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GAO Guanlun, ZHOU Xuan, XU Na, LIU Xiaoli, WEI Ting, LI Qingshan. Clinical Characteristics of Chronic Myeloid Leukemia Patients with Deletion and Non-deletion of ASS Gene on Derivative Chromosome 9[J]. Cancer Research on Prevention and Treatment, 2023, 50(3): 283-287. DOI: 10.3971/j.issn.1000-8578.2023.22.0701
Citation: GAO Guanlun, ZHOU Xuan, XU Na, LIU Xiaoli, WEI Ting, LI Qingshan. Clinical Characteristics of Chronic Myeloid Leukemia Patients with Deletion and Non-deletion of ASS Gene on Derivative Chromosome 9[J]. Cancer Research on Prevention and Treatment, 2023, 50(3): 283-287. DOI: 10.3971/j.issn.1000-8578.2023.22.0701

Clinical Characteristics of Chronic Myeloid Leukemia Patients with Deletion and Non-deletion of ASS Gene on Derivative Chromosome 9

Funding: 

Guangdong Natural Science Foundation 2214050003863

Guangzhou Health Science and Technology Fund 20221A010013

Guangzhou Red Cross Hospital Project Fund 2016-43

More Information
  • Corresponding author:

    LI Qingshan,E-mail: drliqingshang@126.com

  • Received Date: June 21, 2022
  • Revised Date: September 04, 2022
  • Available Online: January 12, 2024
  • Objective 

    To investigate the clinical characteristics of patients with chronic myeloid leukemia (CML) in chronic phase with deletion and non-deletion of the argininosuccinate synthesis gene (ASS gene) on the derivative chromosome 9.

    Methods 

    The clinical data of patients with CML initially treated with imatinib and BCR/ABL1/ASS1 3-color fusion probe to detect ASS gene deletion were analyzed. The patients were divided into deletion group (n=27) and non-deletion group (n=92). Clinical characteristics, treatment effects, and prognosis were analyzed.

    Results 

    The average age of 119 patients was 37.22±12.72 years old. The sokal score differed between the deletion and non-deletion groups (χ2=4.304, P=0.038). No statistically significant difference in other general characteristics was found (P > 0.05). The 3-month CCyR rate, 6-month CCyR rate, and BCR-ABLIS≤ 1% rate in the deletion group were lower than those in the non-deletion group (P < 0.05). The median follow-up of 119 patients was 35.0 (3.0-60.0) months. The PFS in the deletion group was lower than that in the non-deletion group (χ2=4.293, P=0.038). Overall survival was not significantly different between the two groups (χ2=0.008, P=0.931).

    Conclusion 

    The deletion of the ASS gene in patients with chronic CML is related to the poor efficacy of imatinib treatment, poor prognosis, and high risk of disease progression.

  • Competing interests: The authors declare that they have no competing interests.

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