A flow cytometric approach to compare stem cell apoptosis in aplastic anemia and hypoplastic myelodysplastic syndrome.

Medhat Ibrahim, Ashraf Khodeary, Shereen P Aziz, Mahmoud G Mahmoud, Asmaa A Abdel-Baset, Tamer Mohamed, Sherif A Sayed
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Abstract

Background and objectives: Aplastic anemia (AA) is a disease caused by bone marrow (BM) failure. There are many similarities between AA and hypoplastic myelodysplastic syndrome (MDS); hence, differentiating them could be problematic. The current study aimed to use the new technique of flow cytometry as a possible diagnostic tool for AA and hypoplastic MDS.

Patients and methods: The BM mononuclear cell (BMMC) and blood samples from 44 participants (17 patients with AA, 13 with hypoplastic MDS, and 14 healthy controls) were collected. The flow cytometric analysis of the cluster of differentiation 34 (CD34) levels and cell apoptosis was performed for all sample types.

Results: Patients with hypoplastic MDS showed a high percentage of CD34+ cells with low apoptosis, while those with AA showed a low percentage of CD34+ cells with high apoptosis.

Conclusions: Despite the similarity in the clinical presentation of hypoplastic MDS and AA, they are biologically different disorders. Increased CD34+ cell numbers with high viability may provide a useful and accurate tool for the differential diagnosis of hypoplastic MDS from AA.

比较再生障碍性贫血和骨髓增生异常综合征干细胞凋亡的流式细胞仪方法。
背景和目的:再生障碍性贫血(AA)是一种由骨髓(BM)功能衰竭引起的疾病。再生障碍性贫血与低增生性骨髓增生异常综合征(MDS)之间有许多相似之处,因此,将它们区分开来可能存在问题。本研究旨在使用流式细胞术这一新技术作为 AA 和发育不全骨髓增生异常综合征的可能诊断工具:收集了44名参与者(17名AA患者、13名发育不全MDS患者和14名健康对照者)的骨髓单核细胞(BMMC)和血液样本。对所有样本类型进行了分化簇 34(CD34)水平和细胞凋亡的流式细胞分析:结果:发育不全 MDS 患者的 CD34+ 细胞比例高,细胞凋亡率低;而 AA 患者的 CD34+ 细胞比例低,细胞凋亡率高:结论:尽管发育不全 MDS 和 AA 的临床表现相似,但它们在生物学上是不同的疾病。具有高存活率的 CD34+ 细胞数量的增加可为下胚层 MDS 与 AA 的鉴别诊断提供有用而准确的工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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