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Qin W, Liang A, Han X, Zhang M, Gao Y, Zhao C. Quantitative urinary proteome analysis reveals potential biomarkers for disease activity of Behcet's disease uveitis. BMC Ophthalmol 2024; 24:277. [PMID: 38982370 PMCID: PMC11232131 DOI: 10.1186/s12886-024-03557-9] [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: 07/30/2023] [Accepted: 07/03/2024] [Indexed: 07/11/2024] Open
Abstract
PURPOSE Behçet's disease-associated uveitis (BDU) is a severe, recurrent inflammatory condition affecting the eye and is part of a systemic vasculitis with unknown etiology, making biomarker discovery essential for disease management. In this study, we intend to investigate potential urinary biomarkers to monitor the disease activity of BDU. METHODS Firstly, label-free data-dependent acquisition (DDA) and tandem mass tag (TMT)-labeled quantitative proteomics methods were used to profile the proteomes of urine from active and quiescent BDU patients, respectively. For further exploration, the remaining fifty urine samples were analyzed by a data-independent acquisition (DIA) quantitative proteomics method. RESULTS Twenty-nine and 21 differential proteins were identified in the same urine from BDU patients by label-free DDA and TMT-labeled analyses, respectively. Seventy-nine differentially expressed proteins (DEPs) were significantly changed in other active BDU urine samples compared to those in quiescent BDU urine samples by IDA analysis. Gene Ontology (GO) and protein-protein interaction (PPI) analyses revealed that the DEPs were associated with multiple functions, including the immune and neutrophil activation responses. Finally, seven proteins were identified as candidate biomarkers for BDU monitoring and recurrence prediction, namely, CD38, KCRB, DPP4, FUCA2, MTPN, S100A8 and S100A9. CONCLUSIONS Our results showed that urine can be a good source of biomarkers for BDU. These dysregulated proteins provide potential urinary biomarkers for BDU activity monitoring and provide valuable clues for the analysis of the pathogenic mechanisms of BDU.
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Affiliation(s)
- Weiwei Qin
- Department of Anesthesiology, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, 266071, China
- Beijing Key Laboratory of Gene Engineering Drug and Biotechnology, College of Life Sciences, Beijing Normal University, Beijing100875, China
| | - Anyi Liang
- Key Laboratory of Ocular Fundus Diseases, Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, China
- Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Xiaoxu Han
- Key Laboratory of Ocular Fundus Diseases, Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, China
| | - Meifen Zhang
- Key Laboratory of Ocular Fundus Diseases, Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, China
| | - Youhe Gao
- Beijing Key Laboratory of Gene Engineering Drug and Biotechnology, College of Life Sciences, Beijing Normal University, Beijing100875, China.
| | - Chan Zhao
- Key Laboratory of Ocular Fundus Diseases, Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, China.
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Li T, Zhang WM, Wang J, Liu BJ, Gao Q, Zhang J, Qian HD, Pan JY, Liu M, Huang Q, Fang AW, Zhang Q, Gong XH, Cui RZ, Liang YB, Lu QK, Wu WC, Chi ZL. Circulating Small Extracellular Vesicles Involved in Systemic Regulation Respond to RGC Degeneration in Glaucoma. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2309307. [PMID: 38923329 DOI: 10.1002/advs.202309307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 05/14/2024] [Indexed: 06/28/2024]
Abstract
Glaucoma is a leading cause of irreversible blindness worldwide and is characterized by progressive retinal ganglion cell (RGC) degeneration and vision loss. Since irreversible neurodegeneration occurs before diagnosable, early diagnosis and effective neuroprotection are critical for glaucoma management. Small extracellular vesicles (sEVs) are demonstrated to be potential novel biomarkers and therapeutics for a variety of diseases. In this study, it is found that intravitreal injection of circulating plasma-derived sEVs (PDEV) from glaucoma patients ameliorated retinal degeneration in chronic ocular hypertension (COH) mice. Moreover, it is found that PDEV-miR-29s are significantly upregulated in glaucoma patients and are associated with visual field defects in progressed glaucoma. Subsequently, in vivo and in vitro experiments are conducted to investigate the possible function of miR-29s in RGC pathophysiology. It is showed that the overexpression of miR-29b-3p effectively prevents RGC degeneration in COH mice and promotes the neuronal differentiation of human induced pluripotent stem cells (hiPSCs). Interestingly, engineered sEVs with sufficient miR-29b-3p delivery exhibit more effective RGC protection and neuronal differentiation efficiency. Thus, elevated PDEV-miR-29s may imply systemic regulation to prevent RGC degeneration in glaucoma patients. This study provides new insights into PDEV-based glaucoma diagnosis and therapeutic strategies for neurodegenerative diseases.
