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Herrnreiter CJ, Luck ME, Cannon AR, Li X, Choudhry MA. Reduced Expression of miR-146a Potentiates Intestinal Inflammation following Alcohol and Burn Injury. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:881-893. [PMID: 38189569 PMCID: PMC10922766 DOI: 10.4049/jimmunol.2300405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 12/13/2023] [Indexed: 01/09/2024]
Abstract
MicroRNAs (miRNAs) are small noncoding RNA molecules that negatively regulate gene expression. Within the intestinal epithelium, miRNAs play a critical role in gut homeostasis, and aberrant miRNA expression has been implicated in various disorders associated with intestinal inflammation and barrier disruption. In this study, we sought to profile changes in intestinal epithelial cell miRNA expression after alcohol and burn injury and elucidate their impact on inflammation and barrier integrity. Using a mouse model of acute ethanol intoxication and burn injury, we found that small intestinal epithelial cell expression of miR-146a is significantly decreased 1 d following injury. Using in vitro studies, we show that reduced miR-146a promotes intestinal epithelial cell inflammation by promoting p38 MAPK signaling via increased levels of its target TRAF6 (TNFR-associated factor 6). Furthermore, we demonstrate that in vivo miR-146a overexpression significantly inhibits intestinal inflammation 1 d following combined injury and potentially supports intestinal barrier homeostasis. Overall, this study highlights the important impact that miRNA expression can have on intestinal homeostasis and the valuable potential of harnessing aberrant miRNA expression as a therapeutic target to control intestinal inflammation.
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Affiliation(s)
- Caroline J. Herrnreiter
- Biochemistry, Molecular and Cancer Biology Program, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Alcohol Research Program, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Stritch School of Medicine, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
| | - Marisa E. Luck
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Alcohol Research Program, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Stritch School of Medicine, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
| | - Abigail R. Cannon
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Alcohol Research Program, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Stritch School of Medicine, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
| | - Xiaoling Li
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Alcohol Research Program, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Stritch School of Medicine, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
| | - Mashkoor A. Choudhry
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Alcohol Research Program, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
- Stritch School of Medicine, Loyola University Chicago Health Sciences Division, Maywood, IL 60153, USA
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Zhao J, Zhao Q, Duan Q. Circ_0114428 knockdown inhibits ROCK2 expression to assuage lipopolysaccharide-induced human pulmonary alveolar epithelial cell injury through miR-574-5p. J Physiol Sci 2024; 74:5. [PMID: 38297223 PMCID: PMC10829305 DOI: 10.1186/s12576-023-00891-3] [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: 06/26/2023] [Accepted: 11/19/2023] [Indexed: 02/02/2024]
Abstract
BACKGROUND Sepsis-induced acute lung injury (ALI) accounts for about 40% of ALI, accompanied by alveolar epithelial injury. The study aimed to reveal the role of circular RNA_0114428 (circ_0114428) in sepsis-induced ALI. METHODS Human pulmonary alveolar epithelial cells (HPAEpiCs) were treated with lipopolysaccharide (LPS) to mimic a sepsis-induced ALI cell model. RNA expression of circ_0114428, miR-574-5p and Rho-associated coiled-coil containing protein kinase 2 (ROCK2) was detected by qRT-PCR. Protein expression was checked by Western blotting. Cell viability, proliferation and apoptosis were investigated by cell counting kit-8, 5-Ethynyl-29-deoxyuridine (EdU) and flow cytometry analysis, respectively. The levels of pro-inflammatory factors were detected by enzyme-linked immunosorbent assay (ELISA). Oxidative stress was analyzed by lipid peroxidation Malondialdehyde (MDA) and Superoxide Dismutase (SOD) activity detection assays. The interplay among circ_0114428, miR-574-5p and ROCK2 was identified by dual-luciferase reporter, RNA pull-down and RNA immunoprecipitation assays. RESULTS Circ_0114428 and ROCK2 expression were significantly increased, but miR-574-5p was decreased in blood samples from sepsis patients and LPS-stimulated HPAEpiCs. LPS treatment led to decreased cell viability and proliferation and increased cell apoptosis, inflammation and oxidative stress; however, these effects were relieved after circ_0114428 knockdown. Besides, circ_0114428 acted as a miR-574-5p sponge and regulated LPS-treated HPAEpiC disorders through miR-574-5p. Meanwhile, ROCK2 was identified as a miR-574-5p target, and its silencing protected against LPS-induced cell injury. Importantly, circ_0114428 knockdown inhibited ROCK2 production by interacting with miR-574-5p. CONCLUSION Circ_0114428 knockdown protected against LPS-induced HPAEpiC injury through miR-574-5p/ROCK2 axis, providing a novel therapeutic target in sepsis-induced ALI.
