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Zhou X, Luo X. Shionone relieves oxygen-glucose deprivation/reoxygenation induced SH-SY5Y cells injury by inhibiting the p38 MAPK/NF-κB pathway. J Cardiothorac Surg 2024; 19:435. [PMID: 38997740 PMCID: PMC11241947 DOI: 10.1186/s13019-024-02938-x] [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] [Accepted: 06/16/2024] [Indexed: 07/14/2024] Open
Abstract
BACKGROUND Cerebral ischemia-reperfusion injury (I/R) can affect patient outcomes and can even be life-threatening. This study aimed to explore the role of Shionone in cerebral I/R and reveal its mechanism of action through the cerebral I/R in vitro model. METHODS SH-SY5Y cells were subjected to oxygen-glucose deprivation/reoxygenation (OGD/R) to induce cerebral I/R in vitro model. SH-SY5Y cells were treated with different concentrations of Shionone. Cell counting kit-8 and flow cytometry assays were used to detect cell viability and apoptosis levels. The levels of superoxide dismutase, catalase, and malondialdehyde were determined using their corresponding kits to examine the level of oxidative stress. The inflammation response was detected by IL-6, IL-1β, and TNF-α levels, using enzyme-linked-immunosorbent-assay. RT-qPCR was performed to measure the mRNA levels of p38 and NF-κB. Western blotting was used to quantify the apoptosis-related proteins and p38MAPK/NF-κB signaling pathway proteins. RESULTS Shionone exhibited no toxic effects on SH-SY5Y cells. Shionone inhibited OGD/R-induced cell apoptosis, improved the inflammatory response caused by OGD/R, and reduced the level of oxidative stress in cells. Western blot assay results showed that Shionone alleviated OGD/R-induced injury by inhibiting the activity of the p38 MAPK/NF-κB signaling pathway. The p38/MAPK agonist P79350 reversed the beneficial effects of Shionone. CONCLUSION Shionone alleviates cerebral I/R and may thus be a novel therapeutic strategy for treating cerebral I/R.
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Affiliation(s)
- Xiaoli Zhou
- Department of Neurology, The Affiliated Hospital of Hubei University of Chinese Medicine, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, 430061, China
| | - Xueting Luo
- Department of Cardiovascular Medicine, The Affiliated Hospital of Hubei University of Chinese Medicine, Hubei Provincial Hospital of Traditional Chinese Medicine, No. 856 Luoyu Road, Hongshan District, Wuhan, 430061, China.
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Song Y, Fu Y, Wang J, Tang J, Yin J, Zhang Z, Song Q, Zhang B. Complement C1q induces the M2-polarization of tumor-associated macrophages in lung adenocarcinoma. Genes Dis 2024; 11:101093. [PMID: 38510481 PMCID: PMC10951452 DOI: 10.1016/j.gendis.2023.101093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 05/18/2023] [Accepted: 07/03/2023] [Indexed: 03/22/2024] Open
Affiliation(s)
- Yuxiao Song
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430061, China
| | - Yang Fu
- Department of Oncology, Xiangyang Hospital, Hubei University of Chinese Medicine, Xiangyang, Hubei 441100, China
| | - Jun Wang
- Department of Oncology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250000, China
| | - Jiazhuo Tang
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430061, China
| | - Jiaxin Yin
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430061, China
| | - Zhimin Zhang
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430061, China
| | - Qibin Song
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430061, China
| | - Bicheng Zhang
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, Hubei 430061, China
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Wang G, Xie W, Deng L, Huang X, Sun M, Liu W, Tang S. Nrf2 mediates the effects of shionone on silica-induced pulmonary fibrosis. Chin Med 2024; 19:88. [PMID: 38898509 PMCID: PMC11188511 DOI: 10.1186/s13020-024-00947-5] [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: 11/29/2023] [Accepted: 05/19/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND Extended contact with silica particles can lead to Silicosis, a chronic lung condition lacking established treatment protocols or clear mechanisms of development. The urgency for innovative treatments arises from the unavailability of effective treatment methodologies. The origin of