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Yang T, Peng J, Ren R, Song L. Phenylacetylglutamine produced from injury lung alveolar epithelial cells promotes the function of BMSCs by regulating NONRATT006276.2/Mapt pathway. Respir Res 2025; 26:196. [PMID: 40413470 DOI: 10.1186/s12931-025-03261-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2025] [Accepted: 04/28/2025] [Indexed: 05/27/2025] Open
Abstract
Mesenchymal stem cell (MSC)-based therapy regenerates damaged structures of the respiratory system and restores lung function, thus providing a promising therapeutic approach for chronic obstructive pulmonary disease. Understanding the communication between injured alveolar cells and MSCs can improve the efficiency of MSC-based therapies. The present study analyzed the untargeted metabolomics of the supernatant of AEC-II injury induced by cigarette smoke extract and identified 205 differential metabolites. Phenotypic assays indicated that phenylacetylglutamine (PAG) significantly promoted the migration and mitochondrial function of bone marrow MSCs (BMSCs). Whole-transcriptome sequencing (WT-seq) was used to analyze the long noncoding RNA (lncRNA) and mRNA expression profiles of BMSCs treated with PAG. The upregulated lncNRA NONRATT006276.2 (NRT6276.2) and its trans-regulated gene, microtubule-associated protein tau (Mapt), were identified based on the lncRNA-mRNA co-expression network and bioinformatics analysis. The knockdown of NRT6276.2 or Mapt inhibited the positive effects of PAG on BMSCs. Furthermore, Mapt overexpression reversed the phenotype of BMSCs inhibited by silencing NRT6276.2. In conclusion, PAG enhanced the migration and mitochondrial function of BMSCs by regulating the NRT6276.2/Mapt pathway. This study clarified the positive effects of PAG produced by injured lung cells on transplanted MSCs, providing a potential new strategy to enhance the efficiency of MSC-based therapies.
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Affiliation(s)
- Tianyun Yang
- Department of Respiratory Medicine, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200090, People's Republic of China
| | - Juan Peng
- Department of Respiratory Medicine, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200090, People's Republic of China
| | - Rongrong Ren
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200090, People's Republic of China.
| | - Lin Song
- Department of Respiratory Medicine, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200090, People's Republic of China.
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Azhar Ud Din M, Lin Y, Lyu C, Yi C, Fang A, Mao F. Advancing therapeutic strategies for graft-versus-host disease by targeting gut microbiome dynamics in allogeneic hematopoietic stem cell transplantation: current evidence and future directions. Mol Med 2025; 31:2. [PMID: 39754054 PMCID: PMC11699782 DOI: 10.1186/s10020-024-01060-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2024] [Accepted: 12/27/2024] [Indexed: 01/06/2025] Open
Abstract
Hematopoietic stem cell transplantation (HSCT) is a highly effective therapy for malignant blood illnesses that pose a high risk, as well as diseases that are at risk due to other variables, such as genetics. However, the prevalence of graft-versus-host disease (GVHD) has impeded its widespread use. Ensuring the stability of microbial varieties and associated metabolites is crucial for supporting metabolic processes, preventing pathogen intrusion, and modulating the immune system. Consequently, it significantly affects the overall well-being and susceptibility of the host to disease. Patients undergoing allogeneic hematopoietic stem cell transplantation (allo-HSCT) may experience a disruption in the balance between the immune system and gut bacteria when treated with medicines and foreign cells. This can lead to secondary intestinal inflammation and GVHD. Thus, GM is both a reliable indicator of post-transplant mortality and a means of enhancing GVHD prevention and treatment after allo-HSCT. This can be achieved through various strategies, including nutritional support, probiotics, selective use of antibiotics, and fecal microbiota transplantation (FMT) to target gut microbes. This review examines research advancements and the practical use of intestinal bacteria in GVHD following allo-HSCT. These findings may offer novel insights into the prevention and treatment of GVHD after allo-HSCT.
