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Solaghani TH, Nazari R, Mosavari N, Tadayon K, Zolfaghari MR. Isolation and identification of nontuberculous mycobacteria from raw milk and traditional cheese based on the 16S rRNA and hsp65 genes, Tehran, Iran. Folia Microbiol (Praha) 2024; 69:81-89. [PMID: 37507582 DOI: 10.1007/s12223-023-01073-9] [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: 01/03/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023]
Abstract
As an important source of human food, milk can be a carrier of human pathogenic bacteria, including tuberculous and nontuberculous mycobacteria (NTM), in its raw and unpasteurized state. In this research, 175 raw milk samples and 175 traditional cheese samples were collected from traditional dairy stores in 22 regions of Tehran in a 9- month period from August 2019 to May 2020. Samples were prepared and transferred to a specialized laboratory, where they were inoculated in Lowenstein-Jensen (LJ) medium containing glycerol or sodium pyruvate, as well as Herrold's egg-yolk with and without Mycobactin J. to determine the sample's identity of samples. The recommended 16S rRNA (1436 bp) and hsp65 (644 bp) gene fragments from the positive isolates identified in Ziehl-Neelsen (Z-N) staining were amplified and sequenced using PCR and compared with the sequences of the gene fragments of reference strains available in the global GenBank database. No mycobacterial species were isolated from traditional cheese samples in microbial culture. In case of raw milk samples, a total of four bacteria were collected, all of which were found in the genetic differential testing to be NTM, including n = 1 Mycobacterium heraklionense, n = 2 Mycolicibacterium fortuitum, and n = 1 Mycobacterium thermoresistibile. The analysis of the results obtained by isolate sequencing using the 16S rRNA gene showed higher discriminatory power and percentage similarities in the identification of the isolates than the hsp65 gene.
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Affiliation(s)
| | - Razieh Nazari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran.
| | - Nader Mosavari
- Bovine Tuberculosis Reference Laboratory, Agricultural Research, Education and Extension Organization (AREEO), Razi Vaccine and Serum Research Institute, Karaj, Iran.
| | - Keyvan Tadayon
- Agricultural Research Education and Extension Organization (AREEO), Tuberculin and Mallein Research & Production Department, Razi Vaccine and Serum Research Institute, Bovine Tuberculosis Laboratory, Karaj, Iran
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
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Shaemi F, Nejati M, Sarrafnia H, Mahabady MK, Tamtaji Z, Taheri AT, Hamblin MR, Zolfaghari MR, Heydari A, Mirzaei H. Expression of selected long non-coding RNAs in gastric cancer cells treated with coumarin: Possible mechanisms for anti-cancer activity. Pathol Res Pract 2023; 252:154914. [PMID: 37992506 DOI: 10.1016/j.prp.2023.154914] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/24/2023]
Abstract
Long non-coding RNAs (lncRNAs) can be utilized as prognostic indicators of gastric cancer since they can affect several cancer-related processes. Coumarin is a natural product with some useful anti-cancer properties. Here, we measured the expression of selected lncRNAs (RuPAR, SNHG6, CASC11, and their targets, miR-340-5p, p21, E-cadherin, and CDK1) in AGS gastric cancer cells treated with coumarin. MTT test has been utilized for assessing the AGS cells' cell viability after exposure to coumarin. The expression of the lncRNAs (RuPAR, SNHG6, and CASC11) and miR-340-5p was evaluated via qRT-PCR. Western blot analysis has been utilized to determine changes in p21, E-cadherin, and CDK1 expression. Coumarin decreased AGS viability in a dose-dependent manner. The coumarin treated cells had lower levels of the mRNAs known to be targets of lncRNAs SNHG6 and CASC11 compared to control. Additionally, the coumarin group had increased levels of lncRNA RuPAR expression when compared with the control group. Some lncRNA targets, including p21, E-cadherin, and CDK1, showed lower expression in the coumarin group compared to the control by Western blotting. Coumarin could be a promising pharmacological candidate to be included in gastric cancer treatment regimens because it modulates lncRNAs and their targets.
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Affiliation(s)
- Fatemeh Shaemi
- Department of Genetics, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | - Majid Nejati
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Haleh Sarrafnia
- Faculty of Biological Sciences, Islamic Azad University, Tehran-North Branch, Tehran, Iran
| | - Mahmood Khaksary Mahabady
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Zeinab Tamtaji
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Abdolkarim Talebi Taheri
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein 2028, South Africa
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran.
| | - Azhdar Heydari
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran; Department of Physiology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran; Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Tabibi M, Aghaei S, Amoozegar MA, Nazari R, Zolfaghari MR. Characterization of green synthesized selenium nanoparticles (SeNPs) in two different indigenous halophilic bacteria. BMC Chem 2023; 17:115. [PMID: 37716996 PMCID: PMC10504756 DOI: 10.1186/s13065-023-01034-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 09/07/2023] [Indexed: 09/18/2023] Open
Abstract
BACKGROUND In the biological method, using nonpathogenic and extremophile bacteria systems are not only safe and highly efficient but also a trump card for synthesizing nanoparticles. Halomonas elongata QW6 IBRC-M 10,214 (He10214) and Salinicoccus iranensis IBRC-M 10,198 (Si10198), indigenous halophilic bacteria, can be used for synthesizing selenium nanoparticles (SeNPs). METHODS SeNP biosynthesis was optimized in two halophilic bacteria and characterized by UV-Vis, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray powder diffraction (XRD), zeta potential, and energy dispersive X-ray (EDX). RESULTS Optimized conditions for synthesizing SeNPs was at 300 °C at 150 rpm for 72 h and 6 mM or 8 mM concentration of Na2SeO3. UV-Vis indicated a sharp absorption peak at 294 nm. Spherical-shaped nanoparticles by a diameter of 30-100 nm were observed in FESEM and TEM microscopy images. The produced SeNPs were identified by a peak in FTIR spectra. In XRD analysis, the highest peak diffraction had a relationship with SeNPs. The zeta potential analysis showed SeNP production, and elemental selenium was confirmed by EDX. CONCLUSIONS Halophilic bacteria, owing to easy manipulation to create optimization conditions and high resistance, could serve as appropriate organisms for the bioproduction of nanoparticles. The biological method, due to effectiveness, flexibility, biocompatibility, and low cost, could be used for the synthesis of reproducible and stable nanoparticles.
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Affiliation(s)
- Maryam Tabibi
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, 3749113191 Iran
| | - Soheil Aghaei
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, 3749113191 Iran
| | - Mohammad Ali Amoozegar
- Extremophiles Lab., Dept. of Microbiology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Razieh Nazari
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, 3749113191 Iran
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
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Najafpour R, Zolfaghari MR, Mosavari N, Nazari R, Tadayon K. More insights about genomic population structure of Mycobacterium avium subspecies paratuberculosis (Map) from multiple hosts in west and central provinces of Iran using a boosted genotyping approach. Comp Immunol Microbiol Infect Dis 2023; 100:101912. [PMID: 37487314 DOI: 10.1016/j.cimid.2022.101912] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/05/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
Abstract
To investigate the population genetic of Mycobacterium avium subsp. paratuberculosis (Map) in Iran, Mycobacterial Interspersed Repetitive Units (MIRUs) and Multi Locus Short Sequence Repeat (MLSSR) system were employed. Numerous genotypes by MIRU (N = 11) and MLSSR (N = 9) methods bearing discriminatory indices of 0.90 and 0.79 respectively, were obtained. Browsing the INRA-Nouzilly list (http://mac-inmv.tours.inra.fr/) detected 3 of the found patterns as new types. Some loci either MIRU-VNTR or SSR proved more polymorphic and therefore are recommended to be applied in priority for strain typing in the Iranian environment. While identical MIRU-VNTR or MLSSR patterns were detected among different conspecifics and geographical locations, dissimilar types were also observed at the same farms an indication of coexistence of Map strains within one herd. We suggest extension of the genotyping work described here to include more endogenous isolates in order to better analysis of transmission and virulence in epidemiology and control of paratuberculosis.
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Affiliation(s)
- Reza Najafpour
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran.
| | - Nader Mosavari
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bovine Tuberculosis Laboratory, Tuberculin and Mallein Research & Production Department, Karaj, Iran
| | - Razieh Nazari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | - Keyvan Tadayon
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Veterinary, Aerobic Bacteria Vaccines Department, Karaj, Iran.
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Babazadeh SM, Zolfaghari MR, Zargar M, Baesi K, Hosseini SY, Ghaemi A. Interleukin-24-mediated antitumor effects against human glioblastoma via upregulation of P38 MAPK and endogenous TRAIL-induced apoptosis and LC3-II activation-dependent autophagy. BMC Cancer 2023; 23:519. [PMID: 37280571 DOI: 10.1186/s12885-023-11021-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/29/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Melanoma differentiation-associated gene 7 (Mda-7) encodes IL-24, which can induce apoptosis in cancer cells. A novel gene therapy approach to treat deadly brain tumors, recombinant mda-7 adenovirus (Ad/mda-7) efficiently kills glioma cells. In this study, we investigated the factors affecting cell survival and apoptosis and autophagy mechanisms that destroy glioma cells by Ad/IL-24. METHODS Human glioblastoma U87 cell line was exposed to a multiplicity of infections of Ad/IL-24. Antitumor activities of Ad/IL-24 were assessed by cell proliferation (MTT) and lactate dehydrogenase (LDH) release analysis. Using flow cytometry, cell cycle arrest and apoptosis were investigated. Using the ELISA method, the tumor necrosis factor (TNF-α) level was determined as an apoptosis-promoting factor and Survivin level as an anti-apoptotic factor. The expression levels of TNF-related apoptosis inducing ligand(TRAIL) and P38 MAPK genes were assessed by the Reverse transcription-quantitative polymerase chain reaction(RT‑qPCR) method. The expression levels of caspase-3 and protein light chain 3-II (LC3-II) proteins were analyzed by flow cytometry as intervening factors in the processes of apoptosis and autophagy in the cell death signaling pathway, respectively. RESULTS The present findings demonstrated that transduction of IL-24 inhibited cell proliferation and induced cell cycle arrest and cell apoptosis in glioblastoma. Compared with cells of the control groups, Ad/IL24-infected U87 cells exhibited significantly increased elevated caspase-3, and TNF-α levels, while the survivin expression was decreased. TRAIL was shown to be upregulated in tumor cells after Ad/IL-24 infection and studies of the apoptotic cascade regulators indicate that Ad/IL-24 could further enhance the activation of apoptosis through the TNF family of death receptors. In the current study, we demonstrate that P38 MAPK is significantly activated by IL-24 expression. In addition, the overexpression of mda-7/IL-24 in GBM cells induced autophagy, which was triggered by the upregulation of LC3-II. CONCLUSIONS Our study demonstrates the antitumor effect of IL-24 on glioblastoma and may be a promising therapeutic approach for GBM cancer gene therapy.
