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Xiang Y, Zhong Y, Lai X, Fang Z, Su G, Lv Y, Tang X, Ouyang L, Gao X, Zheng H, He L, Chen J, Huang J, Lai T. Myeloid-specific Hdac10 deletion protects against LPS-induced acute lung injury via P62 acetylation at lysine 165. Respir Res 2024; 25:263. [PMID: 38956592 PMCID: PMC11221109 DOI: 10.1186/s12931-024-02891-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 06/24/2024] [Indexed: 07/04/2024] Open
Abstract
BACKGROUND Aberrant activation of macrophages is associated with pathogenesis of acute lung injury (ALI). However, the potential pathogenesis has not been explored. OBJECTIVES We aimed to identify whether histone deacetylase (HDAC) 10 is involved in lipopolysaccharide (LPS)-exposed ALI and reveal the underlying pathogenesis by which it promotes lung inflammation in LPS-exposed ALI via modifying P62 with deacetylation. METHODS We constructed an ALI mice model stimulated with LPS to determine the positive effect of Hdac10 deficiency. Moreover, we cultured murine alveolar macrophage cell line (MH-S cells) and primary bone marrow-derived macrophages (BMDMs) to explore the pro-inflammatory activity and mechanism of HDAC10 after LPS challenge. RESULTS HDAC10 expression was increased both in mice lung tissues and macrophage cell lines and promoted inflammatory cytokines production exposed to LPS. Hdac10 deficiency inhibited autophagy and inflammatory response after LPS stimulation. In vivo, Hdac10fl/fl-LysMCre mice considerably attenuated lung inflammation and inflammatory cytokines release exposed to LPS. Mechanistically, HDAC10 interacts with P62 and mediates P62 deacetylation at lysine 165 (K165), by which it promotes P62 expression and increases inflammatory cytokines production. Importantly, we identified that Salvianolic acid B (SAB), an HDAC10 inhibitor, reduces lung inflammatory response in LPS-stimulated ALI. CONCLUSION These results uncover a previously unknown role for HDAC10 in regulating P62 deacetylation and aggravating lung inflammation in LPS-induced ALI, implicating that targeting HDAC10 is an effective therapy for LPS-exposed ALI.
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Affiliation(s)
- Yuanyuan Xiang
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China
| | - Yu Zhong
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China
| | - Xianwen Lai
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China
| | - Zhenfu Fang
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China
| | - Guomei Su
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China
| | - Yingying Lv
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China
| | - Xiantong Tang
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China
| | - Lihuan Ouyang
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China
| | - Xiao Gao
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Hongying Zheng
- The Department of Pulmonary and Critical Care Medicine, The Third People' s Hospital of Xining City, Qinghai, 810005, China
| | - Lilin He
- The Department of Pulmonary and Critical Care Medicine, The Third People' s Hospital of Xining City, Qinghai, 810005, China
| | - Jialong Chen
- Department of Preventive Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523121, China.
| | - Jiewen Huang
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China.
- Dongguan Key Laboratory of Immune Inflammation and Metabolism, Dongguan, 523121, China.
| | - Tianwen Lai
- Department of Respiratory and Critical Care Medicine, Dongguan Institute of Respiratory Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523121, China.
- Dongguan Key Laboratory of Immune Inflammation and Metabolism, Dongguan, 523121, China.
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Ai L, Li R, Wang X, Liu Z, Li Y. Tempol alleviates acute lung injury by affecting glutathione synthesis through Nrf2 and inhibiting ferroptosis in lung epithelial cells. J Biochem Mol Toxicol 2024; 38:e23674. [PMID: 38454815 DOI: 10.1002/jbt.23674] [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: 04/17/2023] [Revised: 09/12/2023] [Accepted: 02/23/2024] [Indexed: 03/09/2024]
Abstract
As a life-threatening disease, acute lung injury (ALI) may progress to chronic pulmonary fibrosis. For the treatment of lung injury, Tempol is a superoxide dismutase mimetic and intracellular redox agent that can be a potential drug. This study investigated the regulatory mechanism of Tempol in the treatment of ALI. A mouse model of ALI was established, and HE staining was used to examine histomorphology. The CCK-8 assay was used to measure cell viability, and oxidative stress was assessed by corresponding kits. Flow cytometry and dichlorodihydrofluorescein diacetate staining assays were used to detect reactive oxygen species (ROS) levels. Protein expression levels were measured by Western blot analysis and ELISA. Pulmonary vascular permeability was used to measure the lung wet/dry weight ratio. The level of oxidative stress was increased in ALI mice, and the level of ferroptosis was upregulated. Tempol inhibited this effect and alleviated ALI. The administration of Tempol alleviated the pathological changes in ALI, inhibited pulmonary vascular permeability, and improved lung injury in ALI mice. The upregulation of genes essential for glutathione (GSH) metabolism induced by lipopolysaccharide (LPS) was inhibited by Tempol. In addition, nuclear factor-related factor 2 (Nrf2) is activated by Tempol therapy to regulate the de novo synthesis pathway of GSH, thereby alleviating LPS-induced lung epithelial cell damage. The results showed that Tempol alleviated ALI by activating the Nrf2 pathway to inhibit oxidative stress and ferroptosis in lung epithelial cells. In conclusion, this study demonstrates that Tempol alleviates ALI by inhibiting ferroptosis in lung epithelial cells through the effect of Nrf2 on GSH synthesis.
