1
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Sánchez-Gloria JL, Carbó R, Buelna-Chontal M, Osorio-Alonso H, Henández-Díazcouder A, de la Fuente-León RL, Sandoval J, Sánchez F, Rubio-Gayosso I, Sánchez-Muñoz F. Cold exposure aggravates pulmonary arterial hypertension through increased miR-146a-5p, miR-155-5p and cytokines TNF-α, IL-1β, and IL-6. Life Sci 2021; 287:120091. [PMID: 34717910 DOI: 10.1016/j.lfs.2021.120091] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/15/2021] [Accepted: 10/21/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Cold temperatures can aggravate pulmonary diseases and promote pulmonary arterial hypertension (PAH); however, the underlying mechanism has not been fully explored. AIM To explore the effect of chronic cold exposure on the production of inflammatory cytokines and microRNAs (miRNAs) in a monocrotaline (MCT)-induced PAH model. METHODS Male Sprague Dawley rats were divided into a Control (23.5 ± 2 °C), Cold (5.0 ± 1 °C for ten days), MCT (60 mg/kg body weight i.p.), and MCT + Cold (ten days of cold exposure after 3 weeks of MCT injection). Hemodynamic parameters, right ventricle (RV) hypertrophy, and pulmonary arterial medial wall thickness were determined. IL-1β, IL-6, and TNF-α levels were determined using western blotting. miR-21-5p and -3p, miR-146a-5p and -3p, and miR-155-5p and -3p and plasma extracellular vesicles (EVs) and mRNA expression of Cd68, Cd163, Bmpr2, Smad5, Tgfbr2, and Smad3 were determined using RT-qPCR. RESULTS The MCT + Cold group had aggravated RV hypertrophy hemodynamic parameters, and pulmonary arterial medial wall thickness. In lungs of the MCT + Cold, group the protein levels of TNF-α, IL-1β, and IL-6 were higher than those in the MCT group. The mRNA expression of Cd68 and Cd163 were higher in the MCT + Cold group. miR-146a-5p and miR-155-5p levels were higher in the plasma EVs and lungs of the MCT + Cold group. Cold exposure promoted a greater decrease in miR-21-5p, Bmpr2, Smad5, Tgfbr2, and Smad3 mRNA expression in lungs of the MCT + Cold group. CONCLUSION Cold exposure aggravates MCT-induced PAH with an increase in inflammatory marker and miRNA levels in the plasma EVs and lungs.
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Affiliation(s)
- José L Sánchez-Gloria
- Sección de Estudios de posgrado, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico city 11340, Mexico; Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Mexico city 14080, Mexico
| | - Roxana Carbó
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Mexico city 14080, Mexico
| | - Mabel Buelna-Chontal
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Mexico city 14080, Mexico
| | - Horacio Osorio-Alonso
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología Ignacio Chávez, Mexico city 14080, Mexico
| | - Adrián Henández-Díazcouder
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Mexico city 14080, Mexico; Posgrado en Biología Experimental, Universidad Autónoma Metropolitana-Iztapalapa, Mexico city 09340, Mexico
| | | | - Julio Sandoval
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Mexico city 14080, Mexico
| | - Fausto Sánchez
- DPAA, Universidad Autónoma Metropolitana-Xochimilco, Mexico city 04960, Mexico
| | - I Rubio-Gayosso
- Sección de Estudios de posgrado, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico city 11340, Mexico
| | - Fausto Sánchez-Muñoz
- Sección de Estudios de posgrado, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico city 11340, Mexico; Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Mexico city 14080, Mexico.
