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Ziaei V, Ghassempour A, Davami F, Azarian B, Behdani M, Dabiri H, Habibi-Anbouhi M. Production and characterization of a camelid single domain anti-CD22 antibody conjugated to DM1. Mol Cell Biochem 2024; 479:579-590. [PMID: 37129769 DOI: 10.1007/s11010-023-04741-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: 03/01/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
Antibody drug conjugates (ADCs) with twelve FDA approved drugs, known as a novel category of anti-neoplastic treatment created to merge the monoclonal antibody specificity with cytotoxicity effect of chemotherapy. However, despite many undeniable advantages, ADCs face certain problems, including insufficient internalization after binding, complex structures and large size of full antibodies especially in targeting of solid tumors. Camelid single domain antibody fragments (Nanobody®) offer solutions to this challenge by providing nanoscale size, high solubility and excellent stability, recombinant expression in bacteria, in vivo enhanced tissue penetration, and conjugation advantages. Here, an anti-human CD22 Nanobody was expressed in E.coli cells and conjugated to Mertansine (DM1) as a cytotoxic payload. The anti-CD22 Nanobody was expressed and purified by Ni-NTA resin. DM1 conjugated anti-CD22 Nanobody was generated by conjugation of SMCC-DM1 to Nanobody lysine groups. The conjugates were characterized using SDS-PAGE and Capillary electrophoresis (CE-SDS), RP-HPLC, and MALDI-TOF mass spectrometry. Additionally, flow cytometry analysis and a competition ELISA were carried out for binding evaluation. Finally, cytotoxicity of conjugates on Raji and Jurkat cell lines was assessed. The drug-to-antibody ratio (DAR) of conjugates was calculated 2.04 using UV spectrometry. SDS-PAGE, CE-SDS, HPLC, and mass spectrometry confirmed conjugation of DM1 to the Nanobody. The obtained results showed the anti-CD22 Nanobody cytotoxicity was enhanced almost 80% by conjugation with DM1. The binding of conjugates was similar to the non-conjugated anti-CD22 Nanobody in flow cytometry experiments. Concludingly, this study successfully suggest that the DM1 conjugated anti-CD22 Nanobody can be used as a novel tumor specific drug delivery system.
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Affiliation(s)
- Vahab Ziaei
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Alireza Ghassempour
- Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Fatemeh Davami
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Bahareh Azarian
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Mahdi Behdani
- Biotechnology Research Center, Venom and Bio Therapeutics Molecules Laboratory, Pasteur Institute of Iran, Tehran, Iran
| | - Hamed Dabiri
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Dabiri H, Sadeghizadeh M, Ziaei V, Moghadasi Z, Maham A, Hajizadeh-Saffar E, Habibi-Anbouhi M. Development of an ostrich-derived single-chain variable fragment (scFv) against PTPRN extracellular domain. Sci Rep 2024; 14:3689. [PMID: 38355744 PMCID: PMC10866909 DOI: 10.1038/s41598-024-53386-5] [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: 10/15/2023] [Accepted: 01/31/2024] [Indexed: 02/16/2024] Open
Abstract
In type 1 diabetes, the immune system destroys pancreatic beta cells in an autoimmune condition. To overcome this disease, a specific monoclonal antibody that binds to pancreatic beta cells could be used for targeted immunotherapy. Protein tyrosine phosphatase receptor N (PTPRN) is one of the important surface antigen candidates. Due to its high sequence homology among mammals, so far, no single-chain monoclonal antibody has been produced against this receptor. In this study, we developed a novel single-chain variable fragment (scFv) against the PTPRN extracellular domain. To this aim, ostrich species was used as a host is far phylogenetically birds from mammals to construct a phage display library for the first time. An ostrich-derived scfv phage display library was prepared and biopanning steps were done to enrich and screen for isolating the best anti-PTPRN binders. An scFv with appropriate affinity and specificity to the PTPRN extracellular domain was selected and characterized by ELISA, western blotting, and flow cytometry. The anti-PTPRN scFv developed in this study could be introduced as an effective tool that can pave the way for the creation of antibody-based targeting systems in cooperation with the detection and therapy of type I diabetes.
