徐延森 馬紅艷 楊明月 王平 李秀清 鞠英博 孫杰 杜文雅
[摘要] 目的 觀察正常人,乳腺癌患者手術(shù)前后cd44+/cd24-,aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞變化情況,分析其與乳腺癌的臨床相關(guān)性。 方法 方便選取該院30名健康醫(yī)護(hù)人員以及自2016年1月—2017年6月收治的30例乳腺癌患者作為該次研究對(duì)象,檢測(cè)健康人員與乳腺癌患者手術(shù)前后的cd44+/cd24-,并將aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量,分析數(shù)據(jù)。 結(jié)果 健康人員與乳腺癌患者的aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物,兩組人員的血漿細(xì)胞含量差異無(wú)統(tǒng)計(jì)學(xué)意義(P>0.05),采用乳腺癌外周血中的cd44+/cd24-作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物時(shí),乳腺癌患者的血漿細(xì)胞含量(5.3±2.1)%明顯高于健康人組(0.0±0.0)%,兩組對(duì)比差異有統(tǒng)計(jì)學(xué)意義(P<0.05),且手術(shù)后,乳腺癌患者cd44+/cd24-,aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量均有降低,手術(shù)后cd44+/cd24-作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量(0.7±0.3)%明顯小于手術(shù)前(5.3±2.1)%,手術(shù)后aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量(0.8±0.3)%明顯小于手術(shù)前(3.7±1.2)%,各組數(shù)據(jù)對(duì)比均差異有統(tǒng)計(jì)學(xué)意義(P<0.05)。結(jié)論 cd44+/cd24-,aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量與乳腺癌疾病的發(fā)生和發(fā)展具有正相關(guān)關(guān)系。
[關(guān)鍵詞] 乳腺癌手術(shù);cd44+/cd24-;aldh1+;血漿含量;臨床相關(guān)性
[中圖分類號(hào)] R5 [文獻(xiàn)標(biāo)識(shí)碼] A [文章編號(hào)] 1674-0742(2018)01(b)-0019-03
[Abstract] Objective To observe the correlation between the Plasma cell content changes and human breast cancer tumor stem cell marker using cd44+/cd24-, aldh1+ before and after breast cancer surgery. Methods 30 cases of healthy medical staff in our department and 30 cases of breast cancer patients admitted and treated in our hospital from January 2016 to June 2017 were conveniently selected as the research objects and the cd44+/cd24- of healthy staff and breast cancer patients before and after surgery was tested and the aldh1+ was used as the plasma cell content of the human breast cancer tumor stem cell marker, and the data were analyzed. Results There was no obvious difference in the plasma cell content between the two groups(P>0.05), and the cd44+/cd24-was used as the human breast cancer tumor stem cell marker in the peripheral blood of breast cancer, and the plasma cell content of the breast cancer patients was obviously higher than that of healthy group, [(5.3±2.1)% vs (0.0±0.0)%], and the difference was obvious(P<0.05), after surgery, the cd44+/cd24-,aldh1+ of breast cancer patients decreased, and the content of cd44+/cd24- after surgery was obviously lower than that before surgery, [(0.7±0.3)% vs (5.3±2.1)%], after surgery, the aldh1+ was obviously lower than that before surgery[(0.8±0.3)% vs (3.7±1.2)%], and the difference was statistically significant(P<0.05). Conclusion The cd44+/cd24-, aldh1+ as the human breast cancer tumor stem cell marker plasma cell content is positively correlated with the occurrence and development of breast cancer.