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2
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Gokavi J, Sadawarte S, Shelke A, Kulkarni-Kale U, Thakar M, Saxena V. Inhibition of miR-155 Promotes TGF-β Mediated Suppression of HIV Release in the Cervical Epithelial Cells. Viruses 2021; 13:v13112266. [PMID: 34835072 PMCID: PMC8624372 DOI: 10.3390/v13112266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 11/06/2021] [Indexed: 12/12/2022] Open
Abstract
TGF-β has been shown to play a differential role in either restricting or aiding HIV infection in different cell types, however its role in the cervical cells is hitherto undefined. Among females, more than 80% of infections occur through heterosexual contact where cervicovaginal mucosa plays a critical role, however the early events during the establishment of infection at female genital mucosa are poorly understood. We earlier showed that increased TGF-β level has been associated with cervical viral shedding in the HIV infected women, however a causal relationship could not be examined. Therefore, here we first established an in vitro cell-associated model of HIV infection in the cervical epithelial cells (ME-180) and demonstrated that TGF-β plays an important role as a negative regulator of HIV release in the infected cervical epithelial cells. Inhibition of miR-155 upregulated TGF-β signaling and mRNA expression of host restriction factors such as APOBEC-3G, IFI-16 and IFITM-3, while decreased the HIV release in ME-180 cells. To conclude, this is the first study to decipher the complex interplay between TGF-β, miR-155 and HIV release in the cervical epithelial cells. Collectively, our data suggest the plausible role of TGF-β in promoting HIV latency in cervical epithelial cells which needs further investigations.
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Affiliation(s)
- Jyotsna Gokavi
- Division of Immunology and Serology, Indian Council of Medical Research-National AIDS Research Institute, MIDC, Bhosari, Pune 411026, India; (J.G.); (M.T.)
| | - Sharwari Sadawarte
- Bioinformatics Centre, Savitribai Phule Pune University, Pune 411007, India; (S.S.); (A.S.); or (U.K.-K.)
| | - Anant Shelke
- Bioinformatics Centre, Savitribai Phule Pune University, Pune 411007, India; (S.S.); (A.S.); or (U.K.-K.)
| | - Urmila Kulkarni-Kale
- Bioinformatics Centre, Savitribai Phule Pune University, Pune 411007, India; (S.S.); (A.S.); or (U.K.-K.)
| | - Madhuri Thakar
- Division of Immunology and Serology, Indian Council of Medical Research-National AIDS Research Institute, MIDC, Bhosari, Pune 411026, India; (J.G.); (M.T.)
| | - Vandana Saxena
- Division of Immunology and Serology, Indian Council of Medical Research-National AIDS Research Institute, MIDC, Bhosari, Pune 411026, India; (J.G.); (M.T.)
- Correspondence:
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3
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Onabajo OO, Lewis MG, Mattapallil JJ. GALT CD4 +PD-1 hi T follicular helper (Tfh) cells repopulate after anti-retroviral therapy. Cell Immunol 2021; 366:104396. [PMID: 34157462 DOI: 10.1016/j.cellimm.2021.104396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/15/2021] [Accepted: 06/11/2021] [Indexed: 11/26/2022]
Abstract
Human immunodeficiency virus (HIV) and simian immunodeficiency virus (SIV) infections are characterized by dramatic alterations in the mucosal CD4 T cell compartment. Though viremia is effectively suppressed, and peripheral CD4 T cell numbers recover to near healthy levels after highly active anti-retroviral therapy (HAART), some of the dysfunctional consequences of HIV infection continue to persist during therapy. We hypothesized that CD4 T follicular helper (Tfh) cell deficiencies may play a role in this process. Using the macaque model we show that SIV infection was associated with a significant loss of Tfh cells in the GALT that drain the mesentery lining the gastrointestinal tract (GIT). Loss of Tfh cells significantly correlated with the depletion of the overall memory CD4 T cell compartment; most Tfh cells in the GALT expressed a CD95+CD28+ memory phenotype suggesting that infection of the memory compartment likely drives the loss of GALT Tfh cells during infection. Continuous anti-retroviral therapy (cART) was accompanied by a significant repopulation of Tfh cells in the GALT to levels similar to those of uninfected animals. Repopulating Tfh cells displayed significantly higher capacity to produce IL-21 as compared to SIV infected animals suggesting that cART fully restores Tfh cells that are functionally capable of supporting GC reactions in the GALT.
