New emerging roles of microRNAs in breast cancer

Edna Ayerim Mandujano-Tinoco1,2, Alfredo García-Venzor1, Jorge Melendez-Zajgla3

  • 1Epigenetics Laboratory, Instituto Nacional de Medicina Genómica, Periferico Sur 4809, Arenal Tepepan, 14610, Mexico, CDMX, Mexico.

Abstract

Insights

MicroRNAs (miRNAs) are key regulators in breast cancer development. Understanding their role in tumorigenesis can improve breast cancer diagnosis and treatment.

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • MicroRNAs (miRNAs) are non-coding RNAs involved in regulating mRNA targets.
  • Altered miRNA expression is implicated in various breast cancer processes.
  • Breast cancer is a prevalent global health concern for women.

Purpose of the Study:

  • To review the role of miRNAs as master regulators in breast tumorigenesis.
  • To highlight the significance of miRNAs in breast cancer pathology.

Main Methods:

  • An integrative literature review of miRNAs and breast cancer was conducted using PubMed.
  • Focused on research from the past 5 years.
  • Summarized studies on miRNA biogenesis defects, cellular processes, and clinical applications.

Main Results:

  • Defects in miRNA biogenesis correlate with distinct breast cancer characteristics.
  • miRNAs regulate key cellular processes linked to breast cancer hallmarks.
  • miRNAs are modulated by other non-coding RNAs, adding regulatory complexity.

Conclusions:

  • miRNAs show potential as diagnostic and classification tools for breast cancer.
  • Further research into miRNAs can enhance diagnostic and therapeutic strategies for breast cancer.

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...
24.3K
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...
4.0K
Emerging Adulthood01:27

Emerging Adulthood

Jeffrey Arnett's concept of emerging adulthood offers a framework to understand the unique developmental stage between adolescence and full-fledged adulthood, generally from ages 18 to 25. This period is marked by extensive exploration and shifts in identity, relationships, and career choices, a process known in psychology as role experimentation. Emerging adulthood reflects the evolving cultural expectations surrounding adulthood and the dynamic process of personal transformation during...
715
Introduction Cardiac Emergencies01:30

Introduction Cardiac Emergencies

Cardiac emergencies are critical situations involving the heart that require immediate medical intervention to prevent severe complications or death. These emergencies often arise from underlying heart conditions that impair the heart's ability to function correctly.Types of Cardiac EmergenciesThe most common types of cardiac emergencies include Acute Coronary Syndrome (ACS), myocardial infarction (MI), cardiac arrest, and heart failure.Acute Coronary Syndrome (ACS)Acute Coronary Syndrome (ACS)...
376
Applications of GIS: Disaster Management and Emergency Response01:29

Applications of GIS: Disaster Management and Emergency Response

Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
535
Role of Septins01:02

Role of Septins

Septins are the recently discovered fourth major protein component of the cytoskeleton, along with microfilaments, microtubules, and intermediate filaments. These proteins can associate with other cytoskeletal filaments and carry out varied roles or can be free-floating in the cytoplasm.
Cellular Functions of Septins
Recent studies have revealed the multifaceted roles of septins in various cellular processes such as cytokinesis, ciliogenesis, and neurogenesis. Septins act as scaffolds and...
2.2K