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Su J, Jian Z, Zou M, Tong H, Wan P. Netrin-1 mitigates acute lung injury by preventing the activation of the Toll-like receptor 4/nuclear factor-κB (TLR4/NF-κB) signaling. Aging (Albany NY) 2024; 16:2978-2988. [PMID: 38345562 PMCID: PMC10911383 DOI: 10.18632/aging.205527] [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: 09/15/2023] [Accepted: 12/14/2023] [Indexed: 02/22/2024]
Abstract
Acute lung injury (ALI) is one of the most common high-risk diseases associated with a high mortality rate and is still a challenge to treat effectively. Netrin-1 (NT-1) is a novel peptide with a wide range of biological functions, however, its effects on ALI have not been reported before. In this study, an ALI model was constructed using lipopolysaccharide (LPS) and treated with NT-1. Pulmonary function and lung wet to dry weight ratio (W/D) were detected. The expressions of pro-inflammatory cytokines and chemokines interleukin-8 (IL-8), interleukin-1β (IL-1β), and chemokine (C-X-C motif) ligand 2 (CXCL2) were measured using real-time polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). We found that the levels of NT-1 were reduced in the LPS-induced ALI mice model. Administration of NT-1 improved histopathological changes of lung tissues and lung function in LPS-challenged ALI mice. We also report that NT-1 decreased Myeloperoxidase (MPO) activity and ameliorated pulmonary edema. Additionally, treatment with NT-1 reduced the levels of pro-inflammatory cytokines and chemokines such as IL-8, IL-1β, and CXCL2 in lung tissues of LPS-challenged ALI mice. Importantly, NT-1 reduced cell count in BALF and mitigated oxidative stress (OS) by reducing the levels of MDA and increasing the levels of GSH. Mechanistically, it is shown that NT-1 reduced the levels of Toll-like receptor 4 (TLR4) and prevented nuclear translocation of nuclear factor-κB (NF-κB) p65. Our findings indicate that NT-1 is a promising agent for the treatment of ALI through inhibiting TLR4/NF-κB signaling.
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Affiliation(s)
- Jian Su
- Department of Pulmonary and Critical Medicine, The First Clinical Medical College of Three Gorges University, Yichang Central People’s Hospital, Yi Chang, Hubei 443000, China
| | - Zhu Jian
- Department of Pulmonary and Critical Medicine, The First Clinical Medical College of Three Gorges University, Yichang Central People’s Hospital, Yi Chang, Hubei 443000, China
| | - Miao Zou
- Department of Critical Care Medicine, The First Clinical Medical College of Three Gorges University, Yichang Central People’s Hospital, Yi Chang, Hubei 443000, China
| | - Huasheng Tong
- Department of Intensive Care Unit, General Hospital of Southern Theatre Command of PLA, Guangzhou, Guangdong 510000, China
| | - Peng Wan
- Department of Critical Care Medicine, The First Clinical Medical College of Three Gorges University, Yichang Central People’s Hospital, Yi Chang, Hubei 443000, China
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2
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Feng Y, Guo K, Jiang J, Lin S. Mesenchymal stem cell-derived exosomes as delivery vehicles for non-coding RNAs in lung diseases. Biomed Pharmacother 2024; 170:116008. [PMID: 38071800 DOI: 10.1016/j.biopha.2023.116008] [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: 09/24/2023] [Revised: 12/02/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024] Open
Abstract
The burden of lung diseases is gradually increasing with an increase in the average human life expectancy. Therefore, it is necessary to identify effective methods to treat lung diseases and reduce their social burden. Currently, an increasing number of studies focus on the role of mesenchymal stem cell-derived exosomes (MSC-Exos) as a cell-free therapy in lung diseases. They show great potential for application to lung diseases as a more stable and safer option than traditional cell therapies. MSC-Exos are rich in various substances, including proteins, nucleic acids, and DNA. Delivery of Non-coding RNAs (ncRNAs) enables MSC-Exos to communicate with target cells. MSC-Exos significantly inhibit inflammatory factors, reduce oxidative stress, promote normal lung cell proliferation, and reduce apoptosis by delivering ncRNAs. Moreover, MSC-Exos carrying specific ncRNAs affect the proliferation, invasion, and migration of lung cancer cells, thereby playing a role in managing lung cancer. The detailed mechanisms of MSC-Exos in the clinical treatment of lung disease were explored by developing standardized culture, isolation, purification, and administration strategies. In summary, MSC-Exo-based delivery methods have important application prospects for treating lung diseases.