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Affiliation(s)
- Olusegun O Onabajo
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA; Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD 20814, USA
| | | | - Joseph J Mattapallil
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA.
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4
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Blum FC, Hardy BL, Bishop-Lilly KA, Frey KG, Hamilton T, Whitney JB, Lewis MG, Merrell DS, Mattapallil JJ. Microbial Dysbiosis During Simian Immunodeficiency Virus Infection is Partially Reverted with Combination Anti-retroviral Therapy. Sci Rep 2020; 10:6387. [PMID: 32286417 PMCID: PMC7156522 DOI: 10.1038/s41598-020-63196-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/07/2020] [Indexed: 02/08/2023] Open
Abstract
Human immunodeficiency virus (HIV) infection is characterized by a massive loss of CD4 T cells in the gastrointestinal tract (GIT) that is accompanied by changes in the gut microbiome and microbial translocation that contribute to inflammation and chronic immune activation. Though highly active antiretroviral therapy (HAART) has led to better long-term outcomes in HIV infected patients, it has not been as effective at reverting pathogenesis in the GIT. Using the simian immunodeficiency virus (SIV) infection model, we show that combination antiretroviral therapy (c-ART) partially reverted microbial dysbiosis observed during SIV infection. Though the relative abundance of bacteria, their richness or diversity did not significantly differ between infected and treated animals, microbial dysbiosis was evident via multiple beta diversity metrics: Jaccard similarity coefficient, Bray-Curtis similarity coefficient, and Yue & Clayton theta similarity coefficient. Principal coordinates analysis (PCoA) clustered SIV-infected untreated animals away from healthy and treated animals that were clustered closely, indicating that c-ART partially reversed the gut dysbiosis associated with SIV infection. Metastats analysis identified specific operational taxonomic units (OTUs) falling within the Streptococcus, Prevotella, Acinetobacter, Treponema, and Lactobacillus genera that were differentially represented across the three groups. Our results suggest that complete viral suppression with c-ART could potentially revert microbial dysbiosis observed during SIV and HIV infections.
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Affiliation(s)
- Faith C Blum
- F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD, United States
| | - Britney L Hardy
- F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD, United States
| | - Kimberly A Bishop-Lilly
- Genomics & Bioinformatics Department, Naval Medical Research Center, Biological Defense Research Directorate, Fort Detrick, MD, United States
| | - Kenneth G Frey
- Genomics & Bioinformatics Department, Naval Medical Research Center, Biological Defense Research Directorate, Fort Detrick, MD, United States
| | - Theron Hamilton
- Genomics & Bioinformatics Department, Naval Medical Research Center, Biological Defense Research Directorate, Fort Detrick, MD, United States
| | - James B Whitney
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.,Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, United States
| | | | - D Scott Merrell
- F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD, United States.
| | - Joseph J Mattapallil
- F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD, United States.
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5
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Gender differences in innate responses and gene expression profiles in memory CD4 T cells are apparent very early during acute simian immunodeficiency virus infection. PLoS One 2019; 14:e0221159. [PMID: 31490965 PMCID: PMC6730907 DOI: 10.1371/journal.pone.0221159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 07/31/2019] [Indexed: 12/21/2022] Open
Abstract
Gender differences in Human immunodeficiency virus (HIV) disease progression and comorbidities have been extensively reported. Using the simian immunodeficiency virus (SIV) infected rhesus macaque model, we show that these differences are apparent very early during the course of infection. Though there were no major changes in the proportions of CD4 T cells or its subsets, central memory CD4 T cells from female macaques were found to differentially regulate a significantly larger number of genes at day 4 post-infection (PI) as compared to males. Pathway analysis revealed divergence of both canonical and biological pathways that persisted at day 10 PI. Changes in gene expression profiles were accompanied by a significant increase in plasma levels of pro-inflammatory mediators such as MCP-1/CCL2, I-TAC/CXCL11, and MIF. Though plasma levels of IFNα did not differ between male and female macaques, the expression levels of IFNα subtype-14, 16, IFNβ, and IFNω were significantly upregulated in the lymph nodes of female macaques at day 10 PI as compared to male macaques. Our results suggest that the pathogenic sequelae seen during chronic infection may be shaped by gender differences in immune responses induced very early during the course of HIV infection.