silica-induced pulmonary fibrosis includes essential processes such as macrophage activation and the conversion of fibroblasts into myofibroblasts, with oxidative stress playing a pivotal role. Shionone (SHI), a triterpenoid extracted from the Aster tataricus plant, is recognized for its extensive health benefits. This study explores the capability of SHI to alleviate the effects of silica-induced lung fibrosis in mice. METHODS This investigation explored the impact of SHI on lung inflammation and fibrosis at different stages (early and late) triggered by silica in mice, focusing specifically on the initial and more developed phases. It comprised an analysis of isolated peritoneal macrophages and fibroblasts extracted from mice to elucidate SHI's therapeutic potential and its underlying mechanism. The methodology employed encompassed quantitative PCR, immunofluorescence, flow cytometry, and western blotting to examine macrophage activity and their transition into myofibroblasts. The activation of the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway by SHI was confirmed via immunofluorescence and western blot studies. SHI's antioxidative properties were evidenced by the measurement of reactive oxygen species (ROS) and mitochondrial ROS within both macrophages and fibroblasts, using 2', 7'-dichlorodihydrofluorescein diacetate and MitoSOX, respectively. The relevance of SHI was further underscored by applying ML385 and Nrf2 siRNA to gauge its effectiveness. RESULTS Starting SHI treatment early countered the harmful effects of lung inflammation and fibrosis caused by silica, while initiating SHI at a later phase decelerated the advancement of fibrosis. SHI's action was linked to the activation of the Nrf2 signaling pathway, a boost in antioxidant enzyme levels, and a decrease in oxidative stress and inflammation in macrophages affected by silica. Furthermore, SHI prevented the conversion of fibroblasts into myofibroblasts prompted by TGF-β, along with the resultant oxidative stress. The beneficial outcomes of SHI were negated when ML385 and Nrf2 siRNA were applied, highlighting the pivotal role of the Nrf2 pathway in SHI's efficacy. CONCLUSION SHI plays a significant role in stimulating the Nrf2 pathway, thereby defending against silica-induced oxidative stress and inflammatory reactions in macrophages, and inhibiting the conversion of fibroblasts to myofibroblasts due to TGF-β. This suggests that SHI is a viable option for treating lung inflammation and fibrosis in mice suffering from silicosis.
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Affiliation(s)
- Guiyun Wang
- Shandong Xiehe University, Jinan, Shandong, China
| | - Weixi Xie
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Lang Deng
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Xiaoting Huang
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Mei Sun
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Wei Liu
- Xiangya Nursing School, Central South University, Changsha, Hunan, China.
| | - Siyuan Tang
- Xiangya Nursing School, Central South University, Changsha, Hunan, China.
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Xu Y, Xin J, Sun Y, Wang X, Sun L, Zhao F, Niu C, Liu S. Mechanisms of Sepsis-Induced Acute Lung Injury and Advancements of Natural Small Molecules in Its Treatment. Pharmaceuticals (Basel) 2024; 17:472. [PMID: 38675431 PMCID: PMC11054595 DOI: 10.3390/ph17040472] [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: 03/13/2024] [Revised: 04/02/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Sepsis-induced acute lung injury (ALI), characterized by widespread lung dysfunction, is associated with significant morbidity and mortality due to the lack of effective pharmacological treatments available clinically. Small-molecule compounds derived from natural products represent an innovative source and have demonstrated therapeutic potential against sepsis-induced ALI. These natural small molecules may provide a promising alternative treatment option for sepsis-induced ALI. This review aims to summarize the pathogenesis of sepsis and potential therapeutic targets. It assembles critical updates (from 2014 to 2024) on natural small molecules with therapeutic potential against sepsis-induced ALI, detailing their sources, structures, effects, and mechanisms of action.
