been shown to downregulate TrkB and upregulate the p75NTR/sortilin receptor complex. In the present study, we investigated the VPA effect on the expression of the neurotrophin-3 (NT-3) receptor TrkC, a favorable prognostic marker of neuroblastoma. We found that VPA induced the expression of both full-length and truncated (TrkC-T1) isoforms of TrkC in human neuroblastoma cell lines without (SH-SY5Y) and with (Kelly, BE(2)-C and IMR 32) MYCN amplification. VPA enhanced cell surface expression of the receptor and increased Akt and ERK1/2 activation by NT-3. The HDAC inhibitors entinostat, romidepsin and vorinostat also increased TrkC in SH-SY5Y, Kelly and BE(2)-C but not IMR 32 cells. TrkC upregulation by VPA involved induction of RUNX3, stimulation of ERK1/2 and JNK, and ERK1/2-mediated Egr1 expression. In SH-SY5Y cell monolayers and spheroids the exposure to NT-3 enhanced the apoptotic cascade triggered by VPA. Gene silencing of both TrkC-T1 and p75NTR prevented the NT-3 proapoptotic effect. Moreover, NT-3 enhanced p75NTR/TrkC-T1 co-immunoprecipitation. The results indicate that VPA upregulates TrkC by activating epigenetic mechanisms and signaling pathways, and sensitizes neuroblastoma cells to NT-3-induced apoptosis.
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Affiliation(s)
- Simona Dedoni
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, University of Cagliari, 09042 Monserrato, Italy; (S.D.); (M.C.O.)
| | - Luisa Marras
- Section of Microbiology, Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, Italy; (L.M.); (A.I.)
| | - Maria C. Olianas
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, University of Cagliari, 09042 Monserrato, Italy; (S.D.); (M.C.O.)
| | - Angela Ingianni
- Section of Microbiology, Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, Italy; (L.M.); (A.I.)
| | - Pierluigi Onali
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, University of Cagliari, 09042 Monserrato, Italy; (S.D.); (M.C.O.)
- Correspondence:
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28
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Fujii-Tezuka R, Ishige-Wada M, Nagoshi N, Okano H, Mugishima H, Takahashi S, Morioka I, Matsumoto T. Umbilical artery tissue contains p75 neurotrophin receptor-positive pericyte-like cells that possess neurosphere formation capacity and neurogenic differentiation potential. Regen Ther 2021; 16:1-11. [PMID: 33426237 PMCID: PMC7773767 DOI: 10.1016/j.reth.2020.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 11/07/2020] [Accepted: 12/09/2020] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION The p75 neurotrophin receptor (p75NTR) is known as an efficient marker for the prospective isolation of mesenchymal stem cells (MSCs) and neural crest-derived stem cells (NCSCs). To date, there is quite limited information concerning p75NTR-expressing cells in umbilical cord (UC), although UC is known as a rich source of MSCs. We show for the first time the localization, phenotype, and functional properties of p75NTR+ cells in UC. METHODS Human UC tissue sections were subjected to immunohistochemistry for MSC markers including p75NTR. Enzymatically isolated umbilical artery (UA) cells containing p75NTR+ cells were assessed for immunophenotype, clonogenic capacity, and differentiation potential. To identify the presence of neural crest-derived cells in the UA, P0-Cre/Floxed-EGFP reporter mouse embryos were used, and immunohistochemical analysis of UC tissue was performed. RESULTS Immunohistochemical analysis revealed that p75NTR+ cells were specifically localized to the subendothelial area of the UA and umbilical vein. The p75NTR+ cells co-expressed PDGFRβ, CD90, CD146, and NG2, phenotypic markers of MSCs and pericytes. Isolated UA cells possessed the potential to form neurospheres that further differentiated into neuronal and glial cell lineages. Genetic lineage tracing analysis showed that EGFP+ neural crest-derived cells were detected in the subendothelial area of UA with p75NTR immunoreactivity. CONCLUSIONS These results show that UA tissue harbors p75NTR+ pericyte-like cells in the subendothelial area that have the capacity to form neurospheres and the potential for neurogenic differentiation. The lineage tracing data suggests the p75NTR+ cells are putatively derived from the neural crest.
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Key Words
- ASMA, α-smooth muscle actin
- BDNF, bone-derived neurotrophic factor
- CFU-F, colony-forming unit fibroblast
- DAPI, 4′,6-diamino-2-phenylindole
- DMEM, Dulbecco's modified Eagle medium
- EGF, epidermal growth factor
- EGFP, enhanced green fluorescent protein
- EdU, 5-ethynyl-2′-deoxyuridine
- FBS, fetal bovine serum
- FGF-2, fibroblast growth factor-2
- FSK, forskolin
- GFAP, glial fibrillary acidic protein
- MAP2, microtubule-associated protein 2
- MSCs, mesenchymal stem cells
- Mesenchymal stem cells
- NCSCs, neural crest-derived stem cells
- NF200, neurofilament 200
- NG2, neuron-glial antigen 2
- Neural crest stem cells
- Neurosphere
- PBS, phosphate-buffered saline
- PDGF, platelet-derived growth factor
- RA, all-trans-retinoic acid
- TBS, Tris-buffered saline
- UA, umbilical artery
- UC, umbilical cord
- UV, umbilical vein
- Umbilical cord
- WJ, Wharton's jelly
- p75 neurotrophin receptor
- p75NTR, p75 neurotrophin receptor
- vWF, von Willebrand factor
- α-MEM, alpha-modified minimum essential medium
- βME, β-mercaptoethanol
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Affiliation(s)
- Rina Fujii-Tezuka
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
| | - Mika Ishige-Wada
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
| | - Narihito Nagoshi
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - Hideo Mugishima
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
- Kawagoe Preventive Medical Center Clinic, Kawagoe, Japan
| | - Shori Takahashi
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
- Itabashi Chuo Medical Center, Tokyo, Japan
| | - Ichiro Morioka
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
| | - Taro Matsumoto
- Department of Functional Morphology, Division of Cell Regeneration and Transplantation, Nihon University School of Medicine, Tokyo, Japan
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Khirug S, Soni S, Saez Garcia M, Tessier M, Zhou L, Kulesskaya N, Rauvala H, Lindholm D, Ludwig A, Molinari F, Rivera C. Protective Role of Low Ethanol Administration Following Ischemic Stroke via Recovery of KCC2 and p75 NTR Expression. Mol Neurobiol 2021; 58:1145-1161. [PMID: 33099743 PMCID: PMC7878264 DOI: 10.1007/s12035-020-02176-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/14/2020] [Indexed: 01/31/2023]
Abstract
A striking result from epidemiological studies show a correlation between low alcohol intake and lower incidence for ischemic stroke and severity of derived brain injury. Although reduced apoptosis and inflammation has been suggested to be involved, little is known about the mechanism mediating this effect in vivo. Increase in intracellular chloride concentration and derived depolarizing GABAAR-mediated transmission are common consequences following various brain injuries and are caused by the abnormal expression levels of the chloride cotransporters NKCC1 and KCC2. Downstream pro-apoptotic signaling through p75NTR may link GABAA depolarization with post-injury neuronal apoptosis. Here, we show that changes in GABAergic signaling, Cl- homeostasis, and expression of chloride cotransporters in the post-traumatic mouse brain can be significantly reduced by administration of 3% ethanol to the drinking water. Ethanol-induced upregulation of KCC2 has a positive impact on neuronal survival, preserving a large part of the cortical peri-infarct zone, as well as preventing the massive post-ischemic upregulation of the pro-apoptotic protein p75NTR. Importantly, intracortical multisite in vivo recordings showed that ethanol treatment could significantly ameliorate stroke-induced reduction in cortical activity. This surprising finding discloses a pathway triggered by low concentration of ethanol as a novel therapeutically relevant target.