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Affiliation(s)
- Yuqian Feng
- Hangzhou School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Kaibo Guo
- Department of Oncology, Hangzhou First People's Hospital, Hangzhou, Zhejiang 310003, China
| | - Jing Jiang
- The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Shengyou Lin
- Department of Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang 310006, China.
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3
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Chen KQ, Ke BY, Cheng L, Guan MT, Wang ZB, Wang SZ. Research and Progress of Probucol in Nonalcoholic Fatty Liver Disease. Mini Rev Med Chem 2023; 23:1905-1911. [PMID: 36967462 DOI: 10.2174/1389557523666230324092842] [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: 07/23/2022] [Revised: 12/08/2022] [Accepted: 12/08/2022] [Indexed: 03/29/2023]
Abstract
With the development of the social economy over the last 30 years, non-alcoholic fatty liver disease (NAFLD) is affected by unhealthy living habits and eating styles and has gradually become an increasingly serious public health problem. It is very important to investigate the pathogenesis and treatment of NAFLD for the development of human health. Probucol is an antioxidant with a bis-phenol structure. Although probucol is a clinically used cholesterol-lowering and antiatherosclerosis drug, its mechanism has not been elucidated in detail. This paper reviews the chemical structure, pharmacokinetics and pharmacological research of probucol. Meanwhile, this paper reviews the mechanism of probucol in NAFLD. We also analyzed and summarized the experimental models and clinical trials of probucol in NAFLD. Although current therapeutic strategies for NAFLD are not effective, we hope that through further research on probucol, we will be able to find suitable treatments to solve this problem in the future.
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Affiliation(s)
- Ke-Qian Chen
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Sciences, Hengyang Medical School, University of South China, Hengyang, 421001, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China
| | - Bo-Yi Ke
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Sciences, Hengyang Medical School, University of South China, Hengyang, 421001, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China
| | - Lu Cheng
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Sciences, Hengyang Medical School, University of South China, Hengyang, 421001, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China
| | - Meng-Ting Guan
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Sciences, Hengyang Medical School, University of South China, Hengyang, 421001, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China
| | - Zong-Bao Wang
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Sciences, Hengyang Medical School, University of South China, Hengyang, 421001, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China
| | - Shu-Zhi Wang
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Sciences, Hengyang Medical School, University of South China, Hengyang, 421001, China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China
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4
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von Knethen A, Heinicke U, Laux V, Parnham MJ, Steinbicker AU, Zacharowski K. Antioxidants as Therapeutic Agents in Acute Respiratory Distress Syndrome (ARDS) Treatment-From Mice to Men. Biomedicines 2022; 10:98. [PMID: 35052778 PMCID: PMC8773193 DOI: 10.3390/biomedicines10010098] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/26/2021] [Accepted: 12/31/2021] [Indexed: 12/16/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a major cause of patient mortality in intensive care units (ICUs) worldwide. Considering that no causative treatment but only symptomatic care is available, it is obvious that there is a high unmet medical need for a new therapeutic concept. One reason for a missing etiologic therapy strategy is the multifactorial origin of ARDS, which leads to a large heterogeneity of patients. This review summarizes the various kinds of ARDS onset with a special focus on the role of reactive oxygen species (ROS), which are generally linked to ARDS development and progression. Taking a closer look at the data which already have been established in mouse models, this review finally proposes the translation of these results on successful antioxidant use in a personalized approach to the ICU patient as a potential adjuvant to standard ARDS treatment.