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Affiliation(s)
- Seyedeh Maliheh Babazadeh
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran.
| | - Mohsen Zargar
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | - Kazem Baesi
- Hepatitis and AIDS Department, Pasteur Institute of Iran, Tehran, Iran
| | - Sayed Younes Hosseini
- Bacteriology and Virology Department, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Ghaemi
- Department of Influenza and other Respiratory Viruses, Pasteur Institute of Iran, Tehran, Iran.
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Shakib P, Saki R, Marzban A, Goudarzi G, Ghotekar S, Cheraghipour K, Zolfaghari MR. Antibacterial Effects of Nanocomposites on Efflux Pump Expression and Biofilm Production in Pseudomonas aeruginosa: A Systematic Review. Curr Pharm Biotechnol 2023:CPB-EPUB-131324. [PMID: 37132134 DOI: 10.2174/1389201024666230428121122] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 02/06/2023] [Accepted: 03/03/2023] [Indexed: 05/04/2023]
Abstract
BACKGROUND Pseudomonas aeruginosa is an opportunistic gram-negative pathogen with multiple mechanisms of resistance to antibiotics. This systematic review aimed to study the antibacterial effects of nanocomposites on efflux pump expression and biofilm production in P. aeruginosa. METHODS The search was conducted from January 1, 2000, to May 30, 2022, using terms such as (P. aeruginosa) AND (biofilm) AND (antibiofilm activity) AND (anti-Efflux Pump Expression activity) AND (nanoparticles) AND (Efflux Pump Expression) AND (Solid Lipid NPS) AND (Nano Lipid Carriers). Many databases are included in the collection, including ScienceDirect, PubMed, Scopus, Ovid, and Cochrane. RESULTS A list of selected articles was retrieved by using the relevant keywords. A total of 323 published papers were selected and imported into the Endnote library (version X9). Following the removal of duplicates, 240 were selected for further processing. Based on the titles and abstracts of the articles, 54 irrelevant studies were excluded. Among the remaining 186 articles, 54 were included in the analysis because their full texts were accessible. Ultimately, 74 studies were selected based on inclusion/exclusion criteria. CONCLUSION Recent studies regarding the impact of NPs on drug resistance in P. aeruginosa found that various nanostructures were developed with different antimicrobial properties. The results of our study suggest that NPs may be a feasible alternative for combating microbial resistance in P. aeruginosa by blocking flux pumps and inhibiting biofilm formation.
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Affiliation(s)
- Pegah Shakib
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Reza Saki
- Department of Microbiology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Abdolrazagh Marzban
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Gholamreza Goudarzi
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Suresh Ghotekar
- Department of Chemistry, Smt. Devkiba Mohansinhji Chauhan College of Commerce and Science, University of Mumbai, Silvassa, Dadra, and Nagar Haveli (UT), IndiaIndia
| | - Kourosh Cheraghipour
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
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Shahbazi S, Zargar M, Zolfaghari MR, Amoozegar MA. Carotenoid pigment of Halophilic archaeon Haloarcula sp. A15 induces apoptosis of breast cancer cells. Cell Biochem Funct 2023; 41:344-354. [PMID: 36850062 DOI: 10.1002/cbf.3786] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/06/2023] [Accepted: 02/18/2023] [Indexed: 03/01/2023]
Abstract
The halophilic microorganisms living in extreme environments contain high concentrations of carotenoids with notable medical abilities. The purpose of this study was to evaluate the anticancer effect of carotenoids extracted from native Iranian halophilic microorganisms with the ability to inhibit breast cancer cell line. To begin the study, 40 halophilic strains were cultured, and 8 strains capable of producing pigmented colonies were chosen from those cultured strains. In the next step, from among 8 strains using MTT assay, 1 capable of reducing cell viability of the breast cancer MCF-7 cell line was chosen as a selective strain. The principal carotenoid was characterized using UV-visible, FT-IR spectroscopic, and LC-MASS analyses. Using real time PCR technique, the expression of genes specific for apoptosis, in the presence or absence of carotenoid, was examined. Among all strains, carotenoid extracted from strain A15 had the most potent cytotoxic effect on breast cancer cell line (IC50 = 0.0645 mg/mL). 16S rRNA gene analysis showed that strain A15 had similarity with Haloarcula hispanica for about 99.5%. According to the analysis results, it could be estimated that the principal carotenoid extracted form Haloarcula sp. A15 was similar to bacterioruberin. Both early and late apoptosis were increased significantly about 10% and 39%, respectively, due to upregulation of CASP3, CASP8, BAX genes expression in MCF-7 cell line. In contrast, the expression of genes MKI67, SOX2 were significantly downregulated in treated MCF-7 cell line. The results of this study showed that Halophilic archaeon strain could be a good candidate for the production of high added-value bacterioruberin due to its possible anticancer properties.
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Affiliation(s)
- Saghar Shahbazi
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | - Mohsen Zargar
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | - Mohammad Ali Amoozegar
- Department of Microbiology, Extremophiles Laboratory, Center of Excellence in Phylogeny of Living Organisms, College of Science, Faculty of Biology, University of Tehran, Tehran, Iran
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Pourmohsen M, Shakib P, Zolfaghari MR. The Prevalence of bla VIM, bla KPC, bla NDM, bla IMP, bla SHV, bla TEM, bla CTX-M, and class I and II integrons Genes in Aeromonas hydrophila Isolated from Clinical Specimens of Qom, Iran. Clin Lab 2023; 69. [PMID: 36649515 DOI: 10.7754/clin.lab.2022.220314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Aeromonas hydrophila is an opportunistic gram-negative bacillus that causes diseases such as gastroenteritis, muscle infections, soft tissue, sepsis, and skin diseases in humans. Today, the prevalence of antibiotic resistance in bacteria has led to treatment failure and prolonged treatment. Therefore, the aim of this study was to evaluate the level of antibiotic resistance in isolates carrying bla VIM, bla KPC, bla NDM, bla IMP, bla SHV, bla TEM, bla CTX-M and class I and II integrons in Aeromonas hydrophila. METHODS In this cross-sectional study, Aeromonas hydrophila were collected from different clinical specimens in Hazrat Masoumeh Hospital, Qom Province, Iran, from 2018 to 2020. The collected isolates were identified by standard biochemical tests. Then, using specific primers bla VIM, bla KPC, bla NDM, bla IMP, bla SHV, bla TEM, bla CTX-M genes, and class I and II integrons were evaluated by PCR method. Then, data were analyzed using SPSS software and chi-squared tests, and the significance level was determined as p ≤ 0.05. RESULTS During the sample collection period, 100 Aeromonas hydrophila were collected. Based on the results of the antibiotic resistance pattern, the highest and lowest rate of antibiotic resistance to ampicillin (92%) and azithromycin (4%) were determined for both. Among the 100 isolates, 60 isolates produced broad-spectrum beta-lactamase (ESBL) and 50 isolates produced carbapenemase. Among the studied beta-lactamase genes, the highest and lowest frequencies were related to bla CTX-M (58%) and bla TEM (1%), respectively. The frequency of class I and II integron genes was 27% and 15%, respectively. CONCLUSIONS The results of the study of antibiotic resistance, beta-lactamase, and carbapenemase genes showed high resistance in Aeromonas hydrophila, which raises concerns with regard to controlling infection in medical centers. Also, the study of antibiotic resistance in the presence of beta-lactamase genes showed that there was only a significant relationship between the presence of bla CTX-M gene and resistance to imipenem (p = 0.037).
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Sharifabady SM, Shakib P, Omidi B, Zolfaghari MR. Biosynthesis of Zinc Oxide Nanoparticles by Lactobacillus spp. and Investigation of their Antimicrobial Effect. Curr Drug Discov Technol 2023; 20:e010523216388. [PMID: 37138475 DOI: 10.2174/1570163820666230501152951] [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: 11/27/2022] [Revised: 02/13/2023] [Accepted: 03/13/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND Nanoparticle biology is preferable to other common methods due to its economic efficiency and compatibility with the environment. On the other hand, the prevalence of drug-resistant bacterial strains is expanding and it is necessary to use alternative antibiotic compounds to deal with them. The aim of the present study was the biosynthesis of zinc oxide nanoparticles(ZnO NPs) by Lactobacillus spp. and their antimicrobial effect. METHODS In this study, after the biosynthesis of ZnO NPs by Lactobacillus spp, Characterization of Nanoparticulation Was performed by UV-Vis, XRD, and Scanning Electron Microscopy (SEM). Additionally, Lactobacillus spp. - ZnO NPs were assessed for their antimicrobial properties. RESULTS UV-visible spectroscopy confirmed the Lactobacillus spp. - ZnO NPs absorbed UV in the region of 300-400 nm. XRD analysis showed the presence of zinc metal in nanoparticles. SEM revealed that Lactobacillus plantarum - ZnO NPs were smaller than the others. Staphylococcus aureus showed the largest non-growth halo diameter against ZnO NPs synthesized by L. plantarum ATCC 8014 (3.7 mm). E. coli had the largest growth halo diameter against ZnO NPs synthesized by L. casei (3 mm) and L. plantarum (2.9 mm). The MIC values of ZnO NPs synthesized by L. plantarum ATCC 8014, L.casei ATCC 39392, L. fermenyum ATCC 9338, L. acidophilus ATCC 4356 were 2,8,8 and 4 μg/mL for Staphylococcus aureus. The MIC values of ZnO NPs synthesized by L. plantarum ATCC 8014, L. casei ATCC 39392, L. fermenyum ATCC 9338, L. acidophilus ATCC 4356 were 2, 4, 4, and 4 μg/ml for E. coli. The lowest MICs were 2 μg/ml for E. coli and S. aureus related to ZnO NPs synthesized by L. plantarum ATCC 8014. MIC and MBC values were equivalent to each other. CONCLUSION The results of this research show that ZnO NPs synthesized by L. plantarum ATCC 8014 have more antimicrobial effects than other ZnO NPs used. Therefore, the ZnO NPs made with Lactobacillus plantarum ATCC 8014 have the potential to kill bacteria and can be considered a candidate for antibiotic replacement.
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Affiliation(s)
| | - Pegah Shakib
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Behin Omidi
- Department of Biology, Faculty of Basic Science, Islamic Azad University, Central Tehran Branch, Tehran, Iran
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Zolfaghari MR, Soleimani MH, shakib P, Javadi A. Evaluation of Gold Nanoparticles on the Expression of NorA and NorB Efflux Pumps in Ciprofloxacin-resistant Staphylococcus aureus Isolated from Burn Patients. CDTH 2022. [DOI: 10.2174/1574885518666221214113003] [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] [Indexed: 12/15/2022]
Abstract
Background:
In the development of multidrug resistance, efflux pumps effectively pump drug compounds out of cells, which results in reduced membrane permeability to drug compounds. This study evaluated the effect of gold nanoparticles on the inhibition of norA and norB efflux pumps in ciprofloxacin-resistant Staphylococcus aureus isolated from burn patients in Qom province, Iran.
Methods:
In this cross-sectional study, S. aureus strains were isolated from burn patients in Qom hospital, Iran. After gold nanoparticles were synthesized using chemical reduction and characterized by spectrophotometry, transmission electron microscopy (TEM), and dynamic light scattering (DLS), ciprofloxacin resistance of S. aureus was screened by the disc diffusion method. The Minimum Inhibitory Concentration (MIC) of ciprofloxacin (CCCP), ciprofloxacin + gold nanoparticles (CCCP + gold nanoparticles), and ciprofloxacin + CCCP was determined. Moreover, norA and norB genes were evaluated by PCR using special primers. Real-time PCR was then performed for norA and norB genes.
