食管鳞癌患者手术前后外周血T细胞亚群与NK、NKT细胞检测的临床意义

目的：分析食管鳞癌患者手术前后外周血中T淋巴细胞亚群与NK、NKT细胞变化规律及其临床意义.方法：应用流式细胞术检测78例食管鳞癌患者外周血中T淋巴细胞亚群及NK、NKT细胞的水平.结果：肿瘤切除术前NKT细胞水平在中低分化组较高分化组显著下降（P〈0.05）;术后外周血中CD8＋T细胞含量明显降低（P〈0.01）,CIM＋/CD8＋比值显著升高（P〈0.01）,同时NK与NKT细胞水平较术前显著下降（P〈0.01）.结论：手术可一定程度改善患者机体免疫功能,检查手术前后外周血T淋巴细胞亚群及NK、NKT细胞水平有助于患者的细胞免疫功能监测,为食管鳞癌临床治疗提供依据.     

肺癌患者手术前后NK细胞及T细胞亚群的变化

 本文通过对 5 6例肺癌患者手术前后外周血ＮＫ细胞活性、Ｔ细胞亚群的动态观察 ,探讨外科手术对肺部患者细胞免疫功能的影响。1　资料与方法1.1　研究资料　肺癌 5 6例 ,男 4 5例 ,女 11例 ,年龄 2 3～ 75岁 ,平均年龄 6 1.5岁。肺癌根治术者 2 0例 ,非根治术者36例。全部患者均为来我院的初治患者 ,并经手术后病理学检查确诊 ,术前 1周内体温、血象正常 ,肝肾功能正常 ,未用影响免疫功能的药物。 4 6例健康人血标本 ,来自我院体检的正常志愿者。1.2　方法1.2 .1　ＮＫ细胞活性检测采用ＳＡＰ法 ,Ｔ淋巴细胞亚群检测采用ＳＰ法 ,上述试剂盒均由北京中山生物技术有限公司提供。1.2 .2　所有肺癌病例均于术前 1周内 ,术后 2 1天空腹抽取用肝素抗凝的外周血 ,进行ＮＫ细胞及Ｔ细胞亚群的检测。1.2 .3　统计学处理　所有数据资料均使用ＰＥＭＳ软件进行方差分析及ｔ检验。2　结果　　术前及术后 2 1天根治组与非根治组ＮＫ细胞活性及Ｔ细胞亚群变化。　　肺癌患者细胞免疫功能低下 ,其ＮＫ细胞活性及ＣＤ3 + 、ＣＤ4+ 明显低于对照组 ,而ＣＤ8+ 则显著增加 ,致使ＣＤ4+ /Ｃ...     

非霍奇金淋巴瘤患者外周血T细胞亚群及NK细胞检测的临床意义

目的 探讨非霍奇金淋巴瘤(NHL)患者外周血T细胞亚群及NK细胞检测的临床意义.方法 收集病理确诊的初治NHL患者62例,采集静脉血经流式细胞术检测T细胞亚群及NK细胞水平,与30名健康对照者进行比较；并比较不同年龄、性别、病理类型患者之间的表达差异,分析其与临床分期、国际预后指数(IPI)、有无B症状等因素的相关性.结果 NHL组外周血CD3、CD4、NK细胞比例[(64.13±19.83)％、(27.10±8.20)％、(13.51±10.59)％]低于健康对照组[(65.78±10.69)％、(31.95±12.74)％、(18.76±7.36)％](P＜0.05)；CD8、调节性T细胞(Treg细胞)比例[(32.15±13.83)％、(10.44±3.00)％]高于健康对照组[(29.25±12.35)％、(7.51±4.36)％](P＜0.05).NHL患者≤60岁组CD3、NKT细胞比例[(67.06±19.24)％、(4.91±3.69)％]明显高于＞60岁组[(59.18±20.33)％、(4.89±3.05)％](P＜0.05),T细胞NHL组Treg细胞比例明显高于B细胞NHL组[(8.17±6.41)％比(7.11±2.53)％](P＜0.05).NHL患者外周血CD3、CD4、NK、NKT细胞比例与临床分期相关(均P＜ 0.05)；CD8细胞比例与IPI相关(P=0.000)；Treg细胞比例与IPI、B症状相关(均P＜ 0.05).结论 NHL患者存在细胞免疫抑制,其外周血T细胞亚群及NK细胞比例在不同性别、年龄、病理亚型之间存在不同,与临床分期、IPI、有无B症状等的相关性尚需进一步探讨.     

