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Bahadori Z, Shafaghi M, Sabzevari J, Madanchi H, Ranjbar MM, Mousavi SF, Shabani AA. Design, development, and assessment of a novel multi-peptide vaccine targeting PspC, PsaA, and PhtD proteins of Streptococcus pneumoniae. Int J Biol Macromol 2024; 258:128924. [PMID: 38143051 DOI: 10.1016/j.ijbiomac.2023.128924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 12/26/2023]
Abstract
Pneumococcus is the top cause of diseases such as pneumonia/meningitis, and of secondary infections after viral respiratory diseases like COVID-19/flu. Pneumococcal protein-based vaccines consisting of proteins with various functions in virulence might provide a qualified alternative for present vaccines. In this project, PspC, PsaA, and PhtD proteins were considered to anticipate B/T-cell epitopes using immunoinformatics to develop 4 multi-peptide constructs (C, A, and D individual constructs, and a fusion construct CAD). We tested whether vaccination with CAD is able to elicit more efficient protective responses against infection than vaccination with the individual constructs or combination of C + A + D. Based on the in silico results, the constructs were predicted to be antigenic, soluble, non-toxic, and stable, and also be able to provoke humoral/cellular immune reactions. When mice were immunized with the fusion protein, significantly higher levels of IgG and cytokines were induced in serum. The IgG in the fusion group had an effective bioactivity for pneumococcus clearance utilizing the complement pathway. The mice immunized with fusion protein were the most protected from challenge. This report for the first time presents a novel multi-peptide vaccine composed of immunodominant peptides of PspC, PsaA, and PhtD. In general, the experimental results supported the immunoinformatics predictions.
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Affiliation(s)
- Zohreh Bahadori
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran; Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran.
| | - Mona Shafaghi
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran; Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran.
| | - Jahangir Sabzevari
- Department of Microbiology and Microbial Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Hamid Madanchi
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran; Drug Design and Bioinformatics Unit, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran; Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Mohammad Mehdi Ranjbar
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education, and Extension Organization (AREEO), Karaj, Iran
| | | | - Ali Akbar Shabani
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
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Khodaverdi E, Shabani AA, Madanchi H, Farahmand L. Synthesis of the scFv fragment of anti-Frizzled-7 antibody and evaluation of its effects on triple-negative breast cancer in vitro study. Clin Transl Oncol 2024; 26:231-238. [PMID: 37310573 DOI: 10.1007/s12094-023-03242-1] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/31/2023] [Indexed: 06/14/2023]
Abstract
OBJECTIVES Among the most promising antibody formats in terms of inhibiting carcinogenesis are single-stranded variable fragments, whose targeted binding to the Fzd7 receptor has been proven effective at suppressing tumorigenesis. In this study, we investigated the effectiveness of an anti-Fzd7 antibody fragment against both tumor growth and metastasis of breast cancer cells. METHODS To develop anti-Fzd7 antibodies, bioinformatics approaches were used and the antibodies were expressed recombinantly in E. coli BL21 (DE3). The expression of anti-Fzd7 fragments was verified by Western blotting. Analysis of the antibody's binding capacity to Fzd7 was conducted by flow cytometry. Cell death and apoptosis were assessed by MTT and Annexin V/PI assays. The transwell migration and invasion assays, as well as the scratch method, were used to evaluate cell motility and invasiveness. RESULTS The anti-Fzd7 antibody was expressed successfully as a single band of 31 kDa. It could bind to 21.5% of MDA-MB-231 cells, as opposed to only 0.54% of SKBR-3 cells as negative control. According to MTT assay, induced apoptosis was 73.7% in MDA-MB-231 cells, compared with 29.5% in SKBR-3 cells. Also, the antibody exerted a significant inhibitory effect of 76% and 58% on migration and invasion of MDA-MB-231 cells, respectively. CONCLUSION The recombinantly developed anti-Fzd7 scFv of this study could exhibit significant antiproliferative and antimigratory properties, along with a high apoptosis-inducing potential, making it suitable for the immunotherapy of triple negative breast cancer.
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Affiliation(s)
- Ebrahim Khodaverdi
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Akbar Shabani
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
| | - Hamid Madanchi
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Drug Design and Bioinformatics Unit, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Leila Farahmand
- Recombinant Proteins Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran.
