■喉癌(LC)是临床实践中最常见的头颈部鳞状细胞癌之一,它的发病率近年来一直在增加,但患者预后不佳。因此,重新认识和深入研究LC的病因和机制,探索新的有效治疗方法和策略至关重要。在这项研究中,我们分析了双氢青蒿素(DHA)通过骨膜素(POSTN)/Yes相关蛋白(YAP)/白细胞介素(IL)-6通路对LC病理进展的影响,为临床提供新的参考和指导。
■POSTN,YAP,检测了我院18对新鲜LC组织和邻近组织中的IL-6水平。此外,购买LCTU686细胞系用于各种浓度的DHA处理以检测细胞生物学行为的变化。最后,我们用C57BL/6小鼠建立了荷瘤小鼠模型,并对动物胃内给予DHA以观察活体肿瘤的生长并测量POSTN,YAP,和IL-6在肿瘤组织中的表达。
■如PCR所示,西方印迹,和免疫组织化学,POSTN,YAP,IL-6在LC组织中的表达高于邻近组织。在细胞实验中,DHA干预后,LC细胞的克隆率降低,凋亡率增加,160μmol/L的DHA对LC活性的抑制作用最显著。此外,DHA干预的细胞表现出显著降低的POSTN,YAP,和IL-6水平。最后,在裸鼠中的肿瘤发生实验显示,DHA给药后肿瘤生长受到抑制。始终如一,POSTN的表达,YAP,和IL-6在活肿瘤中降低。
■DHA可抑制POSTN/YAP/IL-6的转导,加速LC细胞凋亡,减轻LC的恶性进展。
UNASSIGNED: Laryngeal cancer (LC) is one of the most common squamous cell carcinomas of the head and neck in clinical practice, and its incidence has been increasing in recent years, but the prognosis of the patients is not favorable. Hence, it is critical to re-understand and deeply study the causes and mechanisms of LC and explore new effective treatment methods and strategies. In this study, we analyzed the effect of Dihydroartemisinin (DHA) on the pathological progression of LC through the periostin (POSTN)/Yes-associated protein (YAP)/interleukin (IL)-6 pathway, which can provide new clinical references and guidelines.
UNASSIGNED: POSTN, YAP, and IL-6 levels in 18 pairs of fresh LC tissues and adjacent counterparts in our hospital were detected. Additionally, LC TU686 cell line was purchased for DHA treatment of various concentrations to detect changes in cell biological behavior. Finally, we built a tumor-bearing mouse model with C57BL/6 mice and intragastrically administrated DHA to the animals to observe the growth of living tumors and to measure POSTN, YAP, and IL-6 expression in tumor tissues.
UNASSIGNED: As indicated by PCR, Western blotting, and immunohistochemistry, POSTN, YAP, and IL-6 presented higher expression in LC tissues than in adjacent counterparts. In cell experiments, the cloning rate of LC cells decreased and the apoptosis rate increased after DHA intervention, with 160 μmol/L DHA contributing to the most significant effect on LC activity inhibition. Furthermore, DHA-intervened cells exhibited markedly reduced POSTN, YAP, and IL-6 levels. Finally, the tumorigenesis experiment in nude mice showed inhibited tumor growth after DHA administration. And consistently, the expressions of POSTN, YAP, and IL-6 in living tumors decreased.
UNASSIGNED: DHA can inhibit POSTN/YAP/IL-6 transduction, accelerate LC cell apoptosis, and alleviate the malignant progression of LC.