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Zhang J, Chen S, Hu X, Huang L, Loh P, Yuan X, Liu Z, Lian J, Geng L, Chen Z, Guo Y, Chen B. The role of the peripheral system dysfunction in the pathogenesis of sepsis-associated encephalopathy. Front Microbiol 2024; 15:1337994. [PMID: 38298892 PMCID: PMC10828041 DOI: 10.3389/fmicb.2024.1337994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/04/2024] [Indexed: 02/02/2024] Open
Abstract
Sepsis is a condition that greatly impacts the brain, leading to neurological dysfunction and heightened mortality rates, making it one of the primary organs affected. Injury to the central nervous system can be attributed to dysfunction of various organs throughout the entire body and imbalances within the peripheral immune system. Furthermore, central nervous system injury can create a vicious circle with infection-induced peripheral immune disorders. We collate the pathogenesis of septic encephalopathy, which involves microglial activation, programmed cell death, mitochondrial dysfunction, endoplasmic reticulum stress, neurotransmitter imbalance, and blood-brain barrier disruption. We also spotlight the effects of intestinal flora and its metabolites, enterocyte-derived exosomes, cholinergic anti-inflammatory pathway, peripheral T cells and their cytokines on septic encephalopathy.
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Affiliation(s)
- Jingyu Zhang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shuangli Chen
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiyou Hu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lihong Huang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - PeiYong Loh
- School of International Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinru Yuan
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhen Liu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jinyu Lian
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lianqi Geng
- Binhai New Area Hospital of TCM, Fourth Teaching Hospital of Tianjin University of TCM, Tianjin, China
| | - Zelin Chen
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Modern Chinese Medicine Theory of Innovation and Application, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- School of Acupuncture and Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Yi Guo
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Modern Chinese Medicine Theory of Innovation and Application, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo Chen
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Binhai New Area Hospital of TCM, Fourth Teaching Hospital of Tianjin University of TCM, Tianjin, China
- Tianjin Key Laboratory of Modern Chinese Medicine Theory of Innovation and Application, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- School of Acupuncture and Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
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2
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Laouarem Y, Kassoussi A, Zahaf A, Hutteau-Hamel T, Mellouk A, Bobé P, Mattern C, Schumacher M, Traiffort E. Functional cooperation of the hedgehog and androgen signaling pathways during developmental and repairing myelination. Glia 2021; 69:1369-1392. [PMID: 33484204 DOI: 10.1002/glia.23967] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 12/21/2022]
Abstract
Hedgehog morphogens control fundamental cellular processes during tissue development and regeneration. In the central nervous system (CNS), Hedgehog signaling has been implicated in oligodendrocyte and myelin production, where it functions in a concerted manner with other pathways. Since androgen receptor (AR) plays a key role in establishing the sexual phenotype of myelin during development and is required for spontaneous myelin regeneration in the adult CNS, we hypothesized the existence of a possible coordination between Hedgehog and androgen signals in oligodendrocyte and myelin production. Here, we report complementary activities of both pathways during early postnatal oligodendrogenesis further revealing that persistent Hedgehog signaling activation impedes myelin production. The data also uncover prominent pro-myelinating activity of testosterone and involvement of AR in the control of neural stem cell commitment toward the oligodendroglial lineage. In the context of CNS demyelination, we provide evidence for the functional cooperation of the pathways leading to acceleration of myelin regeneration that might be related to their respective role on microglial and astroglial responses, higher preservation of axonal integrity, lower neuroinflammation, and functional improvement of animals in an immune model of CNS demyelination. Strong decreases of deleterious cytokines in the CNS (GM-CSF, TNF-α, IL-17A) and spleen (IL-2, IFN-γ) stand as unique features of the combined drugs while the potent therapeutic activity of testosterone on peripheral immune cells contributes to increase tolerogenic CD11c+ dendritic cells, reduce the clonal expansion of conventional CD4+ T cells and increase CD4+ Foxp3+ regulatory T cells. Altogether, these data might open promising perspectives for demyelinating diseases.
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Affiliation(s)
- Yousra Laouarem
- U1195 Inserm, University Paris-Saclay, Kremlin-Bicêtre, France
| | | | - Amina Zahaf
- U1195 Inserm, University Paris-Saclay, Kremlin-Bicêtre, France
| | | | - Amine Mellouk
- UMR996 Inserm, University Paris-Saclay, Clamart, France
| | - Pierre Bobé
- UMR996 Inserm, University Paris-Saclay, Clamart, France
| | - Claudia Mattern
- M et P Pharma AG, Emmetten, Switzerland.,Oceanographic Center, Nova Southeastern University, Fort Lauderdal, Florida, USA
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3
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Di Resta C, Pipitone GB, Carrera P, Ferrari M. Current scenario of the genetic testing for rare neurological disorders exploiting next generation sequencing. Neural Regen Res 2021; 16:475-481. [PMID: 32985468 PMCID: PMC7996035 DOI: 10.4103/1673-5374.293135] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Next generation sequencing is currently a cornerstone of genetic testing in routine diagnostics, allowing for the detection of sequence variants with so far unprecedented large scale, mainly in genetically heterogenous diseases, such as neurological disorders. It is a fast-moving field, where new wet enrichment protocols and bioinformatics tools are constantly being developed to overcome initial limitations. Despite the as yet undiscussed advantages, however, there are still some challenges in data analysis and the interpretation of variants. In this review, we address the current state of next generation sequencing diagnostic testing for inherited human disorders, particularly giving an overview of the available high-throughput sequencing approaches; including targeted, whole-exome and whole-genome sequencing; and discussing the main critical aspects of the bioinformatic process, from raw data analysis to molecular diagnosis.
