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王 洪, 谢 海, 徐 乌, 李 明. [Urolithin A alleviates respiratory syncytial virus-induced lung infection in neonatal mice by activating miR-136-mediated Sirt1 signaling]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2024; 44:1370-1381. [PMID: 39051083 PMCID: PMC11270657 DOI: 10.12122/j.issn.1673-4254.2024.07.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Indexed: 07/27/2024]
Abstract
OBJECTIVE To observe the therapeutic effects of urolithin A (UA) on respiratory syncytial virus (RSV)-induced lung infection in neonatal mice and explore the underlying mechanisms. METHODS Babl/c mice (5-7 days old) were subjected to nasal instillation of RSV and received intraperitoneal injection of saline or 2.5, 5 and 10 mg/kg UA 2 h after the infection and then once daily for 2 weeks. Bronchoalveolar lavage fluid (BALF) was then collected for detection of inflammatory cells and mediators, and lung pathology was evaluated with HE staining. RSV-infected BEAS-2B cells were treated with 2.5, 5 or 10 µmol/ L UA. Inflammatory factors, cell viability, apoptosis and autophagy were analyzed using ELISA, CCK-8 assay, TUNEL staining, flow cytometry, Western blotting and immunofluorescence staining. The cellular expressions of miR-136 and Sirt1 mRNAs were detected using qRT-PCR. A dual-luciferase reporter system was used to verify the binding between miR-136 and Sirt1. RESULTS In neonatal Babl/c mice, RSV infection caused obvious lung pathologies, promoted pulmonary cell apoptosis and LC3-Ⅱ/Ⅰ, Beclin-1 and miR-136 expressions, and increased the total cell number, inflammatory cells and factors in the BALF and decreased p62 and Sirt1 expressions. All these changes were alleviated dose-dependently by UA. In BEAS-2B cells, RSV infection significantly increased cell apoptosis, LC3B-positive cells and miR-136 expression and reduced Sirt1 expression (P<0.01), which were dose-dependently attenuated by UA. Dual-luciferase reporter assay confirmed the binding between miR-136 and Sirt1. In RSV-infected BEAS-2B cells with UA treatment, overexpression of miR-136 and Ex527 treatment both significantly increased the inflammatory factors and cell apoptosis but decreased LC3B expression, and these changes were further enhanced by their combined treatment. CONCLUSION UA ameliorates RSV-induced lung infection in neonatal mice by activating miR-136-mediated Sirt1 signaling pathway.
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Renteria AE, Maniakas A, Pelletier A, Filali-Mouhim A, Brochiero E, Valera FCP, Adam D, Mfuna LE, Desrosiers M. Utilization of Transcriptomic Profiling to Identify Molecular Markers Predicting Successful Recovery Following Endoscopic Sinus Surgery for Chronic Rhinosinusitis. Otolaryngol Head Neck Surg 2023; 169:1662-1673. [PMID: 37622488 DOI: 10.1002/ohn.482] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 08/26/2023]
Abstract
OBJECTIVES Successful recovery from chronic rhinosinusitis (CRS) following endoscopic sinus surgery (ESS) can be characterized by minimal presence of symptoms and absence of disease on endoscopy. However, molecular markers of surgical success remain to be characterized. These could allow for better tailoring of perioperative therapy. This study aims to identify novel molecular markers associated with surgery responsive patient. STUDY DESIGN Prospective cohort study. SETTING Single academic hospital center. METHOD One hundred eighteen consecutive patients with CRS at high risk of recurrence after surgery were followed prospectively following ESS in an academic medical center. Symptomatic and endoscopic outcomes were assessed at 4 months, with success rigorously defined subjectively as minimal or no symptoms (no symptom greater than 1 on an ordinal scale of 0-3) and objectively by the absence of nasal polyposis on sinus cavity endoscopy and Lund-Kennedy endoscopic edema score no greater than 1. Samples were obtained at the time of surgery and at 4-month postoperatively. Changes associated with surgery were determined by gene expression profiling using Affymetrix's Clariom S Human HT arrays. RESULTS Successful ESS was characterized by a mild upregulation in Type 1 inflammation, upregulation of cell cycle progression, and epithelial barrier and proliferation-associated genes and pathways. ESS failure was associated to very high levels of Type 1 inflammation along with downregulation of epithelial barrier function and regeneration genes and pathways. CONCLUSION Successful recovery from ESS involves restoration of epithelial function and regulated activation of Type 1 inflammation. Excessively elevated Type 1 inflammation is associated with epithelial barrier dysfunction.