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Affiliation(s)
- Muhammad Azhar Ud Din
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, No. 8 Dianli Road, Zhenjiang, 212002, Jiangsu, People's Republic of China
- Institute of Hematology, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Yan Lin
- The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Zhenjiang, 212399, Jiangsu, People's Republic of China
| | - Changkun Lyu
- School of Medical Technology, Shangqiu Medical College Shangqiu, Shangqiu, 476100, Henan, People's Republic of China
| | - Chengxue Yi
- School of Medical Technology, Zhenjiang College, Zhenjiang, 212028, Jiangsu, People's Republic of China
| | - Anning Fang
- Basic Medical School, Anhui Medical College, 632 Furong Road, Economic and Technological Development Zone, Hefei, 230061, Anhui, People's Republic of China.
| | - Fei Mao
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, No. 8 Dianli Road, Zhenjiang, 212002, Jiangsu, People's Republic of China.
- Institute of Hematology, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China.
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Xue X, Sun Z, Ji X, Lin H, Jing H, Yu Q. Associations between serum uric acid and breast cancer incidence: A systematic review and meta-analysis. Am J Med Sci 2024; 368:610-620. [PMID: 38986907 DOI: 10.1016/j.amjms.2024.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 04/27/2024] [Accepted: 07/01/2024] [Indexed: 07/12/2024]
Abstract
BACKGROUND Serum uric acid (SUA) may be involved in the development of cancer by inhibiting oxidative stress, but its relationship with breast cancer remains unclear. MATERIALS AND METHODS The PubMed, Embase, and Web of Science databases were searched systematically for studies on SUA levels in women with breast cancer and the effect of SUA levels on the risk of breast cancer. The Newcastle‒Ottawa Quality Assessment Scale (NOS) was used to assess the quality of all relevant studies included. RESULTS A total of 19 studies were included, including 75,827 women with breast cancer and 508,528 healthy controls. A meta-analysis found that SUA levels were negatively correlated with breast cancer risk in women (HR = 0.94, 95% CI: 0.89 - 0.99, p = 0.003). SUA levels in female breast cancer patients were not significantly different from those in healthy controls (SMD = 0.49, 95% CI = -0.09 - 1.08, p = 0.10), while SUA levels were increased in female breast cancer patients in articles published after 2010, SUA concentration detected by spectrophotometry, and non-Asian populations, regardless of menopausal state and treatment state. CONCLUSION High levels of SUA may reduce the risk of breast cancer in women, suggesting that SUA was a protective factor in women.
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Affiliation(s)
- Xiao Xue
- Department of Laboratory Medicine, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, PR China
| | - Zhengyi Sun
- Department of Laboratory Medicine, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, PR China
| | - Xufeng Ji
- Department of Laboratory Medicine, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, PR China.
| | - Hua Lin
- Department of Laboratory Medicine, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, PR China.
| | - Huang Jing
- Department of Laboratory Medicine, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, PR China.
| | - Qiuyang Yu
- Department of Laboratory Medicine, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, PR China.
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Zhao H, Li H, Zheng J, Yan H, Lu J, Liu H, Hao H, Dou J, Li Y, Wang S. Cd-MOF and Its Ln 3+-Post Modification Products: Regulation of Luminescence Properties and Improved Detection of Uric Acid, Quinine, and Quinidine. Inorg Chem 2024; 63:1962-1973. [PMID: 38236237 DOI: 10.1021/acs.inorgchem.3c03661] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
One 3D Cd-MOF, namely, {[(HDMA)2][Cd3(L)2]·5H2O·2DMF}n (LCU-124, LCU indicates Liaocheng University), was synthesized from an ether-containing ligand 1,3-bis(3,5-dicarboxylphenoxy)benzene (H4L). Its Ln3+-postmodified samples, Eu3+@LCU-124 and Tb3+@LCU-124, were obtained through cation exchange of dimethylamine cation (HDMA) with Eu3+ and Tb3+. The successful entry of rare earth into LCU-124 by cation exchange modification was verified by IR, XRD, XPS, EDS mapping, and luminescence spectra. The proportion of Eu3+/Tb3+ was adjusted during the modification process, leading to fluorescent materials with different emissions. Luminescence measurements indicated that these complexes exhibited interesting multiresponsive sensing activities toward biomarkers urine acid (UA), quinine (QN), and quinidine (QND). First, LCU-124 has a pronounced quenching effect toward UA with the detection limit of 31.01 μM. After modification, the visualization of the detection was improved significantly and the detection limit of Eu3+@LCU-124 was reduced to 0.868 μM. Second, when QN and QND were present in the suspensions of Eu3+@LCU-124 and Tb3+@LCU-124, strong blue light emission peaks occurred, while the characteristic emission of Eu3+/Tb3+ decreased, forming ratiometric fluorescent sensors with the detection limit in the range of 0.199-9.49 μM. The fluorescent probes have high selectivity, excellent sensitivity recycling, and fast response time (less than 1 min). Besides, a simple logic gate circuit and a range of luminescent mixed matrix membranes were designed to provide simple and fast detection of above biomarkers. Our work indicated that modification of Eu3+/Tb3+ could improve the detection ability significantly.
