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Liu Z, Wei J, Sun H, Xu L. Plumbagin ameliorates LPS-induced acute lung injury by regulating PI3K/AKT/mTOR and Keap1-Nrf2/HO-1 signalling pathways. J Cell Mol Med 2024; 28:e18386. [PMID: 38990057 PMCID: PMC11238321 DOI: 10.1111/jcmm.18386] [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: 11/22/2023] [Revised: 04/17/2024] [Accepted: 04/27/2024] [Indexed: 07/12/2024] Open
Abstract
Acute lung injury (ALI) is a major pathophysiological problem characterized by severe inflammation, resulting in high morbidity and mortality. Plumbagin (PL), a major bioactive constituent extracted from the traditional Chinese herb Plumbago zeylanica, has been shown to possess anti-inflammatory and antioxidant pharmacological activities. However, its protective effect on ALI has not been extensively studied. The objective of this study was to investigate the protective effect of PL against ALI induced by LPS and to elucidate its possible mechanisms both in vivo and in vitro. PL treatment significantly inhibited pathological injury, MPO activity, and the wet/dry ratio in lung tissues, and decreased the levels of inflammatory cells and inflammatory cytokines TNF-α, IL-1β, IL-6 in BALF induced by LPS. In addition, PL inhibited the activation of the PI3K/AKT/mTOR signalling pathway, increased the activity of antioxidant enzymes CAT, SOD, GSH and activated the Keap1/Nrf2/HO-1 signalling pathway during ALI induced by LPS. To further assess the association between the inhibitory effects of PL on ALI and the PI3K/AKT/mTOR and Keap1/Nrf2/HO-1 signalling, we pretreated RAW264.7 cells with 740Y-P and ML385. The results showed that the activation of PI3K/AKT/mTOR signalling reversed the protective effect of PL on inflammatory response induced by LPS. Moreover, the inhibitory effects of PL on the production of inflammatory cytokines induced by LPS also inhibited by downregulating Keap1/Nrf2/HO-1 signalling. In conclusion, the results indicate that the PL ameliorate LPS-induced ALI by regulating the PI3K/AKT/mTOR and Keap1-Nrf2/HO-1 signalling, which may provide a novel therapeutic perspective for PL in inhibiting ALI.
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Affiliation(s)
- Zhengjia Liu
- Department of Thoracic SurgeryChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Jiahui Wei
- Department of RespiratoryChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Hongbin Sun
- Department of Thoracic SurgeryChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Lei Xu
- Department of Thoracic SurgeryChina‐Japan Union Hospital of Jilin UniversityChangchunChina
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Li N, Yi Y, Chen J, Huang Y, Peng J, Li Z, Wang Y, Zhang J, Xu C, Liu H, Li J, Liu X. Anthrahydroquinone‑2,6‑disulfonate attenuates PQ‑induced acute lung injury through decreasing pulmonary microvascular permeability via inhibition of the PI3K/AKT/eNOS pathway. Int J Mol Med 2024; 54:63. [PMID: 38874017 PMCID: PMC11188976 DOI: 10.3892/ijmm.2024.5387] [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: 03/02/2024] [Accepted: 05/24/2024] [Indexed: 06/15/2024] Open
Abstract
In paraquat (PQ)‑induced acute lung injury (ALI)/ acute respiratory distress syndrome, PQ disrupts endothelial cell function and vascular integrity, which leads to increased pulmonary leakage. Anthrahydroquinone‑2,6‑disulfonate (AH2QDS) is a reducing agent that attenuates the extent of renal injury and improves survival in PQ‑intoxicated Sprague‑Dawley (SD) rats. The present study aimed to explore the beneficial role of AH2QDS in PQ‑induced ALI and its related mechanisms. A PQ‑intoxicated ALI model was established using PQ gavage in SD rats. Human pulmonary microvascular endothelial cells (HPMECs) were challenged with PQ. Superoxide dismutase, malondialdehyde, reactive oxygen species and nitric oxide (NO) fluorescence were examined to detect the level of oxidative stress in HPMECs. The levels of TNF‑α, IL‑1β and IL‑6 were assessed using an ELISA. Transwell and Cell Counting Kit‑8 assays were performed to detect the migration and proliferation of the cells. The pathological changes in lung tissues and blood vessels were examined by haematoxylin and eosin staining. Evans blue staining was used to detect pulmonary microvascular permeability. Western blotting was performed to detect target protein levels. Immunofluorescence and immunohistochemical staining were used to detect the expression levels of target proteins in HPMECs and lung tissues. AH2QDS inhibited inflammatory responses in lung tissues and HPMECs, and promoted the proliferation and migration of HPMECs. In addition, AH2QDS reduced pulmonary microvascular permeability by upregulating the levels of vascular endothelial‑cadherin, zonula occludens‑1 and CD31, thereby attenuating pathological changes in the lungs in rats. Finally, these effects may be related to the suppression of the phosphatidylinositol‑3‑kinase (PI3K)/protein kinase B (AKT)/endothelial‑type NO synthase (eNOS) signalling pathway in endothelial cells. In conclusion, AH2QDS ameliorated PQ‑induced ALI by improving alveolar endothelial barrier disruption via modulation of the PI3K/AKT/eNOS signalling pathway, which may be an effective candidate for the treatment of PQ‑induced ALI.
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Affiliation(s)
- Nan Li
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Yang Yi
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Jun Chen
- Emergency Department of Danzhou People's Hospital, Danzhou, Hainan 571799, P.R. China
| | - Yue Huang
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Jichao Peng
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Zhao Li
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Ying Wang
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Jiadong Zhang
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Chaoqun Xu
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Haoran Liu
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Jinghua Li
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Xiaoran Liu
- College of Emergency Trauma, Hainan Medical University, Haikou, Hainan 571199, P.R. China
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570102, P.R. China
- Key Laboratory of Emergency and Trauma Ministry of Education, Hainan Medical University, Haikou, Hainan 571199, P.R. China
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Wu Y, Wang X, Zhang J, Du S, Wang Z, Li J, Zhang W, Xiang J, Li R, Liu J, Bi X. Capsaicin combined with stem cells improved mitochondrial dysfunction in PIG3V cells, an immortalized human vitiligo melanocyte cell line, by inhibiting the HSP70/TLR4/mTOR/FAK signaling axis. Mol Biol Rep 2024; 51:650. [PMID: 38734811 DOI: 10.1007/s11033-024-09592-5] [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: 02/29/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024]
Abstract
BACKGROUND Vitiligo is a common autoimmune skin disease. Capsaicin has been found to exert a positive effect on vitiligo treatment, and mesenchymal stem cells (MSCs) are also confirmed to be an ideal cell type. This study aimed to explore the influence of capsaicin combined with stem cells on the treatment of vitiligo and to confirm the molecular mechanism of capsaicin combined with stem cells in treating vitiligo. METHODS AND RESULTS PIG3V cell proliferation and apoptosis were detected using CCK-8 and TUNEL assays, MitoSOX Red fluorescence staining was used to measure the mitochondrial ROS level, and JC-1 staining was used to detect the mitochondrial membrane potential. The expression of related genes and proteins was detected using RT‒qPCR and Western blotting. Coimmunoprecipitation was used to analyze the protein interactions between HSP70 and TLR4 or between TLR4 and mTOR. The results showed higher expression of HSP70 in PIG3V cells than in PIG1 cells. The overexpression of HSP70 reduced the proliferation of PIG3V cells, promoted apoptosis, and aggravated mitochondrial dysfunction and autophagy abnormalities. The expression of HSP70 could be inhibited by capsaicin combined with MSCs, which increased the levels of Tyr, Tyrp1 and DCT, promoted the proliferation of PIG3V cells, inhibited apoptosis, activated autophagy, and improved mitochondrial dysfunction. In addition, capsaicin combined with MSCs regulated the expression of TLR4 through HSP70 and subsequently affected the mTOR/FAK signaling pathway CONCLUSIONS: Capsaicin combined with MSCs inhibits TLR4 through HSP70, and the mTOR/FAK signaling pathway is inhibited to alleviate mitochondrial dysfunction and autophagy abnormalities in PIG3V cells.
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Affiliation(s)
- Yifei Wu
- Department of Dermatology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Xiaochuan Wang
- Department of Dermatology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Jiayu Zhang
- Department of Dermatology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Sha Du
- Department of Laboratory, The First People's Hospital of Yunnan Province, Kunming, Yunnan, 650032, China
| | - Zhiqiong Wang
- Department of Dermatology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Jinrong Li
- Department of Dermatology, Traditional Chinese Medicine Hospital of Jinggu County, Pu'er, Yunnan, 666400, China
| | - Wenhe Zhang
- Department of Dermatology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Jie Xiang
- Department of Dermatology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Renfu Li
- Department of Dermatology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Jing Liu
- Department of Dermatology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China
| | - Xin Bi
- Department of Dermatology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Kunming, Yunnan, 650032, China.
