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Narsale A, Almanza F, Tran T, Lam B, Seo D, Vu A, Long SA, Cooney L, Serti E, Davies JD. Th2 cell clonal expansion at diagnosis in human type 1 diabetes. Clin Immunol 2023; 257:109829. [PMID: 37907122 DOI: 10.1016/j.clim.2023.109829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/02/2023]
Abstract
Soon after diagnosis with type 1 diabetes (T1D), many patients experience a period of partial remission. A longer partial remission is associated with a better response to treatment, but the mechanism is not known. The frequency of CD4+CD25+CD127hi (127-hi) cells, a cell subset with an anti-inflammatory Th2 bias, correlates positively with length of partial remission. The purpose of this study was to further characterize the nature of the Th2 bias in 127-hi cells. Single cell RNA sequencing paired with TCR sequencing of sorted 127-hi memory cells identifies clonally expanded Th2 clusters in 127-hi cells from T1D, but not from healthy donors. The Th2 clusters express GATA3, GATA3-AS1, PTGDR2, IL17RB, IL4R and IL9R. The existence of 127-hi Th2 cell clonal expansion in T1D suggests that disease factors may induce clonal expansion of 127-hi Th2 cells that prolong partial remission and delay disease progression.
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Affiliation(s)
- Aditi Narsale
- San Diego Biomedical Research Institute, 3525 John Hopkins Court, San Diego, CA 92121, USA.
| | - Francisco Almanza
- San Diego Biomedical Research Institute, 3525 John Hopkins Court, San Diego, CA 92121, USA.
| | - Theo Tran
- San Diego Biomedical Research Institute, 3525 John Hopkins Court, San Diego, CA 92121, USA
| | - Breanna Lam
- San Diego Biomedical Research Institute, 3525 John Hopkins Court, San Diego, CA 92121, USA.
| | - David Seo
- San Diego Biomedical Research Institute, 3525 John Hopkins Court, San Diego, CA 92121, USA
| | - Alisa Vu
- San Diego Biomedical Research Institute, 3525 John Hopkins Court, San Diego, CA 92121, USA.
| | - S Alice Long
- Benaroya Research Institute, 1201 9(th) Ave, Seattle, WA 98101, USA.
| | | | | | - Joanna D Davies
- San Diego Biomedical Research Institute, 3525 John Hopkins Court, San Diego, CA 92121, USA.
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2
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Li T, Zhang G, Zhang X, Lin H, Liu Q. The 8p11 myeloproliferative syndrome: Genotypic and phenotypic classification and targeted therapy. Front Oncol 2022; 12:1015792. [PMID: 36408177 PMCID: PMC9669583 DOI: 10.3389/fonc.2022.1015792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/10/2022] [Indexed: 10/05/2023] Open
Abstract
EMS(8p11 myeloproliferative syndrome, EMS) is an aggressive hematological neoplasm with/without eosinophilia caused by a rearrangement of the FGFR1 gene at 8p11-12. It was found that all cases carry chromosome abnormalities at the molecular level, not only the previously reported chromosome translocation and insertion but also a chromosome inversion. These abnormalities produced 17 FGFR1 fusion genes, of which the most common partner genes are ZNF198 on 13q11-12 and BCR of 22q11.2. The clinical manifestations can develop into AML (acute myeloid leukemia), T-LBL (T-cell lymphoblastic lymphoma), CML (chronic myeloid leukemia), CMML (chronic monomyelocytic leukemia), or mixed phenotype acute leukemia (MPAL). Most patients are resistant to traditional chemotherapy, and a minority of patients achieve long-term clinical remission after stem cell transplantation. Recently, the therapeutic effect of targeted tyrosine kinase inhibitors (such as pemigatinib and infigratinib) in 8p11 has been confirmed in vitro and clinical trials. The TKIs may become an 8p11 treatment option as an alternative to hematopoietic stem cell transplantation, which is worthy of further study.
