BACKGROUND Differential diagnosis among atypical hyperplasia(AH)(including reparative hyperplasia and intestinal metaplasia),low-grade dysplasia(LGD),high-grade dysplasia(HGD),and adenocarcinoma(AC)in gastric mucosal ...BACKGROUND Differential diagnosis among atypical hyperplasia(AH)(including reparative hyperplasia and intestinal metaplasia),low-grade dysplasia(LGD),high-grade dysplasia(HGD),and adenocarcinoma(AC)in gastric mucosal biopsies is challenging due to histomorphological overlaps,variability in pathological diagnosis consistency,and limited reproducibility.AIM To evaluate the diagnostic utility of P53,Ki67,P504S,and IMP3 in gastric cancer and its precancerous lesions,focusing on their effectiveness in distinguishing AH,LGD,HGD,and AC.METHODS From January 2018 to September 2020,a total of 185 gastric mucosal biopsy specimens were analyzed according to the pathological diagnostic criteria outlined in the World Health Organization Classification of Digestive System Tumors(2019).The specimens were categorized into four groups:AH,LGD,HGD,and AC.Immunohistochemistry was employed to assess the expression status of P53,Ki67,P504S,and IMP3.Intergroup comparisons were performed using theχ^(2)test or Fisher's exact probability test to compare the differences in immunohistochemical markers across the distinct lesion groups.RESULTS The expression rate of P504S was highest in the LGD group(53.3%,16/30),while IMP3 expression was highest in the AC group(41.9%,26/62),followed by the HGD group(33.3%).Significant differences in P504S and IMP3 expression levels were observed among the four lesion groups(P<0.001).Pairwise comparisons revealed statistically significant differences in P504S expression between the AH group and the LGD,HGD,and AC groups(P<0.001),as well as significant variations in IMP3 expression between the AH group and the HGD and AC groups,and between the LGD group and the HGD and AC groups(P<0.001).Additionally,significant correlations were found between P504S and the polarity expression pattern of Ki67,and between IMP3 and the mutation expression pattern of P53(P<0.001).The combined detection of P504S with Ki67 and IMP3 with P53 increased the diagnostic sensitivity for LGD and HGD/AC,respectively.CONCLUSION P504S is highly expressed in LGD and is associated with the Ki67“polarity”expression pattern.IMP3 is highly expressed in HGD/AC and is correlated with the P53 mutation expression pattern.The combined detection of P504S with Ki67 and IMP3 with P53 increased the diagnostic sensitivity for LGD and HGD/AC,respectively.The rational use of P504S,Ki67,IMP3,and p53 can help distinguish gastric cancer and precancerous lesions,improving the early cancer diagnosis rate.展开更多