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Affiliation(s)
- Hengyi Zhao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Hongjian Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Jun Zheng
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Hui Yan
- School of Pharmacy, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Jing Lu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Houting Liu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Hongguo Hao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Jianmin Dou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Yunwu Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
| | - Suna Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
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Immunosenescence, Inflammaging, and Lung Senescence in Asthma in the Elderly. Biomolecules 2022; 12:biom12101456. [PMID: 36291665 PMCID: PMC9599177 DOI: 10.3390/biom12101456] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/02/2022] [Accepted: 10/04/2022] [Indexed: 11/24/2022] Open
Abstract
Prevalence of asthma in older adults is growing along with increasing global life expectancy. Due to poor clinical consequences such as high mortality, advancement in understanding the pathophysiology of asthma in older patients has been sought to provide prompt treatment for them. Age-related alterations of functions in the immune system and lung parenchyma occur throughout life. Alterations with advancing age are promoted by various stimuli, including pathobionts, fungi, viruses, pollutants, and damage-associated molecular patterns derived from impaired cells, abandoned cell debris, and senescent cells. Age-related changes in the innate and adaptive immune response, termed immunosenescence, includes impairment of phagocytosis and antigen presentation, enhancement of proinflammatory mediator generation, and production of senescence-associated secretory phenotype. Immnunosenescence could promote inflammaging (chronic low-grade inflammation) and contribute to late-onset adult asthma and asthma in the elderly, along with age-related pulmonary disease, such as chronic obstructive pulmonary disease and pulmonary fibrosis, due to lung parenchyma senescence. Aged patients with asthma exhibit local and systemic type 2 and non-type 2 inflammation, associated with clinical manifestations. Here, we discuss immunosenescence’s contribution to the immune response and the combination of type 2 inflammation and inflammaging in asthma in the elderly and present an overview of age-related features in the immune system and lung structure.
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Serum Uric Acid as a Diagnostic Biomarker for Rheumatoid Arthritis-Associated Interstitial Lung Disease. Inflammation 2022; 45:1800-1814. [PMID: 35314903 PMCID: PMC9197871 DOI: 10.1007/s10753-022-01661-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/10/2022] [Accepted: 03/10/2022] [Indexed: 11/05/2022]
Abstract
Previous studies have suggested a correlation between uric acid (UA) and lung lesion in some diseases. However, it remains unknown whether UA contributes to the lung injury in rheumatoid arthritis (RA). Our study aimed to investigate the clinical value of the UA level in the severity of rheumatoid arthritis-associated interstitial lung disease (RA-ILD). We measured UA in serum and bronchoalveolar lavage fluid (BALF), and UA levels of subjects were compared. As for the role of UA on ILD, we incubated A549 cells with UA and the expression of EMT markers was measured by immunofluorescence staining. The concentrations and messenger RNA expression of IL-1, IL-6, and transforming growth factor-β (TGF-β) were measured by ELISA and RT-PCR, respectively. We observed that serum UA levels in RA were significantly higher than those in controls. And, higher UA was measured in both serum and BALF of patients with RA-ILD, particularly those with interstitial pneumonia (UIP) pattern. Additionally, the correlation of the serum and BALF UA levels with serum KL-6, a biomarker of ILDs, in RA was significant (r = 0.44, p < 0.01; r = 0.43, p < 0.01). And, the negative correlations of UA, in both serum and BALF, with forced vital capacity (r = -0.61, p < 0.01; r = -0.34, p < 0.01) and diffusing capacity for carbon monoxide (r = -0.43, p < 0.01; r = -0.30, p < 0.01) were measured in patients. In the ROC curve analysis, the AUC value of UA for RA-ILD was 0.744 (95% CI: 0.69-0.80; p < 0.01), and the AUC of serum UA for predicting UIP pattern of patients with RA-ILD was 0.845 (95% CI: 0.78-0.91; p < 0.01), which showed the significance of the UA in clinical settings. Also, the in vitro experiment showed that UA induced epithelial-to-mesenchymal transition (EMT) and production of IL-1, IL-6, and TGF-β in A549 cells. Therefore, the elevated UA levels may be a diagnostic marker in RA-ILD, particularly RA-UIP.
