Design and Production An Effective Bispecific Tandem Chimeric Antigen Receptor on T Cells against CD123 and Folate Receptor ß towards B-Acute Myeloid Leukaemia Blasts
Objective: The clinical studies of acute myeloid leukaemia (AML) revealed that antigen escaping variants cause cancer recurrence even after treatment with chimeric antigen receptor (CAR)-T cells that target a single tumour antigen. Due to the heterogeneous expression of antigens on leukaemia blasts,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Royan Institute (ACECR), Tehran
2021-11-01
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| Series: | Cell Journal |
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| Online Access: | https://celljournal.org/journal/article/fulltext/design-and-production-an-effective-bispecific-tandem-chimeric-antigen-receptor-on-t-cells-against-cd123-and-folate-receptor-b-towards-b-acute-myeloid-leukemia-blasts.pdf |
| _version_ | 1818460232016199680 |
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| author | Ali Ghamari Parviz Pakzad Ahmad Majd Marzieh Ebrahimi Amir Ali Hamidieh |
| author_facet | Ali Ghamari Parviz Pakzad Ahmad Majd Marzieh Ebrahimi Amir Ali Hamidieh |
| author_sort | Ali Ghamari |
| collection | DOAJ |
| description | Objective: The clinical studies of acute myeloid leukaemia (AML) revealed that antigen escaping variants cause cancer recurrence even after treatment with chimeric antigen receptor (CAR)-T cells that target a single tumour antigen. Due to the heterogeneous expression of antigens on leukaemia blasts, we hypothesized that a novel bispecific CAR, directed
to the folate receptor beta (FRβ)-binding single-chain variable fragment (scFv) and an IL3α-binding receptor (CD123) that has more expression in AML blasts, can decrease CAR-T cell exhaustion and increase the efficacy of CAR-T cells to prevent antigen escaping and consequent recurrence of AML.
Materials and Methods: In this experimental study, the survival, proliferation, and cytolysis of CAR-T cells remains suboptimal even with a costimulatory endodomain. Hence, we designed and constructed a tandem CAR that joins an FRβ and CD123 in the second generation retroviral vector to generate a bispecific tandem CAR (TanCAR-T cell).
Results: TanCAR FRβ-CD123 T cells showed distinct binding to FRβ or CD123 expressing cells. They could lyse the leukaemia cell lines (66.1 ± 11%) comparable to the single CAR-T cells against these determinants. TanCAR FRβ-CD123 T cells simultaneously engaged FRβ and CD123, which promoted T cell activation in targeting and lysis of the examined leukaemia cell lines. TanCAR-T cell significantly induced interferon gamma (IFNγ) and interleukin 2 (IL-2)
production more than single CAR-T cells, which produced a synergistic enhancement of TanCAR FRβ-CD123 T cell function when dual antigens faced simultaneously.
Conclusion: Dual-specific TanCAR FRβ-CD123 T cells showed therapeutic potential to improve AML control by coengaging FRβ and CD123 molecules in a robust, divalent immune system. This strategy may be a useful therapeutic approach in patients with relapsed B-cell malignancies. |
| first_indexed | 2024-12-14T23:26:58Z |
| format | Article |
| id | doaj.art-9d449c62ce3546fabb01e0e5ad871791 |
| institution | Directory Open Access Journal |
| issn | 2228-5806 2228-5814 |
| language | English |
| last_indexed | 2024-12-14T23:26:58Z |
| publishDate | 2021-11-01 |
| publisher | Royan Institute (ACECR), Tehran |
| record_format | Article |
| series | Cell Journal |
| spelling | doaj.art-9d449c62ce3546fabb01e0e5ad8717912022-12-21T22:43:46ZengRoyan Institute (ACECR), TehranCell Journal2228-58062228-58142021-11-0123665065710.22074/cellj.2021.7314Design and Production An Effective Bispecific Tandem Chimeric Antigen Receptor on T Cells against CD123 and Folate Receptor ß towards B-Acute Myeloid Leukaemia BlastsAli Ghamari0Parviz Pakzad1Ahmad Majd2Marzieh Ebrahimi3Amir Ali Hamidieh4Department of Cellular and Molecular Biology, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, IranDepartment of Microbiology, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, IranDepartment of Cellular and Molecular Biology, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, IranDepartment of