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Updated: Dec 12, 2025

In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice
Published on: August 23, 2019
Key MicroRNA's and Their Targetome in Adrenocortical Cancer
Marthe Chehade1,2, Martyn Bullock1,2, Anthony Glover1,2,3
1Cancer Genetics Laboratory, Kolling Institute, Northern Sydney Local Health District, St. Leonards, NSW 2065, Australia.
Abstract:
Adrenocortical Carcinoma (ACC) is a rare but aggressive malignancy with poor prognosis and limited response to available systemic therapies. Although complete surgical resection gives the best chance for long-term survival, ACC has a two-year recurrence rate of 50%, which poses a therapeutic challenge. High throughput analyses focused on characterizing the molecular signature of ACC have revealed specific micro-RNAs (miRNAs) that are associated with aggressive tumor phenotypes. MiRNAs are small non-coding RNA molecules that regulate gene expression by inhibiting mRNA translation or degrading mRNA transcripts and have been generally implicated in carcinogenesis. This review summarizes the current insights into dysregulated miRNAs in ACC tumorigenesis, their known functions, and specific targetomes. In addition, we explore the possibility of particular miRNAs to be exploited as clinical biomarkers in ACC and as potential therapeutics.
Insights
Adrenocortical carcinoma (ACC) is a rare cancer. MicroRNAs (miRNAs) are implicated in ACC development and may serve as biomarkers or therapeutic targets for this aggressive malignancy.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Adrenocortical carcinoma (ACC) is a rare, aggressive endocrine malignancy with a poor prognosis.
- Complete surgical resection offers the best survival chance, but ACC recurs in 50% of patients within two years.
- MicroRNAs (miRNAs) are small non-coding RNAs regulating gene expression and are implicated in various cancers, including ACC.
Purpose of the Study:
- To review current knowledge on dysregulated miRNAs in adrenocortical carcinoma tumorigenesis.
- To summarize the functions and target genes of specific miRNAs involved in ACC.
- To explore the potential of miRNAs as diagnostic biomarkers and therapeutic targets for ACC.
Main Methods:
- Literature review of studies on miRNA expression and function in adrenocortical carcinoma.
- Analysis of high-throughput sequencing data identifying dysregulated miRNAs in ACC.
- Examination of known miRNA targetome databases and functional studies.
Main Results:
- Specific miRNAs are significantly dysregulated in ACC and correlate with aggressive tumor phenotypes.
- These miRNAs regulate key oncogenic pathways involved in ACC development and progression.
- Identified miRNAs exhibit potential as diagnostic biomarkers and therapeutic targets.
Conclusions:
- Dysregulated miRNAs play a crucial role in adrenocortical carcinoma tumorigenesis.
- Targeting specific miRNAs offers a promising avenue for novel therapeutic strategies in ACC.
- MiRNAs hold potential for development into valuable clinical biomarkers for ACC management.
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