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Zhang T, Huang H, Liang L, Lu H, Liang D. Long non-coding RNA (LncRNA) non-coding RNA activated by DNA damage (NORAD) knockdown alleviates airway remodeling in asthma via regulating miR-410-3p/RCC2 and inhibiting Wnt/β-catenin pathway. Heliyon 2024; 10:e23860. [PMID: 38261955 PMCID: PMC10796956 DOI: 10.1016/j.heliyon.2023.e23860] [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: 02/28/2023] [Revised: 12/14/2023] [Accepted: 12/14/2023] [Indexed: 01/25/2024] Open
Abstract
Background Asthma is a chronic inflammatory disorder with high prevalence in childhood. Airway remodeling, an important structural change of the airways, is resulted from epithelial-mesenchymal transition. Long non-coding RNA non-coding RNA activated by DNA damage (NORAD) has been found to promote epithelial-mesenchymal transition in multiple cancers. This study aimed to analyze the role of NORAD in asthma, mainly focusing on epithelial-mesenchymal transition-mediated airway remodeling, and further explored the NORAD-miRNA-mRNA network. Methods NORAD expression was analyzed in transforming growth factor-β1-induced BEAS-2B human bronchial epithelial cells and ovalbumin-challenged asthmatic mice. The influences of NORAD on the epithelial-mesenchymal transition characteristics and Wnt/β-catenin pathway activation were analyzed in vitro. The interactions between NORAD and miR-410-3p as well as miR-410-3p and regulator of chromosome condensation 2 were detected by dual-luciferase reporter assay and RNA pull-down assay. Rescue experiments using miR-410-3p antagonist and chromosome condensation 2 overexpression were used to confirm the mechanism of NORAD. Additionally, the role and mechanism of NORAD were further evaluated in asthmatic mice. Results NORAD expression was elevated in both asthmatic models. Knockdown of NORAD impeded spindle-like morphology changes, elevated E-cadherin expression, decreased N-cadherin expression, suppressed cell migration, and inactivated the Wnt/β-catenin pathway in transforming growth factor-β1-stimulated BEAS-2B cells. NORAD acted as a sponge of miR-410-3p to regulate chromosome condensation 2 expression. Rescue assays demonstrated that silencing of NORAD ameliorated transforming growth factor-β1-induced EMT via miR-410-3p/chromosome condensation 2/Wnt/β-catenin axis. In vivo, knockdown of NORAD led to the reduction of inflammatory cell infiltration and collagen deposition, suppression of IL-4, IL-13, transforming growth factor-β1 and immunoglobulin E production, decreasing of N-cadherin, chromosome condensation 2, β-catenin and c-Myc expression, but increasing of E-cadherin and miR-410-3p expression. Conclusions Silencing of NORAD alleviated epithelial-mesenchymal transition-mediated airway remodeling in asthma via mediating miR-410-3p/chromosome condensation 2/Wnt/β-catenin pathway.
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Affiliation(s)
- Ting Zhang
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
| | - Han Huang
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
| | - Lihong Liang
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
| | - Hongxia Lu
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
| | - Dongge Liang
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
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Tong N, Liu D, Lu L, Lin R, Jin R. miR-410 Regulates Helper T Cell Differentiation in Ovalbumin-Induced Asthma through the PI3K-AKT-VEGF Signaling Pathway. Int Arch Allergy Immunol 2023; 185:1-9. [PMID: 37725935 DOI: 10.1159/000531493] [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: 10/05/2022] [Accepted: 06/02/2023] [Indexed: 09/21/2023] Open
Abstract
