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Demeter F, Németh Z, Kajdácsi E, Bihari G, Dobó J, Gál P, Cervenak L. Detrimental interactions of hypoxia and complement MASP-1 in endothelial cells as a model for atherosclerosis-related diseases. Sci Rep 2024; 14:14882. [PMID: 38937560 PMCID: PMC11211410 DOI: 10.1038/s41598-024-64479-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 06/10/2024] [Indexed: 06/29/2024] Open
Abstract
Both hypoxia and the complement lectin pathway (CLP) are involved in atherosclerosis and atherosclerosis-related stroke and acute myocardial infarction (AMI). We have previously shown that mannose-binding lectin-associated serine protease-1 (MASP-1), the most abundant enzyme of CLP, induces an inflammatory phenotype of endothelial cells (ECs) by cleaving protease activated receptors (PARs). In the absence of data, we aimed to investigate whether hypoxia and MASP-1 interact at the level of ECs, to better understand their role in atherosclerosis-related diseases. Hypoxia attenuated the wound healing ability of ECs, increased ICAM-1 and decreased ICAM-2 expression and upregulated PAR2 gene expression. Hypoxia and MASP-1 increased GROα and IL-8 production, and endothelial permeability without potentiating each other's effects, whereas they cooperatively disrupted vascular network integrity, activated the Ca2+, CREB and NFκB signaling pathways, and upregulated the expression of E-selectin, a crucial adhesion molecule in neutrophil homing. VCAM-1 expression was not influenced either by hypoxia, or by MASP-1. In summary, hypoxia potentiates the effect of MASP-1 on ECs, at least partially by increasing PAR expression, resulting in interaction at several levels, which may altogether exacerbate stroke and AMI progression. Our findings suggest that MASP-1 is a potential drug target in the acute phase of atherosclerosis-related diseases.
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Affiliation(s)
- Flóra Demeter
- Research Laboratory, Department of Internal Medicine and Haematology, Semmelweis University, Szentkirályi U. 46, Budapest, 1088, Hungary
| | - Zsuzsanna Németh
- Research Laboratory, Department of Internal Medicine and Haematology, Semmelweis University, Szentkirályi U. 46, Budapest, 1088, Hungary
| | - Erika Kajdácsi
- Research Laboratory, Department of Internal Medicine and Haematology, Semmelweis University, Szentkirályi U. 46, Budapest, 1088, Hungary
- Research Group for Immunology and Hematology, Semmelweis University-HUN-REN-SU (Office for Supported Research Groups), Budapest, Hungary
| | - György Bihari
- Research Laboratory, Department of Internal Medicine and Haematology, Semmelweis University, Szentkirályi U. 46, Budapest, 1088, Hungary
| | - József Dobó
- Institute of Molecular Life Sciences, HUN-REN Research Centre for Natural Sciences, Hungarian Research Network, Budapest, Hungary
| | - Péter Gál
- Institute of Molecular Life Sciences, HUN-REN Research Centre for Natural Sciences, Hungarian Research Network, Budapest, Hungary
| | - László Cervenak
- Research Laboratory, Department of Internal Medicine and Haematology, Semmelweis University, Szentkirályi U. 46, Budapest, 1088, Hungary.
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Gabriela R, Vera V, Pavel R, Helena R, Igor S, Marie D, Marketa M, Alena MF, Ales T. Discovering the Radiation Biomarkers in the Plasma of Total-Body Irradiated Leukemia Patients. Radiat Res 2024; 201:418-428. [PMID: 38315067 DOI: 10.1667/rade-23-00137.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 12/12/2023] [Indexed: 02/07/2024]
Abstract
The increased risk of acute large-scale radiological exposure for the world's population underlines the need for optimal radiation biomarkers. Ionizing radiation triggers a complex response by the genome, proteome, and metabolome, all of which have been reported as suitable indicators of radiation-induced damage in vivo. This study analyzed peripheral blood samples from total-body irradiation (TBI) leukemia patients through mass spectrometry (MS) to identify and quantify differentially regulated proteins in plasma before and after irradiation. In brief, samples were taken from 16 leukemic patients prior to and 24 h after TBI (2 × 2.0 Gy), processed with Tandem Mass Tag isobaric labelling kit (TMTpro-16-plex), and analyzed by MS. In parallel, label-free relative quantification was performed with a RP-nanoLC-ESI-MS/MS system in a Q-Exactive mass spectrometer. Protein identification was done in Proteome Discoverer v.2.2 platform (Thermo). Data is available via ProteomeXchange with identifier PXD043516. Using two different methods, we acquired two datasets of up-regulated (ratio ≥ 1.2) or down-regulated (ratio ≤ 0.83) plasmatic proteins 24 h after irradiation, identifying 356 and 346 proteins in the TMT-16plex and 285 and 308 label-free analyses, respectively (P ≤ 0.05). Combining the two datasets yielded 15 candidates with significant relation to gamma-radiation exposure. The majority of these proteins were associated with the inflammatory response and lipid metabolism. Subsequently, from these, five proteins showed the strongest potential as radiation biomarkers in humans (C-reactive protein, Alpha amylase 1A, Mannose-binding protein C, Phospholipid transfer protein, and Complement C5). These candidate biomarkers might have implications for practical biological dosimetry.
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Affiliation(s)
- Rydlova Gabriela
- Department of Radiobiology
- Department of Biology, Faculty of Natural Sciences, University of Hradec Králové, Czech Republic, Hradec Králové, Czech Republic
| | | | | | - Rehulkova Helena
- Department of Toxicology, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
| | - Sirak Igor
- Department of Oncology and Radiotherapy and 4th Department of Internal Medicine - Haematology, University Hospital, Hradec Kralove, Czech Republic
| | - Davidkova Marie
- Department of Radiation Dosimetry, Nuclear Physics Institute of the Czech Academy of Sciences, Prague, Czech Republic
| | - Markova Marketa
- Department of Haematology and Blood Transfusion, University Hospital Na Bulovce, Prague, Czech Republic
| | - Myslivcova-Fucikova Alena
- Department of Biology, Faculty of Natural Sciences, University of Hradec Králové, Czech Republic, Hradec Králové, Czech Republic
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You YA, Park S, Kwon E, Kim YA, Hur YM, Lee GI, Kim SM, Song JM, Kim MS, Kim YJ, Kim YH, Na SH, Park MH, Bae JG, Cho GJ, Lee SJ. Maternal PM2.5 exposure is associated with preterm birth and gestational diabetes mellitus, and mitochondrial OXPHOS dysfunction in cord blood. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:10565-10578. [PMID: 38200189 PMCID: PMC10850187 DOI: 10.1007/s11356-023-31774-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024]
Abstract
Maternal exposure to fine particulate matter (PM2.5) is associated with adverse pregnancy and neonatal health outcomes. To explore the mechanism, we performed mRNA sequencing of neonatal cord blood. From an ongoing prospective cohort, Air Pollution on Pregnancy Outcome (APPO) study, 454 pregnant women from six centers between January 2021 and June 2022 were recruited. Individual PM2.5 exposure was calculated using a time-weighted average model. In the APPO study, age-matched cord blood samples from the High PM2.5 (˃15 ug/m3; n = 10) and Low PM2.5 (≤ 15 ug/m3; n = 30) groups were randomly selected for mRNA sequencing. After selecting genes with differential expression in the two groups (p-value < 0.05 and log2 fold change > 1.5), pathway enrichment analysis was performed, and the mitochondrial pathway was analyzed using MitoCarta3.0. The risk of preterm birth (PTB) increased with every 5 µg/m3 increase of PM2.5 in the second trimester (odds ratio 1.391, p = 0.019) after adjusting for confounding variables. The risk of gestational diabetes mellitus (GDM) increased in the second (odds ratio 1.238, p = 0.041) and third trimester (odds ratio 1.290, p = 0.029), and entire pregnancy (odds ratio 1.295, p = 0.029). The mRNA-sequencing of cord blood showed that genes related to mitochondrial activity (FAM210B, KRT1, FOXO4, TRIM58, and FBXO7) and PTB-related genes (ADIPOR1, YBX1, OPTN, NFkB1, HBG2) were upregulated in the High PM2.5 group. In addition, exposure to high PM2.5 affected mitochondrial oxidative phosphorylation (OXPHOS) and proteins in the electron transport chain, a subunit of OXPHOS. These results suggest that exposure to high PM2.5 during pregnancy may increase the risk of PTB and GDM, and dysregulate PTB-related genes. Alterations in mitochondrial OXPHOS by high PM2.5 exposure may occur not only in preterm infants but also in normal newborns. Further studies with larger sample sizes are required.
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Affiliation(s)
- Young-Ah You
- Department of Obstetrics and Gynecology and Ewha Medical Institute, College of Medicine, Ewha Womans University, 1071, Anyangcheon-Ro, Yangcheon-Gu, Seoul, 07985, Republic of Korea
| | - Sunwha Park
- Department of Obstetrics and Gynecology and Ewha Medical Institute, College of Medicine, Ewha Womans University, 1071, Anyangcheon-Ro, Yangcheon-Gu, Seoul, 07985, Republic of Korea
| | - Eunjin Kwon
- Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence, National Institute of Health, Cheongju, 28159, Republic of Korea
| | - Ye-Ah Kim
- Translational-Transdisciplinary Research Center, Clinical Research Institute, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Young Min Hur
- Department of Obstetrics and Gynecology and Ewha Medical Institute, College of Medicine, Ewha Womans University, 1071, Anyangcheon-Ro, Yangcheon-Gu, Seoul, 07985, Republic of Korea
| | - Ga In Lee
- Department of Obstetrics and Gynecology and Ewha Medical Institute, College of Medicine, Ewha Womans University, 1071, Anyangcheon-Ro, Yangcheon-Gu, Seoul, 07985, Republic of Korea
| | - Soo Min Kim
- Department of Obstetrics and Gynecology and Ewha Medical Institute, College of Medicine, Ewha Womans University, 1071, Anyangcheon-Ro, Yangcheon-Gu, Seoul, 07985, Republic of Korea
| | - Jeong Min Song
- Translational-Transdisciplinary Research Center, Clinical Research Institute, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
- Department of Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, Kyung Hee University, Seoul, Republic of Korea
| | - Man S Kim
- Translational-Transdisciplinary Research Center, Clinical Research Institute, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Young Ju Kim
- Department of Obstetrics and Gynecology and Ewha Medical Institute, College of Medicine, Ewha Womans University, 1071, Anyangcheon-Ro, Yangcheon-Gu, Seoul, 07985, Republic of Korea.
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Huang SL, Xin HY, Wang XY, Feng GG, Wu FQ, Feng ZP, Xing Z, Zhang XH, Xin HW, Luo WY. Recent Advances on the Molecular Mechanism and Clinical Trials of Venous Thromboembolism. J Inflamm Res 2023; 16:6167-6178. [PMID: 38111686 PMCID: PMC10726951 DOI: 10.2147/jir.s439205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 11/28/2023] [Indexed: 12/20/2023] Open
Abstract
Venous thromboembolism is a condition that includes deep vein thrombosis and pulmonary embolism. It is the third most common cardiovascular disease behind acute coronary heart disease and stroke. Over the past few years, growing research suggests that venous thrombosis is also related to the immune system and inflammatory factors have been confirmed to be involved in venous thrombosis. The role of inflammation and inflammation-related biomarkers in cerebrovascular thrombotic disease is the subject of ongoing debate. P-selectin leads to platelet-monocyte aggregation and stimulates vascular inflammation and thrombosis. The dysregulation of miRNAs has also been reported in venous thrombosis, suggesting the involvement of miRNAs in the progression of venous thrombosis. Plasminogen activator inhibitor-1 (PAI-1) is a crucial component of the plasminogen-plasmin system, and elevated levels of PAI-1 in conjunction with advanced age are significant risk factors for thrombosis. In addition, it has been showed that one of the ways that neutrophils promote venous thrombosis is the formation of neutrophil extracellular traps (NETs). In recent years, the role of extracellular vesicles (EVs) in the occurrence and development of VTE has been continuously revealed. With the advancement of research technology, the complex regulatory role of EVs on the coagulation process has been gradually discovered. However, our understanding of the causes and consequences of these changes in venous thrombosis is still limited. Therefore, we review our current understanding the molecular mechanisms of venous thrombosis and the related clinical trials, which is crucial for the future treatment of venous thrombosis.
