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Tumino N, Fiore PF, Pelosi A, Moretta L, Vacca P. Myeloid derived suppressor cells in tumor microenvironment: Interaction with innate lymphoid cells. Semin Immunol 2022; 61-64:101668. [PMID: 36370673 DOI: 10.1016/j.smim.2022.101668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 11/10/2022]
Abstract
Human myeloid-derived suppressor cells (MDSC) represent a stage of immature myeloid cells and two main subsets can be identified: monocytic and polymorphonuclear. MDSC contribute to the establishment of an immunosuppressive tumor microenvironment (TME). The presence and the activity of MDSC in patients with different tumors correlate with poor prognosis. As previously reported, MDSC promote tumor growth and use different mechanisms to suppress the immune cell-mediated anti-tumor activity. Immunosuppression mechanisms used by MDSC are broad and depend on their differentiation stage and on the pathological context. It is known that some effector cells of the immune system can play an important role in the control of tumor progression and metastatic spread. In particular, innate lymphoid cells (ILC) contribute to control tumor growth representing a potential, versatile and, immunotherapeutic tool. Despite promising results obtained by using new cellular immunotherapeutic approaches, a relevant proportion of patients do not benefit from these therapies. Novel strategies have been investigated to overcome the detrimental effect exerted by the immunosuppressive component of TME (i.e. MDSC). In this review, we summarized the characteristics and the interactions occurring between MDSC and ILC in different tumors discussing how a deeper knowledge on MDSC biology could represent an important target for tumor immunotherapy capable of decreasing immunosuppression and enhancing anti-tumor activity exerted by immune cells.
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Affiliation(s)
- Nicola Tumino
- Innate lymphoid cells Unit, Immunology Research Area, Bambino Gesù Children's Hospital IRCCS, Rome, Italy.
| | | | - Andrea Pelosi
- Tumor Immunology Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Lorenzo Moretta
- Tumor Immunology Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Paola Vacca
- Innate lymphoid cells Unit, Immunology Research Area, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
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2
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Guo Y, Xie Y, Luo Y. The Role of Long Non-Coding RNAs in the Tumor Immune Microenvironment. Front Immunol 2022; 13:851004. [PMID: 35222443 PMCID: PMC8863945 DOI: 10.3389/fimmu.2022.851004] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 01/24/2022] [Indexed: 02/05/2023] Open
Abstract
Tumorigenesis is a complicated process caused by successive genetic and epigenetic alterations. The past decades demonstrated that the immune system affects tumorigenesis, tumor progression, and metastasis. Although increasing immunotherapies are revealed, only a tiny proportion of them are effective. Long non-coding RNAs (lncRNAs) are a class of single-stranded RNA molecules larger than 200 nucleotides and are essential in the molecular network of oncology and immunology. Increasing researches have focused on the connection between lncRNAs and cancer immunotherapy. However, the in-depth mechanisms are still elusive. In this review, we outline the latest studies on the functions of lncRNAs in the tumor immune microenvironment. Via participating in various biological processes such as neutrophil recruitment, macrophage polarization, NK cells cytotoxicity, and T cells functions, lncRNAs regulate tumorigenesis, tumor invasion, epithelial-mesenchymal transition (EMT), and angiogenesis. In addition, we reviewed the current understanding of the relevant strategies for targeting lncRNAs. LncRNAs-based therapeutics may represent promising approaches in serving as prognostic biomarkers or potential therapeutic targets in cancer, providing ideas for future research and clinical application on cancer diagnosis and therapies.
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Affiliation(s)
- Yingli Guo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Yajuan Xie
- Department of Orthodontics, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yao Luo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
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3
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Kim YJ, Yeon Y, Lee WJ, Shin YU, Cho H, Lim HW, Kang MH. Analysis of MicroRNA Expression in Tears of Patients with Herpes Epithelial Keratitis: A Preliminary Study. Invest Ophthalmol Vis Sci 2022; 63:21. [PMID: 35475887 PMCID: PMC9055549 DOI: 10.1167/iovs.63.4.21] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Purpose Herpes epithelial keratitis (HEK) is the most common form of herpes simplex virus (HSV) eye involvement, and understanding the molecular mechanisms underlying HEK is important. We investigated the expression of microRNAs (miRNAs) in the tears of patients with HEK. Methods Tear samples from eight patients with HEK and seven age-matched controls were evaluated. Clinical ophthalmologic evaluation was performed, and an anterior segment photograph was obtained after fluorescence staining. Dendritic or geographic ulcer areas were measured using ImageJ software. The expression of 43 different miRNAs in tears was measured using real-time polymerase chain reaction and compared between patients with HEK and controls. Differences in miRNA expression between the dendritic and geographic ulcer groups and correlations involving miRNA expression and ulcer area were evaluated. Results Of the 43 miRNAs, 23 were upregulated in patients with HEK compared to normal controls. MiR-15b-5p, miR-16-5p, miR-20b-5p, miR-21-5p, miR-23b-3p, miR-25-3p, miR-29a-3p, miR-30a-3p, miR-30d-5p, miR-92a-3p, miR-124-3p, miR-127-3p, miR-132-3p, miR-142-3p, miR-145-5p, miR-146a-5p, miR-146b-5p, miR-155-5p, miR-182-5p, miR-183-5p, miR-221-3p, miR-223-3p, and miR-338-5p were significantly upregulated in patients with HEK. MiR-29a-3p exhibited significant differences between the dendritic and geographic ulcer groups. All 23 miRNAs with significant differences between patients with HEK and the control group were not significantly correlated with ulcer area. Conclusions Twenty-three miRNAs were significantly upregulated in the tears of patients with HEK, and the expression of miRNAs may play important roles in herpes infection in relation to host immunity.
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Affiliation(s)
- Yu Jeong Kim
- Department of Ophthalmology, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Yeji Yeon
- Department of Ophthalmology, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Won June Lee
- Department of Ophthalmology, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Yong Un Shin
- Department of Ophthalmology, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Heeyoon Cho
- Department of Ophthalmology, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Han Woong Lim
- Department of Ophthalmology, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Min Ho Kang
- Department of Ophthalmology, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Republic of Korea
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4
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The role of microRNA in the pathogenesis of glial brain tumors. Noncoding RNA Res 2022; 7:71-76. [PMID: 35330864 PMCID: PMC8907600 DOI: 10.1016/j.ncrna.2022.02.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 02/21/2022] [Accepted: 02/21/2022] [Indexed: 12/23/2022] Open
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5
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Rikhtegar R, Mosimann PJ, Rothaupt J, Mirza-Aghazadeh-Attari M, Hallaj S, Yousefi M, Amiri A, Farashi E, Kheyrollahiyan A, Dolati S. Non-coding RNAs role in intracranial aneurysm: General principles with focus on inflammation. Life Sci 2021; 278:119617. [PMID: 34004250 DOI: 10.1016/j.lfs.2021.119617] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/30/2021] [Accepted: 05/09/2021] [Indexed: 02/07/2023]
Abstract
Intracranial aneurysm (IA) is one of the most challenging vascular lesions in the brain for clinicians. It was reported that 1%-6% of the world's population is affected by IAs. Owing to serious complications arising from these lesions, much attention has been paid to better understand their pathophysiology. Non-coding RNAs including short non-coding RNAs and long non-coding RNAs, have critical roles in modulating physiologic and pathological processes. These RNAs are emerging as new fundamental regulators of gene expression, are related with the progression of IA. Non-coding RNAs act via multiple mechanisms and be involved in vascular development, growth and remodeling. Furthermore, these molecules are involved in the regulation of inflammation, a key process in the formation and rupture of IA. Studying non-coding RNAs can yield a hypothetical mechanism for better understanding IA. The present study aims to focus on the role of these non-coding RNAs in the pathogenesis of IA.
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Affiliation(s)
- Reza Rikhtegar
- Department of Intracranial Endovascular Therapy, Alfried Krupp Krankenhaus Essen, Essen, Germany
| | - Pascal J Mosimann
- Department of Intracranial Endovascular Therapy, Alfried Krupp Krankenhaus Essen, Essen, Germany
| | - Jan Rothaupt
- Department of Intracranial Endovascular Therapy, Alfried Krupp Krankenhaus Essen, Essen, Germany
| | | | - Shahin Hallaj
- Burn and Regenerative Medicine Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Atefeh Amiri
- Department of Cardiology, Marien Marl Hospital, Marl, Germany
| | - Ebrahim Farashi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Sanam Dolati
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
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6
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Do Transgenerational Epigenetic Inheritance and Immune System Development Share Common Epigenetic Processes? J Dev Biol 2021; 9:jdb9020020. [PMID: 34065783 PMCID: PMC8162332 DOI: 10.3390/jdb9020020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/02/2021] [Accepted: 05/06/2021] [Indexed: 12/14/2022] Open
Abstract
Epigenetic modifications regulate gene expression for development, immune response, disease, and other processes. A major role of epigenetics is to control the dynamics of chromatin structure, i.e., the condensed packaging of DNA around histone proteins in eukaryotic nuclei. Key epigenetic factors include enzymes for histone modifications and DNA methylation, non-coding RNAs, and prions. Epigenetic modifications are heritable but during embryonic development, most parental epigenetic marks are erased and reset. Interestingly, some epigenetic modifications, that may be resulting from immune response to stimuli, can escape remodeling and transmit to subsequent generations who are not exposed to those stimuli. This phenomenon is called transgenerational epigenetic inheritance if the epigenetic phenotype persists beyond the third generation in female germlines and second generation in male germlines. Although its primary function is likely immune response for survival, its role in the development and functioning of the immune system is not extensively explored, despite studies reporting transgenerational inheritance of stress-induced epigenetic modifications resulting in immune disorders. Hence, this review draws from studies on transgenerational epigenetic inheritance, immune system development and function, high-throughput epigenetics tools to study those phenomena, and relevant clinical trials, to focus on their significance and deeper understanding for future research, therapeutic developments, and various applications.
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7
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Abu-Izneid T, AlHajri N, Ibrahim AM, Javed MN, Salem KM, Pottoo FH, Kamal MA. Micro-RNAs in the regulation of immune response against SARS CoV-2 and other viral infections. J Adv Res 2021; 30:133-145. [PMID: 33282419 PMCID: PMC7708232 DOI: 10.1016/j.jare.2020.11.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/24/2020] [Accepted: 11/28/2020] [Indexed: 02/06/2023] Open
Abstract
Background Micro-RNAs (miRNAS) are non-coding, small RNAs that have essential roles in different biological processes through silencing genes, they consist of 18-24 nucleotide length RNA molecules. Recently, miRNAs have been viewed as important modulators of viral infections they can function as suppressors of gene expression by targeting cellular or viral RNAs during infection. Aim of review We describe the biological roles and effects of miRNAs on SARS-CoV-2 life-cycle and pathogenicity, and we discuss the modulation of the immune system with micro-RNAs which would serve as a new foundation for the treatment of SARS-CoV-2 and other viral infections. Key scientific concepts of review miRNAs are the key players that regulate the expression of the gene in the post-transcriptional phase and have important effects on viral infections, thus are potential targets in the development of novel therapeutics for the treatment of viral infections. Besides, micro-RNAs (miRNAs) modulation of immune-pathogenesis responses to viral infection is one of the most-known indirect effects, which leads to suppressing of the interferon (IFN-α/β) signalling cascade or upregulation of the IFN-α/β production another IFN-stimulated gene (ISGs) that inhibit replication of the virus. These virus-mediated alterations in miRNA levels lead to an environment that might either enhance or inhibit virus replication.
