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Updated: Jun 16, 2026

In Vivo Nanovector Delivery of a Heart-specific MicroRNA-sponge
Published on: June 15, 2018
miRNA modulation of the cellular stress response
Imran A Babar1, Frank J Slack, Joanne B Weidhaas
1Yale University, Department of Molecular, Cellular and Developmental Biology, PO Box 208103, New Haven, CT 06520, USA. imran.babar@yale.edu
Abstract:
Cellular stress responses are potent and dynamic, allowing cells to effectively counteract diverse stresses. These pathways are crucial not only for maintaining normal cellular homeostasis, but also for protecting cells from what would otherwise lead to their demise. A novel class of genes, termed miRNAs, has recently been implicated in the cellular stress response. For example, it has been demonstrated that a cardiac-specific miRNA that is not required for normal development is requisite for a normal cardiac stress response in mice. In addition, we have found that a miRNA family is able to modulate the cellular response to cytotoxic cancer treatment both in vitro and in vivo. In this review, we will discuss these and other important developments in the field. In particular, we will focus on studies that have linked miRNAs to the genotoxic stress response and will suggest how this connection may be both important for our understanding of biology and pertinent for the development of novel cancer therapies.
Insights
MicroRNAs (miRNAs) are newly identified regulators of cellular stress responses, crucial for homeostasis and survival. This review highlights their role in genotoxic stress and potential in developing new cancer therapies.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- Cellular stress responses are vital for maintaining homeostasis and preventing cell death.
- MicroRNAs (miRNAs) are a novel class of genes emerging as key players in these responses.
- Specific miRNAs have been shown to be essential for normal cardiac stress response and modulating responses to cancer treatments.
Purpose of the Study:
- To review the emerging role of miRNAs in cellular stress responses.
- To focus on the link between miRNAs and genotoxic stress.
- To explore the potential of miRNAs in developing novel cancer therapies.
Main Methods:
- Literature review of studies investigating miRNAs and cellular stress.
- Analysis of research linking miRNAs to genotoxic stress response.
- Discussion of in vitro and in vivo studies on miRNA function in cancer treatment.
Main Results:
- miRNAs are implicated in modulating cellular responses to various stresses.
- A cardiac-specific miRNA is essential for cardiac stress response in mice.
- miRNA families can influence cellular responses to cytotoxic cancer therapy.
Conclusions:
- The connection between miRNAs and genotoxic stress is significant for biological understanding.
- miRNAs represent a promising avenue for the development of novel cancer therapies.
- Further research into miRNA-mediated stress responses could yield therapeutic breakthroughs.
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