Department of Otolaryngology Head and Neck Surgery, the First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei, China.
Department of Gastroenterology, the First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei, China.
Bioengineered. 2022 May;13(5):12572-12582. doi: 10.1080/21655979.2022.2073125.
Papillary thyroid cancer (PTC) is one of the most prevalent endocrine malignancies and is associated with severe morbidity and high mortality. This study aimed to explore the role of long non-coding RNA (lncRNA) SLC8A1 antisense RNA 1 (SLC8A1-AS1) in the pathogenesis of PTC. In this study, we explored the function of SLC8A1-AS1 in PTC progression. We observed that the expression of SLC8A1-AS1 was downregulated in clinical PTC samples and PTC cell lines compared to that in normal controls. Cell counting kit (CCK)-8 assays demonstrated that the overexpression of SLC8A1-AS1 significantly reduced the proliferation of PTC cells. Consistently, apoptosis of PTC cells was enhanced by SLC8A1-AS1 overexpression. SLC8A1-AS1 overexpression attenuated the invasion and migration of PTC cells. Mechanistically, SLC8A1-AS1 maintained NUMB like endocytic adaptor protein (Numbl) mRNA stability by interacting with FUS RNA Binding Protein (FUS) in PTC cells. Depletion of Numbl reversed the inhibitory effect of SLC8A1-AS1 overexpression on PTC. Thus, we concluded that SLC8A1-AS1 suppresses PTC progression via the FUS/Numbl axis. Our findings provide novel insights into the mechanism underlying SLC8A1-AS1 attenuation of the malignant development of PTC, improving our understanding of the association between lncRNAs and PTC. SLC8A1-AS1 and FUS may be potential targets for PTC treatment.
甲状腺乳头状癌(PTC)是最常见的内分泌恶性肿瘤之一,与严重的发病率和高死亡率相关。本研究旨在探讨长链非编码 RNA(lncRNA)SLC8A1 反义 RNA 1(SLC8A1-AS1)在 PTC 发病机制中的作用。在本研究中,我们探讨了 SLC8A1-AS1 在 PTC 进展中的功能。我们观察到,与正常对照相比,临床 PTC 样本和 PTC 细胞系中 SLC8A1-AS1 的表达下调。细胞计数试剂盒(CCK)-8 测定表明,SLC8A1-AS1 的过表达显著降低了 PTC 细胞的增殖。一致地,SLC8A1-AS1 的过表达增强了 PTC 细胞的凋亡。SLC8A1-AS1 的过表达减弱了 PTC 细胞的侵袭和迁移。机制上,SLC8A1-AS1 通过与 FUS RNA 结合蛋白(FUS)相互作用维持 PTC 细胞中 NUMB 样内吞衔接蛋白(Numbl)mRNA 的稳定性。Numbl 的耗竭逆转了 SLC8A1-AS1 过表达对 PTC 的抑制作用。因此,我们得出结论,SLC8A1-AS1 通过 FUS/Numbl 轴抑制 PTC 的进展。我们的研究结果为 SLC8A1-AS1 减弱 PTC 恶性发展的机制提供了新的见解,提高了我们对 lncRNA 与 PTC 之间关联的理解。SLC8A1-AS1 和 FUS 可能是 PTC 治疗的潜在靶点。