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Affiliation(s)
- Shao-Li Huang
- Medical Laboratory Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, 524400, People’s Republic of China
- First Clinical College, Guangdong Medical University, Guangdong, 524400, People’s Republic of China
- Clinical laboratory, Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
| | - Hong-Yi Xin
- Doctoral Scientific Research Center, Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
- Guangdong Medical University Affiliated Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
| | - Xiao-Yan Wang
- Doctoral Scientific Research Center, Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
- Guangdong Medical University Affiliated Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
| | - Guang-Gui Feng
- Clinical laboratory, Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
| | - Fu-Qing Wu
- Clinical laboratory, Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
| | - Zhi-Peng Feng
- Department of Gastroenterology, Yueyang Hospital Affiliated to Hunan Normal University, Yueyang, Hunan, 414000, People’s Republic of China
| | - Zhou Xing
- First Clinical College, Guangdong Medical University, Guangdong, 524400, People’s Republic of China
| | - Xi-He Zhang
- Doctoral Scientific Research Center, Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
- Guangdong Medical University Affiliated Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
| | - Hong-Wu Xin
- Doctoral Scientific Research Center, Lianjiang People’s Hospital, Guangdong, 524400, People’s Republic of China
- Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Faculty of Medicine, Yangtze University, Jingzhou, Hubei, 434023, People’s Republic of China
- Research Centre of Molecular Medicine, Medical College of Chifeng University, Chifeng, Inner Mongolian Autonomous Region, 024000, People’s Republic of China
| | - Wen-Ying Luo
- Medical Laboratory Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, 524400, People’s Republic of China
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Yu TH, Wu CC, Tsai IT, Hsuan CF, Lee TL, Wang CP, Wei CT, Chung FM, Lee YJ, Hung WC, Tang WH. Circulating mannose-binding lectin concentration in patients with stable coronary artery disease is associated with heart failure and renal function. Clin Chim Acta 2023; 548:117528. [PMID: 37640132 DOI: 10.1016/j.cca.2023.117528] [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: 05/12/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 08/31/2023]
Abstract
BACKGROUND Mannose-binding lectin (MBL) has been associated with cardiovascular disease and its complications, the progression of diabetic nephropathy, and complement-mediated renal interstitial injury. However, the relationship between plasma MBL concentration with both heart failure and renal function is unclear. In this study, we examined associations of plasma MBL with both renal function and heart failure in patients with stable coronary artery disease (CAD). METHODS We enrolled 348 consecutive stable CAD patients and used ELISA to evaluate plasma concentrations of MBL. Renal function was classified into KDIGO G1, G2 and G3a-G4 groups according to the eGFR of ≥ 90, 60-89 and 15-59, ml/min/1.73 m2, respectively. Patients with a left ventricular ejection fraction (LVEF) ≤ 40 % were classified to have heart failure. RESULTS A significant positive association was found between MBL with diabetes mellitus, current smoker, blood urea nitrogen, creatinine, and brain natriuretic peptide, and a significant negative association was found between MBL with eGFR and LVEF. KDIGO stage G3a-G4 and heart failure increased along with tertiles of MBL (p for trend < 0.05). Multivariate analysis showed that compared to the patients with a low MBL concentration, the odds ratios of having KDIGO stage G3a-G4 were 1.89 (1.01-3.55) times and 2.37 (1.25-4.59) times higher for those with medium and high MBL concentrations. Furthermore, compared to the patients with a low MBL concentration, the OR of having heart failure were 1.97 (1.01-3.93) times higher for those with high MBL concentrations. Moreover, multivariate analysis showed an independent association between plasma MBL concentration with both KDIGO stage G3a-G4 and heart failure (LVEF < 40 %). In addition, the effect of MBL on both LVEF and eGFR was confirmed by structural equation model analysis. CONCLUSION There are associations between circulating MBL concentration with both heart failure and renal function in stable CAD patients, suggesting that increased plasma MBL may contribute to the pathogenesis of both chronic kidney disease and heart failure.
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Affiliation(s)
- Teng-Hung Yu
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Cheng-Ching Wu
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; Division of Cardiology, Department of Internal Medicine, E-Da Cancer Hospital, I-Shou University, Kaohsiung 82445, Taiwan
| | - I-Ting Tsai
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; Department of Emergency, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan
| | - Chin-Feng Hsuan
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; Division of Cardiology, Department of Internal Medicine, E-Da Dachang Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Thung-Lip Lee
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung, 82445, Taiwan
| | - Chao-Ping Wang
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung, 82445, Taiwan
| | - Ching-Ting Wei
- Division of General Surgery, Department of Surgery, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; The School of Chinese Medicine for Post Baccalaureate, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Fu-Mei Chung
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan
| | | | - Wei-Chin Hung
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan.
| | - Wei-Hua Tang
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Yuli Branch, Hualien 98142, Taiwan; Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan.
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Oxidative stress stimulation leads to cell-specific oxidant and antioxidant responses in airway resident and inflammatory cells. Life Sci 2023; 315:121358. [PMID: 36596408 DOI: 10.1016/j.lfs.2022.121358] [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: 09/30/2022] [Revised: 12/18/2022] [Accepted: 12/28/2022] [Indexed: 01/02/2023]
Abstract
AIMS The imbalance between reactive oxygen species (ROS) and the antioxidant response has been linked to various airway diseases, including asthma. However, knowledge on cell-specific responses of the airway resident and inflammatory cells against increased oxidant stress is very limited. We aim to better understand the cell-specific antioxidant response that contributes to the pathophysiology of lung disease in response to oxidative stress. MATERIALS AND METHODS The human cell lines of epithelial, fibroblast, endothelial, monocyte, eosinophil and neutrophil were incubated with tert-butyl hydroperoxide (tBHP) or cigarette smoke condensate (CSC). Following stimulation, cell viability, total oxidant and antioxidant activity were assessed in both residential and inflammatory cells. Human Oxidative Stress Plus RT2 Profiler PCR array was used to determine 84 gene expression differences in oxidant and antioxidant pathways following oxidant stimulus in all cells. KEY FINDINGS We showed that various cell types respond differently to oxidative stress inducers, with distinct gene expression and oxidant-antioxidant generation. Most importantly, eosinophils increased the activity of all main antioxidant enzymes in response to both oxidants. Monocytes, on the other hand, showed no change in response to each stimulation, whereas neutrophils only increased their CAT activity in response to both stimuli. The increase in NRF2-regulated genes HSPA1A, HMOX1 and DUSP1 after both tBHP and CSC in epithelial cells and fibroblasts indicates Nfr2 pathway activation. SIGNIFICANCE This study advances our knowledge of the molecular and cellular mechanisms of cell-specific antioxidant response upon exposure to oxidative stress. Additionally, our observations imply that the eosinophils' distinct biological response may be utilized for endotype-based cell-targeted antioxidant therapy.
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Damoah CE, Snir O, Hindberg K, Garred P, Ludviksen JK, Brækkan SK, Morelli VM, Eirik Mollnes T, Hansen JB. High Levels of Complement Activating Enzyme MASP-2 Are Associated With the Risk of Future Incident Venous Thromboembolism. Arterioscler Thromb Vasc Biol 2022; 42:1186-1197. [PMID: 35861070 DOI: 10.1161/atvbaha.122.317746] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Experimental studies have shown that the complement activating enzyme MASP-2 (mannose-binding lectin associated serine protease 2) exhibits a thrombin-like activity and that inhibition of MASP-2 protects against thrombosis. In this study, we investigated whether plasma MASP-2 levels were associated with risk of future venous thromboembolism (VTE) and whether genetic variants linked to MASP-2 levels were associated with VTE risk. METHODS We conducted a population-based nested case-control study involving 410 VTE patients and 842 age- and sex-matched controls derived from the Norwegian Tromsø Study. Logistic regression was used to estimate odds ratios (ORs) of VTE across MASP-2 quartiles. Whole-exome sequencing and protein quantitative trait loci analyses were performed to assess genetic variants associated with MASP-2 levels. A 2-sample Mendelian randomization study, also including data from the INVENT consortium (International Network of Venous Thrombosis), was performed to assess causality. RESULTS Subjects with plasma MASP-2 in the highest quartile had a 48% higher OR of VTE (OR, 1.48 [95% CI, 1.06-2.06]) and 83% higher OR of deep vein thrombosis (OR, 1.83 [95% CI, 1.23-2.73]) compared with those with MASP-2 levels in the lowest quartile. The protein quantitative trait loci analysis revealed that 3 previously described gene variants, rs12711521 (minor allele frequency, 0.153), rs72550870 (minor allele frequency, 0.045; missense variants in the MASP2 gene), and rs2275527 (minor allele frequency, 0.220; exon variant in the adjacent MTOR gene) explained 39% of the variation of MASP-2 plasma concentration. The OR of VTE per 1 SD increase in genetically predicted MASP-2 was 1.03 ([95% CI, 1.01-1.05] P=0.0011). CONCLUSIONS Our findings suggest that high plasma MASP-2 levels are causally associated with risk of future VTE.
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Affiliation(s)
- Christabel Esi Damoah
- Department of Clinical Medicine, Thrombosis Research Center, UiT The Arctic University of Norway, Tromsø (C.E.D., O.S., K.H., S.K.B., V.M.M., T.E.M., J.-B.H.)
| | - Omri Snir
- Department of Clinical Medicine, Thrombosis Research Center, UiT The Arctic University of Norway, Tromsø (C.E.D., O.S., K.H., S.K.B., V.M.M., T.E.M., J.-B.H.)
| | - Kristian Hindberg
- Department of Clinical Medicine, Thrombosis Research Center, UiT The Arctic University of Norway, Tromsø (C.E.D., O.S., K.H., S.K.B., V.M.M., T.E.M., J.-B.H.)
| | - Peter Garred
- Laboratory of Molecular Medicine, Department of Clinical Immunology, Rigshospitalet, Copenhagen, Denmark (P.G.)
| | | | - Sigrid K Brækkan
- Department of Clinical Medicine, Thrombosis Research Center, UiT The Arctic University of Norway, Tromsø (C.E.D., O.S., K.H., S.K.B., V.M.M., T.E.M., J.-B.H.).,Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway (S.K.B., V.M.M., J.-B.H.)
| | - Vânia M Morelli
- Department of Clinical Medicine, Thrombosis Research Center, UiT The Arctic University of Norway, Tromsø (C.E.D., O.S., K.H., S.K.B., V.M.M., T.E.M., J.-B.H.).,Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway (S.K.B., V.M.M., J.-B.H.)
| | - Tom Eirik Mollnes
- Department of Clinical Medicine, Thrombosis Research Center, UiT The Arctic University of Norway, Tromsø (C.E.D., O.S., K.H., S.K.B., V.M.M., T.E.M., J.-B.H.).,Research Laboratory, Nordland Hospital, Bodø, Norway (J.K.L., T.E.M.).,Department of Immunology, Oslo University Hospital and University of Oslo, Norway (T.E.M.).,Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway (T.E.M.)
| | - John-Bjarne Hansen
- Department of Clinical Medicine, Thrombosis Research Center, UiT The Arctic University of Norway, Tromsø (C.E.D., O.S., K.H., S.K.B., V.M.M., T.E.M., J.-B.H.).,Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway (S.K.B., V.M.M., J.-B.H.)
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Ogunnigbagbe O, Bunick CG, Kaur K. Keratin 1 as a cell-surface receptor in cancer. Biochim Biophys Acta Rev Cancer 2022; 1877:188664. [PMID: 34890750 PMCID: PMC8818032 DOI: 10.1016/j.bbcan.2021.188664] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/10/2021] [Accepted: 11/30/2021] [Indexed: 01/03/2023]
Abstract
Keratins are fibrous proteins that take part in several important cellular functions, including the formation of intermediate filaments. In addition, keratins serve as epithelial cell markers, which has made their role in cancer progression, diagnosis, and treatment an important focus of research. Keratin 1 (K1) is a type II keratin whose structure is comprised of a coiled-coil central domain flanked by flexible, glycine-rich loops in the N- and C-termini. While the structure of cytoplasmic K1 is established, the structure of cell-surface K1 is not known. Several transformed cells, such as cancerous cells and cells that have undergone oxidative stress, display increased levels of overall and/or cell-surface K1 expression. Cell-surface keratins (CSKs) may be modified or truncated, and their role is yet to be fully elucidated. Current studies suggest that CSKs are involved in receptor-mediated endocytosis and immune evasion. In this Review, we discuss findings relating to K1 structure, overexpression, and cell-surface expression in the context of utilizing CSK1 as a receptor for targeted drug delivery to cancer cells, and other strategies to develop novel treatments for cancer.
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Affiliation(s)
- Oluseye Ogunnigbagbe
- School of Pharmacy, Harry and Diane Rinker Health Science Campus, Chapman University, Irvine, California, 92618-1908, USA
| | - Christopher G. Bunick
- Department of Dermatology, Yale University, New Haven, Connecticut, 06520-8059, USA,corresponding author
| | - Kamaljit Kaur
- School of Pharmacy, Harry and Diane Rinker Health Science Campus, Chapman University, Irvine, California, 92618-1908, USA,corresponding author
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9
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Delivery of doxorubicin loaded P18 conjugated-poly(2-ethyl-oxazoline)-DOPE nanoliposomes for targeted therapy of breast cancer. Toxicol Appl Pharmacol 2021; 428:115671. [PMID: 34391753 DOI: 10.1016/j.taap.2021.115671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 07/31/2021] [Accepted: 08/02/2021] [Indexed: 01/11/2023]
Abstract
Breast cancer, a heterogeneous disease, has the highest incidence rate and is a major cause of death in females worldwide. Drug delivery by using nanotechnology has shown great promise for improving cancer treatment. Nanoliposomes are known to have enhanced accumulation ability in tumors due to prolonged systemic circulation. Peptide 18 (P18), a tumor homing peptide targeting keratin-1 (KRT-1), was previously shown to have high binding affinity towards breast cancer cells. In this study, we investigate the ability of P18 conjugated PEtOx-DOPE nanoliposomes (P18-PEtOx-DOPE) for the targeted delivery of doxorubicin to AU565 breast cancer model. Toxicology studies of PEtOx-DOPE nanoliposomes performed on normal breast epithelial cells (MCF10A), showed minimal toxicity. Doxorubicin delivery by P18-PEtOx-DOPE to AU565 cells induces cytotoxicity in a dose and time dependent manner causing mitotic arrest in G2/M phase at 24 h. Anti-cancer activity of P18-PEtOx-DOPE-DOX nanoliposomes on AU565 cells was detected by Annexin V/PI apoptosis assay. In terms of in vivo antitumor efficacy, P18-PEtOx-DOPE-DOX nanoliposomes administration to AU565 CD-1 nu/nu mice model showed significant decrease in tumor volume suggesting that DOX delivered by these nanoliposomes elicited a strong antitumor response comparable to the free delivery of doxorubicin. Overall, our results offered preclinical proof for the use of P18-PEtOx-DOPE-DOX nanoliposomes in KRT-1+ breast cancer therapy.
