1
|
Mantadaki AE, Linardakis M, Vafeiadi M, Anastasiou F, Tsatsakis A, Symvoulakis EK. The Impact of Three-Month Quercetin Intake on Quality of Life and Anxiety in Patients With Type II Diabetes Mellitus: An Early Data Analysis From a Randomized Controlled Trial. Cureus 2024; 16:e58219. [PMID: 38745810 PMCID: PMC11091546 DOI: 10.7759/cureus.58219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Diabetes is a high-prevalence, major chronic metabolic disease demanding effective interventions. Quercetin, a phytochemical with potential health benefits, has garnered interest for its therapeutic properties. AIM This study was designed to capture the early efficacy and clinical safety aspects following quercetin administration in patients with type II diabetes mellitus (T2DM). METHODS The main study involved a randomized allocation procedure to assign non-insulin-treated patients attending the 4th Health Unit of Heraklion to intervention and control groups based on age and sex. The intervention group (n=50) received 500 mg of quercetin daily for 12 + (8 free intervals) + 12 weeks, alongside their usual treatment, while the control group (n=50) did not. After randomization, for the intermediary 12-week follow-up, data from 38 patients (intervention: 20; control: 18) were analyzed in this report. All subjects provided informed consent for the collection of anthropometric measurements, vital signs, daily habits data, and PiKo-6 spirometric readings. Additionally, participants responded to the Short Anxiety Screening Test (SAST) and the 36-Item Short Form Health Survey (SF-36) questionnaires. RESULTS Thirty-eight participants were included (60% men and 40% women in the intervention group; 38.9% men and 61.1% women in the control group). In the treatment arm, Forced Expiratory Volume in the first second (FEV1) measured with PiKo-6 showed a Δ%- change for the intervention arm: +6.8%, control: -0.2% (p=0.059), systolic blood pressure; intervention: -7.4%, control: -3.7% (p=0.117), waist circumference; intervention: -1.5% control: -0.7% (p=0.455) and night-time sleep; intervention: +5.3%, control: +1.4% (p=0.926) were favourably influenced. The treatment group exhibited significant enhancements in both anxiety levels assessed by the anxiety symptoms scale (SAST-10, p=0.026) and quality of life evaluated by the SF-36 (p<0.001). CONCLUSIONS Positive evidence is emerging for a pleiotropic effect of quercetin intake in patients with T2DM, specifically in terms of anxiety reduction and amelioration of life quality, in just 12 weeks of administration and without adverse effects, indicating clinical safety and underscoring its potential for integration in T2DM supportive care.
Collapse
Affiliation(s)
| | - Manolis Linardakis
- Department of Social Medicine, Clinic of Social and Family Medicine, University of Crete, School of Medicine, Heraklion, GRC
| | - Marina Vafeiadi
- Department of Social Medicine, University of Crete, School of Medicine, Heraklion, GRC
| | - Foteini Anastasiou
- Department of Social Medicine, Clinic of Social and Family Medicine, University of Crete, School of Medicine, Heraklion, GRC
| | - Aristidis Tsatsakis
- Department of Morphology, Laboratory of Toxicology, University of Crete, School of Medicine, Heraklion, GRC
| | - Emmanouil K Symvoulakis
- Department of Social Medicine, Clinic of Social and Family Medicine, University of Crete, School of Medicine, Heraklion, GRC
| |
Collapse
|
2
|
Deng X, Chen D, Xie A, Li S, Chen A, Zhou Q, Yu R. Quercetin alleviates hyperoxia-induced bronchopulmonary dysplasia by inhibiting ferroptosis through the MAPK/PTGS2 pathway: Insights from network pharmacology, molecular docking, and experimental evaluations. Chem Biol Drug Des 2024; 103:e14520. [PMID: 38570710 DOI: 10.1111/cbdd.14520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/11/2024] [Accepted: 03/18/2024] [Indexed: 04/05/2024]
Abstract
Quercetin, a bioactive natural compound renowned for its potent anti-inflammatory, antioxidant, and antiviral properties, has exhibited therapeutic potential in various diseases. Given that bronchopulmonary dysplasia (BPD) development is closely linked to inflammation and oxidative stress, and quercetin, a robust antioxidant known to activate NRF2 and influence the ferroptosis pathway, offers promise for a wide range of age groups. Nonetheless, the specific role of quercetin in BPD remains largely unexplored. This study aims to uncover the target role of quercetin in BPD through a combination of network pharmacology, molecular docking, computer analyses, and experimental evaluations.
Collapse
Affiliation(s)
- Xianhui Deng
- Department of Neonatology, Affiliated Women's Hospital of Jiangnan University, Wuxi Maternity and Child Health Care Hospital, Wuxi, China
| | - Dan Chen
- Department of Physiopathology, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Anni Xie
- Department of Neonatology, Affiliated Women's Hospital of Jiangnan University, Wuxi Maternity and Child Health Care Hospital, Wuxi, China
| | - Shengpeng Li
- Department of Physiopathology, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Ailing Chen
- Research Institute for Reproductive Health and Genetic Diseases, Affiliated Women's Hospital of Jiangnan University, Wuxi, China
| | - Qin Zhou
- Department of Neonatology, Affiliated Women's Hospital of Jiangnan University, Wuxi Maternity and Child Health Care Hospital, Wuxi, China
- Department of Pediatric, Wuxi Yihe Gynaecology and Obstetrics Hospital, Wuxi, China
| | - Renqiang Yu
- Department of Neonatology, Affiliated Women's Hospital of Jiangnan University, Wuxi Maternity and Child Health Care Hospital, Wuxi, China
- Research Institute for Reproductive Health and Genetic Diseases, Affiliated Women's Hospital of Jiangnan University, Wuxi, China
| |
Collapse
|
3
|
Yang X, Jin Z, Wang X, Wu J, Yu W, Yao S, Zhang L, Gan C. Nesfatin-1 alleviates hyperoxia-induced lung injury in newborn mice by inhibiting oxidative stress through regulating SIRT1/PGC-1α pathway. Cytokine 2023; 169:156239. [PMID: 37301191 DOI: 10.1016/j.cyto.2023.156239] [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: 04/22/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 06/12/2023]
Abstract
Bronchopulmonary dysplasia (BPD) is a pulmonary disease commonly observed in premature infants and it is reported that oxidative stress is a critical induction factor in BPD and is considered as a promising target for treating BPD. Nesfatin-1 is a brain-gut peptide with inhibitory effects on food intake, which is recently evidenced to show suppressive effect on oxidative stress. The present study aims to explore the therapeutic effect and mechanism of Nesfatin-1 in BPD mice. AECIIs were extracted from newborn rats and exposed to hyperoxia for 24 h, followed by treatment with 5 and 10 nM Nesfatin-1. Declined cell viability, increased apoptotic rate, upregulated Bax, downregulated Bcl-2, increased release of ROS and MDA, and suppressed SOD activity were observed in hyperoxia-treated AECIIs, which were extremely reversed by Nesfatin-1. Newborn rats were exposed to hyperoxia, followed by treated with 10 μg/kg Nesfatin-1 and 20 μg/kg Nesfatin-1. Severe pathological changes, elevated MDA level, and declined SOD activity were observed in lung tissues of BPD mice, which were rescued by Nesfatin-1. Furthermore, the protective effect of Nesfatin-1 on hyperoxia-challenged AECIIs was abolished by silencing SIRT1. Collectively, Nesfatin-1 alleviated hyperoxia-induced lung injury in newborn mice by inhibiting oxidative stress through regulating SIRT1/PGC-1α pathway.