INTRODUCTION Asthma has been attributed to Th1/Th2 imbalance and inappropriate Th2 responses to environmental allergens. MicroRNAs (miRNAs), 21 to 23 RNA molecules, are first found in mammals and have been implicated in various biological activities. Our previous study found that miR-410 effectively ameliorates airway inflammation in the ovalbumin (OVA)-induced asthma murine model. However, the role of miR-410 in regulating helper T (Th) cell differentiation is not clear. In the present study, we aimed to explore the regulatory effects of miR-410 on the differentiation of Th cells through both in vivo and in vitro studies. METHODS Dual-luciferase reporter assay was used to find if miR-410 has any direct binding position with VEGF mRNAs. PBMC and CD4+ T cells were isolated and stimulated with OVA. The miR-410 mimics and inhibitors were transfected into CD4+ T cells. The differentiation of Th cells was evaluated by enzyme-linked immunosorbent assay (ELISA) for the concentration of IL-4, IFN-γ, and TGF-β levels in supernatants. Western Blot was used to detect protein expression and phosphorylation of PI3K and AKT. BALB/c mice were kept in a specific pathogen-free condition and received sterile OVA-free food and water. OVA-induced asthmatic mice model was established. ELISA was used to measure the bronchoalveolar lavage fluid (BALF) concentrations of IL-4, IFN-γ, TGF-β, and VEGF. Hematoxylin and eosin staining and immunohistochemical staining were conducted to analyze inflammatory cell infiltration, pathological changes, and the expression of VEGF. RESULTS Dual-luciferase reporter assay showed that miR-410 has no direct binding position with VEGF mRNAs. In the OVA-primed mononuclear cells compared to normal cells, IFN-γ and TGF-β were decreased while IL-4 and VEGF were increased. This change was reversed while miRNA-410 mimics were transfected into CD4+ T cells. Besides, the OVA-primed CD4+ T cells treated with miR-410 decrease the proliferation of cytokine of Th2 cells as well as phosphorylation of PI3K, and AKT. In OVA-induced asthma mice, IFN-γ and TGF-β were decreased in BALF while the IL-4 and VEGF were increased. OVA-induced mice with asthma treated with miR-410 mimics showed marked reductions in the infiltration of inflammatory cells as well as IL-4 and VEGF in BALF. The immunohistochemical staining of the expression of VEGF also decreased in OVA-induced asthma mice with the instillation of miR-410. CONCLUSIONS In this study, we revealed that miR-410 could regulate the differentiation of Th cells via the PI3K-AKT-VEGF signaling pathway in asthma.
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Affiliation(s)
- Nianting Tong
- Department of Ophthalmology, Qingdao Municipal Hospital, Qingdao, China
| | - Dongyun Liu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ling Lu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Rongjun Lin
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Rong Jin
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
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Goodarzi V, Nouri S, Nassaj ZS, Bighash M, Abbasian S, Hagh RA. Long non coding RNAs reveal important pathways in childhood asthma: a future perspective. J Mol Histol 2023; 54:257-269. [PMID: 37537509 DOI: 10.1007/s10735-023-10131-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 06/04/2023] [Indexed: 08/05/2023]
Abstract
Asthma is a long-term inflammatory disease of the airways of the lungs refers changes that occur in conjunction with, or as a result of, chronic airway inflammation. Airway remodeling the subsequent of inflammation constitutes cellular and extracellular matrix changes in the wall airways, epithelial-to-mesenchymal-transition and airway smooth muscle cell proliferation. Diseases often begin in childhood and despite extensive research, causative pathogenic mechanisms still remain unclear. Transcriptome analysis of childhood asthma reveals distinct gene expression profiles of Long noncoding RNAs which have been reported to play a central regulatory role in various aspects of pathogenesis, clinical course and treatment of asthma. We briefly review current understanding of lnc-RNA dysregulation in children with asthma, focusing on their complex role in the inflammation, cell proliferation and remodeling of airway to guide future researches. We found that the lnc-RNAs increases activity of several oncogenes such c-Myc, Akt, and ERK and various signaling pathways such as MAPK (PI3K, Ras, JNK and p38), NF-κB and Wnt and crosstalk between these pathways by TGFβ, β-catenin, ERK and SKP2. Moreover, two different signal transduction pathways, Wnt and Notch1, can be activated by two lnc-RNAs through sponging the same miRNA for exacerbation cell proliferation.