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Affiliation(s)
- Yaxi Xu
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Jianzeng Xin
- School of Life Sciences, Yantai University, Yantai 264005, China;
| | - Yupei Sun
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Xuyan Wang
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Lili Sun
- College of Pharmacy, University of Utah, Salt Lake City, UT 84108, USA;
| | - Feng Zhao
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Changshan Niu
- College of Pharmacy, University of Utah, Salt Lake City, UT 84108, USA;
| | - Sheng Liu
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
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Chen J, Zhou L, Li X, Wu X, Li Y, Si L, Deng Y. Protective effect of zerumbone on sepsis-induced acute lung injury through anti-inflammatory and antioxidative activity via NF-κB pathway inhibition and HO-1 activation. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:2241-2255. [PMID: 37812239 DOI: 10.1007/s00210-023-02706-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 08/30/2023] [Indexed: 10/10/2023]
Abstract
Sepsis is a systemic illness for which there are no effective preventive or therapeutic therapies. Zerumbone, a natural molecule, has anti-oxidative and anti-inflammatory properties that may help to prevent sepsis. In the present study, we have assessed the protective effect of zerumbone against sepsis-induced acute lung injury (ALI) and its underlying mechanisms. During the experiment, mice were divided into five groups: a sham group, a sepsis-induced ALI group, and three sepsis groups that are pre-treated with zerumbone at different concentrations. We found that zerumbone greatly decreased the sepsis-induced ALI using histological investigations. Also, zerumbone treatment reduced the sepsis-induced inflammatory cytokine concentrations as well as the number of infiltrating inflammatory cells in BALF compared to non-treated sepsis animals. The zerumbone-pretreated sepsis groups had reduced pulmonary myeloperoxidase (MPO) activity than the sepsis groups. Moreover, the mechanism underlying the protective action of zerumbone on sepsis is accomplished by the activation of antioxidant genes such as nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), superoxide dismutase (SOD), and heme oxygenase 1 (HO-1). The obtained results revealed that zerumbone inhibited the sepsis-induced ALI through its anti-inflammatory and antioxidative activity via inhibition of the NF-κB pathway and activation of HO-1 pathway. Our findings demonstrate that zerumbone pretreatment suppresses sepsis-induced ALI via antioxidative activities and anti-inflammatory, implying that zerumbone could be a viable preventive agent for sepsis-induced ALI.
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Affiliation(s)
- Jianjun Chen
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Liangliang Zhou
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Xinxin Li
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Xufeng Wu
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Yingbin Li
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Linjie Si
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China.
| | - Yijun Deng
- Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, Yancheng, Jiangsu Province, China.
- Department of Emergency Medicine, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China.
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Jaiswal V, Lee HJ. Pharmacological Properties of Shionone: Potential Anti-Inflammatory Phytochemical against Different Diseases. Molecules 2023; 29:189. [PMID: 38202771 PMCID: PMC10780092 DOI: 10.3390/molecules29010189] [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: 11/15/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
Shionone is a triterpenoid that is the primary constituent of an important ancient Chinese medicine named Radix Asteris. It has emerged as an attractive candidate against different important diseases, including interstitial cystitis, colitis, cancer, Parkinson's disease, and urinary tract infections, and was found to have a protective effect on multiple organs, including the colon, kidneys, lungs, brain, and bladder. The anti-inflammation activity of shionone may be considered an important property that imparts the positive health outcomes of shionone. Important molecular targets and markers such as TNF-α, STAT3, NLRP3, and NF-κB were also found to be targeted by shionone and were verified in different diseases. This suggests the possible potential of shionone against other diseases associated with these targets. Pharmacokinetic studies also support the therapeutic potential of shionone and provide the initial track that may be pursued for its development. Yet, the compilation of the pharmacological activities of shionone and its important genes and pathway targets are absent in the existing literature, which would direct its development as a therapeutic and/or supplement. Hence, the present review provides a compilation of information concerning pharmacological activities, highlights the existing holes, and proposes a specific direction for the expansion of shionone as a therapeutic against different diseases and conditions.
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Affiliation(s)
- Varun Jaiswal
- Department of Food and Nutrition, College of BioNano Technology, Gachon University, Seongnam 13120, Republic of Korea;
| | - Hae-Jeung Lee
- Department of Food and Nutrition, College of BioNano Technology, Gachon University, Seongnam 13120, Republic of Korea;
- Institute for Aging and Clinical Nutrition Research, Gachon University, Seongnam 13120, Republic of Korea
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea
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7
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Zhao R, He T, Xing Y, Luo J. COG1410 regulates microglial states and protects retinal ganglion cells in retinal ischemia-reperfusion injury. Exp Eye Res 2023; 237:109678. [PMID: 37839665 DOI: 10.1016/j.exer.2023.109678] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/26/2023] [Accepted: 10/12/2023] [Indexed: 10/17/2023]
Abstract
Progressive loss of retinal ganglion cells (RGCs) caused by retinal ischemia-reperfusion (IR) injury can lead to irreversible vision impairment, with neuroinflammatory responses playing an important role in this process. COG1410, a mimetic peptide of apolipoprotein E, has demonstrated protective potential in the central nervous system, but its effects on retinal IR injury remain unexplored. In this study, we established a mouse model of retinal IR injury to investigate the effects of COG1410 on retinal microglia and RGCs. We observed CD16/32-marked and CD206-marked microglia and RGCs using immunofluorescence staining, detected the expression of inflammatory factors by PCR, and evaluated retinal apoptosis with TUNEL staining. We further investigated the potential mechanism by detecting the expression of key proteins via Western blot. The results reveal that COG1410 decreased the number of CD16/32-marked microglia and increased the number of CD206-marked microglia, alleviated the expression of IL-1β and TNF-α, and reduced the loss of RGCs by inhibiting the mitochondrial-related apoptotic pathway. COG1410 was found to increase the expression of ERK1/2 and Nr4a1 but decrease the expression of NF-κB. The expression of TREM2 showed an increasing trend after COG1410 administration, but it was not statistically significant. In conclusion, COG1410 regulates microglial states and protects RGCs in retinal IR injury, showing promising potential for the treatment of eye diseases.
