News
New research to study breast cancer in ethnic minority groups
Women from Black Caribbean and Black African backgrounds are significantly more likely to develop a more advanced form of the disease
A new UK study will look at the variation in breast cancer across different ethnic minority groups, as research shows Black women have poorer overall survival than white women.
The study, funded by Cancer Research UK and led by Dr Toral Gathani – consultant cancer surgeon at the University of Oxford – will investigate why women from ethnic minority backgrounds are less likely to get breast cancer, but why they may experience more aggressive forms of the disease when they do.
Breast cancer is the most common cancer in the UK, but analysis of national data has shown that women from Black Caribbean and Black African backgrounds are significantly more likely to have more advanced disease at diagnosis than white British women.
The new three-year project will use existing data from large national studies and the National Cancer Registry Service in England to look at breast cancer incidence rates and how breast cancer risk factors such as weight, alcohol intake and reproductive factors, may differ in different ethnic groups.
This will build on Gathani’s previous research showing that those from certain ethnic minority backgrounds had significantly greater odds of less favourable tumour characteristics compared to white women, and that these differences are more marked in Black compared to Asian groups.
“Cancer inequalities – unfair, avoidable and systemic differences between population groups – are present at every stage of the cancer experience, including the prevalence of cancer risk factors, screening uptake and barriers to seeking help,” said Michelle Mitchell, chief executive of Cancer Research UK.
“Women from ethnic minority backgrounds may be less likely to take up invitations for breast screening and women from Black Caribbean and Black African backgrounds are more likely to be diagnosed at a later stage.
“This study will allow us to further understand some of the reasons behind these differences and help us find new ways to remove barriers and improve breast cancer outcomes for women from ethnic minority communities in the UK.”
The research, Cancer Research UK says, will be supported by an ethnically diverse patient and public involvement panel and a national ethnicity and breast cancer working group comprising clinical and academic experts in healthcare and cancer research.
Diagnosis
Lung cancer drug shows breast cancer potential
Ovarian cancer cells quickly activate survival responses after PARP inhibitor treatment, and a lung cancer drug could help block this, research suggests.
PARP inhibitors are a common treatment for ovarian cancer, particularly in tumours with faulty DNA repair. They stop cancer cells fixing DNA damage, which leads to cell death, but many tumours later stop responding.
Researchers identified a way cancer cells may survive PARP inhibitor treatment from the outset, pointing to a potential way to block that response. A Mayo Clinic team found ovarian cancer cells rapidly switch on a pro-survival programme after exposure to PARP inhibitors. A key driver is FRA1, a transcription factor (a protein that turns genes on and off) that helps cancer cells adapt and avoid death.
The team then tested whether brigatinib, a drug approved for certain lung cancers, could block this response and boost the effect of PARP inhibitors. Brigatinib was chosen because it inhibits multiple signalling pathways involved in cancer cell survival.
In laboratory studies, combining brigatinib with a PARP inhibitor was more effective than either treatment alone. Notably, the effect was seen in cancer cells but not normal cells, suggesting a more targeted approach.
Brigatinib also appeared to act in an unexpected way. Rather than working through the usual DNA repair routes, it shut down two signalling molecules, FAK and EPHA2, that aggressive ovarian cancer cells rely on. FAK and EPHA2 are proteins that relay survival signals inside cells. Blocking both at once weakened the cells’ ability to adapt and resist treatment, making them more vulnerable to PARP inhibitors.
Tumours with higher levels of FAK and EPHA2 responded better to the drug combination. Other data link high levels of these molecules to more aggressive disease, pointing to potential benefit in harder-to-treat cases.
Arun Kanakkanthara, an oncology investigator at Mayo Clinic and a senior author of the study, said: “This work shows that drug resistance does not always emerge slowly over time; cancer cells can activate survival programmes very early after treatment begins.”
John Weroha, a medical oncologist at Mayo Clinic and a senior author of the study, said: “From a clinical perspective, resistance remains one of the biggest challenges in treating ovarian cancer. By combining mechanistic insights from Dr Kanakkanthara’s laboratory with my clinical experience, this preclinical work supports the strategy of targeting resistance early, before it has a chance to take hold. This strategy could improve patient outcomes.”
Insight
Higher nighttime temps linked to increased risk of autism diagnosis in children – study
Entrepreneur
Kindbody unveils next-gen fertility platform
-
Insight4 weeks agoDesigner perfumes recalled over banned chemical posing fertility risk
-
Insight2 weeks agoParents sue IVF clinic after delivering someone else’s baby
-
Insight3 weeks agoWomen’s health could unlock US$100bn by 2030
-
Insight4 weeks agoChina’s birth rate hits record low despite government fertility efforts
-
Wellness3 weeks agoHRT linked to greater weight loss on tirzepatide
-
Entrepreneur6 days agoUS startup builds wearable hormone tracker
-
Menopause2 weeks agoFlo Health and Mayo Clinic publish global perimenopause awareness study
-
News4 weeks agoVerdane invest in Clue to accelerate the future of women’s health