弥漫大B细胞淋巴瘤患者外周血T淋巴细胞亚群与NK细胞检测的临床意义

 【摘要】　目的　探讨弥漫大B细胞淋巴瘤（DLBCL）患者化疗前后外周血T淋巴细胞亚群、NK细胞的变化与治疗效果的关系。方法　收集经病理确诊且治疗有效的DLBCL患者47例,分别于化疗前及化疗第2个周期、第4个周期结束后第3天采集静脉血,经流式细胞术测定T淋巴细胞亚群及NK细胞,比较化疗前与化疗后T淋巴细胞亚群、NK细胞水平的差异,并与同期健康体检者50名进行比较。结果　DLBCL患者组化疗前外周血CD+3、CD+4、CD+4／CD+8、NK细胞表达水平[（70.04±8.87）%、（42.79±6.06）%、（1.68±0.59）%、（14.40±6.02）%]较健康对照组[（63.89±6.67）%、（32.72±5.77）%、（0.85±0.25）%、（9.95±5.24）%]低（P＜0.05）,而CD+8细胞表达水平较健康对照组高[（27.21±6.54）%比（39.92±7.11）%]（P＜0.05）。DLBCL患者组化疗第4个周期外周血CD+3、CD+4、CD+4／CD+8表达水平与化疗第2个周期相比差异均有统计学意义（均P＜0.05）,该组患者化疗第4个周期CD+3、CD+4、CD+8、CD+4／CD+8、NK细胞表达水平与治疗前相比差异均有统计学意义（均P＜0.05）。结论　初治DLBCL患者体内存在着免疫抑制,外周血T淋巴细胞亚群及NK细胞可作为反映DLBCL患者机体细胞免疫功能的较好参数,在临床上可用于免疫功能的监测,为DLBCL治疗方案的选择提供指导意义。     

食管癌放疗前后外周血T细胞亚群的变化

目的；探讨食管癌患者放疗前及放疗后外周血Ｔ细胞亚九的变化，方法：对３６例患者和２例健康献血员用碱性磷酸酶碱性酶桥标单克隆抗体法进行检测结果：食管癌患者与正常对照比较ＣＤ４细胞、ＣＤ４／ＣＤ８比值降低；ＣＤ８细胞增高，放疗后与放疗前比较ＣＤ３细胞、ＣＤ８细胞降低；ＣＤ４／ＣＤ８比值增高。低于正常组ＣＤ４／ＣＤ８比值下限的１５例患者１的内复发或出现癌转移者的有１１例，高于比值的２１例中仅有３例复发或出     

乳腺癌患者外周血T淋巴细胞及NK细胞的检测及其临床意义

目的:探讨乳腺癌患者外周血T淋巴细胞亚群和NK细胞活性的临床意义。方法:采用流式细胞仪测定乳腺癌患者外周血T淋巴细胞亚群和NK细胞的活性,以正常人作对照。结果:乳腺癌患者外周血CD3 ,CD4 ,NK细胞数量及CD4 /CD8 比值较正常对照组均明显下降(P<0.05),而CD8 细胞水平显著升高。外周血T淋巴细胞亚群和NK细胞数量的改变与乳腺癌临床病理指标有关,分期越晚,CD3 细胞、CD4 细胞、CD4 /CD8 细胞比值及NK细胞数量越低,CD8 细胞水平越高;I、II期乳腺癌患者与III、IV期患者之间有显著差异(P<0.05)。结论:乳腺癌患者细胞免疫功能低下,且临床病理分期越晚,其免疫功能越低,检测T淋巴细胞亚群、NK细胞可用于乳腺癌患者的免疫监测。     

胃肠道恶性肿瘤患者NK细胞和T细胞亚群的改变

胃肠道恶性肿瘤患者ＮＫ细胞和Ｔ细胞亚群的改变曹健乔颖陈大伟我们用流式细胞仪观察了ＮＫ细胞和Ｔ细胞亚群变化与胃肠道恶性肿瘤的发病关系。材料和方法胃癌和大肠癌患者共６３例，年龄５６±１２．３２岁。另取非消化道恶性患者２４例作为对照，其中腹股沟斜疝７例，大...     