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Liu D, Guo R, Shi B, Chen M, Weng S, Weng J. Fortunellin ameliorates LPS-induced acute lung injury, inflammation, and collagen deposition by restraining the TLR4/NF-κB/NLRP3 pathway. Immun Inflamm Dis 2024; 12:e1164. [PMID: 38501503 PMCID: PMC10949398 DOI: 10.1002/iid3.1164] [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: 05/17/2023] [Revised: 12/29/2023] [Accepted: 01/10/2024] [Indexed: 03/20/2024] Open
Abstract
OBJECTIVE Acute lung injury (ALI) is the prevalent respiratory disease of acute inflammation with high morbidity and mortality. Fortunellin has anti-inflammation property, but its role in ALI remains elusive. Thus, this study clarified the function of fortunellin on ALI pathogenesis. METHODS The ALI mouse model was established by lipopolysaccharide (LPS) induction, and lung tissue damage was evaluated utilizing hematoxylin-eosin (HE) staining. The edema of lung tissue was measured by the lung wet/dry (W/D) ratio. The lung capillary permeability was reflected by the protein content in bronchoalveolar lavage fluid (BALF). Inflammatory cell infiltration was measured by the evaluation of the content of myeloperoxidase (MPO), neutrophils, and leukocytes in BALF. Cell apoptosis was measured by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. The secretions of inflammatory cytokines were quantified using enzyme-linked immunosorbent assay (ELISA) assays. Lung tissue collagen deposition was evaluated by Masson staining. RESULTS Fortunellin attenuated LPS-induced lung tissue damage and reduced the W/D ratio, the content of MPO in lung tissue, the total protein contents in BALF, and the neutrophils and leukocytes number. Besides, fortunellin alleviated LPS-stimulated lung tissue apoptosis, inflammatory response, and collagen deposition. Furthermore, Fortunellin repressed the activity of the Toll-like receptor 4 (TLR4)/nuclear factor kappa-B (NF-κB)/NLR Family Pyrin Domain Containing 3 (NLRP3) pathway in the LPS-stimulated ALI model and LPS-induced RAW264.7 cells. Moreover, fortunellin attenuated LPS-stimulated tissue injury, apoptosis, inflammation, and collagen deposition of the lung via restraining the TLR4/NF-κB/NLRP3 pathway. CONCLUSION Fortunellin attenuated LPS-stimulated ALI through repressing the TLR4/NF-κB/NLRP3 pathway. Fortunellin may be a valuable drug for ALI therapy.
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Affiliation(s)
- Danjuan Liu
- Department of Critical Care Medicinethe Affiliated Hospital of Putian UniversityPutianChina
| | - Rongjie Guo
- Department of Critical Care Medicinethe Affiliated Hospital of Putian UniversityPutianChina
| | - Bingbing Shi
- Department of Critical Care Medicinethe Affiliated Hospital of Putian UniversityPutianChina
| | - Min Chen
- Department of Critical Care Medicinethe Affiliated Hospital of Putian UniversityPutianChina
| | - Shuoyun Weng
- School of Ophthalmology & OptometryWenzhou Medical UniversityWenzhouChina
| | - Junting Weng
- Department of Critical Care Medicinethe Affiliated Hospital of Putian UniversityPutianChina
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Xu H, Xu SC, Li LY, Wu YH, Tan YF, Chen L, Liu P, Liang CF, He XN, Li YH. Protective Effects of Danmu Extract Syrup on Acute Lung Injury Induced by Lipopolysaccharide in Mice through Endothelial Barrier Repair. Chin J Integr Med 2024; 30:243-250. [PMID: 37987961 DOI: 10.1007/s11655-023-3604-5] [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] [Accepted: 03/07/2023] [Indexed: 11/22/2023]
Abstract
OBJECTIVE To investigate the effects of Danmu Extract Syrup (DMS) on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice and explore the mechanism. METHODS Seventy-two male Balb/C mice were randomly divided into 6 groups according to a random number table (n=12), including control (normal saline), LPS (5 mg/kg), LPS+DMS 2.5 mL/kg, LPS+DMS 5 mL/kg, LPS+DMS 10 mL/kg, and LPS+Dexamethasone (DXM, 5 mg/kg) groups. After pretreatment with DMS and DXM, the ALI mice model was induced by LPS, and the bronchoalveolar lavage fluid (BALF) were collected to determine protein concentration, cell counts and inflammatory cytokines. The lung tissues of mice were stained with hematoxylin-eosin, and the wet/dry weight ratio (W/D) of lung tissue was calculated. The levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-6 and IL-1 β in BALF of mice were detected by enzyme linked immunosorbent assay. The expression levels of Claudin-5, vascular endothelial (VE)-cadherin, vascular endothelial growth factor (VEGF), phospho-protein kinase B (p-Akt) and Akt were detected by Western blot analysis. RESULTS DMS pre-treatment significantly ameliorated lung histopathological changes. Compared with the LPS group, the W/D ratio and protein contents in BALF were obviously reduced after DMS pretreatment (P<0.05 or P<0.01). The number of cells in BALF and myeloperoxidase (MPO) activity decreased significantly after DMS pretreatment (P<0.05 or P<0.01). DMS pre-treatment decreased the levels of TNF-α, IL-6 and IL-1 β (P<0.01). Meanwhile, DMS activated the phosphoinositide 3-kinase/protein kinase B (PI3K/Akt) pathway and reversed the expressions of Claudin-5, VE-cadherin and VEGF (P<0.01). CONCLUSIONS DMS attenuated LPS-induced ALI in mice through repairing endothelial barrier. It might be a potential therapeutic drug for LPS-induced lung injury.
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Affiliation(s)
- Han Xu
- Hainan Provincial Key Lab of Research & Development on Tropic Herbs, Hainan Medical University, Haikou, 571199, China
| | - Si-Cong Xu
- Hainan Provincial Key Lab of Research & Development on Tropic Herbs, Hainan Medical University, Haikou, 571199, China
| | - Li-Yan Li
- Hainan Provincial Key Lab of Research & Development on Tropic Herbs, Hainan Medical University, Haikou, 571199, China
| | - Yu-Huang Wu
- Hainan Provincial Key Lab of Research & Development on Tropic Herbs, Hainan Medical University, Haikou, 571199, China
| | - Yin-Feng Tan
- Hainan Provincial Key Lab of Research & Development on Tropic Herbs, Hainan Medical University, Haikou, 571199, China
| | - Long Chen
- Department of Stomatology, the Second Affiliated Hospital of Hainan Medical University, Haikou, 571199, China
| | - Pei Liu
- Department of Stomatology, the Second Affiliated Hospital of Hainan Medical University, Haikou, 571199, China
| | - Chang-Fu Liang
- Department of Stomatology, the Second Affiliated Hospital of Hainan Medical University, Haikou, 571199, China
| | - Xiao-Ning He
- Department of Stomatology, the Second Affiliated Hospital of Hainan Medical University, Haikou, 571199, China
| | - Yong-Hui Li
- Hainan Provincial Key Lab of Research & Development on Tropic Herbs, Hainan Medical University, Haikou, 571199, China.
- Department of Stomatology, the Second Affiliated Hospital of Hainan Medical University, Haikou, 571199, China.
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Jiao P, Wang Y, Ren G, Chu D, Li Y, Yang Y, Sang T. Urolithin A exerts a protective effect on lipopolysaccharide-induced acute lung injury by regulating HMGB1-mediated MAPK and NF-κB signaling pathways. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-02977-0. [PMID: 38319388 DOI: 10.1007/s00210-024-02977-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 01/22/2024] [Indexed: 02/07/2024]
Abstract
Acute lung injury (ALI) is a severe inflammatory disorder that has a high morbidity and mortality rate. Urolithin A (UA) is reported to have anti-inflammatory and anti-oxidative effects in ALI. However, its molecular mechanisms in ALI remain to be explored. Mice and BEAS-2B cells were administrated with lipopolysaccharide (LPS) to mimic the ALI model in vivo and in vitro. Hematoxylin-eosin (HE) staining was used to detect the pathological injury of lung tissues. The levels of proinflammatory cytokines in bronchoalveolar lavage fluid (BALF) and culture supernatant and the levels of oxidative stress markers in lung tissues were measured using ELISA. DCFH-DA probe was used to assess the reactive oxygen species (ROS) level. TUNEL staining and flow cytometry were performed to determine cell apoptosis. The key targets and pathways were confirmed by immunohistochemistry (IHC) and western blot. UA suppressed the pathologic damage, wet/dry weight ratio, and total protein and inflammatory cells in BALF. UA decreased neutrophil infiltration and proinflammatory cytokines production. UA reduced the level of malondialdehyde (MDA) and increased the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in pulmonary tissues. UA also inhibited cell apoptosis in lung tissues by decreasing Bax expression and increasing Bcl-2 expression. In addition, UA suppressed LPS-induced inflammatory factor production, ROS level, and cell apoptosis in BEAS-2B. Importantly, UA decreased the expression of HMGB1 in LPS-treated mice and BEAS-2B cells. HMGB1 overexpression greatly abrogated the inhibition of UA on inflammation, ROS, and cell apoptosis in LPS-administrated BEAS-2B. Furthermore, UA treatment suppressed the phosphorylated levels of p38, JNK, ERK, and p65 in LPS-administrated mice and BEAS-2B cells. UA alleviated lung inflammation, oxidative stress, and apoptosis in ALI by targeting HMGB1 to inactivate the MAPK/NF-κB signaling, suggesting the potential of UA to treat ALI.
