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Abolnezhadian F, Iranparast S, Shohan M, Shokati Eshkiki Z, Hamed M, Seyedtabib M, Nashibi R, Assarehzadegan MA, Mard SA, Shayesteh AA, Neisi N, Makvandi M, Alavi SM, Shariati G. Evaluation the frequencies of HLA alleles in moderate and severe COVID-19 patients in Iran: A molecular HLA typing study. Heliyon 2024; 10:e28528. [PMID: 38590857 PMCID: PMC10999921 DOI: 10.1016/j.heliyon.2024.e28528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/16/2023] [Accepted: 03/20/2024] [Indexed: 04/10/2024] Open
Abstract
Background Severe acute respiratory syndrome coronavirus 2 was first reported in December 2019 and it has spread globally ever since. The HLA system is crucial in directing anti-viral immunity and recent studies are investigating the possible involvement of the HLA genes on the severity of immune inflammation in different phases of COVID-19. Methods In this cross-sectional study, peripheral blood-extracted genomic DNAs of 109 COVID-19 patients and 70 healthy controls were genotyped for different alleles of HLA-A, HLA-B, and HLA-DRB1 loci using sequence-specific primer PCR method. Results The results indicated that frequencies of HLA-DRB1*11:01 and HLA-DRB1*04:03 were significantly higher in severe patients rather than moderates (p: <0.001 and 0.004, respectively). Also, it was observed that HLA-DRB1*04:01 was more frequent in moderate patients and healthy controls (p:0.002). In addition, HLA-B*07:35, and HLA-DRB1*07:01 showed higher frequencies in patients compared with controls (p: 0.031 and 0.003 respectively). Inversely, due to the higher frequencies of HLA-B*51:01 (p:0.027), HLA-DRB1*11:05 (p:0.003), HLA-DRB1*13:05 (p:0.022), and HLA-DRB1*14:01 (p:0.006) in healthy individuals rather than patients, they may be associated with COVID-19 resistance. Conclusion The results show that, based on the population differences, the type of alleles related to the severity of COVID-19 is different, which should be clarified by designing large-scale studies in order to develop HLA-based treatments and vaccines.
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Affiliation(s)
- Farhad Abolnezhadian
- Department of Pediatrics, Abuzar Children's Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sara Iranparast
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Shohan
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Zahra Shokati Eshkiki
- Alimentary Tract Research Center, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahtab Hamed
- Immunobiology Center of Pasteur Medical Laboratory, Ahvaz, Iran
| | - Maryam Seyedtabib
- Department of Biostatistics & Epidemiology, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Roohangiz Nashibi
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Mard
- Physiology Research Center, Research Institute for Infectious Diseases of Digestive System and Department of Physiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Akbar Shayesteh
- Alimentary Tract Research Center, Imam Khomeini Hospital Clinical Research Development Unit, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Niloofar Neisi
- Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Manoochehr Makvandi
- Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyed Mohammad Alavi
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Gholamreza Shariati
- Department of Medical Genetics, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Shams MH, Sohrabi SM, Jafari R, Sheikhian A, Motedayyen H, Baharvand PA, Hasanvand A, Fouladvand A, Assarehzadegan MA. Designing a T-cell epitope-based vaccine using in silico approaches against the Sal k 1 allergen of Salsola kali plant. Sci Rep 2024; 14:5040. [PMID: 38424208 PMCID: PMC10904830 DOI: 10.1038/s41598-024-55788-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 02/27/2024] [Indexed: 03/02/2024] Open
Abstract
Allergens originated from Salsola kali (Russian thistle) pollen grains are one of the most important sources of aeroallergens causing pollinosis in desert and semi-desert regions. T-cell epitope-based vaccines (TEV) are more effective among different therapeutic approaches developed to alleviate allergic diseases. The physicochemical properties, and B as well as T cell epitopes of Sal k 1 (a major allergen of S. kali) were predicted using immunoinformatic tools. A TEV was constructed using the linkers EAAAK, GPGPG and the most suitable CD4+ T cell epitopes. RS04 adjuvant was added as a TLR4 agonist to the amino (N) and carboxyl (C) terminus of the TEV protein. The secondary and tertiary structures, solubility, allergenicity, toxicity, stability, physicochemical properties, docking with immune receptors, BLASTp against the human and microbiota proteomes, and in silico cloning of the designed TEV were assessed using immunoinformatic analyses. Two CD4+ T cell epitopes of Sal k1 that had high affinity with different alleles of MHC-II were selected and used in the TEV. The molecular docking of the TEV with HLADRB1, and TLR4 showed TEV strong interactions and stable binding pose to these receptors. Moreover, the codon optimized TEV sequence was cloned between NcoI and XhoI restriction sites of pET-28a(+) expression plasmid. The designed TEV can be used as a promising candidate in allergen-specific immunotherapy against S. kali. Nonetheless, effectiveness of this vaccine should be validated through immunological bioassays.
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Affiliation(s)
- Mohammad Hossein Shams
- Hepatitis Research Center and Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.
| | - Seyyed Mohsen Sohrabi
- Department of Production Engineering and Plant Genetic, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Box 6814993165, Ahvaz, Iran
| | - Reza Jafari
- School of Allied Medical Sciences, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Ali Sheikhian
- Hepatitis Research Center and Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Hossein Motedayyen
- Autoimmune Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Peyman Amanolahi Baharvand
- Hepatitis Research Center and Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Amin Hasanvand
- Department of Physiology and Pharmacology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Ali Fouladvand
- Hepatitis Research Center and Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Baghersad A, Shams MH, Shahsavar F, Sohrabi SM, Varzi AM, Baharvand PA, Eskandari N, Darestani NG, Sereshki HA, Doosti F, Assarehzadegan MA. Immunochemical Characterization of Salix alba (S. alba) Pollen Allergens and Evaluation of the Cross-Reactivity Pattern with Common Allergenic Pollen Grains. Int Immunopharmacol 2023; 124:110953. [PMID: 37757632 DOI: 10.1016/j.intimp.2023.110953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/04/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Pollens, particularly tree and plant pollens, are one of the major causes of allergic respiratory diseases worldwide. Allergy to pollens of different species of Salix trees has been reported in various regions of the world. The most common type of Salix tree in Iran is white willow (Salix alba). OBJECTIVES This study aimed to identify and determine the immunochemical characteristics of allergenic proteins in S. alba tree pollen extract using SDS-PAGE and IgE- immunoblotting methods. Moreover, the cross-reaction pattern of the specific IgE antibody of S. alba tree pollen proteins with pollen allergens of common allergenic trees, i.e., Populus nigra (P. nigra), Cupressus sempervirens (C. sempervirens), Pinus brutia (P. brutia) and Platanus orientalis (P. orientalis) in the region was investigated. METHODS The reaction of allergenic proteins in S. alba pollen extract with specific IgE antibodies in patients' sera was investigated using SDS-PAGE and IgE-immunoblotting methods. The cross-reaction of specific IgE antibodies of the proteins present in S. alba pollen extract with pollen allergens of common allergenic trees in the region was investigated using ELISA and immunoblotting inhibition methods. In silico methods such as phylogenetic tree drawing and alignment of amino acid sequences were used to examine the evolutionary relationship and homology structure of common allergenic proteins (Panallergens) responsible for cross reactions. RESULTS More than 11 protein bands binding to specific IgE antibodies in patients' sera with a molecular weight between 13 and 95 kDa were identified in the S. alba tree pollen extract. ELISA and immunoblotting inhibition results showed that P. nigra extract could inhibit the binding of IgE antibodies to S. alba pollen extract proteins to a greater extent than C. sempervirens, P. brutia, and P. orientalis tree extracts. In silico methods investigated the results of ELISA and immunoblotting inhibition methods. Moreover, a high structural homology and evolutionary relationship were observed between S. alba and P. nigra tree pollen panallergens. CONCLUSION In this study, it was found that more than 80 % of the sensitive patients who were examined had specific IgE antibodies reacting with the approximately a 15 kDa-protein present in the S. alba pollen extract. Furthermore, the specific IgE-binding proteins found in the pollens of S. alba and P. nigra trees had relative structural homology, and it is likely that if recombinant forms are produced, they can be used for diagnostic and therapeutic purposes for both of the trees.