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Affiliation(s)
- Jing Zhao
- Department of Critical Care Medicine, Yantai City Yantaishan Hospital, Keji Avenue, Laishan District, Yantai, 10087, Shandong, China
| | - Qin Zhao
- Emergency Internal Medicine Department, Weifang People's Hospital, Weifang, Shandong, China
| | - Qiuxia Duan
- Department of Critical Care Medicine, The Third People's Hospital of Qingdao, No. 29 Yongping Road, Licang District, Qingdao, 266000, Shandong, China.
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Zhang J, Chen S, Hu X, Huang L, Loh P, Yuan X, Liu Z, Lian J, Geng L, Chen Z, Guo Y, Chen B. The role of the peripheral system dysfunction in the pathogenesis of sepsis-associated encephalopathy. Front Microbiol 2024; 15:1337994. [PMID: 38298892 PMCID: PMC10828041 DOI: 10.3389/fmicb.2024.1337994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/04/2024] [Indexed: 02/02/2024] Open
Abstract
Sepsis is a condition that greatly impacts the brain, leading to neurological dysfunction and heightened mortality rates, making it one of the primary organs affected. Injury to the central nervous system can be attributed to dysfunction of various organs throughout the entire body and imbalances within the peripheral immune system. Furthermore, central nervous system injury can create a vicious circle with infection-induced peripheral immune disorders. We collate the pathogenesis of septic encephalopathy, which involves microglial activation, programmed cell death, mitochondrial dysfunction, endoplasmic reticulum stress, neurotransmitter imbalance, and blood-brain barrier disruption. We also spotlight the effects of intestinal flora and its metabolites, enterocyte-derived exosomes, cholinergic anti-inflammatory pathway, peripheral T cells and their cytokines on septic encephalopathy.
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Affiliation(s)
- Jingyu Zhang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shuangli Chen
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiyou Hu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lihong Huang
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - PeiYong Loh
- School of International Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinru Yuan
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhen Liu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jinyu Lian
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lianqi Geng
- Binhai New Area Hospital of TCM, Fourth Teaching Hospital of Tianjin University of TCM, Tianjin, China
| | - Zelin Chen
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Modern Chinese Medicine Theory of Innovation and Application, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- School of Acupuncture and Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Yi Guo
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Modern Chinese Medicine Theory of Innovation and Application, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo Chen
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Binhai New Area Hospital of TCM, Fourth Teaching Hospital of Tianjin University of TCM, Tianjin, China
- Tianjin Key Laboratory of Modern Chinese Medicine Theory of Innovation and Application, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- School of Acupuncture and Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
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Wierzbicka A, Pawlina-Tyszko K, Świątkiewicz M, Szmatoła T, Oczkowicz M. Changes in miRNA expression in the lungs of pigs supplemented with different levels and forms of vitamin D. Mol Biol Rep 2023; 51:8. [PMID: 38085380 PMCID: PMC10716066 DOI: 10.1007/s11033-023-08940-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/23/2023] [Indexed: 12/18/2023]
Abstract
BACKGROUND Vitamin D is an immunomodulator, and its effects have been linked to many diseases, including the pathogenesis of cancer. However, the effect of vitamin D supplementation on the regulation of gene expression of the lungs is not fully understood. This study aims to determine the effect of the increased dose of cholecalciferol and a combination of cholecalciferol + calcidiol, as well as the replacement of cholecalciferol with calcidiol, on the miRNA profile of healthy swine lungs. METHODS AND RESULTS The swine were long-term (88 days) supplemented with a standard dose (2000IU/kg) of cholecalciferol and calcidiol, the increased dose (3000 IU/kg) of cholecalciferol, and the cholecalciferol + calcidiol combination: grower: 3000 IU/Kg of vitamin D (67% of cholecalciferol and 33% of calcidiol), finisher 2500 IU/Kg of vitamin D (60% of cholecalciferol and 40% of calcidiol). Swine lung tissue was used for Next Generation Sequencing (NGS) of miRNA. Long-term supplementation with the cholecalciferol + calcidiol combination caused significant changes in the miRNA profile. They embraced altered levels of the expression of miR-150, miR-193, miR-145, miR-574, miR-340, miR-381, miR-148 and miR-96 (q-value < 0.05). In contrast, raising the dose of cholecalciferol only changed the expression of miR-215, and the total replacement of cholecalciferol with calcidiol did not significantly affect the miRNAome profile. CONCLUSIONS The functional analysis of differentially expressed miRNAs suggests that the use of the increased dose of the cholecalciferol + calcidiol combination may affect tumorigenesis processes through, inter alia, modulation of gene regulation of the TGF- β pathway and pathways related to metabolism and synthesis of glycan.
