Role of MicroRNAs in Prostate Cancer Pathogenesis

You-Lin Wang1, Shuai Wu1, Bo Jiang1

  • 1Department of Urology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, China.

Insights

MicroRNAs (miRNAs) are small molecules that regulate gene expression and are increasingly linked to prostate cancer (PCa) development. Research highlights their role in PCa progression, offering potential for new therapeutic strategies.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Prostate cancer (PCa) is a leading cause of cancer mortality in men.
  • MicroRNAs (miRNAs) are small noncoding RNAs regulating gene expression posttranscriptionally.
  • Aberrant miRNA expression is observed in PCa, influencing key biological processes.

Purpose of the Study:

  • To review current findings on miRNA research in prostate cancer.
  • To establish a basis for future studies on miRNA's role in PCa.
  • To explore the potential of miRNAs as therapeutic targets in PCa.

Main Methods:

  • Literature review of recent profiling and functional studies on miRNAs in PCa.
  • Analysis of miRNA involvement in PCa pathogenesis, including apoptosis, cell cycle, and stem cell regulation.
  • Examination of the androgen receptor pathway in relation to miRNA expression.

Main Results:

  • miRNAs are significantly dysregulated in prostate cancer tissues.
  • Specific miRNAs are implicated in regulating critical cellular processes relevant to PCa.
  • miRNAs influence the epithelial to mesenchymal transition and prostate cancer stem cells.
  • The androgen receptor pathway is modulated by miRNAs in PCa.

Conclusions:

  • miRNAs play a crucial role in the development and progression of prostate cancer.
  • Aberrantly expressed miRNAs represent promising biomarkers and therapeutic targets for PCa.
  • Further research into miRNA mechanisms can lead to novel PCa treatment strategies.

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...
4.4K
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...
24.9K
MicroRNAs01:22

MicroRNAs

12.1K
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...
5.1K
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.5K
Destabilization of Microtubules01:45

Destabilization of Microtubules

The destabilization of microtubules can occur during different stages of the microtubule lifecycle, such as nucleation or elongation. It can take place at either end of the microtubule or in the microtubule lattices as a whole. The lifespan of individual microtubules within a cell varies according to the cell type and stage of the cell cycle. During interphase, the lifespan of the microtubule is about 30 minutes, while during cell division, it is about 15 minutes. In axonal microtubules of...
3.9K