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Mousavi Maleki MS, Ebrahimi Kiasari R, Seyed Mousavi SJ, Hashemi-Moghaddam H, Shabani AA, Madanchi H, Sardari S. Bromelain-loaded nanocomposites decrease inflammatory and cytotoxicity effects of gliadin on Caco-2 cells and peripheral blood mononuclear cells of celiac patients. Sci Rep 2023; 13:21180. [PMID: 38040898 PMCID: PMC10692183 DOI: 10.1038/s41598-023-48460-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/27/2023] [Indexed: 12/03/2023] Open
Abstract
Enzyme therapy can be an appropriate treatment option for celiac disease (CeD). Here, we developed Bromelain-Loaded Nanocomposites (BLNCs) to improve the stability and retention of bromelain enzyme activity. After the characterization of BLNCs, the cytotoxicity of BLNCs was determined on the Caco-2 cell line. The effect of BLNCs on gliadin degradation and the production of pro-inflammatory cytokines and anti-inflammatory molecules in peripheral blood mononuclear cells (PBMCs) obtained from celiac patients were assessed. Furthermore, the expression of CXCR3 and CCR5 genes was measured in CaCo-2 cells treated with gliadin, gliadin-digested with BLNCs, and bromelain. Our study demonstrated that the Bromelain entrapment efficiency in these nanoparticles was acceptable, and BLNCs have no toxic effect on cells. SDS-PAGE confirmed the digestion effect of bromelain released from nanocomposites. When Caco-2 cells were treated with gliadin digested by free bromelain and BLNCs, the expression of CXCR3 and CCR5 genes was significantly decreased. PBMCs of celiac patients treated with Bromelain and BLNCs decreased inflammatory cytokines (IL-1β, IL-6, TNF-α, and IFN-γ) production compared to untreated PBMCs. This treatment also increased IL-10 and CTLA-4 in PBMCs of CeD patients. According to the promising results of this study, we can hope for the therapeutic potential of BLNCs for CeD.
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Affiliation(s)
- Masoumeh Sadat Mousavi Maleki
- Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, 35131-38111, Iran
- Gene Therapy and Regenerative Medicine Research Center, Hope Generation Foundation, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Ramin Ebrahimi Kiasari
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13198, Iran
| | - Seyed Javad Seyed Mousavi
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13198, Iran
| | | | - Ali Akbar Shabani
- Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, 35131-38111, Iran
| | - Hamid Madanchi
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran.
- Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, 35131-38111, Iran.
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13198, Iran.
| | - Soroush Sardari
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, 13198, Iran.
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Shafaghi M, Bahadori Z, Barzi SM, Afshari E, Madanchi H, Mousavi SF, Shabani AA. A new candidate epitope-based vaccine against PspA PhtD of Streptococcus pneumoniae: a computational experimental approach. Front Cell Infect Microbiol 2023; 13:1271143. [PMID: 38035337 PMCID: PMC10684780 DOI: 10.3389/fcimb.2023.1271143] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/26/2023] [Indexed: 12/02/2023] Open
Abstract
Introduction Pneumococcus is an important respiratory pathogen that is associated with high rates of death in newborn children and the elderly. Given the disadvantages of current polysaccharide-based vaccines, the most promising alternative for developing improved vaccines may be to use protein antigens with different roles in pneumococcus virulence. PspA and PhtD, highly immunogenic surface proteins expressed by almost all pneumococcal strains, are capable of eliciting protective immunity against lethal infections. Methods In this study using immunoinformatics approaches, we constructed one fusion construct (called PAD) by fusing the immunodominant regions of PspA from families 1 & 2 (PA) to the immunodominant regions of PhtD (PD). The objective of this project was to test the immunogenicity of the fusion protein PAD and to compare its protective activity against S. pneumoniae infection with PA or PD alone and a combination of PA and PD. The prediction of physicochemical properties, antigenicity, allergenicity, toxicity, and 3D-structure of the constructs, as well as molecular docking with HLA receptor and immune simulation were performed using computational tools. Finally, mice were immunized and the serum levels of antibodies/cytokines and functionality of antibodies in vitro were evaluated after immunization. The mice survival rates and decrease of bacterial loads in the blood/spleen were examined following the challenge. Results The computational analyses indicated the proposed constructs could be antigenic, non-allergenic, non-toxic, soluble and able to elicit robust immune responses. The results of actual animal experiments revealed the candidate vaccines could induce the mice to produce high levels of antibodies and cytokines. The complement-mediated bactericidal activity of antibodies was confirmed and the antibodies provided favorable survival in immunized mice after bacterial challenge. In general, the experimental results verified the immunoinformatics studies. Conclusion For the first time this report presents novel peptide-based vaccine candidates consisting of immunodominant regions of PspA and PhtD antigens. The obtained findings confirmed that the fusion formulation could be relatively more efficient than the individual and combination formulations. The results propose that the fusion protein alone could be used as a serotype-independent pneumococcal vaccine or as an effective partner protein for a conjugate polysaccharide vaccine.