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Affiliation(s)
- Ru Zhao
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Tao He
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yiqiao Xing
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jinyuan Luo
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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8
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Huang J, Ren K, Huang L. Coptisine attenuates sepsis lung injury by suppressing LPS-induced lung epithelial cell inflammation and apoptosis. Allergol Immunopathol (Madr) 2023; 51:30-36. [PMID: 37937493 DOI: 10.15586/aei.v51i6.972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 08/24/2023] [Indexed: 11/09/2023]
Abstract
OBJECTIVE This study aimed to investigate the functioning and mechanism of coptisine in acute lung injury (ALI). METHODS Murine Lung Epithelial 12 (MLE-12) cells were stimulated with lipopolysaccharide (LPS) to construct an in vitro pulmonary injury model to study the functioning of coptisine in sepsis-induced ALI. The viability of MLE-12 cells was assessed by the cell counting kit-8 assay. The cytokine release of tumor necrosis factor-α (TNF-α), interleukin 6 (IL-6), and IL-1β was measured by enzyme-linked-immunosorbent serologic assay. The relative expression levels of TNF-α, IL-6, and IL-1β mRNA were examined by reverse transcription-quantitative polymerase chain reaction. The cell apoptosis of MLE-12 cells was determined by Annexin V/propidium iodide staining and analyzed by flow cytometry. The expressions of apoptosis-related proteins Bax and cleaved Caspase-3 were observed by Western blot analysis. The activation of nuclear factor kappa B (NF-κB) signaling pathway was discovered by the determination of phospho-p65, p65, phospho-nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor alpha (IκBα), and IκBα through Western blot analysis. RESULTS Coptisine treatment could significantly restore decrease in MLE-12 cell viability caused by LPS stimulation. The release of TNF-α, IL-6, and IL-1β was significantly inhibited by coptisine treatment. Coptisine treatment inhibited MLE-12 cell apoptosis induced by LPS, and also inhibited the expression levels of Bax and cleaved Caspase-3. Coptisine treatment along with LPS stimulation, significantly reduced the protein level of phospho-IκBα, increased the level of IκBα, and reduced phospho-p65-p65 ratio. CONCLUSION These results indicated that coptisine attenuated sepsis lung injury by suppressing lung epithelial cell inflammation and apoptosis through NF-κB pathway. Therefore, coptisine may have potential to treat sepsis-induced ALI.
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Affiliation(s)
- Junjun Huang
- Department of Intensive Care Unit, Affiliated Nantong Third Hospital of Nantong University (Nantong Third People's Hospital), Nantong City, Jiangsu Province, China
| | - Ke Ren
- Department of Intensive Care Unit, Affiliated Nantong Third Hospital of Nantong University (Nantong Third People's Hospital), Nantong City, Jiangsu Province, China
| | - Lili Huang
- Department of Respiratory Medicine, Affiliated Nantong Third Hospital of Nantong University (Nantong Third People's Hospital), Nantong City, Jiangsu Province, China;
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Ma K, Liu W, Liu Q, Hu P, Bai L, Yu M, Yang Y. Naringenin facilitates M2 macrophage polarization after myocardial ischemia-reperfusion by promoting nuclear translocation of transcription factor EB and inhibiting the NLRP3 inflammasome pathway. ENVIRONMENTAL TOXICOLOGY 2023; 38:1405-1419. [PMID: 36988289 DOI: 10.1002/tox.23774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 02/22/2023] [Accepted: 02/25/2023] [Indexed: 05/18/2023]
Abstract