Results:
Of 88 S. aureus strains tested, 50 (56.81%) were resistant to ciprofloxacin. From the 50 ciprofloxacin-resistant S. aureus strains, 12 isolates had active pumps. Real-time PCR of 12 ciprofloxacin-resistant S. aureus and S. aureus ATCC 25923 before and after exposure to ciprofloxacin, gold nanoparticles, and gold nanoparticles with sub-MIC ciprofloxacin revealed significant differences in expression of norA and norB genes before exposure to the treatments compared to after exposure (p <0.05).
Conclusion:
Gold nanoparticles with ciprofloxacin could be used to prevent the expression of pump genes involved in resistance to fluoroquinolone compounds.
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Affiliation(s)
| | | | - pegah shakib
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Ali Javadi
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
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Roshani M, Baniebrahimi G, Mousavi M, Zare N, Sadeghi R, Salarinia R, Sheida A, Molavizadeh D, Sadeghi S, Moammer F, Zolfaghari MR, Mirzaei H. Exosomal long non-coding RNAs: novel molecules in gastrointestinal cancers' progression and diagnosis. Front Oncol 2022; 12:1014949. [PMID: 36591473 PMCID: PMC9795196 DOI: 10.3389/fonc.2022.1014949] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/10/2022] [Indexed: 12/15/2022] Open
Abstract
Gastrointestinal (GI) cancers arise in the GI tract and accessory organs, including the mouth, esophagus, stomach, liver, biliary tract, pancreas, small intestine, large intestine, and rectum. GI cancers are a major cause of cancer-related morbidity and mortality worldwide. Exosomes act as mediators of cell-to-cell communication, with pleiotropic activity in the regulation of homeostasis, and can be markers for diseases. Non-coding RNAs (ncRNAs), such as long non-coding RNAs (lncRNAs), can be transported by exosomes derived from tumor cells or non-tumor cells. They can be taken by recipient cells to alter their function or remodel the tumor microenvironment. Moreover, due to their uniquely low immunogenicity and excellent stability, exosomes can be used as natural carriers for therapeutic ncRNAs in vivo. Exosomal lncRNAs have a crucial role in regulating several cancer processes, including angiogenesis, proliferation, drug resistance, metastasis, and immunomodulation. Exosomal lncRNA levels frequently alter according to the onset and progression of cancer. Exosomal lncRNAs can therefore be employed as biomarkers for the diagnosis and prognosis of cancer. Exosomal lncRNAs can also monitor the patient's response to chemotherapy while also serving as potential targets for cancer treatment. Here, we discuss the role of exosomal lncRNAs in the biology and possible future treatment of GI cancer.
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Affiliation(s)
- Mohammad Roshani
- Internal Medicine and Gastroenterology, Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ghazaleh Baniebrahimi
- Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahboubeh Mousavi
- Department of Anatomy, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Noushid Zare
- Faculty of Pharmacy, Tehran University of Medical Science, Tehran, Iran
| | - Reza Sadeghi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Salarinia
- Department of Advanced Technologies, School of Medicine, North Khorasan University of Sciences, Bojnurd, Iran
| | - Amirhossein Sheida
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran,Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Danial Molavizadeh
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran,Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Sara Sadeghi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran,Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Farzaneh Moammer
- Research Committee, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran,*Correspondence: Farzaneh Moammer, ; Mohammad Reza Zolfaghari, ; Hamed Mirzaei, ;
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran,*Correspondence: Farzaneh Moammer, ; Mohammad Reza Zolfaghari, ; Hamed Mirzaei, ;
| | - Hamed Mirzaei
- Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran,*Correspondence: Farzaneh Moammer, ; Mohammad Reza Zolfaghari, ; Hamed Mirzaei, ;
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12
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Khoshakhlagh A, Aghaei SS, Abroun S, Soleimani M, Zolfaghari MR. Investigation of diverse biosynthetic secondary metabolites gene clusters using genome mining of indigenous Streptomyces strains isolated from saline soils in Iran. Iran J Microbiol 2022; 14:881-890. [PMID: 36721452 PMCID: PMC9867626 DOI: 10.18502/ijm.v14i6.11263] [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] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background and Objectives Bioactive secondary metabolites are the products of microbial communities adapting to environmental challenges, which have yet remained anonymous. As a result of demands in the pharmaceutical, agricultural, and food industries, microbial metabolites should be investigated. The most substantial sources of secondary metabolites are Streptomyces strains and are potential candidates for bioactive compound production. So, we used genome mining and bioinformatics to predict the isolates secondary metabolites, biosynthesis, and potential pharmaceuticals. Materials and Methods This is a bioinformatics part of our previous experimental research. Here, we aimed to inspect the underlying secondary metabolite properties of 20 phylogenetically diverse Streptomyces species of saline soil by a rationalized computational workflow by several software tools. We examined the Metabolites' cytotoxicity and antibacterial effects using the MTT assay and plate count technique, respectively. Results Among Streptomyces species, three were selected for genome mining and predicted novel secondary metabolites and potential drug abilities. All 11 metabolites were cytotoxic to A549, but ectoine (p≤0.5) and geosmin (p≤0.001) significantly operated as an anti-cancer drug. Metabolites of oxytetracycline and phosphinothricin (p≤0.001), 4Z-annimycin and geosmin (p≤0.01), and ectoine (p≤0.5) revealed significant antibacterial activity. Conclusion Of all the 11 compounds investigated, annimycin, geosmin, phosphinothricin, and ectoine had antimicrobial properties, but geosmin also showed very significant anti-cancer properties.
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Affiliation(s)
- Amin Khoshakhlagh
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | - Seyed Soheil Aghaei
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran,Corresponding author: Seyed Soheil Aghaei, Ph.D, Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran. Tel: +98-25-32808080 Fax: +98-25-32804040
| | - Saeid Abroun
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Soleimani
- Department of Microbiology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
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13
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Masoumi M, Sakhaee F, Zolfaghari MR, Tarashi S, Rahimi Jamnani F, Vaziri F, Siadat SD, Fateh A. Mixed pulmonary infection with four isolates of nontuberculous mycobacteria: a case report of mycobacterium bacteremicum infection. Pneumonia (Nathan) 2022; 14:7. [PMCID: PMC9636635 DOI: 10.1186/s41479-022-00100-6] [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: 07/12/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022] Open
Abstract
Abstract
Background
A mixed pulmonary infection of Mycobacterium bacteremicum and three different isolates of nontuberculous mycobacteria (NTM) is an unusual clinical manifestation and have not yet been indicated. In this case report, we reported four isolates of NTM using phenotypic and genotypic test of pulmonary sample in Tehran, Iran.
Case presentation
We report a case of severe pulmonary disease in a 19-year-old male patient with productive cough, shortness of breath, and low-grade fever for several weeks. The C-reactive protein (CRP) level (80.2 mg/L) and erythrocyte sedimentation rate (ESR) (95 mm/h) were high. The computed tomographic scan indicated bronchiectasis, nodular opacities, consolidation, and cavitary lesions on both sides. The result of purified protein derivative (PPD) test was equal to 15 mm. The sequences of hsp65, rpoB, and 16S rDNA genes indicated more than 99% homology to four isolates of nontuberculous mycobacteria (NTM), including Mycobacterium fortuitum, M. chelonae, M. mucogenicum, and M. bacteremicum. We found that all four strains were susceptible to amikacin, cefoxitin, ciprofloxacin, clarithromycin, imipenem, and linezolid. The patient was treated with ciprofloxacin, clarithromycin, and amikacin, along with Montelukast, for five months.
Conclusion
We report a case of severe pulmonary infection by four isolates of NTM. After treatment, the patient reported complete resolution of the signs and a weight gain of 5 kg; also, the CRP and ESR were normal. Nine months after the infection diagnosis, a new CT scan revealed further improvements.
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14
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Khoshakhlagh A, Abroun S, Aghaei SS, Soleimani M, Zolfaghari MR. Analysis of the A549 cell line affected by anticancer bioactive compounds of Actinomycetes isolated from saline soils. Arch Microbiol 2022; 204:641. [PMID: 36149504 DOI: 10.1007/s00203-022-03258-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 08/16/2022] [Accepted: 09/12/2022] [Indexed: 11/02/2022]
Abstract
Actinomycetes are filamentous bacteria and the residents of the soil, prone to produce bioactive metabolites. This research aimed to isolate, classify, and investigate the anticancer properties of Actinomycetes secondary metabolites from various saline soils of Qom province. Actinomycetes isolates were molecularly recognized by 16SrRNA gene sequencing after the PCR procedure. The A549 cell line was then exposed to bacterial metabolites to find their cytotoxicity by MTT assay and their capacity to cause apoptosis by Flow cytometry. The expression levels of the bax and bcl-2 genes were determined using Real-time PCR. Bacterial metabolites were distinct by HPLC and GC-MS assays. Sequencing identified three novel Actinomycetes strains, Streptomyces griseoflavus, Streptomyces calvus, and Kitasatospora phosalacineus. The IC50 doses of bacterial metabolites were discovered equal to 1337, 2619, and 4874 µg/ml, respectively. Flow cytometric assay revealed that their secondary metabolites were capable of inducing apoptosis in A549 cells by 25%, 14.5%, and 7.58%, respectively. Real-time PCR findings displayed that the bax gene expression in A549 cells treated with S. griseoflavus and S. calvus, comparatively increased (P < 0.0008, P < 0.00056). The expression of the bcl-2 gene was significantly reduced in cells treated with S. griseoflavus and K. phosalacineus (P < 0.0006, P < 0.0004). The findings of this analysis showed the presence of new isolates in a soil sample from Qom province which can produce new anticancer agents and can be considered appropriate candidates for further research to employ as anticancer drugs.
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Affiliation(s)
- Amin Khoshakhlagh
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | - Saeid Abroun
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, 14115-11, Iran.
| | | | - Mohammad Soleimani
- Department of Microbiology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
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15
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Heidari B, Zolfaghari MR, Khademvatani K, Fattahi A, Zarezadeh R. Interrelation among exercise training, cardiac hypertrophy, and tissue kallikrein-kinin system in athlete and non-athlete women. J Cardiovasc Thorac Res 2022; 14:159-165. [DOI: 10.34172/jcvtr.2022.28] [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: 01/07/2022] [Accepted: 08/16/2022] [Indexed: 11/06/2022] Open
Abstract
Introduction: The tissue kallikrein-kinin system is an endogenous homeostatic pathway, which its stimulation is associated with cardioprotection. The present study aimed to determine the effect of exercise training on plasma tissue kallikrein (TK) and bradykinin (BK) and their association with cardiac hypertrophy. Methods: 22 non-athlete and 22 athlete women were exposed to acute (Bruce test) and chronic (12-week swimming training) exercises. 2D echocardiography was used to evaluate morphological and functional features of the heart. Plasma concentrations of TK and BK were quantified by ELISA. Results: Athletes had significantly higher values of left ventricle end-diastolic diameter index (LVEDDI) and left ventricle mass index (LVMI) than non-athletes. Exercise intervention affected echocardiographic features in neither of the study groups. Chronic exercise training notably increased plasma levels of TK and BK, which increase was more pronounced in the athletes. Plasma TK negatively correlated with LVEDDI (r=−0.64, P=0.036 and r=−0.58, P=0.027) and LVMI (r=−0.51, P=0.032 and r=−0.63, P=0.028) in the non-athlete and athlete groups. In opposition, there was a positive correlation between plasma TK and left ventricle ejection fraction in non-athletes (r=0.39, P=0.049) and athletes (r=0.53, P=0.019). Conclusion: The upregulation of the tissue kallikrein-kinin system may be a protective mechanism against excessive cardiac hypertrophy induced by chronic exercise training.
