Molecular insights into the physiological impact of low-frequency noise on sea slug Onchidium reevesii: Activation of p53 signaling and oxidative stress response

文献类型： 外文期刊

第一作者： Tu, Zhihan

作者： Tu, Zhihan;Tang, Liusiqiao;Shen, Heding;Hu, Menghong;Abo-Raya, Mohamed H.;Wang, Youji;Tu, Zhihan;Wang, Xiaotong;Chen, Feng;Abo-Raya, Mohamed H.

作者机构：

关键词： Onchidium reevesii; Low-frequency noise; p53 signaling pathway; Oxidative stress; Apoptosis

期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：8.4； 五年影响因子：8.6 ）

ISSN： 0301-4797

年卷期： 2025 年 373 卷

页码：

收录情况： SCI

摘要： To investigate the regulatory role of tumor protein p53 of sea slug (Onchidium reevesii) under oxidative stress conditions, we examined the response mechanisms of O. reevesii to low-frequency noise pollution (1000 Hz) using molecular and cellular biology techniques. We successfully cloned the O. reevesii p53 gene (Orp53) from O. reevesii, obtaining a 3356 bp sequence containing a 2727 bp open reading frame (ORF). Phylogenetic analysis revealed that O. reevesii shares a close evolutionary relationship with other molluscs, including Bulinus truncatus and Elysia marginata. Expression analysis showed that Orp53 is expressed across various tissues, with the highest expression levels in the hepatopancreas. Using RNA interference (RNAi) to silence the Orp53 gene, we found that the mRNA expressions of Orp53 and its downstream apoptosis-related genes, including cytochrome C (Cyt_C), Caspase 9, and Caspase 3, were significantly suppressed until the third day of interference (P < 0.05). Moreover, sip53 treatment resulted in significant reductions in the mRNA expression and protein levels of all studied genes (P < 0.05) compared to the noise-exposed group. In addition, the low-frequency noise exposure decreased central nervous system (CNS) viability while increasing oxidative stress markers, including reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), and glutathione S-transferase (GST). On the other hand, silencing Orp53 expression via siRNA resulted in significant reductions in CNS cell viability (P < 0.05). Our study establishes a molecular basis for evaluating the consequences of marine noise pollution, confirming that low-frequency noise activates the p53 signaling pathway, oxidative stress, and that p53 can regulate oxidative stress and apoptosis-related genes.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序