Related Experiment Video
Updated: Feb 8, 2026

16:24
Profiling of Estrogen-regulated MicroRNAs in Breast Cancer Cells
Published on: February 21, 2014
20.7K
MicroRNAs Regulating MicroRNAs in Cancer
1School of Biomedical Engineering, Faculty of Engineering and IT, The University of Technology Sydney, NSW, Australia.
Trends in Cancer
|June 26, 2018
Summary
MicroRNAs (miRNA) can regulate each other through miRNA-miRNA interactions, a process poorly understood. This review explores these interactions, their mechanisms, and significance in cancer development.
Area of Science:
- Molecular Biology
- Genetics
- Cancer Research
Background:
- MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression.
- miRNA-mediated self-regulation, or miRNA-miRNA interaction, is an emerging area of research.
- The functional implications of these interactions within the cellular environment remain largely unexplored.
Purpose of the Study:
- To review the current understanding of miRNA-miRNA interactions.
- To discuss potential molecular mechanisms underlying these interactions.
- To elucidate the role of miRNA-miRNA interactions in the pathogenesis of cancer.
Main Methods:
- Literature review of studies investigating miRNA-miRNA interactions.
- Analysis of proposed regulatory pathways and molecular mechanisms.
- Synthesis of evidence linking miRNA-miRNA interactions to cancer.
Main Results:
- Several known instances of miRNA-miRNA interactions have been identified.
- Potential mechanisms include direct binding, competition for shared targets, or allosteric modulation.
- Emerging evidence suggests these interactions play a significant role in various cancer types.
Conclusions:
- miRNA-miRNA interactions represent a novel layer of gene regulation.
- Further research is crucial to fully understand their mechanisms and biological impact.
- Targeting miRNA-miRNA interactions may offer new therapeutic strategies for cancer treatment.
Related Concept Videos
MicroRNAs
24.3K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
24.3K
MicroRNAs
4.0K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
4.0K
Regulation of Expression Occurs at Multiple Steps
26.5K
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
26.5K
Epigenetic Regulation
33.9K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
33.9K
GTPases and their Regulation
9.9K
Guanine nucleotide-binding proteins (G-proteins), also known as GTPases, are a superfamily of proteins that regulate many cellular processes, such as cell signaling, vesicular transport, and the regulation of cell shape and motility. Mutation or dysfunction of these proteins can lead to disease. There are around 40,000 known G-proteins that can broadly be classified into two groups ‒ small G-proteins consisting of a single domain and large multi-domain G-proteins.
Large G-proteins,...
Large G-proteins,...
9.9K
lncRNA - Long Non-coding RNAs
10.0K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
10.0K

