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01 July 2022 | Story André Damons | Photo André Damons
Prof Motlalepula Matsabisa
Prof Motlalepula Matsabisa, from the Department of Pharmacology at the University of the Free State, explains to the delegation how some of the machinery and equipment in his laboratory work.

The World Health Organisation’s (WHO Afro) Regional Expert Advisory Committee on Traditional Medicines for COVID-19 Response (REACT), Africa Centres for Disease Control and Prevention (Africa CDC), the European and Developing Countries Clinical Trials Partnership (EDCTP), the African Union Commission (AU) joint mission to South Africa have found that the University of the Free State (UFS) has the appropriate laboratories, specialised facilities and capacity to conduct multidisciplinary research, train human resources as well as the ability to attract funding for research on traditional medicine. 

The mission concluded its visit to the country on Friday 24 June by presenting a preliminary report to the departments of Health and Higher Education and Training (DHET). Besides visiting the two national departments and the UFS, the delegation also visited the South African Health Products Regulatory Authority (SAHPRA), WHO Country Office, Pharma-Ethics, Manufacturing Industry and the Council for Scientific and Industrial Research (CSIR). They also visited the three clinical trials sites in Vereeniging, Kimberley and Gqeberha (Port Elizabeth). 

Congratulations to UFS and Department of Clinical Pharmacology for PHELA study
The delegation visited the UFS (on Friday 17 June) as it is one of two institutions on the continent conducting multicentered clinical trials on traditional African medicine – PHELA – to be tested in a Phase II clinical trial on COVID-19 patients.

Prof Ossy MJ Kasilo, regional advisor for traditional medicine at the WHO regional office for Africa, who led the mission, congratulated the UFS and the Department of Clinical Pharmacology for putting together the study for PHELA.
According to her, South Africa is one of just two countries they visited conducting multicentered clinical trials on traditional African medicine for COVID-19. “This study is very important to us and on behalf of the WHO Africa, AFRICA CDC, EDCTP and the AU Commission, we would like to congratulate you on this study,” said Prof Kasilo. 
Presenting the preliminary report to the Departments of Health and DHET, Prof Kasilo said they found that the UFS has the appropriate laboratories, research equipment, specialised facilities and capacity to conduct multidisciplinary research, for human capital development, as well as the ability to attract funding. 

“The university also has strong institutional and government support, the existence of an institutional ethics committee and a strong relationship with the industry. There is also strong evidence of collaboration between departments at the UFS; these include Pharmacology, Chemistry, Microbiology and Virology as well as the external research collaboration that includes the Council for Scientific and Industrial Research (CSIR), University of Pretoria, Agricultural research council (UP) and others. 

“The UFS has strong involvement and relationships with communities and the Krwakrwa outreach in the Eastern Cape is an example of university-community partnership. The university together with the Krwakrwa community also has the facility for processing raw materials for herbal medicines, land for pilot medicinal plant cultivation and for later expansion. There are greenhouses for plant nurseries and this project is close to the source of raw materials for traditional medicines being scientifically researched and developed. The community has been trained in a number of skills relevant to them, such as good agricultural cultivation practice (GACP) project management, plant raw material quality processing and capacity building for the Project Team in relevant soft skills relating to management of processing raw materials and facilities,” said Prof Kasilo. 

The objectives of the mission
During their visit to the UFS, Prof Kasilo said with the COVID-19 pandemic a number of African countries had proposed some traditional medicine as therapeutics for COVID-19 treatment. However, these were not backed up by scientific evidence for the safety, efficacy and quality. Therefore the WHO, in collaboration with Africa CDC, African Union Commission and the EDCTP put together protocols for conducting clinical trials on traditional medicine-based therapeutics. 

“The objective of the mission is to review progress the country is making in developing traditional medicine-based therapeutics, in this particular case, PHELA. To identify areas for strengthening country capacity with the view to developing a plan of action with WHO technical support and to monitor the level of implementation of the WHO recommendations regarding the conduct of clinical trials, specifically good clinical practice,” said Prof Kasilo. 

Overview of the UFS 
Prof Motlalepula Matsabisa , who is also the chairperson of REACT, said the mission is here to ascertain the best practices, to identify the possible skills, research facilities and to identify the strength and weaknesses as well as the experts in the country who can be tapped into to give technical support on the continent. “We are not only talking to people, but we are also looking at facilities that could be utilised in the region.”
He also gave the delegates an overview on his PHELA study.  

In her short address, Prof Corli Witthuhn, Vice-Rector: Research and Internationalisation, gave a brief overview on the UFS. According to her, 3% of the university’s 41 000 students are international students – something the UFS would like to increase. In terms of internationalisation, Prof Witthuhn concluded, the UFS has 70 international active partnerships and is proud to have published almost 6 000 research publications in the past five-year period in collaboration with its international researchers and 2 500 international universities. 

According to her, the vision of the university is to be research-led, student-centered and regionally engaged so it can have an impact regionally. “We always talk about playing a national game but with an international audience.” Prof Witthuhn said.

Representatives also toured some of the university’s world-class laboratories in the Department of Pharmacology, Department of Microbiology and Biochemistry, FARMOVS as well as the Prof Felicity Burt’s biosafety Level (BSL) 3 virology laboratory where they got a glimpse into the work being done in these facilities. They also interacted with students and got to see top-of-the-range research equipment. 

 

News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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