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Affiliation(s)
- Chiara Di Resta
- Vita-Salute San Raffaele University; Unit of Genomics for Human Disease Diagnosis, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Paola Carrera
- Unit of Genomics for Human Disease Diagnosis, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute; Clinical Molecular Biology Laboratory, IRCCS San Raffaele Hospital, Milan, Italy
| | - Maurizio Ferrari
- Vita-Salute San Raffaele University; Unit of Genomics for Human Disease Diagnosis, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute; Clinical Molecular Biology Laboratory, IRCCS San Raffaele Hospital, Milan, Italy
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4
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Long Noncoding RNA SOX2-OT: Regulations, Functions, and Roles on Mental Illnesses, Cancers, and Diabetic Complications. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2901589. [PMID: 33294436 PMCID: PMC7718063 DOI: 10.1155/2020/2901589] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/09/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022]
Abstract
SRY-box transcription factor 2 (SOX2) overlapping transcript (SOX2-OT) is an evolutionarily conserved long noncoding RNA. Its intronic region contains the SOX2 gene, the major regulator of the pluripotency of embryonic stem cells. The human SOX2-OT gene comprises multiple exons and has multiple transcription start sites and generates hundreds of transcripts. Transcription factors (IRF4, AR, and SOX3), transcriptional inhibitors (NSPc1, MTA3, and YY1), and miRNAs (miR-211 and miR-375) have been demonstrated to control certain SOX2-OT transcript level at the transcriptional or posttranscriptional levels. Accumulated evidence indicates its crucial roles in the regulation of the SOX2 gene, miRNAs, and transcriptional process. Restricted expression of SOX2-OT transcripts in the brain results in the association between SOX2-OT single nucleotide polymorphisms and mental illnesses such as schizophrenia and anorexia nervosa. SOX2-OT is notably elevated in tumor tissues, and a high level of SOX2-OT is well correlated with poor clinical outcomes in cancer patients, leading to the establishment of its role as an oncogene and a prognostic or diagnostic biomarker for cancers. The emerging evidence supports that SOX2-OT mediates diabetic complications. In summary, SOX2-OT has diversified functions and could be a therapeutic target for various diseases.
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5
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Yin J, Shen Y, Si Y, Zhang Y, Du J, Hu X, Cai M, Bao H, Xing Y. Knockdown of long non-coding RNA SOX2OT downregulates SOX2 to improve hippocampal neurogenesis and cognitive function in a mouse model of sepsis-associated encephalopathy. J Neuroinflammation 2020; 17:320. [PMID: 33100215 PMCID: PMC7586681 DOI: 10.1186/s12974-020-01970-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 09/28/2020] [Indexed: 02/07/2023] Open
Abstract
Background Aberrant hippocampal neurogenesis is an important pathological feature of sepsis-associated encephalopathy. In the current study, we examined the potential role of the long noncoding RNA (lncRNA) sex-determining region Y-box 2 (SOX2) overlapping transcript (SOX2OT), a known regulator of adult neurogenesis in sepsis-induced deficits in hippocampal neurogenesis and cognitive function. Methods Sepsis was induced in adult C57BL/6 J male mice by cecal ligation and perforation (CLP) surgery. Randomly selected CLP mice were transfected with short interfering RNAs (siRNAs) against SOX2OT or SOX2, or with scrambled control siRNA. Cognitive behavior was tested 8–12 days post-surgery using a Morris water maze. Western blotting and RT-qPCR were used to determine expression of SOX2, Ki67, doublecortin (DCX), nestin, brain lipid-binding protein, and glial fibrillary acidic protein (GFAP) in the hippocampus. The number of bromodeoxyuridine (BrdU)+/DCX+ cells, BrdU+/neuronal nuclei (NeuN)+ neurons, and BrdU+/GFAP+ glial cells in the dentate gyrus were assessed by immunofluorescence. Results CLP mice showed progressive increases in SOX2OT and SOX2 mRNA levels on days 3, 7, and 14 after CLP surgery, accompanied by impaired cognitive function. Sepsis led to decrease in all neuronal markers in the hippocampus, except GFAP. Immunofluorescence confirmed the decreased numbers of BrdU+/DCX+ cells and BrdU+/NeuN+ neurons, and increased numbers of BrdU+/GFAP+ cells. SOX2OT knockdown partially inhibited the effects of CLP on levels of SOX2 and neuronal markers, neuronal populations in the hippocampus, and cognitive function. SOX2 deficiency recapitulated the effects of SOX2OT knockdown. Conclusion SOX2OT knockdown improves sepsis-induced deficits in hippocampal neurogenesis and cognitive function by downregulating SOX2 in mice. Inhibiting SOX2OT/SOX2 signaling may be effective for treating or preventing neurodegeneration in sepsis-associated encephalopathy.
