ATP citrate lyase is an essential player in the metabolic rewiring induced by PTEN loss during T-ALL development
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View abstract on PubMed
Summary
This summary is machine-generated.Loss of the PTEN gene fuels T-cell acute lymphoblastic leukemia (T-ALL). Adenosine triphosphate (ATP) citrate lyase (ACLY) is essential for T-ALL growth, offering a potential therapeutic target for high-risk patients.
Area Of Science
- Oncology
- Molecular Biology
- Metabolic Pathways
Background
- Alterations in the tumor suppressor gene PTEN are implicated in various cancers.
- PTEN loss is a marker of poor prognosis in T-cell acute lymphoblastic leukemia (T-ALL).
- Understanding metabolic changes in T-ALL driven by PTEN loss is crucial for identifying new therapeutic strategies.
Purpose Of The Study
- To investigate the metabolic rewiring caused by PTEN loss in T-ALL.
- To identify novel metabolic vulnerabilities associated with PTEN-altered T-ALL.
- To evaluate the therapeutic potential of targeting ACLY in T-ALL.
Main Methods
- Investigated the role of Adenosine Triphosphate (ATP) Citrate Lyase (ACLY) in T-ALL development and progression.
- Utilized mouse models with PTEN mutations and ACLY deletion.
- Performed transcriptomic and metabolic analyses on primary T-ALL cells.
Main Results
- ACLY is essential for the transformation of thymic progenitors and the growth of human T-ALL.
- Concomitant deletion of ACLY prevented T-ALL initiation in 70% of Pten-mutant mice.
- ACLY promotes B-cell lymphoma (BCL-2) upregulation and inhibits apoptosis in premalignant thymocytes.
- PTEN-altered T-ALL cells exhibit ACLY activation and sensitivity to genetic targeting.
Conclusions
- ACLY activation is a critical metabolic vulnerability in PTEN-altered T-ALL.
- Targeting ACLY presents a potential therapeutic strategy for high-risk T-ALL patients.
- These findings highlight the importance of metabolic reprogramming in cancer development and treatment.
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