MicroRNAs and micromanaging the skeleton in disease, development and evolution

Area of Science:

• Genetics and Molecular Biology
• Developmental Biology
• Evolutionary Biology

Background:

• MicroRNAs (miRNAs) are crucial regulators of post-transcriptional gene expression.
• miRNAs play significant roles in human development and are implicated in various diseases.
• Understanding miRNA involvement in skeletal development is essential for addressing congenital malformations and age-related bone disorders.

Purpose of the Study:

• To review recent advancements in microRNA research concerning skeletal malformations.
• To explore the role of microRNAs in the evolution of skeletal morphologies, particularly craniofacial structures.
• To propose a hypothesis linking microRNA variations to craniofacial evolution, human diseases, and age-related osteopenia.

Main Methods:

• Literature review of recent studies on microRNAs and skeletal biology.
• Analysis of the proposed hypothesis regarding evolutionary and disease-related roles of microRNAs.
• Synthesis of current knowledge on microRNA function in gene regulation and development.

Main Results:

• MicroRNAs are key regulators of gene expression impacting skeletal development.
• Evidence suggests microRNAs are involved in skeletal malformations like cleft palate.
• Evolutionary changes in microRNA expression or binding sites may drive craniofacial diversity.

Conclusions:

• MicroRNA variations are proposed as a significant factor in the evolution of craniofacial structures.
• Alterations in microRNAs can contribute to the development of human craniofacial diseases.
• Changes in microRNA patterns may underlie age-related physiological changes such as osteopenia.