Collapse
Affiliation(s)
- Xiaoting Yang
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Zhan Jin
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Xi Wang
- Department of Urology, Quzhou People's Hospital, Min Jiang Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Junmei Wu
- Department of Burns Surgery, Quzhou Hospital of Zhejiang Medical Health Group, Wen Chang Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Wenfu Yu
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Shuihong Yao
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Lixin Zhang
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Chunchun Gan
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China.
| |
Collapse
|
4
|
Ghasemzadeh Rahbardar M, Hosseinzadeh H. A review of how the saffron (Crocus sativus) petal and its main constituents interact with the Nrf2 and NF-κB signaling pathways. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:1879-1909. [PMID: 37067583 DOI: 10.1007/s00210-023-02487-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/04/2023] [Indexed: 04/18/2023]
Abstract
The primary by-product of saffron (Crocus sativus) processing is saffron petals, which are produced in large quantities but are discarded. The saffron petals contain a variety of substances, including alkaloids, anthocyanins, flavonoids, glycosides, kaempferol, and minerals. Pharmacological investigations revealed the antibacterial, antidepressant, antidiabetic, antihypertensive, antinociceptive, antispasmodic, antitussive, hepatoprotective, immunomodulatory, and renoprotective properties of saffron petals, which are based on their antioxidant, anti-inflammatory, and antiapoptotic effects. The nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway protects against oxidative stress, carcinogenesis, and inflammation. Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-ĸB) is a protein complex involved in approximately all animal cells and participates in different biological procedures such as apoptosis, cell growth, development, deoxyribonucleic acid (DNA) transcription, immune response, and inflammation. The pharmacological properties of saffron and its compounds are discussed in this review, along with their associated modes of action, particularly the Nrf2 and NF-ĸB signaling pathways. Without considering a time constraint, our team conducted this review using search engines or electronic databases like PubMed, Scopus, and Web of Science. Saffron petals and their main constituents may have protective effects in numerous organs such as the brain, colon, heart, joints, liver, lung, and pancreas through several mechanisms, including the Nrf2/heme oxygenase-1 (HO-1)/Kelch-like ECH-associated protein 1 (Keap1) signaling cascade, which would then result in its antioxidant, anti-inflammatory, antiapoptotic, and therapeutic effects.
Collapse
Affiliation(s)
| | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
5
|
Kryeziu I, Reçica S, Thaçi Q, Kurshumliu F, Hadzi-Petrushev N, Basholli-Salihu M, Mladenov M, Sopi RB. Quercetin supplementation attenuates airway hyperreactivity and restores airway relaxation in rat pups exposed to hyperoxia. Exp Biol Med (Maywood) 2023; 248:1492-1499. [PMID: 37837396 PMCID: PMC10666724 DOI: 10.1177/15353702231199468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 07/20/2023] [Indexed: 10/16/2023] Open
Abstract
Hyperoxia exposure of immature lungs contributes to lung injury and airway hyperreactivity. Up to now, treatments of airway hyperreactivity induced by hyperoxia exposure have been ineffective. The aim of this study was to investigate the effects of quercetin on hyperoxia-induced airway hyperreactivity, impaired relaxation, and lung inflammation. Newborn rats were exposed to hyperoxia (FiO2 > 95%) or ambient air (AA) for seven days. Subgroups were injected with quercetin (10 mg·kg-1·day-1). After exposures, tracheal cylinders were prepared for in vitro wire myography. Contraction to methacholine was measured in the presence or absence of organ bath quercetin and/or Nω-nitro-L-arginine methyl ester (L-NAME). Relaxation responses were evoked in preconstricted tissues using electrical field stimulation (EFS). Lung tumor necrosis factor-alpha (TNF-α) and interleukin-1β (IL-1β) levels were measured by enzyme-linked immunosorbent assay (ELISA). A P < 0.05 was considered statistically significant. Contractile responses of tracheal smooth muscle (TSM) of hyperoxic animals were significantly increased compared with AA animals (P < 0.001). Treatment with quercetin significantly reduced contraction in hyperoxic groups compared with hyperoxic control (P < 0.01), but did not have any effect in AA groups. In hyperoxic animals, relaxation of TSM was significantly reduced compared with AA animals (P < 0.001), while supplementation of quercetin restored the lost relaxation in hyperoxic groups. Incubation of preparations in L-NAME significantly reduced the quercetin effects on both contraction and relaxation (P < 0.01). Treatment of hyperoxic animals with quercetin significantly decreased the expression of TNF-α and IL-1β compared with hyperoxic controls (P < 0.001 and P < 0.01, respectively).The findings of this study demonstrate the protective effect of quercetin on airway hyperreactivity and suggest that quercetin might serve as a novel therapy to prevent and treat neonatal hyperoxia-induced airway hyperreactivity and inflammation.
Collapse
Affiliation(s)
- Islam Kryeziu
- Faculty of Medicine, University of Prishtina, 10 000 Prishtina, Kosovo
| | - Shkëlzen Reçica
- Faculty of Medicine, University of Prishtina, 10 000 Prishtina, Kosovo
| | - Qëndrim Thaçi
- Faculty of Medicine, University of Prishtina, 10 000 Prishtina, Kosovo
| | - Fisnik Kurshumliu
- Faculty of Medicine, University of Prishtina, 10 000 Prishtina, Kosovo
| | - Nikola Hadzi-Petrushev
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University in Skopje, 1000 Skopje, North Macedonia
| | | | - Mitko Mladenov
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University in Skopje, 1000 Skopje, North Macedonia
| | - Ramadan B Sopi
- Faculty of Medicine, University of Prishtina, 10 000 Prishtina, Kosovo
| |
Collapse
|
6
|
Yao H, Wallace J, Peterson AL, Scaffa A, Rizal S, Hegarty K, Maeda H, Chang JL, Oulhen N, Kreiling JA, Huntington KE, De Paepe ME, Barbosa G, Dennery PA. Timing and cell specificity of senescence drives postnatal lung development and injury. Nat Commun 2023; 14:273. [PMID: 36650158 PMCID: PMC9845377 DOI: 10.1038/s41467-023-35985-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/10/2023] [Indexed: 01/19/2023] Open
Abstract
Senescence causes age-related diseases and stress-related injury. Paradoxically, it is also essential for organismal development. Whether senescence contributes to lung development or injury in early life remains unclear. Here, we show that lung senescence occurred at birth and decreased throughout the saccular stage in mice. Reducing senescent cells at this stage disrupted lung development. In mice (<12 h old) exposed to hyperoxia during the saccular stage followed by air recovery until adulthood, lung senescence increased particularly in type II cells and secondary crest myofibroblasts. This peaked during the alveolar stage and was mediated by the p53/p21 pathway. Decreasing senescent cells during the alveolar stage attenuated hyperoxia-induced alveolar and vascular simplification. Conclusively, early programmed senescence orchestrates postnatal lung development whereas later hyperoxia-induced senescence causes lung injury through different mechanisms. This defines the ontogeny of lung senescence and provides an optimal therapeutic window for mitigating neonatal hyperoxic lung injury by inhibiting senescence.
Collapse
Affiliation(s)
- Hongwei Yao
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA.
| | - Joselynn Wallace
- Center for Computational Biology of Human Disease and Center for Computation and Visualization, Brown University, Providence, RI, 02912, USA
| | - Abigail L Peterson
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Alejandro Scaffa
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Salu Rizal
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Katy Hegarty
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Hajime Maeda
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Jason L Chang
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Nathalie Oulhen
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Jill A Kreiling
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Kelsey E Huntington
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School, Brown University, Providence, RI, 02903, USA
| | - Monique E De Paepe
- Department of Pathology, Women and Infants Hospital, Providence, RI, 02905, USA
| | - Guilherme Barbosa
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Phyllis A Dennery
- Department of Molecular Biology, Cell Biology & Biochemistry, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA.
