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Isenberg JS, Montero E. Tolerating CD47. Clin Transl Med 2024; 14:e1584. [PMID: 38362603 PMCID: PMC10870051 DOI: 10.1002/ctm2.1584] [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: 11/19/2023] [Revised: 01/22/2024] [Accepted: 01/30/2024] [Indexed: 02/17/2024] Open
Abstract
Cluster of differentiation 47 (CD47) occupies the outer membrane of human cells, where it binds to soluble and cell surface receptors on the same and other cells, sculpting their topography and resulting in a pleiotropic receptor-multiligand interaction network. It is a focus of drug development to temper and accentuate CD47-driven immune cell liaisons, although consideration of on-target CD47 effects remain neglected. And yet, a late clinical trial of a CD47-blocking antibody was discontinued, existent trials were restrained, and development of CD47-targeting agents halted by some pharmaceutical companies. At this point, if CD47 can be exploited for clinical advantage remains to be determined. Herein an airing is made of the seemingly conflicting actions of CD47 that reflect its position as a junction connecting receptors and signalling pathways that impact numerous human cell types. Prospects of CD47 boosting and blocking are considered along with potential therapeutic implications for autoimmune diseases and cancer.
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Affiliation(s)
- Jeffrey S. Isenberg
- Department of Diabetes Complications & MetabolismArthur Riggs Diabetes & Metabolism Research InstituteCity of Hope National Medical CenterDuarteCaliforniaUSA
| | - Enrique Montero
- Department of Molecular & Cellular EndocrinologyArthur Riggs Diabetes & Metabolism Research InstituteCity of Hope National Medical CenterDuarteCaliforniaUSA
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2
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Penglong T, Saensuwanna A, Pholngam N, Tansila N, Buncherd H, Srinoun K. BACH1 regulates erythrophagocytosis and iron-recycling in β-thalassemia. Genes Cells 2023; 28:211-225. [PMID: 36565308 DOI: 10.1111/gtc.13004] [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: 08/31/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 12/25/2022]
Abstract
Macrophages play essential roles in erythrophagocytosis and iron recycling. β-thalassemia is characterized by a genetic defect in hemoglobin synthesis, which increases the rate of iron recycling. We previously showed that reduced expression of the BTB and CNC homolog 1 (BACH1) gene leads to increased phagocytosis of abnormal RBCs by activated monocytes. However, the mechanisms underlying this abnormal RBC clearance remained unclear. Herein, the spleen and bone marrow cells of β-thalassemic mice were examined for erythrophagocytosis CD markers and iron-recycling genes. Higher expression levels of CD47 and CD163 on RBCs and macrophages, respectively, were observed in β-thalassemic mice than in wild-type cells. The decreased expression of BACH1 caused an increase in Nrf2, Spic, Slc40a1, and HMOX1 expression in splenic red pulp macrophages of thalassemic mice. To investigate BACH1 regulation, a macrophage cell line was transfected with BACH1-siRNA. Decreased BACH1 expression caused an increase in CD163 expression; however, the expression levels were lower when the cells were cultured in media supplemented with β-thalassemia/HbE patient plasma. Additionally, the iron recycling-related genes SPIC, SLC40A1, and HMOX1 were significantly upregulated in BACH1-suppressed macrophages. Our findings provide insights into BACH1 regulation, which plays an important role in erythrophagocytosis and iron recycling in thalassemic macrophages.
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Affiliation(s)
- Tipparat Penglong
- Department of Pathology, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Apisara Saensuwanna
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Nuttanan Pholngam
- Molecular Medicine Graduate Program, Faculty of Science, Mahidol University, Bangkok, Thailand.,Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Natta Tansila
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Hansuk Buncherd
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Kanitta Srinoun
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
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3
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Sun J, Cao H, Wen T, Xu Z, Zhang X, Wang J, Zhu H. The bioinformatics analysis of CD59 in Helicobacter pylori infected gastric cancer. Cancer Biomark 2023; 38:27-35. [PMID: 37522198 DOI: 10.3233/cbm-230034] [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] [Indexed: 08/01/2023]
Abstract
BACKGROUND Cell surface molecules play important roles in cell signal transduction pathways during microbial infection. OBJECTIVE In this study, the expression and the functions of CD59 was investigated in H. pylori infected gastric cancer (GC). METHODS AND RESULTS The differential expression of CD59 and the influence of H. pylori on the expression of CD59 were analyzed via bioinformatics through Gene Set Enrichment in GC. In addition, the expression of CD59 in GES-1, AGS cells and GC tissues infected with H. pylori was confirmed by Western blot. Bioinformatics results and H. pylori infection experiments showed CD59 decreased obviously in H. pylori infected GC cells and tissues. The expression of CD59 was linked to the survival rate of GC patients, and influenced various immune cells in the immune microenvironment of GC. CD59 interacts with other genes to form a network in H. pylori infected GC. Certainly, CD59 decreased significantly in H. pylori infected GC tissues, GES-1 and AGS cells in vitro. CONCLUSION H. pylori infection could influence the expression of CD59 in GC indicating that CD59 may be a promising treatment target.
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Affiliation(s)
- Jun Sun
- Department of Medical Service, Kunshan First People's Hospital, Kunshan, Jiangsu, China
- Department of Medical Service, Kunshan First People's Hospital, Kunshan, Jiangsu, China
| | - Hui Cao
- Department of food safety and evaluation, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, China
- Department of Medical Service, Kunshan First People's Hospital, Kunshan, Jiangsu, China
| | - Tingting Wen
- Department of Pharmacy, Kunshan First People's Hospital, Kunshan, Jiangsu, China
| | - Zi Xu
- Department of Clinical Laboratory, Kunshan First People's Hospital, Kunshan, Jiangsu, China
| | - Xian Zhang
- Department of Clinical Laboratory, Kunshan First People's Hospital, Kunshan, Jiangsu, China
| | - Jianjun Wang
- Department of Clinical Laboratory, Kunshan First People's Hospital, Kunshan, Jiangsu, China
| | - Hong Zhu
- Department of Clinical Laboratory, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
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4
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Wang J, Jiang N, Sang X, Yang N, Feng Y, Chen R, Wang X, Chen Q. Protein Modification Characteristics of the Malaria Parasite Plasmodium falciparum and the Infected Erythrocytes. Mol Cell Proteomics 2020; 20:100001. [PMID: 33517144 PMCID: PMC7857547 DOI: 10.1074/mcp.ra120.002375] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 11/04/2020] [Indexed: 12/14/2022] Open
Abstract
Malaria elimination is still pending on the development of novel tools that rely on a deep understanding of parasite biology. Proteins of all living cells undergo myriad posttranslational modifications (PTMs) that are critical to multifarious life processes. An extensive proteome-wide dissection revealed a fine PTM map of most proteins in both Plasmodium falciparum, the causative agent of severe malaria, and the infected red blood cells. More than two-thirds of proteins of the parasite and its host cell underwent extensive and dynamic modification throughout the erythrocytic developmental stage. PTMs critically modulate the virulence factors involved in the host-parasite interaction and pathogenesis. Furthermore, P. falciparum stabilized the supporting proteins of erythrocyte origin by selective demodification. Collectively, our multiple omic analyses, apart from having furthered a deep understanding of the systems biology of P. falciparum and malaria pathogenesis, provide a valuable resource for mining new antimalarial targets.