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Affiliation(s)
- Tareq Abu-Izneid
- Pharmaceutical Sciences, College of Pharmacy, Al Ain University, Al Ain, Abu Dhabi, United Arab Emirates
| | - Noora AlHajri
- Department of Epidemiology and Population Health, College of Medicine, Khalifa University, United Arab Emirates
| | - Abdallah Mohammad Ibrahim
- Fundamentals of Nursing Department, College of Nursing, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Md. Noushad Javed
- Department of Pharmaceutics, School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New-Delhi, India
| | - Khairi Mustafa Salem
- Pharmaceutical Sciences, College of Pharmacy, Al Ain University, Al Ain, Abu Dhabi, United Arab Emirates
| | - Faheem Hyder Pottoo
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Mohammad Amjad Kamal
- West China School of Nursing/Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
- King Fahd Medical Research Center, King Abdulaziz University, P. O. Box 80216, Jeddah 21589, Saudi Arabia
- Enzymoics, Novel Global Community Educational Foundation, 7 Peterlee Place, Hebersham, NSW 2770, Australia
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Lenart M, Działo E, Kluczewska A, Węglarczyk K, Szaflarska A, Rutkowska-Zapała M, Surmiak M, Sanak M, Pituch-Noworolska A, Siedlar M. miRNA Regulation of NK Cells Antiviral Response in Children With Severe and/or Recurrent Herpes Simplex Virus Infections. Front Immunol 2021; 11:589866. [PMID: 33679688 PMCID: PMC7931645 DOI: 10.3389/fimmu.2020.589866] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 12/07/2020] [Indexed: 12/21/2022] Open
Abstract
Severe and/or recurrent infection with Herpes simplex virus (HSV) is observed in a large group of patients treated in clinical immunology facilities. Atypical and prolonged HSV infection is the most common clinical manifestation of disturbed NK cell development and functions, yet the molecular basis of these disorders is still largely unknown. Since recent findings indicated the importance of miRNA in regulating NK cell development, maturation and functions, the aim of our study was to investigate miRNA expression pattern in NK cells in patients with severe and/or recurrent infections with HSV and analyze the role of these miRNAs in NK cell antiviral response. As a result, miRNA expression pattern analysis of human best known 754 miRNAs revealed that patients with severe and/or recurrent HSV infection had substantially upregulated expression of four miRNAs: miR-27b, miR-199b, miR-369-3p and miR-491-3p, when compared to healthy controls. Selective inhibition of miR-27b, miR-199b, miR-369-3p and miR-491-3p expression in NK-92 cells resulted in profound upregulation of 4 genes (APOBEC3G, MAP2K3, MAVS and TLR7) and downregulation of 36 genes taking part in antiviral response or associated with signaling pathways of Toll-like receptors (TLR), NOD-like receptors, the retinoic acid-inducible gene I (RIG-I)-like receptors (RLRs) and type I IFN-related response. Additionally, flow cytometry analysis revealed that miR-369-3p and miR-491-3p inhibitors downregulated NK cell intracellular perforin expression, while the expression of granzyme B and IFNγ remained unchanged. Taken together, our study suggests a novel mechanism which may promote recurrence and severity of HSV infection, based on miRNAs-dependent posttranscriptional regulation of genes taking part in antiviral response of human NK cells.
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Affiliation(s)
- Marzena Lenart
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Edyta Działo
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Anna Kluczewska
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Kazimierz Węglarczyk
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Anna Szaflarska
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Magdalena Rutkowska-Zapała
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Marcin Surmiak
- II Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Marek Sanak
- II Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Anna Pituch-Noworolska
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Maciej Siedlar
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
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9
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Kong Y, Li S, Cheng X, Ren H, Zhang B, Ma H, Li M, Zhang XA. Brain Ischemia Significantly Alters microRNA Expression in Human Peripheral Blood Natural Killer Cells. Front Immunol 2020; 11:759. [PMID: 32477329 PMCID: PMC7240012 DOI: 10.3389/fimmu.2020.00759] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 04/03/2020] [Indexed: 11/13/2022] Open
Abstract
Brain ischemia induces systemic immunosuppression and increases a host's susceptibility to infection. MicroRNAs (miRNAs) are molecular switches in immune cells, but the alterations of miRNAs in human immune cells in response to brain ischemia and their impact on immune defense remain elusive. Natural killer (NK) cells are critical for early host defenses against pathogens. In this study, we identified reduced counts, cytokine production, and cytotoxicity in human peripheral blood NK cells obtained from patients with acute ischemic stroke. The extent of NK cell loss of number and activity was associated with infarct volume. MicroRNA sequencing analysis revealed that brain ischemia significantly altered miRNA expression profiles in circulating NK cells, in which miRNA-451a and miRNA-122-5p were dramatically upregulated. Importantly, inhibition of miR-451a or miR-122-5p augmented the expression of activation-associated receptors in NK cells. These results provide the first evidence that brain ischemia alters miRNA signatures in human NK cells.
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Affiliation(s)
- Ying Kong
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Shiyao Li
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Xiaojing Cheng
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Honglei Ren
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China.,Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Bohao Zhang
- Department of Imaging, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongshan Ma
- Center for Neurological Diseases, The Third People's Hospital of Datong, Datong, China
| | - Minshu Li
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Neurological Institute, Key Laboratory of Post-neurotrauma Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Xiao-An Zhang
- Department of Imaging, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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10
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Hargreaves BKV, Roberts SE, Derfalvi B, Boudreau JE. Highly efficient serum-free manipulation of miRNA in human NK cells without loss of viability or phenotypic alterations is accomplished with TransIT-TKO. PLoS One 2020; 15:e0231664. [PMID: 32302338 PMCID: PMC7164639 DOI: 10.1371/journal.pone.0231664] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/27/2020] [Indexed: 02/08/2023] Open
Abstract
Natural killer (NK) cells are innate lymphocytes with functions that include target cell killing, inflammation and regulation. NK cells integrate incoming activating and inhibitory signals through an array of germline-encoded receptors to gauge the health of neighbouring cells. The reactive potential of NK cells is influenced by microRNA (miRNA), small non-coding sequences that interfere with mRNA expression. miRNAs are highly conserved between species, and a single miRNA can have hundreds to thousands of targets and influence entire cellular programs. Two miRNA species, miR-155-5p and miR-146a-5p are known to be important in controlling NK cell function, but research to best understand the impacts of miRNA species within NK cells has been bottlenecked by a lack of techniques for altering miRNA concentrations efficiently and without off-target effects. Here, we describe a non-viral and straightforward approach for increasing or decreasing expression of miRNA in primary human NK cells. We achieve >90% transfection efficiency without off-target impacts on NK cell viability, education, phenotype or function. This opens the opportunity to study and manipulate NK cell miRNA profiles and their impacts on NK cellular programs which may influence outcomes of cancer, inflammation and autoimmunity.
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Affiliation(s)
| | | | - Beata Derfalvi
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Canada
- Department of Pediatrics, Dalhousie University, Halifax, Canada
| | - Jeanette E. Boudreau
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Canada
- Department of Pathology, Dalhousie University, Halifax, Canada
- * E-mail:
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11
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Pelosi A, Alicata C, Tumino N, Ingegnere T, Loiacono F, Mingari MC, Moretta L, Vacca P. An Anti-inflammatory microRNA Signature Distinguishes Group 3 Innate Lymphoid Cells From Natural Killer Cells in Human Decidua. Front Immunol 2020; 11:133. [PMID: 32117280 PMCID: PMC7015979 DOI: 10.3389/fimmu.2020.00133] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 01/17/2020] [Indexed: 01/03/2023] Open
Abstract
Innate lymphoid cells (ILCs) are a heterogeneous subset of lymphocytes deeply implicated in the innate immune responses to different pathogens, in lymphoid organogenesis and in the maintenance of tissue homeostasis. Group 3 innate lymphoid cells (ILC3) have been detected in human decidua, where they play a role in the early inflammatory phase favoring implantation and tissue remodeling as well as in the subsequent regulatory phase preventing fetal rejection and supporting neoangiogenesis. A balance between inflammation and immune tolerance is required to maintain pregnancy, thus maternal immune system must be controlled by finely tuned mechanisms. microRNAs (miRNAs) are small non-coding RNAs with important regulatory roles in immune cells, but their function in decidual ILC3 (dILC3) and in decidual NK (dNK) cells is still undefined. Here, we examined the miRNome by microarray in these cells during the first trimester of pregnancy and compared with miRNA profiles of peripheral blood NK (pbNK) cells from pregnant women. We show that distinct miRNA profiles could clearly distinguish dILC3 from NK cells. Correlation analyses revealed that dNK and pbNK miRNome profiles are more similar to each other as compared to dILC3. In particular, we identified 302 and 279 mature miRNAs differentially expressed in dILC3 as compared to dNK and pbNK, respectively. The expression of miR-574-3p and the miR-99b/let-7e/miR-125a miRNA cluster resulted the most increased in dILC3. Remarkably, gene ontology analysis and pathway enrichments of miRNA targets revealed an involvement of these miRNAs in the promotion of anti-inflammatory responses. In agreement to this finding, we also found a higher expression of the anti-inflammatory miR-146a-5p in dILC3 with respect to NK cells. Overall, our data identified specific miRNA signatures distinguishing dILC3, dNK, and pbNK cells. Our data suggest the existence of a tight epigenetic control mediated by miRNAs in dILC3, potentially acting as a brake to prevent exaggerated inflammatory responses and to maintain the immune homeostasis in the early phases of pregnancy.
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Affiliation(s)
- Andrea Pelosi
- Immunology Research Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
| | - Claudia Alicata
- Immunology Research Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
| | - Nicola Tumino
- Immunology Research Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
| | - Tiziano Ingegnere
- Immunology Research Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
| | - Fabrizio Loiacono
- Immunology Operative Unit, Department of Integrated Oncological Therapies, IRCCS Policlinico San Martino Hospital, Genoa, Italy
| | - Maria Cristina Mingari
- Immunology Operative Unit, Department of Integrated Oncological Therapies, IRCCS Policlinico San Martino Hospital, Genoa, Italy.,Department of Experimental Medicine, School of Medical and Pharmaceutical Sciences, University of Genoa, Genoa, Italy.,Center of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
| | - Lorenzo Moretta
- Immunology Research Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
| | - Paola Vacca
- Immunology Research Area, IRCCS Bambino Gesù Pediatric Hospital, Rome, Italy
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12
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Qi X, Li Z, Li H, Wang T, Zhang Y, Wang J. MicroRNA-1 Negatively Regulates Peripheral NK Cell Function via Tumor Necrosis Factor-Like Weak Inducer of Apoptosis (TWEAK) Signaling Pathways During PPRV Infection. Front Immunol 2020; 10:3066. [PMID: 32038620 PMCID: PMC6989477 DOI: 10.3389/fimmu.2019.03066] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 12/16/2019] [Indexed: 12/11/2022] Open
Abstract
Peste des petits ruminants virus (PPRV) has emerged as a significant threat to the productivity of small ruminants worldwide. PPRV is lymphotropic in nature and induces in the hosts a transient but severe immunosuppression, especially innate immunity. However, it remains largely unknown how NK cells respond and are regulated at the earliest time points after an acute viral PPRV infection in goats. In this study, we revealed that multiple immune responses of goat peripheral NK cells were compromised during PPRV infection, including the cytolytic effector molecule expression and cytokine production. Importantly, we demonstrated that PPRV infection stimulated the expression of TWEAK, a negative regulator of cytotoxic function of NK cells, which may be involved in the suppression of cytotoxicity as well as cytokine production in infected goat NK cells. Furthermore, we found that PPRV infection induced TWEAK expression in goat NK cells involving post-transcription by suppressing miR-1, a novel negative miRNA directly targeting the TWEAK gene. Moreover, replication of virus is required for inhibition of miR-1 expression during PPRV infection, and the non-structural V protein of PPRV plays an important role in miR-1 mediated TWEAK upregulation. Additionally, we revealed that the regulation of NK cell immune responses by TWEAK is mediated by MyD88, SOCS1, and STAT3. Taken together, our results demonstrated that TWEAK may play a key role in regulating goat peripheral NK cell cytotoxicity and cytokine expression levels during PPRV infection.
