Insight
Early PET scan could chemo response in aggressive breast cancer – study
An early PET scan after one cycle of chemotherapy may help predict how aggressive breast cancer responds to treatment, a study suggests.
Research led by The Institute of Cancer Research, London and King’s College London suggests that an early scan taken after one cycle of chemotherapy could help predict how well a patient’s cancer will respond to treatment.
The study focused on patients with triple-negative breast cancer (TNBC), an aggressive form of the disease in which cancer cells lack receptors for the hormones oestrogen and progesterone, as well as the HER2 protein.
Patients with TNBC are usually treated with chemotherapy prior to surgery. While many respond well, residual disease at surgery, typically around six months later, is associated with a significantly poorer prognosis. Identifying people sooner who are unlikely to respond remains a major clinical challenge.
The research explored whether using PET imaging shortly after treatment begins, rather than relying only on MRI scans later in the treatment process, could provide earlier insight into how a patient’s cancer is responding. Twenty-two patients were recruited, with fourteen undergoing FDG-PET scans before treatment and after the first cycle of chemotherapy.
The findings, published in Clinical Cancer Research, showed that changes seen on PET scans after just one cycle of chemotherapy were strongly associated with subsequent response, including whether there was no detectable cancer, known as a complete response, by the end of treatment. Importantly, early PET response showed stronger associations with treatment outcomes than standard mid-treatment MRI scans in this study.
Being able to identify patients who are not responding well at an early stage could allow clinicians to adjust treatment sooner or consider alternative approaches. These findings may also support future strategies to better tailor treatment intensity to individual patients.
The study also compared two types of PET tracers, FDG and FLT, to determine which was most suitable. While both met the study’s technical criteria, FDG-PET was selected for further evaluation due to its better image quality, greater consistency and wider use in clinical practice.
The research also explored how imaging changes after just one cycle of chemotherapy relate to the body’s immune response to treatment. Biopsies taken before and after the first cycle of chemotherapy showed that an increase in immune cells within the tumour was strongly associated with both early PET changes and improved treatment outcomes.
The researchers emphasise that these findings now need to be validated in larger studies. Future work will aim to confirm these results in broader patient groups and explore more accessible imaging approaches, such as ultrasound, alongside PET and MRI.
Sheeba Irshad, professor of cancer immunology at King’s College London and lead of the Breast Cancer Now KCL Research Unit, said:
“In patients who had PET scans both before treatment and after the first cycle, we found that this early scan could predict whether they were likely to achieve a complete response by the end of treatment. These findings highlight the potential of early imaging to guide treatment decisions, and now need to be validated in larger, modern clinical trials.”
Andrew Tutt, professor of breast oncology at The Institute of Cancer Research, London, said:
“Research that helps us determine early who is already benefitting from standard neoadjuvant chemotherapy and who might benefit from clinical trials to find better treatments is vital. This study shows that FDG-PET may have great value in this regard. We hope to be able to design studies that further investigate and validate these findings.”
The study was supported by funding from King’s College London and Guy’s and St Thomas’ NHS Foundation Trust, Breast Cancer Now, Cancer Research UK, and Guy’s and St Thomas’ Charity.
Ki-67, a protein used to measure tumour growth, may also help prevent chromosome errors that drive cancer, a study suggests.
The findings could change how scientists view Ki-67, a marker commonly used in breast cancer and other tumours to assess how quickly cancer cells are growing.
Researchers found the protein may help preserve genome stability by maintaining the structural integrity of centromeres, key parts of chromosomes that help ensure DNA is shared correctly during cell division.
The research was led by professor Paola Vagnarelli at Brunel University of London in collaboration with scientists at the University of Edinburgh and the Technical University of Berlin.
Professor Vagnarelli said: “Doctors already measure Ki-67 to see how aggressive a cancer might be. But our results suggest it is actually helping maintain genome stability.
“That means it may be more than a marker. It could potentially also be a therapeutic target.”
The study examined three proteins that attach to chromosomes during cell division and help rebuild the molecular system that tells each new cell what kind of cell it is.