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Affiliation(s)
- Jianhua Wang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Shenyang Agricultural University, Shengyang, China; The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China; College of Food Science, Shenyang Agricultural Sciences, Shenyang, China
| | - Ning Jiang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Shenyang Agricultural University, Shengyang, China; The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Xiaoyu Sang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Shenyang Agricultural University, Shengyang, China; The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Na Yang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Shenyang Agricultural University, Shengyang, China; The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Ying Feng
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Shenyang Agricultural University, Shengyang, China; The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Ran Chen
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Shenyang Agricultural University, Shengyang, China; The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Xinyi Wang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Shenyang Agricultural University, Shengyang, China; College of Basic Sciences, Shenyang Agricultural University, Shenyang, China
| | - Qijun Chen
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, Shenyang Agricultural University, Shengyang, China; The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China.
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5
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Bloch EM, Branch HA, Sakac D, Leger RM, Branch DR. Differential red blood cell age fractionation and Band 3 phosphorylation distinguish two different subtypes of warm autoimmune hemolytic anemia. Transfusion 2020; 60:1856-1866. [PMID: 32750167 DOI: 10.1111/trf.15911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 04/20/2020] [Accepted: 05/18/2020] [Indexed: 11/29/2022]
Abstract
Warm autoimmune hemolytic anemia (wAIHA) is a blood disorder characterized by the increased destruction of autologous red blood cells (RBCs) due to the presence of opsonizing pathogenic autoantibodies. Preliminary reports published more than three decades ago proposed the presence of two wAIHA subtypes: Type I, in which autoantibodies preferentially recognize the oldest, most dense RBCs; and Type II, characterized by autoantibodies that show no preference. STUDY DESIGN AND METHODS We evaluated patients having wAIHA for Type I and II subtype using discontinuous Percoll gradient age fractionation and direct antiglobulin test (DAT). We performed Western immunoblotting and mass spectrometry to show autoantibody specificity for Band 3. We investigated Band 3 tyrosine phosphorylation in different Percoll fractions to determine aging associated with oxidative stress. RESULTS We confirm the existence of two subtypes of wAIHA, Type I and Type II, and that autoantibodies recognize Band 3. Type I patients were characterized by five Percoll fractions, with a DAT showing IgG opsonization F1 < F5 and elevated Band 3 phosphorylation compared to healthy controls (HCs). In contrast, Type II wAIHA patients were characterized by three to four Percoll fractions, where the DAT IgG opsonization shows F1 ≥ F3/4 and Band 3 phosphorylation was absent or significantly decreased compared to HC. CONCLUSIONS Type I patients have increased Band 3 tyrosine phosphorylation that may represent accelerated aging of their RBCs resulting in exacerbation of a pathologic form of RBC senescence. Type II patients show decreased Band 3 tyrosine phosphorylation and lack the oldest, most dense RBCs suggesting premature RBC clearance and a more severe wAIHA.
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Affiliation(s)
- Evgenia M Bloch
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.,Centre for Innovation, Canadian Blood Services, Toronto, Ontario, Canada
| | - Haley A Branch
- Centre for Innovation, Canadian Blood Services, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Darinka Sakac
- Centre for Innovation, Canadian Blood Services, Toronto, Ontario, Canada
| | - Regina M Leger
- American Red Cross, Southern California Region, Pomona, California, USA
| | - Donald R Branch
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.,Centre for Innovation, Canadian Blood Services, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
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6
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Mufarrege N, Franco N, Trucco Boggione C, Arnoni C, Paula Vendrame T, Bartoli S, Ensinck A, Principi C, Lujan Brajovich M, Mattaloni S, Riquelme B, Biondi C, Castilho L, Cotorruelo C. Extensive clinical, serologic and molecular studies lead to the first reported
Rh
mod
phenotype in Argentina. Transfusion 2020; 60:1373-1377. [DOI: 10.1111/trf.15792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/09/2020] [Accepted: 03/13/2020] [Indexed: 11/29/2022]
Affiliation(s)
- Nicolás Mufarrege
- Laboratorio de Inmunohematología e Inmunogenética. IDICER – CONICETUniversidad Nacional de Rosario ‐ Facultad de Ciencias Bioquímicas y Farmacéuticas Rosario Argentina
| | - Noelia Franco
- Unidad de Hemato – Oncología PediátricaHospital Materno Infantil Dr. Héctor Quintana Jujuy Argentina
| | - Carolina Trucco Boggione
- Laboratorio de Inmunohematología e Inmunogenética. IDICER – CONICETUniversidad Nacional de Rosario ‐ Facultad de Ciencias Bioquímicas y Farmacéuticas Rosario Argentina
| | - Carine Arnoni
- Colsan‐Associacao Beneficente de Coleta de Sangue Sao Paulo Brazil
| | | | | | - Alejandra Ensinck
- Laboratorio de Inmunohematología e Inmunogenética. IDICER – CONICETUniversidad Nacional de Rosario ‐ Facultad de Ciencias Bioquímicas y Farmacéuticas Rosario Argentina
| | - Cintia Principi
- Laboratorio de Inmunohematología e Inmunogenética. IDICER – CONICETUniversidad Nacional de Rosario ‐ Facultad de Ciencias Bioquímicas y Farmacéuticas Rosario Argentina
| | - Melina Lujan Brajovich
- Laboratorio de Inmunohematología e Inmunogenética. IDICER – CONICETUniversidad Nacional de Rosario ‐ Facultad de Ciencias Bioquímicas y Farmacéuticas Rosario Argentina
| | - Stella Mattaloni
- Laboratorio de Inmunohematología e Inmunogenética. IDICER – CONICETUniversidad Nacional de Rosario ‐ Facultad de Ciencias Bioquímicas y Farmacéuticas Rosario Argentina
| | - Bibiana Riquelme
- Área FísicaGrupo de Física Biomédica, IFIR (CONICET‐UNR). Universidad Nacional de Rosario ‐ Facultad de Ciencias Bioquímicas y Farmacéuticas Rosario Argentina
| | - Claudia Biondi
- Laboratorio de Inmunohematología e Inmunogenética. IDICER – CONICETUniversidad Nacional de Rosario ‐ Facultad de Ciencias Bioquímicas y Farmacéuticas Rosario Argentina
| | | | - Carlos Cotorruelo
- Laboratorio de Inmunohematología e Inmunogenética. IDICER – CONICETUniversidad Nacional de Rosario ‐ Facultad de Ciencias Bioquímicas y Farmacéuticas Rosario Argentina
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7
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Zhang J, Tan SB, Guo ZG. CD47 decline in pancreatic islet cells promotes macrophage-mediated phagocytosis in type I diabetes. World J Diabetes 2020; 11:239-251. [PMID: 32547698 PMCID: PMC7284019 DOI: 10.4239/wjd.v11.i6.239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/30/2020] [Accepted: 04/19/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Type I diabetes (T1D) is characterized by insulin loss caused by inflammatory cells that excessively infiltrate and destroy the pancreas, resulting in dysregulation of tissue homeostasis, mechanobiological properties, and the immune response. The streptozotocin (STZ)-induced mouse model exhibits multiple features of human T1D and enables mechanistic analysis of disease progression. However, the relationship between the mechanochemical signaling regulation of STZ-induced T1D and macrophage migration and phagocytosis is unclear.