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10
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Khoder-Agha F, Kietzmann T. The glyco-redox interplay: Principles and consequences on the role of reactive oxygen species during protein glycosylation. Redox Biol 2021; 42:101888. [PMID: 33602616 PMCID: PMC8113034 DOI: 10.1016/j.redox.2021.101888] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 12/21/2022] Open
Abstract
Reactive oxygen species (ROS) carry out prime physiological roles as intracellular signaling agents, yet pathologically high concentrations of ROS cause irreversible damage to biomolecules, alter cellular programs and contribute to various diseases. While decades of intensive research have identified redox-related patterns and signaling pathways, very few addressed how the glycosylation machinery senses and responds to oxidative stress. A common trait among ROS and glycans residing on glycoconjugates is that they are both highly dynamic, as they are quickly fine-tuned in response to stressors such as inflammation, cancer and infectious diseases. On this account, the delicate balance of the redox potential, which is tightly regulated by dozens of enzymes including NOXs, and the mitochondrial electron transport chain as well as the fluidity of glycan biosynthesis resulting from the cooperation of glycosyltransferases, glycosidases, and nucleotide sugar transporters, is paramount to cell survival. Here, we review the broad spectrum of the interplay between redox changes and glycosylation with respect to their principle consequences on human physiology.
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Affiliation(s)
- Fawzi Khoder-Agha
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Kietzmann
- University of Oulu, Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, Oulu, Finland.
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11
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Saghaeidehkordi A, Chen S, Yang S, Kaur K. Evaluation of a Keratin 1 Targeting Peptide-Doxorubicin Conjugate in a Mouse Model of Triple-Negative Breast Cancer. Pharmaceutics 2021; 13:661. [PMID: 34063098 PMCID: PMC8148172 DOI: 10.3390/pharmaceutics13050661] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/21/2021] [Accepted: 04/30/2021] [Indexed: 12/11/2022] Open
Abstract
Chemotherapy is the main treatment for triple-negative breast cancer (TNBC), a subtype of breast cancer that is aggressive with a poor prognosis. While chemotherapeutics are potent, these agents lack specificity and are equally toxic to cancer and nonmalignant cells and tissues. Targeted therapies for TNBC treatment could lead to more safe and efficacious drugs. We previously engineered a breast cancer cell targeting peptide 18-4 that specifically binds cell surface receptor keratin 1 (K1) on breast cancer cells. A conjugate of peptide 18-4 and doxorubicin (Dox) containing an acid-sensitive hydrazone linker showed specific toxicity toward TNBC cells. Here, we report the in vivo evaluation of the K1 targeting peptide-Dox conjugate (PDC) in a TNBC cell-derived xenograft mouse model. Mice treated with the conjugate show significantly improved antitumor efficacy and reduced off-target toxicity compared to mice treated with Dox or saline. After six weekly treatments, on day 35, the mice treated with PDC (2.5 mg Dox equivalent/kg) showed significant reduction (1.5 times) in tumor volume compared to mice treated with Dox (2.5 mg/kg). The mice treated with the conjugate showed significantly higher (1.4 times) levels of Dox in tumors and lower (1.3-2.2 times) levels of Dox in other organs compared to mice treated with Dox. Blood collected at 15 min showed 3.6 times higher concentration of the drug (PDC and Dox) in mice injected with PDC compared to the drug (Dox) in mice injected with Dox. The study shows that the K1 targeting PDC is a promising novel modality for treatment of TNBC, with a favorable safety profile, and warrants further investigation of K1 targeting conjugates as TNBC therapeutics.
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Affiliation(s)
- Azam Saghaeidehkordi
- Chapman University School of Pharmacy (CUSP), Harry and Diane Rinker Health Science Campus, Chapman University, Irvine, CA 92618-1908, USA; (A.S.); (S.Y.)
| | - Shiuan Chen
- Department of Cancer Biology, Beckman Research Institute of the City of Hope, Duarte, CA 91010, USA;
| | - Sun Yang
- Chapman University School of Pharmacy (CUSP), Harry and Diane Rinker Health Science Campus, Chapman University, Irvine, CA 92618-1908, USA; (A.S.); (S.Y.)
| | - Kamaljit Kaur
- Chapman University School of Pharmacy (CUSP), Harry and Diane Rinker Health Science Campus, Chapman University, Irvine, CA 92618-1908, USA; (A.S.); (S.Y.)
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12
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Li H, Lu H, Cui W, Huang Y, Jin X. A TP53-based immune prognostic model for muscle-invasive bladder cancer. Aging (Albany NY) 2020; 13:1929-1946. [PMID: 33323544 PMCID: PMC7880361 DOI: 10.18632/aging.202150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/10/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Muscle-invasive bladder cancer (MIBC) patients are subject to unfavorable treatment options and a high recurrence rate. The status of TP53 mutations played an essential role in the progression and the prognosis of MIBC. The present study proposed to investigate the association between TP53 mutations and immunophenotype in MIBC. RESULTS We established an immune prognostic model (IPM) ground on the immune-associated genes derived from variation analysis between wild-type TP53 and mutated TP53 TCGA-MIBC patients, and validated in another cohort from GEO database. Based on IPM, we divided MIBC patients into low and high risk subgroups. The high risk MIBC patients had higher proportions of macrophages M1, and lower proportions of T cells regulatory (Tregs) and activated dendritic cells than the low risk MIBC patients. Moreover, the expression of immune checkpoints genes (PD1, CTLA4, LAG3, HAVCR2 and TIGIT) was higher in the high risk patients than the low risk patients. In clinical application, IPM exhibited better survival prediction than conventional clinical characteristics. CONCLUSIONS Our investigation presented practical prognostic significance for MIBC patients and displayed the overarching landscape of the immune response in the MIBC microenvironment. METHODS Data were obtained from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO). Differentially expressed genes (DEGs) analysis between the TP53 mutated and wild-type MIBC patients was conducted. The CIBERSORT algorithm was performed to evaluate the proportion of immune cell types. Gene expression profiles from the TCGA and GEO were used as training and testing cohorts to build and validate an immune-related prognostic model (IPM). Genes in the IPM model were first screened by univariate Cox analysis, then filtered by the least absolute shrinkage and selection operator (LASSO) Cox regression. A nomogram was finally established and evaluated by combining both the IPM and other clinical factors.
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Affiliation(s)
- Hongyan Li
- Jilin Key Laboratory of Urologic Oncology, Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Huayi Lu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Wanli Cui
- Jilin Key Laboratory of Urologic Oncology, Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yufan Huang
- Jilin Key Laboratory of Urologic Oncology, Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xuefei Jin
- Jilin Key Laboratory of Urologic Oncology, Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, China
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13
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Neglia L, Fumagalli S, Orsini F, Zanetti A, Perego C, De Simoni MG. Mannose-binding lectin has a direct deleterious effect on ischemic brain microvascular endothelial cells. J Cereb Blood Flow Metab 2020; 40:1608-1620. [PMID: 31495300 PMCID: PMC7370363 DOI: 10.1177/0271678x19874509] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mannose-binding lectin (MBL), an initiator of the lectin pathway, is detrimental in ischemic stroke. MBL deposition on the ischemic endothelium indicates the beginning of its actions, but downstream mechanisms are not clear yet.We investigated MBL interactions with the ischemic endothelium by exposing human brain microvascular endothelial cells (hBMECs) to protocols of ischemia. Cells were exposed to hypoxia or oxygen-glucose deprivation (OGD), and re-oxygenated with human serum (HS) or recombinant MBL (rhMBL). Hypoxic hBMECs re-oxygenated with HS showed increased complement system activation (C3c deposition, +59%) and MBL deposition (+93%) than normoxic cells. Super-resolution microscopy showed MBL internalization in hypoxic cells and altered cytoskeletal organization, indicating a potential MBL action on the endothelial structure. To isolate MBL effect, hBMECs were re-oxygenated with rhMBL after hypoxia/OGD. In both conditions, MBL reduced viability (hypoxia: -25%, OGD: -34%) compared to conditions without MBL, showing a direct toxic effect. Ischemic cells also showed greater MBL deposition (hypoxia: +143%, OGD: +126%) than normoxic cells. These results were confirmed with primary hBMECs exposed to OGD (increased MBL-induced cell death: +226%, and MBL deposition: +104%). The present findings demonstrate that MBL can exert a direct deleterious effect on ischemic brain endothelial cells in vitro, independently from complement activation.
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Affiliation(s)
- Laura Neglia
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Stefano Fumagalli
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Franca Orsini
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Adriana Zanetti
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Carlo Perego
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
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Zhang Y, Ou M, Lin H, Lai L, Chen H, Chen J, Sui W, Xue W, Zhang R, Gan Q, Tang D, Sun X, Dong J, Yan Q, Dai Y. Proteomic analysis of differentially expressed proteins in the serum of patients with acute renal allograft rejection using iTRAQ labelling technology. Mol Med Rep 2020; 22:2329-2341. [PMID: 32705285 PMCID: PMC7411402 DOI: 10.3892/mmr.2020.11299] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 04/07/2020] [Indexed: 12/24/2022] Open
Abstract
Transplantation is currently the best treatment for patients with end‑stage renal disease. However, acute rejection (AR) is the major source of failure in renal transplantation. The current best practice for the diagnosis of AR involves renal biopsy, but it is invasive, time‑consuming, costly and inconvenient. Sensitive and less invasive detection of AR episodes in renal transplant patients is essential to preserve allograft function. The present study applied isobaric tags for relative and absolute quantitation (iTRAQ) mass spectrometry to analyze serum protein expression in patients with AR and healthy controls. Overall, 1,399 proteins were identified. Using a cut‑off of Q<0.05 and a fold change of >1.2 for the variation in expression, 109 proteins were identified to be differentially expressed between the AR and control groups, 72 of which were upregulated and 37 were downregulated. Several proteins, including properdin, keratin 1, lipoprotein(a) and vitamin D‑binding protein, may have roles in the pathogenesis of AR. The present study focused on iTRAQ‑based proteomic profiling of serum samples in AR. Insight from the present study may help advance the understanding of the molecular mechanisms of AR and identify potential novel biomarkers of AR for further characterization.
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Affiliation(s)
- Yue Zhang
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Minglin Ou
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Hua Lin
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Liusheng Lai
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Huaizhou Chen
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Jiejing Chen
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Weiguo Sui
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Wen Xue
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Ruohan Zhang
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Qing Gan
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Donge Tang
- Department of Clinical Medical Research Center, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, Guangdong 518020, P.R. China
| | - Xuyong Sun
- Department of Organ Transplantation, Institute of Transplant Medicine, No. 923 Hospital of People's Liberation Army, Guangxi Key Laboratory for Transplantation Medicine, Guangxi Transplantation Medicine Research Center of Engineering Technology, Nanning, Guangxi 530021, P.R. China
| | - Jianhui Dong
- Department of Organ Transplantation, Institute of Transplant Medicine, No. 923 Hospital of People's Liberation Army, Guangxi Key Laboratory for Transplantation Medicine, Guangxi Transplantation Medicine Research Center of Engineering Technology, Nanning, Guangxi 530021, P.R. China
| | - Qiang Yan
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
| | - Yong Dai
- Department of Nephrology, Guilin No. 924 Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin Key Laboratory of Kidney Disease Research, Guilin, Guangxi 541002, P.R. China
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15
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Ziaei E, Saghaeidehkordi A, Dill C, Maslennikov I, Chen S, Kaur K. Targeting Triple Negative Breast Cancer Cells with Novel Cytotoxic Peptide-Doxorubicin Conjugates. Bioconjug Chem 2019; 30:3098-3106. [PMID: 31715102 DOI: 10.1021/acs.bioconjchem.9b00755] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this study, we have designed and synthesized two novel peptide-drug conjugates (PDCs) where the drug, doxorubicin (Dox), is linked to the peptide via a succinimidyl thioether bond or a hydrazone linker. A highly specific and proteolytically stable breast cancer cell targeting peptide (WxEAAYQrFL) is conjugated to Dox to synthesize peptide-Dox thioether (1) or hydrazone (2) conjugate. The evaluation of the stability in water, media, and human serum showed that the conjugate 1 with the succinimidyl thioether linkage is more stable compared to the acid-sensitive hydrazone containing conjugate 2. The cytotoxicity studies showed that the two PDCs were as toxic as free Dox toward the triple negative breast cancer (TNBC) cells and were 7-30 times less toxic (IC50 1.2-4.7 μM for TNBC cells versus 15-39 μM for noncancerous cells) toward the noncancerous breast cells compared to the free doxorubicin (IC50 0.35-1.5 μM for TNBC cells versus 0.24 μM for noncancerous cells). The results from the comparative study of the two PDCs suggest that both may have translational potential for TNBC treatment.