Every human cell carries identical DNA. What makes a liver cell different from a brain cell is which genes are switched on and which are kept inactive.
When a cell divides, that entire system of switches must be rebuilt. The three proteins involved in this process were Ki-67, Repo-Man and PNUTS.
Vagnarelli’s team developed a method that individually removes each protein from a living cell at the precise point of division. Older techniques could not isolate that moment cleanly.
They found that cells rely on all three proteins to reset themselves after division, but each failed in a different way when removed.
Without PNUTS, gene activity spiralled out of control and thousands of genes switched on at once.
Without Repo-Man, cells escaped safety checkpoints that usually stop damaged or abnormal cells from continuing to divide.
“What we didn’t expect was how clean the separation was,” said Vagnarelli.
Each protein fails in its own specific way. There is no redundancy, no safety net. Which means there are three separate points at which this process can go wrong.
“When the system breaks down, cells can emerge with the wrong number of chromosomes. That condition, called aneuploidy, is seen in disorders such as Down syndrome and in many cancers.
“We also found that these chromosome errors can trigger inflammatory signals inside the cell.”
Aneuploidy means a cell has too many or too few chromosomes, which can disrupt normal growth and function.
Inflammatory signals are chemical messages that can make a cell behave as if it is responding to injury or infection.
“These cells behave almost as if they are under attack,” said Vagnarelli.
“The immune response switches on because the genome is unstable.
“That link between chromosome imbalance and inflammation could help explain patterns we see in several diseases.”
The researchers said the findings may help cancer scientists better understand how chromosome instability, loss of gene regulation and cells dividing before they are ready contribute to tumour growth.
They said understanding the normal machinery that prevents these errors may help researchers find ways to push cancer cells into making mistakes they cannot survive.
“We now have a clearer map of the machinery that resets the cell after division,” said Vagnarelli.
“That knowledge gives us a starting point for thinking about new therapeutic approaches.”
After more than a decade of campaigning, doctors around the world have agreed to rename polycystic ovary syndrome (PCOS).
It is hoped the new name, polyendocrine metabolic ovarian syndrome, or PMOS, will help end the misconception that the condition is all about cysts, which campaigners say has contributed to missed diagnoses and inadequate treatment.
The condition affects one in eight women, or 3.1m women and girls in the UK, and is linked to hormone fluctuations that can affect weight, mental health, skin and the reproductive system.
The renaming was spearheaded by UK patient charity Verity alongside Professor Helena Teede, director of Melbourne’s Monash Centre for Health Research and Implementation.
It followed 14 years of consultation with clinicians and patients around the world.
The new name was published in a consensus statement on May 12 and announced at the European Congress of Endocrinology in Prague.
The paper states that PCOS should now be referred to as PMOS.
“This is a landmark moment that will lead to desperately-needed worldwide advancements in clinical practice and research,” said Professor Teede.
“It was heart-breaking to see the delayed diagnosis, limited awareness and inadequate care afforded those affected by this neglected condition.”
When doctors first named PCOS in 1935, they thought it was mainly caused by physical changes to the ovaries.
Decades of research have since changed that understanding, with clinicians now agreeing the condition is far more complex.
“What we now know is that there is actually no increase in abnormal cysts on the ovary and the diverse features of the condition were often unappreciated,” Professor Teede added.
“A name change was the next critical step towards recognition and improvement in the long term impacts of this condition.”
The exact cause of the condition is still unknown, though it is thought to be linked to abnormal hormone levels and is associated with insulin resistance and raised levels of testosterone and luteinising hormone.
Insulin resistance means the body does not respond properly to insulin, the hormone that helps control blood sugar. Luteinising hormone helps regulate ovulation.
Common symptoms listed by the NHS include irregular periods or no periods at all, difficulty getting pregnant, excessive hair growth, weight gain, thinning hair, oily skin and acne.
Campaigners have acknowledged that the name change could cause temporary confusion.
“Despite decades of tireless advocacy to improve awareness, we recognised that the risk of change would be worth the reward,” said Rachel Morman, chairwoman of Verity.