Myocardial ischemia-reperfusion injury (MIRI) remains an unsolved puzzle in medical circles. Naringenin (NAR) is a flavonoid with cardioprotective potential. The purpose of this article was to discuss the protective mechanism of NAR in MIRI by regulating macrophage polarization. The MIRI mouse model was established and perfused with NAR before surgery. In the in vitro experiment, macrophages RAW264.7 were treated with lipopolysaccharide to induce M1 polarization after pretreatment with NAR. Rescue experiments were carried out to validate the functions of transcription factor EB (TFEB), the NLR pyrin domain containing 3 (NLRP3) inflammasome, and autophagy in macrophage polarization. NAR reduced histopathological injury and infarction of myocardial tissues in MIRI mice, inhibited M1 polarization and promoted M2 polarization of macrophages, diminished levels of pro-inflammatory factors, and augmented levels of anti-inflammatory factors. NAR facilitated TFEB nuclear translocation and inhibited the NLRP3 inflammasome pathway. Silencing TFEB or Nigericin partly nullified the effect of NAR on macrophage polarization. NAR increased autophagosome formation, autophagy flux, and autophagy level. Autophagy inhibitor 3-methyladenine partly invalidated the inhibition of NAR on the NLRP3 inflammasome pathway. In animal experiments, NAR protected MIRI mice through the TFEB-autophagy-NLRP3 inflammasome pathway. Collectively, NAR inhibited NLRP3 inflammasome activation and facilitated M2 macrophage polarization by stimulating TFEB nuclear translocation, thus protecting against MIRI.
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Affiliation(s)
- Kuiying Ma
- Department of Cardiovascular Medicine, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao City, China
| | - Wenqing Liu
- Department of Cardiovascular Medicine, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao City, China
| | - Qi Liu
- Emergency Department, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao City, China
| | - Pengfei Hu
- Department of Cardiovascular Medicine, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao City, China
| | - Lingyu Bai
- Department of Cardiovascular Medicine, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao City, China
| | - Miao Yu
- Department of Cardiovascular Medicine, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao City, China
| | - Yan Yang
- Department of General Medicine, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao City, China
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10
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Zhu J, Lin X, Yan C, Yang S, Xu Z. Tocilizumab attenuates acute lung injury in rats with sepsis by regulating S100A12/NLRP3. Am J Transl Res 2023; 15:99-113. [PMID: 36777861 PMCID: PMC9908452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/09/2022] [Indexed: 02/14/2023]
Abstract
OBJECTIVE To investigate the mechanism of Tocilizumab (TCZ) in attenuating acute lung injury in rats with sepsis by regulating the S100A12/NLRP3 axis. METHODS A rat model of sepsis was constructed using cecal ligation and puncture (CLP). Rats were treated with TCZ, and their lung tissue was collected. H&E staining was used to detect pathologic damage to lung tissue, and lung wet/dry (W/D) weight ratio was measured to assess pulmonary edema. Lipid oxidation assay and superoxide dismutase (SOD) activity assay kits were used to measure malondialdehyde (MDA) and SOD levels. Primary rat pulmonary microvascular endothelial cells (MPVECs) were treated with lipopolysaccharide (LPS) to construct a rat model of sepsis, which was then treated with TCZ. The mRNA and protein expressions of S100A12/NLRP3 were detected by qRT-PCR and western blot, respectively. S100A12 knockdown and overexpression plasmids, and NLRP3 knockdown plasmids were constructed and transfected into sepsis cells to intervene in the levels of S100A12/NLRP3. The apoptosis rate was detected by apoptosis assay. The levels of IL-6, TNF-α, and IL-10 in cells and tissues were analyzed by ELISA. RESULTS Compared to the Sham group, the CLP group had increased W/D weight ratio of lung tissue, IL-6, TNF-α, and MDA levels, lowered IL-10 and SOD levels, and more severe tissue damage (all P<0.05). After TCZ treatment, the above indicators were improved. The expressions of S100A12/NLRP3 cells were increased in LPS-induced MPVECs, but decreased after TCZ treatment. LPS induced apoptosis, but TCZ reduced the apoptosis, weakened the secretion levels of IL-6 and TNF-α, and enhanced IL-10 secretion levels. Transfection to cause the overexpression of S100A12 or NLRP3 plasmid partially counteracted the effect of TCZ. Knockdown of S100A12 was transfected on the basis of overexpression of NLRP3, which weakened the countervailing effect of overexpressed NLRP3 on TCZ. CONCLUSION TCZ has a therapeutic effect on lung injury in rats with sepsis by reducing the expressions of S100A12/NLRP3.