喉咽鳞癌患者外周血T淋巴细胞亚群和NK细胞活性分析

背景与目的:T淋巴细胞亚群及NK细胞是主要的细胞免疫形式,通过对两者的研究可以了解细胞免疫在肿瘤发生、发展的作用。喉咽鳞癌患者可能存在一定程度的细胞免疫缺陷,本研究是通过检测外周血T淋巴细胞亚群及NK细胞活性,了解喉咽鳞癌患者的细胞免疫功能。方法:用流式细胞仪对78例喉咽鳞癌患者的外周血进行T淋巴细胞亚群及NK细胞活性的检测,并取20例非肿瘤患者的外周血作为对照组。结果:喉咽鳞癌患者组较非肿瘤患者组CD4淋巴亚群、CD4/CD8比值下降,CD8淋巴亚群升高;NK细胞活性下降。T3～4组较T1～2组、N 组较N0组都有CD4淋巴亚群、CD4/CD8比值下降;NK细胞活性下降。中低分化组CD4淋巴亚群、CD4/CD8比值下降(均P<0.05)。结论:喉咽鳞癌患者CD4T淋巴细胞亚群及NK细胞活性受到抑制,细胞免疫功能降低;检查外周血T淋巴细胞亚群及NK细胞活性有助于喉咽鳞癌患者的细胞免疫功能监测。     

恶性淋巴瘤患者NK细胞活性及T细胞亚群的研究

目的：探讨恶性淋巴瘤患者ＮＫ细胞活性及Ｔ细胞亚群在治疗后的变化。方法：运用ＭＴＴ和ＡＰＡＡＰ法分别检测４６例恶性淋巴瘤患者的ＮＫ细胞活性及Ｔ细胞亚群。结果：恶性淋巴瘤患者ＮＫ细胞活性及Ｔ细胞亚群均显著降低,而且治疗后均有所回升,但仍低于正常;而在治疗后２ａ未复发者,ＮＫ细胞活性及Ｔ细胞亚群与正常人接近。结论：ＮＫ细胞活性及Ｔ细胞亚群的测定对恶性淋巴瘤病情的监测、治疗的指导及预后的评估有重要意义。     

食管癌患者外周血中自然杀伤性T细胞含量的检测及其临床意义

 　目的　研究食管癌患者外周血中自然杀伤性（NK）T细胞在手术前后的表达情况。方法　采用流式细胞术（FCM）分析59例食管癌患者手术前后外周血中CD3、CD56、CD4、CD8抗体的表达,研究NKT细胞及其亚群的表达情况及所占比例。结果　随着CD+3 CD+56 CD+8／CD+3 CD+56 CD+4的比值逐渐升高,Ⅲ～Ⅳ期食管癌患者的比例逐渐降低,ANOVA示组间差异有统计学意义（P＜0.05）;CD+3 CD+56 CD+8／CD+3 CD+56 CD+4的比值与CD+3 CD+56 CD+4 NKT细胞非线性相关;CD+3 CD+56 CD+8 NKT细胞与NK细胞正相关,与CD+3 T细胞负相关。结论　CD+3 CD+56 CD+8／CD+3 CD+56 CD+4 的比值可能与肿瘤负荷有关,并且有助于判断食管癌患者的疾病程度及预后。     