- Department of Pediatrics, Warren Alpert Medical School of Brown University, Providence, RI, 02903, USA.
| |
Collapse
|
7
|
Alva R, Mirza M, Baiton A, Lazuran L, Samokysh L, Bobinski A, Cowan C, Jaimon A, Obioru D, Al Makhoul T, Stuart JA. Oxygen toxicity: cellular mechanisms in normobaric hyperoxia. Cell Biol Toxicol 2022; 39:111-143. [PMID: 36112262 PMCID: PMC9483325 DOI: 10.1007/s10565-022-09773-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/07/2022] [Indexed: 12/15/2022]
Abstract
In clinical settings, oxygen therapy is administered to preterm neonates and to adults with acute and chronic conditions such as COVID-19, pulmonary fibrosis, sepsis, cardiac arrest, carbon monoxide poisoning, and acute heart failure. In non-clinical settings, divers and astronauts may also receive supplemental oxygen. In addition, under current standard cell culture practices, cells are maintained in atmospheric oxygen, which is several times higher than what most cells experience in vivo. In all the above scenarios, the elevated oxygen levels (hyperoxia) can lead to increased production of reactive oxygen species from mitochondria, NADPH oxidases, and other sources. This can cause cell dysfunction or death. Acute hyperoxia injury impairs various cellular functions, manifesting ultimately as physiological deficits. Chronic hyperoxia, particularly in the neonate, can disrupt development, leading to permanent deficiencies. In this review, we discuss the cellular activities and pathways affected by hyperoxia, as well as strategies that have been developed to ameliorate injury.
Collapse
Affiliation(s)
- Ricardo Alva
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Maha Mirza
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Adam Baiton
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Lucas Lazuran
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Lyuda Samokysh
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Ava Bobinski
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Cale Cowan
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Alvin Jaimon
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Dede Obioru
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Tala Al Makhoul
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Jeffrey A Stuart
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada.
| |
Collapse
|
8
|
Gasmi A, Mujawdiya PK, Lysiuk R, Shanaida M, Peana M, Gasmi Benahmed A, Beley N, Kovalska N, Bjørklund G. Quercetin in the Prevention and Treatment of Coronavirus Infections: A Focus on SARS-CoV-2. Pharmaceuticals (Basel) 2022; 15:1049. [PMID: 36145270 PMCID: PMC9504481 DOI: 10.3390/ph15091049] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/17/2022] [Accepted: 08/20/2022] [Indexed: 12/15/2022] Open
Abstract
The COVID-19 outbreak seems to be the most dangerous challenge of the third millennium due to its highly contagious nature. Amongst natural molecules for COVID-19 treatment, the flavonoid molecule quercetin (QR) is currently considered one of the most promising. QR is an active agent against SARS and MERS due to its antimicrobial, antiviral, anti-inflammatory, antioxidant, and some other beneficial effects. QR may hold therapeutic potential against SARS-CoV-2 due to its inhibitory effects on several stages of the viral life cycle. In fact, QR inhibits viral entry, absorption, and penetration in the SARS-CoV virus, which might be at least partly explained by the ability of QR and its derivatives to inhibit 3-chymotrypsin-like protease (3CLpro) and papain-like protease (PLpro). QR is a potent immunomodulatory molecule due to its direct modulatory effects on several immune cells, cytokines, and other immune molecules. QR-based nanopreparations possess enhanced bioavailability and solubility in water. In this review, we discuss the prospects for the application of QR as a preventive and treatment agent for COVID-19. Given the multifactorial beneficial action of QR, it can be considered a very valid drug as a preventative, mitigating, and therapeutic agent of COVID-19 infection, especially in synergism with zinc, vitamins C, D, and E, and other polyphenols.
Collapse
Affiliation(s)
- Amin Gasmi
- Société Francophone de Nutrithérapie et de Nutrigénétique Appliquée, 69100 Villeurbanne, France
| | | | - Roman Lysiuk
- Department of Pharmacognosy and Botany, Danylo Halytsky Lviv National Medical University, 79010 Lviv, Ukraine
- CONEM Ukraine Life Science Research Group, Danylo Halytsky Lviv National Medical University, 79010 Lviv, Ukraine
| | - Mariia Shanaida
- I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Massimiliano Peana
- Department of Chemical, Physics, Mathematics and Natural Sciences, University of Sassari, 07100 Sassari, Italy
| | - Asma Gasmi Benahmed
- Académie Internationale de Médecine Dentaire Intégrative, 75000 Paris, France
| | - Nataliya Beley
- I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | | | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine (CONEM), Toften 24, 8610 Mo i Rana, Norway
| |
Collapse
|
9
|
OGG1 in Lung—More than Base Excision Repair. Antioxidants (Basel) 2022; 11:antiox11050933. [PMID: 35624797 PMCID: PMC9138115 DOI: 10.3390/antiox11050933] [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: 04/09/2022] [Revised: 05/03/2022] [Accepted: 05/07/2022] [Indexed: 12/04/2022] Open
Abstract
As the organ executing gas exchange and directly facing the external environment, the lungs are challenged continuously by various stimuli, causing the disequilibration of redox homeostasis and leading to pulmonary diseases. The breakdown of oxidants/antioxidants system happens when the overproduction of free radicals results in an excess over the limitation of cleaning capability, which could lead to the oxidative modification of macromolecules including nucleic acids. The most common type of oxidative base, 8-oxoG, is considered the marker of DNA oxidative damage. The appearance of 8-oxoG could lead to base mismatch and its accumulation might end up as tumorigenesis. The base 8-oxoG was corrected by base excision repair initiated by 8-oxoguanine DNA glycosylase-1 (OGG1), which recognizes 8-oxoG from the genome and excises it from the DNA double strand, generating an AP site for further processing. Aside from its function in DNA damage repairment, it has been reported that OGG1 takes part in the regulation of gene expression, derived from its DNA binding characteristic, and showed impacts on inflammation. Researchers believe that OGG1 could be the potential therapy target for relative disease. This review intends to make an overall summary of the mechanism through which OGG1 regulates gene expression and the role of OGG1 in pulmonary diseases.
Collapse
|
10
|
The Aryl Hydrocarbon Receptor (AHR): A Novel Therapeutic Target for Pulmonary Diseases? Int J Mol Sci 2022; 23:ijms23031516. [PMID: 35163440 PMCID: PMC8836075 DOI: 10.3390/ijms23031516] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 12/30/2021] [Accepted: 01/13/2022] [Indexed: 01/08/2023] Open
Abstract
The aryl hydrocarbon receptor (AHR) is a cytoplasmic transcription factor that is well-known for regulating xenobiotic metabolism. Studies in knockout and transgenic mice indicate that the AHR plays a vital role in the development of liver and regulation of reproductive, cardiovascular, hematopoietic, and immune homeostasis. In this focused review on lung diseases associated with acute injury and alveolar development, we reviewed and summarized the current literature on the mechanistic role(s) and therapeutic potential of the AHR in acute lung injury, chronic obstructive pulmonary disease, and bronchopulmonary dysplasia (BPD). Pre-clinical studies indicate that endogenous AHR activation is necessary to protect neonatal and adult lungs against hyperoxia- and cigarette smoke-induced injury. Our goal is to provide insight into the high translational potential of the AHR in the meaningful management of infants and adults with these lung disorders that lack curative therapies.
