» Articles » PMID: 34171263

The AML Microenvironment Catalyzes a Stepwise Evolution to Gilteritinib Resistance

Abstract

Our study details the stepwise evolution of gilteritinib resistance in FLT3-mutated acute myeloid leukemia (AML). Early resistance is mediated by the bone marrow microenvironment, which protects residual leukemia cells. Over time, leukemia cells evolve intrinsic mechanisms of resistance, or late resistance. We mechanistically define both early and late resistance by integrating whole-exome sequencing, CRISPR-Cas9, metabolomics, proteomics, and pharmacologic approaches. Early resistant cells undergo metabolic reprogramming, grow more slowly, and are dependent upon Aurora kinase B (AURKB). Late resistant cells are characterized by expansion of pre-existing NRAS mutant subclones and continued metabolic reprogramming. Our model closely mirrors the timing and mutations of AML patients treated with gilteritinib. Pharmacological inhibition of AURKB resensitizes both early resistant cell cultures and primary leukemia cells from gilteritinib-treated AML patients. These findings support a combinatorial strategy to target early resistant AML cells with AURKB inhibitors and gilteritinib before the expansion of pre-existing resistance mutations occurs.

Citing Articles

IHCH9033, a novel class I HDAC inhibitor, synergizes with FLT3 inhibitor and rescues quizartinib resistance in FLT3-ITD AML via enhancing DNA damage response.

Yao M, Yan W, Wang Y, Zhao Y, Xu X, Chen Y Exp Hematol Oncol. 2025; 14(1):15.

PMID: 39955584 PMC: 11829435. DOI: 10.1186/s40164-025-00605-y.


ARTN and CCL23 predicted chemosensitivity in acute myeloid leukemia: an Olink proteomics approach.

Wu T, Hsiao T, Chen C, Li H, Hung M, Jhan P Clin Proteomics. 2025; 22(1):3.

PMID: 39833682 PMC: 11749431. DOI: 10.1186/s12014-025-09527-7.


The Dual PIM/FLT3 Inhibitor MEN1703 Combines Synergistically With Gilteritinib in FLT3-ITD-Mutant Acute Myeloid Leukaemia.

Zicari S, Merlino G, Paoli A, Fiascarelli A, Tunici P, Bisignano D J Cell Mol Med. 2024; 28(23):e70235.

PMID: 39653657 PMC: 11628189. DOI: 10.1111/jcmm.70235.


Identification of PANoptosis-based signature for predicting the prognosis and immunotherapy response in AML.

Zhang L, Yu Y, Li G, Li J, Ma X, Ren J Heliyon. 2024; 10(22):e40267.

PMID: 39634422 PMC: 11616514. DOI: 10.1016/j.heliyon.2024.e40267.


Pharmacological targeting of casein kinase 1δ suppresses oncogenic NRAS-driven melanoma.

Wen Y, Wang H, Yang X, Zhu Y, Li M, Ma X Nat Commun. 2024; 15(1):10088.

PMID: 39572526 PMC: 11582648. DOI: 10.1038/s41467-024-54140-1.


References
1.
Li W, Xu H, Xiao T, Cong L, Love M, Zhang F . MAGeCK enables robust identification of essential genes from genome-scale CRISPR/Cas9 knockout screens. Genome Biol. 2014; 15(12):554. PMC: 4290824. DOI: 10.1186/s13059-014-0554-4. View

2.
Smith C, Lin K, Stecula A, Sali A, Shah N . FLT3 D835 mutations confer differential resistance to type II FLT3 inhibitors. Leukemia. 2015; 29(12):2390-2. PMC: 4675689. DOI: 10.1038/leu.2015.165. View

3.
Mertins P, Tang L, Krug K, Clark D, Gritsenko M, Chen L . Reproducible workflow for multiplexed deep-scale proteome and phosphoproteome analysis of tumor tissues by liquid chromatography-mass spectrometry. Nat Protoc. 2018; 13(7):1632-1661. PMC: 6211289. DOI: 10.1038/s41596-018-0006-9. View

4.
Smida M, Fece de la Cruz F, Kerzendorfer C, Uras I, Mair B, Mazouzi A . MEK inhibitors block growth of lung tumours with mutations in ataxia-telangiectasia mutated. Nat Commun. 2016; 7:13701. PMC: 5150652. DOI: 10.1038/ncomms13701. View

5.
Lagadinou E, Sach A, Callahan K, Rossi R, Neering S, Minhajuddin M . BCL-2 inhibition targets oxidative phosphorylation and selectively eradicates quiescent human leukemia stem cells. Cell Stem Cell. 2013; 12(3):329-41. PMC: 3595363. DOI: 10.1016/j.stem.2012.12.013. View