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12 December 2024 | Story André Damons | Photo André Damons
Dr Innocensia Mangoato
Dr Innocensia Mangoato graduated on Tuesday (10 December 2024) with degree Doctor of Philosophy with specialisation in pharmacology at the Faculty of Health Sciences’ December graduation ceremony. Here she is with her supervisor and mentor Prof Motlalepula Matsabisa, Director of the University of the Free State (UFS) Department of Pharmacology.

A lecturer and researcher from the University of the Free State (UFS) Department of Pharmacology hopes her research into the use of cannabis in reversing anticancer drug resistance is a step forward into treating various cancers especially in Southern Africa.

Dr Innocensia Mangoato graduated on Tuesday (10 December 2024) with the degree Doctor of Philosophy with specialisation in pharmacology at the Faculty of Health Sciences’ December graduation ceremony. She started her career as a research scientist in the area of African traditional medicines in 2018 and her research received both national and international recognition.

“It’s an amazing (feeling to graduate today). My PhD journey was smooth and beautiful and with mentorship of Prof (Motlalepula) Matsabisa, who groomed me well, I did not shed a tear,” said Dr Mangoato. Dr Gudrun S Ulrich-Merzenich from the University of Bonn in Germany, was her co-supervisor with Prof Matsabisa.

According to the graduation programme, Dr Mangoato, Lecturer and Researcher in the UFS Department of Pharmacology, with her thesis titled Investigating the anticancer and possible resistant reversal effects of cannabis sativa l. extracts in cervical cancer cell lines and modulation of ABC transporters comprehensively explored the therapeutic potential of Cannabis sativa L. in overcoming drug resistance in cervical cancer using in vitro and network pharmacology approaches.

A step forward for treating various cancers

The research looked at the chemical fingerprints and pharmacological targets of C. sativa L. extracts, highlighting its antiproliferative properties against normal non-cancerous cells, cervical cancer cells and the cisplatin-resistant cervical cancer cells. Through PCR analysis, distinct gene expression profiles were identified, revealing the potential effects of combination treatments to counteract cisplatin resistance by downregulating genes associated with drug transporters and crucial signalling pathways. This work provides valuable insights into innovative therapeutic strategies for improving cervical cancer treatment, highlighting new avenues for overcoming resistance and enhancing treatment efficacy though the possible use of plant extracts.

“I hope my research takes a step forward in treating various cancers – especially gynaecology cancers in the Southern Hemisphere in Africa. Hopefully the research can later transcend into clinical trials and hopefully influence more policymakers. We also hope to further develop cannabis to be used as an adjuvant therapy for those drugs that are failing to treat cancer,” says Dr Mangoato, who was the recipient of the Women in Science Master’s Student in 2018.

Her graduation was also a proud moment for Prof Matsabisa, an expert in traditional African medicine, who was like a father to her during her studies. “Prof identified me from my honours degree and walked this journey with me. He has been a great mentor, a father and an amazing supervisor.”

Dr Mangoato says she will for now focus on research only and helping and monitoring upcoming researchers, especially female researchers as there is a scarcity of them her field. 

News Archive

Prof Tredoux turns theories regarding the formation of metals on its head
2013-09-17

 

Prof Marian Tredoux
17 September 2013

The latest research conducted by Prof Marian Tredoux of the Department of Geology, in collaboration with her research assistant Bianca Kennedy and their colleagues in Germany, placed established theories regarding how minerals of the platinum-group of elements are formed, under close scrutiny.

The article on this research of which Prof Tredoux is a co-author – ‘Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts’ – was published in Nature Communications on 6 September 2013. It is an online journal for research of the highest quality in the fields of biological, physical and chemical sciences.

This study found that atoms of platinum and arsenic create nanoclusters, long before the mineral sperrylite can crystallise. Thus, the platinum does not occur as a primary sulphur compound. The research was conducted at the Steinmann Institute of the University of Bonn, Germany, as well as here in Bloemfontein.

Monetary support from Inkaba yeAfrica – a German-South African multidisciplinary and intercultural Earth Science collaborative of the National Research Foundation (NRF) – made this research possible. Studies are now also being conducted on other metals in the precious metal group, specifically palladium, rhodium and ruthenium.

The discovery of the nanoclusters and the combination with arsenic can have far-reaching consequences for the platinum mine industry, if it can be utilised to recover a greater amount of platinum ore and therefore less wastage ending up in mine dumps. This will signify optimal mining of a scarce and valuable metal, one of South Africa’s most important export products.

For Prof Tredoux, the research results also prove thoughts she already had some twenty years ago around the forming of platinum minerals. “Researchers laughed in my face, but the evidence had to wait for the development of technology to prove it.” Young researchers were very excited at recent congresses about the findings, since the new models can bring new insights.

“Chemistry researchers have been talking about platinum element clusters in watery environments for quite a while, but it was thought that these would not appear in magmas (molten rock) due to the high temperatures (>1 000 degrees celsius).”

Prof Tredoux has already delivered lectures at congresses in Scotland, Hungary, Sweden and Italy on this research.

Read the article at: http://www.nature.com/ncomms/2013/130906/ncomms3405/full/ncomms3405.html

 

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