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Bone marrow mesenchymal stem cells regulate the dysfunction of NK cells via the T cell immunoglobulin and ITIM domain in patients with myelodysplastic syndromes
Cell Communication and Signaling ( IF 8.2 ) Pub Date : 2022-10-27 , DOI: 10.1186/s12964-022-00985-2
Zhaoyun Liu 1 , Yixuan Guo 1 , Lei Huang 1 , Yue Jia 1 , Hui Liu 1 , Fengping Peng 1 , Lixiang Duan 2 , Hongkai Zhang 3, 4 , Rong Fu 1
Affiliation  

Myelodysplastic syndrome (MDS) is a clonal disease of hematopoietic cells, characterized by hematopoietic cell hematopoiesis and a high risk of transformation into acute myeloid leukemia (AML). Although the underlying mechanism is unclear, MDS is often associated with immune system disorders, especially cellular immune abnormalities. We analyzed the number of lymphocyte subsets by flow cytometry assay and explored the alteration of lymphocyte subsets in MDS. Healthy controls, inpatients with primary MDS and patients with AML diagnosed from January 2017 to July 2021 were included. Flow cytometry assays were used to study lymphocyte subsets obtained from the bone marrow of the participants as well as changes in natural killer (NK) cell function. One-way analysis of variance and Student’s t-test were used to analyze the data. We found a reduction in the number and function of NK cells in patients with MDS. By further measuring the activating and inhibitory receptors on the surface of NK cells, we found that the T cell immunoglobulin and ITIM domain (TIGIT) was the highest expressed marker on NK cells. Additionally, the expression of CD155, which is the ligand of TIGIT, was significantly higher than expressions of CD112 and CD113 on bone marrow mesenchymal stem cells (BMSCs). The co-culture results of BMSCs and NK cells demonstrated that BMSCs regulate NK cells through the TIGIT/CD155 interaction, indicating that NK cells play a vital role in MDS progression. BMSCs regulate the function of NK cells via TIGIT/CD155.

中文翻译:

骨髓间充质干细胞通过 T 细胞免疫球蛋白和 ITIM 结构域调节骨髓增生异常综合征患者的 NK 细胞功能障碍

骨髓增生异常综合征(MDS)是一种造血细胞克隆性疾病,其特征是造血细胞造血异常,极易转化为急性髓性白血病(AML)。虽然潜在的机制尚不清楚,但 MDS 通常与免疫系统疾病,尤其是细胞免疫异常有关。我们通过流式细胞术分析了淋巴细胞亚群的数量,并探讨了 MDS 中淋巴细胞亚群的变化。健康对照、原发性 MDS 住院患者和 2017 年 1 月至 2021 年 7 月诊断的 AML 患者被纳入。流式细胞术分析用于研究从参与者的骨髓中获得的淋巴细胞亚群以及自然杀伤 (NK) 细胞功能的变化。使用单因素方差分析和学生 t 检验来分析数据。我们发现 MDS 患者 NK 细胞的数量和功能有所减少。通过进一步测量 NK 细胞表面的激活和抑制受体,我们发现 T 细胞免疫球蛋白和 ITIM 结构域 (TIGIT) 是 NK 细胞上表达最高的标志物。此外,TIGIT 的配体 CD155 的表达显着高于骨髓间充质干细胞 (BMSC) 上的 CD112 和 CD113 的表达。BMSCs和NK细胞的共培养结果表明BMSCs通过TIGIT/CD155相互作用调节NK细胞,表明NK细胞在MDS进展中起着至关重要的作用。BMSCs 通过 TIGIT/CD155 调节 NK 细胞的功能。我们发现 T 细胞免疫球蛋白和 ITIM 结构域 (TIGIT) 是 NK 细胞上表达最高的标志物。此外,TIGIT 的配体 CD155 的表达显着高于骨髓间充质干细胞 (BMSC) 上的 CD112 和 CD113 的表达。BMSCs和NK细胞的共培养结果表明BMSCs通过TIGIT/CD155相互作用调节NK细胞,表明NK细胞在MDS进展中起着至关重要的作用。BMSCs 通过 TIGIT/CD155 调节 NK 细胞的功能。我们发现 T 细胞免疫球蛋白和 ITIM 结构域 (TIGIT) 是 NK 细胞上表达最高的标志物。此外,TIGIT 的配体 CD155 的表达显着高于骨髓间充质干细胞 (BMSC) 上的 CD112 和 CD113 的表达。BMSCs和NK细胞的共培养结果表明BMSCs通过TIGIT/CD155相互作用调节NK细胞,表明NK细胞在MDS进展中起着至关重要的作用。BMSCs 通过 TIGIT/CD155 调节 NK 细胞的功能。BMSCs和NK细胞的共培养结果表明BMSCs通过TIGIT/CD155相互作用调节NK细胞,表明NK细胞在MDS进展中起着至关重要的作用。BMSCs 通过 TIGIT/CD155 调节 NK 细胞的功能。BMSCs和NK细胞的共培养结果表明BMSCs通过TIGIT/CD155相互作用调节NK细胞,表明NK细胞在MDS进展中起着至关重要的作用。BMSCs 通过 TIGIT/CD155 调节 NK 细胞的功能。
更新日期:2022-10-28
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