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Affiliation(s)
- Behnam Heidari
- Department of Physical Education, Faculty of Sport Sciences, Urmia University, Urmia, Iran
| | | | - Kamal Khademvatani
- Cardiology Department, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Amir Fattahi
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Zarezadeh
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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16
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Miri SM, Pourhossein B, Hosseini SY, Keshavarz M, Shahmahmoodi S, Zolfaghari MR, Mohebbi SR, Gorji A, Ghaemi A. Enhanced synergistic antitumor effect of a DNA vaccine with anticancer cytokine, MDA-7/IL-24, and immune checkpoint blockade. Virol J 2022; 19:106. [PMID: 35752792 PMCID: PMC9233788 DOI: 10.1186/s12985-022-01842-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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 06/06/2022] [Indexed: 11/22/2022] Open
Abstract
Background MDA-7/IL-24 cytokine has shown potent antitumor properties in various types of cancer without exerting any significant toxicity on healthy cells. It has also been proved to encompass pro-immune Th1 cytokine-like behavior. Several E7 DNA vaccines have developed against human papillomavirus (HPV)-related cervical cancer. However, the restricted immunogenicity has limited their clinical applications individually. To address this deficiency, we investigated whether combining the E7 DNA vaccine with MDA-7/IL-24 as an adjuvant would elicit efficient antitumor responses in tumor-bearing mouse models. Next, we evaluated how suppression of immunosuppressive IL-10 cytokine would enhance the outcome of our candidate adjuvant vaccine.
Methods For this purpose, tumor-bearing mice received either E7 DNA vaccine, MDA-7/IL-24 cytokine or combination of E7 vaccine with MDA-7/IL-24 adjuvant one week after tumor challenge and boosted two times with one-week interval. IL-10 blockade was performed by injection of anti-IL-10 mAb before each immunization. One week after the last immunization, mice were sacrificed and the treatment efficacy was evaluated through immunological and immunohistochemical analysis. Moreover, the condition of tumors was monitored every two days for six weeks intervals from week 2 on, and the tumor volume was measured and compared within different groups. Results A highly significant synergistic relationship was observed between the E7 DNA vaccine and the MDA-7/IL-24 cytokine against HPV-16+ cervical cancer models. An increase in proliferation of lymphocytes, cytotoxicity of CD8+ T cells, the level of Th1 cytokines (IFN-γ, TNF-α) and IL-4, the level of apoptotic markers (TRAIL and caspase-9), and a decrease in the level of immunosuppressive IL-10 cytokine, together with the control of tumor growth and the induction of tumor regression, all prove the efficacy of adjuvant E7&IL-24 vaccine when compared to their individual administration. Surprisingly, vaccination with the DNA E7&IL-24 significantly reduced the population of Regulatory T cells (Treg) in the spleen of immunized mice compared to sole administration and control groups. Moreover, IL-10 blockade enhanced the effect of the co-administration by eliciting higher levels of IFN-γ and caspase-9, reducing Il-10 secretion and provoking the regression of tumor size. Conclusion The synergy between the E7 DNA vaccine and MDA-7/IL-24 suggests that DNA vaccines’ low immunogenicity can be effectively addressed by coupling them with an immunoregulatory agent. Moreover, IL-10 blockade can be considered a complementary treatment to improve the outcome of conventional or novel cancer therapies. Supplementary Information The online version contains supplementary material available at 10.1186/s12985-022-01842-x.
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Affiliation(s)
- Seyed Mohammad Miri
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, P.O. Box: 1316943551, Tehran, Iran
| | - Behzad Pourhossein
- Department of Medical Virology, Hamedan University of Medical Sciences, Hamedan, Iran.,Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Younes Hosseini
- Department of Bacteriology and Virology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohsen Keshavarz
- The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Shohreh Shahmahmoodi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Seyed Reza Mohebbi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Gorji
- Department of Neurosurgery and Department of Neurology, Westfälische Wilhelms-Universität, Münster, Germany.,Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran
| | - Amir Ghaemi
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, P.O. Box: 1316943551, Tehran, Iran.
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17
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Rahmati A, Shakib P, Javadi A, Zolfaghari MR. Synthesis and Evaluation of Antimicrobial Activities of Gold and ZnO Nanoparticles on Inhibiting the MexAB-OprM Efflux Pump in Pseudomonas aeruginosa Isolates. BioNanoSci 2022. [DOI: 10.1007/s12668-022-00992-0] [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: 10/18/2022]
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18
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Habibinava F, Soleimani M, Sabouri S, Zargar M, Zolfaghari MR. Isolating and sequencing vB_Kpn_3, a lytic bacteriophage against multidrug-resistant Klebsiella pneumoniae. Future Microbiol 2022; 17:235-249. [PMID: 35152708 DOI: 10.2217/fmb-2020-0272] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Phage therapy, as an effective and specific method in the treatment of multidrug-resistant (MDR) bacterial infections, has attracted the attention of many researchers. Methods and results: In this study, a double-stranded DNA phage with the ability of lysing some strains of MDR Klebsiella pneumoniae (vB_Kpn_3) was isolated from hospitals' wastewater and then characterized morphologically and genetically. Transmission electron microscopy and genetic analyses have revealed that vB_Kpn_3 is a member of Siphoviridae family. One-step growth curve also showed a burst time of 35 min and a burst size of 31 PFU/ml. The genome of the phage is composed of 112,080 bp with 41.33% G + C content carrying 186 open reading frames. Conclusion: vB_Kpn_3 is a broad host range phage that infects MDR K. pneumoniae and some other species of Enterobacteriaceae such as Escherichia coli and Salmonella typhi. In addition, no antibiotic resistance and toxin genes were detected in its genome.
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Affiliation(s)
- Fatemeh Habibinava
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | - Mohammad Soleimani
- Department of Microbiology, Faculty of Medicine, AjA University of Medical Sciences, Tehran, Iran
| | - Salehe Sabouri
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohsen Zargar
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
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19
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Rostampour D, Zolfaghari MR, Gholami M. Novel insertion mutation in the
PLA2G6
gene in an Iranian family with infantile neuroaxonal dystrophy. J Clin Lab Anal 2022; 36:e24253. [PMID: 35092705 PMCID: PMC8906051 DOI: 10.1002/jcla.24253] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/01/2022] [Accepted: 01/11/2022] [Indexed: 11/12/2022] Open
Abstract
Background Infantile neuroaxonal dystrophy is an autosomal recessive neurological disorder. Individuals with infantile neuroaxonal dystrophy experience progressive loss of vision, mental skills and muscular control, and other variable clinical signs. Pathogenic variants in the PLA2G6 gene, encoding phospholipase A2, are recognized to be the fundamental reason for infantile neuroaxonal dystrophy. This study aimed to detect pathogenic variant in a consanguine Iranian family with infantile neuroaxonal dystrophy. Methods The mutation screening was done by whole exome sequencing followed by direct Sanger sequencing. Results We identified a homozygous insertion mutation, NM_003560: c.1548_1549insCG (p.G517Rfs*29) in exon 10 of PLA2G6 in the patient. The parents were heterozygous for variant. Conclusions Because of the clinical heterogeneity and rarity of infantile neuroaxonal dystrophy, whole exome sequencing is critical to confirm the diagnosis and is an excellent tool for INAD management.
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Affiliation(s)
- Dorsa Rostampour
- Department of Microbiology Qom Branch Islamic Azad University Qom Iran
| | | | - Milad Gholami
- Department of Biochemistry and Genetics School of Medicine Arak University of Medical Sciences Arak Iran
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20
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Habibinava F, Zolfaghari MR, Zargar M, Shahrbabak SS, Soleimani M. vB-Ea-5: a lytic bacteriophage against multi-drug-resistant Enterobacter aerogenes. Iran J Microbiol 2021; 13:225-234. [PMID: 34540158 PMCID: PMC8408028 DOI: 10.18502/ijm.v13i2.5984] [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] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Background and Objectives: Multi-drug-resistant Enterobacter aerogenes is associated with various infectious diseases that cannot be easily treated by antibiotics. However, bacteriophages have potential therapeutic applications in the control of multi-drug-resistant bacteria. In this study, we aimed to isolate and characterize of a lytic bacteriophage that can lyse specifically the multi-drug-resistant (MDR) E. aerogenes. Materials and Methods: Lytic bacteriophage was isolated from Qaem hospital wastewater and characterized morphologically and genetically. Next-generation sequencing was used to complete genome analysis of the isolated bacteriophage. Results: Based on the transmission electron microscopy feature, the isolated bacteriophage (vB-Ea-5) belongs to the family Myoviridae. vB-Ea-5 had a latent period of 25 minutes, a burst size of 13 PFU/ml, and a burst time of 40 min. Genome sequencing revealed that vB-Ea-5 has a 135324 bp genome with 41.41% GC content. The vB-Ea-5 genome codes 212 ORFs 90 of which were categorized into several functional classes such as DNA replication and modification, transcriptional regulation, packaging, structural proteins, and a host lysis protein (Holin). No antibiotic resistance and toxin genes were detected in the genome. SDS-PAGE of vB-Ea-5 proteins exhibited three major and four minor bands with a molecular weight ranging from 18 to 50 kD. Conclusion: Our study suggests vB-Ea-5 as a potential candidate for phage therapy against MDR E. aerogenes infections.
