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Yuan F, Li S, Huang B, Hu Y, Zeng X, Peng Y, Du C, Rong M. Molecular mechanism by which spider-driving peptide potentiates coagulation factors. Biomed Pharmacother 2023; 166:115421. [PMID: 37660649 DOI: 10.1016/j.biopha.2023.115421] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/05/2023] Open
Abstract
Hemostasis is a crucial process that quickly forms clots at injury sites to prevent bleeding and infections. Dysfunctions in this process can lead to hemorrhagic disorders, such as hemophilia and thrombocytopenia purpura. While hemostatic agents are used in clinical treatments, there is still limited knowledge about potentiators targeting coagulation factors. Recently, LCTx-F2, a procoagulant spider-derived peptide, was discovered. This study employed various methods, including chromogenic substrate analysis and dynamic simulation, to investigate how LCTx-F2 enhances the activity of thrombin and FXIIa. Our findings revealed that LCTx-F2 binds to thrombin and FXIIa in a similar manner, with the N-terminal penetrating the active-site cleft of the enzymes and the intermediate section reinforcing the peptide-enzyme connection. Interestingly, the C-terminal remained at a considerable distance from the enzymes, as evidenced by the retention of affinity for both enzymes using truncated peptide T-F2. Furthermore, results indicated differences in the bonding relationship of critical residues between thrombin and FXIIa, with His13 facilitating binding to thrombin and Arg7 being required for binding to FXIIa. Overall, our study sheds light on the molecular mechanism by which LCTx-F2 potentiates coagulation factors, providing valuable insights that may assist in designing drugs targeting procoagulation factors.
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Affiliation(s)
- Fuchu Yuan
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, China
| | - Shuwan Li
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, China
| | - Biao Huang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, China
| | - Ya Hu
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, China
| | - Xiongzhi Zeng
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, China
| | - Yanmei Peng
- Institute of Innovative Medicine, Hunan Academy of Chinese Medicine, Changsha, Hunan 410006, China
| | - Canwei Du
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China; Institute of Innovative Medicine, Hunan Academy of Chinese Medicine, Changsha, Hunan 410006, China.
| | - Mingqiang Rong
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, China.
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Zhang X, Zhu L, Zhang H, Chen S, Xiao Y. CAR-T Cell Therapy in Hematological Malignancies: Current Opportunities and Challenges. Front Immunol 2022; 13:927153. [PMID: 35757715 PMCID: PMC9226391 DOI: 10.3389/fimmu.2022.927153] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 05/16/2022] [Indexed: 12/13/2022] Open
Abstract
Chimeric antigen receptor T (CAR-T) cell therapy represents a major breakthrough in cancer treatment, and it has achieved unprecedented success in hematological malignancies, especially in relapsed/refractory (R/R) B cell malignancies. At present, CD19 and BCMA are the most common targets in CAR-T cell therapy, and numerous novel therapeutic targets are being explored. However, the adverse events related to CAR-T cell therapy might be serious or even life-threatening, such as cytokine release syndrome (CRS), CAR-T-cell-related encephalopathy syndrome (CRES), infections, cytopenia, and CRS-related coagulopathy. In addition, due to antigen escape, the limited CAR-T cell persistence, and immunosuppressive tumor microenvironment, a considerable proportion of patients relapse after CAR-T cell therapy. Thus, in this review, we focus on the progress and challenges of CAR-T cell therapy in hematological malignancies, such as attractive therapeutic targets, CAR-T related toxicities, and resistance to CAR-T cell therapy, and provide some practical recommendations.