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Affiliation(s)
- Pengfei Jiao
- Department of General Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Yingrui Wang
- Department of Oncology, The First Affiliated Hospital of Henan University of Chinese Medicine, No. 19 Renmin Road, Jinshui District, Zhengzhou, 450000, China
| | - Gaofei Ren
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Dan Chu
- Department of General Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Yameng Li
- Department of General Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
| | - Yingwu Yang
- Department of Nephropathy, Jiren Diabetes Hospital, Ruzhou, 467500, China
| | - Tianqing Sang
- Department of Oncology, The First Affiliated Hospital of Henan University of Chinese Medicine, No. 19 Renmin Road, Jinshui District, Zhengzhou, 450000, China.
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Sun W, Lei Y, Jiang Z, Wang K, Liu H, Xu T. BPA and low-Se exacerbate apoptosis and mitophagy in chicken pancreatic cells by regulating the PTEN/PI3K/AKT/mTOR pathway. J Adv Res 2024:S2090-1232(24)00042-0. [PMID: 38311007 DOI: 10.1016/j.jare.2024.01.029] [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: 09/12/2023] [Revised: 12/09/2023] [Accepted: 01/25/2024] [Indexed: 02/06/2024] Open
Abstract
INTRODUCTION Bisphenol A (BPA) is a widespread environmental pollutant which has serious toxic effects on organisms. One of the crucial trace elements is selenium (Se), whose shortage can harm biological tissues and enhance the toxicity of contaminants, in which apoptosis and autophagy are core events. OBJECTIVES An in vivo model was established to investigate the effects of BPA and low-Se on chicken pancreatic tissue, and identify the possible potential molecular mechanism. METHODS A total of 80 1-day-old broiler chickens (Xinghua Chicken Farm, Harbin, China) were stochastically divided into 4 groups (n = 20/group): Control group, BPA group, low-Se group, and low-Se + BPA group. Pancreatic tissue was collected at day 42 to detect changes in markers. RESULTS First, the data showed that BPA and low-Se exposure gave rose to structural abnormalities in pancreatic tissue, oxidative stress, mitochondrial dysfunction and homeostasis imbalance, apoptosis and mitophagy. In addition, the co-exposure of BPA and low-Se caused the most serious damage to pancreatic tissue. In terms of mechanism, it was found that apoptosis and mitophagy induced by BPA and low-Se were related to the activation of PTEN/PI3K/AKT/mTOR pathway. CONCLUSION In summary, the study found that BPA and low-Se exacerbated mitochondria damage, apoptosis and mitophagy by regulating the PTEN/PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Wenying Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yutian Lei
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Zhihui Jiang
- Henan Beiai Natural Product Application and Development Engineering Research Center, Anyang Institute of Technology, Anyang 455000, Henan, PR China
| | - Kun Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Huanyi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Tong Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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Adel RM, Helal H, Ahmed Fouad M, Sobhy Abd-Elhalem S. Regulation of miRNA-155-5p ameliorates NETosis in pulmonary fibrosis rat model via inhibiting its target cytokines IL-1β, TNF-α and TGF-β1. Int Immunopharmacol 2024; 127:111456. [PMID: 38159555 DOI: 10.1016/j.intimp.2023.111456] [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: 11/14/2023] [Revised: 12/16/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
Idiopathic pulmonary fibrosis (IPF) is an age-related inflammatory disease with no cure up till now.It is accompanied by neutrophils infiltration as the main responders to inflammation and fibrosis. Importantly, neutrophils release neutrophil extracellular traps (NETs) through NETosis process. The function of microRNAs during inflammation became of great biological attention. Owing to microRNAs' central role in immune system, microRNA-155-5p (miR-155-5p) is intensely involved in the inflammatory response. Capsaicin (Cap) is a bioactive compound that exhibits antioxidative and anti-inflammatory functions. Recent studies have shown its role in regulation of certain microRNAs' expressions. Accordingly, the present study aims to investigate the effect of miR-155-5p regulation in suppressing NETs production via ameliorating its target inflammatory cytokines, IL-1ß, TNF-α and TGF-ß1, in bleomycin (BLM)-induced pulmonary fibrosis rat model treated by Cap. The obtained results demonstrated that miR-155-5p downregulation was associated with significant decrease in IL-1ß, TNF-α, TGF-β1, which consequently, reduced hydroxyproline (HYP), NETs activity markers as NE and PAD-4, and alleviated CTGF levels in lung tissues of animals treated by Cap. Furthermore, NETosis ultrastructure examination by transmission electron microscope (TEM), MPO immunohistochemical staining and histopathological studies confirmed an abolishment in NETs formation and an improvement in lung tissue architecture in Cap-treated rats. This study concluded that Cap quenched the inflammatory response through interrupting IL-1β, TNF-α and TGF-β1 pathway via modulating miR-155-5p expression. In addition, Cap was able to alleviate pulmonary NETosis markers by restraining NETs activity markers. These findings provide novel insight into the application of Cap-based treatment in ameliorating pulmonary damage in IPF.
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Affiliation(s)
- Rana Mostafa Adel
- Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University, 11757, Cairo, Egypt.
| | - Hamed Helal
- Zoology Department, Faculty of Science, Al-Azhar University, 11884, Nasr City, Cairo, Egypt.
| | - Mona Ahmed Fouad
- Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University, 11757, Cairo, Egypt.
| | - Sahar Sobhy Abd-Elhalem
- Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University, 11757, Cairo, Egypt.
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Huang Q, Le Y, Li S, Bian Y. Signaling pathways and potential therapeutic targets in acute respiratory distress syndrome (ARDS). Respir Res 2024; 25:30. [PMID: 38218783 PMCID: PMC10788036 DOI: 10.1186/s12931-024-02678-5] [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: 09/30/2023] [Accepted: 01/03/2024] [Indexed: 01/15/2024] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a common condition associated with critically ill patients, characterized by bilateral chest radiographical opacities with refractory hypoxemia due to noncardiogenic pulmonary edema. Despite significant advances, the mortality of ARDS remains unacceptably high, and there are still no effective targeted pharmacotherapeutic agents. With the outbreak of coronavirus disease 19 worldwide, the mortality of ARDS has increased correspondingly. Comprehending the pathophysiology and the underlying molecular mechanisms of ARDS may thus be essential to developing effective therapeutic strategies and reducing mortality. To facilitate further understanding of its pathogenesis and exploring novel therapeutics, this review provides comprehensive information of ARDS from pathophysiology to molecular mechanisms and presents targeted therapeutics. We first describe the pathogenesis and pathophysiology of ARDS that involve dysregulated inflammation, alveolar-capillary barrier dysfunction, impaired alveolar fluid clearance and oxidative stress. Next, we summarize the molecular mechanisms and signaling pathways related to the above four aspects of ARDS pathophysiology, along with the latest research progress. Finally, we discuss the emerging therapeutic strategies that show exciting promise in ARDS, including several pharmacologic therapies, microRNA-based therapies and mesenchymal stromal cell therapies, highlighting the pathophysiological basis and the influences on signal transduction pathways for their use.
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Affiliation(s)
- Qianrui Huang
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jie Fang Avenue, Wuhan, 430030, China
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jie Fang Avenue, Wuhan, 430030, China
| | - Yue Le
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, 87 Dingjia Bridge, Hunan Road, Gu Lou District, Nanjing, 210009, China
| | - Shusheng Li
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jie Fang Avenue, Wuhan, 430030, China.
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jie Fang Avenue, Wuhan, 430030, China.
| | - Yi Bian
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095, Jie Fang Avenue, Wuhan, 430030, China.
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095, Jie Fang Avenue, Wuhan, 430030, China.