AIM To study the mechanochemical regulation of STZ-induced macrophage response on pancreatic beta islet cells to gain a clearer understanding of T1D.
METHODS We performed experiments using different methods. We stimulated isolated pancreatic beta islet cells with STZ and then tested the macrophage migration and phagocytosis.
RESULTS In this study, we discovered that the integrin-associated surface factor CD47 played a critical role in immune defense in the STZ-induced T1D model by preventing pancreatic beta islet inflammation. In comparison with healthy mice, STZ-treated mice showed decreased levels of CD47 on islet cells and reduced interaction of CD47 with signal regulatory protein α (SIRPα), which negatively regulates macrophage-mediated phagocytosis. This resulted in weakened islet cell immune defense and promoted macrophage migration and phagocytosis of target inflammatory cells. Moreover, lipopolysaccharide-activated human acute monocytic leukemia THP-1 cells also exhibited enhanced phagocytosis in the STZ-treated islets, and the aggressive attack of the inflammatory islets correlated with impaired CD47-SIRPα interactions. In addition, CD47 overexpression rescued the pre-labeled targeted cells.
CONCLUSION This study indicates that CD47 deficiency promotes the migration and phagocytosis of macrophages and provides mechanistic insights into T1D by associating the interactions between membrane structures and inflammatory disease progression.
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Affiliation(s)
- Jing Zhang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210097, Jiangsu Province, China
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, United States
| | - Su-Bee Tan
- National Key Laboratory for Biochemistry, College of Life Sciences, Nanjing University, Nanjing 210093, Jiangsu Province, China
| | - Zhi-Gang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210097, Jiangsu Province, China
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8
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Stachurska A, Dorman M, Korsak J, Gaweł D, Grzanka M, Trybus W, Fabijanska-Mitek J. Selected CD molecules and the phagocytosis of microvesicles released from erythrocytes ex vivo. Vox Sang 2019; 114:576-587. [PMID: 31281973 DOI: 10.1111/vox.12819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 01/28/2019] [Accepted: 03/28/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND OBJECTIVES The accumulation of microvesicles in erythrocyte concentrates during storage or irradiation may be responsible for clinical symptoms such as inflammation, coagulation and immunization. Our aim was to determine whether any of the cluster of differentiation (CD) molecules responsible for important functions are present on microvesicles, and if their expression level is dependent on the storage period of erythrocyte concentrates. MATERIAL AND METHODS Erythrocyte microvesicles were isolated from 'fresh' (2nd day) and 'old' (42nd day) stored erythrocyte concentrates. Qualitative cytometric analysis of 0·5 µm, erythrocyte-derived, PS-exposing vesicles was performed using the annexin V-FITC, anti-CD235a-PE antibody and calibrated beads. The microvesicles were also visualized under a confocal microscope. The expression of the molecules CD235a, CD44, CD47, CD55, CD59 and of phosphatidylserine (PS) was compared using flow cytometry. Measurements of microvesicle phagocytosis by human monocytes were carried out using a flow cytometer and a confocal microscope. RESULTS The analysis of the microvesicles with calibration beads allowed us to identify these structures with a diameter of about 0·5 µm in the 'fresh' and 'old' samples. At day 2, the microvesicles had elevated expression levels of CD47, reduced expression levels of PS, CD55 and CD59. The phagocytosis index was higher for the microvesicles isolated from the 42-day-old erythrocyte concentrates. CONCLUSION This research may bring us closer to understanding the factors responsible for erythrocyte ageing and to evaluate the quality of stored red blood concentrates intended for transfusion.
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Affiliation(s)
- Anna Stachurska
- Department of Immunohematology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Małgorzata Dorman
- Department of Clinical Transfusiology, Military Institute of Medicine, Warsaw, Poland
| | - Jolanta Korsak
- Department of Clinical Transfusiology, Military Institute of Medicine, Warsaw, Poland
| | - Damian Gaweł
- Department of Biochemistry, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Małgorzata Grzanka
- Department of Biochemistry, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Wojciech Trybus
- Department of Cell Biology and Electron Microscopy, Institute of Biology, The Jan Kochanowski University, Kielce, Poland
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9
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Abstract
CD59 has been identified as a glycosylphosphatidylinositol-anchored membrane protein that acts as an inhibitor of the formation of the membrane attack complex to regulate complement activation. Recent studies have shown that CD59 is highly expressed in several cancer cell lines and tumor tissues. CD59 also regulates the function, infiltration and phenotypes of a variety of immune cells in the tumor microenvironment. Herein, we summarized recent advances related to the functions and mechanisms of CD59 in the tumor microenvironment. Therapeutic strategies that seek to modulate the functions of CD59 in the tumor microenvironment could be a promising direction for tumor immunotherapy.