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Affiliation(s)
- Xuefeng Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Zhen Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Huan Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Ting Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yanming Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jingyu Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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13
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Capuano C, Pighi C, Maggio R, Battella S, Morrone S, Palmieri G, Santoni A, Klein C, Galandrini R. CD16 pre-ligation by defucosylated tumor-targeting mAb sensitizes human NK cells to γ c cytokine stimulation via PI3K/mTOR axis. Cancer Immunol Immunother 2020; 69:501-512. [PMID: 31950225 PMCID: PMC7113231 DOI: 10.1007/s00262-020-02482-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/04/2020] [Indexed: 12/18/2022]
Abstract
Obinutuzumab is a glycoengineered tumor-targeting anti-CD20 mAb with a modified crystallizable fragment (Fc) domain designed to increase the affinity for the FcγRIIIA/CD16 receptor, which was recently approved for clinical use in CLL and follicular lymphoma. Here we extend our previous observation that, in human NK cells, the sustained CD16 ligation by obinutuzumab-opsonized targets leads to a markedly enhanced IFN-γ production upon a subsequent cytokine re-stimulation. The increased IFN-γ competence in response to IL-2 or IL-15 is attributable to post-transcriptional regulation, as it does not correlate with the upregulation of IFN-γ mRNA levels. Different from the reference molecule rituximab, we observe that the stimulation with obinutuzumab promotes the upregulation of microRNA (miR)-155 expression. A similar trend was also observed in NK cells from untreated CLL patients stimulated with obinutuzumab-opsonized autologous leukemia. miR-155 upregulation associates with reduced levels of SHIP-1 inositol phosphatase, which acts in constraining PI3K-dependent signals, by virtue of its ability to mediate phosphatidylinositol 3,4,5-trisphosphate (PIP3) de-phosphorylation. Downstream of PI3K, the phosphorylation status of mammalian target of rapamycin (mTOR) effector molecule, S6, results in amplified response to IL-2 or IL-15 stimulation in obinutuzumab-experienced cells. Importantly, NK cell treatment with the PI3K or mTOR inhibitors, idelalisib and rapamycin, respectively, prevents the enhanced cytokine responsiveness, thus, highlighting the relevance of the PI3K/mTOR axis in CD16-dependent priming. The enhanced IFN-γ competence may be envisaged to potentiate the immunoregulatory role of NK cells in a therapeutic setting.
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Affiliation(s)
- Cristina Capuano
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Chiara Pighi
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Roberta Maggio
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy.,Clinical Cancer Research, Imperial College London, London, UK
| | - Simone Battella
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Stefania Morrone
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Gabriella Palmieri
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Angela Santoni
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy.,Laboratorio Pasteur Italia Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy.,IRCCS Neuromed, Pozzilli, Italy
| | - Christian Klein
- Roche Pharmaceutical Research and Early Development Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Ricciarda Galandrini
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy.
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14
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Rostami Z, Khorashadizadeh M, Naseri M. Immunoregulatory properties of mesenchymal stem cells: Micro-RNAs. Immunol Lett 2020; 219:34-45. [PMID: 31917251 DOI: 10.1016/j.imlet.2019.12.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/16/2019] [Accepted: 12/30/2019] [Indexed: 02/07/2023]
Abstract
Mesenchymal stem cells (MSCs) are multipotent cells that are excellent candidates for different cellular therapies due to their physiological properties such as immunoregulatory function. whetheare currently utilized for regenerative medication and treatment of a number of inflammatory illnesses given their ability to considerably impact tissue microenvironments via extracellular vesicles or toll-like receptor pathway modulation. MicroRNAs (miRNAs) are small noncoding RNAs that target the messenger RNA and play a critical role in different biological procedures, such as the development and reaction of the immune system. Moreover, miRNAs have recently been revealed to have serious functions in MSCs to regulate immunomodulatory properties. In this review, we study how the miRNAs pathway can modulate the immunoregulatory activity of MSCs by counting their interactions with immune cells and also discuss the possibility of using miRNA-based implications for MSC-based therapies.
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Affiliation(s)
- Zeinab Rostami
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran; Department of Immunology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohsen Khorashadizadeh
- Medical Biotechnology (PhD), Department of Medical Biotechnology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohsen Naseri
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran; Department of Immunology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran.
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15
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Xu SJ, Hu HT, Li HL, Chang S. The Role of miRNAs in Immune Cell Development, Immune Cell Activation, and Tumor Immunity: With a Focus on Macrophages and Natural Killer Cells. Cells 2019; 8:cells8101140. [PMID: 31554344 PMCID: PMC6829453 DOI: 10.3390/cells8101140] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 12/13/2022] Open
Abstract
The tumor microenvironment (TME) is the primary arena where tumor cells and the host immune system interact. Bidirectional communication between tumor cells and the associated stromal cell types within the TME influences disease initiation and progression, as well as tumor immunity. Macrophages and natural killer (NK) cells are crucial components of the stromal compartment and display either pro- or anti-tumor properties, depending on the expression of key regulators. MicroRNAs (miRNAs) are emerging as such regulators. They affect several immune cell functions closely related to tumor evasion of the immune system. This review discusses the role of miRNAs in the differentiation, maturation, and activation of immune cells as well as tumor immunity, focusing particularly on macrophages and NK cells.
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Affiliation(s)
- Shi Jun Xu
- Department of Radiology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China.
| | - Hong Tao Hu
- Department of Minimal Invasive Intervention, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China.
| | - Hai Liang Li
- Department of Radiology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China.
- Department of Minimal Invasive Intervention, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China.
| | - Suhwan Chang
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul 05505, Korea.
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16
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Nutalai R, Gaudieri S, Jumnainsong A, Leelayuwat C. Regulation of KIR3DL3 Expression via Mirna. Genes (Basel) 2019; 10:genes10080603. [PMID: 31405037 PMCID: PMC6723774 DOI: 10.3390/genes10080603] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 07/31/2019] [Accepted: 08/05/2019] [Indexed: 12/12/2022] Open
Abstract
Killer-cell immunoglobulin-like receptor (KIR) 3DL3 is a framework gene present in all human KIR haplotypes. Although the structure of KIR3DL3 is suggestive of an inhibitory receptor, the function of KIR3DL3 has not been demonstrated and cognate ligands have not been identified. KIR3DL3 has been shown to be constitutively expressed at a low RNA level in peripheral blood mononuclear cell (PBMC) and decidual natural kill (NK) cells, but cell surface expression of KIR3DL3 cannot be detected. Accordingly, post-transcriptional regulation of KIR3DL3 should exist. Using bioinformatics analysis, we identified three candidate micro ribonucleic acids (miRNAs; miR-26a-5p, -26b-5p and -185-5p) that potentially regulate KIR3DL3 expression. Luciferase reporter assays utilizing constructs with mutated miRNA-binding sites of miR-26a-5p, -26b-5p and -185-5p in the 3’-untranslated region (3’ UTR) of KIR3DL3 resulted in up-regulation of luciferase activity demonstrating a potential mechanism of gene regulation. Furthermore, knockdown of the same endogenous miRNAs using silencing ribonucleic acid (siRNA) led to induced surface expression of KIR3DL3. In conclusion, we provide a novel mechanism of functional regulation of KIR3DL3 via miRNAs. These findings are relevant in understanding the generation of KIR repertoire and NK cell clonality.
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Affiliation(s)
- Rungtiwa Nutalai
- Biomedical Sciences Program, Graduates School of Khon Kaen University, Khon Kaen 40002, Thailand
- Department of Clinical Immunology and Transfusion Sciences, School of Medical Technology, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
- The Centre for Research and Development of Medical Diagnostic Laboratories (CMDL), Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Silvana Gaudieri
- School of Human Sciences, University of Western Australia, Perth, WA 6009, Australia
- Institute for Immunology and Infectious Diseases, Murdoch University, Perth, WA 6150, Australia
- Division of Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Amonrat Jumnainsong
- Department of Clinical Immunology and Transfusion Sciences, School of Medical Technology, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
- The Centre for Research and Development of Medical Diagnostic Laboratories (CMDL), Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chanvit Leelayuwat
- Department of Clinical Immunology and Transfusion Sciences, School of Medical Technology, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand.
- The Centre for Research and Development of Medical Diagnostic Laboratories (CMDL), Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand.
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17
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Cortez MA, Anfossi S, Ramapriyan R, Menon H, Atalar SC, Aliru M, Welsh J, Calin GA. Role of miRNAs in immune responses and immunotherapy in cancer. Genes Chromosomes Cancer 2019; 58:244-253. [PMID: 30578699 DOI: 10.1002/gcc.22725] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/20/2018] [Accepted: 12/20/2018] [Indexed: 12/13/2022] Open
Abstract
In the past decade, the study of mechanisms of cancer immunity has seen a prominent boom, which paralleled the increased amount of research on the clinical efficacy of immune checkpoint blockade in several lethal types of cancers. This conspicuous effort has led to the development of successful immunotherapy treatment strategies, whose medical impact has been recognized by the awarding of 2018 Nobel Prize in Physiology or Medicine to the two pioneers of check point inhibitor research, Tasuku Honjo and James Allison. Despite these promising achievements, the differences in the clinical response rate in different cancer patients and the high risk of toxicity of immune-based therapies represent crucial challenges. More remarkably, the causes responsible for different outcome (success vs failure) in patients with tumor having same histotype and clinical characteristics remain mostly unknown. MicroRNAs (miRNAs), small regulatory noncoding RNA molecules representing the most studied component of the dark matter of the human genome, are involved in the regulation of many pathways of cancer and immune cells. Therefore, understanding the role of miRNAs in controlling cancer immunity is necessary, as it can contribute to reveal mechanisms that can be modulated to improve the success of immunetherapy in cancer patients. Here, we discuss the latest findings on immune pathways regulated by miRNAs in cancer, miRNA-mediated regulation of immune cells in the tumor microenvironment, and miRNAs as potential target for immunotherapies.
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Affiliation(s)
- Maria Angelica Cortez
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Simone Anfossi
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Rishab Ramapriyan
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hari Menon
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Semra Cemre Atalar
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Maureen Aliru
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - James Welsh
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - George A Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, Texas
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18
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de Mel S, Hue SSS, Jeyasekharan AD, Chng WJ, Ng SB. Molecular pathogenic pathways in extranodal NK/T cell lymphoma. J Hematol Oncol 2019; 12:33. [PMID: 30935402 PMCID: PMC6444858 DOI: 10.1186/s13045-019-0716-7] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 02/28/2019] [Indexed: 01/01/2023] Open
Abstract
Extranodal NK/T cell lymphoma, nasal type (ENKTL) is an aggressive malignancy with a dismal prognosis. Although L-asparaginase-based chemotherapy has resulted in improved response rates, relapse occurs in up to 50% of patients with disseminated disease. There is hence an urgent need for effective targeted therapy, especially for patients with relapsed or refractory disease. Novel insights gleaned from high-throughput molecular and genomic profiling studies in recent years have contributed significantly to the understanding of the molecular biology of ENKTL, which exemplifies many of the hallmarks of cancer. Deregulated pro-proliferative signaling pathways, such as the Janus-associated kinase/signal transducer and activator of transcription (JAK/STAT), platelet-derived growth factor (PDGF), Aurora kinase, MYC, and NF-κB, have been identified as potential therapeutic targets. The discovery of the non-canonical function of EZH2 as a pro-proliferative transcriptional co-activator has shed further light on the pathogenesis of ENKTL. Loss of key tumor suppressor genes located on chromosome 6q21 also plays an important role. The best-studied examples include PR domain zinc finger protein 1(PRDM1), protein tyrosine phosphatase kappa (PTPRK), and FOXO3. Promoter hypermethylation has been shown to result in the downregulation of other tumor suppressor genes in ENKTL, which may be potentially targeted through hypomethylating agents. Deregulation of apoptosis through p53 mutations and upregulation of the anti-apoptotic protein, survivin, may provide a further growth advantage to this tumor. A deranged DNA damage response as a result of the aberration of ataxia telangiectasia-related (ATR) kinases can lead to significant genomic instability and may contribute to chemoresistance of ENKTL. Recently, immune evasion has emerged as a critical pathway for survival in ENKTL and may be a consequence of HLA dysregulation or STAT3-driven upregulation of programmed cell death ligand 1 (PD-L1). Immunotherapy via inhibition of programmed cell death 1 (PD-1)/PD-L1 checkpoint signaling holds great promise as a novel therapeutic option. In this review, we present an overview of the key molecular and pathogenic pathways in ENKTL, organized using the framework of the "hallmarks of cancer" as described by Hanahan and Weinberg, with a focus on those with the greatest translational potential.