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Affiliation(s)
- Ali Baghersad
- Hepatitis Research Center and Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mohammad Hossein Shams
- Hepatitis Research Center and Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.
| | - Farhad Shahsavar
- Hepatitis Research Center and Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Seyyed Mohsen Sohrabi
- Department of Production Engineering and Plant Genetic, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Ali Mohammad Varzi
- Hepatitis Research Center and Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Peyman Amanolahi Baharvand
- Hepatitis Research Center and Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Nahid Eskandari
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nadia Ghasemi Darestani
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hale Abdoli Sereshki
- Immunology Research Center, Department of Immunology, school of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Doosti
- Immunology and Allergy Research Center, Pasteur Medical Diagnostic Laboratory, Ahvaz, Iran
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Department of Immunology, school of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Goodarzi B, Azimi Mohammadabadi M, Jafari AJ, Gholami M, Kermani M, Assarehzadegan MA, Shahsavani A. Investigating PM 2.5 toxicity in highly polluted urban and industrial areas in the Middle East: human health risk assessment and spatial distribution. Sci Rep 2023; 13:17858. [PMID: 37857811 PMCID: PMC10587072 DOI: 10.1038/s41598-023-45052-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/15/2023] [Indexed: 10/21/2023] Open
Abstract
Exposure to particulate matter (PM) can be considered as a factor affecting human health. The aim of this study was to investigate the concentration of PM2.5 and heavy metals and their influence on survival of A549 human lung cells in exposure to PM2.5 breathing air of Ahvaz city. In order to assess the levels of PM2.5 and heavy metals, air samples were collected from 14 sampling stations positioned across Ahvaz city during both winter and summer seasons. The concentration of heavy metals was determined using ICP OES. Next, the MTT assay [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] was employed to ascertain the survival rate of A549 cells. The findings from this research demonstrated that average PM2.5 of the study period was (149.5 μg/m3). Also, the average concentration of PM2.5 in the urban area in winter and summer was (153.3- and 106.9 μg/m3) and in the industrial area this parameter was (191.6 and 158.3 μg/m3). The average concentration of metals (ng/m3) of urban areas against industrial, Al (493 vs. 485), Fe (536 vs. 612), Cu (198 vs. 212), Ni (128 vs. 129), Cr (48.5 vs. 54), Cd (118 vs. 124), Mn (120 vs. 119), As (51 vs. 67), Hg (37 vs. 50), Zn (302 vs. 332) and Pb (266 vs. 351) were obtained. The results of the MTT assay showed that the highest percentage of cell survival according to the exposure concentration was 25 > 50 > 100 > 200. Also, the lowest percentage of survival (58.8%) was observed in the winter season and in industrial areas with a concentration of 200 μg/ml. The carcinogenic risk assessment of heavy metals indicated that except for Cr, whose carcinogenicity was 1.32E-03, other metals were in the safe range (10-4-10-6) for human health. The high concentration of PM2.5 and heavy metals can increase respiratory and cardiovascular diseases and reduce the public health level of Ahvaz citizens.
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Affiliation(s)
- Babak Goodarzi
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Hormozgan University of Medical Sciences, Bandar Abbas, Hormozgan, Iran
| | - Maryam Azimi Mohammadabadi
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Ahmad Jonidi Jafari
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
- Air Pollution Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mitra Gholami
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Kermani
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran.
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
- Air Pollution Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences (IUMS), Tehran, Iran.
| | - Abbas Shahsavani
- Environmental and Occupational Hazards Control Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Taherian M, Bayati P, Assarehzadegan MA, Soleimani M, Poormoghim H, Mojtabavi N. Insights into Overlappings of Fibrosis and Cancer: Exploring the Tumor-related Cardinal Genes in Idiopathic Pulmonary Fibrosis. Iran J Allergy Asthma Immunol 2023; 22:190-199. [PMID: 37496412 DOI: 10.18502/ijaai.v22i2.12680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/03/2023] [Indexed: 07/28/2023]
Abstract
The pathogenesis of idiopathic pulmonary fibrosis (IPF) is quite similar to that of cancer pathogenesis, and several pathways appear to be involved in both disorders. The mammalian target of the rapamycin (mTOR) pathway harbors several established oncogenes and tumor suppressors. The same signaling molecules and growth factors, such as vascular endothelial growth factor (VEGF), contributing to cancer development and progression play a part in fibroblast proliferation, myofibroblast differentiation, and the production of extracellular matrix in IPF development as well. The expression of candidate genes acting upstream and downstream of mTORC1, as well as Vegf and low-density lipoprotein receptor related protein 1(Lrp1), was assessed using specific primers and quantitative polymerase chain reaction (qPCR) within the lung tissues of bleomycin (BLM)-induced IPF mouse models. Lung fibrosis was evaluated by histological examinations and hydroxyproline colorimetric assay. BLM-exposed mice developed lung injuries characterized by inflammatory manifestations and fibrotic features, along with higher levels of collagen and hydroxyproline. Gene expression analyses indicated a significant elevation of regulatory associated protein of mTOR (Raptor), Ras homolog enriched in brain (Rheb), S6 kinase 1, and Eukaryotic translation initiation factor 4E-binding protein 1 (4Ebp1), as well as a significant reduction of Vegfa, Tuberous sclerosis complex (Tsc2), and Lrp1; no changes were observed in the Tsc1 mRNA level. Our findings support the elevation of S6K1 and 4EBP1 in response to the TSC/RHEB/mTORC1 axis, which profoundly encourages the development and establishment of IPF and cancer. In addition, this study suggests a possible preventive role for VEGF-A and LRP1 in the development of IPF.
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Affiliation(s)
- Marjan Taherian
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran AND Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Paria Bayati
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran AND Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Ali Assarehzadegan
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran AND Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Mansoureh Soleimani
- The Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Hadi Poormoghim
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran AND Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Nazanin Mojtabavi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran AND Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
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Khoshmirsafa M, Assarehzadegan MA, Fallahpour M, Azimi M, Faraji F, Riahi T, Minaeian S, Fassahat D, Divsalar F, Abbasi MA. Expression Pattern of Inflammatory and Anti-Inflammatory Cytokines and Key Differential Transcription Factors in Peripheral Blood Mononuclear Cells of Iranian Coronavirus Disease 2019 Patients with Different Disease Severity. Viral Immunol 2022; 35:474-482. [PMID: 35997599 DOI: 10.1089/vim.2021.0224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The purpose of this research was to investigate the gene expression levels of inflammatory cytokines interferon (IFN)γ, tumor necrosis factor (TNF)α, interleukin (IL)1β, IL2, IL6, IL8, and IL17, and anti-inflammatory cytokines IL4, IL10, IFNα, and IFNβ, as well as relevant key transcription factors (TFs), including GATA3, PU1, NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells), IRF3 (interferon regulatory factor 3), BCL6 (B cell lymphoma 6 protein), FOXP3 (forkhead box P3), RORγt, and T-bet (T-box expressed in T cell) in Iranian patients with moderate and severe coronavirus disease 2019 (COVID-19). Fifty-six patients with COVID-19, and 25 healthy controls (HCs) age and sex matched were investigated. Based on the interim guidance of COVID-19 from the World Health Organization, the patients were classified into 33 moderate and 23 severe patients with COVID-19. The gene expression levels of cytokines and relevant TFs were quantified in peripheral blood mononuclear cells by quantitative real-time polymerase chain reaction (qRT-PCR). The gene expression levels of TFs RoRγ (RAR-related orphan nuclear receptor γ), NF-κB, and T-bet were significantly higher in patients with COVID-19 compared with HCs. Furthermore, the gene expression levels of cytokines, including IL2, IFNγ, IL6, TNFα, IL1β, IL8, and IL17, were significantly higher in patients with COVID-19 than HCs. However, there was a significant increase for IL6, TNFα, and IL17 in severe compared with moderate patients with COVID-19. Finally, The Spearman correlation analysis revealed a significantly positive correlation for IL6 and TNFα, IL6 and IL2, IL6, IFNγ, and IL2 and IFNγ. These data suggest that expression of IL6, TNFα, and IL17 as well as the synergic effect of elevated values of IL2 and IFNγ should be considered in the treatment and management of patients with severe COVID-19.
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Affiliation(s)
- Majid Khoshmirsafa
- Immunology Research Center, Institute of Immunology and Infectious Diseases; Iran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine; Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases; Iran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine; Iran University of Medical Sciences, Tehran, Iran
| | - Morteza Fallahpour
- Allergy and Clinical Immunology Department, Rasool e Akram Hospital; Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Azimi
- Immunology Research Center, Institute of Immunology and Infectious Diseases; Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Faraji
- Immunology Research Center, Institute of Immunology and Infectious Diseases; Iran University of Medical Sciences, Tehran, Iran
| | - Taghi Riahi
- Rasoul-e-Akram Hospital; Iran University of Medical Sciences, Tehran, Iran
| | - Sara Minaeian
- Antimicrobial Resistance Research Center, Institute of Immunology and Infectious Diseases; Iran University of Medical Sciences, Tehran, Iran
| | - Davood Fassahat
- Firoozabadi Clinical Research Development (FCRDU); Iran University of Medical Sciences, Tehran, Iran
| | - Farshad Divsalar
- Firoozabadi Clinical Research Development (FCRDU); Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Abbasi
- Firoozabadi Clinical Research Development (FCRDU); Iran University of Medical Sciences, Tehran, Iran
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Bayati P, Taherian M, Assarehzadegan MA, Soleimani M, Poormoghim H, Mojtabavi N. Induced Pluripotent Stem-cells Inhibit Experimental Bleomycin-induced Pulmonary Fibrosis through Regulation of the Insulin-like Growth Factor Signaling. Iran J Allergy Asthma Immunol 2022; 21:263-272. [PMID: 35822677 DOI: 10.18502/ijaai.v21i3.9800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 02/26/2022] [Indexed: 06/15/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is among the illnesses with a high mortality rate, yet no specific cause has been identified; as a result, successful treatment has not been achieved. Among the novel approaches for treating such hard-to-cure diseases are induced pluripotent stem cells (IPSCs). Some studies have shown these cells' potential in treating IPF. Therefore, we aimed to investigate the impact of IPSCs on insulin-like growth factor (Igf) signaling as a major contributor to IPF pathogenesis. C57BL/6 mice were intratracheally instilled with Bleomycin (BLM) or phosphate-buffered saline; the next day, half of the bleomycin group received IPSCs through tail vein injection. Hydroxyproline assay and histologic examinations have been performed to assess lung fibrosis. The gene expression was evaluated using specific primers for Igf-1, Igf-2, and insulin receptor substrate 1 (Irs-1) genes and SYBR green qPCR master mix. The data have been analyzed using the 2-ΔΔCT method. The mice that received Bleomycin showed histological characteristics of the fibrotic lung injury, which was significantly ameliorated after treatment with IPSCs comparable to the control group. Furthermore, gene expression analyses revealed that in the BLM group, Igf1, Igf2, and Irs1 genes were significantly upregulated, which were returned to near-normal levels after treatment with IPSCs. IPSCs could modulate the bleomycin-induced upregulation of Igf1, Igf2, and Irs1 genes. This finding reveals a new aspect of the therapeutic impact of the IPSCs on IPF, which could be translated into other fibrotic disorders.
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Affiliation(s)
- Paria Bayati
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran AND The Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Marjan Taherian
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran AND The Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Ali Assarehzadegan
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran AND The Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Mansoureh Soleimani
- Cellular and Molecular Research Center ,Iran University of Medical Sciences, Tehran, Iran.
| | - Hadi Poormoghim
- Scleroderma Study Group, Firuzgar Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Nazanin Mojtabavi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran AND The Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
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8
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Goudarzi G, Birgani YT, Assarehzadegan MA, Neisi A, Dastoorpoor M, Sorooshian A, Yazdani M. Prediction of airborne pollen concentrations by artificial neural network and their relationship with meteorological parameters and air pollutants. J Environ Health Sci Eng 2022; 20:251-264. [PMID: 35669831 PMCID: PMC9163240 DOI: 10.1007/s40201-021-00773-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 12/21/2021] [Indexed: 06/15/2023]
Abstract
After the early rainfall in the autumn of 2013, respiratory syndromes spread in the Khuzestan province of Iran with the most severity in Ahvaz. There have been recurring outbreaks in recent years. Considering that pollen-derived airborne allergens are regarded as key aeroallergens and the main cause of allergic rhinitis and asthma, this work aimed to forecast total pollen concentration in Ahvaz through an artificial neural network (ANN), followed by evaluating the pollen spatial distribution across the city and the association between pollen concentrations and environmental parameters. The utilized ANN in this work included an input layer with 13 parameters, a hidden layer of five neurons, and an output layer. Data were classified into training, validation, and testing sets. The ANN was implemented with 70% and 80% of data for training. The value of the correlation coefficient for the data validation of these two networks was 0.89 and 0.92, respectively. The results also indicated that despite the difference in the mean concentration of the pollens in various areas of Ahvaz, this difference was not statistically significant (P > 0.05). Furthermore, there was a negative correlation between the concentration of total pollen and relative humidity, precipitation, and air pressure. However, it had a positive correlation with temperature. Consequently, considering the logistical challenges of monitoring bioaerosols in the air, the ANN approach could predict total pollen concentrations. Therefore, in addition to measurements, the ANN technique can be a good tool to enable authorities to mitigate the impact of airborne pollen on people.
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Affiliation(s)
- Gholamreza Goudarzi
- Air Pollution and Respiratory Diseases (APRD) Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Environmental Technologies Research Center (ETRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Yaser Tahmasebi Birgani
- Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Environmental Technologies Research Center (ETRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Abdolkazem Neisi
- Air Pollution and Respiratory Diseases (APRD) Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Environmental Technologies Research Center (ETRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Dastoorpoor
- Department of Biostatistics and Epidemiology, Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Armin Sorooshian
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ USA
- Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ USA
| | - Mohsen Yazdani
- Department of Environmental Health Engineering, School of Public Health, Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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9
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Abdoli Sereshki H, Falak R, Assarehzadegan MA, Nabavi M, Shams MH, Ranjbar M. Immunochemical Characterization of Ligustrum Vulgare (Privet) Pollen Allergens: Study of Common Allergenic Plant in Iran. Iran J Allergy Asthma Immunol 2022; 21:55-64. [PMID: 35524378 DOI: 10.18502/ijaai.v21i1.8615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 09/22/2021] [Indexed: 06/14/2023]
Abstract
Ligustrum vulgare (Privet) pollen proteins are responsible for allergies in susceptible individuals in many regions of the world. This study investigated the immunochemical characterization of Privet pollen extract and the occurrence of skin prick test reactivity to Privet and other allergenic pollen grains in allergic rhinitis patients. All subjects experienced a skin prick test with twenty-two allergen extracts. sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) separated Privet pollen extract, IgE-immunoblotting, and specific ELISA procedures determined the allergenic profile on forty-five Privet allergic patients. A positive allergic reaction to L. vulgare pollen extract was observed in forty-five (31.4%) out of 145 patients. Ten resolved protein fractions were found on SDS-PAGE, ranging from 10 to 80 kDa. IgE-specific antibodies interacted with several allergenic protein bands from Privet-allergic patients in the immunoblotting assay. The most significant interaction was observed in proteins with molecular weights of approximately 15, 18, 43, and 66 kDa. Privet pollen is regarded as a potent allergen composed of IgE-binding constituents. Considering the high allergenicity of Privet pollen grains and since many countries are rich in this plant, identification and production of recombinant forms of common allergens in this species can be used for developing more efficient diagnostic, therapeutic, and preventive approaches.
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Affiliation(s)
- Haleh Abdoli Sereshki
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran AND Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Reza Falak
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran AND Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran AND Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Nabavi
- Department of Allergy and Clinical Immunology, Rasool-E-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Hossein Shams
- Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran.
| | - Maral Ranjbar
- Department of Medicine, Mc Master University, Hamilton, Canada.
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10
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Ranjbar M, Matloubi M, Sadegh S, Fallahpour M, Janani L, Assarehzadegan MA. IL1RL1 single nucleotide polymorphisms are associated with asthma in the Iranian population. Monaldi Arch Chest Dis 2021; 92. [PMID: 34964571 DOI: 10.4081/monaldi.2021.1697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/20/2021] [Indexed: 11/23/2022] Open
Abstract
Asthma is a chronic and multifactorial disease which is known to result from environmental and genetic factors. Interleukin 1 receptor-like 1 (IL1RL1) is a receptor, which promotes inflammatory responses after binding to its ligand IL-33. Several studies have shown that IL1RL1 gene polymorphisms are related to susceptibility or protection to asthma. The objective of this study was to evaluate the association between two IL1RL1 single nucleotide polymorphisms (rs10208293 and rs1041973) and the risk of asthma in the Iranian population. We performed genotyping of the IL1RL1 SNPs in 126 adult asthmatics and 300 healthy controls using TaqMan genotyping assay. Moreover, total serum IgE level, eosinophil count, and skin prick test were accomplished. The results indicated that the AA genotype of rs10208293 was positively associated with asthma susceptibility (p=0.028). We did not find any association between rs1041973 and asthma. Overall, our findings indicate that rs10208293 has a positive association with asthma in the Iranian population.
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Affiliation(s)
- Maral Ranjbar
- Department of Immunology, School of Medicine, Iran University of Medical Science, Tehran.
| | - Mojdeh Matloubi
- Department of Immunology, School of Medicine, Iran University of Medical Science, Tehran.
| | - Shaghayegh Sadegh
- Department of Immunology, School of Medicine, Iran University of Medical Science, Tehran.
| | - Morteza Fallahpour
- Department of Allergy, Rasool-e-Akram Hospital, Iran University of Medical Sciences, Tehran.
| | - Leila Janani
- Department of Biostatistics, School of Public Health, Iran University of Medical Science, Tehran.