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Affiliation(s)
- Jialin Yin
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Yanan Shen
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Yanna Si
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China.
| | - Yuan Zhang
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Jiayue Du
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Xiajuan Hu
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Mengmeng Cai
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Hongguang Bao
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, People's Republic of China
| | - Yan Xing
- Mechanical Engineering, Southeast University, Nanjing, 211118, People's Republic of China
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6
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La Rosa P, Bartoli G, Farioli Vecchioli S, Cesari E, Pagliarini V, Sette C. Androgen Receptor signaling promotes the neural progenitor cell pool in the developing cortex. J Neurochem 2020; 157:1153-1166. [PMID: 32959393 DOI: 10.1111/jnc.15192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/09/2020] [Accepted: 09/11/2020] [Indexed: 01/16/2023]
Abstract
Neural Progenitor Cells (NPCs) are multipotent cells that are able to self-renew and differentiate into neurons. The size of the initial pool of NPCs during the brain development strongly affects the number of neurons that compose cortical multi-layer during development. Gonadal hormones can influence the balance between self-renewal and differentiation processes. Herein, we investigated the role of dihydrotestosterone (DHT), the active metabolite of testosterone, in the regulation of NPC stemness and differentiation. First, we evaluated the expression of the androgen receptor (AR), the transcription factor activated by DHT that mediates the physiological effects of androgens, in NPCs. Western blot analysis showed that DHT-mediated activation of AR induces mitogenic signaling pathways (PI3K/AKT and MAPK/ERK) in NPCs, whereas luciferase activity assays demonstrated the induction of AR transcriptional activity. AR activation mediated by DHT treatment strongly increased the proliferation of NPCs and reduced their propensity to differentiate into neurons. Furthermore, the effects of AR activation were mediated, at least in part, by increased expression of Aldehyde Dehydrogenase 1 Family Member A3 enzyme (ALDH1A3). Pharmacological inhibition of ALDH activity with N,N-diethylaminobenzaldehyde (DEAB) reduced the effect of DHT on NPC proliferation in vitro. Furthermore, inhibition of AR activity by Enzalutamide reduced the NPC pool in the developing cortex of male C57/BL6 mouse embryos. These findings indicate that androgens engage an AR-dependent signaling pathway that impact on neurogenesis by increasing the NPC pool in the developing mouse cortex.
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Affiliation(s)
- Piergiorgio La Rosa
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.,Laboratory of Neuroembryology, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Giulia Bartoli
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | | | - Eleonora Cesari
- Department of Neuroscience, Section of Human Anatomy, Catholic University of the Sacred Heart, Rome, Italy.,IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Rome, Italy
| | - Vittoria Pagliarini
- Department of Neuroscience, Section of Human Anatomy, Catholic University of the Sacred Heart, Rome, Italy.,IRCCS Fondazione Policlinico Universitario Agostino Gemelli, Rome, Italy
| | - Claudio Sette
- Laboratory of Neuroembryology, IRCCS Fondazione Santa Lucia, Rome, Italy.,Department of Neuroscience, Section of Human Anatomy, Catholic University of the Sacred Heart, Rome, Italy
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7
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AR-induced long non-coding RNA LINC01503 facilitates proliferation and metastasis via the SFPQ-FOSL1 axis in nasopharyngeal carcinoma. Oncogene 2020; 39:5616-5632. [PMID: 32661324 PMCID: PMC7441053 DOI: 10.1038/s41388-020-01388-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/29/2020] [Accepted: 07/03/2020] [Indexed: 12/18/2022]
Abstract
Increasing evidence indicates that long non-coding RNAs (lncRNAs) play vital roles in the tumorigenesis and progression of cancers. However, the functions and regulatory mechanisms of lncRNAs in nasopharyngeal carcinoma (NPC) are still largely unknown. Our previous lncRNA expression profiles identified that LINC01503 was overexpressed in NPC. Here, we verified that LINC01503 was highly expressed in NPC and correlated with poor prognosis. LINC01503 promoted NPC cell proliferation, migration, and invasion in vitro, and facilitated tumor growth and metastasis in vivo. Mechanistically, LINC01503 recruited splicing factor proline-and glutamine-rich (SFPQ) to activate Fos like 1 (FOSL1) transcription, and ectopic expression of FOSL1 reversed the suppressive effect of LINC01503 knockdown on NPC progression. Moreover, androgen receptor (AR)-mediated transcription activation was responsible for the overexpression of LINC01503, and AR ligand-dependent cell growth, migration, and invasion in NPC cells. Taken together, our findings reveal that AR-induced LINC01503 can promote NPC progression through the SFPQ-FOSL1 axis, which represents a novel prognostic biomarker and therapeutic target for NPC patients.
