Pathogenic Pre-Leukemic Mutations in Myeloid Diseases
Author Information
Author(s): Zhang Jing
Primary Institution: University of Wisconsin-Madison
Hypothesis
ASXL1G646WfsX12 and NRASG12D mutations belong to the pathogenic pre-leukemic mutations, which easily incorporate additional mutations in leukemogenesis rather than remain stable in CHIP.
Conclusion
Some pathogenic pre-leukemic mutations are rarely found in patients with clonal hematopoiesis of indeterminate potential (CHIP), despite being common in myeloid diseases.
Supporting Evidence
- CHIP is linked to aging and increases the risk for blood cancers and other diseases.
- The ASXL1G646WfsX12 mutation is found in ~18% of myeloid disease patients but rarely in CHIP patients.
- The NRASG12D mutation affects hematopoietic stem cell behavior in different ways.
Takeaway
Some mutations that can lead to blood cancer are not found in healthy older people with certain blood cell changes, but they are common in people who have blood cancers.
Methodology
Using a knockin animal model (Atm/+), the study investigates the expansion of hematopoietic stem cells in aged mice.
Participant Demographics
Healthy elderly individuals and patients with myeloid diseases.
Digital Object Identifier (DOI)
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