|
流式细胞术对不同肿瘤细胞表面所表达血小板免疫相关抗原的检测 |
|
张培彤 朴炳奎 裴迎霞 祁鑫
摘 要 目的:研究不同肿瘤细胞表面血小板免疫相关抗原的表达。方法:利用流式细胞术观察了PGCL3、PAa、PG-3、PG-3M、MGC803、ESCL、Bel、HCT、KB、A2780、CC801共11种人肿瘤细胞,其中包括二对高低不同转移能力的人肺癌(PGCL3和PAa)和人前列腺癌(PG-3和PG-3M)细胞阳性表达不同血小板免疫相关抗原的细胞数及其肿瘤细胞表面抗原表达的平均荧光强度。结果:11种人肿瘤细胞膜表面均有CD9、CD63、CD42a和TSP等血小板免疫相关抗原不同程度的表达,在MGC803细胞膜表面发现有CD36较强的表达,CD41、CD42b、CD61和CD62均未发现表达。11种人肿瘤细胞系中CD9+、CD42a+、CD63+、TSP+细胞所占的比例各不相同,不同肿瘤细胞系每个抗原阳性细胞抗原表达的荧光强度也不同。与高转移PGCL3和PG-3M细胞相比,CD9在低转移细胞系PAa和PG-3上有较高的表达,CD42a、TSP有相对低的表达。CD42a+和TSP+细胞数和表达强度在高转移PGCL3和PG-3M细胞系均要高于低转移的PAa和PG-3;CD63+细胞数高转移PG-3M细胞系要比低转移的PG-3高很多。结论:结合既往研究,肿瘤细胞表达的血小板免疫相关抗原可能与肿瘤细胞的侵袭转移能力有关。CD42a 、TSP和CD36过度表达可能促进肿瘤细胞的侵袭和转移,CD9和CD63(尤其是CD9)可能起相反的作用。由于MGC803同时表达CD36,它可能是11种肿瘤细胞中侵袭转移能力最强的。 关键词 流式细胞术 血小板免疫相关抗原 侵袭和转移,肿瘤 肿瘤细胞系,培养的 中国图书分类号 R392.11
Measurement of the antigens immunologically related to the platelet glycoproteins on tumor cells surface by flow cytometry
ZHANG Pei-Tong,PIAO Bing-Kui,PEI Ying-Xia et al. Flow Cytometry Laboratory,Guanganmen Hospital,China Academy of Traditional Chinese Medicine,Beijing 100053
Abstract Objective:To investigate the expression of the antigens immunologically related to the platelet glycoproteins on various human tumor cells surface. Methods:To measure and compare the expression of the antigens immunologically related to the platelet glycoproteins on 11 human tumor cell lines by flow cytometry. Particularly analyzing the results of two pairs of human pulmonary and prostatic tumor cell lines with low and high metastatic potential respectively. Counting the number and measuring the mean fluorescent intense of the antigen positive cells. Results:The expression of the fluorescent intensity and the number of the positive cells of CD9, CD63, CD42a and TSP on these tumor cell lines were different. MGC803 express CD36 except for CD9, CD63, CD42a and TSP. There were not expression of CD41, CD42b, CD61 and CD62 on 11 tumor cell lines. The positive cell number and fluorescen[1] [2] [3] 下一页 上一个医学论文: 牛磺酸对家兔油酸肺损伤的防治作用 下一个医学论文: Th1 Th2相关细胞因子基因检测方法的建立
|
|
|
|
|
|
|