目的:探讨胰岛素样生长因子Ⅱm RNA结合蛋白3(IMP3)及胰岛素样生长因子-2(IGF2)在不同类型胶质瘤中的表达及意义。方法:采用免疫组化S-P法观察98例胶质瘤标本及20例非瘤脑组织中IMP3和IGF2蛋白的表达情况,分析二者的表达与不同临床病理...目的:探讨胰岛素样生长因子Ⅱm RNA结合蛋白3(IMP3)及胰岛素样生长因子-2(IGF2)在不同类型胶质瘤中的表达及意义。方法:采用免疫组化S-P法观察98例胶质瘤标本及20例非瘤脑组织中IMP3和IGF2蛋白的表达情况,分析二者的表达与不同临床病理特征的关系;并随机选取IMP3及IGF2不同程度阳性表达病例行IMP3和IGF2 m RNA原位杂交检测。结果:在不同类型胶质瘤组织中IMP3蛋白、IGF2蛋白及IMP3 m RNA均呈高表达,除少突胶质细胞瘤外,二者在Ⅲ级肿瘤组织中的表达水平均明显高于Ⅱ级(P<0.05);在胶质母细胞瘤中二者的表达水平最高。IGF2 m RNA在不同类胶质瘤中均有表达,但在Ⅱ级、Ⅲ级肿瘤组织及胶质母细胞瘤之间表达差异无统计学意义(P>0.05)。IMP3、IGF2蛋白的阳性表达水平与患者年龄、肿瘤病理级别及术后生存时间关系密切(P<0.05)。结论:IMP3和IGF2对胶质瘤的恶性进展、患者预后存在一定影响,两者可能成为脑胶质瘤诊断和治疗的特异靶点。展开更多
目的探讨胰岛素样生长因子IIm RNA结合蛋白3(insulin-like growth factor-II m RNA-binding protein 3,IMP3)及胰岛素样生长因子-2(Insulin-like growth factor-2,IGF2)在胶质瘤中的表达及对临床预后的影响。方法采用免疫组化S-P法检测...目的探讨胰岛素样生长因子IIm RNA结合蛋白3(insulin-like growth factor-II m RNA-binding protein 3,IMP3)及胰岛素样生长因子-2(Insulin-like growth factor-2,IGF2)在胶质瘤中的表达及对临床预后的影响。方法采用免疫组化S-P法检测171例脑胶质瘤组织及20例非瘤脑组织中IMP3、IGF2及Ki-67的表达情况;分析IMP3、IGF2及Ki-67表达强度间的相关性;Kaplan-Meier生存分析及多变量Cox比例风险回归模型分析胶质瘤患者生存状况的影响因素。结果非瘤脑组织、胶质瘤组织中IMP3、IGF2和Ki-67的表达水平差异均有统计学意义(P均<0.05)。且胶质瘤组织中IMP3、IGF2蛋白及Ki-67表达均随肿瘤病理级别升高而增高(P均<0.05)。Spearman相关分析显示,IMP3、IGF2与Ki-67表达水平皆呈正相关,且IMP3蛋白的表达与IGF2蛋白的表达水平呈正相关(P均<0.05)。Kaplan-Meier分析结果显示IMP3、IGF2的表达与临床预后密切相关(P<0.05)。Cox比例风险回归模型分析示,肿瘤病理分级、IMP3、IGF2及Ki-67均为胶质瘤患者预后的独立危险因素(P均<0.05)。结论 IMP3和IGF2蛋白的表达与胶质瘤的组织病理分级、肿瘤细胞增殖及患者临床预后密切相关,针对二者的靶点治疗有望成为胶质瘤的有效治疗方案。展开更多
目的探讨胰岛素样生长因子ⅡmRNA结合蛋白3(insulin-like growth factor II mRNA-binding protein 3,IMP3)在肺癌中的表达及其临床病理意义。方法采用免疫组化和荧光定量PCR法检测178例肺癌组织中IMP3蛋白及mRNA的表达,分析其表达与肺...目的探讨胰岛素样生长因子ⅡmRNA结合蛋白3(insulin-like growth factor II mRNA-binding protein 3,IMP3)在肺癌中的表达及其临床病理意义。方法采用免疫组化和荧光定量PCR法检测178例肺癌组织中IMP3蛋白及mRNA的表达,分析其表达与肺癌临床病理特征及预后的关系。结果与癌旁组织相比,肺癌组织中IMP3蛋白及mRNA表达水平均显著上调(P<0.01)。IMP3蛋白表达水平与患者性别、病理类型、病理学分期、血清CEA水平有关(P<0.05)。Kaplan-Meier单因素分析显示IMP3表达、淋巴结转移、病理学分期与患者的疾病无进展生存期(progression-free survival,PFS)有关,淋巴结转移、吸烟与总生存期(overall survival,OS)有关(P<0.05)。Cox多因素分析显示IMP3表达、淋巴结转移、肿瘤直径是PFS的独立影响因素;病理学分期是OS的独立影响因素(P<0.05)。结论IMP3表达与肺癌的发生、发展密切相关,是肺癌患者疾病进展的独立预测因子。展开更多
目的:探讨胃肠道间质瘤(GIST)中胰岛素样生长因子Ⅱm RNA结合蛋白(IMP3)的表达及意义。方法:运用免疫组化SP法观察IMP3在115例GIST患者中的表达情况并分析其表达与不同临床病理参数和Ki67增殖指数之间的关系;随机选取IMP3不同程度阳性...目的:探讨胃肠道间质瘤(GIST)中胰岛素样生长因子Ⅱm RNA结合蛋白(IMP3)的表达及意义。方法:运用免疫组化SP法观察IMP3在115例GIST患者中的表达情况并分析其表达与不同临床病理参数和Ki67增殖指数之间的关系;随机选取IMP3不同程度阳性表达病例20例进行IMP3 m RNA原位杂交检测。结果:IMP3在GIST中阳性表达率为56.2%(65/115);IMP3在不同性别、年龄、肿瘤原发部位和组织学类型中的表达差异均无统计学意义(P>0.05),而在是否有局部侵犯、坏死和转移中表达差异均有统计学意义(P<0.05);随着肿瘤直径增大、细胞异型性增加、核分裂像增多及危险度增高,IMP3的阳性表达率增加,各组间比较差异有统计学意义(P<0.001);IMP3表达与Ki67指数增高呈正相关关系(r=0.348,P<0.001);3例复发病例均表达IMP3。结论:IMP3在GIST中表达与肿瘤的侵袭及危险度相关,该基因可能参与了GIST的侵袭与进展,可作为GIST预后判断的参考指标。展开更多