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8
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Zhao Y, Liu H, Zhang Q, Zhang Y. The functions of long non-coding RNAs in neural stem cell proliferation and differentiation. Cell Biosci 2020; 10:74. [PMID: 32514332 PMCID: PMC7260844 DOI: 10.1186/s13578-020-00435-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/23/2020] [Indexed: 02/06/2023] Open
Abstract
The capacities for neural stem cells (NSCs) self-renewal with differentiation are need to be precisely regulated for ensuring brain development and homeostasis. Recently, increasing number of studies have highlighted that long non-coding RNAs (lncRNAs) are associated with NSC fate determination during brain development stages. LncRNAs are a class of non-coding RNAs more than 200 nucleotides without protein-coding potential and function as novel critical regulators in multiple biological processes. However, the correlation between lncRNAs and NSC fate decision still need to be explored in-depth. In this review, we will summarize the roles and molecular mechanisms of lncRNAs focusing on NSCs self-renewal, neurogenesis and gliogenesis over the course of neural development, still more, dysregulation of lncRNAs in all stage of neural development have closely relationship with development disorders or glioma. In brief, lncRNAs may be explored as effective modulators in NSCs related neural development and novel biomarkers for diagnosis and prognosis of neurological disorders in the future.
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Affiliation(s)
- Yanfang Zhao
- Institute of Biomedical Research, Shandong Provincial Research Center for Bioinformatic Engineering and Technique, Zibo Key Laboratory of New Drug Development of Neurodegenerative Diseases, School for Life Science, Shandong University of Technology, Zibo, China
| | - Hongliang Liu
- Institute of Biomedical Research, Shandong Provincial Research Center for Bioinformatic Engineering and Technique, Zibo Key Laboratory of New Drug Development of Neurodegenerative Diseases, School for Life Science, Shandong University of Technology, Zibo, China
| | - Qili Zhang
- Institute of Biomedical Research, Shandong Provincial Research Center for Bioinformatic Engineering and Technique, Zibo Key Laboratory of New Drug Development of Neurodegenerative Diseases, School for Life Science, Shandong University of Technology, Zibo, China
| | - Yuan Zhang
- Institute for Translational Medicine, Qingdao University, Qingdao, China
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9
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Di Resta C, Ferrari M. Genetic testing in neurology exploiting next generation sequencing: state of art. Neural Regen Res 2020; 15:265-266. [PMID: 31552897 PMCID: PMC6905334 DOI: 10.4103/1673-5374.265554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 07/18/2019] [Indexed: 12/05/2022] Open
Affiliation(s)
- Chiara Di Resta
- Vita-Salute San Raffaele University, Milan, Italy
- Unit of Genomics for Human Disease Diagnosis, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maurizio Ferrari
- Vita-Salute San Raffaele University, Milan, Italy
- Unit of Genomics for Human Disease Diagnosis, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Clinical Molecular Biology Laboratory, IRCCS San Raffaele Hospital, Milan, Italy
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10
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Du L, Wang L, Gan J, Yao Z, Lin W, Li J, Guo Y, Chen Y, Zhou F, Jim Yeung SC, Coppes RP, Zhang D, Zhang H. MTA3 Represses Cancer Stemness by Targeting the SOX2OT/SOX2 Axis. iScience 2019; 22:353-368. [PMID: 31810000 PMCID: PMC6909183 DOI: 10.1016/j.isci.2019.11.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/05/2019] [Accepted: 11/05/2019] [Indexed: 02/05/2023] Open
Abstract
Cancer cell stemness (CCS) plays critical roles in both malignancy maintenance and metastasis, yet the underlying molecular mechanisms are far from complete. Although the importance of SOX2 in cancer development and CCS are well recognized, the role of MTA3 in these processes is unknown. In this study, we used esophageal squamous cell carcinoma (ESCC) as a model system to demonstrate that MTA3 can repress both CCS and metastasis in vitro and in vivo. Mechanistically, by forming a repressive complex with GATA3, MTA3 downregulates SOX2OT, subsequently suppresses the SOX2OT/SOX2 axis, and ultimately represses CCS and metastasis. More importantly, MTA3low/SOX2high is associated with poor prognosis and could serve as an independent prognostic factor. These findings altogether indicate that MTA3/SOX2OT/SOX2 axis plays an indispensable role in CCS. Therefore, this axis could be potentially used in cancer stratification and serves as a therapeutic target.
