1
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Xie Y, Cao J, Gan S, Xu L, Zhang D, Qian S, Xu F, Ding Q, Schoggins JW, Fan W. TRIM32 inhibits Venezuelan Equine Encephalitis Virus Infection by targeting a late step in viral entry. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.04.597282. [PMID: 38895352 PMCID: PMC11185716 DOI: 10.1101/2024.06.04.597282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Alphaviruses are mosquito borne RNA viruses that are a reemerging public health threat. Alphaviruses have a broad host range, and can cause diverse disease outcomes like arthritis, and encephalitis. The host ubiquitin proteasome system (UPS) plays critical roles in regulating cellular processes to control the infections with various viruses, including alphaviruses. Previous studies suggest alphaviruses hijack UPS for virus infection, but the molecular mechanisms remain poorly characterized. In addition, whether certain E3 ubiquitin ligases or deubiquitinases act as alphavirus restriction factors remains poorly understood. Here, we employed a cDNA expression screen to identify E3 ubiquitin ligase TRIM32 as a novel intrinsic restriction factor against alphavirus infection, including VEEV-TC83, SINV, and ONNV. Ectopic expression of TRIM32 reduces alphavirus infection, whereas depletion of TRIM32 with CRISPR-Cas9 increases infection. We demonstrate that TRIM32 inhibits alphaviruses through a mechanism that is independent of the TRIM32-STING-IFN axis. Combining reverse genetics and biochemical assays, we found that TRIM32 interferes with genome translation after membrane fusion, prior to replication of the incoming viral genome. Furthermore, our data indicate that the monoubiquitination of TRIM32 is important for its antiviral activity. Notably, we also show two TRIM32 pathogenic mutants R394H and D487N, related to Limb-girdle muscular dystrophy (LGMD), have a loss of antiviral activity against VEEV-TC83. Collectively, these results reveal that TRIM32 acts as a novel intrinsic restriction factor suppressing alphavirus infection and provides insights into the interaction between alphaviruses and the host UPS.
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Affiliation(s)
- Yifan Xie
- Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Jie Cao
- Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Shuyi Gan
- Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Lingdong Xu
- Laboratory Animal Center, Zhejiang University, Hangzhou, China
| | - Dongjie Zhang
- Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Suhong Qian
- Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Feng Xu
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Research Center for Life Science and Human Health, Binjiang Institute of Zhejiang University, Hangzhou, China
| | - Qiang Ding
- School of Medical Sciences, Tsinghua University, Beijing, China
| | - John W. Schoggins
- Department of Microbiology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Wenchun Fan
- Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
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2
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Liu X, Liu H, Gu N, Pei J, Lin X, Zhao W. Preeclampsia promotes autism in offspring via maternal inflammation and fetal NFκB signaling. Life Sci Alliance 2023; 6:e202301957. [PMID: 37290815 PMCID: PMC10250690 DOI: 10.26508/lsa.202301957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/28/2023] [Accepted: 05/30/2023] [Indexed: 06/10/2023] Open
Abstract
Preeclampsia (PE) is a risk factor for autism spectrum disorder (ASD) in offspring. However, the exact mechanisms underlying the impact of PE on progeny ASD are not fully understood, which hinders the development of effective therapeutic approaches. This study shows the offspring born to a PE mouse model treated by Nω-nitro-L-arginine methyl ester (L-NAME) exhibit ASD-like phenotypes, including neurodevelopment deficiency and behavioral abnormalities. Transcriptomic analysis of the embryonic cortex and adult offspring hippocampus suggested the expression of ASD-related genes was dramatically changed. Furthermore, the level of inflammatory cytokines TNFα in maternal serum and nuclear factor kappa B (NFκB) signaling in the fetal cortex were elevated. Importantly, TNFα neutralization during pregnancy enabled to ameliorate ASD-like phenotypes and restore the NFκB activation level in the offspring exposed to PE. Furthermore, TNFα/NFκB signaling axis, but not L-NAME, caused deficits in neuroprogenitor cell proliferation and synaptic development. These experiments demonstrate that offspring exposed to PE phenocopies ASD signatures reported in humans and indicate therapeutic targeting of TNFα decreases the likelihood of bearing children with ASD phenotypes from PE mothers.
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Affiliation(s)
- Xueyuan Liu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Environmental and Occupational Health Science Institute, Rutgers University, Piscataway, NJ, USA
| | - Haiyan Liu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Nihao Gu
- International Peace Maternity & Child Health Hospital Affiliated to Shanghai Jiao Tong University School of Medicine and Shanghai Key Laboratory for Embryo-Feta Original Adult Disease, Shanghai Jiao Tong University, Shanghai, China
| | - Jiangnan Pei
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Xianhua Lin
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Wenlong Zhao
- Environmental and Occupational Health Science Institute, Rutgers University, Piscataway, NJ, USA
- International Peace Maternity & Child Health Hospital Affiliated to Shanghai Jiao Tong University School of Medicine and Shanghai Key Laboratory for Embryo-Feta Original Adult Disease, Shanghai Jiao Tong University, Shanghai, China
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3
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Chen S, Wang S. The immune mechanism of the nasal epithelium in COVID-19-related olfactory dysfunction. Front Immunol 2023; 14:1045009. [PMID: 37529051 PMCID: PMC10387544 DOI: 10.3389/fimmu.2023.1045009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 06/29/2023] [Indexed: 08/03/2023] Open
Abstract
During the first waves of the coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, olfactory dysfunction (OD) was reported as a frequent clinical sign. The nasal epithelium is one of the front-line protections against viral infections, and the immune responses of the nasal mucosa may be associated with OD. Two mechanisms underlying OD occurrence in COVID-19 have been proposed: the infection of sustentacular cells and the inflammatory reaction of the nasal epithelium. The former triggers OD and the latter likely prolongs OD. These two alternative mechanisms may act in parallel; the infection of sustentacular cells is more important for OD occurrence because sustentacular cells are more likely to be the entry point of SARS-CoV-2 than olfactory neurons and more susceptible to early injury. Furthermore, sustentacular cells abundantly express transmembrane protease, serine 2 (TMPRSS2) and play a major role in the olfactory epithelium. OD occurrence in COVID-19 has revealed crucial roles of sustentacular cells. This review aims to elucidate how immune responses of the nasal epithelium contribute to COVID-19-related OD. Understanding the underlying immune mechanisms of the nasal epithelium in OD may aid in the development of improved medical treatments for COVID-19-related OD.
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Affiliation(s)
| | - Shufen Wang
- *Correspondence: Shunmei Chen, ; Shufen Wang,
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4
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Hu M, Bodnar B, Zhang Y, Xie F, Li F, Li S, Zhao J, Zhao R, Gedupoori N, Mo Y, Lin L, Li X, Meng W, Yang X, Wang H, Barbe MF, Srinivasan S, Bethea JR, Mo X, Xu H, Hu W. Defective neurite elongation and branching in Nibp/Trappc9 deficient zebrafish and mice. Int J Biol Sci 2023; 19:3226-3248. [PMID: 37416774 PMCID: PMC10321293 DOI: 10.7150/ijbs.78489] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 06/06/2023] [Indexed: 07/08/2023] Open
Abstract
Loss of function in transport protein particles (TRAPP) links a new set of emerging genetic disorders called "TRAPPopathies". One such disorder is NIBP syndrome, characterized by microcephaly and intellectual disability, and caused by mutations of NIBP/TRAPPC9, a crucial and unique member of TRAPPII. To investigate the neural cellular/molecular mechanisms underlying microcephaly, we developed Nibp/Trappc9-deficient animal models using different techniques, including morpholino knockdown and CRISPR/Cas mutation in zebrafish and Cre/LoxP-mediated gene targeting in mice. Nibp/Trappc9 deficiency impaired the stability of the TRAPPII complex at actin filaments and microtubules of neurites and growth cones. This deficiency also impaired elongation and branching of neuronal dendrites and axons, without significant effects on neurite initiation or neural cell number/types in embryonic and adult brains. The positive correlation of TRAPPII stability and neurite elongation/branching suggests a potential role for TRAPPII in regulating neurite morphology. These results provide novel genetic/molecular evidence to define patients with a type of non-syndromic autosomal recessive intellectual disability and highlight the importance of developing therapeutic approaches targeting the TRAPPII complex to cure TRAPPopathies.
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Affiliation(s)
- Min Hu
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Brittany Bodnar
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Yonggang Zhang
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Chengdu 610052, China
| | - Fangxin Xie
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Chengdu 610052, China
- Department of Clinical Laboratory, Xi'an NO. 3 Hospital, Xi'an, Shaanxi, 710018, China
| | - Fang Li
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Siying Li
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Jin Zhao
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Ruotong Zhao
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Naveen Gedupoori
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Yifan Mo
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Lanyi Lin
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Xue Li
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Wentong Meng
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Xiaofeng Yang
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Hong Wang
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Mary F. Barbe
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Shanthi Srinivasan
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - John R. Bethea
- Department of Biology, Drexel University, Philadelphia, PA, USA
| | - Xianming Mo
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Hong Xu
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Wenhui Hu
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
- Center for Metabolic Disease Research, Department of Pathalogy and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
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5
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Xiao Y, Hu M, Lin Q, Zhang T, Li S, Shu L, Song X, Xu X, Meng W, Li X, Xu H, Mo X. Dopey2 and Pcdh7 orchestrate the development of embryonic neural stem cells/ progenitors in zebrafish. iScience 2023; 26:106273. [PMID: 36936789 PMCID: PMC10014312 DOI: 10.1016/j.isci.2023.106273] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 01/18/2023] [Accepted: 02/20/2023] [Indexed: 02/27/2023] Open
Abstract
DOPEY2 has been shown to be associated with Down syndrome and PCDH7 might be involved in Rett syndrome and MECP2 duplication syndrome. The mechanism how both proteins play roles in these syndromes are largely unknown. Here, we show that Dopey2 and Pcdh7 balance the proliferation and differentiation of neural stem cells and progenitors during embryonic neurogenesis to generate proper size and architecture of zebrafish brains. Dopey2 and Pcdh7 mutually restricted expression of each other in zebrafish embryos. Dopey2 was responsible for the proliferation of neural stem cells/progenitors, whereas Pcdh7 was responsible for the differentiation of neural stem cells/progenitors. Both proteins were shown to orchestrate the proper development and arrangement of neural cells in zebrafish embryonic brains. The results provide an insight into mechanisms to understand how the embryonic brain is constituted and how developmental defects occur in the brains of patients with Down syndrome, Rett syndrome, or MECP2 duplication syndrome.
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Affiliation(s)
- Yue Xiao
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Min Hu
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Qiyan Lin
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Ting Zhang
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Siying Li
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Linjuan Shu
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Xiuli Song
- Hangzhou HuaAn Biotechnology Co.Ltd, Hangzhou, China
| | - Xiaoyong Xu
- Hangzhou HuaAn Biotechnology Co.Ltd, Hangzhou, China
| | - Wentong Meng
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Xue Li
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Hong Xu
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Xianming Mo
- Department of Pediatric Surgery, Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
- Corresponding author
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6
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Razmara P, Pyle GG. Impact of Copper Nanoparticles and Copper Ions on Transcripts Involved in Neural Repair Mechanisms in Rainbow Trout Olfactory Mucosa. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 84:18-31. [PMID: 36525054 DOI: 10.1007/s00244-022-00969-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Olfactory mucosa is well known for its lifelong ability for regeneration. Regeneration of neurons and regrowth of severed axons are the most common neural repair mechanisms in olfactory mucosa. Nonetheless, exposure to neurotoxic contaminants, such as copper nanoparticles (CuNPs) and copper ions (Cu2+), may alter the reparative capacity of olfactory mucosa. Here, using RNA-sequencing, we investigated the molecular basis of neural repair mechanisms that were affected by CuNPs and Cu2+ in rainbow trout olfactory mucosa. The transcript profile of olfactory mucosa suggested that regeneration of neurons was inhibited by CuNPs. Exposure to CuNPs reduced the transcript abundances of pro-inflammatory proteins which are required to initiate neuroregeneration. Moreover, the transcript of genes encoding regeneration promoters, including canonical Wnt/β-catenin signaling proteins and developmental transcription factors, were downregulated in the CuNP-treated fish. The mRNA levels of genes regulating axonal regrowth, including the growth-promoting signals secreted from olfactory ensheathing cells, were mainly increased in the CuNP treatment. However, the reduced transcript abundances of a few cell adhesion molecules and neural polarity genes may restrict axonogenesis in the CuNP-exposed olfactory mucosa. In the Cu2+-treated olfactory mucosa, both neural repair strategies were initiated at the transcript level. The stimulation of repair mechanisms can lead to the recovery of Cu2+-induced olfactory dysfunction. These results indicated CuNPs and Cu2+ differentially affected the neural repair mechanism in olfactory mucosa. Exposure to CuNP had greater effects on the expression of genes involved in olfactory repair mechanisms relative to Cu2+ and dysregulated the transcripts associated with stem cell proliferation and neural reconstitution.
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Affiliation(s)
- Parastoo Razmara
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada.
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada.
| | - Gregory G Pyle
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada
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7
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Hu Y, Zhang B, Lu P, Wang J, Chen C, Yin Y, Wan Q, Wang J, Jiao J, Fang X, Pu Z, Gong L, Ji L, Zhu L, Zhang R, Zhang J, Yang X, Wang Q, Huang Z, Zou J. The positive regulatory loop of TCF4N/p65 promotes glioblastoma tumourigenesis and chemosensitivity. Clin Transl Med 2022; 12:e1042. [PMID: 36116131 PMCID: PMC9482802 DOI: 10.1002/ctm2.1042] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 08/12/2022] [Accepted: 08/22/2022] [Indexed: 11/25/2022] Open
Abstract
Background NF‐κB signaling is widely linked to the pathogenesis and treatment resistance in cancers. Increasing attention has been paid to its anti‐oncogenic roles, due to its key functions in cellular senescence and the senescence‐associated secretory phenotype (SASP). Therefore, thoroughly understanding the function and regulation of NF‐κB in cancers is necessary prior to the application of NF‐κB inhibitors. Methods We established glioblastoma (GBM) cell lines expressing ectopic TCF4N, an isoform of the β‐catenin interacting transcription factor TCF7L2, and evaluated its functions in GBM tumorigenesis and chemotherapy in vitro and in vivo. In p65 knock‐out or phosphorylation mimic (S536D) cell lines, the dual role and correlation of TCF4N and NF‐κB signaling in promoting tumorigenesis and chemosensitivity was investigated by in vitro and in vivo functional experiments. RNA‐seq and computational analysis, immunoprecipitation and ubiquitination assay, minigene splicing assay and luciferase reporter assay were performed to identify the underlying mechanism of positive feedback regulation loop between TCF4N and the p65 subunit of NF‐κB. A eukaryotic cell‐penetrating peptide targeting TCF4N, 4N, was used to confirm the therapeutic significance. Results Our results indicated that p65 subunit phosphorylation at Ser 536 (S536) and nuclear accumulation was a promising prognostic marker for GBM, and endowed the dual functions of NF‐κB in promoting tumorigenesis and chemosensitivity. p65 S536 phosphorylation and nuclear stability in GBM was regulated by TCF4N. TCF4N bound p65, induced p65 phosphorylation and nuclear translocation, inhibited its ubiquitination/degradation, and subsequently promoted NF‐κB activity. p65 S536 phosphorylation was essential for TCF4N‐led senescence‐independent SASP, GBM tumorigenesis, tumor stem‐like cell differentiation and chemosensitivity. Activation of p65 was closely connected to alterative splicing of TCF4N, a likely positive feedback regulation loop between TCF4N and p65 in GBM. 4N increased chemosensitivity, highlighting a novel anti‐cancer strategy. Conclusion Our study defined key roles of TCF4N as a novel regulator of NF‐κB through mutual regulation with p65 and provided a new avenue for GBM inhibition.
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Affiliation(s)
- Yaling Hu
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Bo Zhang
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Peihua Lu
- Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China.,Department of Medical Oncology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Jingying Wang
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Clinical Laboratory, Taixing People's Hospital, Taizhou, Jiangsu, China
| | - Cheng Chen
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Ying Yin
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Quan Wan
- Department of Neurosurgery, The Affiliated Wuxi Second People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Jingjing Wang
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Jiantong Jiao
- Department of Neurosurgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Xiangming Fang
- Department of Radiology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Zhening Pu
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Lingli Gong
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Li Ji
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Lingpeng Zhu
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Rui Zhang
- Department of Neurosurgery, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Jia Zhang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Xusheng Yang
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Qing Wang
- Department of Neurosurgery, The Affiliated Wuxi Second People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Zhaohui Huang
- Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China.,Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Jian Zou
- Department of Laboratory Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China.,Center for Translational Medicine, Jiangnan University, Wuxi, Jiangsu, China
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8
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Perri P, Ponzoni M, Corrias MV, Ceccherini I, Candiani S, Bachetti T. A Focus on Regulatory Networks Linking MicroRNAs, Transcription Factors and Target Genes in Neuroblastoma. Cancers (Basel) 2021; 13:5528. [PMID: 34771690 PMCID: PMC8582685 DOI: 10.3390/cancers13215528] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 12/17/2022] Open
Abstract
Neuroblastoma (NB) is a tumor of the peripheral sympathetic nervous system that substantially contributes to childhood cancer mortality. NB originates from neural crest cells (NCCs) undergoing a defective sympathetic neuronal differentiation and although the starting events leading to the development of NB remain to be fully elucidated, the master role of genetic alterations in key oncogenes has been ascertained: (1) amplification and/or over-expression of MYCN, which is strongly associated with tumor progression and invasion; (2) activating mutations, amplification and/or over-expression of ALK, which is involved in tumor initiation, angiogenesis and invasion; (3) amplification and/or over-expression of LIN28B, promoting proliferation and suppression of neuroblast differentiation; (4) mutations and/or over-expression of PHOX2B, which is involved in the regulation of NB differentiation, stemness maintenance, migration and metastasis. Moreover, altered microRNA (miRNA) expression takes part in generating pathogenetic networks, in which the regulatory loops among transcription factors, miRNAs and target genes lead to complex and aberrant oncogene expression that underlies the development of a tumor. In this review, we have focused on the circuitry linking the oncogenic transcription factors MYCN and PHOX2B with their transcriptional targets ALK and LIN28B and the tumor suppressor microRNAs let-7, miR-34 and miR-204, which should act as down-regulators of their expression. We have also looked at the physiologic role of these genetic and epigenetic determinants in NC development, as well as in terminal differentiation, with their pathogenic dysregulation leading to NB oncogenesis.
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Affiliation(s)
- Patrizia Perri
- Laboratory of Experimental Therapies in Oncology, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy; (M.P.); (M.V.C.)
| | - Mirco Ponzoni
- Laboratory of Experimental Therapies in Oncology, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy; (M.P.); (M.V.C.)
| | - Maria Valeria Corrias
- Laboratory of Experimental Therapies in Oncology, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy; (M.P.); (M.V.C.)
| | - Isabella Ceccherini
- Laboratory of Genetics and Genomics of Rare Diseases, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy;
| | - Simona Candiani
- Department of Earth, Environment and Life Sciences, University of Genoa, 16132 Genoa, Italy;
| | - Tiziana Bachetti
- Laboratory of Genetics and Genomics of Rare Diseases, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy;
- Department of Earth, Environment and Life Sciences, University of Genoa, 16132 Genoa, Italy;
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9
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Cavone L, McCann T, Drake LK, Aguzzi EA, Oprişoreanu AM, Pedersen E, Sandi S, Selvarajah J, Tsarouchas TM, Wehner D, Keatinge M, Mysiak KS, Henderson BEP, Dobie R, Henderson NC, Becker T, Becker CG. A unique macrophage subpopulation signals directly to progenitor cells to promote regenerative neurogenesis in the zebrafish spinal cord. Dev Cell 2021; 56:1617-1630.e6. [PMID: 34033756 DOI: 10.1016/j.devcel.2021.04.031] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 03/15/2021] [Accepted: 04/28/2021] [Indexed: 12/14/2022]
Abstract
Central nervous system injury re-initiates neurogenesis in anamniotes (amphibians and fishes), but not in mammals. Activation of the innate immune system promotes regenerative neurogenesis, but it is fundamentally unknown whether this is indirect through the activation of known developmental signaling pathways or whether immune cells directly signal to progenitor cells using mechanisms that are unique to regeneration. Using single-cell RNA-seq of progenitor cells and macrophages, as well as cell-type-specific manipulations, we provide evidence for a direct signaling axis from specific lesion-activated macrophages to spinal progenitor cells to promote regenerative neurogenesis in zebrafish. Mechanistically, TNFa from pro-regenerative macrophages induces Tnfrsf1a-mediated AP-1 activity in progenitors to increase regeneration-promoting expression of hdac1 and neurogenesis. This establishes the principle that macrophages directly communicate to spinal progenitor cells via non-developmental signals after injury, providing potential targets for future interventions in the regeneration-deficient spinal cord of mammals.
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Affiliation(s)
- Leonardo Cavone
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Tess McCann
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Louisa K Drake
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Erika A Aguzzi
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Ana-Maria Oprişoreanu
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Elisa Pedersen
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Soe Sandi
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Jathurshan Selvarajah
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Themistoklis M Tsarouchas
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Daniel Wehner
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK; Max Planck Institute for the Science of Light, Staudtstraße 2, Erlangen 91058, Germany; Max-Planck-Zentrum für Physik und Medizin, Staudtstraße 2, Erlangen 91058, Germany
| | - Marcus Keatinge
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Karolina S Mysiak
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Beth E P Henderson
- Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Ross Dobie
- Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Neil C Henderson
- Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK; MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Thomas Becker
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK.
| | - Catherina G Becker
- Centre for Discovery Brain Sciences, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK; Euan MacDonald Centre for Motor Neurone Disease Research University of Edinburgh, Edinburgh, UK.
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10
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Li H, Charruyer A, Weisenberger T, Khalifa A, Nguyen R, Ghadially R. IL-1α, IL-6, and GM-CSF Are Downstream Mediators of IL-17A that Promote Asymmetric Stem Cell Self-Renewal in Human Keratinocytes. J Invest Dermatol 2021; 141:458-462.e3. [PMID: 32621824 DOI: 10.1016/j.jid.2020.05.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 11/15/2022]
Affiliation(s)
- Hang Li
- Department of Dermatology, University of California, San Francisco, San Francisco, California, USA; Department of Dermatology, VA Medical Center, San Francisco, California, USA
| | - Alex Charruyer
- Department of Dermatology, University of California, San Francisco, San Francisco, California, USA; Department of Dermatology, VA Medical Center, San Francisco, California, USA
| | - Tracy Weisenberger
- Department of Dermatology, University of California, San Francisco, San Francisco, California, USA; Department of Dermatology, VA Medical Center, San Francisco, California, USA
| | - Ayman Khalifa
- Department of Dermatology, University of California, San Francisco, San Francisco, California, USA; Department of Dermatology, VA Medical Center, San Francisco, California, USA; Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Robert Nguyen
- Department of Dermatology, University of California, San Francisco, San Francisco, California, USA; Keck School of Medicine, Los Angeles, California, USA
| | - Ruby Ghadially
- Department of Dermatology, University of California, San Francisco, San Francisco, California, USA; Department of Dermatology, VA Medical Center, San Francisco, California, USA.
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11
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Dodson M, Anandhan A, Zhang DD, Madhavan L. An NRF2 Perspective on Stem Cells and Ageing. FRONTIERS IN AGING 2021; 2:690686. [PMID: 36213179 PMCID: PMC9536878 DOI: 10.3389/fragi.2021.690686] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 06/03/2021] [Indexed: 04/24/2023]
Abstract
Redox and metabolic mechanisms lie at the heart of stem cell survival and regenerative activity. NRF2 is a major transcriptional controller of cellular redox and metabolic homeostasis, which has also been implicated in ageing and lifespan regulation. However, NRF2's role in stem cells and their functioning with age is only just emerging. Here, focusing mainly on neural stem cells, which are core to adult brain plasticity and function, we review recent findings that identify NRF2 as a fundamental player in stem cell biology and ageing. We also discuss NRF2-based molecular programs that may govern stem cell state and function with age, and implications of this for age-related pathologies.
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Affiliation(s)
- Matthew Dodson
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, United States
| | - Annadurai Anandhan
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, United States
- Department of Neurology, University of Arizona, Tucson, AZ, United States
| | - Donna D. Zhang
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, United States
| | - Lalitha Madhavan
- Department of Neurology, University of Arizona, Tucson, AZ, United States
- Evelyn F. McKnight Brain Institute and Bio5 Institute, University of Arizona, Tucson, AZ, United States
- *Correspondence: Lalitha Madhavan,
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12
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Lala-Tabbert N, AlSudais H, Marchildon F, Fu D, Wiper-Bergeron N. CCAAT/enhancer-binding protein beta promotes muscle stem cell quiescence through regulation of quiescence-associated genes. Stem Cells 2020; 39:345-357. [PMID: 33326659 DOI: 10.1002/stem.3319] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 11/24/2020] [Indexed: 12/15/2022]
Abstract
Regeneration of skeletal muscle depends on resident muscle stem cells called satellite cells that in healthy, uninjured muscle remain quiescent (noncycling). After activation and expansion of satellite cells postinjury, satellite cell numbers return to uninjured levels and return to mitotic quiescence. Here, we show that the transcription factor CCAAT/enhancer-binding protein beta (C/EBPβ) is required to maintain quiescence of satellite cells in uninjured muscle. We show that C/EBPβ is expressed in quiescent satellite cells in vivo and upregulated in noncycling myoblasts in vitro. Loss of C/EBPβ in satellite cells promotes their premature exit from quiescence resulting in spontaneous activation and differentiation of the stem cell pool. Forced expression of C/EBPβ in myoblasts inhibits proliferation by upregulation of 28 quiescence-associated genes. Furthermore, we find that caveolin-1 is a direct transcriptional target of C/EBPβ and is required for cell cycle exit in muscle satellite cells expressing C/EBPβ. The induction of mitotic quiescence is considered necessary for the long-term maintenance of adult stem cell populations with dysregulation driving increased differentiation of progenitors and depletion of the stem cell pool. Our findings place C/EBPβ as an important transcriptional regulator of muscle satellite cell quiescence.
