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Hadadi L, Hafezi M, Amirzargar AA, Sharifian RA, Abediankenari S, Asgarian-Omran H. Dysregulated Expression of Tim-3 and NKp30 Receptors on NK Cells of Patients with Chronic Lymphocytic Leukemia. Oncol Res Treat 2019; 42:202-208. [PMID: 30870839 DOI: 10.1159/000497208] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 01/23/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND In this study, the expression pattern of NKp30 and T cell immunoglobulin and mucin domain-containing molecule-3 (Tim-3), as candidates for activating and inhibitory receptors of NK cells, were evaluated in patients with chronic lymphocytic leukemia (CLL). PATIENTS AND METHODS 24 CLL patients and 19 healthy controls were enrolled. Fresh peripheral blood was collected from all subjects and stained with fluorochrome-conjugated antibodies. The frequency of CD56+/CD3-/NKp30+ and CD56+/CD3-/Tim-3+ cells was determined by multicolor flow cytometry. RESULTS Our results revealed that Tim-3 is significantly upregulated on natural killer (NK) cells of CLL patients in comparison to healthy controls. NK cells of CLL patients showed lower expression of NKp30-activating receptor compared to controls. Tim-3 expression pattern on NK cells of CLL patients was correlated with poor prognostic factors including low hemoglobin level, high absolute lymphocyte count, and high serum C-reactive protein level. CONCLUSION Dysregulated expression of Tim-3 and NKp30 receptors confirms the exhaustion state of NK cells in CLL. Our data introduce Tim-3 as a promising biomarker and potential target for immunotherapy of CLL.
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Affiliation(s)
- Leila Hadadi
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Morteza Hafezi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Akbar Amirzargar
- Department of Immunology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramazan Ali Sharifian
- Clinic of Hematology and Oncology, Vali-Asr Hospital, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeid Abediankenari
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.,Immunogenetics Research Center, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hossein Asgarian-Omran
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran, .,Immunogenetics Research Center, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran,
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2
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Hojjat-Farsangi M, Jeddi-Tehrani M, Daneshmanesh AH, Mozaffari F, Moshfegh A, Hansson L, Razavi SM, Sharifian RA, Rabbani H, Österborg A, Mellstedt H, Shokri F. Spontaneous Immunity Against the Receptor Tyrosine Kinase ROR1 in Patients with Chronic Lymphocytic Leukemia. PLoS One 2015; 10:e0142310. [PMID: 26562161 PMCID: PMC4642968 DOI: 10.1371/journal.pone.0142310] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 10/19/2015] [Indexed: 12/03/2022] Open
Abstract
Background ROR1 is a receptor tyrosine kinase expressed in chronic lymphocytic leukemia (CLL) and several other malignancies but absent in most adult normal tissues. ROR1 is considered an onco-fetal antigen. In the present study we analysed spontaneous humoral and cellular immunity against ROR1 in CLL patients. Materials and Methods Antibodies against ROR1 were analysed in 23 patients and 20 healthy donors by ELISA and Western blot. Purified serum IgG from patients was tested for cytotoxicity against CLL cells using the MTT viability assay. A cellular immune response against ROR1 derived HLA-A2 restricted 9 aa and 16 aa long peptides were analysed using peptide loaded dendritic cells co-cultured with autologous T cells from CLL patients (n = 9) and healthy donors (n = 6). IFN-γ, IL-5 and IL-17A-secreting T cells were assessed by ELISPOT and a proliferative response using a H3-thymidine incorporation assay. Results The majority of CLL patients had antibodies against ROR1. Significantly higher titers of anti-ROR1 antibodies were noted in patients with non-progressive as compared to progressive disease. The extracellular membrane-close ROR1 KNG domain seemed to be an immunodominant epitope. Ten patients with high titers of anti-ROR1 binding antibodies were tested for cytotoxicity. Five of those had cytotoxic anti-ROR1 antibodies against CLL cells. ROR1-specific IFN-γ and IL-17A producing T cells could be detected in CLL patients, preferentially in non-progressive as compared to patients with progressive disease (p<0.05). Conclusion ROR1 seemed to spontaneously induce a humoral as well as a T cell response in CLL patients. The data support the notion that ROR1 might be a specific neo-antigen and may serve as a target for immunotherapy.