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Affiliation(s)
- Fatemeh Habibinava
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, Qom, Iran
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, Qom, Iran
| | - Mohsen Zargar
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, Qom, Iran
| | - Salehe Sabouri Shahrbabak
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.,Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Soleimani
- Department of Microbiology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran.,Infectious Diseases Research Center, AJA University of Medical Sciences, Tehran, Iran
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21
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Ebadi M, Zolfaghari MR, Aghaei SS, Zargar M, Noghabi KA. Desertifilum sp. EAZ03 cell extract as a novel natural source for the biosynthesis of zinc oxide nanoparticles and antibacterial, anticancer and antibiofilm characteristics of synthesized zinc oxide nanoparticles. J Appl Microbiol 2021; 132:221-236. [PMID: 34101961 DOI: 10.1111/jam.15177] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 03/18/2021] [Revised: 05/21/2021] [Accepted: 06/04/2021] [Indexed: 12/13/2022]
Abstract
AIMS The use of cyanobacterial cell extracts for the synthesis of zinc oxide nanoparticles (ZnO NPs) seems to be superior to other methods of synthesis because of its a green, environmentally friendly and low-cost approach. In this study, the cell extract of a newly characterized cyanobacterial strain Desertifilum sp. EAZ03 was used for the biosynthesis of ZnO NPs. The antimicrobial, antibiofilm and anticancer activities of the biosynthesized ZnO NPs (hereinafter referred to as CED-ZnO NPs) were examined as well. METHODS AND RESULTS UV-Vis spectroscopy analysis of CED-ZnO NPs showed an absorbance band at 364 nm, and powder X-ray diffraction analysis confirmed the purity of the synthesized nanoparticles. The analyses of scanning electron microscopy and transmission electron microscopy images revealed that CED-ZnO NPs were rod-shaped with a size of 88 nm. The study of the biological features of CED-ZnO NPs showed a significant antimicrobial potential against the bacterial strains tested. CED-ZnO NPs were able to impede the biofilm formation by Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa up to 80%, 89% and 85%, respectively. The nanoparticles also showed 69%, 70% and 62% degrading activity against S. aureus, E. coli and P. aeruginosa 1-day-old biofilms, respectively. The antibiofilm activity of the synthesized nanoparticles was investigated by confocal laser scanning microscopy. The MTT assay showed that CED-ZnO NPs, at a concentration of 100 μg/ml, had less cytotoxicity towards normal lung (MRC-5) cells, at the half, compared to cancerous lung alveolar epithelial (A549) cells. The minimum inhibitory concentration and minimum bactericidal concentration values of CED-ZnO NPs against E. coli, P. aeruginosa and S. aureus were 1500, 2000 and 32 μg/ml, and 2500, 3500 and 64 μg/ml, respectively. CONCLUSIONS The multifunctional CED-ZnO NPs seem to be promising for possible applications in the therapeutic and pharmaceutical industries. SIGNIFICANCE AND IMPACT OF THE STUDY This study proposes a new approach for the biosynthesis of zinc oxide nanoparticles using a newly characterized cyanobacterial strain Desertifilum sp. EAZ03. The considerable antimicrobial, antibiofilm and anticancer activities of the biosynthesized zinc oxide nanoparticles further emphasize the emerging role of microbial systems in the green synthesis of metal oxide nanoparticles.
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Affiliation(s)
- Mojgan Ebadi
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | | | | | - Mohsen Zargar
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | - Kambiz Akbari Noghabi
- Department of Energy & Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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22
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Khademvatani K, Yekta Z, Seyed Mohammadzad M, Khanahmadi S, Afsargharehbagh R, Majdi L, Rostamzadeh A, Hajahmadipoor Rafsanjani M, Soleimany A, Niknejad E, Zolfaghari MR, Khanahmadi S, Pourmansouri Z, Karimi R. The predictive value of serum klotho in diabetes mellitus and hypertension. J Nephropathol 2020. [DOI: 10.34172/jnp.2021.07] [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] [Indexed: 11/09/2022] Open
Abstract
Introduction: Klotho allele status is associated with increased risk of cardiovascular diseases, diabetes and hypertension. Objectives: To determine if serum klotho level was lower among diabetic and hypertensive patients compared to control group. Patients and Methods: This was a cross-sectional study of 90 participants. Thirty pure diabetic patients and 30 participants with pure hypertension were compared with the healthy control group. Multiple logistic regressions were used to examine the association between serum klotho and diabetes and hypertension. We also tested the cut off point of serum klotho to predict hypertension and diabetes by using ROC (receiver operating characteristic) curve. Results: The level of serum klotho was significantly lower in diabetic and hypertensive patients. Participants with higher klotho were less likely to have diabetes and hypertension [OR: 0.48, 95% CI (0.22-0.81)] even after adjustment for covariates. ROC curve for diabetes and hypertension indicated 0.8 area under the curve which was statistically significant. Conclusion: This study found that serum klotho was associated with lower odds of diabetes and hypertension. Further longitudinal studies are necessary to confirm this finding.
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Affiliation(s)
- Kamal Khademvatani
- Seyyed-al-Shohada Heart Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Zahra Yekta
- Department of Community Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Shahriar Khanahmadi
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Leila Majdi
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | | | | | | | - Elham Niknejad
- Department of Dentistry, Urmia University of Medical Sciences, Urmia, Iran
| | - Mohammad Reza Zolfaghari
- Department of Exercise Physiology, Faculty of Physical Education and Sport Science, Urmia University of Medical Sciences, Urmia, Iran
| | - Shima Khanahmadi
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | - Zeinab Pourmansouri
- Department of Clinical Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Karimi
- Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
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Big Mohammadi H, Pouladi I, Zolfaghari MR, Niakan M. The Prevalence of 23S rRNA Mutations in ML-Resistant M. pneumoniae Isolates to Clarithromycin in Patients with Respiratory Infections. Rep Biochem Mol Biol 2020; 9:156-162. [PMID: 33178864 PMCID: PMC7603257 DOI: 10.29252/rbmb.9.2.156] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 02/28/2020] [Indexed: 10/31/2022]
Abstract
BACKGROUND Mycoplasma pneumoniae is one of the widespread causes of community-acquired pneumonia (CAP). Over recent years, the widespread use of macrolides has led to the emergence of macrolide-resistant M.pneumoniae (MRMP) resulted from mutations at specific positions of domain V of the 23S rRNA gene. METHODS We collected 100 samples of throat swabs from patients with respiratory infections. After extraction of DNA from bacterial cell cultured in PPLO broth media using Roche kit (Germany), the PCR was performed on specific samples of M. pneumoniae using specific primers for 23S rRNA gene.Afterwards, for positive samples, minimum inhibitory concentration (MIC) was determined using the broth microdilution with Clarithromycin. Finally, the PCR product was sequenced to detect mutations related to macrolide resistance in domain V of 23S rRNA . RESULTS According to the analysis of the sequenced PCR product of M. pneumoniae 23S rRNA gene using Clustalw2 online software, one of the samples were shown to have a mutation at A2431G and G2491A positions. The MIC measurement also revealed that all isolates were sensitive to Clarithromycin, and there was no macrolide resistance to Clarithromycin in all isolates. CONCLUSION Sequence analysis of the 23S rRNA gene in M. pneumoniae , revealed no macrolide resistance of M. pneumoniae to Clarithromycin. Thus, the use of these antibiotics should be restricted to prevent the development of macrolide-resistant M. pneumoniae in Iran.
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Affiliation(s)
| | - Iman Pouladi
- Department of Microbiology, Faculty of Medicine, LorestanUniversity of Medical Sciences, Khorramabad, Iran.
| | | | - Mohammad Niakan
- Department of Microbiology, Faculty of Medicine, LorestanUniversity of Medical Sciences, Khorramabad, Iran.
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Dashtizade M, Zolfaghari MR, Yousefi M, Nazari-Alam A. Antibiotic Susceptibility Patterns and Prevalence of Streptococcus Agalactiae Rectovaginal Colonization Among Pregnant Women in Iran. Rev Bras Ginecol Obstet 2020; 42:454-459. [PMID: 32559790 PMCID: PMC10309249 DOI: 10.1055/s-0040-1710299] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE Streptococcus agalactiae is an important pathogen in neonates and pregnant women. Neonatal invasive infections due to S. agalactiae are life-threatening and preventive strategies for this challenge of human have become a concern. The aim of the present study was to determine the prevalence of rectovaginal colonization, related risk factors and antibiotic resistance pattern of S. agalactiae among pregnant women in Iran. METHODS The present study was performed on 240 pregnant women. Vaginal and rectal swabs were obtained from all of the women and then were transferred to the laboratory. The isolation and identification of S. agalactiae was performed by standard microbiological tests and polymerase chain reaction (PCR) assay. The antimicrobial susceptibility patterns of the isolates were determined by the Kirby-Bauer disk diffusion. Polymerase chain reaction was used to detect ermB and mefA genes in erythromycin-nonsusceptible isolates. RESULTS Out of 240 pregnant women, 16 cases (6.7%) were colonized by S. agalactiae. There is no significant association between demographic-obstetric factors and maternal S. agalactiae colonization in the pregnant women. Linezolid, vancomycin and ampicillin were the most effective antibiotics against S. agalactiae. The ermB gene was present in 6 (35.29%) S. agalactiae isolates. However, the mefA gene was not detected in any of the isolates. CONCLUSION Given the relatively significant prevalence of S. agalactiae colonization in the pregnant women in the present study and the risk of serious neonatal infections, the screening of pregnant mothers for the bacteria seems necessary. Our findings highlight the importance of appropriate antibiotic prophylaxis during pregnancy for the prevention of early onset S. agalactiae-neonatal infection and comorbidity.
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Affiliation(s)
- Mina Dashtizade
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | | | - Masoud Yousefi
- Birjand Infectious Diseases Research Center, Department of Microbiology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Ali Nazari-Alam
- Department of Microbiology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
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Ghaffari Marandi BH, Zolfaghari MR, Kazemi R, Motamedi MJ, Amani J. Immunization against Vibrio cholerae, ETEC, and EHEC with chitosan nanoparticle containing LSC chimeric protein. Microb Pathog 2019; 134:103600. [PMID: 31202906 DOI: 10.1016/j.micpath.2019.103600] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 02/06/2019] [Revised: 06/12/2019] [Accepted: 06/13/2019] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Severe intestinal infections caused by V. cholerae, ETEC and EHEC have contributed to the mortality rate in developing countries. Vibrio Cholera, ETEC and EHEC bacterium with the production of CT, LT and Stx2 toxins respectively lead to severe watery and bloody diarrhea. This study aimed to investigate a trimeric vaccine candidate containing recombinant chimeric protein, encapsulate the protein in chitosan nanoparticles and assess its immunogenicity. METHODS The LSC recombinant gene was used. It is composed of LTB (L), STXB (S) and CTXB (C) subunits respectively. The LSC recombinant protein was expressed and purified and confirmed by western blotting. The purified protein was encapsulated in chitosan nanoparticles, and its size was measured. BalB/c mice were immunized in four groups through oral and injection methods by LSC protein. The antibody titer was then evaluated by ELISA, and finally, the challenge test of the toxins from all three bacteria was done on the immunized mouse. RESULTS After expression and purification LSC protein size of nanoparticles containing protein was measured at 104.6 nm. Nanoparticles were able to induce systemic and mucosal immune responses by generating a useful titer of IgG and IgA. The challenge results with LT, CT and Stx toxins showed that the LSC protein might partially neutralize the effect of toxins. CONCLUSION LSC chimeric protein with the simultaneous three essential antigens have a protective effect against the toxins produced by ETEC, EHEC and Vibrio cholera bacteria and it can be used in vaccines to prevent Diarrhea caused by these three bacteria.