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Affiliation(s)
- Elmira Ziaei
- Chapman University School of Pharmacy (CUSP), Harry and Diane Rinker Health Science Campus , Chapman University , Irvine , California 92618-1908 , United States
| | - Azam Saghaeidehkordi
- Chapman University School of Pharmacy (CUSP), Harry and Diane Rinker Health Science Campus , Chapman University , Irvine , California 92618-1908 , United States
| | - Cassandra Dill
- Chapman University School of Pharmacy (CUSP), Harry and Diane Rinker Health Science Campus , Chapman University , Irvine , California 92618-1908 , United States
| | - Innokentiy Maslennikov
- Chapman University School of Pharmacy (CUSP), Harry and Diane Rinker Health Science Campus , Chapman University , Irvine , California 92618-1908 , United States
| | - Shiuan Chen
- Department of Cancer Biology , Beckman Research Institute of the City of Hope , Duarte , California 91010 , United States
| | - Kamaljit Kaur
- Chapman University School of Pharmacy (CUSP), Harry and Diane Rinker Health Science Campus , Chapman University , Irvine , California 92618-1908 , United States
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16
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Liang RA, Høiland II, Ueland T, Aukrust P, Snir O, Hindberg K, Braekkan SK, Garred P, Mollnes TE, Hansen JB. Plasma levels of mannose-binding lectin and future risk of venous thromboembolism. J Thromb Haemost 2019; 17:1661-1669. [PMID: 31220397 DOI: 10.1111/jth.14539] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/22/2019] [Accepted: 06/06/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND Animal and observational studies have suggested a pathophysiological role for complement in venous thromboembolism (VTE), but the initiating mechanisms are unknown. Mannose-binding lectin (MBL) bound to altered host cells leads to activation of the lectin complement pathway, and both high and low MBL levels have been implicated in the pathophysiology of cardiovascular disease. OBJECTIVES To investigate the association between plasma MBL levels and future risk of incident VTE. METHODS We conducted a nested case-control study in 417 VTE patients and 849 age-matched and sex-matched controls derived from the general population (Tromsø Study). Plasma MBL levels were measured using enzyme-linked immunosorbent assay. Logistic regression models were used to estimate odds ratio (OR) for VTE across quartiles of plasma MBL levels. RESULTS Subjects with plasma MBL levels in the lowest quartile (<435 ng/mL) had a reduced OR for overall VTE (OR 0.79, 95% confidence interval [CI]: 0.56-1.10) and for DVT (OR 0.70, 95% CI: 0.47-1.04) compared to those with MBL in the highest quartile (≥2423 ng/mL) after multivariable adjustments. For VTE, DVT, and pulmonary embolism (PE) the ORs decreased substantially with decreasing time between blood sampling and VTE event. CONCLUSIONS Our findings suggest that low plasma MBL levels are associated with reduced risk of VTE, and DVT in particular.
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Affiliation(s)
- Robin A Liang
- K. G. Jebsen - Thrombosis Research and Expertise Center (TREC), Department of Clinical Medicine, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Ina I Høiland
- K. G. Jebsen - Thrombosis Research and Expertise Center (TREC), Department of Clinical Medicine, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Thor Ueland
- K. G. Jebsen - Thrombosis Research and Expertise Center (TREC), Department of Clinical Medicine, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Pål Aukrust
- K. G. Jebsen - Thrombosis Research and Expertise Center (TREC), Department of Clinical Medicine, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- K. G. Jebsen - Inflammation Research Center, University of Oslo, Oslo, Norway
| | - Omri Snir
- K. G. Jebsen - Thrombosis Research and Expertise Center (TREC), Department of Clinical Medicine, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Kristian Hindberg
- K. G. Jebsen - Thrombosis Research and Expertise Center (TREC), Department of Clinical Medicine, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Sigrid K Braekkan
- K. G. Jebsen - Thrombosis Research and Expertise Center (TREC), Department of Clinical Medicine, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
- Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Peter Garred
- Laboratory of Molecular Medicine, Department of Clinical Immunology, Section 7631, Rigshospitalet, Copenhagen, Denmark
| | - Tom E Mollnes
- K. G. Jebsen - Thrombosis Research and Expertise Center (TREC), Department of Clinical Medicine, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
- Department of Immunology, Oslo University Hospital and University of Oslo, Oslo, Norway
- Research Laboratory, Nordland Hospital, Bodø, Norway
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway
| | - John-Bjarne Hansen
- K. G. Jebsen - Thrombosis Research and Expertise Center (TREC), Department of Clinical Medicine, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
- Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
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17
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Orsini F, Fumagalli S, Császár E, Tóth K, De Blasio D, Zangari R, Lénárt N, Dénes Á, De Simoni MG. Mannose-Binding Lectin Drives Platelet Inflammatory Phenotype and Vascular Damage After Cerebral Ischemia in Mice via IL (Interleukin)-1α. Arterioscler Thromb Vasc Biol 2019; 38:2678-2690. [PMID: 30354247 PMCID: PMC6221395 DOI: 10.1161/atvbaha.118.311058] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Supplemental Digital Content is available in the text. Objective— Circulating complement factors are activated by tissue damage and contribute to acute brain injury. The deposition of MBL (mannose-binding lectin), one of the initiators of the lectin complement pathway, on the cerebral endothelium activated by ischemia is a major pathogenic event leading to brain injury. The molecular mechanisms through which MBL influences outcome after ischemia are not understood yet. Approach and Results— Here we show that MBL-deficient (MBL−/−) mice subjected to cerebral ischemia display better flow recovery and less plasma extravasation in the brain than wild-type mice, as assessed by in vivo 2-photon microscopy. This results in reduced vascular dysfunction as shown by the shift from a pro- to an anti-inflammatory vascular phenotype associated with MBL deficiency. We also show that platelets directly bind MBL and that platelets from MBL−/− mice have reduced inflammatory phenotype as indicated by reduced IL-1α (interleukin-1α) content, as early as 6 hours after ischemia. Cultured human brain endothelial cells subjected to oxygen-glucose deprivation and exposed to platelets from MBL−/− mice present less cell death and lower CXCL1 (chemokine [C-X-C motif] ligand 1) release (downstream to IL-1α) than those exposed to wild-type platelets. In turn, MBL deposition on ischemic vessels significantly decreases after ischemia in mice treated with IL-1 receptor antagonist compared with controls, indicating a reciprocal interplay between MBL and IL-1α facilitating endothelial damage. Conclusions— We propose MBL as a hub of pathogenic vascular events. It acts as an early trigger of platelet IL-1α release, which in turn favors MBL deposition on ischemic vessels promoting an endothelial pro-inflammatory phenotype.
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Affiliation(s)
- Franca Orsini
- From the Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy (F.O., S.F., D.D.B., R.Z., M.-G.D.S.)
| | - Stefano Fumagalli
- From the Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy (F.O., S.F., D.D.B., R.Z., M.-G.D.S.)
| | - Eszter Császár
- Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary (E.C., K.T., N.L., A.D.)
| | - Krisztina Tóth
- Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary (E.C., K.T., N.L., A.D.)
| | - Daiana De Blasio
- From the Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy (F.O., S.F., D.D.B., R.Z., M.-G.D.S.)
| | - Rosalia Zangari
- From the Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy (F.O., S.F., D.D.B., R.Z., M.-G.D.S.)
| | - Nikolett Lénárt
- Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary (E.C., K.T., N.L., A.D.)
| | - Ádám Dénes
- Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary (E.C., K.T., N.L., A.D.)
| | - Maria-Grazia De Simoni
- From the Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy (F.O., S.F., D.D.B., R.Z., M.-G.D.S.)
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18
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Zhang J, Ye J, Ren Y, Zuo J, Dai W, He Y, Tan M, Song W, Yuan Y. Intracellular activation of complement C3 in Paneth cells improves repair of intestinal epithelia during acute injury. Immunotherapy 2018; 10:1325-1336. [PMID: 30381988 DOI: 10.2217/imt-2018-0122] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM To explore whether Paneth cells (PCs) and complement system collaborate in the repair of enteric epithelia during acute gastrointestinal injury (AGI). METHODS Wild-type C57BL/6 mice were employed to induce AGI by performing colon ascendens stent surgery, with sham-operated as control. Exogenous C3 treatment was applied at 6-h postsurgery. After 48 h, overall survival, intestinal damage severity, and C3 intracellular activation were assessed in both epithelial cells and PCs. RESULTS AGI caused a high mortality, while C3 therapy significantly attenuated epithelial damages and improved survival. Besides, exogenous C3 in vitro enhanced the proliferation and activity of PCs. Importantly, intracellular C3 activation was observed inside of PCs under C3 co-stimulation in vitro. CONCLUSION C3 immunotherapy might play a valuable role in turnover of gut epithelia through intracellular activation in PCs.
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Affiliation(s)
- Jian Zhang
- Center of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Jinning Ye
- Center of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Yufeng Ren
- Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Jidong Zuo
- Center of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Weigang Dai
- Center of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Yulong He
- Center of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, PR China.,Center of Gastric Cancer, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Min Tan
- Center of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Wu Song
- Center of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, PR China.,Center of Gastric Cancer, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Yujie Yuan
- Center of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, PR China.,Center of Gastric Cancer, Sun Yat-sen University, Guangzhou 510080, PR China
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19
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Zou C, Han C, Zhao M, Yu J, Bai L, Yao Y, Gao S, Cao H, Zheng Z. Change of ranibizumab-induced human vitreous protein profile in patients with proliferative diabetic retinopathy based on proteomics analysis. Clin Proteomics 2018. [PMID: 29541006 PMCID: PMC5844103 DOI: 10.1186/s12014-018-9187-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Preoperative treatment of anti-vascular endothelial growth factor (VEGF) agents is extensively used in proliferative diabetic retinopathy (PDR), but the molecular mechanism is not fully understood. The objective of this research is to observe change of protein profile induced by ranibizumab (an anti-VEGF agent) in vitreous humor from PDR patients and reveal the effects of anti-VEGF treatment on PDR. Methods A proteomic method was used to identify differentially expressed proteins in vitreous humor. Untreated PDR patients were defined as PDR group, while those who treated with intravitreal injection of ranibizumab (IVR) were defined as IVR. Gene Ontology (GO) annotation and REACTOME pathways were obtained from DAVID Bioinformatics Resources. Intravitreal level of apolipoprotein C-I (APOC1), serpin peptidase inhibitor clade A member 5 (SERPINA5), tissue inhibitor of metalloproteinases (TIMP2), and keratin 1 (KRT1) were determined by enzyme-linked immuno sorbent assay (ELISA). Results 339 differentially expressed proteins were identified in response to IVR. The most notable GO annotation describes the altered proteins was “innate immune response”. The most notable REACTOME pathway was “platelet degranulation”. ELISA result showed increased level of APOC1, SERPINA5, KRT1 and a decreased level of TIMP2 in PDR group compared with IVR. Conclusions In addition to decreasing VEGF level, ranibizumab is associated with change of human vitreous protein profile in patients with PDR, in which the differential proteins are involved in immune response, platelet degranulation, complement activation etc., suggesting that the effects of VEGF are involved in these signaling pathways. Electronic supplementary material The online version of this article (10.1186/s12014-018-9187-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chen Zou
- 1Department of Ophthalmology, Shanghai General Hospital, Shanghai Key Laboratory of Ocular Fundus Disease, Shanghai Engineering Center for Visual Science and Photomedicine, No. 100 Haining Road, Shanghai, 200080 China
| | - Changjing Han
- 2Department of Ophthalmology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004 Shaanxi Province China
| | - Minjie Zhao
- 3Department of Ophthalmology, Yixing People's Hospital, Jiangsu University, No.75 Tongzhenguan Road, Yixing, 214200 Jiangsu China
| | - Jingjing Yu
- Department of Ophthalmology, Changshu the 2nd People's Hospital, Changshu, 215500 Jiangsu China
| | - Lin Bai
- 1Department of Ophthalmology, Shanghai General Hospital, Shanghai Key Laboratory of Ocular Fundus Disease, Shanghai Engineering Center for Visual Science and Photomedicine, No. 100 Haining Road, Shanghai, 200080 China
| | - Yuan Yao
- 5Public Health, Stanford University, Stanford, CA 94305 USA
| | - Shuaixin Gao
- 6National Center for Protein Science Shanghai, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 333 Haike Road, Shanghai, 201210 China
| | - Hui Cao
- 1Department of Ophthalmology, Shanghai General Hospital, Shanghai Key Laboratory of Ocular Fundus Disease, Shanghai Engineering Center for Visual Science and Photomedicine, No. 100 Haining Road, Shanghai, 200080 China
| | - Zhi Zheng
- 1Department of Ophthalmology, Shanghai General Hospital, Shanghai Key Laboratory of Ocular Fundus Disease, Shanghai Engineering Center for Visual Science and Photomedicine, No. 100 Haining Road, Shanghai, 200080 China
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20
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Koch M, Umek W, Hanzal E, Mohr T, Seyfert S, Koelbl H, Mitulović G. Serum proteomic pattern in female stress urinary incontinence. Electrophoresis 2018; 39:1071-1078. [DOI: 10.1002/elps.201700423] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/27/2017] [Accepted: 01/16/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Marianne Koch
- Clinical Division of General Gynecology and Gynecological Oncology; Department of Obstetrics and Gynecology; Medical University of Vienna; Vienna Austria
- Karl Landsteiner Society; St. Poelten Austria
| | - Wolfgang Umek
- Clinical Division of General Gynecology and Gynecological Oncology; Department of Obstetrics and Gynecology; Medical University of Vienna; Vienna Austria
- Karl Landsteiner Society; St. Poelten Austria
| | - Engelbert Hanzal
- Clinical Division of General Gynecology and Gynecological Oncology; Department of Obstetrics and Gynecology; Medical University of Vienna; Vienna Austria
| | - Thomas Mohr
- ScienceConsult- DI Thomas Mohr KG; Guntramsdorf Austria
| | - Sonja Seyfert
- Core Facility Proteomics; Clinical Institute of Laboratory Medicine; Medical University of Vienna; Vienna Austria
| | - Heinz Koelbl
- Clinical Division of General Gynecology and Gynecological Oncology; Department of Obstetrics and Gynecology; Medical University of Vienna; Vienna Austria
| | - Goran Mitulović
- Core Facility Proteomics; Clinical Institute of Laboratory Medicine; Medical University of Vienna; Vienna Austria
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21
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Chun N, Fairchild RL, Li Y, Liu J, Zhang M, Baldwin WM, Heeger PS. Complement Dependence of Murine Costimulatory Blockade-Resistant Cellular Cardiac Allograft Rejection. Am J Transplant 2017; 17:2810-2819. [PMID: 28444847 PMCID: PMC5912159 DOI: 10.1111/ajt.14328] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 04/03/2017] [Accepted: 04/20/2017] [Indexed: 01/25/2023]
Abstract
Building on studies showing that ischemia-reperfusion-(I/R)-injury is complement dependent, we tested links among complement activation, transplantation-associated I/R injury, and murine cardiac allograft rejection. We transplanted BALB/c hearts subjected to 8-h cold ischemic storage (CIS) into cytotoxic T-lymphocyte associated protein 4 (CTLA4)Ig-treated wild-type (WT) or c3-/- B6 recipients. Whereas allografts subjected to 8-h CIS rejected in WT recipients with a median survival time (MST) of 37 days, identically treated hearts survived >60 days in c3-/- mice (p < 0.05, n = 4-6/group). Mechanistic studies showed recipient C3 deficiency prevented induction of intragraft and serum chemokines/cytokines and blunted the priming, expansion, and graft infiltration of interferon-γ-producing, donor-reactive T cells. MST of hearts subjected to 8-h CIS was >60 days in mannose binding lectin (mbl1-/- mbl2-/- ) recipients and 42 days in factor B (cfb-/- ) recipients (n = 4-6/group, p < 0.05, mbl1-/- mbl2-/- vs. cfb-/- ), implicating the MBL (not alternative) pathway. To pharmacologically target MBL-initiated complement activation, we transplanted BALB/c hearts subjected to 8-h CIS into CTLA4Ig-treated WT B6 recipients with or without C1 inhibitor (C1-INH). Remarkably, peritransplantation administration of C1-INH prolonged graft survival (MST >60 days, p < 0.05 vs. controls, n = 6) and prevented CI-induced increases in donor-reactive, IFNγ-producing spleen cells (p < 0.05). These new findings link donor I/R injury to T cell-mediated rejection through MBL-initiated, complement activation and support testing C1-INH administration to prevent CTLA4Ig-resistant rejection of deceased donor allografts in human transplant patients.