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11
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Bolandi SM, Abdolmaleki Z, Assarehzadegan MA. Anti-angiogenic Properties of Bevacizumab Improve Respiratory System Inflammation in Ovalbumin-Induced Rat Model of Asthma. Inflammation 2021; 44:2463-2475. [PMID: 34420156 PMCID: PMC8380193 DOI: 10.1007/s10753-021-01516-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 06/16/2021] [Accepted: 07/07/2021] [Indexed: 02/07/2023]
Abstract
Studies on the bronchial vascular bed have revealed that the number of blood vessels in the lamina propria and under the mucosa of the lung tissue increases in patients suffering from mild to severe asthma. Thus, in this study, a new strategy was employed in respiratory system disorders by angiogenesis inhibition in an ovalbumin (OVA)-induced rat model of asthma. Twenty-one male Wistar albino rats, 8 weeks old, were randomly divided into three groups (n = 7 in each group), including (1) control group, (2) OVA-treated group, and (3) OVA + Bmab (bevacizumab drug). On days 1 and 8, 1 mg of OVA and aluminum hydroxide in sterile phosphate-buffered saline (PBS) were intraperitoneally injected to rats in groups 2 and 3. The control group was only subject to intraperitoneal injection of saline on days 1 and 8. One week after the last injection, the rats (groups 2 and 3) were exposed to OVA inhalation for 30 min at 2-day intervals from days 15 to 25. After sensitization and challenge with OVA, the OVA + Bmab group (group 3) were treated with a 5 mg/kg bevacizumab drug. Genes and protein expression of IL-1β and TNF-α and the expression of vascular endothelial growth factor (VEGF) protein were assessed by real-time PCR and immunohistochemistry respectively, in lung tissue. OVA exposure increased mucosal secretion and inflammatory cell populations in lung tissue and OVA-specific IgE level in serum. Also, VEGF and cytokine factor expression were significantly elevated in the OVA-induced asthma model (p ≤ 0.05). However, rats in OVA + Bmab group showed significantly a decrease in VEGF and IL-1β and TNF-α genes as well as proteins (p ≤ 0.05). The results showed that bevacizumab efficiently diminished bronchial inflammation via downregulation of VEGF expression, followed by inflammatory cells population and cytokines reduction. Angiogenesis inhibition in rats with induced asthma not only suppresses the inflammatory process through blocking VEGF expression but also inhibits the development of new blood vessels and progressing asthmatic attacks.
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Affiliation(s)
| | - Zohreh Abdolmaleki
- Department of Pharmacology, Karaj Branch, Islamic Azad University, Karaj, Iran.
- Department of Pharmacology, Karaj Branch, Islamic Azad University, Karaj, Iran.
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
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12
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Manian M, Sohrabi E, Eskandari N, Assarehzadegan MA, Ferns GA, Nourbakhsh M, Jazayeri MH, Nedaeinia R. An Integrated Bioinformatics Analysis of the Potential Regulatory Effects of miR-21 on T-cell Related Target Genes in Multiple Sclerosis. Avicenna J Med Biotechnol 2021; 13:149-165. [PMID: 34484645 PMCID: PMC8377402 DOI: 10.18502/ajmb.v13i3.6364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 01/16/2021] [Indexed: 11/24/2022] Open
Abstract
Background: Overexpression of miR-21 is a characteristic feature of patients with Multiple Sclerosis (MS) and is involved in gene regulation and the expression enhancement of pro-inflammatory factors including IFNγ and TNF-α following stimulation of T-cells via the T Cell Receptor (TCR). In this study, a novel integrated bioinformatics analysis was used to obtain a better understanding of the involvement of miR-21 in the development of MS, its protein biomarker signatures, RNA levels, and drug interactions through existing microarray and RNA-seq datasets of MS. Methods: In order to obtain data on the Differentially Expressed Genes (DEGs) in patients with MS and normal controls, the GEO2R web tool was used to analyze the Gene Expression Omnibus (GEO) datasets, and then Protein-Protein Interaction (PPI) networks of co-expressed DEGs were designed using STRING. A molecular network of miRNA-genes and drugs based on differentially expressed genes was created for T-cells of MS patients to identify the targets of miR-21, that may act as important regulators and potential biomarkers for early diagnosis, prognosis and, potential therapeutic targets for MS. Results: It found that seven genes (NRIP1, ARNT, KDM7A, S100A10, AK2, TGFβR2, and IL-6R) are regulated by drugs used in MS and miR-21. Finally, three overlapping genes (S100A10, NRIP1, KDM7A) were identified between miRNA-gene-drug network and nineteen genes as hub genes which can reflect the pathophysiology of MS. Conclusion: Our findings suggest that miR-21 and MS-related drugs can act synergistically to regulate several genes in the existing datasets, and miR-21 inhibitors have the potential to be used in MS treatment.
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Affiliation(s)
- Mostafa Manian
- Department of Immunology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ehsan Sohrabi
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nahid Eskandari
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad-Ali Assarehzadegan
- Department of Immunology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Gordon A Ferns
- Brighton and Sussex Medical School, Division of Medical Education, Falmer, Brighton BN1 9PH, Sussex, UK
| | - Mitra Nourbakhsh
- Department of Biochemistry and Nutrition, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mir Hadi Jazayeri
- Department of Immunology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Nedaeinia
- Pediatric Inherited Diseases Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
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13
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Abdoli Z, Assarehzadegan MA, Pipelzadeh MH, Iranparast S, Dashti Gerdabi N, Parsanahad M, Khodadadi A. Leukemia Inhibitory Factor Suppresses NKG2D mRNA Expression and Presentation on Human Natural Killer Cells. Iran J Allergy Asthma Immunol 2021; 20:98-105. [PMID: 33639636 DOI: 10.18502/ijaai.v20i1.5416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 12/22/2020] [Indexed: 11/24/2022]
Abstract
Leukemia inhibitory factor (LIF) is a multi-functional cytokine secreted from cells such as lymphocytes and hepatocytes. This study aimed to evaluate the effect of LIF on natural killer group 2 member D (NKG2D) receptors' expression and presentation on natural killer (NK) cells. For this purpose, peripheral blood mononuclear cells taken from 4 young male healthy blood donors were isolated and the effect of LIF (25 ng/mL) after 12, 24, and 48 hours of incubation, on NKG2D receptors expression and presentation was investigated using flow cytometry and real-time-polymerase chain reaction (PCR). All of the steps of the experiment were performed in duplicate. After periods of 12, 24, and 48 hours, LIF reduced both the expression and presentation of the NKG2D receptor on NK cells. The results suggest that this cytokine has a direct modulating activity on the body's immune response through suppression of NKG2D receptor expression and presentation on NK cells.
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Affiliation(s)
- Zahra Abdoli
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran AND Cancer Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Hassan Pipelzadeh
- Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran AND Department of Pharmacology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Sara Iranparast
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran AND Cancer Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran AND Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Nader Dashti Gerdabi
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Mehdi Parsanahad
- Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Ali Khodadadi
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran AND Cancer Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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14
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Shams MH, Assarehzadegan MA, Eskandari N, Masjedi M, Kheirandish F, Ghasemi R, Ganjalikhani Hakemi M, Varzi AM, Safari M, Sohrabi SM, Abdoli Sereshki H. Molecular and immunochemical characterization of Pop n 2: A new allergen of Populus nigra pollen. Clin Exp Allergy 2020; 51:1613-1623. [PMID: 33210791 DOI: 10.1111/cea.13789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/05/2020] [Revised: 10/05/2020] [Accepted: 10/28/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Pollen is one of the most common allergens that cause respiratory allergies worldwide. Pollen grains from poplars have been reported as important sources of pollinosis in many countries. OBJECTIVE The aim of the present study was to determine the molecular and immunochemical characterization of Pop n 2, a novel allergen of Populus nigra (P nigra) pollen extract. METHODS In this study, the pollen extract of P nigra was analysed by SDS-PAGE, and the allergenic profile was determined by IgE immunoblotting and specific ELISA using the sera of twenty allergic patients. The coding sequence of Pop n 2 was cloned and expressed in the Escherichia coli BL21 (DE3) using plasmid the pET-21b (+). Finally, the expressed recombinant Pop n 2 was purified by affinity chromatography. RESULTS Pop n 2 belongs to the profilin family with a molecular weight of approximately 14 kDa. Pop n 2 is the most IgE-reactive protein (about 65%) in the P nigra pollen extract. The cDNA sequencing results indicated an open reading frame 396 bp that encodes 131 amino acid residues. The results of ELISA and Immunoblotting assays showed that recombinant Pop n 2 could react with the IgE antibody in patients' sera, like its natural counterpart. CONCLUSION Our data revealed that Pop n 2 is a significant allergen in the P nigra pollen extract. Moreover, we observed that the recombinant Pop n 2 produced by the pET-21b (+) vector in the E colisystem acts as its natural counterpart.