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Affiliation(s)
- Vahid Goodarzi
- Department of Anesthesiology, Rasoul-Akram Medical Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Shadi Nouri
- Arak University of Medical Sciences, Arak, Iran
| | - Zohre Saleh Nassaj
- Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mansoureh Bighash
- Bachelor of Nursing, School of Paramedical Sciences, Qazvin University of Medical Sciences, Qazvn, Iran
| | - Sadegh Abbasian
- Department of Laboratory Science, School of Paramedical Sciences, Ilam University of Medical Sciences, Ilam, Iran
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The Role of Noncoding RNA in Airway Allergic Diseases through Regulation of T Cell Subsets. Mediators Inflamm 2022; 2022:6125698. [PMID: 36248190 PMCID: PMC9553461 DOI: 10.1155/2022/6125698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/31/2022] [Accepted: 09/23/2022] [Indexed: 11/18/2022] Open
Abstract
Allergic rhinitis and asthma are common airway allergic diseases, the incidence of which has increased annually in recent years. The human body is frequently exposed to allergens and environmental irritants that trigger immune and inflammatory responses, resulting in altered gene expression. Mounting evidence suggested that epigenetic alterations were strongly associated with the progression and severity of allergic diseases. Noncoding RNAs (ncRNAs) are a class of transcribed RNA molecules that cannot be translated into polypeptides and consist of three major categories, microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs). Previous studies showed that ncRNAs were involved in the physiopathological mechanisms of airway allergic diseases and contributed to their occurrence and development. This article reviews the current state of understanding of the role of noncoding RNAs in airway allergic diseases, highlights the limitations of recent studies, and outlines the prospects for further research to facilitate the clinical translation of noncoding RNAs as therapeutic targets and biomarkers.
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Rittchen S, Jandl K, Lanz I, Reiter B, Ferreirós N, Kratz D, Lindenmann J, Brcic L, Bärnthaler T, Atallah R, Olschewski H, Sturm EM, Heinemann A. Monocytes and Macrophages Serve as Potent Prostaglandin D 2 Sources during Acute, Non-Allergic Pulmonary Inflammation. Int J Mol Sci 2021; 22:ijms222111697. [PMID: 34769126 PMCID: PMC8584273 DOI: 10.3390/ijms222111697] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/20/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
Acute respiratory inflammation, most commonly resulting from bacterial or viral infection, is one of the leading causes of death and disability worldwide. The inflammatory lipid mediator prostaglandin D2 (PGD2) and its rate-limiting enzyme, hematopoietic PGD synthase (hPGDS), are well-known drivers of allergic pulmonary inflammation. Here, we sought to investigate the source and role of hPGDS-derived PGD2 in acute pulmonary inflammation. Murine bronchoalveolar monocytes/macrophages from LPS- but not OVA-induced lung inflammation released significant amounts of PGD2. Accordingly, human monocyte-derived macrophages expressed high basal levels of hPGDS and released significant levels of PGD2 after LPS/IFN-γ, but not IL-4 stimulation. Human peripheral blood monocytes secreted significantly more PGD2 than monocyte-derived macrophages. Using human precision-cut lung slices (PCLS), we observed that LPS/IFN-γ but not IL-4/IL-13 drive PGD2 production in the lung. HPGDS inhibition prevented LPS-induced PGD2 release by human monocyte-derived macrophages and PCLS. As a result of hPGDS inhibition, less TNF-α, IL-6 and IL-10 could be determined in PCLS-conditioned medium. Collectively, this dataset reflects the time-dependent release of PGD2 by human phagocytes, highlights the importance of monocytes and macrophages as PGD2 sources and suggests that hPGDS inhibition might be a potential therapeutic option for acute, non-allergic lung inflammation.
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Affiliation(s)
- Sonja Rittchen
- Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria; (S.R.); (K.J.); (I.L.); (B.R.); (T.B.); (R.A.); (E.M.S.)
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria;
| | - Katharina Jandl
- Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria; (S.R.); (K.J.); (I.L.); (B.R.); (T.B.); (R.A.); (E.M.S.)
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria;
| | - Ilse Lanz
- Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria; (S.R.); (K.J.); (I.L.); (B.R.); (T.B.); (R.A.); (E.M.S.)
| | - Bernhard Reiter
- Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria; (S.R.); (K.J.); (I.L.); (B.R.); (T.B.); (R.A.); (E.M.S.)
| | - Nerea Ferreirós
- Pharmazentrum Frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University Frankfurt, 60596 Frankfurt am Main, Germany; (N.F.); (D.K.)
| | - Daniel Kratz
- Pharmazentrum Frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University Frankfurt, 60596 Frankfurt am Main, Germany; (N.F.); (D.K.)
| | - Jörg Lindenmann
- Department of Surgery, Divison of Thoracic and Hyperbaric Surgery, Medical University of Graz, 8010 Graz, Austria;
| | - Luka Brcic
- Diagnostic and Research Institute of Pathology, Medical University of Graz, 8010 Graz, Austria;
| | - Thomas Bärnthaler
- Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria; (S.R.); (K.J.); (I.L.); (B.R.); (T.B.); (R.A.); (E.M.S.)
| | - Reham Atallah
- Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria; (S.R.); (K.J.); (I.L.); (B.R.); (T.B.); (R.A.); (E.M.S.)
| | - Horst Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria;
- Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8010 Graz, Austria
| | - Eva M. Sturm
- Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria; (S.R.); (K.J.); (I.L.); (B.R.); (T.B.); (R.A.); (E.M.S.)
| | - Akos Heinemann
- Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria; (S.R.); (K.J.); (I.L.); (B.R.); (T.B.); (R.A.); (E.M.S.)
