1
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Jamali A, Ho N, Braun A, Adabi E, Thalheimer FB, Buchholz CJ. Early induction of cytokine release syndrome by rapidly generated CAR T cells in preclinical models. EMBO Mol Med 2024; 16:784-804. [PMID: 38514793 PMCID: PMC11018744 DOI: 10.1038/s44321-024-00055-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/23/2024] [Accepted: 03/04/2024] [Indexed: 03/23/2024] Open
Abstract
Cytokine release syndrome (CRS) is a significant side-effect of conventional chimeric antigen receptor (CAR) T-cell therapy. To facilitate patient accessibility, short-term (st) CAR T cells, which are administered to patients only 24 h after vector exposure, are in focus of current investigations. Their impact on the incidence and severity of CRS has been poorly explored. Here, we evaluated CD19-specific stCAR T cells in preclinical models. In co-culture with tumor cells and monocytes, stCAR T cells exhibited anti-tumoral activity and potent release of CRS-related cytokines (IL-6, IFN-γ, TNF-α, GM-CSF, IL-2, IL-10). When administered to NSG-SGM3 mice, stCAR T cells, but not conventional CAR T cells, induced severe acute adverse events within 24 h, including hypothermia and weight loss, as well as high body scores, independent of the presence of tumor target cells. Human (IFN-γ, TNF-α, IL-2, IL-10) and murine (MCP-1, IL-6, G-CSF) cytokines, typical for severe CRS, were systemically elevated. Our data highlight potential safety risks of rapidly manufactured CAR T cells and suggest NSG-SGM3 mice as sensitive model for their preclinical safety evaluation.
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Affiliation(s)
- Arezoo Jamali
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Naphang Ho
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
- Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
| | - Angela Braun
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Elham Adabi
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Frederic B Thalheimer
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
- Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
- Hematology, Cell and Gene Therapy (HZG), Paul-Ehrlich-Institut, Langen, Germany
| | - Christian J Buchholz
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany.
- Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany.
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany.
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2
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Kapitza L, Ho N, Kerzel T, Frank AM, Thalheimer FB, Jamali A, Schaser T, Buchholz CJ, Hartmann J. CD62L as target receptor for specific gene delivery into less differentiated human T lymphocytes. Front Immunol 2023; 14:1183698. [PMID: 37646032 PMCID: PMC10461316 DOI: 10.3389/fimmu.2023.1183698] [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: 03/10/2023] [Accepted: 07/24/2023] [Indexed: 09/01/2023] Open
Abstract
Chimeric antigen receptor (CAR)-expressing T cells are a complex and heterogeneous gene therapy product with variable phenotype compositions. A higher proportion of less differentiated CAR T cells is usually associated with improved antitumoral function and persistence. We describe in this study a novel receptor-targeted lentiviral vector (LV) named 62L-LV that preferentially transduces less differentiated T cells marked by the L-selectin receptor CD62L, with transduction rates of up to 70% of CD4+ and 50% of CD8+ primary T cells. Remarkably, higher amounts of less differentiated T cells are transduced and preserved upon long-term cultivation using 62L-LV compared to VSV-LV. Interestingly, shed CD62L neither altered the binding of 62L-LV particles to T cells nor impacted their transduction. The incubation of 2 days of activated T lymphocytes with 62L-LV or VSV-LV for only 24 hours was sufficient to generate CAR T cells that controlled tumor growth in a leukemia tumor mouse model. The data proved that potent CAR T cells can be generated by short-term ex vivo exposure of primary cells to LVs. As a first vector type that preferentially transduces less differentiated T lymphocytes, 62L-LV has the potential to circumvent cumbersome selections of T cell subtypes and offers substantial shortening of the CAR T cell manufacturing process.
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Affiliation(s)
- Laura Kapitza
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Naphang Ho
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Thomas Kerzel
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Annika M. Frank
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | | | - Arezoo Jamali
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Thomas Schaser
- Research & Development, Miltenyi Biotec B.V. & Co. KG, Bergisch Gladbach, Germany
| | - Christian J. Buchholz
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
| | - Jessica Hartmann
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
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Riechert V, Hein S, Visser M, Zimmermann M, Wesche J, Adams PA, Theuerkauf SA, Jamali A, Wangorsch A, Reuter A, Pasternak A, Hartmann J, Greinacher A, Herrera-Carrillo E, Berkhout B, Cichutek K, Buchholz CJ. FcγRIIA-specific DARPins as novel tools in blood cell analysis and platelet aggregation. J Biol Chem 2023; 299:104743. [PMID: 37100283 DOI: 10.1016/j.jbc.2023.104743] [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: 10/03/2022] [Revised: 03/31/2023] [Accepted: 04/10/2023] [Indexed: 04/28/2023] Open
Abstract
Fc receptors are involved in a variety of physiologically and disease relevant responses. Among them, FcγRIIA (CD32a) is known for its activating functions in pathogen recognition and platelet biology, and, as potential marker of T lymphocytes latently infected with HIV-1. The latter has not been without controversy due to technical challenges complicated by T-B cell conjugates and trogocytosis as well as a lack of antibodies distinguishing between the closely related isoforms of FcγRII. To generate high-affinity binders specific for FcγRIIA, libraries of designed ankyrin repeat proteins (DARPins) were screened for binding to its extracellular domains by ribosomal display. Counter-selection against FcγRIIB eliminated binders cross-reacting with both isoforms. The identified DARPins bound FcγRIIA with no detectable binding for FcγRIIB. Their affinities for FcγRIIA were in the low nanomolar range and could be enhanced by cleavage of the His-tag and dimerization. Interestingly, complex formation between DARPin and FcγRIIA followed a two-state reaction model and discrimination from FcγRIIB was based on a single amino acid residue. In flow cytometry, DARPin F11 detected FcγRIIA+ cells even when they made up less than 1% of the cell population. Image stream analysis of primary human blood cells confirmed that F11 caused dim but reliable cell surface staining of a small subpopulation of T lymphocytes. When incubated with platelets, F11 inhibited their aggregation equally efficient as antibodies unable to discriminate between both FcγRII isoforms. The selected DARPins are unique novel tools for platelet aggregation studies as well as the role of FcγRIIA for the latent HIV-1 reservoir.