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Affiliation(s)
- Hamed Dabiri
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Majid Sadeghizadeh
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Vahab Ziaei
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Zahra Moghadasi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Ali Maham
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ensiyeh Hajizadeh-Saffar
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
- Advanced Therapy Medicinal Product Technology Development Center (ATMP-TDC), Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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3
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Dabiri H, Habibi-Anbouhi M, Ziaei V, Moghadasi Z, Sadeghizadeh M, Hajizadeh-Saffar E. Candidate Biomarkers for Targeting in Type 1 Diabetes; A Bioinformatic Analysis of Pancreatic Cell Surface Antigens. Cell J 2024; 26:51-61. [PMID: 38351729 PMCID: PMC10864774 DOI: 10.22074/cellj.2023.1996297.1262] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 08/27/2023] [Accepted: 10/24/2023] [Indexed: 02/18/2024]
Abstract
OBJECTIVE Type 1 diabetes (T1Ds) is an autoimmune disease in which the immune system invades and destroys insulin-producing cells. Nevertheless, at the time of diagnosis, about 30-40% of pancreatic beta cells are healthy and capable of producing insulin. Bi-specific antibodies, chimeric antigen receptor regulatory T cells (CAR-Treg cells), and labeled antibodies could be a new emerging option for the treatment or diagnosis of type I diabetic patients. The aim of the study is to choose appropriate cell surface antigens in the pancreas tissue for generating an antibody for type I diabetic patients. MATERIALS AND METHODS In this bioinformatics study, we extracted pancreas-specific proteins from two large databases; the Human Protein Atlas (HPA) and Genotype-Tissue Expression (GTEx) Portal. Pancreatic-enriched genes were chosen and narrowed down by Protter software for the investigation of accessible extracellular domains. The immunohistochemistry (IHC) data of the protein atlas database were used to evaluate the protein expression of selected antigens. We explored the function of candidate antigens by using the GeneCards database to evaluate the potential dysfunction or activation/hyperactivation of antigens after antibody binding. RESULTS The results showed 429 genes are highly expressed in the pancreas tissue. Also, eighteen genes encoded plasma membrane proteins that have high expression in the microarray (GEO) dataset. Our results introduced four structural proteins, including NPHS1, KIRREL2, GP2, and CUZD1, among all seventeen candidate proteins. CONCLUSION The presented antigens can potentially be used to produce specific pancreatic antibodies that guide CARTreg, bi-specific, or labeling molecules to the pancreas for treatment, detection, or other molecular targeted therapy scopes for type I diabetes.
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Affiliation(s)
- Hamed Dabiri
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | | | - Vahab Ziaei
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Zahra Moghadasi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Majid Sadeghizadeh
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Ensiyeh Hajizadeh-Saffar
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
- Advanced Therapy Medicinal Product Technology Development Center (ATMP-TDC), Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Dabiri H, Safarzadeh Kozani P, Habibi Anbouhi M, Mirzaee Godarzee M, Haddadi MH, Basiri M, Ziaei V, Sadeghizadeh M, Hajizadeh Saffar E. Site-specific transgene integration in chimeric antigen receptor (CAR) T cell therapies. Biomark Res 2023; 11:67. [PMID: 37403182 DOI: 10.1186/s40364-023-00509-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/09/2023] [Indexed: 07/06/2023] Open
Abstract
Chimeric antigen receptor (CAR) T cells and natural killer (NK) cells are genetically engineered immune cells that can detect target antigens on the surface of target cells and eliminate them following adoptive transfer. Recent progress in CAR-based therapies has led to outstanding clinical success in certain patients with leukemias and lymphomas and offered therapeutic benefits to those resistant to conventional therapies. The universal approach to stable CAR transgene delivery into the T/NK cells is the use of viral particles. Such approaches mediate semi-random transgene insertions spanning the entire genome with a high preference for integration into sites surrounding highly-expressed genes and active loci. Regardless of the variable CAR expression level based on the integration site of the CAR transgene, foreign integrated DNA fragments may affect the neighboring endogenous genes and chromatin structure and potentially change a transduced T/NK cell behavior and function or even favor cellular transformation. In contrast, site-specific integration of CAR constructs using recent genome-editing technologies could overcome the limitations and disadvantages of universal random gene integration. Herein, we explain random and site-specific integration of CAR transgenes in CAR-T/NK cell therapies. Also, we tend to summarize the methods for site-specific integration as well as the clinical outcomes of certain gene disruptions or enhancements due to CAR transgene integration. Also, the advantages and limitations of using site-specific integration methods are discussed in this review. Ultimately, we will introduce the genomic safe harbor (GSH) standards and suggest some appropriate safety prospects for CAR integration in CAR-T/NK cell therapies.