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Affiliation(s)
- Xiaomin Zhang
- Department of Hematology, Jinshazhou Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Institute of Clinical Medicine College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lingling Zhu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Hui Zhang
- School of Medicine, Jishou University, Jishou, China
| | - Shanshan Chen
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yang Xiao
- Institute of Clinical Medicine College, Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Hematology, Shenzhen Qianhai Shekou Pilot Free Trade Zone Hospital, Shenzhen, China
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3
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Swan D, Thachil J. Management of haemostatic complications of chimaeric antigen receptor T-cell therapy. Br J Haematol 2022; 197:250-259. [PMID: 35146749 DOI: 10.1111/bjh.18045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Dawn Swan
- Department of Haematology, St James' Hospital, Dublin, Republic of Ireland
| | - Jecko Thachil
- Department of Haematology, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
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Sparkenbaugh EM, Kasztan M, Henderson MW, Ellsworth P, Davis PR, Wilson KJ, Reeves B, Key NS, Strickland S, McCrae K, Pollock DM, Pawlinski R. High molecular weight kininogen contributes to early mortality and kidney dysfunction in a mouse model of sickle cell disease. J Thromb Haemost 2020; 18:2329-2340. [PMID: 32573897 PMCID: PMC8043232 DOI: 10.1111/jth.14972] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND Sickle cell disease (SCD) is characterized by chronic hemolytic anemia, vaso-occlusive crises, chronic inflammation, and activation of coagulation. The clinical complications such as painful crisis, stroke, pulmonary hypertension, nephropathy and venous thromboembolism lead to cumulative organ damage and premature death. High molecular weight kininogen (HK) is a central cofactor for the kallikrein-kinin and intrinsic coagulation pathways, which contributes to both coagulation and inflammation. OBJECTIVE We hypothesize that HK contributes to the hypercoagulable and pro-inflammatory state that causes end-organ damage and early mortality in sickle mice. METHODS We evaluated the role of HK in the Townes mouse model of SCD. RESULTS/CONCLUSIONS We found elevated plasma levels of cleaved HK in sickle patients compared to healthy controls, suggesting ongoing HK activation in SCD. We used bone marrow transplantation to generate wild type and sickle cell mice on a HK-deficient background. We found that short-term HK deficiency attenuated thrombin generation and inflammation in sickle mice at steady state, which was independent of bradykinin signaling. Moreover, long-term HK deficiency attenuates kidney injury, reduces chronic inflammation, and ultimately improves survival of sickle mice.
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Affiliation(s)
- Erica M. Sparkenbaugh
- UNC Blood Research Center, Division of Hematology & Oncology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Malgorzata Kasztan
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael W. Henderson
- UNC Blood Research Center, Division of Hematology & Oncology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Patrick Ellsworth
- UNC Blood Research Center, Division of Hematology & Oncology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Parker Ross Davis
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kathryn J. Wilson
- UNC Blood Research Center, Division of Hematology & Oncology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Brandi Reeves
- UNC Blood Research Center, Division of Hematology & Oncology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nigel S. Key
- UNC Blood Research Center, Division of Hematology & Oncology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Sidney Strickland
- Patricia and John Rosenwald Laboratory of Neurobiology and Genetics, The Rockefeller University, New York, NY, USA
| | - Keith McCrae
- Department of Hematology Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - David M. Pollock
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rafal Pawlinski
- UNC Blood Research Center, Division of Hematology & Oncology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Tsuji S, Mukai T, Hirano H, Morita Y. In vivo analysis of thrombus formation in arthritic mice. Mod Rheumatol 2020; 31:498-503. [PMID: 32149538 DOI: 10.1080/14397595.2020.1740401] [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] [Indexed: 10/24/2022]
Abstract
OBJECTIVES Rheumatoid arthritis (RA) is characterized by inflammation in multiple joints. In addition to causing joint destruction, the persistent systemic inflammation with RA increases the risk of cardiovascular disease. Although there are in vitro studies showing the prothrombotic effect of inflammatory cytokines, especially TNF, in vivo experimental evidence is lacking due to the complexity of in vivo modeling and observation. In this study, we aimed to model in vivo thrombus formation in arthritic mice and to determine whether the arthritic condition would further promote thrombotic formation. METHODS Human TNF-transgenic mice were used as the arthritis model. Thrombus formation was observed on the testicular arterioles. Thrombus formation was induced by reactive oxygen species generated from hematoporphyrin under laser irradiation. RESULTS Platelet thrombus formation was observed in real-time using a laser confocal microscopy in both wild-type and arthritic mice. Quantitative analyses revealed that no significant differences were observed in thrombus formation, represented by platelet attachment time and vascular obstruction time, in our experimental setting. CONCLUSION Although we confirmed the usefulness of this novel technique for in vivo studies, further investigation is required to conclude the possible mechanism of prothrombotic phenotypes under inflammatory conditions.