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Pan C, Chen Y, Wang S, Li M, Qu S. The study of routine laboratory factors in children with mycoplasma pneumoniae pneumonia: serum uric acid may have anti-inflammatory effect. J Clin Lab Anal 2021; 35:e24026. [PMID: 34655117 PMCID: PMC8605124 DOI: 10.1002/jcla.24026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 12/15/2022] Open
Abstract
Background High uric acid levels are a risk factor for cardiovascular disorders, and metabolic diseases; however, the role of serum uric acid (sUA) during the mycoplasma pneumoniae pneumonia (MPP) of children is poorly known. This study aimed to clarify the effects of sUA during the MPP of children. Methods This was a prospective cohort study of children with MPP from multi‐center inpatient departments from September 2019 to August 2020. Routine laboratory characteristics analyzed including ALT, AST, BUN, CREA, UA, LDH, CK‐MB, WBC, N%, PLT, and CRP. Subjects were divided into 3 groups: non‐MPP, mild MPP (MMPP), and severe MPP (SMPP). Results 949 subjects were enrolled, including 207 in non‐MPP, 565 in MMPP, and 177 in SMPP. The optimal cutoff value for sUA is 239 μmmol/L in receiver operating characteristic (ROC) curves analysis. Multivariate logistic regression showed that WBC and sUA had significance for protective effects between non‐MPP and SMPP, but CRP did not have significance between the two groups, N and PLT had significance for risk factors; WBC and sUA did not have significance for the protective effects between non‐MPP and MMPP, CRP had significance between the two groups, N and PLT had significance for the risk effects. Similarly, binary logistic regression showed UA, WBC, and CRP had significance for the protective effects between non‐MPP and MPP, but N and PLT had significance for the risk effects between the two groups. Conclusion Both multivariate and binary logistic regression demonstrated that sUA displayed a protective effect during the MPP of children, which meant sUA is anti‐inflammatory.
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Affiliation(s)
- Chenglin Pan
- Department of Pediatrics, School of Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Yanjie Chen
- Department of Pediatrics, School of Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Shaosheng Wang
- Department of Laboratory Medicine, Maternity Service Center of Pengzhou Maternal & Child Health Care Hospital, Chengdu, China
| | - Ming Li
- Department of Pediatrics, Hainan Maternal and Children's Medical Center, Haikou, Hainan, China
| | - Shen Qu
- Department of Endocrinology & Metabolism, School of Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
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Elmansy RA, Seleem HS, Mahmoud AR, Hassanein EHM, Ali FEM. Rebamipide potentially mitigates methotrexate-induced nephrotoxicity via inhibition of oxidative stress and inflammation: A molecular and histochemical study. Anat Rec (Hoboken) 2021; 304:647-661. [PMID: 32589351 DOI: 10.1002/ar.24482] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 03/21/2020] [Accepted: 04/03/2020] [Indexed: 12/19/2022]
Abstract
Methotrexate (MTX) is a widely used chemotherapeutic agent; nevertheless, the nephrotoxicity associated with its use has limited its clinical use. Rebamipide (REB) is a gastro-protective agent with diverse promising biological activities. Here, we investigated the renoprotective effects of REB against MTX-induced nephrotoxicity in rats. Male Wistar rats were allocated into four groups: the normal control group, the REB group (100 mg kg-1 day-1 , PO, for 12 days), the MTX group (which received a single injection of 20 mg/kg, ip), and the REB + MTX group (which received 100 mg kg-1 day-1 REB for 7 days before and 5 days after being injected with 20 mg/kg MTX). Interestingly, MTX triggered kidney injury, characterized by renal dysfunction along with histopathological alterations. Moreover, increased reactive oxygen species level and inflammatory response were detected in the kidney of MTX-treated rats. However, REB prevented MTX-induced oxidative kidney injury and boosted an antioxidant balance. Mechanistically, REB markedly activated the NRF-2 protein and upregulated the expression of both SIRT-1 and FOXO-3 genes. Additionally, REB administration strongly inhibited the inflammatory response by downregulating both NF-κB-p65 and TLR-4. Finally, the coadministration of REB and MTX activated the mTOR/PI3K/AKT signaling pathway. Simultaneously, REB treatment attenuated the reduction in glomerular size, the widening of the capsular spaces, and the tubular cell damage due to MTX administration. Taken together, these results indicate the potential of REB as adjuvant therapy to prevent nephrotoxicity in patients receiving MTX treatment.