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MESH Headings
- Amino Acid Sequence
- Antibodies/blood
- Antibodies/immunology
- Antibody-Dependent Cell Cytotoxicity/immunology
- Blotting, Western
- Enzyme-Linked Immunosorbent Assay
- Female
- HLA-A2 Antigen/immunology
- Humans
- Immunity/immunology
- Immunoglobulin G/blood
- Immunoglobulin G/immunology
- Interferon-gamma/immunology
- Interferon-gamma/metabolism
- Interleukin-17/immunology
- Interleukin-17/metabolism
- Interleukin-5/immunology
- Interleukin-5/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/blood
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Male
- Middle Aged
- Molecular Sequence Data
- Peptides/immunology
- Prognosis
- Receptor Tyrosine Kinase-like Orphan Receptors/immunology
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
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Affiliation(s)
- Mohammad Hojjat-Farsangi
- Department of Oncology-Pathology, Immune and Gene Therapy Lab, Cancer Center Karolinska (CCK), Karolinska University Hospital Solna and Karolinska Institute, Stockholm, Sweden
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Jeddi-Tehrani
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Amir Hossein Daneshmanesh
- Department of Oncology-Pathology, Immune and Gene Therapy Lab, Cancer Center Karolinska (CCK), Karolinska University Hospital Solna and Karolinska Institute, Stockholm, Sweden
| | - Fariba Mozaffari
- Department of Oncology-Pathology, Immune and Gene Therapy Lab, Cancer Center Karolinska (CCK), Karolinska University Hospital Solna and Karolinska Institute, Stockholm, Sweden
| | - Ali Moshfegh
- Department of Oncology-Pathology, Immune and Gene Therapy Lab, Cancer Center Karolinska (CCK), Karolinska University Hospital Solna and Karolinska Institute, Stockholm, Sweden
| | - Lotta Hansson
- Department of Oncology-Pathology, Immune and Gene Therapy Lab, Cancer Center Karolinska (CCK), Karolinska University Hospital Solna and Karolinska Institute, Stockholm, Sweden
- Department of Hematology-Oncology, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Seyed Mohsen Razavi
- Clinic of Hematology and Oncology, Firozgar Hospital, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ramazan Ali Sharifian
- Clinic of Hematology and Oncology, Vali-Asr Hospital, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hodjattallah Rabbani
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Anders Österborg
- Department of Oncology-Pathology, Immune and Gene Therapy Lab, Cancer Center Karolinska (CCK), Karolinska University Hospital Solna and Karolinska Institute, Stockholm, Sweden
- Department of Hematology-Oncology, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Håkan Mellstedt
- Department of Oncology-Pathology, Immune and Gene Therapy Lab, Cancer Center Karolinska (CCK), Karolinska University Hospital Solna and Karolinska Institute, Stockholm, Sweden
- * E-mail:
| | - Fazel Shokri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
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3
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Arandi N, Mirshafiey A, Jeddi-Tehrani M, Shaghaghi M, Sadeghi B, Abolhassani H, Sharifian RA, Rahiminejad MS, Aghamohammadi A. Alteration in frequency and function of CD4⁺CD25⁺FOXP3⁺ regulatory T cells in patients with immune thrombocytopenic purpura. Iran J Allergy Asthma Immunol 2014; 13:85-92. [PMID: 24338252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 02/04/2013] [Accepted: 03/03/2013] [Indexed: 06/03/2023]
Abstract