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Affiliation(s)
- Sanjay de Mel
- Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, 1E Kent Ridge Rd, Singapore, 119228, Singapore
| | - Susan Swee-Shan Hue
- Department of Pathology, National University Health System, Singapore, Singapore.,Agency for Science Technology and Research Singapore, Institute of Molecular and Cellular Biology, Singapore, Singapore
| | - Anand D Jeyasekharan
- Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, 1E Kent Ridge Rd, Singapore, 119228, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Wee-Joo Chng
- Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, 1E Kent Ridge Rd, Singapore, 119228, Singapore. .,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.
| | - Siok-Bian Ng
- Department of Pathology, National University Health System, Singapore, Singapore. .,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore. .,Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, 5 Lower Kent Ridge Road, Singapore, 119074, Singapore.
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19
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de Mel S, Soon GST, Mok Y, Chung TH, Jeyasekharan AD, Chng WJ, Ng SB. The Genomics and Molecular Biology of Natural Killer/T-Cell Lymphoma: Opportunities for Translation. Int J Mol Sci 2018; 19:E1931. [PMID: 29966370 PMCID: PMC6073933 DOI: 10.3390/ijms19071931] [Citation(s) in RCA: 23] [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: 05/29/2018] [Revised: 06/23/2018] [Accepted: 06/25/2018] [Indexed: 01/03/2023] Open
Abstract
Extranodal NK/T-cell lymphoma, nasal type (ENKTL), is an aggressive malignancy with a poor prognosis. While the introduction of L-asparaginase in the treatment of this disease has significantly improved the prognosis, the outcome of patients relapsing after asparaginase-based chemotherapy, which occurs in up to 50% of patients with disseminated disease, remains dismal. There is hence an urgent need for effective targeted therapy especially in the relapsed/refractory setting. Gene expression profiling studies have provided new perspectives on the molecular biology, ontogeny and classification of ENKTL and further identified dysregulated signaling pathways such as Janus associated kinase (/Signal Transducer and activation of transcription (JAK/STAT), Platelet derived growth factor (PDGF), Aurora Kinase and NF-κB, which are under evaluation as therapeutic targets. Copy number analyses have highlighted potential tumor suppressor genes such as PR Domain Zinc Finger Protein 1 (PRDM1) and protein tyrosine phosphatase kappa (PTPRK) while next generation sequencing studies have identified recurrently mutated genes in pro-survival and anti-apoptotic pathways. The discovery of epigenetic dysregulation and aberrant microRNA activity has broadened our understanding of the biology of ENKTL. Importantly, immunotherapy via Programmed Cell Death -1 (PD-1) and Programmed Cell Death Ligand1 (PD-L1) checkpoint signaling inhibition is emerging as an attractive therapeutic strategy in ENKTL. Herein, we present an overview of the molecular biology and genomic landscape of ENKTL with a focus on the most promising translational opportunities.
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Affiliation(s)
- Sanjay de Mel
- Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, Singapore 110974, Singapore.
| | - Gwyneth Shook-Ting Soon
- Department of Pathology, National University Hospital, National University Health System, Singapore 110974, Singapore.
| | - Yingting Mok
- Department of Pathology, National University Hospital, National University Health System, Singapore 110974, Singapore.
| | - Tae-Hoon Chung
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 110974, Singapore.
| | - Anand D Jeyasekharan
- Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, Singapore 110974, Singapore.
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 110974, Singapore.
| | - Wee-Joo Chng
- Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, Singapore 110974, Singapore.
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 110974, Singapore.
| | - Siok-Bian Ng
- Department of Pathology, National University Hospital, National University Health System, Singapore 110974, Singapore.
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 110974, Singapore.
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore.
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20
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Tahamtan A, Teymoori-Rad M, Nakstad B, Salimi V. Anti-Inflammatory MicroRNAs and Their Potential for Inflammatory Diseases Treatment. Front Immunol 2018; 9:1377. [PMID: 29988529 PMCID: PMC6026627 DOI: 10.3389/fimmu.2018.01377] [Citation(s) in RCA: 242] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 06/04/2018] [Indexed: 12/27/2022] Open
Abstract
Inflammation is a complicated biological and pathophysiological cascade of responses to infections and injuries, and inflammatory mechanisms are closely related to many diseases. The magnitude, the complicated network of pro- and anti-inflammatory factors, and the direction of the inflammatory response can impact on the development and progression of various disorders. The currently available treatment strategies often target the symptoms and not the causes of inflammatory disease and may often be ineffective. Since the onset and termination of inflammation are crucial to prevent tissue damage, a range of mechanisms has evolved in nature to regulate the process including negative and positive feedback loops. In this regard, microRNAs (miRNAs) have emerged as key gene regulators to control inflammation, and it is speculated that they are fine-tune signaling regulators to allow for proper resolution and prevent uncontrolled progress of inflammatory reactions. In this review, we discuss recent findings related to significant roles of miRNAs in immune regulation, especially the potential utility of these molecules as novel anti-inflammatory agents to treat inflammatory diseases. Furthermore, we discuss the possibilities of using miRNAs as drugs in the form of miRNA mimics or miRNA antagonists.
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Affiliation(s)
- Alireza Tahamtan
- Infectious Diseases Research Centre, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Microbiology, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Majid Teymoori-Rad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Britt Nakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Vahid Salimi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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21
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Kuo G, Wu CY, Yang HY. MiR-17-92 cluster and immunity. J Formos Med Assoc 2018; 118:2-6. [PMID: 29857952 DOI: 10.1016/j.jfma.2018.04.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 04/19/2018] [Accepted: 04/26/2018] [Indexed: 01/07/2023] Open
Abstract
MicroRNAs (MiR, MiRNA) are small single-stranded non-coding RNAs that play an important role in the regulation of gene expression. MircoRNAs exert their effect by binding to complementary nucleotide sequences of the targeted messenger RNA, thus forming an RNA-induced silencing complex. The mircoRNA-17-92 cluster encoded by the miR-17-92 host gene is first found in malignant B-cell lymphoma. Recent research identifies the miR-17-92 cluster as a crucial player in the development of the immune system, the heart, the lung, and oncogenic events. In light of the miR-17-92 cluster's increasing role in regulating the immune system, our review will discuss the latest knowledge regarding its involvement in cells of both innate and adaptive immunity, including B cells, subsets of T cells such as Th1, Th2, T follicular helper cells, regulatory T cells, monocytes/macrophages, NK cells, and dendritic cells, and the possible targets that are regulated by its members.
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Affiliation(s)
- George Kuo
- Department of Nephrology, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chao-Yi Wu
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Huang-Yu Yang
- Department of Nephrology, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
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22
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Soliman B, Salem A, Ghazy M, Abu-Shahba N, El Hefnawi M. Bioinformatics functional analysis of let-7a, miR-34a, and miR-199a/b reveals novel insights into immune system pathways and cancer hallmarks for hepatocellular carcinoma. Tumour Biol 2018; 40:1010428318773675. [PMID: 29775159 DOI: 10.1177/1010428318773675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Let-7a, miR-34a, and miR-199 a/b have gained a great attention as master regulators for cellular processes. In particular, these three micro-RNAs act as potential onco-suppressors for hepatocellular carcinoma. Bioinformatics can reveal the functionality of these micro-RNAs through target prediction and functional annotation analysis. In the current study, in silico analysis using innovative servers (miRror Suite, DAVID, miRGator V3.0, GeneTrail) has demonstrated the combinatorial and the individual target genes of these micro-RNAs and further explored their roles in hepatocellular carcinoma progression. There were 87 common target messenger RNAs (p ≤ 0.05) that were predicted to be regulated by the three micro-RNAs using miRror 2.0 target prediction tool. In addition, the functional enrichment analysis of these targets that was performed by DAVID functional annotation and REACTOME tools revealed two major immune-related pathways, eight hepatocellular carcinoma hallmarks-linked pathways, and two pathways that mediate interconnected processes between immune system and hepatocellular carcinoma hallmarks. Moreover, protein-protein interaction network for the predicted common targets was obtained by using STRING database. The individual analysis of target genes and pathways for the three micro-RNAs of interest using miRGator V3.0 and GeneTrail servers revealed some novel predicted target oncogenes such as SOX4, which we validated experimentally, in addition to some regulated pathways of immune system and hepatocarcinogenesis such as insulin signaling pathway and adipocytokine signaling pathway. In general, our results demonstrate that let-7a, miR-34a, and miR-199 a/b have novel interactions in different immune system pathways and major hepatocellular carcinoma hallmarks. Thus, our findings shed more light on the roles of these miRNAs as cancer silencers.
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Affiliation(s)
- Bangly Soliman
- 1 Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt.,2 Informatics and Systems Department, Biomedical Informatics and Chemo-Informatics Group, Centre of Excellence for Advanced Sciences (CEAS), Division of Engineering Research, National Research Centre, Cairo, Egypt
| | - Ahmed Salem
- 1 Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Mohamed Ghazy
- 1 Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Nourhan Abu-Shahba
- 3 Stem Cells Research Group, Medical Centre of Excellence, Medical Molecular Genetics Department, National Research Centre, Cairo, Egypt
| | - Mahmoud El Hefnawi
- 2 Informatics and Systems Department, Biomedical Informatics and Chemo-Informatics Group, Centre of Excellence for Advanced Sciences (CEAS), Division of Engineering Research, National Research Centre, Cairo, Egypt.,4 Centre for Informatics, Nile University, Sheikh Zayed City, Egypt
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23
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Wang H, Zhang Y, Wu X, Wang Y, Cui H, Li X, Zhang J, Tun N, Peng Y, Yu J. Regulation of Human Natural Killer Cell IFN-γ Production by MicroRNA-146a via Targeting the NF-κB Signaling Pathway. Front Immunol 2018; 9:293. [PMID: 29593706 PMCID: PMC5854688 DOI: 10.3389/fimmu.2018.00293] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 02/01/2018] [Indexed: 02/05/2023] Open
Abstract
Natural killer (NK) cells are one group of innate lymphocytes that are important for host defense against malignancy and viruses. MicroRNAs (miRNAs) play a critical role in regulating responses of immune cells including NK cells. Accumulating evidence suggests that miR-146a is involved in the regulation of immune responses. However, the mechanism by which miR-146a regulates NK cell function is largely unknown. In the current study, we found that miR-146a intrinsically regulated NK cell function. Forced overexpression of miR-146a decreased IFN-γ production, whereas downregulation of miR-146a by anti-miR-146a significantly enhanced IFN-γ production in the human NK-92 cell line and primary human NK cells upon stimulation with IL-12 or co-stimulation with IL-12 and IL-18. Mechanistically, miR-146a regulated IFN-γ production via NF-κB, as evidenced in NK-92 cells, by downregulation of NF-κB p65 phosphorylation when miR-146a was overexpressed but upregulation of NF-κB p65 phosphorylation when anti-miR-146a was overexpressed. miR-146a directly targeted IRAK1 and TRAF6, the upstream signaling components of the NF-κB signaling pathway. This direct targeting mechanism confirmed the above gain- and loss-of-function approaches. However, the potent IFN-γ-producing subset, CD56bright NK cells, expressed higher levels of miR-146a than the lesser IFN-γ-producing subset, CD56dim NK cells. We also observed that co-stimulation of IL-12 and IL-18 significantly increased miR-146a expression in bulk NK cells and in the CD56bright subset in a time-dependent manner, correlating with augmented IFN-γ production. These data suggest that miR-146a plays a negative role in IFN-γ production by human NK cells and this miRNA may be critical in preventing NK cells from being super activated and overproducing IFN-γ.