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Affiliation(s)
- Alicja Wierzbicka
- Department of Animal Molecular Biology, National Research Institute of Animal Production, Ul. Krakowska 1, Balice, 32-083, Poland
| | - Klaudia Pawlina-Tyszko
- Department of Animal Molecular Biology, National Research Institute of Animal Production, Ul. Krakowska 1, Balice, 32-083, Poland
| | - Małgorzata Świątkiewicz
- Department of Animal Nutrition and Feed Science, National Research Institute of Animal Production, Ul. Krakowska 1, Balice, 32-083, Poland
| | - Tomasz Szmatoła
- Department of Animal Molecular Biology, National Research Institute of Animal Production, Ul. Krakowska 1, Balice, 32-083, Poland
- Center for Experimental and Innovative Medicine, University of Agriculture in Kraków, Rędzina 1c, Kraków, 30 248, Poland
| | - Maria Oczkowicz
- Department of Animal Molecular Biology, National Research Institute of Animal Production, Ul. Krakowska 1, Balice, 32-083, Poland.
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Sigma-1 Receptor as a Protective Factor for Diabetes-Associated Cognitive Dysfunction via Regulating Astrocytic Endoplasmic Reticulum-Mitochondrion Contact and Endoplasmic Reticulum Stress. Cells 2023; 12:cells12010197. [PMID: 36611988 PMCID: PMC9818229 DOI: 10.3390/cells12010197] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/19/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023] Open
Abstract
The prevalence of diabetes-associated cognitive dysfunction (DACD) has increased to 13.5%. Dementia, as the most severe DACD, is the second leading cause of death in patients with diabetes mellitus. Hence, the potential mechanisms of DACD for slowing or halting its progression need to be urgently explored. Given that the sigma-1 receptor (Sig-1R), a chaperone protein located in the endoplasmic reticulum (ER)-mitochondrion contact membranes to regulate ER stress (ERS), is associated with cognitive outcomes in neurodegenerative diseases, this study aimed to investigate the role of astrocytic Sig-1R in DACD and its underlying mechanism. Here, we examined the levels of ERS and complement component 3/3a (C3/C3a) from primary astrocytes with different concentrations of glucose and treatment. Subsequently, HT22 neurons were cultured in different astrocyte-conditioned medium, and the expression of synaptic proteins was detected. We constructed type 1 diabetes mellitus (T1DM) model to evaluate the astrocytic Sig-1R mechanism on synapse and cognitive function changes. In vitro, high glucose concentration downregulated Sig-1R and aggravated ERS in astrocytes, resulting in synapse deficits. PRE-084, a high-affinity and selective Sig-1R agonist, inhibited astrocytic ERS and complement cascades and restored synaptic damage, while the Sig-1R antagonist displayed the opposite results. Moreover, C3a receptor antagonist (C3aRA) could mimic the effect of PRE-084 and exerted neuroprotective effects. In vivo, PRE-084 substantially reduced ER-mitochondrion contact, activation of ERS, and C3/C3a secretion in mice with T1DM. Additionally, the synaptic loss and neurobehavioral dysfunction of mice with T1DM were less pronounced in both the PRE-084 and C3aRA treatment groups. These findings demonstrated that Sig-1R activation reduced the astrocytic ER-mitochondrion contact, ERS activation, and complement-mediated synaptic damage in T1DM. This study suggested the mechanisms and potential therapeutic approaches for treating DACD.
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Cheng X, Liu D, Ren X, Nie Y, Zhao Y, Chen R, Wang H. The β-catenin/CBP signaling axis participates in sepsis-induced inflammatory lung injury. Exp Biol Med (Maywood) 2022; 247:1548-1557. [PMID: 35665630 PMCID: PMC9554161 DOI: 10.1177/15353702221097316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Sepsis-induced inflammatory lung injury is a key factor causing failure of the lungs and other organs, as well as death, during sepsis. In the present study, a caecal ligation and puncture (CLP)-induced sepsis model was established to investigate the effect of β-catenin on sepsis-induced inflammatory lung injury and the corresponding underlying mechanisms. C57BL/6 mice were randomly divided into five groups, namely, the sham, CLP, β-catenin knockout (KO) + CLP, XAV-939 + CLP, and ICG-001 + CLP groups; the XAV-939 + CLP and ICG-001 + CLP groups were separately subjected to intraperitoneal injections of the β-catenin inhibitors XAV-939 and ICG-001 for 1 week preoperatively and 2 days postoperatively, respectively. Forty-eight hours after CLP, we measured β-catenin expression in lung tissues and evaluated mouse mortality, histopathological characteristics of hematoxylin and eosin (H&E)-stained lung tissues, serum cytokine (tumor necrosis factor [TNF]-α, interleukin [IL]-10, and IL-1β) levels, lung myeloperoxidase (MPO) activity, and the number of apoptotic cells in the lung tissues. Our results indicated that both the inhibition of β-catenin expression and blockage of β-catenin/CREB-binding protein (CBP) interactions by ICG-001 effectively decreased mouse mortality, alleviated pathological lung injury, and reduced the serum TNF-α, IL-10, and IL-1β levels, in addition to reducing the lung MPO activity and the number of apoptotic cells in lung tissues of the sepsis model mice. Therefore, it can be deduced that the β-catenin/CBP signaling axis participates in regulating sepsis-induced inflammatory lung injury.
