12th January 2024
Paper accepted at mGen
Our paper investigating compensatory mutations in M. tuberculosis and their influence on in vitro fitness has just been accepted at Microbial Genomics, a journal published by the Microbiology Society.
We are really happy that this work has found a new home and hope to see it out and published any time soon.
21st June 2023
Our work on compensatory mutations (CMs) in M. tuberculosis has just been uploaded as a preprint. The paper describes the large-scale identification of CMs based on a collection of > 70,000 clinical TB samples and identifies CM clustering regions on the RNA polymerase.
We also attempt to dissect the in vitro growth densities associated with the presence of resistance mutations and CMs. This can be used as a proxy for the previously described fitness cost and fitness salvage associated with resistance mutations and CMs, respectively. We found a strong association of CM presence with higher than wild type in vitro growth densities for the more virulent Lineages 2 and 3, but the underlying cause is not straightforward to identify. Further work will be needed to disentangle the influence of lineage- and clade-association on the observed growth levels.
17th May 2023
Talk at OxBacNet Symposium
The OxBacNet meetings brings together bacteriologists from all of Oxfords research institutions. Every term, some senior and junior scientists have the possibility to present their work to members of the network at the OxBacNet symposium. I was happy to present the final stages of my work on compensatory mutations in M. tuberculosis at this Trinity term edition.
This work is now almost concluded and will soon be published as a preprint, with all data and conducted analysis available online on my GitHub page.
22nd November 2022
Poster prize at INEOS Multidisciplinary Approaches to AMR conference
I was able to showcase my work on compensatory mutations in the RNA polymerase in M. tuberculosis at this years Multidisciplinary approaches to AMR conference in Oxford. My preliminary results indicate an interesting association between the presence of compensatory mutations in TB samples and unusually high sample growth in vitro. These findings could very well explain a part of the observed increased transmissibility of Lineage 2 M. tuberculosis in high burden countries and should be monitored further.
As this was my very first conference poster, I was very happy to be awarded a poster price for my contribution.