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Affiliation(s)
- Stanislav Khirug
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland.
| | - Shetal Soni
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Marta Saez Garcia
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Marine Tessier
- INMED (INSERM U1249), Aix-Marseille Université, Marseille, France
| | - Liang Zhou
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Natalia Kulesskaya
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Heikki Rauvala
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Dan Lindholm
- Medicum, Department of Biochemistry and Developmental Biology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Biomedicum Helsinki 2U, Helsinki, Finland
| | - Anastasia Ludwig
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | | | - Claudio Rivera
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland.
- INMED (INSERM U1249), Aix-Marseille Université, Marseille, France.
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30
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Fleury S, Boukhatem I, Le Blanc J, Welman M, Lordkipanidzé M. Tissue-Specificity of Antibodies Raised Against TrkB and p75 NTR Receptors; Implications for Platelets as Models of Neurodegenerative Diseases. Front Immunol 2021; 12:606861. [PMID: 33643311 PMCID: PMC7905091 DOI: 10.3389/fimmu.2021.606861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/04/2021] [Indexed: 11/13/2022] Open
Abstract
Platelets and neurons share many similarities including comparable secretory granule types with homologous calcium-dependent secretory mechanisms as well as internalization, sequestration and secretion of many neurotransmitters. Thus, platelets present a high potential to be used as peripheral biomarkers to reflect neuronal pathologies. The brain-derived neurotrophic factor (BDNF) acts as a neuronal growth factor involved in learning and memory through the binding of two receptors, the tropomyosin receptor kinase B (TrkB) and the 75 kDa pan-neurotrophic receptor (p75NTR). In addition to its expression in the central nervous system, BDNF is found in much greater quantities in blood circulation, where it is largely stored within platelets. Levels 100- to 1,000-fold those of neurons make platelets the most important peripheral reservoir of BDNF. This led us to hypothesize that platelets would express canonical BDNF receptors, i.e., TrkB and p75NTR, and that the receptors on platelets would bear significant resemblance to the ones found in the brain. However, herein we report discrepancies regarding detection of these receptors using antibody-based assays, with antibodies displaying important tissue-specificity. The currently available antibodies raised against TrkB and p75NTR should therefore be used with caution to study platelets as models for neurological disorders. Rigorous characterization of antibodies and bioassays appears critical to understand the interplay between platelet and neuronal biology of BDNF.
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Affiliation(s)
- Samuel Fleury
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Imane Boukhatem
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Jessica Le Blanc
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Mélanie Welman
- Research Center, Montreal Heart Institute, Montreal, QC, Canada
| | - Marie Lordkipanidzé
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
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31
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Goten C, Usui S, Takashima SI, Inoue O, Okada H, Shimojima M, Sakata K, Kawashiri M, Kaneko S, Takamura M. Circulating nerve growth factor receptor positive cells are associated with severity and prognosis of pulmonary arterial hypertension. Pulm Circ 2021; 11:2045894021990525. [PMID: 33767850 PMCID: PMC7953227 DOI: 10.1177/2045894021990525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/06/2021] [Indexed: 12/13/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) remains a disease with a poor prognosis, so
early detection and treatment are very important. Sensitive and non-invasive
markers for PAH are urgently required. This study was performed to identify
sensitive markers of the clinical severity and prognosis of PAH. Patients
diagnosed with PAH (n = 30) and control participants (n = 15) were enrolled in
this observational study. Major EPC and MSC markers (including CD34, CD133,
VEGFR2, CD90, PDGFRα, and NGFR) in peripheral blood mononuclear cells (PBMNCs)
were assessed by flow cytometry. Associations of these markers with hemodynamic
parameters (e.g. mean pulmonary arterial pressure, pulmonary vascular
resistance, and cardiac index) were assessed. Patients with PAH were followed up
for 12 months to assess the incidence of major adverse events, defined as death
or lung transplantation. Levels of circulating EPC and MSC markers in PBMNCs
were higher in patients with PAH than in control participants. Among the studied
markers, nerve growth factor receptor (NGFR) was significantly positively
correlated with hemodynamic parameters. During the 12-month follow-up period,
major-event-free survival was significantly higher in patients with PAH who had
relatively low frequencies of NGFR positive cells than patients who had higher
frequencies. These results suggested that the presence of circulating NGFR
positive cells among PBMNCs may be a novel biomarker for the severity and
prognosis of PAH.
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Affiliation(s)
- Chiaki Goten
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.,Department of System Biology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Soichiro Usui
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Shin-Ichiro Takashima
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Oto Inoue
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Hirofumi Okada
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Masaya Shimojima
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Kenji Sakata
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Masaaki Kawashiri
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Shuichi Kaneko
- Department of System Biology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Masayuki Takamura
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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Blondy S, Talbot H, Saada S, Christou N, Battu S, Pannequin J, Jauberteau M, Lalloué F, Verdier M, Mathonnet M, Perraud A. Overexpression of sortilin is associated with 5-FU resistance and poor prognosis in colorectal cancer. J Cell Mol Med 2021; 25:47-60. [PMID: 33325631 PMCID: PMC7810928 DOI: 10.1111/jcmm.15752] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/30/2020] [Accepted: 07/30/2020] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer worldwide. Even if 5-fluorouracil (5-FU) is used as the first-line chemotherapeutic drug, responsiveness is only 20-30%. Acquired resistance to 5-FU contributes to both poor patient prognosis and relapse, emphasizing the need to identify biomarkers. Sortilin, a vacuolar protein sorting 10 protein (Vps10p), implicated in protein trafficking, is over expressed in CRC cell lines cultured 72 hours in presence of 5-FU. This overexpression was also observed in 5-FU-resistant cells derived from these cell lines as well as in CRC primary cultures (or patients derived cell lines). A significantly higher expression of sortilin was observed in vivo, in 5-FU-treated tumours engrafted in Nude mice, as compared with non-treated tumour. A study of transcriptional regulation allowed identifying a decrease in ATF3 expression, as an explanation of sortilin overexpression following 5-FU treatment. In silico analysis revealed SORT1 expression correlation with poor prognosis. Moreover, sortilin expression was found to be positively correlated with CRC tumour grades. Collectively, our findings identify sortilin as a potential biomarker of 5-FU resistance associated with poor clinical outcomes and aggressiveness in CRC. As a new prognostic factor, sortilin expression could be used to fight against CRC.
