新輔助化療對(duì)宮頸鱗癌maspin表達(dá)及腫瘤微淋巴管生成影響
發(fā)布時(shí)間:2018-08-01 16:28
【摘要】:目的大量研究提示,maspin在誘導(dǎo)腫瘤細(xì)胞凋亡、抗腫瘤血管生成等方面功能顯著,可能是一個(gè)功能全面的抑癌基因。本研究觀察抑癌基因maspin及腫瘤微淋巴管(tumor lymphangiogenesis,TLM)在宮頸鱗癌新輔助化療(neoadjuvant chemotherapy,NACT)前后表達(dá)的變化,探討maspin在抑制宮頸鱗癌進(jìn)展中與腫瘤微淋巴系統(tǒng)之間的關(guān)系。方法收集2008-07-01-2015-03-31濱州醫(yī)學(xué)院附屬醫(yī)院婦科接受宮頸活檢及化療后手術(shù)的患者的存檔蠟塊,從中選取55例ⅠB_2~ⅡA期宮頸鱗癌患者,分別收集其化療(TP化療方案)前后標(biāo)本,并相應(yīng)取出對(duì)應(yīng)備用的組織,采用免疫組化法及RT-PCR技術(shù)檢測(cè)標(biāo)本中maspin蛋白及maspin mRNA的表達(dá)水平,采用免疫組化法檢測(cè)TLM的生成情況,分析NACT后maspin及TLM之間的關(guān)系,并探討NACT治療宮頸鱗癌的臨床療效與年齡、FIGO分期的關(guān)系及分析不同臨床療效組NACT前后宮頸癌組織中maspin的表達(dá)情況。結(jié)果化療前maspin陽(yáng)性表達(dá)率為36.36%,化療后maspin陽(yáng)性表達(dá)率為83.64%,化療后較化療前maspin表達(dá)反應(yīng)性上調(diào),χ~2=25.606,r=0.482,P0.01;ⅠB_2期或ⅡA期宮頸癌患者NACT后maspin mRNA表達(dá)水平較NACT前均高,差異均有統(tǒng)計(jì)學(xué)意義,P0.05;ⅠB_2期與ⅡA期宮頸癌患者化療后maspin mRNA之間差異無(wú)統(tǒng)計(jì)學(xué)意義,P=1.36;化療后微淋巴管密度(microlymphatic vessel density,LMVD)為4.56±2.21,較化療前的8.19±4.17顯著降低,P=0.021;NACT后,宮頸鱗癌組織maspin蛋白(r=-0.65,P=0.024)或mRNA(r=-0.57,P=0.031)表達(dá)上升及LMVD下降之間呈顯著負(fù)相關(guān);NACT治療宮頸鱗癌的臨床總有效率達(dá)81.82%,不同臨床療效組中,臨床部分緩解組(PR)NACT后maspin陽(yáng)性率較NACT前相比顯著增加,差異有統(tǒng)計(jì)學(xué)意義,P0.05;CR組及SD組NACT后maspin的陽(yáng)性表達(dá)率較NACT前相比也有所增高,差異無(wú)統(tǒng)計(jì)學(xué)意義,P0.05;NACT療效與患者年齡及分期差異無(wú)統(tǒng)計(jì)學(xué)意義,P0.05。結(jié)論 NACT療效可能與年齡、FIGO分期無(wú)關(guān)。maspin與宮頸癌NACT化療療效關(guān)系密切,可作為療效敏感性指標(biāo);上調(diào)maspin的表達(dá)可能會(huì)抑制腫瘤微淋巴系統(tǒng)生成,從而抑制腫瘤細(xì)胞生長(zhǎng)、侵襲及轉(zhuǎn)移,這可能是新輔助化療抑制宮頸癌進(jìn)展的機(jī)制之一。
[Abstract]:Aim\ maspin may play an important role in inducing apoptosis and anti angiogenesis The aim of this study was to investigate the expression of tumor suppressor gene (maspin) and tumor lymphangiogenesis (TLM) in cervical squamous cell carcinoma (SCC) before and after neoadjuvant chemotherapy, and to explore the relationship between maspin and tumor microlymphoid system in inhibiting the progression of cervical squamous cell carcinoma (SCC). Methods A total of 55 cases of cervical squamous cell carcinoma in stage 鈪,
本文編號(hào):2158162
[Abstract]:Aim\ maspin may play an important role in inducing apoptosis and anti angiogenesis The aim of this study was to investigate the expression of tumor suppressor gene (maspin) and tumor lymphangiogenesis (TLM) in cervical squamous cell carcinoma (SCC) before and after neoadjuvant chemotherapy, and to explore the relationship between maspin and tumor microlymphoid system in inhibiting the progression of cervical squamous cell carcinoma (SCC). Methods A total of 55 cases of cervical squamous cell carcinoma in stage 鈪,
本文編號(hào):2158162
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