目的 觀察細(xì)胞周期素D1、Rb及p16在早期胃癌發(fā)生中的作用及相互關(guān)系。
方法 采用免疫組化SP法對(duì)39例早期胃癌癌旁腸化組織及34例非癌胃粘膜腸化組織進(jìn)行對(duì)比研究。
結(jié)果 癌組織中33/39例(84.6%)顯示細(xì)胞周期素D1過度表達(dá),癌旁腸化組織也顯示細(xì)胞周期素D1過度表達(dá)。12/39例p16表達(dá)陰性,3例呈弱陽(yáng)性。26例Rb陽(yáng)性的腫瘤中,15例顯示p16不表達(dá)或低表達(dá),而9例Rb陰性的腫瘤中則p16顯示表達(dá)增高。
結(jié)論 細(xì)胞周期素D1是早期胃癌發(fā)生過程中常見的分子異常,細(xì)胞周期素D1的激活及Rb的失活在早期胃癌中可共同存在;Rb失活與p16表達(dá)之間存在負(fù)相關(guān)關(guān)系;早期胃癌的發(fā)生可能與細(xì)胞周期素D1、p16及Rb負(fù)反饋調(diào)節(jié)環(huán)路的異常有關(guān)。
引用本文: 陳曉黎,王康敏,蘇寶山,孫潤(rùn)芹,黃鶯,強(qiáng)雷. 細(xì)胞周期素D1、Rb及p16在早期胃癌中的表達(dá)及意義. 中國(guó)普外基礎(chǔ)與臨床雜志, 2001, 8(1): 29-31. doi: 復(fù)制
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- 1. Constancia M, Seruca R, Carneiro F, et al. Retinoblatoma gene structure and product in human gastric carcinoma[J]. Br J Cancer, 1994; 70(5)∶1018.
- 2. Igaki H, Sasaki H, Tachimori Y, et al. Mutation frequency of the p16/CDKN2 gene in primary cancers in the upper digestive tract[J]. Cancer Res, 1995; 55(15)∶3421.
- 3. Sakata K, Tamura G, Maesawa C, et al. Loss of heterozygosity on the short arm of chromosome 9 without p16 gene mutation in gastric carcinoma [J]. Jan J Cancer Res, 1995; 86(4)∶333.
- 4. Akama Y, Yasui W, Kuniyasu H, et al. Genetic status and expression of the cyclin depent kinase inhibitor in human gastric carcinoma cell lines [J]. Jan J Cancer Res, 1996; 87(8)∶824.
- 5. 呂有勇,高崇峰,崔建濤等.胃癌中MTS1/p16基因缺失及表達(dá)異常的研究 [J].中華腫瘤雜志,1996; 18(3)∶442.
- 6. 鄧仲端,陳學(xué)詩(shī),彭杰青等.外科病理學(xué) [M].武漢:湖北科技出版社,1978∶87~88.
- 7. Gillett C, Fant V, Bartek J, et al. Amplification and overexpression of cyclin D1 in breast cancer detected by immunohistochemical staining [J]. Cancer Res, 1994; 54(9)∶1812.
- 8. Shapiro GI, Edwards CD, Kobzik L, et al. Reciprocal Rb inactivation and p16 INK4 expression in primary lung cancer and cell lines[J]. Cancer Res, 1995; 55(3)∶505.
- 9. Sakaguchi M, Fujii, Hirabayashi H, et al. Inversely correlated expression of p16 and Rb protein in nonsmall cell lung cancers:an immunohistochemical study [J]. Int J Cancer, 1996; 65(3)∶442.
- 10. Yeager T, Studler W, Belair C, et al. Increased p16 levels correlate with Rb alteratious in human urothelial cell [J]. Cancer Res, 1995; 55(3)∶493.
- 11. 藺玉昌,黃長(zhǎng)銘,劉道坤等.星形細(xì)胞瘤p16與Rb蛋白的表達(dá)及其相關(guān)性研究 [J].中華病理雜志,1997; 26(6)∶340.