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MESH Headings
- Adaptor Proteins, Vesicular Transport/genetics
- Adaptor Proteins, Vesicular Transport/metabolism
- Aged
- Aged, 80 and over
- Animals
- Cell Line, Tumor
- Colorectal Neoplasms/drug therapy
- Colorectal Neoplasms/genetics
- Colorectal Neoplasms/pathology
- Disease-Free Survival
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/genetics
- Female
- Fluorouracil/therapeutic use
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Male
- Mice, Nude
- Neoplasm Grading
- Prognosis
- Protein Transport/drug effects
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Treatment Outcome
- Xenograft Model Antitumor Assays
- Mice
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Affiliation(s)
- Sabrina Blondy
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
| | - Hugo Talbot
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
| | - Sofiane Saada
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
| | - Niki Christou
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
- Service de Chirurgie DigestiveEndocrinienne et GénéraleCHU de LimogesLimogesFrance
| | - Serge Battu
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
| | - Julie Pannequin
- IGFUniversité MontpellierCNRSINSERMMontpellier Cedex 5France
| | - Marie‐Odile Jauberteau
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
- Service d’ImmunologieCHU de LimogesLimogesFrance
| | - Fabrice Lalloué
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
| | - Mireille Verdier
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
| | - Muriel Mathonnet
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
- Service de Chirurgie DigestiveEndocrinienne et GénéraleCHU de LimogesLimogesFrance
| | - Aurélie Perraud
- Laboratoire EA3842 Contrôle de l’Activation CellulaireProgression Tumorale et Résistances thérapeutiques «CAPTuR»Faculté de médecineLimogesFrance
- Service de Chirurgie DigestiveEndocrinienne et GénéraleCHU de LimogesLimogesFrance
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Ribeiro JT, Thieme S, Zettermann P, Leite AA, Zanella VG, Pilar EFS, Fonseca FP, Mesquita RA, Vargas PA, Dos Santos JN, Martins MD. Immunoexpression of BDNF, TrkB, and p75NTR receptors in peripheral neural lesions of the head and neck. J Oral Pathol Med 2020; 50:492-501. [PMID: 33222311 DOI: 10.1111/jop.13145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 10/20/2020] [Accepted: 11/11/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) and neurotrophin receptors have been recognized as fundamental regulators of normal brain development, homeostasis, and plasticity. They have also been studied in the behavior of central nervous system tumors. Here, we studied the pattern of BDNF, TrkB and p75NTR immunoexpression in peripheral benign and malignant neural lesions in head and neck. METHODS This cross-sectional analytical study included 79 cases of head and neck neural lesions. Nineteen cases of traumatic neuromas (TN), 20 cases of granular cell tumors (GCT), 16 cases of neurofibromas (NF), 20 cases of schwannomas (SC), and 4 malignant peripheral nerve sheath tumor (MPNST) were submitted to immunohistochemistry with BDNF, TrkB, and p75NTR antibodies. A semi-quantitative analysis was performed. RESULTS The analysis of BDNF demonstrated a high percentage of positive cells in TN, GCT and SC with a decrease in cases of NF and MPNST. TrkB presented a lower significant immunoexpression in GCT in relation to the TN, NF, SC, and MPNST (P < .0001); and TN showed less percentage of positive cell compared to SC (P = .0017). Regarding p75NTR, the percentage of positive cell was significantly reduced in MPNST compared GCT (P = .009), NF (P = .0138) and SC (P = .0069). Also, a decrease in TN compared to GCT (P = .007) was observed. CONCLUSIONS Our results showed the immunoreactivity of BDNF, TrkB, and p75NTR in head and neck peripheral neural lesions. Reduction of BDNF and p75NTR in MPNST might suggest down-regulation during the acquisition of malignant phenotype.
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Affiliation(s)
- Julia Turra Ribeiro
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Stéfanie Thieme
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Paula Zettermann
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Amanda Almeida Leite
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
| | - Virgilio Gonzales Zanella
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Head and Neck Surgery Department, Hospital Santa Rita, Complexo Hospitalar Santa Casa, Porto Alegre, Brazil
| | - Emily Ferreira Salles Pilar
- Experimental Pathology Unit, Clinics Hospital of Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Felipe Paiva Fonseca
- Department of Oral Surgery and Pathology, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Alves Mesquita
- Department of Oral Surgery and Pathology, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
| | - Jean Nunes Dos Santos
- Department of Oral Pathology, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - Manoela Domingues Martins
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Head and Neck Surgery Department, Hospital Santa Rita, Complexo Hospitalar Santa Casa, Porto Alegre, Brazil.,Department of Oral Medicine, Porto Alegre Clinics Hospital (HCPA/UFRGS), Porto Alegre, Brazil
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34
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Yang W, Sung K, Xu W, Rodriguez MJ, Wu AC, Santos SA, Fang S, Uber RK, Dong SX, Guillory BC, Orain X, Raus J, Jolivalt C, Calcutt N, Rissman RA, Ding J, Wu C. A missense point mutation in nerve growth factor (NGF R100W) results in selective peripheral sensory neuropathy. Prog Neurobiol 2020; 194:101886. [PMID: 32693191 DOI: 10.1016/j.pneurobio.2020.101886] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 06/09/2020] [Accepted: 07/11/2020] [Indexed: 01/15/2023]
Abstract
The R100W mutation in nerve growth factor is associated with hereditary sensory autonomic neuropathy V in a Swedish family. These patients develop severe loss of perception to deep pain but with apparently normal cognitive functions. To better understand the disease mechanism, we examined a knockin mouse model of HSAN V. The homozygous mice showed significant structural deficits in intra-epidermal nerve fibers (IENFs) at birth. These mice had a total loss of pain perception at ∼2 months of age and often failed to survive to adulthood. Heterozygous mutant mice developed a progressive degeneration of small sensory fibers both behaviorally and functionally: they showed a progressive loss of IENFs starting at the age of 9 months accompanied with progressive loss of perception to painful stimuli such as noxious temperature. Quantitative analysis of lumbar 4/5 dorsal root ganglia revealed a significant reduction in small size neurons, while analysis of sciatic nerve fibers revealed the heterozygous mutant mice had no reduction in myelinated nerve fibers. Significantly, the amount of NGF secreted from mouse embryonic fibroblasts were reduced from both heterozygous and homozygous mice compared to their wild-type littermates. Interestingly, the heterozygous mice showed no apparent structural alteration in the brain: neither the anterior cingulate cortex nor the medial septum including NGF-dependent basal forebrain cholinergic neurons. Accordingly, these animals did not develop appreciable deficits in tests for brain function. Our study has thus demonstrated that the NGFR100W mutation likely affects the structure and function of peripheral sensory neurons.
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Affiliation(s)
- Wanlin Yang
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Neurosciences, University of California San Diego, La Jolla, CA, USA; Department of Neurology, Zhuijiang Hospital, Southern Medical University, Guangzhou, China
| | - Kijung Sung
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Wei Xu
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Maria J Rodriguez
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA; Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Andrew C Wu
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Sarai A Santos
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Savannah Fang
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Rebecca K Uber
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Stephanie X Dong
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Brandon C Guillory
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Xavier Orain
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Jordan Raus
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Corrine Jolivalt
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Nigel Calcutt
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Robert A Rissman
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA; Veterans Affairs San Diego Healthcare System, San Diego, CA, USA
| | - Jianqing Ding
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chengbiao Wu
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA.