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Affiliation(s)
- Tong Li
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Wen-Meng Zhang
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Jie Wang
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Bai-Jing Liu
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Qiao Gao
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Jing Zhang
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Hai-Dong Qian
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Jun-Yi Pan
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Ming Liu
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Qing Huang
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Ai-Wu Fang
- National Clinical Research Center for Ocular Diseases, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Qi Zhang
- National Clinical Research Center for Ocular Diseases, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Xian-Hui Gong
- National Clinical Research Center for Ocular Diseases, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Ren-Zhe Cui
- Department of Ophthalmology, Affiliated Hospital of Yanbian University, Yanji, 136200, China
| | - Yuan-Bo Liang
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
- National Clinical Research Center for Ocular Diseases, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Qin-Kang Lu
- Department of Ophthalmology, Yinzhou People's Hospital, Medical School of Ningbo University, Ningbo, 315040, China
| | - Wen-Can Wu
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
- National Clinical Research Center for Ocular Diseases, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Zai-Long Chi
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
- National Clinical Research Center for Ocular Diseases, Eye Hospital of Wenzhou Medical University, Wenzhou, 325027, China
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Cheng R, Xia X, Liu R, Zhang W, Du J, Zhang M, Li C. Neutrophil-derived S100A8/A9 promotes apoptosis of intestinal epithelial cells in children with duodenal ulcers. Aging (Albany NY) 2023; 15:6255-6263. [PMID: 37450409 PMCID: PMC10373952 DOI: 10.18632/aging.204842] [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: 02/17/2023] [Accepted: 06/12/2023] [Indexed: 07/18/2023]
Abstract
Duodenal ulcer significantly reduces quality of life and safety in children; however, the mechanism of the pathogenesis in children with duodenal ulcer remains unclear. S100A8/A9, which plays a critical role in the occurrence and development of inflammation, has attracted a lot of interest recently. Here, we identified that S100A8/A9 are highly expressed in the serum of children with duodenal ulcers, and this is of excellent diagnostic value. Animal experiments have proved that inhibition of S100A8/A9 can repair ulcer progression. In addition, further study has shown that S100A8/A9, mainly produced by neutrophil, can enhance the apoptosis of intestinal epithelial cells and promote the growth in children with duodenal ulcers. Thus, our research proves the value of S100A8/A9 in the diagnosis and treatment of children with duodenal ulcers.
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Affiliation(s)
- Rong Cheng
- Department of Gastroenterology, Children's Medical Center of Anhui Medical University (Anhui Provincial Children’s Hospital), The Fifth Clinical College, Anhui Medical University, Hefei 230051, Anhui, China
| | - Xiaowei Xia
- Department of Gastroenterology, Children's Medical Center of Anhui Medical University (Anhui Provincial Children’s Hospital), The Fifth Clinical College, Anhui Medical University, Hefei 230051, Anhui, China
| | - Rong Liu
- School of Basic Medical Sciences, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, Anhui, China
| | - Wenjun Zhang
- School of Basic Medical Sciences, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, Anhui, China
| | - Juan Du
- School of Basic Medical Sciences, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, Anhui, China
| | - Maoyan Zhang
- Department of Gastroenterology, Children's Medical Center of Anhui Medical University (Anhui Provincial Children’s Hospital), The Fifth Clinical College, Anhui Medical University, Hefei 230051, Anhui, China
| | - Chuanying Li