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Affiliation(s)
- Ronghua Zhang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, PR China
| | - Qiaofei Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, PR China
| | - Quan Liao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, PR China
| | - Yupei Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, PR China
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10
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Consequences of dysregulated complement regulators on red blood cells. Blood Rev 2018; 32:280-288. [PMID: 29397262 DOI: 10.1016/j.blre.2018.01.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 12/07/2017] [Accepted: 01/25/2018] [Indexed: 02/07/2023]
Abstract
The complement system represents the first line of defense that is involved in the clearance of pathogens, dying cells and immune complexes via opsonization, induction of an inflammatory response and the formation of a lytic pore. Red blood cells (RBCs) are very important for the delivery of oxygen to tissues and are continuously in contact with complement proteins in the blood plasma. To prevent complement activation on RBCs, various complement regulatory proteins can be found in plasma and on the cell membrane. RBCs are special cells without a nucleus and having a slightly different make-up of complement regulators than nucleated cells, as membrane cofactor protein (MCP) is not expressed and complement receptor 1 (CR1) is highly expressed. Decreased expression and/or function of complement regulatory proteins may result in unwanted complement activation and accelerated removal of RBCs. This review describes complement regulation on RBCs and the consequences when this regulation is out of balance.
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11
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de Souza HADS, Costa-Correa EH, Bianco-Junior C, Andrade MCR, Lima-Junior JDC, Pratt-Riccio LR, Daniel-Ribeiro CT, Totino PRR. Detection of Signal Regulatory Protein α in Saimiri sciureus (Squirrel Monkey) by Anti-Human Monoclonal Antibody. Front Immunol 2017; 8:1814. [PMID: 29312325 PMCID: PMC5735064 DOI: 10.3389/fimmu.2017.01814] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/01/2017] [Indexed: 12/18/2022] Open
Abstract
Non-human primates (NHP) are suitable models for studying different aspects of the human system, including pathogenesis and protective immunity to many diseases. However, the lack of specific immunological reagents for neo-tropical monkeys, such as Saimiri sciureus, is still a major factor limiting studies in these models. An alternative strategy to circumvent this obstacle has been the selection of immunological reagents directed to humans, which present cross-reactivity with NHP molecules. In this context and considering the key role of inhibitory immunoreceptors—such as the signal regulatory protein α (SIRPα)—in the regulation of immune responses, in the present study, we attempted to evaluate the ability of anti-human SIRPα monoclonal antibodies to recognize SIRPα in antigen-presenting S. sciureus peripheral blood mononuclear cells (PBMC). As shown by flow cytometry analysis, the profile of anti-SIRPα staining as well as the levels of SIRPα-positive cells in PBMC from S. sciureus were similar to those observed in human PBMC. Furthermore, using anti-SIRPα monoclonal antibody, it was possible to detect a decrease of the SIRPα levels on surface of S. sciureus cells after in vitro stimulation with lipopolysaccharides. Finally, using computed-based analysis, we observed a high degree of conservation of SIRPα across six species of primates and the presence of shared epitopes in the extracellular domain between humans and Saimiri genus that could be targeted by antibodies. In conclusion, we have identified a commercially available anti-human monoclonal antibody that is able to detect SIRPα of S. sciureus monkeys and that, therefore, can facilitate the study of the immunomodulatory role of SIRPα when S. sciureus is used as a model.
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Affiliation(s)
| | - Edmar Henrique Costa-Correa
- Laboratory for Malaria Research, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Cesare Bianco-Junior
- Laboratory for Malaria Research, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | | | | | - Lilian Rose Pratt-Riccio
- Laboratory for Malaria Research, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Cláudio Tadeu Daniel-Ribeiro
- Laboratory for Malaria Research, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Paulo Renato Rivas Totino
- Laboratory for Malaria Research, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
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12
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Loniewska-Lwowska A, Koza K, Mendek-Czajkowska E, Wieszczy P, Adamowicz-Salach A, Branicka K, Witos I, Sapala-Smoczynska A, Jackowska T, Fabijanska-Mitek J. Diminished presentation of complement regulatory protein CD55 on red blood cells from patients with hereditary haemolytic anaemias. Int J Lab Hematol 2017; 40:128-135. [PMID: 28963754 DOI: 10.1111/ijlh.12752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 09/04/2017] [Indexed: 01/16/2023]
Abstract
INTRODUCTION Hereditary haemolytic anaemias (HHA) encompass a heterogeneous group of anaemias characterized by decreased red blood cell survival. The aim of this study was to evaluate the status of red blood cell (RBC) surface molecules known or previously proposed to participate in preventing premature RBC clearance, analysing erythrocytes from patients with two types of HHA: hereditary spherocytosis (HS) and microcytosis. MATERIAL/METHODS Relative binding of five monoclonal antibodies (mAbs), anti-CD55, anti-CD59, anti-CD44, anti-CD47 and anti-CD58, was evaluated in erythrocytes of patients with HS and hereditary microcytosis, using flow cytometry. The amount of CD55 protein was assessed by semi-quantitative Western blots densitometry analysis. RESULTS The majority of both HS and microcytic patients demonstrated significant reduction of anti-CD55 binding by erythrocytes (average 23% and 19%, respectively, P < .001), with no concomitant anti-CD59-binding deficiency. Anti-CD44, anti-CD47 and anti-CD58 binding was within the healthy control range or was slightly decreased. CONCLUSIONS This study provides evidence supporting the presence of erythrocytes deficient in CD55 presentation in HS and hereditary microcytosis. Moreover, deficiency of CD55 antigen presentation on RBC does not correlate with the amount of CD55 in RBC membrane. Further studies using molecular techniques will clarify the exact participation of CD55 deficiency in premature RBC clearance in HHA.
