Novel roles of reactive oxygen species in the pathogenesis of acute myeloid leukemia

Fuling Zhou1, Qiang Shen, François X Claret

  • 1Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.

Insights

Reactive oxygen species (ROS) are crucial in cell signaling and cancer development. Understanding ROS in acute myeloid leukemia (AML) pathogenesis can lead to new redox therapies.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Oncology

Background:

  • Reactive oxygen species (ROS) are vital for cell signaling and homeostasis.
  • ROS accumulation induces oxidative stress, contributing to cancer development, progression, and persistence.
  • Redox dysregulation by ROS impacts leukemic cell proliferation, differentiation, immune evasion, and survival.

Purpose of the Study:

  • To review recent findings on the role of ROS in acute myeloid leukemia (AML) pathogenesis.
  • To outline innovative redox-based therapeutic strategies for myeloid malignancies.

Main Methods:

  • Literature review of recent research on ROS and leukemogenesis.
  • Analysis of ROS signaling pathways in leukemia.
  • Exploration of redox therapy approaches for myeloid malignancies.

Main Results:

  • ROS act as signaling molecules, regulating key factors in leukemic cell survival and progression.
  • Redox dysregulation is a significant factor in AML development and maintenance.
  • Targeting ROS pathways presents potential for novel therapeutic interventions.

Conclusions:

  • A comprehensive understanding of ROS in leukemogenesis is essential for developing targeted therapies.
  • Redox therapies offer promising innovative approaches for treating myeloid malignancies.
  • Further research into ROS modulation could significantly improve AML treatment outcomes.

Related Concept Videos

Differentiation of Common Myeloid Progenitor Cells01:15

Differentiation of Common Myeloid Progenitor Cells

Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
Disorders of Leukocytes01:27

Disorders of Leukocytes

Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune system...
Regulation of Hematopoietic Stem Cells01:01

Regulation of Hematopoietic Stem Cells

All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Erythropoiesis01:14

Erythropoiesis

Red blood cells  (RBCs) transport oxygen to all body tissues. These cells survive only for 120 days and then need to be replenished. Erythropoiesis is the process of RBC production. In healthy individuals, erythropoiesis ensures all tissues are amply supplied with oxygen. In addition, blood loss due to injury leads to a drop in the physiological oxygen level that will cause erythropoiesis. Any defect in erythropoiesis leads to several physiological disorders, including thalassemia, anemia, and...