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Affiliation(s)
- Shoko Tsuji
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Tomoyuki Mukai
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Hiroyasu Hirano
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Yoshitaka Morita
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Okayama, Japan
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Abstract
Sickle cell disease (SCD) is a hematologic disorder caused by a well-characterized point mutation in the β-globin gene. Abnormal polymerization of hemoglobin tetramers results in the formation of sickle red blood cells that leads to vascular occlusions, hemolytic anemia, vascular inflammation and cumulative, multiple organ damage. Ongoing activation of coagulation is another hallmark of SCD. Recent studies strongly suggested that hypercoagulation in SCD is not just a secondary event but contributes directly to the disease pathophysiology. In this article we summarize mechanisms leading to the activation of coagulation, review data indicating direct contribution of coagulation to the pathology of SCD and, we discuss the anticoagulation as a possible treatment strategy to attenuate the disease progression.
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Affiliation(s)
- E Sparkenbaugh
- University of North Carolina, School of Medicine, Division of Hematology and Oncology, Chapel Hill, NC, USA
| | - R Pawlinski
- University of North Carolina, School of Medicine, Division of Hematology and Oncology, Chapel Hill, NC, USA
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Abstract
Monocytic microparticles (mMP) are microparticles derived from human monocytes either under in vivo or in vitro conditions. The size of mMP is between 0.1 and 1.0 μm. Apart from the size range, mMPs are also identified based on phosphatidylserine and CD14 expression on their surface, though this is not always the case. Monocytic MP are critical players in inflammation, endothelial cell function, and blood coagulation. They exhibit dual function by either helping the progression of such conditions or limiting it, depending on certain factors. Furthermore, the numbers of mMP are elevated in some autoimmune diseases, infectious diseases, and metabolic disorders. However, it is unknown whether mMP play an active role in these diseases or are simply biomarkers. The mechanism of mMP modulation is yet to be identified. In this review, we highlight the mechanism of mMP formation and the roles that they play in inflammation, blood coagulation, and different disease settings.
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Affiliation(s)
- Ahmad Tarmizi Abdul Halim
- School of Health Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
| | | | - Maryam Azlan
- School of Health Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia.
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8
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Wang Y, Braun OO, Zhang S, Luo L, Norström E, Thorlacius H. Dynamic changes in thrombin generation in abdominal sepsis in mice. Shock 2015; 42:343-9. [PMID: 24978891 DOI: 10.1097/shk.0000000000000215] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Systemic inflammatory response syndrome and severe infections are associated with major derangements in the coagulation system. The purpose of this study was to examine the dynamic alterations in thrombin generation in abdominal sepsis. Abdominal sepsis was induced by cecal ligation and puncture (CLP) in C57/Bl6 mice. Cecal ligation and puncture caused a systemic inflammatory response, with neutrophil recruitment and tissue damage in the lung as well as thrombocytopenia and leukocytopenia. Thrombin generation, coagulation factors, lung histology, and myeloperoxidase activity was determined 1, 3, 6, and 24 h after induction of CLP. It was found that thrombin generation was increased 1 h after CLP and that thrombin generation started to decrease at 3 h and was markedly reduced 6 and 24 h after CLP induction. Platelet-poor plasma from healthy mice could completely reverse the inhibitory effect of CLP on thrombin generation, suggesting that sepsis caused a decrease in the levels of plasma factors regulating thrombin generation in septic animals. Indeed, it was found that CLP markedly decreased plasma levels of prothrombin, factor V, and factor X at 6 and 24 h. Moreover, we observed that CLP increased plasma levels of activated protein C at 6 h, which returned to baseline levels 24 h after CLP induction. Finally, pretreatment with imipenem/cilastatin attenuated the CLP-evoked decrease in thrombin generation and consumption of prothrombin 24 h after CLP induction. Our novel findings suggest that thrombin generation is initially increased and later decreased in abdominal sepsis. Sepsis-induced reduction in thrombin generation is correlated to changes in the plasma levels of coagulation factors and activated protein C. These findings help explain the dynamic changes in global hemostasis in abdominal sepsis.