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35
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Qin Z, Gonsalvez DG, Wood RJ, Daemi F, Yoo S, Ivanusic JJ, Coulson EJ, Murray SS, Xiao J. Partial deletion of p75 NTR in large-diameter DRG neurons exerts no influence upon the survival of peripheral sensory neurons in vivo. J Neurosci Res 2020; 98:1987-1998. [PMID: 32585763 DOI: 10.1002/jnr.24665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 04/20/2020] [Accepted: 05/14/2020] [Indexed: 01/19/2023]
Abstract
The p75 neurotrophin receptor (p75NTR ) is required for maintaining peripheral sensory neuron survival and function; however, the underlying cellular mechanism remains unclear. The general view is that expression of p75NTR by the neuron itself is required for maintaining sensory neuron survival and myelination in the peripheral nervous system (PNS). Adopting a neuronal-specific conditional knockout strategy, we demonstrate the partial depletion of p75NTR in neurons exerts little influence upon maintaining sensory neuron survival and peripheral nerve myelination in health and after demyelinating neuropathy. Our data show that the density and total number of dorsal root ganglion (DRG) neurons in 2-month-old mice is not affected following the deletion of p75NTR in large-diameter myelinating neurons, as assessed by stereology. Adopting experimental autoimmune neuritis induced in adult male mice, an animal model of demyelinating peripheral neuropathy, we identify that deleting p75NTR in myelinating neurons exerts no influence upon the disease progression, the total number of DRG neurons, and the extent of myelin damage in the sciatic nerve, indicating that the expression of neuronal p75NTR is not essential for maintaining peripheral neuron survival and myelination after a demyelinating insult in vivo. Together, results of this study suggest that the survival and myelination of peripheral sensory neurons is independent of p75NTR expressed by a subtype of neurons in vivo. Thus, our findings provide new insights into the mechanism underpinning p75NTR -mediated neuronal survival in the PNS.
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Affiliation(s)
- Zuoheng Qin
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - David G Gonsalvez
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Rhiannon J Wood
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Fatemeh Daemi
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Sangwon Yoo
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Jason J Ivanusic
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Elizabeth J Coulson
- School of Biomedical Sciences, Queensland University, Brisbane, QLD, Australia
| | - Simon S Murray
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Junhua Xiao
- Department of Anatomy and Neuroscience, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
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Abstract
Neurotrophin-3 (NT-3) belongs to a family of growth factors called neurotrophins whose actions are centered in the nervous system. NT-3 is structurally related to other neurotrophins like brain-derived neurotrophic factor. The expression of NT-3 starts with the onset of neurogenesis and continues throughout life. A wealth of information links NT-3 to the growth, differentiation, and survival of hippocampal cells as well as sympathetic and sensory neurons. These studies have described the distribution of NT-3 and its receptors throughout development and in the mature nervous system. Prior works has begun to cell-type specific impact of NT-3 as well as identify the signaling pathways involved. However, much less is known about how NT-3 regulates synaptic transmission. This chapter focuses role of NT-3 in the modulation of synaptic transmission.
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37
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de Girolamo P, Leggieri A, Palladino A, Lucini C, Attanasio C, D’Angelo L. Cholinergic System and NGF Receptors: Insights from the Brain of the Short-Lived Fish Nothobranchius furzeri. Brain Sci 2020; 10:brainsci10060394. [PMID: 32575701 PMCID: PMC7348706 DOI: 10.3390/brainsci10060394] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/17/2020] [Accepted: 06/17/2020] [Indexed: 01/01/2023] Open
Abstract
Nerve growth factor (NGF) receptors are evolutionary conserved molecules, and in mammals are considered necessary for ensuring the survival of cholinergic neurons. The age-dependent regulation of NTRK1/NTRKA and p75/NGFR in mammalian brain results in a reduced response of the cholinergic neurons to neurotrophic factors and is thought to play a role in the pathogenesis of neurodegenerative diseases. Here, we study the age-dependent expression of NGF receptors (NTRK1/NTRKA and p75/NGFR) in the brain of the short-lived teleost fish Nothobranchius furzeri. We observed that NTRK1/NTRKA is more expressed than p75/NGFR in young and old animals, although both receptors do not show a significant age-dependent change. We then study the neuroanatomical organization of the cholinergic system, observing that cholinergic fibers project over the entire neuroaxis while cholinergic neurons appear restricted to few nuclei situated in the equivalent of mammalian subpallium, preoptic area and rostral reticular formation. Finally, our experiments do not confirm that NTRK1/NTRKA and p75/NGFR are expressed in cholinergic neuronal populations in the adult brain of N. furzeri. To our knowledge, this is the first study where NGF receptors have been analyzed in relation to the cholinergic system in a fish species along with their age-dependent modulation. We observed differences between mammals and fish, which make the African turquoise killifish an attractive model to further investigate the fish specific NGF receptors regulation.
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Affiliation(s)
- Paolo de Girolamo
- Department Veterinary Medicine and Animal Production, University of Naples Federico II, Naples I-80137, Italy; (A.L.); (C.L.); (C.A.); (L.D.)
- Correspondence: ; Tel.: +39-081-2536099
| | - Adele Leggieri
- Department Veterinary Medicine and Animal Production, University of Naples Federico II, Naples I-80137, Italy; (A.L.); (C.L.); (C.A.); (L.D.)
| | - Antonio Palladino
- CESMA—Centro Servizi metereologici e Tecnologici Avanzati, University of Naples Federico II, I-80126 Naples, Italy;
| | - Carla Lucini
- Department Veterinary Medicine and Animal Production, University of Naples Federico II, Naples I-80137, Italy; (A.L.); (C.L.); (C.A.); (L.D.)
| | - Chiara Attanasio
- Department Veterinary Medicine and Animal Production, University of Naples Federico II, Naples I-80137, Italy; (A.L.); (C.L.); (C.A.); (L.D.)
| | - Livia D’Angelo
- Department Veterinary Medicine and Animal Production, University of Naples Federico II, Naples I-80137, Italy; (A.L.); (C.L.); (C.A.); (L.D.)
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38
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Aerts-Kaya F, Ulum B, Mammadova A, Köse S, Aydin G, Korkusuz P, Uçkan-Çetinkaya D. Neurological Regulation of the Bone Marrow Niche. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1212:127-153. [PMID: 31342461 DOI: 10.1007/5584_2019_398] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The bone marrow (BM) hematopoietic niche is the microenvironment where in the adult hematopoietic stem and progenitor cells (HSPCs) are maintained and regulated. This regulation is tightly controlled through direct cell-cell interactions with mesenchymal stromal stem (MSCs) and reticular cells, adipocytes, osteoblasts and endothelial cells, through binding to extracellular matrix molecules and through signaling by cytokines and hematopoietic growth factors. These interactions provide a healthy environment and secure the maintenance of the HSPC pool, their proliferation, differentiation and migration. Recent studies have shown that innervation of the BM and interactions with the peripheral sympathetic neural system are important for maintenance of the hematopoietic niche, through direct interactions with HSCPs or via interactions with other cells of the HSPC microenvironment. Signaling through adrenergic receptors (ARs), opioid receptors (ORs), endocannabinoid receptors (CRs) on HSPCs and MSCs has been shown to play an important role in HSPC homeostasis and mobilization. In addition, a wide range of neuropeptides and neurotransmitters, such as Neuropeptide Y (NPY), Substance P (SP) and Tachykinins, as well as neurotrophins and neuropoietic growth factors have been shown to be involved in regulation of the hematopoietic niche. Here, a comprehensive overview is given of their role and interactions with important cells in the hematopoietic niche, including HSPCs and MSCs, and their effect on HSPC maintenance, regulation and mobilization.
