
UJ scientists discover anticancer potential in common invasive plant
In a discovery that could reshape cancer treatment, researchers at the University of Johannesburg (UJ) have identified promising medical properties in an unlikely source: the common woolly nightshade (Solanum mauritianum), a plant often dismissed as an invasive weed.
Their findings, published in Nature Scientific Reports, reveal that extracts from the plant's ripe fruit exhibit potent activity against aggressive brain cancer cells and antibiotic-resistant bacteria.
ALSO READ: Local learners do Maths and Science in a fun way
Led by Dr Abraham Goodness Ogofure, alongside Dr Tendani Sebola and Professor Ezekiel Green of the Molecular Pathogenic and Molecular Epidemiology Research Group (MPMERG), the study found the ripe fruit contains 15 distinct bioactive compounds—three times more than the unripe fruit.
Among these, alkaloids and terpenoids account for over 50%, both known for their therapeutic potential.
'Through advanced LC-QTOF-MS/MS analysis, we detected – but have not yet isolated – these compounds,' clarifies Ogofure.
'While our findings show strong anticancer activity in the extracts against glioblastoma cells, we do not yet know which specific compounds are responsible for this effect. Encouragingly, the extracts had minimal impact on healthy lung cells, suggesting potential selectivity.'
The antibacterial results were equally significant, with the plant extract demonstrating activity against 11 harmful pathogens, including Staphylococcus aureus and E. coli.
'These findings come at a crucial time, as antibiotic resistance contributes to an estimated 5 million deaths globally each year,' notes Ogofure.
ALSO READ: Community gets empowered with citizen science
Sebola highlighted the broader implications: 'It is fascinating that a plant often removed as a nuisance may offer tools to tackle two of the most pressing global health threats: cancer and antimicrobial resistance.'
Looking ahead, the research team plans to isolate individual compounds from the extract, evaluate them against glioblastoma and other pathogens, and explore the effects of using consortia of these compounds in combination.
'This is just the beginning,' adds Green.
At Caxton, we employ humans to generate daily fresh news, not AI intervention. Happy reading!
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The Citizen
28-05-2025
- The Citizen
UJ scientists discover anticancer potential in common invasive plant
In a discovery that could reshape cancer treatment, researchers at the University of Johannesburg (UJ) have identified promising medical properties in an unlikely source: the common woolly nightshade (Solanum mauritianum), a plant often dismissed as an invasive weed. Their findings, published in Nature Scientific Reports, reveal that extracts from the plant's ripe fruit exhibit potent activity against aggressive brain cancer cells and antibiotic-resistant bacteria. ALSO READ: Local learners do Maths and Science in a fun way Led by Dr Abraham Goodness Ogofure, alongside Dr Tendani Sebola and Professor Ezekiel Green of the Molecular Pathogenic and Molecular Epidemiology Research Group (MPMERG), the study found the ripe fruit contains 15 distinct bioactive compounds—three times more than the unripe fruit. Among these, alkaloids and terpenoids account for over 50%, both known for their therapeutic potential. 'Through advanced LC-QTOF-MS/MS analysis, we detected – but have not yet isolated – these compounds,' clarifies Ogofure. 'While our findings show strong anticancer activity in the extracts against glioblastoma cells, we do not yet know which specific compounds are responsible for this effect. Encouragingly, the extracts had minimal impact on healthy lung cells, suggesting potential selectivity.' The antibacterial results were equally significant, with the plant extract demonstrating activity against 11 harmful pathogens, including Staphylococcus aureus and E. coli. 'These findings come at a crucial time, as antibiotic resistance contributes to an estimated 5 million deaths globally each year,' notes Ogofure. ALSO READ: Community gets empowered with citizen science Sebola highlighted the broader implications: 'It is fascinating that a plant often removed as a nuisance may offer tools to tackle two of the most pressing global health threats: cancer and antimicrobial resistance.' Looking ahead, the research team plans to isolate individual compounds from the extract, evaluate them against glioblastoma and other pathogens, and explore the effects of using consortia of these compounds in combination. 'This is just the beginning,' adds Green. At Caxton, we employ humans to generate daily fresh news, not AI intervention. Happy reading!