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Affiliation(s)
- Vanessa Riechert
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Sascha Hein
- Virology, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Mayken Visser
- Haematology and Transfusion Medicine, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Mathias Zimmermann
- Institute for Transfusion Medicine, University Medicine Greifswald, Germany
| | - Jan Wesche
- Institute for Transfusion Medicine, University Medicine Greifswald, Germany
| | - Philipp A Adams
- Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Netherlands
| | - Samuel A Theuerkauf
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Arezoo Jamali
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Andrea Wangorsch
- Molecular Allergology, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Andreas Reuter
- Division of Allergology, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Alexander Pasternak
- Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Netherlands
| | - Jessica Hartmann
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Andreas Greinacher
- Institute for Transfusion Medicine, University Medicine Greifswald, Germany
| | - Elena Herrera-Carrillo
- Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Netherlands
| | - Ben Berkhout
- Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Netherlands
| | - Klaus Cichutek
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Christian J Buchholz
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany.
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4
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Rahbar S, Shafiekhani S, Allahverdi A, Jamali A, Kheshtchin N, Ajami M, Mirsanei Z, Habibi S, Makkiabadi B, Hadjati J, Jafari AH. Agent-based Modeling of Tumor and Immune System Interactions in Combinational Therapy with Low-dose 5-fluorouracil and Dendritic Cell Vaccine in Melanoma B16F10. Iran J Allergy Asthma Immunol 2022; 21:151-166. [PMID: 35490269 DOI: 10.18502/ijaai.v21i2.9223] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 09/13/2021] [Indexed: 06/14/2023]
Abstract
This study is designed to present an agent-based model (ABM) to simulate the interactions between tumor cells and the immune system in the melanoma model. The Myeloid-derived Suppressor Cells (MDSCs) and dendritic cells (DCs) are considered in this model as immunosuppressive and antigen-presenting agents respectively. The animal experiment was performed on 68 B16F10 melanoma tumor-bearing C57BL/6 female mice to collect dynamic data for ABM implementation and validation. Animals were divided into 4 groups; group 1 was control (no treatment) while groups 2 and 3 were treated with DC vaccine and low-dose 5- fluorouracil (5-FU) respectively and group 4 was treated with both DC Vaccine and low-dose of 5-FU. The tumor growth rate, number of MDSC, and presence of CD8+/CD107a+ T cells in the tumor microenvironment were evaluated in each group. Firstly, the tumor cells, the effector immune cells, DCs, and the MDSCs have been considered as the agents of the ABM model and their interaction methods have been extracted from the literature and implemented in the model. Then, the model parameters were estimated by the dynamic data collected from animal experiments. To validate the ABM model, the simulation results were compared with the real data. The results show that the dynamics of the model agents can mimic the relations among considered immune system components to an emergent outcome compatible with real data. The simplicity of the proposed model can help to understand the results of the combinational therapy and make this model a useful tool for studying different scenarios and assessing the combinational results. Determining the role of each component helps to find critical times during tumor progression and change the tumor and immune system balance in favor of the immune system.
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Affiliation(s)
- Sarah Rahbar
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Sajad Shafiekhani
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Armin Allahverdi
- Department of Radiology, Sari School of Allied Medical Sciences, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Arezoo Jamali
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran AND Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany.
| | - Nasim Kheshtchin
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran AND Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Maryam Ajami
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Zahra Mirsanei
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Sima Habibi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Bahador Makkiabadi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran AND Research Center for Biomedical Technologies and Robotics (RCBTR), Tehran University of Medical Sciences, Tehran, Iran.
| | - Jamshid Hadjati
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Amir Homayoun Jafari
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran AND Research Center for Biomedical Technologies and Robotics (RCBTR), Tehran University of Medical Sciences, Tehran, Iran.
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5
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Taghva M, Enteghad S, Jamali A, Mohaghegh M. Comparison of shear bond strength of CAD/CAM and conventional heat-polymerized acrylic resin denture bases to auto-polymerized and heat-polymerized acrylic resins after aging. J Clin Exp Dent 2022; 14:e72-e78. [PMID: 35070127 PMCID: PMC8760966 DOI: 10.4317/jced.59097] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 12/13/2021] [Indexed: 12/03/2022] Open
Abstract
Background The aim of this study was to investigate the shear bond strength of CAD/CAM and conventional heat polymerized acrylic resin denture bases bonded to self-cured and heat-cured acrylic resins after aging.