- BioTechMed, 8010 Graz, Austria
- Correspondence: ; Tel.: +43-316-385-74112
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Ahmad N, Ahmad R, Alrasheed RA, Almatar HMA, Al-Ramadan AS, Buheazah TM, AlHomoud HS, Al-Nasif HA, Alam MA. A Chitosan-PLGA based catechin hydrate nanoparticles used in targeting of lungs and cancer treatment. Saudi J Biol Sci 2020; 27:2344-2357. [PMID: 32884416 PMCID: PMC7451615 DOI: 10.1016/j.sjbs.2020.05.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/02/2020] [Accepted: 05/11/2020] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE To prepare a novel Chitosan (CS)-coated-PLGA-NPs of catechin hydrate (CTH) and to improve lungs bioavailability via direct nose to lungs-delivery for the comparative assessment of a pulmokinetics study by the first-time UHPLC-MS/MS developed method in the treatment of lungs cancer via anticancer activities on H1299 lung cancer cells. MATERIAL AND METHODS PLGA-NPs was prepared by solvent evaporation (double emulsion) method followed by coated with chitosan (CS) and evaluated based on release and permeation of drug, a comparative pulmokinetics study with their anticancer activities on H1299 lung cancer cells. RESULTS The particle size, PDI and ZP of the optimized CAT-PLGA-NPs and CS-CAT-PLGA-NPs were determined 124.64 ± 12.09 nm and 150.81 ± 15.91 nm, 0.163 ± 0.03 and 0.306 ± 0.03, -3.94 ± 0.19 mV and 26.01 ± 1.19 mV respectively. Furthermore, higher entrapment efficiency was observed for CS-CAT PLGA NPs. The release pattern of the CS-CAT-PLGA NPs was found to favor the release of entrapped CAT within the cancer microenvironment. CS-CAT-PLGA-NPs exposed on H1299 cancer cells upto 24.0 h was found to be higher cytotoxic as compared to CAT-solution (CAT-S). CS-CAT-PLGA-NPs showed higher apoptosis of cancer cells after their exposure as compared to CAT-S. CS-CTH-PLGA-NPs showed tremendous mucoadhesive-nature as compared to CTH-S and CS-CTH-PLGA NPs by retention time (RT) of 0.589 min, and m/z of 289.21/109.21 for CTH alongwith RT of 0.613 min and m/z of 301.21/151.21 was found out for IS (internal standard), i.e. Quercetin). Likewise, for 1-1000 ng mL-1 (linear range) of % accuracy (92.01-99.31%) and %CV (inter & intra-day, i.e. 2.14-3.33%) was determined. The improved Cmax with AUC0-24 was observed extremely significant (p < 0.001) via i.n. as compared oral and i.v. in the wistar rat's lungs. The CS-approach was successfully designed and safely delivered CAT to the lungs without causing any risk. CONCLUSION CS-CTH-PLGA-NPs were showed a significant role (p < 0.001) for the enhancement of lungs-bioavailability and potentially promising approach to treat lung cancers. CS-CTH-PLGA-NPs did not cause any toxicity, it showed safety and have no obvious toxic-effects on the rat's lungs and does not produce any mortality followed by no abnormal findings in the treated-rats.