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Affiliation(s)
- Xia Cheng
- Department of Pathology, Fourth Medical Center, General Hospital of Chinese People’s Liberation Army, Jinzhou Medical University, Beijing 100048, China
| | - Dandan Liu
- Department of Pathology, The Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Xinxin Ren
- Department of Clinical Laboratory, The Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - You Nie
- Department of Pathology, The Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Yibing Zhao
- Department of Oncology, The Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Ruyu Chen
- Department of Pathology, Fourth Medical Center, General Hospital of Chinese People’s Liberation Army, Jinzhou Medical University, Beijing 100048, China
| | - Hongwei Wang
- Department of Pathology, The Fourth Medical Center of PLA General Hospital, Beijing 100048, China,Hongwei Wang.
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Wang H, Xuan P, Tian H, Hao X, Yang J, Xu X, Qiao L. Adipose‑derived mesenchymal stem cell‑derived HCAR1 regulates immune response in the attenuation of sepsis. Mol Med Rep 2022; 26:279. [PMID: 35856408 PMCID: PMC9364135 DOI: 10.3892/mmr.2022.12795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 06/15/2022] [Indexed: 01/09/2023] Open
Abstract
Sepsis serves as a leading cause of admission to and death of patients in the intensive care unit (ICU) and is described as a systemic inflammatory response syndrome caused by abnormal host response to infection. Adipose‑derived mesenchymal stem cells (ADSCs) have exhibited reliable and promising clinical application potential in multiple disorders. However, the function and the mechanism of ADSCs in sepsis remain elusive. In the present study, the crucial inhibitory effect of ADSC‑derived hydroxy‑carboxylic acid receptor 1 (HCAR1) on sepsis was identified. Reverse transcription quantitative‑PCR determined that the mRNA expression of HCAR1 was reduced while the mRNA expression of Toll‑like receptor 4 (TLR4), major histocompatibility complex class II (MHC II), NOD‑like receptor family pyrin domain containing 3 (NLRP3), and the levels of interleukin‑1β (IL‑1β), tumor necrosis factor‑α (TNF‑α), interleukin‑10 (IL‑10), and interleukin‑18 (IL‑18) were enhanced in the peripheral blood of patients with sepsis. The expression of HCAR1 was negatively correlated with TLR4 (r=‑0.666), MHC II (r=‑0.587), and NLRP3 (r=‑0.621) expression and the expression of TLR4 was positively correlated with NLRP3 (r=0.641), IL‑1β (r=0.666), TNF‑α (r=0.606), and IL‑18 (r=0.624) levels in the samples. Receiver operating characteristic (ROC) curve analysis revealed that the area under the ROC curve (AUC) of HCAR1, TLR4, MHC II and NLRP3 mRNA expression was 0.830, 0.853, 0.735 and 0.945, respectively, in which NLRP3 exhibited the highest diagnostic value, and the AUC values of IL‑1β, IL‑18, TNF‑α, and IL‑10 were 0.751, 0.841, 0.924 and 0.729, respectively, in which TNF‑α exhibited the highest diagnostic value. A sepsis rat model was established by injecting lipopolysaccharide (LPS) and the rats were randomly divided into 5 groups, including a normal control group (NC group; n=6), a sepsis model group (LPS group; n=6), an ADSC transplantation group (L + M group; n=6), a combined HCAR1 receptor agonist group [L + HCAR1 inducer (Gi) + M group; n=6], and a combined HCAR1 receptor inhibitor group [L + HCAR1 blocker (Gk) + M group; n=6]. Hematoxylin and eosin staining determined that ADSCs attenuated the lung injury of septic rats and ADSC‑derived HCAR1 enhanced the effect of ADSCs. The expression of HCAR1, TLR4, MHC II, NLRP3, IL‑1β, IL‑18 and TNF‑α levels were suppressed by ADSCs and the effect was further induced by ADSC‑derived HCAR1. However, ADSC‑derived HCAR1 induced the levels of anti‑inflammatory factor IL‑10. The negative correlation of HCAR1 expression with TLR4, MHC II, and NLRP3 expression in the peripheral blood and lung tissues of the rats was then identified. It is thus concluded that ADSC‑derived HCAR1 regulates immune response in the attenuation of sepsis. ADSC‑derived HCAR1 may be a promising therapeutic strategy for sepsis.