Material and Methods A total of 40 cubic specimens were fabricated from conventional heat-polymerized and CAD/CAM denture base resins. Denture base resin specimens in each group were divided into two subgroups (n=10) in which they were bonded to either a heat-cured (HC) or a self-cured (SC) reline resin. Subsequently, the specimens were subjected to thermocycling. Then the shear bond strength (SBS) of specimens was measured using the universal testing machine. After testing, modes of failure were examined using light microscopy. The results were submitted to statistical analysis.
Results Mann-Whitney test showed that in each group of denture base materials, specimens bonded to HC reline resin had significantly higher SBS than those bonded to SC reline resin (P<0.001). Conventional denture base bonded to HC resin exhibited the highest value of SBS. There was no statistically significant differences between the SBS of HC reline resin bonded to conventional and CAD/CAM with regards to SBS (P=0.218). However, the SBS of SC reline resin was significantly higher when bonded to CAD/CAM compared to conventional denture base resin (P<0.001).
Conclusions Heat-cured reline resin showed higher shear bond strength to both CAD/CAM and conventional heat-polymerized denture resin in comparison to self-cured reline resin. Although there was no difference between the bond strength of heat-cured reline resin to CAD/CAM and conventional denture base, self-cured reline material produced stronger bond with CAD/CAM denture base. Key words:CAD/CAM, shear bond strength, reline, denture base resin.
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6
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Jamali A, Hadjati J, Madjd Z, Mirzaei HR, Thalheimer FB, Agarwal S, Bonig H, Ullrich E, Hartmann J. Highly Efficient Generation of Transgenically Augmented CAR NK Cells Overexpressing CXCR4. Front Immunol 2020; 11:2028. [PMID: 32983147 PMCID: PMC7483584 DOI: 10.3389/fimmu.2020.02028] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 07/27/2020] [Indexed: 12/25/2022] Open
Abstract
Natural killer (NK) cells are a noteworthy lymphocyte subset in cancer adoptive cell therapy. NK cells initiate innate immune responses against infections and malignancies with natural cytotoxicity, which is independent of foreign antigen recognition. Based on these substantive features, genetically modifying NK cells is among the prime goals in immunotherapy but is currently difficult to achieve. Recently, we reported a fully human CAR19 construct (huCAR19) with remarkable function in gene-modified T-cells. Here, we show efficient and stable gene delivery of huCAR19 to primary human NK cells using lentiviral vectors with transduction efficiencies comparable to those achieved with NK cell lines. These huCAR19 NK cells display specific and potent cytotoxic activity against target cells. To improve homing of NK cells to the bone marrow, we augmented huCAR19 NK cells with the human CXCR4 gene, resulting in transgenically augmented CAR NK cells (TRACKs). Compared to conventional CAR NK cells, TRACKs exhibit enhanced migration capacity in response to recombinant SDF-1 or bone marrow stromal cells while retaining functional and cytolytic activity against target cells. Based on these promising findings, TRACKs may become a novel candidate for immunotherapeutic strategies in clinical applications.
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Affiliation(s)
- Arezoo Jamali
- Faculty of Advanced Technologies in Medicine, Department of Molecular Medicine, Iran University of Medical Sciences, Tehran, Iran.,Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany.,Experimental Immunology, Division of Stem Cell Transplantation and Immunology, Childrens Hospital, Goethe University, Frankfurt, Germany
| | - Jamshid Hadjati
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Madjd
- Faculty of Advanced Technologies in Medicine, Department of Molecular Medicine, Iran University of Medical Sciences, Tehran, Iran.,Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Mirzaei
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Shiwani Agarwal
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, Langen, Germany
| | - Halvard Bonig
- Institute for Transfusion Medicine and Immunohematology, Goethe University, Frankfurt, Germany.,German Red Cross Blood Service Baden-Württemberg-Hessen, Frankfurt, Germany.,Department of Medicine, Division of Hematology, University of Washington School of Medicine, Seattle, WA, United States
| | - Evelyn Ullrich
- Experimental Immunology, Division of Stem Cell Transplantation and Immunology, Childrens Hospital, Goethe University, Frankfurt, Germany.,German Cancer Consortium, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Frankfurt Cancer Institute, Frankfurt, Germany
| | - Jessica Hartmann
- Division of Molecular Biotechnology, Paul-Ehrlich-Institut, Langen, Germany
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Jafarzadeh L, Masoumi E, Alishah K, Mirzaei HR, Jamali A, Fallah-Mehrjardi K, Rostamian H, Khakpoor-Koosheh M, Meshkani R, Noorbakhsh F, Hadjati J. Construction and Functional Characterization of a Fully Human Anti-mesothelin Chimeric Antigen Receptor (CAR) Expressing T Cell. Iran J Allergy Asthma Immunol 2020; 19:264-275. [PMID: 32615660 DOI: 10.18502/ijaai.v19i3.3454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 01/26/2020] [Indexed: 11/24/2022]
Abstract
Chimeric antigen receptor (CAR) T cell therapy is considered as an encouraging approach for the treatment of hematological malignancies. However, its efficacy in solid tumors has not been satisfying, mainly in the immunosuppressive network of the tumor microenvironment and paucity of appropriate target antigens. Mesothelin (MSLN) is a tumor-associated antigen (TAA) expressed in numerous types of solid tumors such as gastrointestinal, ovarian, and pancreatic tumors. Owing to high expression in tumor cells and low expression in normal tissues, MSLN-targeted therapies like monoclonal antibodies have been previously developed. In the present study, a CAR T cell harboring the second-generation of a fully human anti-MSLN-CAR construct containing CD3ζ and 4-1BB signaling domains was produced and it was functionally evaluated against an MSLN-expressing cell line. The findings showed potent, specific proliferation, cytotoxic activity, and interleukin (IL)-2, Tumor necrosis factor-(TNF) α, and Interferon-(IFN) γ production in an antigen-dependent manner. Cytotoxic activity was shown in effector-to-target ratio from 1:1 to 20:1, but the most adequate efficacy was observed in the ratio of 10:1. Non-specific activity against MSLN negative cell line was not observed. Our data demonstrated that primary human T cells expressing fully human MSLN-CAR construct are effective against MSLN-expressing cell lines in vitro, suggesting this MSLN-CAR construct as a potential therapeutic tool in a clinical setting.
