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Regulatory Role of Zinc in Acute Promyelocytic Leukemia: Cellular and Molecular Aspects with Therapeutic Implications
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Regulatory Role of Zinc in Acute Promyelocytic Leukemia: Cellular and Molecular Aspects with Therapeutic Implications
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Journal Article
Regulatory Role of Zinc in Acute Promyelocytic Leukemia: Cellular and Molecular Aspects with Therapeutic Implications
2025
Overview
Acute promyelocytic leukemia (APL) is a rare subtype of acute myeloid leukemia (AML) characterized by chromosomal translocation forming the fusion protein that blocks the differentiation of myeloid progenitors and increases the self-renewal of leukemia cells. The introduction of all-trans retinoic acid (ATRA) and arsenic trioxide (ATO) has dramatically improved outcomes in APL, making it a leading example of successful treatment through differentiation of cancer cells. However, life-threatening side effects and treatment resistance may develop; therefore, modulation of the safety and efficacy of these drugs may contribute to further improving treatment results. Recently, zinc, involved in the structure and function of transcription factors, has received special attention for its potential role in the development and treatment response of cancer. Zinc homeostasis is disrupted in APL, with intracellular accumulation stabilizing oncogenic proteins. Zinc depletion promotes degradation of PML–RARA and induces apoptosis, while supplementation enhances genotoxic stress in leukemic cells but protects normal hematopoiesis. Zinc also regulates key transcription factors involved in differentiation and proliferation, including RUNX2, KLF4, GFI1, and CREB. In this review, we examine how zinc may impact zinc-finger (ZnF) and non-ZnF transcription factors and differentiation therapy in APL, thereby identifying potential strategies to enhance treatment efficacy and minimize side effects.
Publisher
MDPI AG,Multidisciplinary Digital Publishing Institute (MDPI)
Subject
/ Animals
/ Antineoplastic Agents - pharmacology
/ Antineoplastic Agents - therapeutic use
/ Arsenic
/ Arsenic Trioxide - therapeutic use
/ Cancer
/ Genes
/ Humans
/ Leukemia
/ Leukemia, Promyelocytic, Acute - drug therapy
/ Leukemia, Promyelocytic, Acute - genetics
/ Leukemia, Promyelocytic, Acute - metabolism
/ Leukemia, Promyelocytic, Acute - pathology
/ Proteins
/ Review
/ Toxicity
