1
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Zhang M, Guo B. Use of bioinformatic analyses in identifying characteristic genes and mechanisms active in the progression of idiopathic thrombocytopenic purpura in individuals with different phenotypes. J Int Med Res 2020; 48:300060520971437. [PMID: 33222560 PMCID: PMC7689594 DOI: 10.1177/0300060520971437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 10/13/2020] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To explore the mechanism underlying the progression of newly diagnosed idiopathic thrombocytopenic purpura (ITP) to its chronic or remission state using bioinformatic methods. METHODS GSE56232 and GSE46922 gene expression profile datasets were downloaded from Gene Expression Omnibus (GEO). Differentially expressed genes were identified and characteristic genes were screened by weighted gene co-expression network analysis. These genes were used for function enrichment analysis and construction of a protein-protein interaction network. Finally, characteristic genes were verified to determine potential molecular mechanisms underlying ITP progression. RESULTS We found that characteristic genes in the chronic ITP group were mainly involved in intracellular processes and ion binding, while characteristic genes in the remission ITP group were involved in intracellular processes and nuclear physiological activities. We identified a sub-network of characteristic genes, LMNA, JUN, PRKACG, SMC3, which may indicate the mechanism by which newly diagnosed ITP progresses to chronic. Although no meaningful signaling pathways were found, the expression of NR3C1, TPR, SMC4, PANBP2, CHD1, and U2SURP may affect ITP progression from newly diagnosed to remission. CONCLUSION Our findings improve the understanding of the pathogenesis and progression of ITP, and may provide new directions for the development of treatment strategies.
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Affiliation(s)
- Mengyi Zhang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Binhan Guo
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
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2
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Crow AR, Kapur R, Koernig S, Campbell IK, Jen CC, Mott PJ, Marjoram D, Khan R, Kim M, Brasseit J, Cruz-Leal Y, Amash A, Kahlon S, Yougbare I, Ni H, Zuercher AW, Käsermann F, Semple JW, Lazarus AH. Treating murine inflammatory diseases with an anti-erythrocyte antibody. Sci Transl Med 2020; 11:11/506/eaau8217. [PMID: 31434758 DOI: 10.1126/scitranslmed.aau8217] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 02/08/2019] [Accepted: 07/11/2019] [Indexed: 12/13/2022]
Abstract
Treatment of autoimmune and inflammatory diseases typically involves immune suppression. In an opposite strategy, we show that administration of the highly inflammatory erythrocyte-specific antibody Ter119 into mice remodels the monocyte cellular landscape, leading to resolution of inflammatory disease. Ter119 with intact Fc function was unexpectedly therapeutic in the K/BxN serum transfer model of arthritis. Similarly, it rapidly reversed clinical disease progression in collagen antibody-induced arthritis (CAIA) and collagen-induced arthritis and completely corrected CAIA-induced increase in monocyte Fcγ receptor II/III expression. Ter119 dose-dependently induced plasma chemokines CCL2, CCL5, CXCL9, CXCL10, and CCL11 with corresponding alterations in monocyte percentages in the blood and liver within 24 hours. Ter119 attenuated chemokine production from the synovial fluid and prevented the accumulation of inflammatory cells and complement components in the synovium. Ter119 could also accelerate the resolution of hypothermia and pulmonary edema in an acute lung injury model. We conclude that this inflammatory anti-erythrocyte antibody simultaneously triggers a highly efficient anti-inflammatory effect with broad therapeutic potential.