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Affiliation(s)
- Hongwei Wang
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States.,Department of Pathology, the First Affiliated Hospital, Chinese PLA General Hospital, Beijing, China
| | - Yibo Zhang
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
| | - Xiaojin Wu
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States.,The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yufeng Wang
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
| | - Hanwei Cui
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States.,Department of Obstetrics and Gynecology, Daping Hospital, Army Medical School, Chongqing, China
| | - Xinxin Li
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
| | - Jianying Zhang
- Department of Bioinformatics, The Ohio State University, Columbus, OH, United States
| | - Norman Tun
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
| | - Yong Peng
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Jianhua Yu
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States.,Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, United States.,The James Cancer Hospital, Columbus, OH, United States
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24
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de Mel S, Tan JZC, Jeyasekharan AD, Chng WJ, Ng SB. Transcriptomic Abnormalities in Epstein Barr Virus Associated T/NK Lymphoproliferative Disorders. Front Pediatr 2018; 6:405. [PMID: 30705877 PMCID: PMC6344448 DOI: 10.3389/fped.2018.00405] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/06/2018] [Indexed: 11/13/2022] Open
Abstract
Epstein Barr virus positive T/NK lymphoproliferative disorders (EBV-TNKLPD) comprise a spectrum of neoplasms ranging from cutaneous lymphoid proliferations to aggressive lymphomas. The spectrum includes extranodal NK/T-cell lymphoma (ENKTL), aggressive NK-cell leukemia, and a group of EBV-TNKLPDs affecting children which are poorly characterized in terms of their molecular biology. Gene and miRNA expression profiling has elucidated RNA abnormalities which impact on disease biology, classification, and treatment of EBV-TNKLPD. Pathways promoting proliferation, such as Janus associated kinase/ Signal Transducer and Activator of Transcription (JAK/STAT) and nuclear factor kB, are upregulated in ENKTL while upregulation of survivin and deregulation of p53 inhibit apoptosis in both ENKTL and chronic active EBV infection (CAEBV). Importantly, immune evasion via the programmed cell death-1 and its ligand, PD-1/PD-L1 checkpoint pathway, has been demonstrated to play an important role in ENKTL. Other pathogenic mechanisms involve EBV genes, microRNA deregulation, and a variety of other oncogenic signaling pathways. The identification of EBV-positive Peripheral T-cell lymphoma not otherwise specified (PTCL-NOS) as a tumor with a distinct molecular signature and clinical characteristics highlights the important contribution of the knowledge derived from gene and miRNA expression profiling in disease classification. Novel therapeutic targets identified through the study of RNA abnormalities provide hope for patients with EBV-TNKLPD, which often has a poor prognosis. Immune checkpoint inhibition and JAK inhibition in particular have shown promise and are being evaluated in clinical trials. In this review, we provide an overview of the key transcriptomic aberrancies in EBV-TNKLPD and discuss their translational potential.
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Affiliation(s)
- Sanjay de Mel
- Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, Singapore, Singapore
| | | | - Anand D Jeyasekharan
- Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, Singapore, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Wee-Joo Chng
- Department of Haematology-Oncology, National University Cancer Institute of Singapore, National University Health System, Singapore, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Siok-Bian Ng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Pathology, National University Health System, Singapore, Singapore
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25
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Singh PB, Pua HH, Happ HC, Schneider C, von Moltke J, Locksley RM, Baumjohann D, Ansel KM. MicroRNA regulation of type 2 innate lymphoid cell homeostasis and function in allergic inflammation. J Exp Med 2017; 214:3627-3643. [PMID: 29122948 PMCID: PMC5716040 DOI: 10.1084/jem.20170545] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 07/05/2017] [Accepted: 09/21/2017] [Indexed: 12/30/2022] Open
Abstract
Singh et al. examined microRNA expression and physiological requirements in type 2 innate lymphoid cells (ILC2s). The miR-17∼92 cluster promotes ILC2 growth, cytokine expression, and function in allergic inflammation. MicroRNAs (miRNAs) exert powerful effects on immunity through coordinate regulation of multiple target genes in a wide variety of cells. Type 2 innate lymphoid cells (ILC2s) are tissue sentinel mediators of allergic inflammation. We established the physiological requirements for miRNAs in ILC2 homeostasis and immune function and compared the global miRNA repertoire of resting and activated ILC2s and T helper type 2 (TH2) cells. After exposure to the natural allergen papain, mice selectively lacking the miR-17∼92 cluster in ILC2s displayed reduced lung inflammation. Moreover, miR-17∼92–deficient ILC2s exhibited defective growth and cytokine expression in response to IL-33 and thymic stromal lymphopoietin in vitro. The miR-17∼92 cluster member miR-19a promoted IL-13 and IL-5 production and inhibited expression of several targets, including SOCS1 and A20, signaling inhibitors that limit IL-13 and IL-5 production. These findings establish miRNAs as important regulators of ILC2 biology, reveal overlapping but nonidentical miRNA-regulated gene expression networks in ILC2s and TH2 cells, and reinforce the therapeutic potential of targeting miR-19 to alleviate pathogenic allergic responses.
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Affiliation(s)
- Priti B Singh
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA.,Sandler Asthma Basic Research Center, University of California, San Francisco, San Francisco, CA
| | - Heather H Pua
- Department of Pathology, University of California, San Francisco, San Francisco, CA.,Sandler Asthma Basic Research Center, University of California, San Francisco, San Francisco, CA
| | - Hannah C Happ
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA.,Sandler Asthma Basic Research Center, University of California, San Francisco, San Francisco, CA
| | - Christoph Schneider
- Department of Medicine, University of California, San Francisco, San Francisco, CA
| | - Jakob von Moltke
- Department of Medicine, University of California, San Francisco, San Francisco, CA
| | - Richard M Locksley
- Department of Medicine, University of California, San Francisco, San Francisco, CA.,Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA.,Sandler Asthma Basic Research Center, University of California, San Francisco, San Francisco, CA
| | - Dirk Baumjohann
- Institute for Immunology, Biomedical Center Munich, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - K Mark Ansel
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA .,Sandler Asthma Basic Research Center, University of California, San Francisco, San Francisco, CA
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26
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Rizzo R, Soffritti I, D'Accolti M, Bortolotti D, Di Luca D, Caselli E. HHV-6A/6B Infection of NK Cells Modulates the Expression of miRNAs and Transcription Factors Potentially Associated to Impaired NK Activity. Front Microbiol 2017; 8:2143. [PMID: 29163428 PMCID: PMC5671584 DOI: 10.3389/fmicb.2017.02143] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 10/19/2017] [Indexed: 12/15/2022] Open
Abstract
Natural killer (NK) cells have a critical role in controlling virus infections, and viruses have evolved several mechanisms to escape NK cell functions. In particular, Human herpesvirus 6 (HHV-6) is associated with diseases characterized by immune dysregulation and has been reported to infect NK cells. We recently found that HHV-6 in vitro infection of human thyroid follicular epithelial cells and T-lymphocytes modulates several miRNAs associated with alterations in immune response. Since miRNAs are key regulators of many immune pathways, including NK cell functions, we aimed to study the impact of HHV-6A and -6B in vitro infection on the intracellular mediators correlated to NK cell function. To this purpose, a human NK cell line (NK-92) was infected in vitro with HHV-6A or 6B and analyzed for alterations in the expression of miRNAs and transcription factors. The results showed that both viruses establish lytic replication in NK-92 cells, as shown by the presence of viral DNA, expression of lytic transcripts and antigens, and by the induction of an evident cytopathic effect. Notably, both viruses, although with species-specific differences, induced significant modifications in miRNA expression of miRNAs known for their role in NK cell development, maturation and effector functions (miR-146, miR-155, miR-181, miR-223), and on at least 13 miRNAs with recognized role in inflammation and autoimmunity. Also the expression of transcription factors was significantly modified by HHV-6A/6B infection, with an early increase of ATF3, JUN and FOXA2 by both species, whereas HHV-6A specifically induced a 15-fold decrease of POU2AF1, and HHV-6B an increase of FOXO1 and a decrease of ESR1. Overall, our data show that HHV-6A and -6B infections have a remarkable effect on the expression of miRNAs and transcription factors, which might be important in the induction of NK cell function impairment, virus escape strategies and related pathologies.
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Affiliation(s)
- Roberta Rizzo
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Irene Soffritti
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Maria D'Accolti
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Daria Bortolotti
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Dario Di Luca
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Elisabetta Caselli
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
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27
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Beyer S, Fleming J, Meng W, Singh R, Haque SJ, Chakravarti A. The Role of miRNAs in Angiogenesis, Invasion and Metabolism and Their Therapeutic Implications in Gliomas. Cancers (Basel) 2017; 9:cancers9070085. [PMID: 28698530 PMCID: PMC5532621 DOI: 10.3390/cancers9070085] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 07/01/2017] [Accepted: 07/03/2017] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs (miRNAs) are small, non-coding, endogenous RNA molecules that function in gene silencing by post-transcriptional regulation of gene expression. The dysregulation of miRNA plays a pivotal role in cancer tumorigenesis, including the development and progression of gliomas. Their small size, stability and ability to target multiple oncogenes have simultaneously distinguished miRNAs as attractive candidates for biomarkers and novel therapeutic targets for glioma patients. In this review, we summarize the most frequently cited miRNAs known to contribute to gliomagenesis and progression by regulating the defining hallmarks of gliomas, including angiogenesis, invasion, and cell metabolism. We also discuss their promising potential as prognostic and predictive biomarkers and novel therapeutic targets, in addition to the challenges that must be overcome before their translation from bench to bedside.
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Affiliation(s)
- Sasha Beyer
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - Jessica Fleming
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - Wei Meng
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - Rajbir Singh
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - S Jaharul Haque
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
| | - Arnab Chakravarti
- Department of Radiation Oncology, the Ohio State University Comprehensive Cancer Center & Arthur, G. James Cancer Hospital, Columbus, OH 43012, USA.
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28
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Abstract
MicroRNAs (miRNAs) are crucial post-transcriptional regulators of haematopoietic cell fate decisions. They act by negatively regulating the expression of key immune development genes, thus contributing important logic elements to the regulatory circuitry. Deletion studies have made it increasingly apparent that they confer robustness to immune cell development, especially under conditions of environmental stress such as infectious challenge and ageing. Aberrant expression of certain miRNAs can lead to pathological consequences, such as autoimmunity and haematological cancers. In this Review, we discuss the mechanisms by which several miRNAs influence immune development and buffer normal haematopoietic output, first at the level of haematopoietic stem cells, then in innate and adaptive immune cells. We then discuss the pathological consequences of dysregulation of these miRNAs.
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29
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Rady M, Watzl C, Claus M, Khorshid O, Mahran L, Abou-Aisha K. Altered expression of miR-181a and miR-146a does not change the expression of surface NCRs in human NK cells. Sci Rep 2017; 7:41381. [PMID: 28145491 PMCID: PMC5286401 DOI: 10.1038/srep41381] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 12/19/2016] [Indexed: 01/05/2023] Open
Abstract
MicroRNAs (miRNAs) play an important role in regulating gene expression and immune responses. Of interest, miR-181a and miR-146a are key players in regulating immune responses and are among the most abundant miRNAs expressed in NK cells. Bioinformatically, we predicted miR-181a to regulate the expression of the natural cytotoxicity receptor NCR2 by seeded interaction with the 3′-untranslated region (3′-UTR). Whereas, miR-146a expression was not significantly different (P = 0.7361), miR-181a expression was, on average 10-fold lower in NK cells from breast cancer patients compared to normal subjects; P < 0.0001. Surface expression of NCR2 was detected in NK cells from breast cancer patients (P = 0.0384). While cytokine receptor-induced NK cell activation triggered overexpression of miR-146a when stimulated with IL-2 (P = 0.0039), IL-15 (P = 0.0078), and IL-12/IL-18 (P = 0.0072), expression of miR-181a was not affected. Overexpression or knockdown of miR-181a or miR-146a in primary cultured human NK cells did not affect the level of expression of any of the three NCRs; NCR1, NCR2 or NCR3 or NK cell cytotoxicity. Expression of miR-181a and miR-146a did not correlate to the expression of the NCRs in NK cells from breast cancer patients or cytokine-stimulated NK cells from healthy subjects.
