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02 January 2024 | Story Leonie Bolleurs
UFS scientists contribute to the battle against cancer
From top left, moving clockwise: Dr Nerina van der Merwe, Dr Osayande Evbuomwan, Prof Alicia Sherriff, Profs Andreas Roodt and Alice Brink.

Cancer stands as a prominent contributor to deaths worldwide, with a big impact on families and communities. Prostate cancer is one of the leading causes of mortality in the world. The recent diagnoses of cervical cancer are 10 702 annually, with 5 870 patients passing away. Female breast cancer surpassed lung cancer as the most commonly diagnosed cancer in 2020 (American Cancer Society), representing 11,7% of all cancer cases, making it the fifth leading cause of cancer mortality worldwide. Researchers at the university are doing their part in the fight against cancer.

Treating prostate cancer

In July 2021, Dr Osayande Evbuomwan, Senior Lecturer and Medical Specialist in the Department of Nuclear Medicine, along with a team of university doctors, initiated patient treatment using radioligand therapy (RLT). This targeted nuclear medicine therapy delivers high radiation levels precisely to cancer cells, minimising damage to normal organs and tissue, a benefit not typically provided by conventional therapies.

It was the first time that Lutetium 177 PSMA – a type of PRRT – has been used to treat patients with metastatic castrateresistant prostate cancer (MCRPC) in the Free State, providing hope when standard treatments and conventional therapy are not an option. This treatment generally enhances quality of life, slows disease progression, and extends overall survival, with minimal side effects.

All three patients treated with Lu 177 PSMA so far have completed at least four therapy cycles and tolerated it well. The first two patients, while initially responding well, sadly passed away due to unrelated causes. The third case stands out as the most successful, responding excellently to seven treatment cycle and remaining in good health.

Dr Evbuomwan recently also obtained a license for a more effective therapy, AC 225 PSMA, as an alternative to Lu 177 PSMA.

Precise cervical cancer therapy

Medical personnel at the Universitas Academic Hospital also became the first in Southern Africa to use interstitial brachytherapy as a method for treating cervical cancer. Prof Alicia Sherriff, Head of the Department of Oncology, explains that brachytherapy – a form of internal radiation therapy – places the radiation source near or inside the cancer. “Precise delivery of curative doses to the cancer protects surrounding organs such as the bladder, rectum, and small bowel,” she explains.

Three to five weekly brachytherapy sessions under conscious sedation usually begins after two weeks of daily external beam radiation. On brachytherapy days, external beam radiation is not administered. “The intracavitary brachytherapy applicators are placed within the cervix and uterus and deliver high doses locally, but for surrounding tissue infiltration, additional needles are inserted via the Venezia applicator, delivering high-dose radiation while sparing organs,” says Prof Sherriff.

Their work aligns with the broader goals of the university and its commitment to advancing health care in the region by ensuring the continued growth of their skills and technology, while applying these skills to improve the possibility of disease control, cure or palliation with quality of life.

Familial breast and ovarian cancer testing

Dr Nerina van der Merwe, a principal medical scientist in the Division of Human Genetics, and colleagues are engaged in breast cancer research. They are involved in translational research using new technologies that, once validated as a first-tier diagnostic test, could revolutionise genetic testing for familial breast and ovarian cancer in South Africa when used in conjunction with genetic counselling. This parallel application is ideally suited for primary hospitals and rural clinics, as it will dramatically increase accessibility and uptake of genetic testing in rural areas.

By performing first-tier genetic testing at a community clinic, patients no longer have to be transported to tertiary hospitals for testing, and more patients and related family members who are unaware of a familial predisposition will be reached. “By warning unaffected related individuals about their potential increased risk, we can play a part in the earlier detection or diagnosis of patients, improving their cancer survival rate,” states Dr Van der Merwe.

Patenting cancer research

Prof Andreas Roodt, a retired Distinguished Professor in the Department of Chemistry, and colleagues – particularly Prof Alice Brink and co-worker Prof Roger Alberto from the University of Zurich – have published widely on the chemistry of radiopharmaceutical models. Since the 2000s, the world has introduced the concept of ‘theranostics,’ which involves the use of a single compound for both cancer detection and therapy. “These compounds contain a radioisotope that provides internal radiation for cancer detection (diagnostic) and a second part for treatment,” explains Prof Roodt.

Their research enables the high-yield preparation of compounds containing multiple isotopes often present in very low concentrations. “This allows combining diagnostic isotopes such as technetium-99m (used in >80% of diagnostic patient studies worldwide) with therapeutic radioisotopes, such as rhenium-186 (used for bone cancer therapy), with ease. Many therapeutic radioisotopes do not have good diagnostic radiation; thus, by combining the two types of radioisotopes in one medicine, the oncologist can now clearly see where the therapeutic part is going and apply more effective treatment,” he says.