基金Supported by The Science and Technology Research Project of Anyang,No.2022C01SF074。
文摘BACKGROUND Differential diagnosis among atypical hyperplasia(AH)(including reparative hyperplasia and intestinal metaplasia),low-grade dysplasia(LGD),high-grade dysplasia(HGD),and adenocarcinoma(AC)in gastric mucosal biopsies is challenging due to histomorphological overlaps,variability in pathological diagnosis consistency,and limited reproducibility.AIM To evaluate the diagnostic utility of P53,Ki67,P504S,and IMP3 in gastric cancer and its precancerous lesions,focusing on their effectiveness in distinguishing AH,LGD,HGD,and AC.METHODS From January 2018 to September 2020,a total of 185 gastric mucosal biopsy specimens were analyzed according to the pathological diagnostic criteria outlined in the World Health Organization Classification of Digestive System Tumors(2019).The specimens were categorized into four groups:AH,LGD,HGD,and AC.Immunohistochemistry was employed to assess the expression status of P53,Ki67,P504S,and IMP3.Intergroup comparisons were performed using theχ^(2)test or Fisher's exact probability test to compare the differences in immunohistochemical markers across the distinct lesion groups.RESULTS The expression rate of P504S was highest in the LGD group(53.3%,16/30),while IMP3 expression was highest in the AC group(41.9%,26/62),followed by the HGD group(33.3%).Significant differences in P504S and IMP3 expression levels were observed among the four lesion groups(P<0.001).Pairwise comparisons revealed statistically significant differences in P504S expression between the AH group and the LGD,HGD,and AC groups(P<0.001),as well as significant variations in IMP3 expression between the AH group and the HGD and AC groups,and between the LGD group and the HGD and AC groups(P<0.001).Additionally,significant correlations were found between P504S and the polarity expression pattern of Ki67,and between IMP3 and the mutation expression pattern of P53(P<0.001).The combined detection of P504S with Ki67 and IMP3 with P53 increased the diagnostic sensitivity for LGD and HGD/AC,respectively.CONCLUSION P504S is highly expressed in LGD and is associated with the Ki67“polarity”expression pattern.IMP3 is highly expressed in HGD/AC and is correlated with the P53 mutation expression pattern.The combined detection of P504S with Ki67 and IMP3 with P53 increased the diagnostic sensitivity for LGD and HGD/AC,respectively.The rational use of P504S,Ki67,IMP3,and p53 can help distinguish gastric cancer and precancerous lesions,improving the early cancer diagnosis rate.