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Affiliation(s)
- Mona Rady
- Microbiology and Immunology Department, German University in Cairo (GUC), New Cairo, Egypt
| | - Carsten Watzl
- Immunology Department, Leibniz Research Center for Working Environment and Human Factors (IfADo), Dortmund, Germany
| | - Maren Claus
- Immunology Department, Leibniz Research Center for Working Environment and Human Factors (IfADo), Dortmund, Germany
| | - Ola Khorshid
- Medical Oncology Department, National Cancer Institute (NCI), Cairo, Egypt
| | - Laila Mahran
- Pharmacology and Toxicology Department, German University in Cairo (GUC), New Cairo, Egypt
| | - Khaled Abou-Aisha
- Microbiology and Immunology Department, German University in Cairo (GUC), New Cairo, Egypt
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30
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Tarazona R, Sanchez-Correa B, Casas-Avilés I, Campos C, Pera A, Morgado S, López-Sejas N, Hassouneh F, Bergua JM, Arcos MJ, Bañas H, Casado JG, Durán E, Labella F, Solana R. Immunosenescence: limitations of natural killer cell-based cancer immunotherapy. Cancer Immunol Immunother 2017; 66:233-245. [PMID: 27530271 PMCID: PMC11029053 DOI: 10.1007/s00262-016-1882-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/04/2016] [Indexed: 12/20/2022]
Abstract
Cancer is primarily considered a disease of old age. Immunosenescence refers to the age-associated changes in the immune system, and its contribution to the increased risk of cancer in old individuals has been discussed for many years. Natural killer (NK) cells are cytotoxic innate immune cells specialized in defence against tumour and virus-infected cells. NK cell cytotoxicity is the result of a fine balance between activating and inhibitory receptors. Several activating receptors have been identified that recognize different ligands frequently found over-expressed on tumour cells or virus-infected cells. The most important NK cell inhibitory receptors interact with major histocompatibility complex class I molecules expressed on almost all nucleated cells preventing NK cell-mediated lysis of healthy cells. NK cell immunosenescence is characterized by a redistribution of NK cell subsets, a diminished expression of several activating receptors and lower per-cell cytotoxicity. Altered expression of activating receptors has also been described in young and elderly cancer patients probably due to chronic exposure to ligands on tumour cells. Thus, the effect of both age and cancer may act synergistically to diminish NK cell-mediated tumour immunosurveillance. Different strategies harnessing the power of NK cells to target tumour cells have been designed including adoptive therapy with autologous or allogeneic expanded NK cells. In addition, checkpoint blockade of inhibitory receptors and the use of agonist antibodies to stimulate activating receptors are emerging areas of research. In this context, the effect of immunosenescence should be considered to improve the efficiency of cancer immunotherapy.
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Affiliation(s)
| | | | | | - Carmen Campos
- IMIBIC - Reina Sofia University Hospital - University of Cordoba, REIPI, Córdoba, Spain
| | - Alejandra Pera
- IMIBIC - Reina Sofia University Hospital - University of Cordoba, REIPI, Córdoba, Spain
- Brighton and Sussex Medical School, University of Sussex, Brighton, UK
| | - Sara Morgado
- Immunology Unit, University of Extremadura, Cáceres, Spain
| | - Nelson López-Sejas
- IMIBIC - Reina Sofia University Hospital - University of Cordoba, REIPI, Córdoba, Spain
| | - Fakhri Hassouneh
- IMIBIC - Reina Sofia University Hospital - University of Cordoba, REIPI, Córdoba, Spain
| | - Juan M Bergua
- Department of Haematology, Hospital San Pedro de Alcantara, Cáceres, Spain
| | - Maria Jose Arcos
- Department of Haematology, Hospital San Pedro de Alcantara, Cáceres, Spain
| | - Helena Bañas
- Department of Haematology, Hospital San Pedro de Alcantara, Cáceres, Spain
| | - Javier G Casado
- Immunology Unit, University of Extremadura, Cáceres, Spain
- Stem Cell Therapy Unit, Minimally Invasive Surgery Centre Jesus Uson, Cáceres, Spain
| | - Esther Durán
- Histology and Pathology Unit, Faculty of Veterinary, University of Extremadura, Cáceres, Spain
| | - Fernando Labella
- IMIBIC - Reina Sofia University Hospital - University of Cordoba, REIPI, Córdoba, Spain
| | - Rafael Solana
- IMIBIC - Reina Sofia University Hospital - University of Cordoba, REIPI, Córdoba, Spain.
- Department of Immunology, Facultad de Medicina Universidad de Córdoba, Avenida de Menéndez Pidal s/n, 14004, Córdoba, Spain.
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31
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Wałajtys-Rode E, Dzik JM. Monocyte/Macrophage: NK Cell Cooperation-Old Tools for New Functions. Results Probl Cell Differ 2017; 62:73-145. [PMID: 28455707 DOI: 10.1007/978-3-319-54090-0_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Monocyte/macrophage and natural killer (NK) cells are partners from a phylogenetic standpoint of innate immune system development and its evolutionary progressive interaction with adaptive immunity. The equally conservative ways of development and differentiation of both invertebrate hemocytes and vertebrate macrophages are reviewed. Evolutionary conserved molecules occurring in macrophage receptors and effectors have been inherited by vertebrates after their common ancestor with invertebrates. Cytolytic functions of mammalian NK cells, which are rooted in immune cells of invertebrates, although certain NK cell receptors (NKRs) are mammalian new events, are characterized. Broad heterogeneity of macrophage and NK cell phenotypes that depends on surrounding microenvironment conditions and expression profiles of specific receptors and activation mechanisms of both cell types are discussed. The particular tissue specificity of macrophages and NK cells, as well as their plasticity and mechanisms of their polarization to different functional subtypes have been underlined. The chapter summarized studies revealing the specific molecular mechanisms and regulation of NK cells and macrophages that enable their highly specific cross-cooperation. Attention is given to the evolving role of human monocyte/macrophage and NK cell interaction in pathogenesis of hypersensitivity reaction-based disorders, including autoimmunity, as well as in cancer surveillance and progression.
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Affiliation(s)
- Elżbieta Wałajtys-Rode
- Faculty of Chemistry, Department of Drug Technology and Biotechnology, Warsaw University of Technology, Noakowskiego 3 Str, 00-664, Warsaw, Poland.
| | - Jolanta M Dzik
- Faculty of Agriculture and Biology, Department of Biochemistry, Warsaw University of Life Sciences-SGGW, Warsaw, Poland
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32
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Ti D, Hao H, Fu X, Han W. Mesenchymal stem cells-derived exosomal microRNAs contribute to wound inflammation. SCIENCE CHINA-LIFE SCIENCES 2016; 59:1305-1312. [PMID: 27864711 DOI: 10.1007/s11427-016-0240-4] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 10/16/2016] [Indexed: 12/23/2022]
Abstract
Clinical and experimental studies have highlighted the significance of inflammation in coordinating wound repair and regeneration. However, it remains challenging to control the inflammatory response and tolerance at systemic levels without causing toxicity to injured tissues. Mesenchymal stem cells (MSCs) possess potent immunomodulatory properties and facilitate tissue repair by releasing exosomes, which generate a suitable microenvironment for inflammatory resolution. Exosomes contain several effective bioactive molecules and act as a cell-cell communication vehicle to influence cellular activities in recipient cells. During this process, the horizontal transfer of exosomal microRNAs (miRNAs) to acceptor cells, where they regulate target gene expression, is of particular interest for understanding the basic biology of inflammation ablation, tissue homeostasis, and development of therapeutic approaches. In this review, we describe a signature of three specific miRNAs (miR-21, miR-146a, and miR-181) present in human umbilical cord MSC-derived exosomes (MSC-EXO) identified microarray chip analysis and focus on the inflammatory regulatory functions of these immune-related miRNAs. We also discuss the potential mechanisms contributing to the resolution of wound inflammation and tissue healing.
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Affiliation(s)
- Dongdong Ti
- Institute of Basic Medicine, College of Life Sciences, Chinese PLA General Hospital, Beijing, 100853, China
| | - Haojie Hao
- Institute of Basic Medicine, College of Life Sciences, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xiaobing Fu
- Institute of Basic Medicine, College of Life Sciences, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Weidong Han
- Institute of Basic Medicine, College of Life Sciences, Chinese PLA General Hospital, Beijing, 100853, China.
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33
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Zhang R, Ni F, Fu B, Wu Y, Sun R, Tian Z, Wei H. A long noncoding RNA positively regulates CD56 in human natural killer cells. Oncotarget 2016; 7:72546-72558. [PMID: 27713137 PMCID: PMC5341928 DOI: 10.18632/oncotarget.12466] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 09/28/2016] [Indexed: 02/06/2023] Open
Abstract
Natural killer (NK) cells are innate immune lymphocytes that play critical roles in host defense against viral infection and surveillance against malignant transformation. Long noncoding RNAs (lncRNAs) are important immune system regulators. Here, we analyzed human primary lymphocyte lncRNA expression profiles to identify NK-lncRNA signatures. We detected numerous novel NK-specific lncRNAs with potential roles in regulating human NK cell differentiation and function. Expression of lnc-CD56, an NK-specific lncRNA, was positively correlated with that of CD56, a classical human NK cell surface marker. We showed that lnc-CD56 may function as a positive regulator of CD56 in primary human NK cells and differentiated NK cells from human CD34+ hematopoietic progenitor cells. Our data provide an annotated human NK cell lncRNA expression catalog and demonstrate a key role for lncRNAs in NK cell biology.
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Affiliation(s)
- Ruya Zhang
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Science and Medical Center, University of Science and Technology of China, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China
| | - Fang Ni
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Science and Medical Center, University of Science and Technology of China, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China
- Department of Pathophysiology, Anhui Medical University, Hefei, Anhui, China
| | - Binqing Fu
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Science and Medical Center, University of Science and Technology of China, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China
| | - Yang Wu
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Science and Medical Center, University of Science and Technology of China, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China
| | - Rui Sun
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Science and Medical Center, University of Science and Technology of China, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China
| | - Zhigang Tian
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Science and Medical Center, University of Science and Technology of China, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China
| | - Haiming Wei
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Science and Medical Center, University of Science and Technology of China, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China
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Olivieri F, Albertini MC, Orciani M, Ceka A, Cricca M, Procopio AD, Bonafè M. DNA damage response (DDR) and senescence: shuttled inflamma-miRNAs on the stage of inflamm-aging. Oncotarget 2016; 6:35509-21. [PMID: 26431329 PMCID: PMC4742121 DOI: 10.18632/oncotarget.5899] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/17/2015] [Indexed: 12/31/2022] Open
Abstract
A major issue in aging research is how cellular phenomena affect aging at the systemic level. Emerging evidence suggests that DNA damage response (DDR) signaling is a key mechanism linking DNA damage accumulation, cell senescence, and organism aging. DDR activation in senescent cells promotes acquisition of a proinflammatory secretory phenotype (SASP), which in turn elicits DDR and SASP activation in neighboring cells, thereby creating a proinflammatory environment extending at the local and eventually the systemic level. DDR activation is triggered by genomic lesions as well as emerging bacterial and viral metagenomes. Therefore, the buildup of cells with an activated DDR probably fuels inflamm-aging and predisposes to the development of the major age-related diseases (ARDs). Micro (mi)-RNAs - non-coding RNAs involved in gene expression modulation - are released locally and systemically by a variety of shuttles (exosomes, lipoproteins, proteins) that likely affect the efficiency of their biological effects. Here we suggest that some miRNAs, previously found to be associated with inflammation and senescence - miR-146, miR-155, and miR-21 - play a central role in the interplay among DDR, cell senescence and inflamm-aging. The identification of the functions of shuttled senescence-associated miRNAs is expected to shed light on the aging process and on how to delay ARD development.