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Affiliation(s)
- Taotao Li
- Department of Hematology, The First Hospital of Jilin University, Changchun, China
| | - Gaoling Zhang
- Department of Hematology, The First Hospital of Jilin University, Changchun, China
| | - Xiaoling Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
- National-Local Joint Engineering Laboratory of Animal Models for Human Disease, First Hospital, Jilin University, Changchun, China
| | - Hai Lin
- Department of Hematology, The First Hospital of Jilin University, Changchun, China
| | - Qiuju Liu
- Department of Hematology, The First Hospital of Jilin University, Changchun, China
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3
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Suzuki S, Yuan H, Hirata-Tsuchiya S, Yoshida K, Sato A, Nemoto E, Shiba H, Yamada S. DMP-1 promoter-associated antisense strand non-coding RNA, panRNA-DMP-1, physically associates with EGFR to repress EGF-induced squamous cell carcinoma migration. Mol Cell Biochem 2021; 476:1673-1690. [PMID: 33420898 DOI: 10.1007/s11010-020-04046-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/26/2020] [Indexed: 02/06/2023]
Abstract
Accumulating evidence suggests that specific non-coding RNAs exist in many types of malignant tissues, and are involved in cancer invasion and metastasis. However, little is known about the precise roles of non-coding RNAs in squamous cell carcinoma (SQCC) invasion and migration. Recently, the dentin matrix protein-1 (DMP-1) gene locus was identified as a transcriptionally active site in squamous cell carcinoma (SQCC) tissue and cells. However, it is unclear whether RNA associated with cell migration exist at the DMP-1 gene locus in SQCC cells. We identified a novel promoter-associated non-coding RNA in the antisense strand of DMP-1 gene locus, promoter-associated non-coding RNA (panRNA)-DMP-1, by the RACE method in SQCC cells and tissues, and characterized the functions of panRNA-DMP-1 in EGF-driven SQCC cell migration. The inhibition of endogenous panRNA-DMP-1 expression by specific siRNAs and exogenous over-expression of panRNA-DMP-1 resulted in increased and suppressed cellular migration toward EGF in SQCC cells, respectively, and nuclear expression of panRNA-DMP-1 was induced by EGF stimulation. Mechanistically, suppression of panRNA-DMP-1 expression increased EGFR nuclear localization upon EGF treatment and nuclear panRNA-DMP-1 physically interacted with EGFR, which was confirmed by RNA immunoprecipitation assay using a bacteriophage-delivered PP7 RNA labeling system. Furthermore, co-immunoprecipitation assay revealed that suppression of panRNA-DMP-1 stabilized EGFR interaction with STAT3, a known co-transcription factors of EGFR, to induce migratory properties in many cancer cells. Based on these findings, panRNA-DMP-1 is an EGFR-associating RNA that inhibits the EGF-induced migratory properties of SQCC possibly by regulating EGFR nuclear localization and EGFR binding to STAT3.
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Affiliation(s)
- Shigeki Suzuki
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan.
- Department of Biological Endodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan.
| | - Hang Yuan
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Shizu Hirata-Tsuchiya
- Department of Biological Endodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - Kazuma Yoshida
- Department of Biological Endodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - Akiko Sato
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Eiji Nemoto
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Hideki Shiba
- Department of Biological Endodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - Satoru Yamada
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
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Das S, Zhang E, Senapati P, Amaram V, Reddy MA, Stapleton K, Leung A, Lanting L, Wang M, Chen Z, Kato M, Oh HJ, Guo Q, Zhang X, Zhang B, Zhang H, Zhao Q, Wang W, Wu Y, Natarajan R. A Novel Angiotensin II-Induced Long Noncoding RNA Giver Regulates Oxidative Stress, Inflammation, and Proliferation in Vascular Smooth Muscle Cells. Circ Res 2019; 123:1298-1312. [PMID: 30566058 DOI: 10.1161/circresaha.118.313207] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
RATIONALE AngII (angiotensin II)-mediated vascular smooth muscle cell (VSMC) dysfunction plays a major role in hypertension. Long noncoding RNAs have elicited much interest, but their molecular roles in AngII actions and hypertension are unclear. OBJECTIVE To investigate the regulation and functions of a novel long noncoding RNA growth factor- and proinflammatory cytokine-induced vascular cell-expressed RNA ( Giver), in AngII-mediated VSMC dysfunction. METHODS AND RESULTS RNA-sequencing and real-time quantitative polymerase chain reactions revealed that treatment of rat VSMC with AngII increased the expression of Giver and Nr4a3, an adjacent gene encoding a nuclear receptor. Similar changes were observed in rat and mouse aortas treated ex vivo with AngII. RNA-FISH (fluorescence in situ hybridization) and subcellular fractionation showed predominantly nuclear localization of Giver. AngII increased Giver expression via recruitment of Nr4a3 to Giver promoter. Microarray profiling and real-time quantitative polymerase chain reaction validation in VSMC showed that Giver knockdown attenuated the expression of genes involved in oxidative stress ( Nox1) and inflammation ( Il6, Ccl2, Tnf) but increased Nr4a3. Conversely, endogenous Giver overexpression showed opposite effects supporting its role in oxidative stress and inflammation. Chromatin immunoprecipitation assays showed Giver overexpression also increased Pol II (RNA polymerase II) enrichment and decreased repressive histone modification histone H3 trimethylation on lysine 27 at Nox1 and inflammatory gene promoters. Accordingly, Giver knockdown inhibited AngII-induced oxidative stress and proliferation in rat VSMC. RNA-pulldown combined with mass spectrometry showed Giver interacts with nuclear and chromatin remodeling proteins and corepressors, including NONO (non-pou domain-containing octamer-binding protein). Moreover, NONO knockdown elicited similar effects as Giver knockdown on the expression of key Giver-regulated genes. Notably, GIVER and NR4A3 were increased in AngII-treated human VSMC and in arteries from hypertensive patients but attenuated in hypertensive patients treated with ACE (angiotensin-converting enzyme) inhibitors or angiotensin receptor blockers. Furthermore, human GIVER also exhibits partial functional conservation with rat Giver. CONCLUSIONS Giver and its regulator Nr4a3 are important players in AngII-mediated VSMC dysfunction and could be novel targets for antihypertensive therapy.