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Affiliation(s)
- N Chun
- Department of Medicine, Translational Transplant Research Center, Recanati Miller Transplant Institute, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - R L Fairchild
- Department of Immunology, Cleveland Clinic, Cleveland, OH
| | - Y Li
- Department of Medicine, Translational Transplant Research Center, Recanati Miller Transplant Institute, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - J Liu
- Department of Medicine, Translational Transplant Research Center, Recanati Miller Transplant Institute, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - M Zhang
- SUNY Downstate Medical Center, Brooklyn, NY
| | - W M Baldwin
- Department of Immunology, Cleveland Clinic, Cleveland, OH
| | - P S Heeger
- Department of Medicine, Translational Transplant Research Center, Recanati Miller Transplant Institute, Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY
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22
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Thurman JM. Many drugs for many targets: novel treatments for complement-mediated glomerular disease. Nephrol Dial Transplant 2017; 32:i57-i64. [PMID: 28391332 DOI: 10.1093/ndt/gfw228] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 05/10/2016] [Indexed: 01/04/2023] Open
Abstract
There is a large body of experimental and clinical evidence that complement activation contributes to glomerular injury in multiple different diseases. However, the underlying mechanisms that trigger complement activation vary from disease to disease. Immune complexes activate the classical pathway of complement in many types of glomerulonephritis, whereas the alternative pathway and mannose-binding lectin pathways are directly activated in some diseases. Eculizumab is an inhibitory antibody to C5 that has been approved for the treatment of atypical hemolytic uremic syndrome, and case reports suggest that it is also effective in other types of glomerulonephritis. Furthermore, new complement-inhibitory drugs are being developed that target additional proteins within the complement cascade, raising the possibility of blocking the specific complement proteins involved in a given disease. This review examines the rationale for targeting different proteins within the complement cascade, the new anti-complement drugs currently in development and some of the challenges that investigators will face in bringing these drugs to the clinic.
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Affiliation(s)
- Joshua M Thurman
- Department of Medicine, Division of Nephrology and Hypertension, University of Colorado School of Medicine, Aurora, CO, USA
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23
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Medeiros FS, Mendonça TFD, Lopes KADM, França LMDC, Silva ASD, Vasconcelos LRS, Oliveira MDCVCD, Anjos ACMD, Hatzlhofer BLD, Bezerra MAC, Araújo ADS, Moura P, Cavalcanti MDSDM. Combined genotypes of the MBL2 gene related to low mannose-binding lectin levels are associated with vaso-occlusive events in children with sickle cell anemia. Genet Mol Biol 2017; 40:600-603. [PMID: 28837214 PMCID: PMC5596363 DOI: 10.1590/1678-4685-gmb-2016-0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 02/25/2017] [Indexed: 11/22/2022] Open
Abstract
Sickle cell anemia (SCA) presents heterogenous clinical manifestations that cannot be explained solely by alterations to hemoglobin (Hb); other components such as endothelial adhesion, thrombosis and inflammation may be involved. The mannose-binding lectin (MBL) has an important role in innate immunity and inflammatory diseases. In this report, we describe an association between MBL2 polymorphism related to low production of serum MBL and the frequency of vasoocclusive events (FVOE) in children ≤ 5 years old with SCA (p = 0.0229; OR 5.55; CI 1.11-27.66). Further studies are needed to explore the role of low MBL2 in the pathophysiology of vasoocclusive events in SCA.
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Affiliation(s)
- Fernanda Silva Medeiros
- Instituto de Ciências Biológicas/Faculdade de Ciências Médicas, Universidade de Pernambuco, Recife, PE, Brazil
| | - Taciana Furtado de Mendonça
- Programa de Pós-graduação em Biotecnologia (RENORBIO), Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | | | | | - Andreia Soares da Silva
- Instituto de Ciências Biológicas/Faculdade de Ciências Médicas, Universidade de Pernambuco, Recife, PE, Brazil
| | | | | | | | | | | | | | - Patrícia Moura
- Instituto de Ciências Biológicas/Faculdade de Ciências Médicas, Universidade de Pernambuco, Recife, PE, Brazil
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24
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Heo SH, Kang E, Kim YM, Go H, Kim KY, Jung JY, Kang M, Kim GH, Kim JM, Choi IH, Choi JH, Jung SC, Desnick RJ, Yoo HW, Lee BH. Fabry disease: characterisation of the plasma proteome pre- and post-enzyme replacement therapy. J Med Genet 2017; 54:771-780. [PMID: 28835480 PMCID: PMC5740533 DOI: 10.1136/jmedgenet-2017-104704] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/05/2017] [Accepted: 07/24/2017] [Indexed: 01/03/2023]
Abstract
Background Fabry disease is characterised by the progressive accumulation of globotriaosylceramide (Gb3) and related glycosphingolipids in vascular endothelial cells. Enzyme replacement therapy (ERT) clears this accumulation. We analysed plasma proteome profiles before and after ERT to characterise its molecular pathology. Methods Two-dimensional electrophoresis and matrix-assisted laser desorption/ionisation-time of flight tandem mass spectrometry (MALDI-TOF MS) and tandem mass spectrometry (MS/MS) were done using plasma samples before and after ERT in eight patients with classical Fabry disease Results After short-term ERT (4–12 months), the levels of 15 plasma proteins involved in inflammation, oxidative and ischaemic injury, or complement activation were reduced significantly. Among them, β-actin (ACTB), inactivated complement C3b (iC3b), and C4B were elevated significantly in pre-ERT Fabry disease plasma compared with control plasma. After longer-term ERT (46–96 months), iC3b levels gradually decreased, whereas the levels of other proteins varied. The gradual reduction of iC3b was comparable to that of Gb3 levels. In addition, iC3b increased significantly in pre-ERT Fabry disease mouse plasma, and C3 deposits were notable in renal tissues of pre-enzyme replacement therapy patients. Conclusion These results indicated that C3-mediated complement activation might be altered in Fabry disease and ERT might promote its stabilisation.
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Affiliation(s)
- Sun Hee Heo
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eungu Kang
- Department of Pediatrics, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Yoon-Myung Kim
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
| | - Heounjeong Go
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | | | | | - Minji Kang
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Gu-Hwan Kim
- Medical Genetics Center, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae-Min Kim
- Medical Genetics Center, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
| | - In-Hee Choi
- Medical Genetics Center, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
| | - Jin-Ho Choi
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung-Chul Jung
- Department of Biochemistry, School of Medicine, Ewha Womans University, Seoul, Korea
| | - Robert J Desnick
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Han-Wook Yoo
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
| | - Beom Hee Lee
- Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea
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25
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Cernoch M, Viklicky O. Complement in Kidney Transplantation. Front Med (Lausanne) 2017; 4:66. [PMID: 28611987 PMCID: PMC5447724 DOI: 10.3389/fmed.2017.00066] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 05/09/2017] [Indexed: 12/12/2022] Open
Abstract
The complement system is considered to be an important part of innate immune system with a significant role in inflammation processes. The activation can occur through classical, alternative, or lectin pathway, resulting in the creation of anaphylatoxins C3a and C5a, possessing a vast spectrum of immune functions, and the assembly of terminal complement cascade, capable of direct cell lysis. The activation processes are tightly regulated; inappropriate activation of the complement cascade plays a significant role in many renal diseases including organ transplantation. Moreover, complement cascade is activated during ischemia/reperfusion injury processes and influences delayed graft function of kidney allografts. Interestingly, complement system has been found to play a role in both acute cellular and antibody-mediated rejections and thrombotic microangiopathy. Therefore, complement system may represent an interesting therapeutical target in kidney transplant pathologies.
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Affiliation(s)
- Marek Cernoch
- Transplant Laboratory, Transplant Center, Institute for Clinical and Experimental Medicine, Prague, Czechia
| | - Ondrej Viklicky
- Transplant Laboratory, Transplant Center, Institute for Clinical and Experimental Medicine, Prague, Czechia.,Department of Nephrology, Transplant Center, Institute for Clinical and Experimental Medicine, Prague, Czechia
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26
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Kosteria I, Tsangaris GT, Gkourogianni A, Anagnostopoulos A, Papadopoulou A, Papassotiriou I, Loutradis D, Chrousos GP, Kanaka-Gantenbein C. Proteomics of Children Born After Intracytoplasmic Sperm Injection Reveal Indices of an Adverse Cardiometabolic Profile. J Endocr Soc 2017; 1:288-301. [PMID: 29264487 PMCID: PMC5686695 DOI: 10.1210/js.2016-1052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 02/22/2017] [Indexed: 12/13/2022] Open
Abstract
CONTEXT Assisted reproduction technologies (ART), classic in vitro fertilization (IVF), and intracytoplasmic sperm injection (ICSI) are increasingly used. Several studies have demonstrated an unfavorable cardiometabolic profile of the ART offspring. Proteomics is a state-of-the-art technology used for the identification of early biomarkers of disease. OBJECTIVES To investigate the proteomic profile of children born after ICSI compared with naturally conceived (NC) controls in search of cardiometabolic risk markers. DESIGN Cross-sectional case-control study: qualitative, comparative proteomic plasma analysis. SETTING Pediatric Endocrinology and IVF Outpatient Clinics, University of Athens and the Biomedical Research Foundation of the Academy of Athens. PARTICIPANTS Forty-two sex- and age-matched couples of ICSI and NC children were assessed. Ten pairs additionally matched for birth weight and twin/single pregnancies were submitted to proteomic analysis. INTERVENTION Medical history, clinical examination, and blood biochemical, hormonal, and proteomic analyses. MAIN OUTCOME MEASURES (1) Differences in auxological and laboratory data between groups. (2) Differences in plasma proteomic profile in 10 individual pairs and pooled samples. RESULTS The ICSI group had shorter gestation, more cesarean sections, smaller birth weight/length, and advanced maternal age. No major differences were observed regarding biochemical markers. Proteomic analysis revealed 19 over- and three underexpressed proteins in ICSI. Most overexpressed proteins are implicated in acute-phase reaction, blood coagulation, complement pathway activation, and iron and lipid metabolism, suggesting a subclinical unfavorable cardiometabolic profile. CONCLUSIONS This study applies proteomics in ICSI-conceived children, providing evidence for an early adverse cardiometabolic profile and supporting the necessity of their long-term monitoring.
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Affiliation(s)
- Ioanna Kosteria
- Division of Endocrinology, Metabolism, and Diabetes, First Department of Pediatrics, and
| | - George Th Tsangaris
- Proteomics Research Unit, Biomedical Research Foundation of Academy of Athens, Athens 11527, Greece
| | - Alexandra Gkourogianni
- Division of Endocrinology, Metabolism, and Diabetes, First Department of Pediatrics, and
| | | | - Aggeliki Papadopoulou
- Proteomics Research Unit, Biomedical Research Foundation of Academy of Athens, Athens 11527, Greece
| | - Ioannis Papassotiriou
- Department of Clinical Biochemistry, Aghia Sophia Children's Hospital, Athens 11527, Greece
| | - Dimitrios Loutradis
- Division of In Vitro Fertilization, First Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens Medical School, Athens 11528, Greece
| | - George P Chrousos
- Division of Endocrinology, Metabolism, and Diabetes, First Department of Pediatrics, and
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27
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Analysis of Sera of Recipients with Allograft Rejection Indicates That Keratin 1 Is the Target of Anti-Endothelial Antibodies. J Immunol Res 2017; 2017:8679841. [PMID: 28265584 PMCID: PMC5318619 DOI: 10.1155/2017/8679841] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/04/2017] [Indexed: 11/24/2022] Open
Abstract
Anti-endothelial cell antibodies (AECAs) are usually directed against the surface antigens on the vascular endothelial cells. Clinical studies suggest a pathogenic role for nonhuman leukocyte antigen in antibody-mediated rejection; however, the antigens on the donor vascular endothelium that serve as the first-line targets for an immune response during allograft rejection have not been fully identified. Here, we used immunoprecipitation and mass spectrometry to identify antigens from the sera of kidney transplant recipients who were experiencing antibody-mediated rejection. Keratin 1 (KRT1) was identified as a novel antigenic target expressed on endothelial cells. To validate our finding, we produced recombinant proteins representing the three most common alleles of KRT1. The serum used for immunoprecipitation showed a strong reaction to KRT1 recombinants in western blot and ELISA. In the kidney transplant cohort, more AECA-positive recipients than AECA-negative recipients had KRT1 antibodies (32.2% versus 11.9%, p = 0.002). Sera from 255 renal recipients were tested by ELISA. Of the 77 recipients with deteriorating graft function (serum creatinine > 120 μmol/L), 23 had anti-KRT1 antibodies. KRT1-IgG positivity was, therefore, associated with a higher risk of kidney transplant rejection (29.9% (23/77) versus 16.9% (30/178), p = 0.0187). A better understanding of this antigenic target will improve long-term allograft survival.
