microRNA, Cancer and Cancer Chemoprevention

Xun Che1, Chuanshu Huang

  • 1Nelson Institute of Environmental Medicine, New York University School of Medicine, 57 Old Forge Road, Tuxedo, NY 10987. chuanshu.huang@nyumc.org.

Insights

MicroRNAs (miRNAs) regulate gene expression and can act as oncogenes or antineoplastics. This review explores their role in cancer chemoprevention and control.

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • MicroRNAs (miRNAs) are non-coding RNAs that regulate gene expression by targeting messenger RNAs (mRNAs).
  • miRNAs can influence gene expression by inhibiting translation or promoting mRNA degradation.
  • Their dual role as oncogenic or antineoplastic depends on their specific mRNA targets.

Purpose of the Study:

  • To review the implications of miRNAs in cancer chemoprevention.
  • To explore the role of miRNAs in cancer control strategies.
  • To elucidate the molecular mechanisms underlying these effects.

Main Methods:

  • Literature review of scientific articles on miRNA function in cancer.
  • Analysis of studies investigating miRNA involvement in chemoprevention and chemotherapy.
  • Synthesis of information on molecular pathways regulated by miRNAs in cancer.

Main Results:

  • miRNAs are implicated in both promoting and suppressing cancer development.
  • Specific miRNAs show potential for cancer chemoprevention by targeting oncogenic pathways.
  • miRNAs are increasingly recognized for their roles in cancer treatment and prognosis.

Conclusions:

  • miRNAs are critical regulators in cancer biology with significant potential in chemoprevention.
  • Understanding miRNA mechanisms can lead to novel strategies for cancer control.
  • Further research is needed to fully harness miRNA therapeutics for cancer management.

Related Concept Videos

MicroRNAs01:22

MicroRNAs

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...
MicroRNAs01:22

MicroRNAs

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 ends...
MicroRNAs01:22

MicroRNAs

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 ends...
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...