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04 December 2023 | Story LUNGA LUTHULI | Photo SUPPLIED
Milton Mogotsi
Charting unexplored territories: Milton Mogotsi, UFS PhD student, clinches victory in National 3MT Competition, unravelling infant enteric virome complexities, poised to revolutionise virology.

Milton Mogotsi, a PhD student at the University of the Free State (UFS), has secured a remarkable victory in the esteemed National 3 Minute Thesis competition (3MT), rising above formidable competition nationwide. This achievement follows Mogotsi’s earlier successes at faculty and institutional levels, where his presentations on the enteric virome of infants in the Free State stood out for their brilliance and significance.

The annual competition serves as a platform for postgraduate students to enhance their academic, presentation, and research communication skills by succinctly explaining their research to an intelligent but non-specialist audience within a concise 3-minute timeframe.

Reflecting on his initial reaction to the news, Mogotsi expressed a mix of shock and excitement. “I was genuinely shocked and excited when declared the winner,” he shared. This victory marked a significant milestone for Mogotsi, as a first-time participant, showcasing the excellence of both the UFS and the Faculty of Health Sciences.

Exploring uncharted territories

Mogotsi’s groundbreaking research delves into the unexplored domain of the enteric virome in infants, a subject inspired by his earlier master’s study in microbiology. “I was first introduced to this research during my master’s degree, and compelling findings motivated me to pursue further studies,” explained Mogotsi. Guided by his mentor, Prof Martin Nyaga, Mogotsi's doctoral journey unfolded into a profound exploration of the complexities of viruses colonising infants' guts and their implications on infant health.

Sharing key findings, Mogotsi highlighted that, despite detecting several disease-causing viruses in infants’ guts, none exhibited clinical symptoms. This emphasises the role of immunity and protective measures like breastfeeding. He also identified plant viruses, potentially transmitted through the environment or food sources, raising intriguing questions about infants’ exposure.

His pioneering use of viral metagenomics in unravelling the enteric virome’s complexity underscored its potential in understanding human health and disease. “Viral metagenomics has become a fundamental tool, shedding light on the composition of the infant’s enteric virome,” explained Mogotsi. 

Navigating challenges

Despite challenges, including disruptions due to COVID-19 and participant withdrawals, Mogotsi persevered, underscoring the importance of a longitudinal approach in comprehending the infant virome’s development over time. His success in the competition not only boosted his confidence but also expanded his networks, providing invaluable opportunities to present his findings internationally.

Mogotsi's advice to aspiring researchers mirrors his own journey: clarity of purpose, resilience in the face of challenges, fostering mentor relationships, and making the most of available resources. His groundbreaking work is poised to influence policy, guide vaccine strategies, and reshape our understanding of infant health.

As Mogotsi approaches the completion of his PhD, the future holds promising horizons for this trailblazing researcher, poised to leave an indelible mark on the world of virology and infant health.

News Archive

UFS study on cell development in top international science journal
2008-09-16

A study from the University of the Free State (UFS) on how the change in the packaging of DNA with cell development influenced the expression of genes, will be published in this week’s early edition of the prestigious international, peer-reviewed science journal, the Proceeding of the National Academy of Sciences of the USA (PNAS).

The PNAS journal has an impact factor of 10, which means that studies published in the journal are, on average, referred to by ten other scientific studies in a two year period. The South African Journal of Science, by comparison, has an impact factor of 0.7.

The UFS study, funded by the Wellcome Trust and the National Research Foundation (NRF), looked at how the change in the packaging of DNA with cell development influenced the expression of genes. It is very relevant to research on stem cells, an area of medicine that studies the possible use of undifferentiated cells to replace damaged tissue.

Prof. Hugh Patterton, of the Department of Microbial, Biochemical and Food Biotechnology at the UFS, who led the study, said: "We are extremely proud of this study. It was conceived in South Africa, it was performed in South Africa, the data were analysed in South Africa, and it was published from South Africa."

When a gene is expressed, the information encoded in the gene is used to manufacture a specific protein. In eukaryotes, which include humans, there is approximately 1m of DNA, containing the genes, in every cell. This length of DNA has to fit into a cell nucleus with a diameter of only about 10 micrometer. In order to fit the DNA into such a small volume, eukaryotic cells wrap their DNA onto successive protein balls, termed nucleosomes. Strings of nucleosomes, resembling a bead of pearls, is folded into a helix to form a chromatin fiber. The study from the UFS investigated how the binding of a specific protein, termed a linker histone, that binds to the length of DNA between nucleosomes, influenced the formation of the chromatin fiber and also the activity of genes.

"We found that the linker histone bound to chromatin in yeast, which we use as a model eukaryote, under conditions where virtually all the genes in the organism were inactive. It was widely believed that the binding of the linker histone caused the inactivation of genes. We studied the relationship between the amount of linker histone bound in the vicinity of each gene and the expression of that gene for all the genes in yeast, using genomic techniques. We made the surprising discovery that even through the linker histone preferentially bound to genes under conditions where the genes were shut off, this inactivation of genes was not caused by the binding of the linker histone and folding of the chromatin,” said Prof. Patterton.

He said: “Instead our data strongly suggested that the observed anti-correlation was due to the movement of enzymes along the DNA molecule, involved in processing the information in genes for the eventual manufacture of proteins. This movement of enzymes displaced the linker histones from the DNA. This finding now requires a rethink on aspects of how packaging of DNA influences gene activity."

Prof. Patterton said that his research group, using the Facility for Genomics and Proteomics as well as the Bioinformatics Node at the UFS, was currently busy with follow-up studies to understand how other proteins in nucleosomes affected the activities of genes, as well as with projects to understand how chemicals found in red wine and in green tea extended lifespan. "We are certainly having a marvelous time trying to understand the fundamental mechanisms of life, and the UFS is an exciting place to be if one was interested in studying life at the level of molecules," he said.


Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za  
18 September 2008
 

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