文摘目的:探讨胰岛素样生长因子Ⅱm RNA结合蛋白3(IMP3)及胰岛素样生长因子-2(IGF2)在不同类型胶质瘤中的表达及意义。方法:采用免疫组化S-P法观察98例胶质瘤标本及20例非瘤脑组织中IMP3和IGF2蛋白的表达情况,分析二者的表达与不同临床病理特征的关系;并随机选取IMP3及IGF2不同程度阳性表达病例行IMP3和IGF2 m RNA原位杂交检测。结果:在不同类型胶质瘤组织中IMP3蛋白、IGF2蛋白及IMP3 m RNA均呈高表达,除少突胶质细胞瘤外,二者在Ⅲ级肿瘤组织中的表达水平均明显高于Ⅱ级(P<0.05);在胶质母细胞瘤中二者的表达水平最高。IGF2 m RNA在不同类胶质瘤中均有表达,但在Ⅱ级、Ⅲ级肿瘤组织及胶质母细胞瘤之间表达差异无统计学意义(P>0.05)。IMP3、IGF2蛋白的阳性表达水平与患者年龄、肿瘤病理级别及术后生存时间关系密切(P<0.05)。结论:IMP3和IGF2对胶质瘤的恶性进展、患者预后存在一定影响,两者可能成为脑胶质瘤诊断和治疗的特异靶点。
文摘目的探讨胰岛素样生长因子ⅡmRNA结合蛋白3(insulin-like growth factor II mRNA-binding protein 3,IMP3)在肺癌中的表达及其临床病理意义。方法采用免疫组化和荧光定量PCR法检测178例肺癌组织中IMP3蛋白及mRNA的表达,分析其表达与肺癌临床病理特征及预后的关系。结果与癌旁组织相比,肺癌组织中IMP3蛋白及mRNA表达水平均显著上调(P<0.01)。IMP3蛋白表达水平与患者性别、病理类型、病理学分期、血清CEA水平有关(P<0.05)。Kaplan-Meier单因素分析显示IMP3表达、淋巴结转移、病理学分期与患者的疾病无进展生存期(progression-free survival,PFS)有关,淋巴结转移、吸烟与总生存期(overall survival,OS)有关(P<0.05)。Cox多因素分析显示IMP3表达、淋巴结转移、肿瘤直径是PFS的独立影响因素;病理学分期是OS的独立影响因素(P<0.05)。结论IMP3表达与肺癌的发生、发展密切相关,是肺癌患者疾病进展的独立预测因子。
文摘目的:探讨胃肠道间质瘤(GIST)中胰岛素样生长因子Ⅱm RNA结合蛋白(IMP3)的表达及意义。方法:运用免疫组化SP法观察IMP3在115例GIST患者中的表达情况并分析其表达与不同临床病理参数和Ki67增殖指数之间的关系;随机选取IMP3不同程度阳性表达病例20例进行IMP3 m RNA原位杂交检测。结果:IMP3在GIST中阳性表达率为56.2%(65/115);IMP3在不同性别、年龄、肿瘤原发部位和组织学类型中的表达差异均无统计学意义(P>0.05),而在是否有局部侵犯、坏死和转移中表达差异均有统计学意义(P<0.05);随着肿瘤直径增大、细胞异型性增加、核分裂像增多及危险度增高,IMP3的阳性表达率增加,各组间比较差异有统计学意义(P<0.001);IMP3表达与Ki67指数增高呈正相关关系(r=0.348,P<0.001);3例复发病例均表达IMP3。结论:IMP3在GIST中表达与肿瘤的侵袭及危险度相关,该基因可能参与了GIST的侵袭与进展,可作为GIST预后判断的参考指标。