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6
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Lin J, Ma L, Zhang D, Gao J, Jin Y, Han Z, Lin D. Tumour biomarkers-Tracing the molecular function and clinical implication. Cell Prolif 2019; 52:e12589. [PMID: 30873683 PMCID: PMC6536410 DOI: 10.1111/cpr.12589] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 12/19/2018] [Accepted: 01/10/2019] [Indexed: 12/19/2022] Open
Abstract
In recent years, with the increase in cancer mortality caused by metastasis, and with the development of individualized and precise medical treatment, early diagnosis with precision becomes the key to decrease the death rate. Since detecting tumour biomarkers in body fluids is the most non‐invasive way to identify the status of tumour development, it has been widely investigated for the usage in clinic. These biomarkers include different expression or mutation in microRNAs (miRNAs), circulating tumour DNAs (ctDNAs), proteins, exosomes and circulating tumour cells (CTCs). In the present article, we summarized and discussed some updated research on these biomarkers. We overviewed their biological functions and evaluated their multiple roles in human and small animal clinical treatment, including diagnosis of cancers, classification of cancers, prognostic and predictive values for therapy response, monitors for therapy efficacy, and anti‐cancer therapeutics. Biomarkers including different expression or mutation in miRNAs, ctDNAs, proteins, exosomes and CTCs provide more choice for early diagnosis of tumour detection at early stage before metastasis. Combination detection of these tumour biomarkers may provide higher accuracy at the lowest molecule combination number for tumour early detection. Moreover, tumour biomarkers can provide valuable suggestions for clinical anti‐cancer treatment and execute monitoring of treatment efficiency.
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Affiliation(s)
- Jiahao Lin
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Lie Ma
- Department of Respiratory Disease, The Navy General Hospital of PLA, Beijing, China
| | - Di Zhang
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jiafeng Gao
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yipeng Jin
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Zhihai Han
- Department of Respiratory Disease, The Navy General Hospital of PLA, Beijing, China
| | - Degui Lin
- The Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, China
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7
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Wang B, Fu M, Liu Y, Wang Y, Li X, Cao H, Zheng SJ. gga-miR-155 Enhances Type I Interferon Expression and Suppresses Infectious Burse Disease Virus Replication via Targeting SOCS1 and TANK. Front Cell Infect Microbiol 2018; 8:55. [PMID: 29564226 PMCID: PMC5845882 DOI: 10.3389/fcimb.2018.00055] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 02/12/2018] [Indexed: 01/08/2023] Open
Abstract
Infectious bursal disease (IBD) is an acute, highly contagious, and immunosuppressive avian disease caused by IBD virus (IBDV). MicroRNAs (miRNAs) are involved in host-pathogen interactions and innate immune response to viral infection. However, the role of miRNAs in host response to IBDV infection is not clear. We report here that gga-miR-155 acts as an anti-virus host factor inhibiting IBDV replication. We found that transfection of DF-1 cells with gga-miR-155 suppressed IBDV replication, while blockage of the endogenous gga-miR-155 by inhibitors enhanced IBDV replication. Furthermore, our data showed that gga-miR-155 enhanced the expression of type I interferon in DF-1 cells post IBDV infection. Importantly, we found that gga-miR-155 enhanced type I interferon expression via targeting SOCS1 and TANK, two negative regulators of type I IFN signaling. These results indicate that gga-miR-155 plays a critical role in cell response to IBDV infection.
