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心理干预及癌痛规范化治疗对癌症患者T细胞表面PD―1、Tim―3的影响

  [摘要] 目的 探究心理干?A及癌痛规范化治疗对癌症患者T细胞表面PD-1、Tim-3的影响。方法 方便选取2015年6月―2016年11月该院接受规范化镇痛治疗的80例癌痛患者,按随机数字表法分为研究组和对照组,每组40例。两组患者均接受规范化癌痛治疗,对照组实施常规护理,研究组接受心理医师的心理干预。采用疼痛强度数字分级法(NRS)评价两组患者治疗前后的疼痛情况;流式细胞仪检验两组患者治疗前后外周血CD4+T细胞和CD8+T细胞表面PD-1和Tim-3表达情况。结果 NRS评分统计显示,研究组与对照组治疗前分别为(4.76±1.10)分和(4.75±0.91)分,治疗后分别为(1.31±0.42)分和(2.03±0.71)分,治疗后研究组患者的NRS评分显著低于对照组,差异有统计学意义(P<0.05);治疗后研究组患者CD4+T细胞表面PD-1、Tim-3表达水平显著低于对照组,CD8+T细胞表面PD-1水平显著低于对照组,差异有统计学意义(P<0.05)。结论 心理干预联合癌痛规范化治疗能够有效的减轻患者的疼痛程度,同时能够影响T细胞亚群的分布,降低癌痛患者外周血中Tim-3+、PD-1+表达的T细胞数量,提高患者的免疫力,减轻患者的疼痛。
  [中图分类号] R714 [文献标识码] A [文章编号] 1674-0742(2017)03(b)-0037-04
  [Abstract] Objective To study the effect of mental intervention and standardized treatment of cancer pains on the T cell surface PD-1 and Tim-3 of cancer patients. Methods Convenient selection 80 cases of cancer pain patients treated with standardized analgesia in our hospital from June 2015 to November 2016 were selected and randomly divided into two groups with 40 cases in each, both groups received the standardized treatment of cancer pains, the control group adopted the routine nursing, while the research group adopted the mental intervention of psychologists, and the pain degree before and after treatment of the two groups was evaluated by NRS, and the peripheral blood CD4+T cell and expression of CD8+T cell surface PD-1 and Tim-3 before and after treatment of the two groups was tested by the flow cytometer. Results The NRS score in the research group and in the control group before treatment was respectively (4.76±1.10)points and (4.75±0.91)points and (1.31±0.42 )points and (2.03±0.71)points after treatment, and the NRS score in the research group was obviously lower than that in the control group after treatment, and the difference had statistical significance(P<0.05), after treatment, the expression level of CD4+T cell surface PD-1 and Tim-3 in the research group was obviously lower than that in the control group, and the CD8+T cell surface PD-1 level was obviously lower than that in the control group, and the difference had statistical significance(P<0.05). Conclusion The mental intervention and standardized treatment of cancer pains can effectively relieve the pains degree of patients, influence the distribution of T cell subgroups and decrease the T cell number of Tim-3+ and PD-1+ in the peripheral blood, improve the immunity of patients and relieve the pains of patients.
  [Key words] Cancer; Immune cell; PD-1; Tim-3; Standardized treatment; Mental intervention   实际上,神经-内分泌-免疫之间的网络调节,预示着疼痛应激可能是影响免疫机能的一个重要因素。相关研究表明[10],镇痛良好的肝癌患者调节性T细胞(Treg)表?_与未经镇痛的肝癌患者存在显著差异,尽管机制并不十分明确,但至少反应了癌痛与免疫细胞之间的关联,以及疼痛在一定程度上是影响机体免疫系统,导致免疫抑制的一个重要因素。更为有趣的是,一定的心理干预治疗能够很好的帮助晚期癌症患者减轻疼痛,提高生活质量;合理的心理干预能够改变肺癌患者各种类型T细胞的比例、提高患者的免疫力,从而减轻术后的疼痛[11]。该研究显示,癌痛规范化治疗可以明显降低患者的NRS评分;增加心理干预治疗后患者NRS评分亦明显低于单纯癌痛治疗组;在充分证明癌痛规范化治疗有效性基础上,进一步证实了心理干预在有效的减轻患者疼痛程度方面的积极意义。从两组患者治疗前后外周T细胞亚群的变化结果来看,规范化治疗及心里干预确实在一定程度上改善了患者的免疫功能。治疗前两组患者外周血CD4+T细胞和CD8+T细胞表面PD-1和Tim-3表达水平对比差异无统计学意义P>0.05)。治疗后研究组患者CD4+T细胞亚群中PD-1+、Tim-3+细胞群百分比中位数分别为5.71%、2.21%;CD8+T细胞亚群中PD-1+细胞群百分比中位数为6.13%。与对照组相比表达明显降低,差异有统计学意义(P<0.05)。这说明在心理干预下研究组患者T细胞中的PD-1和Tim-3表达下调,一定程度上改善了患者的免疫功能。为心理干预参与癌痛患者免疫功能调节提供了依据;充分肯定了心理干预、癌痛管理在提高临床疗效方面的价值及实际意义。但也有学者研究显示[12]癌痛患者进行心理干预前CD4+ Tim-3+PD-1+的表达水平为(1.4±0.50),干预后表达水平降为(0.9±0.20),提示Tim-3+PD-1+双阳性的T细胞表达同样与患者的心理状况有关,但这一点并未在该文数据中体现,虽然干预后患者的Tim-3+PD-1+所有降低,但与干预前对比并无显著差异,考虑是否与观察时间短有关[12]。
  综上所述,心理干预联合癌痛规范化治疗能够有效的减轻患者的疼痛程度、降低T细胞表面PD-1、Tim-3的表达,在一定程度上改善免疫机能减少疼痛所致的免疫抑制,值得在临床上推广和应用。

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