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Affiliation(s)
- A Loniewska-Lwowska
- Department of Immunohaematology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - K Koza
- Department of Immunohaematology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - E Mendek-Czajkowska
- Outpatient Clinic for Congenital Anaemias, Institute of Haematology and Blood Transfusion, Warsaw, Poland
| | - P Wieszczy
- Department of Gastroenterology and Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland.,Department of Cancer Prevention, The Maria Skłodowska-Curie Memorial Cancer Centre and Institute of Oncology, Warsaw, Poland
| | - A Adamowicz-Salach
- Department of Paediatrics, Haematology and Oncology, Medical University of Warsaw, Warsaw, Poland
| | - K Branicka
- Department of Immunohaematology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - I Witos
- Department of Immunohaematology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - A Sapala-Smoczynska
- Department of Paediatrics, Medical Centre of Postgraduate Education, Bielanski Hospital, Warsaw, Poland
| | - T Jackowska
- Department of Paediatrics, Medical Centre of Postgraduate Education, Bielanski Hospital, Warsaw, Poland
| | - J Fabijanska-Mitek
- Department of Immunohaematology, Centre of Postgraduate Medical Education, Warsaw, Poland
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Dai Y, Huo X, Zhang Y, Yang T, Li M, Xu X. Elevated lead levels and changes in blood morphology and erythrocyte CR1 in preschool children from an e-waste area. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 592:51-59. [PMID: 28301822 DOI: 10.1016/j.scitotenv.2017.03.080] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 03/08/2017] [Accepted: 03/08/2017] [Indexed: 02/05/2023]
Abstract
Improper dismantling and combustion of electronic waste (e-waste) may release persistent organic pollutants and heavy metals that possess potential risk for human health. Lead (Pb) is carried through the circulatory system by erythrocytes and is known to alter the functions of hematopoietic and immune systems. The aim of the study was to investigate the effect of Pb exposure on blood morphology and erythrocyte complement receptor 1 (CR1) levels as related to immunologic function in preschool children. We recruited 484 preschool children, 2- to 6-years of age, among whom 332 children were from Guiyu, a typical and primitive e-waste processing area, and 152 children from Haojiang (reference area). Results showed that the blood Pb level (BPb) and erythrocyte Pb level (EPb) of exposed children were significantly higher, but, the mean corpuscular hemoglobin concentration (MCHC) and erythrocyte CR1 levels were significantly lower than reference children. Elevated EPb and BPb was related to disadvantageous changes in hematocrit (HCT), mean corpuscular volume (MCV), hemoglobin (HGB), mean corpuscular hemoglobin (MCH), and MCHC, respectively, in children from the e-waste recycling area. Furthermore, in the high Pb-exposed group, the Pb toxicity of erythrocytes was more significant compared to the low Pb-exposed group in e-waste-exposed children. Combine with the BPb and EPb would be better to evaluating the Pb toxicity of erythrocytes. Compared to low Pb exposure, high BPb and EPb were associated with lower erythrocyte CR1 expression in all children. Our data suggests that elevated Pb levels result in adverse changes in blood morphology, hemoglobin synthesis and CR1 expression, which might be a non-negligible threat to erythrocyte immunity development in local preschool children. It is therefore imperative for any intervention to control the Pb exposure of children and actively educate adults to raise their environmental awareness of potential e-waste pollution during the recycling process.
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Affiliation(s)
- Yifeng Dai
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, Guangdong 515041, China; Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, Guangdong 515041, China; Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, Guangdong 515041, China; School of Environment, Guangzhou Key Laboratory of Environmental Exposure and Health, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yu Zhang
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, Guangdong 515041, China; Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Tian Yang
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, Guangdong 515041, China; Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Minghui Li
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, Guangdong 515041, China; Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Xijin Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, Shantou, Guangdong 515041, China; Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, Guangdong 515041, China; Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong 515041, China.
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Expression of CD55, CD59, and CD35 on red blood cells of β-thalassaemia patients. Cent Eur J Immunol 2017; 42:78-84. [PMID: 28680334 PMCID: PMC5470617 DOI: 10.5114/ceji.2017.67321] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 10/17/2016] [Indexed: 01/07/2023] Open
Abstract
AIM OF THE STUDY β-thalassaemia (β-Thal) is considered a severe, progressive haemolytic anaemia, which needs regular blood transfusions for life expectancy. Complement-mediated erythrocyte destruction can cause both intravascular and extravascular haemolysis. Complement regulatory proteins protect cells from such effects of the complement system. We aimed to perform quantitative analysis of membrane-bound complement regulators, CD55 (decay accelerating factor - DAF), CD35 (complement receptor type 1 - CR1), and CD59 (membrane attack complex inhibitory factor - MACIF) on peripheral red blood cells by flow cytometry. MATERIAL AND METHODS The present study was carried out on 47 β-thalassemia major (β-TM) patients, 20 β-thalassaemia intermedia (β-TI) patients, and 17 healthy volunteers as control subjects. RESULTS CD55 levels of β-TM patients (58.64 ±17.06%) were significantly decreased compared to β-TI patients (83.34 ±13.82%) and healthy controls (88.57 ±11.69%) (p < 0.01). CD59 levels of β-TM patients were not significantly different than β-TI patients and controls, but CD35 levels were significantly lower in the β-TM patients (3.56 ±4.87%) and β-TI patients (12.48 ±9.19%) than in the control group (39.98 ±15.01%) (p < 0.01). CONCLUSIONS Low levels of CD55 and CD35 in thalassaemia major patients indicates a role for them in the aetiopathogenesis of haemolysis in this disease, and also this defect in a complement system may be responsible for the chronic complications seen in these patients.
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Sys J, Provan D, Schauwvlieghe A, Vanderschueren S, Dierickx D. The role of splenectomy in autoimmune hematological disorders: Outdated or still worth considering? Blood Rev 2017; 31:159-172. [DOI: 10.1016/j.blre.2017.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 12/12/2016] [Accepted: 01/03/2017] [Indexed: 01/26/2023]
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Klei TRL, Meinderts SM, van den Berg TK, van Bruggen R. From the Cradle to the Grave: The Role of Macrophages in Erythropoiesis and Erythrophagocytosis. Front Immunol 2017; 8:73. [PMID: 28210260 PMCID: PMC5288342 DOI: 10.3389/fimmu.2017.00073] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/17/2017] [Indexed: 12/13/2022] Open
Abstract
Erythropoiesis is a highly regulated process where sequential events ensure the proper differentiation of hematopoietic stem cells into, ultimately, red blood cells (RBCs). Macrophages in the bone marrow play an important role in hematopoiesis by providing signals that induce differentiation and proliferation of the earliest committed erythroid progenitors. Subsequent differentiation toward the erythroblast stage is accompanied by the formation of so-called erythroblastic islands where a central macrophage provides further cues to induce erythroblast differentiation, expansion, and hemoglobinization. Finally, erythroblasts extrude their nuclei that are phagocytosed by macrophages whereas the reticulocytes are released into the circulation. While in circulation, RBCs slowly accumulate damage that is repaired by macrophages of the spleen. Finally, after 120 days of circulation, senescent RBCs are removed from the circulation by splenic and liver macrophages. Macrophages are thus important for RBCs throughout their lifespan. Finally, in a range of diseases, the delicate interplay between macrophages and both developing and mature RBCs is disturbed. Here, we review the current knowledge on the contribution of macrophages to erythropoiesis and erythrophagocytosis in health and disease.