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Affiliation(s)
- Andreas von Knethen
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany
| | - Ulrike Heinicke
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Volker Laux
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany
| | - Michael J Parnham
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany
| | - Andrea U Steinbicker
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - Kai Zacharowski
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
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Mechanism of Adipose-Derived Mesenchymal Stem Cell-Derived Extracellular Vesicles Carrying miR-21-5p in Hyperoxia-Induced Lung Injury. Stem Cell Rev Rep 2021; 18:1007-1024. [PMID: 34882302 DOI: 10.1007/s12015-021-10311-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2021] [Indexed: 01/10/2023]
Abstract
Hyperoxia-induced lung injury (HILI) tends to develop bronchopulmonary dysplasia. Adipose-derived mesenchymal stem cell (ADMSC)-derived extracellular vesicles (EVs) hold great promise in alleviating lung injury. This study explored the mechanism of ADMSC-EVs in HILI. ADMSC-EVs were isolated and identified. The murine and cell models of HILI were established. HILI mice and cells were pre-treated with ADMSC-EVs. The lung dry/wet ratio, pathological structure, apoptosis, and inflammation of HILI mice were measured. The viability, apoptosis, and oxidative stress of HILI cells were measured. The internalization of EVs in lung and cells was observed by fluorescence labeling. The binding relationships between miR-21-5p and SKP2, and Nr2f2 and C/EBPα were analyzed. The binding of SKP2 and Nr2f2 and the Nr2f2 ubiquitination level were detected. ADMSC-EVs exerted preventive effects on HILI mice, evidenced by reduced lung dry/wet ratio, inflammation, and apoptosis in HILI mice. In vitro, EVs enhanced HILI cell viability and reduced apoptosis, inflammation, and oxidative stress. EVs carried miR-21-5p into lung cells to upregulate miR-21-5p expression and thereby target SKP2. SKP2 bound to Nr2f2 and promoted its ubiquitination degradation. EVs inhibited the binding of Nr2f2 and C/EBPα and further suppressed C/EBPα transcription. Collectively, ADMSC-EVs carrying miR-21-5p alleviated HILI via the SKP2/Nr2f2/C/EBPα axis. Role and mechanism of adipose-derived mesenchymal stem cell-derived extracellular vesicles in hyperoxia-induced lung injury. ADMSC-EVs upregulated miR-21-5p expression in cells by carrying miR-21-5p into lung cells, thereby promoting the binding of miR-21-5p and SKP2 mRNA, inhibiting the expression of SKP2, reducing the ubiquitination level of Nr2f2, increasing the expression of Nr2f2, promoting the binding of Nr2f2 and the C/EBPα promoter, upregulating C/EBPα mRNA level, and eventually alleviating HILI.
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6
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Linge M, Möbius MA, Rösen-Wolff A, Winkler S. Systematic analysis of candidate reference genes for gene expression analysis in hyperoxia-based mouse models of bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2021; 321:L718-L725. [PMID: 34378408 DOI: 10.1152/ajplung.00143.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Bronchopulmonary dysplasia is a chronic lung disease of preterm infants. Mouse models of hyperoxia-induced lung injury are often used to study pathogenesis and potential therapeutic approaches of BPD. Beside histological studies, gene expression analysis of lung tissue is typically used as experimental read out. RT-qPCR is the standard method for gene expression analysis, however, the accuracy of the quantitative data depends on the appropriate selection of reference genes. No data on validated reference genes for hyperoxia-induced neonatal lung injury in mice is available. In this study, 12 potential reference genes were systematically analyzed for their expression stability in lung tissue of neonatal mice exposed to room air or hyperoxia and healthy adult controls using published software algorithms. Analysis of gene expression data identified Hprt, Tbp and Hmbs as the most stable reference genes and proposed combinations of Hprt/Sdha or Hprt/Rpl13a as potential normalization factors. These reference genes and normalization factors were validated by comparing Il6 gene and protein expression and may facilitate accurate gene expression analysis in lung tissues of similar designed studies.
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Affiliation(s)
- Mary Linge
- Department of Pediatrics, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Marius Alexander Möbius
- Department of Pediatrics, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Angela Rösen-Wolff
- Department of Pediatrics, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stefan Winkler
- Department of Pediatrics, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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7