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Key Words
- ANOVA, analysis of variance
- AUC, area under curve
- Apoptosis
- CC, calibration curve
- CH-S, catechin-hydrate-suspension
- CS, chitosan
- CS-CTH-PLGA-NPs
- CS-CTH-PLGA-NPs, chitosan-coated catechin hydrate-loaded-PLGA-nanoparticles
- CTH, Catechin hydrate
- Catechin hydrate
- Cmax, maximum plasma concentration
- DCM, dichloromethane
- DSC, differential scanning calorimetry
- EE, entrapment efficiency
- ESI, Electrospray ionization
- HQC, high quality control
- IS, internal standard
- Kel, elimination rate constant
- LC, loading capacity
- LLOQ, liquid–liquid extraction: LLE: lower limit of quantification
- LLOQQC, lower limit of quantification for quality control
- LOD, lower limit of detection
- LOQ, lower limit of quantitation
- Lung cancer
- Lungs comparative pulmokinetics
- MQC, low quality control: LQC: middle quality control
- NPs, nanoparticles
- PBS, phosphate buffered solution
- PDI, polydispersity index
- PVA, polyvinyl alcohol
- SEM, scanning electron microscope
- TEM, transmission electron microscope
- Tmax, time to Cmax
- UHPLC-MS/MS
- UHPLC-MS/MS, ultra high performance liquid chromatography mass spectroscopy and mass spectroscopy
- t½, half-life
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Affiliation(s)
- Niyaz Ahmad
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
- Department of Pharmaceutical Chemistry, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Rizwan Ahmad
- Department of Natural Products and Alternative Medicine, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ridha Abdullah Alrasheed
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hassan Mohammed Ali Almatar
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Abdullah Sami Al-Ramadan
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Taysser Mohammed Buheazah
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hussain Salman AlHomoud
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hassan Ali Al-Nasif
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Md Aftab Alam
- Department of Pharmaceutics, School of Medical and Allied Sciences, Galgotias University, Gautam Budh Nagar, Greater Noida 201310, India
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Brodzikowska A, Gondek A, Rak B, Paskal W, Pełka K, Cudnoch-Jędrzejewska A, Włodarski P. Metalloproteinase 14 (MMP-14) and hsa-miR-410-3p expression in human inflamed dental pulp and odontoblasts. Histochem Cell Biol 2019; 152:345-353. [PMID: 31486923 PMCID: PMC6842353 DOI: 10.1007/s00418-019-01811-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2019] [Indexed: 11/30/2022]
Abstract
The objective of this study is to evaluate MMP-14 expression in odontoblasts and in the bulk of dental pulp of teeth with pulpitis; to determine the expression of microRNA-410 (miR-410) in pulp tissue, since sequence analysis suggests that miR-410 has potential binding site on MMP-14’s 3′UTR, and hence, can regulate expression of the latter one. Tissue samples of dental pulp from teeth with pulpitis and healthy (control) were formalin fixed and paraffin embedded (FFPE). Samples were examined using immunohistochemical staining for MMP-14 and the expression of miR-410 was evaluated using qRT-PCR. In both, healthy and inflamed pulp odontoblasts stained more intensively than remaining pulp tissue, but this difference was not statistically significant. More positive staining was observed in inflamed pulps compared to healthy pulps. Expression of miR-410 was found significantly lower in inflamed pulps than in healthy ones. In the two examined zones, odontoblasts and remaining pulp, miR-410 was expressed on a similar level. No statistically significant correlation of miR-410 and MMP-14 expression was found. We showed that inflammation changes the MMP-14 expression in pulp tissue and odontoblasts. This study demonstrates for the first time miR-410 expression in human dental pulp and that expression of this microRNA was downregulated in inflamed dental pulp and odontoblasts.
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Affiliation(s)
- Aniela Brodzikowska
- The Department of Conservative Dentistry, Medical University of Warsaw, Miodowa 18, 00-246, Warsaw, Poland.
| | - Agata Gondek
- Laboratory of Centre for Preclinical Research, Department of Methodology, Medical University of Warsaw, Banacha 1b, 02-097, Warsaw, Poland
| | - Beata Rak
- Laboratory of Centre for Preclinical Research, Department of Methodology, Medical University of Warsaw, Banacha 1b, 02-097, Warsaw, Poland.,Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland.,Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Banacha 1a, Warsaw, Poland
| | - Wiktor Paskal
- Laboratory of Centre for Preclinical Research, Department of Methodology, Medical University of Warsaw, Banacha 1b, 02-097, Warsaw, Poland
| | - Kacper Pełka
- Laboratory of Centre for Preclinical Research, Department of Methodology, Medical University of Warsaw, Banacha 1b, 02-097, Warsaw, Poland
| | - Agnieszka Cudnoch-Jędrzejewska
- Laboratory of Centre for Preclinical Research, Department of Experimental and Clinical Physiology, Medical University of Warsaw, Banacha 1b, 02-097, Warsaw, Poland
| | - Paweł Włodarski
- Laboratory of Centre for Preclinical Research, Department of Methodology, Medical University of Warsaw, Banacha 1b, 02-097, Warsaw, Poland
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