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28
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Golshayan D, Wójtowicz A, Bibert S, Pyndiah N, Manuel O, Binet I, Buhler LH, Huynh-Do U, Mueller T, Steiger J, Pascual M, Meylan P, Bochud PY. Polymorphisms in the lectin pathway of complement activation influence the incidence of acute rejection and graft outcome after kidney transplantation. Kidney Int 2016; 89:927-38. [PMID: 26924055 DOI: 10.1016/j.kint.2015.11.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 09/26/2015] [Accepted: 11/12/2015] [Indexed: 01/01/2023]
Abstract
There are conflicting data on the role of the lectin pathway of complement activation and its recognition molecules in acute rejection and outcome after transplantation. To help resolve this we analyzed polymorphisms and serum levels of lectin pathway components in 710 consecutive kidney transplant recipients enrolled in the nationwide Swiss Transplant Cohort Study, together with all biopsy-proven rejection episodes and 1-year graft and patient survival. Functional mannose-binding lectin (MBL) levels were determined in serum samples, and previously described MBL2, ficolin 2, and MBL-associated serine protease 2 polymorphisms were genotyped. Low MBL serum levels and deficient MBL2 diplotypes were associated with a higher incidence of acute cellular rejection during the first year, in particular in recipients of deceased-donor kidneys. This association remained significant (hazard ratio 1.75, 95% confidence interval 1.18-2.60) in a Cox regression model after adjustment for relevant covariates. In contrast, there was no significant association with rates of antibody-mediated rejection, patient death, early graft dysfunction or loss. Thus, results in a prospective multicenter contemporary cohort suggest that MBL2 polymorphisms result in low MBL serum levels and are associated with acute cellular rejection after kidney transplantation. Since MBL deficiency is a relatively frequent trait in the normal population, our findings may lead to individual risk stratification and customized immunosuppression.
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Affiliation(s)
- Déla Golshayan
- Transplantation Center, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland; Transplantation Immunopathology Laboratory, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.
| | - Agnieszka Wójtowicz
- Service of Infectious Diseases, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Stéphanie Bibert
- Service of Infectious Diseases, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Nitisha Pyndiah
- Service of Infectious Diseases, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Oriol Manuel
- Transplantation Center, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland; Service of Infectious Diseases, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Isabelle Binet
- Nephrologie und Transplantationsmedizin, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Leo H Buhler
- Centre Universitaire Romand de Transplantation, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Uyen Huynh-Do
- Department of Nephrology and Hypertension, Inselspital Bern, Bern, Switzerland
| | - Thomas Mueller
- Department of Nephrology, University Hospital Zurich, Zurich, Switzerland
| | - Jürg Steiger
- Transplantation Immunology and Nephrology, University Hospital Basel, Basel, Switzerland
| | - Manuel Pascual
- Transplantation Center, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland; Transplantation Immunopathology Laboratory, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Pascal Meylan
- Transplantation Center, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland; Service of Infectious Diseases, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Pierre-Yves Bochud
- Service of Infectious Diseases, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
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Ghedira J, Chicano-Gálvez E, Fernández-Cisnal R, Jebali J, Banni M, Chouba L, Boussetta H, López-Barea J, Alhama J. Using environmental proteomics to assess pollutant response of Carcinus maenas along the Tunisian coast. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:109-118. [PMID: 26402481 DOI: 10.1016/j.scitotenv.2015.09.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/07/2015] [Accepted: 09/07/2015] [Indexed: 06/05/2023]
Abstract
Biochemical responses to pollutants were studied at four Tunisia littoral sites using Carcinus maenas as a bioindicator. Proteomic analysis was used to assess the global impact of complex pollution mixtures, and to provide new biomarkers and basic insights into pollutant toxicity. Metal contents and metallothionein levels followed a gradient based on sampling sites: Bizerte ≫ Teboulba > Gargour~Mahres. Approximately 900 and 700 spots were resolved in digestive glands and gills, respectively. Gills from Bizerte animals had the maximum number of altered spots, mostly upregulated. In other locations, the number of altered spots in gills decreased in parallel to total metals in in the following order: Teboulba > Gargour > Mahres (mostly downregulated). Out of the 39 spots excised, ten proteins were identified in digestive glands and eight in gills. Digestive glands of Bizerte crabs had higher levels of ferritin, three vitellogenin forms and mannose-binding protein, while Gargour crabs had higher levels of four cryptocyanin forms. Gills of Bizerte crabs had higher levels of ferritin, three vitellogenins forms, lectin 4C, actin, and collagenolytic serine protease. Proteins with altered expression in crabs from Tunisia littoral are related to molting, oxidative stress and inflammation, innate immune response, and proteolysis.
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Affiliation(s)
- Jihene Ghedira
- Laboratory of Biochemical and Environmental Toxicology, Higher Institute of Agriculture, Chott-Mariem, 4042 Sousse, Tunisia
| | - Eduardo Chicano-Gálvez
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14071 Córdoba, Spain
| | | | - Jamel Jebali
- Laboratory of Biochemical and Environmental Toxicology, Higher Institute of Agriculture, Chott-Mariem, 4042 Sousse, Tunisia
| | - Mohamed Banni
- Laboratory of Biochemical and Environmental Toxicology, Higher Institute of Agriculture, Chott-Mariem, 4042 Sousse, Tunisia
| | - Lassaad Chouba
- Chemical Laboratory, Higher Institute of Marine Sciences and Technology, La Goulette Center, 2060 Tunis, Tunisia
| | - Hamadi Boussetta
- Laboratory of Biochemical and Environmental Toxicology, Higher Institute of Agriculture, Chott-Mariem, 4042 Sousse, Tunisia
| | - Juan López-Barea
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14071 Córdoba, Spain.
| | - José Alhama
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14071 Córdoba, Spain
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Chu YC, Huang KT. Keratin-1 is a novel binding protein for C-reactive protein on the membrane of endothelial cells. J Taiwan Inst Chem Eng 2015. [DOI: 10.1016/j.jtice.2015.04.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Saavedra P, Girona J, Bosquet A, Guaita S, Canela N, Aragonès G, Heras M, Masana L. New insights into circulating FABP4: Interaction with cytokeratin 1 on endothelial cell membranes. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1853:2966-74. [PMID: 26343611 DOI: 10.1016/j.bbamcr.2015.09.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 08/07/2015] [Accepted: 09/03/2015] [Indexed: 01/12/2023]
Abstract
Fatty acid-binding protein 4 (FABP4) is an adipose tissue-secreted adipokine that is involved in the regulation of energetic metabolism and inflammation. Increased levels of circulating FABP4 have been detected in individuals with cardiovascular risk factors. Recent studies have demonstrated that FABP4 has a direct effect on peripheral tissues, specifically promoting vascular dysfunction; however, its mechanism of action is unknown. The objective of this work was to assess the specific interactions between exogenous FABP4 and the plasma membranes of endothelial cells. Immunofluorescence assays showed that exogenous FABP4 localized along the plasma membranes of human umbilical vein endothelial cells (HUVECs), interacting specifically with plasma membrane proteins. Anti-FABP4 immunoblotting revealed two covalent protein complexes containing FABP4 and its putative receptor; these complexes were approximately 108 kDa and 77 kDa in size. Proteomics and mass spectrometry experiments revealed that cytokeratin 1 (CK1) was the FABP4-binding protein. An anti-CK1 immunoblot confirmed the presence of CK1. FABP4-CK1 complexes were also detected in HAECs, HCASMCs, HepG2 cells and THP-1 cells. Pharmacological FABP4 inhibition by BMS309403 results in a slight decrease in the formation of these complexes, indicating that fatty acids may play a role in FABP4 functionality. In addition, we demonstrated that exogenous FABP4 crosses the plasma membrane to enter the cytoplasm and nucleus in HUVECs. These findings indicate that exogenous FABP4 interacts with plasma membrane proteins, specifically CK1. These data contribute to our current knowledge regarding the mechanism of action of circulating FABP4.
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Affiliation(s)
- Paula Saavedra
- Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, IISPV, CIBERDEM, Universitat Rovira i Virgili, Reus, Spain
| | - Josefa Girona
- Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, IISPV, CIBERDEM, Universitat Rovira i Virgili, Reus, Spain
| | - Alba Bosquet
- Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, IISPV, CIBERDEM, Universitat Rovira i Virgili, Reus, Spain
| | - Sandra Guaita
- Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, IISPV, CIBERDEM, Universitat Rovira i Virgili, Reus, Spain
| | - Núria Canela
- Centre for Omics Science, Universitat Rovira i Virgili, Reus, Spain
| | - Gemma Aragonès
- Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, IISPV, CIBERDEM, Universitat Rovira i Virgili, Reus, Spain
| | - Mercedes Heras
- Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, IISPV, CIBERDEM, Universitat Rovira i Virgili, Reus, Spain
| | - Lluís Masana
- Research Unit on Lipids and Atherosclerosis, "Sant Joan" University Hospital, IISPV, CIBERDEM, Universitat Rovira i Virgili, Reus, Spain.
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Olausson P, Gerdle B, Ghafouri N, Sjöström D, Blixt E, Ghafouri B. Protein alterations in women with chronic widespread pain--An explorative proteomic study of the trapezius muscle. Sci Rep 2015; 5:11894. [PMID: 26150212 PMCID: PMC4493691 DOI: 10.1038/srep11894] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Accepted: 06/09/2015] [Indexed: 12/18/2022] Open
Abstract
Chronic widespread pain (CWP) has a high prevalence in the population and is associated with prominent negative individual and societal consequences. There is no clear consensus concerning the etiology behind CWP although alterations in the central processing of nociception maintained by peripheral nociceptive input has been suggested. Here, we use proteomics to study protein changes in trapezius muscle from 18 female patients diagnosed with CWP compared to 19 healthy female subjects. The 2-dimensional gel electrophoresis (2-DE) in combination with multivariate statistical analyses revealed 17 proteins to be differently expressed between the two groups. Proteins were identified by mass spectrometry. Many of the proteins are important enzymes in metabolic pathways like the glycolysis and gluconeogenesis. Other proteins are associated with muscle damage, muscle recovery, stress and inflammation. The altered expressed levels of these proteins suggest abnormalities and metabolic changes in the myalgic trapezius muscle in CWP. Taken together, this study gives further support that peripheral factors may be of importance in maintaining CWP.
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Affiliation(s)
- Patrik Olausson
- Division of Community Medicine, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University and Pain and Rehabilitation Center, Anaesthetics, Operations and Specialty Surgery Center, Region Östergötland
| | - Björn Gerdle
- Division of Community Medicine, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University and Pain and Rehabilitation Center, Anaesthetics, Operations and Specialty Surgery Center, Region Östergötland
| | - Nazdar Ghafouri
- Division of Community Medicine, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University and Pain and Rehabilitation Center, Anaesthetics, Operations and Specialty Surgery Center, Region Östergötland
| | - Dick Sjöström
- Division of Community Medicine, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University and Pain and Rehabilitation Center, Anaesthetics, Operations and Specialty Surgery Center, Region Östergötland
| | - Emelie Blixt
- Division of Community Medicine, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University and Pain and Rehabilitation Center, Anaesthetics, Operations and Specialty Surgery Center, Region Östergötland
| | - Bijar Ghafouri
- Division of Community Medicine, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University and Pain and Rehabilitation Center, Anaesthetics, Operations and Specialty Surgery Center, Region Östergötland
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Ferraris JR, Ferraris V, Acquier AB, Sorroche PB, Saez MS, Ginaca A, Mendez CF. Activation of the alternative pathway of complement during the acute phase of typical haemolytic uraemic syndrome. Clin Exp Immunol 2015; 181:118-25. [PMID: 25677399 DOI: 10.1111/cei.12601] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 01/16/2015] [Accepted: 01/30/2015] [Indexed: 11/29/2022] Open
Abstract
Haemolytic uraemic syndrome (HUS) is characterized by haemolytic anaemia, thrombocytopenia and acute renal failure. We studied the activation state of classical and alternative pathways of complement during the acute phase of Shiga toxin-associated HUS by performing a prospective study of 18 patients and 17 age-matched healthy controls to evaluate C3, C3c, C4, C4d, Bb and SC5b-9 levels. SC5b-9 levels were increased significantly in all patients at admission compared to healthy and end-stage renal disease controls, but were significantly higher in patients presenting with oliguria compared to those with preserved diuresis. C3 and C4 levels were elevated significantly at admission in the non-oliguric group when compared to controls. No significant differences were found for C4d values, whereas factor Bb was elevated in all patients and significantly higher in oliguric patients when compared to both controls and non-oliguric individuals. A positive and significant association was detected when Bb formation was plotted as a function of plasma SC5b-9 at admission. Bb levels declined rapidly during the first week, with values not significantly different from controls by days 3 and 5 for non-oligurics and oligurics, respectively. Our data demonstrate the activation of the alternative pathway of complement during the acute phase of Stx-associated HUS. This finding suggests that complement activation may represent an important trigger for the cell damage that occurs during the syndrome.
