首页> 外文期刊>Journal of Surgical Oncology >Overexpression of the drug resistance-associated protein metallothionein does not correlate with response of sarcomas to isolated limb perfusion treatment.
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Overexpression of the drug resistance-associated protein metallothionein does not correlate with response of sarcomas to isolated limb perfusion treatment.

机译:耐药相关蛋白金属硫蛋白的过表达与肉瘤对孤立肢体灌注治疗的反应无关。

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BACKGROUND AND OBJECTIVES: Hyperthermic isolated limb perfusion with TNF-alpha and melphalan (HILP-TM) achieves high response rates in sarcomas. Melphalan resistance was previously reported to be associated with overexpression of metallothioneins (MTs). Objective of this study was to investigate the influence of MT expression on tumor responses in HILP-TM-treated soft tissue (STSs) and bone sarcomas (BS). METHODS: In primary biopsies of 41 HILP-TM-treated sarcomas (37 STSs and 4 BS), MT expression was assessed by an immunoreactive score. The pathologic response to HILP-TM was quantified in the corresponding tumor resection specimens. We studied the association of MT-IRS between histological regression (responder >90%, or non-responder
机译:背景和目的:TNF-α和美法仑(HILP-TM)的高温离体肢体灌注可在肉瘤中实现高应答率。以前据报道耐美法仑与金属硫蛋白(MT)的过表达有关。这项研究的目的是调查MT表达对HILP-TM处理的软组织(STSs)和骨肉瘤(BS)中肿瘤反应的影响。方法:在41例HILP-TM治疗的肉瘤(37例STS和4例BS)的原发活检中,通过免疫反应评分评估MT的表达。在相应的肿瘤切除标本中量化了对HILP-TM的病理反应。我们研究了组织学消退(应答者> 90%,或无应答者<或= 90%消退),肿瘤增殖和其他临床病理参数之间的MT-IRS关联。结果:MT表达在70.7%(N = 29)的肿瘤中发现(高12.2%,中度19.5%,低39.0%)。 HILP-TM后,有20例(48.8%)被归类为“有反应者”,有21例(51.2%)被归类为“无反应者”。六个“响应者”(14.6%)表示完全回归。 MT表达与肿瘤增殖呈正相关,而与HILP-TM无关。结论:HILP-TM在高比例的肉瘤中显示出良好的反应。尽管在这组肉瘤中观察到MT过表达,但免疫组化MT状态不能预测HILP-TM治疗后的肿瘤反应。

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