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Affiliation(s)
- Sadhan Das
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Erli Zhang
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA.,Department of Cardiology (E.Z., Q.G., X.Z., B.Z., H.Z., Q.Z., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Center for Structural Heart Diseases (E.Z., W.W., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Parijat Senapati
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Vishnu Amaram
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA.,Irell and Manella Graduate School of Biological Sciences (V.A., K.S., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Marpadga A Reddy
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Kenneth Stapleton
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA.,Irell and Manella Graduate School of Biological Sciences (V.A., K.S., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Amy Leung
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Linda Lanting
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Mei Wang
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Zhuo Chen
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Mitsuo Kato
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Hyung Jung Oh
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
| | - Qianyun Guo
- Department of Cardiology (E.Z., Q.G., X.Z., B.Z., H.Z., Q.Z., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xinyue Zhang
- Department of Cardiology (E.Z., Q.G., X.Z., B.Z., H.Z., Q.Z., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bin Zhang
- Department of Cardiology (E.Z., Q.G., X.Z., B.Z., H.Z., Q.Z., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haitong Zhang
- Department of Cardiology (E.Z., Q.G., X.Z., B.Z., H.Z., Q.Z., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qinghao Zhao
- Department of Cardiology (E.Z., Q.G., X.Z., B.Z., H.Z., Q.Z., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Wang
- Center for Structural Heart Diseases (E.Z., W.W., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yongjian Wu
- Department of Cardiology (E.Z., Q.G., X.Z., B.Z., H.Z., Q.Z., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Center for Structural Heart Diseases (E.Z., W.W., Y.W.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Rama Natarajan
- From the Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute (S.D., E.Z., P.S., V.A., M.A.R., K.S., A.L., L.L., M.W., Z.C., M.K., H.J.O., R.N.), Beckman Research Institute of City of Hope, Duarte, CA.,Irell and Manella Graduate School of Biological Sciences (V.A., K.S., R.N.), Beckman Research Institute of City of Hope, Duarte, CA
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5
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Effects of annexin A7 inhibitor-ABO on the expression and distribution of long noncoding RNA-CERNA1 in vascular endothelial cells apoptosis. Apoptosis 2019; 24:552-561. [DOI: 10.1007/s10495-019-01537-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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6
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Takimoto M. Multidisciplinary Roles of LRRFIP1/GCF2 in Human Biological Systems and Diseases. Cells 2019; 8:cells8020108. [PMID: 30709060 PMCID: PMC6406849 DOI: 10.3390/cells8020108] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/21/2019] [Accepted: 01/27/2019] [Indexed: 01/28/2023] Open
Abstract
Leucine Rich Repeat of Flightless-1 Interacting Protein 1/GC-binding factor 2 (LRRFIP1/GCF2) cDNA was cloned for a transcriptional repressor GCF2, which bound sequence-specifically to a GC-rich element of epidermal growth factor receptor (EGFR) gene and repressed its promotor. LRRFIP1/GCF2 was also cloned as a double stranded RNA (dsRNA)-binding protein to trans-activation responsive region (TAR) RNA of Human Immunodeficiency Virus-1 (HIV-1), termed as TAR RNA interacting protein (TRIP), and as a binding protein to the Leucine Rich Repeat (LRR) of Flightless-1(Fli-1), termed as Flightless-1 LRR associated protein 1 (FLAP1) and LRR domain of Flightless-1 interacting Protein 1 (LRRFIP1). Subsequent functional studies have revealed that LRRFIP1/GCF2 played multiple roles in the regulation of diverse biological systems and processes, such as in immune response to microorganisms and auto-immunity, remodeling of cytoskeletal system, signal transduction pathways, and transcriptional regulations of genes. Dysregulations of LRRFIP1/GCF2 have been implicated in the causes of several experimental and clinico-pathological states and the responses to them, such as autoimmune diseases, excitotoxicity after stroke, thrombosis formation, inflammation and obesity, the wound healing process, and in cancers. LRRFIP1/GCF2 is a bioregulator in multidisciplinary systems of the human body and its dysregulation can cause diverse human diseases.
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Affiliation(s)
- Masato Takimoto
- Institute for Genetic Medicine, Hokkaido University, Hokkaido 060-0815, Japan.
