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Chen J, Ye W. Molecular mechanisms underlying Tao-Hong-Si-Wu decoction treating hyperpigmentation based on network pharmacology, Mendelian randomization analysis, and experimental verification. Pharm Biol 2024; 62:296-313. [PMID: 38555860 DOI: 10.1080/13880209.2024.2330609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 03/02/2024] [Indexed: 04/02/2024]
Abstract
CONTEXT Hyperpigmentation, a common skin condition marked by excessive melanin production, currently has limited effective treatment options. OBJECTIVE This study explores the effects of Tao-Hong-Si-Wu decoction (THSWD) on hyperpigmentation and to elucidate the underlying mechanisms. MATERIALS AND METHODS We employed network pharmacology, Mendelian randomization, and molecular docking to identify THSWD's hub targets and mechanisms against hyperpigmentation. The Cell Counting Kit-8 (CCK-8) assay determined suitable THSWD treatment concentrations for PIG1 cells. These cells were exposed to graded concentrations of THSWD-containing serum (2.5%, 5%, 10%, 15%, 20%, 30%, 40%, and 50%) and treated with α-MSH (100 nM) to induce an in vitro hyperpigmentation model. Assessments included melanin content, tyrosinase activity, and Western blotting. RESULTS ALB, IL6, and MAPK3 emerged as primary targets, while quercetin, apigenin, and luteolin were the core active ingredients. The CCK-8 assay indicated that concentrations between 2.5% and 20% were suitable for PIG1 cells, with a 50% cytotoxicity concentration (CC50) of 32.14%. THSWD treatment significantly reduced melanin content and tyrosinase activity in α-MSH-induced PIG1 cells, along with downregulating MC1R and MITF expression. THSWD increased ALB and p-MAPK3/MAPK3 levels and decreased IL6 expression in the model cells. DISCUSSION AND CONCLUSION THSWD mitigates hyperpigmentation by targeting ALB, IL6, and MAPK3. This study paves the way for clinical applications of THSWD as a novel treatment for hyperpigmentation and offers new targeted therapeutic strategies.
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Affiliation(s)
- Jun Chen
- Department of Geriatrics, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Wenyi Ye
- Department of Traditional Chinese Internal Medicine, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
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Zhou X, Song H, He J, Han W, Li Q. Deciphering microglial activation and neuronal apoptosis post‑traumatic brain injury: The role of TYROBP in inflammation regulation networks. Mol Med Rep 2024; 29:104. [PMID: 38639190 DOI: 10.3892/mmr.2024.13228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/01/2024] [Indexed: 04/20/2024] Open
Abstract
Traumatic Brain Injury (TBI) represents a significant public health challenge. Recovery from brain injury necessitates the collaborative efforts of various resident neural cells, predominantly microglia. The present study analyzed rat and mouse RNA expression micro‑arrays, high‑throughput RNA sequencing and single‑cell sequencing data sourced from public databases. To construct an inflammation regulation network around TYRO protein tyrosine kinase‑binding protein (TYROBP), to evaluate the role of TYROBP in cell death after TBI. These findings indicate that following TBI, neurons predominantly communicate with one another through the CXC chemokine ligand (CXCL) and CC chemokine ligand (CCL) signaling pathways, employing a paracrine mechanism to activate microglia. These activated microglia intensify the pathological progression of brain injury by releasing factors such as tumor necrosis factor α (TNF‑α), vascular endothelial growth factor and transforming growth factor β via the NF‑κB pathway. Cells co‑culture experiments demonstrated that neurons, impaired by mechanical injury, interact with microglia through non‑contact mechanisms. Activated microglia secrete cytokines, including TNF‑α, CXCL‑8 and CCL2, which trigger an inflammatory response and facilitate neuronal apoptosis. TYROBP gene knockout in microglia was demonstrated to reduce this interaction and reduce neuronal cell apoptosis rates.
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Affiliation(s)
- Xudong Zhou
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Huiping Song
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Jingjing He
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Wei Han
- Emergency Department, Shenzhen University General Hospital, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
| | - Qin Li
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
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Marques TC, Monteiro HF, Melo DB, Coelho WM, Salman S, Marques LR, Leão KM, Machado VS, Menta P, Dubey D, Sun F, Lima FS. Effect of rumen-protected choline on dairy cow metabolism, immunity, lactation performance, and vaginal discharge microbiome. J Dairy Sci 2024; 107:2864-2882. [PMID: 38101729 DOI: 10.3168/jds.2023-23850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 11/12/2023] [Indexed: 12/17/2023]
Abstract
Rumen-protected choline (RPC) promotes benefits in milk production, immunity, and health in dairy cows by optimizing lipid metabolism during transition period management and early lactation. However, the RPC success in dairy cows depends on choline bioavailability, which is affected by the type of protection used in rumen-protected choline. Therefore, our objectives were to determine the effects of a novel RPC on dry matter intake (DMI), identify markers of metabolism and immunity, and evaluate lactation performance. Dry Holstein (n = 48) cows at 245 ± 3 d of gestation were blocked by parity and assigned to control or RPC treatment within each block. Cows enrolled in the RPC treatment received 15 g/d of CholiGEM (Kemin Industries, Cavriago RE, Italy) from 21 d prepartum and 30 g/d of CholiGEM from calving to 21 d postpartum. During the transition period, DMI was measured daily, and blood was sampled weekly for energy-related metabolites such as β-hydroxybutyrate (BHB), glucose, and nonesterified fatty acids (NEFA), as well as immune function markers such as haptoglobin (Hp) and lipopolysaccharide-binding protein (LPB). Vaginal discharge samples were collected at the calving and 7 d postpartum and stored in microcentrifuge tubes at -80°C until 16S rRNA sequencing. The main responses of body condition score, body weight, DMI, milk yield, milk components, and immune function markers were analyzed using the GLIMMIX procedure of SAS with the effects of treatment, time, parity, and relevant covariates added to the models. The relative abundance of microbiome α-diversity was evaluated by 3 indexes (Chao1, Shannon, and Simpson) and β-diversity by principal coordinate analysis and permutational multivariate ANOVA. We found no differences in DMI in the pre- and postpartum periods. Cows fed RPC increased the yields of energy- and 3.5% fat-corrected milk and fat yield in primiparous and multiparous cows, with an interaction between treatment and parity for these lactation variables. However, we found no differences in milk protein and lactose up to 150 DIM between treatments. Glucose, NEFA, and BHB had no differences between the treatments. However, RPC decreased BHB numerically (control = 1.07 ± 0.13 vs. RPC = 0.63 ± 0.13) in multiparous on the third week postpartum and tended to reduce the incidence of subclinical ketosis (12.7% vs. 4.2%). No effects for Hp and LPB were found in cows fed RPC. Chao1, Shannon, and Simpson indexes were lower at calving in the RPC treatment than in the Control. However, no differences were found 7 d later for Chao1, Shannon, and Simpson indexes. The vaginal discharge microbiome was altered in cows fed RPC at 7 d postpartum. Fusobacterium, a common pathogen associated with metritis, was reduced in cows fed RPC. Rumen-protected choline enhanced lactation performance and health and altered the vaginal discharge microbiome which is a potential proxy for uterine healthy in dairy cows. The current study's findings corroborate that RPC is a tool to support adaptation to lactation and shed light on opportunities for further research in reproductive health.
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Affiliation(s)
- T C Marques
- Department of Population Health and Reproduction, University of California-Davis, Davis, CA 95616; Department of Animal Science, Instituto Federal Goiano, Rio Verde, Goias 75901-970, Brazil
| | - H F Monteiro
- Department of Population Health and Reproduction, University of California-Davis, Davis, CA 95616
| | - D B Melo
- Department of Population Health and Reproduction, University of California-Davis, Davis, CA 95616
| | - W M Coelho
- Department of Population Health and Reproduction, University of California-Davis, Davis, CA 95616
| | - S Salman
- Department of Population Health and Reproduction, University of California-Davis, Davis, CA 95616
| | - L R Marques
- Department of Animal Science, Instituto Federal Goiano, Rio Verde, Goias 75901-970, Brazil
| | - K M Leão
- Department of Animal Science, Instituto Federal Goiano, Rio Verde, Goias 75901-970, Brazil
| | - V S Machado
- Department of Veterinary Sciences, College of Agricultural Sciences and Natural Resources, Texas Tech University, Lubbock, TX 79409
| | - P Menta
- Department of Veterinary Sciences, College of Agricultural Sciences and Natural Resources, Texas Tech University, Lubbock, TX 79409
| | - D Dubey
- Kemin Europa NV, Herentals 2640, Belgium
| | - F Sun
- Kemin Industries Inc., Des Moines, IA 50317
| | - F S Lima
- Department of Population Health and Reproduction, University of California-Davis, Davis, CA 95616.
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Sun J, Su S, Jiao S, Li G, Zhang Z, Lin W, Zhang S. A prospective analysis of the efficacy of phase II autologous skin grafting on deep second‑degree burns on the dorsum of the hand. Exp Ther Med 2024; 27:238. [PMID: 38628661 PMCID: PMC11019660 DOI: 10.3892/etm.2024.12526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 02/08/2024] [Indexed: 04/19/2024] Open
Abstract
The aim of the present study was to investigate the possibility of reducing the damage to the donor site while preserving the functional recovery of the dorsum of the hand following burn injury. An attempt was made to analyze the effect of a phased surgery approach on inflammatory indicators. A two-phase treatment was administered on a total of 64 patients with deep second-degree burns on the dorsum of the hand who were admitted to Guangzhou Red Cross Hospital between January 2020 and March 2023. During phase I treatment, the wounds were covered with xenogeneic (porcine) skin, followed by the application of autologous thin intermediate thickness skin grafts for wound repair in phase II treatment 1 week later. The surgical results, complications, patient satisfaction and inflammatory response indicators were then analyzed. The mean wound healing time of these patients was found to be 21.94 days without complications. The mean survival rate was 98.66%, and the overall satisfaction score of the patients was high. Finally, the white blood cell, C-reactive protein and IL-6 levels of these patients were continuously decreased 2 days preoperatively and 2 days postoperatively in phase I, and 2 days preoperatively and 2 days postoperatively in phase II. In combination, the effect of phased autologous skin grafting in patients with severe second-degree burns on the dorsum of the hand was ideal, as it significantly reduced inflammatory response and was beneficial to the functional recovery of the hand. Therefore, phased autologous skin grafting is worthy of wider application.
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Affiliation(s)
- Jing'en Sun
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong 510220, P.R. China
| | - Siman Su
- Department of Pharmacology, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong 510220, P.R. China
| | - Songsong Jiao
- Department of Orthopedics, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong 510220, P.R. China
| | - Gang Li
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong 510220, P.R. China
| | - Zhi Zhang
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong 510220, P.R. China
| | - Weihua Lin
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong 510220, P.R. China
| | - Shuyao Zhang
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong 510220, P.R. China
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Zhang D, Li Z, Gao Y, Sun H. Medium-chain chlorinated paraffins (MCCPs) induce renal cell aging and ferroptosis. Aging (Albany NY) 2024; 16:205756. [PMID: 38643467 DOI: 10.18632/aging.205756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 03/13/2024] [Indexed: 04/22/2024]
Abstract
PURPOSE Medium-chained chlorinated paraffins (MCCPs) are a class of chlorinated derivatives of straight-chain n-alkanes with complex compositions, which are widely used in industry. The chlorinated paraffins (CPs) are divided into short chain chlorinated paraffins (SCCPs), medium chain chlorinated paraffins (MCCPs) and long chain chlorinated paraffins (LCCPs). SCCPs have been banned due to their severe bioaccumulation and biotoxicity. Therefore, MCCPs are used as a substitute for SCCPs. However, the toxicological data of MCCPs are still very limited. For this, we systematically investigated the toxicological impact of MCCPs on a renal cell model in the current study. Our work provides basic research data for analyzing the toxicological effects of MCCPs, suggesting that MCCPs should be restricted in their usage. METHOD A series of biochemical experiments was performed, including Western blot, indirect immunofluorescence assay, and ELISA was performed to analyze the toxicological effects of MCCPs. RESULTS Two renal cell lines were used as a model for assessing the toxicological effects of MCCPs. Cell proliferation assays showed that MCCPs could inhibit the proliferation of kidney cells in a dose-dependent manner. Further studies showed that MCCPs induced ferroptosis in kidney cells by evaluating a series of ferroptosis marker molecules. Additionally, MCCPs induced inflammatory response and premature senescence in HEK293 and NRK-52E cells. Molecular mechanism experiments showed that ferroptosis induced by MCCPs emerged as a significant contributor to premature aging of kidney cells. CONCLUSION The current study provides basic research data to analyze the toxicological effects of MCCPs and their toxicity mechanisms. It also provides a theoretical basis for the assessment of the potential ecological risk of MCCPs, as well as basic experimental data for the rational and standardized use of MCCPs.
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Affiliation(s)
- Dong Zhang
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Zongying Li
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Yuan Gao
- The First Department of Nephrology, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Hailing Sun
- Department of Hematology, Cangzhou Central Hospital, Cangzhou, Hebei, China
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Payen SH, Adhikari K, Petereit J, Uppal T, Rossetto CC, Verma SC. SARS-CoV-2 Superinfection in CD14 + Monocytes with Latent Human Cytomegalovirus (HCMV) Promotes Inflammatory Cascade. Virus Res 2024:199375. [PMID: 38642618 DOI: 10.1016/j.virusres.2024.199375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/07/2024] [Accepted: 04/17/2024] [Indexed: 04/22/2024]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiologic agent of coronavirus disease 2019 (COVID-19), has posed significant challenges to global health. While much attention has been directed towards understanding the primary mechanisms of SARS-CoV-2 infection, emerging evidence suggests co-infections or superinfections with other viruses may contribute to increased morbidity and mortality, particularly in severe cases of COVID-19. Among viruses that have been reported in patients with SARS-CoV-2, seropositivity for Human cytomegalovirus (HCMV) is associated with increased COVID-19 risk and hospitalization. HCMV is a ubiquitous beta-herpesvirus with a seroprevalence of 60-90% worldwide and one of the leading causes of mortality in immunocompromised individuals. The primary sites of latency for HCMV include CD14+ monocytes and CD34+ hematopoietic cells. In this study, we sought to investigate SARS-CoV-2 infection of CD14+ monocytes latently infected with HCMV. We demonstrate that CD14+ cells are susceptible and permissive to SARS-CoV-2 infection and detect subgenomic transcripts indicative of replication. To further investigate the molecular changes triggered by SARS-CoV-2 infection in HCMV-latent CD14+ monocytes, we conducted RNA sequencing coupled with bioinformatic differential gene analysis. The results revealed significant differences in cytokine-cytokine receptor interactions and inflammatory pathways in cells superinfected with replication-competent SARS-CoV-2 compared to the heat-inactivated and mock controls. Notably, there was a significant upregulation in transcripts associated with pro-inflammatory response factors and a decrease in anti-inflammatory factors. Taken together, these findings provide a basis for the heightened inflammatory response, offering potential avenues for targeted therapeutic interventions among HCMV-infected severe cases of COVID-19. SUMMARY: COVID-19 patients infected with secondary viruses have been associated with a higher prevalence of severe symptoms. Individuals seropositive for human cytomegalovirus (HCMV) infection are at an increased risk for severe COVID-19 disease and hospitalization. HCMV reactivation has been reported in severe COVID-19 cases with respiratory failure and could be the result of co-infection with SARS-CoV-2 and HCMV. In a cell culture model of superinfection, HCMV has previously been shown to increase infection of SARS-CoV-2 of epithelial cells by upregulating the human angiotensin-converting enzyme-2 (ACE2) receptor. In this study, we utilize CD14+ monocytes, a major cell type that harbors latent HCMV, to investigate co-infection of SARS-CoV-2 and HCMV. This study is a first step toward understanding the mechanism that may facilitate increased COVID-19 disease severity in patients infected with SARS-CoV-2 and HCMV.