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Yamamoto R, Fujishima S, Sasaki J, Gando S, Saitoh D, Shiraishi A, Kushimoto S, Ogura H, Abe T, Mayumi T, Kotani J, Nakada TA, Shiino Y, Tarui T, Okamoto K, Sakamoto Y, Shiraishi SI, Takuma K, Tsuruta R, Masuno T, Takeyama N, Yamashita N, Ikeda H, Ueyama M, Hifumi T, Yamakawa K, Hagiwara A, Otomo Y. Hyperoxemia during resuscitation of trauma patients and increased intensive care unit length of stay: inverse probability of treatment weighting analysis. World J Emerg Surg 2021; 16:19. [PMID: 33926507 PMCID: PMC8082221 DOI: 10.1186/s13017-021-00363-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/16/2021] [Indexed: 12/28/2022] Open
Abstract
Background Information on hyperoxemia among patients with trauma has been limited, other than traumatic brain injuries. This study aimed to elucidate whether hyperoxemia during resuscitation of patients with trauma was associated with unfavorable outcomes. Methods A post hoc analysis of a prospective observational study was carried out at 39 tertiary hospitals in 2016–2018 in adult patients with trauma and injury severity score (ISS) of > 15. Hyperoxemia during resuscitation was defined as PaO2 of ≥ 300 mmHg on hospital arrival and/or 3 h after arrival. Intensive care unit (ICU)-free days were compared between patients with and without hyperoxemia. An inverse probability of treatment weighting (IPW) analysis was conducted to adjust patient characteristics including age, injury mechanism, comorbidities, vital signs on presentation, chest injury severity, and ISS. Analyses were stratified with intubation status at the emergency department (ED). The association between biomarkers and ICU length of stay were then analyzed with multivariate models. Results Among 295 severely injured trauma patients registered, 240 were eligible for analysis. Patients in the hyperoxemia group (n = 58) had shorter ICU-free days than those in the non-hyperoxemia group [17 (10–21) vs 23 (16–26), p < 0.001]. IPW analysis revealed the association between hyperoxemia and prolonged ICU stay among patients not intubated at the ED [ICU-free days = 16 (12–22) vs 23 (19–26), p = 0.004], but not among those intubated at the ED [18 (9–20) vs 15 (8–23), p = 0.777]. In the hyperoxemia group, high inflammatory markers such as soluble RAGE and HMGB-1, as well as low lung-protective proteins such as surfactant protein D and Clara cell secretory protein, were associated with prolonged ICU stay. Conclusions Hyperoxemia until 3 h after hospital arrival was associated with prolonged ICU stay among severely injured trauma patients not intubated at the ED. Trial registration UMIN-CTR, UMIN000019588. Registered on November 15, 2015. Supplementary Information The online version contains supplementary material available at 10.1186/s13017-021-00363-2.
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Affiliation(s)
- Ryo Yamamoto
- Department of Emergency and Critical Care Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Seitaro Fujishima
- Center for General Medicine Education, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.
| | - Junichi Sasaki
- Department of Emergency and Critical Care Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Gando
- Department of Acute and Critical Care Medicine, Sapporo Higashi Tokushukai Hospital, Sapporo, Japan.,Division of Acute and Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Daizoh Saitoh
- Division of Traumatology, Research Institute, National Defense Medical College, Tokorozawa, Japan
| | | | - Shigeki Kushimoto
- Division of Emergency and Critical Care Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroshi Ogura
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Toshikazu Abe
- Department of General Medicine, Juntendo University, Tokyo, Japan.,Health Services Research and Development Center, University of Tsukuba, Tsukuba, Japan
| | - Toshihiko Mayumi
- Department of Emergency Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Joji Kotani
- Division of Disaster and Emergency Medicine, Department of Surgery Related, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Taka-Aki Nakada
- Department of Emergency and Critical Care Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yasukazu Shiino
- Department of Acute Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Takehiko Tarui
- Department of Trauma and Critical Care Medicine, Kyorin University School of Medicine, Tokyo, Japan
| | - Kohji Okamoto
- Department of Surgery, Center for Gastroenterology and Liver Disease, Kitakyushu City Yahata Hospital, Kitakyushu, Japan
| | - Yuichiro Sakamoto
- Emergency and Critical Care Medicine, Saga University Hospital, Saga, Japan
| | - Shin-Ichiro Shiraishi
- Department of Emergency and Critical Care Medicine, Aizu Chuo Hospital, Aizuwakamatsu, Japan
| | - Kiyotsugu Takuma
- Emergency & Critical Care Center, Kawasaki Municipal Kawasaki Hospital, Kawasaki, Japan
| | - Ryosuke Tsuruta
- Advanced Medical Emergency & Critical Care Center, Yamaguchi University Hospital, Ube, Japan
| | - Tomohiko Masuno
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan
| | - Naoshi Takeyama