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Affiliation(s)
- Leila Jafarzadeh
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Elham Masoumi
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran AND Department of Immunology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran.
| | - Khadijeh Alishah
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran.
| | - Hamid Reza Mirzaei
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Arezoo Jamali
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institute, Langen, Germany AND Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Keyvan Fallah-Mehrjardi
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Hosein Rostamian
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Khakpoor-Koosheh
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Reza Meshkani
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Farshid Noorbakhsh
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Jamshid Hadjati
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Asgharnia A, Jamali A, Shahnazi R, Maheri A. Load mitigation of a class of 5-MW wind turbine with RBF neural network based fractional-order PID controller. ISA Trans 2020; 96:272-286. [PMID: 31326079 DOI: 10.1016/j.isatra.2019.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 07/01/2019] [Accepted: 07/02/2019] [Indexed: 05/16/2023]
Abstract
In variable-pitch wind turbines, pitch angle control is implemented to regulate the rotor speed and power production. However, mechanical loads of the wind turbines are affected by the pitch angle adjustment. To improve the performance and at the same time alleviate the mechanical loads, a gain-scheduling fractional-order PID (FOPID), where a trained RBF neural network chooses its parameters is proposed. The database, which the RBF neural network is trained based on, is created via optimization of a FOPID in several wind speeds with chaotic differential evolution (CDE) algorithm. The simulation results are compared to an RBF based PID controller that is designed via the same method, a conventional gain-scheduling baseline PI controller developed by NREL, an optimal RBF based PI controller, and a FOPI controller. The simulations indicate that the RBF based FOPID improves the control performance of the benchmark wind turbine in comparison to the other controllers, while the applied loads to the structure are mitigated. To validate the performance and robustness, all controllers are implemented on FAST wind turbine simulator. The superiority of the proposed FOPID controller is depicted in comparison to the other controllers.
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Affiliation(s)
- A Asgharnia
- Faculty of Mechanical Engineering, University of Guilan, Rasht, P.O. Box: 3756, Iran.
| | - A Jamali
- Faculty of Mechanical Engineering, University of Guilan, Rasht, P.O. Box: 3756, Iran.
| | - R Shahnazi
- Department of Electrical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran.
| | - A Maheri
- School of Engineering, University of Aberdeen, Aberdeen AB24 3UE, UK.
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9
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Jamali A, Moghbeli MR, Ameli F, Roayaie E, Karambeigi MS. Synthesis and characterization of pH‐sensitive poly(acrylamide‐
co
‐methylenebisacrylamide‐
co
‐acrylic acid) hydrogel microspheres containing silica nanoparticles: Application in enhanced oil recovery processes. J Appl Polym Sci 2019. [DOI: 10.1002/app.48491] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- A. Jamali
- Smart Polymers and Nanocomposites Research GroupSchool of Chemical Engineering, Iran University of Science and Technology Tehran 16846–13114 Iran
| | - M. R. Moghbeli
- Smart Polymers and Nanocomposites Research GroupSchool of Chemical Engineering, Iran University of Science and Technology Tehran 16846–13114 Iran
| | - F. Ameli
- Smart Polymers and Nanocomposites Research GroupSchool of Chemical Engineering, Iran University of Science and Technology Tehran 16846–13114 Iran
| | - E. Roayaie
- National Iranian Oil CompanyIOR/EOR Research Institute Tehran 1485733111 Iran
| | - M. S. Karambeigi
- National Iranian Oil CompanyIOR/EOR Research Institute Tehran 1485733111 Iran
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10
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Jamali A, Kapitza L, Schaser T, Johnston ICD, Buchholz CJ, Hartmann J. Highly Efficient and Selective CAR-Gene Transfer Using CD4- and CD8-Targeted Lentiviral Vectors. Mol Ther Methods Clin Dev 2019; 13:371-379. [PMID: 30997367 PMCID: PMC6453803 DOI: 10.1016/j.omtm.2019.03.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [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: 10/08/2018] [Accepted: 03/11/2019] [Indexed: 11/16/2022]
Abstract
Chimeric antigen receptor (CAR)-modified T cells have revealed promising results in the treatment of cancer, but they still need to overcome various hurdles, including a complicated manufacturing process. Receptor-targeted lentiviral vectors (LVs) delivering genes selectively to T cell subtypes may facilitate and improve CAR T cell generation, but so far they have resulted in lower gene delivery rates than conventional LVs (vesicular stomatitis virus [VSV]-LV). To overcome this limitation, we studied the effect of the transduction enhancer Vectofusin-1 on gene delivery to human T cells with CD4- and CD8-targeted LVs, respectively, encoding a second-generation CD19-CAR in conjunction with a truncated version of the low-affinity nerve growth factor receptor (ΔLNGFR) as reporter. Vectofusin-1 significantly enhanced the gene delivery of CD4- and CD8-LVs without a loss in target cell selectivity and killing capability of the generated CAR T cells. Notably, delivery rates mediated by VSV-LV were substantially reduced by Vectofusin-1. Interestingly, a transient off-target signal in samples treated with Vectofusin-1 was observed early after transduction. However, this effect was not caused by uptake and expression of the transgene in off-target cells, but rather it resulted from cell-bound LV particles having ΔLNGFR incorporated into their surface. The data demonstrate that gene transfer rates in the range of those mediated by VSV-LVs can be achieved with receptor-targeted LVs.
