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Updated: Jul 2, 2025

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Published on: May 30, 2025
Interaction between lncRNAs and RNA-binding proteins (RBPs) influences DNA damage response in cancer chemoresistance
Forough Alemi1, Yadollah Poornajaf2, Foroogh Hosseini3
1Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
Abstract:
The DNA damage response (DDR) is a crucial cellular signaling pathway activated in response to DNA damage, including damage caused by chemotherapy. Chemoresistance, which refers to the resistance of cancer cells to the effects of chemotherapy, poses a significant challenge in cancer treatment. Understanding the relationship between DDR and chemoresistance is vital for devising strategies to overcome this resistance and improve treatment outcomes. Long non-coding RNAs (lncRNAs) are a class of RNA molecules that do not code for proteins but play important roles in various biological processes, including cancer development and chemoresistance. RNA-binding proteins (RBPs) are a group of proteins that bind to RNA molecules and regulate their functions. The interaction between lncRNAs and RBPs has been found to regulate gene expression at the post-transcriptional level, thereby influencing various cellular processes, including DDR signaling pathways. Multiple studies have demonstrated that lncRNAs can interact with RBPs to modulate the expression of genes involved in cancer chemoresistance by impacting DDR signaling pathways. Conversely, RBPs can regulate the expression and function of lncRNAs involved in DDR. Exploring these interactions can provide valuable insights for the development of innovative therapeutic approaches to overcome chemoresistance in cancer patients. This review article aims to summarize recent research on the interaction between lncRNAs and RBPs during cancer chemotherapy, with a specific focus on DDR pathways.
Insights
Long non-coding RNAs (lncRNAs) and RNA-binding proteins (RBPs) interactions are key to cancer chemoresistance. Understanding how these molecules affect the DNA damage response (DDR) pathway can help develop new therapies to overcome treatment resistance.
Area of Science:
- Molecular Biology
- Cancer Research
- Genetics
Background:
- The DNA damage response (DDR) is vital for cellular repair after DNA damage, including chemotherapy-induced damage.
- Cancer chemoresistance, where tumor cells evade chemotherapy, is a major obstacle in effective cancer treatment.
- Long non-coding RNAs (lncRNAs) and RNA-binding proteins (RBPs) are emerging regulators in cancer biology and treatment response.
Purpose of the Study:
- To review the current understanding of interactions between lncRNAs and RBPs in the context of cancer chemotherapy.
- To elucidate the role of these interactions in modulating the DNA damage response (DDR) pathways.
- To highlight the therapeutic potential of targeting lncRNA-RBP complexes for overcoming chemoresistance.
Main Methods:
- Literature review of recent studies on lncRNAs, RBPs, DDR, and chemoresistance.
- Analysis of molecular mechanisms underlying lncRNA-RBP interactions.
- Synthesis of findings related to the impact on DDR signaling and cancer treatment outcomes.
Main Results:
- lncRNAs and RBPs interact to regulate gene expression post-transcriptionally, influencing DDR signaling.
- These interactions modulate genes critical for cancer chemoresistance.
- RBPs can also regulate lncRNA expression and function within DDR pathways.
Conclusions:
- The interplay between lncRNAs and RBPs significantly impacts cancer chemoresistance by affecting DDR.
- Targeting lncRNA-RBP interactions presents a promising strategy for developing novel therapeutic approaches.
- Further research into these molecular mechanisms is crucial for advancing cancer treatment.
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