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Sun X, Xiang H, Liu Z, Xiao H, Li X, Gong W, Pan L, Zhao L, Yao J, Sun C, Zhang G. Jingfang Granules () alleviates bleomycin-induced acute lung injury through regulating PI3K/Akt/mTOR signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116946. [PMID: 37482261 DOI: 10.1016/j.jep.2023.116946] [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: 05/28/2023] [Revised: 06/29/2023] [Accepted: 07/19/2023] [Indexed: 07/25/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acute lung injury is a kind of clinical emergency severe syndrome which might trigger acute respiratory distress syndrome. Jingfang Granules () is a traditional Chinese medicine which has been proven to improve acute lung injury induced by bleomycin through inhibiting recruitment and overactive of inflammation. However, the potential mechanisms are still not well evaluated. AIM OF STUDY The aim of this study was to evaluate the protective function of Jingfang Granules on bleomycin caused acute lung injury and further discuss the potential pharmacological mechanisms. MATERIALS AND METHODS C57BL/6J mice were intratracheal injected bleomycin to induce model with acute lung injury. The protective impact of Jingfang Granules on acute lung injury and lung fibrosis triggered by bleomycin were evaluated through detecting mice body weight, lung appearance, lung index, and histopathology. The potential pharmacological mechanism of Jingfang Granules in treating acute lung injury was further elucidated by the methods of network pharmacology, proteomics, metabolomics, as well as western blot. Additionally, the network pharmacology analysis and molecular docking technology were integrated to investigate the targets of Jingfang Granules improving acute lung injury. RESULTS Our results indicated that Jingfang Granules effectively protected mice from acute lung injury induced by bleomycin, which was confirmed by higher body weight, lower pulmonary edema and lung index, and improved pathology and fibrosis of lung tissue compared to model group. Proteomics, western blot, and metabolomics were integrated and the results confirmed that Jingfang Granules regulated the Glycolysis/Gluconogenesis and Pyruvate metabolism through downregulating the PI3K/Akt/mTOR signaling pathway. The network pharmacology analysis and molecular docking technology results showed that the targets of Jingfang Granules for treating acute lung injury were enriched in the PI3K/Akt signaling pathway, which included 7 target proteins such as MAPK1, MAPK3, JAK2, HRAS, EGFR, PIK3R1, and PIK3CA. CONCLUSION This study indicates that Jingfang Granules displays a markedly protective effect on acute lung injury caused by bleomycin through downregulating PI3K/Akt/mTOR signaling pathway, which in turn regulates Glycolysis/Gluconogenesis and Pyruvate metabolism.
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Affiliation(s)
- Xingxu Sun
- School of Traditional Chinese Medicine, Guangdong Pharmacuetical University, Guangzhou, 510006, China; State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Haixin Xiang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
| | - Zhong Liu
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - He Xiao
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Xin Li
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Wenqiao Gong
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Lihong Pan
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Lizhi Zhao
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Jingchun Yao
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Chenghong Sun
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Guimin Zhang
- School of Traditional Chinese Medicine, Guangdong Pharmacuetical University, Guangzhou, 510006, China; State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
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Hu Q, Liu H, Wang R, Yao L, Chen S, Wang Y, Lv C. Capsaicin Attenuates LPS-Induced Acute Lung Injury by Inhibiting Inflammation and Autophagy Through Regulation of the TRPV1/AKT Pathway. J Inflamm Res 2024; 17:153-170. [PMID: 38223422 PMCID: PMC10787572 DOI: 10.2147/jir.s441141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/03/2024] [Indexed: 01/16/2024] Open
Abstract
Purpose Acute lung injury (ALI) is a severe pulmonary disease characterized by damage to the alveoli and pulmonary blood vessels, leading to severe impairment of lung function. Studies on the effect of capsaicin (8-methyl-N-geranyl-6-nonamide, CAP) on lipopolysaccharide (LPS)-induced ALI in bronchial epithelial cells transformed with Ad12-SV40 2B (BEAS-2B) are still limited. This study aimed to investigate the effect and specific mechanism by which CAP improves LPS-induced ALI. Methods The present study investigated the effect of CAP and the potential underlying mechanisms in LPS-induced ALI in vitro and vivo via RNA sequencing, Western blotting (WB), quantitative real-time reverse transcription PCR (qRT‒PCR), enzyme-linked immunosorbent assay (ELISA), and transmission electron microscopy (TEM). The TRPV1 inhibitor AMG9810 and the AKT agonist SC79 were used to confirm the protective effect of the TRPV1/AKT axis against ALI. The autophagy agonist rapamycin (Rapa) and the autophagy inhibitors 3-methyladenine (3-MA) and bafilomycin A1 (Baf-A1) were used to clarify the characteristics of LPS-induced autophagy. Results Our findings demonstrated that CAP effectively suppressed inflammation and autophagy in LPS-induced ALI, both in vivo and in vitro. This mechanism involves regulation by the TRPV1/AKT signaling pathway. By activating TRPV1, CAP reduces the expression of P-AKT, thereby exerting its anti-inflammatory and inhibitory effects on pro-death autophagy. Furthermore, prior administration of CAP provided substantial protection to mice against ALI induced by LPS, reduced the lung wet/dry ratio, decreased proinflammatory cytokine expression, and downregulated LC3 expression. Conclusion Taken together, our results indicate that CAP protects against LPS-induced ALI by inhibiting inflammatory responses and autophagic death through the TRPV1/AKT signaling pathway, presenting a novel strategy for ALI therapy.
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Affiliation(s)
- Qin Hu
- Emergency and Trauma College, Hainan Medical University, Haikou, People’s Republic of China
- Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, People’s Republic of China
| | - Haoran Liu
- Emergency and Trauma College, Hainan Medical University, Haikou, People’s Republic of China
- Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, People’s Republic of China
| | - Ruiyu Wang
- Emergency Medicine Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, People’s Republic of China
| | - Li Yao
- Emergency Medicine Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, People’s Republic of China
| | - Shikun Chen
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Yang Wang
- Emergency Medicine Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, People’s Republic of China
| | - Chuanzhu Lv
- Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, People’s Republic of China
- Emergency Medicine Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, People’s Republic of China
- Research Unit of Island Emergency Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou, People’s Republic of China
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Ren H, Huang M, Ou L, Deng X, Wu X, Gong Q, Liu B. Autophagy inhibitor 3-methyladenine attenuates renal injury in streptozotocin-induced diabetic mice. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2024; 27:793-800. [PMID: 38800022 PMCID: PMC11127078 DOI: 10.22038/ijbms.2024.71378.15518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 11/13/2023] [Indexed: 05/29/2024]
Abstract
Objectives To investigate whether 3-methyladenine (3-MA) can protect the kidney of streptozotocin (STZ) - induced diabetes mice, and explore its possible mechanism. Materials and Methods STZ was used to induce diabetes in C57BL/6J mice. The mice were divided into normal control group (NC), diabetes group (DM), and diabetes+3-MA intervention group (DM+3-MA). Blood glucose, water consumption, and body weight were recorded weekly. At the end of the 6th week of drug treatment, 24-hour urine was collected. Blood and kidneys were collected for PAS staining to evaluate the degree of renal injury. Sirius red staining was used to assess collagen deposition. Blood urea nitrogen (BUN), serum creatinine, and 24-hour urine albumin were used to evaluate renal function. Western blot was used to detect fibrosis-related protein, inflammatory mediators, high mobility group box 1 (HMGB1)/NF-κB signal pathway molecule, vascular endothelial growth factor (VEGF), and podocin, and immunohistochemistry (IHC) was used to detect the expression and localization of autophagy-related protein and fibronectin. Results Compared with the kidney of normal control mice, the kidney of diabetes control mice was more pale and hypertrophic. Hyperglycemia induces renal autophagy and activates the HMGB1/NF-κB signal pathway, leading to the increase of inflammatory mediators, extracellular matrix (ECM) deposition, and proteinuria in the kidney. In diabetic mice treated with 3-MA, blood glucose decreased, autophagy and HMGB1/NF-κB signaling pathways in the kidneys were inhibited, and proteinuria, renal hypertrophy, inflammation, and fibrosis were improved. Conclusion 3-MA can attenuate renal injury in STZ-induced diabetic mice through inhibition of autophagy and HMGB1/NF-κB signaling pathway.
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Affiliation(s)
- Haiwen Ren
- Department of Clinical Laboratory, Bishan Hospital of Chongqing Medical University, Chongqing 402760, China
- Health Science Center, Yangtze University, Jingzhou 434023, China
| | - Mengxin Huang
- Health Science Center, Yangtze University, Jingzhou 434023, China
| | - Liwen Ou
- Health Science Center, Yangtze University, Jingzhou 434023, China
| | - Xuan Deng
- Health Science Center, Yangtze University, Jingzhou 434023, China
| | - Xin Wu
- Health Science Center, Yangtze University, Jingzhou 434023, China
| | - Quan Gong
- Department of Immunology, Medical School of Yangtze University, Jingzhou 434023, China
- Clinical Molecular Immunology Center, Medical School of Yangtze University, Jingzhou 434023, China
| | - Benju Liu
- Department of Human Anatomy, Medical School of Yangtze University, Jingzhou 434023, China
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Chao-shun W, Xiao-Li W. The impacts of SphK1 on inflammatory response and oxidative stress in LPS-induced ALI/ARDS. EUR J INFLAMM 2023. [DOI: 10.1177/1721727x231158310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
As severe conditions, acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) threaten human health. Inflammation and oxidative stress play a vital role in the pathogenesis of ALI/ARDS. Sphingosine kinase 1 (SphK1) significantly contributes to mediating inflammatory responses. Nevertheless, the impact of SphK1 on lipopolysaccharide (LPS)-triggered ALI/ARDS remains largely undetermined. In our current work, we explored the impact of SphK1 on ALI/ARDS using a mouse model. We studied whether it could reduce LPS-triggered inflammatory response and oxidative stress by suppressing SphK1 in ALI/ARDS. The mice were treated with the inhibitor of SphK1 (N,N-dimethylsphingosine, DMS) before intraperitoneal injection of LPS. Moreover, we assessed the survival rate, and several parameters, such as the lung wet/dry (W/D) ratio, myeloperoxidase (MPO) activity, superoxide dismutase (SOD) activity, malondialdehyde (MDA) content, and the release of inflammatory cytokines. Western blotting analysis was adopted to evaluate the levels of phosphoinositide 3-kinase (PI3K)/serine/threonine kinase (AKT) pathways. We showed that the inhibitor of SphK1 not only ameliorated LPS-stimulated lung histopathological changes and W/D ratio of lung tissue but also elevated the survival rate, the SOD activity and decreased the MDA content, MPO activity, interleukin-6 (IL-6) and tumor necrosis factor-ɑ (TNF-ɑ) production by regulating the PI3K/AKT signaling pathway in lung tissue. Taken together, SphK1 played an essential role in inflammatory responses and oxidative stress. The underlying mechanism might be linked to the activation and up-regulation of the PI3K/AKT signaling pathway in LPS-triggered ALI/ARDS.