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Affiliation(s)
- Hongyan Wang
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Pengfei Xuan
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Hongjun Tian
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Xinyu Hao
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Jingping Yang
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China
| | - Xiyuan Xu
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China,Correspondence to: Dr Xiyuan Xu or Dr Lixia Qiao, Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, 20 Shaoxian Road, Kundulun, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China, E-mail: , E-mail:
| | - Lixia Qiao
- Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China,Correspondence to: Dr Xiyuan Xu or Dr Lixia Qiao, Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Inner Mongolia Medical University, 20 Shaoxian Road, Kundulun, Baotou, Inner Mongolia Autonomous Region 014010, P.R. China, E-mail: , E-mail:
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Li ZF, Wang YC, Feng QR, Zhang YS, Zhuang YF, Xie ZX, Bai XJ. Inhibition of the C3a receptor attenuates sepsis-induced acute lung injury by suppressing pyroptosis of the pulmonary vascular endothelial cells. Free Radic Biol Med 2022; 184:208-217. [PMID: 35367342 DOI: 10.1016/j.freeradbiomed.2022.02.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/14/2022] [Accepted: 02/24/2022] [Indexed: 12/14/2022]
Abstract
Acute lung injury (ALI) is the leading cause of bacterial sepsis-related death because of disrupted pulmonary endothelial barrier, resulting in protein-rich pulmonary oedema, an influx of pro-inflammatory cells and refractory hypoxaemia. Several studies have reported that C3a levels are significantly higher in organs with sepsis and their peripheral organs and are closely associated with organ dysfunction and poor prognosis in sepsis. However, the role of the C3a complement in sepsis ALI remains unclear. Therefore, this study aimed to investigate the important role and mechanism of C3a in preventing the occurrence of pyroptosis (a pro-inflammatory form of cell death) to protect the lung endothelial cells (ECs) in sepsis-induced ALI. A septic mouse model was established with cecal ligation and puncture (CLP), which demonstrated that C3a mediated EC pyroptosis through its C3aR receptor. Furthermore, inhibition of the C3a-C3aR axis could block both NLRP3/caspase-1 and caspase-11 pathways, thus preventing pulmonary EC from pyroptosis. These results indicate that inhibition of the C3A-C3AR complement axis can inhibit pulmonary vascular EC pyroptosis, a potential target for the treatment of ALI.
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Affiliation(s)
- Zhan-Fei Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, 1095 Jiefang avenue, Wuhan, 430030, Hubei Province, People's Republic of China.
| | - Yu-Chang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, 1095 Jiefang avenue, Wuhan, 430030, Hubei Province, People's Republic of China.
| | - Quan-Rui Feng
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
| | - Yong-Sheng Zhang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
| | - Yang-Fan Zhuang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
| | - Zhen-Xing Xie
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
| | - Xiang-Jun Bai
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
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9
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Zhu J, Zhong F, Chen F, Yang Y, Liao Y, Cao L, Zhou Y, Bai Q. circRNA_0001679/miR-338-3p/DUSP16 axis aggravates acute lung injury. Open Med (Wars) 2022; 17:403-413. [PMID: 35291714 PMCID: PMC8886607 DOI: 10.1515/med-2022-0417] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/25/2021] [Accepted: 11/24/2021] [Indexed: 12/15/2022] Open
Abstract
Acute lung injury (ALI) is a respiratory disorder characterized by acute respiratory failure. circRNA mus musculus (mmu)-circ_0001679 was reported overexpressed in septic mouse models of ALI. Here the function of circ_0001679 in sepsis-induced ALI was investigated. In vitro models and animal models with ALI were, respectively, established in mouse lung epithelial (MLE)-12 cells and C57BL/6 mice. Pulmonary specimens were harvested for examination of the pathological changes. The pulmonary permeability was examined by wet-dry weight (W/D) ratio and lung permeability index. The levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-1β in the bronchoalveolar lavage fluid (BALF), the lung tissues, and the supernatant of MLE-12 cells were measured by enzyme linked immunosorbent assay . Apoptosis was determined by flow cytometry. Bioinformatics analysis and luciferase reporter assay were used to assess the interactions between genes. We found that circ_0001679 was overexpressed in lipopolysaccharide (LPS)-stimulated MLE-12 cells. circ_0001679 knockdown suppressed apoptosis and proinflammatory cytokine production induced by LPS. Moreover, circ_0001679 bound to mmu-miR-338-3p and miR-338-3p targeted dual-specificity phosphatases 16 (DUSP16). DUSP16 overexpression reversed the effect of circ_0001679 knockdown in LPS-stimulated MLE-12 cells. Furthermore, circ_0001679 knockdown attenuated lung pathological changes, reduced pulmonary microvascular permeability, and suppressed inflammation in ALI mice. Overall, circ_0001679 knockdown inhibits sepsis-induced ALI progression through the miR-338-3p/DUSP16 axis.