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Affiliation(s)
- Arezoo Jamali
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany.,Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Laura Kapitza
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany.,German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | | | | | - Christian J Buchholz
- Molecular Biotechnology and Gene Therapy, Paul-Ehrlich-Institut, 63225 Langen, Germany.,German Cancer Consortium (DKTK), 69120 Heidelberg, Germany.,Division of Molecular Biotechnology, Paul-Ehrlich-Institut, 63225 Langen, Germany
| | - Jessica Hartmann
- Division of Molecular Biotechnology, Paul-Ehrlich-Institut, 63225 Langen, Germany
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Mirzaei HR, Jamali A, Jafarzadeh L, Masoumi E, Alishah K, Fallah Mehrjardi K, Emami SAH, Noorbakhsh F, Till BG, Hadjati J. Construction and functional characterization of a fully human anti‐CD19 chimeric antigen receptor (huCAR)‐expressing primary human T cells. J Cell Physiol 2018; 234:9207-9215. [DOI: 10.1002/jcp.27599] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 09/19/2018] [Indexed: 01/10/2023]
Affiliation(s)
- Hamid Reza Mirzaei
- Department of Medical Immunology School of Medicine, Tehran University of Medical Sciences Tehran Iran
| | - Arezoo Jamali
- Department of Molecular Medicine Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences Tehran Iran
- Department of Medical Laboratory Sciences School of Allied Medical Sciences, Tehran University of Medical Sciences Tehran Iran
| | - Leila Jafarzadeh
- Department of Medical Immunology School of Medicine, Tehran University of Medical Sciences Tehran Iran
| | - Elham Masoumi
- Department of Medical Immunology School of Medicine, Tehran University of Medical Sciences Tehran Iran
| | - Khadijeh Alishah
- Department of Biotechnology College of Science, University of Tehran Tehran Iran
| | - Keyvan Fallah Mehrjardi
- Department of Medical Immunology School of Medicine, Tehran University of Medical Sciences Tehran Iran
| | - Seyed Amir Hossein Emami
- Division of Oncology, Department of Internal Medicine School of Medicine, Tehran University of Medical Sciences Tehran Iran
| | - Farshid Noorbakhsh
- Department of Medical Immunology School of Medicine, Tehran University of Medical Sciences Tehran Iran
| | - Brian G. Till
- Clinical Research Division Fred Hutchinson Cancer Research Center Seattle Washington
| | - Jamshid Hadjati
- Department of Medical Immunology School of Medicine, Tehran University of Medical Sciences Tehran Iran
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12
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Belkarty B, Jamali A, Harrison M, Ross J, Shah A, Jones A, Elborn J, Simmonds N. P061 The use of aprepitant as part of an effective anti-emetic regimen to facilitate successful completion of intensive intravenous (IV) Mycobacterium abscessus therapy. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30358-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Zarei R, Anvari P, Eslami Y, Fakhraie G, Mohammadi M, Jamali A, Afarideh M, Ghajar A, Heydarzade S, Esteghamati A, Moghimi S. Retinal nerve fibre layer thickness is reduced in metabolic syndrome. Diabet Med 2017; 34:1061-1066. [PMID: 28430372 DOI: 10.1111/dme.13369] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/18/2017] [Indexed: 12/22/2022]
Abstract
AIMS To investigate retinal nerve fibre layer (RNFL) thickness in people with metabolic syndrome (MetS) and healthy controls. METHODS A cross-sectional study was performed from March 2014 to January 2016. All participants underwent anthropometric and serological biochemical measurements, ophthalmological examination, and spectral-domain optical coherence tomography (SD-OCT). Individuals with elevated intraocular pressure, glaucoma, diabetic retinopathy and other ocular disorders were excluded. T-test, Chi square and general linear models were used to analyse the data. RESULTS In total, 278 eyes from 139 participants were investigated [median (interquartile range) age: 37 (32-43) years]. RNFL thickness was lower in the nasal superior (107.8 ± 19.5μm) and temporal superior (135.7 ± 18.9μm) sectors in MetS group compared with the control group (114.6 ± 22.4 μm, P = 0.013 and 140.7 ± 18.2 μm, P = 0.027, respectively). After multiple adjustments for age, gender and the side of the examined [right (OD)/left (OS)] eye, MetS was independently associated with a lower RFNL thickness in the nasal superior (β = 0.20, P = 0.009) and temporal superior (β = 0.14, P = 0.048) sectors. RNFL thickness was significantly reduced in participants with higher numbers of metabolic abnormalities, independent of age, gender and the side of the examined eye (P = 0.043). CONCLUSION Our findings demonstrate that MetS is independently associated with reduced RNFL thickness, suggesting that neurodegeneration is implicated in pathogenesis of MetS.