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Affiliation(s)
- Wei Chao-shun
- Medical College of Jishou University, Jishou, P. R. China
| | - Wang Xiao-Li
- Medical College of Jishou University, Jishou, P. R. China
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Wang L, Liu Y, Li S, Zha Z, Chen Y, Wang Q, Zhou S, Huang X, Xu M. Capsaicin alleviates doxorubicin-induced acute myocardial injury by regulating iron homeostasis and PI3K-Akt signaling pathway. Aging (Albany NY) 2023; 15:11845-11859. [PMID: 37916995 PMCID: PMC10683596 DOI: 10.18632/aging.205138] [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: 07/27/2023] [Accepted: 10/02/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Capsaicin (CAP), a frequently occurring alkaloid component found in spicy peppers, has demonstrated therapeutic potential against tumors, metabolic disease, and cardiovascular disorders. Doxorubicin (DOX), a widely used anthracycline drug in chemotherapy, is notorious for its cardiotoxicity. This study aimed to investigate the potential of CAP in mitigating DOX toxicity in mouse hearts and H9C2 cells, as well as to explore the underlying mechanisms. METHODS In our study, we conducted experiments on both mice and H9C2 cells. The mice were divided into four groups and treated with different substances: normal saline, CAP, DOX and CAP+DOX. We evaluated the induction of ferroptosis by DOX and the remission of ferroptosis by CAP using various methods, including echocardiography, Hematoxylin and Eosin (H&E) staining, Masson's trichrome staining, and determination of ferroptosis metabolites, genes and proteins. Additionally, we employed RNA-seq to identify the inhibitory effect of CAP on DOX-induced myocardial apoptosis, which was further confirmed through western blotting. Similar approaches were applied to H9C2 cells, yielding reliable results. RESULTS Our study demonstrated that treatment with CAP improved the survival rate of DOX-treated mice and reduced myocardial injury. Mechanistically, CAP downregulated transferrin (Trf) and upregulated solute carrier family 40 member 1 (SLC40A1), which helped maintain iron levels in the cells and prevent ferroptosis. Furthermore, CAP inhibited DOX-induced apoptosis by modulating the phosphoinositide 3-kinase (PI3K)- protein kinase B (Akt) signaling pathway. Specifically, CAP activated the PI3K-Akt pathway and regulated downstream BCL2 and BAX to mitigate DOX-induced apoptosis. Therefore, our results suggest that CAP effectively alleviates acute myocardial injury induced by DOX. CONCLUSION Our findings demonstrate that CAP has the potential to alleviate DOX-induced ferroptosis by regulating iron homeostasis. Additionally, it can inhibit DOX-induced apoptosis by activating PI3K-Akt signaling pathway.
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Affiliation(s)
- Longbin Wang
- College of Clinical Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Ying Liu
- Department of Cardiology, Sixth Medical Center, PLA General Hospital, Beijing, China
| | - Si Li
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhijian Zha
- Chinese Internal Medicine, Shanxi University of Chinese Medicine, Taiyuan, China
| | - Yu Chen
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| | - Qi Wang
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Shujing Zhou
- Faculty of Medicine, University of Debrecen, Debrecen, Hungary, China
| | - Xufeng Huang
- Faculty of Medicine, University of Debrecen, Debrecen, Hungary, China
| | - Ming Xu
- College of Clinical Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
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Ma Y, Wang Z, Wu X, Ma Z, Shi J, He S, Li S, Li X, Li X, Li Y, Yu J. 5-Methoxytryptophan ameliorates endotoxin-induced acute lung injury in vivo and in vitro by inhibiting NLRP3 inflammasome-mediated pyroptosis through the Nrf2/HO-1 signaling pathway. Inflamm Res 2023; 72:1633-1647. [PMID: 37458783 DOI: 10.1007/s00011-023-01769-1] [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: 02/25/2023] [Revised: 06/15/2023] [Accepted: 07/05/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND AND AIM Endotoxin-induced acute lung injury (ALI) is a complicated and fatal condition with no specific or efficient clinical treatments. 5-Methoxytryptophan (5-MTP), an endogenous metabolite of tryptophan, was revealed to block systemic inflammation. However, the specific mechanism by which 5-MTP affects ALI still needs to be clarified. The purpose of this study was to determine whether 5-MTP protected the lung by inhibiting NLRP3 inflammasome-mediated pyroptosis through the Nrf2/HO-1 signaling pathway. METHODS AND RESULTS We used lipopolysaccharide (LPS)-stimulated C57BL/6 J mice and MH-S alveolar macrophages to create models of ALI, and 5-MTP (100 mg/kg) administration attenuated pathological lung damage in LPS-exposed mice, which was associated with decreased inflammatory cytokines and oxidative stress levels, upregulated protein expression of Nrf2 and HO-1, and suppressed Caspase-1 activation and NLRP3-mediated pyroptosis protein levels. Moreover, Nrf2-deficient mice or MH-S cells were treated with 5-MTP to further confirm the protective effect of the Nrf2/HO-1 pathway on lung damage. We found that Nrf2 deficiency partially eliminated the beneficial effect of 5-MTP on reducing oxidative stress levels and inflammatory responses and abrogating the inhibition of NLRP3-mediated pyroptosis induced by LPS. CONCLUSION These findings suggested that 5-MTP could effectively ameliorate ALI by inhibiting NLRP3-mediated pyroptosis via the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Yang Ma
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
- Department of Anesthesiology, Affiliated Hospital of Chengde Medical University, Chengde, Hebei, China
| | - Zhixue Wang
- Department of Anesthesiology, Affiliated Hospital of Chengde Medical University, Chengde, Hebei, China
| | - Xiaoyang Wu
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Zijian Ma
- Department of Anesthesiology, Affiliated Hospital of Chengde Medical University, Chengde, Hebei, China
| | - Jia Shi
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Simeng He
- Department of Anesthesiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Shaona Li
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Xiangyun Li
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Xiangkun Li
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Yan Li
- Department of Anesthesiology, Affiliated Hospital of Chengde Medical University, Chengde, Hebei, China
| | - Jianbo Yu
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China.
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Zhou Y, Jin T, Gao M, Luo Z, Mutahir S, Shi C, Xie T, Lin L, Xu J, Liao Y, Chen M, Deng H, Zheng M, Shan J. Aqueous extract of Platycodon grandiflorus attenuates lipopolysaccharide-induced apoptosis and inflammatory cell infiltration in mouse lungs by inhibiting PI3K/Akt signaling. Chin Med 2023; 18:36. [PMID: 37016413 PMCID: PMC10071731 DOI: 10.1186/s13020-023-00721-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/06/2023] [Indexed: 04/06/2023] Open
Abstract
BACKGROUND Acute lung injury (ALI), an acute inflammatory lung disease, can cause a rapid inflammatory response in clinic, which endangers the patient's life. The components of platycodon grandiflorum, such as platycodins have a wide range of pharmacological activities such as expectorant, anti-apoptotic, anti-inflammatory, anti-tumor and anti-oxidant properties, and can be used for improving human immunity. Previous studies have shown that aqueous extract of platycodon grandiflorum (PAE) has a certain protective effect on ALI, but the main pharmacodynamic components and the mechanism of action are not clear. METHODS The anti-inflammatory properties of PAE were studied using the lipopolysaccharide (LPS)-induced ALI animal model. Hematoxylin and eosin stains were used to assess the degree of acute lung damage. Changes in RNA levels of pro-inflammatory cytokines in the lungs were measured using quantitative RT-qPCR. The potential molecular mechanism of PAE preventing ALI was predicted by lipidomics and network pharmacology. To examine the anti-apoptotic effects of PAE, TdT-mediated dUTP nick-end labelling (TUNEL) was employed to determine apoptosis-related variables. The amounts of critical pathway proteins and apoptosis-related proteins were measured using Western blotting. RESULTS Twenty-six chemical components from the PAE were identified, and their related pathways were obtained by the network pharmacology. Combined with the analysis of network pharmacology and literature, it was found that the phosphatidylinositol 3 kinase (PI3K)/protein kinase B (AKT) signaling pathway is related to ALI. The results of lipidomics show that PAE alleviates ALI via regulating lung lipids especially phosphatidylinositol (PI). Finally, the methods of molecular biology were used to verify the mechanism of PAE. It can be found that PAE attenuates the inflammatory response to ALI by inhibiting apoptosis through PI3K/Akt signaling pathway. CONCLUSION The study revealed that the PAE attenuates lipopolysaccharide-induced apoptosis and inflammatory cell infiltration in mouse lungs by inhibiting PI3K/Akt signaling. Furthermore, our findings provide a novel strategy for the application of PAE as a potential agent for preventing patients with ALI.