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Affiliation(s)
- Rasha A Elmansy
- Department of Anatomy and Embryology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
- Anatomy Unit, Department of Basic Medical Sciences, Unaizah College of Medicine and Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Hanan S Seleem
- Histology Department, Faculty of Medicine, Menoufia University, Menoufia, Egypt
- Histology Unit, Department of Basic Medical Sciences, Unaizah College of Medicine and Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Amany R Mahmoud
- Anatomy Unit, Department of Basic Medical Sciences, Unaizah College of Medicine and Medical Sciences, Qassim University, Buraydah, Saudi Arabia
- Department of Human Anatomy and Embryology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Emad H M Hassanein
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Fares E M Ali
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
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Possible Mechanisms of Eosinophil Accumulation in Eosinophilic Pneumonia. Biomolecules 2020; 10:biom10040638. [PMID: 32326200 PMCID: PMC7226607 DOI: 10.3390/biom10040638] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/12/2020] [Accepted: 04/20/2020] [Indexed: 12/29/2022] Open
Abstract
Eosinophilic pneumonia (EP), including acute EP and chronic EP, is characterized by the massive pulmonary infiltration of eosinophils into the lung. However, the mechanisms underlying the selective accumulation of eosinophils in EP have not yet been fully elucidated. We reported that bronchoalveolar lavage fluid (BALF) from EP patients induced the transmigration of eosinophils across endothelial cells in vitro. The concentrations of eotaxin-2 (CCL24) and monocyte chemotactic protein (MCP)-4 (CCL13), which are CC chemokine receptor (CCR) 3 ligands, were elevated in the BALF of EP patients, and anti-CCR3 monoclonal antibody inhibited the eosinophil transmigration induced by the BALF of EP patients. The concentration of macrophage inflammatory protein 1β (CCL4), a CCR5 ligand that induces eosinophil migration, was increased in the BALF of EP patients. Furthermore, the concentration of interleukin (IL) 5 was increased in the BALF of EP patients, and it has been reported that anti-IL-5 antibody treatment resulted in remission and the reduction of glucocorticoid use in some cases of chronic EP. The concentrations of lipid mediators, such as leukotriene (LT) B4, damage-associated molecular pattern molecules (DAMPs), such as uric acid, or extracellular matrix proteins, such as periostin, were also increased in the BALF of EP patients. These findings suggest that chemokines, such as CCR3/CCR5 ligands, cytokines, such as IL-5, lipid mediators, such as LTB4, DAMPs, and extracellular matrix proteins may play roles in the accumulation or activation of eosinophils in EP.
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Yin W, Zhou QL, OuYang SX, Chen Y, Gong YT, Liang YM. Uric acid regulates NLRP3/IL-1β signaling pathway and further induces vascular endothelial cells injury in early CKD through ROS activation and K + efflux. BMC Nephrol 2019; 20:319. [PMID: 31412804 PMCID: PMC6694569 DOI: 10.1186/s12882-019-1506-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 07/31/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Chronic kidney disease (CKD) has been considered as a major health problem in the world. Increasing uric acid (UA) could induce vascular endothelial injury, which is closely related to microinflammation, oxidative stress, and disorders of lipids metabolism. However, the specific mechanism that UA induces vascular endothelial cells injury in early CKD remains unknown. METHODS Human umbilical vein endothelial cells (HUVECs) were cultured and subjected to different concentrations of UA for different periods. Early CKD rat model with elevated serum UA was established. Western blotting and quantitative real-time PCR (qPCR) were applied for measuring protein and mRNA expression of different cytokines. The animals were sacrificed and blood samples were collected for measurement of creatinine, UA, IL-1β, TNF-α, and ICAM-1. Renal tissues were pathologically examined by periodic acid-Schiff (PAS) or hematoxylin-eosin (HE) staining. RESULTS The expression of IL-1β, ICAM-1, NLRP3 complexes, and activation of NLRP3 inflammasome could be induced by UA, but the changes induced by UA were partially reversed by siRNA NLRP3 or caspase 1 inhibitor. Furthermore, we identified that UA regulated the activation of NLRP3 inflammasome by activating ROS and K+ efflux. In vivo results showed that UA caused the vascular endothelial injury by activating NLRP3/IL-1β pathway. While allopurinol could reduce UA level and may have protective effects on cardiovascular system. CONCLUSIONS UA could regulate NLRP3/IL-1β signaling pathway through ROS activation and K+ efflux and further induce vascular endothelial cells injury in early stages of CKD.