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Affiliation(s)
- Fatima Aerts-Kaya
- Graduate School of Health Sciences, Department of Stem Cell Sciences, Hacettepe University, Ankara, Turkey. .,Center for Stem Cell Research and Development, Hacettepe University, Ankara, Turkey.
| | - Baris Ulum
- Center for Stem Cell Research and Development, Hacettepe University, Ankara, Turkey.,Faculty of Arts and Sciences, Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Aynura Mammadova
- Graduate School of Health Sciences, Department of Stem Cell Sciences, Hacettepe University, Ankara, Turkey.,Center for Stem Cell Research and Development, Hacettepe University, Ankara, Turkey
| | - Sevil Köse
- Faculty of Health Sciences, Department of Medical Biology, Atilim University, Ankara, Turkey
| | - Gözde Aydin
- Graduate School of Health Sciences, Department of Stem Cell Sciences, Hacettepe University, Ankara, Turkey.,Center for Stem Cell Research and Development, Hacettepe University, Ankara, Turkey
| | - Petek Korkusuz
- Graduate School of Health Sciences, Department of Stem Cell Sciences, Hacettepe University, Ankara, Turkey.,Faculty of Medicine, Department of Histology and Embryology, Hacettepe University, Ankara, Turkey
| | - Duygu Uçkan-Çetinkaya
- Graduate School of Health Sciences, Department of Stem Cell Sciences, Hacettepe University, Ankara, Turkey.,Center for Stem Cell Research and Development, Hacettepe University, Ankara, Turkey
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39
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Zhao M, Wang Y, Li G, Li J, Yang K, Liu C, Wen X, Song J. The role and potential mechanism of p75NTR in mineralization via in vivo p75NTR knockout mice and in vitro ectomesenchymal stem cells. Cell Prolif 2020; 53:e12758. [PMID: 31922317 PMCID: PMC7048213 DOI: 10.1111/cpr.12758] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/03/2019] [Accepted: 12/19/2019] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE The aim of this study is to investigate the role and potential mechanism of p75NTR in mineralization in vivo using p75NTR-knockout mice and in vitro using ectomesenchymal stem cells (EMSCs). MATERIALS AND METHODS Femur bone mass and daily incisor mineralization speed were assessed in an in vivo p75NTR-knockout mouse model. The molecular signatures alkaline phosphatase (ALP), collagen type 1 (Col1), melanoma-associated antigen (Mage)-D1, bone sialoprotein (BSP), osteocalcin (OCN), osteopontin (OPN), distal-less homeobox 1 (Dlx1) and Msh homeobox 1 (Msx1) were examined in vitro in EMSCs isolated from p75NTR+/+ and p75NTRExIII-/- mice. RESULTS p75NTR-knockout mice were smaller in body size than heterozygous and wild-type mice. Micro-computed tomography and structural quantification showed that the osteogenic ability of p75NTRExIII -knockout mice was significantly decreased compared with that of wild-type mice (P < .05). Weaker ALP and alizarin red staining and reduced expression of ALP, Col1, Runx2, BSP, OCN and OPN were also observed in p75NTRExIII-/- EMSCs. Moreover, the distance between calcein fluorescence bands in p75NTRExIII -knockout mice was significantly smaller than that in wild type and heterozygous mice (P < .05), indicating the lower daily mineralization speed of incisors in p75NTRExIII -knockout mice. Further investigation revealed a positive correlation between p75NTR and Mage-D1, Dlx1, and Msx1. CONCLUSION p75NTR not only promotes osteogenic differentiation and tissue mineralization, but also shows a possible relationship with the circadian rhythm of dental hard tissue formation.
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Affiliation(s)
- Manzhu Zhao
- College of StomatologyChongqing Key Laboratory for Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher EducationChongqing Medical UniversityChongqingChina
| | - Yingying Wang
- Department of StomatologyDaping Hospital & Research Institute of SurgeryThird Military Medical UniversityChongqingChina
| | - Gang Li
- Department of StomatologyDaping Hospital & Research Institute of SurgeryThird Military Medical UniversityChongqingChina
| | - Jun Li
- Department of StomatologyDaping Hospital & Research Institute of SurgeryThird Military Medical UniversityChongqingChina
| | - Kun Yang
- Department of StomatologyDaping Hospital & Research Institute of SurgeryThird Military Medical UniversityChongqingChina
| | - Chang Liu
- College of StomatologyChongqing Key Laboratory for Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher EducationChongqing Medical UniversityChongqingChina
| | - Xiujie Wen
- Department of StomatologyDaping Hospital & Research Institute of SurgeryThird Military Medical UniversityChongqingChina
- Department of OrthodonticsHospital of StomatologySouthwest Medical UniversityLuzhouChina
| | - Jinlin Song
- College of StomatologyChongqing Key Laboratory for Oral Diseases and Biomedical SciencesChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher EducationChongqing Medical UniversityChongqingChina
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Pereira LMS, da Silva Graça Amoras E, da Silva Conde SRS, Demachki S, dos Santos EJM, Lima SS, Ishak R, Rosário Vallinoto AC. NGF (-198C > T, Ala35Val) and p75 NTR (Ser205Leu) gene mutations are associated with liver function in different histopathological profiles of the patients with chronic viral hepatitis in the Brazilian Amazon. Mol Med 2020; 26:12. [PMID: 31996124 PMCID: PMC6990582 DOI: 10.1186/s10020-019-0134-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 12/29/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUNDS Neural growth factor (NGF) is a neurotrophin that can interact with the p75NTR receptor and initiate a cascade of reactions that determines cell survival or death, and both are associated with the physiology of liver tissue. Single nucleotide polymorphisms (SNPs) in the NGF and p75NTR genes have been investigated in different pathologies; however, there are no studies that have analyzed their biological roles in the hepatic microenvironment. In the present study, we evaluated the impact of SNPs in these genes on the maintenance of liver function at different stages of inflammation and fibrosis in patients with chronic viral liver disease in the Brazilian Amazon. METHODS The SNPs -198C > T, Arg80Gln, Val72Met, Ala35Val, Ala18Ala and Ser205Leu were genotyped by real-time PCR in samples from patients with chronic viral hepatitis stratified by stage of inflammation and liver fibrosis. Histopathological, viral load (VL), liver enzyme and comorbidities data were obtained from updated medical records. Other aspects were highlighted by applied epidemiological questionnaires. RESULTS The -198C/T and Ala35Val polymorphisms in NGF were associated with changes in histopathological profiles, VL and liver enzymes. Ser205Leu polymorphism in p75NTR was associated only with changes in VL and liver enzymes. Polymorphic frequencies were variable among different ethnic populations, mainly for biologically relevant polymorphisms. A multifactorial network of interactions has been established based on genetic, virological, behavioral and biochemical aspects. CONCLUSION Mutations in the NGF (-198C > T, Ala35Val) and p75NTR (Ser205Leu) genes, within the list of multifactorial aspects, are associated with liver function in different histopathological profiles of patients with chronic viral liver disease in the Brazilian Amazon.
