Department of Obstetrics and Gynaecology, Hsinchu Mackay Memorial Hospital, Hsinchu City, Taiwan.
Department of Medicine, Mackay Medical College, New Taipei City, Taiwan.
Int J Med Sci. 2020 May 18;17(9):1187-1195. doi: 10.7150/ijms.44583. eCollection 2020.
The purposes of the investigation were to examine the implications of long noncoding RNA growth arrest-specific transcript 5 (GAS5) in progression and clinicopathological factors of uterine cervical cancer, and patient survival in Taiwan. Genotypic distributions of two GAS5 genetic variants rs145204276 and rs55829688 were detected in 208 patients including 111 patients with invasive cancer, 97 with precancerous lesions as well as 307 control women using real-time polymerase chain reaction. It explored that patients with cervical precancerous lesion had lower rate of AGGCA deletion (Del) in both alleles (Del/Del) of GAS5 rs145204276 as compared with control women. Patients with invasive cancer did not exhibit higher rate of Del/Del. Meanwhile, there were no different genotypic distributions in rs55829688 among patients with cervical invasive cancer and those with precancerous lesions as well as control women. Moreover, cervical cancer patients with Ins (insertion, AGGCA)/Del and Del/Del (-/-) in GAS5 rs55829688 tended to have poorer hazard ratio (HR) of 5 years survival. In addition, lymph node metastasis status exerted the most significantly predictive of 5 years survival rate. Conclusively, GAS5 polymorphism rs145204276 is probably applicable to predict 5 years survival HR of cervical cancer patients. However, the mechanism elucidating the methylation status and transcription function of rs145204276 in uterine cervical cancer needs to be delineated for its unique implication in uterine cervical cancer.
本研究旨在探讨长链非编码 RNA 生长停滞特异性转录物 5(GAS5)在台湾地区宫颈癌进展和临床病理因素及患者生存中的意义。采用实时聚合酶链反应,检测了 208 例患者(包括 111 例浸润性癌患者、97 例癌前病变患者和 307 例对照妇女)中两个 GAS5 遗传变异体 rs145204276 和 rs55829688 的基因型分布。结果表明,与对照组妇女相比,宫颈癌前病变患者 GAS5 rs145204276 两个等位基因(Del/Del)的 AGGCA 缺失(Del)率较低。浸润性癌患者未表现出更高的 Del/Del 率。同时,rs55829688 在宫颈癌浸润性癌患者、癌前病变患者和对照组妇女中的基因型分布无差异。此外,GAS5 rs55829688 中 Ins(插入,AGGCA)/Del 和 Del/Del(-/-)的宫颈癌患者 5 年生存率的危险比(HR)较低。此外,淋巴结转移状态对 5 年生存率的预测最具显著意义。总之,GAS5 多态性 rs145204276 可能适用于预测宫颈癌患者 5 年生存率 HR。然而,需要阐明 rs145204276 在宫颈癌中的甲基化状态和转录功能机制,以阐明其在宫颈癌中的独特意义。