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Affiliation(s)
- Mohammad-Hossein Shams
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Razi Herbal Medicines Research Center, Lorestan University of Medical sciences, Khorramabad, Iran
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Science, Tehran, Iran.,Immunology Department, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nahid Eskandari
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohsen Masjedi
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farnaz Kheirandish
- Razi Herbal Medicines Research Center, Lorestan University of Medical sciences, Khorramabad, Iran.,Department of Medical Parasitology and Mycology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Ramin Ghasemi
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Ali-Mohammad Varzi
- Department of Medical Immunology, School of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mojgan Safari
- Department of Pediatrics, School of Medicines, Hamedan University of Medical Science, Hamedan, Iran
| | - Seyyed-Mohsen Sohrabi
- Razi Herbal Medicines Research Center, Lorestan University of Medical sciences, Khorramabad, Iran
| | - Haleh Abdoli Sereshki
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Science, Tehran, Iran.,Immunology Department, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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15
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Hashempour-Baltork F, Hosseini SM, Assarehzadegan MA, Khosravi-Darani K, Hosseini H. Safety assays and nutritional values of mycoprotein produced by Fusarium venenatum IR372C from date waste as substrate. J Sci Food Agric 2020; 100:4433-4441. [PMID: 32406520 DOI: 10.1002/jsfa.10483] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/16/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Nutritional and environmental benefits of mycoprotein verify its beneficial role on the health of humankind in the next decades. Agro-industrial wastes can be used as cheap substrates to decrease the total cost of product. However, fungi may produce toxins or lead to allergic reactions in consumers. Therefore, the study of the safety and nutritional aspects of this product are very important. RESULTS Fusarium venenatum IR372C was cultured on date wastes and ammonium salts in submerge fermentation. The safety and nutritional issues of produced mycoprotein were investigated including allergy tests and analyses of toxins, as well as existence of toxin genes, and content of heavy metals, metals, amino acids and fatty acids. The results showed that fumonisin genes in F. venenatum IR372C remain without any gene expression during 1 week fermentation. Zearalenone and deoxynivalenol cannot be detected in the fermentation medium after 3 weeks. Prick tests on 30 volunteers demonstrated no sensitivities to mycoprotein. The content of lead was 658 μg kg-1 as the highest heavy metal followed by arsenic, cadmium and mercury at 161, 30.57 and 0 μg kg-1 , respectively. Produced mycoprotein includes essential amino acids at appropriate contents and the ratio of unsaturated to saturated fatty acid was nearly 2:1. Also, calcium, iron, magnesium and zinc were found in mycoprotein, which could have health beneficial impacts on consumers. CONCLUSION This study has provided information on safety aspects of mycoprotein production by F. venentaum IR372C from date wastes. However, further studies with focus on long-term clinical benefits of diets containing mycoprotein are necessary. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Fataneh Hashempour-Baltork
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyede Marzieh Hosseini
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Science, Tehran, Iran
| | - Kianoush Khosravi-Darani
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hedayat Hosseini
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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16
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Ranjbar M, Matloubi M, Assarehzadegan MA, Fallahpour M, Sadeghi F, Soleyman-Jahi S, Janani L. Association between Two Single Nucleotide Polymorphisms of Thymic Stromal Lymphopoietin (TSLP) Gene and Asthma in Iranian Population. Iran J Allergy Asthma Immunol 2020; 19:362-372. [PMID: 33463103 DOI: 10.18502/ijaai.v19i4.4111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/11/2020] [Indexed: 11/24/2022]
Abstract
Thymic stromal lymphopoietin (TSLP) is a cytokine similar to IL-7, which is released by airway epithelial cells in response to injury and inflammation. Current literature is contradictory about the association between different single nucleotide polymorphisms (SNPs) of the TSLP gene and asthma development in different countries. We aimed to evaluate the association between two common TSLP SNPs (rs2289276 and rs2289278) and the risk of asthma in the Iranian population. Genotyping of the TSLP gene was performed in 126 adult asthmatic patients and 300 controls; using the TaqMan genotyping assay. Moreover, total serum IgE level and eosinophil count were assessed. The results indicated that the TT genotype of rs2289276 was inversely associated with the risk of asthma (p=0.002). A similar inverse association was detected in subgroups of atopic (p=0.001) and non-atopic (p=0.005) asthma. Moreover, the TT genotype of this SNP was more prevalent in severe and late-onset categories of asthma. In subgroup analysis, a significant sex-specific association between rs2290276 and asthma was observed in women (p=0.004). The prevalence of rs2289276 was extremely low, which made it infeasible to perform any further analysis. Overall, our findings indicated that rs2290276 SNP of the TSLP gene has a protective phenotype against asthma development in the Iranian population.
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Affiliation(s)
- Maral Ranjbar
- Department of Immunology, School of Medicine, Iran University of Medical Science, Tehran, Iran.
| | - Mojdeh Matloubi
- Department of Immunology, School of Medicine, Iran University of Medical Science, Tehran, Iran.
| | - Mohammad-Ali Assarehzadegan
- Department of Immunology, School of Medicine, Iran University of Medical Science, Tehran, Iran AND Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Morteza Fallahpour
- Department of Allergy, Rasool-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran AND Firoozabadi Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Fatemeh Sadeghi
- Department of Immunology, School of Medicine, Iran University of Medical Science, Tehran, Iran.
| | - Saeed Soleyman-Jahi
- Digestive Diseases Research Core Center, Division of Gastroenterology, School of Medicine, Washington University, St. Louis, USA.
| | - Leila Janani
- Department of Biostatistics, School of Public Health, Iran University of Medical Science, Tehran, Iran.
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17
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Hosseini SA, Zahrooni N, Ahmadzadeh A, Ahmadiangali K, Assarehzadegan MA. The Effect of CoQ 10 Supplementation on Quality of Life in Women with Breast Cancer Undergoing Tamoxifen Therapy: A Double-Blind, Placebo-Controlled, Randomized Clinical Trial. Psychol Res Behav Manag 2020; 13:151-159. [PMID: 32110123 PMCID: PMC7039424 DOI: 10.2147/prbm.s241431] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 02/01/2020] [Indexed: 01/05/2023] Open
Abstract
Background Survival rates among breast cancer patients and the number of patients living with treatment side effects have improved, leading to increased focus on quality of life (QOL). The objective of this study was to determine the efficacy of CoQ10 on QOL scores among breast cancer patients in Iranian undergoing tamoxifen therapy. Methods Thirty breast cancer patients were randomized into two groups. The first group received 100 mg CoQ10, and the second group took fplacebo once a day for 8 weeks. QOL was evaluated by a standard QOL questionnaire and a specific questionnaire on QOL of breast cancer patients at baseline and the end of the study. Also, physical activity of patients was assessed with the IPAQ questionnaire and dietary intake determined by a 3-day dietary record. Results The data of 30 subjects were analyzed. According to QOL C30 data, CoQ10 led to a significant increase in physical functioning (P=0.029), emotional functioning (P=0.031), and cognitive functioning (P=0.023) compared to placebo. Symptom scales revealed a notable reduction in appetite loss in the first group (P=0.01). Global health status showed no significant changes in either study arm. On the QOL BR23, progress in functions and decline in symptoms were not statistically significant. Arm symptoms showed significant reduction (P=0.022) in patients that received placebo. Conclusion This trial indicates that CoQ10 supplementation has effects in ameliorating some dimensions of QOL in breast cancer patients. To generalize the results, larger and longer intervention studies are needed. Clinical Trial Registration IRCT2015042021874N1.
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Affiliation(s)
- Seyed Ahmad Hosseini
- Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nazanin Zahrooni
- Department of Nutrition, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ahmad Ahmadzadeh
- Thalassemia and Hemoglobinopathy Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Kambiz Ahmadiangali
- Biostatistics Division, Health School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Science, Tehran, Iran
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Atwan H, Assarehzadegan MA, Shekarabi M, Jazayeri SM, Barfi S, Shokouhi Shoormasti R, Chimeh N, Pouretemad HR, Tayebi B. Assessment of miR-181b-5p, miR-23a-3p, BCL-2, and IL-6 in Peripheral Blood Mononuclear Cells of Autistic Patients; Likelihood of Reliable Biomarkers. Iran J Allergy Asthma Immunol 2020; 19:74-83. [PMID: 32245323 DOI: 10.18502/ijaai.v19i1.2420] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 08/20/2019] [Indexed: 11/24/2022]
Abstract
Autism is a neurodevelopmental disorder that is recognized by stereotypic and repetitive behaviors after 2 years of old. Dysregulation of the immune system, especially inflammation which is mostly regulated by IL-6, imposes a deficit in CNS development. Along with this crucial biomarker, researchers have proposed BCL-2, micro RNA-23a-3p (miR-23a-3p), miR-181b-5p as other probable biomarkers involved in inflammation and apoptosis. The aim of the study was to evaluate the alteration in the expression of these biomarkers in a group of autism spectrum disorder (ASD) children. Peripheral blood mononuclear cells (PBMCs) were obtained from 37 autistic patients. After RNA extraction with precipitation method, the Syber green qReal-time Polymerase Chain Reaction (PCR) was performed in order to evaluate the possible alteration in the expression of IL-6, BCL-2, miR-181b-5p, and miR-23a-3p. The results were compared with healthy controls. IL-6 was significantly upregulated in ASD patients (p=0.003). On the other hand, miR-23a was upregulated and BCL-2 downregulated in ASD patients but the changes were not significant. In initial evaluations, expression changes of miR-181b-5p were not statistically significant. However, when Patients were divided into two groups of upregulated and downregulated, re-evaluation showed that both up- (p=0.005) and down-regulation (p=0.004) (i.e. changes regardless of the direction) of miR-181b were significant in autistic children. IL-6 and miR-181b-5p can have proper diagnostic values and are reliable biomarkers with high sensitivity and specificity. On the other hand, PBMC can be utilized for such studies and also evaluation of patients' condition instead of brain tissue as it is less accessible.