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Affiliation(s)
- Andrew R Crow
- Canadian Blood Services Centre for Innovation, Ottawa, Ontario K1G 4J5, Canada.,Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Rick Kapur
- Canadian Blood Services Centre for Innovation, Ottawa, Ontario K1G 4J5, Canada.,Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada.,Department of Hematology and Transfusion Medicine, Lund University, Lund 221 84, Sweden.,Department of Experimental Immunohematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, Netherlands
| | - Sandra Koernig
- CSL Limited, Bio21 Institute, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Ian K Campbell
- CSL Limited, Bio21 Institute, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Chao-Ching Jen
- Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Patrick J Mott
- Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Danielle Marjoram
- Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Ramsha Khan
- Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Michael Kim
- Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Jennifer Brasseit
- CSL Behring, Research, CSL Biologics Research Center, Bern, Switzerland
| | - Yoelys Cruz-Leal
- Canadian Blood Services Centre for Innovation, Ottawa, Ontario K1G 4J5, Canada.,Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Alaa Amash
- Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Simrat Kahlon
- Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Issaka Yougbare
- Canadian Blood Services Centre for Innovation, Ottawa, Ontario K1G 4J5, Canada.,Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada
| | - Heyu Ni
- Canadian Blood Services Centre for Innovation, Ottawa, Ontario K1G 4J5, Canada.,Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada.,Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Department of Physiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Adrian W Zuercher
- CSL Behring, Research, CSL Biologics Research Center, Bern, Switzerland
| | - Fabian Käsermann
- CSL Behring, Research, CSL Biologics Research Center, Bern, Switzerland
| | - John W Semple
- Canadian Blood Services Centre for Innovation, Ottawa, Ontario K1G 4J5, Canada.,Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada.,Department of Hematology and Transfusion Medicine, Lund University, Lund 221 84, Sweden.,Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Department of Pharmacology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Alan H Lazarus
- Canadian Blood Services Centre for Innovation, Ottawa, Ontario K1G 4J5, Canada. .,Department of Laboratory Medicine and Keenan Research Centre for Biomedical Science of St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Toronto Platelet Immunobiology Group, Toronto, Ontario, M5B 1T8 Canada.,Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario M5B 1W8, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
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3
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Nikitin MP, Zelepukin IV, Shipunova VO, Sokolov IL, Deyev SM, Nikitin PI. Enhancement of the blood-circulation time and performance of nanomedicines via the forced clearance of erythrocytes. Nat Biomed Eng 2020; 4:717-731. [PMID: 32632229 DOI: 10.1038/s41551-020-0581-2] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/05/2020] [Indexed: 12/14/2022]
Abstract
The rapid elimination of nanoparticles from the bloodstream by the mononuclear phagocyte system limits the activity of many nanoparticle formulations. Here, we show that inducing a slight and transient depletion of erythrocytes in mice (~5% decrease in haematocrit) by administrating a low dose (1.25 mg kg-1) of allogeneic anti-erythrocyte antibodies increases the circulation half-life of a range of short-circulating and long-circulating nanoparticle formulations by up to 32-fold. Treatment of the animals with anti-erythrocyte antibodies significantly improved the targeting of CD4+ cells in vivo with fluorescent anti-CD4-antibody-conjugated nanoparticles, the magnetically guided delivery of ferrofluid nanoparticles to subcutaneous tumour allografts and xenografts, and the treatment of subcutaneous tumour allografts with magnetically guided liposomes loaded with doxorubicin and magnetite or with clinically approved 'stealthy' doxorubicin liposomes. The transient and partial blocking of the mononuclear phagocyte system may enhance the performance of a wide variety of nanoparticle drugs.
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Affiliation(s)
| | - Ivan V Zelepukin
- Moscow Institute of Physics and Technology, Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Victoria O Shipunova
- Moscow Institute of Physics and Technology, Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Ilya L Sokolov
- Moscow Institute of Physics and Technology, Moscow, Russia
| | - Sergey M Deyev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Petr I Nikitin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
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Zufferey A, Kapur R, Semple JW. Pathogenesis and Therapeutic Mechanisms in Immune Thrombocytopenia (ITP). J Clin Med 2017; 6:jcm6020016. [PMID: 28208757 PMCID: PMC5332920 DOI: 10.3390/jcm6020016] [Citation(s) in RCA: 295] [Impact Index Per Article: 42.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 02/04/2017] [Indexed: 01/19/2023] Open
Abstract
Immune thrombocytopenia (ITP) is a complex autoimmune disease characterized by low platelet counts. The pathogenesis of ITP remains unclear although both antibody-mediated and/or T cell-mediated platelet destruction are key processes. In addition, impairment of T cells, cytokine imbalances, and the contribution of the bone marrow niche have now been recognized to be important. Treatment strategies are aimed at the restoration of platelet counts compatible with adequate hemostasis rather than achieving physiological platelet counts. The first line treatments focus on the inhibition of autoantibody production and platelet degradation, whereas second-line treatments include immunosuppressive drugs, such as Rituximab, and splenectomy. Finally, third-line treatments aim to stimulate platelet production by megakaryocytes. This review discusses the pathophysiology of ITP and how the different treatment modalities affect the pathogenic mechanisms.