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Affiliation(s)
- Mona Shafaghi
- Department of Medical Biotechnology, faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Zohreh Bahadori
- Department of Medical Biotechnology, faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | | | - Elnaz Afshari
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hamid Madanchi
- Department of Medical Biotechnology, faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | | | - Ali Akbar Shabani
- Department of Medical Biotechnology, faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
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Mousavi Maleki MS, Aghamirza Moghim Ali Abadi H, Vaziri B, Shabani AA, Ghavami G, Madanchi H, Sardari S. Bromelain and ficin proteolytic effects on gliadin cytotoxicity and expression of genes involved in cell-tight junctions in Caco-2 cells. Amino Acids 2023; 55:1601-1619. [PMID: 37803248 DOI: 10.1007/s00726-023-03333-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/11/2023] [Indexed: 10/08/2023]
Abstract
Enzyme therapy for celiac disease (CeD), which digests gliadin into non-immunogenic and non-toxic peptides, can be an appropriate treatment option for CeD. Here, we have investigated the effectiveness of bromelain and ficin on gliadin digestion using in vitro, such as SDS-PAGE, HPLC, and circular dichroism (CD). Furthermore, the cytotoxicity of gliadin and 19-mer peptide before and after digestion with these enzymes was evaluated using the MTT assay in the Caco-2 cell line. Finally, we examined the effect of these treatments along with Larazotide Acetate on the expression of genes involved in cell-tight junctions, such as Occludin, Claudin 3, tight junction protein-1, and Zonulin in the Caco-2 cell line. Our study demonstrated bromelain and ficin digestion effects on the commercial and wheat-extracted gliadin by SDS-PAGE, HPLC, and CD. Also, the cytotoxicity results on Caco-2 showed that toxicity of the gliadin and synthetic 19-mer peptide was decreased by adding bromelain and ficin. Furthermore, the proteolytic effects of bromelain and ficin on gliadin indicated the expression of genes involved in cell-tight junctions was improved. This study confirms that bromelain and ficin mixture could be effective in improving the symptoms of CeD.
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Affiliation(s)
- Masoumeh Sadat Mousavi Maleki
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran
| | | | - Behrooz Vaziri
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Ali Akbar Shabani
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Ghazaleh Ghavami
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, 13198, Tehran, Iran
| | - Hamid Madanchi
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran.
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, 13198, Tehran, Iran.
| | - Soroush Sardari
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, 13198, Tehran, Iran.
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Nabizadeh Z, Nasrollahzadeh M, Shabani AA, Mirmohammadkhani M, Nasrabadi D. Evaluation of the anti-inflammatory activity of fisetin-loaded nanoparticles in an in vitro model of osteoarthritis. Sci Rep 2023; 13:15494. [PMID: 37726323 PMCID: PMC10509168 DOI: 10.1038/s41598-023-42844-1] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 09/15/2023] [Indexed: 09/21/2023] Open
Abstract
Cartilage lesions, especially osteoarthritis (OA), are a common health problem, causing pain and disability in various age groups, principally in older adults and athletes. One of the main challenges to be considered in cartilage tissue repair is the regeneration of cartilage tissue in an active inflammatory environment. Fisetin has various biological effects including anti-inflammatory, antioxidant, apoptotic, and antiproliferative activities. The only disadvantages of fisetin in the pharmaceutical field are its instability and low solubility in aqueous media. This study is aimed at preparing chitosan (CS)-based nanoparticles to yield fisetin with improved bioavailability features. Then, the effect of fisetin-loaded nanoparticles (FNPs) on inflammatory responses in interleukin-1β (IL-1β) pretreated human chondrocytes has also been investigated. FNPs presented an average size of 363.1 ± 17.2 nm and a zeta potential of + 17.7 ± 0.1 mV with encapsulation efficiency (EE) and loading capacity (LC) of 78.79 ± 7.7% and 37.46 ± 6.6%, respectively. The viability of human chondrocytes was not affected by blank nanoparticles (BNPs) up to a concentration of 2000 μg/mL. In addition, the hemolysis results clearly showed that FNPs did not damage the red blood cells (RBCs) and had good hemocompatibility within the range investigated. FNPs, similar to fisetin, were able to inhibit the inflammatory responses induced by IL-1β such as the expression of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) while increasing the production of an anti-inflammatory cytokine such as interleukin-10 (IL-10). Overall, the in vitro evaluation results of the anti-inflammatory activity showed that FNPs can serve as delivery systems to transfer fisetin to treat inflammation in OA.