Stem Cells and Developmental Biology, Cell Science Research Centre, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, IranPediatric Cell and Gene Therapy Research Center, Gene, Cell and Tissue Research Institute, Tehran University of Medical Sciences, Tehran, IranObjective: The clinical studies of acute myeloid leukaemia (AML) revealed that antigen escaping variants cause cancer recurrence even after treatment with chimeric antigen receptor (CAR)-T cells that target a single tumour antigen. Due to the heterogeneous expression of antigens on leukaemia blasts, we hypothesized that a novel bispecific CAR, directed to the folate receptor beta (FRβ)-binding single-chain variable fragment (scFv) and an IL3α-binding receptor (CD123) that has more expression in AML blasts, can decrease CAR-T cell exhaustion and increase the efficacy of CAR-T cells to prevent antigen escaping and consequent recurrence of AML. Materials and Methods: In this experimental study, the survival, proliferation, and cytolysis of CAR-T cells remains suboptimal even with a costimulatory endodomain. Hence, we designed and constructed a tandem CAR that joins an FRβ and CD123 in the second generation retroviral vector to generate a bispecific tandem CAR (TanCAR-T cell). Results: TanCAR FRβ-CD123 T cells showed distinct binding to FRβ or CD123 expressing cells. They could lyse the leukaemia cell lines (66.1 ± 11%) comparable to the single CAR-T cells against these determinants. TanCAR FRβ-CD123 T cells simultaneously engaged FRβ and CD123, which promoted T cell activation in targeting and lysis of the examined leukaemia cell lines. TanCAR-T cell significantly induced interferon gamma (IFNγ) and interleukin 2 (IL-2) production more than single CAR-T cells, which produced a synergistic enhancement of TanCAR FRβ-CD123 T cell function when dual antigens faced simultaneously. Conclusion: Dual-specific TanCAR FRβ-CD123 T cells showed therapeutic potential to improve AML control by coengaging FRβ and CD123 molecules in a robust, divalent immune system. This strategy may be a useful therapeutic approach in patients with relapsed B-cell malignancies.https://celljournal.org/journal/article/fulltext/design-and-production-an-effective-bispecific-tandem-chimeric-antigen-receptor-on-t-cells-against-cd123-and-folate-receptor-b-towards-b-acute-myeloid-leukemia-blasts.pdfacute myeloid leukaemiachimeric antigen receptorcd123folate receptor β |
| spellingShingle | Ali Ghamari Parviz Pakzad Ahmad Majd Marzieh Ebrahimi Amir Ali Hamidieh Design and Production An Effective Bispecific Tandem Chimeric Antigen Receptor on T Cells against CD123 and Folate Receptor ß towards B-Acute Myeloid Leukaemia Blasts Cell Journal acute myeloid leukaemia chimeric antigen receptor cd123 folate receptor β |
| title | Design and Production An Effective Bispecific Tandem Chimeric Antigen Receptor on T Cells against CD123 and Folate Receptor ß towards B-Acute Myeloid Leukaemia Blasts |
| title_full | Design and Production An Effective Bispecific Tandem Chimeric Antigen Receptor on T Cells against CD123 and Folate Receptor ß towards B-Acute Myeloid Leukaemia Blasts |
| title_fullStr | Design and Production An Effective Bispecific Tandem Chimeric Antigen Receptor on T Cells against CD123 and Folate Receptor ß towards B-Acute Myeloid Leukaemia Blasts |
| title_full_unstemmed | Design and Production An Effective Bispecific Tandem Chimeric Antigen Receptor on T Cells against CD123 and Folate Receptor ß towards B-Acute Myeloid Leukaemia Blasts |
| title_short | Design and Production An Effective Bispecific Tandem Chimeric Antigen Receptor on T Cells against CD123 and Folate Receptor ß towards B-Acute Myeloid Leukaemia Blasts |
| title_sort | design and production an effective bispecific tandem chimeric antigen receptor on t cells against cd123 and folate receptor ss towards b acute myeloid leukaemia blasts |
| topic | acute myeloid leukaemia chimeric antigen receptor cd123 folate receptor β |
| url | https://celljournal.org/journal/article/fulltext/design-and-production-an-effective-bispecific-tandem-chimeric-antigen-receptor-on-t-cells-against-cd123-and-folate-receptor-b-towards-b-acute-myeloid-leukemia-blasts.pdf |
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