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Affiliation(s)
- Liang Du
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China; Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China; Cancer Research Center, Shantou University Medical College, Shantou, Guangdong 515041, China; Department of Biomedical Sciences of Cells & Systems, Section Molecular Cell Biology and Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen 9700 AD, the Netherlands
| | - Lu Wang
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China; Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China
| | - Jinfeng Gan
- Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China; Cancer Research Center, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Zhimeng Yao
- Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China; Cancer Research Center, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Wan Lin
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Junkuo Li
- The Fourth Affiliated Hospital of Henan University of Science and Technology, Anyang, Henan 455001, China; Department of Thoracic Surgery, Anyang Tumor Hospital, Anyang, Henan 455001, China
| | - Yi Guo
- Endoscopy Center, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Yuping Chen
- Department of Thoracic Surgery, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Fuyou Zhou
- The Fourth Affiliated Hospital of Henan University of Science and Technology, Anyang, Henan 455001, China; Department of Thoracic Surgery, Anyang Tumor Hospital, Anyang, Henan 455001, China.
| | - Sai-Ching Jim Yeung
- Department of Emergency Medicine, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Robert P Coppes
- Department of Biomedical Sciences of Cells & Systems, Section Molecular Cell Biology and Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen 9700 AD, the Netherlands
| | - Dianzheng Zhang
- Department of Bio-Medical Sciences, Philadelphia College of Osteopathic Medicine, 4170 City Avenue, Philadelphia, PA 19131, USA; Key Laboratory of Epigenetics and Oncology, Research Center for Preclinical Medicine, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Hao Zhang
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China; Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China; Research Centre of Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515063, China.
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11
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Chen M, Guan Y, Li A, Zhao YZ, Zhang L, Zhang L, Gong Y. LncRNA SOX2OT Mediates Mitochondrial Dysfunction in Septic Cardiomyopathy. DNA Cell Biol 2019; 38:1197-1206. [PMID: 31618067 DOI: 10.1089/dna.2019.4839] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Researches establish an indispensable role of mitochondrial dysfunction in septic cardiomyopathy. We aimed to investigate the effects of long noncoding RNA (LncRNA) SOX2 overlapping transcript (SOX2OT) on mitochondrial dysfunction in septic cardiomyopathy. We observed an obvious overexpression of SOX2OT in septic hearts and cardiomyocytes. Knockdown of SOX2OT in mice recovered the reduced cardiac function, and improved the mitochondrial membrane potential impaired by lipopolysaccharide (LPS). SOX2OT overexpressed mice showed the opposite situation. In parallel, knockdown of SOX2OT in cardiomyocytes restored the mitochondrial membrane potential, along with reduced mitochondrial reactive oxygen species production induced by LPS, while overexpression of SOX2OT reversed these effects. Mechanistically, SOX2OT could regulate mitochondrial dysfunction in septic cardiomyopathy via SOX2. In general, SOX2OT contributed to mitochondrial dysfunction progression via inhibiting SOX2 expression in septic cardiomyopathy, which may provide a new insight for treatment of septic cardiomyopathy.
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Affiliation(s)
- Mengfei Chen
- Department of Emergency, People's Hospital of Ningxia Hui Autonomous Region (The First Affiliated Hospital of Northwest Minzu University), Ningxia, China
| | - Yan Guan
- Department of Emergency, People's Hospital of Ningxia Hui Autonomous Region (The First Affiliated Hospital of Northwest Minzu University), Ningxia, China
| | - Ao Li
- Medical College of Northwest Minzu University, Lanzhou, China
| | - Ying-Zhu Zhao
- People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi, China
| | - Ling Zhang
- Department of Emergency, People's Hospital of Ningxia Hui Autonomous Region (The First Affiliated Hospital of Northwest Minzu University), Ningxia, China
| | - Liang Zhang
- Department of Emergency, People's Hospital of Ningxia Hui Autonomous Region (The First Affiliated Hospital of Northwest Minzu University), Ningxia, China
| | - Yanxuan Gong
- Department of Geratology, Lanzhou University, Lanzhou, China.,Department of Geratology, Gansu Second Provincial Hospital, Lanzhou, China.,Xi'An International University, Xi'An, China
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12
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Wang Z, Li J, Wu Y, Wang H. Combined identification of LncRNA CCAT1 and SOX2OT in serum as an effective screening for non-small cell lung cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2019; 12:3975-3981. [PMID: 31933793 PMCID: PMC6949749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 09/24/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) CCAT1 and SOX2OT have been shown to play important regulatory roles in cancer biology. Tumor biomarkers need to be detectable in easily accessible body fluids, should be characterized by high specificity, sufficient sensitivity, and robustness against influencing factors. The aim of this study is to evaluate the clinical significance of serum CCAT1 and SOX2OT as a biomarker in the screening of NSCLC. RESULTS CCAT1 and SOX2OT were shown to be detectable in the cellular fraction of peripheral human blood, showing serum levels of CCAT1 and SOX2OT were significantly increased of cancer patients as compared to cancer-free controls. The ROC curves illustrated strong separation between the NSCLC patients and control group, with an AUC of 0.846 (95% CI 0.766-0.926; P < 0.001) for CCAT1 and 0.787 (95% CI: 0.691-0.883; P < 0.001) for SOX2OT. However, the combination of SOX2OT and CCAT1 yielded an AUC of 0.894 (95% CI: 0.825-0.963; P < 0.001), which was significantly improved as compared to CCAT1 or SOX2OT alone. Moreover, the interaction between lncRNAs and some functional proteins, such as TTF1, p63, Ck7, K-ras, EGFR, may contribute to the tumorigenesis. CONCLUSION Our results demonstrated that increased serum CCAT1 and SOX2OT could be used as a predictive biomarker for NSCLC screening, and that combination of CCAT1 and SOX2OT had a higher positive diagnostic efficiency of NSCLC than CCAT1 or SOX2OT alone.