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Affiliation(s)
- Wei Yin
- Department of Nephrology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No.61, West Jiefang Road, Changsha, 410005, Hunan Province, People's Republic of China
| | - Qiao-Ling Zhou
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
| | - Sha-Xi OuYang
- Department of Nephrology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No.61, West Jiefang Road, Changsha, 410005, Hunan Province, People's Republic of China
| | - Ying Chen
- Department of Nephrology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No.61, West Jiefang Road, Changsha, 410005, Hunan Province, People's Republic of China
| | - Yu-Ting Gong
- Department of Nephrology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No.61, West Jiefang Road, Changsha, 410005, Hunan Province, People's Republic of China
| | - Yu-Mei Liang
- Department of Nephrology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, No.61, West Jiefang Road, Changsha, 410005, Hunan Province, People's Republic of China.
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11
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Nakagome K, Nakamura Y, Kobayashi T, Ohta S, Ono J, Kobayashi K, Ikebuchi K, Noguchi T, Soma T, Yamauchi K, Izuhara K, Nagata M. Elevated Periostin Concentrations in the Bronchoalveolar Lavage Fluid of Patients with Eosinophilic Pneumonia. Int Arch Allergy Immunol 2019; 178:264-271. [PMID: 30612125 DOI: 10.1159/000494623] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 10/16/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Eosinophilic pneumonia (EP) is characterized by massive pulmonary infiltration by eosinophils. Although serum periostin is a novel marker for eosinophil-dominant asthma, the upregulation of periostin in the airway of asthmatics is controversial. In this study, we examined whether periostin concentrations are elevated in the bronchoalveolar lavage fluid (BALF) of patients with EP. METHODS BAL was performed in healthy volunteers and in patients with acute eosinophilic pneumonia (AEP), chronic eosinophilic pneumonia (CEP), and sarcoidosis. The periostin concentrations in the BALF were measured. RESULTS The periostin concentration in the BALF increased significantly with pulmonary eosinophil ia and was higher in AEP and CEP patients than in healthy volunteers and sarcoidosis patients, even after adjusting the albumin concentration. In pulmonary eosinophilia, the periostin concentration correlated with the eosinophil and lymphocyte counts, the concentration of albumin, and the concentration of cytokines such as IL-5, IL-13, and transforming growth factor β1. CONCLUSIONS Although some blood leakage may be involved in the elevation of periostin in the BALF of EP, periostin can be induced locally, at least in part. Therefore, periostin may play a role in the development of EP.
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Affiliation(s)
- Kazuyuki Nakagome
- Department of Respiratory Medicine and Allergy Center, Saitama Medical University, Saitama, Japan,
| | - Yutaka Nakamura
- Division of Pulmonary Medicine, Allergy, and Rheumatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Takehito Kobayashi
- Department of Respiratory Medicine and Allergy Center, Saitama Medical University, Saitama, Japan
| | - Shoichiro Ohta
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga, Japan
| | - Junya Ono
- Shino-Test Corporation, Kanagawa, Japan
| | - Kiyoko Kobayashi
- Department of Laboratory Medicine, Saitama Medical University, Saitama, Japan
| | - Kenji Ikebuchi
- Department of Laboratory Medicine, Saitama Medical University, Saitama, Japan
| | - Toru Noguchi
- Department of Respiratory Medicine and Allergy Center, Saitama Medical University, Saitama, Japan
| | - Tomoyuki Soma
- Department of Respiratory Medicine and Allergy Center, Saitama Medical University, Saitama, Japan
| | - Kohei Yamauchi
- Division of Pulmonary Medicine, Allergy, and Rheumatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Kenji Izuhara
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga, Japan
| | - Makoto Nagata
- Department of Respiratory Medicine and Allergy Center, Saitama Medical University, Saitama, Japan
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