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Affiliation(s)
- Yongzhi Wang
- *Department of Clinical Sciences, Malmö, Section of Surgery, †Department of Clinical Sciences, Lund, Section for Cardiology, and ‡Department of Laboratory Medicine, Malmö, Section of Clinical Chemistry, Lund University, Sweden
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9
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Milano M, Dongiovanni P, Artoni A, Gatti S, Rosso L, Colombo F, Bollati V, Maggioni M, Mannucci PM, Bertazzi PA, Fargion S, Valenti L. Particulate matter phagocytosis induces tissue factor in differentiating macrophages. J Appl Toxicol 2015; 36:151-60. [PMID: 25858758 DOI: 10.1002/jat.3156] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 02/25/2015] [Accepted: 02/25/2015] [Indexed: 11/08/2022]
Abstract
Airborne exposure to particulate matter with diameter < 10 mcM (PM10) has been linked to an increased risk of thromboembolic events, but the mechanisms are not completely understood. The aim of this study was to evaluate the effect of PM10 phagocytosis on the release of procoagulant molecules in human differentiating macrophages, and that of PM10 inhalation in an experimental model in rats. Human monocytes were separated from the peripheral blood by the lymphoprep method, differentiated in vitro and treated with standard PM10 or vehicle. Sprague-Dawley rats were instilled intratracheally with PM10 or vehicle alone. The outcome was expression of proinflammatory genes and of tissue factor (TF). In human differentiating macrophages, PM10 exposure upregulated inflammatory genes, but most consistently induced TF mRNA and protein levels, but not TF protein inhibitor, resulting in increased TF membrane expression and a procoagulant phenotype. Differentiation towards the anti-inflammatory M2 phenotype inhibited PM10 -mediated TF expression. TF induction required phagocytosis of PM10 , whereas phagocytosis of inert particles was less effective. PM10 phagocytosis was associated with a gene expression profile consistent with intracellular retention of iron, inducing oxidative stress. Both PM10 and iron activated the stress kinases ERK1/2 pathway, involved in the induction of TF expression. In rats, alveolar exposure to PM10 was associated with pulmonary recruitment of inflammatory cells and resulted in local, but not systemic, induction of TF expression, which was sufficient to increase circulating TF levels. In conclusion, TF induction by differentiating lung macrophages, activated following phagocytosis, contributes to the increased risk of thromboembolic complications associated with PM10 exposure.
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Affiliation(s)
- M Milano
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - P Dongiovanni
- Internal Medicine and Metabolic Diseases Fondazione IRCCS Ca' Granda Ospedale Policlinico Milano, Milan, Italy
| | - A Artoni
- Department of Internal Medicine and Medical Specialties, A. Bianchi BonomiHemophilia and Thrombosis Center, Fondazione IRCCS Ca' Granda Ospedale Policlinico Milano, Milan, Italy
| | - S Gatti
- Liver Transplantation Unit and PreclinicalResearch Center, Fondazione IRCCS Ca' Granda Ospedale Policlinico Milano, Milan, Italy
| | - L Rosso
- Thoracic Surgery, Fondazione IRCCS Ca' Granda Ospedale Policlinico Milano, Milan, Italy
| | - F Colombo
- Flow Cytometry Service, Laboratory of Clinical Chemistry and Microbiology, Fondazione IRCCS Ca' Granda Ospedale Policlinico Milano, Università degli Studi di Milano, Milan, Italy
| | - V Bollati
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - M Maggioni
- Pathology, Fondazione IRCCS Cà Granda Ospedale Policlinico Milano, Milano, Italy
| | - P M Mannucci
- Scientific Direction, Fondazione IRCCS Ca' Granda Ospedale Policlinico Milano, Milan, Italy
| | - P A Bertazzi
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - S Fargion
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy.,Internal Medicine and Metabolic Diseases Fondazione IRCCS Ca' Granda Ospedale Policlinico Milano, Milan, Italy
| | - L Valenti
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy.,Internal Medicine and Metabolic Diseases Fondazione IRCCS Ca' Granda Ospedale Policlinico Milano, Milan, Italy
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Viennois E, Baker MT, Xiao B, Wang L, Laroui H, Merlin D. Longitudinal study of circulating protein biomarkers in inflammatory bowel disease. J Proteomics 2014; 112:166-79. [PMID: 25230104 DOI: 10.1016/j.jprot.2014.09.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Revised: 08/15/2014] [Accepted: 09/05/2014] [Indexed: 12/16/2022]
Abstract