- Department of Gastroenterology, Children's Medical Center of Anhui Medical University (Anhui Provincial Children’s Hospital), The Fifth Clinical College, Anhui Medical University, Hefei 230051, Anhui, China
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Abd El Meged Nage S, Esmail A. Calprotectin as a Biomarker for Diagnosis and Severity of Acute Noninfectious Anterior Uveitis in Egyptian Patients. Clin Ophthalmol 2022; 16:4109-4120. [PMID: 36536923 PMCID: PMC9759012 DOI: 10.2147/opth.s389780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/18/2022] [Indexed: 09/01/2023] Open
Abstract
PURPOSE To study the relation between serum calprotectin level and acute noninfectious anterior uveitis in Egyptian patients. METHODS An observational prospective study carried out at Menoufia University Hospital during the period from March 2021 till June 2022, after informed consent from all studied patients. This study included 20 eyes of patients with Acute Anterior Uveitis (AAU) and 20 eyes healthy individuals matched sex and age as the control group. Full history taking, ophthalmological examination and serum calprotectin levels were performed for both patients and controls. RESULTS Serum calprotectin levels were substantially higher in patients' eyes with acute anterior uveitis than in healthy eyes (61.45±7.89 vs 32.50±11.64; 95% CI: 22.58-35.32; P < 0.001). ROC curve analysis showed that the cut-off point of serum calprotectin in severity detection of AAU was ≥58.0, with sensitivity of 95%, specificity of 43% at AUC of 0.986, with reached to significant level (p < 0.001). CONCLUSION Serum calprotectin levels were significantly elevated with positive previous uveitis and marked grade indicating a possible role of calprotectin in the pathogenesis of non-infectious AAU. The serum calprotectin cut-off points for severity detection of AAU were 58.0, with sensitivity of 95% and specificity of 43%. Finally, we identified serum calprotectin as a potential biomarker for detection of anterior uveitis severity and patients' morbidity risk. Further investigation with large sample size is needed to assess the relationship between calprotectin and uveitis activity.
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Affiliation(s)
| | - Ahmed Esmail
- Ophthalmology Department, Faculty of Medicine, Menoufia University, Menoufia, Egypt
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Yingrui W, Zheng L, Guoyan L, Hongjie W. Research progress of active ingredients of Scutellaria baicalensis in the treatment of type 2 diabetes and its complications. Biomed Pharmacother 2022; 148:112690. [DOI: 10.1016/j.biopha.2022.112690] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/21/2022] [Accepted: 02/02/2022] [Indexed: 12/13/2022] Open
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Liu J, Li J, Du H, Xu L, Yang Z, Yuan M, Zhang K, Li J, Xing W, Wang S, Hu T, Wang J, Wang J, Gong Q. Three Potential Tumor Markers Promote Metastasis and Recurrence of Colorectal Cancer by Regulating the Inflammatory Response: ADAM8, LYN, and S100A9. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:3118046. [PMID: 35103068 PMCID: PMC8800630 DOI: 10.1155/2022/3118046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/08/2021] [Indexed: 11/17/2022]
Abstract
Metastasis and recurrence are major causes of colorectal cancer (CRC) death, but their molecular mechanisms are unclear. In this study, genes associated with CRC metastasis and recurrence were identified by weighted gene coexpression network analysis, selecting the top 25% most variant genes in the dataset GSE33113. By average linkage hierarchical clustering, a total of 21 modules were generated. One key module was identified as the most relevant to the prognosis of CRC. Gene Ontology analysis indicated that genes associated with tumor metastasis and recurrence in this module were significantly enriched in inflammatory biological functions. Functional analysis was performed on the key module, and candidate hub genes (ADAM8, LYN, and S100A9) were screened out by expression and survival analysis. In summary, the three core genes identified in this study could greatly improve our understanding of CRC metastasis and recurrence. The results also provide a theoretical basis for the use of three core genes (ADAM8, LYN, and S100A9) as a combined marker for early diagnosis, which could benefit CRC patients.