Collapse
|
11
|
Zhong Y, Zhang Z, Chen X. Inhibition of miR-21 improves pulmonary vascular responses in bronchopulmonary dysplasia by targeting the DDAH1/ADMA/NO pathway. Open Med (Wars) 2022; 17:1949-1964. [PMID: 36561848 PMCID: PMC9743197 DOI: 10.1515/med-2022-0584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 09/07/2022] [Accepted: 10/02/2022] [Indexed: 12/14/2022] Open
Abstract
miR-21 has been confirmed to be overexpressed in neonatal rat lungs with hyperoxia-mediated bronchopulmonary dysplasia (BPD). The specific function of miR-21 in BPD is still unclear. We established the hyperoxia-induced BPD rat model in vivo and the hyperoxia-induced pulmonary microvascular endothelial cells (PMVECs) model in vitro. Transwell assay was utilized to detect the migratory capability of PMVECs. Tube formation assay was utilized to measure angiogenesis ability. ELISA was utilized to test nitric oxide (NO) production and the intracellular and extracellular Asymmetric Dimethylarginine (ADMA) concentration. Furthermore, the interaction between miR-21 and dimethylarginine dimethylaminohydrolase 1 (DDAH1) was evaluated using luciferase reporter assay. We found that miR-21 expression in PMVECs was increased by hyperoxia stimulation. Inhibition of miR-21 improved the migratory and angiogenic activities of PMVECs and overexpression of miR-21 exerted the opposite effects. Furthermore, knockdown of miR-21 increased NO production and decreased intracellular and extracellular ADMA concentration in hyperoxia-treated PMVECs. Next we proved that miR-21 could bind to DDAH1 and negatively regulate its expression. Rescues assays showed that DDAH1 knockdown reversed the effects of miR-21 depletion on hyperoxia-mediated PMVEC functions, NO production, and ADMA concentration. Importantly, miR-21 downregulation restored alveolarization and vascular density in BPD rats. This study demonstrates that inhibition of miR-21 improves pulmonary vascular responses in BPD by targeting the DDAH1/ADMA/NO pathway.
Collapse
Affiliation(s)
- Ying Zhong
- Department of Child Health Care, The First Affiliated Hospital of Nanjing Medical University, 368 Jiangdong North Road, Nanjing 210036, Jiangsu, China
| | - Zhiqun Zhang
- Department of Neonatology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310000, Zhejiang, China
| | - Xiaoqing Chen
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210036, Jiangsu, China
| |
Collapse
|
12
|
Role of Human NADPH Quinone Oxidoreductase (NQO1) in Oxygen-Mediated Cellular Injury and Oxidative DNA Damage in Human Pulmonary Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5544600. [PMID: 34691356 PMCID: PMC8536466 DOI: 10.1155/2021/5544600] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 09/03/2021] [Indexed: 12/16/2022]
Abstract
Supplemental oxygen administration is frequently used in premature infants and adults with pulmonary insufficiency. NADPH quinone oxidoreductase (NQO1) protects cells from oxidative injury by decreasing reactive oxygen species (ROS). In this investigation, we tested the hypothesis that overexpression of NQO1 in BEAS-2B cells will mitigate cell injury and oxidative DNA damage caused by hyperoxia and that A-1221C single nucleotide polymorphism (SNP) in the NQO1 promoter would display altered susceptibility to hyperoxia-mediated toxicity. Using stable transfected BEAS-2B cells, we demonstrated that hyperoxia decreased cell viability in control cells (Ctr), but this effect was differentially mitigated in cells overexpressing NQO1 under the regulation of the CMV viral promoter, the wild-type NQO1 promoter (NQO1-NQO1), or the NQO1 promoter carrying the SNP. Interestingly, hyperoxia decreased the formation of bulky oxidative DNA adducts or 8-hydroxy-2′-deoxyguanosine (8-OHdG) in Ctr cells. qPCR studies showed that mRNA levels of CYP1A1 and NQO1 were inversely related to DNA adduct formation, suggesting the protective role of these enzymes against oxidative DNA injury. In SiRNA experiments entailing the NQO1-NQO1 promoter, hyperoxia caused decreased cell viability, and this effect was potentiated in cells treated with CYP1A1 siRNA. We also found that hyperoxia caused a marked induction of DNA repair genes DDB2 and XPC in Ctr cells, supporting the idea that hyperoxia in part caused attenuation of bulky oxidative DNA lesions by enhancing nucleotide excision repair (NER) pathways. In summary, our data support a protective role for human NQO1 against oxygen-mediated toxicity and oxidative DNA lesions in human pulmonary cells, and protection against toxicity was partially lost in SNP cells. Moreover, we also demonstrate a novel protective role for CYP1A1 in the attenuation of oxidative cells and DNA injury. Future studies on the mechanisms of attenuation of oxidative injury by NQO1 should help in developing novel approaches for the prevention/treatment of ARDS in humans.
Collapse
|
13
|
Oxygen Toxicity to the Immature Lung-Part I: Pathomechanistic Understanding and Preclinical Perspectives. Int J Mol Sci 2021; 22:ijms222011006. [PMID: 34681665 PMCID: PMC8540649 DOI: 10.3390/ijms222011006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 01/13/2023] Open
Abstract
In utero, the fetus and its lungs develop in a hypoxic environment, where HIF-1α and VEGFA signaling constitute major determinants of further development. Disruption of this homeostasis after preterm delivery and extrauterine exposure to high fractions of oxygen are among the key events leading to bronchopulmonary dysplasia (BPD). Reactive oxygen species (ROS) production constitutes the initial driver of pulmonary inflammation and cell death, altered gene expression, and vasoconstriction, leading to the distortion of further lung development. From preclinical studies mainly performed on rodents over the past two decades, the deleterious effects of oxygen toxicity and the injurious insults and downstream cascades arising from ROS production are well recognized. This article provides a concise overview of disease drivers and different therapeutic approaches that have been successfully tested within experimental models. Despite current studies, clinical researchers are still faced with an unmet clinical need, and many of these strategies have not proven to be equally effective in clinical trials. In light of this challenge, adapting experimental models to the complexity of the clinical situation and pursuing new directions constitute appropriate actions to overcome this dilemma. Our review intends to stimulate research activities towards the understanding of an important issue of immature lung injury.
Collapse
|
14
|
Khazdair MR, Saadat S, Aslani MR, Shakeri F, Boskabady MH. Experimental and clinical studies on the effects of Portulaca oleracea L. and its constituents on respiratory, allergic, and immunologic disorders, a review. Phytother Res 2021; 35:6813-6842. [PMID: 34462981 DOI: 10.1002/ptr.7268] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 12/13/2022]
Abstract
Various pharmacological effects for Portulaca oleracea were shown in previous studies. Therefore, the effects of P. oleracea and its derivatives on respiratory, allergic, and immunologic diseases according to update experimental and clinical studies are provided in this review article. PubMed/Medline, Scopus, and Google Scholar were searched using appropriate keywords until the end of December 2020. The effects of P. oleracea and its constituents such as quercetin and kaempferol on an animal model of asthma were shown. Portulaca oleracea and its constituents also showed therapeutic effects on chronic obstructive pulmonary disease and chronic bronchitis in both experimental and clinical studies. The possible bronchodilatory effect of P. oleracea and its ingredients was also reported. Portulaca oleracea and its constituents showed the preventive effect on lung cancer and a clinical study showed the effect of P. oleracea on patients with lung adenocarcinoma. In addition, a various constituents of P. oleracea including, quercetin and kaempferol showed therapeutic effects on lung infections. This review indicates the therapeutic effect of P. oleracea and its constituents on various lung and allergic disorders but more clinical studies are required to establish the clinical efficacy of this plant and its constituents on lung and allergic disorders.
