Extracellular RNA (exRNA)

A recent study published in the journal Clean Water has revealed that extracellular RNA (exRNA) from bacteria can persist even in disinfected drinking water, offering new insights into microbial survival and water treatment strategies.

Researchers found that analyzing exRNA—genetic material released by bacteria just before they are damaged or killed—can help scientists understand the survival mechanisms adopted by microbes under stress. This discovery could pave the way for the development of more effective disinfectants and improved water purification systems.

About Extracellular RNA

Extracellular RNA refers to RNA molecules that exist outside cells, commonly found in body fluids such as blood, saliva, urine, and cerebrospinal fluid. These molecules are not merely byproducts; scientists now recognize exRNA as part of a complex communication system between cells.

Through this system, cells can release RNA to send instructions to other cells, influencing their behavior and gene expression. This mechanism plays a vital role in processes such as immune response, tissue repair, and development.

However, experts caution that exRNA can also have harmful roles. For instance, cancer cells can release exRNA to support tumour growth and progression, highlighting its dual nature.

Due to its presence in easily accessible body fluids, exRNA is emerging as a promising tool for minimally invasive diagnostics, especially in oncology, where it can aid in early detection and prognosis of diseases.

Source: TH