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Affiliation(s)
- Neena Lala-Tabbert
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Apoptosis Research Centre, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Hamood AlSudais
- Graduate Program in Cellular and Molecular Medicine, Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - François Marchildon
- Graduate Program in Cellular and Molecular Medicine, Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Laboratory of Molecular Metabolism, The Rockefeller University, New York, New York, USA
| | - Dechen Fu
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Cleveland Clinic, Lerner Research Institute, Cleveland, Ohio, USA
| | - Nadine Wiper-Bergeron
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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13
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Wang X, Li S, Ma Y, Xu Y, Ogbuehi AC, Hu X, Acharya A, Haak R, Ziebolz D, Schmalz G, Li H, Gaus S, Lethaus B, Savkovic V, Su Z. Identification of miRNAs as the Crosstalk in the Interaction between Neural Stem/Progenitor Cells and Endothelial Cells. DISEASE MARKERS 2020; 2020:6630659. [PMID: 33381243 PMCID: PMC7758130 DOI: 10.1155/2020/6630659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 12/12/2022]
Abstract
AIM This study is aimed at identifying genetic and epigenetic crosstalk molecules and their target drugs involved in the interaction between neural stem/progenitor cells (NSPCs) and endothelial cells (ECs). MATERIALS AND METHODS Datasets pertaining to reciprocal mRNA and noncoding RNA changes induced by the interaction between NSPCs and ECs were obtained from the GEO database. Differential expression analysis (DEA) was applied to identify NSPC-induced EC alterations by comparing the expression profiles between monoculture of ECs and ECs grown in EC/NSPC cocultures. DEA was also utilized to identify EC-induced NSPC alterations by comparing the expression profiles between monoculture of NSPCs and NSPCs grown in EC/NSPC cocultures. The DEGs and DEmiRNAs shared by NSPC-induced EC alterations and EC-induced NSPC alterations were then identified. Furthermore, miRNA crosstalk analysis and functional enrichment analysis were performed, and the relationship between DEmiRNAs and small molecular drug targets/environment chemical compounds was investigated. RESULTS One dataset (GSE29759) was included and analyzed in this study. Six genes (i.e., MMP14, TIMP3, LOXL1, CCK, SMAD6, and HSPA2), three miRNAs (i.e., miR-210, miR-230a, and miR-23b), and three pathways (i.e., Akt, ERK1/2, and BMPs) were identified as crosstalk molecules. Six small molecular drugs (i.e., deptropine, fluphenazine, lycorine, quinostatin, resveratrol, and thiamazole) and seven environmental chemical compounds (i.e., folic acid, dexamethasone, choline, doxorubicin, thalidomide, bisphenol A, and titanium dioxide) were identified to be potential target drugs of the identified DEmiRNAs. CONCLUSION To conclude, three miRNAs (i.e., miR-210, miR-230a, and miR-23b) were identified to be crosstalks linking the interaction between ECs and NSPCs by implicating in both angiogenesis and neurogenesis. These crosstalk molecules might provide a basis for devising novel strategies for fabricating neurovascular models in stem cell tissue engineering.
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Affiliation(s)
- Xin Wang
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Simin Li
- Department of Cariology, Endodontology and Periodontology, University Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Yihong Ma
- Department of Neurology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yuzhen Xu
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No. 301 Middle Yanchang Road, Shanghai, China
| | | | - Xianda Hu
- Laboratory of Molecular Cell Biology, Beijing Tibetan Hospital, China Tibetology Research Center, 218 Anwaixiaoguanbeili Street, Chaoyang, Beijing 100029, China
| | - Aneesha Acharya
- Faculty of Dentistry, University of Hong Kong, Hong Kong, China
| | - Rainer Haak
- Department of Cariology, Endodontology and Periodontology, University Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Dirk Ziebolz
- Department of Cariology, Endodontology and Periodontology, University Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Gerhard Schmalz
- Department of Cariology, Endodontology and Periodontology, University Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Hanluo Li
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Sebastian Gaus
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Bernd Lethaus
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Vuk Savkovic
- Department of Cranio Maxillofacial Surgery, University Clinic Leipzig, Liebigstr. 12, 04103 Leipzig, Germany
| | - Zhiqiang Su
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
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14
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Bodnar B, DeGruttola A, Zhu Y, Lin Y, Zhang Y, Mo X, Hu W. Emerging role of NIK/IKK2-binding protein (NIBP)/trafficking protein particle complex 9 (TRAPPC9) in nervous system diseases. Transl Res 2020; 224:55-70. [PMID: 32434006 PMCID: PMC7442628 DOI: 10.1016/j.trsl.2020.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/02/2020] [Accepted: 05/05/2020] [Indexed: 02/05/2023]
Abstract
NFκB signaling and protein trafficking network play important roles in various biological and pathological processes. NIK-and-IKK2-binding protein (NIBP), also known as trafficking protein particle complex 9 (TRAPPC9), is a prototype member of a novel protein family, and has been shown to regulate both NFκB signaling pathway and protein transport/trafficking. NIBP is extensively expressed in the nervous system and plays an important role in regulating neurogenesis and neuronal differentiation. NIBP/TRAPPC9 mutations have been linked to an autosomal recessive intellectual disability syndrome, called NIBP Syndrome, which is characterized by nonsyndromic autosomal recessive intellectual disability along with other symptoms such as obesity, microcephaly, and facial dysmorphia. As more cases of NIBP Syndrome are identified, new light is being shed on the role of NIBP/TRAPPC9 in the central nervous system developments and diseases. NIBP is also involved in the enteric nervous system. This review will highlight the importance of NIBP/TRAPPC9 in central and enteric nervous system diseases, and the established possible mechanisms for developing a potential therapeutic.
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Affiliation(s)
- Brittany Bodnar
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania; MD/PhD and Biomedical Sciences Graduate Program, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania
| | - Arianna DeGruttola
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania; MD/PhD and Biomedical Sciences Graduate Program, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania
| | - Yuanjun Zhu
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania; Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania; Department of Molecular and Cellular Pharmacology, Peking University School of Pharmaceutical Sciences, Beijing, China
| | - Yuan Lin
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania; Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania
| | - Yonggang Zhang
- Center for Stem Cell Research and Application, Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Chengdu, China
| | - Xianming Mo
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Wenhui Hu
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania; MD/PhD and Biomedical Sciences Graduate Program, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania; Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania.
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15
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Engelmann C, Riemann M, Carlstedt S, Grimlowski R, Andreas N, Koliesnik I, Meier E, Austerfield P, Haenold R. Identification of undescribed Relb expression domains in the murine brain by new Relb:cre-katushka reporter mice. Dev Dyn 2020; 249:983-997. [PMID: 32145043 DOI: 10.1002/dvdy.170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/07/2020] [Accepted: 02/27/2020] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Noncanonical NF-κB signaling through activation of the transcription factor RelB acts as key regulator of cell lineage determination and differentiation in various tissues including the immune system. To elucidate temporospatial aspects of Relb expression, we generated a BAC transgenic knock-in mouse expressing the fluorescent protein Katushka and the enzyme Cre recombinase under control of the murine Relb promoter (RelbCre-Kat mice). RESULTS Co-expression of Katushka and Relb in fibroblast cultures and tissues of transgenic mice revealed highly specific reporter functions of the transgene. Crossing RelbCre-Kat mice with ROSA26R reporter mice that allow for Cre-mediated consecutive β-galactosidase or YFP synthesis identified various Relb expression domains in perinatal and mature mice. Besides thymus and spleen, highly specific expression patterns were found in different neuronal domains, as well as in other nonimmune organs including skin, skeletal structures and kidney. De novo Relb expression in the mature brain was confirmed in conditional knockout mice with neuro-ectodermal Relb deletion. CONCLUSION Our results demonstrate the usability of RelbCre-Kat reporter mice for the detection of de novo and temporarily restricted Relb expression including cell and lineage tracing of Relb expressing cells. Relb expression during mouse embryogenesis and at adulthood suggests, beyond immunity, important functions of this transcription factor in neurodevelopment and CNS function.
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Affiliation(s)
| | - Marc Riemann
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Swen Carlstedt
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.,Jena University Hospital, Institute of Biochemistry II, Center for Sepsis Control and Care, Jena, Germany
| | - Randy Grimlowski
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.,Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Nico Andreas
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.,Jena University Hospital, Institute of Immunology, Jena, Germany
| | - Ievgen Koliesnik
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.,School of Medicine, Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, CA, USA
| | - Elke Meier
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | | | - Ronny Haenold
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
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16
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Mahato B, Kaya KD, Fan Y, Sumien N, Shetty RA, Zhang W, Davis D, Mock T, Batabyal S, Ni A, Mohanty S, Han Z, Farjo R, Forster MJ, Swaroop A, Chavala SH. Pharmacologic fibroblast reprogramming into photoreceptors restores vision. Nature 2020; 581:83-88. [PMID: 32376950 PMCID: PMC7469946 DOI: 10.1038/s41586-020-2201-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 02/10/2020] [Indexed: 12/14/2022]
Abstract
Photoreceptor loss is the final common endpoint in most retinopathies that lead to irreversible blindness, and there are no effective treatments to restore vision1,2. Chemical reprogramming of fibroblasts offers an opportunity to reverse vision loss; however, the generation of sensory neuronal subtypes such as photoreceptors remains a challenge. Here we report that the administration of a set of five small molecules can chemically induce the transformation of fibroblasts into rod photoreceptor-like cells. The transplantation of these chemically induced photoreceptor-like cells (CiPCs) into the subretinal space of rod degeneration mice (homozygous for rd1, also known as Pde6b) leads to partial restoration of the pupil reflex and visual function. We show that mitonuclear communication is a key determining factor for the reprogramming of fibroblasts into CiPCs. Specifically, treatment with these five compounds leads to the translocation of AXIN2 to the mitochondria, which results in the production of reactive oxygen species, the activation of NF-κB and the upregulation of Ascl1. We anticipate that CiPCs could have therapeutic potential for restoring vision.
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Affiliation(s)
- Biraj Mahato
- Department of Pharmacology and Neuroscience, Laboratory for Retinal Rehabilitation, North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Koray Dogan Kaya
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Yan Fan
- Department of Pharmacology and Neuroscience, Laboratory for Retinal Rehabilitation, North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Nathalie Sumien
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Ritu A Shetty
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Wei Zhang
- Department of Pharmacology and Neuroscience, Laboratory for Retinal Rehabilitation, North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Delaney Davis
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Thomas Mock
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX, USA
| | | | - Aiguo Ni
- Department of Pharmacology and Neuroscience, Laboratory for Retinal Rehabilitation, North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX, USA
| | | | - Zongchao Han
- Department of Ophthalmology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | - Michael J Forster
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Anand Swaroop
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sai H Chavala
- Department of Pharmacology and Neuroscience, Laboratory for Retinal Rehabilitation, North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX, USA.
- CIRC Therapeutics, Inc., Dallas, TX, USA.
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17
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Ruiz-Perera LM, Greiner JFW, Kaltschmidt C, Kaltschmidt B. A Matter of Choice: Inhibition of c-Rel Shifts Neuronal to Oligodendroglial Fate in Human Stem Cells. Cells 2020; 9:cells9041037. [PMID: 32331232 PMCID: PMC7226153 DOI: 10.3390/cells9041037] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/18/2020] [Accepted: 04/20/2020] [Indexed: 12/18/2022] Open
Abstract
The molecular mechanisms underlying fate decisions of human neural stem cells (hNSCs) between neurogenesis and gliogenesis are critical during neuronal development and neurodegenerative diseases. Despite its crucial role in the murine nervous system, the potential role of the transcription factor NF-κB in the neuronal development of hNSCs is poorly understood. Here, we analyzed NF-κB subunit distribution during glutamatergic differentiation of hNSCs originating from neural crest-derived stem cells. We observed several peaks of specific NF-κB subunits. The most prominent nuclear peak was shown by c-REL subunit during a period of 2–5 days after differentiation onset. Furthermore, c-REL inhibition with pentoxifylline (PTXF) resulted in a complete shift towards oligodendroglial fate, as demonstrated by the presence of OLIG2+/O4+-oligodendrocytes, which showed PDGFRα, NG2 and MBP at the transcript level. In addition c-REL impairment further produced a significant decrease in neuronal survival. Transplantation of PTXF-treated predifferentiated hNSCs into an ex vivo oxidative-stress-mediated demyelination model of mouse organotypic cerebellar slices further led to integration in the white matter and differentiation into MBP+ oligodendrocytes, validating their functionality and therapeutic potential. In summary, we present a human cellular model of neuronal differentiation exhibiting a novel essential function of NF-κB-c-REL in fate choice between neurogenesis and oligodendrogenesis which will potentially be relevant for multiple sclerosis and schizophrenia.
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Affiliation(s)
| | | | - Christian Kaltschmidt
- Department of Cell Biology, University of Bielefeld, 33615 Bielefeld, Germany; (J.F.W.G.); (C.K.)
| | - Barbara Kaltschmidt
- Molecular Neurobiology, University of Bielefeld, 33615 Bielefeld, Germany;
- Department of Cell Biology, University of Bielefeld, 33615 Bielefeld, Germany; (J.F.W.G.); (C.K.)
- Correspondence:
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18
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Wilton KM, Gunderson LB, Hasadsri L, Wood CP, Schimmenti LA. Profound intellectual disability caused by homozygous TRAPPC9 pathogenic variant in a man from Malta. Mol Genet Genomic Med 2020; 8:e1211. [PMID: 32162493 PMCID: PMC7216808 DOI: 10.1002/mgg3.1211] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 02/24/2020] [Indexed: 01/02/2023] Open
Abstract
Background Intellectual disability is a complex multi‐faceted condition with diverse underlying etiologies. One rare form of intellectual disability is secondary to the loss of TRAPPC9, an activator of NF‐κB and a mediator of intracellular protein processing and trafficking. TRAPPC9 deficiency has been described in 48 patients with more than 15 pathologic variants. Method Clinical evaluation, magnetic resonance imaging, and whole‐exome sequencing were used to characterize the underlying cause of absent speech, restricted/repetitive behaviors, and worsening behavioral outbursts in 27‐year‐old man from Malta. Results Magnetic Resonance Imaging showed morphologic abnormalities, including global cerebral and cerebellar hypoplasia. Genetic analysis through Whole Exome Sequencing identified a homozygous deletion (c.568_574del) in TRAPPC9 resulting in a frameshift, premature stop codon, and ultimately a truncated protein (p.Trp190Argfs*95). In this case, the pathogenic variant was homozygous, identified in both of the parents without known consanguinity. Conclusion Given the phenotype and genotype consistent with a deficiency in TRAPPC9, it is likely that this patient represents a novel case of this rare genetic syndrome. Specifically, this case, in the context of 48 total reported patients, raises questions as to the geographic origin of the pathologic variant and optimal detection and therapeutic intervention for this condition.
