Non-Coding RNAs Set a New Phenotypic Frontier in Prostate Cancer Metastasis and Resistance

Joshua Altschuler1, Jennifer A Stockert1, Natasha Kyprianou1,2

  • 1Department of Urology, The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.

Insights

Prostate cancer (PCa) mortality is high due to treatment resistance. Understanding phenotypic transitions and non-coding RNAs (ncRNAs) like microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) is key to overcoming resistance and improving outcomes.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Prostate cancer (PCa) mortality is a significant public health issue, particularly in advanced stages where therapeutic resistance is common.
  • The androgen receptor (AR) is central to PCa growth and the target of current therapies, but resistance invariably develops.
  • Therapeutic resistance involves complex biological mechanisms, including genetic, signaling, and phenotypic alterations, influenced by the tumor microenvironment.

Purpose of the Study:

  • To review current knowledge on phenotypic transitions (EMT/MET) and non-coding RNAs (ncRNAs) in PCa therapeutic resistance.
  • To explore the role of miRNAs and lncRNAs in epigenetic changes driving PCa progression.
  • To discuss the predictive value of these molecular determinants in advanced PCa.

Main Methods:

  • Literature review of evidence-based knowledge on PCa therapeutic resistance.
  • Analysis of the role of epithelial-to-mesenchymal transition (EMT) and mesenchymal-to-epithelial transition (MET) in treatment response.
  • Examination of microRNA (miRNA) and long non-coding RNA (lncRNA) mechanisms in PCa.

Main Results:

  • Phenotypic transitions (EMT/MET) are critical in navigating PCa therapeutic response and resistance.
  • Non-coding RNAs, including miRNAs and lncRNAs, are implicated in epigenetic alterations contributing to resistance.
  • These molecular factors offer potential as biomarkers for predicting PCa progression and resistance.

Conclusions:

  • Understanding phenotypic plasticity and ncRNAs is crucial for developing strategies to overcome therapeutic resistance in PCa.
  • miRNAs and lncRNAs represent promising targets and predictive biomarkers for advanced prostate cancer.
  • Integrated analysis of these factors may improve patient outcomes and survival in metastatic castration-resistant prostate cancer (mCRPC).

Related Concept Videos

lncRNA - Long Non-coding RNAs02:39

lncRNA - Long Non-coding RNAs

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...
9.4K
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...
4.1K
The Ras Gene02:38

The Ras Gene

The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a...
6.7K
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...
4.9K
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...
3.4K
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...
23.1K