News Archive

UV vestig hom afgelope eeu as leier op verskeie terreine
2004-05-11

Michelle O'Connor - Volksblad - 11 Mei 2004

Ondank terugslae nou 'n 'gesonde volwassene'

HOEWEL die Universiteit van die Vrystaat (UV) vanjaar sy eeufees vier en met 23 000 studente die grootste universiteit in die sentrale deel van die land is, was dié instelling se geboorte glad nie maklik nie. MICHELÉ O'CONNOR het met prof. Frederick Fourie, rektor, oor die nederige begin van dié instelling gesels.

DIE behoefte aan 'n eie universiteit in die Vrystaat het reeds in 1855, kort ná die stigting van Grey-kollege, kop uitgesteek.

Grey se manne het hulleself teen 1890 begin voorberei om die intermediêre B.A.-eksamens af te lê. Dié eksamen het hulle toegang gegee tot die tweede jaar van 'n B.A.-graad aan die destydse University of the Cape Good Hope, nou die Universiteit van Kaapstad.

"Presidente F.W. Reitz en M.T. Steyn het destyds albei die stigting van 'n universiteit hier bepleit. Die grootste rede was sodat die seuns van die Vrystaat nie weggestuur word nie.

"Dié twee se droom is op 28 Januarie 1904 bewaarheid toe ses studente hulle onder dr. Johannes Bril, as hoof/rektor van Grey-kollege, vir die graad B.A. ingeskryf het. Dié graad is aanvanklik deur die Kaapse universiteit toegeken.

"Net die klassieke tale soos Latyns en Grieks, die moderne tale, Nederlands, Duits en Engels, filosofie, geskiedenis, wiskunde, fisika, chemie, plant- en dierkunde is aanvanklik aangebied.

"Die UV se geboue het gegroei van 'n klein tweevertrek-geboutjie wat nou naby Huis Abraham Fischer staan, en verblyf in die Grey-kollege se seunskoshuis," sê Fourie.

Volgens hom is die universiteit se eerste raad en senaat tussen 1904 en 1920 saamgestel. Die eerste dosente is aangestel en die eerste geboue opgerig. "Dié tyd was egter baie moeilik.

"Die instelling het teen 1920 net 100 studente gehad en was geldelik in die knyp. Daar was geen vaste rektor nie en geen vooruitgang nie. Vrystaatse kinders is steeds na ander universiteite gestuur.

"Ds. J.D. Kestell, rektor van 1920 tot 1927, het egter dié instelling finaal gevestig.

"Hy het self studente van oor die hele Vrystaat gewerf en geld by onder meer kerke en banke ingesamel. Kestell het selfs Engelse ouers oortuig om hul kinders na die Greyuniversiteitskollege (GUK) te stuur en teen 1927 het dié instelling met 400 studente gespog.

"In die tydperk tussen 1927 en 1950 het die GUK weer verskeie terugslae beleef.

"In dié tyd was dit onder meer die Groot Depressie en die Tweede Wêreldoorlog. Die armblanke-vraagstuk het regstreeks op studente en dosente ingewerk en die politieke onderstrominge van dié tyd het die instelling ontwrig.

"Die GUK het egter oorleef en die Universiteitskollege van die Oranje-Vrystaat (UKOVS) is in 1935 gebore," sê Fourie.

Hy sê in dié tyd is verskeie fakulteite gevestig en teen 1950 het die UKOVS met 1 000 studente gespog.

Teen 1950 het dit 'n onafhanklike universiteit geword en die naam is verander na die Universiteit van die OranjeVrystaat (UOVS).

Dié tydperk is gekenmerk deur Afrikaner- en blanke selfvertroue en heerskappy. Studentegetalle het tot 7 000 in 1975 gegroei en heelwat vooruitgang het in dié tyd plaasgevind.

"Tussen 1976 en 1989 sukkel dieuniversiteit weer met onder meer ekonomiese krisisse, die land se politieke onstabiliteit en word die UOVS geï soleer.

"Een ligpunt in dié tyd is die toelating van die eerste swart studente, die nuwe Sasol-biblioteek en die fakulteit teologie wat die lig sien.

"Tussen 1990 en vanjaar het die UOVS verskeie op- en afdraandes beleef. Die universiteit doen nie net die eerste stappe van transformasie nie, maar begin ook aan 'n beleid van multikulturaliteit werk.

"Die UOVS se naam verander in 1996 na die Universiteit van die Vrystaat/University of the Free State en in 2001 word die Sotho-vertaling bygevoeg.

"Geldelike druk en probleme neem drasties toe en personeel word gerasionaliseer.

"Teen 2000 begin die UV met 'n draaistrategie en studentegetalle neem tot meer as 23 000 toe," sê Fourie.

Hy sê die UV het die afgelope eeu nie net verskeie terugslae oorleef nie, maar homself ook op verskeie gebiede as 'n leier gevestig.

Die universiteit behaal sy eie geldelike mikpunte, neem 'n nuwe taalbeleid van veeltaligheid aan en herbelê in personeel.

Die instelling inkorporeer die kampusse van die Vista- en Qwaqwa-universiteit en groei internasionaal.

Die UV vestig ook fondamente van 'n institusionele kultuur van verdraagsaamheid, geregtigheid en diversiteit.

"Die baba het in die afgelope eeu 'n gesonde volwassene geword."

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