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Tumour necrosis factor receptor-associated factor-1 (TRAF-1) expression is increased in renal cell carcinoma patient serum but decreased in cancer tissue compared with normal: potential biomarker significance.

机译:与正常:潜在的生物标志物意义相比,肾细胞癌患者血清中的肿瘤坏死因子受体相关因子1(TRAF-1)表达增加,但在癌组织中降低。

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摘要

Renal cell carcinoma (RCC) generally has a poor prognosis because of late diagnosis and metastasis. We have previously described decreased tumour necrosis factor receptor-associated factor-1 (TRAF-1) in RCC compared with paired normal kidney in a patient cohort in Australia. In the present study, TRAF-1 expression in clear cell RCC (ccRCC) and normal kidney was again compared, but in a cohort from University Malaya Medical Centre. Serum TRAF-1 was also evaluated in RCC and normal samples.Immunohistochemistry with automated batch staining and Aperio ImageScope morphometry was used to compare TRAF-1 in 61 ccRCC with paired normal kidney tissue. Serum from 15 newly diagnosed and untreated ccRCC and 15 healthy people was tested for TRAF-1 using ELISA.In this cohort, TRAF-1 was highly expressed in proximal tubular epithelium of normal kidney, and significantly decreased in ccRCC tissue (p?
机译:肾细胞癌(RCC)由于诊断和转移较晚,通常预后较差。我们先前已经描述了在澳大利亚的一个患者队列中,与配对的正常肾脏相比,RCC中的肿瘤坏死因子受体相关因子-1(TRAF-1)减少。在本研究中,再次比较了TRAF-1在透明细胞RCC(ccRCC)和正常肾脏中的表达,但在马来亚大学医学中心的队列中进行了比较。还对RCC和正常样品中的血清TRAF-1进行了评估。采用自动批式染色和Aperio ImageScope形态计量学的免疫组织化学方法将61 ccRCC中的TRAF-1与配对的正常肾脏组织进行了比较。使用ELISA对15名新诊断和未治疗的ccRCC血清和15名健康人的血清进行了TRAF-1检测。 0.001)。相反,来自ccRCC患者的血清中的TRAF-1明显高于对照血清(分别为132?±?30和54?±?14?pg / mL; p?=?0.013)。之前报道过,已被证实。这与血清TRAF-1的明显增加一起可能表明该蛋白在ccRCC的发生和发展过程中被积极分泌。因此,增加的血清TRAF-1可能是RCC发展的有用的非侵入性指标。

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