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Affiliation(s)
- J R Ferraris
- Pediatric Nephrology Service, Hospital Italiano.,Department of Pediatrics, School of Medicine, University of Buenos Aires
| | - V Ferraris
- Pediatric Nephrology Service, Hospital Italiano
| | - A B Acquier
- Pharmacology Unit, School of Dentistry, University of Buenos Aires.,Institute for Biomedical Research (INBIOMED), School of Medicine, University of Buenos Aires and National Scientific and Technical Research Council
| | | | - M S Saez
- Central Laboratory, Hospital Italiano
| | - A Ginaca
- Immunology Service, Hospital de Niños Ricardo Gutierrez, Buenos Aires, Argentina
| | - C F Mendez
- Pharmacology Unit, School of Dentistry, University of Buenos Aires.,Institute for Biomedical Research (INBIOMED), School of Medicine, University of Buenos Aires and National Scientific and Technical Research Council
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Bhattacharya S, Ghosh MK. HAUSP regulates c-MYC expression via de-ubiquitination of TRRAP. Cell Oncol (Dordr) 2015; 38:265-77. [PMID: 25925205 DOI: 10.1007/s13402-015-0228-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2015] [Indexed: 11/24/2022] Open
Abstract
PURPOSE The de-ubiquitinase HAUSP has been reported to exhibit various biological roles implicated in the development of cancer and other pathologies. The dual nature of HAUSP (i.e., oncogenic and tumor suppressive) makes the protein even more versatile. The major aims of this study were to reveal the effect of HAUSP over-expression on the overall proteome and to identify bona fide substrates of HAUSP. In addition, we aimed to unravel the functionality and physiological relevance of the de-ubiquitinating activity of HAUSP on one of its newly identified substrates, TRRAP. METHODS An overall proteome analysis was performed after exogenous HAUSP over-expression in HEK293 cells, followed by 2-dimensional gel electrophoresis (2-DE). Interacting proteins were subsequently isolated using immunoprecipitation and 1-dimensional gel electrophoresis (1-DE). Both were followed by tandem MALDI-TOF/TOF mass spectrometry and gene ontology-based analyses. To validate the functionality of one of the identified substrates (TRRAP), Western blotting, immunocytochemistry, immunoprecipitation, in vivo de-ubiquitination, quantitative real-time PCR and luciferase assays were performed. RESULTS The substrate screening indicated that HAUSP may be involved in tumorigenesis, cytoskeletal organization and transport, and chaperone systems. One candidate substrate, TRRAP, was found to physically interact and co-localize with HAUSP. As TRRAP regulates c-MYC expression, and in order to validate the effect of HAUSP on TRRAP, c-MYC protein and mRNA expression levels were analyzed after exogenous HAUSP over-expression. Both were found to be up-regulated. We also found that c-MYC transactivation increased upon exogenous HAUSP over-expression. By using a luciferase reporter assay, we found that a c-MYC responsive promoter exhibited increased activity, which was subsequently abrogated upon TRRAP knockdown. CONCLUSIONS From our results we conclude that HAUSP may act as an oncogenic protein that can modulate c-MYC expression via TRRAP. Our results provide a new context in which HAUSP may play a role in cancer cell signalling.
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Affiliation(s)
- Seemana Bhattacharya
- Signal Transduction in Cancer and Stem Cells Laboratory, Division of Cancer Biology and Inflammatory Disorder, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700 032, India
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Targeting mechanisms at sites of complement activation for imaging and therapy. Immunobiology 2015; 221:726-32. [PMID: 25979851 DOI: 10.1016/j.imbio.2015.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Accepted: 04/20/2015] [Indexed: 01/24/2023]
Abstract
The complement system plays a key role in many acute injury states as well as chronic autoimmune and inflammatory diseases. Localized complement activation and alternative pathway-mediated amplification on diverse target surfaces promote local recruitment of pro-inflammatory cells and elaboration of other mediators. Despite a general understanding of the architecture of the system, though, many of the mechanisms that underlie site-specific complement activation and amplification in vivo are incompletely understood. In addition, there is no capability yet to measure the level of local tissue site-specific complement activation in patients without performing biopsies to detect products using immunohistochemical techniques. Herein is reviewed emerging evidence obtained through clinical research studies of human rheumatoid arthritis along with translational studies of its disease models which demonstrate that several parallel mechanisms are involved in site-specific amplification of activation of the complement system in vivo. Among these processes are de-regulation of the alternative pathway, effector pathway-catalyzed amplification of proximal complement activation, recognition of injury-associated ligands by components of the lectin pathway, and engagement of pathogenic natural antibodies that recognize a limited set of injury-associated neoepitopes. Studies suggest that each of these inter-related processes can play key roles in amplification of complement-dependent injury on self-tissues in vivo. These findings, in addition to development of an imaging strategy described herein designed to quantitatively measure local complement C3 fixation, have relevance to therapeutic and diagnostic strategies targeting the complement system.
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Kim SH, Bae SJ, Palikhe S, Ye YM, Park HS. Effects of MBL2 polymorphisms in patients with diisocyanate-induced occupational asthma. Exp Mol Med 2015; 47:e157. [PMID: 25857450 DOI: 10.1038/emm.2015.10] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 10/29/2014] [Accepted: 12/12/2014] [Indexed: 11/09/2022] Open
Abstract
Diisocyanate (DI) is the most common cause of occupational asthma (OA) in Korea. Mannose-binding lectin (MBL) initiates the lectin complement activation pathway following oxidative stress and plays an important role in the regulation of inflammatory processes. To determine whether there is a genetic association between MBL2 polymorphisms and DI-OA, 99 patients with DI-OA, 99 asymptomatic exposed controls (AECs) and 144 unexposed normal controls were enrolled in this study. Three polymorphisms (-554 G>C, -431A>C and -225 G>C) in the MBL2 promoter were genotyped, and serum MBL levels were determined by enzyme-linked immunosorbent assay. Functional variabilities in the promoter polymorphisms were analyzed by a luciferase reporter assay and electrophoretic mobility shift assay (EMSA). A significantly higher frequency of haplotype (ht) 2 [CAG] was noted in the DI-OA group compared with the AEC group (P=0.044). The patients with DI-OA carrying ht2 [CAG] had significantly lower PC20 methacholine levels (P<0.001) than the non-carriers. The serum MBL levels were significantly higher in the DI-exposed subjects (both the DI-OA patients and AECs) carrying ht1 [GAG] (P=0.028). Luciferase activity was significantly enhanced in ht1 [GAG] compared with ht2 [CAG] in human hepatocarcinoma cells (Hep3B) (P=0.002). The EMSA showed that a -554G probe produced a specific shifted band compared with the -554C probe. These findings suggest that decreased serum MBL levels due to polymorphisms of the MBL2 gene may increase susceptibility to the development of DI-OA in DI-exposed individuals.
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Affiliation(s)
- Seung-Hyun Kim
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea
| | - Su-Jin Bae
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea
| | - Sailesh Palikhe
- 1] Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea [2] Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, South Korea
| | - Young-Min Ye
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea
| | - Hae-Sim Park
- 1] Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea [2] Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, South Korea
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Derry MM, Somasagara RR, Raina K, Kumar S, Gomez J, Patel M, Agarwal R, Agarwal C. Target identification of grape seed extract in colorectal cancer using drug affinity responsive target stability (DARTS) technique: role of endoplasmic reticulum stress response proteins. Curr Cancer Drug Targets 2015; 14:323-36. [PMID: 24724981 DOI: 10.2174/1568009614666140411101942] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 04/10/2014] [Accepted: 04/10/2014] [Indexed: 12/21/2022]
Abstract
Various natural agents, including grape seed extract (GSE), have shown considerable chemopreventive and anti-cancer efficacy against different cancers in pre-clinical studies; however, their specific protein targets are largely unknown and thus, their clinical usefulness is marred by limited scientific evidences about their direct cellular targets. Accordingly, herein, employing, for the first time, the recently developed drug affinity responsive target stability (DARTS) technique, we aimed to profile the potential protein targets of GSE in human colorectal cancer (CRC) cells. Unlike other methods, which can cause chemical alteration of the drug components to allow for detection, this approach relies on the fact that a drug bound protein may become less susceptible to proteolysis and hence the enriched proteins can be detected by Mass Spectroscopy methods. Our results, utilizing the DARTS technique followed by examination of the spectral output by LC/MS and the MASCOT data, revealed that GSE targets endoplasmic reticulum (ER) stress response proteins resulting in overall down regulation of proteins involved in translation and that GSE also causes oxidative protein modifications, specifically on methionine amino acids residues on its protein targets. Corroborating these findings, mechanistic studies revealed that GSE indeed caused ER stress and strongly inhibited PI3k-Akt-mTOR pathway for its biological effects in CRC cells. Furthermore, bioenergetics studies indicated that GSE also interferes with glycolysis and mitochondrial metabolism in CRC cells. Together, the present study identifying GSE molecular targets in CRC cells, combined with its efficacy in vast pre-clinical CRC models, further supports its usefulness for CRC prevention and treatment.
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Affiliation(s)
| | | | | | | | | | | | | | - Chapla Agarwal
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E. Montview Blvd, C238, Room V20-2118, Aurora, CO 80045, USA.
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Larina IM, Pastushkova LK, Tiys ES, Kireev KS, Kononikhin AS, Starodubtseva NL, Popov IA, Custaud MA, Dobrokhotov IV, Nikolaev EN, Kolchanov NA, Ivanisenko VA. Permanent proteins in the urine of healthy humans during the Mars-500 experiment. J Bioinform Comput Biol 2015; 13:1540001. [PMID: 25572715 DOI: 10.1142/s0219720015400016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Urinary proteins serve as indicators of various conditions in human normal physiology and disease pathology. Using mass spectrometry proteome analysis, the permanent constituent of the urine was examined in the Mars-500 experiment (520 days isolation of healthy volunteers in a terrestrial complex with an autonomous life support system). Seven permanent proteins with predominant distribution in the liver and blood plasma as well as extracellular localization were identified. Analysis of the overrepresentation of the molecular functions and biological processes based on Gene Ontology revealed that the functional association among these proteins was low. The results showed that the identified proteins may be independent markers of the various conditions and processes in healthy humans and that they can be used as standards in determination of the concentration of other proteins in the urine.
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Affiliation(s)
- Irina M Larina
- Institute for Biomedical Problems - Russian Federation State, Scientific Research Center Russian Academy of Sciences, Moscow 123007, Russia , CaDyWEC International Laboratory, Angers Faculty of Medicine, 49045 Angers Cedex 01, France
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Orsini F, De Blasio D, Zangari R, Zanier ER, De Simoni MG. Versatility of the complement system in neuroinflammation, neurodegeneration and brain homeostasis. Front Cell Neurosci 2014; 8:380. [PMID: 25426028 PMCID: PMC4224073 DOI: 10.3389/fncel.2014.00380] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 10/22/2014] [Indexed: 01/30/2023] Open
Abstract
The immune response after brain injury is highly complex and involves both local and systemic events at the cellular and molecular level. It is associated to a dramatic over-activation of enzyme systems, the expression of proinflammatory genes and the activation/recruitment of immune cells. The complement system represents a powerful component of the innate immunity and is highly involved in the inflammatory response. Complement components are synthesized predominantly by the liver and circulate in the bloodstream primed for activation. Moreover, brain cells can produce complement proteins and receptors. After acute brain injury, the rapid and uncontrolled activation of the complement leads to massive release of inflammatory anaphylatoxins, recruitment of cells to the injury site, phagocytosis and induction of blood brain barrier (BBB) damage. Brain endothelial cells are particularly susceptible to complement-mediated effects, since they are exposed to both circulating and locally synthesized complement proteins. Conversely, during neurodegenerative disorders, complement factors play distinct roles depending on the stage and degree of neuropathology. In addition to the deleterious role of the complement, increasing evidence suggest that it may also play a role in normal nervous system development (wiring the brain) and adulthood (either maintaining brain homeostasis or supporting regeneration after brain injury). This article represents a compendium of the current knowledge on the complement role in the brain, prompting a novel view that complement activation can result in either protective or detrimental effects in brain conditions that depend exquisitely on the nature, the timing and the degree of the stimuli that induce its activation. A deeper understanding of the acute, subacute and chronic consequences of complement activation is needed and may lead to new therapeutic strategies, including the ability of targeting selective step in the complement cascade.
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Affiliation(s)
- Franca Orsini
- Department of Neuroscience, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri Milan, Italy
| | - Daiana De Blasio
- Department of Neuroscience, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri Milan, Italy ; Department of Experimental and Clinical Sciences, University of Chieti Pescara, Italy
| | - Rosalia Zangari
- Department of Neuroscience, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri Milan, Italy ; Department of Anesthesia and Critical Care Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan Milan, Italy
| | - Elisa R Zanier
- Department of Neuroscience, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri Milan, Italy
| | - Maria-Grazia De Simoni
- Department of Neuroscience, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri Milan, Italy
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Studies on the role of goat heart galectin-1 as a tool for detecting post-malignant changes in glycosylation pattern. Saudi J Biol Sci 2014; 22:85-9. [PMID: 25561889 DOI: 10.1016/j.sjbs.2014.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 07/24/2014] [Accepted: 07/28/2014] [Indexed: 11/22/2022] Open
Abstract
Galectins are mammalian lectins established to play a crucial role in the progression of various cancer types by the virtue of their differential expression in normal and cancerous cells. In the present study, goat heart galectin-1 (GHG-1) was purified and investigated for its potential role in the detection of post-malignant changes in glycosylation pattern. When exposed to superoxide radicals generated from a pyrogallol auto-oxidation system, GHG-1 treated erythrocyte suspension released higher amount of oxyhemoglobin than the unagglutinated erythrocytes. The extent of erythrocyte hemolysis was found to be directly proportional to concentrations of hypochlorous acid. GHG-1 was used to detect the change in the β-galactoside expression pattern in erythrocyte membrane from human donors suffering from prostate and breast cancer. No significant change was observed in the hemolysis of lectin agglutinated erythrocytes collected from pre-operated breast cancer patients, whereas significant increase was observed in normal healthy control and post-operated samples. Findings of this study proclaim GHG-1 as an important tool for the detection of post-malignant changes in glycosylation pattern.