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Affiliation(s)
- Shannon Harger Payen
- University of Nevada, Reno School of Medicine, Department of Microbiology & Immunology/MS 320, Reno, NV 89557
| | - Kabita Adhikari
- University of Nevada, Reno School of Medicine, Department of Microbiology & Immunology/MS 320, Reno, NV 89557
| | - Juli Petereit
- University of Nevada, Nevada Bioinformatics Center (RRID:SCR_017802), Reno, NV 89557
| | - Timsy Uppal
- University of Nevada, Reno School of Medicine, Department of Microbiology & Immunology/MS 320, Reno, NV 89557
| | - Cyprian C Rossetto
- University of Nevada, Reno School of Medicine, Department of Microbiology & Immunology/MS 320, Reno, NV 89557
| | - Subhash C Verma
- University of Nevada, Reno School of Medicine, Department of Microbiology & Immunology/MS 320, Reno, NV 89557.
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Feng X, Yu JL, Sun YF, Du CY, Shen Y, Zhang L, Kong WZ, Han S, Cheng Y. Plasmodium yoelii surface-related antigen (PySRA) modulates the host pro- inflammatory responses via binding to CD68 on macrophage membrane. Infect Immun 2024:e0011324. [PMID: 38624215 DOI: 10.1128/iai.00113-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 04/17/2024] Open
Abstract
Malaria, one of the major infectious diseases in the world, is caused by the Plasmodium parasite. Plasmodium antigens could modulate the inflammatory response by binding to macrophage membrane receptors. As an export protein on the infected erythrocyte membrane, Plasmodium surface-related antigen (SRA) participates in the erythrocyte invasion and regulates the immune response of the host. This study found that the F2 segment of P. yoelii SRA activated downstream MAPK and NF-κB signaling pathways by binding to CD68 on the surface of the macrophage membrane and regulating the inflammatory response. The anti-PySRA-F2 antibody can protect mice against P. yoelii, and the pro-inflammatory responses such as IL-1β, TNF-α, and IL-6 after infection with P. yoelii are attenuated. These findings will be helpful for understanding the involvement of the pathogenic mechanism of malaria with the exported protein SRA.
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Affiliation(s)
- Xin Feng
- Department of Public Health and Preventive Medicine, Laboratory of Pathogen Infection and Immunity, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Jia-Li Yu
- Department of Public Health and Preventive Medicine, Laboratory of Pathogen Infection and Immunity, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yi-Fan Sun
- Department of Public Health and Preventive Medicine, Laboratory of Pathogen Infection and Immunity, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Department of Laboratory Medicine, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Chen-Yan Du
- Department of Public Health and Preventive Medicine, Laboratory of Pathogen Infection and Immunity, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yao Shen
- Department of Food Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Lu Zhang
- Department of General Practice, Rongxiang Street Community Health Service Center, Binhu District, Wuxi, China
| | - Wei-Zhong Kong
- Department of Public Health and Preventive Medicine, Laboratory of Pathogen Infection and Immunity, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Su Han
- Department of Public Health and Preventive Medicine, Laboratory of Pathogen Infection and Immunity, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yang Cheng
- Department of Public Health and Preventive Medicine, Laboratory of Pathogen Infection and Immunity, Wuxi School of Medicine, Jiangnan University, Wuxi, China
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Saaiman Engelbrecht EL, Naidoo V, Botha CJ. Naja nigricincta nigricincta venom, a murine model. Evaluation of skeletal and cardio-myonecrosis, kidney injury and inflammatory response along with neutralisation efficacy by the SAIMR/SAVP - and EchiTAb-Plus-ICP polyvalent antivenoms. Toxicon 2024:107719. [PMID: 38631492 DOI: 10.1016/j.toxicon.2024.107719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/06/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
African spitting cobra, Naja nigricincta nigricincta (Zebra snake), envenomation is an important cause of snakebite morbidity and mortality in Namibia. The snake is endemic to central and northern Namibia as well as southern Angola. The venom is mainly cytotoxic, resulting in aggressive dermo-necrosis and often accompanied by severe systemic complications. No specific antivenom exists. Rhabdomyolysis, systemic inflammatory response, haemostatic abnormalities, infective necrotising fasciitis as well as acute kidney failure have been documented. Based on murine models, this study assessed SAVP /SAIMR - and EchiTAb-Plus-ICP polyvalent antivenom neutralisation as well as subdermal necrosis. Additional muscle, cardiac, kidney and lung histology, creatine kinase measurements and post-mortems were performed. An intravenous median lethal dose (LD50) of Naja nigricincta nigricincta venom was determined at 18.4 (CI: 16.3; 20.52) μg and a subdermal lethal dose at 15.3(CI: 12.96; 17.74)μg. The SAIMR/SAVP polyvalent antivenom median effective dose (ED50) was 1.2ml antivenom/1mg venom equating to a potency (WHO) of 1 ml antivenom neutralising 0.63mg venom and approximately 240 ml (24 vials) needed for initial treatment. The ED50 of the EchiTAb-Plus-ICP was 1 ml antivenom/1 mg venom and a potency of 65 mg venom/ ml antivenom (3.3 x LD50), estimating 230 ml (23 vials) for treatment. Histology and serology (creatine kinase) evidenced venom induced skeletal myotoxicity, which was not prevented by the antivenoms tested. Cardiac myonecrosis, an inflammatory response, direct venom kidney tubular necrosis and cardio-pulmonary failure were documented.
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Affiliation(s)
| | - Vinny Naidoo
- Faculty of Veterinary Science University of Pretoria
| | - Christo J Botha
- Head of Department, Pharmacology and Toxinology Faculty of Veterinary Science University of Pretoria
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Zhou Z, Bi Y, Zhi C, Chen S, Chen D, Wei Z, Jiang X. Astroglial activation is exacerbated in a Down syndrome mouse model. Neuroscience 2024:S0306-4522(24)00156-8. [PMID: 38615829 DOI: 10.1016/j.neuroscience.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
Down syndrome (DS), also known as trisomy 21, is one of the most common chromosomal disorders associated with intellectual disability. Mouse models are valuable for mechanistic and therapeutic intervention studies. The purpose of this study was to investigate astroglial anomalies in Dp16, a widely used DS mouse model. Brain sections were prepared from one-month-old Dp16 mice and their littermates, immunostained with an anti-GFAP or anti-S100B antibody, and imaged to reconstruct astroglial morphology in three dimensions. No significant difference in the number of astrocytes was found in either the hippocampal CA1 region or cortex between Dp16 and WT mice. However, the average astroglial volume in Dp16 was significantly (P<0.05) greater than that in WT, suggesting the astroglial activation. Reanalysis of the single-nucleus RNA sequencing data indicated that the genes differentially expressed between WT and Dp16 astrocytes were associated with synapse organization and neuronal projection. In contrast, in vitro cultured neonatal astrocytes did not exhibit significant morphological changes. The expression of Gfap in in vitro cultured Dp16 astrocytes was not increased as it was in in vivo hippocampal tissue. However, after treatment with lipopolysaccharides, the inflammatory response gene IFNβ increased significantly more in Dp16 astrocytes than in WT astrocytes. Overall, our results showed that the increase in astrogliogenesis in DS was not apparent in the early life of Dp16 mice, while astrocyte activation, which may be partly caused by increased responses to inflammatory stimulation, was significant. The inflammatory response of astrocytes might be a potential therapeutic target for DS intellectual disability.
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Affiliation(s)
- Zuolin Zhou
- Birth Defects and Rare Diseases Research Center, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, Zhejiang, China
| | - Yanhua Bi
- Birth Defects and Rare Diseases Research Center, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, Zhejiang, China
| | - Chunchun Zhi
- Birth Defects and Rare Diseases Research Center, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, Zhejiang, China
| | - Siqi Chen
- Birth Defects and Rare Diseases Research Center, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, Zhejiang, China
| | - Die Chen
- Birth Defects and Rare Diseases Research Center, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, Zhejiang, China
| | - Zhen Wei
- Laboratory Animal Center, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Xiaoling Jiang
- Birth Defects and Rare Diseases Research Center, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, Zhejiang, China.
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Feng X, Zhang R, Miao X, Li X, Cui J, Xu H, Fang X, Zhou C, Ye L, Zhou L. Role of formyl peptide receptor 2 in steatosis of L02 cells exposed to Mono-(2-ethylhexyl) phthalate. Environ Toxicol 2024. [PMID: 38598732 DOI: 10.1002/tox.24256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 02/01/2024] [Accepted: 03/14/2024] [Indexed: 04/12/2024]
Abstract
Mono-(2-ethylhexyl) phthalate (MEHP) can accumulate in the liver and then lead to hepatic steatosis, while the underlying mechanism remains unclear. Inflammation plays an important role in the disorder of hepatic lipid metabolism. This study aims to clarify the role of the inflammatory response mediated by formyl peptide receptor 2 (FPR2) in steatosis of L02 cells exposed to MEHP. L02 cells were exposed to MEHP of different concentrations and different time. A steatosis model of L02 cells was induced with oleic acid and the cells were exposed to MEHP simultaneously. In addition, L02 cells were incubated with FPR2 antagonist and then exposed to MEHP. Lipid accumulation was determined by oil red O staining and extraction assay. The indicators related to lipid metabolism and inflammatory response were measured with appropriate kits. The relative expression levels of FPR2 and its ligand were determined by Western blot, and the interaction of them was detected by co-immunoprecipitation. As a result, MEHP exposure could promote the occurrence and progression of steatosis and the secretion of chemokines and inflammatory factors in L02 cells. MEHP could also affect the expression and activation of FPR2 and the secretion of FPR2 ligands. In addition, the promotion effect of MEHP on the secretion of total cholesterol and interleukin 1β in L02 cells could be significantly inhibited by the FPR2 antagonist. We concluded that FPR2 might affect the promotion effect of MEHP on steatosis of L02 cells by mediating inflammatory response.
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Affiliation(s)
- Xuemin Feng
- Department of Neurology, the First Hospital of Jilin University, Changchun, China
| | - Ruxuan Zhang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xiaohan Miao
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xu Li
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Jianwei Cui
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Hang Xu
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xiaoqi Fang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Chunkui Zhou
- Department of Neurology, the First Hospital of Jilin University, Changchun, China
| | - Lin Ye
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Liting Zhou
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
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11
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Ma M, Jiang W, Zhou R. DAMPs and DAMP-sensing receptors in inflammation and diseases. Immunity 2024; 57:752-771. [PMID: 38599169 DOI: 10.1016/j.immuni.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/17/2024] [Accepted: 03/01/2024] [Indexed: 04/12/2024]
Abstract
Damage-associated molecular patterns (DAMPs) are endogenous danger molecules produced in cellular damage or stress, and they can activate the innate immune system. DAMPs contain multiple types of molecules, including nucleic acids, proteins, ions, glycans, and metabolites. Although these endogenous molecules do not trigger immune response under steady-state condition, they may undergo changes in distribution, physical or chemical property, or concentration upon cellular damage or stress, and then they become DAMPs that can be sensed by innate immune receptors to induce inflammatory response. Thus, DAMPs play an important role in inflammation and inflammatory diseases. In this review, we summarize the conversion of homeostatic molecules into DAMPs; the diverse nature and classification, cellular origin, and sensing of DAMPs; and their role in inflammation and related diseases. Furthermore, we discuss the clinical strategies to treat DAMP-associated diseases via targeting DAMP-sensing receptors.
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Affiliation(s)
- Ming Ma
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - Wei Jiang
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - Rongbin Zhou
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, China; Department of Geriatrics, Gerontology Institute of Anhui Province, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China.
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12
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Meunier É, Aubin Vega M, Adam D, Privé A, Mohammad Nezhady MA, Lahaie I, Quiniou C, Chemtob S, Brochiero E. Evaluation of interleukin-1 and interleukin-6 receptor antagonists in a murine model of acute lung injury. Exp Physiol 2024. [PMID: 38594909 DOI: 10.1113/ep091682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 03/12/2024] [Indexed: 04/11/2024]
Abstract
The acute exudative phase of acute respiratory distress syndrome (ARDS), a severe form of respiratory failure, is characterized by alveolar damage, pulmonary oedema, and an exacerbated inflammatory response. There is no effective treatment for this condition, but based on the major contribution of inflammation, anti-inflammatory strategies have been evaluated in animal models and clinical trials, with conflicting results. In COVID-19 ARDS patients, interleukin (IL)-1 and IL-6 receptor antagonists (IL-1Ra and IL-6Ra, kineret and tocilizumab, respectively) have shown some efficacy. Moreover, we have previously developed novel peptides modulating IL-1R and IL-6R activity (rytvela and HSJ633, respectively) while preserving immune vigilance and cytoprotective pathways. We aimed to assess the efficacy of these novel IL-1Ra and IL-6Ra, compared to commercially available drugs (kineret, tocilizumab) during the exudative phase (day 7) of bleomycin-induced acute lung injury (ALI) in mice. Our results first showed that none of the IL-1Ra and IL-6Ra compounds attenuated bleomycin-induced weight loss and venousP C O 2 ${P_{{\mathrm{C}}{{\mathrm{O}}_{\mathrm{2}}}}}$ increase. Histological analyses and lung water content measurements also showed that these drugs did not improve lung injury scores or pulmonary oedema, after the bleomycin challenge. Finally, IL-1Ra and IL-6Ra failed to alleviate the inflammatory status of the mice, as indicated by cytokine levels and alveolar neutrophil infiltration. Altogether, these results indicate a lack of beneficial effects of IL-1R and IL-6R antagonists on key parameters of ALI in the bleomycin mouse model.