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Affiliation(s)
- R Zarei
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - P Anvari
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Y Eslami
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - G Fakhraie
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - M Mohammadi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - A Jamali
- Schepens Eye Research Institute/Mass Eye and Ear, Harvard Medical School, Boston, USA
| | - M Afarideh
- Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - A Ghajar
- Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - S Heydarzade
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - A Esteghamati
- Endocrinology and Metabolism Research Center (EMRC), Vali-Asr Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - S Moghimi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Boghozian R, Saei A, Mirzaei R, Jamali A, Vaziri B, Razavi A, Hadjati J. Identification of Toxoplasma gondii protein fractions induce immune response against melanoma in mice. APMIS 2015; 123:800-9. [PMID: 26152792 DOI: 10.1111/apm.12420] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 06/04/2015] [Indexed: 12/11/2022]
Abstract
Dendritic cells (DCs) play a crucial role in the initiation of adaptive immune responses against tumor cells. We recently found that protein components of Toxoplasma gondii (T. gondii) could mature DCs efficiently. Therefore, in this study, we aimed to find the most effective protein components of T. gondii which are able to mature DCs and consequently instruct immune responses in tumor-bearing mice. Soluble tachyzoite antigens (STAgs) were fractionated by ammonium sulfate precipitation and subsequently by anion-exchange HPLC. Immature DCs (iDCs) were treated by these protein fractions and were monitored for IL-12p70 and IL-10 production. Moreover, the capacity of mature DCs (mDCs) to induce lymphocyte proliferation was investigated. Ultimately, we analyzed the ability of mDCs in instructing immune responses in tumor-bearing mice. We found that ammonium sulfate fraction one (A1) matured-DCs produced higher IL-12 level and IL-12/IL-10 ratio; therefore, this fraction was selected for further fractionation by anion-exchange HPLC. The results showed that anion-exchange HPLC fraction 14 (C14) matured-DCs secrete higher levels of IL-12p70 and IL-12p70/IL-10 ratio. Survival of the mice matured by A1 fraction increased significantly compared to other groups. Moreover, SDS-PAGE electrophoresis showed that different obtained fractions have distinct proteins based on their size. These results demonstrate that two protein fractions of T. gondii are able to mature DCs more efficient.
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Affiliation(s)
- Roobina Boghozian
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Azad Saei
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Mirzaei
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Arezoo Jamali
- Department of Laboratory Sciences, School of Paramedicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Behrooz Vaziri
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Alireza Razavi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Jamshid Hadjati
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Jamali A, Harrison M, Bilton D, Simmonds N, Ross J. USE OF APREPITANT AS AN ANTIEMETIC IN CYSTIC FIBROSIS PATIENTS. BMJ Support Palliat Care 2015. [DOI: 10.1136/bmjspcare-2014-000838.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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16
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Saei A, Boghozian R, Mirzaei R, Jamali A, Vaziri B, Hadjati J. Listeria monocytogenes protein fraction induces dendritic cells maturation and T helper 1 immune responses. Iran J Allergy Asthma Immunol 2014; 13:1-10. [PMID: 24338222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Accepted: 01/09/2013] [Indexed: 06/03/2023]
Abstract
Fully mature dendritic cells (DCs) play pivotal role in inducing immune responses and converting naïve T lymphocytes into functional Th1 cells. We aimed to evaluate Listeria Monocytogenes-derived protein fractions to induce DC maturation and stimulating T helper (Th)1 immune responses.In the present study, we fractionated Listeria Monocytogenes-derived proteins by adding of ammonium sulfate in a stepwise manner. DCs were also generated from C57BL/6 mice bone marrow precursor cells. Then, the effects of protein fractions on bone marrow derived DC (BMDC) maturation were evaluated. In addition, we assessed the capacity of activated DCs to induce cytokine production and proliferation of lymphocytes.Listeria-derived protein fractions induced fully mature DCs expressing high costimulatory molecules such as CD80, CD86 and CD40. DCs that were activated by selected F3 fraction had low capacity to uptake exogenous antigens while secreted high levels of Interleukine (IL)-12. Moreover, lymphocytes cultured with activated BMDCs produced high amounts of IFN-γ and showed higher proliferation than control. Listeria derived protein fractions differently influenced DC maturation.In conclusion, Listeria protein activated-BMDCs can be used as a cell based vaccine to induce anti-tumor immune responses.