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Affiliation(s)
- Thomas R L Klei
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, University of Amsterdam , Amsterdam , Netherlands
| | - Sanne M Meinderts
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, University of Amsterdam , Amsterdam , Netherlands
| | - Timo K van den Berg
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, University of Amsterdam , Amsterdam , Netherlands
| | - Robin van Bruggen
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, University of Amsterdam , Amsterdam , Netherlands
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Al-Faris L, Al-Humood S, Behbehani F, Sallam H. Altered Expression Pattern of CD55 and CD59 on Red Blood Cells in Anemia of Chronic Kidney Disease. Med Princ Pract 2017; 26:516-522. [PMID: 28957817 PMCID: PMC5848473 DOI: 10.1159/000481823] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 09/28/2017] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVE The aim of this study was to investigate the expression pattern of CD55 and CD59 on red blood cells (RBCs) in anemic chronic kidney disease (CKD) patients, and factors that might influence their expression. SUBJECTS AND METHODS Nighty-one adult anemic CKD patients and 80 healthy controls (HCs) were enrolled. Anemic CKD patients were divided into 3 subgroups based on receiving erythropoietin and renal replacement therapies. Flow cytometric analysis of CD55 and CD59 expression was performed on RBCs from blood samples obtained from CKD patients and HCs. RESULTS CD59 deficiency was significantly higher among CKD patients than HCs (n = 68, 74.7%, vs. n = 13, 16.3%, respectively; p < 0.001). The median proportions of CD55- and CD59-deficient RBCs in CKD patients were significantly higher compared to HCs (0.34 vs. 0.15, and 4.3 vs. 2.0, p < 0.001 and p < 0.001, respectively). The mean fluorescence intensity (MFI) of CD55 and CD59 expression was significantly lower in CKD patients compared to HCs (1.2 vs. 2.8, and 17.0 vs. 20.3, p < 0.04 and p < 0. 001, respectively). The hemoglobin level was inversely correlated with the proportions of CD55- and CD59-deficient RBCs (r = -0.37, p < 0.001, and r = -0.22, p < 0.02, respectively). The number of CD59-deficient patients was significantly different between the 3 subgroups of CKD patients (p = 0.001), and a significant difference was present in the MFI of CD55 and CD59 expression among the 3 subgroups (p = 0.04 and p = 0.03, respectively). CONCLUSION The expression pattern of CD55 and CD59 on RBCs is altered in anemic CKD patients, which could play a role in the pathogenesis of anemia in CKD.
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Affiliation(s)
- Lama Al-Faris
- Department of Pathology, Faculty of Medicine, Kuwait University, Safat, Kuwait City, Kuwait
| | - Salah Al-Humood
- Department of Pathology, Faculty of Medicine, Kuwait University, Safat, Kuwait City, Kuwait
- *Salah Al-Humood, FRCP/C, Department of Pathology, Faculty of Medicine, Kuwait University, PO Box 24923, Safat 13110 (Kuwait), E-Mail
| | - Fatma Behbehani
- Department of Laboratory Medicine, Nephrology Unit, Amiri Hospital, Kuwait City, Kuwait
| | - Husam Sallam
- Department of Medicine, Nephrology Unit, Amiri Hospital, Kuwait City, Kuwait
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Totino PRR, Daniel-Ribeiro CT, Ferreira-da-Cruz MDF. Evidencing the Role of Erythrocytic Apoptosis in Malarial Anemia. Front Cell Infect Microbiol 2016; 6:176. [PMID: 28018860 PMCID: PMC5145864 DOI: 10.3389/fcimb.2016.00176] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 11/21/2016] [Indexed: 01/06/2023] Open
Abstract
In the last decade it has become clear that, similarly to nucleated cells, enucleated red blood cells (RBCs) are susceptible to programmed apoptotic cell death. Erythrocytic apoptosis seems to play a role in physiological clearance of aged RBCs, but it may also be implicated in anemia of different etiological sources including drug therapy and infectious diseases. In malaria, severe anemia is a common complication leading to death of children and pregnant women living in malaria-endemic regions of Africa. The pathogenesis of malarial anemia is multifactorial and involves both ineffective production of RBCs by the bone marrow and premature elimination of non-parasitized RBCs, phenomena potentially associated with apoptosis. In the present overview, we discuss evidences associating erythrocytic apoptosis with the pathogenesis of severe malarial anemia, as well as with regulation of parasite clearance in malaria. Efforts to understand the role of erythrocytic apoptosis in malarial anemia can help to identify potential targets for therapeutic intervention based on apoptotic pathways and consequently, mitigate the harmful impact of malaria in global public health.
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Affiliation(s)
- Paulo R R Totino
- Laboratory of Malaria Research, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz Rio de Janeiro, Brazil
| | - Cláudio T Daniel-Ribeiro
- Laboratory of Malaria Research, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz Rio de Janeiro, Brazil
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Al-Faris L, Al-Rukhayes M, Al-Humood S. Expression pattern of CD55 and CD59 on red blood cells in sickle cell disease. ACTA ACUST UNITED AC 2016; 22:105-113. [PMID: 27667587 DOI: 10.1080/10245332.2016.1231988] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To investigate the pattern of CD55 and CD59 expression on RBCs of SCD patients, and its association with anemia, biochemical parameters of hemolysis, level of erythropoietin, and pro-inflammatory markers. METHODS Flow cytometric analysis was performed on RBCs from 71 adult SCD patients and 53 healthy controls, using the commercial REDQUANT kit. RESULTS CD59 deficiency was significantly higher among SCD patients than among healthy controls. The proportions of CD55-deficient and CD59-deficient RBCs from SCD patients were significantly higher when compared with those from healthy controls (0.17 vs. 0.09 and 2.1 vs. 1.2, respectively). The MFI of CD55 and CD59 expression on RBCs in SCD was significantly reduced when compared to the expression in healthy controls (5.2 vs. 6.4 and 19.4 vs 20.3, respectively). The pattern of CD55 and CD59 expression was not correlated with anemia, biomarkers of hemolysis, erythropoietin level, or other pro-inflammatory markers. DISCUSSION There is an altered pattern of CD55 and CD59 expression on RBCs of SCD Patients; however, it does not seem to play a causal role in the pathophysiology of anemia, and is unlikely to be influenced by the level of erythropoietin or other inflammatory mediators.
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Affiliation(s)
- Lama Al-Faris
- a Department of Pathology, Faculty of Medicine , Kuwait University , Safat , Kuwait
| | - Monera Al-Rukhayes
- a Department of Pathology, Faculty of Medicine , Kuwait University , Safat , Kuwait
| | - Salah Al-Humood
- a Department of Pathology, Faculty of Medicine , Kuwait University , Safat , Kuwait
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20
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Lyse or not to lyse: Clinical significance of red blood cell autoantibodies. Blood Rev 2015; 29:369-76. [DOI: 10.1016/j.blre.2015.05.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 05/03/2015] [Accepted: 05/04/2015] [Indexed: 01/08/2023]
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21
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Qiao Q, Teng X, Wang N, Lu R, Guo L, Zhang X, Du Y, Wang W, Chen S, Wu Q, He G, Wang Y, Hu W. A novel CRIg-targeted complement inhibitor protects cells from complement damage. FASEB J 2014; 28:4986-99. [PMID: 25114177 DOI: 10.1096/fj.14-258046] [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] [Indexed: 12/18/2022]
Abstract
The inappropriate activation of complement may contribute to various immune diseases. The alternative pathway (AP) predominates during complement activation regardless of the initiating pathways. Hence, the main AP regulator factor H (FH) holds great potential as an attractive therapeutic intervention. In addition, complement receptor of the immunoglobulin superfamily (CRIg) has been demonstrated to inhibit AP and, more notably, still specifically binds to C3b/iC3b. We thus developed novel CRIg-targeted complement inhibitors by connecting the functional domains of CRIg and FH, which we termed CRIg-FH and CRIg-L-FH. CRIg-L-FH, slightly more potent than CRIg-FH, considerably inhibited both AP- and also classical pathway (CP)-mediated hemolysis and successfully eliminated the deposition of C3b/iC3b. Kinetic analysis further revealed that the binding affinity constant (KD) of CRIg/FH was in the micromolar range, consistent with its long-lasting binding to complement-attacked cells. CRIg-L-FH efficiently protected aberrant erythrocytes of patients with paroxysmal nocturnal hemoglobinuria (PNH) from AP- and CP-mediated complement damage (IC50 was 22.43 and 64.69 nM, respectively). Moreover, CRIg-L-FH was found to inhibit complement activation induced by the anti-Thy1 antibody in a mesangioproliferative glomerulonephritis (MPGN) rat model. Hence, CRIg-L-FH protects glomerular mesangial cells (GMCs) from complement-mediated injury and proliferative lesions. These findings strongly suggest that CRIg/FH is a potential therapeutic drug candidate for a range of complement-mediated diseases.
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Affiliation(s)
- Qian Qiao
- Shanghai Cancer Center, Institutes of Biomedical Sciences, Department of Oncology, and
| | - Xiaoyan Teng
- Shanghai Cancer Center, Institutes of Biomedical Sciences, Department of Oncology, and
| | - Na Wang
- Shanghai Cancer Center, Institutes of Biomedical Sciences, Department of Oncology, and
| | - Renquan Lu
- Shanghai Cancer Center, Institutes of Biomedical Sciences, Department of Oncology, and
| | - Lin Guo
- Shanghai Cancer Center, Institutes of Biomedical Sciences, Department of Oncology, and
| | - Xin Zhang
- Shanghai Cancer Center, Institutes of Biomedical Sciences, Department of Oncology, and
| | - Yiqun Du
- Shanghai Cancer Center, Institutes of Biomedical Sciences, Department of Oncology, and
| | - Wenjuan Wang
- Ministry of Health Key Laboratory of Thrombosis and Hematostasis, Jiangsu Institute of Hematology, Department of Hematology, First Affiliated Hospital of Soochow University, Suzhou, China; and
| | - Suning Chen
- Ministry of Health Key Laboratory of Thrombosis and Hematostasis, Jiangsu Institute of Hematology, Department of Hematology, First Affiliated Hospital of Soochow University, Suzhou, China; and
| | - Qian Wu
- Ministry of Health Key Laboratory of Thrombosis and Hematostasis, Jiangsu Institute of Hematology, Department of Hematology, First Affiliated Hospital of Soochow University, Suzhou, China; and
| | - Guangsheng He
- Ministry of Health Key Laboratory of Thrombosis and Hematostasis, Jiangsu Institute of Hematology, Department of Hematology, First Affiliated Hospital of Soochow University, Suzhou, China; and
| | - Yingwei Wang
- Department of Microbiology and Immunology, Nanjing Medical University, Nanjing, China
| | - Weiguo Hu
- Shanghai Cancer Center, Institutes of Biomedical Sciences, Department of Oncology, and Department of Immunology, Shanghai Medical College, Fudan University, Shanghai, China;
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Abadie K, Hege KM. Severe refractory autoimmune hemolytic anemia with five-year complete hematologic response to third course of treatment with rituximab: a case report. J Med Case Rep 2014; 8:175. [PMID: 24889270 PMCID: PMC4077666 DOI: 10.1186/1752-1947-8-175] [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: 12/31/2013] [Accepted: 03/31/2014] [Indexed: 11/20/2022] Open
Abstract
Introduction Rituximab is an emerging treatment for autoimmune hemolytic anemia. We report the case of a patient with a five-year complete hematologic response to a third course of treatment with rituximab. Cases of response to rituximab re-treatments have been reported, but none to our knowledge that failed multiple prior treatments and achieved as durable a response. Case presentation A 45-year-old Hispanic man presented at age 26 with darkening urine and cold intolerance. His blood tests revealed elevated lactic dehydrogenase and bilirubin, a hemoglobin level of 7.4g/dL, and a positive Coombs test for complement C3 and immunoglobulin G antibody. A diagnosis of autoimmune hemolytic anemia was made. After failing multiple therapies including prednisone, splenectomy, immunoglobulin, cyclosporine, danocrine and azathioprine, our patient was treated with a four-week course of rituximab at a dose of 375mg/m2 weekly, 10 years following initial presentation. He achieved a rapid and complete hematologic response that lasted 25 months. Re-treatment with the same course of rituximab prompted a second response that lasted 18 months. A third re-treatment has achieved an ongoing five-year complete hematologic response. Conclusions This is an unusual case of a durable five-year remission of autoimmune hemolytic anemia with rituximab re-treatment following relapse after two prior courses of rituximab and despite the persistence of immunoglobulin G and complement-coated red blood cells. No mechanistic explanations for improved response to rituximab re-treatment in autoimmune hemolytic anemia have been reported in the literature. Future studies of rituximab or other B cell-targeting antibodies in the treatment of autoimmune hemolytic anemia should explore autoantibody immunoglobulin G subclass switching and alterations in complement inhibitory proteins on red blood cell membranes as potential correlates of hematologic response.
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Affiliation(s)
| | - Kristen M Hege
- Division of Hematology/Oncology, University of California, 400 Parnassus Ave, Ste 502, San Francisco, CA 94143-0324, USA.