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Affiliation(s)
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | | | | | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Soleimani M, Zolfaghari MR. Development and Comparison of In-house Line Probe Assay (LiPA) and SYBR Green Real-time PCR Regarding the Detection of Periodontal Pathogens. Avicenna J Med Biotechnol 2019; 11:80-87. [PMID: 30800247 PMCID: PMC6359689] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Periodontal disease, which can become a chronic condition, is an inflammatory disease that upsets the soft and hard structures supporting the teeth. The aim of the present study was to design and develop an in-house Line Probe Assay (LiPA), to detect putative periodontitis-related bacterial pathogens, and compare it with SYBR Green Real-time PCR. METHODS The LiPA method was launched using biotinylated 16s rRNA universal primers and specific probes for each of the five bacteria including Aggregatibacter acti-nomycetemcomitans, Prevotella intermedia, Tannerella forsythia, Porphyromonas gingivalis and Treponema denticola. For this, optimized quantities of the primers and specific probes were dotted onto nylon membrane stripes in a defined pattern. Hybridization was performed between the probes and the single-stranded biotinylated PCR products. The stripes were developed via biotin-streptavidin reaction. Ultimately, the analytical and diagnostic sensitivity and specificity of the in-house LiPA was evaluated and compared with SYBR Green Real-time PCR. RESULTS The detection limit of the LiPA was 2760 copies of targeted genes. In testing analytical specificity, only signals corresponding to the specific biotinylated products were produced. The calculated diagnostic sensitivity of the LiPA for the five bacterial targets ranged from 96.4 to 100%, whereas the diagnostic specificity was between 90.9 and 100%. Comparing the results, no noticeable difference (p=0.4795) was observed between the two methods. CONCLUSION To screen periodontal pathogens, a simple, inexpensive and accurate method is desirable. The in-house LiPA, having advantages such as high specificity and sensitivity, and the ability to detect five major periodontal pathogens, offers the option of evaluating samples without the need for a post-PCR platform.
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Affiliation(s)
- Mohammad Soleimani
- Corresponding author: Mohammad Soleimani, Ph.D., Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran, Tel: +98 251 7780001, Fax: +98 2517780001, E-mail:
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Ebadi M, Zolfaghari MR, Aghaei SS, Zargar M, Shafiei M, Zahiri HS, Noghabi KA. A bio-inspired strategy for the synthesis of zinc oxide nanoparticles (ZnO NPs) using the cell extract of cyanobacterium Nostoc sp. EA03: from biological function to toxicity evaluation. RSC Adv 2019; 9:23508-23525. [PMID: 35530580 PMCID: PMC9069274 DOI: 10.1039/c9ra03962g] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 07/17/2019] [Indexed: 12/16/2022] Open
Abstract
Cyanobacteria, as one of the largest groups of phototrophic bacteria, have a high potential as an excellent source of fine chemicals and bioactive compounds, including lipid-like compounds, amino acid derivatives, proteins, and pigments.
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Affiliation(s)
- Mojgan Ebadi
- Department of Microbiology
- Islamic Azad University
- Qom
- Iran
| | | | | | - Mohsen Zargar
- Department of Microbiology
- Islamic Azad University
- Qom
- Iran
| | - Morvarid Shafiei
- Microbiology Research Center (MRC)
- Pasteur Institute of Iran
- Tehran
- Iran
| | - Hossein Shahbani Zahiri
- Department of Energy & Environmental Biotechnology
- National Institute of Genetic Engineering and Biotechnology (NIGEB)
- Tehran
- Iran
| | - Kambiz Akbari Noghabi
- Department of Energy & Environmental Biotechnology
- National Institute of Genetic Engineering and Biotechnology (NIGEB)
- Tehran
- Iran
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Hasan Nasrollahi SM, Ghasemzadeh MA, Zolfaghari MR. Synthesis and Antibacterial Evaluation of Some New 1,4-Dihydropyridines in the Presence of Fe3O4@Silica Sulfonic Acid Nanocomposite as Catalyst. Acta Chim Slov 2018. [DOI: 10.17344/acsi.2017.3820] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Hasan Nasrollahi SM, Ghasemzadeh MA, Zolfaghari MR. Synthesis and Antibacterial Evaluation of Some New 1,4-Dihydropyridines in the Presence of Fe3O4@Silica Sulfonic Acid Nanocomposite as Catalyst. Acta Chim Slov 2018; 65:199-207. [PMID: 29562098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
The synthesis of heterocyclic compounds has been a topic of significant interest because of their broad applications. In this research an effective and eco-friendly approach for the synthesis 1,4-dihydropyridines has been developed via the four-component reactions of arylamines, acetylenedicarboxylates, aromatic aldehydes and ethyl acetoacetate in the presence of Fe3O4@SiO2@OSO3H nanocomposite under solvent-free conditions. The advantages of this method involve the green reaction conditions, simple workup, broad substrates, excellent yields and the reuse of the nanocatalyst. One of the indicators to measure antimicrobial activity is Minimum Inhibitory Concentrations (MIC) that this measure and heterocyclic compounds synthesis inhibition zone diameter was measured on examined bacteria using well diffusion, disc diffusion and determination of antibiotic susceptibility. The results of all three methods suggested the susceptibility of Staphylococcus aureus to synthesized heterocyclic compounds. It can be concluded from the results that these compounds have high antibiotic properties and can be useful in other research and biomedical applications.
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Shamsi M, Zolfaghari MR, Farnia P. Association of IFN-γ and P2X7 Receptor Gene Polymorphisms in Susceptibility to Tuberculosis Among Iranian Patients. Acta Microbiol Immunol Hung 2016; 63:93-101. [PMID: 27020872 DOI: 10.1556/030.63.2016.1.7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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] [Indexed: 11/19/2022]
Abstract
Interferon-gamma (IFN-γ) and P2X7 receptor are crucial for host defence against mycobacterial infections. Recent studies have indicated that IFN-γ, IFN-γ receptor 1 (IFN-γR1) andP2X7 gene polymorphisms are associated with susceptibility to pulmonary tuberculosis (TB). However, the relationship between IFN-γ and P2X7 polymorphism and TB susceptibility remains inconclusive in Iranian population. For this reason, single nucleotide polymorphisms (SNPs) in IFN-γ (G+2109A), IFN-γR1 (G-611A) and P2X7 genes (at -762, 1513 position) in patients (n = 100) were assessed using PCR-RFLP. Data were analysed with SPSS version 18. For the 2109 loci of IFN-γ gene, the frequency of mutant alleles between patients and controls were not statistically significant. However, there was a significant difference between the TB patient and controls for -611 alleles of IFN-γR1 (P = 0.01). Additionally, the frequency of P2X7 gene polymorphisms (SNP-762 and 1513) between patients and controls was statistically significant. In conclusions, our study revealed a significant association of IFN-γR1 and P2X7 genes polymorphisms with risk of developing TB in Iranian population.
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Affiliation(s)
- Mahdi Shamsi
- Mycobacteriology Research Centre, National Research Institute of Tuberculosis and Lung Disease, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | | | - Parissa Farnia
- Mycobacteriology Research Centre, National Research Institute of Tuberculosis and Lung Disease, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences , Tehran , Iran
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Abkar R, Zolfaghari MR, Arjomandzadegan M, Ahmadi A, Sadrnia M, Kahbazi M, Sarmadian H, Moaddab R. Minor Contribution of inhA-15 Mutations to the Rapid Detection of Isoniazid Resistance in Mycobacterium Tuberculosis Isolates. Iran J Med Sci 2016; 41:161-3. [PMID: 26989290 PMCID: PMC4764969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Roya Abkar
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | | | - Mohammad Arjomandzadegan
- Tuberculosis and Pediatric Infectious Research Center, Arak University of Medical Sciences, Arak, Iran,Correspondence: Mohammad Arjomandzadegan, PhD; Tuberculosis and Pediatric Infectious Research Center, Department of Microbiology, Sar-Dasht, Basij Square, 38481-7-6941, Arak, Iran Tel: +98 86 34173502 ,
| | - Azam Ahmadi
- Tuberculosis and Pediatric Infectious Research Center, Arak University of Medical Sciences, Arak, Iran
| | | | - Manijeh Kahbazi
- Tuberculosis and Pediatric Infectious Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Hossein Sarmadian
- Tuberculosis and Pediatric Infectious Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Reza Moaddab
- Medical Laboratory Sciences and Research Center for TB and Pulmonary Diseases, Tabriz University of Medical Sciences, Tabriz, Iran
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Zaer Ghodsi N, Zolfaghari MR, Fattah A. The Impact of High Intensity Interval Training On Lipid Profile, Inflammatory Markers and Anthropometric Parameters in Inactive Women. mljgoums 2016. [DOI: 10.18869/acadpub.mlj.10.1.56] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Ahmadi A, Nazari R, Arjomandzadegan M, Zolfaghari MR, Vahidi V, Poolad T, Kahbazi M, Sadrnia M, Tousheh M, Rafiee P. Insights into Pyrazinamidase and DNA Gyrase Protein Structures in Resistant and Susceptible Clinical Isolates of Mycobacterium tuberculosis. Tanaffos 2016; 15:147-153. [PMID: 28210279 PMCID: PMC5304958] [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] [Indexed: 12/03/2022]
Abstract
BACKGROUND Mutations in pncA and gyrA genes cause pyrazinamide (PZA) and fluroquinolone resistance in Mycobacterium tuberculosis (MTB). In the present study, structures of pyrazinamidase (PZase) and DNA gyrase proteins were studied in resistant and susceptible clinical isolates of MTB. MATERIALS AND METHODS Sixty clinical isolates of MTB were used in this study. Polymerase chain reaction (PCR) amplification of pncA and gyrA genes was accomplished on purified DNA. Sequence of the fragments was determined by an Applied BiosystemsTM apparatus. Bioinformatic analysis was performed by online software and three-dimensional (3D) structures of proteins was predicted using Molegro Virtual Docker (MVD) Modeler software. RESULTS Amplified 744 and 194 bp fragments of pncA and gyrA genes, respectively were yielded suitable sequence results. Predicted 3D structures of proteins showed some differences between wild-type and mutant structures. Mutation in amino acid No.31 (T92C) caused an increase in distance from metal ion position to enzyme active site, but it was considered as a polymorphism. Docking results by MVD revealed a relationship in quinolone resistance-determining regions (QRDR) amino acids in interaction with antibiotic. T92C mutation in PZase from non-polar aliphatic amino acid Ile (ATC) to polar aliphatic amino acid threonine (ACC) was a polymorphism. CONCLUSION Structural changes in two important proteins related to drug resistance were proven in clinical isolates of MTB.