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7
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Denaro N, Merlano MC, Lo Nigro C. Long noncoding RNAs as regulators of cancer immunity. Mol Oncol 2019; 13:61-73. [PMID: 30499165 PMCID: PMC6322193 DOI: 10.1002/1878-0261.12413] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 11/09/2018] [Accepted: 11/26/2018] [Indexed: 02/06/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) are increasingly known to be important in cancer as they directly interact with the cell cycle, proliferation pathways and microbiome balance. Moreover, lncRNAs regulate the immune system: they do not directly encode proteins of innate or adaptive immunity, but regulate immune cell differentiation and function, such as dendritic cell activity, T cell ratio and metabolism. The result of this complex interaction is that lncRNAs regulate cancer processes through a complex multimodal system involving immunity, metabolism and infection. The possible functions of lncRNAs and their roles in the regulation of cancer immunity will be reported and discussed in the present review. Recent studies showed their function as regulators in the tumour microenvironment (TME), epithelial-mesenchymal transition, microbiota, metabolism and immune cell differentiation. However, there is not much knowledge regarding their roles in cancer immunity regulation. Thus, the main aim of this review is to describe lncRNAs that have specifically been associated with immunity, the immune cycle and the TME.
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Affiliation(s)
- Nerina Denaro
- Oncology DepartmentS. Croce & Carle Teaching HospitalCuneoItaly
| | | | - Cristiana Lo Nigro
- Oncology DepartmentS. Croce & Carle Teaching HospitalCuneoItaly
- Laboratory of Clinical TrialsLaboratory DepartmentS. Croce & Carle Teaching HospitalCuneoItaly
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8
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Kopecki Z, Stevens NE, Yang GN, Melville E, Cowin AJ. Recombinant Leucine-Rich Repeat Flightless-Interacting Protein-1 Improves Healing of Acute Wounds through Its Effects on Proliferation Inflammation and Collagen Deposition. Int J Mol Sci 2018; 19:ijms19072014. [PMID: 29996558 PMCID: PMC6073877 DOI: 10.3390/ijms19072014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/04/2018] [Accepted: 07/07/2018] [Indexed: 02/07/2023] Open
Abstract
Wound healing is an increasing clinical problem involving substantial morbidity, mortality, and rising health care costs. Leucine-rich repeat flightless-interacting protein-1 (LRRFIP-1) regulates toll-like receptor (TLR)-mediated inflammation, suggesting a potential role in the healing of wounds. We sought to determine the role of LRRFIP-1 in wound repair and whether the exogenous addition of recombinant LRRFIP-1 (rLRRFIP-1) affected healing responses. Using a model of full-thickness incisional acute wounds in BALB/c mice, we investigated the effect of wounding on LRRFIP-1 expression. The effect of rLRRFIP-1 on cellular proliferation, inflammation, and collagen deposition was also investigated. LRRFIP-1 was upregulated in response to wounding, was found to directly associate with flightless I (Flii), and significantly increased cellular proliferation both in vitro and in vivo. rLRRFIP-1 reduced Flii expression in wounds in vivo and resulted in significantly improved healing with a concurrent dampening of TLR4-mediated inflammation and improved collagen deposition. Additionally, decreased levels of TGF-β1 and increased levels of TGF-β3 were observed in rLRRFIP-1-treated wounds suggesting a possible antiscarring effect of rLRRFIP-1. Further studies are required to elucidate if the mechanisms behind LRRFIP-1 action in wound repair are independent of Flii. However, these results identify rLRRFIP-1 as a possible treatment modality for improved healing of acute wounds.
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Affiliation(s)
- Zlatko Kopecki
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
| | - Natalie E Stevens
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
| | - Gink N Yang
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
| | - Elizabeth Melville
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
| | - Allison J Cowin
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
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9
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Zur Bruegge J, Einspanier R, Sharbati S. A Long Journey Ahead: Long Non-coding RNAs in Bacterial Infections. Front Cell Infect Microbiol 2017; 7:95. [PMID: 28401065 PMCID: PMC5368183 DOI: 10.3389/fcimb.2017.00095] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 03/13/2017] [Indexed: 12/24/2022] Open
Abstract
Bacterial pathogens have coevolved with their hosts and acquired strategies to circumvent defense mechanisms of host cells. It was shown that bacteria interfere with the expression of mammalian microRNAs to modify immune signaling, autophagy, or the apoptotic machinery. Recently, a new class of regulatory RNAs, long non-coding RNAs (lncRNAs), was reported to have a pivotal role in the regulation of eukaryotic gene expression. A growing body of literature reports on specific involvement of lncRNAs in the host cell response toward bacterial infections. This mini review summarizes recent data that focuses on lncRNA function in host cells during bacterial infection and provides a perspective where future research in this regard may be going.