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Affiliation(s)
- Émilie Meunier
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Département de Médecine, Université de Montréal, Montréal, Québec, Canada
| | - Mélissa Aubin Vega
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Département de Médecine, Université de Montréal, Montréal, Québec, Canada
| | - Damien Adam
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Département de Médecine, Université de Montréal, Montréal, Québec, Canada
| | - Anik Privé
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | | | - Isabelle Lahaie
- Centre de recherche du Centre hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
| | - Christiane Quiniou
- Centre de recherche du Centre hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
| | - Sylvain Chemtob
- Centre de recherche du Centre hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
- Département de pédiatrie, Université de Montréal, Montréal, Québec, Canada
| | - Emmanuelle Brochiero
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Département de Médecine, Université de Montréal, Montréal, Québec, Canada
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Li S, Sun J, Zhang BW, Yang L, Wan YC, Chen BB, Xu N, Xu QR, Fan J, Shang JN, Li R, Yu CG, Xi Y, Chen S. ATG5 attenuates inflammatory signaling in mouse embryonic stem cells to control differentiation. Dev Cell 2024; 59:882-897.e6. [PMID: 38387460 DOI: 10.1016/j.devcel.2024.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 12/13/2023] [Accepted: 01/26/2024] [Indexed: 02/24/2024]
Abstract
Attenuated inflammatory response is a property of embryonic stem cells (ESCs). However, the underlying mechanisms are unclear. Moreover, whether the attenuated inflammatory status is involved in ESC differentiation is also unknown. Here, we found that autophagy-related protein ATG5 is essential for both attenuated inflammatory response and differentiation of mouse ESCs and that attenuation of inflammatory signaling is required for mouse ESC differentiation. Mechanistically, ATG5 recruits FBXW7 to promote ubiquitination and proteasome-mediated degradation of β-TrCP1, resulting in the inhibition of nuclear factor κB (NF-κB) signaling and inflammatory response. Moreover, differentiation defects observed in ATG5-depleted mouse ESCs are due to β-TrCP1 accumulation and hyperactivation of NF-κB signaling, as loss of β-TrCP1 and inhibition of NF-κB signaling rescued the differentiation defects. Therefore, this study reveals a previously uncharacterized mechanism maintaining the attenuated inflammatory response in mouse ESCs and further expands the understanding of the biological roles of ATG5.
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Affiliation(s)
- Sheng Li
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China; School of Forensic Sciences and Laboratory Medicine, Jining Medical University, Jining 272067, Shandong, China
| | - Jin Sun
- School of Laboratory Animal & Shandong Laboratory Animal Center, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China
| | - Bo-Wen Zhang
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China
| | - Lu Yang
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China
| | - Ying-Cui Wan
- School of Laboratory Animal & Shandong Laboratory Animal Center, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, China
| | - Bei-Bei Chen
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China
| | - Nan Xu
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China
| | - Qian-Ru Xu
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China
| | - Juan Fan
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China
| | - Jia-Ni Shang
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China
| | - Rui Li
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China
| | - Chen-Ge Yu
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China
| | - Yan Xi
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China; Zhongzhou Laboratory, Kaifeng 475004, Henan, China.
| | - Su Chen
- Laboratory of Molecular and Cellular Biology, Institute of Metabolism and Health, School of Basic Medical Sciences, Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng 475004, Henan, China; Zhongzhou Laboratory, Kaifeng 475004, Henan, China.
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14
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He X, Gao X, Xie W. Research Progress in Skin Aging and Immunity. Int J Mol Sci 2024; 25:4101. [PMID: 38612909 PMCID: PMC11012511 DOI: 10.3390/ijms25074101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/02/2024] [Accepted: 04/06/2024] [Indexed: 04/14/2024] Open
Abstract
Skin aging is a complex process involving structural and functional changes and is characterized by a decrease in collagen content, reduced skin thickness, dryness, and the formation of wrinkles. This process is underpinned by multiple mechanisms including the free radical theory, inflammation theory, photoaging theory, and metabolic theory. The skin immune system, an indispensable part of the body's defense mechanism, comprises macrophages, lymphocytes, dendritic cells, and mast cells. These cells play a pivotal role in maintaining skin homeostasis and responding to injury or infection. As age advances, along with various internal and external environmental stimuli, skin immune cells may undergo senescence or accelerated aging, characterized by reduced cell division capability, increased mortality, changes in gene expression patterns and signaling pathways, and altered immune cell functions. These changes collectively impact the overall function of the immune system. This review summarizes the relationship between skin aging and immunity and explores the characteristics of skin aging, the composition and function of the skin immune system, the aging of immune cells, and the effects of these cells on immune function and skin aging. Immune dysfunction plays a significant role in skin aging, suggesting that immunoregulation may become one of the important strategies for the prevention and treatment of skin aging.
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Affiliation(s)
- Xin He
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (X.H.); (X.G.)
- Open FIESTA Center, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health, Tsinghua University, Shenzhen 518055, China
| | - Xinyu Gao
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (X.H.); (X.G.)
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health, Tsinghua University, Shenzhen 518055, China
| | - Weidong Xie
- State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (X.H.); (X.G.)
- Open FIESTA Center, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Shenzhen Key Laboratory of Health Science and Technology, Institute of Biopharmaceutical and Health, Tsinghua University, Shenzhen 518055, China
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15
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Zhou N, Sun Y, Ren X, Wang Y, Gao X, Li L, Ma Y, Hao Y, Wang Y. Intradermal injection of Cutibacterium acnes and staphylococcus: A pustular acne-like murine model. J Cosmet Dermatol 2024. [PMID: 38581133 DOI: 10.1111/jocd.16279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/04/2024] [Accepted: 03/05/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND Skin 16S microbiome diversity analysis indicates that the Staphylococcus genus, especially Staphylococcus aureus (S. aureus), plays a crucial role in the inflammatory lesions of acne. However, current animal models for acne do not fully replicate human diseases, especially pustular acne, which limits the development of anti-acne medications. AIMS The aim is to develop a mouse model for acne, establishing an animal model that more closely mimics the clinical presentation of pustular acne. This will provide a new research platform for screening anti-acne drugs and evaluating the efficacy of clinical anti-acne experimental treatments. METHODS Building upon the existing combination of acne-associated Cutibacterium acnes (C. acnes) with artificial sebum, we will inject a mixture of S. aureus and C. acnes locally into the dermis in a 3:7 ratio. RESULTS We found that the acne animal model with mixed bacterial infection better replicates the dynamic evolution process of human pustular acne. Compared to the infection with C. acnes alone, mixed bacterial infection resulted in pustules with a distinct yellowish appearance, resembling pustular acne morphology. The lesions exhibited redness, vascular dilation, and noticeable congestion, along with evident infiltration of inflammatory cells. This induced higher levels of inflammation, as indicated by a significant increase in the secretion of inflammatory factors such as IL-1β and TNF-α. CONCLUSION This model can reflect the clinical symptoms and development of human pustular acne, overcoming the limitations of animal models commonly used in basic research to study this situation. It provides support for foundational research and the development of new acne medications.
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Affiliation(s)
- Na Zhou
- Department of Immunology and Microbiology, School of Life Science, Beijing University of Chinese Medicine, Beijing, China
| | - Yanan Sun
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xing Ren
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yunong Wang
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China
| | - Xinyu Gao
- Shenyang Pharmaceutical University, Shenyang, China
| | - Lishuang Li
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuman Ma
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yu Hao
- Department of Immunology and Microbiology, School of Life Science, Beijing University of Chinese Medicine, Beijing, China
| | - Yi Wang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
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16
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Zhu X, Hua E, Tu Q, Liu M, Xu L, Feng J. Foxq1 Promotes Alveolar Epithelial Cell Death through Tle1-mediated Inhibition of the NFκB Signaling Pathway. Am J Respir Cell Mol Biol 2024. [PMID: 38574238 DOI: 10.1165/rcmb.2023-0317oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 04/03/2024] [Indexed: 04/06/2024] Open
Abstract
Acute lung injury is a common respiratory disease characterized by diffuse alveolar injury and interstitial edema, as well as a hyperinflammatory response, lung cell damage and oxidative stress. Foxq1, a member of the FOX family of transcription factors, is expressed in various tissues, such as the lungs, liver, and kidneys, and contributes to various biological processes, such as stress, metabolism, cell cycle arrest, and aging-related apoptosis. However, the role of Foxq1 in acute lung injury is unknown. We constructed ex vivo and in vivo acute lung injury models by lipopolysaccharide tracheal perfusion of ICR mice and conditioned medium stimulation of injured MLE-12 cells. Foxq1 expression was increased, and its localization was altered in our acute lung injury model. In normal or injured MLE-12 cells, knockdown of Foxq1 promoted cell survival, and overexpression had the opposite effect. This regulatory effect was likely mediated by Tle1 and the NFκB/Bcl2/Bax signaling pathway. These data suggest a potential link between Foxq1 and acute lung injury, indicating that Foxq1 can be used as a biomarker for the diagnosis of acute lung injury. Targeted inhibition of Foxq1 expression could promote alveolar epithelial cell survival and may provide a strategy for mitigating acute lung injury.
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Affiliation(s)
- Xi Zhu
- Nantong University, 66479, Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Ershi Hua
- Nantong University, 66479, Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Qifeng Tu
- Nantong University, 66479, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong, China
| | - Mei Liu
- Nantong University, 66479, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong, China
| | - Liqin Xu
- Affiliated Hospital of Nantong University, 74567, Department of Respiratory and Critical Care Medicine, Nantong, China
| | - Jian Feng
- Affiliated Hospital of Nantong University, 74567, Nantong, China;
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17
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Wang X, Wang Y, Yuan Y, Wang L, Zhang D. Isoflurane pretreatment protects against myocardial ischemia/reperfusion injury via mediating lncRNA CASC15/miR-542-3p axis. Toxicol Mech Methods 2024:1-9. [PMID: 38572673 DOI: 10.1080/15376516.2024.2327057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 03/01/2024] [Indexed: 04/05/2024]
Abstract
The protective effect of isoflurane on cardiomyocyte ischemia/reperfusion injury (I/RI) was explored in hypoxia and reoxygenation (H/R) induced cardiomyocyte injury model. In terms of mechanism, the participation of long non-coding RNA CASC15/microR-542-3p axis was further discussed. H9c2 cells received H/R treatment to mimic myocardial I/RI. RT-qPCR was performed to quantify mRNA levels. Cell viability and apoptosis were evaluated after isoflurane pretreatment and cell transfection. ELISA was performed to measure the concentrations of inflammatory/oxidative stress-related cytokines (TNF-α, IL-6, MDA, SOD). The target relationship between CASC12 and miR-542-3p was determined via dual-luciferase reporter assay. Isoflurane pretreatment alleviated H/R-induced cell viability suppression and cell apoptosis promotion, which was accompanied by CASC15 downregulation. CASC15 overexpression abolished the influence of isoflurane on cardiomyocytes' viability and apoptosis. H/R-induced excessive release of TNF-α and IL-6 was hold down by isoflurane, which was re-activated after CASC15 overexpression. The concentration changes of both MDA and SOD by isoflurane were reversed by CASC15 overexpression. CASC15 functioned as miR-542-3p sponger, and miR-542-3p overexpression attenuated the effect of isoflurane and CASC15 on H/R-induced cardiac I/RI. Isoflurane pretreatment was beneficial for the alleviation of cardiac I/RI by inhibiting oxidative stress and myocardial inflammatory response. CASC15/miR-542-3p axis was required for isoflurane to exhibit its protective activity against cardiac I/RI.
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Affiliation(s)
- Xiaoyi Wang
- School of Clinical Medicine, Shandong Second Medical University, Weifang, China
| | - Yueping Wang
- Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
| | - Yawei Yuan
- Department of Anesthesiology, Ruijin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Long Wang
- Department of Pain Medicine, the First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Dawei Zhang
- Department of Emergency, The Affiliated Hospital of Qingdao University (Pingdu), Qingdao, China
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18
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Huang J, Li J, Peng Y, Cui T, Guo J, Duan S, Zhou K, Huang S, Chen J, Yi Q, Qiu M, Chen T, Wu X, Ma C, Zhang Z, Zheng Y, Tang X, Pang Y, Zhang L, Zhong C, Gao Y. The lack of PPARα exacerbated the progression of non-alcoholic steatohepatitis in mice with spleen deficiency syndrome by triggering an inflammatory response. Front Immunol 2024; 15:1381340. [PMID: 38633246 PMCID: PMC11021588 DOI: 10.3389/fimmu.2024.1381340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 03/14/2024] [Indexed: 04/19/2024] Open
Abstract
Background In addition to abnormal liver inflammation, the main symptoms of non-alcoholic steatohepatitis (NASH) are often accompanied by gastrointestinal digestive dysfunction, consistent with the concept of spleen deficiency (SD) in traditional Chinese medicine. As an important metabolic sensor, whether peroxisome proliferator-activated receptor alpha (PPARα) participates in regulating the occurrence and development of NASH with SD (NASH-SD) remains to be explored. Methods Clinical liver samples were collected for RNA-seq analysis. C57BL/6J mice induced by folium sennae (SE) were used as an SD model. qPCR analysis was conducted to evaluate the inflammation and metabolic levels of mice. PPARα knockout mice (PPARαko) were subjected to SE and methionine-choline-deficient (MCD) diet to establish the NASH-SD model. The phenotype of NASH and the inflammatory indicators were measured using histopathologic analysis and qPCR as well. Results The abnormal expression of PPARα signaling, coupled with metabolism and inflammation, was found in the results of RNA-seq analysis from clinical samples. SD mice showed a more severe inflammatory response in the liver evidenced by the increases in macrophage biomarkers, inflammatory factors, and fibrotic indicators in the liver. qPCR results also showed differences in PPARα between SD mice and control mice. In PPARαko mice, further evidence was found that the lack of PPARα exacerbated the inflammatory response phenotype as well as the lipid metabolism disorder in NASH-SD mice. Conclusion The abnormal NR signaling accelerated the vicious cycle between lipotoxicity and inflammatory response in NAFLD with SD. Our results provide new evidence for nuclear receptors as potential therapeutic targets for NAFLD with spleen deficiency.
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Affiliation(s)
- Jiawen Huang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiayu Li
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuan Peng
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Tianqi Cui
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingyi Guo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Siwei Duan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kaili Zhou
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shangyi Huang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiabing Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qincheng Yi
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Min Qiu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Tingting Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoqin Wu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chenlu Ma
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ziyi Zhang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yi Zheng
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xi Tang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yanqing Pang
- Department of Phase I Clinical Research Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
| | - Lei Zhang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Chong Zhong
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yong Gao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
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Li Y, Ma M, Wang X, Li J, Fang Z, Li J, Yang B, Lu Y, Xu X, Li Y. Celecoxib alleviates the DSS-induced ulcerative colitis in mice by enhancing intestinal barrier function, inhibiting ferroptosis and suppressing apoptosis. Immunopharmacol Immunotoxicol 2024; 46:240-254. [PMID: 38156770 DOI: 10.1080/08923973.2023.2300508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 12/17/2023] [Indexed: 01/03/2024]
Abstract
INTRODUCTION Ulcerative colitis (UC) is an inflammatory intestine disease characterized by dysfunction of the intestinal mucosal barrier, ferroptosis, and apoptosis. Previous researches suggest that celecoxib, a nonsteroidal anti-inflammatory drug, holds promise in alleviating inflammation in UC. Therefore, this study aims to investigate the effects and mechanisms of celecoxib in UC. METHODS To identify ferroptosis-related drugs and genes associated with UC, we utilized the Gene Expression Omnibus (GEO), FerrDb databases, and DGIdb database. Subsequently, we established a 2.5% DSS (Dextran sulfate sodium)-induced colitis model in mice and treated them with 10 mg/kg of celecoxib to validate the bioinformatics results. We evaluated histological pathologies, inflammatory response, intestinal barrier function, ferroptosis markers, and apoptosis regulators. RESULTS Celecoxib treatment significantly ameliorated DSS-induced UC in mice, as evidenced by the body weight change curve, colon length change curve, disease activity index (DAI) score, and histological index score. Celecoxib treatment reduced the level of pro-inflammatory factors and promoted the expressions of intestinal tight junction proteins such as Claudin-1 and Occludin, thereby restoring the integrity of the intestinal mucosal barrier. Furthermore, celecoxib treatment reversed the ferroptosis characteristics in DSS-induced mice by increasing glutathione (GSH), decreasing malondialdehyde (MDA), and increasing the expression of GPX-4 and xCT. Additionally, apoptosis was induced in mice with UC, as evidenced by increased Caspase3, BAD, P53, BAX, Caspase9 and Aifm1 production, and decreased expression of BCL-XL and BCL2. Celecoxib treatment significantly reversed the apoptotic changes in DSS-induced mice. CONCLUSION Our findings suggest that celecoxib effectively treats DSS-induced UC in mice by inhibiting ferroptosis and apoptosis.