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Affiliation(s)
- Yang Zhou
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Wuhu Fanchang District People's Hospital, Wuhu, 241200, China
| | - Tianzi Jin
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Mingtong Gao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zichen Luo
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Sadaf Mutahir
- Department of Chemistry, University of Sialkot, Sialkot, 51300, Pakistan
| | - Chen Shi
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Tong Xie
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Lili Lin
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jianya Xu
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yingzhao Liao
- Department of Pediatrics, Shenzhen Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Shenzhen, 518033, China
| | - Ming Chen
- Jiangsu Suzhong Pharmaceutical Research Institute Co. Ltd, Nanjing, 210031, China
| | - Haishan Deng
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Min Zheng
- Department of Pediatrics, Shenzhen Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Shenzhen, 518033, China.
| | - Jinjun Shan
- Medical Metabolomics Center, Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Gao Y, Wang N, Jia D. JMJD3 downregulates IL4i1 aggravating lipopolysaccharide-induced acute lung injury via H3K27 and H3K4 demethylation. ENVIRONMENTAL TOXICOLOGY 2023; 38:754-769. [PMID: 36537648 DOI: 10.1002/tox.23725] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 11/15/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
The pro-inflammation M1 to anti-inflammation M2 macrophage ratio contribute to the severity of lipopolysaccharide (LPS)-induced acute lung injury (ALI). JMJD3 aggravates the inflammatory reaction through affecting epigenetic modification and macrophage's phenotype to deteriorate ALI. To explore the mechanism underlying the upregulation of the macrophage M1/M2 ratio through JMJD3, we developed an ALI mouse model using intratracheal LPS, LPS-stimulated RAW 264.7 cells, and inhibited JMJD3 using GSK-J4. H3K27me3 and H3K4me3 were investigated as JMJD3-mediated epigenetic alteration sites in vivo and in vitro. C/EBPβ and KDM5A were validated as linking factors between H3K27 and H3K4. IL4i1 was investigated as a JMJD3-mediated targeted gene to regulate the macrophage M1/M2 ratio. Chromatin immunoprecipitation was used to evaluate the relationship between H3K27me3 and C/ebpβ, C/EBPβ and Kdm5a, H3K4me3 and Il4i1. Inhibiting JMJD3 with GSK-J4 can relieve inflammation and pathological performance in ALI. JMJD3 can reduce IL4i1 expression to increase the macrophage M1/M2 ratio and aggravated ALI which process was mediated via JMJD3-indcued H3K27me3 and H3K4me3 demethylation, latter H3K4me3 demethylation inhibited IL4i1 transcription. Inhibiting JMJD3 with GSK-J4 can increase IL4i1 expression, subsequently decreasing the expressions of M1 and increasing of M2 in vivo. The over-expression IL4i1 in LPS-stimulated macrophage or inhibiting JMJD3 with GSK-J4 can both reverse the increase of the macrophage M1/M2 ratio in vitro. C/EBPβ and KDM5A were upregulated by LPS simulation, which linked JMJD3-induced H3K27-H3K4 demethylation. JMJD3 inhibited IL4i1 to increase the macrophage M1/M2 phenotype ratio and aggravate LPS-induced ALI. Using GSK-J4 to inhibit JMJD3 may facilitate the treatment of LPS-induced ALI.
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Affiliation(s)
- Yizhuo Gao
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Na Wang
- Occupational Disease and Occupational Health Prevention and Control Institute, Liaoning Center for Disease Control and Prevention, Shenyang, Liaoning, China
| | - Dong Jia
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, China
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18
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Li Y, Xiao W, Lin X. Long noncoding RNA MALAT1 inhibition attenuates sepsis-induced acute lung injury through modulating the miR-129-5p/PAX6/ZEB2 axis. Microbiol Immunol 2023; 67:142-153. [PMID: 36537561 DOI: 10.1111/1348-0421.13045] [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: 09/29/2022] [Revised: 12/05/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
This research aimed to investigate the role of the long noncoding RNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1)/microRNA-129-5p (miR-129-5p)/paired box gene 6 (PAX6) axis in sepsis-induced acute lung injury (ALI). MLE-12 cells and C57BL/6 mice were induced by LPS to establish lung injury in in vitro and in vivo models. Cell viability and apoptosis were measured by cell counting kit-8 assay and TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) staining, respectively. Levels of inflammatory cytokines in cell supernatants and bronchoalveolar lavage fluid (BALF) were detected by ELISA. Lung injury was evaluated by lung wet weight-to-dry weight ratio and hematoxylin-eosin staining. MALAT1, PAX6, and zinc finger E-box-binding homeobox 2 (ZEB2) expression was elevated and miR-129-5p expression was reduced in the serum of patients with sepsis-induced ALI, LPS-induced MLE-12 cells, and lung tissues of ALI mice. MALAT1 interference delayed the LPS-induced cell proliferation decrease, apoptosis increase, and inflammatory factor increase. miR-129-5p inhibition could reverse the delaying effect of MALAT1 interference on LPS-induced lung cell injury. PAX6 overexpression (oe) reversed the inhibitory effect of miR-129-5p oe on LPS-induced lung cell injury. Downregulating MALAT1 reduced pulmonary edema, inflammatory cytokine levels, lung injury, and apoptosis in ALI mice. Moreover, miR-129-5p suppression or PAX6 oe reversed the delaying effect of MALAT1 interference on sepsis-induced ALI. MALAT1 aggravates sepsis-induced ALI via the miR-129-5p/PAX6/ZEB2 axis.
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Affiliation(s)
- Ying Li
- Department of Critical Care Medicine, The First Affiliated Hospital, Fujian Medical University, Fujian, Fuzhou, China
| | - Wenbiao Xiao
- Department of Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fujian, Fuzhou, China
| | - Xiao Lin
- Department of Critical Care Medicine, The First Affiliated Hospital, Fujian Medical University, Fujian, Fuzhou, China
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Ghorbanpour A, Salari S, Baluchnejadmojarad T, Roghani M. Capsaicin protects against septic acute liver injury by attenuation of apoptosis and mitochondrial dysfunction. Heliyon 2023; 9:e14205. [PMID: 36938442 PMCID: PMC10018474 DOI: 10.1016/j.heliyon.2023.e14205] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 03/05/2023] Open
Abstract
Capsaicin is the main pungent bioactive constituent in red chili with promising therapeutic properties due to its anti-oxidative and anti-inflammatory effects. No evidence exists on the beneficial effect of capsaicin on apoptosis and mitochondrial function in acute liver injury (ALI) under septic conditions. For inducing septic ALI, lipopolysaccharide (LPS, 50 μg/kg) and d-galactose (D-Gal, 400 mg/kg) was intraperitoneally injected and capsaicin was given orally at 5 or 20 mg/kg. Functional markers of liver function and mitochondrial dysfunction were determined as well as hepatic assessment of apoptotic, oxidative, and inflammatory factors. Capsaicin at the higher dose appropriately decreased serum level of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in addition to reducing hepatic level of malondialdehyde (MDA), reactive oxygen species (ROS), nitrite, NF-kB, TLR4, IL-1β, TNF-α, caspase 3, DNA fragmentation and boosting sirtuin 1, Nrf2, superoxide dismutase (SOD) activity, and heme oxygenase (HO-1). These beneficial effects of capsaicin were associated with reversal and/or improvement of gene expression for pro-apoptotic Bax, anti-apoptotic Bcl2, mitochondrial and metabolic regulators PGC-1α, sirtuin 1, and AMPK, and inflammation-associated factors. Additionally, capsaicin exerted a hepatoprotective effect, as revealed by its reduction of liver histopathological changes. These findings evidently indicate hepatoprotective property of capsaicin under septic conditions that can be attributed to its down-regulation of oxidative and inflammatory processes besides its potential to attenuate mitochondrial dysfunction and apoptosis.
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Affiliation(s)
| | | | | | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran
- Corresponding author.
