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Genetic predisposition in acute leukaemia.

Meredith Wiggins1, William Stevenson1

  • 1Department of Haematology, Royal North Shore Hospital, St Leonards, NSW, Australia.

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Summary

Germline mutations in leukaemia susceptibility genes are found in some myelodysplasia (MDS) and acute leukaemia (AL) patients. Identifying these genetic variants is crucial for diagnosing and managing leukaemia predisposition syndromes.

Keywords:
acute leukaemiasgenetics

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Area of Science:

  • Hematology
  • Genetics
  • Oncology

Background:

  • A subset of patients with myelodysplasia (MDS) and acute leukaemia (AL) harbor germline mutations.
  • These mutations predispose individuals to myeloid neoplasms and, less commonly, acute lymphoblastic leukaemia (ALL).
  • The WHO classification (2016) now recognizes myeloid neoplasms with germline predisposition, highlighting clinical significance.

Purpose of the Study:

  • To review the biology, genetics, and clinical features of germline mutations predisposing to leukaemia.
  • To discuss the increasing identification of leukaemia predisposition syndromes due to advances in genetic testing.

Main Methods:

  • Literature review and synthesis of existing data on germline mutations in MDS and AL.
  • Summary of biological, genetic, and clinical characteristics of identified conditions.

Main Results:

  • Germline mutations in leukaemia susceptibility genes are identified in a proportion of MDS/AL patients.
  • Most variants are linked to myeloid neoplasms, while others are associated with ALL.
  • Recent advances in genetic technology are increasing the identification of these syndromes.

Conclusions:

  • Germline predisposition is an important factor in a subset of leukaemia cases.
  • Awareness and genetic testing are essential for diagnosing and managing these inherited conditions.
  • Further research into these genetic variants will improve patient care.