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Kandarakov OF, Polyakova NS, Petrovskaya AV, Bruter AV, Belyavsky AV. CD52/FLAG and CD52/HA Fusion Proteins as Novel Magnetic Cell Selection Markers. Int J Mol Sci 2024; 25:6353. [PMID: 38928060 PMCID: PMC11203882 DOI: 10.3390/ijms25126353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
At present, the magnetic selection of genetically modified cells is mainly performed with surface markers naturally expressed by cells such as CD4, LNGFR (low affinity nerve growth factor receptor), and MHC class I molecule H-2Kk. The disadvantage of such markers is the possibility of their undesired and poorly predictable expression by unmodified cells before or after cell manipulation, which makes it essential to develop new surface markers that would not have such a drawback. Earlier, modified CD52 surface protein variants with embedded HA and FLAG epitope tags (CD52/FLAG and CD52/HA) were developed by the group of Dr. Mazurov for the fluorescent cell sorting of CRISPR-modified cells. In the current study, we tested whether these markers can be used for the magnetic selection of transduced cells. For this purpose, appropriate constructs were created in MigR1-based bicistronic retroviral vectors containing EGFP and DsRedExpress2 as fluorescent reporters. Cytometric analysis of the transduced NIH 3T3 cell populations after magnetic selection evaluated the efficiency of isolation and purity of the obtained populations, as well as the change in the median fluorescence intensity (MFI). The results of this study demonstrate that the surface markers CD52/FLAG and CD52/HA can be effectively used for magnetic cell selection, and their efficiencies are comparable to that of the commonly used LNGFR marker. At the same time, the significant advantage of these markers is the absence of HA and FLAG epitope sequences in cellular proteins, which rules out the spurious co-isolation of negative cells.
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Affiliation(s)
- Oleg F. Kandarakov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str. 32, 119991 Moscow, Russia; (O.F.K.); (N.S.P.); (A.V.P.)
| | - Natalia S. Polyakova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str. 32, 119991 Moscow, Russia; (O.F.K.); (N.S.P.); (A.V.P.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Vavilov Str. 32, 119991 Moscow, Russia;
| | - Alexandra V. Petrovskaya
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str. 32, 119991 Moscow, Russia; (O.F.K.); (N.S.P.); (A.V.P.)
| | - Alexandra V. Bruter
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Vavilov Str. 32, 119991 Moscow, Russia;
- Institute of Gene Biology, Russian Academy of Sciences, Vavilov Str. 34/5, 119334 Moscow, Russia
| | - Alexander V. Belyavsky
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Str. 32, 119991 Moscow, Russia; (O.F.K.); (N.S.P.); (A.V.P.)
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MA PAN, HE QIANG, LI WEI, LI XIANLIANG, HAN HUAMIN, JIN MENGMENG, LIU CHANGZHEN, TAO HUA, MA JUAN, GAO BIN. Anti-CD3 x EGFR bispecific antibody redirects cytokine-induced killer cells to glioblastoma in vitro and in vivo. Oncol Rep 2015; 34:2567-75. [DOI: 10.3892/or.2015.4233] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 05/14/2015] [Indexed: 11/06/2022] Open
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Antibody-free magnetic cell sorting of genetically modified primary human CD4+ T cells by one-step streptavidin affinity purification. PLoS One 2014; 9:e111437. [PMID: 25360777 PMCID: PMC4216076 DOI: 10.1371/journal.pone.0111437] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 10/02/2014] [Indexed: 01/10/2023] Open
Abstract
Existing methods for phenotypic selection of genetically modified mammalian cells suffer disadvantages of time, cost and scalability and, where antibodies are used to bind exogenous cell surface markers for magnetic selection, typically yield cells coated with antibody-antigen complexes and beads. To overcome these limitations we have developed a method termed Antibody-Free Magnetic Cell Sorting in which the 38 amino acid Streptavidin Binding Peptide (SBP) is displayed at the cell surface by the truncated Low Affinity Nerve Growth Receptor (LNGFRF) and used as an affinity tag for one-step selection with streptavidin-conjugated magnetic beads. Cells are released through competition with the naturally occurring vitamin biotin, free of either beads or antibody-antigen complexes and ready for culture or use in downstream applications. Antibody-Free Magnetic Cell Sorting is a rapid, cost-effective, scalable method of magnetic selection applicable to either viral transduction or transient transfection of cell lines or primary cells. We have optimised the system for enrichment of primary human CD4+ T cells expressing shRNAs and exogenous genes of interest to purities of >99%, and used it to isolate cells following Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 genome editing.