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Affiliation(s)
- Yaxian Li
- General Surgery Department, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Mengdi Ma
- General Surgery Department, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xiaodong Wang
- The Robert Bosch Center for Tumor Diseases (RBCT), Stuttgart, Germany
| | - Jing Li
- General Surgery Department, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ziqing Fang
- General Surgery Department, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jianhui Li
- General Surgery Department, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Bo Yang
- General Surgery Department, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yida Lu
- General Surgery Department, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xin Xu
- General Surgery Department, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yongxiang Li
- General Surgery Department, the First Affiliated Hospital of Anhui Medical University, Hefei, China
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20
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Abdullah M, Ehaideb S, Roberts G, Bouchama A. Insights into pathophysiology and therapeutic strategies for heat stroke: Lessons from a baboon model. Exp Physiol 2024; 109:484-501. [PMID: 38124439 PMCID: PMC10988686 DOI: 10.1113/ep091586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
Heat stroke is a perilous condition marked by severe hyperthermia and extensive multiorgan dysfunction, posing a considerable risk of mortality if not promptly identified and treated. Furthermore, the complex biological mechanisms underlying heat stroke-induced tissue and cell damage across organ systems remain incompletely understood. This knowledge gap has hindered the advancement of effective preventive and therapeutic strategies against this condition. In this narrative review, we synthesize key insights gained over a decade using a translational baboon model of heat stroke. By replicating heat stroke pathology in a non-human primate species that closely resembles humans, we have unveiled novel insights into the pathways of organ injury and cell death elicited by this condition. Here, we contextualize and integrate the lessons learned concerning heat stroke pathophysiology and recovery, areas that are inherently challenging to investigate directly in human subjects. We suggest novel research directions to advance the understanding of the complex mechanisms underlying cell death and organ injury. This may lead to precise therapeutic strategies that benefit individuals suffering from this debilitating condition.
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Affiliation(s)
- Mashan Abdullah
- Experimental Medicine Department, King Abdullah International Medical Research Center/King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical CityMinistry of National Guard Health AffairsRiyadhSaudi Arabia
| | - Salleh Ehaideb
- Experimental Medicine Department, King Abdullah International Medical Research Center/King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical CityMinistry of National Guard Health AffairsRiyadhSaudi Arabia
| | - George Roberts
- Pathology and Laboratory MedicineKing Faisal Specialist Hospital and Research CenterRiyadhSaudi Arabia
| | - Abderrezak Bouchama
- Experimental Medicine Department, King Abdullah International Medical Research Center/King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical CityMinistry of National Guard Health AffairsRiyadhSaudi Arabia
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21
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Xu S, Ma L, Wu T, Tian Y, Wu L. Assessment of cellular senescence potential of PM2.5 using 3D human lung fibroblast spheroids in vitro model. Toxicol Res (Camb) 2024; 13:tfae037. [PMID: 38500513 PMCID: PMC10944558 DOI: 10.1093/toxres/tfae037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/30/2024] [Accepted: 02/26/2024] [Indexed: 03/20/2024] Open
Abstract
Background Epidemiological studies demonstrate that particulate matter 2.5 (PM2.5) exposure closely related to chronic respiratory diseases. Cellular senescence plays an important role in many diseases. However, it is not fully clear whether PM2.5 exposure could induce cellular senescence in the human lung. In this study, we generated a three-dimensional (3D) spheroid model using isolated primary human lung fibroblasts (HLFs) to investigate the effects of PM2.5 on cellular senescence at the 3D level. Methods 3D spheroids were exposed to 25-100 μg/ml of PM2.5 in order to evaluate the impact on cellular senescence. SA-β-galactosidase activity, cell proliferation, and the expression of key genes and proteins were detected. Results Exposure of the HLF spheroids to PM2.5 yielded a more sensitive cytotoxicity than 2D HLF cell culture. Importantly, PM2.5 exposure induced the rapid progression of cellular senescence in 3D HLF spheroids, with a dramatically increased SA-β-Gal activity. In exploiting the mechanism underlying the effect of PM2.5 on senescence, we found a significant increase of DNA damage, upregulation of p21 protein levels, and suppression of cell proliferation in PM2.5-treated HLF spheroids. Moreover, PM2.5 exposure created a significant inflammatory response, which may be at least partially associated with the activation of TGF-β1/Smad3 axis and HMGB1 pathway. Conclusions Our results indicate that PM2.5 could induce DNA damage, inflammation, and cellular senescence in 3D HLF spheroids, which may provide a new evidence for PM2.5 toxicity based on a 3D model which has been shown to be more in vivo-like in their phenotype and physiology than 2D cultures.
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Affiliation(s)
- Shengmin Xu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, 111 Jiulong Road, Jingkai District, Hefei, Anhui 230601, China
| | - Lin Ma
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, 111 Jiulong Road, Jingkai District, Hefei, Anhui 230601, China
| | - Tao Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 350 Shushanhu Road, Shushan District, Hefei, Anhui 230031, China
| | - Yushan Tian
- Key Laboratory of Tobacco Biological Effects, China National Tobacco Quality Supervision and Test Center, 6 Cuizhu Street, New & High-tech Industry Development District, Zhengzhou, Henan 450001, China
| | - Lijun Wu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, 111 Jiulong Road, Jingkai District, Hefei, Anhui 230601, China
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, 350 Shushanhu Road, Shushan District, Hefei, Anhui 230031, China
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22
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Wang J, Wu Z, Huang Y, Jin L, Xu J, Yao Z, Ouyang X, Zhou Z, Mao S, Cao J, Lai B, Shen W. IRF4 induces M1 macrophage polarization and aggravates ulcerative colitis progression by the Bcl6-dependent STAT3 pathway. Environ Toxicol 2024; 39:2390-2404. [PMID: 38164749 DOI: 10.1002/tox.24106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/05/2023] [Accepted: 12/10/2023] [Indexed: 01/03/2024]
Abstract
Ulcerative colitis (UC) is an idiopathic chronic intestinal inflammation. An increasing body of evidence shows that macrophages play an important role in the pathogenesis of UC. Interferon regulatory factor 4 (IRF4) is crucial for the development of autoimmune diseases via regulating immune cells. This research was designed to explore the function of IRF4 in UC and its association with macrophage polarization. The in vitro model of UC was established by stimulating colonic epithelial cells with tumor necrosis factor α (TNF-α). A mouse model of UC was constructed by injecting C57BL/6 mice with dextran sulfate sodium salt. Flow cytometry was used to assess percentage of CD11b+ CD86+ and CD11b+ CD206+ cells in bone marrow macrophages. Occult blood tests were used to detect hematochezia. Hematoxylin and eosin staining assay was used to assess colon pathological changes. Enzyme-linked immunosorbent assay (ELISA) was used to detect concentrations of inflammatory cytokines. The interaction of IRF4 and B-cell lymphoma 6 (Bcl6) was confirmed using GST pull-down and coimmunoprecipitation assays. Our findings revealed that IRF4 promoted cell apoptosis and stimulated M1 macrophage polarization in vitro. Furthermore, IRF4 aggravated symptoms of the mouse model of UC and aggravated M1 macrophage polarization in vivo. IRF4 negatively regulated Bcl6 expression. Downregulation of Bcl6 promoted apoptosis and M1 macrophage polarization in the presence of IRF4 in vitro and in vivo. Moreover, Bcl6 positively mediated the Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) signaling pathway. In conclusion, IRF4 aggravated UC progression through promoting M1 macrophage polarization via Bcl6/JAK2/STAT3 pathway. These findings suggested that IRF4 might be a good target to competitively inhibit or to treat with UC.
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Affiliation(s)
- Jiwei Wang
- Department of Ultrasound, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhao Wu
- Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yulin Huang
- Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Lin Jin
- Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jinyi Xu
- Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhiyi Yao
- Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xi Ouyang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhiyong Zhou
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Shengxun Mao
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jiaqing Cao
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Bin Lai
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Wei Shen
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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23
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Cheng Y, Chen Y, Li K, Liu S, Pang C, Gao L, Xie J, Wenjing LV, Yu H, Deng B. How inflammation dictates diabetic peripheral neuropathy: An enlightening review. CNS Neurosci Ther 2024; 30:e14477. [PMID: 37795833 PMCID: PMC11017439 DOI: 10.1111/cns.14477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/28/2023] [Accepted: 09/08/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Diabetic peripheral neuropathy (DPN) constitutes a debilitating complication associated with diabetes. Although, the past decade has seen rapid developments in understanding the complex etiology of DPN, there are no approved therapies that can halt the development of DPN, or target the damaged nerve. Therefore, clarifying the pathogenesis of DPN and finding effective treatment are the crucial issues for the clinical management of DPN. AIMS This review is aiming to summary the current knowledge on the pathogenesis of DPN, especially the mechanism and application of inflammatory response. METHODS We systematically summarized the latest studies on the pathogenesis and therapeutic strategies of diabetic neuropathy in PubMed. RESULTS In this seminal review, the underappreciated role of immune activation in the progression of DPN is scrutinized. Novel insights into the inflammatory regulatory mechanisms of DPN have been unearthed, illuminating potential therapeutic strategies of notable clinical significance. Additionally, a nuanced examination of DPN's complex etiology, including aberrations in glycemic control and insulin signaling pathways, is presented. Crucially, an emphasis has been placed on translating these novel understandings into tangible clinical interventions to ameliorate patient outcomes. CONCLUSIONS This review is distinguished by synthesizing cutting-edge mechanisms linking inflammation to DPN and identifying innovative, inflammation-targeted therapeutic approaches.
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Affiliation(s)
- Yifan Cheng
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's HospitalAffiliated People's Hospital, Hangzhou Medical CollegeHangzhouChina
| | - Yinuo Chen
- Department of NeurologyFirst Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
- First School of Clinical MedicineWenzhou Medical UniversityWenzhouZhejiang ProvinceChina
| | - Kezheng Li
- Department of NeurologyFirst Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
- First School of Clinical MedicineWenzhou Medical UniversityWenzhouZhejiang ProvinceChina
| | - Shuwei Liu
- First School of Clinical MedicineWenzhou Medical UniversityWenzhouZhejiang ProvinceChina
| | - Chunyang Pang
- Department of NeurologyFirst Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
| | - Lingfei Gao
- Department of NeurologyFirst Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
| | - Jiali Xie
- Department of Neurology, Shanghai East HospitalTongji UniversityShanghaiP.R. China
| | - L. V. Wenjing
- Department of GeriatricsThe Affiliated Hospital of Qingdao UniversityQingdaoShandong ProvinceChina
| | - Huan Yu
- Department of PediatricsSecond Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Binbin Deng
- Department of NeurologyFirst Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
- First School of Clinical MedicineWenzhou Medical UniversityWenzhouZhejiang ProvinceChina
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24
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Liu H, Liu W, Ai M, Hao X, Zhang Q, Ren J, Zhang K. Effects of β-mannanase supplementation on productive performance, inflammation, energy metabolism, and cecum microbiota composition of laying hens fed with reduced-energy diets. Poult Sci 2024; 103:103521. [PMID: 38367470 PMCID: PMC10882124 DOI: 10.1016/j.psj.2024.103521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/19/2024] Open
Abstract
The objective of this study is to investigate the beneficial effects and underlying mechanism of dietary β-mannanase supplementation on the productive performance of laying hens fed with metabolic energy (ME)-reduced diets. A total of 448 Hy-Line gray laying hens were randomly assigned to seven groups. Each group had 8 replicates with 8 hens. The groups included a control diet (CON) with a ME of 2750 kcal/Kg, diets reduced by 100 kcal/Kg or 200 kcal/Kg ME (ME_100 or ME_200), and diets with 0.15 g/Kg or 0.2 g/Kg β-mannanase (ME_100+β-M_0.15, ME_100+β-M_0.2, ME_200+β-M_0.15, and ME_200+β-M_0.2). The productive performance, egg quality, intestinal morphology, inflammatory response, mRNA expression related to the Nuclear factor kappa B (NF-κB) and AMPK pathway, and cecum microbiome were evaluated in this study. ME-reduced diets negatively impacted the productive performance of laying hens. However, supplementation with β-mannanase improved FCR, decreased ADFI, and restored average egg weight to the level of the CON group. ME-reduced diets increased the levels of interleukin-1β (IL-1β) and IL-6 while decreasing the levels of IL-4 and IL-10 in the jejunum of laying hens. However, dietary β-mannanase supplementation improved jejunum morphology, reduced pro-inflammatory cytokine concentrations, and increased levels of anti-inflammatory factors in laying hens fed with ME-reduced diets. The mRNA levels of IL-6, IFN-γ, TLR4, MyD88, and NF-κB in the jejunum of ME-reduced diets were significantly higher than that in CON, dietary β-mannanase supplementation decreased these genes expression in laying hens fed with ME-reduced diets. Moreover, dietary β-mannanase supplementation also decreased the mRNA levels of AMPKα and AMPKγ, and increased the abundance of mTOR in the jejunum of laying hens fed with ME-reduced diets. Cecum microbiota analysis revealed that dietary β-mannanase increased the abundance of various beneficial bacteria (e.g., g_Pseudoflavonifractor, g_Butyricicoccus, and f_Lactobacillaceae) in laying hens fed with ME-reduced diets. In conclusion, dietary β-mannanase supplementation could improve the productive performance of laying hens fed with a ME-reduced diet by improving intestinal morphology, alleviating intestinal inflammation, changing energy metabolism-related signaling pathways, and increasing cecum-beneficial microbiota.
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Affiliation(s)
- Huawei Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Weiyong Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Mingming Ai
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiaojing Hao
- Qingdao Animal Husbandry Workstation (Qingdao Research Institute of Husbandry and Veterinary), Qingdao 266100, China
| | - Qian Zhang
- Qingdao Animal Husbandry Workstation (Qingdao Research Institute of Husbandry and Veterinary), Qingdao 266100, China
| | - Jingle Ren
- Qingdao Animal Husbandry Workstation (Qingdao Research Institute of Husbandry and Veterinary), Qingdao 266100, China
| | - Kai Zhang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
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25
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Celorrio San Miguel AM, Roche E, Herranz-López M, Celorrio San Miguel M, Mielgo-Ayuso J, Fernández-Lázaro D. Impact of Melatonin Supplementation on Sports Performance and Circulating Biomarkers in Highly Trained Athletes: A Systematic Review of Randomized Controlled Trials. Nutrients 2024; 16:1011. [PMID: 38613044 PMCID: PMC11013451 DOI: 10.3390/nu16071011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Melatonin (N-acetyl-5 methoxytryptamine) is an indolic neurohormone that modulates a variety of physiological functions due to its antioxidant, anti-inflammatory, and immunoregulatory properties. Therefore, the purpose of this study was to critically review the effects of melatonin supplementation in sports performance and circulating biomarkers related to the health status of highly trained athletes. Data were obtained by performing searches in the following three bibliography databases: Web of Science, PubMed, and Scopus. The terms used were "Highly Trained Athletes", "Melatonin", and "Sports Performance", "Health Biomarkers" using "Humans" as a filter. The search update was carried out in February 2024 from original articles published with a controlled trial design. The PRISMA rules, the modified McMaster critical review form for quantitative studies, the PEDro scale, and the Cochrane risk of bias were applied. According to the inclusion and exclusion criteria, 21 articles were selected out of 294 references. The dose of melatonin supplemented in the trials ranged between 5 mg to 100 mg administered before or after exercise. The outcomes showed improvements in antioxidant status and inflammatory response and reversed liver damage and muscle damage. Moderate effects on modulating glycemia, total cholesterol, triglycerides, and creatinine were reported. Promising data were found regarding the potential benefits of melatonin in hematological biomarkers, hormonal responses, and sports performance. Therefore, the true efficiency of melatonin to directly improve sports performance remains to be assessed. Nevertheless, an indirect effect of melatonin supplementation in sports performance could be evaluated through improvements in health biomarkers.
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Affiliation(s)
- Ana M. Celorrio San Miguel
- Department of Chemistry, Polytechnic Secondary Education High School, 42004 Soria, Spain;
- Doctoral School, University of León, Campus de Vegazana, 24071 Leon, Spain
| | - Enrique Roche
- Department of Applied Biology-Nutrition, Institute of Bioengineering, University Miguel Hernandez, 03202 Elche, Spain;
- Alicante Institute for Health and Biomedical Research (ISABIAL), 03010 Alicante, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Carlos III Health Institute (ISCIII), 28029 Madrid, Spain
- Research Group “Nutrition and Physical Activity”, Spanish Nutrition Society “SEÑ”, 28010 Madrid, Spain;
| | - María Herranz-López
- Institute of Research, Development, and Innovation in Healthcare Biotechnology of Elche (IDiBE), Miguel Hernández University (UMH), 03202 Elche, Spain;
| | - Marta Celorrio San Miguel
- Emergency Department, Línea de la Concepción Hospital, C. Gabriel Miró, 108, 11300 La Línea de la Concepción, Spain;
| | - Juan Mielgo-Ayuso
- Research Group “Nutrition and Physical Activity”, Spanish Nutrition Society “SEÑ”, 28010 Madrid, Spain;
- Department of Health Sciences, Faculty of Health Sciences, University of Burgos, 09001 Burgos, Spain
| | - Diego Fernández-Lázaro
- Research Group “Nutrition and Physical Activity”, Spanish Nutrition Society “SEÑ”, 28010 Madrid, Spain;
- Department of Cellular Biology, Genetics, Histology and Pharmacology, Faculty of Health Sciences, University of Valladolid, Campus of Soria, 42004 Soria, Spain
- Neurobiology Research Group, Faculty of Medicine, University of Valladolid, 47005 Valladolid, Spain
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Li H, Liu J, Ji X. Interferon-alpha 1 expression indicates the disease activity and response of patients with ankylosing spondylitis to anti-TNF-α treatment. Mod Rheumatol 2024; 34:592-598. [PMID: 37022149 DOI: 10.1093/mr/road039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/19/2023] [Accepted: 04/03/2023] [Indexed: 04/07/2023]
Abstract
OBJECTIVES This study aimed to investigate whether interferon-alpha 1 (IFNA1) is predictive of Ankylosing spondylitis (AS) progression and treatment response to Tumour necrosis factor inhibitors (TNFis). METHODS Data of 50 AS patients receiving TNFi for 24 weeks were retrospectively analysed. AS patients who reached the Assessment of Spondyloarthritis International Society 40 response at the W24 were classified as responders to TNFi treatment; otherwise, they were classified as nonresponders. Human fibroblast-like synoviocytes (HFLS) isolated from AS patients (AS-HFLS) were used for in vitro validation. RESULTS When the IFNA1 expression level was used to diagnose AS patients, an area under the curve of 0.895 was yielded (P < .001). Pearson correlation analysis showed negative correlations between IFNA1 expression, C-reactive protein (CRP) level, Bath AS Disease Activity Index scores, AS Disease Activity Score with CRP, and the production of inflammatory cytokines. An increased IFNA1 expression level was found to be associated with a better treatment response to TNFi. IFNA1 overexpression could protect HFLS against inflammatory response in the setting of AS. CONCLUSIONS Blood IFNA1 deficiency is correlated with inflammatory cytokine production and disease activity and is indicative of unsatisfied response to TNFi treatment in AS patients.
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Affiliation(s)
- Haibo Li
- Department of Rheumatology, Shenzhen Hospital of Integrated Traditional and Western Medicine, Shenzhen, China
| | - Jingjing Liu
- Department of Rheumatology, The Second Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan, China
| | - Xueping Ji
- Department of Nephrology, Liaocheng Third People's Hospital, Liaocheng, Shandong, China
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Zhu Y, Cai H, Fang S, Shen H, Yan Z, Wang D, Qi N, Li J, Lv M, Lin X, Hu J, Song Y, Chen X, Yin L, Zhang J, Liao S, Sun M. Unraveling the pathogenic potential of the Pentatrichomonas hominis PHGD strain: impact on IPEC-J2 cell growth, adhesion, and gene expression. Parasite 2024; 31:18. [PMID: 38530211 DOI: 10.1051/parasite/2024014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/27/2024] [Indexed: 03/27/2024] Open
Abstract
Pentatrichomonas hominis, a flagellated parasitic protozoan, predominantly infects the mammalian digestive tract, often causing symptoms such as abdominal pain and diarrhea. However, studies investigating its pathogenicity are limited, and the mechanisms underlying P. hominis-induced diarrhea remain unclear. Establishing an in vitro cell model for P. hominis infection is imperative. This study investigated the interaction between P. hominis and IPEC-J2 cells and its impact on parasite growth, adhesion, morphology, and cell viability. Co-cultivation of P. hominis with IPEC-J2 cells resulted in exponential growth of the parasite, with peak densities reaching approximately 4.8 × 105 cells/mL and 1.2 × 106 cells/mL at 48 h for initial inoculation concentrations of 104 cells/mL and 105 cells/mL, respectively. The adhesion rate of P. hominis to IPEC-J2 cells reached a maximum of 93.82% and 86.57% at 24 h for initial inoculation concentrations of 104 cells/mL and 105 cells/mL, respectively. Morphological changes in IPEC-J2 cells co-cultivated with P. hominis were observed, manifesting as elongated and irregular shapes. The viability of IPEC-J2 cells exhibited a decreasing trend with increasing P. hominis concentration and co-cultivation time. Additionally, the mRNA expression levels of IL-6, IL-8, and TNF-α were upregulated, whereas those of CAT and CuZn-SOD were downregulated. These findings provide quantitative evidence that P. hominis can promote its growth by adhering to IPEC-J2 cells, inducing morphological changes, reducing cell viability, and triggering inflammatory responses. Further in vivo studies are warranted to confirm these results and enhance our understanding of P. hominis infection.
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Affiliation(s)
- Yibin Zhu
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Haiming Cai
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Siyun Fang
- Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, Guangdong 527400, China
| | - Hanqin Shen
- Guangdong Jingjie Inspection and Testing Co., Ltd., Xinxing, Guangdong 527400, China
| | - Zhuanqiang Yan
- Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, Guangdong 527400, China
| | - Dingai Wang
- Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, Guangdong 527400, China
| | - Nanshan Qi
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Juan Li
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Minna Lv
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Xuhui Lin
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Junjing Hu
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Yongle Song
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Xiangjie Chen
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Lijun Yin
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Jianfei Zhang
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Shenquan Liao
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Mingfei Sun
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
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Li S, Zhang BW, Lou QQ, Liu Y, Wei ZJ, Huang J, Yao KH, Xu QR, Fan J, Xi Y, Yang L, Chen S. ATG5 nonautophagically regulates inflammation and differentiation in mouse embryonic stem cells. Autophagy 2024:1-3. [PMID: 38477302 DOI: 10.1080/15548627.2024.2330042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 03/09/2024] [Indexed: 03/14/2024] Open
Abstract
Embryonic stem cells (ESCs), with abilities of infinite proliferation (self-renewal) and to differentiate into distinct cell types (pluripotency), show attenuated inflammatory response against cytokines or pathogens, which is recognized as a unique characteristic of ESCs compared with somatic cells. However, the underlying molecular mechanisms remain unclear, and whether the attenuated inflammatory state is involved in ESC differentiation is completely unknown. Our recent study demonstrated that macroautophagy/autophagy-related protein ATG5 inhibits the inflammatory response of mouse ESCs (MmESCs) by promoting the degradation of BTRC/β-TrCP1 and further the downregulation of NFKB/NF-κB signaling. In addition, maintenance of an attenuated inflammation status in MmESCs is required for their differentiation. In conclusion, ATG5 is a key regulator for the regulation of inflammatory response and differentiation of MmESCs.
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Affiliation(s)
- Sheng Li
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Bo-Wen Zhang
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Qian-Qian Lou
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Yue Liu
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Zi-Juan Wei
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Jing Huang
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Kun-Hou Yao
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Qian-Ru Xu
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Juan Fan
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Yan Xi
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Lu Yang
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
| | - Su Chen
- Laboratory of Molecular and Cellular Biology, Department of Cell Biology and Genetics of School of Basic Medical Sciences and Department of General Surgery of Huaihe Hospital, Henan University, Kaifeng, Henan Province, PR China
- Zhongzhou Laboratory, Zhengzhou, Henan Province, PR China
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Li X, Cheng L, Liu X, Wang X, Li R, Fan S, Yan Q, Ma T, Ma Y, Kang J. Dopamine promotes Klebsiella quasivariicola proliferation and inflammatory response in the presence of macrophages. Front Cell Infect Microbiol 2024; 14:1322113. [PMID: 38585654 PMCID: PMC10995343 DOI: 10.3389/fcimb.2024.1322113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 03/04/2024] [Indexed: 04/09/2024] Open
Abstract
Background Dopamine, a frequently used therapeutic agent for critically ill patients, has been shown to be implicated in clinical infections recently, however, the precise mechanisms underlying this association remain elusive. Klebsiella quasivariicola, a novel strain belonging to the Klebsiella species, exhibits potential pathogenic attributes. The impact of dopamine on K. quasivariicola infection has aroused our interest. Objective Considering the contribution of host immune factors during infection, this study aimed to investigate the intricate interactions between K. quasivariicola, dopamine, and macrophages were explored. Methods RAW264.7 cells and C57/BL6 mice were infected with K. quasivariicola, and the bacterial growth within macrophage, the production of inflammatory cytokines and the pathological changes in mice lungs were detected, in the absence or presence of dopamine. Results Dopamine inhibited the growth of K. quasivariicola in the medium, but promoted bacterial growth when co-cultured with macrophages. The expression of proinflammatory cytokines increased in RAW 264.7 cells infected with K. quasivariicola, and a significant rise was observed upon the addition of dopamine. The infection of K. quasivariicola in mice induced an inflammatory response and lung injury, which were exacerbated by the administration of dopamine. Conclusions Our findings suggest that dopamine may be one of the potential risk factors associated with K. quasivariicola infection. This empirical insight provides solid references for clinical precision medicine. Furthermore, an in vitro model of microbes-drugs-host immune cells for inhibitor screening was proposed to more accurately replicate the complex in vivo environment. This fundamental work had contributed to the present understanding of the crosstalk between pathogen, dopamine and host immune cells.
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Affiliation(s)
- Xiang Li
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
- Department of Pathology, Changzhi People’s Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Lin Cheng
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Xueyang Liu
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiaoli Wang
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Rui Li
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Shao Fan
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Qiulong Yan
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Tonghui Ma
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yufang Ma
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Jian Kang
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
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Zhou X, Iida H, Li Y, Ota A, Zhuo L, Nobuhara R, Terajima Y, Naiki M, Reddi AH, Kimata K, Ushida T. Neurotropin® ameliorates chronic pain associated with scar formation in a mouse model: A gene expression analysis of the inflammatory response. Mol Pain 2024:17448069241245420. [PMID: 38511285 DOI: 10.1177/17448069241245420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND Scar formation after trauma and surgery involves an inflammatory response and can lead to the development of chronic pain. Neurotropin® (NTP) is a nonprotein extract from inflamed skin of rabbits inoculated with vaccinia virus and has been widely used for the treatment of chronic pain. However, the in vivo effects of NTP on painful scar formation have not been determined. To investigate the molecular mechanisms underlying the effects of NTP on the inflammatory response, we evaluated gene expression in the scar tissues and dorsal root ganglions (DRGs) of mice administered NTP and control mice. METHODS AND RESULTS Mice were injected with saline or NTP as controls, whereas the other mice underwent surgery on the left hind paw to induced painful scar formation, followed by injections of saline or NTP. Hind paw pain was evaluated by measuring the threshold for mechanical stimulation using the von Frey test. The paw withdrawal threshold gradually returned to pre-operative levels over four weeks post-operation; NTP-treated mice showed a significantly shortened recovery time of approximately three weeks, suggesting that NTP exerted an analgesic effect in this mouse model. Total RNA was extracted from the scarred hind paw tissues and DRGs were collected 1 week post-operation for a microarray analysis. A gene set enrichment analysis revealed that some gene sets related to inflammatory responses were activated or inhibited following surgery and NTP administration. Quantitative real-time reverse transcription-polymerase chain reaction data for several genes were consistent with the microarray results. CONCLUSION The administration of NTP to the hind paws of mice with painful scar formation following surgery diminished nociceptive pain and reduced the inflammatory response. NTP inhibited the expression of some genes involved in the response to surgery-induced inflammation. Therefore, NTP is a potential therapeutic option for painful scar associated with chronic pain.
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Affiliation(s)
- Xuan Zhou
- Multidisciplinary Pain CenterAichi Medical University
| | | | - Yugiang Li
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of EducationEast China Normal University School of Educational Sciences
| | - Akinobu Ota
- Department of BiochemistryAichi Medical University
| | - Lisheng Zhuo
- Nagoya University Graduate School of Medicine Faculty of Medicine
| | | | | | - Mitsuru Naiki
- Institute of Bio-Active ScienceNippon Zoki Pharmaceutical Co Ltd
| | - A Hari Reddi
- Orthopedic Surgery, Center for Tissue Regeneration and Repair, School of MedicineUniversity of California Davis
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Wang C, Liu J, Wu Q, Wang Z, Hu B, Bo L. The role of TIM-3 in sepsis: a promising target for immunotherapy? Front Immunol 2024; 15:1328667. [PMID: 38576606 PMCID: PMC10991702 DOI: 10.3389/fimmu.2024.1328667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/11/2024] [Indexed: 04/06/2024] Open
Abstract
Sepsis remains a significant cause of mortality and morbidity worldwide, with limited effective treatment options. The T-cell immunoglobulin and mucin domain-containing molecule 3 (TIM-3) has emerged as a potential therapeutic target in various immune-related disorders. This narrative review aims to explore the role of TIM-3 in sepsis and evaluate its potential as a promising target for immunotherapy. We discuss the dynamic expression patterns of TIM-3 during sepsis and its involvement in regulating immune responses. Furthermore, we examine the preclinical studies investigating the regulation of TIM-3 signaling pathways in septic models, highlighting the potential therapeutic benefits and challenges associated with targeting TIM-3. Overall, this review emphasizes the importance of TIM-3 in sepsis pathogenesis and underscores the promising prospects of TIM-3-based immunotherapy as a potential strategy to combat this life-threatening condition.