The Citizen
25-05-2025
- The Citizen
UJ researchers unlock cancer-fighting potential in common weed
In a discovery that could reshape cancer treatment, researchers at the University of Johannesburg (UJ) have identified promising medical properties in an unlikely source — the common woolly nightshade (Solanum mauritianum). The Witness reports that the plant, often dismissed as an invasive weed, through the doctors' findings published in Nature Scientific Reports, revealed that extracts from the plant's ripe fruit exhibit potent activity against both aggressive brain cancer cells and antibiotic-resistant bacteria. Led by Dr Abraham Goodness Ogofure, alongside Dr Tendani Sebola and Professor Ezekiel Green (leader) of the Molecular Pathogenic and Molecular Epidemiology Research Group, the study found that the ripe fruit contains 15 distinct bioactive compounds, three times more than the unripe fruit. Among these, alkaloids and terpenoids account for over 50%, both known for their therapeutic potential. 'Through advanced LC-QTOF-MS/MS analysis, we detected — but have not yet isolated — these compounds,' said Ogofure. 'While our findings show strong anticancer activity in the extracts against glioblastoma cells, we do not yet know which specific compounds are responsible for this effect. Encouragingly, the extracts had minimal impact on healthy lung cells, suggesting potential selectivity.' The antibacterial results were equally significant, with the plant extract demonstrating activity against 11 harmful pathogens, including Staphylococcus aureus and 'These findings come at a crucial time, as antibiotic resistance is estimated to contribute to five million deaths globally each year,' said Ogofure. Sebola highlighted the broader implications. 'It's fascinating that a plant often removed as a nuisance may offer tools to tackle two of the most pressing global health threats: cancer and antimicrobial resistance,' Sebola said. Looking ahead, the research team plans to isolate individual compounds from the extract, evaluate them against glioblastoma and other pathogens, and explore the effects of using consortia of these compounds in combination. 'This is just the beginning,' said Green. 'This work is about more than just a plant — it's about rethinking how we perceive biodiversity. Sometimes, what we consider weeds may hold the key to transformative medical breakthroughs.' Breaking news at your fingertips… Follow Caxton Network News on Facebook and join our WhatsApp channel. Nuus wat saakmaak. Volg Caxton Netwerk-nuus op Facebook en sluit aan by ons WhatsApp-kanaal. Read original story on At Caxton, we employ humans to generate daily fresh news, not AI intervention. Happy reading!


Daily Maverick
13-05-2025
- Daily Maverick
Fort Hare doctor leads charge to find healthier preservative for chicken
A researcher from the University of Fort Hare received her doctorate for her work exploring whether the leaves of the moringa tree can be used as a healthier preservative for meat, and particularly chicken. Last week, Zimasa Dubeni was awarded a doctorate by the University of Fort Hare for her research that investigated the use of moringa leaves as a healthier preservative for meat and especially chicken. The soft-spoken lab technician said the research had proven that moringa extract, a powerful antioxidant, significantly slows down the growth of bacteria on chicken. She said she hoped to find a healthier way to preserve meat because some preservatives are believed to be carcinogenic. Moringa trees grow abundantly in Limpopo and KwaZulu-Natal. Dubeni said that when she arrived at the University of Fort Hare 20 years ago, she had no idea what to study. A kind administrator took time to talk to her and steered her in the direction of studying for a BSc degree. 'I have always liked biodiversity and how everything depends on one another,' she said. For her postgraduate work, she turned her attention to botany, and for her PhD focused on the benefits of an extract made from the leaves of the moringa tree. 'As moringa is widely considered a source of nutrients and vitamins and is used as an immune booster and a nutritional supplement, for skin rashes and moisturisation, I wanted to investigate if it can be used to preserve meat. 'It would be good to find something that can cut down on the use of synthetic meat preservatives. I was interested in finding out if moringa could slow down bacterial growth, especially in chicken,' she explained. Dubeni said that, if successful, finding a way to incorporate moringa into meat preservation — especially chicken — could provide significant relief to families living in rural areas where there isn't electricity or electricity provision is often unreliable. In another academic paper published in a peer-reviewed journal, she added that the rise of antibiotic-resistant bacteria had increased the urgency to search for new antimicrobials of plant origin. In this paper, she wrote that the moringa leaf extract was effective against bacteria like E. coli, Staphylococcus aureus — both eliminated by moringa extract in six hours — and Klebsiella pneumoniae, eliminated in eight hours under laboratory conditions. She said the extract used was not toxic and was well tolerated by humans, which was one of the reasons she chose it for her work in food preservation. Her research on chicken meat, published in November last year, showed that the moringa extract effectively suppressed and delayed bacterial growth. While there was no salmonella growth in any sample, some treated samples experienced a slight increase in bacterial growth toward the end of the storage period. However, concentrations of 0.5% and 0.25% significantly reduced bacterial growth, even at higher storage temperatures of 25°C. 'We decided on chicken because it is very susceptible to spoiling,' she added. But now her next step is to find a way to stop the moringa extract they are using from staining the chicken green. 'Because really, who wants to eat green meat?' she laughed. Academic career She also has her sights set on an academic career. 'I want to become a lecturer. My journey has been a difficult one. Without the support of my supervisor, I probably would not have been able to finish my degree,' she said. She is now supervising students completing their Honours and Master's degrees. 'Eventually, I want to be a professor in my field and supervise students who can reach these heights too. We need more people to study biodiversity,' she said. She said as a child who attended a township school she didn't have a lot of exposure to careers in science. 'I would tell every young girl who wants to get into science to hold on to that dream. You need a focal point. Without it, you won't know what to work towards or how you will need to work. 'Don't be afraid to ask. You need an end goal in mind. Don't be scared to be judged. Ask about a career you want to pursue. Take every negative challenge as motivation. If you are not hungry enough, you won't work hard enough,' she said. 'Through my struggles, I discovered my strengths. Failure is part of the journey.' Today, she said, her mother tells her that she cannot believe that Dr Dubeni is the same woman as the 18-year-old who walked into Fort Hare not knowing what she wanted to be. 'I want to pay tribute to my mom,' said Dubeni. 'She has been a beacon of home and a pillar of strength for me. I wanted to prove to her that she did a great job raising me.' DM