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Affiliation(s)
- Azad Saei
- Department of Immunology, Tehran University of Medical Sciences, Tehran, Iran.
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Mortazavi S, Mosleh-Shirazi M, Tavassoli A, Taheri M, Mehdizadeh A, Namazi S, Jamali A, Ghalandari R, Bonyadi S, Haghani M, Shafie M. Increased Radioresistance to Lethal Doses of Gamma Rays in Mice and Rats after Exposure to Microwave Radiation Emitted by a GSM Mobile Phone Simulator. Dose Response 2012; 11:281-92. [PMID: 23930107 DOI: 10.2203/dose-response.12-010.mortazavi] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [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: 01/31/2023] Open
Abstract
The aim of this study was to investigate the effect of pre-irradiation with microwaves on the induction of radioadaptive response. In the 1(st) phase of the study, 110 male mice were divided into 8 groups. The animals in these groups were exposed/sham-exposed to microwave, low dose rate gamma or both for 5 days. On day six, the animals were exposed to a lethal dose (LD). In the 2(nd) phase, 30 male rats were divided into 2 groups of 15 animals. The 1(st) group received microwave exposure. The 2(nd) group (controls) received the same LD but there was no treatment before the LD. On day 5, all animals were whole-body irradiated with the LD. Statistically significant differences between the survival rate of the mice only exposed to lethal dose of gamma radiation before irradiation with a lethal dose of gamma radiation with those of the animals pre-exposed to either microwave (p=0.02), low dose rate gamma (p=0.001) or both of these physical adapting doses (p=0.003) were observed. Likewise, a statistically significant difference between survival rates of the rats in control and test groups was observed. Altogether, these experiments showed that exposure to microwave radiation may induce a significant survival adaptive response.
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Affiliation(s)
- Smj Mortazavi
- Professor of Medical Physics, Radiobiology & Radiation Protection Department, School of Allied Medical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran; ; The Center for Research in Radiological Sciences, School of Allied Medical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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Kane CSE, Jamali A, Kouhila M, Mimet A, Ahachad M. SINGLE-LAYER DRYING BEHAVIOR OF MEXICAN TEA LEAVES (CHENOPODIUM AMBROSIOIDES) IN A CONVECTIVE SOLAR DRYER AND MATHEMATICAL MODELING. CHEM ENG COMMUN 2008. [DOI: 10.1080/00986440701691095] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Scott N, Jamali A, Verbeke C, Ambrose NS, Botterill ID, Jayne DG. Retroperitoneal margin involvement by adenocarcinoma of the caecum and ascending colon: what does it mean? Colorectal Dis 2008; 10:289-93. [PMID: 17764533 DOI: 10.1111/j.1463-1318.2007.01365.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Circumferential margin involvement (CRM) is a powerful predictor of local recurrence, distant metastasis and patient survival in rectal cancer. In this study, we aimed to determine the frequency of retroperitoneal margin involvement in right colon cancer and describe its relationship to tumour stage and outcome of surgical treatment. METHOD Two hundred and twenty-eight consecutive resections for adenocarcinoma of the ascending colon and caecum were identified between 1998 and 2006. Tumour involvement of the posterior retroperitoneal surgical resection margin (RSRM) was recorded and correlated with tumour stage, grade and clinical outcome. RSRM positive patients were compared with CRM positive rectal tumours resected in the same surgical unit. RESULTS Nineteen of 228 right hemicolectomies (8.4%) showed tumour involvement of the RSRM (defined as < or = 1 mm). Approximately half of the RSRM positive patients underwent palliative resections because of synchronous distant metastases. Out of nine 'potentially curative' resections where the RSRM was involved, five patients subsequently developed metastatic recurrence and two isolated local recurrence. RSRM positivity was associated with advanced tumour stage and more extensive extramural spread than CRM positive rectal cancers. CONCLUSION Retroperitoneal surgical resection margin involvement by caecal and ascending colon carcinoma is a marker of advanced tumour stage and associated with a high incidence of synchronous and metachronous distant metastasis. More aggressive surgery to obtain a clear margin or postoperative radiotherapy to the tumour bed is likely to benefit only a minority of patients.
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Affiliation(s)
- N Scott
- Department of Histopathology, St James's University Hospital, Leeds, UK.
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20
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Baha Ali T, Moutaouakil A, Ouaggag B, Khoumiri R, Aderdour L, Hassani R, Raji A, Jamali A. [Orbital apex syndrome secondary to herpes zoster infection. A case report]. Bull Soc Belge Ophtalmol 2008:39-43. [PMID: 18546925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The orbital apex syndrome is defined by the association of visual loss, ophtalmoplegia, blepharoptosis, proptosis along with forehead and upper eyelid anesthesia. This syndrome is secondary to traumatism, malignancy or infection of orbital apex. Herpes zoster is an uncommon cause. We discuss the physiopathologic mechanism, evolution and management of this affection.
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Affiliation(s)
- T Baha Ali
- Service d'Ophtalmologie, CHU Mohammed VI, Marrakech, Maroc.
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Jamali A, Kouhila M, Mohamed LA, Idlimam A, Lamharrar A. Moisture adsorption–desorption isotherms of Citrus reticulata leaves at three temperatures. J FOOD ENG 2006. [DOI: 10.1016/j.jfoodeng.2005.06.045] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jamali A, Kouhila M, Ait Mohamed L, Jaouhari J, Idlimam A, Abdenouri N. Sorption isotherms of Chenopodium ambrosioides leaves at three temperatures. J FOOD ENG 2006. [DOI: 10.1016/j.jfoodeng.2004.11.021] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Mohamed A, Kouhila M, Jamali A, Lahsasni S, Mahrouz M. Moisture sorption isotherms and heat of sorption of bitter orange leaves (Citrus aurantium). J FOOD ENG 2005. [DOI: 10.1016/j.jfoodeng.2004.05.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Jamali A, Hilpert A, Debes J, Afshar P, Rahban S, Holmes R. Hydroxyapatite/calcium carbonate (HA/CC) vs. plaster of Paris: a histomorphometric and radiographic study in a rabbit tibial defect model. Calcif Tissue Int 2002; 71:172-8. [PMID: 12200649 DOI: 10.1007/s00223-001-1087-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2001] [Accepted: 01/16/2002] [Indexed: 11/26/2022]
Abstract
The search for an ideal bone substitute is ongoing. Multiple osteoconductive bone substitutes are available today. Plaster of Paris (POP) (calcium sulfate) has been used for more than 100 years for treatment of skeletal defects. This implant is compared to a new material, hydroxyapatite/calcium carbonate (HA/CC), in a rabbit tibia model. HA/CC is made from partial conversion of coralline calcium carbonate to hydroxyapatite and has an outer hydroxyapatite layer and an inner calcium carbonate core, a combination that leads to faster resorption than that of pure hydroxyapatite. This study compares the histomorphometric and radiographic properties of POP and HA/CC in a rabbit tibial defect. Both implants preferentially restore bone to the cortex relative to the canal. Plaster of Paris was fully resorbed by 6 weeks both radiographically and histometrically and HA/CC was substantially resorbed by 42 weeks. No significant difference was noted in volume fraction of bone between the two implants at 42 weeks postimplantation. Hydroxyapatite/calcium carbonate is a biocompatible bone graft substitute with a rate of resorption significantly slower than plaster of Paris.
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Affiliation(s)
- A Jamali
- Dept. of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA 02114, USA.
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Abstract
Rabbit extensor digitorum longus (EDL) tendons were cut with the muscle active (active tenotomy, AT) or with the EDL at rest (passive tenotomy, PT). One, 7, and 21 days after tenotomy, contractile testing was performed. A second experiment was performed in which EDL tendons underwent PT and, after a 7-day delay, muscle-tendon units were restored to their original length. Maximum isometric tension dropped precipitously 1 day after either AT or PT to approximately 50% of normal and continued to decline by day 7. In contrast to PT, where peak tension (P(0)) decreased further by 21 days, after AT, P(0) partially recovered. Differences in muscle mass, cross-sectional area, fiber type, and sarcomere number did not explain the differential response. One day after length restoration of muscles, P(0) rapidly increased by approximately 40%. These observations have implications for understanding the outcome of muscle-tendon unit injury and surgical repair.
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Affiliation(s)
- R A Abrams
- Department of Orthopedic Surgery, University of California, San Diego, 200 West Arbor St., San Diego, California 92103, USA
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Abstract
This paper summarizes data on 30 consecutive spinal tumors treated at King Khalid University Hospital (KKUH) between 1984-1991. The male:female ratio was 2.75:1. Thirty percent of cases were less than 20 years of age while 71% were more than 60 years of age. The brain to spinal cord tumor ratio in our unit was 12.3:1. The ratio of Schwannoma to meningioma was 1.6:1. Metastatic carcinoma accounted for a mere 13% of cases and only 35% of tumors were located in the thoracic spine. Intramedullary tumors accounted for 17% of cases. An overall 63% of cases improved postoperatively while 37% remained unchanged.
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Affiliation(s)
- A Jamjoom
- Divisions of Neurosurgery, Neurology, and Department of Radiology, King Khalid University Hospital, Riyadh, Saudi Arabia
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Jamjoom A, al-Abedeen Jamjoom Z, al-Hedaithy S, Jamali A, Naim-Ur-Rahman, Malabarey T. Ventriculitis and hydrocephalus caused by Candida albicans successfully treated by antimycotic therapy and cerebrospinal fluid shunting. Br J Neurosurg 1992; 6:501-4. [PMID: 1333229 DOI: 10.3109/02688699208995043] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A unique case of Candida albicans ventriculitis and hydrocephalus in the absence of any evidence of systemic candidiasis or immunosuppression is reported. Initial treatment with CSF shunting and intravenous antimycotic therapy appeared to have eradicated the infection. Recurrence occurred 5 months after discharge and this was treated by intravenous and intrathecal antimycotic therapy in addition to removal of the shunt system, external ventricular drainage and then replacement of the shunt. A concomitant pyogenic brain abscess responded to burrhole aspiration and antibiotics. The role of mannan antigen monitoring is discussed.
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Affiliation(s)
- A Jamjoom
- Division of Neurosurgery, King Khalid University Hospital, Riyadh, Saudi Arabia
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