Immune thrombocytopenic purpura (ITP) is an autoimmune bleeding disorder characterized by production of auto-antibodies against platelet antigens. It is obvious that regulatory T cells (Tregs) have a major role in controlling immune homeostasis and preventing autoimmunity.To investigate the frequency and functions of Tregs, twenty ITP patients and twenty age- and sex-matched healthy controls were recruited. The peripheral blood mononuclear cells were isolated and the proportion of Tregs was defined by flow cytometry method. The expression of immune-regulatory markers, cytotoxic T-lymphocyte associated antigen-4 (CTLA-4) and glucocorticoid induced tumor necrosis factor receptor (GITR) were also assessed by quantitative Real-time PCR TaqMan method. For evaluation of Treg function, Tregs were enriched and their ability to inhibit proliferation of T cells was measured and levels of immune-regulatory cytokines IL-10 and TGF-β were also measured.Results showed that the frequency of Tregs and the mean fluorescence intensity of FOXP3 protein significantly decreased in ITP patients compared to those in healthy controls. In addition, there was a significant reduction in relative expression of both CTLA-4 and GITR mRNA in ITP patients (P=0.02 and P=0.006, respectively). The suppressive function of Tregs also diminished in ITP patients compared to that in controls. Both IL-10 and TGF-β cytokines were produced in lower amounts in ITP patients than controls.It could be concluded that alteration in Treg frequency and functional characteristics might be responsible for loss of self-tolerance and subsequently destructive immune responses observed in ITP patients.
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Affiliation(s)
- Nargess Arandi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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4
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Hamishehkar H, Beigmohammadi MT, Abdollahi M, Mousavi S, Ziaie S, Sharifian RA, Davoudi S, Mojtahedzadeh M. Pro-inflammatory cytokine profile of critically ill septic patients following therapeutic plasma exchange. Transfus Apher Sci 2013; 48:75-8. [DOI: 10.1016/j.transci.2012.07.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 07/31/2012] [Indexed: 01/31/2023]
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5
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Jadidi-Niaragh F, Jeddi-Tehrani M, Ansaripour B, Razavi SM, Sharifian RA, Shokri F. Reduced frequency of NKT-like cells in patients with progressive chronic lymphocytic leukemia. Med Oncol 2012; 29:3561-9. [PMID: 22669567 DOI: 10.1007/s12032-012-0262-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Accepted: 05/21/2012] [Indexed: 01/08/2023]
Abstract
Natural killer T (NKT) cells are a subset of innate immune cells displaying a limited repertoire of antigen specificities and CD1d restriction. Little is known about contribution of NKT cells in cancer initiation and progression. In this study, the frequencies of NKT-like cells, B cells expressing CD1d molecule and CD4(+) regulatory (Treg) cells were analyzed in 40 patients with chronic lymphocytic leukemia (CLL) and 15 healthy subjects by flow cytometry. Our results showed that the frequency of CD3(+)CD56(+) NKT-like cells is significantly decreased in progressive (4.9 ± 0.8 % of total CD3(+) T cells) compared with indolent (8.1 ± 1.2 %, p = 0.036) patients and healthy subjects (10.6 ± 1.7 %, p = 0.003). However, no association was found between NKT-like cell frequency and immunoglobulin heavy chain variable region gene (IGHV) mutation or CD38 and ZAP70 expression. On the other hand, expression of CD1d molecule was significantly higher in leukemic B cells of patients with CLL (75 ± 1.5 % of total CD19(+) B cells) compared to B cells from healthy subjects (59.6 ± 2.2 %, p < 0.001), with no significant difference between progressive and indolent patients. Interestingly, the frequency of Treg cells was inversely correlated with that of NKT-like cells in patients with CLL (r = -0.4, p = 0.002). Our results suggest a protective role for NKT-like cells in patients with CLL, which seems to be downregulated presumably by Treg cells.