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Affiliation(s)
- Changli Wang
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jinhai Liu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Qi Wu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zhi Wang
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Baoji Hu
- Department of Anesthesiology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Lulong Bo
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
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包 汉, 王 苏, 吕 穆, 王 永, 姜 萍, 李 晓. [Activation of α7 nAChR improves white fat homeostasis and promotes beige adipogenesis and thermogenesis in obese mice]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:499-506. [PMID: 38597441 PMCID: PMC11006706 DOI: 10.12122/j.issn.1673-4254.2024.03.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Indexed: 04/11/2024]
Abstract
OBJECTIVE To investigate the effects of α7 nicotinic acetylcholine receptor (nAChR) agonist on β3-adrenoceptor agonist-induced impairment of white fat homeostasis and beige adipose formation and heat production in obese mice. METHODS Forty obese C57BL/6J mice were randomized into high-fat feeding group, β3-adrenoceptor agonist-treated model group, α7 nAChR agonist group, and α7 nAChR inhibitor group (n=10), with another 10 mice with normal feeding as the blank control group. White adipose tissue from the epididymis of the mice were sampled for HE staining of the adipocytes. The expression levels of TNF-α, IL-1β, IL-10 and TGF-β in the white adipose tissue were determined by ELISA, and the mRNA levels of iNOS, Arg1, UCP-1, PRDM-16 and PGC-1α were detected using RT-qPCR. Western blotting was performed to detect the expression levels of NF-κB P65, p-JAK2, p-STAT3 in the white adipose tissue. RESULTS Compared with those in the blank control group, the mice with high-fat feeding showed significantly increased body weight, more fat vacuoles in the white adipose tissue, increased volume of lipid droplets in the adipocytes, upregulated iNOS mRNA expression and protein expression of TNF-α and IL-1β, and lowered expression of Arg-1 mRNA and IL-10 and TGF-β proteins (P < 0.01). Treatment with α7 nAChR significantly reduced mRNA levels of PRDM-16, PGC-1α and UCP-1, lowered TNF-α and IL-1β expressions, increased IL-10 and TGF-β expressions, and reduced M1/M2 macrophage ratio in the white adipose tissues (P < 0.05 or 0.01). CONCLUSION Activation of α7 nAchR improves white adipose tissue homeostasis impairment induced by β3 agonist, promotes transformation of M1 to M2 macrophages, reduces inflammatory response in white adipose tissue, and promote beige adipogenesis and thermogenesis in obese mice.
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Affiliation(s)
- 汉生 包
- 山东中医药大学,山东 济南 250355Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - 苏童 王
- 山东中医药大学,山东 济南 250355Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - 穆杰 吕
- 山东中医药大学,山东 济南 250355Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - 永成 王
- 山东中医药大学附属医院,山东 济南 250014Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - 萍 姜
- 山东中医药大学,山东 济南 250355Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - 晓 李
- 山东中医药大学附属医院,山东 济南 250014Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China
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Wang Y, Wang X, Chen Y, Zhang Y, Zhen X, Tao S, Dou J, Li P, Jiang G. Perivascular fat tissue and vascular aging: a sword and a shield. Pharmacol Res 2024; 203:107140. [PMID: 38513826 DOI: 10.1016/j.phrs.2024.107140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 02/16/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024]
Abstract
The understanding of the function of perivascular adipose tissue (PVAT) in vascular aging has significantly changed due to the increasing amount of information regarding its biology. Adipose tissue surrounding blood vessels is increasingly recognized as a key regulator of vascular disorders. It has significant endocrine and paracrine effects on the vasculature and is mediated by the production of a variety of bioactive chemicals. It also participates in a number of pathological regulatory processes, including oxidative stress, immunological inflammation, lipid metabolism, vasoconstriction, and dilation. Mechanisms of homeostasis and interactions between cells at the local level tightly regulate the function and secretory repertoire of PVAT, which can become dysregulated during vascular aging. The PVAT secretion group changes from being reducing inflammation and lowering cholesterol to increasing inflammation and increasing cholesterol in response to systemic or local inflammation and insulin resistance. In addition, the interaction between the PVAT and the vasculature is reciprocal, and the biological processes of PVAT are directly influenced by the pertinent indicators of vascular aging. The architectural and biological traits of PVAT, the molecular mechanism of crosstalk between PVAT and vascular aging, and the clinical correlation of vascular age-related disorders are all summarized in this review. In addition, this paper aims to elucidate and evaluate the potential benefits of therapeutically targeting PVAT in the context of mitigating vascular aging. Furthermore, it will discuss the latest advancements in technology used for targeting PVAT.
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Affiliation(s)
- Yan Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China (100029)
| | - Xianmin Wang
- Xinjiang Uygur Autonomous Region Hospital of Traditional Chinese Medicine
| | - Yang Chen
- School of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang, China (830011)
| | - Yuelin Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China (100029)
| | - Xianjie Zhen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China (100029)
| | - Siyu Tao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China (100029)
| | - Jinfang Dou
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China (100029)
| | - Peng Li
- Xinjiang Uygur Autonomous Region Hospital of Traditional Chinese Medicine
| | - Guangjian Jiang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China (100029); School of Traditional Chinese Medicine, Xinjiang Medical University, Xinjiang, China (830011).
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Liang A, Feng T, Gao X, Zhao B, Chen S. Identification of PDGFA as a Neutrophil-related Biomarker Linked to the Advancement of Diabetic Retinopathy through Integrated Bioinformatics Analysis. Endocr Metab Immune Disord Drug Targets 2024; 24:EMIDDT-EPUB-139263. [PMID: 38504565 DOI: 10.2174/0118715303279463240220050158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/18/2024] [Accepted: 01/30/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND The dysregulation of the innate immune system plays a crucial role in the development of Diabetic Retinopathy (DR). To gain an insight into the underlying mechanism of DR, it is essential to identify specific biomarkers associated with immune cell infiltration. METHODS In this study, we retrieved the GSE94019 and GSE60436 datasets from the Gene Expression Omnibus (GEO) database. By utilizing CIBERSORT, MCPcounter, and xCell algorithms, we conducted a comprehensive analysis of the immune cell infiltration landscape in DR. The limma package was employed to identify Differentially Expressed Necroptosis-related Genes (DENRGs). Subsequently, enrichment analysis was performed to investigate the potential functions of the DENRGs. To identify the core DENRGs, the CytoHubba plug-in in Cytoscape software was utilized. The expression levels of these core DENRGs were verified in an independent dataset. RESULTS Our analysis identified 213 DENRGs, and among them, Platelet-derived Growth Factor subunit A (PDGFA) was identified as a core DENRG. Notably, the expression of PDGFA was found to be upregulated in DR, and this finding was further validated in the GSE102485 dataset. Additionally, the results of GSVA and GSEA revealed that in the high PDGFA group, there was activation of pathways related to inflammation and the immune system. Moreover, analysis of immune infiltration demonstrated a significant association between PDGFA gene expression and the infiltration levels of specific immune cells, including basophils, macrophages M1, macrophages, neutrophils, monocytes, NK cells, and B cells. CONCLUSION The involvement of neutrophils in the development and progression of DR is suggested. PDGFA has emerged as a potential marker and is linked to the infiltration of immune cells in DR. These findings shed new light on the underlying mechanisms of DR.
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Affiliation(s)
- Anran Liang
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
- Department of Ophthalmology, Jining No.1 People's Hospital, Jining, Shandong, China
| | - Tingting Feng
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, China
| | - Xiang Gao
- Anyang Eye Hospital, Anyang, Henan, China
| | - Bowen Zhao
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, China
| | - Song Chen
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, China
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Xie Y, Han L, Zhao Y, Zhao L, Yang F, Cao J, Tang Q. Effect of ultrasound-guided stellate ganglion block on lung protection for patients undergoing one-lung ventilation. Am J Transl Res 2024; 16:794-808. [PMID: 38586109 PMCID: PMC10994812 DOI: 10.62347/ufzf5671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/11/2022] [Indexed: 04/09/2024]
Abstract
OBJECTIVE To explore the potential effect of ultrasound-guided stellate ganglion block (SGB) on lung protection for patients undergoing one-lung ventilation (OLV). METHODS A total of 123 patients undergoing elective one-lung ventilation surgery were selected as research subjects in this prospective study. These patients were randomly divided into the SGB group, control group and blank group on average. Stellate ganglion block was carried out in the SGB and control groups. Patients in the SGB group were injected with 6 ml mixture of 0.25% ropivacaine hydrochloride and 1% lidocaine hydrochloride, while those in the control group were injected with 6 mL of 0.9% saline. Punctures weren't performed for patients in the blank group. The same induction and maintenance of general anesthesia was adopted for all three groups. Hemodynamics, respiratory parameters and arterial blood gas analysis were recorded after entering the operation room (T0), pre-OLV (T1), 30 min after OLV (T2), 60 min after OLV (T3), at the end of surgery (T4), and 30 min after extubation (T5). Oxygenation index (OI), pulmonary shunt fraction (Qs/Qt) and pH value were compared at different time points. Intravenous serum was collected at T0, T3 and T5 for the detection of surfactant proteins A (SP-A), superoxide dismutase (SOD), malondialdehyde (MDA), interleukin-6 (IL-6) and interleukin-10 (IL-10) levels, respectively. The complications related to SGB after surgery and the postoperative pulmonary complications within 72 h were recorded. RESULTS At T1, T2, and T3, MAP level in SGB group was lower than that in blank and control groups (P<0.05). At T2, and T3, SGB group had lower hear rate (HR), peak airway pressure (Ppeak) and tidal volume (TV) than blank and control groups (all P<0.05). From T2 to T5, SGB group had higher OI but lower Qs/Qt than blank and control groups (both P<0.05). At T3 and T5, SGB group had lower SP-A, IL-6, and MDA levels but higher IL-10 and SOD levels than blank and control groups (all P<0.05). There was one case of hypoxemia in the blank group within 72 h after surgery. CONCLUSION Ultrasound-guided SGB has lung-protective effects on patients undergoing OLV, which significantly improves patients' OI, reduces intrapulmonary shunts, declines ventilator-induced lung damage, and inhibits inflammatory response as well as oxidative stress (China Clinical Trial Registry, registration number ChiCTR2000033385, https://www.chictr.org.cn).
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Affiliation(s)
- Yang Xie
- Department of Anesthesiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School of Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Li Han
- Department of Anesthesiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School of Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Yue Zhao
- Department of Anesthesiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School of Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Lihong Zhao
- Department of Anesthesiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School of Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Fen Yang
- Department of Anesthesiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School of Nanjing Medical UniversitySuzhou 215002, Jiangsu, China
| | - Jianfang Cao
- Department of Anesthesiology and Critical Care, The Second Affiliated Hospital of Soochow UniversitySuzhou 215002, Jiangsu, China
| | - Qifeng Tang
- Department of Anesthesiology, Shanghai Hechuan-Rhine TCM HospitalShanghai 201103, China
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Zhang W, Jin Y. Human immunoglobulin in combination with antimicrobial agents enhances the treatment efficacy and reduces inflammatory response in children with severe pneumonia. Am J Transl Res 2024; 16:889-896. [PMID: 38586114 PMCID: PMC10994785 DOI: 10.62347/kquw5330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 08/22/2023] [Indexed: 04/09/2024]
Abstract
OBJECTIVE To investigate the efficacy of human immunoglobulin combined with antibiotics in treating severe pediatric pneumonia. METHODS A retrospective analysis was performed on 210 pediatric patients with severe pneumonia admitted to the Department of Neonatology of Cangzhou Central Hospital from April 2019 to October 2022. Patients were divided into two groups (the observation group and the control group) based on the administration of human immunoglobulin. Clinical indexes of both groups before and after treatment were analyzed to determine the therapeutic effect of different treatment methods on pediatric severe pneumonia. RESULTS The durations of cough, fever, pulmonary rales, and lung shadow, and hospitalization time in the observation group were significantly shorter than those in the control group (all P<0.05). The total clinical effective rate in the observation group was significantly higher than that in the control group (P<0.05). Levels of inflammatory factors (IL-6, IL-8 and hsCRP) were decreased in both groups after treatment (all P<0.05), and were lower in the observation group compared with the control group after treatment (all P<0.05). The serum levels of IgA, IgG and IgM after five days of intervention were obviously higher than those before intervention in the observation group (all P<0.05), but the serum levels of IL-4, INF-γ and INF-γ/IL-4 were obviously lower (all P<0.05). The total incidence of adverse reactions between two groups after intervention was not statistically different (P<0.05). CONCLUSION The combination of human immunoglobulin and antibiotics for the treatment of pediatric severe pneumonia is beneficial, because it improves efficacy, boosts the immune system, and reduces inflammation.
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Affiliation(s)
- Wenli Zhang
- Department of Children's Emergency Medicine, Cangzhou Central Hospital Cangzhou 061000, Hebei, China
| | - Yue Jin
- Department of Neonatology, Cangzhou Central Hospital Cangzhou 061000, Hebei, China
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蔡 东, 杨 子, 钟 超, 张 靖, 洪 嵩. [miR-515-5p targeting Toll-like receptor 4 regulates myeloid differentiation primary response gene 88/nuclear factor-kappa B pathway to inhibit apoptosis and inflammatory response of osteoarthritis chondrocytes]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2024; 38:315-323. [PMID: 38500425 PMCID: PMC10982029 DOI: 10.7507/1002-1892.202312091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/01/2024] [Indexed: 03/20/2024]
Abstract
Objective To explore the molecular mechanism of miR-515-5p in inhibiting chondrocyte apoptosis and alleviating inflammatory response in osteoarthritis (OA). Methods Human cartilage cell line C28/I2 was cultured in vitro and treated with 10 ng/mL interleukin 1β (IL-1β) for 24 hours to construct an in vitro OA model. C28/I2 cells were transfected with miR mimics, mimics negative control (NC), over expression (oe)-NC, and oe-Toll-like receptor 4 (TLR4), respectively, and then treated with 10 ng/mL IL-1β for 24 hours to establish OA model. Cell proliferation capacity was detected by cell counting kit 8 and 5-Ethynyl-2'-deoxyuridine, cell apoptosis and cell cycle were detected by flow cytometry, and B-cell lymphoma 2 protion (Bcl-2), Bcl-2-associated X protein (Bax), cleaved-Caspase-3, TLR4, myeloid differentiation primary response gene 88 (MyD88), p65 and phosphorylated p65 (p-p65) protein expression levels were detected by Western blot. Real-time fluorescence quantitative PCR was used to detect mRNA expression levels of miR-515-5p and TLR4, and ELISA was used to detect pro-inflammatory factor prostaglandin E2 (PGE2), tumor necrosis factor α (TNF -α), and IL-6 levels in cell supernatant. The potential binding sites between miR-515-5p and TLR4 were predicted by BiBiServ2 database, and the targeting relationship between miR-515-5p and TLR4 was verified by dual luciferase reporting assay. Results After the treatment of C28/I2 cells with IL-1β, the expressions of miR-515-5p and Bcl-2 protein and the proliferation ability of C28/I2 cells significantly reduced. The expression levels of Bax and cleaved-Caspase-3 protein, the levels of pro-inflammatory factors (PGE2, TNF-α, IL-6) in the supernatant of C28/I2 cells, and the apoptosis of C28/I2 cells significantly increased. In addition, the proportion of the cells at S phase and G 2 phase decreased significantly, and the proportion of cells at G 1 phase increased significantly, suggesting that the cell cycle was blocked after IL-1β treatment. After transfection with miR mimics, the expression level of miR-515-5p in the cells significantly up-regulated, partially reversing the apoptosis of OA chondrocytes induced by IL-1β, and alleviating the cycle arrest and inflammatory response of OA chondrocytes. After treating C28/I2 cells with IL-1β, the mRNA and protein levels of TLR4 significantly increased. Overexpression of miR-515-5p targeted inhibition of TLR4 expression and blocked activation of MyD88/nuclear factor κB (NF-κB) pathway. Overexpression of TLR4 could partially reverse the effect of miR mimics on IL-1β-induced apoptosis and inflammation of OA chondrocytes. Conclusion miR-515-5p negatively regulates the expression of TLR4, inhibits the activation of MyD88/NF-κB pathway and apoptosis of OA chondrocytes, and effectively alleviates the inflammatory response of the cells.