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Affiliation(s)
- Axel E Renteria
- Immunopathology Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Département d'Oto-rhino-laryngologie et chirurgie cervico-faciale du , Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Anastasios Maniakas
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Audrey Pelletier
- Immunopathology Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Ali Filali-Mouhim
- Immunopathology Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Emmanuelle Brochiero
- Immunopathology Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Département de Médecine, Université de Montréal, Montréal, Québec, Canada
| | - Fabiana C P Valera
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Damien Adam
- Immunopathology Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Département de Médecine, Université de Montréal, Montréal, Québec, Canada
| | - Leandra Endam Mfuna
- Immunopathology Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Martin Desrosiers
- Immunopathology Axis, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Département d'Oto-rhino-laryngologie et chirurgie cervico-faciale du , Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
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Cheng Y, Tang Q, Li Y, Xu X, Zhen X, Chang N, Huang S, Zeng J, Luo F, Ouyang Q, Peng L, Ma G, Wang Y. The polymorphisms of miR-146a SNPs are associated with asthma in Southern Chinese Han population. Gene 2023; 879:147587. [PMID: 37364699 DOI: 10.1016/j.gene.2023.147587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/14/2023] [Accepted: 06/21/2023] [Indexed: 06/28/2023]
Abstract
Asthma, a prevalent disease characterized by innate and adaptive immune responses, has been associated with several risk factors including miR-146a. To better understand the potential impact of miR-146a SNPs on asthma susceptibility and clinical features in Southern Chinese Han population, we conducted a case-control to analyze two functional SNPs (rs2910164 and rs57095329) of the miR-146a (394 patients with asthma and 395 healthy controls). Our findings suggest that the rs2910164 C/G genotype may increase the risk for asthma in females, while the rs57095329 G/G genotype may be involved in the regulation of clinical characteristics of males with asthma. In addition, we demonstrated that the SNPs rs2910164 C/G and rs57095329 A/G variations functionally affected the miR-146a levels in patients with asthma, and may alter structure of miR-146a. Our data are the first to suggest that miR-146a SNPs may be significantly associated with onset asthma in Southern Chinese Han population. Our studies may provide new insight into the potential significance of miR-146a SNPs in asthma.
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Affiliation(s)
- Yisen Cheng
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang 524023, China; School of Pharmaceutical Sciences, Guangxi Medical University, Nanning 530000, China
| | - Qiqi Tang
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China
| | - Yu Li
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China
| | - Xusan Xu
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China
| | - Xiangfan Zhen
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China
| | - Ning Chang
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China
| | - Si Huang
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China
| | - Jieqing Zeng
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China
| | - Fei Luo
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China
| | - Qianqian Ouyang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang 524023, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Guangdong Medical University, Zhanjiang 524023, China
| | - Liuquan Peng
- Department of Pediatrics, Shunde Women and Children's Hospital of Guangdong Medical University, Foshan 528300, China
| | - Guoda Ma
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang 524023, China; Key Laboratory of Research in Maternal and Child Medicine and Birth Defects, Guangdong Medical University, Foshan 528300, China.
| | - Yajun Wang
- Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan 528300, China; Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524023, China.
