Expression and Clinical Significance of ROR1,EGFR and Ki-67 in Lung Adenocarcinoma with Different Histological Types
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摘要:
目的 研究受体酪氨酸激酶样孤儿受体1(receptor tyrosine kinase-like orphan rectetpor 1,ROR1)、表皮生长因子受体(epidermal growth factor receptor,EGFR)和细胞增殖核抗原(cell proliferation nuclear antigen,Ki-67)在不同分化程度浸润性肺腺癌组织中表达的临床意义及三者的相关性,探索三者在辅助判断肺腺癌病理组织分级中的应用价值。 方法 选取2019年6月至2021年6月昆明医科大学第一附属医院收治并经病理确诊的290例浸润性肺腺癌,采集癌组织标本行HE染色后,采用IASLC标准进行组织学分级,通过免疫组化染色,使用半定量法判读ROR1,EGFR和Ki-67的表达水平,统计分析ROR1,EGFR和Ki-67高表达与不同病理特征的关系及三者的相关性。 结果 ROR1,EGFR和Ki-67均高表达于低分化的浸润性肺腺癌,在高、中、低分化组间的表达存在差异且有统计学意义(P < 0.05);三者的表达水平与患者的性别、年龄和吸烟史无关(P > 0.05),与肿瘤直径、组织学形态、淋巴结转移、神经侵犯、脉管侵犯及胸膜侵犯等侵袭性生物学行为相关(P < 0.05);ROR1与EGFR的表达呈正相关(C = 0.342,P < 0.001);ROR1与Ki-67的表达呈正相关(C = 0.287,P < 0.001)。 结论 ROR1可以联合EGFR和Ki-67判断肿瘤的分化程度及肿瘤生物学特征,为肺腺癌患者预后判断与治疗方案选择提供参考依据。 Abstract:Objective To investigate the clinical significance of receptor tyrosine kinase-like orphan receptor 1 (ROR1), epidermal growth factor receptor (EGFR), and cell proliferation nuclear antigen (Ki-67) expression in invasive pulmonary adenocarcinoma (IPA) of different histological grades, and to explore their value in assisting the pathological grading of IPA. Methods A total of 290 patients with pathologically confirmed IPA admitted to the First Affiliated Hospital of Kunming Medical University from June 2019 to June 2021 were enrolled. Cancer tissue specimens were collected and stained with hematoxylin and eosin (HE). Histological grading was performed according to the International Association for the Study of Lung Cancer (IASLC) criteria. The expression levels of ROR1, EGFR and Ki-67 were determined by immunohistochemical staining using a semi-quantitative scoring method. Statistical analyses were conducted to evaluate the association of high expression of ROR1, EGFR and Ki-67 with different clinicopathological features and the correlations among these three markers. Results High expression levels of ROR1, EGFR and Ki-67 were observed in poorly differentiated IPA, and significant differences in expression were found among well-differentiated, moderately differentiated, and poorly differentiated groups (P < 0.05). The expression levels of these markers were not associated with patient sex, age, or smoking history (P > 0.05), but were significantly correlated with aggressive biological behaviors including tumor diameter, histological morphology, lymph node metastasis, nerve invasion, vascular invasion, and pleural invasion (P < 0.05). Positive correlations were found between ROR1 and EGFR expression (C = 0.342, P < 0.001) and between ROR1 and Ki-67 expression (C = 0.287, P < 0.001). Conclusion ROR1 in combination with EGFR and Ki-67 may help determine the differentiation degree and biological characteristics of IPA, providing reference evidence for prognosis assessment and treatment decision-making in patients with pulmonary adenocarcinoma. -
Key words:
- Lung adenocarcinoma /
- ROR1 /
- EGFR /
- Ki-67 /
- Degree of differentiation.
