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1.
报道1例伴有EWSR1断裂的上颌骨非透明细胞性牙源性癌。患者男,43岁。肿瘤组织学及形态学改变均具有硬化性牙源性癌的特征,但与目前所报道的硬化性牙源性癌的EWSR1基因重排结果有所不同。  相似文献   
2.
目的:探讨不同分子亚型乳腺浸润性导管癌组织中Sox2与Oct4蛋白的表达及意义。方法:根据癌组织ER、PR、HER-2的表达情况将120例乳腺浸润性导管癌分型为LuminalA45例、LuminalB29例、HER-2过表达27例和Basal-like19例。采用免疫组化SP法检测不同分子亚型乳腺浸润性导管癌组织中Sox2与Oct4蛋白的表达。结果:4种分子亚型乳腺浸润性导管癌组织中Sox2与Oct4蛋白的表达比较,差异有统计学意义(H=27.688和50.737,P<0.001);Basal-like型乳腺浸润性导管癌组织中Sox2与Oct4蛋白的表达高于其他3种类型,LuminalA型低于其他3种类型(P<0.05)。乳腺浸润性导管癌组织中Oct4与Sox2的表达相关(rS=0.506,P<0.001)。结论:肿瘤干细胞标志物Sox2与Oct4蛋白的表达可能与乳腺浸润性导管癌的生物学行为密切相关。  相似文献   
3.
Objective To study the distribution and quantity of CD44VCD24- cells in breast cancer tissue and the cell lines,and as well as its correlation with the expression of various breast cancer markers and molecular subtyping of breast carcinoma.Methods The expression of CD44 / CD24,estrogen receptor,progesterone receptor,HER2,human estrogen-induced protein PS2,bcl-2 and nm23 in 60 cases of invasive ductal carcinoma of breast were studied by either single or double immunohistochemical staining.The co-expression of CD44 and CD24 in 3 breast cancer cell lines (MCF-7,MDA-MB-468,and MDA-MB- 231) was also examined.Results The quantity and distribution of CD44 + /CD24- cells varied greatly and no specific patterns were identified.The percentage of CD44 + /CD24- in breast cancer was 65%.The amount of CD44+/CD24- cells did not correlate with the age of patients,lymph node metastasis,tumor  size,molecular subtypes and expression of various breast cancer markers in breast carcinoma.The proportion of CD44+/CD24- cells in MCF-7,MDA-MB-468,and MDA-MB-231 cell lines was < 1%,5% and > 80% ,respectively.Conclusions CD44+ /CD24- cells are demonstrated in certain breast cancer tissues and cell lines.However,there is no relationship obtained between the quantity or the distribution of these cells and the molecular subtyping or the clinicopathologic parameters in breast cancer.  相似文献   
4.
Oct4在乳腺癌组织中的表达及意义   总被引:2,自引:0,他引:2  
目的探讨转录因子Oct4在乳腺癌发生发展中的作用。方法采用免疫组化法检测93例乳腺浸润性导管癌、32例为乳腺良性病变组织中Oct4表达情况。结果Oct4在乳腺癌组织中的阳性率明显高于乳腺良性病变组织(P〈0.05);Basal-like型乳腺癌组织中阳性率最高。结论Oct4高表达可促进乳腺癌的发生、发展。  相似文献   
5.
Objective To study the distribution and quantity of CD44VCD24- cells in breast cancer tissue and the cell lines,and as well as its correlation with the expression of various breast cancer markers and molecular subtyping of breast carcinoma.Methods The expression of CD44 / CD24,estrogen receptor,progesterone receptor,HER2,human estrogen-induced protein PS2,bcl-2 and nm23 in 60 cases of invasive ductal carcinoma of breast were studied by either single or double immunohistochemical staining.The co-expression of CD44 and CD24 in 3 breast cancer cell lines (MCF-7,MDA-MB-468,and MDA-MB- 231) was also examined.Results The quantity and distribution of CD44 + /CD24- cells varied greatly and no specific patterns were identified.The percentage of CD44 + /CD24- in breast cancer was 65%.The amount of CD44+/CD24- cells did not correlate with the age of patients,lymph node metastasis,tumor  size,molecular subtypes and expression of various breast cancer markers in breast carcinoma.The proportion of CD44+/CD24- cells in MCF-7,MDA-MB-468,and MDA-MB-231 cell lines was < 1%,5% and > 80% ,respectively.Conclusions CD44+ /CD24- cells are demonstrated in certain breast cancer tissues and cell lines.However,there is no relationship obtained between the quantity or the distribution of these cells and the molecular subtyping or the clinicopathologic parameters in breast cancer.  相似文献   
6.