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Barclay AN, van den Berg TK. The Interaction Between Signal Regulatory Protein Alpha (SIRPα) and CD47: Structure, Function, and Therapeutic Target. Annu Rev Immunol 2014; 32:25-50. [DOI: 10.1146/annurev-immunol-032713-120142] [Citation(s) in RCA: 448] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Neil Barclay
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK;
| | - Timo K. van den Berg
- Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, 1066 CX Amsterdam, The Netherlands;
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Du Y, Teng X, Wang N, Zhang X, Chen J, Ding P, Qiao Q, Wang Q, Zhang L, Yang C, Yang Z, Chu Y, Du X, Zhou X, Hu W. NF-κB and enhancer-binding CREB protein scaffolded by CREB-binding protein (CBP)/p300 proteins regulate CD59 protein expression to protect cells from complement attack. J Biol Chem 2013; 289:2711-24. [PMID: 24338025 DOI: 10.1074/jbc.m113.525501] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The complement system can be activated spontaneously for immune surveillance or induced to clear invading pathogens, in which the membrane attack complex (MAC, C5b-9) plays a critical role. CD59 is the sole membrane complement regulatory protein (mCRP) that restricts MAC assembly. CD59, therefore, protects innocent host cells from attacks by the complement system, and host cells require the constitutive and inducible expression of CD59 to protect themselves from deleterious destruction by complement. However, the mechanisms that underlie CD59 regulation remain largely unknown. In this study we demonstrate that the widely expressed transcription factor Sp1 may regulate the constitutive expression of CD59, whereas CREB-binding protein (CBP)/p300 bridge NF-κB and CREB, which surprisingly functions as an enhancer-binding protein to induce the up-regulation of CD59 during in lipopolysaccharide (LPS)-triggered complement activation, thus conferring host defense against further MAC-mediated destruction. Moreover, individual treatment with LPS, TNF-α, and the complement activation products (sublytic MAC (SC5b-9) and C5a) could increase the expression of CD59 mainly by activating NF-κB and CREB signaling pathways. Together, our findings identify a novel gene regulation mechanism involving CBP/p300, NF-κB, and CREB; this mechanism suggests potential drug targets for controlling various complement-related human diseases.
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Affiliation(s)
- Yiqun Du
- From the Cancer Institute, Collaborative Innovation Center of Cancer Medicine, Fudan University Shanghai Cancer Center and Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Dammermann W, Schipper P, Ullrich S, Fraedrich K, Schulze zur Wiesch J, Fründt T, Tiegs G, Lohse A, Lüth S. Increased expression of complement regulators CD55 and CD59 on peripheral blood cells in patients with EAHEC O104:H4 infection. PLoS One 2013; 8:e74880. [PMID: 24086391 PMCID: PMC3781141 DOI: 10.1371/journal.pone.0074880] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 08/07/2013] [Indexed: 11/18/2022] Open
Abstract
Background An outbreak of Shiga Toxin 2 (Stx-2) producing enterohemorrhagic and enteroaggregative E.coli (EAHEC) O104H4 infection in May 2011 caused enterocolitis and an unprecedented high 22% rate of hemolytic uremic syndrome (HUS). The monoclonal anti-C5 antibody Eculizumab (ECU) has been used experimentally in EAHEC patients with HUS but treatment efficacy is uncertain. ECU can effectively prevent hemolysis in paroxysmal nocturnal hemoglobinuria (PNH) caused by a lack of complement-regulating CD55 and CD59 on blood cells. We hypothesized a low expression of CD55 and CD59, as seen in PNH, might correlate with HUS development in EAHEC patients. Methods 76 EAHEC patients (34 only gastrointestinal symptoms [GI], 23: HUS, 19: HUS and neurological symptoms [HUS/N]) and 12 healthy controls (HC) were tested for the expression of CD55 and CD59 on erythrocytes and leukocytes retrospectively. Additionally, the effect of Stx-2 on CD55 and CD59 expression on erythrocytes and leukocytes was studied ex vivo. Results CD55 expression on erythrocytes was similar in all patient groups and HC while CD59 showed a significantly higher expression in HUS and HUS/N patients compared to HC and the GI group. CD55 and CD59 expression on leukocytes and their subsets was significantly higher in all patient groups compared to HC regardless of treatment type. However, CD59 expression on erythrocytes was significantly higher in HUS and HUS/N patients treated combined with plasma separation (PS) and ECU compared to HC. Adding Stx-2 ex vivo had no effect on CD55 and CD59 expression on leukocytes from HC or patients. Conclusion HUS evolved independently from CD55 and CD59 expression on peripheral blood cells in EAHEC O104:H4 infected patients. Our data do not support a role for CD55 and CD59 in HUS development during EAHEC O104:H4 infection and point to a different mechanism within the complement system for HUS development in EAHEC patients.
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Affiliation(s)
- Werner Dammermann
- Department of Medicine, University Medical Center Eppendorf, Hamburg, Germany
| | - Pim Schipper
- Department of Medicine, University Medical Center Eppendorf, Hamburg, Germany
| | - Sebastian Ullrich
- Department of Anatomy and Experimental Morphology, University Medical Center Eppendorf, Hamburg, Germany
| | - Katharina Fraedrich
- Department of Medicine, University Medical Center Eppendorf, Hamburg, Germany
| | | | - Thorben Fründt
- Department of Medicine, University Medical Center Eppendorf, Hamburg, Germany
| | - Gisa Tiegs
- Institute of Experimental Immunology and Hepatology, University Medical Center Eppendorf, Hamburg, Germany
| | - Ansgar Lohse
- Department of Medicine, University Medical Center Eppendorf, Hamburg, Germany
| | - Stefan Lüth
- Department of Medicine, University Medical Center Eppendorf, Hamburg, Germany
- * E-mail:
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Zhong ZN, Zhu SF, Yuan AD, Lu GH, He ZY, Fa ZQ, Li WH. Potential of placenta-derived mesenchymal stem cells as seed cells for bone tissue engineering: preliminary study of osteoblastic differentiation and immunogenicity. Orthopedics 2012; 35:779-88. [PMID: 22955387 DOI: 10.3928/01477447-20120822-07] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mesenchymal stem cells (MSCs) have been isolated from a variety of human tissues (eg, bone marrow, peripheral blood, muscle, fat, umbilical blood, amniotic fluid, embryonic tissues, and placenta). Placenta-derived MSCs (PDMSCs) have received considerable interest because of their wide availability and absence of ethical concerns. The authors characterized the biological properties, ultrastructure, growth factor production, and osteoblastic differentiation of PDMSCs and investigated their potential as seed cells for bone tissue engineering.
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Affiliation(s)
- Zhi-Nian Zhong
- Department of Orthopedics, First Hospital of Shaoguan, Guangdong Medical College, Guangdong, China
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Barros MM, Blajchman MA, Bordin JO. Warm Autoimmune Hemolytic Anemia: Recent Progress in Understanding the Immunobiology and the Treatment. Transfus Med Rev 2010; 24:195-210. [DOI: 10.1016/j.tmrv.2010.03.002] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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de Almeida AC, Barbosa SM, Lourdes Barjas-Castro MD, Olalla-Saad ST, Condino-Neto A. The role of glucocorticoid in SIRPα and SHP-1 gene expression in AIHA patients. Immunopharmacol Immunotoxicol 2009; 31:636-40. [DOI: 10.3109/08923970902939256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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