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Affiliation(s)
- 东峰 蔡
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
| | - 子肖 杨
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
| | - 超 钟
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
| | - 靖 张
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
| | - 嵩 洪
- 遵义医科大学附属医院骨科(贵州遵义 563000)Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563000, P. R. China
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Ye D, Zhang Y, Zhang B, Liu J, Wei T, Lu S. The regulatory role of m 6A methylation modification in metabolic syndrome pathogenesis and progression. Front Physiol 2024; 15:1271874. [PMID: 38562618 PMCID: PMC10984216 DOI: 10.3389/fphys.2024.1271874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
Metabolic syndromes are characterized by various complications caused by disrupted glucose and lipid metabolism, which are major factors affecting the health of a population. However, existing diagnostic and treatment strategies have limitations, such as the lack of early diagnostic and therapeutic approaches, variability in patient responses to treatment, and cost-effectiveness. Therefore, developing alternative solutions for metabolic syndromes is crucial. N6-methyladenosine (m6A) is one of the most abundant modifications that determine the fate of RNA. m6A modifications are closely associated with metabolic syndrome development and present novel prospects for clinical applications. Aberrant m6A modifications have been detected during inflammatory infiltration, apoptosis, autophagy, iron sagging, necrosis, and scorching during metabolic syndrome pathogenesis and progression. However, few reviews have systematically described the correlation between m6A modifications and these factors concerning metabolic syndrome pathogenesis and progression. This study summarizes the m6A methylation regulators and their roles in metabolic syndrome development, highlighting the potential of m6A modification as a biomarker in metabolic disorders.
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Affiliation(s)
- Diwen Ye
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Yongjiao Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Bingyang Zhang
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Junjun Liu
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Tianshu Wei
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Sumei Lu
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
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Yang G, Kantapan J, Mazhar M, Hu Q, Bai X, Zou Y, Wang H, Yang S, Wang L, Dechsupa N. Pretreated MSCs with IronQ Transplantation Attenuate Microglia Neuroinflammation via the cGAS-STING Signaling Pathway. J Inflamm Res 2024; 17:1643-1658. [PMID: 38504697 PMCID: PMC10949311 DOI: 10.2147/jir.s449579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/29/2024] [Indexed: 03/21/2024] Open
Abstract
Background Intracerebral hemorrhage (ICH), a devastating form of stroke, is characterized by elevated morbidity and mortality rates. Neuroinflammation is a common occurrence following ICH. Mesenchymal stem cells (MSCs) have exhibited potential in treating brain diseases due to their anti-inflammatory properties. However, the therapeutic efficacy of MSCs is limited by the intense inflammatory response at the transplantation site in ICH. Hence, enhancing the function of transplanted MSCs holds considerable promise as a therapeutic strategy for ICH. Notably, the iron-quercetin complex (IronQ), a metal-quercetin complex synthesized through coordination chemistry, has garnered significant attention for its biomedical applications. In our previous studies, we have observed that IronQ exerts stimulatory effects on cell growth, notably enhancing the survival and viability of peripheral blood mononuclear cells (PBMCs) and MSCs. This study aimed to evaluate the effects of pretreated MSCs with IronQ on neuroinflammation and elucidate its underlying mechanisms. Methods The ICH mice were induced by injecting the collagenase I solution into the right brain caudate nucleus. After 24 hours, the ICH mice were randomly divided into four subgroups, the model group (Model), quercetin group (Quercetin), MSCs group (MSCs), and pretreated MSCs with IronQ group (MSCs+IronQ). Neurological deficits were re-evaluated on day 3, and brain samples were collected for further analysis. TUNEL staining was performed to assess cell DNA damage, and the protein expression levels of inflammatory factors and the cGAS-STING signaling pathway were investigated and analyzed. Results Pretreated MSCs with IronQ effectively mitigate neurological deficits and reduce neuronal inflammation by modulating the microglial polarization. Moreover, the pretreated MSCs with IronQ suppress the protein expression levels of the cGAS-STING signaling pathway. Conclusion These findings suggest that pretreated MSCs with IronQ demonstrate a synergistic effect in alleviating neuroinflammation, thereby improving neurological function, which is achieved through the inhibition of the cGAS-STING signaling pathway.
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Affiliation(s)
- Guoqiang Yang
- Research Center for Integrated Chinese and Western Medicine, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Acupuncture and Rehabilitation Department, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Jiraporn Kantapan
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Maryam Mazhar
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - Qiongdan Hu
- Research Center for Integrated Chinese and Western Medicine, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, People’s Republic of China
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Xue Bai
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, People’s Republic of China
- Department of Neurology and National Traditional Chinese Medicine Clinical Research Base, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Yuanxia Zou
- Research Center for Integrated Chinese and Western Medicine, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Honglian Wang
- Research Center for Integrated Chinese and Western Medicine, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Sijin Yang
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - Li Wang
- Research Center for Integrated Chinese and Western Medicine, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - Nathupakorn Dechsupa
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
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Yuan J, Wang Y, Gao J, Zhang X, Xing J. Eicosapentaenoic Acid Alleviates Inflammatory Response and Insulin Resistance in Pregnant Mice With Gestational Diabetes Mellitus. Physiol Res 2024; 73:57-68. [PMID: 38466005 PMCID: PMC11019622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 09/13/2023] [Indexed: 03/12/2024] Open
Abstract
This study investigated the effect of eicosapentaenoic acid (EPA) on insulin resistance in pregnant mice with gestational diabetes mellitus (GDM) and underlying mechanism. C57BL/6 mice fed with a high-fat diet for 4 weeks and the newly gestated were selected and injected with streptozotocin for GDM modeling. We demonstrated that the fasting insulin levels (FINS) and insulin sensitivity index (ISI) in serum and blood glucose level were significantly higher in GDM group than in normal control (NC) group. The low or high dose of EPA intervention reduced these levels, and the effect of high dose intervention was more significant. The area under the curve in GDM group was higher than that of NC group, and then gradually decreased after low or high dose of EPA treatment. The serum levels of TC, TG and LDL were increased in GDM group, while decreased in EPA group. GDM induced down-regulation of HDL level, and the low or high dose of EPA gradually increased this level. The levels of p-AKT2Ser, p-IRS-1Tyr, GLUT4, and ratios of pIRS-1Tyr/IRS-1 and pAKT2Ser/AKT2 in gastrocnemius muscle were reduced in GDM group, while low or high dose of EPA progressively increased these alterations. GDM enhanced TLR4, NF-kappaB p65, IL-1beta, IL-6 and TNF-alpha levels in placental tissues, and these expressions were declined at different dose of EPA, and the decrease was greater at high dose. We concluded that EPA receded the release of inflammatory factors in the placental tissues by inhibiting the activation of TLR4 signaling, thereby alleviating the IR.
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Affiliation(s)
- J Yuan
- Department of Obstetrics and Gynecology, North China University of Science and Technology Affiliated Hospital, Lubei District, Tangshan, Hebei, People's Republic of China.
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Kuang L, You Y, Qi J, Chen J, Zhou X, Ji S, Cheng J, Kwan HY, Jiang P, Sun X, Su M, Wang M, Chen W, Luo R, Zhao X, Zhou L. Qi-dan-dihuang decoction ameliorates renal fibrosis in diabetic rats via p38MAPK/AKT/mTOR signaling pathway. Environ Toxicol 2024. [PMID: 38456329 DOI: 10.1002/tox.24179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/25/2023] [Accepted: 01/06/2024] [Indexed: 03/09/2024]
Abstract
CONTEXT Qi-dan-dihuang decoction (QDD) has been used to treat diabetic kidney disease (DKD), but the underlying mechanisms are poorly understood. OBJECTIVE This study reveals the mechanism by which QDD ameliorates DKD. MATERIALS AND METHODS The compounds in QDD were identified by high-performance liquid chromatography and quadrupole-time-of-flight tandem mass spectrometry (HPLC-Q-TOF-MS). Key targets and signaling pathways were screened through bioinformatics. Nondiabetic Lepr db/m mice were used as control group, while Lepr db/db mice were divided into model group, dapagliflozin group, 1% QDD-low (QDD-L), and 2% QDD-high (QDD-H) group. After 12 weeks of administration, 24 h urinary protein, serum creatinine, and blood urea nitrogen levels were detected. Kidney tissues damage and fibrosis were evaluated by pathological staining. In addition, 30 mmol/L glucose-treated HK-2 and NRK-52E cells to induce DKD model. Cell activity and migration capacity as well as protein expression levels were evaluated. RESULTS A total of 46 key target genes were identified. Functional enrichment analyses showed that key target genes were significantly enriched in the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) and mitogen-activated protein kinase (MAPK) signaling pathways. In addition, in vivo and in vitro experiments confirmed that QDD ameliorated renal fibrosis in diabetic mice by resolving inflammation and inhibiting the epithelial-mesenchymal transition (EMT) via the p38MAPK and AKT-mammalian target of rapamycin (mTOR) pathways. DISCUSSION AND CONCLUSION QDD inhibits EMT and the inflammatory response through the p38MAPK and AKT/mTOR signaling pathways, thereby playing a protective role in renal fibrosis in DKD.
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Affiliation(s)
- Liuyan Kuang
- Endocrinology Department, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- School of Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Yanting You
- Endocrinology Department, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- School of Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
- Taishan People's Hospital, Postdoctoral Innovation Practice Base of Southern Medical University, Taishan, Guangdong, China
| | - Jieying Qi
- School of Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Jieyu Chen
- School of Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Xinghong Zhou
- School of Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Shuai Ji
- School of Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Jingru Cheng
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hiu Yee Kwan
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Pingping Jiang
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiaomin Sun
- School of Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Mengting Su
- Cellular and Molecular Diagnostics Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ming Wang
- Department of Traditional Chinese Medicine, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Wenxiao Chen
- Taishan People's Hospital, Postdoctoral Innovation Practice Base of Southern Medical University, Taishan, Guangdong, China
| | - Ren Luo
- School of Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaoshan Zhao
- School of Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Lin Zhou
- Endocrinology Department, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Zhao D, Zhao H, He Y, Zhang M. BMSC Alleviates Dry Eye by Inhibiting the ROS-NLRP3-IL-1β Signaling Axis by Reducing Inflammation Levels. Curr Eye Res 2024:1-10. [PMID: 38450655 DOI: 10.1080/02713683.2024.2324434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 02/24/2024] [Indexed: 03/08/2024]
Abstract
PURPOSE Bone marrow mesenchymal stem cells (BMSC) have multiple biological functions and are widely involved in regulating inflammatory diseases, tissue repair and regeneration. However, the mechanism of their action in dry eye disease (DED) is currently unclear. The purpose of this study was to investigate the effect of BMSCs in the treatment of dry eye mice and to explore its specific therapeutic mechanism. METHODS Mouse corneal epithelial cells (MCECs) were treated with 500 mOsM sodium chloride hypertonic solution to induce a DED cell model. The dry eye animal model was constructed by adding 5 μL 0.2% benzalkonium chloride solution to mouse eyes. Western blotting was used to detect the expression of related proteins, and flow cytometry, enzyme-linked immunosorbent assay (ELISA), terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) staining, hematoxylin-eosin (HE) staining, and periodic acid schiff (PAS) staining were used to detect cell and eye tissue damage. RESULTS The experimental results showed that BMSCs can reduce the levels of reactive oxygen species (ROS) and inflammatory factors in MCECs, promote cell proliferation, inhibit cell apoptosis, improve the integrity of the corneal epithelial layer in vivo, promote an increase in the number of goblet cells, and alleviate DED. Further exploration of the molecular mechanism of BMSCs treatment revealed that BMSCs alleviate the progression of DED by inhibiting the ROS-NLRP3-IL-1β signaling pathway. CONCLUSION BMSCs inhibit ROS-NLRP3-IL-1β signaling axis, reducing inflammation levels and alleviating dry eye symptoms. These findings provide new ideas and a basis for the treatment of DED and provide an experimental basis for further research on the application value of BMSCs in alleviating DED.
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Affiliation(s)
- Dandan Zhao
- Ophthalmology Department, Yan'An Hospital of Kunming City, Kunming, China
| | - Hongxia Zhao
- Ophthalmology Department, Yan'An Hospital of Kunming City, Kunming, China
| | - Yang He
- Ophthalmology Department, Yan'An Hospital of Kunming City, Kunming, China
| | - Meixia Zhang
- Ophthalmology Department, West China Hospital of Sichuan University, Chengdu, China
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Huang P, Xiang T, Wang Q, Han L, Zheng S, Zhang D, Huang F, Duan B, Li J, Li H, Huang T. Protective effect of Xixin-Ganjiang herb pair for warming the lungs to dissolve phlegm in chronic obstructive pulmonary disease rats based on integrated network pharmacology and metabolomics. Biomed Chromatogr 2024:e5851. [PMID: 38449348 DOI: 10.1002/bmc.5851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/21/2024] [Accepted: 02/03/2024] [Indexed: 03/08/2024]
Abstract
Xixin-Ganjiang herb pair (XGHP) is a classic combination for warming the lungs to dissolve phlegm and is often used to treat a variety of chronic lung diseases; it can treat the syndrome of cold phlegm obstruction of lungs. First, ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was used to examine the composition of XGHP, and network pharmacology was used to predict its potential core targets and signaling pathways in the current study. Second, a rat model of chronic obstructive pulmonary disease (COPD) was established for assessing the anti-COPD activity of XGHP, and metabolomics was used to explore the biomarkers and metabolic pathways. Finally, the sample was validated using molecular docking and Western blotting. The integration of metabolomics and network pharmacology results identified 11 targets, 3 biomarkers, 3 pathways, and 2 metabolic pathways. Western blotting showed that XGHP effectively regulated the expression of core proteins via multiple signaling pathways (downregulation of toll-like receptor 4 [TLR4] and upregulation of serine/threonine-protein kinase 1 [p-AKT1] and nitric oxide synthase 3 [NOS3]). Molecular docking results showed that the 10 potentially active components of XGHP have good affinity with tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), matrix metalloproteinase 9 (MMP-9), TLR4, p-AKT1, and NOS3. Our findings suggest that XGHP may regulate glucolipid metabolism, improve energy supply, and inhibit inflammatory responses (TNF-α, IL-6, and MMP-9) via the PI3K-Akt signaling pathway and HIF-1 signaling pathway in the management of COPD.