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Affiliation(s)
- Hossein Atwan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran AND Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Ali Assarehzadegan
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran AND Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Mehdi Shekarabi
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran AND Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Seyed Mohammad Jazayeri
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran AND Research Center for Clinical Virology, Tehran University of Medical Sciences, Tehran, Iran.
| | - Shahram Barfi
- Department of Virology, School of Public Health, International Campus, Tehran University of Medical Sciences Tehran, Iran.
| | | | - Narges Chimeh
- Behara Rehabilitation Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Hamid Reza Pouretemad
- Department of Psychological Medicine, Clinical Neurophysiology Section, Institute of Psychiatry, Shahid Beheshti University, Tehran, Iran.
| | - Behnoosh Tayebi
- Department of Regenerative Medicine, Royan Institute for Stem Cell Biology and Technology, Tehran, Iran.
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Haddadzadeh Shoushtari M, Mousavi SA, Raji H, Foroozan A, Borsi SH, Eidani E, Afrakhteh S, Assarehzadegan MA, Masoumi K, Sharif R. Bronchial Hyperresponsiveness Among Patients Presented to the University Emergency Departments in Ahvaz, Iran: Impact of Ecosystem on Human Life? Chest 2016. [DOI: 10.1016/j.chest.2016.08.1036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Mojiri Forushani H, Hemmati AA, Khodadadi A, Assarehzadegan MA, Rashno M. Protective Effect of Valsartan on Beleomycine-Induced Fibrosis. Jundishapur J Nat Pharm Prod 2016. [DOI: 10.17795/jjnpp-33973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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21
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Zarean M, Maraghi SH, Hajjaran H, Mohebali M, Feiz-Haddad MH, Assarehzadegan MA. Correlation between clinical responses with the drugsusceptibility of parasites in Iranian cutaneous leishmaniasis caused by Leishmania major. Trop Biomed 2016; 34:338-345. [PMID: 33593014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Reviews have shown increasing number of Iranian patients with cutaneous leishmaniasis (CL) who are unresponsive to pentavalent antimonial compounds such as meglumine antimoniate (Glucantime, MA). The present investigation aims to determine the correlation between clinical responses (healing, or non-healing) with susceptibility of Leishmania parasites to glucantime. Initially, in vitro susceptibility of Leishmania parasites was carried out on 93 isolates using macrophage models. Identification of these species was also performed by molecular methods including Nested-PCR and PCR-RFLP. The f indicated that total isolated were L. major. A significant association between the clinical outcome and the in vitro effective concentration 50% (EC50) values was observed. Leishmania derived from patients with non-healing lesions had EC50 values at least 3-fold higher than parasites isolated from lesions of healing patients. By molecular methods, patterns for both sensitive and resistant samples demonstrated restriction band which is related to L. major. The obtained findings in the present study demonstrated that MA-resistant L. major field isolates are now frequent in Iran. Such studies help to find strategies for rapidly diagnosing resistance in order to improve the clinical management of CL.
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Affiliation(s)
- M Zarean
- Department of Medical Parasitology and Mycology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Parasitology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - S H Maraghi
- Department of Medical Parasitology, School of Medicine, Institute of Health Research, Thalassemia and Hemoglobinopathy Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - H Hajjaran
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Mohebali
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M H Feiz-Haddad
- Department of Medical Parasitology, School of Medicine, Institute of Health Research, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - M A Assarehzadegan
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Khodadadi A, Abdoli Z, Boroujerdnia MG, Assarehzadegan MA, Ghasemi M, Hazrati SM, Gerdabi ND. The Effect of G2 Adjuvant on Gene Expression and Delivery of NKG2D Receptor on NK Cells in Peripheral Blood. Cancer Biother Radiopharm 2016; 31:119-24. [DOI: 10.1089/cbr.2015.1883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Ali Khodadadi
- Cancer, Petroleum and Environmental Pollutants Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Zahra Abdoli
- Cancer, Petroleum and Environmental Pollutants Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | | | - Mohammad Ghasemi
- Cancer, Petroleum and Environmental Pollutants Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Saleh Mohaghegh Hazrati
- School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Dr. Mohaghegh's Foundation Research on Industrial Biotechnology, Tehran, Iran
| | - Nader Dashti Gerdabi
- Cancer, Petroleum and Environmental Pollutants Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Dousti F, Assarehzadegan MA, Morakabati P, Khosravi GR, Akbari B. Molecular Cloning and Expression of Pro J 1: A New Allergen of Prosopis Juliflora Pollen. Iran J Allergy Asthma Immunol 2016; 15:122-131. [PMID: 27090365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Accepted: 04/04/2016] [Indexed: 06/05/2023]
Abstract
Pollen from mesquite (Prosopis juliflora) is one of the important causes of immediate hypersensitivity reactions in the arid and semi-arid regions of the world. The aim of present study is to produce and purify the recombinant form of allergenic Ole e 1-like protein from the pollen of this allergenic tree. Immunological and cross-inhibition assays were performed for the evaluation of IgE-binding capacity of purified recombinant protein. For molecular cloning, the coding sequence of the mesquite Ole e 1-like protein was inserted into pTZ57R/T vector and expressed in Escherichia coli using the vector pET-21b(+). After purification of the recombinant protein, its immunoreactivity was analysed by in vitro assays using sera from twenty one patients with an allergy to mesquite pollen. The purified recombinant allergen was a member of Ole e 1-like protein family and consisted of 150 amino acid residues, with a predicted molecular mass of 16.5 kDa and a calculated isoelectric point (pI) of 4.75. Twelve patients (57.14%) had significant specific IgE levels for this recombinant allergen. Immunodetection and inhibition assays indicated that the purified recombinant allergen might be the same as that in the crude extract. Herein, we introduce an important new allergen from P. juliflora pollen (Pro j 1), which is a member of the Ole e 1-like protein family and exhibits significant identity and similarity to other allergenic members of this family.
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Affiliation(s)
- Fatemeh Dousti
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad-Ali Assarehzadegan
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran AND Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Payam Morakabati
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Gholam Reza Khosravi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Bahareh Akbari
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Saadi S, Assarehzadegan MA, Pipelzadeh MH, Hadaddezfuli R. Induction of IL-12 from human monocytes after stimulation with Androctonus crassicauda scorpion venom. Toxicon 2015; 106:117-21. [PMID: 26415903 DOI: 10.1016/j.toxicon.2015.09.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [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: 07/24/2015] [Revised: 09/17/2015] [Accepted: 09/21/2015] [Indexed: 10/23/2022]
Abstract
The objective of this study was to evaluate the capacity of venom from Androctonus crassicauda to induce expression/production of interleukin (IL)-12 by isolated human monocytes. For this purpose, isolated human monocytes were exposed to different concentrations of the venom (0.16-20 μg/ml) for varying periods (6, 12, and 24 h). Apart from measures of venom cytotoxicity (i.e., lactase dehydrogenase activity [LDH] release), measures of IL-12 p40 mRNA (by Real-time PCR) of IL-12 release (by ELISA) were performed. The results showed that the venom produced significant concentration- and duration of incubation-dependent cytotoxicity. Expression of IL-12 p40 mRNA was significantly increased at all exposure timepoints relative to that in unexposed cells, but was maximal after 6 h of exposure. At that timepoint, the effect from a dose of 2.5 μg venom/ml provided the maximal increase among all doses tested. At the level of the protein itself, IL-12 production remained almost consistently elevated (vs. unexposed control values) across all exposure timepoints, with the greatest formation again occurring after 6 h of incubation at a dose of 2.5 μg venom/ml. The findings from this study demonstrated that venom from the A. crassicauda scorpion contained active constituents that could induce a sustained activation of human monocytes that was manifested, in part, as promotion of the expression/production of IL-12.