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Affiliation(s)
- Bin Wang
- State Key Laboratory of Agrobiotechnology and College of Veterinary Medicine, China Agricultural University, Beijing, China.,Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China.,Department of Preventive Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Mengjiao Fu
- State Key Laboratory of Agrobiotechnology and College of Veterinary Medicine, China Agricultural University, Beijing, China.,Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China.,Department of Preventive Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yanan Liu
- State Key Laboratory of Agrobiotechnology and College of Veterinary Medicine, China Agricultural University, Beijing, China.,Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China.,Department of Preventive Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yongqiang Wang
- State Key Laboratory of Agrobiotechnology and College of Veterinary Medicine, China Agricultural University, Beijing, China.,Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China.,Department of Preventive Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xiaoqi Li
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Hong Cao
- State Key Laboratory of Agrobiotechnology and College of Veterinary Medicine, China Agricultural University, Beijing, China.,Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China.,Department of Preventive Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Shijun J Zheng
- State Key Laboratory of Agrobiotechnology and College of Veterinary Medicine, China Agricultural University, Beijing, China.,Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China.,Department of Preventive Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
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8
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McGary CS, Alvarez X, Harrington S, Cervasi B, Ryan ES, Iriele RI, Paganini S, Harper J, Easley K, Silvestri G, Ansari AA, Lichterfeld M, Micci L, Paiardini M. The loss of CCR6 + and CD161 + CD4 + T-cell homeostasis contributes to disease progression in SIV-infected rhesus macaques. Mucosal Immunol 2017; 10:1082-1096. [PMID: 28051083 PMCID: PMC5474141 DOI: 10.1038/mi.2016.116] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 11/10/2016] [Indexed: 02/04/2023]
Abstract
Although previous studies have shown that CD4+ T cells expressing CCR6 and CD161 are depleted from blood during HIV infection, the mechanisms underlying their loss remain unclear. In this study, we investigated how the homeostasis of CCR6+ and CD161+ CD4+ T cells contributes to SIV disease progression and the mechanisms responsible for their loss from circulation. By comparing SIV infection in rhesus macaques (RMs) and natural host sooty mangabeys (SMs), we found that the loss of CCR6+ and CD161+ CD4+ T cells from circulation is a distinguishing feature of progressive SIV infection in RMs. Furthermore, while viral infection critically contributes to the loss of CD161+CCR6-CD4+ T cells, a redistribution of CCR6+CD161- and CCR6+CD161+CD4+ T cells from the blood to the rectal mucosa is a chief mechanism for their loss during SIV infection. Finally, we provide evidence that the accumulation of CCR6+CD4+ T cells in the mucosa is damaging to the host by demonstrating their reduction from this site following initiation of antiretroviral therapy in SIV-infected RMs and their lack of accumulation in SIV-infected SMs. These data emphasize the importance of maintaining CCR6+ and CD161+ CD4+ T-cell homeostasis, particularly in the mucosa, to prevent disease progression during pathogenic HIV/SIV infection.
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Affiliation(s)
- Colleen S. McGary
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - Xavier Alvarez
- Tulane National Primate Research Center, Tulane University School of Medicine, Covington, LA
| | - Sean Harrington
- Ragon Institute of Massachusetts General Hospital, MIT and Harvard, Cambridge, MA
| | - Barbara Cervasi
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - Emily S. Ryan
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - Robin I. Iriele
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - Sara Paganini
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - Justin Harper
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - Kirk Easley
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Atlanta, GA
| | - Guido Silvestri
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA
| | - Aftab A. Ansari
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA
| | - Mathias Lichterfeld
- Ragon Institute of Massachusetts General Hospital, MIT and Harvard, Cambridge, MA
| | - Luca Micci
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - Mirko Paiardini
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, GA
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA
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9
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miR-155 Inhibits Mouse Osteoblast Differentiation by Suppressing SMAD5 Expression. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1893520. [PMID: 28473977 PMCID: PMC5394354 DOI: 10.1155/2017/1893520] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/09/2017] [Accepted: 03/23/2017] [Indexed: 12/14/2022]
Abstract
Osteogenesis from preosteoblasts is important for bone tissue engineering. MicroRNAs are a class of endogenous small RNA molecules that potentially modulate osteogenesis. In this study, we found that miR-155 expression was downregulated in a time-dependent manner in cells of the preosteoblast cell line MC3T3-E1 after osteogenic induction using bone morphogenetic protein 2 (BMP2). Transfection with miR-155 decreased alkaline phosphatase (ALP) activity, ALP expression, and the staining intensity of Alizarin Red in MC3T3-E1 cells treated with BMP2, whereas treatment with miR-155 inhibitor promoted BMP2-induced osteoblast differentiation. The luciferase assay confirmed that miR-155 can bind to the 3′ untranslated region of SMAD5 mRNA. miR-155 transfection significantly decreased the expression of SMAD5 protein and mRNA in MC3T3-E1 cells under control media and the p-SMAD5 protein level during osteogenesis. After transfecting cells with the SMAD5 overexpression plasmids, the inhibitory effect of miR-155 on osteogenesis was significantly attenuated. In conclusion, miR-155 inhibited osteoblast differentiation by downregulating the translation of SMAD5 in mouse preosteoblast cells. Inhibition of miR-155 promoted osteogenic potential and thus it can be used as a potential target in the treatment of bone defects.