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Affiliation(s)
- Zahra Nabizadeh
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Mahmoud Nasrollahzadeh
- Department of Chemistry, Faculty of Science, University of Qom, P.O. Box 37185-359, Qom, Iran
| | - Ali Akbar Shabani
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Majid Mirmohammadkhani
- Department of Epidemiology and Biostatistics, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Davood Nasrabadi
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
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Shafaghi M, Bahadori Z, Madanchi H, Ranjbar MM, Shabani AA, Mousavi SF. Immunoinformatics-aided design of a new multi-epitope vaccine adjuvanted with domain 4 of pneumolysin against Streptococcus pneumoniae strains. BMC Bioinformatics 2023; 24:67. [PMID: 36829109 PMCID: PMC9951839 DOI: 10.1186/s12859-023-05175-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 12/26/2022] [Accepted: 02/06/2023] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND Streptococcus pneumoniae (Pneumococcus) has remained a leading cause of fatal infections such as pneumonia, meningitis, and sepsis. Moreover, this pathogen plays a major role in bacterial co-infection in patients with life-threatening respiratory virus diseases such as influenza and COVID-19. High morbidity and mortality in over one million cases, especially in very young children and the elderly, are the main motivations for pneumococcal vaccine development. Due to the limitations of the currently marketed polysaccharide-based vaccines, non-serotype-specific protein-based vaccines have received wide research interest in recent years. One step further is to identify high antigenic regions within multiple highly-conserved proteins in order to develop peptide vaccines that can affect various stages of pneumococcal infection, providing broader serotype coverage and more effective protection. In this study, immunoinformatics tools were used to design an effective multi-epitope vaccine in order to elicit neutralizing antibodies against multiple strains of pneumococcus. RESULTS The B- and T-cell epitopes from highly protective antigens PspA (clades 1-5) and PhtD were predicted and immunodominant peptides were linked to each other with proper linkers. The domain 4 of Ply, as a potential TLR4 agonist adjuvant candidate, was attached to the end of the construct to enhance the immunogenicity of the epitope vaccine. The evaluation of the physicochemical and immunological properties showed that the final construct was stable, soluble, antigenic, and non-allergenic. Furthermore, the protein was found to be acidic and hydrophilic in nature. The protein 3D-structure was built and refined, and the Ramachandran plot, ProSA-web, ERRAT, and Verify3D validated the quality of the final model. Molecular docking analysis showed that the designed construct via Ply domain 4 had a strong interaction with TLR4. The structural stability of the docked complex was confirmed by molecular dynamics. Finally, codon optimization was performed for gene expression in E. coli, followed by in silico cloning in the pET28a(+) vector. CONCLUSION The computational analysis of the construct showed acceptable results, however, the suggested vaccine needs to be experimentally verified in laboratory to ensure its safety and immunogenicity.
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Affiliation(s)
- Mona Shafaghi
- grid.486769.20000 0004 0384 8779Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran ,grid.486769.20000 0004 0384 8779Research Center of Biotechnology, Semnan University of Medical Sciences, Semnan, Iran ,grid.420169.80000 0000 9562 2611Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Zohreh Bahadori
- grid.486769.20000 0004 0384 8779Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran ,grid.486769.20000 0004 0384 8779Research Center of Biotechnology, Semnan University of Medical Sciences, Semnan, Iran ,grid.420169.80000 0000 9562 2611Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Hamid Madanchi
- grid.486769.20000 0004 0384 8779Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran ,grid.486769.20000 0004 0384 8779Research Center of Biotechnology, Semnan University of Medical Sciences, Semnan, Iran ,grid.420169.80000 0000 9562 2611Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Mohammad Mehdi Ranjbar
- grid.418970.3Agricultural Research, Education, and Extension Organization (AREEO), Razi Vaccine and Serum Research Institute, Karaj, Iran
| | - Ali Akbar Shabani
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran. .,Research Center of Biotechnology, Semnan University of Medical Sciences, Semnan, Iran.
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Bahadori Z, Shafaghi M, Madanchi H, Ranjbar MM, Shabani AA, Mousavi SF. In silico designing of a novel epitope-based candidate vaccine against Streptococcus pneumoniae with introduction of a new domain of PepO as adjuvant. J Transl Med 2022; 20:389. [PMID: 36059030 PMCID: PMC9440865 DOI: 10.1186/s12967-022-03590-6] [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: 02/14/2022] [Accepted: 08/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Streptococcus pneumoniae is the leading reason for invasive diseases including pneumonia and meningitis, and also secondary infections following viral respiratory diseases such as flu and COVID-19. Currently, serotype-dependent vaccines, which have several insufficiency and limitations, are the only way to prevent pneumococcal infections. Hence, it is plain to need an alternative effective strategy for prevention of this organism. Protein-based vaccine involving conserved pneumococcal protein antigens with different roles in virulence could provide an eligible alternative to existing vaccines. METHODS In this study, PspC, PhtD and PsaA antigens from pneumococcus were taken to account to predict B-cell and helper T-cell epitopes, and epitope-rich regions were chosen to build the construct. To enhance the immunogenicity of the epitope-based vaccine, a truncated N-terminal fragment of pneumococcal endopeptidase O (PepO) was used as a potential TLR2/4 agonist which was identified by molecular docking studies. The ultimate construct was consisted of the chosen epitope-rich regions, along with the adjuvant role (truncated N-PepO) and suitable linkers. RESULTS The epitope-based vaccine was assessed as regards physicochemical properties, allergenicity, antigenicity, and toxicity. The 3D structure of the engineered construct was modeled, refined, and validated. Molecular docking and simulation of molecular dynamics (MD) indicated the proper and stable interactions between the vaccine and TLR2/4 throughout the simulation periods. CONCLUSIONS For the first time this work presents a novel vaccine consisting of epitopes of PspC, PhtD, and PsaA antigens which is adjuvanted with a new truncated domain of PepO. The computational outcomes revealed that the suggested vaccine could be deemed an efficient therapeutic vaccine for S. pneumoniae; nevertheless, in vitro and in vivo examinations should be performed to prove the potency of the candidate vaccine.