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Affiliation(s)
- Farhad Jadidi-Niaragh
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, 14155, Iran
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6
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Asgarian-Omran H, Forghani P, Hojjat-Farsangi M, Roohi A, Sharifian RA, Razavi SM, Jeddi-Tehrani M, Rabbani H, Shokri F. Expression Profile of Galectin-1 and Galectin-3 Molecules in Different Subtypes of Chronic Lymphocytic Leukemia. Cancer Invest 2010; 28:717-25. [DOI: 10.3109/07357907.2010.494319] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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7
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Hojjat-Farsangi M, Jeddi-Tehrani M, Razavi SM, Sharifian RA, Mellstedt H, Shokri F, Rabbani H. Immunoglobulin heavy chain variable region gene usage and mutational status of the leukemic B cells in Iranian patients with chronic lymphocytic leukemia. Cancer Sci 2009; 100:2346-53. [DOI: 10.1111/j.1349-7006.2009.01341.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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8
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Memarian A, Hojjat-Farsangi M, Asgarian-Omran H, Younesi V, Jeddi-Tehrani M, Sharifian RA, Khoshnoodi J, Razavi SM, Rabbani H, Shokri F. Variation in WNT genes expression in different subtypes of chronic lymphocytic leukemia. Leuk Lymphoma 2009; 50:2061-70. [DOI: 10.3109/10428190903331082] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ali Memarian
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hojjat-Farsangi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Hossein Asgarian-Omran
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Younesi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Jeddi-Tehrani
- Immune and Gene Therapy Lab, Cancer Center Karolinska, Karolinska Hospital, Stockholm, Sweden
- Monoclonal Antibody Research Center, Avicenna Research Institute, Tehran, Iran
| | - Ramazan Ali Sharifian
- Clinic of Hematology and Oncology, Vali-Asr Hospital, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Jalal Khoshnoodi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohsen Razavi
- Clinic of Hematology and Oncology, Firozgar Hospital, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hodjatallah Rabbani
- Immune and Gene Therapy Lab, Cancer Center Karolinska, Karolinska Hospital, Stockholm, Sweden
- Monoclonal Antibody Research Center, Avicenna Research Institute, Tehran, Iran
| | - Fazel Shokri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
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9
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Farsangi MH, Jeddi-Tehrani M, Sharifian RA, Razavi SM, Khoshnoodi J, Rabbani H, Shokri F. Analysis of the immunoglobulin heavy chain variable region gene expression in Iranian patients with chronic lymphocytic leukemia. Leuk Lymphoma 2009; 48:109-16. [PMID: 17325854 DOI: 10.1080/10428190601043310] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
B-cell chronic lymphocytic leukemia (B-CLL) results from clonal expansion of phenotypically mature but functionally immature B-lymphocytes. The incidence of this type of leukemia is low in Asian countries, whereas it is the most frequent type of leukemia in the West. Previous investigations mainly conducted in Western populations have demonstrated non-random rearrangement of certain immunoglobulin variable region heavy (VH) and/or light (VL) chain genes in different groups of B-CLL patients. Little is known about the profile of VH gene expression in Asian patients. In the present study, we determined the frequency of VH gene family usage in 59 Iranian patients with B-CLL. VH gene family of patients was determined by reverse transcriptase-polymerase chain reaction using VH1-VH7 family specific primers. The most frequently expressed VH gene family was found to be VH3 (45.8%) followed by VH4 (32.2%), VH1 (18.6%), VH5 (1.7%) and VH6 (1.7%), with no expression of VH2 and VH7 gene families. The results indicate a lower representation of the VH1 and VH2 gene families and a higher representation of the VH4 gene family in Iranian B-CLL patients compared to Western patients, suggesting involvement of ethnic and/or environmental factors in B-CLL disease initiation.