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Affiliation(s)
- Katelynn M Wilton
- Mayo Clinic Alix School of Medicine Medical Scientist Training Program, Mayo Clinic, Rochester, MN, USA
| | | | - Linda Hasadsri
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - Lisa A Schimmenti
- Department of Clinical Genomics, Mayo Clinic, Rochester, MN, USA.,Department of Otorhinolaryngology, Mayo Clinic, Rochester, MN, USA
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19
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Williams LM, Inge MM, Mansfield KM, Rasmussen A, Afghani J, Agrba M, Albert C, Andersson C, Babaei M, Babaei M, Bagdasaryants A, Bonilla A, Browne A, Carpenter S, Chen T, Christie B, Cyr A, Dam K, Dulock N, Erdene G, Esau L, Esonwune S, Hanchate A, Huang X, Jennings T, Kasabwala A, Kehoe L, Kobayashi R, Lee M, LeVan A, Liu Y, Murphy E, Nambiar A, Olive M, Patel D, Pavesi F, Petty CA, Samofalova Y, Sanchez S, Stejskal C, Tang Y, Yapo A, Cleary JP, Yunes SA, Siggers T, Gilmore TD. Transcription factor NF-κB in a basal metazoan, the sponge, has conserved and unique sequences, activities, and regulation. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 104:103559. [PMID: 31751628 DOI: 10.1016/j.dci.2019.103559] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/15/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
Herein, we characterize transcription factor NF-κB from the demosponge Amphimedon queenslandica (Aq). Aq-NF-κB is most similar to NF-κB p100/p105 among vertebrate proteins, with an N-terminal DNA-binding domain, a C-terminal Ankyrin (ANK) repeat domain, and a DNA binding-site profile akin to human NF-κB proteins. Like mammalian NF-κB p100, C-terminal truncation allows nuclear translocation of Aq-NF-κB and increases its transcriptional activation activity. Expression of IκB kinases (IKKs) induces proteasome-dependent C-terminal processing of Aq-NF-κB in human cells, and processing requires C-terminal serines in Aq-NF-κB. Unlike NF-κB p100, C-terminal sequences of Aq-NF-κB do not inhibit its DNA-binding activity. Tissue of a black encrusting demosponge contains NF-κB site DNA-binding activity, as well as nuclear and processed NF-κB. Treatment of sponge tissue with LPS increases both DNA-binding activity and processing of NF-κB. A. queenslandica transcriptomes contain homologs to upstream NF-κB pathway components. This is first functional characterization of NF-κB in sponge, the most basal multicellular animal.
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Affiliation(s)
- Leah M Williams
- Department of Biology, Boston University, Boston, MA, 02215, USA
| | - Melissa M Inge
- Department of Biology, Boston University, Boston, MA, 02215, USA; Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | | | - Anna Rasmussen
- Department of Biology, Boston University, Boston, MA, 02215, USA
| | - Jamie Afghani
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Mikhail Agrba
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Colleen Albert
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Cecilia Andersson
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Milad Babaei
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Mohammad Babaei
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Abigail Bagdasaryants
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Arianna Bonilla
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Amanda Browne
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Sheldon Carpenter
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Tiffany Chen
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Blake Christie
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Andrew Cyr
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Katie Dam
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Nicholas Dulock
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Galbadrakh Erdene
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Lindsie Esau
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Stephanie Esonwune
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Anvita Hanchate
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Xinli Huang
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Timothy Jennings
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Aarti Kasabwala
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Leanne Kehoe
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Ryan Kobayashi
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Migi Lee
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Andre LeVan
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Yuekun Liu
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Emily Murphy
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Avanti Nambiar
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Meagan Olive
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Devansh Patel
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Flaminio Pavesi
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Christopher A Petty
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Yelena Samofalova
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Selma Sanchez
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Camilla Stejskal
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Yinian Tang
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Alia Yapo
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - John P Cleary
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Sarah A Yunes
- Molecular Biology Laboratory (BB522), Program in Biochemistry & Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Trevor Siggers
- Department of Biology, Boston University, Boston, MA, 02215, USA
| | - Thomas D Gilmore
- Department of Biology, Boston University, Boston, MA, 02215, USA.
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20
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Arginase Inhibition Supports Survival and Differentiation of Neuronal Precursors in Adult Alzheimer's Disease Mice. Int J Mol Sci 2020; 21:ijms21031133. [PMID: 32046281 PMCID: PMC7037054 DOI: 10.3390/ijms21031133] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 01/23/2023] Open
Abstract
Adult neurogenesis is a complex physiological process, which plays a central role in maintaining cognitive functions, and consists of progenitor cell proliferation, newborn cell migration, and cell maturation. Adult neurogenesis is susceptible to alterations under various physiological and pathological conditions. A substantial decay of neurogenesis has been documented in Alzheimer’s disease (AD) patients and animal AD models; however, several treatment strategies can halt any further decline and even induce neurogenesis. Our previous results indicated a potential effect of arginase inhibition, with norvaline, on various aspects of neurogenesis in triple-transgenic mice. To better evaluate this effect, we chronically administered an arginase inhibitor, norvaline, to triple-transgenic and wild-type mice, and applied an advanced immunohistochemistry approach with several biomarkers and bright-field microscopy. Remarkably, we evidenced a significant reduction in the density of neuronal progenitors, which demonstrate a different phenotype in the hippocampi of triple-transgenic mice as compared to wild-type animals. However, norvaline showed no significant effect upon the progenitor cell number and constitution. We demonstrated that norvaline treatment leads to an escalation of the polysialylated neuronal cell adhesion molecule immunopositivity, which suggests an improvement in the newborn neuron survival rate. Additionally, we identified a significant increase in the hippocampal microtubule-associated protein 2 stain intensity. We also explore the molecular mechanisms underlying the effects of norvaline on adult mice neurogenesis and provide insights into their machinery.
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21
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Corey S, Bonsack B, Heyck M, Shear A, Sadanandan N, Zhang H, Borlongan CV. Harnessing the anti-inflammatory properties of stem cells for transplant therapy in hemorrhagic stroke. BRAIN HEMORRHAGES 2020; 1:24-33. [PMID: 34056567 PMCID: PMC8158660 DOI: 10.1016/j.hest.2019.12.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Hemorrhagic stroke is a global health crisis plagued by neuroinflammation in the acute and chronic phases. Neuroinflammation approximates secondary cell death, which in turn robustly contributes to stroke pathology. Both the physiological and behavioral symptoms of stroke correlate with various inflammatory responses in animal and human studies. That slowing the secondary cell death mediated by this inflammation may attenuate stroke pathology presents a novel treatment strategy. To this end, experimental therapies employing stem cell transplants support their potential for neuroprotection and neuroregeneration after hemorrhagic stroke. In this review, we evaluate experiments using different types of stem cell transplants as treatments for stroke-induced neuroinflammation. We also update this emerging area by examining recent preclinical and clinical trials that have deployed these therapies. While further investigations are warranted to solidify their therapeutic profile, the reviewed studies largely posit stem cells as safe and potent biologics for stroke, specifically owing to their mode of action for sequestering neuroinflammation and promoting neuroregenerative processes.
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Affiliation(s)
- Sydney Corey
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Brooke Bonsack
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Matt Heyck
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Alex Shear
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Nadia Sadanandan
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Henry Zhang
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, University of South Florida, College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
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22
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Bejoy J, Yuan X, Song L, Hua T, Jeske R, Sart S, Sang QXA, Li Y. Genomics Analysis of Metabolic Pathways of Human Stem Cell-Derived Microglia-Like Cells and the Integrated Cortical Spheroids. Stem Cells Int 2019; 2019:2382534. [PMID: 31827525 PMCID: PMC6885849 DOI: 10.1155/2019/2382534] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/18/2019] [Accepted: 10/09/2019] [Indexed: 12/27/2022] Open
Abstract
Brain spheroids or organoids derived from human pluripotent stem cells (hiPSCs) are still not capable of completely recapitulating in vivo human brain tissue, and one of the limitations is lack of microglia. To add built-in immune function, coculture of the dorsal forebrain spheroids with isogenic microglia-like cells (D-MG) was performed in our study. The three-dimensional D-MG spheroids were analyzed for their transcriptome and compared with isogenic microglia-like cells (MG). Cortical spheroids containing microglia-like cells displayed different metabolic programming, which may affect the associated phenotype. The expression of genes related to glycolysis and hypoxia signaling was increased in cocultured D-MG spheroids, indicating the metabolic shift to aerobic glycolysis, which is in favor of M1 polarization of microglia-like cells. In addition, the metabolic pathways and the signaling pathways involved in cell proliferation, cell death, PIK3/AKT/mTOR signaling, eukaryotic initiation factor 2 pathway, and Wnt and Notch pathways were analyzed. The results demonstrate the activation of mTOR and p53 signaling, increased expression of Notch ligands, and the repression of NF-κB and canonical Wnt pathways, as well as the lower expression of cell cycle genes in the cocultured D-MG spheroids. This analysis indicates that physiological 3-D microenvironment may reshape the immunity of in vitro cortical spheroids and better recapitulate in vivo brain tissue function for disease modeling and drug screening.
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Affiliation(s)
- Julie Bejoy
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Xuegang Yuan
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Liqing Song
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Thien Hua
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida, USA
| | - Richard Jeske
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Sébastien Sart
- Hydrodynamics Laboratory (LadHyX)-Department of Mechanics, Ecole Polytechnique, CNRS-UMR7646, 91128 Palaiseau, France
| | - Qing-Xiang Amy Sang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida, USA
- Institute of Molecular Biophysics, Florida State University, Tallahassee, Florida, USA
| | - Yan Li
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
- Institute of Molecular Biophysics, Florida State University, Tallahassee, Florida, USA
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23
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Putatunda R, Ho WZ, Hu W. HIV-1 and Compromised Adult Neurogenesis: Emerging Evidence for a New Paradigm of HAND Persistence. AIDS Rev 2019; 21:11-22. [PMID: 30899112 DOI: 10.24875/aidsrev.19000003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The face of the HIV-1/AIDS pandemic has changed significantly thanks to the development of antiretroviral therapy (ART) regimens. Unfortunately, several HIV-associated comorbidities continuously occur in the clinical population, most notably HIV-associated neurocognitive disorders (HAND). While many molecular and cellular mechanisms have been characterized by describing HAND pathology (specifically neuroinflammatory insults and oxidative stress) in the ART era, compromised adult neurogenesis is emerging as a potential new mechanism. Neurogenesis is a dynamic process that generates new neurons and glial cells from neural stem cells (NSCs) and neural progenitor cells (NPCs) in specific areas of the brain. There are increasing observations that HIV-1 can productively and non-productively infect NSCs and NPCs. HIV-1 proteins and/or secondary immune/inflammatory responses impair the initial differentiation process of NSCs to NPCs, restrict neuronal lineage differentiation, and aberrantly promote astrocytic lineage differentiation. Recent studies with HIV-1 transgenic animal models demonstrate varying degrees of adult neurogenic deficits, which correlate with milder to moderate forms of neurocognitive impairments. The neurogenic dysfunction underlying HAND highlights the importance of developing potential therapeutics to restore adult neurogenic homeostasis in HIV-1 patients.
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Affiliation(s)
- Raj Putatunda
- Department of Pathology and Laboratory Medicine, Philadelphia, Pennsylvania, USA
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
| | - Wen-Zhe Ho
- Department of Pathology and Laboratory Medicine, Philadelphia, Pennsylvania, USA
| | - Wenhui Hu
- Department of Pathology and Laboratory Medicine, Philadelphia, Pennsylvania, USA
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
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24
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Dresselhaus EC, Meffert MK. Cellular Specificity of NF-κB Function in the Nervous System. Front Immunol 2019; 10:1043. [PMID: 31143184 PMCID: PMC6520659 DOI: 10.3389/fimmu.2019.01043] [Citation(s) in RCA: 190] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 04/24/2019] [Indexed: 12/17/2022] Open
Abstract
Nuclear Factor Kappa B (NF-κB) is a ubiquitously expressed transcription factor with key functions in a wide array of biological systems. While the role of NF-κB in processes, such as host immunity and oncogenesis has been more clearly defined, an understanding of the basic functions of NF-κB in the nervous system has lagged behind. The vast cell-type heterogeneity within the central nervous system (CNS) and the interplay between cell-type specific roles of NF-κB contributes to the complexity of understanding NF-κB functions in the brain. In this review, we will focus on the emerging understanding of cell-autonomous regulation of NF-κB signaling as well as the non-cell-autonomous functional impacts of NF-κB activation in the mammalian nervous system. We will focus on recent work which is unlocking the pleiotropic roles of NF-κB in neurons and glial cells (including astrocytes and microglia). Normal physiology as well as disorders of the CNS in which NF-κB signaling has been implicated will be discussed with reference to the lens of cell-type specific responses.
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Affiliation(s)
- Erica C Dresselhaus
- Department of Biological Chemistry and Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Mollie K Meffert
- Department of Biological Chemistry and Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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25
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Hill JD, Zuluaga-Ramirez V, Gajghate S, Winfield M, Sriram U, Persidsky Y, Persidsky Y. Activation of GPR55 induces neuroprotection of hippocampal neurogenesis and immune responses of neural stem cells following chronic, systemic inflammation. Brain Behav Immun 2019; 76:165-181. [PMID: 30465881 PMCID: PMC6398994 DOI: 10.1016/j.bbi.2018.11.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/13/2018] [Accepted: 11/18/2018] [Indexed: 12/12/2022] Open
Abstract
New neurons are continuously produced by neural stem cells (NSCs) within the adult hippocampus. Numerous diseases, including major depressive disorder and HIV-1 associated neurocognitive disorder, are associated with decreased rates of adult neurogenesis. A hallmark of these conditions is a chronic release of neuroinflammatory mediators by activated resident glia. Recent studies have shown a neuroprotective role on NSCs of cannabinoid receptor activation. Yet, little is known about the effects of GPR55, a candidate cannabinoid receptor, activation on reductions of neurogenesis in response to inflammatory insult. In the present study, we examined NSCs exposed to IL-1β in vitro to assess inflammation-caused effects on NSC differentiation and the ability of GPR55 agonists to attenuate NSC injury. NSC differentiation and neurogenesis was determined via immunofluorescence and flow cytometric analysis of NSC markers (Nestin, Sox2, DCX, S100β, βIII Tubulin, GFAP). GPR55 agonist treatment protected against IL-1β induced reductions in neurogenesis rates. Moreover, inflammatory cytokine receptor mRNA expression was down regulated by GPR55 activation in a neuroprotective manner. To determine inflammatory responses in vivo, we treated C57BL/6 and GPR55-/- mice with LPS (0.2 mg/kg/day) continuously for 14 days via osmotic mini-pump. Reductions in NSC survival (as determined by BrdU incorporation), immature neurons, and neuroblast formation due to LPS were attenuated by concurrent direct intrahippocampal administration of the GPR55 agonist, O-1602 (4 µg/kg/day). Molecular analysis of the hippocampal region showed a suppressed ability to regulate immune responses by GPR55-/- animals manifesting in a prolonged inflammatory response (IL-1β, IL-6, TNFα) after chronic, systemic inflammation as compared to C57BL/6 animals. Taken together, these results suggest a neuroprotective role of GPR55 activation on NSCs in vitro and in vivo and that GPR55 provides a novel therapeutic target against negative regulation of hippocampal neurogenesis by inflammatory insult.
