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急性淋巴细胞白血病中的微小残留病及其与其他预后因素的关系。

Minimal Residual Disease in Acute Lymphoblastic Leukaemia and Its Relationship with Other Prognostic Factors.

作者信息

Agrawal Chinmayee, Boppana Sai Madhuri, Devdas Santhosh K, Maka Vinayak V, Kilara Nalini, Majumdar Swaratika, Palassery Rasmi

机构信息

Department of Medical Oncology, Ramaiah Medical College, Bengaluru, India.

Department of Medical Oncology, NRI Medical College and Hospital, Mangalagiri, Andhra Pradesh, India.

出版信息

Int J Hematol Oncol Stem Cell Res. 2025 Jan 1;19(1):37-42. doi: 10.18502/ijhoscr.v19i1.17822.

Abstract

: Minimal Residual Disease (MRD) assessment is crucial for directing treatment decisions in Acute Lymphoblastic Leukemia (ALL). In low- and middle-income countries, limited resources can present challenges to implementing MRD-guided therapy intensification for ALL. The study attempted to assess the relationship between MRD and other prognostic factors in ALL, focusing on treatment outcomes and disease progression. A retrospective observational study was conducted at Ramaiah Medical College and Hospital in Bengaluru, examining patient data from January 2021 to December 2021. MRD status was determined post-induction using flow cytometry. Patients were classified into various groups based on factors such as type of ALL (B-cell or T-cell), NCI risk status (standard or high), cytogenetic risk (favorable, poor, or intermediate), CNS status, prednisone response, and MRD levels at the end of induction. Out of 72 patients, 25% were MRD-positive, with a male: female ratio of 2.13:1. B-ALL was diagnosed in 49 patients and T-ALL in 23, with 75% categorized as high-risk by NCI criteria. Cytogenetic analysis revealed a diverse profile (23.61% PR, 48.61% IR, 27.78% FR), and 58.33% exhibited a good prednisone response (GPR). At the end of the induction phase, 25% tested positive for MRD, with B-ALL showing a lower MRD rate at 15.2%. Age and NCI risk status significantly influenced MRD outcomes, with 75% of participants classified as high-risk. This study demonstrates a significant association between MRD positivity and factors such as age, NCI risk status, and B-ALL diagnosis, underscoring the complex interaction of these variables in predicting treatment outcomes for ALL patients.

摘要

微小残留病(MRD)评估对于指导急性淋巴细胞白血病(ALL)的治疗决策至关重要。在低收入和中等收入国家,资源有限可能给实施ALL的MRD指导的强化治疗带来挑战。该研究试图评估ALL中MRD与其他预后因素之间的关系,重点关注治疗结果和疾病进展。在班加罗尔的拉马亚医学院和医院进行了一项回顾性观察研究,检查了2021年1月至2021年12月的患者数据。诱导后使用流式细胞术确定MRD状态。根据ALL类型(B细胞或T细胞)、NCI风险状态(标准或高)、细胞遗传学风险(良好、不良或中等)、中枢神经系统状态、泼尼松反应以及诱导结束时的MRD水平等因素将患者分为不同组。在72例患者中,25%为MRD阳性,男女比例为2.13:1。49例患者诊断为B-ALL,23例为T-ALL,75%根据NCI标准分类为高危。细胞遗传学分析显示出不同的特征(23.61%为良好风险,48.61%为中等风险,27.78%为不良风险),58.33%表现出良好的泼尼松反应(GPR)。在诱导期结束时,25%的患者MRD检测呈阳性,B-ALL的MRD率较低,为15.2%。年龄和NCI风险状态显著影响MRD结果,75%的参与者被分类为高危。这项研究表明MRD阳性与年龄、NCI风险状态和B-ALL诊断等因素之间存在显著关联,强调了这些变量在预测ALL患者治疗结果中的复杂相互作用。

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