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Zhang X, Wu D, Tian Y, Chen X, Lan J, Wei F, Li Y, Luo Y, Sun X. Ganoderma lucidum polysaccharides ameliorate lipopolysaccharide-induced acute pneumonia via inhibiting NRP1-mediated inflammation. PHARMACEUTICAL BIOLOGY 2022; 60:2201-2209. [PMID: 36373992 PMCID: PMC9665083 DOI: 10.1080/13880209.2022.2142615] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 10/16/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
CONTEXT Ganoderma lucidum polysaccharides (GLP), from Ganoderma lucidum (Leyss. ex Fr.) Karst. (Ganodermataceae), are reported to have anti-inflammatory effects, including anti-neuroinflammation and anti-colitis. Nevertheless, the role of GLP in acute pneumonia is unknown. OBJECTIVE To explore the protective role of GLP against LPS-induced acute pneumonia and investigate possible mechanisms. MATERIALS AND METHODS GLP were extracted and used for high-performance liquid chromatography (HPLC) analysis after acid hydrolysis and PMP derivatization. Sixty C57BL/6N male mice were randomly divided into six groups: Sham, Model, LPS + GLP (25, 50 and 100 mg/kg/d administered intragastrically for two weeks) and LPS + dexamethasone (6 mg/kg/d injected intraperitoneally for one week). Acute pneumonia mouse models were established by intratracheal injection of LPS. Haematoxylin and eosin (H&E) staining was examined to evaluate lung lesions. ELISA and quantitative real-time PCR were employed to assess inflammatory factors expression. Western blots were carried out to measure Neuropilin-1 expression and proteins related to apoptosis and autophagy. RESULTS GLP suppressed inflammatory cell infiltration. In BALF, cell counts were 1.1 × 106 (model) and 7.1 × 105 (100 mg/kg). Release of GM-CSF and IL-6 was reduced with GLP (25, 50 and 100 mg/kg) treatment. The expression of genes IL-1β, IL-6, TNF-α and Saa3 was reduced. GLP treatment also suppressed the activation of Neuropilin-1 (NRP1), upregulated the levels of Bcl2/Bax and LC3 and led to downregulation of the ratio C-Caspase 3/Caspase 3 and P62 expression. DISCUSSION AND CONCLUSIONS GLP could protect against LPS-induced acute pneumonia through multiple mechanisms: blocking the infiltration of inflammatory cells, inhibiting cytokine secretion, suppressing NRP1 activation and regulating pneumonocyte apoptosis and autophagy.
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Affiliation(s)
- Xuelian Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- NMPA Key Laboratory for Research and Evaluation of Pharmacovigilance, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Daoshun Wu
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- NMPA Key Laboratory for Research and Evaluation of Pharmacovigilance, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yu Tian
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
| | - Xiangdong Chen
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- NMPA Key Laboratory for Research and Evaluation of Pharmacovigilance, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jin Lan
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- NMPA Key Laboratory for Research and Evaluation of Pharmacovigilance, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Fei Wei
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- NMPA Key Laboratory for Research and Evaluation of Pharmacovigilance, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Ye Li
- Ganoherb (Fujian) Technology Corporation, Nanping, China
| | - Yun Luo
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- NMPA Key Laboratory for Research and Evaluation of Pharmacovigilance, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- NMPA Key Laboratory for Research and Evaluation of Pharmacovigilance, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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H3K27 tri-demethylase JMJD3 inhibits macrophage apoptosis by promoting ADORA2A in lipopolysaccharide-induced acute lung injury. Cell Death Dis 2022; 8:475. [PMID: 36456564 PMCID: PMC9715944 DOI: 10.1038/s41420-022-01268-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 11/14/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022]
Abstract
Acute lung injury (ALI) is a common critical disease, which is characterized by an uncontrolled, acute inflammatory response, diffuse lung damage and ultimately directly deteriorates into acute respiratory distress syndrome. The number of pro-inflammatory macrophages is related to the severity of ALI. Up-regulation of lipopolysaccharide (LPS)-activated macrophage apoptosis can reduce the pro-inflammatory reactions. Jumonji domain-containing protein D3 (JMJD3)-mediated histone 3 lysine 27 trimethylation (H3K27me3) demethylation may promote the pro-inflammatory response of macrophages under LPS stimulation. However, the mechanism of JMJD3 affecting macrophage apoptosis is still not clear. To explore this gap in knowledge, the ALI mice model with intratracheal administration of LPS and RAW264.7 cells with LPS stimulation were used as in vivo and in vitro experiments. The expression of JMJD3 and H3K27me3 and their cellular localization were analysed in lung tissue. Apoptosis was evaluated using TUNEL staining and flow cytometry. Expression of H3K27me3, ADORA2A and C/EBPβ were compared among different treatments and chromatin immunoprecipitation was performed to investigate the regulatory relationship. Our study showed that JMJD3 expression was upregulated in LPS-induced ALI mice and RAW264.7 cells. JMJD3-indued H3K27me3 demethylation inhibited caspase-3 cleavage by upregulating ADORA2A to decrease LPS-stimulated macrophage apoptosis and promoted the inflammatory reaction. This H3K27me3 demethylation also increased C/EBPβ expression, which may enhance ADORA2A expression further. Besides, inhibiting ADORA2A can also promote LPS-limited macrophage apoptosis. Moreover, the inhibition of JMJD3 in vivo and in vitro relieved the inhibition of macrophage apoptosis thus leading to the resolution of the inflammation. JMJD3 might inhibit macrophage apoptosis by promoting ADORA2A expression in LPS-induced ALI.
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22
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Luo L, Wang S, Chen B, Zhong M, Du R, Wei C, Huang F, Kou X, Xing Y, Tong G. Inhibition of inflammatory liver injury by the HMGB1-A box through HMGB1/TLR-4/NF-κB signaling in an acute liver failure mouse model. Front Pharmacol 2022; 13:990087. [PMID: 36313316 PMCID: PMC9614247 DOI: 10.3389/fphar.2022.990087] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/29/2022] [Indexed: 11/17/2022] Open
Abstract
We aimed to investigate the preventive effect of high mobility group box 1 (HMGB1)-A box and the mechanism by which it alleviates inflammatory injury in acute liver failure (ALF) by inhibiting the extracellular release of HMGB1. BALB/c mice were intraperitoneally (i.p.) administered LPS/D-GalN to establish an ALF mouse model. HMGB1-A box was administered (i.p.) 1 h before establishing the ALF mouse model. The levels of extracellularly released HMGB1, TLR-4/NF-κB signaling molecules, the proinflammatory cytokines TNF-α, IL-1β, and IL-6 and COX-2 were measured in the liver tissue and/or serum by Immunohistochemistry, Western blotting and Enzyme-linked immunosorbent assay (ELISA). The levels of extracellularly released HMGB1, TLR-4/NF-κB signaling molecules and proinflammatory cytokines were measured in Huh7 cells as well as LPS- and/or HMGB1-A box treatment by confocal microscopy, Western blotting and ELISA. In the ALF mouse model, the levels of HMGB1 were significantly increased both in the liver and serum, TLR-4/NF-κB signaling molecules and proinflammatory cytokines also was upregulated. Notably, HMGB1-A box could reverse these changes. HMGB1-A box could also cause these changes in LPS-induced Huh7 cells. HMGB1-A box played a protective role by inhibiting inflammatory liver injury via the regulation of HMGB1/TLR-4/NF-κB signaling in the LPS/D-GaIN-induced ALF mouse model, which may be related to inhibiting the extracellular release of HMGB1.
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Affiliation(s)
- Lidan Luo
- Department of Hepatology, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
- *Correspondence: Lidan Luo, ; Yufeng Xing, ; Guangdong Tong,
| | - Shuai Wang
- Department of Hepatology, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
| | - Bohao Chen
- Department of Hepatology, Shenzhen Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Shenzhen, China
| | - Mei Zhong
- Department of Hepatology, Shenzhen Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Shenzhen, China
| | - Ruili Du
- Department of Hepatology, Shenzhen Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Shenzhen, China
| | - ChunShan Wei
- Department of Hepatology, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
| | - Furong Huang
- Department of Hepatology, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
- Faculty of Chinese Medicine and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macao, China
| | - Xinhui Kou
- Department of Hepatology, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
| | - Yufeng Xing
- Department of Hepatology, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
- *Correspondence: Lidan Luo, ; Yufeng Xing, ; Guangdong Tong,
| | - Guangdong Tong
- Department of Hepatology, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, China
- Faculty of Chinese Medicine and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macao, China
- *Correspondence: Lidan Luo, ; Yufeng Xing, ; Guangdong Tong,
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Ling X, Zhou J, Jin T, Xu W, Sun X, Li W, Ding Y, Liang M, Zhu C, Zhao P, Hu C, Yuan B, Xie T, Tao J. Acteoside attenuates RSV-induced lung injury by suppressing necroptosis and regulating metabolism. Front Pharmacol 2022; 13:870928. [PMID: 36059973 PMCID: PMC9437591 DOI: 10.3389/fphar.2022.870928] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 07/29/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Necroptosis and inflammation are closely related to the pathogenesis of respiratory syncytial virus (RSV). Acteoside (AC), a natural phenylpropanoid glycoside from Kuding Tea, has significant anti-RSV effect. However, the roles of AC on RSV-induced lung necroptosis and inflammation are yet to be elucidated.Methods: The effects of AC were investigated in BALB/c mice and A549 cells. Lung histopathology was observed through H&E staining. The viral titer was assessed via plaque assay. The RSV-F expression was determined by RT-qPCR and immunohistochemistry assay. The levels of cytokines were detected by ELISA and RT-qPCR. The necroptosis rate and mitochondrial membrane potential were evaluated via flow cytometry. The expressions of HMGB1/NF-κB and RIP1/RIP3/MLKL/PGAM5/DRP1 were detected by western blot. Additionally, untargeted metabolomics was conducted to investigate the metabolic profiles and related metabolic pathways via Gas Chromatography-Mass Spectrometry.Results: The results showed that compared with the RSV-infected group, AC treatment significantly attenuated lung pathological damage, virus replication, and cytokines levels. AC also alleviated RSV-induced necroptosis and mitochondrial dysfunction in vitro and in vivo. Moreover, AC treatment down-regulated the expression of HMGB1, p-Iκbα/Iκbα, p-p65/p65, RIP1, RIP3, MLKL, PGAM5, and DRP1. Furthermore, metabolomic analyses suggested that the perturbations in major metabolites of AC therapy were related to variations in amino acid and energy metabolism.Conclusion: Our findings validated the beneficial effects of AC in suppressing necroptosis and regulating metabolism, suggesting AC may be a new drug candidate for RSV infection.
