Unit of Otorhinolaryngology, Head & Neck Department, University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy.
Respiratory Disease Unit, University Hospital of Modena, 41124 Modena, Italy.
Int J Mol Sci. 2023 Aug 18;24(16):12913. doi: 10.3390/ijms241612913.
Laryngeal cancer is a very common tumor in the upper aero-digestive tract. Understanding its biological mechanisms has garnered significant interest in recent years. The development of laryngeal squamous cell carcinoma (LSCC) follows a multistep process starting from precursor lesions in the epithelium. Various risk factors have been associated with laryngeal tumors, including smoking, alcohol consumption, opium use, as well as infections with HPV and EBV viruses, among others. Cancer development involves multiple steps, and genetic alterations play a crucial role. Tumor suppressor genes can be inactivated, and proto-oncogenes may become activated through mechanisms like deletions, point mutations, promoter methylation, and gene amplification. Epigenetic modifications, driven by miRNAs, have been proven to contribute to LSCC development. Despite advances in molecular medicine, there are still aspects of laryngeal cancer that remain poorly understood, and the underlying biological mechanisms have not been fully elucidated. In this narrative review, we examined the literature to analyze and summarize the main steps of carcinogenesis and the risk factors associated with laryngeal cancer.
喉癌是上呼吸道-消化道的一种常见肿瘤。近年来,人们对其生物学机制产生了浓厚的兴趣。喉鳞状细胞癌(LSCC)的发生遵循多步骤过程,始于上皮的前驱病变。各种危险因素与喉肿瘤有关,包括吸烟、饮酒、鸦片使用,以及 HPV 和 EBV 病毒感染等。癌症的发生涉及多个步骤,遗传改变起着关键作用。肿瘤抑制基因可能失活,原癌基因可能通过缺失、点突变、启动子甲基化和基因扩增等机制被激活。miRNA 驱动的表观遗传修饰已被证明有助于 LSCC 的发生。尽管分子医学取得了进展,但喉癌仍有一些方面尚未被充分了解,其潜在的生物学机制尚未完全阐明。在本叙述性综述中,我们查阅了文献,分析并总结了致癌作用的主要步骤和与喉癌相关的危险因素。