Collapse
Affiliation(s)
- Mohammad Reza Khazdair
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Saeideh Saadat
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Physiology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mohammad Reza Aslani
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Lung Inflammatory Diseases Research Center, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Farzaneh Shakeri
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran.,Department of Physiology and Pharmacology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mohammad Hossein Boskabady
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
15
|
Huang LT, Chou HC, Chen CM. Roxadustat attenuates hyperoxia-induced lung injury by upregulating proangiogenic factors in newborn mice. Pediatr Neonatol 2021; 62:369-378. [PMID: 33865748 DOI: 10.1016/j.pedneo.2021.03.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 01/28/2021] [Accepted: 03/17/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Premature infants who require oxygen therapy for respiratory distress syndrome often develop bronchopulmonary dysplasia, a chronic lung disease characterized by interrupted alveologenesis. Disrupted angiogenesis inhibits alveologenesis; however, the mechanisms through which disrupted angiogenesis affects lung development are poorly understood. Hypoxia-inducible factors (HIFs) are transcription factors that activate multiple oxygen-sensitive genes, including those encoding for vascular endothelial growth factor (VEGF). However, the HIF modulation of angiogenesis in hyperoxia-induced lung injury is not fully understood. Therefore, we explored the effects of roxadustat, an HIF stabilizer that has been shown to promote angiogenesis, in regulating pulmonary angiogenesis on hyperoxia exposure. METHODS C57BL6 mice pups reared in room air and 85% O2 were injected with phosphate-buffered saline or 5 mg/kg or 10 mg/kg roxadustat. Their daily body weight and survival rate were recorded. Their lungs were excised for histology and angiogenic factor expression analyses on postnatal Day 7. RESULTS Exposure to neonatal hyperoxia reduced body weight; survival rate; and expressions of von Willebrand factor, HIF-1α, phosphor mammalian target of rapamycin, VEGF, and endothelial nitric oxide synthase and increased the mean linear intercept values in the pups. Roxadustat administration reversed these effects. CONCLUSION Hyperoxia suppressed pulmonary vascular development and the expression of proangiogenic factors. Roxadustat promoted pulmonary angiogenesis on hyperoxia exposure by stabilizing HIF-1α and upregulating the expression of proangiogenic factors, indicating its potential in clinical and therapeutic applications.
Collapse
Affiliation(s)
- Liang-Ti Huang
- Department of Pediatrics, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hsiu-Chu Chou
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chung-Ming Chen
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan.
| |
Collapse
|
16
|
Tao X, Fang Y, Huo C. Long non-coding RNA Rian protects against experimental bronchopulmonary dysplasia by sponging miR-421. Exp Ther Med 2021; 22:781. [PMID: 34055080 PMCID: PMC8145903 DOI: 10.3892/etm.2021.10213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 03/18/2021] [Indexed: 12/12/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a frequent complication characterized by accelerated lung alveolarization in newborns. Long non-coding RNAs (lncRNAs) and microRNAs (miRs) are regarded as essential regulators in various diseases, including BPD. However, the detailed mechanism of the functions of RNA imprinted and accumulated in nucleus (Rian) lncRNA in the progression of BPD have remained elusive. The aim of the present study was to illustrate the interaction between miR-421 and Rian in BPD models and MLE-12 cells. The ability of Rian to protect neonatal lungs from hyperoxia-induced lung damage was examined. A mouse model of BPD and a hyperoxia-stimulated MLE-12 cell damage model were generated and treated with specific plasmid/mimics for the overexpression of Rian/miR-421. The interaction between miR-421 and Rian was predicted and verified using StarBase and a dual-luciferase reporter assay, respectively. The expression levels of miR-421 or Rian in both tissues and the MLE-12 alveolar epithelial cell line were assessed using reverse transcription-quantitative (RT-q)PCR. As parameters of alveolarization, the mean linear intercept (MLI), radial alveolar count (RAC) and the lung weight/body weight (LW/BW) ratio were measured. Furthermore, RT-qPCR was used to measure mRNA levels of pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) in the lung tissue of mice, and ELISAs were performed to determine the levels of pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) in the supernatant of MLE-12 cells. Cell growth and apoptosis were evaluated using an MTT assay and flow cytometry, respectively. Furthermore, caspase-3 activity was assessed using a caspase-3 activity detection kit. Prediction with StarBase and the dual-luciferase reporter assay revealed that miR-421 directly targeted Rian. RT-qPCR analysis confirmed that Rian was downregulated and miR-421 was upregulated in lung tissues of the mouse model of BPD and in hyperoxia-induced MLE-12 cells. However, the expression of miR-421 was decreased by Rian-overexpression, an effect that was reversed by miR-421 mimics. In addition, BPD was alleviated by Rian-plasmid, as confirmed by the enhanced RAC and reduced MLI and LW/BW ratio. The present results also indicated that Rian-plasmid inhibited the secretion of pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) in BPD mouse serum and hyperoxia-induced MLE-12 cells. In addition, Rian-plasmid eliminated the effect of hyperoxia to inhibit cell viability and induce apoptosis in MLE-12 cells. However, all of these effects of Rian were markedly reversed by miR-421 mimics. The present results indicated that Rian may attenuate hyperoxic damage in neonatal lungs and may serve as a novel molecular target for BPD treatment.
Collapse
Affiliation(s)
- Xifeng Tao
- Department of Pediatrics, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu 222000, P.R. China
| | - Yafei Fang
- Department of Pediatrics, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu 222000, P.R. China
| | - Chen Huo
- Department of Pediatrics, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu 222000, P.R. China
| |
Collapse
|
17
|
Kuper-Sassé ME, MacFarlane PM, Mayer CA, Martin RJ, Prakash YS, Pabelick CM, Raffay TM. Prenatal Maternal Lipopolysaccharide and Mild Newborn Hyperoxia Increase Intrapulmonary Airway but Not Vessel Reactivity in a Mouse Model. CHILDREN-BASEL 2021; 8:children8030195. [PMID: 33807828 PMCID: PMC7998377 DOI: 10.3390/children8030195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 11/29/2022]
Abstract
Maternal infection is a risk for preterm delivery. Preterm newborns often require supplemental oxygen to treat neonatal respiratory distress. Newborn hyperoxia exposure is associated with airway and vascular hyperreactivity, while the complications of maternal infection are variable. In a mouse model of prenatal maternal intraperitoneal lipopolysaccharide (LPS, embryonic day 18) with subsequent newborn hyperoxia (40% oxygen × 7 days) precision-cut living lung slices were used to measure intrapulmonary airway and vascular reactivity at 21 days of age. Hyperoxia increased airway reactivity to methacholine compared to room air controls. Prenatal maternal LPS did not alter airway reactivity in room air. Combined maternal LPS and hyperoxia exposures increased airway reactivity vs. controls, although maximal responses were diminished compared to hyperoxia alone. Vessel reactivity to serotonin did not significantly differ in hyperoxia or room air; however, prenatal maternal LPS appeared to attenuate vessel reactivity in room air. Following room air recovery, LPS with hyperoxia lungs displayed upregulated inflammatory and fibrosis genes compared to room air saline controls (TNFαR1, iNOS, and TGFβ). In this model, mild newborn hyperoxia increases airway but not vessel reactivity. Prenatal maternal LPS did not further increase hyperoxic airway reactivity. However, inflammatory genes remain upregulated weeks after recovery from maternal LPS and newborn hyperoxia exposures.
