在恶性和非恶性甲状腺瘤中对NOX4蛋白表达的比较分析
Salma Fenniche1,2,3,4, Mohamed Oukabli5,6, Yassire Oubaddou1
1Laboratory of Biology of Human Pathologies (BioPatH), Faculty of Sciences, Mohammed V University in Rabat, Rabat 1014, Morocco.
Current issues in molecular biology
|July 28, 2023
概括
在乳头甲状腺癌 (PTC) 瘤中,NADPH氧化酶NOX4表达升高,特别是在具有BRAF V600E突变的瘤中. 高NOX4蛋白水平可能表明PTC的攻击性.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 生物化学 生物化学
背景情况:
- NADPH氧化酶NOX4与反应性氧物种的产生有关.
- 以前的TCGA数据表明,在BRAF V600E突变的乳头甲状腺癌 (PTC) 中,NOX4转录的上调.
- 在恶性与非恶性甲状腺组织中缺乏NOX4的蛋白质水平分析.
研究的目的:
- 为了研究和比较NOX4蛋白表达在各种恶性和非恶性甲状腺瘤.
- 为了将NOX4蛋白水平与PTC中BRAF V600E突变的存在相关联.
- 探索NOX4作为一个潜在的PTC攻击性的生物标志物.
主要方法:
- 免疫组织化学染色被用于评估NOX4蛋白质表达.
- 分析的组织包括经典的PTC (C-PTC),毛囊变异PTC (F-PTC),厌塑性甲状腺癌 (ATC),淋巴细胞性甲状腺炎,格雷夫斯病,子和过度形成.
- 使用桑格测序和数字滴滴PCR进行了BRAF V600E突变检测.
主要成果:
- 与F-PTC (52.9%) 和ATC (33.3%) 相比,C-PTC (92.9%) 的NOX4蛋白表达显著更高.
- 所有携带BRAF V600E突变的C-PTC瘤都表现出高NOX4蛋白水平,证实了强烈的相关性.
- 独立于BRAF状态,90%的透C-PTC显示高NOX4表达,并且在非恶性甲状腺疾病中也观察到高NOX4表达.
结论:
- 在C-PTC中,NOX4蛋白被上调,特别是在具有BRAF V600E突变的瘤中.
- 在C-PTC中高NOX4表达表明其作为瘤侵略性的补充生物标志物的潜在实用性.
- NOX4在恶性和非恶性甲状腺组织中都高度表达,这表明它有不同的作用.
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