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Affiliation(s)
- Jiawei Liu
- Department of Clinical Laboratory, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, China
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jing Li
- Department of Hepatobiliary Surgery, Kailuan General Hospital, Tangshan, Hebei 063210, China
| | - Haolin Du
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, China
- Department of Clinical Laboratory, Tianshui Hospital of Traditional Chinese Medicine, Tianshui 741000, China
| | - Liming Xu
- Department of Clinical Laboratory, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
| | - Zhenbang Yang
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Mengjiao Yuan
- Department of Clinical Laboratory, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
| | - Kaiyue Zhang
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Jialei Li
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Wenjun Xing
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Shoujie Wang
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Tingting Hu
- Hebei Key Laboratory for Chronic Diseases, Tangshan Key Laboratory for Preclinical and Basic Research on Chronic Diseases, School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Jinjin Wang
- Department of Clinical Laboratory, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
| | - Jin Wang
- Department of Clinical Laboratory, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
| | - Qian Gong
- Department of Clinical Laboratory, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
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Kaplan HJ, Sun D, Shao H. Damage-associated Molecular Patterns in Clinical and Animal Models of Uveitis. Ocul Immunol Inflamm 2021; 30:734-740. [PMID: 34477485 PMCID: PMC8891391 DOI: 10.1080/09273948.2021.1954203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Henry J Kaplan
- Department of Ophthalmology, Saint Louis University, St. Louis, Missouri, USA
| | - Deming Sun
- Doheny Eye Institute & Department Ophthalmology, David Geffen School of Medicine/UCLA, Los Angeles, California, USA
| | - Hui Shao
- Department of Ophthalmology and Visual Sciences, Kentucky Lions Eye Center, University of Louisville, Louisville, Kentucky, USA
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Sui J, Lu R, Halkidis K, Kocher NK, Cao W, Marques MB, Zheng XL. Plasma levels of S100A8/A9, histone/DNA complexes, and cell-free DNA predict adverse outcomes of immune thrombotic thrombocytopenic purpura. J Thromb Haemost 2021; 19:370-379. [PMID: 33188723 PMCID: PMC8058879 DOI: 10.1111/jth.15176] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 10/28/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Immune thrombotic thrombocytopenic purpura (iTTP) is a life-threatening blood disorder, primarily resulting from autoantibodies against ADAMTS13. Infection or inflammation often precedes acute iTTP. However, the association of inflammation and inflammatory mediators with disease severity and outcome of acute iTTP is not fully assessed. OBJECTIVES Here, we determined plasma levels of S100A8/A9, histone/DNA complexes, citrullinated histone H3 (CitH3), and cell-free DNA (cfDNA) in a cohort of 108 acute episodes from 94 unique iTTP patients and healthy controls, and assessed the association of each of these biomarkers with the disease severity and mortality. RESULTS All acute iTTP patients had significantly increased plasma levels of S100A8/A9 (median 84.8, interquartile range [IQR] 31.2-157.4 µg/mL), histone/DNA complexes (median 55.7, IQR 35.8-130.8 U/mL), CitH3 (median 3.8, IQR 2.2-6.4 ng/mL), and cfDNA (median 937.7, IQR 781.3-1420.0 ng/mL) on the admission blood samples when compared with healthy controls. An increased plasma level of S100A8/A9, histone/DNA complex and cfDNA was associated with organ damage, coagulopathy, and mortality in iTTP. After being adjusted for age and history of hypertension, Cox proportional hazard regression analysis demonstrated that a hazard ratio (95% confidence interval) for an elevated plasma level of S100A8/A9, histone/DNA complexes, and cfDNA was 11.5 (1.4-90.9) (P = .021), 10.3 (2.7-38.5) (P = .001), and 12.8 (3.9-42.0) (P = .014), respectively. CONCLUSION These results indicate that inflammation or plasma inflammatory mediators such as S100A8/A9 or NETosis markers such as histone/DNA complexes and cfDNA may play a role in pathogenesis of iTTP, which may help stratify patients with a high risk of death during acute iTTP episodes.