UNLABELLED Inflammatory bowel diseases (IBDs) are chronic and progressive inflammatory disorders of the gastrointestinal tract. In IBD, protein serological biomarkers could be relevant tools for assessing disease activity, performing early-stage diagnosis and managing the treatment. Using the interleukin-10 knockout (IL-10(-/-)) mouse, a model that develops a time-dependent IBD-like disorder that predominates in the colon; we performed longitudinal studies of circulating protein biomarkers in IBD. Circulating protein profiles in serum samples collected from 30-, 93-, to 135-day-old IL-10(-/-) mice were investigated using two-dimensional differential gel electrophoresis and MALDI-TOF/TOF tandem mass spectrometry. A total of 15 different proteins were identified and confirmed by ELISA and Western blot to be differentially accumulated in serum samples from mid- to late-stage IL-10(-/-) mice compared to early non-inflamed IL-10(-/-) mice. The use of another model of colitis and an extra-intestinal inflammation model validated this biomarker panel and demonstrated that comprised some global inflammatory markers, some intestinal inflammation-specific markers and some chronic intestinal inflammation markers. Statistical analyses using misclassification error rate charts validated the use of these identified proteins as powerful biomarkers of colitis. Unlike standard biomarker screening studies, our analyses identified a panel of proteins that allowed the definition of protein signatures that reflect colitis status. BIOLOGICAL SIGNIFICANCE Crohn's disease (CD) and ulcerative colitis (UC) are the most common inflammatory bowel diseases (IBDs) occurring in humans. The major current diagnosis tool is colonoscopy, which is invasive and could lead to false diagnosis. The emergence of serological biomarkers enables the use of new diagnosis tools such as protein signatures for IBD diagnosis/management. Using 2D-DIGE coupled to mass spectrometry, our longitudinal study in a mouse model of colitis identified a signature of protein biomarkers for specific stages of disease.
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Affiliation(s)
- Emilie Viennois
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; Chemistry Department, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, USA; Veterans Affairs Medical Center, Decatur, GA, USA.
| | - Mark T Baker
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; Chemistry Department, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, USA
| | - Bo Xiao
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; Chemistry Department, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, USA
| | - Lixin Wang
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; Chemistry Department, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, USA; Veterans Affairs Medical Center, Decatur, GA, USA
| | - Hamed Laroui
- Chemistry Department, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, USA
| | - Didier Merlin
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA; Chemistry Department, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, USA; Veterans Affairs Medical Center, Decatur, GA, USA
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11
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Marcu-Malina V, Balbir-Gurman A, Dardik R, Braun-Moscovici Y, Segel MJ, Bank I. A Novel Prothrombotic Pathway in Systemic Sclerosis Patients: Possible Role of Bisphosphonate-Activated γδ T Cells. Front Immunol 2014; 5:414. [PMID: 25250025 PMCID: PMC4157565 DOI: 10.3389/fimmu.2014.00414] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 08/15/2014] [Indexed: 11/17/2022] Open
Abstract
Objectives: Infusions of aminobisphonates (ABP) activate Vγ9δ2T cells in vivo and induce an acute inflammatory response in 30% of patients treated for osteoporosis. Following the observation of digital thrombosis in a systemic sclerosis (SSc) patient after treatment with an intravenous ABP, zoledronate (Zol), we evaluated whether patient and control peripheral blood (PB) mononuclear cell (MC, PBMC) acquire a prothrombotic phenotype in response to Zol. Results: Vγ9δ2T cells of both patients and healthy donors (HD) upregulated the CD69 activation antigen and secreted tumor necrosis factor (TNF)α in response to Zol in vitro. In addition, exposure to either Zol or lipopolysaccharide (LPS), or to both additively, induced expression of the highly procoagulant, tissue factor (TF)-1 on CD14+ monocytes. Importantly, only Zol-induced TF-1 was blocked by a monoclonal antibody to TNFα. Interestingly, we found that SSc, but not HD, Vδ1+ T cells were concurrently activated by Zol to produce interleukin (IL)-4. Addition of plasma from the blood of the SSc patient who developed critical digital ischemia after infusion of Zol, but neither plasma from a second patient with no adverse clinical response to Zol infusion nor of a HD, strongly enhanced Zol-induced monocyte TF-1, which could still be blocked by anti-TNFα. Conclusion: Aminobisphonates induced secretion of TNFα by Vγ9δ2+ T cells may lead to TNFα-dependent induction of procoagulant TF-1 induction on monocytes. In certain clinical settings, e.g., SSc, TF-1+ monocytes could play a role in triggering clinically relevant thrombosis.