Collapse
Affiliation(s)
- Margaret E. Kuper-Sassé
- Department of Pediatrics, Case Western Reserve University, UH Rainbow Babies & Children’s Hospital, Cleveland, OH 44106, USA; (M.E.K.-S.); (P.M.M.); (C.A.M.); (R.J.M.)
| | - Peter M. MacFarlane
- Department of Pediatrics, Case Western Reserve University, UH Rainbow Babies & Children’s Hospital, Cleveland, OH 44106, USA; (M.E.K.-S.); (P.M.M.); (C.A.M.); (R.J.M.)
| | - Catherine A. Mayer
- Department of Pediatrics, Case Western Reserve University, UH Rainbow Babies & Children’s Hospital, Cleveland, OH 44106, USA; (M.E.K.-S.); (P.M.M.); (C.A.M.); (R.J.M.)
| | - Richard J. Martin
- Department of Pediatrics, Case Western Reserve University, UH Rainbow Babies & Children’s Hospital, Cleveland, OH 44106, USA; (M.E.K.-S.); (P.M.M.); (C.A.M.); (R.J.M.)
| | - Y. S. Prakash
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN 55905, USA; (Y.S.P.); (C.M.P.)
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - Christina M. Pabelick
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN 55905, USA; (Y.S.P.); (C.M.P.)
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - Thomas M. Raffay
- Department of Pediatrics, Case Western Reserve University, UH Rainbow Babies & Children’s Hospital, Cleveland, OH 44106, USA; (M.E.K.-S.); (P.M.M.); (C.A.M.); (R.J.M.)
- Correspondence: ; Tel.: +216-844-3387
| |
Collapse
|
18
|
Li X, Wang Q, Luo T, Li T. Decreased neutrophil levels in bronchopulmonary dysplasia infants. Pediatr Neonatol 2020; 61:637-644. [PMID: 32863167 DOI: 10.1016/j.pedneo.2020.08.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 06/17/2020] [Accepted: 08/12/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Previous studies have indicated that inflammation plays an important role in the occurrence and development of bronchopulmonary dysplasia (BPD); however, there were rare researches about the changes of neutrophils and their influence on the prognosis of BPD. Hence, we aimed to explore the changes in the number of peripheral blood neutrophils (PBNs), and the relationship between these changes and susceptibility to pulmonary infection among children with BPD. METHODS Firstly, the gene expression of lung tissues and the number of PBNs were respectively detected by RNA sequencing and complete blood count in the 85% O2-induced BPD model rats. Then it was analyzed the number of PBNs after birth and the incidence of pneumonia within 6 months of corrected age (CA) after discharge among full-term infants (FTIs: gestational age [GA] between 370/7 and 416/7 weeks, n = 88), preterm infants with (PTIs-BPD: GA <32 weeks, n = 35) or without BPD (PTIs-nBPD: GA <32 weeks, n = 41). RESULTS The levels of S100A8 and S100A9 mRNAs were significantly decreased in the lungs of BPD rats. Moreover, the number of PBNs was also decreased in BPD rats. The number of PBNs at birth in FTIs was significantly greater than that in PTIs-BPD or in PTIs-nBPD (p < 0.001), while those between PTIs-BPD and PTIs-nBPD showed no significant difference (p > 0.05). Although the peripheral blood neutrophils decreased overall after birth in both PTIs-nBPD and PTIs-BPD groups, only the reduction in the PTIs-BPD group was significant (p < 0.001). Importantly, at 36-37 weeks of postmenstrual age (PMA), the number of PBNs in PTIs-BPD was significantly fewer than that in PTIs-nBPD (p < 0.001). In addition, PTIs-BPD had a significantly higher incidence of pneumonia than PTIs-nBPD within 6 months of CA after discharge (p < 0.01). CONCLUSION The number of PBNs in PTIs-BPD decreased progressively when compared to that in PTIs-nBPD, which might contribute to their susceptibility to pulmonary infection.
Collapse
Affiliation(s)
- Xingchao Li
- Department of Pediatrics, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China; Institute of Pediatric Research, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China; Institute of Pediatric Research, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China
| | - Qian Wang
- Department of Cardiology, Affiliated Dongfeng Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China
| | - Ting Luo
- Department of Dermatology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China
| | - Tao Li
- Department of Pediatrics, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China; Institute of Pediatric Research, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China; Institute of Pediatric Research, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China.
| |
Collapse
|
19
|
Ji L, Liu Z, Dong C, Wu D, Yang S, Wu L. LncRNA CASC2 targets CAV1 by competitively binding with microRNA-194-5p to inhibit neonatal lung injury. Exp Mol Pathol 2020; 118:104575. [PMID: 33212124 DOI: 10.1016/j.yexmp.2020.104575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 10/08/2020] [Accepted: 11/11/2020] [Indexed: 10/23/2022]
Abstract
Long non-coding RNAs (lncRNAs) are vital regulators of different biological processes during bronchopulmonary dysplasia (BPD). This study was conducted to probe the biological roles of lncRNA CASC2 in the pathogenesis of BPD and neonatal lung injury. Firstly, a hyperoxia-induced mouse model with BPD was established. LncRNAs with differential expression in lung tissues of normal and BPD mice were analyzed by microarray. An adenovirus vector overexpressing CASC2 was constructed and its functions on BPD symptoms in model mice were analyzed. Gain- and loss-of function studies of CASC2 were performed in a bronchial epithelial cell line BEAS-2B to determine its role in cell apoptosis and proliferation under normoxic and hyperoxic conditions. The downstream mechanical molecules of lncRNA CASC2 were predicted on bioinformatics systems and confirmed by luciferase assays. The functional interactions among lncRNA CASC2, miR-194-5p, and CAV1 in BPD were determined by rescue experiments. Consequently, lncRNA CASC2 was found to be poorly expressed in BPD mice. Besides, overexpressed CASC2 was found to relieve the symptoms of BPD in neonatal mice and suppress apoptosis as well as promote proliferation in hyperoxia-induced BEAS-2B cells. Importantly, CASC2 was found to regulate CAV1 expression by competitively binding to miR-194-5p and downregulate the activity of the TGF-β1 signaling pathway, thereby suppressing lung injury. Either miR-194-5p upregulation or CAV1 downregulation blocked the roles of CASC2. To sum up, this study evidenced that CASC2 alleviates hyperoxia-induced lung injury in mouse and cell models with the involvement of a miR-194-5p-CAV1 crosstalk and the TGF-β1 inactivation.
