Journal of Molecular Oncology Research

All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.
Reach Us +1 (202) 780-3397

Commentary - Journal of Molecular Oncology Research (2023) Volume 7, Issue 5

Independent myelodysplastic and Philadelphia chromosome positive clones coexisting in a hydroxyurea-treated patient

Justus Peschel *

Department of Internal Medicine, Technical University of Munich, Germany

*Corresponding Author:
Justus Peschel
Department of Internal Medicine
Technical University of Munich

Received:25-Aug-2023, Manuscript No. AAMOR-23-112354; Editor assigned:28-Aug-2023, PreQC No. AAMOR-23-112354 (PQ); Reviewed:11-Sep-2023, QC No. AAMOR-23-112354; Revised:16-Sep-2023, Manuscript No. AAMOR-23-112354 (R); Published:23-Sep-2023, DOI:10.35841/ aamor-7.5.194

Citation: Peschel J. Independent myelodysplastic and Philadelphia chromosome positive clones coexisting in a hydroxyurea-treated patient. J Mol Oncol Res. 2023;7(5):194

Visit for more related articles at Journal of Molecular Oncology Research


A crucial turning point in the study of cancer genetics was the discovery of the Philadelphia chromosome, a ground-breaking finding in the area of oncology. Known as Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) and Philadelphia chromosome-positive chronic myeloid leukemia (Ph+ CML), this chromosomal aberration was first discovered in 1960 by researchers Peter Nowell and David Hungerford. The Philadelphia chromosome fundamentally changes the genetic makeup of cells that are impacted, causing unchecked growth and aiding in the etiology of various malignancies [1].

A diverse set of illnesses known as hematological malignancies are characterized by the growth of abnormal blood cells. Genetic mutations that cause certain cell populations to proliferate out of control frequently play a role in these illnesses. Patients may occasionally have numerous separate clones with various cytogenetic abnormalities present at the same time. We provide a compelling example of a patient who had myelodysplastic syndrome (MDS) and acute lymphoblastic leukemia with a positive Philadelphia chromosome (Ph+ ALL), both of which developed and persisted separately while receiving hydroxyurea treatment. This extraordinary example highlights the complex interactions between many clonal populations and the difficulties it creates for diagnosis and therapy [2].

A bone marrow aspiration and biopsy served as the first step in the diagnosis and revealed distinctive dysplastic alterations in the bone marrow that were consistent with myelodysplastic syndrome (MDS). The existence of MDS-associated genetic abnormalities, which are frequently linked to an increased risk of developing acute leukemia, was further verified by cytogenetic analysis [3].

Hydroxyurea therapy was started in order to control the patient's cytopenias and reduce symptoms. To decrease aberrant cell proliferation, hydroxyurea is a cytoreductive medication frequently used to treat a variety of hematological illnesses, including MDS. Subsequent cytogenetic testing and molecular analysis revealed an unanticipated development that occurred throughout the hydroxyurea treatment. In addition to the MDS clone, a different clone containing the Philadelphia chromosome (Ph) was found. The Philadelphia chromosome is a defining genetic anomaly linked to a subset of cases of acute lymphoblastic leukemia (ALL) and chronic myeloid leukemia (CML). Its presence in this patient was suggestive of acute lymphoblastic leukemia with a positive Philadelphia chromosome (Ph+ ALL) [4].

Independent MDS and Ph+ ALL clones coexisting in the same patient are a very uncommon occurrence. Different hematological malignancies developed as a result of specific genetic defects present in each clone. This poses important concerns concerning the genesis of these clones, their connections to one another, and how hydroxyurea treatment might have impacted their emergence and persistence [5].


Unusual phenomenon in the world of hematological malignancies is the coexistence of independent myelodysplastic and Philadelphia chromosome-positive clones in a single patient undergoing hydroxyurea therapy. This example emphasizes the importance of thorough genetic screening and continuous monitoring to inform treatment decisions and guarantee the best results for individuals with such particular hematologic difficulties. It also emphasizes the necessity of a multidisciplinary approach in managing complex situations.


  1. Felber MT. Molecular analysis of progression in rat skin tumors induced by high and low LET radiation. New York Univer; 1993.
  2. Google Scholar

  3. Cannas G, Poutrel S, Heiblig M, et al. Sickle cell disease and acute leukemia: One case report and an extensive review. Ann Hematol. 2023;102(7):1657-67.
  4. Indexed at, Google Scholar, Cross Ref

  5. Schischlik F, Kralovics R. Mutations in myeloproliferative neoplasms–their significance and clinical use. Expert Rev Hematol. 2017;10(11):961-73.
  6.  Google Scholar

  7. Hasserjian RP. Chronic myelogenous leukemia. Neopl Hemato: Experi Clinical Approa. 2010:193-211.
  8. Google Scholar

  9. YUSUF BJ. Assessing the effects of an adhesion molecule (cd36) and haemoglobin-f levels on disease severity in adults with sickle cell anaemia in kano nigeria. Internal Medic. 2015.
  10. Google Scholar

Get the App