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Affiliation(s)
- Zhipeng Wang
- School of Medicine, Jiangsu UniversityJiangsu, China
- Department of Pulmonary Medicine, Affiliated Hospital of Jiangsu UniversityJiangsu, China
| | - Jian Li
- School of Medicine, Jiangsu UniversityJiangsu, China
- Department of Pulmonary Medicine, Affiliated Hospital of Jiangsu UniversityJiangsu, China
| | - Yan Wu
- College of Marine Life and Fisheries, Jiangsu Ocean UniversityJiangsu, China
| | - Hongbin Wang
- College of Marine Life and Fisheries, Jiangsu Ocean UniversityJiangsu, China
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Duran RCD, Wei H, Kim DH, Wu JQ. Invited Review: Long non-coding RNAs: important regulators in the development, function and disorders of the central nervous system. Neuropathol Appl Neurobiol 2019; 45:538-556. [PMID: 30636336 PMCID: PMC6626588 DOI: 10.1111/nan.12541] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 12/19/2018] [Indexed: 02/06/2023]
Abstract
Genome-wide transcriptional studies have demonstrated that tens of thousands of long non-coding RNAs (lncRNA) genes are expressed in the central nervous system (CNS) and that they exhibit tissue- and cell-type specificity. Their regulated and dynamic expression and their co-expression with protein-coding gene neighbours have led to the study of the functions of lncRNAs in CNS development and disorders. In this review, we describe the general characteristics, localization and classification of lncRNAs. We also elucidate the examples of the molecular mechanisms of nuclear and cytoplasmic lncRNA actions in the CNS and discuss common experimental approaches used to identify and unveil the functions of lncRNAs. Additionally, we provide examples of lncRNA studies of cell differentiation and CNS disorders including CNS injuries and neurodegenerative diseases. Finally, we review novel lncRNA-based therapies. Overall, this review highlights the important biological roles of lncRNAs in CNS functions and disorders.
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Affiliation(s)
- Raquel Cuevas-Diaz Duran
- The Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Center for Stem Cell and Regenerative Medicine, UT Brown Foundation Institute of Molecular Medicine, Houston, TX 77030, USA
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave. Morones Prieto 3000, Monterrey, N.L., 64710, Mexico
| | - Haichao Wei
- The Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Center for Stem Cell and Regenerative Medicine, UT Brown Foundation Institute of Molecular Medicine, Houston, TX 77030, USA
| | - Dong H. Kim
- The Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Jia Qian Wu
- The Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Center for Stem Cell and Regenerative Medicine, UT Brown Foundation Institute of Molecular Medicine, Houston, TX 77030, USA
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Klocke C, Sherina V, Graham UM, Gunderson J, Allen JL, Sobolewski M, Blum JL, Zelikoff JT, Cory-Slechta DA. Enhanced cerebellar myelination with concomitant iron elevation and ultrastructural irregularities following prenatal exposure to ambient particulate matter in the mouse. Inhal Toxicol 2018; 30:381-396. [PMID: 30572762 DOI: 10.1080/08958378.2018.1533053] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Accumulating evidence indicates the developing central nervous system (CNS) is a target of air pollution toxicity. Epidemiological reports increasingly demonstrate that exposure to the particulate matter (PM) fraction of air pollution during neurodevelopment is associated with an increased risk of neurodevelopmental disorders (NDDs) such as autism spectrum disorder (ASD). These observations are supported by animal studies demonstrating prenatal exposure to concentrated ambient PM induces neuropathologies characteristic of ASD, including ventriculomegaly and aberrant corpus callosum (CC) myelination. Given the role of the CC and cerebellum in ASD etiology, this study tested whether prenatal exposure to concentrated ambient particles (CAPs) produced pathological features in offspring CC and cerebella consistent with ASD. Analysis of cerebellar myelin density revealed male-specific hypermyelination in CAPs-exposed offspring at postnatal days (PNDs) 11-15 without alteration of cerebellar area. Atomic absorption spectroscopy (AAS) revealed elevated iron (Fe) in the cerebellum of CAPs-exposed female offspring at PNDs 11-15, which connects with previously observed elevated Fe in the female CC. The presence of Fe inclusions, along with aluminum (Al) and silicon (Si) inclusions, were confirmed at nanoscale resolution in the CC along with ultrastructural myelin sheath damage. Furthermore, RNAseq and gene ontology (GO) enrichment analyses revealed cerebellar gene expression was significantly affected by sex and prenatal CAPs exposure with significant enrichment in inflammation and transmembrane transport processes that could underlie observed myelin and metal pathologies. Overall, this study highlights the ability of PM exposure to disrupt myelinogenesis and elucidates novel molecular targets of PM-induced developmental neurotoxicity.