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Ma J, Han H, Liu D, li W, Feng H, Xue X, Wu X, Niu G, Zhang G, Zhao Y, Liu C, Tao H, Gao B. HER2 as a promising target for cytotoxicity T cells in human melanoma therapy. PLoS One 2013; 8:e73261. [PMID: 24015299 PMCID: PMC3754977 DOI: 10.1371/journal.pone.0073261] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Accepted: 07/21/2013] [Indexed: 12/03/2022] Open
Abstract
Anti-HER2/neu antibody therapy has been reported to mediate tumor regression of HER2/ neu(+) tumors. Here we demonstrated the expression of HER2 in a wide range of human melanoma cells including a primary culture and seven cell lines, and we further investigated whether HER2 could be served as a target for T cell mediated immunotherapy of human melanoma. Specific cytolytic activity of activated T cells (ATC) armed with anti-CD3 x anti-HER2 bispecific antibody (HER2Bi-Ab) against Malme-3M-luc cells was evaluated by bioluminescent signal generated by luciferase reporter which did not alter HER2 expression or proliferation ability of Malme-3M cells. Contrast with unarmed ATC, increased cytotoxic activity of HER2Bi-armed ATC against Malme-3M-luc cells was observed at effector/target (E/T) ratios of 1:1, 5:1, and 20:1. Moreover, HER2Bi-armed ATC expressed higher level of activation marker CD69 and secreted significantly higher level of IFN-γ than unarmed ATC counterpart at the E/T ratio of 20:1. In addition, compared with anti-HER2 mAb (Herceptin®) or unarmed ATC, HER2Bi-armed ATC showed remarkable suppression effect on Malme-3M-luc tumor cells. Furthermore, in melanoma tumor cell xenograft mice, infusion of HER2Bi-armed ATC successfully inhibited the growth of melanoma tumors. The anti-tumor effect of HER2Bi-armed ATC may provide a promising immunotherapy for melanoma in the future.
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MESH Headings
- Animals
- Antibodies, Bispecific/immunology
- Antibodies, Bispecific/pharmacology
- Antibodies, Neoplasm/immunology
- Antibodies, Neoplasm/pharmacology
- CD3 Complex/immunology
- CD3 Complex/metabolism
- Gene Expression Regulation, Enzymologic/drug effects
- Gene Expression Regulation, Enzymologic/immunology
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Expression Regulation, Neoplastic/immunology
- Humans
- K562 Cells
- Lymphocyte Activation/drug effects
- Lymphocyte Activation/immunology
- Melanoma/drug therapy
- Melanoma/immunology
- Melanoma/pathology
- Mice
- Mice, SCID
- Receptor, ErbB-2/genetics
- Receptor, ErbB-2/immunology
- Receptor, ErbB-2/metabolism
- T-Lymphocytes/immunology
- T-Lymphocytes/pathology
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Juan Ma
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
| | - Huamin Han
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
- Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, P. R. China
| | - Deruo Liu
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, P. R. China
| | - Wei li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
| | - Hongxiang Feng
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, P. R. China
| | - Xin Xue
- Department of Immunology, Basic Medical Theory of Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, P. R. China
| | - Xiaoran Wu
- Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, P. R. China
| | - Ge Niu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
| | - Ge Zhang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
| | - Yunfeng Zhao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
| | - Changzhen Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
| | - Hua Tao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
| | - Bin Gao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
- China-Japan Joint Laboratory of Molecular Immunology and Microbiology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P. R. China
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