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Affiliation(s)
- Xiaoying Ling
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jie Zhou
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Tianzi Jin
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Weichen Xu
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xun Sun
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Weifeng Li
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yali Ding
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Miaomiao Liang
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Chenbi Zhu
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Peipei Zhao
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
| | - Chanchan Hu
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Bin Yuan
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Bin Yuan, ; Tong Xie, ; Jialei Tao,
| | - Tong Xie
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Bin Yuan, ; Tong Xie, ; Jialei Tao,
| | - Jialei Tao
- Department of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Bin Yuan, ; Tong Xie, ; Jialei Tao,
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24
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Zeng C, Hu J, Chen F, Huang T, Zhang L. The Coordination of mTOR Signaling and Non-Coding RNA in Regulating Epileptic Neuroinflammation. Front Immunol 2022; 13:924642. [PMID: 35898503 PMCID: PMC9310657 DOI: 10.3389/fimmu.2022.924642] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/16/2022] [Indexed: 11/13/2022] Open
Abstract
Epilepsy accounts for a significant proportion of the burden of neurological disorders. Neuroinflammation acting as the inflammatory response to epileptic seizures is characterized by aberrant regulation of inflammatory cells and molecules, and has been regarded as a key process in epilepsy where mTOR signaling serves as a pivotal modulator. Meanwhile, accumulating evidence has revealed that non-coding RNAs (ncRNAs) interfering with mTOR signaling are involved in neuroinflammation and therefore articipate in the development and progression of epilepsy. In this review, we highlight recent advances in the regulation of mTOR on neuroinflammatory cells and mediators, and feature the progresses of the interaction between ncRNAs and mTOR in epileptic neuroinflammation.
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Affiliation(s)
- Chudai Zeng
- Departments of Neurosurgery, and National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jason Hu
- Department of Neonatology, Yale School of Medicine, New Haven, CT, United States
| | - Fenghua Chen
- Departments of Neurosurgery, and National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Fenghua Chen, ; Tianxiang Huang, ; Longbo Zhang,
| | - Tianxiang Huang
- Departments of Neurosurgery, and National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Fenghua Chen, ; Tianxiang Huang, ; Longbo Zhang,
| | - Longbo Zhang
- Departments of Neurosurgery, and National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT, United States
- *Correspondence: Fenghua Chen, ; Tianxiang Huang, ; Longbo Zhang,
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25
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Wang L, Wang N, Shi G, Sun S. Follistatin-like 1 ameliorates severe acute pancreatitis associated lung injury via inhibiting the activation of NLRP3 inflammasome and NF-κB pathway. Am J Transl Res 2022; 14:4310-4320. [PMID: 35836868 PMCID: PMC9274554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVE Severe acute pancreatitis (SAP) is one of the most common abdominal conditions of digestive system that usually causes acute lung injury through systemic inflammation. Follistatin-like 1 (FSTL-1) has been reported to have anti-inflammatory and anti-apoptotic effects in a variety of diseases. The aim of this study was to investigate the effects of FSTL-1 on SAP-associated lung injury (SAPALI) and the underlying mechanism. METHODS SAP model was induced by intraperitoneal injection of the L-arginine in C57BL/6 mice. The haematoxylin and eosin (H&E) staining was applied to determine the severity of lung and pancreatic injury. ELISA kits were used to determine serum amylase and inflammatory cytokines levels. TUNEL staining was carried out to measure cell apoptosis. Western blotting was applied to analyze the related proteins of NLRP3 inflammasome and NF-κB pathways. RESULTS FSTL-1 was significantly increased in the lung of SAP mice. Knockout of FSTL-1 ameliorated pancreatic injury, lung injury, inflammation and apoptosis in mice with SAP. Moreover, the protein levels of NLRP3, ASC, Caspase-1, p-p65 and p-IκBα were obviously reduced in the FSTL-1 KO+SAP group in comparison with SAP group, suggesting that inhibition of FSTL-1 repressed the activation of the NLRP3 inflammasome and NF-κB pathway. CONCLUSION This study helps us understand the mechanism of FSTL-1 in SAPALI and might provide a potential new strategy for the treatment of SAPALI.
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Affiliation(s)
- Liming Wang
- Department of Critical Medicine, Weifang People’s HospitalWeifang 261041, Shandong, China
| | - Na Wang
- Department of Nursing, Weifang People’s HospitalWeifang 261041, Shandong, China
| | - Guifang Shi
- Department of Chinese Medicine, Weifang People’s HospitalWeifang 261041, Shandong, China
| | - Shuqing Sun
- Department of Critical Medicine, Weifang People’s HospitalWeifang 261041, Shandong, China
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Liu X, Zhang Y, Sun X, Zhang W, Shi X, Xu S. Di-(2-ethyl hexyl) phthalate induced oxidative stress promotes microplastics mediated apoptosis and necroptosis in mice skeletal muscle by inhibiting PI3K/AKT/mTOR pathway. Toxicology 2022; 474:153226. [PMID: 35659966 DOI: 10.1016/j.tox.2022.153226] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/22/2022] [Accepted: 05/29/2022] [Indexed: 01/18/2023]
Abstract
The plastic decomposition product microplastics (MPs) and the plastic additive Di (2-ethylhexyl) phthalate (DEHP) in the environment can damage various organs of the organism by inducing oxidative stress. The PI3K/AKT/mTOR signaling pathway participate in toxin-induced apoptosis and necroptosis. However, the effects of DEHP/MPs alone and combined exposure on skeletal muscle cell injury in mice and the role of PI3K/AKT/mTOR axis remain unclear. To investigate the effect of DEHP or/and MPs on skeletal muscle in mice and its possible toxicological mechanism, 60 mice were randomly divided into control group, DEHP group (DEHP 200 mg/kg dissolved in 50 mL corn oil mixed with 2.5 kg diet), MPs group (10 mg/L MPs in drinking water) and combined exposure group. In vitro, C2C12 cells were exposed to DEHP 600 μM/MPs 800 μM alone or in combination for 24 h. The results showed that DEHP/MPs exposure alone or in combination increased MDA content, decreased activities of CAT, T-AOC, SOD and GSH-Px, increased mRNA and protein expressions of Caspase-3, BAX, RIPK1, RIPK3 and MLKL, and decreased BCL-2 expression. The expression of PI3K/AKT/mTOR signaling pathway was significantly down-regulated. All the above results showed that the combined exposure group was more toxic, and similar experimental results were obtained by DEHP/MPs exposure test of C2C12 cells in vitro. It is suggested that DEHP/MPs can induce apoptosis and necroptosis by activating oxidative stress and down-regulating PI3K/AKT/mTOR pathway. This study provides new evidence for clarifying the possible mechanism of toxicity of DEHP and MPs to skeletal muscle of mice.
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Affiliation(s)
- Xiaojing Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yilei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Xinyue Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Wenyue Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Xu Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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MicroRNAs: Important Regulatory Molecules in Acute Lung Injury/Acute Respiratory Distress Syndrome. Int J Mol Sci 2022; 23:ijms23105545. [PMID: 35628354 PMCID: PMC9142048 DOI: 10.3390/ijms23105545] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/07/2022] [Accepted: 05/13/2022] [Indexed: 02/06/2023] Open
Abstract
Acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) is an overactivated inflammatory response caused by direct or indirect injuries that destroy lung parenchymal cells and dramatically reduce lung function. Although some research progress has been made in recent years, the pathogenesis of ALI/ARDS remains unclear due to its heterogeneity and etiology. MicroRNAs (miRNAs), a type of small noncoding RNA, play a vital role in various diseases. In ALI/ARDS, miRNAs can regulate inflammatory and immune responses by targeting specific molecules. Regulation of miRNA expression can reduce damage and promote the recovery of ALI/ARDS. Consequently, miRNAs are considered as potential diagnostic indicators and therapeutic targets of ALI/ARDS. Given that inflammation plays an important role in the pathogenesis of ALI/ARDS, we review the miRNAs involved in the inflammatory process of ALI/ARDS to provide new ideas for the pathogenesis, clinical diagnosis, and treatment of ALI/ARDS.
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