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Affiliation(s)
- Carolyn Klocke
- a Department of Environmental Medicine , University of Rochester School of Medicine , Rochester , NY , USA
| | - Valeriia Sherina
- b Department of Biostatistics and Computational Biology , University of Rochester School of Medicine , Rochester , NY , USA
| | - Uschi M Graham
- c Department of Pharmaceutical Sciences , University of Kentucky , Lexington , KY , USA
| | - Jakob Gunderson
- a Department of Environmental Medicine , University of Rochester School of Medicine , Rochester , NY , USA
| | - Joshua L Allen
- a Department of Environmental Medicine , University of Rochester School of Medicine , Rochester , NY , USA
| | - Marissa Sobolewski
- a Department of Environmental Medicine , University of Rochester School of Medicine , Rochester , NY , USA
| | - Jason L Blum
- d Department of Environmental Medicine , New York University School of Medicine , Tuxedo , NY , USA
| | - Judith T Zelikoff
- d Department of Environmental Medicine , New York University School of Medicine , Tuxedo , NY , USA
| | - Deborah A Cory-Slechta
- a Department of Environmental Medicine , University of Rochester School of Medicine , Rochester , NY , USA
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15
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Sun M, Geng D, Li S, Chen Z, Zhao W. LncRNA PART1 modulates toll-like receptor pathways to influence cell proliferation and apoptosis in prostate cancer cells. Biol Chem 2018; 399:387-395. [PMID: 29261512 DOI: 10.1515/hsz-2017-0255] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 12/01/2017] [Indexed: 01/09/2023]
Abstract
We investigated thoroughly the effect of lncRNA PART1 on prostate cancer cells proliferation and apoptosis, through regulating toll-like receptor (TLR) pathways. LncRNA PART1 expression was also examined by quantitative real-time polymerase chain reactions (qRT-PCR) in human tissues and the cells lines LNCaP and PC3. After transfection with si-PART1 or control constructs, the cell viability was measured by MTS and colony formation assays. In addition, the apoptosis rate of the prostate cancer cells was validated by TUNEL staining. Relationships between lncRNA PART1 expression and TLR pathway genes were demonstrated by qRT-PCR and Western blotting. High levels of lncRNA PART1 expression were correlated with advanced cancer stage and predication of poor survival. LncRNA PART1 levels was increased in PCa cells treated with 5α-dihydrotestosterone (DHT), confirming PART1 was directly induced by androgen. Moreover, down-regulation of lncRNA PART1 inhibited prostate cancer cell proliferation and accelerated cell apoptosis. In addition, lncRNA PART1 induced downstream genes expression in TLR pathways including TLR3, TNFSF10 and CXCL13 to further influence prostate cancer cells, indicating its carcinogenesis on prostate cancer. LncRNA PART1 promoted cell proliferation ability and apoptosis via the inhibition of TLR pathways in prostate cancer. LncRNA PART1 could hence be considered as a new target in the treatment of prostate cancer.