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Affiliation(s)
- Jeremy D. Hill
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA,Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Viviana Zuluaga-Ramirez
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Sachin Gajghate
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Malika Winfield
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Uma Sriram
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Yuri Persidsky
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA; Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA.
| | - Yuri Persidsky
- Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA; Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA.
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26
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Johnstone M, Vasistha NA, Barbu MC, Dando O, Burr K, Christopher E, Glen S, Robert C, Fetit R, Macleod KG, Livesey MR, Clair DS, Blackwood DHR, Millar K, Carragher NO, Hardingham GE, Wyllie DJA, Johnstone EC, Whalley HC, McIntosh AM, Lawrie SM, Chandran S. Reversal of proliferation deficits caused by chromosome 16p13.11 microduplication through targeting NFκB signaling: an integrated study of patient-derived neuronal precursor cells, cerebral organoids and in vivo brain imaging. Mol Psychiatry 2019; 24:294-311. [PMID: 30401811 PMCID: PMC6344377 DOI: 10.1038/s41380-018-0292-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 09/13/2018] [Accepted: 10/08/2018] [Indexed: 01/22/2023]
Abstract
The molecular basis of how chromosome 16p13.11 microduplication leads to major psychiatric disorders is unknown. Here we have undertaken brain imaging of patients carrying microduplications in chromosome 16p13.11 and unaffected family controls, in parallel with iPS cell-derived cerebral organoid studies of the same patients. Patient MRI revealed reduced cortical volume, and corresponding iPSC studies showed neural precursor cell (NPC) proliferation abnormalities and reduced organoid size, with the NPCs therein displaying altered planes of cell division. Transcriptomic analyses of NPCs uncovered a deficit in the NFκB p65 pathway, confirmed by proteomics. Moreover, both pharmacological and genetic correction of this deficit rescued the proliferation abnormality. Thus, chromosome 16p13.11 microduplication disturbs the normal programme of NPC proliferation to reduce cortical thickness due to a correctable deficit in the NFκB signalling pathway. This is the first study demonstrating a biologically relevant, potentially ameliorable, signalling pathway underlying chromosome 16p13.11 microduplication syndrome in patient-derived neuronal precursor cells.
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Affiliation(s)
- Mandy Johnstone
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK.
- Centre for Genomic and Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK.
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
| | - Navneet A Vasistha
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Miruna C Barbu
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
| | - Owen Dando
- UK Dementia Research Institute at University of Edinburgh, Edinburgh Medical School, Edinburgh, UK
- Centre for Discovery Brain Sciences, University of Edinburgh, Hugh Robson Building, 15 George Square, Edinburgh, UK
| | - Karen Burr
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
- UK Dementia Research Institute at University of Edinburgh, Edinburgh Medical School, Edinburgh, UK
| | - Edward Christopher
- Centre for Genomic and Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Sophie Glen
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
- Centre for Genomic and Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Christelle Robert
- Royal (Dick) School of Veterinary Studies, The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Rana Fetit
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Kenneth G Macleod
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Matthew R Livesey
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
- UK Dementia Research Institute at University of Edinburgh, Edinburgh Medical School, Edinburgh, UK
| | - David St Clair
- Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, UK
| | - Douglas H R Blackwood
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
| | - Kirsty Millar
- Centre for Genomic and Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Neil O Carragher
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Giles E Hardingham
- UK Dementia Research Institute at University of Edinburgh, Edinburgh Medical School, Edinburgh, UK
- Centre for Discovery Brain Sciences, University of Edinburgh, Hugh Robson Building, 15 George Square, Edinburgh, UK
| | - David J A Wyllie
- Centre for Discovery Brain Sciences, University of Edinburgh, Hugh Robson Building, 15 George Square, Edinburgh, UK
| | - Eve C Johnstone
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
| | - Heather C Whalley
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Andrew M McIntosh
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
- Centre for Genomic and Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Stephen M Lawrie
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Siddharthan Chandran
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
- UK Dementia Research Institute at University of Edinburgh, Edinburgh Medical School, Edinburgh, UK.
- Centre for Brain Development and Repair, Bangalore, India.
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Wu R, Chen B, Jia X, Qiu Y, Liu M, Huang C, Feng J, Wu Q. Interleukin-1β influences functional regeneration following nerve injury in mice through nuclear factor-κB signaling pathway. Immunology 2019; 156:235-248. [PMID: 30418673 DOI: 10.1111/imm.13022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 10/10/2018] [Accepted: 11/02/2018] [Indexed: 12/24/2022] Open
Abstract
This study focuses on investigating the role of interleukin-1β (IL-1β) in functional regeneration following nerve injury in mice. A microarray-based mRNA profiling study was used to analyze the expression level of IL-1β in peripheral nerve regeneration. Quantitative real-time polymerase chain reaction and Western blot were applied to assess the IL-1β expressions of C57BL/6J-crush and C57BL/6J-crush+IL-1β mice at different post-injury time-points after the standard sciatic nerve crush injury. The outcomes of nerve regeneration were evaluated by behavioral tests. IL-1β was found to be up-regulated in peripheral nerve regeneration and significantly raised on the 3rd day and returned to normal levels on the 14th day after nerve injury. Compared with C57BL/6J-crush+IL-1β mice, the nerve regeneration of C57BL/6J-crush mice was worse after nerve crush injury. IL-1β increased mechanical sensitivity and stimulated amplitude. IL-1β could benefit the recovery of sciatic nerve crush injury by facilitating nerve regeneration.
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Affiliation(s)
- Ruoyu Wu
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Bi Chen
- Department of Orthopedic Surgery, Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiang Jia
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yu Qiu
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Mengyu Liu
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Chengsheng Huang
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jie Feng
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qingkai Wu
- Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Tuazon JP, Castelli V, Lee JY, Desideri GB, Stuppia L, Cimini AM, Borlongan CV. Neural Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1201:79-91. [PMID: 31898782 DOI: 10.1007/978-3-030-31206-0_4] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Neural stem cell (NSC) transplantation has provided the basis for the development of potentially powerful new therapeutic cell-based strategies for a broad spectrum of clinical diseases, including stroke, psychiatric illnesses such as fetal alcohol spectrum disorders, and cancer. Here, we discuss pertinent preclinical investigations involving NSCs, including how NSCs can ameliorate these diseases, the current barriers hindering NSC-based treatments, and future directions for NSC research. There are still many translational requirements to overcome before clinical therapeutic applications, such as establishing optimal dosing, route of delivery, and timing regimens and understanding the exact mechanism by which transplanted NSCs lead to enhanced recovery. Such critical lab-to-clinic investigations will be necessary in order to refine NSC-based therapies for debilitating human disorders.
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Affiliation(s)
- Julian P Tuazon
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA
| | - Vanessa Castelli
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA
| | - Jea-Young Lee
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA
| | | | - Liborio Stuppia
- Department of Psychological, Humanistic and Territorial Sciences, University G. D'Annunzio, Chieti, Italy
| | - Anna Maria Cimini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine, Department of Biology, Temple University, Philadelphia, PA, USA
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, FL, USA.
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Ruiz-Perera LM, Schneider L, Windmöller BA, Müller J, Greiner JFW, Kaltschmidt C, Kaltschmidt B. NF-κB p65 directs sex-specific neuroprotection in human neurons. Sci Rep 2018; 8:16012. [PMID: 30375448 PMCID: PMC6207661 DOI: 10.1038/s41598-018-34394-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/15/2018] [Indexed: 12/17/2022] Open
Abstract
Protection of neurons against oxidative stress is crucial during neuronal development, maintenance and for treating neurodegenerative diseases. However, little is known about the molecular mechanisms underlying sex-specific maturation and survival of neurons. In the present study, we demonstrate NF-κB-p65 mediated neuroprotection in human glutamatergic neurons differentiated from inferior turbinate stem cells (ITSCs) in a sex-dependent manner. We successfully differentiated ITSCs into MAP-2+/NF200+/Synaptophysin+/vGlut2+-glutamatergic neurons in vitro and ex vivo and validated their functionality. TNF-α-dependent NF-κB-p65 activation was accompanied by significant neuroprotection against oxidative stress-induced neuronal death, which was surprisingly higher in neurons from female donors. Accordingly, sex-specific neuroprotection of female neurons was followed by an increased expression of special NF-κB target genes SOD2 and IGF2. Among these, SOD2 is a well known gene protecting cells against oxidative stress resulting in longevity. In addition, IGF2 is known to promote synapse formation and spine maturation, and it has antioxidant and neuroprotective effects against oxidative damage. In conclusion, we show that NF-κB-p65 is a key player in neuroprotection of human neurons, however the protective gene expression program beneath it differs between sexes. Our findings are in accordance with the increasing evidences pointing towards sex-specific differences in risk and severity of neurodegenerative diseases.
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Affiliation(s)
| | | | | | - Janine Müller
- Molecular Neurobiology, University of Bielefeld, Bielefeld, Germany
| | | | | | - Barbara Kaltschmidt
- Molecular Neurobiology, University of Bielefeld, Bielefeld, Germany. .,Department of Cell Biology, University of Bielefeld, Bielefeld, Germany.
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Putatunda R, Zhang Y, Li F, Yang XF, Barbe MF, Hu W. Adult neurogenic deficits in HIV-1 Tg26 transgenic mice. J Neuroinflammation 2018; 15:287. [PMID: 30314515 PMCID: PMC6182864 DOI: 10.1186/s12974-018-1322-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 09/24/2018] [Indexed: 02/08/2023] Open
Abstract
Background Even in the antiretroviral treatment (ART) era, HIV-1-infected patients suffer from milder forms of HIV-1-associated neurocognitive disorders (HAND). While the viral proteins Tat and gp120 have been shown to individually inhibit the proliferation and neural differentiation of neural stem cells (NSCs), no studies have characterized the effects of all the combined viral proteins on adult neurogenesis. Methods The HIV-1 Tg26 transgenic mouse model was used due to its clinical relevance to ART-controlled HIV-1-infected patients who lack active viral replication but suffer from continuous stress from the viral proteins. Quantitative RT-PCR analysis was performed to validate the expression of viral genes in the neurogenic zones. In vitro stemness and lineage differentiation assays were performed in cultured NSCs from HIV-1 Tg26 transgenic mice and their wild-type littermates. Hippocampal neurogenic lineage analysis was performed to determine potential changes in initial and late differentiation of NSCs in the subgranular zone (SGZ). Finally, fluorescent retroviral labeling of mature dentate granule neurons was performed to assess dendritic complexity and dendritic spine densities. Results Varying copy numbers of partial gag (p17), tat (unspliced and spliced variants), env (gp120), vpu, and nef transcripts were detected in the neurogenic zones of Tg26 mice. Significantly fewer primary neurospheres and a higher percentage of larger sized primary neurospheres were generated from Tg26 NSCs than from littermated wild-type mouse NSCs, implying that Tg26 mouse NSCs exhibit deficits in initial differentiation. In vitro differentiation assays revealed that Tg26 mouse NSCs have reduced neuronal differentiation and increased astrocytic differentiation. In the SGZs of Tg26 mice, significantly higher amounts of quiescent NSCs, as well as significantly lower levels of active NSCs, proliferating neural progenitor cells, and neuroblasts, were observed. Finally, newborn mature granule neurons in the dentate gyri of Tg26 mice had deficiencies in dendritic arborization, dendritic length, and dendritic spine density. Conclusions Both in vitro and in vivo studies demonstrate that HIV-1 Tg26 mice have early- and late-stage neurogenesis deficits, which could possibly contribute to the progression of HAND. Future therapies should be targeting this process to ameliorate, if not eliminate HAND-like symptoms in HIV-1-infected patients.
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Affiliation(s)
- Raj Putatunda
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA.,Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Yonggang Zhang
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA.,Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Fang Li
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA.,Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Xiao-Feng Yang
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA.,Department of Pharmacology, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Mary F Barbe
- Department of Anatomy and Cell Biology, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Wenhui Hu
- Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA. .,Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA.