“This shift will reframe the conversation and demand that it is taken as seriously as the long-term, complex health condition it is.”
It is also unclear if, or when, the NHS will change the language it uses.
An NHS England spokesperson said: “We routinely review and update content on the NHS website to ensure it reflects the latest clinical advice and will carefully consider these recommendations.
“The NHS will also continue our work to improve women’s healthcare, including for this important group, which involves giving women more choice over their care, bringing down waiting times, and delivering more care in communities.”
News
The RESIL-Card tool launches across Europe to strengthen cardiovascular care preparedness against crises
By Women As One
Women As One is proud to have contributed to the development of the RESIL-Card tool as an active Advisory Board member, ensuring that gender equity and the perspectives of women cardiologists were embedded from the outset.
Through strategic input on the project’s design, formal support of its EU4Health funding application, and ongoing participation in advisory activities, Women As One has helped shape both the direction and implementation of this initiative.
By amplifying awareness, facilitating engagement from our global community, and advocating for inclusive representation, we have worked to ensure that RESIL-Card reflects the diverse realities of cardiovascular care and supports more equitable, resilient health systems in times of crisis. Read more about our involvement here.
On the European Day for Prevention of Cardiovascular Risk (March 14), the RESIL-Card consortium proudly announces the official launch of the RESIL-Card tool, a free online resource designed to help hospital cardiovascular professionals and other stakeholders assess and strengthen the resilience of their care pathways — ensuring that lifesaving care remains accessible even during times of crisis.
Available now at https://www.wecareabouthearts.org/resil-card/online-tool/, the RESIL-Card tool offers a structured self-assessment framework for evaluating the preparedness of cardiovascular services and identifying concrete actions to maintain continuity of care when health systems face disruption.
“Cardiovascular care must remain uninterrupted regardless of the challenges health systems face,” said Professor William Wijns, Research Professor in Interventional Cardiology, University of Galway, Ireland, and We CARE – RESIL-Card Coordinator.
“The RESIL-Card tool provides healthcare teams with a practical way to assess preparedness, identify improvement opportunities, and ultimately ensure that patients continue to receive lifesaving care when it matters most.”
Why the RESIL-Card tool was developed
Cardiovascular diseases remain the leading cause of death in Europe, making the continuity and resilience of care pathways a public health priority.
Despite advances in diagnosis and treatment, recent crises – from pandemics to geopolitical instability – have exposed the vulnerability of healthcare systems.
In today’s increasingly uncertain health landscape and global environment, proactive preparedness is no longer optional – it is essential.
The RESIL-Card tool was developed as part of an EU4Health-funded initiative to support organisations providing lifesaving cardiovascular care in strengthening their preparedness, improving coordination, and safeguarding patient outcomes in times of disruption.
The initiative focuses on practical resilience strategies to help health systems anticipate challenges rather than simply react to them.
“Healthcare systems today operate in an increasingly complex and unpredictable environment,” said Ariadna Sanz, Health Policy Manager at the Catalan Health Service (CatSalut).
“Tools like RESIL-Card help shift the focus from responding to crises toward proactively building strong, adaptable cardiovascular care pathways that protect patients over the long term.”
A collaborative and evidence-based methodology
The RESIL-Card tool is grounded in a robust, multidisciplinary development process involving cardiovascular experts, healthcare professionals, public health specialists, patient organisations, and policy stakeholders from across Europe.
Its development combined comprehensive literature reviews and analysis of existing preparedness frameworks with extensive stakeholder consultations and co-creation workshops. Real-world insights from healthcare providers and patient representatives were integrated throughout the process to ensure the tool reflects the practical realities of cardiovascular care delivery. The methodology also included iterative testing and validation phases, allowing the consortium to refine the tool and ensure it is both scientifically rigorous and practical for everyday use.
“From the outset, RESIL-Card was co-created with clinicians, patient representatives, and health system experts to ensure it reflects real-world practice,” said Professor Niek Klazinga, Em. Professor of Social Medicine, Amsterdam University Medical Centre / University of Amsterdam.