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10
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Zhao J, Chen C, Guo M, Tao Y, Cui P, Zhou Y, Qin N, Zheng J, Zhang J, Xu L. MicroRNA-7 Deficiency Ameliorates the Pathologies of Acute Lung Injury through Elevating KLF4. Front Immunol 2016; 7:389. [PMID: 27774091 PMCID: PMC5054040 DOI: 10.3389/fimmu.2016.00389] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 09/15/2016] [Indexed: 01/13/2023] Open
Abstract
Recent evidence showed that microRNA-7 (miR-7) played an important role in the pathologies of lung-related diseases. However, the potential role of miR-7 in acute lung injury (ALI) still remains poorly understood. Here, we assessed the effect of miR-7 deficiency on the pathology of ALI. We, first, found that the expression of miR-7 was upregulated in lung tissue in murine LPS-induced ALI model. Notably, we generated miR-7 knock down mice by using miRNA-Sponge technique and found that miR-7 deficiency could ameliorate the pathologies of lung as evidenced by accelerated body weight recovery, reduced level of bronchoalveolar lavage (BAL) proinflammatory cytokines and decreased number of BAL cells in ALI mice. Moreover, the proportion and number of various immune cells in BAL, including innate immune cell F4/80+ macrophages, γδT cells, NK1.1+ T cells, and CD11c+DCs, as well as adaptive immune cell CD4+ T cells and CD8+ T cells, also significantly changed, respectively. Mechanistic evidence showed that KLF4, a target molecule of miR-7, was upregulated in lung tissues in ALI model, accompanied by altered transduction of NF-κB, AKT, and ERK pathway. These data provided a previously unknown role of miR-7 in pathology of ALI, which could ultimately aid the understanding of development of ALI and the development of new therapeutic strategies against clinical inflammatory lung diseases.
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Affiliation(s)
- Juanjuan Zhao
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Chao Chen
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Mengmeng Guo
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Yijin Tao
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - PanPan Cui
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Ya Zhou
- Department of Medical Physics, Zunyi Medical College , Guizhou , China
| | - Nalin Qin
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Jing Zheng
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Jidong Zhang
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Lin Xu
- Department of Immunology, Zunyi Medical College , Guizhou , China
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11
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Liu Y, Sun J, Zhang H, Wang M, Gao GF, Li X. Ebola virus encodes a miR-155 analog to regulate importin-α5 expression. Cell Mol Life Sci 2016; 73:3733-44. [PMID: 27094387 PMCID: PMC11108478 DOI: 10.1007/s00018-016-2215-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 01/12/2023]
Abstract
The 2014 outbreak of Ebola virus caused more than 10,000 human deaths. Current knowledge of suitable drugs, clinical diagnostic biomarkers and molecular mechanisms of Ebola virus infection is either absent or insufficient. By screening stem-loop structures from the viral genomes of four virulence species, we identified a novel, putative viral microRNA precursor that is specifically expressed by the Ebola virus. The sequence of the microRNA precursor was further confirmed by mining the existing RNA-Seq database. Two putative mature microRNAs were predicted and subsequently validated in human cell lines. Combined with this prediction of the microRNA target, we identified importin-α5, which is a key regulator of interferon signaling following Ebola virus infection, as one putative target. We speculate that this microRNA could facilitate the evasion of the host immune system by the virus. Moreover, this microRNA might be a potential clinical therapeutic target or a diagnostic biomarker for Ebola virus.