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Abstract
Although new activation and regulatory mechanisms are still being identified, the basic architecture of the complement system has been known for decades. Two major roles of complement are to control certain bacterial infections and to promote clearance of apoptotic cells. In addition, although inappropriate complement activation has long been proposed to cause tissue damage in human inflammatory and autoimmune diseases, whether this is indeed true has been uncertain. However, recent studies in humans, especially those using newly available biological therapeutics, have now clearly demonstrated the pathophysiologic importance of the complement system in several rare diseases. Beyond these conditions, recent genetic studies have strongly supported an injurious role for complement in a wide array of human inflammatory, degenerative, and autoimmune diseases. This review includes an overview of complement activation, regulatory, and effector mechanisms. It then focuses on new understandings gained from genetic studies, ex vivo analyses, therapeutic trials, and animal models as well as on new research opportunities.
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Affiliation(s)
- V Michael Holers
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado 80045;
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Osthoff M, Trendelenburg M. Impact of mannose-binding lectin deficiency on radiocontrast-induced renal dysfunction. BIOMED RESEARCH INTERNATIONAL 2013; 2013:962695. [PMID: 24386641 PMCID: PMC3872394 DOI: 10.1155/2013/962695] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 11/26/2013] [Indexed: 12/17/2022]
Abstract
Contrast-induced nephropathy (CIN) is the third leading cause of acute renal failure in hospitalized patients. Endothelial dysfunction, renal medullary ischemia, and tubular toxicity are regarded as the most important factors in the pathogenesis of CIN. Mannose-binding lectin (MBL), a pattern recognition protein of the lectin pathway of complement, has been found to aggravate and mediate tissue damage during experimental renal ischemia/reperfusion (I/R) injury which was alleviated by inhibition with C1 inhibitor, a potent MBL, and lectin pathway inhibitor. In this paper, we highlight the potential role of MBL in the pathogenesis of human CIN. In experimental I/R models, MBL was previously found to induce tubular cell death independent of the complement system. In addition, after binding to vascular endothelial cells, MBL and its associated serine proteases were able to trigger a proinflammatory reaction and contribute to endothelial dysfunction. In humans, urinary MBL was increased after administration of contrast media and in individuals with CIN. Moreover, individuals with normal/high MBL levels were at increased risk to develop radiocontrast-induced renal dysfunction. Hence, MBL and the lectin pathway seem to be a promising target given that a licensed, powerful, human recombinant inhibitor exits to be added to the scarce armamentarium currently available for prophylaxis of CIN.
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Affiliation(s)
- Michael Osthoff
- Department of Infectious Diseases, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
| | - Marten Trendelenburg
- Laboratory of Clinical Immunology, Department of Biomedicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
- Clinic for Internal Medicine, University Hospital Basel, Petersgraben 4, 4031 Basel, Switzerland
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Karasawa R, Ozaki S, Nishioka K, Kato T. Autoantibodies to Peroxiredoxin I and IV in Patients with Systemic Autoimmune Diseases. Microbiol Immunol 2013; 49:57-65. [PMID: 15665454 DOI: 10.1111/j.1348-0421.2005.tb03640.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Anti-oxidative enzymes protect living bodies from various oxidative stresses. In the systemic autoimmune diseases, autoantibodies to oxidized molecules and to anti-oxidative enzymes have been reported. To promote understanding of the relationships between autoimmunity and oxidative stress, we here investigate whether autoimmunity to the anti-oxidative peroxiredoxin (Prxs) enzymes exists in patients with systemic autoimmune diseases. Specifically, we detected autoantibodies to recombinant Prx I and Prx IV respectively by ELISA and western blotting. Next, clinical parameters were compared between the anti-Prx I or IV-positive and-negative patients. We found that 33% of the 92 patients with autoimmune diseases tested possessed autoantibodies to Prx I (57% in systemic lupus erythematosus (SLE), 19% in rheumatoid arthritis (RA), 5% in Behçet disease, and 46% in primary vasculitis syndrome). In contrast, autoantibodies to Prx IV were detected in only 17% of the same patients. No significant correlation was found between occurrence of the two autoantibodies. Clinically, possession of anti-Prx I autoantibodies correlated with lower serum levels of CH50, C3, and C4. Taken together, our data demonstrate the existence of autoantibodies to Prxs for the first time. The autoantibodies to Prx I may be involved in the pathophysiology of systemic autoimmune diseases such as SLE and vasculitis.
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Affiliation(s)
- Rie Karasawa
- Department of Bioregulation & Proteomics, Institute of Medical Science, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
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Han M, Fan L, Qin Z, Lavingia B, Stastny P. Alleles of keratin 1 in families and populations. Hum Immunol 2013; 74:1453-8. [DOI: 10.1016/j.humimm.2013.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 05/02/2013] [Accepted: 05/15/2013] [Indexed: 11/16/2022]
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Abstract
Acute kidney injury is a common and severe clinical problem. Patients who develop acute kidney injury are at increased risk of death despite supportive measures such as hemodialysis. Research in recent years has shown that tissue inflammation is central to the pathogenesis of renal injury, even after nonimmune insults such as ischemia/reperfusion and toxins. Examination of clinical samples and preclinical models has shown that activation of the complement system is a critical cause of acute kidney injury. Furthermore, complement activation within the injured kidney is a proximal trigger of many downstream inflammatory events within the renal parenchyma that exacerbate injury to the kidney. Complement activation also may account for the systemic inflammatory events that contribute to remote organ injury and patient mortality. Complement inhibitory drugs have now entered clinical use and may provide an important new therapeutic approach for patients suffering from, or at high risk of developing, acute kidney injury.
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Affiliation(s)
- James W McCullough
- Department of Medicine, University of Colorado Denver School of Medicine, Aurora, CO
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Transcriptional profile of genes involved in oxidative stress and antioxidant defense in PC12 cells following treatment with cerium oxide nanoparticles. Biochim Biophys Acta Gen Subj 2013; 1840:495-506. [PMID: 24135455 DOI: 10.1016/j.bbagen.2013.10.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 09/23/2013] [Accepted: 10/07/2013] [Indexed: 11/20/2022]
Abstract
BACKGROUND Thanks to their impressive catalytic properties, cerium oxide nanoparticles (nanoceria) are able to mimic the activity of superoxide dismutase and of catalase, therefore acting as reactive oxygen species (ROS) scavengers in many biological contexts, for instance offering neuroprotection and reduction of apoptosis rate in many types of cells exposed to oxidative stress (stem cells, endothelial cells, epithelial cells, osteoblasts, etc.). METHODS We report on the investigation at gene level, through quantitative real time RT-PCR, of the effects of cerium oxide nanoparticles on ROS mechanisms in neuron-like PC12 cells. After three days of treatment, transcription of 84 genes involved in antioxidant defense, in ROS metabolism, and coding oxygen transporters is evaluated, and its relevance to central nervous system degenerative diseases is considered. RESULTS Experimental evidences reveal intriguing differences in transcriptional profiles of cells treated with cerium oxide nanoparticles with respect to the controls: nanoceria acts as strong exogenous ROS scavenger, modulating transcription of genes involved in natural cell defenses, down-regulating genes involved in inflammatory processes, and up-regulating some genes involved in neuroprotection. CONCLUSIONS Our findings are extremely promising for future biomedical applications of cerium oxide nanoparticles, further supporting their possible exploitation in the treatment of neurodegenerative diseases. GENERAL SIGNIFICANCE This work represents the first documented step to the comprehension of mechanisms underlying the anti-oxidant action of cerium oxide nanoparticles. Our findings allow for a better comprehension of the phenomena of ROS scavenging and neuroprotection at a gene level, suggesting future therapeutic approaches even at a pre-clinical level.
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Proteomic analysis of human follicular fluid: a new perspective towards understanding folliculogenesis. J Proteomics 2013; 87:68-77. [PMID: 23707233 DOI: 10.1016/j.jprot.2013.05.017] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 04/23/2013] [Accepted: 05/14/2013] [Indexed: 01/20/2023]
Abstract
UNLABELLED Human follicular fluid is a complex body fluid that constitutes the microenvironment of developing follicles in the ovary. Follicular fluid contains a number of proteins that modulate oocyte maturation and ovulation. Information about the protein constituents of follicular fluid may provide a better understanding of ovarian physiology in addition to opening new avenues for investigating ovarian disorders. However, the composition of follicular fluid proteome remains poorly defined. In this study, we carried out SDS-PAGE, OFFGEL and SCX-based separation followed by LC-MS/MS analysis to characterize the proteome of human follicular fluid. We report high confidence identification of 480 proteins, of which 320 have not been described previously in the follicular fluid. The identified proteins belong to diverse functional categories including growth factor and hormones, receptor signaling, enzyme catalysis, defense/immunity and complement activity. Our dataset should serve as a resource for future studies aimed at developing biomarkers for monitoring oocyte and embryo quality, pregnancy outcomes and ovarian disorders. BIOLOGICAL SIGNIFICANCE Proteome analysis of human follicular fluid by multi-pronged approach of protein peptide fractionation revealed 480 proteins with high confidence. The identified protein may facilitate the understanding of folliculogenesis. This protein dataset should serve as a useful resource for development of biomarkers for oocyte quality, in vitro fertilization techniques and female infertility.
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Acute but transient release of terminal complement complex after reperfusion in clinical kidney transplantation. Transplantation 2013; 95:816-20. [PMID: 23348894 DOI: 10.1097/tp.0b013e31827e31c9] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Ischemia/reperfusion (I/R) injury has a major impact on kidney graft function and survival. Animal studies have suggested a role for complement activation in mediating I/R injury; however, results are not unambiguous. Whether complement activation is involved in clinical I/R injury in humans is still unclear. METHODS In the present study, we assessed the formation and release of C5b-9 during early reperfusion in clinical kidney transplantation in living donor, brain-dead donor, and cardiac dead donor kidney transplantation. By arteriovenous measurements and histologic studies, local terminal complement activation in the reperfused kidney was assessed. RESULTS There was no release of soluble C5b-9 (sC5b-9) from living donor kidneys, nor was there a release of C5a. In contrast, instantly after reperfusion, there was a significant but transient venous release of sC5b-9 from the reperfused kidney graft in brain-dead donor and cardiac dead donor kidney transplantation. This short-term activation of the terminal complement cascade in deceased-donor kidney transplantation was not reflected by renal tissue deposition of C5b-9 in biopsies taken 45 min after reperfusion. CONCLUSIONS This systematic study in human kidney transplantation shows an acute but nonsustained sC5b-9 release on reperfusion in deceased-donor kidney transplantation. This instantaneous, intravascular terminal complement activation may be induced by intravascular cellular debris and hypoxic or injured endothelium.
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Gorsuch WB, Chrysanthou E, Schwaeble WJ, Stahl GL. The complement system in ischemia-reperfusion injuries. Immunobiology 2012; 217:1026-33. [PMID: 22964228 PMCID: PMC3439809 DOI: 10.1016/j.imbio.2012.07.024] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 07/23/2012] [Accepted: 07/24/2012] [Indexed: 01/19/2023]
Abstract
Tissue injury and inflammation following ischemia and reperfusion of various organs have been recognized for many years. Many reviews have been written over the last several decades outlining the role of complement in ischemia/reperfusion injury. This short review provides a current state of the art knowledge on the complement pathways activated, complement components involved and a review of the clinical biologics/inhibitors used in the clinical setting of ischemia/reperfusion. This is not a complete review of the complement system in ischemia and reperfusion injury but will give the reader an updated view point of the field, potential clinical use of complement inhibitors, and the future studies needed to advance the field.
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Affiliation(s)
- William B Gorsuch
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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Brouillard F, Fritsch J, Edelman A, Ollero M. Contribution of proteomics to the study of the role of cytokeratins in disease and physiopathology. Proteomics Clin Appl 2012; 2:264-85. [PMID: 21136830 DOI: 10.1002/prca.200780018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cytokeratins (CKs), the most abundant group of cytoskeletal intermediate filaments, and proteomics are strongly connected. On the one hand, proteomics has been extremely useful to uncover new features and functions of CKs, on the other, the highly abundant CKs serve as an exceptional tool to test new technological developments in proteomics. As a result, proteomics has contributed to finding valuable associations of CKs with diseases as diverse as cancer, cystic fibrosis, steatohepatitis, viral and bacterial infection, keratoconus, vitreoretinopathy, preeclampsia or the chronic fatigue syndrome, as well as to characterizing their participation in a number of physiopathological processes, including drug resistance, response to toxicants, inflammation, stem cell differentiation, embryo development, and tissue repair. In some cases, like in cystic fibrosis, CKs have been described as potential therapeutic targets. The development of a specific field of proteomics where CKs become the main subject of research aims and hypotheses is suggested.
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Affiliation(s)
- Franck Brouillard
- INSERM, Unité 845, Paris, France; Faculté de Médecine René Descartes, Université Paris-Descartes, Plateau Protéomes IFR94, Paris, France
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