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Affiliation(s)
- Ming Sun
- Department of Urology, China Medical University Affiliated Shengjing Hospital, Shenyang 110004, Liaoning, China
| | - Donghua Geng
- Department of General Surgery, China Medical University Affiliated Shengjing Hospital, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China
| | - Shuqiang Li
- Department of General Surgery, China Medical University Affiliated Shengjing Hospital, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China
| | - Zhaofu Chen
- Department of Urology, China Medical University Affiliated Shengjing Hospital, Shenyang 110004, Liaoning, China
| | - Wenyan Zhao
- Department of General Surgery, China Medical University Affiliated Shengjing Hospital, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China
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Qu F, Cao P. Long noncoding RNA SOX2OT contributes to gastric cancer progression by sponging miR-194-5p from AKT2. Exp Cell Res 2018; 369:187-196. [DOI: 10.1016/j.yexcr.2018.05.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 05/11/2018] [Accepted: 05/17/2018] [Indexed: 12/12/2022]
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17
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Huang Q, Liu Y, Dong S. Emerging roles of long non-coding RNAs in the toxicology of environmental chemicals. J Appl Toxicol 2018; 38:934-943. [PMID: 29388697 DOI: 10.1002/jat.3595] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/27/2017] [Accepted: 12/27/2017] [Indexed: 12/12/2022]
Abstract
Environmental chemicals (ECs) are drawing great attention to their effects on health and their toxicological mechanisms are being investigated. Long non-coding RNA (lncRNA) is a class of RNA with more than 200 nucleotides and does not have protein coding potential. Recently, it is emerging as a star molecule that participates in a wide range of physiological and pathological processes. It has been reported to be abnormally expressed in diseases. As an epigenetic factor, lncRNAs play an important role in the response of organisms to environmental stress. Their roles in the toxicity of ECs are being identified. Altered expression profiles of lncRNAs have been explored after exposure to ECs. Various kinds of ECs are reported to disturb the expression of lncRNAs in vitro and in vivo. Then, dysregulated lncRNAs can affect the expression of target genes directly or indirectly via regulating the level of microRNAs. The network among lncRNAs, microRNAs and mRNAs can initiate or impede specific signaling pathway and lead to adverse outcome upon exposure to ECs. Recovery of the lncRNAs level by overexpression or knockdown technology diminished the effect induced by ECs. In the review, biological roles of lncRNAs are depicted. The lncRNAs involved in the toxicology are summarized. Types of ECs that have been reported to affect the expression of lncRNAs are categorized. The interaction between various types of ECs and lncRNAs is discussed.
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Affiliation(s)
- Qiansheng Huang
- Chinese Academy of Sciences, Key Lab of Urban Environment and Health, Institute of Urban Environment, Xiamen, 361021, People's Republic of China
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, People's Republic of China
| | - Yiyao Liu
- Chinese Academy of Sciences, Key Lab of Urban Environment and Health, Institute of Urban Environment, Xiamen, 361021, People's Republic of China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Sijun Dong
- Chinese Academy of Sciences, Key Lab of Urban Environment and Health, Institute of Urban Environment, Xiamen, 361021, People's Republic of China
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, People's Republic of China
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18
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Messemaker TC, van Leeuwen SM, van den Berg PR, 't Jong AEJ, Palstra RJ, Hoeben RC, Semrau S, Mikkers HMM. Allele-specific repression of Sox2 through the long non-coding RNA Sox2ot. Sci Rep 2018; 8:386. [PMID: 29321583 PMCID: PMC5762901 DOI: 10.1038/s41598-017-18649-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 12/14/2017] [Indexed: 12/21/2022] Open
Abstract
The transcription factor Sox2 controls the fate of pluripotent stem cells and neural stem cells. This gatekeeper function requires well-regulated Sox2 levels. We postulated that Sox2 regulation is partially controlled by the Sox2 overlapping long non-coding RNA (lncRNA) gene Sox2ot. Here we show that the RNA levels of Sox2ot and Sox2 are inversely correlated during neural differentiation of mouse embryonic stem cells (ESCs). Through allele-specific enhanced transcription of Sox2ot in mouse Sox2eGFP knockin ESCs we demonstrate that increased Sox2ot transcriptional activity reduces Sox2 RNA levels in an allele-specific manner. Enhanced Sox2ot transcription, yielding lower Sox2 RNA levels, correlates with a decreased chromatin interaction of the upstream regulatory sequence of Sox2 and the ESC-specific Sox2 super enhancer. Our study indicates that, in addition to previously reported in trans mechanisms, Sox2ot can regulate Sox2 by an allele-specific mechanism, in particular during development.
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Affiliation(s)
- Tobias C Messemaker
- Department of Molecular Cell Biology, Leiden University Medical Center, PO Box 9600, 2300RC, Leiden, The Netherlands.,Department of Rheumatology, Leiden University Medical Center, PO Box 9600, 2300RC, Leiden, The Netherlands
| | - Selina M van Leeuwen
- Department of Molecular Cell Biology, Leiden University Medical Center, PO Box 9600, 2300RC, Leiden, The Netherlands
| | | | - Anke E J 't Jong
- Department of Molecular Cell Biology, Leiden University Medical Center, PO Box 9600, 2300RC, Leiden, The Netherlands
| | - Robert-Jan Palstra
- Department of Biochemistry, Erasmus University Medical Center, Ee634, 3000CA, Rotterdam, The Netherlands
| | - Rob C Hoeben
- Department of Molecular Cell Biology, Leiden University Medical Center, PO Box 9600, 2300RC, Leiden, The Netherlands
| | - Stefan Semrau
- Leiden Institute of Physics, Leiden University, 2333 RA, Leiden, The Netherlands
| | - Harald M M Mikkers
- Department of Molecular Cell Biology, Leiden University Medical Center, PO Box 9600, 2300RC, Leiden, The Netherlands.
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