- Advanced Critical Care Center, Aichi Medical University Hospital, Nagakute, Japan
| | - Norio Yamashita
- Advanced Emergency Medical Service Center, Kurume University Hospital, Kurume, Japan
| | - Hiroto Ikeda
- Department of Emergency Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Masashi Ueyama
- Department of Trauma, Critical Care Medicine, and Burn Center, Japan Community Healthcare Organization, Chukyo Hospital, Nagoya, Japan
| | - Toru Hifumi
- Department of Emergency and Critical Care Medicine, St. Luke's International Hospital, Tokyo, Japan
| | - Kazuma Yamakawa
- Division of Trauma and Surgical Critical Care, Osaka General Medical Center, Osaka, Japan
| | - Akiyoshi Hagiwara
- Center Hospital of the National Center for Global Health and Medicine, Tokyo, Japan
| | - Yasuhiro Otomo
- Trauma and Acute Critical Care Center, Medical Hospital, Tokyo Medical and Dental University, Tokyo, Japan
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8
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Bone marrow mesenchymal stem cell-derived exosomes alleviate hyperoxia-induced lung injury via the manipulation of microRNA-425. Arch Biochem Biophys 2020; 697:108712. [PMID: 33264631 DOI: 10.1016/j.abb.2020.108712] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/22/2020] [Accepted: 11/26/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hyperoxia-induced lung injury (HILI) is an acute lung injury (LI) induced by extended periods of exposure to hyperoxia. Alleviating LI by bone marrow mesenchymal stem cell-derived exosomes (BMSCs-Exos) and microRNAs (miRs) has been previously reported. This study is devised to probe the interaction between BMSCs-Exos and miR-425 in HILI. METHODS Firstly, BMSCs-Exos were isolated and identified. Then, HILI rat models and RLE-6TN cell models were successfully established and treated by BMSCs-Exos. Afterwards, functional assays were conducted to explore cell biological behaviors in models, with miR-425 expression detected. Then, the target relation between miR-425 and PTEN was clarified by luciferase reporter assay. Eventually, expression of PTEN and the PI3K/Akt axis was assessed by Western blotting and qRT-PCR. RESULTS BMSCs-Exos promoted miR-425 expression and attenuated HILI and H2O2 induced RLE-6TN cell injury as evidence by alleviated lung cell injury, decreased TUNEL-positive cells, induced cell viability and declined apoptosis (all p < 0.05). Besides, when miR-425 was knocked-down, the protective role of BMSCs-Exos in HILI was also reduced (all p < 0.05). miR-425 targeted PTEN mRNA, whose upregulation reversed the protective role of BMSCs-Exos in HILI (all p < 0.05). BMSCs-Exos improved the quenched levels of the PI3K/AKT axis in HILI (all p < 0.05). CONCLUSION Our data supported that miR-425 in BMSCs-Exos inhibits HILI by targeting PTEN and upregulating the PI3K/AKT axis. This study may provide personalized interventions for HILI remedy.
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Zou DM, Zhou SM, Li LH, Zhou JL, Tang ZM, Wang SH. Knockdown of Long Noncoding RNAs of Maternally Expressed 3 Alleviates Hyperoxia-Induced Lung Injury via Inhibiting Thioredoxin-Interacting Protein-Mediated Pyroptosis by Binding to miR-18a. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:994-1005. [PMID: 32084370 DOI: 10.1016/j.ajpath.2019.12.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 12/04/2019] [Accepted: 12/19/2019] [Indexed: 12/20/2022]
Abstract
Long-term hyperoxia exposure may cause lung damage with characteristic inflammation. Long noncoding RNA of maternally expressed 3 (MEG3) is up-regulated in lung tissues exposed to hyperoxia; however, the underlying mechanism is unclear. Hyperoxia-induced cells and mouse models were used to study these mechanisms. Molecular assays were used to detect cell viability, cytotoxicity, and expression of miR-18a, MEG3, and inflammatory cytokines. The interaction among MEG3, miR-18a, and thioredoxin-interacting protein (TXNIP) was verified; and pyroptosis-related proteins were analyzed. The in vivo model was established by exposing MEG3 knockdown mice to hyperoxia. Hematoxylin and eosin staining was used to assess pathologic alterations of lung tissues. Hyperoxia suppressed cell viability, induced cell damage, and exacerbated the secretion of IL-1β and IL-18. Hyperoxia inhibited miR-18a, with increased expression of MEG3, TXNIP, and nonobese diabetic-like receptor family pyrin domain containing 3 (NLRP3). MEG3 aggravated TXNIP expression by binding to miR-18a. Knockdown of MEG3 rescued hyperoxia-induced pyroptosis by up-regulating miR-18a. Furthermore, knockdown of MEG3 inhibited NLRP3 inflammasome activity and caspase-1 signaling by miR-18a. In vivo knockdown of MEG3 and overexpression of miR-18a relieved hyperoxia-induced lung injury via restraining NLRP3 inflammasome-mediated pyroptosis, whereas miR-18a inhibition reversed these effects. In conclusion, knockdown of MEG3 inhibits pyroptosis to alleviate hyperoxia lung injury by suppressing NLRP3 inflammasome and caspase-1 signaling via regulating miR-18a-TXNIP axis.