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Affiliation(s)
- Leonn Mendes Soares Pereira
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
| | | | | | - Sâmia Demachki
- School of Medicine, Health Science Institute, Federal University of Pará, Belém, Pará Brazil
| | - Eduardo José Melo dos Santos
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
- Laboartory of Human and Medical Genetics, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
| | - Sandra Souza Lima
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
| | - Ricardo Ishak
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
| | - Antonio Carlos Rosário Vallinoto
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
- Postgraduate Program in Biology of Infectious and Parasitic Agents, Biological Science Institute, Federal University of Pará, Belém, Pará Brazil
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Rosen EY, Goldman DA, Hechtman JF, Benayed R, Schram AM, Cocco E, Shifman S, Gong Y, Kundra R, Solomon JP, Bardelli A, Scaltriti M, Drilon A, Iasonos A, Taylor BS, Hyman DM. TRK Fusions Are Enriched in Cancers with Uncommon Histologies and the Absence of Canonical Driver Mutations. Clin Cancer Res 2019; 26:1624-1632. [PMID: 31871300 DOI: 10.1158/1078-0432.ccr-19-3165] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/14/2019] [Accepted: 12/19/2019] [Indexed: 01/19/2023]
Abstract
PURPOSE TRK inhibitors achieve marked tumor-agnostic efficacy in TRK fusion-positive cancers and consequently are now an established standard of care. Little is known, however, about the demographics, outcomes, response to alternative standard therapies, or genomic characteristics of TRK fusion-positive cancers. EXPERIMENTAL DESIGN Utilizing a center-wide screening program involving more than 26,000 prospectively sequenced patients, genomic and clinical data from all cases with TRK fusions were extracted. An integrated analysis was performed of genomic, therapeutic, and phenomic outcomes. RESULTS We identified 76 cases with confirmed TRK fusions (0.28% overall prevalence) involving 48 unique rearrangements and 17 cancer types. The presence of a TRK fusion was associated with depletion of concurrent oncogenic drivers (P < 0.001) and lower tumor mutation burden (P < 0.001), with the exception of colorectal cancer where TRK fusions cooccur with microsatellite instability (MSI-H). Longitudinal profiling in a subset of patients indicated that TRK fusions were present in all sampled timepoints in 82% (14/17) of cases. Progression-free survival on first-line therapy, excluding TRK inhibitors, administered for advanced disease was 9.6 months [95% confidence interval (CI), 4.8-13.2]. The best overall response rate achieved with chemotherapy containing-regimens across all lines of therapy was 63% (95% CI, 41-81). Among 12 patients treated with checkpoint inhibitors, a patient with MSI-H colorectal cancer had the only observed response. CONCLUSIONS TRK fusion-positive cancers can respond to alternative standards of care, although efficacy of immunotherapy in the absence of other predictive biomarkers (MSI-H) appears limited. TRK fusions are present in tumors with simple genomes lacking in concurrent drivers that may partially explain the tumor-agnostic efficacy of TRK inhibitors.
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Affiliation(s)
- Ezra Y Rosen
- Department of Medicine, Memorial Sloan Kettering, New York, New York
| | - Debra A Goldman
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering, New York, New York
| | - Jaclyn F Hechtman
- Department of Pathology, Memorial Sloan Kettering, New York, New York
| | - Ryma Benayed
- Department of Pathology, Memorial Sloan Kettering, New York, New York
| | - Alison M Schram
- Department of Medicine, Memorial Sloan Kettering, New York, New York.,Weill Cornell Medical College, New York, New York
| | - Emiliano Cocco
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering, New York, New York
| | - Sophie Shifman
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering, New York, New York
| | - Yixiao Gong
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering, New York, New York
| | - Ritika Kundra
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering, New York, New York
| | - James P Solomon
- Department of Pathology, Memorial Sloan Kettering, New York, New York
| | - Alberto Bardelli
- Candiolo Cancer Institute FPO-IRCCS, Candiolo, Italy.,Department of Oncology, University of Torino, Candiolo, Italy
| | - Maurizio Scaltriti
- Department of Pathology, Memorial Sloan Kettering, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan Kettering, New York, New York
| | - Alexander Drilon
- Department of Medicine, Memorial Sloan Kettering, New York, New York.,Weill Cornell Medical College, New York, New York
| | - Alexia Iasonos
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering, New York, New York.,Weill Cornell Medical College, New York, New York
| | - Barry S Taylor
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering, New York, New York.,Weill Cornell Medical College, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan Kettering, New York, New York.,Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering, New York, New York
| | - David M Hyman
- Department of Medicine, Memorial Sloan Kettering, New York, New York. .,Weill Cornell Medical College, New York, New York
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The Impact of Kinases in Amyotrophic Lateral Sclerosis at the Neuromuscular Synapse: Insights into BDNF/TrkB and PKC Signaling. Cells 2019; 8:cells8121578. [PMID: 31817487 PMCID: PMC6953086 DOI: 10.3390/cells8121578] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/19/2019] [Accepted: 12/03/2019] [Indexed: 12/14/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) promotes neuron survival in adulthood in the central nervous system. In the peripheral nervous system, BDNF is a contraction-inducible protein that, through its binding to tropomyosin-related kinase B receptor (TrkB), contributes to the retrograde neuroprotective control done by muscles, which is necessary for motor neuron function. BDNF/TrkB triggers downstream presynaptic pathways, involving protein kinase C, essential for synaptic function and maintenance. Undeniably, this reciprocally regulated system exemplifies the tight communication between nerve terminals and myocytes to promote synaptic function and reveals a new view about the complementary and essential role of pre and postsynaptic interplay in keeping the synapse healthy and strong. This signaling at the neuromuscular junction (NMJ) could establish new intervention targets across neuromuscular diseases characterized by deficits in presynaptic activity and muscle contractility and by the interruption of the connection between nervous and muscular tissues, such as amyotrophic lateral sclerosis (ALS). Indeed, exercise and other therapies that modulate kinases are effective at delaying ALS progression, preserving NMJs and maintaining motor function to increase the life quality of patients. Altogether, we review synaptic activity modulation of the BDNF/TrkB/PKC signaling to sustain NMJ function, its and other kinases’ disturbances in ALS and physical and molecular mechanisms to delay disease progression.
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Torres-Cruz FM, Mendoza E, Vivar-Cortés IC, García-Sierra F, Hernández-Echeagaray E. Do BDNF and NT-4/5 exert synergistic or occlusive effects on corticostriatal transmission in a male mouse model of Huntington's disease? J Neurosci Res 2019; 97:1665-1677. [PMID: 31392756 DOI: 10.1002/jnr.24507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/12/2019] [Accepted: 07/22/2019] [Indexed: 12/14/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) and neurotrophin-4/5 (NT-4/5) are trophic factors belonging to the neurotrophin family; in addition to their trophic role, both neurotrophins play an important role in modulating corticostriatal synaptic transmission. Failures in BDNF supply and mitochondrial dysfunction are among the factors involved in the striatal degeneration that occurs in Huntington's disease (HD). While the effects of BDNF have been widely studied in striatal degeneration, the role of NT-4/5 has been less addressed. NT-4/5 does not appear to exert effects similar to those of BDNF in HD. The physiological roles of these molecules in corticostriatal transmission have been evaluated separately, and we have demonstrated that sequential exposure to both neurotrophins results in different modulatory effects on corticostriatal transmission depending on the exposure order. In the present study, we evaluated the effects of BDNF followed by NT-4/5 or NT-4/5 followed by BDNF on corticostriatal synaptic transmission with field recordings in a male mouse model of HD produced by in vivo treatment with the mitochondrial toxin 3-nitropropionic acid. Here, we show that these neurotrophins elicit an antagonistic or synergistic effect that depends on the activation of the truncated isoform or the stimulation of the full-length isoform of the tropomyosin receptor kinase B.