Collapse
Affiliation(s)
- Lili Ji
- Department of Paediatrics, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing 100043, PR China
| | - Zunjie Liu
- Department of Neonatology, Beijing Obsterics and Gynecology Hospital, Capital Medical University, Beijing 100026, PR China
| | - Chengya Dong
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, PR China
| | - Dongping Wu
- Department of Neonatology, Yiwu Central Hospital, Yiwu 322000, Zhejiang, PR China
| | - Shimei Yang
- Department of Pediatrics, Yiwu Maternity and Children Hospital, Yiwu 322000, Zhejiang, PR China
| | - Limei Wu
- Department of Pediatrics, Yiwu Maternity and Children Hospital, Yiwu 322000, Zhejiang, PR China.
| |
Collapse
|
20
|
Jiao B, Tang Y, Liu S, Guo C. Tetrandrine attenuates hyperoxia-induced lung injury in newborn rats via NF-κB p65 and ERK1/2 pathway inhibition. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1018. [PMID: 32953818 PMCID: PMC7475456 DOI: 10.21037/atm-20-5573] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background Bronchopulmonary dysplasia (BPD) is an important cause of respiratory illness in preterm newborns that results in significant morbidity and mortality. Hyperoxia is a critical factor in the pathogenesis of BPD, hyperoxia-induced lung injury model has similar pathological manifestations as human BPD. Tetrandrine (Tet) is known to suppress oxidative stress, apoptosis and inflammation. Thus it has been used to prevent organ injuries. However, the protective effect of Tet against hyperoxia-induced lung injury in newborn rats has not been reported. Methods A hyperoxia-induced lung injury model was established using newborn rats exposed to high O2 levels. The models were treated with various concentrations of Tet, and a lung function test was conducted. Then, the lung tissues and blood were collected to detect the effect of Tet on cell apoptosis, inflammatory response, and fibrosis. The effect of Tet on nuclear factor-kappa B (NF-κB) and extracellular signal-regulated kinase1/2 (ERK1/2) pathways was also determined. Results Lung function was decreased in hyperoxia-induced rats, and Tet could reverse this inhibiting effect. For oxidative stress, Tet caused an increase in the levels of antioxidant enzymes. The apoptosis rate and apoptosis-related proteins were decreased in hyperoxia-induced rats after Tet treatment. Additionally, Tet treatment could reduce inflammatory factor levels, while increasing CD4+IFN-γ+ T cell levels and decreasing CD4+IL-4+ T cell levels. Tet treatment was also able to inhibit the expression of fibrosis-related markers and NF-κB and ERK1/2 pathways. Conclusions Tet demonstrated potent activity against hyperoxia-induced lung injury in newborn rats through NF-κB and ERK1/2 pathway inhibition.
Collapse
Affiliation(s)
- Beibei Jiao
- Department of Pediatrics, The first Affiliated Hospital of Henan University of Science and Technology, Luoyang, China
| | - Yan Tang
- Department of Pediatrics, The first Affiliated Hospital of Henan University of Science and Technology, Luoyang, China
| | - Shan Liu
- Department of Pediatrics, The first Affiliated Hospital of Henan University of Science and Technology, Luoyang, China
| | - Chunyan Guo
- Department of Pediatrics, The first Affiliated Hospital of Henan University of Science and Technology, Luoyang, China
| |
Collapse
|
21
|
Sun C, Zhang S, Wang J, Jiang W, Xin Q, Chen X, Zhang Z, Luan Y. EPO enhances the protective effects of MSCs in experimental hyperoxia-induced neonatal mice by promoting angiogenesis. Aging (Albany NY) 2020; 11:2477-2487. [PMID: 31035257 PMCID: PMC6519997 DOI: 10.18632/aging.101937] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 04/24/2019] [Indexed: 02/06/2023]
Abstract
Bronchopulmonary dysplasia (BPD) is the most common type of chronic lung disease in infancy; however, there is no effective treatment for it. In the present study, a neonatal mouse BPD model was established by continuous exposure to high oxygen (HO) levels. Mice were divided randomly into 5 groups: control, BPD, EPO, MSCs, and MSCs+EPO. At 2 weeks post-treatment, vessel density and the expression levels of endothelial growth factor (VEGF), stromal cell-derived factor-1 (SDF-1), and its receptor C-X-C chemokine receptor type 4 (CXCR4) were significantly increased in the MSC+EPO group compared with the EPO or MSCs group alone; moreover, EPO significantly enhanced MSCs proliferation, migration, and anti-apoptosis ability in vitro. Furthermore, the MSCs could differentiate into cells that were positive for the type II alveolar epithelial cell (AECII)-specific marker surfactant protein-C, but not positive for the AECI-specific marker aquaporin 5. Our present results suggested that MSCs in combination with EPO could significantly attenuate lung injury in a neonatal mouse model of BPD. The mechanism may be by the indirect promotion of angiogenesis, which may involve the SDF-1/CXCR4 axis.
Collapse
Affiliation(s)
- Chao Sun
- Central Research Laboratory, The Second Hospital of Shandong University, Jinan, PR China
| | - Shanshan Zhang
- Department of Emergency, The Second Hospital of Shandong University, Jinan, PR China
| | - Jue Wang
- Central Research Laboratory, The Second Hospital of Shandong University, Jinan, PR China
| | - Wen Jiang
- Central Research Laboratory, The Second Hospital of Shandong University, Jinan, PR China
| | - Qian Xin
- Central Research Laboratory, The Second Hospital of Shandong University, Jinan, PR China
| | - Xiaojing Chen
- Central Research Laboratory, The Second Hospital of Shandong University, Jinan, PR China
| | - Zhaohua Zhang
- Department of Pediatrics, The Second Hospital of Shandong University, Jinan, PR China
| | - Yun Luan
- Central Research Laboratory, The Second Hospital of Shandong University, Jinan, PR China
| |
Collapse
|
22
|
Zhang B, Zhang D, Lv JT, Sa RN, Ma BB, Zhang XM, Lin ZJ. Molecular insight into the therapeutic promise of xuebijing injection against coronavirus disease 2019. WORLD JOURNAL OF TRADITIONAL CHINESE MEDICINE 2020. [DOI: 10.4103/wjtcm.wjtcm_22_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
23
|
Lignelli E, Palumbo F, Myti D, Morty RE. Recent advances in our understanding of the mechanisms of lung alveolarization and bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2019; 317:L832-L887. [PMID: 31596603 DOI: 10.1152/ajplung.00369.2019] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common cause of morbidity and mortality in preterm infants. A key histopathological feature of BPD is stunted late lung development, where the process of alveolarization-the generation of alveolar gas exchange units-is impeded, through mechanisms that remain largely unclear. As such, there is interest in the clarification both of the pathomechanisms at play in affected lungs, and the mechanisms of de novo alveoli generation in healthy, developing lungs. A better understanding of normal and pathological alveolarization might reveal opportunities for improved medical management of affected infants. Furthermore, disturbances to the alveolar architecture are a key histopathological feature of several adult chronic lung diseases, including emphysema and fibrosis, and it is envisaged that knowledge about the mechanisms of alveologenesis might facilitate regeneration of healthy lung parenchyma in affected patients. To this end, recent efforts have interrogated clinical data, developed new-and refined existing-in vivo and in vitro models of BPD, have applied new microscopic and radiographic approaches, and have developed advanced cell-culture approaches, including organoid generation. Advances have also been made in the development of other methodologies, including single-cell analysis, metabolomics, lipidomics, and proteomics, as well as the generation and use of complex mouse genetics tools. The objective of this review is to present advances made in our understanding of the mechanisms of lung alveolarization and BPD over the period 1 January 2017-30 June 2019, a period that spans the 50th anniversary of the original clinical description of BPD in preterm infants.