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Affiliation(s)
- Dong-Mei Zou
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, P.R. China
| | - Shao-Ming Zhou
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, P.R. China
| | - Long-Hui Li
- Department of Neonatal, The First People Hospital of Yueyang, Yueyang, P.R. China
| | - Jian-Li Zhou
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, P.R. China
| | - Zan-Mei Tang
- Neonatal Intensive Care Unit, Women and Children Health Institute Futian, University of South China, Shenzhen, P.R. China
| | - Shao-Hua Wang
- Neonatal Intensive Care Unit, Women and Children Health Institute Futian, University of South China, Shenzhen, P.R. China.
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10
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Liu D, Wang Y, Li L, Zhao H, Li L, Liu Y, Jiang H, Li X, Zhang R. Celecoxib Protects Hyperoxia-Induced Lung Injury via NF-κB and AQP1. Front Pediatr 2019; 7:228. [PMID: 31231624 PMCID: PMC6568051 DOI: 10.3389/fped.2019.00228] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 05/21/2019] [Indexed: 12/13/2022] Open
Abstract
Objective: There is an increasing incidence of bronchopulmonary dysplasia (BDP) in preterm infants in China, which is the key issue affecting their survival rate and life quality. This study was performed to better understand the mechanism of protective effect of celecoxib on hyperoxia induced injury. Methods: Hyperoxia BPD model was established using newborn Sprague-Dawley (SD) rats exposed to high O2 level (85%). Celecoxib treatment was also conducted. Histology of lung tissue samples were analyzed. Functional studies were systematically performed using the lung tissues and A549 cells. Results: Hyperoxia disrupted lung development in SD rats. Celecoxib alleviated the damaged lung development. NF-κB and Aquaporin (AQP) 1 were identified as the pathways in the hyperoxia-induced lung injury. We have shown that hyperoxia activated NF-κB pathway through increased nucleus translocation and repressed AQP1 expression. On the contrary, celecoxib inhibited NF-κB phosphorylation and nucleus translocation and increased AQP1 expression through inhibiting COX2 activity. Additionally, celecoxib also rescued apoptosis induced by hyperoxia. Conclusion: Our study identified NF-κB and AQP1 as the pathways in the hyperoxia-induced lung injury in the hyperoxia BPD model SD rats and it provided a better understanding of the protective effect of celecoxib. It suggests NF-κB and AQP1 may be as potential targets for treating newborns with BPD.
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Affiliation(s)
- Dongyun Liu
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Yuguang Wang
- Pediatric Department, Liaocheng City People's Hospital, Liaocheng, China
| | - Lili Li
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Han Zhao
- Department of Pathology, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Liangliang Li
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Yan Liu
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Hong Jiang
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Xianghong Li
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Rui Zhang
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
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Wang J, Dong W. Oxidative stress and bronchopulmonary dysplasia. Gene 2018; 678:177-183. [PMID: 30098433 DOI: 10.1016/j.gene.2018.08.031] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 07/30/2018] [Accepted: 08/06/2018] [Indexed: 12/18/2022]
Abstract
With the progress of modern medicine, oxygen therapy has become a crucial measure for the treatment of premature infants. As an environmental stimulus, in the normal development of lungs, oxygen plays a very important regulatory role. However, the problem is that long-term exposure to hyperoxia can interfere with the development of lungs, leading to irreversible developmental abnormalities. Now, the incidence of bronchopulmonary dysplasia (BPD) is increasing year by year. The existing related research shows that although BPD is a multi-factor triggered disease, its main risk factors are the premature exposure to hyperoxia and the role of reactive oxygen species (ROS). As for premature infants, especially very premature babies and those with very low birth weight, prolonged exposure to high oxygen can affect and alter the normal developmental trajectories of lung tissue and vascular beds, triggering developmental disorders, such as BPD. In the relevant studies about human BPD, a large number of them support that ROS is associated with impaired lung development. Neonates, due to the damage in the development of alveolar, are specific to hyperoxia-induced inflammatory damage. This review while focusing on the role of oxidative stress in the pathogenesis of BPD, suggests that antioxidant measures may be effective to guard against BPD of preterm infants.
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Affiliation(s)
- Junyi Wang
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, 25 Taiping Road, Luzhou, Sichuan 646000, People's Republic of China
| | - Wenbin Dong
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, 25 Taiping Road, Luzhou, Sichuan 646000, People's Republic of China.
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Modified porcine surfactant enriched by recombinant human superoxide dismutase for experimental meconium aspiration syndrome. Life Sci 2018; 203:121-128. [DOI: 10.1016/j.lfs.2018.04.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/13/2018] [Accepted: 04/19/2018] [Indexed: 12/11/2022]
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