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Affiliation(s)
- M Hojjat Farsangi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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10
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Kazemi T, Asgarian-Omran H, Hojjat-Farsangi M, Shabani M, Memarian A, Sharifian RA, Razavi SM, Jeddi-Tehrani M, Rabbani H, Shokri F. Fc receptor-like 1-5 molecules are similarly expressed in progressive and indolent clinical subtypes of B-cell chronic lymphocytic leukemia. Int J Cancer 2008; 123:2113-9. [DOI: 10.1002/ijc.23751] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Hojjat-Farsangi M, Jeddi-Tehrani M, Amirzargar AA, Razavi SM, Sharifian RA, Rabbani H, Shokri F. Human leukocyte antigen class II allele association to disease progression in Iranian patients with chronic lymphocytic leukemia. Hum Immunol 2008; 69:666-74. [PMID: 18722491 DOI: 10.1016/j.humimm.2008.07.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Revised: 07/20/2008] [Accepted: 07/22/2008] [Indexed: 11/15/2022]
Abstract
Chronic lymphocytic leukemia (CLL) is the most frequent type of leukemia in Western countries, but its incidence is low in Asian populations. In the present study we determined the frequency of DRB1 and DQB1 alleles in 87 Iranian CLL patients and 100 healthy controls using a polymerase chain reaction (PCR) technique. An increased frequency of DRB1*07 (p = 0.04), DQB1*06 (p = 0.01) alleles, and DRB1*13/DQB1*03 haplotype (p = 0.01) and decreased frequency of the DQB1*03 (p = 0.01) allele were observed in our patients compared with healthy controls. Comparison between patients with indolent (n = 42) and progressive (n = 38) disease revealed a significant increase in DRB1*04 and DRB5 alleles in progressive patients. Similarly, a higher frequency of DRB5 (p = 0.01) allele was observed in CD38(+) compared with CD38(-) patients. Classification of the patients into immunoglobulin variable region heavy-chain genes mutated and unmutated subtypes did not reveal significant differences for the expression of any of the HLA alleles or haplotypes between these two subtypes. Our findings observed in an Iranian population indicate that CLL could be associated with distinct HLA class II alleles and haplotypes of which the DQB1*06 allele and DRB1*13/DQB1*03 haplotype have not already been reported in CLL patients from other ethnic backgrounds. Some HLA class II alleles may contribute to disease progression in CLL.
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Affiliation(s)
- Mohammad Hojjat-Farsangi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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12
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Hojjat Farsangi M, Jeddi-Tehrani M, Razavi SM, Sharifian RA, Shamsian Khoramabadi A, Rabbani H, Shokri F. Immunophenotypic characterization of the leukemic B-cells from Iranian patients with chronic lymphocytic leukemia: association between CD38 expression and disease progression. Iran J Immunol 2008; 5:25-35. [PMID: 18319522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND Patients with B-cell chronic lymphocytic leukemia (B-CLL) have heterogeneous clinical courses, thus several biological parameters need to be added to the current clinical staging systems to predict disease outcome. Recent immunophenotypic studies performed mainly in Western populations have demonstrated the prognostic value of CD38 and ZAP-70 expression in B-CLL. OBJECTIVES To investigate the expression pattern of a variety of membrane antigens on leukemic cells from Iranian patients with CLL and to find out if there are any differences in the expression of these markers between indolent and progressive groups. METHODS In the present study, peripheral blood samples from 87 Iranian patients with B-CLL were analysed by flow cytometry. RESULTS In all cases, the neoplastic cells displayed B-CLL phenotype (CD5+/CD19+/sIg+). The vast majority of the cases expressed CD23, but failed to stain for CD3 or CD14. The leukemic cells of most patients expressed CD27 (84/87, 95.4%) and CD45RO (74/87, 83.9%) molecules, suggesting a memory B-cell phenotype. Comparison between the indolent (n=42) and progressive (n=37) patients revealed significantly higher frequency and intensity of CD38 expression in progressive group (40.5%) compared to indolent (11.9%) patients (p<0.05). None of the other membrane antigens were differentially expressed in these two groups of patients. CONCLUSION Our results obtained in an Asian ethnic population confirm and extend previous findings obtained from Western populations regarding the association of CD38 expression and disease progression in B-CLL.
