CD44v6 chimeric antigen receptor T cell specificity towards AML with FLT3 or DNMT3A mutations.

ABSTRACT:

Background

Chimeric antigen receptor T-cell (CAR-T) therapy for acute myeloid leukaemia (AML) has thus far been elusive, in part due to target restriction and phenotypic heterogeneity of AML cells. Mutations of the FMS-like tyrosine kinase 3 (FLT3) and DNA methyltransferase 3A (DNMT3A) genes are common driver mutations that present with a poor prognosis in AML patients. We found that AML patients with FLT3 or DNMT3A mutations had higher expression of CD44 isoform 6 (CD44v6) compared to normal specimens. Therefore, we intended to demonstrate CD44v6 could be a specific option for AML with FLT3 or DNMT3A mutations.

Methods

Internal tandem duplication (ITD) mutations of FLT3 (FLT3/ITD) knock-in clone and DNMT3A-R882H mutant clones of SKM-1 cells were generated using CRISPR/Cas9

SUBMITTER: Tang L 

PROVIDER: S-EPMC9513046 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature