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Published on: June 9, 2023
Autophagy signaling mediated by non-coding RNAs: Impact on breast cancer progression and treatment
Lei Yan1, Zhuo Quan1, Tiantian Sun2
1Clinical Experimental Centre, Xi'an International Medical Center Hospital, No.777 Xitai Road, High-tech Zone, Xi'an, Shaanxi Province, 710100, China; Xi'an Engineering Technology Research Center for Cardiovascular Active Peptide, Xi'an, Shaanxi, 710100, China.
Abstract:
Autophagy, a conserved cellular mechanism which detoxifies and degrades intracellular structures or biomolecules, has been identified as an important factor in the progression of human breast cancer and the development of treatment resistance. Non-coding RNAs (ncRNAs), a broad family of RNA, have the ability to influence various processes, including autophagy, due to their diverse downstream targets. ncRNAs play an important role in suppressing or activating autophagy by targeting autophagy-triggering components such as the ULK1 complex, Beclin1, and ATGs. Recent research has uncovered the intricate regulatory networks that govern autophagy dynamics, with ncRNAs emerging as key participants in this network. miRNAs, lncRNAs, and circRNAs are the three subfamilies of ncRNAs that have the most well-known interactions with autophagy, particularly macroautophagy. The high prevalence of breast cancer necessitates research into finding new biological processes that can help in early detection as well as enhance the effectiveness of treatment. The positive/negative link between autophagy and ncRNAs can be exploited as a supplementary therapy to improve sensitivity to treatment in breast cancer. This review investigates the regulatory roles of ncRNAs, particularly microRNAs (miRNAs), in modifying autophagy pathways in human breast cancer progression and treatment. However, future studies and clinical practice are needed to determine the most relevant microRNAs as biomarkers and also to better understand their role in breast cancer progression or treatment through modifying autophagy.
Insights
Non-coding RNAs (ncRNAs) regulate autophagy, a cellular process crucial in breast cancer progression and treatment resistance. Understanding these interactions may lead to novel therapeutic strategies for breast cancer.
Area of Science:
- Molecular Biology
- Oncology
- Cell Biology
Background:
- Autophagy is a cellular degradation process implicated in breast cancer progression and treatment resistance.
- Non-coding RNAs (ncRNAs) are key regulators of cellular processes, including autophagy.
- ncRNAs influence autophagy by targeting critical components like the ULK1 complex, Beclin1, and ATGs.
Purpose of the Study:
- To review the regulatory roles of ncRNAs, especially microRNAs (miRNAs), in modulating autophagy pathways in human breast cancer.
- To explore the potential of exploiting the autophagy-ncRNA axis for improved breast cancer treatment strategies.
Main Methods:
- Literature review of recent research on ncRNAs and autophagy in breast cancer.
- Analysis of the interactions between different ncRNA subtypes (miRNAs, lncRNAs, circRNAs) and autophagy pathways.
- Investigation of the impact of these interactions on breast cancer progression and therapeutic response.
Main Results:
- ncRNAs, including miRNAs, lncRNAs, and circRNAs, significantly regulate autophagy in breast cancer.
- These ncRNAs can either suppress or activate autophagy, influencing cancer cell behavior and treatment sensitivity.
- The interplay between ncRNAs and autophagy presents potential therapeutic targets for breast cancer.
Conclusions:
- ncRNAs are critical regulators of autophagy in breast cancer, impacting disease progression and treatment outcomes.
- Targeting the autophagy-ncRNA axis offers a promising avenue for developing novel therapeutic strategies to enhance treatment sensitivity in breast cancer.
- Further research is needed to identify specific miRNAs as biomarkers and elucidate their precise roles in breast cancer through autophagy modulation.
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