COTE-1 promotes the proliferation and invasion of small cell lung cancer by regulating autophagy activity via the AMPK/mTOR signaling pathway

The potential of targeting autophagy-related non-coding RNAs in the treatment of lung cancer

Lung cancer is the most prevalent malignant tumor worldwide and remains the leading cause of cancer-related mortality. Despite advances in treatment development, lung cancer patients often face poor quality of life and low survival rates. Increasing evidence highlights the significant roles of autophagy and non-coding RNAs (ncRNAs) in the initiation, progression, and therapeutic response of lung cancer. Autophagy and ncRNAs can function as both tumor-promoting and tumor-suppressing factors in lung cancer. Therefore, investigating the roles of autophagy and ncRNAs in lung cancer provides valuable insights into its pathophysiology. At the same time, non-coding RNA also plays an important role in regulating autophagy. This study reveals that autophagy affects the occurrence and development of lung cancer through multiple pathways. Then, we also studied that in lung cancer, ncRNAs (e.g., lncRNAs, miRNAs, circRNAs and piRNAs) can regulate autophagy to promote or inhibit tumorigenesis, metastasis and drug resistance in lung cancer. Finally, the problems and solutions of autophagy and ncRNAs in the treatment of lung cancer were explored. These findings suggest that autophagy and ncRNAs can be potential targets for the treatment of lung cancer.

Current and future therapies for small cell lung carcinoma

Small cell lung cancer (SCLC) is an aggressive malignancy characterized by rapid proliferation and high metastatic potential. It is characterized by universal inactivation of and RB1, overexpression of the MYC family and dysregulation of multiple oncogenic signaling pathways. Among different patients, SCLCs are similar at the genetic level but exhibit significant heterogeneity at the molecular level. The classification of SCLC has evolved from a simple neuroendocrine (NE)/non-neuroendocrine (non-NE) classification system to a transcription factor-based molecular subtype system; lineage plasticity adds further complexity and poses challenges for therapeutic development. While SCLC is initially sensitive to platinum-based chemotherapy, resistance develops rapidly, leading to a dismal prognosis. Various antibodies, including PD-1/PD-L1 inhibitors and antibody‒drug conjugates, have been introduced into clinical practice or are being evaluated in clinical trials. However, their therapeutic benefits for SCLC patients remain limited. This review summarizes SCLC carcinogenic mechanisms, tumor heterogeneity, and the immune microenvironment of SCLC, with a focus on recent advances in metastasis and resistance mechanisms. Additionally, the corresponding clinical progress in tackling these challenges is discussed.

Mechanistic study of METTL3 inducing ferroptosis to promote cervical cancer progression through mediating m6A modification of COTE-1

Cervical Cancer (CC) is one of the leading causes of tumor-related deaths among women worldwide, and the mechanisms underlying the anti-ferroptosis of CC cells are still unclear. Methyltransferase like 3 (METTL3) is widely expressed various types of tissues and plays a crucial role in tumorigenesis in part by mediating cell death. However, its regulatory function in CC progression and especially the underlying mechanisms have not been fully elucidated. This study aims to explore the role of METTL3 in the ferroptosis of CC cells. Mechanistically, by MeRIP-seq, we identified COTE-1 as a target of METTL3 mediated m6A modification, and revealed that METTL3-mediated COTE-1 expression was dependent on the m6A reader-dependent manner. Functionally, in vitro and in vivo experiments that METTL3 promotes proliferation and metastasis of CC cells by regulating COTE-1 expression. In addition, the study verified the effect of the METTL3/COTE-1 axis on autophagy-dependent ferroptosis. In summary, METTL3 influences CC progression by mediating COTE-1 to influence autophagy-dependent ferroptosis, representing a potential therapeutic approach for treating CC.

Global research and emerging trends in autophagy in lung cancer: a bibliometric and visualized study from 2013 to 2022

Purpose: To highlight the knowledge structure and evolutionary trends in research on autophagy in lung cancer. Methods: Research publications on autophagy in lung cancer were retrieved from the Web of Science Core Collection database. VOSviewer and CiteSpace data analysis software were used for the bibliometric and visualization analysis of countries, institutions, authors, journals, and keywords related to this field. Results: From 2013 to 2022, research on autophagy in lung cancer developed rapidly, showing rising trends in annual publications and citations. China (1,986 papers; 48,913 citations), Shandong University (77 publications; 1,460 citations), and Wei Zhang (20 publications; 342 citations) were the most productive and influential country, institution, and author, respectively. The journal with the most publications and citations on autophagy in lung cancer was the International Journal of Molecular Sciences (93 publications; 3,948 citations). An analysis of keyword co-occurrence showed that related research topics were divided into five clusters: 1) Mechanisms influencing autophagy in lung cancer and the role of autophagy in lung cancer; 2) Effect of autophagy on the biological behavior of lung cancer; 3) Regulatory mechanisms of 2 cell death processes: autophagy and apoptosis in lung cancer cells; 4) Role of autophagy in lung cancer treatment and drug resistance; and 5) Role of autophagy-related genes in the occurrence and development of lung cancer. Cell proliferation, migration, epithelial-mesenchymal transition, and tumor microenvironment were the latest high-frequency keywords that represented promising future research directions. Conclusion: This is the first comprehensive study describing the knowledge structure and emerging frontiers of research on autophagy in lung cancer from 2013 to 2022 by means of a bibliometric analysis. The study points to promising future research directions focusing on in-depth autophagy mechanisms, clinical applications, and potential therapeutic strategies, providing a valuable reference for researchers in the field. Systematic Review Registration: [https://systematicreview.gov/], identifier [registration number].