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Affiliation(s)
- Yuanwu Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2, Yuanmingyuan West Rd, 100193, Beijing, China
| | - Jing Sun
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2, Yuanmingyuan West Rd, 100193, Beijing, China
| | - Hongwen Zhang
- Department of General Surgery, The 306th Hospital of PLA, Beijing, China
| | - Mingming Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2, Yuanmingyuan West Rd, 100193, Beijing, China
| | - George Fu Gao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Xiangdong Li
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2, Yuanmingyuan West Rd, 100193, Beijing, China.
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12
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Hao L, Xie H, Zhang B, Chen D, Wang S, Zhang H, He S. LRG1 downregulation in allergic airway disorders and its expression in peripheral blood and tissue cells. J Transl Med 2016; 14:202. [PMID: 27378305 PMCID: PMC4932677 DOI: 10.1186/s12967-016-0929-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 05/31/2016] [Indexed: 11/30/2022] Open
Abstract
Background Increased leucine-rich α2-glycoprotein-1 (LRG1) has been observed in plasma of individuals with various diseases. However, the role of LRG1 in allergic airway disease has not been investigated. Objective To explore the involvement of LRG1 in allergy and its cell origins. Methods The expression levels of LRG1 and its receptor transforming growth factor-beta receptor II (TGFBR2) in patients with allergic rhinitis (AR) and asthma (AS) were examined by flow cytometry, and enzyme-linked immunosorbent assay (ELISA). Results LRG1 and soluble TGFBR2 expression in plasma of patients with AR and AS were markedly lower than that of healthy control (HC) subjects. Large proportions of CD123 + HLA-DR−, CD16+, CD4+, CD8+, CD14+, and CD19+ cells expressed LRG1, although the percentages of LRG1+ cells in these cell populations were lower in AR and AS patients. Up to 89.8 and 15.5 % of dispersed mast cells expressed LRG1 and TGFBR2. Moreover, allergen extract exposure significantly reduced LRG1 and TGFBR2 expression in the plasma and leukocytes of patients with AR and AS. Conclusions Reduced LRG1 and TGFBR2 levels in patients with allergic airway disorders are likely caused by inhibitory actions of allergens in LRG1 producing cells. Thus, LRG1 may be a key regulatory factor of allergic responses.
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Affiliation(s)
- Lijing Hao
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Sect. 5, Renmin Street, Guta District, Jinzhou, 121001, Liaoning, People's Republic of China.,Department of Dentistry, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Hua Xie
- Allergy Clinic, The General Hospital of Shenyang Military Region, Shenyang, 110016, Liaoning, People's Republic of China
| | - Bin Zhang
- Department of Dentistry, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Dong Chen
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Sect. 5, Renmin Street, Guta District, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Shufen Wang
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Sect. 5, Renmin Street, Guta District, Jinzhou, 121001, Liaoning, People's Republic of China.,Department of Dentistry, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Huiyun Zhang
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Sect. 5, Renmin Street, Guta District, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Shaoheng He
- Allergy and Clinical Immunology Research Centre, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Sect. 5, Renmin Street, Guta District, Jinzhou, 121001, Liaoning, People's Republic of China.