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Affiliation(s)
- Francisco M Torres-Cruz
- Laboratorio de Neurofisiología del desarrollo y la neurodegeneración, Unidad de Investigación en Biomedicina FES-Iztacala, Universidad Nacional Autónoma de México, México, México
| | - Ernesto Mendoza
- Laboratorio de Neurofisiología del desarrollo y la neurodegeneración, Unidad de Investigación en Biomedicina FES-Iztacala, Universidad Nacional Autónoma de México, México, México
| | - Israel C Vivar-Cortés
- Laboratorio de Neurofisiología del desarrollo y la neurodegeneración, Unidad de Investigación en Biomedicina FES-Iztacala, Universidad Nacional Autónoma de México, México, México
| | | | - Elizabeth Hernández-Echeagaray
- Laboratorio de Neurofisiología del desarrollo y la neurodegeneración, Unidad de Investigación en Biomedicina FES-Iztacala, Universidad Nacional Autónoma de México, México, México
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CD271 promotes STZ-induced diabetic wound healing and regulates epidermal stem cell survival in the presence of the pTrkA receptor. Cell Tissue Res 2019; 379:181-193. [PMID: 31768712 DOI: 10.1007/s00441-019-03125-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 09/22/2019] [Indexed: 12/12/2022]
Abstract
Diabetes mellitus (DM) often causes delayed wound healing in patients, which can lead to limb loss, disability, and even death. Many conventional therapeutic strategies have been proposed, but there is still no effective therapy for DM wounds. This study aimed to explore the effects of CD271 and phosphorylated tyrosine kinase receptor A (pTrkA) on the migration and proliferation abilities of epidermal stem cells (eSCs) and on the activation of DM wound healing. We investigated the interventional effects of CD271-overexpressing eSC (CD271 eSC) treatment and pTrkA inhibition (through k252a treatment) on delayed wound healing using mice with streptozotocin-induced DM. The migration and proliferation abilities of control eSCs, CD271 eSCs, and k252a-treated CD271 eSCs were observed under high-glucose conditions. Decreases in CD271 and increases in pTrkA were observed in DM mouse skin compared with control mouse skin; in addition, the rate of wound closure in DM mice was promoted by CD271 eSC treatment but delayed by pTrkA inhibition. Furthermore, the CD271 eSC migration and proliferation were greater than of control eSCs. Compared with that of CD271 eSCs, the number of CD271+k252a eSCs decreased significantly under high-glucose conditions. In parallel, the expression levels of the pERK, pAkt, and pJNK pathways increased in CD271 eSCs and decreased in CD271+k252a eSCs under high glucose. Our findings demonstrate that CD271 and pTrkA affect DM wound closure by promoting the eSC migration and proliferation. This mechanism involving the pERK, pAkt, and pJNK pathways might be a new therapeutic target for the treatment of delayed wound re-epithelialization in DM.
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Zanin JP, Montroull LE, Volosin M, Friedman WJ. The p75 Neurotrophin Receptor Facilitates TrkB Signaling and Function in Rat Hippocampal Neurons. Front Cell Neurosci 2019; 13:485. [PMID: 31736712 PMCID: PMC6828739 DOI: 10.3389/fncel.2019.00485] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 10/14/2019] [Indexed: 01/02/2023] Open
Abstract
Neurotrophins activate Trk receptor signaling to support neuronal survival and many aspects of neuronal function. Early studies demonstrated that TrkA formed a complex with the p75 neurotrophin receptor (p75NTR), which increased the affinity and selectivity of NGF binding, however, whether interaction of p75NTR with other Trk receptors performs a similar function to enhance ligand binding has not been demonstrated. We investigated the interaction of TrkB with full length p75NTR in hippocampal neurons in response to BDNF and found that the association of these receptors occurs after ligand binding and requires phosphorylation of TrkB, indicating that formation of this receptor complex was not necessary for ligand binding. Moreover, the interaction of these receptors required internalization and localization to early endosomes. We found that association of TrkB with p75NTR was necessary for optimal downstream signaling of the PI3K-Akt pathway, but not the Erk pathway, in hippocampal neurons. The absence of p75NTR impaired the ability of BDNF to rescue hippocampal neurons in a trophic deprivation model, suggesting that p75NTR facilitates the ability of TrkB to activate specific pathways to promote neuronal survival.
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Affiliation(s)
- Juan P Zanin
- Department of Biological Sciences, Rutgers University, Newark, NJ, United States
| | - Laura E Montroull
- Department of Biological Sciences, Rutgers University, Newark, NJ, United States
| | - Marta Volosin
- Department of Biological Sciences, Rutgers University, Newark, NJ, United States
| | - Wilma J Friedman
- Department of Biological Sciences, Rutgers University, Newark, NJ, United States
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Liu Z, Cao Y, Liu G, Yin S, Ma J, Liu J, Zhang M, Wang Y. p75 neurotrophin receptor regulates NGF-induced myofibroblast differentiation and collagen synthesis through MRTF-A. Exp Cell Res 2019; 383:111504. [PMID: 31325438 DOI: 10.1016/j.yexcr.2019.111504] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/02/2019] [Accepted: 07/15/2019] [Indexed: 02/09/2023]
Abstract
Myofibroblasts are characterized by de novo expression of α-smooth muscle actin (α-SMA) and play a key role in tissue repair and remodeling. In addition to TGF-β1, recent studies have shown that nerve growth factor (NGF) has effects on myofibroblast differentiation and collagen synthesis. However, the regulatory mechanism remains poorly defined. NGF effects are mediated by the specific expression of the NGF neurotrophic tropomyosin-receptor kinase A (TrkA) and p75 neurotrophin receptor (p75NTR). Using NIH/3T3 fibroblast cell lines, we examined the induction of myofibroblast differentiation stimulated by NGF. Our findings showed that p75NTR was in keeping with the expression of α-SMA. Herein, we investigated the role of p75NTR in NGF-induced myofibroblast differentiation and collagen synthesis in these cells using lentivirus transfection to overexpress and knock down. Our results showed that p75NTR was preferentially expressed and was sufficient to induce actin cytoskeleton remodeling, which was required for NGF-induced α-SMA expression. Furthermore, NGF induced nuclear translocation of MRTF-A, an effect that was regulated by p75NTR, and required for α-SMA and collagen-I expression in myofibroblasts. Using a novel MRTF-A pathway inhibitor, CCG-203971, we further demonstrated the requirement of MRTF-A nuclear localization and activity in NGF-induced α-SMA expression. In conclusion, we conclude that p75NTR regulates NGF-induced myofibroblast differentiation and collagen synthesis through MRTF-A. Regulation of NGF-p75NTR interactions represents a promising therapy for fibrotic disorders.
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Affiliation(s)
- Zhenxing Liu
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China
| | - Yongqian Cao
- Department of Burns and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
| | - Guijun Liu
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China
| | - Siyuan Yin
- Department of Burns and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
| | - Jiaxu Ma
- Department of Burns and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
| | - Jian Liu
- Department of Burns and Plastic Surgery, Yantai Yuhuangding Hospital, Yantai, 264000, Shandong, China
| | - Min Zhang
- Department of Burns and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China
| | - Yibing Wang
- Department of Burns and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China.