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Affiliation(s)
- Jennifer Zur Bruegge
- Department of Veterinary Medicine, Institute of Veterinary Biochemistry, Freie Universität Berlin Berlin, Germany
| | - Ralf Einspanier
- Department of Veterinary Medicine, Institute of Veterinary Biochemistry, Freie Universität Berlin Berlin, Germany
| | - Soroush Sharbati
- Department of Veterinary Medicine, Institute of Veterinary Biochemistry, Freie Universität Berlin Berlin, Germany
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10
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Labbé P, Faure E, Lecointe S, Le Scouarnec S, Kyndt F, Marrec M, Le Tourneau T, Offmann B, Duplaà C, Zaffran S, Schott JJ, Merot J. The alternatively spliced LRRFIP1 Isoform-1 is a key regulator of the Wnt/β-catenin transcription pathway. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:1142-1152. [PMID: 28322931 DOI: 10.1016/j.bbamcr.2017.03.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 03/15/2017] [Accepted: 03/17/2017] [Indexed: 01/22/2023]
Abstract
The GC-rich Binding Factor 2/Leucine Rich Repeat in the Flightless 1 Interaction Protein 1 gene (GCF2/LRRFIP1) is predicted to be alternatively spliced in five different isoforms. Although important peptide sequence differences are expected to result from this alternative splicing, to date, only the gene transcription regulator properties of LRRFIP1-Iso5 were unveiled. Based on molecular, cellular and biochemical data, we show here that the five isoforms define two molecular entities with different expression profiles in human tissues, subcellular localizations, oligomerization properties and transcription enhancer properties of the canonical Wnt pathway. We demonstrated that LRRFIP1-Iso3, -4 and -5, which share over 80% sequence identity, are primarily located in the cell cytoplasm and form homo and hetero-multimers between each other. In contrast, LRRFIP1-Iso1 and -2 are primarily located in the cell nucleus in part thanks to their shared C-terminal domain. Furthermore, we showed that LRRFIP1-Iso1 is preferentially expressed in the myocardium and skeletal muscle. Using the in vitro Topflash reporter assay we revealed that among LRRFIP1 isoforms, LRRFIP1-Iso1 is the strongest enhancer of the β-catenin Wnt canonical transcription pathway thanks to a specific N-terminal domain harboring two critical tryptophan residues (W76, 82). In addition, we showed that the Wnt enhancer properties of LRRFIP1-Iso1 depend on its homo-dimerisation which is governed by its specific coiled coil domain. Together our study identified LRRFIP1-Iso1 as a critical regulator of the Wnt canonical pathway with a potential role in myocyte differentiation and myogenesis.
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Affiliation(s)
- Pauline Labbé
- l'institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | - Emilie Faure
- Aix Marseille Univ, INSERM, GMGF, Marseille, France
| | | | | | | | | | | | | | - Cécile Duplaà
- INSERM, Biology of Cardiovascular Diseases, U1034, F-33600 Pessac, France
| | | | - Jean Jacques Schott
- l'institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France; CHU Nantes, Nantes, France
| | - Jean Merot
- l'institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France.
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11
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Long Non-Coding RNAs Regulating Immunity in Insects. Noncoding RNA 2017; 3:ncrna3010014. [PMID: 29657286 PMCID: PMC5832008 DOI: 10.3390/ncrna3010014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 03/04/2017] [Accepted: 03/07/2017] [Indexed: 02/06/2023] Open
Abstract
Recent advances in modern technology have led to the understanding that not all genetic information is coded into protein and that the genomes of each and every organism including insects produce non-coding RNAs that can control different biological processes. Among RNAs identified in the last decade, long non-coding RNAs (lncRNAs) represent a repertoire of a hidden layer of internal signals that can regulate gene expression in physiological, pathological, and immunological processes. Evidence shows the importance of lncRNAs in the regulation of host–pathogen interactions. In this review, an attempt has been made to view the role of lncRNAs regulating immune responses in insects.
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12
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Sarmento OF, Svingen PA, Xiong Y, Sun Z, Bamidele AO, Mathison AJ, Smyrk TC, Nair AA, Gonzalez MM, Sagstetter MR, Baheti S, McGovern DPB, Friton JJ, Papadakis KA, Gautam G, Xavier RJ, Urrutia RA, Faubion WA. The Role of the Histone Methyltransferase Enhancer of Zeste Homolog 2 (EZH2) in the Pathobiological Mechanisms Underlying Inflammatory Bowel Disease (IBD). J Biol Chem 2017; 292:706-722. [PMID: 27909059 PMCID: PMC5241744 DOI: 10.1074/jbc.m116.749663] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 11/21/2016] [Indexed: 12/14/2022] Open
Abstract
Regulatory T (Treg) cells expressing the transcription factor FOXP3 play a pivotal role in maintaining immunologic self-tolerance. We and others have shown previously that EZH2 is recruited to the FOXP3 promoter and its targets in Treg cells. To further address the role for EZH2 in Treg cellular function, we have now generated mice that lack EZH2 specifically in Treg cells (EZH2Δ/ΔFOXP3+). We find that EZH2 deficiency in FOXP3+ T cells results in lethal multiorgan autoimmunity. We further demonstrate that EZH2Δ/ΔFOXP3+ T cells lack a regulatory phenotype in vitro and secrete proinflammatory cytokines. Of special interest, EZH2Δ/ΔFOXP3+ mice develop spontaneous inflammatory bowel disease. Guided by these results, we assessed the FOXP3 and EZH2 gene networks by RNA sequencing in isolated intestinal CD4+ T cells from patients with Crohn's disease. Gene network analysis demonstrates that these CD4+ T cells display a Th1/Th17-like phenotype with an enrichment of gene targets shared by FOXP3 and EZH2. Combined, these results suggest that the inflammatory milieu found in Crohn's disease could lead to or result from deregulation of FOXP3/EZH2-enforced T cell gene networks contributing to the underlying intestinal inflammation.
