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Novel diagnostic method for B cell vitreoretinal lymphoma by identification of regulatory T cells and PD-1+ cytotoxic T lymphocytes in the vitreous via flow cytometry
British Journal of Ophthalmology ( IF 3.7 ) Pub Date : 2024-10-14 , DOI: 10.1136/bjo-2024-326240
Hideto Deguchi, Kenji Nagata, Tohru Inaba, Takanori Aoki, Hikaru Kitano, Chie Sotozono

Aims To investigate the significance of regulatory T cells (Tregs) and programmed cell death 1 (PD-1)+ cytotoxic T lymphocytes (CTLs) in the vitreous of patients with vitreoretinal lymphoma (VRL) and uveitis. Methods This study involved 51 patients with VRL and uveitis, 15 males and 36 females (mean age: 72 years, range: 51–86 years), who underwent vitrectomy at the Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan, from December 2019 to February 2024. All patients underwent lymphocyte surface antigen analysis via flow cytometry, and the proportion of Tregs in CD4+ T lymphocytes and PD-1+ CTLs in CD8+ T lymphocytes was measured. Results This study involved B cell VRL (B-VRL, n=16), sarcoidosis (n=8), human herpesvirus (HHV)-associated uveitis (n=7), human T cell lymphotropic virus type 1 associated uveitis (HAU, n=3) and unclassifiable uveitis (n=17) cases. The median proportions of Tregs were significantly lower in B-VRL (2.2%) compared with sarcoidosis (8.5%), HHV-associated uveitis (16.4%) and unclassifiable uveitis (10.1%) (p<0.05). Conversely, a significantly higher proportion of PD-1+ CTLs was found in B-VRL (95.6%) compared with sarcoidosis (61.1%), HHV-associated uveitis (67.1%) and unclassifiable (64.8%) (p<0.05). Receiver operating characteristic analysis of Tregs and PD-1+ CTLs proportions in B-VRL revealed high area under the curve values of 0.913 and 0.940, respectively. Conclusions Our findings indicate that analysis of the ratio of Tregs and PD-1+ CTLs via flow cytometry is helpful in diagnosing B-VRL. All data relevant to the study are included in the article or uploaded as supplementary information. All data relevant to the study are included in the article.

中文翻译:


通过流式细胞术鉴定玻璃体中的调节性 T 细胞和 PD-1+ 细胞毒性 T 淋巴细胞,治疗 B 细胞玻璃体视网膜淋巴瘤的新型方法



目的 探讨调节性 T 细胞 (Tregs) 和程序性细胞死亡 1 (PD-1)+ 细胞毒性 T 淋巴细胞 (CTL) 在玻璃体视网膜淋巴瘤 (VRL) 合并葡萄膜炎患者玻璃体中的意义。方法 本研究涉及 51 例 VRL 和葡萄膜炎患者,其中 15 例男性和 36 例女性 (平均年龄:72 岁,范围:51-86 岁),他们于 2019 年 12 月至 2024 年 2 月在日本京都府立医科大学眼科接受了玻璃体切除术。所有患者均采用流式细胞术进行淋巴细胞表面抗原分析,检测 CD4+ T 淋巴细胞中 Tregs 和 CD8+ T 淋巴细胞中 PD-1+ CTLs 的比例。结果 本研究涉及 B 细胞 VRL (B-VRL, n=16)、结节病 (n=8)、人疱疹病毒 (HHV) 相关葡萄膜炎 (n=7)、人嗜淋巴细胞病毒 1 型相关葡萄膜炎 (HAU, n=3) 和无法分类的葡萄膜炎 (n=17) 病例。与结节病 (8.5%) 、HHV 相关葡萄膜炎 (16.4%) 和无法分类的葡萄膜炎 (10.1%) 相比,B-VRL 中 Tregs 的中位比例 (2.2%) 显著降低 (p<0.05)。相反,与结节病 (61.1%) 、HHV 相关葡萄膜炎 (67.1%) 和无法分类 (64.8%) 相比,B-VRL 中发现的 PD-1+ CTL 比例 (95.6%) 显着更高 (p<0.05)。B-VRL 中 Tregs 和 PD-1+ CTLs 比例的受试者工作特征分析显示曲线下面积值分别为 0.913 和 0.940。结论 我们的研究结果表明,通过流式细胞术分析 Tregs 和 PD-1+ CTLs 的比率有助于诊断 B-VRL。与研究相关的所有数据都包含在文章中或作为补充信息上传。与该研究相关的所有数据都包含在文章中。
更新日期:2024-10-15
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