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lymphocyte-activation
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CRISPR-Cas, a robust gene-editing technology in the era of modern cancer immunotherapy
, Article Cancer Cell International ; Volume 20, Issue 1 , September , 2020 ; Tafsiri, E ; Cho, W. C. S ; Ghaemi, A ; Sharif University of Technology
BioMed Central Ltd
2020
Abstract
Cancer immunotherapy has been emerged as a promising strategy for treatment of a broad spectrum of malignancies ranging from hematological to solid tumors. One of the principal approaches of cancer immunotherapy is transfer of natural or engineered tumor-specific T-cells into patients, a so called "adoptive cell transfer", or ACT, process. Construction of allogeneic T-cells is dependent on the employment of a gene-editing tool to modify donor-extracted T-cells and prepare them to specifically act against tumor cells with enhanced function and durability and least side-effects. In this context, CRISPR technology can be used to produce universal T-cells, equipped with recombinant T cell...
CRISPRi-mediated knock-down of PRDM1/BLIMP1 programs central memory differentiation in ex vivo-expanded human T cells
, Article BioImpacts ; Volume 12, Issue 4 , 2022 , Pages 337-347 ; 22285652 (ISSN) ; Sayadmanesh, A ; Nazer, N ; Ahmadi, A ; Hemmati, S ; Mohammadzade, H ; Ebrahimi, M ; Baharvand, H ; Khalaj, B ; Aghamaali, M. R ; Basiri, M ; Sharif University of Technology
Tabriz University of Medical Sciences
2022
Abstract
Introduction: B lymphocyte-induced maturation protein 1 (BLIMP1) encoded by the positive regulatory domain 1 gene (PRDM1), is a key regulator in T cell differentiation in mouse models. BLIMP1-deficiency results in a lower effector phenotype and a higher memory phenotype. Methods: In this study, we aimed to determine the role of transcription factor BLIMP1 in human T cell differentiation. Specifically, we investigated the role of BLIMP1 in memory differentiation and exhaustion of human T cells. We used CRISPR interference (CRISPRi) to knock-down BLIMP1 and investigated the differential expressions of T cell memory and exhaustion markers in BLIMP1-deficient T cells in comparison with...