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Affiliation(s)
- Hamed Dabiri
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Pooria Safarzadeh Kozani
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Mohadeseh Mirzaee Godarzee
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | | | - Mohsen Basiri
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Vahab Ziaei
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Majid Sadeghizadeh
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ensiyeh Hajizadeh Saffar
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
- Advanced Therapy Medicinal Product Technology Development Center (ATMP-TDC), Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
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5
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Dabiri H, Safarzadeh Kozani P, Habibi Anbouhi M, Mirzaee Godarzee M, Haddadi MH, Basiri M, Ziaei V, Sadeghizadeh M, Hajizadeh Saffar E. Site-specific transgene integration in chimeric antigen receptor (CAR) T cell therapies. Biomark Res 2023; 11:67. [DOI: https:/doi.org/10.1186/s40364-023-00509-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/09/2023] [Indexed: 09/15/2023] Open
Abstract
AbstractChimeric antigen receptor (CAR) T cells and natural killer (NK) cells are genetically engineered immune cells that can detect target antigens on the surface of target cells and eliminate them following adoptive transfer. Recent progress in CAR-based therapies has led to outstanding clinical success in certain patients with leukemias and lymphomas and offered therapeutic benefits to those resistant to conventional therapies. The universal approach to stable CAR transgene delivery into the T/NK cells is the use of viral particles. Such approaches mediate semi-random transgene insertions spanning the entire genome with a high preference for integration into sites surrounding highly-expressed genes and active loci. Regardless of the variable CAR expression level based on the integration site of the CAR transgene, foreign integrated DNA fragments may affect the neighboring endogenous genes and chromatin structure and potentially change a transduced T/NK cell behavior and function or even favor cellular transformation. In contrast, site-specific integration of CAR constructs using recent genome-editing technologies could overcome the limitations and disadvantages of universal random gene integration. Herein, we explain random and site-specific integration of CAR transgenes in CAR-T/NK cell therapies. Also, we tend to summarize the methods for site-specific integration as well as the clinical outcomes of certain gene disruptions or enhancements due to CAR transgene integration. Also, the advantages and limitations of using site-specific integration methods are discussed in this review. Ultimately, we will introduce the genomic safe harbor (GSH) standards and suggest some appropriate safety prospects for CAR integration in CAR-T/NK cell therapies.
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6
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Mirzaee Godarzee M, Mahmud Hussen B, Razmara E, Hakak‐Zargar B, Mohajerani F, Dabiri H, Fatih Rasul M, Ghazimoradi MH, Babashah S, Sadeghizadeh M. Strategies to overcome the side effects of chimeric antigen receptor T cell therapy. Ann N Y Acad Sci 2022; 1510:18-35. [DOI: 10.1111/nyas.14724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/05/2021] [Accepted: 10/22/2021] [Indexed: 11/26/2022]
Affiliation(s)
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy Hawler Medical University Erbil Iraq
| | - Ehsan Razmara
- Australian Regenerative Medicine Institute Monash University, Clayton, Victoria, Australia, 3800
| | | | - Fatemeh Mohajerani
- Department of Molecular Genetics, Faculty of Biological Sciences Tarbiat Modares University Tehran Iran
| | - Hamed Dabiri
- Department of Molecular Genetics, Faculty of Biological Sciences Tarbiat Modares University Tehran Iran
| | - Mohammed Fatih Rasul
- Department of Medical Analysis, Faculty of Sciences Tishk International University Erbil Iraq
| | | | - Sadegh Babashah
- Department of Molecular Genetics, Faculty of Biological Sciences Tarbiat Modares University Tehran Iran
| | - Majid Sadeghizadeh
- Department of Molecular Genetics, Faculty of Biological Sciences Tarbiat Modares University Tehran Iran
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7
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Dabiri H, Soltani BM, Dokanehiifard S, Jahanbakhshi A, Khaleghi M. Up-Regulation of Hsa-miR-11181 in Glioblastoma Multiforme as A Regulator of AKT2 and TGFBR1 Signalling. Cell J 2021; 23:421-428. [PMID: 34455717 PMCID: PMC8405078 DOI: 10.22074/cellj.2021.7734] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 01/27/2020] [Indexed: 11/16/2022]