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Affiliation(s)
- Olga F Sarmento
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | - Phyllis A Svingen
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | - Yuning Xiong
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | - Zhifu Sun
- Division of Biomedical Statistics and Informatics, and
| | - Adebowale O Bamidele
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | - Angela J Mathison
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | - Thomas C Smyrk
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota 55905
| | - Asha A Nair
- Division of Biomedical Statistics and Informatics, and
| | - Michelle M Gonzalez
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | - Mary R Sagstetter
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | | | - Dermot P B McGovern
- the F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Hospital, Los Angeles, California 90048
| | - Jessica J Friton
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | - Konstantinos A Papadakis
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | - Goel Gautam
- the Gastrointestinal Unit and Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, and
- the Center for Computational and Integrative Biology, The Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142
| | - Ramnik J Xavier
- the Gastrointestinal Unit and Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, and
- the Center for Computational and Integrative Biology, The Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142
| | - Raul A Urrutia
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine
| | - William A Faubion
- From the Epigenetics and Chromatin Dynamics Laboratory, Division of Gastroenterology and Hepatology and Translational Epigenomic Program, Center for Individualized Medicine,
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13
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Modular transcriptional repertoire and MicroRNA target analyses characterize genomic dysregulation in the thymus of Down syndrome infants. Oncotarget 2016; 7:7497-533. [PMID: 26848775 PMCID: PMC4884935 DOI: 10.18632/oncotarget.7120] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 01/23/2016] [Indexed: 12/25/2022] Open
Abstract
Trisomy 21-driven transcriptional alterations in human thymus were characterized through gene coexpression network (GCN) and miRNA-target analyses. We used whole thymic tissue--obtained at heart surgery from Down syndrome (DS) and karyotipically normal subjects (CT)--and a network-based approach for GCN analysis that allows the identification of modular transcriptional repertoires (communities) and the interactions between all the system's constituents through community detection. Changes in the degree of connections observed for hierarchically important hubs/genes in CT and DS networks corresponded to community changes. Distinct communities of highly interconnected genes were topologically identified in these networks. The role of miRNAs in modulating the expression of highly connected genes in CT and DS was revealed through miRNA-target analysis. Trisomy 21 gene dysregulation in thymus may be depicted as the breakdown and altered reorganization of transcriptional modules. Leading networks acting in normal or disease states were identified. CT networks would depict the "canonical" way of thymus functioning. Conversely, DS networks represent a "non-canonical" way, i.e., thymic tissue adaptation under trisomy 21 genomic dysregulation. This adaptation is probably driven by epigenetic mechanisms acting at chromatin level and through the miRNA control of transcriptional programs involving the networks' high-hierarchy genes.
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14
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Zhou T, Ding JW, Wang XA, Zheng XX. Long noncoding RNAs and atherosclerosis. Atherosclerosis 2016; 248:51-61. [PMID: 26987066 DOI: 10.1016/j.atherosclerosis.2016.02.025] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 02/18/2016] [Accepted: 02/18/2016] [Indexed: 01/13/2023]
Abstract
Atherosclerosis is universally recognized as a chronic lipid-induced inflammation of the vessel wall in response to dyslipidemia and haemodynamic stress involving dysfunction and activation of resident vascular cells as well as infiltration of leukocytes. As members of nonprotein-coding RNAs, the long noncoding RNAs (lncRNAs) are implicated in various biological processes. Accumulating evidences suggest that lncRNAs regulate the function of vascular wall, activation of macrophages, lipid metabolism and immune response. Here, we review the effects of lncRNAs on the progress of atherosclerosis.