“The result is a tool that combines scientific rigour with practical usability, enabling healthcare teams to translate resilience concepts into concrete action.”
What the RESIL-Card tool is and how it works
The RESIL-Card tool is a practical online self-assessment instrument designed for use by a multistakeholder resilience team led by cardiovascular care providers.
Through a structured four-step process, including a questionnaire and guided analysis, users assess the preparedness and resilience of their cardiovascular care pathways and gain a clear understanding of how well their services can maintain care continuity during periods of disruption.
The assessment process helps teams identify existing strengths as well as potential gaps in service delivery.
Based on the responses provided, the tool offers tailored recommendations and examples of best practices to support improvement.
These insights can then inform strategic planning, helping organisations prioritise actions that reinforce care continuity, strengthen patient safety, and optimise the long-term sustainability of cardiovascular services.
Benefits for Key Stakeholders
For healthcare professionals and organisations delivering cardiovascular care, the RESIL-Card tool provides a structured way to strengthen preparedness and crisis-response capacity.
By helping teams assess their existing systems and identify areas for improvement, the tool supports better coordination across services and clinical disciplines.
It also facilitates evidence-based planning and quality improvement initiatives, enabling healthcare organisations to enhance their operational resilience while maintaining efficient and manageable care processes.
“By promoting awareness about strengths and limitations of each system, the RESIL-Card tool will help physicians to understand where improvements are needed and strengthen coordination and planning to face crises,” said Doctor Alfredo Marchese, Chief of Interventional Cardiology Department at Santa Maria Hospital, Bari, Italy and President of the Italian Society of Interventional Cardiology (GISE).
For patients and patient organisations, the RESIL-Card tool contributes to improving the reliability and continuity of essential cardiovascular care.
By encouraging healthcare providers to proactively address vulnerabilities in care pathways, the tool helps promote uninterrupted access to diagnosis, treatment, and follow-up services.
It also supports a more patient-centred and equitable approach to care delivery, encouraging collaboration and transparency in preparedness planning.
Ultimately, these improvements can contribute to better health outcomes and increased safety for people living with cardiovascular disease.
“For people living with cardiovascular disease, continuity of care is not optional — it is essential,” said Teresa Glynn, Senior Executive Strategy & Partnerships at Global Heart Hub.
“By helping healthcare providers strengthen preparedness, RESIL-Card supports more reliable and equitable access to treatment and greater confidence for patients and their families.”
At the European level, the RESIL-Card initiative contributes to a shared effort to strengthen the resilience of health systems.
By providing a common framework for assessing and improving preparedness, the tool encourages cross-border learning and facilitates the exchange of best practices among healthcare providers and policymakers.
It also aligns closely with European Union priorities on health system preparedness, crisis response, and sustainability.
By helping healthcare organisations identify vulnerabilities and implement practical resilience measures, the RESIL-Card tool can support efforts to reduce inequalities in access to high-quality cardiovascular care across EU Member States.
“Strengthening the resilience of cardiovascular care is a shared European priority,” said Rachel Kenna, Ireland’s Chief Nursing Officer at the Department of Health.
“While the RESIL-Card tool has not yet been tested in an Irish setting we look forward to seeing how it can support the development of more sustainable and prepared healthcare systems.”
Call to Action
Cardiovascular care providers and other healthcare professionals are encouraged to explore the RESIL-Card tool at https://www.wecareabouthearts.org/resil-card/online-tool/.
By using it to assess their cardiovascular care pathways, they will identify areas where resilience can be strengthened and ensure that essential services remain accessible during times of disruption.
Patient organisations also play an important role in this effort. By engaging with healthcare providers and policymakers, they can help promote the use of the tool and ensure that patient perspectives are meaningfully incorporated into preparedness and response planning.
Policymakers and health authorities are invited to support the adoption of the RESIL-Card tool within regional, national and European strategies aimed at strengthening healthcare system resilience.
Integrating the tool into policy frameworks can help safeguard access to essential cardiovascular services and enhance the ability of health systems to respond effectively to future challenges.
Learn more about Women As One at womenasone.org
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