Abstract
Objective MicroRNAs (miRNAs) are short non-coding RNAs that play a role in post-transcriptional regulation of gene
expression. Hsa-miR-11181 was originally introduced as a regulator of genes involved in some brain tumours. Due to the
high expression of Hsa-miR-11181 in limited glioblastoma brain tumours, in this study we intend to assess the expressions of
Hsa-miR-11181 and Has-miR11181-3p in brain tumour tissues and attribute new target genes to these miRNAs. Materials and Methods In this experimental study, total RNA from brain tissue samples was extracted for real-time
quantitative polymerase chain reaction (RT-qPCR) analysis after cDNA synthesis. In order to confirm a direct interaction
of Hsa-miR-11181 with two target genes, the 3ˊ UTR of AKT2 and transforming growth factor-beta receptor 1 (TGFBR1)
were cloned separately for assessment by the dual luciferase assay.
Results RT-qPCR analysis indicated that both Hsa-miR-11181-5p and Hsa-miR-11181-3p specifically up-regulated
in higher grades of glioma tumours versus other brain tumour types. Consistently, lower expression levels of AKT2
and TGFBR1 were detected in higher grade gliomas compared to other types of brain tumours, which was inverse to
the level of expression detected for the heparin-binding EGF-like growth factor (HBEGF) gene. The results of the dual
luciferase assay supported a direct interaction of Hsa-miR-11181 with the 3ˊ UTR sequences of the AKT2 and TGFBR1
genes.
Conclusion Overall, our data suggest that miR-1118 is a potential molecular biomarker for discrimination of glioma
brain tumours from other brain tumour types.
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Affiliation(s)
- Hamed Dabiri
- Molecular Genetics Department, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Bahram Mohammad Soltani
- Molecular Genetics Department, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Sadat Dokanehiifard
- Molecular Genetics Department, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amin Jahanbakhshi
- Stem Cell and Regenerative Medicine Research Centre, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Mehdi Khaleghi
- Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Science (TUMS), Tehran, Iran
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8
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Baghbanbashi S, Mousavi SMJ, Dabiri H, Hakemi-Vala M, Goudarzi H, Hamzehloo G, Amini S, Nasiri MJ. Rifampin resistance among individuals with extrapulmonary tuberculosis: 4 years of experience from a reference laboratory. New Microbes New Infect 2021; 40:100841. [PMID: 33664961 PMCID: PMC7897986 DOI: 10.1016/j.nmni.2021.100841] [Citation(s) in RCA: 4] [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: 10/27/2020] [Revised: 01/15/2021] [Accepted: 01/15/2021] [Indexed: 11/25/2022] Open
Abstract
Information is limited about the drug resistance patterns in extrapulmonary tuberculosis (EPTB) in Iran. This study aimed to determine the prevalence of EPTB and to investigate the drug-resistance pattern in Mycobacterium tuberculosis strains collected from extrapulmonary samples at the Tehran regional TB reference laboratory. Extrapulmonary specimens from individuals with suspected TB referred to the TB reference laboratories in five cities of Iran were collected. Both standard conventional methods (culture and direct smear microscopy) and Xpert MTB/RIF assay were used for the identification of mycobacteria. Drug susceptibility testing was done using Xpert MTB/RIF. The proportion method on Lowenstein–Jensen medium was performed for confirmation. Between 2016 and 2020, a total of 12 050 clinical specimens from individuals with suspected TB were collected, of which 10 380 (86%) were pulmonary specimens and 1670 (14%) were extrapulmonary. Of the extrapulmonary specimens, 85 (5.0%) were positive for M. tuberculosis, and the remaining 1585 (95.0%) samples were negative by standard methods. Of 85 M. tuberculosis isolates, drug susceptibility testing was performed for 32 isolates, of which 1 (3.1%, 95% CI 0.0%–9.4%) was rifampin resistant and 31 (96.9%, 95% CI 90.1%–100%) were pan-susceptible. The rifampin-resistant isolate was also resistant to isoniazid, so was assigned as a multidrug-resistant TB. Our study indicated the frequency of drug-resistance among EPTB in Iran. Establishing rapid diagnostic methods for detection of drug-resistance in EPTB, performing drug susceptibility testing for all EPTB cases to provide effective treatment, and continuous monitoring of drug resistance, are suggested for prevention and control of drug resistance in EPTB in Iran.