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Affiliation(s)
- Tian Zhou
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang 443000, Hubei Province, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, Hubei Province, China
| | - Jia-wang Ding
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang 443000, Hubei Province, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, Hubei Province, China.
| | - Xin-an Wang
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang 443000, Hubei Province, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, Hubei Province, China
| | - Xia-xia Zheng
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang 443000, Hubei Province, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, Hubei Province, China
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15
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Long noncoding RNAs: a potent source of regulation in immunity and disease. Immunol Cell Biol 2016; 93:277-83. [PMID: 25776990 DOI: 10.1038/icb.2015.2] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 12/06/2014] [Indexed: 12/14/2022]
Abstract
The discovery of functional long noncoding RNAs (lncRNAs) coupled with the ever-increasing accessibility of genomic and transcriptomic technology has led to an explosion of functional and mechanistic investigation and discovery into what was once dismissed as junk DNA. Over the past decade, a significant number of lncRNAs have been found to be involved in a diverse array of processes: from epigenetic modulation, both repressive and activating; to protein scaffolding; to miRNA sequestration; to competitive inhibition; and more. The broad character of these mechanisms means that lncRNAs have the potential for regulation across all biological processes-not least of which are immunity and disease. A number of lncRNAs operating within these two contexts have already been identified and characterized, but untold more remain yet to be discovered. This review aims to provide an overview of the current state of research on lncRNAs involved in immune modulation and disease, with an emphasis on their mechanism and discovery.
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16
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Ching T, Masaki J, Weirather J, Garmire LX. Non-coding yet non-trivial: a review on the computational genomics of lincRNAs. BioData Min 2015; 8:44. [PMID: 26697116 PMCID: PMC4687140 DOI: 10.1186/s13040-015-0075-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Accepted: 12/04/2015] [Indexed: 02/01/2023] Open
Abstract
Long intergenic non-coding RNAs (lincRNAs) represent one of the most mysterious RNA species encoded by the human genome. Thanks to next generation sequencing (NGS) technology and its applications, we have recently witnessed a surge in non-coding RNA research, including lincRNA research. Here, we summarize the recent advancement in genomics studies of lincRNAs. We review the emerging characteristics of lincRNAs, the experimental and computational approaches to identify lincRNAs, their known mechanisms of regulation, the computational methods and resources for lincRNA functional predictions, and discuss the challenges to understanding lincRNA comprehensively.
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Affiliation(s)
- Travers Ching
- Molecular Biosciences and Bioengineering Graduate Program, University of Hawaii at Manoa, Honolulu, HI 96822 USA
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI 96813 USA
| | - Jayson Masaki
- Laboratory of Immunology and Signal Transduction, Chaminade University of Honolulu, Honolulu, HI 96816 USA
| | - Jason Weirather
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242 USA
| | - Lana X. Garmire
- Molecular Biosciences and Bioengineering Graduate Program, University of Hawaii at Manoa, Honolulu, HI 96822 USA
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI 96813 USA
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17
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Valadkhan S, Gunawardane LS. lncRNA-mediated regulation of the interferon response. Virus Res 2015; 212:127-36. [PMID: 26474526 PMCID: PMC4744491 DOI: 10.1016/j.virusres.2015.09.023] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 09/24/2015] [Accepted: 09/29/2015] [Indexed: 12/18/2022]
Abstract
A large number of lncRNAs are differentially expressed in response to IFN stimulation. Two IFN-induced lncRNAs act as negative regulators of the IFN response. Another IFN-induced lncRNA positively regulates the expression of its neighboring gene, BST2/Tetherin. Several virally-encoded lncRNAs increase viral pathogenicity by suppressing the IFN response.
The interferon (IFN) response is a critical arm of the innate immune response and a major host defense mechanism against viral infections. Following microbial encounter, a series of signaling events lead to transcriptional activation of the IFN genes, which in turn leads to significant changes in the cellular transcriptome by altering the expression of hundreds of target genes. Emerging evidence suggests that long non-coding RNAs (lncRNAs) constitute a major subgroup of the IFN target genes, and further, that the IFN response is subject to regulation by a large number of host- and pathogen-derived lncRNAs. While the vast majority of lncRNAs with potential roles in the IFN response remain unstudied, analysis of a very small subset provides a glimpse of the regulatory impact of this class of RNAs on IFN response.
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Affiliation(s)
- Saba Valadkhan
- Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106 USA.
| | - Lalith S Gunawardane
- Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106 USA.
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18
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Sandhya P, Joshi K, Scaria V. Long noncoding RNAs could be potential key players in the pathophysiology of Sjögren's syndrome. Int J Rheum Dis 2015; 18:898-905. [PMID: 26420575 DOI: 10.1111/1756-185x.12752] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Long noncoding RNAs (lncRNAs) are a recently discovered class of noncoding functional RNAs encoded by metazoan genomes. Recent studies suggest a larger regulatory role for lncRNAs in critical biological and disease processes. Mounting evidence on the role of lncRNAs in regulating key processes of the immune system prompted us to hypothesize the role of lncRNAs as key regulators of the pathophysiology of Sjögren's syndrome (SS). We used two similar approaches based on reanalysis of microarray expression datasets and curation of lncRNA-protein coding gene interactions from literature to derive support for our hypothesis. We also discuss potential caveats to our approach and suggest approaches to validate the hypothesis. Our analysis suggests the potential larger and hitherto unknown role of lncRNA regulatory networks in modulating the expression of key genes involved in the pathogenesis of SS and thereby modulating the pathophysiology of SS.