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Affiliation(s)
- Samahir Saadi
- Department of Biology, East Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad-Ali Assarehzadegan
- Department of Immunology, Ahvaz Jundishapur University of Medical Sciences, Iran; Department of Immunology, Iran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Hassan Pipelzadeh
- Department of Pharmacology and Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Reza Hadaddezfuli
- Department of Immunology, Ahvaz Jundishapur University of Medical Sciences, Iran
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Sepahi N, Khodadadi A, Assarehzadegan MA, Amini A, Zarinhadideh F, Ali-Sadeghi H. Molecular Cloning and Expression of a New Allergen of Acacia farnesiana (Aca f 2). Iran J Allergy Asthma Immunol 2015; 14:370-378. [PMID: 26547704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Accepted: 10/20/2015] [Indexed: 06/05/2023]
Abstract
Inhalation of pollens from different species of Acacia is a common cause of respiratory allergy in tropical areas of the world. Acacia farnesiana is commonly used as street trees in towns and ornamental shade trees in parks and gardens throughout arid and semi-arid regions of Asia. This study aimed to produce and purify the A. farnesiana pollen profilin (Aca f 2) and evaluate its nucleotide sequence homology with profilins of common allergenic plants to predict allergenic cross-reactivity. Thirty-nine patients who were allergic to Acacia pollens were included in the study. Cloning of Acacia profilin-coding sequence was performed by polymerase chain reaction using primers from Acacia pollen RNA. The cDNA of Acacia pollen profilin was then expressed in Escherichia coli using pET-21b(+) vector and purified by metal affinity chromatography. Immunoreactivity of the recombinant Acacia profilin (rAca f 2) was evaluated by specific ELISA, immunoblotting, and inhibition assays. The coding sequence of the Acacia profilin cDNA was recognized as a 399-bp open reading frame encoding 133 amino acid residues. Eighteen patients (18/39, 46.15%) had significant specific IgE levels against Aca f 2. Immunodetection and inhibition assays indicated that purified Aca f 2 might be the same as that in the crude extract. Aca f2, the first allergen from A. farnesiana pollen, was identified as belonging to the family of profilins. The amino acid sequence homology analysis showed high cross-reactivity between Aca f 2 and other profilins from botanically unrelated common allergenic plants.
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Affiliation(s)
- Najmeh Sepahi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Khodadadi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad-Ali Assarehzadegan
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Akram Amini
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Farnoosh Zarinhadideh
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hosein Ali-Sadeghi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Ali-Sadeghi H, Khodadadi A, Amini A, Assarehzadegan MA, Sepahi N, Zarinhadideh F. Pro j 2 is mesquite profilin: molecular characteristics and specific IgE binding activity. Asian Pac J Allergy Immunol 2015; 33:90-8. [PMID: 26141029 DOI: 10.12932/ap0507.33.2.2015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 08/06/2014] [Indexed: 11/05/2022]
Abstract
BACKGROUND Pollens from mesquite (Prosopis juliflora) are potent allergen responsible in causing immediate hypersensitivity reactions in susceptible people in tropical countries. OBJECTIVE This study aimed to clone, express and purify the mesquite pollen profilin (Pro j 2) as well as evaluating its nucleotide sequence homology in order to predict allergenic cross-reactivity with profilins of common allergenic plants. METHODS Immunoblotting assay and specific ELISA were applied to determine the immunoreactivity of sera from 35 patients who were allergic to mesquite pollen. The mesquite profilin-coding sequence was cloned into PTZ57R/T vector and amplified. The cDNA of mesquite pollen profilin was then expressed in Escherichia coli using pET-21b (+) vector and puri?ed by one-step Ni2+ a?nity chromatography. IgE binding capacity of the recombinant mesquite profiling (rPro j 2) was analyzed by specific ELISA, immunoblotting, and inhibition assays. RESULTS cDNA nucleotide sequencing revealed an open reading frame of 399bp encoding for 133 amino acids which belongs to the profilin family. Seventeen patients (17/35, 48.57%) had significant specific IgE level for rPro j 2. Immunodetection and inhibition assays indicated that puri?ed rPro j 2 might be similar as that in the crude extract. CONCLUSION Pro j 2, as a new allergen from mesquite pollen, was produced in E. coli with an IgE-reactivity similar to that of its natural counterpart. The amino acid sequences homology analysis of mesquite profilin and several profilin molecules from other plants showed high degree of cross-reactivity among plant-derived profilins from unrelated families.
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Affiliation(s)
- Hosein Ali-Sadeghi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Hadaddezfuli R, Khodadadi A, Assarehzadegan MA, Pipelzadeh MH, Saadi S. Hemiscorpius lepturus venom induces expression and production of interluckin-12 in human monocytes. Toxicon 2015; 100:27-31. [PMID: 25912944 DOI: 10.1016/j.toxicon.2015.04.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [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: 02/27/2015] [Revised: 04/07/2015] [Accepted: 04/21/2015] [Indexed: 10/23/2022]
Abstract
The objective of this study was to evaluate the capacity of the venom from Hemiscorpius lepturus to induce expression and production of interleukin-12 (IL-12) on isolated human monocytes. For this purpose, isolated human monocytes (250,000-300,000 cells/ml) were exposed to different concentrations of the venom (0.625, 1.25, 2.5, 5, 10 and 20 μg/ml) in 96-well plates for varying incubation periods (6, 12, and 24 h). The end point of assessment included LDH cytotoxicity assay, measurement of expression of IL-12,p40 mRNA by real-time PCR, and quantification of IL-12 release using sandwich ELISA technique. The results showed that this venom produced concentration- and time of incubation-dependent cytotoxicity. The level of enhancement of expression and production of IL-12 were found significantly higher with lowest concentration and after 6 h of incubation. The findings demonstrated that the venom from this scorpion contains active constituents which can direct the immune system to produce IL-12.
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Affiliation(s)
- Reza Hadaddezfuli
- Toxicology Research Center and Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Khodadadi
- Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Mohammad Hassan Pipelzadeh
- Toxicology Research Center, Ahvaz Jundishapur University and Pharmacology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Samahir Saadi
- Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Assarehzadegan MA, Khodadadi A, Amini A, Shakurnia AH, Marashi SS, Ali-Sadeghi H, Zarinhadideh F, Sepahi N. Immunochemical characterization of prosopis juliflora pollen allergens and evaluation of cross-reactivity pattern with the most allergenic pollens in tropical areas. Iran J Allergy Asthma Immunol 2015; 14:74-82. [PMID: 25530142] [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: 03/15/2014] [Revised: 05/12/2014] [Accepted: 06/16/2014] [Indexed: 06/04/2023]
Abstract
Allergy to Prosopis juliflora (mesquite) pollen is one of the common causes of respiratory allergy in tropical countries. Mesquite is widely used as street trees in towns and ornamental shade trees in parks and gardens throughout arid and semiarid regions of Iran. The inhalation of mesquite pollen and several species of Amaranthus/Chenopodiaceae family is the most important cause of allergic respiratory symptoms in Khuzestan province. This study was designed to evaluate IgE banding proteins of mesquite pollen extract and its IgE cross-reactivity with other allergenic plants. Twenty patients with allergic symptoms and positive skin prick tests (SPT) for mesquite pollen extract participated in the study. Crude pollen extract was prepared from local mesquite trees and used for the evaluation of allergenic profiles of P. juliflora pollen extract by Sodium dodecylsulfate polyacrylamide gel electrophoresis (SDS-PAGE) and IgE-immunoblotting. There were several protein bands in mesquite pollen extract using SDS-PAGE with the approximate range of molecular weight of 10-85 kDa. The most frequent IgE reactive bands among the patients' sera were approximately 20 and 66 kDa. However, there were other IgE reactive protein bands among the patients' sera with molecular weights of 10, 15, 35, 45, 55 and 85 kDa. Inhibition experiments revealed high IgE cross-reactivity between mesquite and acacia. There are several IgE-binding proteins in P. juliflora pollen extract. Results of this study indicate that proteins with a molecular weight of 10 to 85 kDa are the major allergens in P. juliflora pollen extract.
