a 2023

Identification of novel targets that upregulate CD20 expression in rituximab-resistant cells with the use of genomewide CRISPR screening.

DOSTÁLOVÁ, Lenka; Aneta LEDEREROVÁ; Helena PESCHELOVÁ; Tomáš LOJA; Michal ŠMÍDA et al.

Basic information

Original name

Identification of novel targets that upregulate CD20 expression in rituximab-resistant cells with the use of genomewide CRISPR screening.

Authors

DOSTÁLOVÁ, Lenka; Aneta LEDEREROVÁ; Helena PESCHELOVÁ; Tomáš LOJA and Michal ŠMÍDA

Edition

XX. International Workshop on CLL (iwCLL 2023), Boston, USA, 2023

Other information

Language

English

Type of outcome

Konferenční abstrakta

Country of publisher

United States of America

Confidentiality degree

is not subject to a state or trade secret

References:

Marked to be transferred to RIV

No

Organization

Středoevropský technologický institut – Repository – Repository

Keywords in English

CD20 antigen; rituximab; therapy of B-cell malignancies; CRISPR/Cas9 knockout screening

Links

MUNI/A/1224/2022, interní kód Repo.
Changed: 6/1/2026 00:51, RNDr. Daniel Jakubík

Abstract

In the original language

CD20 antigen has been used as a target of monoclonal antibodies (mAb) such as rituximab (RTX) in the therapy of B-cell malignancies for more than two decades. However, CLL B cells tend to express lower levels of CD20 on their surface or downregulate it following the mAb treatment, resulting in mAb resistance and subsequently therapy failure. Therefore, it is crucial to investigate the regulation of CD20 in order to restore sensitivity to anti-CD20 mAb and enhance its efficacy. The aim of this project was to perform genome-wide CRISPR/Cas9 knockout screening to identify genes whose disruption upregulates CD20 surface expression in the resistant cells with low CD20 levels.

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