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MESH Headings
- ADP-ribosyl Cyclase 1/biosynthesis
- ADP-ribosyl Cyclase 1/immunology
- Adult
- Aged
- Aged, 80 and over
- Antigens, Neoplasm/biosynthesis
- Antigens, Neoplasm/immunology
- B-Lymphocytes/immunology
- B-Lymphocytes/pathology
- Biomarkers, Tumor
- Disease Progression
- Female
- Humans
- Immunophenotyping
- Iran
- Leukemia, Lymphocytic, Chronic, B-Cell/blood
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukemia, Lymphocytic, Chronic, B-Cell/physiopathology
- Male
- Middle Aged
- Neoplasm Staging
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Affiliation(s)
- Mohammad Hojjat Farsangi
- Department of Immunology, School of Public Health, Medical Sciences/Tehran University, Tehran, Iran
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13
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Memarian A, Jeddi Tehrani M, Vossough P, Sharifian RA, Rabbani H, Shokri F. Expression profile of Wnt molecules in leukemic cells from Iranian patients with acute myeloblastic leukemia. Iran J Immunol 2007; 4:145-154. [PMID: 17767013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
BACKGROUND Wnt molecules play a key role in growth, proliferation and development of some embryonic and adult organs as well as hematopoietic stem cells. Wnt signaling pathways are aberrantly activated in many tumor types, including solid tumors and hematologic malignancies. OBJECTIVE To investigate the expression profile of a large number of Wnt genes in leukemic cells from Iranian patients with acute myeloblastic leukemia. METHODS RT-PCR method was used to determine the Wnt genes expression in bone marrow (BM) and/or peripheral blood (PB) samples from 16 patients with AML and PB samples of 36 normal subjects. RESULTS Among 14 Wnt molecules included in this study, Wnt-7A and Wnt-10A were significantly down-regulated (p = 0.002 and p < 0.0001, respectively) and Wnt-3 was significantly over-expressed (p < 0.02) in AML patients compared to normal subjects. No significant association was found between Wnt expression and FAB classification of the patients. CONCLUSION Our results demonstrated for the first time aberrant expression of Wnt-7A, Wnt-10A and Wnt-3 genes in Iranian AML patients. This may be of relevance to the tumorigenesis process in this malignancy.
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Affiliation(s)
- Ali Memarian
- Department of Immunology, School of Public Health, Medical Sciences, University of Tehran, Tehran, Iran
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14
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Mikaelsson E, Danesh-Manesh AH, Lüppert A, Jeddi-Tehrani M, Rezvany MR, Sharifian RA, Safaie R, Roohi A, Osterborg A, Shokri F, Mellstedt H, Rabbani H. Fibromodulin, an extracellular matrix protein: characterization of its unique gene and protein expression in B-cell chronic lymphocytic leukemia and mantle cell lymphoma. Blood 2005; 105:4828-35. [PMID: 15741214 DOI: 10.1182/blood-2004-10-3941] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractFibromodulin is an extracellular matrix protein normally produced by collagen-rich tissues; the fibromodulin gene has been found to be the most overexpressed gene in B-cell chronic lymphocytic leukemia. In this study, fibromodulin was expressed at the gene level (reverse transcription-polymerase chain reaction [RT-PCR]) in all patients with B-CLL (n = 75) and in most (5 of 7) patients with mantle cell lymphoma (MCL). No mutations in the fibromodulin gene were detected. Fibromodulin was also detected at the protein level in the cytoplasm of the B-CLL cells and in the supernatant after in vitro cultivation, but not at the cell surface. Fibromodulin was not found in patients with T-cell chronic lymphocytic leukemia (T-CLL), B-cell prolymphocytic leukemia (B-PLL), T-cell prolymphocytic leukemia (T-PLL), hairy cell leukemia, follicular lymphoma, lymphoplasmacytic lymphoma, multiple myeloma, acute lymphoblastic leukemia (ALL), acute myelogenous leukemia (AML), or chronic myelogenous leukemia (CML) or in 36 hematologic cell lines. Normal blood mononuclear cells (T and B lymphocytes, monocytes), tonsil B cells, and granulocytes did not express fibromodulin. Activation (phorbol 12-myristate 13-acetate [PMA]/ionomycin) of normal T and B lymphocytes induced weak fibromodulin gene expression, but not to the extent seen in freshly isolated B-CLL cells. The reason for the exclusive ectopic expression of fibromodulin in B-CLL and MCL is unknown. However, its unique protein expression makes it likely that fibromodulin is involved in the pathobiology of B-CLL and MCL. (Blood. 2005;105:4828-4835)
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antigens, CD/biosynthesis
- Antigens, CD19/biosynthesis
- Antigens, Differentiation, T-Lymphocyte/biosynthesis
- Biomarkers, Tumor/metabolism
- Blotting, Western
- CD5 Antigens/biosynthesis
- Cell Line, Transformed
- Cell Line, Tumor
- Coculture Techniques
- Collagen/metabolism
- Cytoplasm/metabolism
- DNA Mutational Analysis
- DNA, Complementary/metabolism
- Extracellular Matrix/metabolism
- Extracellular Matrix Proteins/chemistry
- Extracellular Matrix Proteins/metabolism
- Female
- Fibroblasts/metabolism
- Fibromodulin
- Flow Cytometry
- Gene Expression Regulation, Neoplastic
- Hematologic Neoplasms/metabolism
- Humans
- Immunoblotting
- Lectins, C-Type
- Leukemia, B-Cell/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Leukemia, T-Cell/metabolism
- Leukocytes, Mononuclear/metabolism
- Lymphoma, Mantle-Cell/metabolism
- Male
- Middle Aged
- Mutation
- Palatine Tonsil/metabolism
- Proteoglycans/chemistry
- Proteoglycans/metabolism
- RNA, Messenger/metabolism
- Receptors, Interleukin-2/biosynthesis
- Reverse Transcriptase Polymerase Chain Reaction
- Tetradecanoylphorbol Acetate/pharmacology
- Time Factors
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Affiliation(s)
- Eva Mikaelsson
- Immune and Gene Therapy Laboratory, CCK, Department of Oncology, Karolinska University Hospital, Stockholm, Sweden
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15
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Towfighi F, Gharagozlou S, Sharifian RA, Kazemnejad A, Esmailzadeh K, Managhchi MR, Shokri F. Comparative measurement of anti-factor VIII antibody by Bethesda assay and ELISA reveals restricted isotype profile and epitope specificity. Acta Haematol 2005; 114:84-90. [PMID: 16103630 DOI: 10.1159/000086580] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2004] [Accepted: 11/25/2004] [Indexed: 11/19/2022]
Abstract
Factor VIII (FVIII) inhibitor antibodies are produced against functional epitopes of FVIII in about 30% of severe hemophilia A patients leading to inhibition of its procoagulant activity. The Bethesda assay, the most commonly used method to measure FVIII inhibitors, based on inhibition of coagulant activity of FVIII, is neither able to detect noninhibitory antibodies nor their isotype. In this study we employed an indirect enzyme-linked immunosorbent assay (ELISA) to measure dif ferent isotypes and IgG subclasses of anti-FVIII anti body in the plasma of hemophiliacs (with and without inhibitor) and normal individuals using recombinant FVIII-coated microtiter plates. The results showed a predominance of IgG and IgG4, though IgA was slightly elevated in a few inhibitor-positive patients and IgM was hardly detectable. A highly significant correlation was found between the Bethesda titer and the optical density values of total Ig, IgG and IgG4 anti-FVIII antibodies obtained by ELISA (p<0.0001). These findings suggest a restricted specificity of anti-FVIII response in hemophiliacs towards functional epitopes of the molecule. Furthermore, high specificity and reasonable sensitivity of the ELISA, together with other technical advantages, suggest this method as a suitable supplementary technique for rapid large-scale screening of inhibitor-positive samples, though ELISA-negative samples need to be rechecked by the Bethesda assay to identify patients with a low inhibitor titer.