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Affiliation(s)
- Mohammad-Ali Assarehzadegan
- Cellular and Molecular Research Center of Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran and Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Ali Khodadadi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Ira.
| | - Akram Amini
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Abdol-Hosein Shakurnia
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran..
| | - Seyed Saeid Marashi
- Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Hosein Ali-Sadeghi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran..
| | - Farnoosh Zarinhadideh
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran..
| | - Najmeh Sepahi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Iranparast S, Assarehzadegan MA, Heike Y, Hossienzadeh M, Khodadadi A. Wilms' Tumor Gene (WT1) Expression Correlates with Vascular Epithelial Growth Factor (VEGF) in Newly Acute Leukemia Patients Undergoing Chemotherapy. Asian Pac J Cancer Prev 2014; 15:9217-23. [DOI: 10.7314/apjcp.2014.15.21.9217] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Rastin M, Mahmoudi M, Rezaee SA, Assarehzadegan MA, Tabasi N, Zamani S, Nosratabadi R, Haghmorad D, Sheikh A, Khazaee M, Panah HR. Distribution of Hepatitis C virus genotypes in city of Mashhad, North-east of Iran. Indian J Med Microbiol 2014; 32:53-6. [PMID: 24399389 DOI: 10.4103/0255-0857.124306] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE Six major hepatitis C virus genotypes have been characterised, which vary in their geographical distribution. The prevalence of hepatitis C virus (HCV) in an area is not constant, and depends on the changes in route of infection, which may change over time. In this study, the distribution of HCV genotypes in Mashhad, the capital of Razavi Khorasan province in north-east of Iran was investigated. Mashhad is a holy city of Shiate Moslems, which attracts more than 20 million tourists and pilgrims every year. MATERIALS AND METHODS Two hundred and seventy-eight HCV infected subjects (227 males and 51 females) were included in this study. HCV genotypes were analysed by type specific reverse transcriptase polymerase chain reaction (RT-PCR). RESULTS Genotype 3a was detected in 49.6%, 1a in 36.3%, 1b in 12.6% and 2a in 0.4%. Two HCV genotypes were detected in 1.1% cases; 1a +3a in 1%, 3a + 1b in 0.4%. Genotypes 2b and 3b were not detected in any samples. CONCLUSION We demonstrated that despite the previous reports on the frequency of HCV genotypes in Iran, 3a is the predominant genotype in Mashhad.
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Affiliation(s)
- M Rastin
- Immunology Research Center, BuAli Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Khanbashi S, Khodadadi A, Assarehzadegan MA, Pipelzadeh MH, Vazirianzadeh B, Hosseinzadeh M, Rahmani AH, Asmar A. Assessment of immunogenic characteristics of Hemiscorpius lepturus venom and its cross-reactivity with venoms from Androctonus crassicauda and Mesobuthus eupeus. J Immunotoxicol 2014; 12:217-22. [PMID: 24946724 DOI: 10.3109/1547691x.2014.927542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Hemiscorpius lepturus (H. lepturus), one of the most venomous scorpions in tropical and sub-tropical areas, belongs to the Hemiscorpiidae family. Studies of antibodies in sera against the protein component of the venom from this organism can be of great use for the development of engineered variants of proteins for eventual use in the diagnosis/treatment of, and prevention of reactions to, stings. In the present in vitro study, the proteins of H. lepturus venom, which could specifically activate the production of immunoglobulin G (IgG) in victims accidently exposed to the venom from this scorpion, were evaluated and their cross-reactivity with venoms from two other important scorpion species including Androctonus crassicauda and Mesobuthus eupeus assessed. H. lepturus venom was analyzed with respect to its protein composition and its antigenic properties against antibodies found in sera collected from victims exposed to the venom of this scorpion within a previous 2-month period. The cross-reactivity of the H. lepturus venom with those from A. crassicauda and M. eupeus was assessed using ELISA and immunoblotting. Electrophoretic analysis of the venom of H. lepturus revealed several protein bands with weights of 8-116 KDa. The most frequent IgG-reactive bands in the test sera had weights of 34, 50, and 116 kDa. A weak cross-reactivity H. lepturus of venom with venoms from A. crassicauda and M. eupeus was detected. The results of immunoblotting and ELISA experiments revealed that H. lepturus venom activated the host immune response, leading to the production of a high titer of antibodies. Clearly, a determination of the major immunogenic components of H. lepturus venom could be valuable for future studies and ultimately of great importance for the potential production of recombinant or hypo-venom variants of these proteins.
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Norouzirad R, Shakurnia AH, Assarehzadegan MA, Serajian A, Khabazkhoob M. Serum levels of anti-hepatitis B surface antibody among vaccinated population aged 1 to 18 years in ahvaz city southwest of iran. Hepat Mon 2014; 14:e13625. [PMID: 24497878 PMCID: PMC3909642 DOI: 10.5812/hepatmon.13625] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 09/08/2013] [Accepted: 11/17/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND The duration of protection following primary series vaccination against hepatitis B is unknown in children and adolescents. It has been shown that the level of anti-hepatitis B surface antigen antibodies (anti HBs Ab) declines over years after vaccination. OBJECTIVES The aim of this study was to estimate the long-term immunity against hepatitis B virus infection among children and adolescents who had received a complete hepatitis B vaccination series during infancy. PATIENTS AND METHODS In a cross-sectional study, the - anti-HBsAb levels of 840 vaccinated children and adolescents were determined by enzyme-linked immunosorbent assay. RESULTS Hepatitis B seroprotection rates (anti HBsAb ≥ 10 IU/L) among vaccinated children and adolescents aged 1 and 18 years were 90% and 48.9%, respectively. The declining trend of geometric mean titer of anti-HBsAb levels was observed as changed from 272.3 IU/L to 94.1 IU/L in 1 and 18-year-old population, respectively. A significant negative correlation was found between age and anti-HBsAb levels (r = - 0.220, P = 0.0001). CONCLUSIONS The results showed a declining trend in anti-HBsAb titers over the time after vaccination against hepatitis B virus in our region. Further studies are warranted to establish the need for a booster dose in cases that are at risk of hepatitis B virus infection.
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Affiliation(s)
- Reza Norouzirad
- Biochemistry Department, Faculty of Medicine, Dezful University of Medical Sciences, Dezful, IR Iran
| | - Abdol Hussein Shakurnia
- Health Research Institue, Infectious and Tropical Diseases Research Center, Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
- Corresponding Author: Abdol Hussein Shakurnia, Health Research Institue, Infectious and Tropical Diseases Research Center, Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Golestan Blvd, Ahvaz, IR Iran. Tel: +98-9163132602, Fax: +98-6113332036, E-mail:
| | - Mohammad-Ali Assarehzadegan
- Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Amirarsalan Serajian
- Health Education Research Group, Jahade Daneshgahi of Khouzestan, Ahvaz, IR Iran
| | - Mehdi Khabazkhoob
- Epidemiology Department, Faculty of Health, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
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Fereidouni M, Hossini RF, Azad FJ, Assarehzadegan MA, Varasteh A. Skin prick test reactivity to common aeroallergens among allergic rhinitis patients in Iran. Allergol Immunopathol (Madr) 2009; 37:73-9. [PMID: 19445863 DOI: 10.1016/s0301-0546(09)71108-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Allergic rhinitis is the most common allergic disease with negative impacts on patients' quality of life. The prevalence and pattern of sensitisation vary between different countries and populations. Identification of the most prevalent aeroallergens in each area has a very important role in diagnosis and treatment of allergic rhinitis. Iran is a fairly large country with different geo-climatic conditions and there are no data about the most prevalent aeroallergen in Mashhad City, which is the second largest city in Iran, with a semiarid climate. The aim of this study was to evaluate the prevalence of positive skin test to various common aeroallergens among allergic rhinitis patients in the city of Mashhad. MATERIALS AND METHODS Skin prick tests were performed with 27 common regional aeroallergens including grass, weed, tree, mite and mould in 311 patients with allergic rhinitis. RESULTS The overall rate of sensitisation to any allergen was 81 %. 76 % of patients were poly-sensitised and weed and grass were the most prevalent allergens (77 % and 62 % respectively). Salsola Kali and mould were the most and the least prevalent individual allergens (72.5 % and 6.5 % respectively). Mean total IgE in patients with positive skin prick test was significantly higher than in patients without any positive skin prick test (308 vs 128 IU/mL, P = 0.016). 97 % of atopic patients were sensitised to Salsola kali and or Fraxinus americana. CONCLUSIONS Our work showed the importance of weeds, especially the Amaranthaceae and Chenopodiaceae families. Diagnosis of pollen allergy can be simplified by using a combination of a few common aeroallergens.
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MESH Headings
- Adolescent
- Adult
- Air Pollutants/immunology
- Allergens/immunology
- Child
- Female
- Humans
- Immunoglobulin E/blood
- Iran/epidemiology
- Male
- Middle Aged
- Pollen/immunology
- Rhinitis, Allergic, Perennial/diagnosis
- Rhinitis, Allergic, Perennial/epidemiology
- Rhinitis, Allergic, Perennial/immunology
- Rhinitis, Allergic, Seasonal/diagnosis
- Rhinitis, Allergic, Seasonal/epidemiology
- Rhinitis, Allergic, Seasonal/immunology
- Skin Tests
- Young Adult
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Affiliation(s)
- Mohammad Fereidouni
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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