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Affiliation(s)
- Jingrui Sui
- Division of Laboratory Medicine, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Ruinan Lu
- Division of Laboratory Medicine, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Pathology & Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Konstantine Halkidis
- Division of Laboratory Medicine, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
- Division of Hematology and Oncology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Nicole K. Kocher
- Division of Laboratory Medicine, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Wenjing Cao
- Division of Laboratory Medicine, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Pathology & Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Marisa B. Marques
- Division of Laboratory Medicine, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - X. Long Zheng
- Division of Laboratory Medicine, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Pathology & Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA
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Pascual EV, Martínez-Costa Pérez L, Hernández Pons A, López Ortega JM, Grau García E, Albert Fort M, Alegre Sancho JJ, Ivorra JAR. The Role of Plasma Calprotectin in Non-infectious Uveitis. Curr Eye Res 2021; 46:1184-1192. [PMID: 33349072 DOI: 10.1080/02713683.2020.1867749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
PURPOSE To investigate the role of plasma calprotectin in non-infectious uveitis. METHODS This is an observational both cross-sectional and prospective study. Patients with active non-infectious uveitis were recruited as well as nonuveitic controls. Plasma calprotectin was determined and an ophthalmological examination was performed for both patients and controls. Independent variables possibly influencing levels of plasma calprotectin were recorded and analyzed. Categorical variables were compared by chi-square test (applying correction by continuity if necessary). T-test (or Kruskal-Wallis when appropriate) was used to compare averages. Multiple linear regression analysis was used to assess relationship between plasma calprotectin levels and independent variables. Spearman coefficient was calculated in order to establish correlation between plasma calprotectin and anterior chamber cell grading. Changes in plasma calprotectin levels between the flare beginning and its resolution were determined with mixed model for repeated measures. R software (version 3.6.0) was used to perform the statistical analysis. RESULTS We included 74 patients and 40 controls in the cross-sectional study. Plasma calprotectin levels were higher in uveitis patients compared to those of controls (p = .003), being higher in younger patients and patients with posterior uveitis. No correlation between calprotectin and anterior chamber inflammation degree was found (p = .198). For the prospective study, we included 36 patients. We found no significant differences in calprotectin levels between active and inactive uveitis (p = .344). CONCLUSIONS Plasma calprotectin levels are elevated in uveitis patients and are influenced by age and anatomical location of uveitis. Further investigation is needed to assess the relationship between calprotectin and uveitis activity.
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Affiliation(s)
- Elia Valls Pascual
- Department of Rheumatology, Hospital Universitari Doctor Peset, Valencia, Spain.,Escuela de Doctorado, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain
| | | | | | | | - Elena Grau García
- Department of Rheumatology, Hospital Universitari I Politècnic La Fe, Valencia, Spain
| | - Mara Albert Fort
- Department of Ophthalmology, Hospital Universitari Doctor Peset, Valencia, Spain
| | | | - José Andrés Román Ivorra
- Department of Rheumatology, Hospital Universitari I Politècnic La Fe, Valencia, Spain.,Facultad de Medicina y Odontologia, Universidad Catolica de Valencia San Vicente Martir, Valencia, Spain
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Severity of Experimental Autoimmune Uveitis Is Reduced by Pretreatment with Live Probiotic Escherichia coli Nissle 1917. Cells 2020; 10:cells10010023. [PMID: 33375578 PMCID: PMC7823395 DOI: 10.3390/cells10010023] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 02/07/2023] Open
Abstract
Non-infectious uveitis is considered an autoimmune disease responsible for a significant burden of blindness in developed countries and recent studies have linked its pathogenesis to dysregulation of the gut microbiota. We tested the immunomodulatory properties of two probiotics, Escherichia coli Nissle 1917 (EcN) and E. coli O83:K24:H31 (EcO), in a model of experimental autoimmune uveitis (EAU). To determine the importance of bacterial viability and treatment timing, mice were orally treated with live or autoclaved bacteria in both preventive and therapeutic schedules. Disease severity was assessed by ophthalmoscopy and histology, immune phenotypes in mesenteric and cervical lymph nodes were analyzed by flow cytometry and the gut immune environment was analyzed by RT-PCR and/or gut tissue culture. EcN, but not EcO, protected against EAU but only as a live organism and only when administered before or at the time of disease induction. Successful prevention of EAU was accompanied by a decrease in IRBP-specific T cell response in the lymph nodes draining the site of immunization as early as 7 days after the immunization and eye-draining cervical lymph nodes when the eye inflammation became apparent. Furthermore, EcN promoted an anti-inflammatory response in Peyer’s patches, increased gut antimicrobial peptide expression and decreased production of inducible nitric oxide synthase in macrophages. In summary, we show here that EcN controls inflammation in EAU and suggest that probiotics may have a role in regulating the gut–eye axis.
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