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Affiliation(s)
- Fabiola Olivieri
- Department of Clinical and Molecular Sciences (DISCLIMO), Università Politecnica delle Marche, Ancona, Italy.,Center of Clinical Pathology and Innovative Therapy, Italian National Research Center on Aging, INRCA-IRCCS, Ancona, Italy
| | - Maria Cristina Albertini
- Department of Biomolecular Sciences, Biochemistry and Molecular Biology, Università degli Studi di Urbino "Carlo Bo", Urbino, Italy
| | - Monia Orciani
- Department of Clinical and Molecular Sciences (DISCLIMO), Università Politecnica delle Marche, Ancona, Italy
| | - Artan Ceka
- Department of Clinical and Molecular Sciences (DISCLIMO), Università Politecnica delle Marche, Ancona, Italy
| | - Monica Cricca
- Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, Bologna, Italy
| | - Antonio Domenico Procopio
- Department of Clinical and Molecular Sciences (DISCLIMO), Università Politecnica delle Marche, Ancona, Italy.,Center of Clinical Pathology and Innovative Therapy, Italian National Research Center on Aging, INRCA-IRCCS, Ancona, Italy
| | - Massimiliano Bonafè
- Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, Bologna, Italy
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35
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Park JH, Theodoratou E, Calin GA, Shin JI. From cell biology to immunology: Controlling metastatic progression of cancer via microRNA regulatory networks. Oncoimmunology 2016; 5:e1230579. [PMID: 27999740 DOI: 10.1080/2162402x.2016.1230579] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/23/2016] [Accepted: 08/25/2016] [Indexed: 12/12/2022] Open
Abstract
Recently, the study of microRNAs has expanded our knowledge of the fundamental processes of cancer biology and the underlying mechanisms behind tumor metastasis. Extensive research in the fields of microRNA and its novel mechanisms of actions against various cancers has more recently led to the trial of a first cancer-targeted microRNA drug, MRX34. Yet, these microRNAs are mostly being studied and clinically trialed solely based on the understanding of their cell biologic effects, thus, neglecting the important immunologic effects that are sometimes opposite of the cell biologic effects. Here, we summarize both the cell biologic and immunologic effects of various microRNAs and discuss the importance of considering both effects before using them in clinical settings. We stress the importance of understanding the miRNA's effect on cancer metastasis from a "systems" perspective before developing a miRNA-targeted therapeutic in treating cancer metastasis.
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Affiliation(s)
- Jae Hyon Park
- Yonsei University, College of Medicine , Seoul, Republic of Korea
| | - Evropi Theodoratou
- Usher Institute of Population Health and Informatics, University of Edinburgh , Edinburgh, UK
| | - George A Calin
- MD Anderson Cancer Center, University of Texas , Houston, TX, USA
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Severance Children's Hospital , Seoul, Republic of Korea
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36
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Youness RA, Rahmoon MA, Assal RA, Gomaa AI, Hamza MT, Waked I, El Tayebi HM, Abdelaziz AI. Contradicting interplay between insulin-like growth factor-1 and miR-486-5p in primary NK cells and hepatoma cell lines with a contemporary inhibitory impact on HCC tumor progression. Growth Factors 2016; 34:128-40. [PMID: 27388576 DOI: 10.1080/08977194.2016.1200571] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this study, an impaired natural killer (NK) cell cytolytic activity in 135 hepatocellular carcinoma (HCC) patients parallel to a reduced expression level of insulin-like growth factor (IGF)-1 in NK cells of HCC patients has been revealed. Ectopic expression of miR-486-5p, a direct upstream regulator of IGF-1, restored the endogenous level of IGF-1 in NK cells of HCC patients, thus augmenting its cytolytic activity against Huh7 cells in an opposite manner to the IGF-1 siRNAs. Unorthodoxly, over-expression of miR-486-5p in target hepatocytes resulted in the repression of IGF-1, suppression of Huh7 cells proliferation and viability in a similar pattern to the IGF-1 siRNAs. Therefore, this study highlights a potential role of IGF-1 in modulating cytolytic potential of NK cells of HCC patients. miR-486-5p acts in a cell-specific manner, differentially modulating IGF-1 expression in NK cells and their target hepatocytes with a contemporary inhibitory impact on HCC progression.
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Affiliation(s)
- Rana Ahmed Youness
- a Department of Pharmaceutical Biology , Faculty of Pharmacy and Biotechnology, German University in Cairo , Cairo , Egypt
| | - Mai Atef Rahmoon
- a Department of Pharmaceutical Biology , Faculty of Pharmacy and Biotechnology, German University in Cairo , Cairo , Egypt
| | - Reem Amr Assal
- b Department of Pharmacology and Toxicology , Faculty of Pharmacy and Biotechnology, German University in Cairo , Cairo , Egypt
| | - Asmaa Ibrahim Gomaa
- c Department of Hepatology , National Liver Institute, Menoufiya University , Shebin El-Kom , Egypt
| | - Mohamed Tarif Hamza
- d Department of Clinical Pathology , Ain Shams University , Cairo , Egypt , and
| | - Imam Waked
- c Department of Hepatology , National Liver Institute, Menoufiya University , Shebin El-Kom , Egypt
| | - Hend Mohamed El Tayebi
- b Department of Pharmacology and Toxicology , Faculty of Pharmacy and Biotechnology, German University in Cairo , Cairo , Egypt
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37
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Paladini L, Fabris L, Bottai G, Raschioni C, Calin GA, Santarpia L. Targeting microRNAs as key modulators of tumor immune response. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:103. [PMID: 27349385 PMCID: PMC4924278 DOI: 10.1186/s13046-016-0375-2] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/13/2016] [Indexed: 02/08/2023]
Abstract
The role of immune response is emerging as a key factor in the complex multistep process of cancer. Tumor microenvironment contains different types of immune cells, which contribute to regulate the fine balance between anti and protumor signals. In this context, mechanisms of crosstalk between cancer and immune cells remain to be extensively elucidated. Interestingly, microRNAs (miRNAs) have been demonstrated to function as crucial regulators of immune response in both physiological and pathological conditions. Specifically, different miRNAs have been reported to have a role in controlling the development and the functions of tumor-associated immune cells. This review aims to describe the most important miRNAs acting as critical modulators of immune response in the context of different solid tumors. In particular, we discuss recent studies that have demonstrated the existence of miRNA-mediated mechanisms regulating the recruitment and the activation status of specific tumor-associated immune cells in the tumor microenvironment. Moreover, various miRNAs have been found to target key cancer-related immune pathways, which concur to mediate the secretion of immunosuppressive or immunostimulating factors by cancer or immune cells. Modalities of miRNA exchange and miRNA-based delivery strategies are also discussed. Based on these findings, the modulation of individual or multiple miRNAs has the potential to enhance or inhibit specific immune subpopulations supporting antitumor immune responses, thus contributing to negatively affect tumorigenesis. New miRNA-based strategies can be developed for more effective immunotherapeutic interventions in cancer.
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Affiliation(s)
- Laura Paladini
- Oncology Experimental Therapeutics Unit, IRCCS Humanitas Clinical and Research Institute, Rozzano-Milan, Italy
| | - Linda Fabris
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Giulia Bottai
- Oncology Experimental Therapeutics Unit, IRCCS Humanitas Clinical and Research Institute, Rozzano-Milan, Italy
| | - Carlotta Raschioni
- Oncology Experimental Therapeutics Unit, IRCCS Humanitas Clinical and Research Institute, Rozzano-Milan, Italy
| | - George A Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Libero Santarpia
- Oncology Experimental Therapeutics Unit, IRCCS Humanitas Clinical and Research Institute, Rozzano-Milan, Italy.
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38
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Liu X, Li J, Qin F, Dai S. miR-152 as a tumor suppressor microRNA: Target recognition and regulation in cancer. Oncol Lett 2016; 11:3911-3916. [PMID: 27313716 DOI: 10.3892/ol.2016.4509] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 03/01/2016] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRNAs or miRs) are endogenous translation repressors of protein-coding genes that act by binding to the 3'-untranslated region of their target genes, and may contribute to tumorigenesis by functioning as oncogenes or tumor suppressor genes. miR-152, a member of the miR-148/152 family, is aberrantly expressed in various diseases, including various types of cancer. A growing body of evidence has demonstrated that miR-152 may act as a tumor suppressor gene by regulating its target genes, which are associated with cell proliferation, migration and invasion in human cancer. In the present review, the gene structure and functions of miR-152 are discussed, and in particular, its regulatory mechanism, experimentally validated targets and tumor suppressor role in cancer, are highlighted.
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Affiliation(s)
- Xuexiang Liu
- Department of Laboratory Science, The Fourth Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi 545005, P.R. China
| | - Jinwan Li
- Department of Laboratory Science, The Fourth Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi 545005, P.R. China
| | - Fengxian Qin
- Department of Laboratory Science, The Fourth Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi 545005, P.R. China
| | - Shengming Dai
- Department of Laboratory Science, The Fourth Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi 545005, P.R. China
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39
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Xiong P, Sang HW, Zhu M. Critical roles of co-activation receptor DNAX accessory molecule-1 in natural killer cell immunity. Immunology 2015; 146:369-78. [PMID: 26235210 DOI: 10.1111/imm.12516] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 07/28/2015] [Accepted: 07/28/2015] [Indexed: 12/19/2022] Open
Abstract
Natural killer (NK) cells, which can exert early and powerful anti-tumour and anti-viral responses, are important components of the innate immune system. DNAX accessory molecule-1 (DNAM-1) is an activating receptor molecule expressed on the surface of NK cells. Recent findings suggest that DNAM-1 is a critical regulator of NK cell biology. DNAM-1 is involved in NK cell education and differentiation, and also plays a pivotal role in the development of cancer, viral infections and immune-related diseases. However, tumours and viruses have developed multiple mechanisms to evade the immune system. They are able to impair DNAM-1 activity by targeting the DNAM-1 receptor-ligand system. We have reviewed the roles of DNAM-1, and its biological functions, with respect to NK cell biology and DNAM-1 chimeric antigen receptor-based immunotherapy.
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Affiliation(s)
- Peng Xiong
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hai-Wei Sang
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Zhu
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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40
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Sullivan RP, Leong JW, Schneider SE, Ireland AR, Berrien-Elliott MM, Singh A, Schappe T, Jewell BA, Sexl V, Fehniger TA. MicroRNA-15/16 Antagonizes Myb To Control NK Cell Maturation. THE JOURNAL OF IMMUNOLOGY 2015; 195:2806-17. [PMID: 26268657 DOI: 10.4049/jimmunol.1500949] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 07/15/2015] [Indexed: 01/08/2023]
Abstract
NK cells develop in the bone marrow and complete their maturation in peripheral organs, but the molecular events controlling maturation are incompletely understood. The miR-15/16 family of microRNA regulates key cellular processes and is abundantly expressed in NK cells. In this study, we identify a critical role for miR-15/16 in the normal maturation of NK cells using a mouse model of NK-specific deletion, in which immature NK cells accumulate in the absence of miR-15/16. The transcription factor c-Myb (Myb) is expressed preferentially by immature NK cells, is a direct target of miR-15/16, and is increased in 15a/16-1 floxed knockout NK cells. Importantly, maturation of 15a/16-1 floxed knockout NK cells was rescued by Myb knockdown. Moreover, Myb overexpression in wild-type NK cells caused a defective NK cell maturation phenotype similar to deletion of miR-15/16, and Myb overexpression enforces an immature NK cell transcriptional profile. Thus, miR-15/16 regulation of Myb controls the NK cell maturation program.
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Affiliation(s)
- Ryan P Sullivan
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Jeffrey W Leong
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Stephanie E Schneider
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Aaron R Ireland
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Melissa M Berrien-Elliott
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Anvita Singh
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Timothy Schappe
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Brea A Jewell
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; and
| | - Veronika Sexl
- Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Vienna 1210, Austria
| | - Todd A Fehniger
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110; and
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41
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Cheng YQ, Ren JP, Zhao J, Wang JM, Zhou Y, Li GY, Moorman JP, Yao ZQ. MicroRNA-155 regulates interferon-γ production in natural killer cells via Tim-3 signalling in chronic hepatitis C virus infection. Immunology 2015; 145:485-97. [PMID: 25772938 DOI: 10.1111/imm.12463] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 02/20/2015] [Accepted: 03/11/2015] [Indexed: 12/17/2022] Open
Abstract
Host immune responses must be tightly regulated by an intricate balance between positive and negative signals while fighting pathogens; persistent pathogens may usurp these regulatory mechanisms to dampen host immunity to facilitate survival in vivo. Here we report that Tim-3, a negative signalling molecule expressed on monocytes and T cells, is up-regulated on natural killer (NK) cells in individuals chronically infected with hepatitis C virus (HCV). Additionally, the transcription factor T-bet was also found to be up-regulated and associated with Tim-3 expression in NK cells during chronic HCV infection. MicroRNA-155 (miR-155), an miRNA that inhibits signalling proteins involved in immune responses, was down-regulated in NK cells by HCV infection. This Tim-3/T-bet over-expression and miR-155 inhibition were recapitulated in vitro by incubating primary NK cells or NK92 cell line with Huh-7 hepatocytes expressing HCV. Reconstitution of miR-155 in NK cells from HCV-infected patients led to a decrease in T-bet/Tim-3 expression and an increase in interferon-γ production. Blocking Tim-3 signalling also enhanced interferon-γ production in NK cells by improving signal transducer and activator of transcription-5 phosphorylation. These data indicate that HCV-induced, miR-155-regulated Tim-3 expression regulates NK cell function, suggesting a novel mechanism for balancing immune clearance and immune injury during chronic viral infection.