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Wang LQ, Yu P, Li B, Guo YH, Liang ZR, Zheng LL, Yang JH, Xu H, Liu S, Zheng LS, Zhou H, Qu LH. miR-372 and miR-373 enhance the stemness of colorectal cancer cells by repressing differentiation signaling pathways. Mol Oncol 2018; 12:1949-1964. [PMID: 30171794 PMCID: PMC6210048 DOI: 10.1002/1878-0261.12376] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 07/28/2018] [Accepted: 08/10/2018] [Indexed: 01/05/2023] Open
Abstract
miR‐372/373, a cluster of stem cell‐specific microRNAs transactivated by the Wnt pathway, has been reported to be dysregulated in various cancers, particularly colorectal cancer (CRC); however, the unique role of these microRNAs in cancer remains to be discovered. In the present study, we characterized the upregulation in expression of miR‐372/373 in CRC tissues from The Cancer Genome Atlas data, and then showed that overexpression of miR‐372/373 enhanced the stemness of CRC cells by enriching the CD26/CD24‐positive cell population and promoting self‐renewal, chemotherapy resistance and the invasive potential of CRC cells. To clarify the mechanism underlying microRNA‐induced stemness, we profiled 45 cell signaling pathways in CRC cells overexpressing miR‐372/373 and found that stemness‐related pathways, such as Nanog and Hedgehog, were upregulated. Instead, differentiation‐related pathways, such as NFκB, MAPK/Erk and VDR, were markedly repressed by miR‐372/373. Numerous new targets of miR‐372/373 were identified, including SPOP, VDR and SETD7, all of which are factors important for cell differentiation. Furthermore, in contrast to the increase in miR‐372/373 expression in CRC tissues, the expression levels of SPOP and VDR mRNA were significantly downregulated in these tissues, indicative of the poor differentiation status of CRC. Taken together, our findings suggest that miR‐372/373 enhance CRC cell stemness by repressing the expression of differentiation genes. These results provide new insights for understanding the function and mechanisms of stem cell‐specific microRNAs in the development of metastasis and drug resistance in CRC.
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Affiliation(s)
- Lu-Qin Wang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Peng Yu
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Bin Li
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yan-Hua Guo
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zi-Rui Liang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Ling-Ling Zheng
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jian-Hua Yang
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Hui Xu
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shun Liu
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Li-Si Zheng
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Hui Zhou
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Liang-Hu Qu
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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Li L, Zhang J, Gao H, Ma Y. Nestin is highly expressed in foetal spinal cord isolated from placenta previa patients and promotes inflammation by enhancing NF-κB activity. Biomarkers 2018; 23:597-602. [PMID: 29697001 DOI: 10.1080/1354750x.2018.1468824] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ling Li
- Department of Obstetrics, Qilu Hospital of Shandong University, Shandong University, Jinan, Shandong, China
- Department of Obstetrics, People’s Hospital of Rizhao City, Rizhao, Shandong, China
| | - Jing Zhang
- Department of Obstetrics, Hospital of Traditional Chinese Medicine of Rizhao City, Rizhao, Shandong, China
| | - Huahe Gao
- Department of Obstetrics, Hospital of Traditional Chinese Medicine of Rizhao City, Rizhao, Shandong, China
| | - Yuyan Ma
- Department of Obstetrics, Qilu Hospital of Shandong University, Shandong University, Jinan, Shandong, China
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Nizamudeen ZA, Chakrabarti L, Sottile V. Exposure to the ROCK inhibitor fasudil promotes gliogenesis of neural stem cells in vitro. Stem Cell Res 2018; 28:75-86. [DOI: 10.1016/j.scr.2018.02.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/30/2018] [Accepted: 02/02/2018] [Indexed: 12/27/2022] Open
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Zhang H, Zhang D, Li H, Yan H, Zhang Z, Zhou C, Chen Q, Ye Z, Hang C. Biphasic activation of nuclear factor-κB and expression of p65 and c-Rel following traumatic neuronal injury. Int J Mol Med 2018; 41:3203-3210. [PMID: 29568960 PMCID: PMC5881643 DOI: 10.3892/ijmm.2018.3567] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 02/22/2018] [Indexed: 01/28/2023] Open
Abstract
The transcription factor nuclear factor-κB (NF-κB) has been shown to function as a key regulator of cell death or survival in neuronal cells. Previous studies indicate that the biphasic activation of NF-κB occurs following experimental neonatal hypoxia-ischemia and subarachnoid hemorrhage. However, the comprehensive understanding of NF-κB activity following traumatic brain injury (TBI) is incomplete. In the current study, an in vitro model of TBI was designed to investigate the NF-κB activity and expression of p65 and c-Rel subunits following traumatic neuronal injury. Primary cultured neurons were assigned to control and transected groups. NF-κB activity was detected by electrophoretic mobility shift assay. Western blotting and immunofluorescence were used to investigate the expression and distribution of p65 and c-Rel. Reverse transcription-quantitative polymerase chain reaction was performed to assess the downstream genes of NF-κB. Lactate dehydrogenase (LDH) quantification and trypan blue staining were used to estimate the neuronal injury. Double peaks of elevated NF-κB activity were observed at 1 and 24 h following transection. The expression levels of downstream genes exhibited similar changes. The protein levels of p65 also presented double peaks while c-Rel was elevated significantly in the late stage. The results of the trypan blue staining and LDH leakage assays indicated there was no sustained neuronal injury during the late peak of NF-κB activity. In conclusion, biphasic activation of NF-κB is induced following experimental traumatic neuronal injury. The elevation of p65 and c-Rel levels at different time periods suggests that within a single neuron, NF-κB may participate in different pathophysiological processes.
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Affiliation(s)
- Huasheng Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Dingding Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Hua Li
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Huiying Yan
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Zihuan Zhang
- Department of Neurosurgery, Zhongdu Hospital, Bengbu, Anhui 233004, P.R. China
| | - Chenhui Zhou
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Qiang Chen
- Department of Neurosurgery, Southern Medical University (Guangzhou), Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Zhennan Ye
- Department of Neurosurgery, Southern Medical University (Guangzhou), Jinling Hospital, Nanjing, Jiangsu 210002, P.R. China
| | - Chunhua Hang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
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Zhang Y, Xu D, Qi H, Yuan Y, Liu H, Yao S, Yuan S, Zhang J. Enriched environment promotes post-stroke neurogenesis through NF-κB-mediated secretion of IL-17A from astrocytes. Brain Res 2018; 1687:20-31. [PMID: 29481794 DOI: 10.1016/j.brainres.2018.02.030] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/16/2018] [Accepted: 02/20/2018] [Indexed: 01/01/2023]
Abstract
Enriched environment (EE) has been shown to promote post-stroke neurogenesis and functional recovery. However, the underlying molecular mechanisms remains poorly understood. Male C57BL/6 mice underwent 60-min middle cerebral artery occlusion (MCAO) followed by reperfusion, after which mice were housed in either standard environment (SE) or EE. We found that post-ischemic EE exhibited reduced protein level of nuclear factor κB (NF-κB)/p65 in cytoplasm and increased its expression correspondingly in nucleus at 28 days post-ischemia (dpi). However, post-ischemic EE had no effects on terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (TUNEL)-positive cells in ischemic hemisphere at 28dpi. EE mice treated with NF-kB inhibitor Bay11-7082 had decreased subventricular zone (SVZ) neural precursor cells (NPCs) proliferation, neuronal differentiation and subsequent functional recovery after stroke at 28dpi. Bay11-7082 treatment attenuated the promoting effects of post-ischemic EE on interleukin 17A (IL-17A) messenger RNA (mRNA) and protein expression at 28dpi. Furthermore, our in vitro data revealed that in primary astrocyte cultures addition of Bay11-7082 markedly decreased the expression of IL-17A in both the cell lysate and culture supernatant of activated astrocytes. Blockade of IL-17A with neutralizing antibody abrogated the promoting role of EE in NPCs proliferation derived from SVZ, neuronal differentiation and subsequent functional recovery after stroke. Thus, our results reveal a previously uncharacterized property of NF-κB/IL-17A signaling pathway in EE-mediated neurogenesis and functional recovery after ischemic stroke.
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Affiliation(s)
- Yujing Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Dan Xu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hong Qi
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yin Yuan
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hong Liu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shanglong Yao
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shiying Yuan
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Jiancheng Zhang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Xiao X, Putatunda R, Zhang Y, Soni PV, Li F, Zhang T, Xin M, Luo JJ, Bethea JR, Cheng Y, Hu W. Lymphotoxin β receptor-mediated NFκB signaling promotes glial lineage differentiation and inhibits neuronal lineage differentiation in mouse brain neural stem/progenitor cells. J Neuroinflammation 2018; 15:49. [PMID: 29463313 PMCID: PMC5819232 DOI: 10.1186/s12974-018-1074-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 01/22/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Lymphotoxin (LT) is a lymphokine mainly expressed in lymphocytes. LTα binds one or two membrane-associated LTβ to form LTα2β1 or LTα1β2 heterotrimers. The predominant LTα1β2 binds to LTβ receptor (LTβR) primarily expressed in epithelial and stromal cells. Most studies on LTβR signaling have focused on the organization, development, and maintenance of lymphoid tissues. However, the roles of LTβR signaling in the nervous system, particularly in neurogenesis, remain unknown. Here, we investigated the role of LTβR-mediated NFκB signaling in regulating neural lineage differentiation. METHODS The C57BL/6J wild-type and GFAP-dnIκBα transgenic mice were used. Serum-free embryoid bodies were cultured from mouse embryonic stem cells and further induced into neural stem/progenitor cells (NSCs/NPCs). Primary neurospheres were cultured from embryonic and adult mouse brains followed by monolayer culture for amplification/passage. NFκB activation was determined by adenovirus-mediated NFκB-firefly-luciferase reporter assay and p65/RelB/p52 nuclear translocation assay. LTβR mRNA expression was evaluated by quantitative RT-PCR and LTβR protein expression was determined by immunohistochemistry and Western blot analysis. Multilabeled immunocytochemistry or immunohistochemistry followed by fluorescent confocal microscopy and quantitative analysis of neural lineage differentiation were performed. Graphing and statistical analysis were performed with GraphPad Prism software. RESULTS In cultured NSCs/NPCs, LTα1β2 stimulation induced an activation of classical and non-classical NFκB signaling. The expression of LTβR-like immunoreactivity in GFAP+/Sox2+ NSCs was identified in well-established neurogenic zones of adult mouse brain. Quantitative RT-PCR and Western blot analysis validated the expression of LTβR in cultured NSCs/NPCs and brain neurogenic regions. LTβR expression was significantly increased during neural induction. LTα1β2 stimulation in cultured NSCs/NPCs promoted astroglial and oligodendrocytic lineage differentiation, but inhibited neuronal lineage differentiation. Astroglial NFκB inactivation in GFAP-dnIκBα transgenic mice rescued LTβR-mediated abnormal phenotypes of cultured NSCs/NPCs. CONCLUSION This study provides the first evidence for the expression and function of LTβR signaling in NSCs/NPCs. Activation of LTβR signaling promotes glial lineage differentiation. Our results suggest that neurogenesis is regulated by the adaptive immunity and inflammatory responses.
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Affiliation(s)
- Xiao Xiao
- Department of Neurosurgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Raj Putatunda
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Yonggang Zhang
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Priya V Soni
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Fang Li
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Ting Zhang
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Mingyang Xin
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Jin Jun Luo
- Department of Neurology, Temple University Lewis Katz School of Medicine, 3401 N Broad Street, Philadelphia, PA, USA
| | - John R Bethea
- Department of Biology, Drexel University, Philadelphia, PA, USA
| | - Yuan Cheng
- Department of Neurosurgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China.
| | - Wenhui Hu
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, 19140, USA.
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Grasselli C, Ferrari D, Zalfa C, Soncini M, Mazzoccoli G, Facchini FA, Marongiu L, Granucci F, Copetti M, Vescovi AL, Peri F, De Filippis L. Toll-like receptor 4 modulation influences human neural stem cell proliferation and differentiation. Cell Death Dis 2018; 9:280. [PMID: 29449625 PMCID: PMC5833460 DOI: 10.1038/s41419-017-0139-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 11/03/2017] [Accepted: 11/03/2017] [Indexed: 12/13/2022]
Abstract
Toll-like receptor 4 (TLR4) activation is pivotal to innate immunity and has been shown to regulate proliferation and differentiation of human neural stem cells (hNSCs) in vivo. Here we study the role of TLR4 in regulating hNSC derived from the human telencephalic-diencephalic area of the fetal brain and cultured in vitro as neurospheres in compliance with Good Manifacture Procedures (GMP) guidelines. Similar batches have been used in recent clinical trials in ALS patients. We found that TLR2 and 4 are expressed in hNSCs as well as CD14 and MD-2 co-receptors, and TLR4 expression is downregulated upon differentiation. Activation of TLR4 signaling by lipopolysaccharide (LPS) has a positive effect on proliferation and/or survival while the inverse is observed with TLR4 inhibition by a synthetic antagonist. TLR4 activation promotes neuronal and oligodendrocyte differentiation and/or survival while TLR4 inhibition leads to increased apoptosis. Consistently, endogenous expression of TLR4 is retained by hNSC surviving after transplantation in ALS rats or immunocompromised mice, thus irrespectively of the neuroinflammatory environment. The characterization of downstream signaling of TLR4 in hNSCs has suggested some activation of the inflammasome pathway. This study suggests TLR4 signaling as essential for hNSC self-renewal and as a novel target for the study of neurogenetic mechanisms.
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Affiliation(s)
- Chiara Grasselli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Daniela Ferrari
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Cristina Zalfa
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Matias Soncini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Gianluigi Mazzoccoli
- Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, FG, Italy
| | - Fabio A Facchini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Laura Marongiu
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Francesca Granucci
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
| | - Massimiliano Copetti
- Unit of Biostatistics, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, FG, Italy
| | - Angelo Luigi Vescovi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy
- Department of Regenerative Medicine, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, FG, Italy
| | - Francesco Peri
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, MI, Italy.
| | - Lidia De Filippis
- Department of Regenerative Medicine, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, FG, Italy.