食管癌患者外周血自然杀伤T 细胞及其表面受体NKG2A与NKG2D检测的临床意义

 【摘要】　目的　研究外周血中自然杀伤（NK）T细胞及其CD+8 NKT细胞亚群在食管癌患者与健康人中的表达水平及NKT细胞活性改变,探讨NKT细胞受体与临床病理分期的相关性及其临床意义。方法　采用流式细胞术分析53例食管癌患者及39名健康对照者外周血中NKT细胞及CD+8 NKT亚群,检测NKT细胞受体NKG2A和NKG2D的表达并结合临床病理因素作比较分析。结果　与健康对照组相比,食管癌患者外周血NKT细胞表达增加[（4.32±0.73）%,（5.97±1.29）%]（t＝3.562,P＜0.01）,NKT细胞表面NKG2D的表达水平降低[（17.56±5.92）%,（15.12±1.56）%]（t＝3.892,P＜0.05）,而NKG2A的表达水平升高[（4.02±1.41）%,（5.99±4.59）%]（t＝4.015,P＜0.05）,且其变化与食管癌的病情进展有关。结论　NKT细胞及其CD+8 NKT亚群在食管癌患者中表达增加,提示患者机体抗肿瘤效应的免疫反馈增强;NKT细胞表面活化性受体NKG2D表达减少与其表面抑制性受体NKG2A表达增加可能是致使NKT细胞活性降低及食管癌患者免疫逃逸的机制之一,且这种NKT细胞表面受体的变化和食管癌病情的发展有一定的相关性。     

手术后大肠癌患者NKT及NK细胞的变化

目的：探讨手术后大肠癌患者外周血NKT细胞及NK细胞的变化及其影响因素。方法： 采集32例大肠癌患者手术前后和13例健康对照外周静脉血,流式细胞术检测外周血NKT及NK细胞的变化,研究其与大肠癌患者临床病理特征的关系。结果：大肠癌患者NKT细胞较健康人升高（P<0.05）,T细胞与健康人无差异,NK细胞较健康人减少（P<0.05）。健康人群中NKT细胞占外周血T淋巴细胞的6.6%,低于大肠癌患者的18.9%（P<0.05）。术后1周,大肠癌患者NKT细胞较术前明显升高、NK细胞明显降低（P<0.05）。年龄＞60岁较年龄≤60的大肠癌患者的T细胞低（P<0.05）;有淋巴结转移患者的T细胞有降低趋势,NK细胞有增高趋势;肿瘤浸润至浆膜和浆膜外大肠癌患者T细胞有降低趋势;Duke’s C、D期较Duke’s A、B期大肠癌患者T细胞低（P<0.05）。T、NKT及NK细胞三者间无相关关系。结论：手术后大肠癌患者NKT细胞介导的抗肿瘤免疫反应处于活化状态,NK细胞处于抑制状态。     

Clinical significance of stanniocalcin-1 detected in peripheral blood and bone marrow of esophageal squamous cell carcinoma patients

Background

Stanniocalcin-1 (STC-1) is a potential marker of disseminated tumor cells (DTCs). The aim of this study was to examine STC-1 expression in peripheral blood (PB) and bone marrow (BM) of esophageal squamous cell carcinoma (ESCC) patients, and to evaluate its clinical significance.

Methods

A total of 85 ESCC patients treated with radical resection were enrolled in this study. Immunohistochemistry was used to detect STC-1 protein expression in ESCC tissues. Nested RT-PCR was used to detect STC-1 mRNA expression in PB and BM.

Results

There were 71 cases (83.5%) showed a higher level of STC-1 protein expression in tumor tissues than in adjacent normal tissues (P < 0.001). Furthermore, the frequencies of STC-1 mRNA expression detected in PB and BM were 37.6% (32/85) and 21.2% (18/85), respectively, and together increased sensitivity to 48.2% (41/85), which was much higher than that in patients with benign esophageal disease (5.0%, 2/40, P < 0.001). In addition, STC-1 mRNA expression either in PB or BM was correlated with lymph metastasis, advanced stage and adverse 2-year progression free survival (PFS). In a multivariate analysis using the Cox proportional hazard model, STC-1 expression in PB and/or BM was an independent unfavorable prognostic factor for ESCC, apart from lymph metastasis and clinical stage.

Conclusions

STC-1 mRNA expression is a reliable marker for detection of DTCs in PB and BM of ESCC patients, and STC-1-positive DTCs may be a promising tool for diagnosis and prognosis assessment in ESCC.     