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Affiliation(s)
- Farzaneh Towfighi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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16
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Gharagozlou S, Ghods R, Bahrami ZS, Roohi A, Jeddi-Tehrani M, Conti-Fine BM, Sharifian RA, Rabbani H, Shokri F. Characterization of human hybridoma clones isolated from hemophilia patients with specificity for different domains of coagulating factor VIII. Hum Antibodies 2003; 12:67-76. [PMID: 14646035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
Hemophilia A patients treated with human coagulating factor VIII (FVIII) may develop inhibitory antibodies (inhibitors). Characterization of the inhibitors at the clonal level may help exploring new therapeutic strategies. We have generated lymphoblastoid cell lines (LCLs) producing anti-FVIII antibodies from peripheral blood lymphocytes of hemophilia A patients with high inhibitor titers. We fused the anti-FVIII-positive LCLs with a heteromyeloma, to produce FVIII specific hybridomas. We determined the specificity, isotype, idiotypic and immunoglobulin (Ig) variable region heavy (VH) chain gene family profiles of the secreted antibodies (Ab) by ELISA, immunoblotting and RT-PCR. We established eight hybridomas which produced high titers of anti-FVIII Ab. All hybridomas secreted IgM Ab, associated with either kappa(5/8) or lambda(3/8) light chain. Analysis of the expressed VH genes by RT-PCR revealed that the hybridomas utilized only the VH1 (63%) or the VH3 (37%) gene families. Among the cross-reactive idiotypes (CRIs) we tested, only the VH1 and VK3b-associated CRIs were expressed by 3 hybridomas. Immunoblotting of thrombin-digested FVIII demonstrated distinct patterns of reactivity of the monoclonal Ab (MAb) secreted by the hybridomas, which recognized either the A2 domain of the Fvm heavy chain, or the light chain, or both. Our findings suggest that: a) the isotype of the anti-FVIII Ab secreted by LCLs and hybridoma clones (IgM) differs from that of anti-FVIII Ab in vivo, which are predominantly IgG4: this suggests a negative selection of the isotype-switched FVIII-specific B-cells in the periphery of these patients; b) the anti-FVIII Ab have a biased representation of the VH1 gene family, and c) somatic mutations in the VH genes coding for FVIII specificity occur in the anti-FVIII Ab response, as evidenced by lack of expression of the VH-associated CRI.
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Affiliation(s)
- S Gharagozlou
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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17
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Gharagozloo S, Sharifian RA, Mageed RA, Shokri F. Analysis of the expressed immunoglobulin variable region heavy chain gene products in paraproteins from Iranian patients with multiple myeloma. Pathol Oncol Res 2001; 6:185-90. [PMID: 11033458 DOI: 10.1007/bf03032371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The frequency of expression of immunoglobulin (Ig) variable region heavy (VH ) chain gene products was studied in 43 Iranian patients with mutiple myeloma (MM). The expressed VH gene families and associated cross-reactive idiotypes (CRI) were analysed by immunoblotting and ELISA, using peptide-induced polyclonal antibodies specific for VH 1-VH 6 gene families and monoclonal antibodies (MAb) recognising CRI linked to theVH 1, VH 3, VH 4 and VH 6 gene families. The results revealed that the VH 3 family (60. 5%) was the most predominant gene family. In contrast, no paraproteins were encoded by genes from the VH 2 gene family and only 2.3% were encoded by the VH 5 family. The panel of paraproteins tested rarely expressed the probed VH -associated CRI. Our results suggest that: 1-The Ig VH genes, may not be randomly expressed in the malignant plasma cells from Iranian patients with MM. 2- Some of the genes seem to be negatively selected or highly mutated, as evidenced by the lack of expression of the probed CRI.
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Affiliation(s)
- S Gharagozloo
- School of Public Health Tehran University of Medical Sciences, Department of Immunology, Tehran, 14155, I.R. Iran
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