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Affiliation(s)
- Ping Huang
- Department of Rehabilitation Medicine, General Hospital of Central Theater Command, Wuhan, China
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Ting Xiang
- Department of Rehabilitation Medicine, General Hospital of Central Theater Command, Wuhan, China
| | - Qiong Wang
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Lintao Han
- Pharmacy School, Hubei University of Chinese Medicine, Wuhan, China
- Key Laboratory of Traditional Chinese Medicine Resource and Prescription, Ministry of Education, Wuhan, China
| | - Sili Zheng
- Pharmacy School, Hubei University of Chinese Medicine, Wuhan, China
| | - Dongning Zhang
- Pharmacy School, Hubei University of Chinese Medicine, Wuhan, China
| | - Fang Huang
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Bailu Duan
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Jingjing Li
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Huamao Li
- Department of Rehabilitation Medicine, General Hospital of Central Theater Command, Wuhan, China
| | - Tao Huang
- Department of Orthopedics, Wuhan Red Cross Hospital, Wuhan, China
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Laky M, Arslan M, Zhu X, Rausch-Fan X, Moritz A, Sculean A, Laky B, Ramseier CA, Stähli A, Eick S. Quercetin in the Prevention of Induced Periodontal Disease in Animal Models: A Systematic Review and Meta-Analysis. Nutrients 2024; 16:735. [PMID: 38474862 DOI: 10.3390/nu16050735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 02/23/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Periodontitis is an inflammatory condition initiated by oral bacteria and is associated with several systemic diseases. Quercetin is an anti-inflammatory and anti-bacterial poly-phenol present in various foods. The aim of this meta-analysis was the evaluation of the effects of quercetin administration in animal models of experimental periodontitis. METHODS A systematic search was performed in electronic databases using the following search terms: "periodontitis" or "periodontal disease" or "gingivitis" and "quercetin" or "cyanidanol" or "sophoretin" or "pentahydroxyflavone". In vivo preclinical animal models of experimental periodontal disease with a measurement of alveolar bone loss were included in the analysis. The risk of bias of the included studies was assessed using the SYRCLE tool. RESULTS The systematic search yielded 335 results. Five studies were included, four of them qualified for a meta-analysis. The meta-analysis showed that quercetin administration decreased alveolar bone loss (τ2 = 0.31, 1.88 mm 95%CI: 1.09, 2.67) in experimental periodontal disease animal models. However, the risk of bias assessment indicated that four SYRCLE domains had a high risk of bias. CONCLUSIONS Quercetin diminishes periodontal bone loss and prevents disease progression in animal models of experimental periodontal disease. Quercetin might facilitate periodontal tissue hemostasis by reducing senescent cells, decreasing oxidative stress via SIRT1-induced autophagy, limiting inflammation, and fostering an oral bacterial microenvironment of symbiotic microbiota associated with oral health. Future research will show whether and how the promising preclinical results can be translated into the clinical treatment of periodontal disease.
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Affiliation(s)
- Markus Laky
- Division of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
| | - Muazzez Arslan
- Division of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Xilei Zhu
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
| | - Xiaohui Rausch-Fan
- Division of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Center of Clinical Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Andreas Moritz
- Division of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
| | - Brenda Laky
- Center of Clinical Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Austrian Research Group for Regenerative and Orthopedic Medicine (AURROM), 1050 Vienna, Austria
- Austrian Society of Regenerative Medicine, 1010 Vienna, Austria
| | - Christoph A Ramseier
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
| | - Alexandra Stähli
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
| | - Sigrun Eick
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
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Hu Q, Zhang X, Peng H, Guan J, Huang Z, Jiang B, Sun D. A New Modulator of Neuroinflammation in Diabetic Retinopathy: USP25. Inflammation 2024:10.1007/s10753-024-01991-x. [PMID: 38436811 DOI: 10.1007/s10753-024-01991-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 03/05/2024]
Abstract
Diabetic retinopathy (DR) is a diabetes-associated complication that poses a threat to vision, distinguished by persistent and mild inflammation of the retinal microvasculature. The activation of microglia plays a crucial role in driving this pathological progression. Previous investigations have demonstrated that ubiquitin-specific peptidase 25 (USP25), a deubiquitinating enzyme, is involved in the regulation of immune cell activity. Nevertheless, the precise mechanisms through which USP25 contributes to the development of DR remain incompletely elucidated. Firstly, we have demonstrated the potential mechanism by which ROCKs can facilitate microglial activation and augment the synthesis of inflammatory mediators through the modulation of NF-κB signaling pathways in a high-glucose milieu. Furthermore, our study has provided novel insights by demonstrating that the regulatory role of USP25 in the secretion of proinflammatory factors is mediated through the involvement of ROCK in modulating the expression of NF-κB and facilitating the nuclear translocation of the phosphatase NF-κB. This regulatory mechanism plays a crucial role in modulating the activation of microglial cells within a high-glycemic environment. Hence, USP25 emerges as a pivotal determinant for the inflammatory activation of microglial cells, and its inhibition exhibits a dual effect of promoting retinal neuron survival while suppressing the inflammatory response in the retina. In conclusion, the promotion of diabetic retinopathy (DR) progression by USP25 is attributed to its facilitation of microglial activation induced by high glucose levels, a process mediated by the ROCK pathway. These findings highlight the importance of considering USP25 as a potential therapeutic target for the management of diabetic neuroinflammation.
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Affiliation(s)
- Qiang Hu
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, 157 Baojian Road, Harbin, 150086, China
- Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xue Zhang
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, 157 Baojian Road, Harbin, 150086, China
- Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongsong Peng
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, 157 Baojian Road, Harbin, 150086, China
- Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jitian Guan
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, 157 Baojian Road, Harbin, 150086, China
- Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhangxin Huang
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, 157 Baojian Road, Harbin, 150086, China
- Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bo Jiang
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, 157 Baojian Road, Harbin, 150086, China
| | - Dawei Sun
- Department of Ophthalmology, The Second Affiliated Hospital of Harbin Medical University, 157 Baojian Road, Harbin, 150086, China.
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Meng Z, Wang Y, Kong X, Cen M, Duan Z. Chicken speckle-type POZ protein (SPOP) negatively regulates MyD88/NF-κB signaling pathway mediated proinflammatory cytokine production to promote the replication of Newcastle disease virus. Poult Sci 2024; 103:103461. [PMID: 38290339 PMCID: PMC10844869 DOI: 10.1016/j.psj.2024.103461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 02/01/2024] Open
Abstract
The speckle-type POZ protein (SPOP) is demonstrated to be a specific adaptor of the cullin-RING-based E3 ubiquitin ligase complex that participates in multiple cellular processes. Up to now, SPOP involved in inflammatory response has attracted more attention, but the association of SPOP with animal virus infection is scarcely reported. In this study, chicken MyD88 (chMyD88), an innate immunity-associated protein, was screened to be an interacting partner of chSPOP using co-immunoprecipitation (Co-IP) combined with liquid chromatography-tandem mass spectrometry methods. This interaction was further confirmed by fluorescence co-localization, Co-IP, and pull-down assays. It was interesting that exogenous recombinant protein HA-chSPOP or endogenous chSPOP alone was mainly located in the nucleus but was translocated to the cytoplasm upon co-expression with chMyD88 or lipopolysaccharide stimulation. In addition, chSPOP reduced chMyD88 expression by ubiquitination in a dose-dependent manner, and the regulation of NF-κB activity by chSPOP was dependent solely on chMyD88. Importantly, chSPOP played a negative regulatory role in the MyD88/NF-κB signaling pathway and the production of proinflammatory cytokines. Moreover, we found that velogenic Newcastle disease virus (NDV) infection changed the subcellular localization of chSPOP and the expression patterns of chSPOP and chMyD88, and overexpression of chSPOP decreased the production of proinflammatory cytokines to enhance velogenic and lentogenic NDV replication, while siRNA-mediated chSPOP knockdown obtained the opposite results, thereby indicating that chSPOP negatively regulated MyD88/NF-κB signaling pathway mediated proinflammatory cytokine production to promote NDV replication. These findings highlight the important role of the SPOP/MyD88/NF-κB signaling pathway in NDV replication and may provide insightful information about NDV pathogenesis.
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Affiliation(s)
- Zhongming Meng
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Yanbi Wang
- College of Animal Science, Guizhou University, Guiyang 550025, China; Key Laboratory of Animal Genetics, Breeding and Reproduction in The Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Xianya Kong
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Mona Cen
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Zhiqiang Duan
- College of Animal Science, Guizhou University, Guiyang 550025, China; Key Laboratory of Animal Genetics, Breeding and Reproduction in The Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China.
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Hasan M, Joslin S, Chemaly M, Liang B. Anonic Silicon Hydrogels Affect the Concentration of Proteins in Tears during Wear. Curr Eye Res 2024; 49:242-251. [PMID: 38146606 DOI: 10.1080/02713683.2023.2294702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 12/03/2023] [Indexed: 12/27/2023]
Abstract
PURPOSE The objective of this study was to quantitatively assess the concentration of human tear proteins in patients wearing contact lenses of various ionicities and determine whether differences were related to the incidence of corneal infiltrative events (CIE). METHODS 24 subjects (samples) were randomly selected for spectral count analysis to obtain protein concentrations using LCMS analysis. The subjects were neophyte and ametropic with ages between 18 and 40; 6 wore control lenses, 8 wore TestLens1, and 10 wore TestLens2. 16 subjects experienced CIEs during the study. RESULTS A pairwise multiple hypothesis test identified 7 proteins that significantly differed in concentration between TestLens1 and control, and 11 proteins that differed between TestLens2 and control. Of the 12 unique proteins, 9 were at increased concentration and 3 were at lower concentration in the tears of test lens wearers compared to the control lens group. Bootstrap clustering confirmed these findings, showing 3 similar clusters to the original sample groups which separated people wearing control lenses from those wearing TestLens1 or TestLens2 with 83% accuracy and between TestLens1 and TestLens2 with 45% accuracy. Permutation testing identified 5 proteins that had significantly changed in concentration between people wearing TestLens2 and Control lenses. There was no difference in protein concentrations between those subjects who experienced a CIE and those who did not. CONCLUSION Wearing contact lenses of different ionicities can affect the concentration of proteins in the tear film. The current study did not find any associations of the concentration of proteins with CIEs. Future tests with increased sample size are needed to establish any relations between these changes and clinical performance.
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Chakraborty C, Bhattacharya M, Lee SS. Regulatory role of miRNAs in the human immune and inflammatory response during the infection of SARS-CoV-2 and other respiratory viruses: A comprehensive review. Rev Med Virol 2024; 34:e2526. [PMID: 38446531 DOI: 10.1002/rmv.2526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/11/2024] [Accepted: 02/22/2024] [Indexed: 03/07/2024]
Abstract
miRNAs are single-stranded ncRNAs that act as regulators of different human body processes. Several miRNAs have been noted to control the human immune and inflammatory response during severe acute respiratory infection syndrome (SARS-CoV-2) infection. Similarly, many miRNAs were upregulated and downregulated during different respiratory virus infections. Here, an attempt has been made to capture the regulatory role of miRNAs in the human immune and inflammatory response during the infection of SARS-CoV-2 and other respiratory viruses. Firstly, the role of miRNAs has been depicted in the human immune and inflammatory response during the infection of SARS-CoV-2. In this direction, several significant points have been discussed about SARS-CoV-2 infection, such as the role of miRNAs in human innate immune response; miRNAs and its regulation of granulocytes; the role of miRNAs in macrophage activation and polarisation; miRNAs and neutrophil extracellular trap formation; miRNA-related inflammatory response; and miRNAs association in adaptive immunity. Secondly, the miRNAs landscape has been depicted during human respiratory virus infections such as human coronavirus, respiratory syncytial virus, influenza virus, rhinovirus, and human metapneumovirus. The article will provide more understanding of the miRNA-controlled mechanism of the immune and inflammatory response during COVID-19, which will help more therapeutics discoveries to fight against the future pandemic.
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Affiliation(s)
- Chiranjib Chakraborty
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal, India
| | | | - Sang-Soo Lee
- Institute for Skeletal Aging & Orthopaedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Gangwon-do, Republic of Korea
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Liu X, Wang Y, Wen X, Hao C, Ma J, Yan L. Platelet rich plasma alleviates endometritis induced by lipopolysaccharide in mice via inhibiting TLR4/NF-κB signaling pathway. Am J Reprod Immunol 2024; 91:e13833. [PMID: 38467595 DOI: 10.1111/aji.13833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/30/2024] [Accepted: 02/21/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND Endometritis is an inflammatory reaction of the lining of uterus, leading to the occurrence of infertility. Platelet rich plasma (PRP) has been proven to exhibit extremely effective for the treatment of endometrium-associated infertility, but the mechanism of its prevention for endometritis remains unclear. OBJECTIVE The present study aimed to investigate the protective effect of PRP against endometritis induced by lipopolysaccharide (LPS) and elucidate the mechanism underlying these effects. METHODS Mouse model of endometritis was established by intrauterine perfusion of LPS. PRP intrauterine infusion was administered at 24 h after LPS induction. After another 24 h, the uterine tissues were harvested to observe histopathological changes, production of proinflammatory cytokines, variation of the Toll-like receptor 4/nuclear factor κB (TLR4/NF-κB) signaling pathways, and validated the anti-inflammatory effect of PRP. The myeloperoxidase (MPO) activity and concentration of nitric oxide (NO) were determined using assay kit. Proinflammatory chemokines (tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6)) were measured by ELISA and Real-Time PCR. The activity of TLR4/NF-κB pathway in uterine tissues was measured by Western blotting. RESULTS Hematoxylin-eosin staining (H&E) appeared that PRP remarkably relieved the impairment of uterine tissues. Detection of MPO activity and concentration of NO revealed that PRP treatment distinctly mitigated infiltration of inflammatory cells in mice with endometritis induced by LPS. PRP treatment significantly affected the expression of TNF-α, IL-1β, and IL-6. PRP was also found to suppress LPS-induced activation of TLR4/NF-κB pathway. CONCLUSION PRP effectively alleviates LPS-induced endometritis via restraining the signal pathway of TLR4/NF-κB. These findings provide a solid foundation for PRP as a potential therapeutic agent for endometritis.
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Affiliation(s)
- Xiaoqiang Liu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
- Reproductive Medicine Center, Qingdao Women and Children's Hospital, Qingdao, Shandong, China
| | - Yuqing Wang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
| | - Xiaoyang Wen
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
| | - Cuifang Hao
- Reproductive Medicine Center, Qingdao Women and Children's Hospital, Qingdao, Shandong, China
| | - Jinlong Ma
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China
| | - Lei Yan
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 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] [What about the content of this article? (0)] [Affiliation(s)] [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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