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Affiliation(s)
- Zohreh Bahadori
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.,Research Center of Biotechnology, Semnan University of Medical Sciences, Semnan, Iran.,Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Mona Shafaghi
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.,Research Center of Biotechnology, Semnan University of Medical Sciences, Semnan, Iran.,Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Hamid Madanchi
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.,Research Center of Biotechnology, Semnan University of Medical Sciences, Semnan, Iran.,Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Mohammad Mehdi Ranjbar
- Agricultural Research, Education, and Extension Organization (AREEO), Razi Vaccine and Serum Research Institute, Karaj, Iran
| | - Ali Akbar Shabani
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran. .,Research Center of Biotechnology, Semnan University of Medical Sciences, Semnan, Iran.
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Namvar Arabani S, Madanchi H, Ajoudanifar H, Shabani AA. Evaluation of Antibacterial, Antifungal, and Cytotoxicity Effects of CecropinA-Magenin2 (CE-MA) Peptide and Its Truncated Derivatives and Study of Their Action Mechanism. Int J Pept Res Ther 2022. [DOI: 10.1007/s10989-022-10433-x] [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: 10/17/2022]
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10
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Nabizadeh Z, Nasrollahzadeh M, Daemi H, Baghaban Eslaminejad M, Shabani AA, Dadashpour M, Mirmohammadkhani M, Nasrabadi D. Micro- and nanotechnology in biomedical engineering for cartilage tissue regeneration in osteoarthritis. Beilstein J Nanotechnol 2022; 13:363-389. [PMID: 35529803 PMCID: PMC9039523 DOI: 10.3762/bjnano.13.31] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 03/24/2022] [Indexed: 05/12/2023]
Abstract
Osteoarthritis, which typically arises from aging, traumatic injury, or obesity, is the most common form of arthritis, which usually leads to malfunction of the joints and requires medical interventions due to the poor self-healing capacity of articular cartilage. However, currently used medical treatment modalities have reported, at least in part, disappointing and frustrating results for patients with osteoarthritis. Recent progress in the design and fabrication of tissue-engineered microscale/nanoscale platforms, which arises from the convergence of stem cell research and nanotechnology methods, has shown promising results in the administration of new and efficient options for treating osteochondral lesions. This paper presents an overview of the recent advances in osteochondral tissue engineering resulting from the application of micro- and nanotechnology approaches in the structure of biomaterials, including biological and microscale/nanoscale topographical cues, microspheres, nanoparticles, nanofibers, and nanotubes.
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Affiliation(s)
- Zahra Nabizadeh
- Department of Medical Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Biotechnology Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | | | - Hamed Daemi
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cell and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Ali Akbar Shabani
- Department of Medical Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Biotechnology Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Mehdi Dadashpour
- Department of Medical Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Biotechnology Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Majid Mirmohammadkhani
- Department of Epidemiology and Biostatistics, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Davood Nasrabadi
- Department of Medical Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Biotechnology Research Center, Semnan University of Medical Sciences, Semnan, Iran
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11
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Bahadori Z, Shabani AA, Minuchehr Z. Rational design of hyper-glycosylated human follicle-stimulating hormone analogs (a bioinformatics approach). J Biomol Struct Dyn 2021; 40:9114-9125. [PMID: 33998969 DOI: 10.1080/07391102.2021.1924268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
N-glycosylation is a complex mechanism in which the carbohydrate molecules bind to the Asn amino acid in the N-glycan consensus sequence (AsnXxxThr/Ser sequon, where Xxx is any residue, excluding Pro). Introduction of additional N-linked glycosylation site into proposed location in the protein causes to its hyper-glycosylation and can enhance the protein characteristics to provide promising prospects in treatment. Glycoengineering is a favorably used strategy to design and generate hyper-glycosylated variants. In this research, human follicle-stimulating hormone (HuFSH) was considered to identify appropriate positions for adding novel N-glycan sites. A rational computational strategy was applied to predict functional/structural variations induced through changes in polypeptide chain. We analyzed the amino acid chain of FSH to find out the proper locations to introduce asparagine and/or threonine for creating novel N-glycan positions. This analysis resulted in the recognition of 40 possible N-glycosylation positions, and then the eight adequate ones were chosen for additional investigation. The model validation techniques were used to examine 3-dimensional structures of the chosen mutant proteins. Finally, 2 mutants with a further glycan site were recommended as eligible FSH hyper-glycosylated analogs, which may be regarded for subsequent experimental studies. Our in silico approach may decrease tedious and time-wasting laboratory researches of the mutants.Communicated by Ramaswamy H. Sharma.