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Affiliation(s)
- S Baghbanbashi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S Mohammad J Mousavi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H Dabiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M Hakemi-Vala
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H Goudarzi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - G Hamzehloo
- Regional Tuberculosis Reference Laboratory, Tehran University of Medical Sciences, Tehran, Iran
| | - S Amini
- Regional Tuberculosis Reference Laboratory, Tehran University of Medical Sciences, Tehran, Iran
| | - M J Nasiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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9
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Mousavi S, Amini S, Mirsaeidi M, Dabiri H, Hamzehloo G, Goudarzi H, Nasiri M. Genotyping and drug susceptibility testing of Mycobacterium tuberculosis in Iran: a multi-centre study. New Microbes New Infect 2020; 37:100729. [PMID: 32774869 PMCID: PMC7404542 DOI: 10.1016/j.nmni.2020.100729] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 02/24/2020] [Accepted: 07/09/2020] [Indexed: 01/20/2023] Open
Abstract
Tuberculosis (TB) is a deadly infection and caused 1.4 million deaths in 2018. Assessing the geographic distribution of major lineages of Mycobacterium tuberculosis can contribute greatly to TB control. Mycobacterial interspersed repetitive unit variable number tandem repeat (MIRU-VNTR) typing is commonly used to differentiate various lineages of M. tuberculosis. A total of 2747 clinical specimens were collected consecutively from October 2018 through June 2019. Clinical isolates were identified as M. tuberculosis using standard biochemical tests. The standard 15-locus MIRU-VNTR typing was used for the genotyping of clinical isolates. Drug susceptibility testing was performed using the conventional proportion method. From the collected specimens, 100 were culture positive for M. tuberculosis. Using MIRU-VNTR, 99 different patterns were detected among the 100 isolates. They were distributed in one cluster comprising two strains and 98 unique patterns. Most of our isolates were similar to New-1 and Delhi/CAS strains. Of the M. tuberculosis isolates, 83 (83.0%) were pan-susceptible and 17 (17.0%) were resistant to at least one drug. Our study showed that MIRU-VNTR is a useful method for studying the genetic diversity of M. tuberculosis isolates in different regional settings and will help the health authorities to construct a preventive programme for TB.
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Affiliation(s)
- S.M.J. Mousavi
- Department of Microbiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S. Amini
- Regional Tuberculosis Reference Laboratory, Tehran University of Medical Science, Tehran, Iran
| | - M. Mirsaeidi
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - H. Dabiri
- Department of Microbiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - G. Hamzehloo
- Regional Tuberculosis Reference Laboratory, Tehran University of Medical Science, Tehran, Iran
| | - H. Goudarzi
- Department of Microbiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M.J. Nasiri
- Department of Microbiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Yousefi F, Shabaninejad Z, Vakili S, Derakhshan M, Movahedpour A, Dabiri H, Ghasemi Y, Mahjoubin-Tehran M, Nikoozadeh A, Savardashtaki A, Mirzaei H, Hamblin MR. TGF-β and WNT signaling pathways in cardiac fibrosis: non-coding RNAs come into focus. Cell Commun Signal 2020; 18:87. [PMID: 32517807 PMCID: PMC7281690 DOI: 10.1186/s12964-020-00555-4] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [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: 01/02/2020] [Accepted: 03/17/2020] [Indexed: 12/19/2022] Open
Abstract
Cardiac fibrosis describes the inappropriate proliferation of cardiac fibroblasts (CFs), leading to accumulation of extracellular matrix (ECM) proteins in the cardiac muscle, which is found in many pathophysiological heart conditions. A range of molecular components and cellular pathways, have been implicated in its pathogenesis. In this review, we focus on the TGF-β and WNT signaling pathways, and their mutual interaction, which have emerged as important factors involved in cardiac pathophysiology. The molecular and cellular processes involved in the initiation and progression of cardiac fibrosis are summarized. We focus on TGF-β and WNT signaling in cardiac fibrosis, ECM production, and myofibroblast transformation. Non-coding RNAs (ncRNAs) are one of the main players in the regulation of multiple pathways and cellular processes. MicroRNAs, long non-coding RNAs, and circular long non-coding RNAs can all interact with the TGF-β/WNT signaling axis to affect cardiac fibrosis. A better understanding of these processes may lead to new approaches for diagnosis and treatment of many cardiac conditions. Video Abstract.
