» Articles » PMID: 22545138

Novel Serial Positive Enrichment Technology Enables Clinical Multiparameter Cell Sorting

Abstract

A general obstacle for clinical cell preparations is limited purity, which causes variability in the quality and potency of cell products and might be responsible for negative side effects due to unwanted contaminants. Highly pure populations can be obtained best using positive selection techniques. However, in many cases target cell populations need to be segregated from other cells by combinations of multiple markers, which is still difficult to achieve--especially for clinical cell products. Therefore, we have generated low-affinity antibody-derived Fab-fragments, which stain like parental antibodies when multimerized via Strep-tag and Strep-Tactin, but can subsequently be removed entirely from the target cell population. Such reagents can be generated for virtually any antigen and can be used for sequential positive enrichment steps via paramagnetic beads. First protocols for multiparameter enrichment of two clinically relevant cell populations, CD4(high)/CD25(high)/CD45RA(high) 'regulatory T cells' and CD8(high)/CD62L(high)/CD45RA(neg) 'central memory T cells', have been established to determine quality and efficacy parameters of this novel technology, which should have broad applicability for clinical cell sorting as well as basic research.

Citing Articles

Current advances in experimental and computational approaches to enhance CAR T cell manufacturing protocols and improve clinical efficacy.

Colina A, Shah V, Shah R, Kozlik T, Dash R, Terhune S Front Mol Med. 2024; 4:1310002.

PMID: 39086435 PMC: 11285593. DOI: 10.3389/fmmed.2024.1310002.


Fully closed cell sorter for immune cell therapy manufacturing.

Matsumoto M, Tashiro S, Ito T, Takahashi K, Hashimoto G, Kajihara J Mol Ther Methods Clin Dev. 2023; 30:367-376.

PMID: 37637381 PMC: 10457513. DOI: 10.1016/j.omtm.2023.07.012.


Aptamer-Based Chromatographic Methods for Efficient and Economical Separation of Leukocyte Populations.

Ling M, Cardle I, Song K, Yan A, Kacherovsky N, Jensen M ACS Biomater Sci Eng. 2023; 9(8):5062-5071.

PMID: 37467493 PMC: 11016351. DOI: 10.1021/acsbiomaterials.3c00651.


Next generation automated traceless cell chromatography platform for GMP-compliant cell isolation and activation.

Radisch S, Poltorak M, Wagner M, Cletiu V, Radisch C, Treise I Sci Rep. 2022; 12(1):6572.

PMID: 35449227 PMC: 9023455. DOI: 10.1038/s41598-022-10320-x.


Guidelines for the use of flow cytometry and cell sorting in immunological studies (third edition).

Cossarizza A, Chang H, Radbruch A, Abrignani S, Addo R, Akdis M Eur J Immunol. 2021; 51(12):2708-3145.

PMID: 34910301 PMC: 11115438. DOI: 10.1002/eji.202170126.


References
1.
Fiedler M, Skerra A . Use of thiophilic adsorption chromatography for the one-step purification of a bacterially produced antibody F(ab) fragment without the need for an affinity tag. Protein Expr Purif. 1999; 17(3):421-7. DOI: 10.1006/prep.1999.1142. View

2.
Hoffmann P, Eder R, Boeld T, Doser K, Piseshka B, Andreesen R . Only the CD45RA+ subpopulation of CD4+CD25high T cells gives rise to homogeneous regulatory T-cell lines upon in vitro expansion. Blood. 2006; 108(13):4260-7. DOI: 10.1182/blood-2006-06-027409. View

3.
Altman J, Moss P, Goulder P, Barouch D, McHeyzer-Williams M, Bell J . Phenotypic analysis of antigen-specific T lymphocytes. Science. 1996; 274(5284):94-6. DOI: 10.1126/science.274.5284.94. View

4.
Kohm A, McMahon J, Podojil J, Begolka W, DeGutes M, Kasprowicz D . Cutting Edge: Anti-CD25 monoclonal antibody injection results in the functional inactivation, not depletion, of CD4+CD25+ T regulatory cells. J Immunol. 2006; 176(6):3301-5. DOI: 10.4049/jimmunol.176.6.3301. View

5.
Riley J, June C, Blazar B . Human T regulatory cell therapy: take a billion or so and call me in the morning. Immunity. 2009; 30(5):656-65. PMC: 2742482. DOI: 10.1016/j.immuni.2009.04.006. View