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Sui Y, Liu Z, Park SH, Thatcher SE, Zhu B, Fernandez JP, Molina H, Kern PA, Zhou C. IKKβ is a β-catenin kinase that regulates mesenchymal stem cell differentiation. JCI Insight 2018; 3:96660. [PMID: 29367460 PMCID: PMC5821193 DOI: 10.1172/jci.insight.96660] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 12/19/2017] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) can give rise to both adipocytes and osteoblasts, but the molecular mechanisms underlying MSC fate determination remain poorly understood. IκB kinase β (IKKβ), a central coordinator of inflammation and immune responses through activation of NF-κB, has been implicated as a critical molecular link between obesity and metabolic disorders. Here, we show that IKKβ can reciprocally regulate adipocyte and osteoblast differentiation of murine and human MSCs through an NF-κB-independent mechanism. IKKβ is a β-catenin kinase that phosphorylates the conserved degron motif of β-catenin to prime it for β-TrCP-mediated ubiquitination and degradation, thereby increasing adipogenesis and inhibiting osteogenesis in MSCs. Animal studies demonstrated that deficiency of IKKβ in BM mesenchymal stromal cells increased bone mass and decreased BM adipocyte formation in adult mice. In humans, IKKβ expression in adipose tissue was also positively associated with increased adiposity and elevated β-catenin phosphorylation. These findings suggest IKKβ as a key molecular switch that regulates MSC fate, and they provide potentially novel mechanistic insights into the understanding of the cross-regulation between the evolutionarily conserved IKKβ and Wnt/β-catenin signaling pathways. The IKKβ-Wnt axis we uncovered may also have important implications for development, homeostasis, and disease pathogenesis.
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Affiliation(s)
- Yipeng Sui
- Department of Pharmacology and Nutritional Sciences, and
| | - Zun Liu
- Department of Pharmacology and Nutritional Sciences, and
| | - Se-Hyung Park
- Department of Pharmacology and Nutritional Sciences, and
| | | | - Beibei Zhu
- Department of Medicine, University of Kentucky, Lexington, Kentucky, USA
| | - Joseph P. Fernandez
- Proteomics Resource Center, The Rockefeller University, New York, New York, USA
| | - Henrik Molina
- Proteomics Resource Center, The Rockefeller University, New York, New York, USA
| | - Philip A. Kern
- Department of Medicine, University of Kentucky, Lexington, Kentucky, USA
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Song L, Tsai AC, Yuan X, Bejoy J, Sart S, Ma T, Li Y. Neural Differentiation of Spheroids Derived from Human Induced Pluripotent Stem Cells-Mesenchymal Stem Cells Coculture. Tissue Eng Part A 2018; 24:915-929. [PMID: 29160172 DOI: 10.1089/ten.tea.2017.0403] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Organoids, the condensed three-dimensional (3D) tissues emerged at the early stage of organogenesis, are a promising approach to regenerate functional and vascularized organ mimics. While incorporation of heterotypic cell types, such as human mesenchymal stem cells (hMSCs) and human induced pluripotent stem cells (hiPSCs)-derived neural progenitors aid neural organ development, the interactions of secreted factors during neurogenesis have not been well understood. The objective of this study is to investigate the impact of the composition and structure of 3D hybrid spheroids of hiPSCs and hMSCs on dorsal cortical differentiation and the secretion of extracellular matrices and trophic factors in vitro. The hybrid spheroids were formed at different hiPSC:hMSC ratios (100:0, 75:25, 50:50, 25:75, 0:100) using direct mixing or pre-hiPSC aggregation method, which generated dynamic spheroid structure. The cellular organization, proliferation, neural marker expression, and the secretion of extracellular matrix proteins and the cytokines were characterized. The incorporation of MSCs upregulated Nestin and β-tubulin III expression (the dorsal cortical identity was shown by Pax6 and TBR1 expression), matrix remodeling proteins, and the secretion of transforming growth factor-β1 and prostaglandin E2. This study indicates that the appropriate composition and structure of hiPSC-MSC spheroids promote neural differentiation and trophic factor and matrix secretion due to the heterotypic cell-cell interactions.
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Affiliation(s)
- Liqing Song
- 1 Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University; Tallahassee , Florida
| | - Ang-Chen Tsai
- 1 Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University; Tallahassee , Florida
| | - Xuegang Yuan
- 1 Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University; Tallahassee , Florida
| | - Julie Bejoy
- 1 Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University; Tallahassee , Florida
| | - Sébastien Sart
- 2 Hydrodynamics Laboratory (LadHyX) , Department of Mechanics, Ecole Polytechnique, CNRS-UMR7646, Palaiseau, France
| | - Teng Ma
- 1 Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University; Tallahassee , Florida
| | - Yan Li
- 1 Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University; Tallahassee , Florida
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Wang Z, He X, Fan X. Postnatal administration of memantine rescues TNF-α-induced decreased hippocampal precursor proliferation. Neurosci Lett 2018; 662:173-180. [DOI: 10.1016/j.neulet.2017.10.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/19/2017] [Accepted: 10/13/2017] [Indexed: 01/16/2023]
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Direct exposure to mild heat promotes proliferation and neuronal differentiation of neural stem/progenitor cells in vitro. PLoS One 2017; 12:e0190356. [PMID: 29287093 PMCID: PMC5747471 DOI: 10.1371/journal.pone.0190356] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 12/13/2017] [Indexed: 11/24/2022] Open
Abstract
Heat acclimation in rats is associated with enhanced neurogenesis in thermoregulatory centers of the hypothalamus. To elucidate the mechanisms for heat acclimation, we investigated the effects of direct mild heat exposure on the proliferation and differentiation of neural stem/progenitor cells (NSCs/NPCs). The NSCs/NPCs isolated from forebrain cortices of 14.5-day-old rat fetuses were propagated as neurospheres at either 37.0°C (control) or 38.5°C (mild heat exposure) for four days, and the effects on proliferation were investigated by MTS cell viability assay, measurement of neurosphere diameter, and counting the total number of cells. The mRNA expressions of heat shock proteins (HSPs) and brain-derived neurotrophic factor (BDNF), cAMP response element-binding (CREB) protein and Akt phosphorylation levels, and intracellular reactive oxygen species (ROS) levels were analyzed using real time PCR, Western blotting and CM-H2DCFDA assay respectively. Heat exposure under proliferation condition increased NSC/NPC viability, neurosphere diameter, and cell count. BDNF mRNA expression, CREB phosphorylation, and ROS level were also increased by heat exposure. Heat exposure increased HSP27 mRNA expression concomitant with enhanced p-Akt level. Moreover, treatment with LY294002 (a PI3K inhibitor) abolished the effects of heat exposure on NSC/NPC proliferation. Furthermore, heat exposure under differentiation conditions increased the proportion of cells positive for Tuj1 (a neuronal marker). These findings suggest that mild heat exposure increases NSC/NPC proliferation, possibly through activation of the Akt pathway, and also enhances neuronal differentiation. Direct effects of temperature on NSCs/NPCs may be one of the mechanisms involved in hypothalamic neurogenesis in heat-acclimated rats. Such heat-induced neurogenesis could also be an effective therapeutic strategy for neurodegenerative diseases.
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O'Léime CS, Cryan JF, Nolan YM. Nuclear deterrents: Intrinsic regulators of IL-1β-induced effects on hippocampal neurogenesis. Brain Behav Immun 2017; 66:394-412. [PMID: 28751020 DOI: 10.1016/j.bbi.2017.07.153] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 07/15/2017] [Accepted: 07/23/2017] [Indexed: 12/11/2022] Open
Abstract
Hippocampal neurogenesis, the process by which new neurons are born and develop into the host circuitry, begins during embryonic development and persists throughout adulthood. Over the last decade considerable insights have been made into the role of hippocampal neurogenesis in cognitive function and the cellular mechanisms behind this process. Additionally, an increasing amount of evidence exists on the impact of environmental factors, such as stress and neuroinflammation on hippocampal neurogenesis and subsequent impairments in cognition. Elevated expression of the pro-inflammatory cytokine interleukin-1β (IL-1β) in the hippocampus is established as a significant contributor to the neuronal demise evident in many neurological and psychiatric disorders and is now known to negatively regulate hippocampal neurogenesis. In order to prevent the deleterious effects of IL-1β on neurogenesis it is necessary to identify signalling pathways and regulators of neurogenesis within neural progenitor cells that can interact with IL-1β. Nuclear receptors are ligand regulated transcription factors that are involved in modulating a large number of cellular processes including neurogenesis. In this review we focus on the signalling mechanisms of specific nuclear receptors involved in regulating neurogenesis (glucocorticoid receptors, peroxisome proliferator activated receptors, estrogen receptors, and nuclear receptor subfamily 2 group E member 1 (NR2E1 or TLX)). We propose that these nuclear receptors could be targeted to inhibit neuroinflammatory signalling pathways associated with IL-1β. We discuss their potential to be therapeutic targets for neuroinflammatory disorders affecting hippocampal neurogenesis and associated cognitive function.
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Affiliation(s)
- Ciarán S O'Léime
- Department of Anatomy and Neuroscience, University College Cork, Ireland
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Ireland; APC Microbiome Institute, University College Cork, Ireland
| | - Yvonne M Nolan
- Department of Anatomy and Neuroscience, University College Cork, Ireland; APC Microbiome Institute, University College Cork, Ireland.
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Mellows B, Mitchell R, Antonioli M, Kretz O, Chambers D, Zeuner MT, Denecke B, Musante L, Ramachandra DL, Debacq-Chainiaux F, Holthofer H, Joch B, Ray S, Widera D, David AL, Huber TB, Dengjel J, De Coppi P, Patel K. Protein and Molecular Characterization of a Clinically Compliant Amniotic Fluid Stem Cell-Derived Extracellular Vesicle Fraction Capable of Accelerating Muscle Regeneration Through Enhancement of Angiogenesis. Stem Cells Dev 2017; 26:1316-1333. [PMID: 28679310 DOI: 10.1089/scd.2017.0089] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The secretome of human amniotic fluid stem cells (AFSCs) has great potential as a therapeutic agent in regenerative medicine. However, it must be produced in a clinically compliant manner before it can be used in humans. In this study, we developed a means of producing a biologically active secretome from AFSCs that is free of all exogenous molecules. We demonstrate that the full secretome is capable of promoting stem cell proliferation, migration, and protection of cells against senescence. Furthermore, it has significant anti-inflammatory properties. Most importantly, we show that it promotes tissue regeneration in a model of muscle damage. We then demonstrate that the secretome contains extracellular vesicles (EVs) that harbor much, but not all, of the biological activity of the whole secretome. Proteomic characterization of the EV and free secretome fraction shows the presence of numerous molecules specific to each fraction that could be key regulators of tissue regeneration. Intriguingly, we show that the EVs only contain miRNA and not mRNA. This suggests that tissue regeneration in the host is mediated by the action of EVs modifying existing, rather than imposing new, signaling pathways. The EVs harbor significant anti-inflammatory activity as well as promote angiogenesis, the latter may be the mechanistic explanation for their ability to promote muscle regeneration after cardiotoxin injury.
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Affiliation(s)
- Ben Mellows
- 1 School of Biological Sciences, University of Reading , Reading, United Kingdom
| | - Robert Mitchell
- 1 School of Biological Sciences, University of Reading , Reading, United Kingdom
| | - Manuela Antonioli
- 2 Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases IRCCS 'Lazzaro Spallanzani' , Rome, Italy
| | - Oliver Kretz
- 3 Department of Medicine III, Faculty of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg, Germany .,4 Renal Division, Faculty of Medicine, Medical Centre, University of Freiburg , Freiburg, Germany .,5 Department of Medicine IV, Faculty of Medicine, University of Freiburg , Freiburg, Germany
| | - David Chambers
- 6 Wolfson Centre for Age-Related Diseases, King's College , London, United Kingdom
| | | | - Bernd Denecke
- 8 Interdisciplinary Centre for Clinical Research Aachen, RWTH Aachen University , Aachen, Germany
| | - Luca Musante
- 9 Centre for Bioanalytical Sciences (CBAS), Dublin City University , Dublin, Ireland
| | - Durrgah L Ramachandra
- 10 Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health , London, United Kingdom
| | | | - Harry Holthofer
- 9 Centre for Bioanalytical Sciences (CBAS), Dublin City University , Dublin, Ireland .,12 FRIAS Freiburg Institute for Advanced Studies, University of Freiburg , Freiburg, Germany
| | - Barbara Joch
- 5 Department of Medicine IV, Faculty of Medicine, University of Freiburg , Freiburg, Germany
| | - Steve Ray
- 13 Micregen, Biohub, Cheshire, United Kingdom
| | - Darius Widera
- 7 School of Pharmacy, University of Reading , Reading, United Kingdom
| | - Anna L David
- 14 Institute for Women's Health, University College London , London, United Kingdom .,15 NIHR University College London Hospitals Biomedical Research Centre , London, United Kingdom
| | - Tobias B Huber
- 3 Department of Medicine III, Faculty of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg, Germany .,4 Renal Division, Faculty of Medicine, Medical Centre, University of Freiburg , Freiburg, Germany .,12 FRIAS Freiburg Institute for Advanced Studies, University of Freiburg , Freiburg, Germany .,16 BIOSS Centre for Biological Signalling Studies and Centre for Systems Biology (ZBSA), Albert-Ludwigs University , Freiburg, Germany
| | - Joern Dengjel
- 12 FRIAS Freiburg Institute for Advanced Studies, University of Freiburg , Freiburg, Germany .,17 Department of Biology, University of Fribourg , Fribourg, Switzerland
| | - Paolo De Coppi
- 10 Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health , London, United Kingdom
| | - Ketan Patel
- 1 School of Biological Sciences, University of Reading , Reading, United Kingdom .,12 FRIAS Freiburg Institute for Advanced Studies, University of Freiburg , Freiburg, Germany
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Stem cell therapy for abrogating stroke-induced neuroinflammation and relevant secondary cell death mechanisms. Prog Neurobiol 2017; 158:94-131. [PMID: 28743464 DOI: 10.1016/j.pneurobio.2017.07.004] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/18/2017] [Accepted: 07/18/2017] [Indexed: 12/13/2022]
Abstract
Ischemic stroke is a leading cause of death worldwide. A key secondary cell death mechanism mediating neurological damage following the initial episode of ischemic stroke is the upregulation of endogenous neuroinflammatory processes to levels that destroy hypoxic tissue local to the area of insult, induce apoptosis, and initiate a feedback loop of inflammatory cascades that can expand the region of damage. Stem cell therapy has emerged as an experimental treatment for stroke, and accumulating evidence supports the therapeutic efficacy of stem cells to abrogate stroke-induced inflammation. In this review, we investigate clinically relevant stem cell types, such as hematopoietic stem cells (HSCs), mesenchymal stem cells (MSCs), endothelial progenitor cells (EPCs), very small embryonic-like stem cells (VSELs), neural stem cells (NSCs), extraembryonic stem cells, adipose tissue-derived stem cells, breast milk-derived stem cells, menstrual blood-derived stem cells, dental tissue-derived stem cells, induced pluripotent stem cells (iPSCs), teratocarcinoma-derived Ntera2/D1 neuron-like cells (NT2N), c-mycER(TAM) modified NSCs (CTX0E03), and notch-transfected mesenchymal stromal cells (SB623), comparing their potential efficacy to sequester stroke-induced neuroinflammation and their feasibility as translational clinical cell sources. To this end, we highlight that MSCs, with a proven track record of safety and efficacy as a transplantable cell for hematologic diseases, stand as an attractive cell type that confers superior anti-inflammatory effects in stroke both in vitro and in vivo. That stem cells can mount a robust anti-inflammatory action against stroke complements the regenerative processes of cell replacement and neurotrophic factor secretion conventionally ascribed to cell-based therapy in neurological disorders.