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Affiliation(s)
- Azam Ahmadi
- Department of Molecular Genetics, Tarbiat Modares University,, Infectious Diseases Research Center (IDRC), Arak University of Medical Sciences, Arak, Iran
| | - Raziyeh Nazari
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | - Mohammad Arjomandzadegan
- Infectious Diseases Research Center (IDRC), Arak University of Medical Sciences, Arak, Iran,,Correspondence to: Arjomandzadegan M, Address: Infectious Diseases Research Center (IDRC), Department of Microbiology, Arak University of Medical Sciences, Arak, Iran, Email address:
| | | | - Vahideh Vahidi
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | - Toktam Poolad
- Infectious Diseases Research Center (IDRC), Arak University of Medical Sciences, Arak, Iran
| | - Manijeh Kahbazi
- Infectious Diseases Research Center (IDRC), Arak University of Medical Sciences, Arak, Iran
| | - Maryam Sadrnia
- Department of Biology, Payame Noor University, I.R. of Iran
| | - Mojtaba Tousheh
- Department of Cellular and Molecular Medicine, Isfahan University, Isfahan, Iran
| | - Pourya Rafiee
- Infectious Diseases Research Center (IDRC), Arak University of Medical Sciences, Arak, Iran
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Tajik Z, Keyvani H, Bokharaei-Salim F, Zolfaghari MR, Fakhim S, Keshvari M, Alavian SM. Detection of Hepatitis B Virus Covalently Closed Circular DNA in the Plasma of Iranian HBeAg-Negative Patients With Chronic Hepatitis B. Hepat Mon 2015; 15:e30790. [PMID: 26504471 PMCID: PMC4612772 DOI: 10.5812/hepatmon.30790] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 06/15/2015] [Revised: 08/16/2015] [Accepted: 08/30/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Covalently closed circular DNA (cccDNA) of hepatitis B virus (HBV) is a marker of HBV replication in the liver of patients infected with HBV. OBJECTIVES This study aimed to investigate the association between the presence of cccDNA in the plasma samples of Iranian treatment-naive patients with chronic hepatitis B infection and HBV viral load and HBsAg levels. PATIENTS AND METHODS From April 2012 to May 2015, 106 treatment-naive patients with chronic hepatitis B infection were enrolled in this cross-sectional study. The HBsAg titer was measured by the Roche HBsAg II assay on the Cobas e411 system, and HBV DNA quantitation was performed using the COBAS TaqMan 48 kit. Real-time polymerase chain reaction was performed for the detection of HBV cccDNA. RESULTS The mean (SD) age of the patients was 41.1 ± 12.4 years (range, 20 - 62 years). From a total of 106 study participants, 67 (63.2%) were males. The HBV cccDNA was detected in plasma specimens in 19 (17.9%) out of the total 106 patients, and a significant relationship was found between the presence of cccDNA in plasma sample of males (23.9%) and females (7.7%) (P = 0.039). Also, a significant correlation was found between the presence of cccDNA in plasma sample of the patients and HBV viral load level (P < 0.0001) and HBsAg titer (P = 0.0043). CONCLUSIONS This study showed that cccDNA can be detected in the plasma specimen of 17.9% of Iranian treatment-naive patients with chronic hepatitis B infection. Therefore, designing prospective studies focusing on the detection of cccDNA in these patients would provide more information.
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Affiliation(s)
- Zahra Tajik
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, Qom, IR Iran
| | - Hossein Keyvani
- Department of Virology, Iran University of Medical Sciences, Tehran, IR Iran
| | - Farah Bokharaei-Salim
- Department of Virology, Iran University of Medical Sciences, Tehran, IR Iran
- HIV Laboratory of National Center, Deputy of Health, Iran University of Medical Sciences, Tehran, IR Iran
- Corresponding Author: Farah Bokharaei-Salim, Department of Virology, Iran University of Medical Sciences, Tehran, IR Iran. Tel/Fax: +98-2188602205, E-mail:
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, Qom, IR Iran
| | - Shahin Fakhim
- Department of Civil Engineering, Faculty of Engineering, Payame Noor University, Karaj, IR Iran
| | - Maryam Keshvari
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, IR Iran
| | - Seyed Moayed Alavian
- Middle East Liver Disease Center, Tehran, IR Iran
- Iran Hepatitis Network, Tehran, IR Iran
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Spotin A, Rouhani S, Ghaemmaghami P, Haghighi A, Zolfaghari MR, Amirkhani A, Farahmand M, Bordbar A, Parvizi P. Different Morphologies of Leishmania major Amastigotes with No Molecular Diversity in a Neglected Endemic Area of Zoonotic Cutaneous Leishmaniasis in Iran. Iran Biomed J 2015; 19:149-59. [PMID: 26081070 PMCID: PMC4571010 DOI: 10.7508/ibj.2015.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Molecular diversity of Leishmania major and its morphological changes have become a controversial issue among researchers. Some aspects of polymorphic shapes of amastigotes in clinical manifestations along with molecular variation were evaluated among suspected patients of some exceptional zoonotic cutaneous leishmaniasis locations in Northern Khuzestan, Southwestern Iran. METHODS Suspected patients (n = 165) were sampled in zoonotic cutaneous leishmaniasis foci over two consecutive years during 2012-2014. Prepared smears were stained, scaled and measured by ocular micrometer. DNA was extracted from smears; ITS-rDNA and Cytochrome b (Cyt b) markers were amplified, and PCR products were digested by BsuR1 restriction enzyme. Then the RFLP and sequencing were employed. RESULTS Only L. major was identified in patients containing regular amastigotes' shapes (oval or round) with a size of 2-4 µm in each of classical wet, dry, mixed lesions. Meanwhile, irregular shapes (spindle, pear, or cigarette) were observed separately in non-classical wet lesions with more than 4 µm. Interestingly, a few amastigotes with an external flagellum were observed in some lesions. All sequenced ITS-rDNA and Cyt b genes of L. major did not show any molecular variation (χ 2 P > 0.05), including only one common haplotype (GenBank access no. EF413075). CONCLUSION Findings proved that unlike other endemic foci, there is not a meaningful correlation between phenotypic and genotypic features of L. major isolates. This study is considered as the first comprehensive report to incriminate morphometric shapes of L. major amastigotes, which enhances our knowledge concerning their relevance with various clinical appearances and genotypic traits.
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Affiliation(s)
- Adel Spotin
- Molecular Systematics Laboratory, Dept. of Parasitology, Pasteur Institute of Iran, Tehran, Iran.,Dept. of Parasitology, Medical Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Dept. of Parasitology, Medical Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soheila Rouhani
- Dept. of Parasitology, Medical Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parnazsadat Ghaemmaghami
- Molecular Systematics Laboratory, Dept. of Parasitology, Pasteur Institute of Iran, Tehran, Iran.,Dept. of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran
| | - Ali Haghighi
- Dept. of Parasitology, Medical Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Aref Amirkhani
- 5Dept. of Epidemiology, Medical
Sciences of Tehran branch, Islamic Azad University, Tehran, Iran
| | - Mahin Farahmand
- Molecular Systematics Laboratory, Dept. of Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Ali Bordbar
- Molecular Systematics Laboratory, Dept. of Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Parviz Parvizi
- Molecular Systematics Laboratory, Dept. of Parasitology, Pasteur Institute of Iran, Tehran, Iran
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Khalilian M, Zolfaghari MR, Soleimani M. High potential application in bioremediation of selenate by Proteus hauseri strain QW4. Iran J Microbiol 2015; 7:94-102. [PMID: 26622970 PMCID: PMC4662785] [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] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Selenium is essential for biological systems at low concentrations and toxic at higher levels. Heavy metals and metalloids such as selenium are major contaminants in 40% of hazardous waste sites. Thus, bioremediation has been considered as an effective means of cleaning up of selenium-contaminated sites. MATERIALS AND METHODS In this study, 30 strains were isolated from wastewater samples collected from selenium-contaminated sites in Qom, Iran using the enrichment culture technique. One bacterial strain designated QW4, identified as Proteus hauseri by morphological, biochemical and 16S rRNA gene sequencing was studied for its ability to tolerate different concentrations of sodium selenate (100-800 mM). Also, the disk diffusion method was performed to determine resistance to some antibiotics. RESULTS Strain QW4 showed maximum minimum inhibitory concentration (MIC) to selenate (760 mM). The maximum selenate removal was exhibited at 35 °C, while the removal activity reduced by 30.7% and 37% at 25 °C and 40 °C, respectively. The optimum pH and shaking incubator for removal activity was shown to be 7.0 and 150 rpm, with 60.2% and 60.3%, respectively. This bacterial strain was resistant to some antibiotics. CONCLUSION The concentration of toxic sodium selenate (1000 μg/ml) in the supernatant of the bacterial culture medium decreased by 100% after 2 days and the color of the medium changed to red due to the formation of less toxic elemental selenium. Also, our results imply that heavy metal pollution may contribute to increased antibiotic resistance through indirect selection.
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Affiliation(s)
- Mohaddeseh Khalilian
- Corresponding author: Mohaddeseh Khalilian, Address: Islamic Azad University, 15 Khordad Street, Qom, Iran. Tel: +98 9129175804, Fax: +98 2532611270,
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Shamsi M, Zolfaghari MR, Farnia P. Evaluation of p2x7 and IFN-γ gene polymorphisms in patients with pulmonary tuberculosis using PCR-RFLP method. Int J Mycobacteriol 2015. [DOI: 10.1016/j.ijmyco.2014.11.015] [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: 10/24/2022] Open
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Amiri N, Abiri R, Eyvazi M, Zolfaghari MR, Alvandi A. The frequency of Helicobacter pylori in dental plaque is possibly underestimated. Arch Oral Biol 2015; 60:782-8. [PMID: 25766471 DOI: 10.1016/j.archoralbio.2015.02.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 10/12/2014] [Revised: 01/08/2015] [Accepted: 02/10/2015] [Indexed: 02/09/2023]
Abstract
OBJECTIVE The commonest bacteria, causing infection across the world is Helicobacter pylori, which colonizes the human stomach. This bacteria has also been detected in some extra-gastric ecological niches such as the oral cavity and water. However, the results of H. pylori detection in extra-gastric ecological niche are controversial. The improvement of the sensitivity and the specificity of the detection methods appear to be some of the main bottleneck issues in providing compelling evidence. The aim of this study was to detect the presence of this organism in dental plaque samples using an analytically sensitive and specific Polymerase Chain Reaction (PCR) as well as a new nucleic acid detection method termed the Loop-mediated Isothermal Amplification (LAMP). DESIGN In a descriptive cross-sectional study 45 participants enrolled and dental plaque samples were collected from at least two teeth surfaces (one anterior and one posterior tooth) using a sterile periodontal curette. The DNA content was extracted from the samples and the presence of H. pylori was determined by PCR and LAMP reactions. RESULTS The frequency of detection of H. pylori in the dental plaque samples were 44% (20/45), 66.67% (30/45) and 77.78% (35/45) using PCR, LAMP and positivity for both tests, respectively. CONCLUSION The high frequency of H. pylori was detected in the dental plaque samples of the participants, which concurs with the high prevalence of this bacteria in the population. This is one of the highest reported rates around the world. The results reveal that dental plaque can be one of the main causes of re-infection and also be the cause of oral-oral transmission.
