Genome :: Genome of the parasite behind trichomoniasis

A team of international scientists has decoded the genome of the parasite behind trichomoniasis, a sexually transmitted infection (STI) that each year affects about 170 million people worldwide.

Trichomonas vaginalis colonises the urogenital tract and causes the infection also known as “trick”, the most common non-viral STI.

University of Queensland PhD scholar Rebecca Dunne was one of a team of 65 scientists that worked on the project to sequence the genome, which could offer clues to better treatments for both men and women. Ms Dunne said the results would allow researchers to hone in on genes and gene families of interest, particularly those involved in drug resistance.

“The completion of the genome sequence by The Institute for Genomic Research (TIGR) and subsequent annotation of the genome database has opened many avenues of research by providing a searchable data set,” Ms Dunne said.

“Drug resistance in many human pathogens is increasing. T. vaginalis is among these, with no alternative drugs approved to treat resistant infections.

“This is particularly an issue in developing countries, where the number of infected individuals is high and the access to public health services is low.

“Now that researchers have access to a complete genome dataset the search for alternative drug targets can really take-off.”

Amazingly, the pesky parasite was found to have an exceptionally large collection of DNA, with the possibility of having more genes than humans.

But Ms Dunne said while the sequencing of the genome project has largely elevated awareness of T. vaginalis among researchers, public awareness remains low, especially in developing countries where it has the most impact.


Leave a Comment