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Affiliation(s)
- Li Ai
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Ran Li
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xiaona Wang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Zhijuan Liu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yongxia Li
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
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Li L, Ling Z, Wang X, Zhang X, Li Y, Gao G. Proteomics-based screening of AKR1B1 as a therapeutic target and validation study for sepsis-associated acute kidney injury. PeerJ 2024; 12:e16709. [PMID: 38188141 PMCID: PMC10768659 DOI: 10.7717/peerj.16709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/01/2023] [Indexed: 01/09/2024] Open
Abstract
Background Sepsis and sepsis-associated acute kidney injury (SA-AKI) pose significant global health challenges, necessitating the development of innovative therapeutic strategies. Dysregulated protein expression has been implicated in the initiation and progression of sepsis and SA-AKI. Identifying potential protein targets and modulating their expression is crucial for exploring alternative therapies. Method We established an SA-AKI rat model using cecum ligation perforation (CLP) and employed differential proteomic techniques to identify protein expression variations in kidney tissues. Aldose reductase (AKR1B1) emerged as a promising target. The SA-AKI rat model received treatment with the aldose reductase inhibitor (ARI), epalrestat. Blood urea nitrogen (BUN) and creatinine (CRE) levels, as well as IL-1β, IL-6 and TNF-α levels in the serum and kidney tissues, were monitored. Hematoxylin-eosin (H-E) staining and a pathological damage scoring scale assessed renal tissue damage, while protein blotting determined PKC (protein kinase C)/NF-κB pathway protein expression. Result Differential proteomics revealed significant downregulation of seven proteins and upregulation of 17 proteins in the SA-AKI rat model renal tissues. AKR1B1 protein expression was notably elevated, confirmed by Western blot. ARI prophylactic administration and ARI treatment groups exhibited reduced renal injury, low BUN and CRE levels and decreased IL-1β, IL-6 and TNF-α levels compared to the CLP group. These changes were statistically significant (P < 0.05). AKR1B1, PKC-α, and NF-κB protein expression levels were also lowered in the ARI prophylactic administration and ARI treatment groups compared to the CLP group (P < 0.05). Conclusions Epalrestat appeared to inhibit the PKC/NF-κB inflammatory pathway by inhibiting AKR1B1, resulting in reduced inflammatory cytokine levels in renal tissues and blood. This mitigated renal tissue injuries and improved the systemic inflammatory response in the severe sepsis rat model. Consequently, AKR1B1 holds promise as a target for treating sepsis-associated acute kidney injuries.
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Affiliation(s)
- Lei Li
- Intensive Care Unit, Shandong Public Health Clinical Center, Shandong University, Jinan, China
| | - Zaiqin Ling
- Department of Tubercular Medicine, Shandong Public Health Clinical Center, Shandong University, Jinan, China
| | - Xingsheng Wang
- Department of Emergency, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xinxin Zhang
- Department of Emergency Medicine, Fuyang People’s Hospital of Anhui Medical University, Fuyang, China
| | - Yun Li
- Intensive Care Unit, Central Hospital Affliated to Shandong First Medical University, Jinan, China
| | - Guangsheng Gao
- Neurological Intensive Care Unit, Central Hospital Affliated to Shandong First Medical University, Jinan, China
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Zhao J, Liang Q, Fu C, Cong D, Wang L, Xu X. Autophagy in sepsis-induced acute lung injury: Friend or foe? Cell Signal 2023; 111:110867. [PMID: 37633477 DOI: 10.1016/j.cellsig.2023.110867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/14/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
Sepsis-induced acute lung injury (ALI) is a life-threatening syndrome with high mortality and morbidity, resulting in a heavy burden on family and society. As a key factor that maintains cellular homeostasis, autophagy is regarded as a self-digesting process by which damaged organelles and useless proteins are recycled for cell metabolism, and it thus plays a crucial role during physiological and pathological processes. Recent studies have indicated that autophagy is involved in the pathophysiological process of sepsis-induced ALI, including cell apoptosis, inflammation, and mitochondrial dysfunction, which indicates that regulating autophagy may be beneficial for this disease. However, the role of autophagy in the etiology and treatment of sepsis-induced ALI is not well characterized. This review summarizes the autophagy-related signaling pathways in sepsis-induced ALI, as well as focuses on the dual role of autophagy and its regulation by non-coding RNAs during disease progression, for the development of potential therapeutic strategies in this disease.