Collapse
Affiliation(s)
- Ettore Lignelli
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Francesco Palumbo
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Despoina Myti
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| |
Collapse
|
24
|
Lu X, Wang C, Wu D, Zhang C, Xiao C, Xu F. Quantitative proteomics reveals the mechanisms of hydrogen-conferred protection against hyperoxia-induced injury in type II alveolar epithelial cells. Exp Lung Res 2019; 44:464-475. [PMID: 30973277 DOI: 10.1080/01902148.2019.1601296] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Purpose/Aim: Exposure to hyperoxia leads to lung injury both in vivo and in vitro, molecular hydrogen has been reported to protect against hyperoxia-induced lung injury; however, the underlying molecular mechanisms remain largely unknown. The objective of this study was to characterize differentially regulated proteins and biological processes in hydrogen-treated hyperoxic primary type II alveolar epithelial cells (AECIIs) to elucidate the protective mechanism of hydrogen using quantitative proteomics. Materials and Methods: AECIIs were divided into three groups that were cultured for 24 h in three different conditions: control (21% oxygen), hyperoxia (95% oxygen), and hyperoxia + hydrogen. Morphologic examination, flow cytometric analysis, cell viability assessment and analysis of the expression of apoptosis-associated proteins Bax and Bcl-2 as well as AECI markers (AQP5, T1α) and an AECII marker (SP-C) were performed for each group. The TMT labeling quantitative proteome technique was used to detect changes in the protein expression profile, and bioinformatics analysis was performed. Results: Hydrogen plays a protective role in hyperoxia-induced damage in AECIIs, as evidenced by reduced apoptosis, increased viability and survival, improved morphology, and enhanced transdifferentiation of AECIIs into AECIs. A total of 5782 proteins were identified in our study, of which 162 were significantly altered in abundance after hyperoxia exposure, and 97 were significantly altered in abundance in response to hydrogen treatment. The Gene Ontology and KEGG enrichment analyses identified a large number of proteins and biological processes that may responsible for the protective effect of hydrogen, including VEGFA, PDGFB, IGFBP3, EDN1, NADPH oxidase, the coagulation cascade, etc. Conclusions: Molecular hydrogen protects AECIIs from hyperoxic injury by complex mechanisms involving a variety of proteins and biological processes, such as VEGFA, PDGFB, IGFBP3, EDN1, NADPH oxidase and the coagulation cascade. These findings suggest novel pathways that need to be investigated as possible therapeutic targets for hyperoxia-induced lung injury.
Collapse
Affiliation(s)
- Xue Lu
- a Department of Pediatric Intensive Care Unit , Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders , Chongqing , China.,b China International Science and Technology Cooperation Base of Child Development and Critical Disorders , Chongqing , China.,c Chongqing Key Laboratory of Pediatrics , Chongqing , China
| | - Chao Wang
- a Department of Pediatric Intensive Care Unit , Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders , Chongqing , China.,b China International Science and Technology Cooperation Base of Child Development and Critical Disorders , Chongqing , China.,c Chongqing Key Laboratory of Pediatrics , Chongqing , China
| | - Dan Wu
- a Department of Pediatric Intensive Care Unit , Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders , Chongqing , China.,b China International Science and Technology Cooperation Base of Child Development and Critical Disorders , Chongqing , China.,c Chongqing Key Laboratory of Pediatrics , Chongqing , China
| | - Chao Zhang
- a Department of Pediatric Intensive Care Unit , Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders , Chongqing , China.,b China International Science and Technology Cooperation Base of Child Development and Critical Disorders , Chongqing , China.,c Chongqing Key Laboratory of Pediatrics , Chongqing , China
| | - Changxue Xiao
- a Department of Pediatric Intensive Care Unit , Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders , Chongqing , China.,b China International Science and Technology Cooperation Base of Child Development and Critical Disorders , Chongqing , China.,c Chongqing Key Laboratory of Pediatrics , Chongqing , China
| | - Feng Xu
- a Department of Pediatric Intensive Care Unit , Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders , Chongqing , China.,b China International Science and Technology Cooperation Base of Child Development and Critical Disorders , Chongqing , China.,c Chongqing Key Laboratory of Pediatrics , Chongqing , China
| |
Collapse
|
25
|
Naeem A, Ahmed I, Silveyra P. Bronchopulmonary Dysplasia: An Update on Experimental Therapeutics. EUROPEAN MEDICAL JOURNAL 2019. [DOI: 10.33590/emj/10313109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic inflammatory lung disease that affects thousands of newborns and infants every year. Although it is accepted that BPD results from lung damage and inflammation triggered by mechanical ventilation and hyperoxia, the causes and molecular events leading to lung damage and arrested development remain unknown. While recent advances in neonatal care have improved the survival of very low-weight infants, the rates of BPD have not improved accordingly. This is mainly due to our limited understanding of the disease’s pathogenesis and the effective therapeutic options available. Current therapeutics for BPD involve ventilation management, steroid treatment, and administration of various agents, such as pulmonary surfactant, caffeine, vitamin A, nitric oxide, and stem cells. However, the efficacy of these agents in preventing and ameliorating BPD symptoms varies depending on the populations studied and the disease stage. As the field moves towards personalised therapeutic approaches, this review summarises clinical and experimental studies conducted in various models, aiming to increase understanding of the cellular and molecular mechanisms by which these agents can prevent or treat BPD. Due to the increasing number of extremely premature infants, it is imperative that we continue to work towards understanding the mechanisms of BPD pathogenesis and generating more effective therapeutic options.
Collapse
Affiliation(s)
- Anika Naeem
- Pulmonary Immunology and Physiology Laboratory (PIP), Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Imtiaz Ahmed
- Pulmonary Immunology and Physiology Laboratory (PIP), Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Patricia Silveyra
- Pulmonary Immunology and Physiology Laboratory (PIP), Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| |
Collapse
|
26
|
Chen X, Zhang X, Pan J. Effect of Montelukast on Bronchopulmonary Dysplasia (BPD) and Related Mechanisms. Med Sci Monit 2019; 25:1886-1893. [PMID: 30862773 PMCID: PMC6427930 DOI: 10.12659/msm.912774] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Bronchopulmonary dysplasia (BPD) is a chronic lung disease common in preterm infants. Montelukast, an effective cysteinyl leukotriene (cysLT) receptor antagonist, has a variety of pharmacological effects and has protective effects against a variety of diseases. Currently, the efficacy and safety of montelukast sodium in treating BPD has been revealed, however, the precise molecular mechanism of the effect of montelukast on BPD development remain largely unclear. Therefore, this study aimed to investigate the effect and mechanism of montelukast on BPD in vivo and in vitro. Material/Methods A mouse BPD model and hyperoxia-induced lung cell injury model were established and treated with montelukast. Then mean linear intercept (MLI), radial alveolar count (RAC), lung weight/body weight (LW/BW) ratio, pro-inflammatory factors, and oxidative stress-related factors in lung tissues were determined. Cell viability and apoptosis were detected using MTT assay and flow cytometer respectively. Results The results showed that montelukast treatment relieved mouse BPD, evidenced by increased RAC and decreased MLI and LW/BW ratios. We also found that montelukast treatment reduced pro-inflammatory factors (TNF-α, IL-6, and IL-1β) production, enhanced superoxide dismutase (SOD) activity, and reduced malondialdehyde (MDA) content in the lung tissues of BPD mice. Besides, montelukast eliminated the reduced cell viability and enhanced cell apoptosis induced by hyperoxia exposure in vitro. Moreover, the upregulated pro-inflammatory factors production and p-p65 protein level in lung cells caused by hyperoxia were decreased by montelukast treatment. Conclusions Montelukast protected against mouse BPD induced by hyperoxia through inhibiting inflammation, oxidative stress, and lung cell apoptosis.
Collapse
Affiliation(s)
- Xin Chen
- Department of Pediatrics, The First Hospital Affiliated to Bengbu Medical College, Bengbu, Anhui, China (mainland)
| | - Xiaoqian Zhang
- Department of Children's Health Care, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Maternity and Child Care Hospital, Nanjing, Jiangsu, China (mainland)
| | - Jiahua Pan
- Department of Pediatrics, Anhui Provincial Hospital, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China (mainland)
| |
Collapse
|