Human mtDNA-Encoded Long ncRNAs: Knotty Molecules and Complex Functions.

Area of Science:

• Molecular Biology
• Genomics
• Biochemistry

Background:

• Historically, research focused on protein-coding RNA, overlooking non-coding RNAs (ncRNAs).
• Advancements in bioinformatics and next-generation sequencing (NGS) since 2002 have revealed the significance of ncRNAs.
• Interest in ncRNAs has expanded globally, including non-human species, due to genomic data.

Purpose of the Study:

• To review the current understanding of non-coding RNAs (ncRNAs).
• To focus specifically on human mitochondrial DNA-encoded long non-coding RNAs (mt-lncRNAs).
• To explore the diverse functions and localizations of mt-lncRNAs and their connection to cellular processes.

Main Methods:

• Literature review of studies on ncRNAs and mt-lncRNAs.
• Analysis of data from next-generation sequencing (NGS) platforms.
• Bioinformatic approaches to identify and characterize mt-lncRNAs.

Main Results:

• ncRNAs play essential regulatory roles in cellular physiology and pathology.
• mt-lncRNAs are transcribed from the mitochondrial genome.
• mt-lncRNAs exhibit diverse localizations and functions linked to mitochondrial metabolism.

Conclusions:

• ncRNAs represent a vast and critical component of the genome.
• mt-lncRNAs are integral to mitochondrial function and cellular health.
• Further research into mt-lncRNAs can illuminate cellular pathology and potential therapeutic targets.