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Annals of Hematology

, Volume 97, Issue 9, pp 1731–1734 | Cite as

SNP-based next-generation sequencing reveals low-level mixed chimerism after allogeneic hematopoietic stem cell transplantation

  • Jieun Kim
  • In Sik Hwang
  • Saeam Shin
  • Jong Rak Choi
  • Seung-Tae Lee
Letter to the Editor
  • 140 Downloads

Dear Editor,

Allogeneic hematopoietic stem cell transplantation (HSCT) is an important treatment modality for various malignant and non-malignant hematological disorders. Although complete donor-derived hematopoiesis, i.e., complete chimerism, is a desirable outcome, relapse of the original malignancy after HSCT remains the most frequent cause of treatment failure and mortality [1]. Therefore, detection of the presence of recipient cellular components, referred to as chimerism monitoring, is critical for the prediction of clinical outcomes.

The detection of chimerism mainly employs molecular methods used in forensic sciences such as flow cytometry, cytogenetic analysis, fluorescence in situ hybridization, and short tandem repeat (STR)-based techniques; however, these have limited applicability and low detection sensitivity (in the range of 3–5%) [2]. At present, STR analysis is the most popular method for monitoring chimerism following allogeneic HSCT; however, this method suffers...

Abbreviations

HSCT

Hematopoietic stem cell transplantation

STR

Short tandem repeat

NGS

Next-generation sequencing

Notes

Funding information

This study was supported by a grant of the National Research Foundation of Korea (NRF-2015R1D1A1A01059210).

Compliance with ethical standards

The study was approved by the Institutional Review Board (IRB) of Severance Hospital (approval no. 4-2016-0869) for the retrospective chart reviews and studies of existing preserved specimens all collected from subjects agreed and signed the informed consent.

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Jieun Kim
    • 1
  • In Sik Hwang
    • 2
  • Saeam Shin
    • 3
  • Jong Rak Choi
    • 4
  • Seung-Tae Lee
    • 4
  1. 1.Department of Laboratory MedicineSoonchunhyang University Seoul Hospital, Soonchunhyang University College of MedicineSeoulRepublic of Korea
  2. 2.Brain Korea 21 PLUS Project for Medical ScienceYonsei University College of MedicineSeoulRepublic of Korea
  3. 3.Department of Laboratory MedicineHallym University College of Medicine, Kangnam Sacred Heart HospitalSeoulRepublic of Korea
  4. 4.Department of Laboratory MedicineYonsei University College of MedicineSeoulRepublic of Korea

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