Objective To study the distribution and quantity of CD44VCD24- cells in breast cancer tissue and the cell lines,and as well as its correlation with the expression of various breast cancer markers and molecular subtyping of breast carcinoma.Methods The expression of CD44 / CD24,estrogen receptor,progesterone receptor,HER2,human estrogen-induced protein PS2,bcl-2 and nm23 in 60 cases of invasive ductal carcinoma of breast were studied by either single or double immunohistochemical staining.The co-expression of CD44 and CD24 in 3 breast cancer cell lines (MCF-7,MDA-MB-468,and MDA-MB- 231) was also examined.Results The quantity and distribution of CD44 + /CD24- cells varied greatly and no specific patterns were identified.The percentage of CD44 + /CD24- in breast cancer was 65%.The amount of CD44+/CD24- cells did not correlate with the age of patients,lymph node metastasis,tumor  size,molecular subtypes and expression of various breast cancer markers in breast carcinoma.The proportion of CD44+/CD24- cells in MCF-7,MDA-MB-468,and MDA-MB-231 cell lines was < 1%,5% and > 80% ,respectively.Conclusions CD44+ /CD24- cells are demonstrated in certain breast cancer tissues and cell lines.However,there is no relationship obtained between the quantity or the distribution of these cells and the molecular subtyping or the clinicopathologic parameters in breast cancer.  相似文献   
7.
夏枯草抑制人淋巴瘤细胞增殖的机制   总被引:2,自引:0,他引:2  
师秀琴  吕新全 《中国药师》2009,12(8):1038-1040
目的:研究夏枯草对淋巴瘤细胞生长的影响及其可能的机制。方法:参考临床常用剂量,分别采用50g·L^-1夏枯草(夏枯草组)、50g·L^-1夏枯草+1μmol·L^-1wortmannin(wortmannin组)处理Raji细胞,以加入同体积生理盐水的naji细胞作对照,应用MTT法检测细胞增殖率,Western Blotting检测Akt磷酸化水平和Caspase-3的表达。结果:夏枯草组细胞增殖率明显低于对照组(P〈0.05);Akt磷酸化水平在夏枯草组中表达明显降低(P〈0.05),但wortmannin可抑制其磷酸化,夏枯草组的Caspase-3显著增高(P〈0.05)。结论:夏枯草可以明显抑制Raji细胞的生长,且这种抑制作用可能是通过抑制Akt信号转导通路,继而激活细胞凋亡来实现的。  相似文献   
8.
Objective To study the distribution and quantity of CD44VCD24- cells in breast cancer tissue and the cell lines,and as well as its correlation with the expression of various breast cancer markers and molecular subtyping of breast carcinoma.Methods The expression of CD44 / CD24,estrogen receptor,progesterone receptor,HER2,human estrogen-induced protein PS2,bcl-2 and nm23 in 60 cases of invasive ductal carcinoma of breast were studied by either single or double immunohistochemical staining.The co-expression of CD44 and CD24 in 3 breast cancer cell lines (MCF-7,MDA-MB-468,and MDA-MB- 231) was also examined.Results The quantity and distribution of CD44 + /CD24- cells varied greatly and no specific patterns were identified.The percentage of CD44 + /CD24- in breast cancer was 65%.The amount of CD44+/CD24- cells did not correlate with the age of patients,lymph node metastasis,tumor  size,molecular subtypes and expression of various breast cancer markers in breast carcinoma.The proportion of CD44+/CD24- cells in MCF-7,MDA-MB-468,and MDA-MB-231 cell lines was < 1%,5% and > 80% ,respectively.Conclusions CD44+ /CD24- cells are demonstrated in certain breast cancer tissues and cell lines.However,there is no relationship obtained between the quantity or the distribution of these cells and the molecular subtyping or the clinicopathologic parameters in breast cancer.  相似文献   
9.
Objective To study the distribution and quantity of CD44VCD24- cells in breast cancer tissue and the cell lines,and as well as its correlation with the expression of various breast cancer markers and molecular subtyping of breast carcinoma.Methods The expression of CD44 / CD24,estrogen receptor,progesterone receptor,HER2,human estrogen-induced protein PS2,bcl-2 and nm23 in 60 cases of invasive ductal carcinoma of breast were studied by either single or double immunohistochemical staining.The co-expression of CD44 and CD24 in 3 breast cancer cell lines (MCF-7,MDA-MB-468,and MDA-MB- 231) was also examined.Results The quantity and distribution of CD44 + /CD24- cells varied greatly and no specific patterns were identified.The percentage of CD44 + /CD24- in breast cancer was 65%.The amount of CD44+/CD24- cells did not correlate with the age of patients,lymph node metastasis,tumor  size,molecular subtypes and expression of various breast cancer markers in breast carcinoma.The proportion of CD44+/CD24- cells in MCF-7,MDA-MB-468,and MDA-MB-231 cell lines was < 1%,5% and > 80% ,respectively.Conclusions CD44+ /CD24- cells are demonstrated in certain breast cancer tissues and cell lines.However,there is no relationship obtained between the quantity or the distribution of these cells and the molecular subtyping or the clinicopathologic parameters in breast cancer.  相似文献   
10.
目的 研究erbB4在乳腺不同病变组织中的表达及意义。方法 采用免疫组织化学SP法 ,检测了 3 9例乳腺浸润性导管癌(invasiveductalcarcinoma ,IDC) ,5例纤维腺瘤和 9例小叶增生组织中erbB4蛋白的表达情况。结果 乳腺IDC中erbB4蛋白的阳性表达率为 82 1% ,显著高于纤维腺瘤 (2 0 % )和小叶增生 (4 4 4% ) (P <0 0 5 ) ;乳腺IDC中erbB4蛋白表达情况与淋巴结转移无关 (P>0 0 5 )。结论 erbB4蛋白可能在乳腺IDC的发生中起着促进作用。  相似文献   
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