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Affiliation(s)
- Fatemeh Yousefi
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Zahra Shabaninejad
- Department of Nanotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.,Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sina Vakili
- Biochemistry Department, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Derakhshan
- Department of Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ahmad Movahedpour
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.,Student research committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamed Dabiri
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.,Department of Stem Cell and Development Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Younes Ghasemi
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Mahjoubin-Tehran
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Azin Nikoozadeh
- Pathology Department, School of Medicine,Mashhad Univesity of Medical Sciences, Mashhad, Iran
| | - Amir Savardashtaki
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. .,Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, IR, Iran.
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, 40 Blossom Street, Boston, MA, 02114, USA. .,Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028, South Africa.
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11
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Haddadi MH, Negahdari B, Hajizadeh-Saffar E, Khosravi-Maharlooei M, Basiri M, Dabiri H, Baharvand H. Directed differentiation of regulatory T cells from naive T cells and prevention of their inflammation-mediated instability using small molecules. Clin Exp Immunol 2020; 201:205-221. [PMID: 32403163 DOI: 10.1111/cei.13453] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 05/05/2020] [Accepted: 05/05/2020] [Indexed: 12/29/2022] Open
Abstract
Regulatory T (Treg ) cell therapy is a promising approach for immune tolerance induction in autoimmunity conditions and cell/organ transplantations. Insufficient isolation yields and impurity during downstream processes and Treg instability after adoptive transfer in inflammatory conditions are major limitations to Treg therapy, and indicate the importance of seeking a valid, reliable method for de-novo generation of Tregs . In this research, we evaluated Treg -like cells obtained from different Treg differentiation protocols in terms of their yield, purity and activity. Differentiation was performed on naive CD4+ cells and a naive CD4+ /Treg co-culture by using three different protocols - ectopic expression of forkhead box protein P3 (E-FoxP3), soluble transforming growth factor β (S-TGF) and small molecules [N-acetyl puromycin and SR1555 (N-Ac/SR)]. The results showed that a high yield of a homogeneous population of Treg -like cells could be achieved by the N-Ac/SR method under a T helper type 17 (Th17)-polarizing condition, particularly interleukin (IL)-6 and TGF-β, when compared with the E-FoxP3 and S-TGF methods. Surprisingly, SR completely inhibited the differentiation of IL-17-producing cells and facilitated Treg generation in the inflammatory condition and had highly suppressive activity against T cell proliferation without Treg -specific demethylase region (TSDR) demethylation. For the first time, to our knowledge, we report the generation of efficient, pure Treg -like cells by using small molecules during in-vitro inflammatory conditions. Our results suggested that the N-Ac/SR method has several advantages for Treg generation when compared with the other methods, including a higher purity of Tregs , easier procedure, superior suppressive activity during the inflammatory condition and decreased cost.