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Affiliation(s)
- Anne Zufferey
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- The Toronto Platelet Immunobiology Group, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
| | - Rick Kapur
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- The Toronto Platelet Immunobiology Group, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- Canadian Blood Services, Toronto, ON M5B 1W8, Canada.
| | - John W Semple
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- The Toronto Platelet Immunobiology Group, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- Canadian Blood Services, Toronto, ON M5B 1W8, Canada.
- Department of Pharmacology, Medicine, and Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5B 1W8, Canada.
- Division of Hematology and Transfusion Medicine, Lund University, 221 84 Lund, Sweden.
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Yu X, Menard M, Seabright G, Crispin M, Lazarus AH. A monoclonal antibody with anti-D-like activity in murine immune thrombocytopenia requires Fc domain function for immune thrombocytopenia ameliorative effects. Transfusion 2015; 55:1501-11. [PMID: 25752470 DOI: 10.1111/trf.13032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 12/29/2014] [Accepted: 12/31/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND The mechanism of action of anti-D in ameliorating immune thrombocytopenia (ITP) remains unclear. The monoclonal antibody (MoAb) Ter119, which targets murine red blood cells (RBCs), has been shown to mimic the effect of anti-D in improving antibody-mediated murine ITP. The mechanism of Ter119-mediated ITP amelioration, especially the role of the antigen-binding and Fc domains, remains untested. A functional Fc domain is crucial for many therapeutic MoAb activity; therefore, the requirement of Ter119 Fc domain in ITP amelioration is investigated using outbred CD-1 mice. STUDY DESIGN AND METHODS Ter119 variants, including Ter119 F(ab')2 fragments, deglycosylated Ter119, and afucosylated Ter119, were generated to test their effect in ameliorating antibody-induced murine ITP. In vivo inhibition of FcγRIII and FcγRIIB was achieved using the Fab fragment of the FcγRIII/FcγRIIB-specific MoAb 2.4G2. RESULTS Ter119 F(ab')2 fragments and deglycosylated Ter119 were unable to ameliorate murine ITP or mediate phagocytosis of RBCs by RAW264.7 macrophages in vitro. Inhibition of FcγRIII and FcγRIIB, as well as Ter119 defucosylation, do not affect Ter119-mediated ITP amelioration. CONCLUSION The Fc domain of Ter119, as well as its Fc glycosylation, is required for Ter119-mediated ITP amelioration. Moreover, both Fc and Fc glycosylation are required for Ter119-mediated phagocytosis in vitro. These findings demonstrate the importance of the Fc domain in a therapeutic MoAb with anti-D-like activity.
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Affiliation(s)
- Xiaojie Yu
- Canadian Blood Services, Ottawa, Ontario, Canada.,Department of Laboratory Medicine, the Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
| | - Melissa Menard
- Department of Laboratory Medicine, the Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada.,Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Gemma Seabright
- Department of Biology & Biochemistry, University of Bath, Bath, United Kingdom.,Department of Biochemistry, Oxford Glycobiology Institute, University of Oxford, Oxford, United Kingdom
| | - Max Crispin
- Department of Biochemistry, Oxford Glycobiology Institute, University of Oxford, Oxford, United Kingdom
| | - Alan H Lazarus
- Canadian Blood Services, Ottawa, Ontario, Canada.,Department of Laboratory Medicine, the Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada.,Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
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