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Affiliation(s)
- Zohreh Bahadori
- Department of Biotechnology and Biotechnology Research Center, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran.,Students Research Committee, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Akbar Shabani
- Department of Biotechnology and Biotechnology Research Center, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Zarrin Minuchehr
- Department of Systems Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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12
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Namvar Erbani S, Madanchi H, Ajodani Far H, Rostamian M, Rahmati S, Shabani AA. First report of antifungal activity of CecropinA-Magenin2 (CE-MA) hybrid peptide and its truncated derivatives. Biochem Biophys Res Commun 2021; 549:157-163. [PMID: 33676184 DOI: 10.1016/j.bbrc.2021.02.106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 02/22/2021] [Indexed: 11/25/2022]
Abstract
The use of natural antimicrobial peptides (AMPs) is limited. Modifications of peptides by in silico predictions and computational methods can lead to more accurate designs and reducing their high synthesis costs, instability, and cytotoxicity. In this study, the antifungal properties of CecropinA-Magenin2 (CE-MA) hybrid peptide and its truncated derivatives were evaluated. Eleven C-terminal-truncated derivatives were designed and three of them with 10, 8 and 6 residues namely CMt1, CMt2 and CMt3 were selected through an initial screening based on the prediction of antimicrobial and antifungal activities, toxicity and physicochemical properties. These derivatives and the parental CE-MA peptide were synthesized. Then, based on molecular docking studies, antimicrobial tests and cytotoxicity assays, CMt1 peptide was selected for further studies such as time of killing, combinatorial effects with other drugs and the mechanism of action. The results showed that CE-MA is a weak antifungal peptide but its truncated derivative, CMt1 showed a strong antifungal activity with less toxicity. The results of the ergosterol assay, confocal microscopy and FE-SEM studies indicated that invasion to cell wall and membrane components were the main antifungal mechanisms of CMt1 peptide. Altogether, here we introduce a new truncated peptide with a strong antifungal activity with less toxicity which can be a good candidate for further in vivo and clinical studies to be used as an antifungal drug.
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Affiliation(s)
| | - Hamid Madanchi
- Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran; Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
| | - Hatef Ajodani Far
- Department of Biology, Damghan Branch, Islamic Azad University, Damghan, Iran.
| | - Mosayeb Rostamian
- Infectious Diseases Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Saman Rahmati
- Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Ali Akbar Shabani
- Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
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13
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Abstract
Background:Protein pharmaceuticals routinely display a series of intrinsic physicochemical instabilities during their production and administration that can unfavorably affect their therapeutic effectiveness. Glycoengineering is one of the most desirable techniques to improve the attributes of therapeutic proteins. One aspect of glycoengineering is the rational manipulation of the peptide backbone to introduce new N-glycosylation consensus sequences (Asn-X-Ser/Thr, where X is any amino acid except proline).Methods:In this work, the amino acid sequence of human chorionic gonadotropin (hCG) was analyzed to identify suitable positions in order to create new N-glycosylation sites. This survey led to the detection of 46 potential N-glycosylation sites. The N-glycosylation probability of all the potential positions was measured with the NetNGlyc 1.0 server. After theoretical reviews and the removal of unsuitable positions, the five acceptable ones were selected for more analyses. Then, threedimensional (3D) structures of the selected analogs were generated and evaluated by SPDBV software. The molecular stability and flexibility profile of five designed analogs were examined using Molecular Dynamics (MD) simulations.Results:Finally, three analogs with one additional N-glycosylation site (V68T, V79N and R67N) were proposed as the qualified analogs that could be glycosylated at the new sites.Conclusion:According to the results of this study, further experimental investigations could be guided on the three analogs. Therefore, our computational strategy can be a valuable method due to the reduction in the number of the expensive, tiresome and time-consuming experimental studies of hCG analogs.