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Affiliation(s)
- M-H Haddadi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - B Negahdari
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - E Hajizadeh-Saffar
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - M Khosravi-Maharlooei
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - M Basiri
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - H Dabiri
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - H Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.,Department of Developmental Biology, University of Science and Culture, Tehran, Iran
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12
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Arefzadeh S, Azimi T, Nasiri M, Nikpor Z, Dabiri H, Doustdar F, Goudarzi H, Allahyartorkaman M. High-resolution melt curve analysis for rapid detection of rifampicin resistance in Mycobacterium tuberculosis: a single-centre study in Iran. New Microbes New Infect 2020; 35:100665. [PMID: 32257224 PMCID: PMC7125345 DOI: 10.1016/j.nmni.2020.100665] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 03/05/2020] [Indexed: 11/29/2022] Open
Abstract
This study aimed to compare the diagnostic accuracy of high-resolution melting (HRM) analysis in comparison with Xpert MTB/RIF as well as conventional drug susceptibility testing (DST) for the detection of rifampicin (RIF) resistance in Mycobacterium tuberculosis in Iran. A comparative cross-sectional study was carried out from April 2017 to September 2018. A total of 80 culture-positive clinical samples selected during the study period were analysed for detection of RIF-resistant TB by conventional DST, Xpert MTB/RIF, and sequencing. Sensitivity and specificity of the HRM calculated according to DST was our reference standard test in this study. The overall sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of HRM assay were found to be 100%, 89.33%, 38.46%, and 100% respectively. The analysis demonstrated that the diagnostic accuracy of HRM tests is insufficient to replace Xpert MTB/RIF and conventional DST. HRM tests have the advantage of time to result and may be used in combination with culture. Further work to improve molecular tests would benefit from standardized reference standards and the methodology.
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Affiliation(s)
- S. Arefzadeh
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - T. Azimi
- Department of Pathobiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - M.J. Nasiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Z. Nikpor
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H. Dabiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - F. Doustdar
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H. Goudarzi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M. Allahyartorkaman
- Regional Tuberculosis Reference laboratory, Tehran University of Medical Sciences, Tehran, Iran
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13
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Nasiri M, Dabiri H, Fooladi A, Amini S, Hamzehloo G, Feizabadi M. High rates of nontuberculous mycobacteria isolation from patients with presumptive tuberculosis in Iran. New Microbes New Infect 2017; 21:12-17. [PMID: 29188063 PMCID: PMC5695646 DOI: 10.1016/j.nmni.2017.08.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 06/15/2017] [Revised: 08/30/2017] [Accepted: 08/31/2017] [Indexed: 11/19/2022] Open
Abstract
Nontuberculous mycobacteria (NTM) can cause disease which can be indistinguishable from tuberculosis (TB), posing a diagnostic and therapeutic challenge, particularly in low- and middle-income settings. We aimed to investigate the mycobacterial agents associated with presumptive clinical pulmonary TB in Iran. A total of 410 mycobacterial isolates, obtained between March 2014 and January 2016, from 7600 clinical samples taken from consecutive cases of presumptive diagnosis of TB were identified. Phenotypic and molecular tests were used to identify the isolated organisms to the species level. Single-locus and multilocus sequence analysis based on 16S rRNA, rpoB, hsp65 and ITS locus were used to confirm the results. Of 410 consecutive strains isolated from suspected TB subjects, 62 isolates (15.1%) were identified as NTM. Patients with positive NTM cultures met American Thoracic Society diagnostic criteria for NTM disease. Mycobacterium simiae was the most frequently encountered (38.7%), followed by Mycobacterium fortuitum (19.3%), M. kansasii (17.7%) and M. avium complex (8.0%). Isolation of NTM, including M. simiae, from suspected TB cases is a serious public health problem and merits further attention by health authorities, physicians and microbiologists.