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López-Cepeda L, Castro JD, Aristizábal-Pachón AF, González-Giraldo Y, Pinzón A, Puentes-Rozo PJ, González J. Modulation of Small RNA Signatures by Astrocytes on Early Neurodegeneration Stages; Implications for Biomarker Discovery. Life (Basel) 2022; 12:1720. [PMID: 36362875 PMCID: PMC9696502 DOI: 10.3390/life12111720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/01/2022] [Accepted: 10/12/2022] [Indexed: 04/04/2024] Open
Abstract
Diagnosis of neurodegenerative disease (NDD) is complex, therefore simpler, less invasive, more accurate biomarkers are needed. small non-coding RNA (sncRNA) dysregulates in NDDs and sncRNA signatures have been explored for the diagnosis of NDDs, however, the performance of previous biomarkers is still better. Astrocyte dysfunction promotes neurodegeneration and thus derived scnRNA signatures could provide a more precise way to identify of changes related to NDD course and pathogenesis, and it could be useful for the dissection of mechanistic insights operating in NDD. Often sncRNA are transported outside the cell by the action of secreted particles such as extracellular vesicles (EV), which protect sncRNA from degradation. Furthermore, EV associated sncRNA can cross the BBB to be found in easier to obtain peripheral samples, EVs also inherit cell-specific surface markers that can be used for the identification of Astrocyte Derived Extracellular Vesicles (ADEVs) in a peripheral sample. By the study of the sncRNA transported in ADEVs it is possible to identify astrocyte specific sncRNA signatures that could show astrocyte dysfunction in a more simpler manner than previous methods. However, sncRNA signatures in ADEV are not a copy of intracellular transcriptome and methodological aspects such as the yield of sncRNA produced in ADEV or the variable amount of ADEV captured after separation protocols must be considered. Here we review the role as signaling molecules of ADEV derived sncRNA dysregulated in conditions associated with risk of neurodegeneration, providing an explanation of why to choose ADEV for the identification of astrocyte-specific transcriptome. Finally, we discuss possible limitations of this approach and the need to improve the detection limits of sncRNA for the use of ADEV derived sncRNA signatures.
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Affiliation(s)
- Leonardo López-Cepeda
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Juan David Castro
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | | | - Yeimy González-Giraldo
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Andrés Pinzón
- Laboratorio de Bioinformática y Biología de Sistemas, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Pedro J. Puentes-Rozo
- Grupo de Neurociencias del Caribe, Unidad de Neurociencias Cognitivas, Universidad Simón Bolívar, Barranquilla 080002, Colombia
- Grupo de Neurociencias del Caribe, Universidad del Atlántico, Barranquilla 080007, Colombia
| | - Janneth González
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
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Reduced miR-146a-5p Is a Biomarker of Infant Respiratory Diseases Contributing to Immune Dysregulation in Small Airway Epithelial Cells. Cells 2022; 11:cells11172746. [PMID: 36078154 PMCID: PMC9454747 DOI: 10.3390/cells11172746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/21/2022] Open
Abstract
Respiratory diseases such as bronchiolitis, and those with wheezing episodes, are highly important during infancy due to their potential chronicity. Immune response dysregulation is critical in perpetuating lung damage. Epigenetic modifications including microRNA (miRNA) post-transcriptional regulation are among the factors involved in alleviating inflammation. We evaluated the expression of miR-146a-5p, a previously described negative regulator of immunity, in infants with respiratory diseases, in order to study epigenetic regulation of the immune response. Nasopharyngeal aspirate (NPA) was obtained from infants with bronchiolitis (ongoing and post-disease) or with wheezing episodes in addition to healthy controls. Virus presence was determined by nested PCR, while miRNA and gene expression were studied in cells from NPAs using qPCR. Healthy small airway epithelial cells (SAECs) were used as an in vitro model. We observe a reduction in miR-146a-5p expression in infants with either of the two diseases compared to controls, suggesting the potential of this miRNA as a disease biomarker. Post-bronchiolitis, miR-146a-5p expression increases, though without reaching levels of healthy controls. MiR-146a-5p expression correlates inversely with the immune-related gene PTGS2, while its expression correlates directly with TSLP. When heathy donor SAECs are stimulated by poly:IC, we observe an increase in miR-146a-5p, with wounds having a synergistic effect. In conclusion, infants with respiratory diseases present reduced miR-146a-5p expression, possibly affecting immune dysregulation.
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