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表 1 肺腺癌临床病理学特征与ROR1,EGFR和Ki-67表达水平的关系 [n(%)]
Table 1. Relationship between clinicopathological features and expression levels of ROR1,EGFR and Ki-67 in lung adenocarcinoma [n(%)]
临床病理特征 n ROR1 EGFR Ki-67 高表达 χ2 P 高表达 χ2 P 高表达 χ2 P 性别 0.78 0.421 3.11 0.115 0.02 1.000 男 120 91(75.8) 110(91.7) 24(20.0) 女 170 121(71.2) 164(96.5) 33(19.4) 年龄(岁) 0.39 0.631 0.85 0.536 0.73 0.475 <65 227 164(72.2) 213(93.8) 47(20.7) ≥65 63 48(76.2) 61(96.8) 10(15.9) 肿瘤直径(cm) 6.71 0.012 5.19 0.028 26.05 <0.001 ≤2.5 222 154(69.4) 206(92.8) 29(13.1) >2.5 68 58(85.3) 68(100.0) 28(41.2) 组织学形态 73.92 <0.001 28.90 <0.001 139.35 <0.001 贴壁型 54 16(29.6) 43(79.6) 0(0.0) 腺泡型 125 97(77.6) 121(96.8) 11(8.8) 乳头型 49 38(77.6) 48(98.0) 4(8.2) 微乳头型 30 30(100.0) 30(100.0) 13(43.3) 实体型 32 31(96.9) 32(100.0) 29(90.6) 淋巴结转移 7.32 0.007 4.05 0.048 8.95 0.005 无 234 163(69.7) 218(93.2) 38(16.2) 有 56 49(87.5) 56(100.0) 19(33.9) 神经侵犯 21.36 <0.001 4.42 0.050 237.06 <0.001 无 230 154(67.0) 214(93.0) 3(1.3) 有 60 58(96.7) 60(100.0) 54(90.0) 脉管侵犯 38.28 <0.001 5.07 0.026 109.23 <0.001 无 198 123(62.1) 183(92.4) 6(3.0) 有 92 89(96.7) 91(98.9) 51(55.4) 胸膜侵犯 24.67 <0.001 4.45 0.045 107.83 <0.001 无 204 132(64.7) 189(92.6) 8(3.9) 有 86 80(93.0) 85(98.8) 49(57.0) 与ROR1低表达组、EGFR低表达组和Ki-67低表达组比较,*P < 0.05。 表 2 不同分化程度肺腺癌中ROR1的表达[n(%)]
Table 2. Expression of ROR1 in lung adenocarcinoma with different degrees of differentiation [n(%)]
肺腺癌病理分级 n ROR1 χ2 P 高表达 低表达 高分化 57 18(31.58) 39(68.42) 63.991 <0.001* 中分化 203 166(81.77) 37(18.23) 低分化 30 28(93.33) 2(6.67) *P < 0.05。 表 3 不同分化程度肺腺癌中EGFR的表达[n(%)]
Table 3. Expression of EGFR in lung adenocarcinoma with different degrees of differentiation [n(%)]
肺腺癌病理分级 n EGFR χ2 P 高表达 低表达 高分化 57 46(80.70) 11(19.30) 26.151 <0.001* 中分化 203 198(97.54) 5(2.46) 低分化 30 30(100.00) 0(0.00) *P < 0.05。 表 4 不同分化程度肺腺癌中Ki-67的表达[n(%)]
Table 4. Expression of Ki-67 in lung adenocarcinoma with different degrees of differentiation[n(%)]
肺腺癌病理分级 n Ki-67 χ2 P 高表达 低表达 高分化 57 2(3.51) 55(96.49) 98.423 <0.001* 中分化 203 29(14.29) 174(85.71) 低分化 30 26(86.67) 4(13.33) *P < 0.05。 表 5 ROR1和EGFR、Ki-67在肺腺癌中表达的相关性
Table 5. Correlation of ROR1and EGFR,Ki-67 expression in lung adenocarcinoma
组别 EGFR高表达(n = 274) EGFR低表达(n = 16) Ki-67高表达(n = 57) Ki-67低表达(n = 233) ROR1高表达(n = 212) 211 1 57 155 ROR1低表达(n = 78) 63 15 0 78 χ2/P 38.493/P < 0.001* 26.102/P < 0.001* C/P 0.342/P < 0.001* 0.287/P < 0.001* *P < 0.05。 -
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