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Affiliation(s)
- Jiang Zhu
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Fukuan Zhong
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Futao Chen
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Yang Yang
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Yingying Liao
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Lifeng Cao
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Yong Zhou
- Department of Respiratory, The Second People’s Hospital of Lianyungang, Lianyungang 222023, Jiangsu, China
| | - Qiaohong Bai
- Department of Respiratory, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Zhongfu Road 1, Gulou District, Nanjing 210003, Jiangsu, China
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10
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Zhang W, Liu F, Zhang C. Exosomal MicroRNA-328 from Bone Marrow Mesenchymal Stem Cells (BMSCs) Alleviates Acute Lung Injury Through Mitogen-Activated Protein Kinase/Extracellular Signal-Regulated Kinase (MAPK/ERK) Pathway. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.2882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To elucidate the communication between exosomes (exo) derived from BMSCs and injured lung cells. BMSC-exo was isolated and characterized. Lung epithelial cells A549 were incubated with BMSC-exo, and treated by LPS to induce cell damage. CCK-8 assay was carried out to test cell proliferation,
flow cytometry was adopted to analyze cell apoptosis, and RT-qPCR as well as Western blot analysis were selected to assess expression of apoptosis- and anti-apoptosis related proteins. Functional experiment was performed to identify the role of microRNA (miRNA)-328 in lung injury. LPS treatment
significantly inhibited the viability of A549 cells, induced apoptosis of A549 cells by increasing Bax and casepase-3 levels and reducing Bcl-2 expression, whilst declined expression of miR-328 and suppressed the phosphorylation activation of the MAPK/ERK pathway. Meanwhile, the amount of
IL-6, IL-1β and TNF-α were elevated in injured cells, but, the presence of BMSC-exo eliminated the elevation of the contents. Importantly, treatment with BMSC-exo increased miR-328 expression, activated MAPK MAPK/ERK pathway, inhibited apoptosis, and enhanced cell
proliferation. However, the effect of BMSC-exo was attenuated when the cells were silenced for miR-328 expression. Collectively, BMSC-exo enriched miR-328 could relieve acute lung injury through MAPK/ERK pathway.
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Affiliation(s)
- Wei Zhang
- Department of Respiratory Medicine, The Third People’s Hospital of Hubei Province Affiliated to Jianghan University, Qiaokou District, Wuhan, Hubei, 430033, China
| | - Fang Liu
- Department of Respiratory Medicine, The Third People’s Hospital of Hubei Province Affiliated to Jianghan University, Qiaokou District, Wuhan, Hubei, 430033, China
| | - Caixia Zhang
- Department of Respiratory Medicine, The Third People’s Hospital of Hubei Province Affiliated to Jianghan University, Qiaokou District, Wuhan, Hubei, 430033, China
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11
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Ghafouri-Fard S, Khoshbakht T, Hussen BM, Taheri M, Arefian N. Regulatory Role of Non-Coding RNAs on Immune Responses During Sepsis. Front Immunol 2021; 12:798713. [PMID: 34956235 PMCID: PMC8695688 DOI: 10.3389/fimmu.2021.798713] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/19/2021] [Indexed: 12/22/2022] Open
Abstract
Sepsis is resulted from a systemic inflammatory response to bacterial, viral, or fungal agents. The induced inflammatory response by these microorganisms can lead to multiple organ system failure with devastating consequences. Recent studies have shown altered expressions of several non-coding RNAs such as long non-coding RNAs (lncRNAs), microRNAs (miRNAs) and circular RNAs (circRNAs) during sepsis. These transcripts have also been found to participate in the pathogenesis of multiple organ system failure through different mechanisms. NEAT1, MALAT1, THRIL, XIST, MIAT and TUG1 are among lncRNAs that participate in the pathoetiology of sepsis-related complications. miR-21, miR-155, miR-15a-5p, miR-494-3p, miR-218, miR-122, miR-208a-5p, miR-328 and miR-218 are examples of miRNAs participating in these complications. Finally, tens of circRNAs such as circC3P1, hsa_circRNA_104484, hsa_circRNA_104670 and circVMA21 and circ-PRKCI have been found to affect pathogenesis of sepsis. In the current review, we describe the role of these three classes of noncoding RNAs in the pathoetiology of sepsis-related complications.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tayyebeh Khoshbakht
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq.,Center of Research and Strategic Studies, Lebanese French University, Erbil, Iraq
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Normohammad Arefian
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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12
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Chen C, Zhang H, Ge M, Ye J, Li R, Wang D. LncRNA NEAT1 acts as a key regulator of cell apoptosis and inflammatory response by the miR-944/TRIM37 axis in acute lung injury. J Pharmacol Sci 2021; 145:202-212. [PMID: 33451755 DOI: 10.1016/j.jphs.2020.11.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 02/07/2023] Open
Abstract
Acute lung injury (ALI), a common complication of sepsis, is characterized by the impairment and injury of pulmonary function. The nuclear factor kappa-B (NF-κB) pathway is activated in ALI. Tripartite motif-containing 37 (TRIM37) can activate the NF-κB pathway and is closely associated with inflammation. The purpose of our study is to reveal the role of TRIM37 in ALI. The present study revealed that TRIM37 presented high levels in lung tissues of ALI mice, and knockdown of TRIM37 alleviated lipopolysaccharide (LPS)-induced lung injury, inflammatory response, and cell apoptosis in vivo. In addition, knockdown of TRIM37 inhibited the inflammatory response, and cell apoptosis of LPS-treated WI-38 cells. Mechanistically, miR-944 was identified to bind with and negatively regulate TRIM37. Furthermore, NEAT1 was indicated to act as a competitive endogenous RNA to promote TRIM37 expression by sequestering miR-944. Detailly, NEAT1 bound with miR-944, negatively modulated miR-944 expression, and positively modulated TRIM37 expression. The rescue assays suggested that overexpression of TRIM37 rescued the influence of NEAT1 knockdown on cell apoptosis and inflammatory response. Overall, NEAT1 facilitated cell apoptosis and inflammatory response of WI-38 cells by the miR-944/TRIM37 axis in sepsis-induced ALI, implying that NEAT1 may provide a novel insight for the treatment of sepsis-induced ALI.