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45
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Acute inflammation regulates neuroregeneration through the NF-κB pathway in olfactory epithelium. Proc Natl Acad Sci U S A 2017; 114:8089-8094. [PMID: 28696292 DOI: 10.1073/pnas.1620664114] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Adult neural stem cells/progenitor cells residing in the basal layer of the olfactory epithelium are capable of reconstituting the neuroepithelium even after severe damage. The molecular events underlying this regenerative capacity remain elusive. Here we show that the repair of neuroepithelium after lesioning is accompanied by an acute, but self-limited, inflammatory process. Attenuation of inflammatory cell recruitment and cytokine production by dexamethasone impairs proliferation of progenitor horizontal basal cells (HBCs) and subsequent neuronal differentiation. Using TNF-α receptor-deficient mice, we identify TNF-α signaling as an important contributor to this inflammatory and reparative process, mainly through TNF-α receptor 1. HBC-selective genetic ablation of RelA (p65), the transcriptional activator of the NF-κB pathway, retards inflammation and impedes proliferation at the early stages of regeneration and suggests HBCs directly participate in cross-talk between immune response and neurogenesis. Loss of RelA in the regenerating neuroepithelium perturbs the homeostasis between proliferation and apoptosis while enhancing JNK signaling. Together, our results support a model in which acute inflammation after injury initiates important regenerative signals in part through NF-κB-mediated signaling that activates neural stem cells to reconstitute the olfactory epithelium.
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Sifuentes CJ, Kim JW, Swaroop A, Raymond PA. Rapid, Dynamic Activation of Müller Glial Stem Cell Responses in Zebrafish. Invest Ophthalmol Vis Sci 2017; 57:5148-5160. [PMID: 27699411 PMCID: PMC5054728 DOI: 10.1167/iovs.16-19973] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Purpose Zebrafish neurons regenerate from Müller glia following retinal lesions. Genes and signaling pathways important for retinal regeneration in zebrafish have been described, but our understanding of how Müller glial stem cell properties are regulated is incomplete. Mammalian Müller glia possess a latent neurogenic capacity that might be enhanced in regenerative therapies to treat degenerative retinal diseases. Methods To identify transcriptional changes associated with stem cell properties in zebrafish Müller glia, we performed a comparative transcriptome analysis from isolated cells at 8 and 16 hours following an acute photic lesion, prior to the asymmetric division that produces retinal progenitors. Results We report a rapid, dynamic response of zebrafish Müller glia, characterized by activation of pathways related to stress, nuclear factor–κB (NF-κB) signaling, cytokine signaling, immunity, prostaglandin metabolism, circadian rhythm, and pluripotency, and an initial repression of Wnt signaling. When we compared publicly available transcriptomes of isolated mouse Müller glia from two retinal degeneration models, we found that mouse Müller glia showed evidence of oxidative stress, variable responses associated with immune regulation, and repression of pathways associated with pluripotency, development, and proliferation. Conclusions Categories of biological processes/pathways activated following photoreceptor loss in regeneration-competent zebrafish Müller glia, which distinguished them from mouse Müller glia in retinal degeneration models, included cytokine signaling (notably NF-κB), prostaglandin E2 synthesis, expression of core clock genes, and pathways/metabolic states associated with pluripotency. These regulatory mechanisms are relatively unexplored as potential mediators of stem cell properties likely to be important in Müller glial cells for successful retinal regeneration.
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Affiliation(s)
- Christopher J Sifuentes
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, United States
| | - Jung-Woong Kim
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul, Korea 3Neurobiology-Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Anand Swaroop
- Neurobiology-Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Pamela A Raymond
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan, United States
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Obora K, Onodera Y, Takehara T, Frampton J, Hasei J, Ozaki T, Teramura T, Fukuda K. Inflammation-induced miRNA-155 inhibits self-renewal of neural stem cells via suppression of CCAAT/enhancer binding protein β (C/EBPβ) expression. Sci Rep 2017; 7:43604. [PMID: 28240738 PMCID: PMC5378916 DOI: 10.1038/srep43604] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/24/2017] [Indexed: 01/04/2023] Open
Abstract
Intracerebral inflammation resulting from injury or disease is implicated in disruption of neural regeneration and may lead to irreversible neuronal dysfunction. Analysis of inflammation-related microRNA profiles in various tissues, including the brain, has identified miR-155 among the most prominent miRNAs linked to inflammation. Here, we hypothesize that miR-155 mediates inflammation-induced suppression of neural stem cell (NSC) self-renewal. Using primary mouse NSCs and human NSCs derived from induced pluripotent stem (iPS) cells, we demonstrate that three important genes involved in NSC self-renewal (Msi1, Hes1 and Bmi1) are suppressed by miR-155. We also demonstrate that suppression of self-renewal genes is mediated by the common transcription factor C/EBPβ, which is a direct target of miR-155. Our study describes an axis linking inflammation and miR-155 to expression of genes related to NSC self-renewal, suggesting that regulation of miR-155 may hold potential as a novel therapeutic strategy for treating neuroinflammatory diseases.
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Affiliation(s)
- Kayoko Obora
- Department of Rehabilitation Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Yuta Onodera
- Division of Cell Biology for Regenerative Medicine, Institute of Advanced Clinical Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Toshiyuki Takehara
- Division of Cell Biology for Regenerative Medicine, Institute of Advanced Clinical Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - John Frampton
- School of Biomedical Engineering, Dalhousie University. Halifax, Nova Scotia, Canada
| | - Joe Hasei
- Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Toshifumi Ozaki
- Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takeshi Teramura
- Division of Cell Biology for Regenerative Medicine, Institute of Advanced Clinical Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Kanji Fukuda
- Department of Rehabilitation Medicine, Kindai University Faculty of Medicine, Osaka, Japan.,Division of Cell Biology for Regenerative Medicine, Institute of Advanced Clinical Medicine, Kindai University Faculty of Medicine, Osaka, Japan
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Protein Phosphatase 2A: a Double-Faced Phosphatase of Cellular System and Its Role in Neurodegenerative Disorders. Mol Neurobiol 2017; 55:1750-1761. [PMID: 28224476 DOI: 10.1007/s12035-017-0444-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 02/03/2017] [Indexed: 12/17/2022]
Abstract
Protein phosphatase 2A (PP2A), a ubiquitously expressed serine/threonine phosphatase, is a vitally important phosphatase for the cellular system. Structurally, it is constituted of three different subunits, namely catalytic subunit (PP2Ac), structural scaffold subunit (PP2A-A), and regulatory subunit (PP2A-B). All subunits have various isoforms, and catalytic and scaffold subunits are ubiquitously expressed, whereas regulatory subunits are more specific to tissue and cell type. It is the numerous possibilities of PP2A holoenzyme assembly with varying isoform components that make it possess a dual nature of activator or the inhibitory character in different signaling pathways, namely neural developmental pathways, Akt/protein kinase B pathway, NF-kB pathway, MAPK pathway, apoptosis pathway, and cell cycle progression to name a few. Importantly, the expression of PP2A in the brain is highest among the serine phosphatases and is known to actively participate in the neural development process. However, the exact mechanism of action of PP2A is still debated and enunciating the holoenzyme components, especially the regulatory subunit of PP2A involved in regulating neural developmental process is still poorly understood. In this review, we try to throw some light on the involvement of various PP2A holoenzyme forms in the process of neurogenesis and progression of neurodegenerative diseases.
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49
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Bielefeld P, Schouten M, Lucassen PJ, Fitzsimons CP. Transcription factor oscillations in neural stem cells: Implications for accurate control of gene expression. NEUROGENESIS 2017; 4:e1262934. [PMID: 28321433 PMCID: PMC5345753 DOI: 10.1080/23262133.2016.1262934] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/14/2016] [Accepted: 11/15/2016] [Indexed: 01/14/2023]
Abstract
Naturally occurring oscillations in glucocorticoids induce a cyclic activation of the glucocorticoid receptor (GR), a well-characterized ligand-activated transcription factor. These cycles of GR activation/deactivation result in rapid GR exchange at genomic response elements and GR recycling through the chaperone machinery, ultimately generating pulses of GR-mediated transcriptional activity of target genes. In a recent article we have discussed the implications of circadian and high-frequency (ultradian) glucocorticoid oscillations for the dynamic control of gene expression in hippocampal neural stem/progenitor cells (NSPCs) (Fitzsimons et al., Front. Neuroendocrinol., 2016). Interestingly, this oscillatory transcriptional activity is common to other transcription factors, many of which regulate key biological functions in NSPCs, such as NF-kB, p53, Wnt and Notch. Here, we discuss the oscillatory behavior of these transcription factors, their role in a biologically accurate target regulation and the potential importance for a dynamic control of transcription activity and gene expression in NSPCs.
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Affiliation(s)
- Pascal Bielefeld
- Neuroscience Program, Swammerdam Institute for Life Sciences, Faculty of Sciences, University of Amsterdam
| | - Marijn Schouten
- Neuroscience Program, Swammerdam Institute for Life Sciences, Faculty of Sciences, University of Amsterdam
| | - Paul J Lucassen
- Neuroscience Program, Swammerdam Institute for Life Sciences, Faculty of Sciences, University of Amsterdam
| | - Carlos P Fitzsimons
- Neuroscience Program, Swammerdam Institute for Life Sciences, Faculty of Sciences, University of Amsterdam
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Cvijetic S, Bortolotto V, Manfredi M, Ranzato E, Marengo E, Salem R, Canonico PL, Grilli M. Cell autonomous and noncell-autonomous role of NF-κB p50 in astrocyte-mediated fate specification of adult neural progenitor cells. Glia 2016; 65:169-181. [PMID: 27758000 DOI: 10.1002/glia.23085] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 09/19/2016] [Accepted: 09/29/2016] [Indexed: 12/22/2022]
Abstract
In previous work, we demonstrated that NF-κB p50 acts as crucial regulator of adult hippocampal neural progenitor cells (ahNPC). Indeed, NF-κB p50 knockout (KO) mice are characterized by remarkably reduced hippocampal neurogenesis. As a follow up to that work, herein we show that when cultured in vitro, ahNPC from wild type (WT) and p50KO mice are not significantly different in their neurogenic potential. This observation prompted us to investigate cell-autonomous and noncell-autonomous consequences of p50 absence on neuronal fate specification of ahNPC. In particular, we focused our attention on astrocytes, known to provide soluble proneurogenic signals, and investigated the influence of WT and p50KO astrocyte conditioned media (ACM) on WT and p50KO ahNPC differentiation. Interestingly, while WT ACM promoted both neuronal and astroglial differentiations, p50KO ACM only supported astroglial differentiation of WT ahNPC. By using a LC-MS/MS approach, we identified some proteins, which are significantly upregulated in p50KO compared with WT astrocytes. Among them, lipocalin-2 (LCN-2) was recognized as a novel astroglial-derived signal regulating neuronal fate specification of ahNPC. Interestingly, LCN-2 proneurogenic effect was greatly reduced in p50KO NPC, where LCN-2 receptor gene expression appeared downregulated. In addition to that, we demonstrated p50KO NPC unresponsiveness to both neuronal and astroglial fate specification signals from WT and p50KO ACM, and we identified a reduced expression of α2δ1, a thrombospondin-1 receptor, as another phenotypic change occurring in ahNPC in the absence of p50. Altogether, our data suggest that dysregulated NPC-astrocyte communication may contribute to a reduced hippocampal neurogenesis in p50KO mice in vivo. GLIA 2016 GLIA 2017;65:169-181.
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Affiliation(s)
- Suzana Cvijetic
- Laboratory of Neuroplasticity, Università del Piemonte Orientale, Novara, Italy.,Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Novara, Italy
| | - Valeria Bortolotto
- Laboratory of Neuroplasticity, Università del Piemonte Orientale, Novara, Italy.,Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Novara, Italy
| | - Marcello Manfredi
- ISALIT srl-Dipartimento di Scienze ed Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
| | - Elia Ranzato
- Dipartimento di Scienze ed Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
| | - Emilio Marengo
- Dipartimento di Scienze ed Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy.,ISALIT srl-Dipartimento di Scienze ed Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy
| | - Rita Salem
- Laboratory of Neuroplasticity, Università del Piemonte Orientale, Novara, Italy.,Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Novara, Italy
| | - Pier Luigi Canonico
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Novara, Italy
| | - Mariagrazia Grilli
- Laboratory of Neuroplasticity, Università del Piemonte Orientale, Novara, Italy.,Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Novara, Italy
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