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Knockout of p75 neurotrophin receptor attenuates the hyperphosphorylation of Tau in pR5 mouse model. Aging (Albany NY) 2019; 11:6762-6791. [PMID: 31479419 PMCID: PMC6756909 DOI: 10.18632/aging.102202] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 08/12/2019] [Indexed: 02/02/2023]
Abstract
p75 neurotrophin receptor (p75NTR) has been implicated in Alzheimer's disease (AD). However, whether p75NTR is involved in Tau hyperphosphorylation, one of the pathologies observed in AD, remains unclear. In our previous study, the extracellular domain of p75NTR blocked amyloid beta (Aβ) toxicity and attenuated Aβ-induced Tau hyperphosphorylation. Here we show that, in the absence of Aβ, p75NTR regulates Tau phosphorylation in the transgenic mice with the P301L human Tau mutation (pR5). The knockout of p75NTR in pR5 mice attenuated the phosphorylation of human Tau. In addition, the elevated activity of kinases responsible for Tau phosphorylation including glycogen synthase kinase 3 beta; cyclin-dependent-kinase 5; and Rho-associated protein kinase was also inhibited when p75NTR is knocked out in pR5 mice at 9 months of age. The increased caspase-3 activity observed in pR5 mice was also abolished in the absence of p75NTR. Our study also showed that p75NTR is required for Aβ- and pro-brain derived neurotrophin factor (proBDNF)-induced Tau phosphorylation, in vitro. Overall, our data indicate that p75NTR is required for Tau phosphorylation, a key event in the formation of neurofibrillary tangles, another hallmark of AD. Thus, targeting p75NTR could reduce or prevent the pathologic hyperphosphorylation of Tau.
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TrkB agonistic antibodies superior to BDNF: Utility in treating motoneuron degeneration. Neurobiol Dis 2019; 132:104590. [PMID: 31470106 DOI: 10.1016/j.nbd.2019.104590] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 08/18/2019] [Accepted: 08/26/2019] [Indexed: 12/13/2022] Open
Abstract
While Brain-derived Neurotrophic Factor (BDNF) has long been implicated in treating neurological diseases, recombinant BDNF protein has failed in multiple clinical trials. In addition to its unstable and adhesive nature, BDNF can activate p75NTR, a receptor mediating cellular functions opposite to those of TrkB. We have now identified TrkB agonistic antibodies (TrkB-agoAbs) with several properties superior to BDNF: They exhibit blood half-life of days instead of hours, diffuse centimeters in neural tissues instead millimeters, and bind and activate TrkB, but not p75NTR. In addition, TrkB-agoAbs elicit much longer TrkB activation, reduced TrkB internalization and less intracellular degradation, compared with BDNF. More importantly, some of these TrkB-agoAbs bind TrkB epitopes distinct from that by BDNF, and work cooperatively with endogenous BDNF. Unlike BDNF, the TrkB-agoAbs exhibit a half-life of days/weeks and diffused readily in nerve tissues. We tested one of TrkB-agoAbs further and showed that it enhanced motoneuron survival in the spinal-root avulsion model for motoneuron degeneration in vivo. Thus, TrkB-agoAbs are promising drug candidates for the treatment of neural injury.
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Abstract
In spite of the high metabolic cost of cellular production, the brain contains only a fraction of the neurons generated during embryonic development. In the rodent cerebral cortex, a first wave of programmed cell death surges at embryonic stages and affects primarily progenitor cells. A second, larger wave unfolds during early postnatal development and ultimately determines the final number of cortical neurons. Programmed cell death in the developing cortex is particularly dependent on neuronal activity and unfolds in a cell-specific manner with precise temporal control. Pyramidal cells and interneurons adjust their numbers in sync, which is likely crucial for the establishment of balanced networks of excitatory and inhibitory neurons. In contrast, several other neuronal populations are almost completely eliminated through apoptosis during the first two weeks of postnatal development, highlighting the importance of programmed cell death in sculpting the mature cerebral cortex.
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Affiliation(s)
- Fong Kuan Wong
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, United Kingdom; .,MRC Centre for Neurodevelopmental Disorders, King's College London, London SE1 1UL, United Kingdom
| | - Oscar Marín
- Centre for Developmental Neurobiology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE1 1UL, United Kingdom; .,MRC Centre for Neurodevelopmental Disorders, King's College London, London SE1 1UL, United Kingdom
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50
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Mufson EJ, Counts SE, Ginsberg SD, Mahady L, Perez SE, Massa SM, Longo FM, Ikonomovic MD. Nerve Growth Factor Pathobiology During the Progression of Alzheimer's Disease. Front Neurosci 2019; 13:533. [PMID: 31312116 PMCID: PMC6613497 DOI: 10.3389/fnins.2019.00533] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 05/08/2019] [Indexed: 12/12/2022] Open
Abstract
The current review summarizes the pathobiology of nerve growth factor (NGF) and its cognate receptors during the progression of Alzheimer's disease (AD). Both transcript and protein data indicate that cholinotrophic neuronal dysfunction is related to an imbalance between TrkA-mediated survival signaling and the NGF precursor (proNGF)/p75NTR-mediated pro-apoptotic signaling, which may be related to alteration in the metabolism of NGF. Data indicate a spatiotemporal pattern of degeneration related to the evolution of tau pathology within cholinotrophic neuronal subgroups located within the nucleus basalis of Meynert (nbM). Despite these degenerative events the cholinotrophic system is capable of cellular resilience and/or plasticity during the prodromal and later stages of the disease. In addition to neurotrophin dysfunction, studies indicate alterations in epigenetically regulated proteins occur within cholinotrophic nbM neurons during the progression of AD, suggesting a mechanism that may underlie changes in transcript expression. Findings that increased cerebrospinal fluid levels of proNGF mark the onset of MCI and the transition to AD suggests that this proneurotrophin is a potential disease biomarker. Novel therapeutics to treat NGF dysfunction include NGF gene therapy and the development of small molecule agonists for the cognate prosurvival NGF receptor TrkA and antagonists against the pan-neurotrophin p75NTR death receptor for the treatment of AD.
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Affiliation(s)
- Elliott J. Mufson
- Department of Neurobiology and Neurology, Department of Neurobiology, and Department of Neurological Sciences, Alzheimer’s Disease Laboratory, Barrow Neurological Institute, St. Joseph’s Medical Center, Phoenix, AZ, United States
| | - Scott E. Counts
- Translational Science and Molecular Medicine Michigan State University College of Human Medicine, Grand Rapids, MI, United States
| | - Stephen D. Ginsberg
- Center for Dementia Research, Nathan Kline Institute, Orangeburg, NY, United States
- Department of Psychiatry, Department of Neuroscience, and Physiology and NYU Neuroscience Institute, New York University Langone Medical Center, New York, NY, United States
| | - Laura Mahady
- Department of Neurobiology and Neurology, Department of Neurobiology, and Department of Neurological Sciences, Alzheimer’s Disease Laboratory, Barrow Neurological Institute, St. Joseph’s Medical Center, Phoenix, AZ, United States
| | - Sylvia E. Perez
- Department of Neurobiology and Neurology, Department of Neurobiology, and Department of Neurological Sciences, Alzheimer’s Disease Laboratory, Barrow Neurological Institute, St. Joseph’s Medical Center, Phoenix, AZ, United States
| | - Stephen M. Massa
- Department of Neurology, San Francisco VA Health Care System, University of California, San Francisco, San Francisco, CA, United States
| | - Frank M. Longo
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, United States
| | - Milos D. Ikonomovic
- Department of Neurology and Department of Psychiatry, Geriatric Research Education and Clinical Center, VA Pittsburgh Healthcare System, University of Pittsburgh, Pittsburgh, PA, United States
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