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‘New hope’ for millions whose dense breast tissue masks cancer on mammograms
A new software promises to detect breast cancer in women with dense breasts
A tool that uses AI to detect breast cancer could “offer new hope” for millions of women whose dense breast tissue masks cancer on mammograms.
The software, developed by the health tech company DeepLook Medical, is the first AI tool to tackle breast cancer in women with dense tissue.
The technology is based on a shape recognition algorithm that aims to improve early detection, assist clinicians in creating treatment plans and accelerate workflow.
Nearly half of women over the age of 40 are found to have dense breast tissue which makes them more likely to get breast cancer.
However, because both dense breast tissue and cancer show up as white in a mammogram, as many as 50 per cent of cancers in these women are missed on mammograms.
“More than 40 per cent of women have dense breasts, myself included,” says DeepLook Medical CEO, Marissa Fayer.
“However, this disproportionately affects Black, Asian and Jewish populations which means these women have a higher chance of getting cancer just because of their genetics. There’s no reason not to have a technology that could be used with existing tools to help these women.”
What is unique about the software, DeepLook Medical claims, is that it is able to “see through” dense breast tissue.
“It is a precise tool that helps radiologists navigate dense breast tissue and gives patients the confidence that even if they have dense breast tissue, we can see through it,” says Fayer.
“This is a technology that works for everyone. It’s not just for white women – it can be used everywhere. The exciting part about it is that it is integrated straight into the workflow of radiologists; it’s right there on their monitor.”
The tool is currently available in the US, with certifications in other global regions pending and planned.
Fayer says: “There’s nobody in the world who hasn’t been touched by cancer. Our hope is that if it happens to you, you can find it early.”
AI for all
Reading mammograms with the help of AI technologies has been shown to detect more cancers than the routine double reading by two different radiologists. However, in order for this to benefit all patients, the datasets used for creating these technologies should be curated with diversity and inclusion in mind.
STANDING Together, an international initiative that tackles bias in AI health datasets, found that many datasets in different disease areas, including breast cancer, were from high-income settings and did not report individuals’ attributes.
“Making sure you have the correct data set coming in and ensuring the technologies you are developing can be used on diverse sets are some of the biggest challenges in AI,” says Fayer.
“It’s a big push, but it’s something that we need to keep talking about and something that developers need to stand up for.”
Not ensuring diverse datasets, Fayer warns, could lead to disparities similar to the ones seen in clinical research.
“Historically, women have been underrepresented in clinical trials, which led to poor health outcomes and huge data gaps. That’s why we need to keep talking about diversity, especially when it comes to AI. There’s no reason to stop talking about it.”
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.”
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