Volume 102

Hydrogen sulfide (H₂S), as a critical gasotransmitter, plays a dual role in regulating tumor growth depending on its concentration and tumor type. In nasopharyngeal carcinoma (NPC), systematic reviews have demonstrated the involvement of H₂S in multiple cellular processes, including cell proliferation, apoptosis, and metastasis. This study systematically explores the molecular mechanisms of H₂S in NPC, focusing on its role in modulating signaling pathways, for example, PI3K/AKT, Wnt/β-catenin, and ROS-mediated pathways. The findings indicate that H₂S exerts its effects by regulating the expression of oncogenes and tumor suppressor genes, altering the tumor microenvironment, and influencing mitochondrial function. These insights provide a foundation for novel therapeutic strategies targeting H₂S metabolism in NPC.

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In the context of rising global CO₂ content, Carbon Capture, Utilization and Storage (CCUS) has come into people's attention because it can effectively reduce atmospheric CO₂ content. CCUS is mainly divided into three steps: capture, utilization and storage. Researchers have developed corresponding technologies that can improve efficiency and reduce losses in each link, and mature demonstration projects have emerged. However, the current development of CCUS still faces many difficulties, such as the technology is not mature enough, the integration level is low, the investment cost is high, the relevant talent shortage, and the business model is not yet formed and unclear. However, researchers have proposed some feasible solutions. This paper focuses on the CCUS process, outstanding related technologies, and lists some demonstration projects. In addition, it also summarizes the problems and solutions facing the current development of CCUS. Finally, the future of CCUS is prospected.

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