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Affiliation(s)
- M.J. Nasiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Iran
| | - H. Dabiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Iran
| | - A.A.I. Fooladi
- Applied Microbiology Research Center, Baqiyatallah University of Medical Sciences, Iran
| | - S. Amini
- Regional Tuberculosis Reference Laboratory, Iran
| | - G. Hamzehloo
- Regional Tuberculosis Reference Laboratory, Iran
| | - M.M. Feizabadi
- Department of Microbiology, School of Medicine, Iran
- Thoracic Research Center, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Corresponding author: M. M. Feizabadi, Department of Microbiology, Tehran University of Medical Sciences, School of Medicine, Tehran, IranDepartment of MicrobiologyTehran University of Medical SciencesSchool of MedicineTehranIran
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14
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Dezfulian A, Salehian MT, Amini V, Dabiri H, Azimi Rad M, Aslani MM, Alebouyeh M, Fazel I, Zali MR. Bacteriological study of diabetic foot infections in an Iranian hospital. Iran Red Crescent Med J 2011; 13:590-1. [PMID: 22737532 PMCID: PMC3371997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/12/2010] [Accepted: 04/16/2011] [Indexed: 11/04/2022]
Affiliation(s)
- A Dezfulian
- Research Center for Foodborne and Diarrheal Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M T Salehian
- Department of General Vascular Surgery, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - V Amini
- Department of General Vascular Surgery, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H Dabiri
- Research Center for Foodborne and Diarrheal Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Department of Medical Bacteriology, Shahid Beheshti University of Med-ical Sciences, Tehran, Iran
| | - M Azimi Rad
- Research Center for Foodborne and Diarrheal Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M M Aslani
- Research Center for Foodborne and Diarrheal Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Department of Microbiology, Pasture Institute of Iran, Tehran, Iran,Correspondence: Mohammad Mehdi Aslani, PhD, Department of Microbiology, Pasture Institute of Iran, Tehran, Iran. Tel.: +98-21-66405535, Fax: +98-21-66405535, E-mail:
| | - M Alebouyeh
- Research Center for Foodborne and Diarrheal Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - I Fazel
- Department of General Vascular Surgery, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M R Zali
- Research Center for Foodborne and Diarrheal Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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15
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Dezfulian A, Salehian MT, Amini V, Dabiri H, Azimirad M, Aslani MM, Zali MR, Fazel I. Catalase-negative Staphylococcus aureus isolated from a diabetic foot ulcer. Iran J Microbiol 2010; 2:165-7. [PMID: 22347567 PMCID: PMC3279781] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We report a catalase-negative Staphylococcus aureus isolated from a 56-year-old male diabetic patient with foot ulcer who attended our surgery ward. Species identification was confirmed by Gram staining, standard biochemical tests and PCR amplification of the nuc and fem genes. Antibiotic susceptibility showed that the strain was sensitive to imepenem, chloramphenicol, amoxicillin, vancomycin and resistant to oxacillin, penicillin, ceftriaxone, erythromycin, clindamycin, and amikacin. Clinicians and microbiologists must be encouraged to identify and report these atypical strains and the infections associated with them in order to establish their role in pathogenesis.
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Affiliation(s)
- A Dezfulian
- Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - MT Salehian
- Department of General Vascular Surgery, Taleghani Hospital, Tehran, Iran
| | - V Amini
- Department of General Vascular Surgery, Taleghani Hospital, Tehran, Iran
| | - H Dabiri
- Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M Azimirad
- Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - MM Aslani
- Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Department of Microbiology, Pasteur Institute of Iran,Corresponding author: Mohammad Mehdi Aslani Ph.D. Address: Department of Microbiology, Pasture Institute of Iran, Tehran, Iran. Tel: +98 -2166405535. Fax: +98-2166465132. E-mail:
| | - MR Zali
- Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - I Fazel
- Department of General Vascular Surgery, Taleghani Hospital, Tehran, Iran
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16
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Nejad MR, Mojarad EN, Dabiri H, Zali M. Blastocystis hominis infection among patients with and without gastrointestinal disorders. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.2150] [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: 10/19/2022] Open
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17
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Baghai K, Shokrzadeh L, Jafari F, Dabiri H, Bolfion M, Sahebekhtiyari N, Mirsattari D, Zojaji H, Zali M. Investigation of cagI and cagII in H. pylori Isolated from Dyspepsia Patients in Iran. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.578] [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: 11/29/2022] Open
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18
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Hamidian M, Mirsalehian A, Akbari-Nakhjavani F, Kazemi B, Jafari F, Dabiri H, Zali M. Detection of gyrA Mutations in Fluoroquinolone resistant E. coli Isolated from Urinary Tract Infections in Tehran, Iran. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.275] [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: 11/16/2022] Open
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19
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Emaneini M, Aligholi M, Hashemi FB, Jabalameli F, Shahsavan S, Dabiri H, Jonaidi N, Dahi K. Isolation of vancomycin-resistant Staphylococcus aureus in a teaching hospital in Tehran. J Hosp Infect 2007; 66:92-3. [PMID: 17428579 DOI: 10.1016/j.jhin.2007.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2007] [Accepted: 03/01/2007] [Indexed: 10/23/2022]
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