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Affiliation(s)
- Jingfa Zhu
- Department of Emergency, Quanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhou 362000, Fujian, China
| | - Xinyu Lin
- Department of Emergency, Fujian Medical University Union HospitalFuzhou 350001, Fujian, China
| | - Cairong Yan
- Department of Emergency, Quanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhou 362000, Fujian, China
| | - Shaodong Yang
- Department of Emergency, Quanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhou 362000, Fujian, China
| | - Zhenwei Xu
- Department of Emergency, Quanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhou 362000, Fujian, China
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11
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Du R, Wang T, Lv H, Zou Y, Hou X, Hou N, Zhang P, Li H, Chi G. Shionone-Targeted Pneumolysin to Ameliorate Acute Lung Injury Induced by Streptococcus pneumoniae In Vivo and In Vitro. Molecules 2022; 27:molecules27196258. [PMID: 36234795 PMCID: PMC9573397 DOI: 10.3390/molecules27196258] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 12/02/2022] Open
Abstract
Streptococcus pneumoniae (S. pneumoniae), as a Gram-positive bacterium, can cause severe bacterial pneumonia, and result in high morbidity and mortality in infected people. Meanwhile, isolated drug-resistant S. pneumoniae is growing, which raises concerns about strategies for combatting S. pneumoniae infection. To disturb S. pneumoniae pathogenicity and its drug-resistance, developing novel anti-infective strategies or compounds is urgent. In this study, the anti-infective effect of shionone was explored. A minimum inhibitory concentration (MIC) assay and growth curve determination were performed to evaluate the effect of the tetracyclic triterpenoid compound shionone against S. pneumoniae. Hemolysis tests, western blotting, oligomerization inhibition assays, and molecular docking were carried out to explore the anti-infective mechanism of shionone. Moreover, the protective effect of shionone was also confirmed in a mousepneumonia model. The results showed that the excellent hemolytic inhibitory activity of shionone was observed at less than 8 μg/mL. Meanwhile, shionone could disturb the oligomerization of pneumolysin (PLY) but did not interfere with PLY expression at less than 4 μg/mL. Molecular docking suggested that shionone targeted the ASP-59, ILE-60, THR-57, PHE-344, and ASN-346 amino acid sites to reduce S. pneumoniae pathogenicity. Furthermore, shionone alleviated lung histopathologic injury and decreased lung bacterial colonization in vivo. The above results showed that shionone could bind to the PLY active pocket under the concentrations of 8 μg/mL and neutralize PLY hemolysis activity to reduce S. pneumoniae pathogenicity in vitro and in vivo.
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Affiliation(s)
- Runbao Du
- The Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010107, China
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun 130062, China
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Tian Wang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Hongfa Lv
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun 130062, China
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yinuo Zou
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun 130062, China
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xiaoning Hou
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun 130062, China
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Nana Hou
- The Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010107, China
| | - Peng Zhang
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun 130062, China
| | - Hongen Li
- Department of Ophthalmology, The First Medical Center, Chinese People’s Liberation Army General Hospital, Beijing 100039, China
- Correspondence: (H.L.); (G.C.)
| | - Gefu Chi
- The Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010107, China
- Correspondence: (H.L.); (G.C.)
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Wang XH, Xu DQ, Chen YY, Yue SJ, Fu RJ, Huang L, Tang YP. Traditional Chinese Medicine: A promising strategy to regulate inflammation, intestinal disorders and impaired immune function due to sepsis. Front Pharmacol 2022; 13:952938. [PMID: 36188532 PMCID: PMC9523403 DOI: 10.3389/fphar.2022.952938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Sepsis is described as a dysregulation of the immune response to infection, which leads to life-threatening organ dysfunction. The interaction between intestinal microbiota and sepsis can’t be ignored. Furthermore, the intestinal microbiota may regulate the progress of sepsis and attenuate organ damage. Thus, maintaining or restoring microbiota may be a new way to treat sepsis. Traditional Chinese medicine (TCM) assumes a significant part in the treatment of sepsis through multi-component, multi-pathway, and multi-targeting abilities. Moreover, TCM can prevent the progress of sepsis and improve the prognosis of patients with sepsis by improving the imbalance of intestinal microbiota, improving immunity and reducing the damage to the intestinal barrier. This paper expounds the interaction between intestinal microbiota and sepsis, then reviews the current research on the treatment of sepsis with TCM, to provide a theoretical basis for its clinical application.
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