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Affiliation(s)
- Negin Amiri
- Department of Microbiology, Qom Branch, Islamic Azad University, Qom, Iran.
| | - Ramin Abiri
- Department of Microbiology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Masoumeh Eyvazi
- Department of Periodontics, Faculty of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | | | - Amirhooshang Alvandi
- Department of Microbiology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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39
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Sadoogh Abbasian S, Ghaznavi Rad E, Akbari N, Zolfaghari MR, pakzad I, Abtahi H. Overexpression and Enzymatic Assessment of Antigenic Fragments of Hyaluronidase Recombinant Protein From Streptococcus pyogenes. Jundishapur J Microbiol 2015; 8:e13653. [PMID: 25789122 PMCID: PMC4350047 DOI: 10.5812/jjm.13653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 07/17/2013] [Revised: 06/03/2014] [Accepted: 06/05/2014] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Hyaluronidase catalyzes the hydrolysis of hyaluronan polymers to N-acetyl-D-glucosamine and D-glucuronic acid. This enzyme is a dimer of identical subunits. Hyaluronidase has different pharmaceutical and medical applications. Previously, we produced a recombinant hyaluronidase antigenic fragment of Streptococcus pyogenes. OBJECTIVES This study aimed to improve the protein production and purity of hyaluronidase recombinant protein from S. pyogenes. In addition, the enzymatic activity of this protein was investigated. MATERIALS AND METHODS The expression of hyaluronidase antigenic fragments was optimized using IPTG concentration, time of induction, temperature, culture, and absorbance of 0.6-0.8-1 at 600 nm. Afterwards, the expressed proteins were purified and the enzymatic activity was assessed by turbid metric method. RESULTS Data indicated that maximum protein is produced in OD = 0.8, 0.5 mM Isopropyl β-D-1-thiogalactopyranoside (IPTG), 37ºC, NB 1.5x, without glucose, incubated for overnight. The enzymatic activity of the recombinant protein was similar to the commercial form of hyaluronidase. CONCLUSIONS The results showed that an antigenic fragment of the recombinant hyaluronidase protein from S. pyogenes has a considerable enzymatic activity. It can be suggested to use it for medical purposes. In addition, applications of bioinformatics software would facilitate the production of a smaller protein with same antigenic properties and enzymatic activity.
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Affiliation(s)
| | - Ehsanollah Ghaznavi Rad
- Department of Microbiology and Immunology, School of Medicine, Arak University of Medical Sciences, Arak, IR Iran
| | - Neda Akbari
- Department of Microbiology, Faculty of Science, Arak branch, Islamic Azad University, Arak, IR Iran
| | | | - Iraj pakzad
- Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam, IR Iran
| | - Hamid Abtahi
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, IR Iran
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Bordbar A, Soleimani S, Fardid F, Zolfaghari MR, Parvizi P. Three strains of Wolbachia pipientis and high rates of infection in Iranian sandfly species. Bull Entomol Res 2014; 104:195-202. [PMID: 24484966 DOI: 10.1017/s0007485313000631] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Individual wild-caught sandflies from Iran were examined for infections of Wolbachia pipientis by targeting the major surface protein gene wsp of this intracellular α-proteobacterium. In total, 638 male and female sandflies were screened, of which 241 were found to be positive for one of three wsp haplotypes. Regardless of geographical origins and habitats, Phlebotomus (Phlebotomus) papatasi and other sandfly species were found to be infected with one common, widespread strain of A-group W. pipientis (Turk 54, GenBank accession EU780683; AY288297). In addition, a new A-group haplotype (Turk07, GenBank accession KC576916) was isolated from Phlebotomus (Paraphlebotomus) mongolensis and Phlebotomus (Pa.) caucasicus, and a new B-group haplotype (AZ2331, GenBank accession JX488735) was isolated from Phlebotomus (Larroussius) perfiliewi. Therefore, Wolbachia was found to occur in at least three of the incriminated vectors of zoonotic cutaneous leishmaniasis and zoonotic visceral leishmaniasis in different geographical regions of Iran. It may provide a new tool for the future control of leishmaniasis.
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Affiliation(s)
- A Bordbar
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, Tehran, Iran
| | - S Soleimani
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, Tehran, Iran
| | - F Fardid
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, Tehran, Iran
| | - M R Zolfaghari
- Microbiology Department, Qom Branch, Islamic Azad University, Qom, Iran
| | - P Parvizi
- Molecular Systematics Laboratory, Parasitology Department, Pasteur Institute of Iran, Tehran, Iran
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Nanvazadeh F, Khosravi AD, Zolfaghari MR, Parhizgari N. Genotyping of Pseudomonas aeruginosa strains isolated from burn patients by RAPD-PCR. Burns 2013; 39:1409-13. [DOI: 10.1016/j.burns.2013.03.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 03/16/2013] [Accepted: 03/21/2013] [Indexed: 10/26/2022]
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Ghamari S, Alavian SM, Rizzetto M, Olivero A, Smedile A, Khedive A, Alavian SE, Zolfaghari MR, Jazayeri SM. Prevalence of hepatitis delta virus (HDV) infection in chronic hepatitis B patients with unusual clinical pictures. Hepat Mon 2013; 13:e6731. [PMID: 24098308 PMCID: PMC3787685 DOI: 10.5812/hepatmon.6731] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [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: 06/10/2012] [Revised: 06/29/2013] [Accepted: 07/15/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Probably 5% of the HBV carriers have HDV super infection. The risk of fulminant hepatitis, cirrhosis and hepatocellular carcinoma is higher in superinfection than the settings when HBV is alone. OBJECTIVES The aim of this study was to evaluate the prevalence of HDV in Iranian HBV isolates and to compare their clinical and virological pictures as well as their HDV genetic variations with other worldwide isolates. PATIENTS AND METHODS 81 carriers with positive results for HBsAg with upper limit ranges of ALT and low or undetectable levels of HBV viral load who did not respond to HBV therapy were selected. After RT amplification of HDV Delta antigen, direct sequencing and phylogenetic study were performed to explore the genotype(s) and nucleotide/amino acid variations. RESULTS 12 (14.8%) patients had positive results for both HDV RNA and anti-HDV. The mean ALT level was higher in HDV positive patients (75.9 U/ML) than HBV-mono-infected individuals; however, the mean HBV viral load was lower in coinfected patients than HBV-mono-infected patients. Phylogenetically, genotype I was the only detected genotype, and the most closely related isolates were of Turkish, Italian and Mongolian origin. Within the delta Ag, there were 326 nucleotide mutations, of which 111 and 215 were silent and missense, respectively. The total number of amino acid substitution was 148; most were located in known functional/epitopic domains. There was no correlation between the numbers of amino acid mutations, with clinical, virological status of the patients. CONCLUSIONS HDV should be suspected in HBV carriers with unusual clinical and virological pictures. Relatedness of Iranian HDV isolates to Italian and Turkish sequences proposed a common Caucasian origin for the distribution of HDV genotype I in this ethnic group.
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Affiliation(s)
- Shiva Ghamari
- Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Seyed Moayed Alavian
- Baqiyatallah University of Medical Sciences, Baqiyatallah Research Centre for Gastroenterology and Liver Disease, Tehran, IR Iran
- Middle East Liver Diseases Center, Tehran, IR Iran
| | - Mario Rizzetto
- Department of Gastroenterology and Hepatology, San Giovanni Battista University Hospital (Molinette), Turin, Italy
| | - Antonella Olivero
- Department of Gastroenterology and Hepatology, San Giovanni Battista University Hospital (Molinette), Turin, Italy
| | - Antonina Smedile
- Department of Gastroenterology and Hepatology, San Giovanni Battista University Hospital (Molinette), Turin, Italy
| | - Abulfazl Khedive
- Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Seyed Ehsan Alavian
- Baqiyatallah University of Medical Sciences, Baqiyatallah Research Centre for Gastroenterology and Liver Disease, Tehran, IR Iran
- Middle East Liver Diseases Center, Tehran, IR Iran
| | | | - Seyed Mohammad Jazayeri
- Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Seyed Mohammad Jazayeri, Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran. Tel/Fax: +98-2188992660, E-mail:
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Naderi M, Saeedi A, Moradi A, Kleshadi M, Zolfaghari MR, Gorji A, Ghaemi A. Interleukin-12 as a genetic adjuvant enhances hepatitis C virus NS3 DNA vaccine immunogenicity. Virol Sin 2013; 28:167-73. [PMID: 23709057 DOI: 10.1007/s12250-013-3291-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Accepted: 01/28/2013] [Indexed: 01/27/2023] Open
Abstract
Hepatitis C virus (HCV) chronic infection is a worldwide health problem, and numerous efforts have been invested to develop novel vaccines. An efficient vaccine requires broad immune response induction against viral proteins. To achieve this goal, we constructed a DNA vaccine expressing nonstructural 3 (NS3) gene (pcDNA3.1-HCV-NS3) and assessed the immune response in C57BL/6 mice. In this study, the NS3 gene was amplified with a nested-reverse transcriptase-polymerase chain reaction (RT-PCR) method using sera of HCV-infected patients with genotype 1a. The resulting NS3 gene was subcloned into a pcDNA3.1 eukaryotic expression vector, and gene expression was detected by western blot. The resultant DNA vaccine was co-administered with interleukin-12 (IL-12) as an adjuvant to female C57BL/6 mice. After the final immunizations, lymphocyte proliferation, cytotoxicity, and cytokine levels were assessed to measure immune responses. Our data suggest that co-administration of HCV NS3 DNA vaccine with IL-12 induces production of significant levels of both IL-4 and interferon (IFN)-γ (p<0.05). Cytotoxicity and lymphocyte proliferation responses of vaccinated mice were significantly increased compared to control (p<0.05). Collectively, our results demonstrated that co-administration of HCV NS3 and IL-12 displayed strong immunogenicity in a murine model.
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Affiliation(s)
- Malihe Naderi
- Department of Microbiology, Qom branch, Islamic Azad University, Qom 37185-364, Iran
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Soleimani M, Morovvati A, Hosseini SZ, Zolfaghari MR. Design of an improved multiplex PCR method for diagnosis of enterohaemoraghic E.coli and enteropathogic E.coli pathotypes. Gastroenterol Hepatol Bed Bench 2012; 5:106-11. [PMID: 24834209 PMCID: PMC4017461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2012] [Accepted: 02/15/2012] [Indexed: 11/07/2022]
Abstract
AIM We aimed to develop a multiplex PCR assay for specific detection of EPEC and EHEC pathotypes based on specific marker genes. BACKGROUND About 2.5 million infant's morbidity in developing countries occurs by E.coli pathotypes because of diarrhea and intestinal diseases. The traditional phenotypic methods are time consuming and sometimes detection and differentiation of the pathotypes are not done easily. Multiplex PCR technology is used as a sensitive, specific and rapid molecular method for detection of various pathogens. PATIENTS AND METHODS PCR reactions were performed with primers which targeted the virulence genes selected for each category (stx 1 , stx 2 genes for EHEC and bfpA for EPEC). For preparation of a positive control, the PCR products were cloned in pTZ57R/T plasmid. The same PCR reactions were done but in presence of genomes of various negative control bacteria for evaluation of test specificity. RESULTS As expected, gel agarose electrophoresis of PCR products of the stx 1 , stx 2 and bfpA, showed 329bp, 586bp and459bp bands respectively. Result of amplification using negative control genomes as template was negative. CONCLUSION The multiplex PCR assay followed by capillary electrophoresis presented in the present paper provides a simple, reliable, and rapid procedure that in a single reaction identifies the four main pathotypes of E. coli. This assay will replace the previous molecular genetics methods used in our laboratory and work as an important supplement to the more time consuming phenotypic assays.
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