[Key words] Breast cancer surgery; cd44+/cd24-; aldh1+; Plasma content; Clinical correlation
LDH1屬于功能型干細(xì)胞標(biāo)志物,可對(duì)干細(xì)胞進(jìn)行分離和鑒定[1-2]。因此,當(dāng)前發(fā)現(xiàn)的2種不同類型的乳腺癌干細(xì)胞標(biāo)志為ALDH1活性高和cd44+/cd24-表型。但是,目前關(guān)于腫瘤干細(xì)胞的血漿含量變化以及對(duì)ALDH1+和cd44+/cd24-表型的乳腺癌干細(xì)胞之間生物學(xué)特性的差異研究報(bào)道尚不多見(jiàn)[3-4]。為此該文特方便選取該院自2016年1月—2017年6月收治的30例乳腺癌患者和該科30名健康醫(yī)護(hù)人員進(jìn)行研究,旨在探究乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量變化與臨床相關(guān)性,現(xiàn)報(bào)道如下。
1 資料與方法
1.1 一般資料
方便選擇該院收治的30例乳腺癌患者(設(shè)為研究組)和該科自愿加入該研究的30名健康女性醫(yī)護(hù)人員(設(shè)為對(duì)照組)作為研究對(duì)象,研究組患者年齡分布為33~45歲,平均年齡為(35.3±1.8)歲,對(duì)照組醫(yī)護(hù)人員的年齡分布為31~46歲,平均年齡為(34.7±1.6)歲,兩組應(yīng)試者的年齡、性別差異無(wú)統(tǒng)計(jì)學(xué)意義,可進(jìn)行對(duì)比。
1.2 方法
研究者均行外周血中以cd44+/cd24-,aldh1+為表型的干細(xì)胞細(xì)胞檢測(cè),首先利用EDTA抗凝管采集應(yīng)試者肘正中2 mL靜脈血,并對(duì)血樣標(biāo)本進(jìn)行離心處理,去除最上層的血漿層,取單個(gè)核細(xì)胞層制備細(xì)胞懸液(3.3×105.5/mL),然后將5 μL ALDH1特定抑制物溶液加入到對(duì)照組制備的細(xì)胞懸液中,研究組細(xì)胞懸液中加入5 μL激活的ALDH1底物溶液,使兩組患者的細(xì)胞懸液發(fā)生乙醛脫氫酶1反應(yīng),待反應(yīng)完全后,兩組各取100 μL細(xì)胞液,加入CD44-PE-CY5、CD24-PE,然后采用流式細(xì)胞儀對(duì)細(xì)胞液進(jìn)行檢測(cè),并記錄兩組應(yīng)試者的cd44+/cd24-,aldh1+血漿細(xì)胞含量,并采用CELL QUEST軟件對(duì)檢測(cè)所獲取的數(shù)據(jù)進(jìn)行分析。
1.3 觀察指標(biāo)
比較健康人員及乳腺癌患者手術(shù)前后外周血中的cd44+/cd24-,aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞變化情況[5-7]。
1.4 統(tǒng)計(jì)方法
采用SPSS 22.0統(tǒng)計(jì)學(xué)軟件和CELL QUEST軟件對(duì)該次研究所得數(shù)據(jù)進(jìn)行分析和統(tǒng)計(jì),用(x±s)表示計(jì)量資料,采用t檢驗(yàn),用(%)表示計(jì)數(shù)資料,采用χ2檢驗(yàn),P<0.05為差異有統(tǒng)計(jì)學(xué)意義。
2 結(jié)果
2.1 健康者及乳腺癌外周血中的cd44+/cd24-,aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量對(duì)比
研究示正常人與乳腺癌患者的aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量差異無(wú)統(tǒng)計(jì)學(xué)意義(P>0.05),乳腺癌外周血中的cd44+/cd24-,作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量(5.3±2.1)%明顯高于健康人組(0.0±0.0)%,兩組對(duì)比差異有統(tǒng)計(jì)學(xué)意義(P<0.05),見(jiàn)表1。
2.2 乳腺癌組患者手術(shù)前后的各項(xiàng)血漿細(xì)胞含量變化情況對(duì)比
手術(shù)后,乳腺癌患者cd44+/cd24-,aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量均有降低,手術(shù)后cd44+/cd24-,作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量(0.7±0.3)%明顯小于手術(shù)前(5.3±2.1)%,手術(shù)后aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量(0.8±0.3)%明顯小于手術(shù)前(3.7±1.2)%,兩組對(duì)比差異有統(tǒng)計(jì)學(xué)意義(P<0.05)。
3 討論
該研究中,對(duì)健康應(yīng)試者和乳腺癌患者分別采用流式細(xì)胞儀外周血中以ALDH1為標(biāo)志物干細(xì)胞檢測(cè),檢測(cè)結(jié)果顯示,健康人員與乳腺癌患者的aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物,兩組人員的血漿細(xì)胞含量差異無(wú)統(tǒng)計(jì)學(xué)意義,采用乳腺癌外周血中的cd44+/cd24-作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物時(shí),乳腺癌患者的血漿細(xì)胞含量(5.3±2.1)%明顯高于健康人組(0.0±0.0)%,兩組對(duì)比差異有統(tǒng)計(jì)學(xué)意義(P<0.05),且手術(shù)后,乳腺癌患者cd44+/cd24-,aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量均有降低,手術(shù)后cd44+/cd24-作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量(0.7±0.3)%明顯小于手術(shù)前(5.3±2.1)%,手術(shù)后aldh1+作為人乳腺癌腫瘤干細(xì)胞標(biāo)志物血漿細(xì)胞含量(0.8±0.3)%明顯小于手術(shù)前(3.7±1.2)%,說(shuō)明了以cd44+/cd24-,aldh1+為表型的干細(xì)胞與乳腺癌疾病的發(fā)生和發(fā)展具有正相關(guān)關(guān)系,這與郭呈芳等人[8]研究的健康對(duì)照組的aldh1+細(xì)胞含量(3.12~4.95),cd44+/cd24-細(xì)胞含量(0.00~0.00)基本一致。
綜上所述,為了改善乳腺癌患者的預(yù)后質(zhì)量,需對(duì)腫瘤干細(xì)胞相關(guān)知識(shí)進(jìn)行深入研究,并采用有效的治療方式阻礙干細(xì)胞的增殖和分化。
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(收稿日期:2017-10-10)