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Affiliation(s)
- Cheng Chen
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu, China; Institute of Cardiothoracic Vascular Disease, Nanjing University, Nanjing 210008, Jiangsu, China
| | - Haitao Zhang
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Graduate School of Peking Union Medical College, Nanjing, 210008, China
| | - Min Ge
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu, China
| | - Jiaxin Ye
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu, China
| | - Ruisha Li
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu, China; Institute of Cardiothoracic Vascular Disease, Nanjing University, Nanjing 210008, Jiangsu, China
| | - Dongjin Wang
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu, China; Institute of Cardiothoracic Vascular Disease, Nanjing University, Nanjing 210008, Jiangsu, China.
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13
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Zhao Q, Xu N, Guo H, Li J. Identification of the Diagnostic Signature of Sepsis Based on Bioinformatic Analysis of Gene Expression and Machine Learning. Comb Chem High Throughput Screen 2020; 25:21-28. [PMID: 33280594 DOI: 10.2174/1386207323666201204130031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/26/2020] [Accepted: 11/08/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Sepsis is a life-threatening disease caused by the dysregulated host response to the infection and the major cause of death of patients in the intensive care unit (ICU). OBJECTIVE Early diagnosis of sepsis could significantly reduce in-hospital mortality. Though generated from infection, the development of sepsis follows its own psychological process and disciplines, alters with gender, health status and other factors. Hence, the analysis of mass data by bioinformatics tools and machine learning is a promising method for exploring early diagnosis. METHODS We collected miRNA and mRNA expression data of sepsis blood samples from Gene Expression Omnibus (GEO) and ArrayExpress databases, screened out differentially expressed genes (DEGs) by R software, predicted miRNA targets on TargetScanHuman and miRTarBase websites, conducted Gene Ontology (GO) term and KEGG pathway enrichment analysis based on overlapping DEGs. The STRING database and Cytoscape were used to build protein-protein interaction (PPI) network and predict hub genes. Then we constructed a Random Forest model by using the hub genes to assess sample type. RESULTS Bioinformatic analysis of GEO dataset revealed 46 overlapping DEGs in sepsis. The PPI network analysis identified five hub genes, SOCS3, KBTBD6, FBXL5, FEM1C and WSB1. Random Forest model based on these five hub genes was used to assess GSE95233 and GSE95233 datasets, and the area under the curve (AUC) of ROC was 0.900 and 0.7988, respectively, which confirmed the efficacy of this model. CONCLUSION The integrated analysis of gene expression in sepsis and the effective Random Forest model built in this study may provide promising diagnostic methods for sepsis.
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Affiliation(s)
- Qian Zhao
- Department of Emergency, Hebei General Hospital, Shijiazhuang, 050051,China
| | - Ning Xu
- Department of Emergency, Hebei General Hospital, Shijiazhuang, 050051,China
| | - Hui Guo
- Department of Emergency, Hebei General Hospital, Shijiazhuang, 050051,China
| | - Jianguo Li
- Department of Emergency, Hebei General Hospital, Shijiazhuang, 050051,China
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14
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Li M, Zhang Y, Wang J. Endoplasmic reticulum stress regulates cell injury in lipopolysaccharide-induced nerve cells. J Int Med Res 2020; 48:300060520949762. [PMID: 32910707 PMCID: PMC7488914 DOI: 10.1177/0300060520949762] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE Sepsis-associated encephalopathy (SAE) is a common complication of sepsis, and excessive endoplasmic reticulum (ER) stress is closely correlated with the cell injury caused by sepsis. This study aimed to analyze the possible role of ER stress in SAE cell models. METHODS PC12 and MES23.5 cells were treated with increasing concentrations of lipopolysaccharides (LPS). The Cell Counting Kit-8 assay was used to detect cell viability and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining was performed to assess cell apoptosis. In addition, the protein expression levels of ER stress markers [GRP78, CHOP, inositol-requiring enzyme 1 (IRE1), and PKR-like ER kinase (PERK)] and apoptosis-related proteins (Bax, Bcl-2, caspase-3, and cleaved caspase-3) were analyzed using western blotting. RESULTS LPS treatment activated ER stress markers in both the PC12 and MES23.5 cells. The overexpression of GRP78 significantly reduced cell viability and enhanced cell apoptosis in a time-dependent manner. An ER stress inhibitor, 4-PBA, significantly enhanced cell viability and inhibited the cell apoptosis induced by LPS. Therefore, an enhanced unfolded protein response (UPR) and UPR suppression may regulate cell apoptosis. CONCLUSIONS UPR was shown to be involved in regulating LPS-induced neuron injury. UPR could be a potential therapeutic target in SAE.
