AIM To further study the role of bcl 2 protein expression in gastric carcinogenesis and tumor progression. METHODS Using immunohistochemical staining, the bcl 2 protein expression in 50 cases of gastric carcinoma...AIM To further study the role of bcl 2 protein expression in gastric carcinogenesis and tumor progression. METHODS Using immunohistochemical staining, the bcl 2 protein expression in 50 cases of gastric carcinoma and its relation to clinical status and pathomorphological parameters were observed. RESULTS Forty one (82%) cases were positive for bcl 2 protein staining which was located in the cytoplasm and nuclear membrane of tumor cells. The rate of bcl 2 protein expression was not correlated with the patient, sex, tumor size, lymph node status or clinical stages ( P >0 05). It was strongly associated with intestinal type tumors and poorly differentiated tumors ( P <0 05 and P <0 01). CONCLUSION Aberrant bcl 2 protein expression appears to be specifically associated with development of intestinal type gastric carcinoma, bcl 2 protein expression might play an important role in the early development/promotion and phenotypic differentiation of gastric carcinomas, but not in tumor progression.展开更多
目的:观察肿瘤转移相关基因及转移抑制基因在DEN诱发大鼠肝癌组织中的表达及不同治法对其影响。方法:DEN诱发大鼠肝癌,经西药喃氟啶和不同中药治疗,取大鼠肝(含肝癌)组织抽提RNA,Affymetrix Rat 230A GeneChip检测基因表达的差异。结果...目的:观察肿瘤转移相关基因及转移抑制基因在DEN诱发大鼠肝癌组织中的表达及不同治法对其影响。方法:DEN诱发大鼠肝癌,经西药喃氟啶和不同中药治疗,取大鼠肝(含肝癌)组织抽提RNA,Affymetrix Rat 230A GeneChip检测基因表达的差异。结果:肝癌表达增加者55个,减少者8个,不同中西医治法有一定的调节作用。分析:肿瘤转移相关基因及转移抑制基因在肝癌中表达的改变和不同治法作用的差异,其具体调节途径和意义有待进一步研究。展开更多
文摘AIM To further study the role of bcl 2 protein expression in gastric carcinogenesis and tumor progression. METHODS Using immunohistochemical staining, the bcl 2 protein expression in 50 cases of gastric carcinoma and its relation to clinical status and pathomorphological parameters were observed. RESULTS Forty one (82%) cases were positive for bcl 2 protein staining which was located in the cytoplasm and nuclear membrane of tumor cells. The rate of bcl 2 protein expression was not correlated with the patient, sex, tumor size, lymph node status or clinical stages ( P >0 05). It was strongly associated with intestinal type tumors and poorly differentiated tumors ( P <0 05 and P <0 01). CONCLUSION Aberrant bcl 2 protein expression appears to be specifically associated with development of intestinal type gastric carcinoma, bcl 2 protein expression might play an important role in the early development/promotion and phenotypic differentiation of gastric carcinomas, but not in tumor progression.
文摘目的:观察肿瘤转移相关基因及转移抑制基因在DEN诱发大鼠肝癌组织中的表达及不同治法对其影响。方法:DEN诱发大鼠肝癌,经西药喃氟啶和不同中药治疗,取大鼠肝(含肝癌)组织抽提RNA,Affymetrix Rat 230A GeneChip检测基因表达的差异。结果:肝癌表达增加者55个,减少者8个,不同中西医治法有一定的调节作用。分析:肿瘤转移相关基因及转移抑制基因在肝癌中表达的改变和不同治法作用的差异,其具体调节途径和意义有待进一步研究。