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Affiliation(s)
- Jiayao Zhao
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Qun Liang
- Department of Critical Care Medicine, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Chenfei Fu
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Didi Cong
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Long Wang
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Xiaoxin Xu
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
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Zhang Z, Yang X, Meng Q, Long Y, Shi X, Wang Y. Adipose tissue-derived mesenchymal stromal cells attenuate acute lung injury induced by trauma and haemorrhagic shock. Immunobiology 2023; 228:152765. [PMID: 38029515 DOI: 10.1016/j.imbio.2023.152765] [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: 08/10/2023] [Revised: 11/13/2023] [Accepted: 11/22/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND Mesenchymal stromal cells (MSCs) have shown promising therapeutic options for acute lung injury (ALI) caused by multiple factors. Here, we evaluated the therapeutic potential of adipose tissue-derived mesenchymal stromal cells (ADSCs) in trauma and hemorrhagic shock (THS)-induced ALI. METHODS ALI model induced by THS was constructed by fractures plus abdominal trauma plus acute hemorrhage plus fluid resuscitation. The ADSCs group rats were generated by injecting 2 × 106 ADSCs at 0 and 1 h after THS. The sham, ALI, and ADSCs group rats were sacrificed at 24 h after resuscitation. The changes in lung histopathology, total protein in bronchoalveolar lavage fluid (BALF), mRNA expression of pro-inflammatory/anti-inflammatory cytokines, antioxidant, and anti-apoptotic indicator, and the activity of Toll-like receptor 4 (TLR4) signaling in lung tissues were evaluated. RESULTS Administration of the ADSCs reversed ALI induced by THS, including lung histopathological changes/scores, and BALF total protein concentration. Additionally, ADSCs therapy also significantly down-regulated mRNA expression of pro-inflammatory TNF-α, IL-1β, and IL-6, up-regulated mRNA expression of anti-inflammatory IL-10, anti-apoptotic molecule Bcl-2, and anti-oxidative molecule HO-1 in THS rats. Furthermore, ADSCs suppressed the expression of TLR4 in lung tissue. CONCLUSION Our data show that ADSCs administration can exert therapeutic effects on THS-induced ALI in rats and may provide beneficial in preventative strategies for ALI.
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Affiliation(s)
- Zhi Zhang
- Department of Emergency, Tianjin First Central Hospital, Tianjin 300192, China
| | - Xiaoxia Yang
- Department of Neurology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Qinghong Meng
- Department of Clinical Laboratory Medicine, Eco-city Hospital of Tianjin Fifth Central Hospital, Tianjin 300467, China
| | - Yiyin Long
- The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Xiaofeng Shi
- Department of Emergency, Tianjin First Central Hospital, Tianjin 300192, China.
| | - Yuliang Wang
- The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China.
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Gong MJ, Wang YS, Lou M, Ma RP, Hu ZZ, Zheng GX, Zhang Y. HO-1: a new marker for predicting postoperative recurrence of CRSwNP. Acta Otolaryngol 2023; 143:170-175. [PMID: 36705254 DOI: 10.1080/00016489.2023.2168054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Chronic rhinosinusitis with polyps (CRSwNP) is a subtype of chronic rhinosinusitis and is highly prone to recurrence; therefore, it is urgent to find appropriate markers to predict recurrence of CRSwNP after surgery. PURPOSE We aim to investigate the expression of HO-1 in CRSwNP and assess its value of predicting postoperative recurrence of CRSwNP. METHODS We recruited 77 participants and collected clinical data of all. We use Immunohistochemical staining to determine the expression of HO-1 in tissues. We use Spearman correlation test to analyze the correlation between HO-1 positive cell count and clinical score, and ROC curve to assess the value of HO-1 positive cell count in predicting recurrence of CRSwNP. RESULTS HO-1 positive cells were macrophages and significantly increased in CRSwNP; HO-1 positive cell count was negatively correlated with preoperative SNOT-22 score; HO-1 can predict postoperative recurrence of CRSwNP, AUC = 0.80, p = 0.004. CONCLUSION HO-1 is a biochemical marker of CRSwNP and can predict postoperative recurrence of CRSwNP.
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Affiliation(s)
- Min-Jie Gong
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yu-Sheng Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Miao Lou
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Rui-Ping Ma
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhen-Zhen Hu
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Guo-Xi Zheng
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ya Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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