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Affiliation(s)
- Zahra Nabizadeh
- Dept. and Center for Biotechnology Research, Semnan University of Medical Sciences, Semnan, Iran
| | - Zarrin Minuchehr
- Department of Systems Biotechnology, Institute of Industrial and Environmental Biotechnology (IIEB), National Institute for Genetic Engineering and Biotechnology (NIGEB), P.O. Box 14965/161, Tehran, Iran
| | - Ali Akbar Shabani
- Dept. and Center for Biotechnology Research, Semnan University of Medical Sciences, Semnan, Iran
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Madanchi H, Ebrahimi Kiasari R, Seyed Mousavi SJ, Johari B, Shabani AA, Sardari S. Design and Synthesis of Lipopolysaccharide-Binding Antimicrobial Peptides Based on Truncated Rabbit and Human CAP18 Peptides and Evaluation of Their Action Mechanism. Probiotics Antimicrob Proteins 2020; 12:1582-1593. [DOI: 10.1007/s12602-020-09648-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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15
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Madanchi H, Sardari S, Shajiee H, Taherian S, Ashkar M, Johari B, Shabani AA, Sharafi S. Design of new truncated derivatives based on direct and reverse mirror repeats of first six residues of Caerin 4 antimicrobial peptide and evaluation of their activity and cytotoxicity. Chem Biol Drug Des 2020; 96:801-811. [DOI: 10.1111/cbdd.13689] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 03/03/2020] [Accepted: 03/14/2020] [Indexed: 12/26/2022]
Affiliation(s)
- Hamid Madanchi
- Department of Biotechnology School of Medicine Semnan University of Medical Sciences Semnan Iran
- Drug Design and Bioinformatics Unit Department of Medical Biotechnology Biotechnology Research Center Pasteur Institute of Iran Tehran Iran
| | - Soroush Sardari
- Drug Design and Bioinformatics Unit Department of Medical Biotechnology Biotechnology Research Center Pasteur Institute of Iran Tehran Iran
| | - Hooman Shajiee
- Damghan Branch Department of Biology Islamic Azad University Damghan Iran
| | - Sina Taherian
- Damghan Branch Department of Biology Islamic Azad University Damghan Iran
| | - Maryam Ashkar
- Damghan Branch Department of Biology Islamic Azad University Damghan Iran
| | - Behrooz Johari
- Department of Medical Biotechnology School of Medicine Zanjan University of Medical Sciences Zanjan Iran
| | - Ali Akbar Shabani
- Department of Biotechnology School of Medicine Semnan University of Medical Sciences Semnan Iran
| | - Shahram Sharafi
- Damghan Branch Department of Biology Islamic Azad University Damghan Iran
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Madanchi H, Khalaj V, Jang S, Shabani AA, Ebrahimi Kiasari R, Seyed Mousavi SJ, Kazemi Sealani S, Sardari S. AurH1: a new heptapeptide derived from Aurein1.2 antimicrobial peptide with specific and exclusive fungicidal activity. J Pept Sci 2019; 25:e3175. [DOI: 10.1002/psc.3175] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 04/29/2019] [Accepted: 05/01/2019] [Indexed: 02/05/2023]
Affiliation(s)
- Hamid Madanchi
- Department and Center for Biotechnology ResearchSemnan University of Medical Sciences Semnan Iran
- Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research CenterPasteur Institute of Iran Tehran Iran
| | - Vahid Khalaj
- Department of Medical Biotechnology, Biotechnology Research CenterPasteur Institute of Iran Tehran Iran
| | - Soojin Jang
- Antibacterial Resistance Laboratory, Department of Discovery BiologyInstitut Pasteur Korea Gyeonggi‐do Republic of Korea
| | - Ali Akbar Shabani
- Department and Center for Biotechnology ResearchSemnan University of Medical Sciences Semnan Iran
| | | | | | | | - Soroush Sardari
- Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research CenterPasteur Institute of Iran Tehran Iran
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Shafaghi M, Shabani AA, Minuchehr Z. Rational design of hyper-glycosylated human luteinizing hormone analogs (a bioinformatics approach). Comput Biol Chem 2019; 79:16-23. [PMID: 30708139 DOI: 10.1016/j.compbiolchem.2019.01.002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 12/29/2018] [Accepted: 01/02/2019] [Indexed: 01/09/2023]
Abstract
Glycoengineering is a recently used approach to extend serum half-life of valuable protein therapeutics. One aspect of glycoengineering is to introduce new N-glycosylation site (Asn-X-Thr/Ser, where X ≠ Pro) into desirable positions in the peptide backbone, resulting in the generation of hyper-glycosylated protein. In this study, human luteinizing hormone (LH) was considered for identification of the suitable positions for the addition of new N-linked glycosylation sites. A rational in silico approach was applied for prediction of structural and functional alterations caused by changes in amino acid sequence. As the first step, we explored the amino acid sequence of LH to find out desirable positions for introducing Asn or/and Thr to create new N-glycosylation sites. This exploration led to the identification of 38 potential N-glycan sites, and then the four acceptable ones were selected for further analysis. Three-dimensional (3D) structures of the selected analogs were generated and examined by the model evaluation methods. Finally, two analogs with one additional glycosylation site were suggested as the qualified analogs for hyper-glycosylation of the LH, which can be considered for further experimental investigations. Our computational strategy can reduce laborious and time-consuming experimental analyses of the analogs.