pN0期食管鳞癌血液微转移检测的临床意义

Objective To explore the clinical significance and the impact on prognosis of blood micrometastasis in the patients with pN0 esophageal squamous cell carcinoma. Methods Total RNA was extracted with TRIzol and mRNA was transcribed reversely into cDNA. RT-PCR was used to detect MMP-7 mRNA and hTERT mRNA in blood. △△Ct sample values were calculated with post-operative follow-up of 3 month, 6 month, 12 month. Results Statistical results suggested that blood micrometastasis was related to differentiation grade and pTNM staging (P=0.000, P=0.000 respectively), but not to age, sex, length of turnout (P0.05). Follow-up results suggested that the degree of invasion and tumor metastasis (recurrence) was no correlation; follow-up to 6 month and 12 month, tumor metastasis (recurrence) was associated with blood micrometastasis, and follow-up to 12 month, compared with the tumor metastasis (recurrence) probability of blood micrometastasis-positive patients and negative patients, the former was as 6.44 times as the latter. (OR=6.440, 95 % CI 1.547-26.822). Conclusion Blood micrometastasis testing is of great significance to early diagnosis and prognosis judgment in pN0 esophageal squamous cell carcinoma patients.     

pN0期食管鳞癌血液微转移检测的临床意义

Objective To explore the clinical significance and the impact on prognosis of blood micrometastasis in the patients with pN0 esophageal squamous cell carcinoma. Methods Total RNA was extracted with TRIzol and mRNA was transcribed reversely into cDNA. RT-PCR was used to detect MMP-7 mRNA and hTERT mRNA in blood. △△Ct sample values were calculated with post-operative follow-up of 3 month, 6 month, 12 month. Results Statistical results suggested that blood micrometastasis was related to differentiation grade and pTNM staging (P=0.000, P=0.000 respectively), but not to age, sex, length of turnout (P0.05). Follow-up results suggested that the degree of invasion and tumor metastasis (recurrence) was no correlation; follow-up to 6 month and 12 month, tumor metastasis (recurrence) was associated with blood micrometastasis, and follow-up to 12 month, compared with the tumor metastasis (recurrence) probability of blood micrometastasis-positive patients and negative patients, the former was as 6.44 times as the latter. (OR=6.440, 95 % CI 1.547-26.822). Conclusion Blood micrometastasis testing is of great significance to early diagnosis and prognosis judgment in pN0 esophageal squamous cell carcinoma patients.     

pN0期食管鳞癌血液微转移检测的临床意义

目的探讨pN0期食管鳞癌的血液微转移临床意义及其对预后的影响。方法提取血液标本总RNA,将mRNA反转录成cDNA,然后用实时荧光定量RT—PCR技术检测血液标本MMP-7 mRNA和hTERT mRNA表达,计算样本的△△Ct值,对40例N0期食管癌患者分别进行术后3、6、12个月跟踪随访复查。结果血液微转移与年龄、性别、癌肿长度等因素无相关关系,但与组织分化等级和pTNM分期间存在相关关系。随访结果显示单纯观察肿瘤不同侵犯深度与肿瘤术后转移（复发）率无相关性;随访术后6个月及12个月,血液微转移与否与肿瘤转移（复发）率有相关性（P〈0．05）,其中血液微转移阳性患者术后12个月肿瘤转移（复发）概率是阴性患者的6．44倍（OR=6．440,95％CI为1．547～26．822）。结论食管鳞癌患者血液微转移检测对早期诊断及预后判断具有重要意义。     

pN0期食管鳞癌血液微转移检测的临床意义

Objective To explore the clinical significance and the impact on prognosis of blood micrometastasis in the patients with pN0 esophageal squamous cell carcinoma. Methods Total RNA was extracted with TRIzol and mRNA was transcribed reversely into cDNA. RT-PCR was used to detect MMP-7 mRNA and hTERT mRNA in blood. △△Ct sample values were calculated with post-operative follow-up of 3 month, 6 month, 12 month. Results Statistical results suggested that blood micrometastasis was related to differentiation grade and pTNM staging (P=0.000, P=0.000 respectively), but not to age, sex, length of turnout (P0.05). Follow-up results suggested that the degree of invasion and tumor metastasis (recurrence) was no correlation; follow-up to 6 month and 12 month, tumor metastasis (recurrence) was associated with blood micrometastasis, and follow-up to 12 month, compared with the tumor metastasis (recurrence) probability of blood micrometastasis-positive patients and negative patients, the former was as 6.44 times as the latter. (OR=6.440, 95 % CI 1.547-26.822). Conclusion Blood micrometastasis testing is of great significance to early diagnosis and prognosis judgment in pN0 esophageal squamous cell carcinoma patients.