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Affiliation(s)
| | - Alexandra Balbir-Gurman
- B Shine Rheumatology Unit, Rambam Health Care Campus, Rambam Medical Center , Haifa , Israel
| | - Rima Dardik
- Institutes of Thrombosis and Hemostasis, Sheba Medical Center , Ramat Gan , Israel
| | - Yolanda Braun-Moscovici
- B Shine Rheumatology Unit, Rambam Health Care Campus, Rambam Medical Center , Haifa , Israel
| | - Michael J Segel
- Institute of Pulmonary Diseases, Sheba Medical Center , Ramat Gan , Israel
| | - Ilan Bank
- Laboratory of Immunoregulation, Sheba Medical Center , Ramat Gan , Israel ; Department of Medicine F, Sheba Medical Center , Ramat Gan , Israel ; Department of Medicine, Sackler School of Medicine, Tel Aviv University , Tel Aviv , Israel
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12
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Furniss SK, Yao R, Gonzalez G. Automatic gene prioritization in support of the inflammatory contribution to Alzheimer's disease. AMIA JOINT SUMMITS ON TRANSLATIONAL SCIENCE PROCEEDINGS. AMIA JOINT SUMMITS ON TRANSLATIONAL SCIENCE 2014; 2014:42-7. [PMID: 25717399 PMCID: PMC4333706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
This research seeks to extend the process of novel therapeutic gene target discovery for the treatment of Alzheimer's disease (AD). Gene-gene and gene-pathway annotation tools as well as human analysis are used to explore likely connections between potential gene targets and biochemical mechanisms of AD and associated genes. Rule-based annotation systems, such as GeneRanker, can be applied to the continuously growing volume of literature to extract relevant gene lists. The subsequent challenge is to abstract biological significance from associated genes to aid in discovery of novel therapeutic gene targets. Automatic annotation of genes deemed significant by data-driven assays and knowledge-driven analysis is limited. Therefore, human analysis is still crucial to exploring novel gene targets and new disease models. This research illustrates a method of analysis of an extracted gene list which lead to the discovery of KNG1 as a possible therapeutic target, suggests a connection between inflammation and AD pathogenesis.
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13
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Ye Y, Xing H, Chen X. Anti-inflammatory and analgesic activities of the hydrolyzed sasanquasaponins from the defatted seeds of Camellia oleifera. Arch Pharm Res 2013; 36:941-51. [DOI: 10.1007/s12272-013-0138-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 04/22/2013] [Indexed: 11/28/2022]
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14
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Khan MM, Douglas SD, Benton TD. Substance P-neurokinin-1 receptor interaction upregulates monocyte tissue factor. J Neuroimmunol 2011; 242:1-8. [PMID: 22115773 DOI: 10.1016/j.jneuroim.2011.10.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Revised: 10/24/2011] [Accepted: 10/28/2011] [Indexed: 11/24/2022]
Abstract
Monocytes play an important role in hemostasis. In this study, the prothrombotic effects of the neuropeptide substance P (SP) on human monocytes through neurokinin-1 receptor (NK1-R) were characterized. SP upregulated monocyte tissue factor (TF), the major coagulation cascade stimulator, in a concentration and time dependent manner. Specific inhibition of NK1-R completely blocked TF expression. Monocytes stimulated by SP released cytokines and chemokines. When monocytes were stimulated with cytokines or chemokines, TF was expressed by the cytokines (GM-CSF, IFN-γ and TNF-α). Cytokines may play a major role in the mechanism of SP induced monocyte TF expression. NK1-R antagonists (NK1-RA) may have a role in developing novel therapeutic approaches to patients vulnerable to vaso-occlusive disorders.
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Affiliation(s)
- Mohammad M Khan
- Department of Psychiatry and Behavioral Sciences, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
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Breen KA, Grimwade D, Hunt BJ. The pathogenesis and management of the coagulopathy of acute promyelocytic leukaemia. Br J Haematol 2011; 156:24-36. [DOI: 10.1111/j.1365-2141.2011.08922.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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