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Affiliation(s)
- Mona Shafaghi
- Dept. & Center for Biotechnology Research, Semnan University of Medical Sciences, Semnan, Iran; Students Research Committee, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Akbar Shabani
- Dept. & Center for Biotechnology Research, Semnan University of Medical Sciences, Semnan, Iran.
| | - Zarrin Minuchehr
- Department of Systems Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
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18
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Madanchi H, Akbari S, Shabani AA, Sardari S, Farmahini Farahani Y, Ghavami G, Ebrahimi Kiasari R. Alignment-based design and synthesis of new antimicrobial Aurein-derived peptides with improved activity against Gram-negative bacteria and evaluation of their toxicity on human cells. Drug Dev Res 2018; 80:162-170. [DOI: 10.1002/ddr.21503] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/05/2018] [Accepted: 11/16/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Hamid Madanchi
- Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center; Pasteur Institute of Iran; Tehran Iran
| | - Shabnam Akbari
- Department of Biology, Damghan Branch; Islamic Azad University; Damghan Iran
| | - Ali Akbar Shabani
- Department and Center for Biotechnology Research; Semnan University of Medical Sciences; Semnan Iran
| | - Soroush Sardari
- Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center; Pasteur Institute of Iran; Tehran Iran
| | - Yekta Farmahini Farahani
- Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center; Pasteur Institute of Iran; Tehran Iran
| | - Ghazaleh Ghavami
- Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center; Pasteur Institute of Iran; Tehran Iran
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Kalhor H, Poorebrahim M, Rahimi H, Shabani AA, Karimipoor M, Akbari Eidgahi MR, Teimoori-Toolabi L. Structural and dynamic characterization of human Wnt2-Fzd7 complex using computational approaches. J Mol Model 2018; 24:274. [PMID: 30191337 DOI: 10.1007/s00894-018-3788-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 10/13/2017] [Accepted: 08/09/2018] [Indexed: 12/20/2022]
Abstract
Wnt and Frizzled (Fzd) family members play crucial roles in the self-renewal of tumor-initiating cells. Until now, only a few studies have addressed the distinct mechanism of Wnt-Fzd interactions. In this study, we suggest a possible interaction mode of Wnt2 with the Fzd7 cysteine-rich domain (CRD)-both of which are up-regulated in some types of cancer. A combination of homology modeling, molecular docking and molecular dynamics (MD) simulations was carried out to study this ligand-receptor complex in great detail. The results demonstrated the unique dynamic behavior of Wnt2 upon binding to Fzd7. Interestingly, the β-strand content of the C-terminal binding site of Wnt2 was obviously reduced when bound to Fzd7 CRD. Moreover, the N-terminal and C-terminal binding sites of Wnt2 appeared to interact with the C-terminal and N-terminal binding sites of Fzd7, respectively. Calculation of the binding energies uncovered the pivotal role of electrostatic and hydrophobic interactions in the binding of Wnt2 to Fzd7 CRD. In conclusion, this study provides valuable insights into the mechanism of the Wnt2-Fzd7 CRD interaction for application in colorectal cancer prevention programs. Graphical abstract Flowchart representation of different steps used in this study.
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Affiliation(s)
- Hourieh Kalhor
- Department and Biotechnology Research Center, Semnan University of Medical Sciences, Semnan, Iran.,Molecular Medicine Department, Pasteur Institute of Iran, Tehran, Iran
| | | | - Hamzeh Rahimi
- Molecular Medicine Department, Pasteur Institute of Iran, Tehran, Iran
| | - Ali Akbar Shabani
- Department and Biotechnology Research Center, Semnan University of Medical Sciences, Semnan, Iran
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Abdolshahi A, Tabatabaie yazdi F, Shabani AA, Mortazavi SA, Marvdashti LM. Aflatoxin binding efficiency of Saccharomyces cerevisiae mannoprotein in contaminated pistachio nuts. Food Control 2018. [DOI: 10.1016/j.foodcont.2017.12.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Aliakbari F, Shabani AA, Bardania H, Mohammad-Beigi H, Tayaranian Marvian A, Dehghani Esmatabad F, Vafaei AA, Shojaosadati SA, Saboury AA, Christiansen G, Otzen DE, Morshedi D. Formulation and anti-neurotoxic activity of baicalein-incorporating neutral nanoliposome. Colloids Surf B Biointerfaces 2018; 161:578-587. [DOI: 10.1016/j.colsurfb.2017.11.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/12/2017] [Accepted: 11/07/2017] [Indexed: 01/05/2023]
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