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Affiliation(s)
- Yong Q Cheng
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA.,International Centre for Diagnosis and Treatment of Liver Diseases, Beijing, China
| | - Jun P Ren
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA
| | - Juan Zhao
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA
| | - Jia M Wang
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA.,Department of Biochemistry and Molecular Biology, Soochow University School of Medicine, Suzhou, China
| | - Yun Zhou
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA.,Centre of Diagnosis and Treatment for Infectious Diseases of Chinese PLA, Tangdu Hospital, Fourth Military Medical University, Xian, China
| | - Guang Y Li
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA
| | - Jonathan P Moorman
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA.,HCV/HIV Program, James H. Quillen VA Medical Center, Johnson City, TN, USA
| | - Zhi Q Yao
- Center for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA.,HCV/HIV Program, James H. Quillen VA Medical Center, Johnson City, TN, USA
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42
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Ishida Y, Zhao D, Ohkuchi A, Kuwata T, Yoshitake H, Yuge K, Takizawa T, Matsubara S, Suzuki M, Saito S, Takizawa T. Maternal peripheral blood natural killer cells incorporate placenta-associated microRNAs during pregnancy. Int J Mol Med 2015; 35:1511-24. [PMID: 25824636 PMCID: PMC4432927 DOI: 10.3892/ijmm.2015.2157] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Accepted: 03/27/2015] [Indexed: 12/28/2022] Open
Abstract
Although recent studies have demonstrated that microRNAs (miRNAs or miRs) regulate fundamental natural killer (NK) cellular processes, including cytotoxicity and cytokine production, little is known about the miRNA-gene regulatory relationships in maternal peripheral blood NK (pNK) cells during pregnancy. In the present study, to determine the roles of miRNAs within gene regulatory networks of maternal pNK cells, we performed comprehensive miRNA and gene expression profiling of maternal pNK cells using a combination of reverse transcription quantitative PCR (RT-qPCR)-based miRNA array and DNA microarray analyses and analyzed the differential expression levels between first- and third-trimester pNK cells. Furthermore, we constructed regulatory networks for miRNA-mediated gene expression in pNK cells during pregnancy by Ingenuity Pathway Analysis (IPA). PCR-based array analysis revealed that the placenta-derived miRNAs [chromosome 19 miRNA cluster (C19MC) miRNAs] were detected in pNK cells during pregnancy. Twenty-five miRNAs, including six C19MC miRNAs, were significantly upregulated in the third- compared to first-trimester pNK cells. The rapid clearance of C19MC miRNAs also occurred in the pNK cells following delivery. Nine miRNAs, including eight C19MC miRNAs, were significantly downregulated in the post-delivery pNK cells compared to those of the third-trimester. DNA microarray analysis identified 69 NK cell function-related genes that were differentially expressed between the first- and third-trimester pNK cells. On pathway and network analysis, the observed gene expression changes of pNK cells likely contribute to the increase in the cytotoxicity, as well as the cell cycle progression of third- compared to first-trimester pNK cells. Thirteen of the 69 NK cell function-related genes were significantly down-regulated between the first- and third-trimester pNK cells. Nine of the 13 downregulated NK-function-associated genes were in silico target candidates of 12 upregulated miRNAs, including C19MC miRNA miR-512-3p. The results of this study suggest that the transfer of placental C19MC miRNAs into maternal pNK cells occurs during pregnancy. The present study provides new insight into maternal NK cell functions.
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Affiliation(s)
- Yoichi Ishida
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329‑0498, Japan
| | - Dongwei Zhao
- Department of Molecular Medicine and Anatomy, Graduate School of Medicine, Nippon Medical School, Tokyo 113‑8602, Japan
| | - Akihide Ohkuchi
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329‑0498, Japan
| | - Tomoyuki Kuwata
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329‑0498, Japan
| | - Hiroshi Yoshitake
- Department of Molecular Medicine and Anatomy, Graduate School of Medicine, Nippon Medical School, Tokyo 113‑8602, Japan
| | - Kazuya Yuge
- Department of Molecular Medicine and Anatomy, Graduate School of Medicine, Nippon Medical School, Tokyo 113‑8602, Japan
| | - Takami Takizawa
- Department of Molecular Medicine and Anatomy, Graduate School of Medicine, Nippon Medical School, Tokyo 113‑8602, Japan
| | - Shigeki Matsubara
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329‑0498, Japan
| | - Mitsuaki Suzuki
- Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi 329‑0498, Japan
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama 930‑0194, Japan
| | - Toshihiro Takizawa
- Department of Molecular Medicine and Anatomy, Graduate School of Medicine, Nippon Medical School, Tokyo 113‑8602, Japan
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43
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Leong JW, Sullivan RP, Fehniger TA. microRNA management of NK-cell developmental and functional programs. Eur J Immunol 2014; 44:2862-8. [PMID: 25142111 DOI: 10.1002/eji.201444798] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 07/31/2014] [Accepted: 08/14/2014] [Indexed: 12/21/2022]
Abstract
NK cells are innate lymphoid cells that are critical for host defense against infection, and mediate anti-tumor responses. MicroRNAs (miRNAs) are a large family of small noncoding RNAs that target the 3' untranslated region (UTR) of mRNAs, thereby attenuating protein translation. The expression of miRNAs within human peripheral blood and mouse splenic NK cells has been cataloged, with the majority of the miRNA sequence pool represented in the top 60 most abundantly expressed miRNAs. Global miRNA deficiency within NK cells has confirmed their critical role in NK-cell biology, including defects in NK-cell development and altered functionality. Studies using gain- and loss-of-function of individual miRNAs in NK cells have demonstrated the role of specific miRNAs in regulating NK-cell development, maturation, and activation. miRNAs also regulate fundamental NK-cell processes including cytokine production, cytotoxicity, and proliferation. This review provides an update on the intrinsic miRNA regulation of NK cells, including miRNA expression profiles, as well as their impact on NK-cell biology. Additional profiling is needed to better understand miRNA expression within NK-cell developmental intermediates, subsets, tissues, and in the setting of disease. Furthermore, key open questions in the field as well as technical challenges in the study of miRNAs in NK cells are highlighted.
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Affiliation(s)
- Jeffrey W Leong
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
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44
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Sullivan RP, Fogel LA, Leong JW, Schneider SE, Wong R, Romee R, Thai TH, Sexl V, Matkovich SJ, Dorn GW, French AR, Fehniger TA. MicroRNA-155 tunes both the threshold and extent of NK cell activation via targeting of multiple signaling pathways. THE JOURNAL OF IMMUNOLOGY 2013; 191:5904-13. [PMID: 24227772 DOI: 10.4049/jimmunol.1301950] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
NK cells are innate lymphocytes important for host defense against viral infections and malignancy. However, the molecular programs orchestrating NK cell activation are incompletely understood. MicroRNA-155 (miR-155) is markedly upregulated following cytokine activation of human and mouse NK cells. Surprisingly, mature human and mouse NK cells transduced to overexpress miR-155, NK cells from mice with NK cell-specific miR-155 overexpression, and miR-155(-/-) NK cells all secreted more IFN-γ compared with controls. Investigating further, we found that activated NK cells with miR-155 overexpression had increased per-cell IFN-γ with normal IFN-γ(+) percentages, whereas greater percentages of miR-155(-/-) NK cells were IFN-γ(+). In vivo murine CMV-induced IFN-γ expression by NK cells in these miR-155 models recapitulated the in vitro phenotypes. We performed unbiased RNA-induced silencing complex sequencing on wild-type and miR-155(-/-) NK cells and found that mRNAs targeted by miR-155 were enriched in NK cell activation signaling pathways. Using specific inhibitors, we confirmed these pathways were mechanistically involved in regulating IFN-γ production by miR-155(-/-) NK cells. These data indicate that miR-155 regulation of NK cell activation is complex and that miR-155 functions as a dynamic tuner for NK cell activation via both setting the activation threshold as well as controlling the extent of activation in mature NK cells. In summary, miR-155(-/-) NK cells are more easily activated, through increased expression of proteins in the PI3K, NF-κB, and calcineurin pathways, and miR-155(-/-) and 155-overexpressing NK cells exhibit increased IFN-γ production through distinct cellular mechanisms.
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Affiliation(s)
- Ryan P Sullivan
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110
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45
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Affiliation(s)
- K Mark Ansel
- Sandler Asthma Basic Research Center, University of California San Francisco, San Francisco, CA, USA.
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46
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Baumjohann D, Ansel KM. MicroRNA-mediated regulation of T helper cell differentiation and plasticity. Nat Rev Immunol 2013; 13:666-78. [PMID: 23907446 PMCID: PMC3980848 DOI: 10.1038/nri3494] [Citation(s) in RCA: 284] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
CD4(+) T helper (TH) cells regulate appropriate cellular and humoral immune responses to a wide range of pathogens and are central to the success of vaccines. However, their dysregulation can cause allergies and autoimmune diseases. The CD4(+) T cell population is characterized not only by a range of distinct cell subsets, such as TH1, TH2 and TH17 cells, regulatory T cells and T follicular helper cells--each with specific functions and gene expression programmes--but also by plasticity between the different TH cell subsets. In this Review, we discuss recent advances and emerging ideas about how microRNAs--small endogenously expressed oligonucleotides that modulate gene expression--are involved in the regulatory networks that determine TH cell fate decisions and that regulate their effector functions.
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Affiliation(s)
- Dirk Baumjohann
- Department of Microbiology and Immunology, Sandler Asthma Basic Research Center, University of California, San Francisco, California 94143, USA
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Stage-specific regulation of natural killer cell homeostasis and response against viral infection by microRNA-155. Proc Natl Acad Sci U S A 2013; 110:6967-72. [PMID: 23572582 DOI: 10.1073/pnas.1304410110] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Natural killer (NK) cells function in the recognition and destruction of host cells infected with pathogens. Many regulatory mechanisms govern the potent responses of NK cells, both at the cellular and molecular level. Ablation of microRNA (miRNA) processing enzymes demonstrated that miRNAs play critical roles in NK cell differentiation and function; however, the role of individual miRNAs requires further investigation. Using mice containing a targeted deletion of microRNA-155 (miR-155), we observed defects in NK cell maintenance and maturation at steady state, as well as in homeostatic proliferation in lymphopenic mice. In addition, we discovered that miR-155 is up-regulated in activated NK cells during mouse cytomegalovirus (MCMV) infection in response to signals from the proinflammatory cytokines IL-12 and IL-18 and through signal transducer and activator of transcription 4 (STAT4) signaling. Although miR-155 was found to be dispensable for cytotoxicity and cytokine production when triggered through activating receptors, NK cells lacking miR-155 exhibited severely impaired effector and memory cell numbers in both lymphoid and nonlymphoid tissues after MCMV infection. We demonstrate that miR-155 differentially targets Noxa and suppressor of cytokine signaling 1 (SOCS1) in NK cells at distinct stages of homeostasis and activation. NK cells constitutively expressing Noxa and SOCS1 exhibit profound defects in expansion during the response to MCMV infection, suggesting that their regulation by miR-155 promotes antiviral immunity.
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