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Updated: May 26, 2026

VDJ-Seq: Deep Sequencing Analysis of Rearranged Immunoglobulin Heavy Chain Gene to Reveal Clonal Evolution Patterns of B Cell Lymphoma
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Published on: December 28, 2015

Clonal evolution in aplastic anemia.

Manuel G Afable1, Ramon V Tiu, Jaroslaw P Maciejewski

  • 1Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH 44195, USA.

Hematology. American Society of Hematology. Education Program
|December 14, 2011
PubMed
Summary
This summary is machine-generated.

Immunosuppressive treatment (IST) helps aplastic anemia (AA) patients, but clonal diseases like MDS are serious risks. SNP array karyotyping offers precise detection of chromosomal defects in AA for better diagnosis.

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Published on: July 11, 2019

Area of Science:

  • Hematology
  • Genetics
  • Oncology

Background:

  • Aplastic anemia (AA) is often treated with immunosuppressive therapy (IST), achieving good survival rates.
  • Refractory cases of AA have seen improved survival, but long-term complications persist.
  • Clonal evolution to paroxysmal nocturnal hemoglobinuria (PNH) and myelodysplastic syndrome (MDS) are significant risks in AA patients.

Purpose of the Study:

  • To highlight the importance of detecting chromosomal abnormalities in aplastic anemia.
  • To introduce advanced diagnostic tools for identifying chromosomal defects.
  • To emphasize the need for definitive therapy like bone marrow transplantation when indicated.

Main Methods:

  • Review of current immunosuppressive treatment (IST) efficacy in aplastic anemia (AA).
  • Discussion of long-term complications including clonal evolution to PNH and MDS.
  • Evaluation of newer diagnostic technologies like single nucleotide polymorphism (SNP) array-based karyotyping for chromosomal abnormality detection.

Main Results:

  • IST achieves remission in 50%-70% of AA patients with good long-term survival.
  • Chromosomal abnormalities, particularly monosomy 7, are clinically significant in AA.
  • SNP array karyotyping shows promise for precise detection of chromosomal defects without requiring cell division.

Conclusions:

  • Early detection of chromosomal abnormalities in AA is crucial for patient management.
  • Advanced genomic technologies like SNP array karyotyping can improve diagnostic accuracy.
  • Identifying high-risk patients may guide decisions towards definitive treatments like bone marrow transplantation.