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Affiliation(s)
- Min Li
- Department of Neurology, People's Hospital of Gaotang County, Liaocheng, Shandong, China
| | - Ying Zhang
- Department of Neurology, People's Hospital of Gaotang County, Liaocheng, Shandong, China
| | - Jixing Wang
- Department of Neurology, Ningbo Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Ningbo, China
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15
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Zheng Q, Sun J, Li W, Li S, Zhang K. Cordycepin induces apoptosis in human tongue cancer cells in vitro and has antitumor effects in vivo. Arch Oral Biol 2020; 118:104846. [PMID: 32730909 DOI: 10.1016/j.archoralbio.2020.104846] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 01/05/2023]
Abstract
OBJECTIVE This study was designed to explore the ability of cordycepin to disrupt human tongue cancer cell growth, and to assess the mechanistic basis for such anti-cancer activity. METHODS CAL-27 human tongue cancer cells were treated with cordycepin prior to analysis via CCK-8 assay in order to assess their proliferation. In addition, cell cycle progression and apoptotic death in these cells were measured via flow cytometry, while the expression of apoptosis-associated genes and proteins (caspase-3, caspase-9, caspase-12, Bcl-2, and Bax) were measured via real-time PCR and western blotting. We further measured the intracellular production of reactive oxygen species (ROS) and used a murine xenograft model system to explore the in vivo anti-tumor activity of cordycepin. RESULTS Cordycepin was able to significantly suppress the proliferation of CAL-27 cells in a dose-dependent fashion (IC50 = 40 μg/mL at 24 h). Cordycepin further induced Bax, caspase-3, caspase-9, and caspase-12 upregulation at the mRNA and protein levels while simultaneously downregulating anti-apoptotic Bcl-2 expression. CAL-27 cells treated using cordycepin also exhibited elevated levels of intracellular ROS. Importantly, cordycepin was able to effectively suppress tongue cancer tumor growth in a murine xenograft model system and similar mRNA and protein levels were observed in vivo. CONCLUSIONS Cordycepin can inhibit human tongue cancer cell growth and can drive their apoptotic death via the mitochondrial pathway. In addition, cordycepin can suppress tongue cancer growth in vivo in treated mice.
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Affiliation(s)
- Qingwei Zheng
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, 233030, China
| | - Jing Sun
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, 233030, China
| | - Wenli Li
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, 233030, China
| | - Shuangnan Li
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, Bengbu, 233030, China
| | - Kai Zhang
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, China.
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16
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Jiang Q, Chen Z, Jiang H. Flufenamic acid alleviates sepsis-induced lung injury by up-regulating CBR1. Drug Dev Res 2020; 81:885-892. [PMID: 32542754 DOI: 10.1002/ddr.21706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/20/2020] [Accepted: 05/22/2020] [Indexed: 01/09/2023]
Abstract
Investigate the effect of flufenamic acid (FFA) on lung injury of sepsis rats. Rat sepsis model was established using cecal ligation and puncture (CLP). The pathomorphology of lung tissue was detected by Hematoxylin-eosin (H&E) staining. The expression levels of tumor necrosis factor alpha (TNF-α), interleukin-6 (IL-6), and high mobility group box-1 (HMGB-1) in serum and TNF-α, IL-6, malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD) in lung tissues. The viability of RLE-6TN cells was detected by CCK-8 assay. The expression of carbonyl reductase 1 (CBR1) in RLE-6TN cells was analyzed by Western blot analysis and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis. The inflammatory response was obviously enhanced in CLP-constructed sepsis rats and alleviated by FFA treatment. Sepsis induced the increase of W/D ratio, promoted the levels of TNF-α, IL-6, HMGBR1, and MDA and inhibited the levels of SOD and GSH. FFA could effectively alleviate the sepsis-induced lung injury. The viability of RLE-6TN cells induced by LPS was improved with the treatment of FFA. CBR1 expression in LPS-induced RLE-6TN cells was decreased and FFA could up-regulate the CBR1 expression. In addition, LPS-induced lung injury promoted the inflammatory response in lung tissues, increased the W/D ratio and levels of TNF-α, IL-6, HMGBR1, and MDA while inhibited the levels of SOD and GSH. FFA could effectively improve the LPS-induced lung injury while the effect of FFA on LPS-induced lung injury was alleviated by CBR1 interference. FFA may alleviate sepsis-induced lung injury by up-regulating CBR1.
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Affiliation(s)
- Qiannan Jiang
- Qingdao University, Qingdao, China.,Department of Pediatrics, Qingdao Women and Children's Hospital, Qingdao, China
| | - Zhenzhen Chen
- Qingdao University, Qingdao, China.,Department of Pediatrics, Qingdao Women and Children's Hospital, Qingdao, China
| | - Hong Jiang
- Division of Neonatology, The Affiliated Hospital of Qingdao University, Qingdao, China
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