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13
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Larrea E, Sole C, Manterola L, Goicoechea I, Armesto M, Arestin M, Caffarel MM, Araujo AM, Araiz M, Fernandez-Mercado M, Lawrie CH. New Concepts in Cancer Biomarkers: Circulating miRNAs in Liquid Biopsies. Int J Mol Sci 2016; 17:ijms17050627. [PMID: 27128908 PMCID: PMC4881453 DOI: 10.3390/ijms17050627] [Citation(s) in RCA: 174] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 04/18/2016] [Accepted: 04/18/2016] [Indexed: 12/19/2022] Open
Abstract
The effective and efficient management of cancer patients relies upon early diagnosis and/or the monitoring of treatment, something that is often difficult to achieve using standard tissue biopsy techniques. Biological fluids such as blood hold great possibilities as a source of non-invasive cancer biomarkers that can act as surrogate markers to biopsy-based sampling. The non-invasive nature of these “liquid biopsies” ultimately means that cancer detection may be earlier and that the ability to monitor disease progression and/or treatment response represents a paradigm shift in the treatment of cancer patients. Below, we review one of the most promising classes of circulating cancer biomarkers: microRNAs (miRNAs). In particular, we will consider their history, the controversy surrounding their origin and biology, and, most importantly, the hurdles that remain to be overcome if they are really to become part of future clinical practice.
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Affiliation(s)
- Erika Larrea
- Molecular Oncology, Biodonostia Research Institute, 20014 San Sebastián, Spain.
| | - Carla Sole
- Molecular Oncology, Biodonostia Research Institute, 20014 San Sebastián, Spain.
| | - Lorea Manterola
- Molecular Oncology, Biodonostia Research Institute, 20014 San Sebastián, Spain.
| | - Ibai Goicoechea
- Molecular Oncology, Biodonostia Research Institute, 20014 San Sebastián, Spain.
| | - María Armesto
- Molecular Oncology, Biodonostia Research Institute, 20014 San Sebastián, Spain.
| | - María Arestin
- Molecular Oncology, Biodonostia Research Institute, 20014 San Sebastián, Spain.
| | - María M Caffarel
- Molecular Oncology, Biodonostia Research Institute, 20014 San Sebastián, Spain.
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain.
| | - Angela M Araujo
- Molecular Oncology, Biodonostia Research Institute, 20014 San Sebastián, Spain.
| | - María Araiz
- Hematology Department, Donostia Hospital, 20014 San Sebastián, Spain.
| | | | - Charles H Lawrie
- Molecular Oncology, Biodonostia Research Institute, 20014 San Sebastián, Spain.
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain.
- Nuffield Department of Clinical Laboratory Sciences, University of Oxford, Oxford OX3 9DU, UK.
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14
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Zeng FR, Tang LJ, He Y, Garcia RC. An update on the role of miRNA-155 in pathogenic microbial infections. Microbes Infect 2015; 17:613-21. [PMID: 26072128 DOI: 10.1016/j.micinf.2015.05.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Revised: 04/28/2015] [Accepted: 05/25/2015] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are evolutionarily conserved and naturally abundant molecules of single-stranded, non-coding RNA from ∼17 to 25 nucleotides long. MiRNAs act at post-transcriptional level either to suppress gene translation or to induce mRNA degradation, according to the degree of complementarity with their target sequences. MiR-155 is a typical representative of the miRNA family that plays a crucial role in cell differentiation and organism development. A number of studies have shown that miR-155 can not only regulate cell proliferation, apoptosis and lymphoma progression, but also plays an important part in various other physiological and pathological processes. For instance, it is involved in hematopoietic cell differentiation, cardiovascular disease, inflammation and immune responses. In recent years, the role of miR-155 in infectious diseases has attracted considerable attention. This review will highlight the participation of miR-155 in the responses to infections caused by different pathogens.
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Affiliation(s)
- Fu-Rong Zeng
- The State Key Laboratory of Medical Genetics & School of Life Sciences, Central South University, Changsha 410078, Hunan, China
| | - Li-Jun Tang
- The State Key Laboratory of Medical Genetics & School of Life Sciences, Central South University, Changsha 410078, Hunan, China.
| | - Ye He
- The State Key Laboratory of Medical Genetics & School of Life Sciences, Central South University, Changsha 410078, Hunan, China
| | - R C Garcia
- International Centre for Genetic Engineering and Biotechnology, Area Science Park, Padriciano 99, 34012 Trieste, Italy
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