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Affiliation(s)
- Pulukool Sandhya
- Department of Clinical Immunology and Rheumatology, Christian Medical College, Vellore, India
| | - Kandarp Joshi
- Open Source Drug Discovery Unit, Delhi, India.,Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, Delhi, India
| | - Vinod Scaria
- Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, Delhi, India.,GN Ramachandran Knowledge Centre for Genome Informatics, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), Delhi, India
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19
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Yan B, Yao J, Liu JY, Li XM, Wang XQ, Li YJ, Tao ZF, Song YC, Chen Q, Jiang Q. lncRNA-MIAT regulates microvascular dysfunction by functioning as a competing endogenous RNA. Circ Res 2015; 116:1143-56. [PMID: 25587098 DOI: 10.1161/circresaha.116.305510] [Citation(s) in RCA: 472] [Impact Index Per Article: 52.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
RATIONALE Pathological angiogenesis is a critical component of diseases, such as ocular disorders, cancers, and atherosclerosis. It is usually caused by the abnormal activity of biological processes, such as cell proliferation, cell motility, immune, or inflammation response. Long noncoding RNAs (lncRNAs) have emerged as critical regulators of these biological processes. However, the role of lncRNA in diabetes mellitus-induced microvascular dysfunction is largely unknown. OBJECTIVE To elucidate whether lncRNA-myocardial infarction-associated transcript (MIAT) is involved in diabetes mellitus-induced microvascular dysfunction. METHODS AND RESULTS Using quantitative polymerase chain reaction, we demonstrated increased expression of lncRNA-MIAT in diabetic retinas and endothelial cells cultured in high glucose medium. Visual electrophysiology examination, TUNEL staining, retinal trypsin digestion, vascular permeability assay, and in vitro studies revealed that MIAT knockdown obviously ameliorated diabetes mellitus-induced retinal microvascular dysfunction in vivo, and inhibited endothelial cell proliferation, migration, and tube formation in vitro. Bioinformatics analysis, luciferase assay, RNA immunoprecipitation, and in vitro studies revealed that MIAT functioned as a competing endogenous RNA, and formed a feedback loop with vascular endothelial growth factor and miR-150-5p to regulate endothelial cell function. CONCLUSIONS This study highlights the involvement of lncRNA-MIAT in pathological angiogenesis and facilitates the development of lncRNA-directed diagnostics and therapeutics against neovascular diseases.
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Affiliation(s)
- Biao Yan
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China.
| | - Jin Yao
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China
| | - Jing-Yu Liu
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China
| | - Xiu-Miao Li
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China
| | - Xiao-Qun Wang
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China
| | - Yu-Jie Li
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China
| | - Zhi-Fu Tao
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China
| | - Yu-Chen Song
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China
| | - Qi Chen
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China
| | - Qin Jiang
- From the Department of Central Laboratory, Eye Hospital (B.Y., J.-Y.L., J.Y., X.-M.L., X.-Q.W., Y.-J.L., Z.-F.T., Y.-C.S., Q.J.), Department of Ophthalmology, The Fourth School of Clinical Medicine (B.Y., J.Y., Q.J.), and Department of Pathophysiology, School of Basic Medical Sciences (Q.C.), Nanjing Medical University, Nanjing, China.
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20
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Heward JA, Lindsay MA. Long non-coding RNAs in the regulation of the immune response. Trends Immunol 2014; 35:408-19. [PMID: 25113636 PMCID: PMC7106471 DOI: 10.1016/j.it.2014.07.005] [Citation(s) in RCA: 326] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 07/13/2014] [Accepted: 07/16/2014] [Indexed: 11/23/2022]
Abstract
Widespread changes in lncRNA expresssion are associated with the immune response. lncRNAs regulate the inflammatory response following activation of innate immunity. lncRNAs regulate T cell differentiation and migration. The action of long non-coding RNAs is mediated via diverse mechanisms.
It is increasingly clear that long non-coding RNAs (lncRNAs) regulate a variety biological responses, and that they do so by a diverse range of mechanisms. In the field of immunology, recent publications have shown widespread changes in the expression of lncRNAs during the activation of the innate immune response and T cell development, differentiation, and activation. These lncRNAs control important aspects of immunity such as production of inflammatory mediators, differentiation, and cell migration through regulating protein–protein interactions or via their ability to basepair with RNA and DNA. We review the current understanding of the mechanism of action of these immune-related lncRNAs, discuss their impact on physiological and pathological processes, and highlight important areas of inquiry at the intersection between immunology and lncRNA biology.
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Affiliation(s)
- James A Heward
- Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Mark A Lindsay
- Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath BA2 7AY, UK.
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