Cancer
HPV awareness could save thousands from cervical cancer in low-resource nations – report

A widespread lack of awareness of how a common virus is the primary cause of cervical cancer is leading to thousands of needless deaths every year, concludes a global report.
But embracing more advanced screening tools and the willingness of more women to self-collect health data could be pivotal in addressing the issue.
That is according to a study spanning 12 countries in Europe and Latin America commissioned by the pharmaceutical giant Roche.
Half of those polled had either limited or no awareness of the important role human papillomavirus (HPV) plays in cervical cancer.
HPV is a common virus transmitted through sexual contact and is the primary cause of cervical cancer, responsible for over 99 per cent of cases.
Every year, more than 600,000 women worldwide are diagnosed with cervical cancer and over 340,000 die, with nine in every ten of these women living in low-resource countries.
However, 93 per cent of cervical cancers could be prevented entirely through appropriate screening and HPV vaccination.
The research also demonstrates that with screening rates varying between regions, significant barriers continue to exist that are preventing women from seeking testing.
Respondents in all countries, including both developed and developing nations, reported that concerns about the testing procedure being painful were common – up to 63 per cent in some countries.
Also cited was a sense of discomfort about discussing their sexual history or sexuality with a healthcare provider – up to 57 per cent in some countries.
Joanna Sickler, vice-president, health policy and external affairs at Roche Diagnostics, said: “Thousands of women are needlessly dying from cervical cancer every year. This survey highlights some of the most important barriers to screening, as well as the opportunities we have to prevent disease and improve women’s health.
“With many women reporting being open to new screening tools like self-collection, it has never been more important that communities, health systems, governments and innovators come together to seize this opportunity, and provide the early detection and treatment needed to avoid so many preventable deaths.”
The World Health Organisation is focused on accelerating the elimination of cervical cancer globally, with its latest guidelines recommending HPV DNA testing as primary screening for all women.
Its strategy seeks to ensure that by 2030, 90 per cent of girls are fully vaccinated against HPV by age 15.
It also aims for 70 per cent of women to have been screened using a high-performance test by age 35, and again by age 45, with 90% of those eligible linked to treatment.
This, along with vaccination against HPV, could prevent more than 62 million deaths in the next 100 years.
More than 50 per cent of new cervical cancers occur in women who have never been screened, or have not been screened in the previous five years of their lives.
Many factors can contribute to individuals not participating in cervical cancer screening programs, such as access to healthcare, social and economic barriers, history of traumatic experience, cultural concerns and embarrassment.
The many barriers preventing women from seeking HPV screening could explain the widespread interest in self-testing revealed by the survey.
In European countries, where testing is more routinely available, 57 per cent of women were interested in the opportunity to collect their own samples for testing. This figure rose to 77 per cent in Latin American countries, where routine screening is less readily available because of a lack of infrastructure and available appointment means.
This discrepancy was also reflected in healthcare professional-reported results, which showed 72 per cent of healthcare professionals and government workers in Latin American countries agree their country needs a self-collection programme, compared to 48% in Europe.
Susana Wong, patient advocate and director of Lazo Rosado, Perú, is working to expand access to HPV testing in her country.
She said: “We know very well how to prevent and treat cervical cancer. Now, with HPV molecular tests and vaccination, there really is hope to eliminate this disease. This test gives you the opportunity to live and to live well with your family. It can help women to empower themselves as to their health.”
Men demonstrated even lower levels of awareness compared to women, particularly in Europe.
While 55 per cent to 76 per cent of men in Latin America reported some understanding of HPV, only 35 per cent to 51 per cent of men in Europe had any understanding of HPV at all.
The lower awareness among men highlights the need for educational initiatives to include men, given their potential role in the transmission and prevention of HPV, says the report.
“This survey highlights both the challenges ahead and the significant opportunities we have to advance HPV prevention,” Sickler said.
“By enhancing public education about HPV risks and reimagining how we deliver care, we can drive higher screening rates and make meaningful progress in combating cervical cancer.”
Fighting cervical cancer
Screening for HPV can help identify women who are at risk of developing cervical cancer, so that the disease can be treated early before invasive cancer has a chance to develop.
In poorer countries, women are often diagnosed with cervical cancer at a more advanced stage, where the opportunity for a cure is low.
Last mont, Roche joined the Global HPV Consortium which aims to advance cervical cancer prevention efforts and raise the prominence of early screening and timely detection using high-performance HPV-DNA tests.
Conducted in Q1 2024, the HPV Health Understanding Survey involved 8,703 men and women across 12 countries.
It also measured perceptions among 2,585 healthcare professionals (HCPs) and government professionals of HPV testing availability in their own market.
Cancer
Research uncovers potential new target for breast cancer therapy

Targeting CD1d altered immune cells slowed tumour growth and improved immunotherapy responses in mouse models of breast cancer, researchers found.
The findings suggest blocking the molecule could make the environment around breast tumours more favourable to anti-cancer immune responses.
Further work is needed to understand how these immune changes occur and how the approach could be safely used in patients.
Researchers from King’s College London, the Francis Crick Institute and University College London investigated how immune cells inside breast tumours influence cancer growth.
They focused on myeloid cells, a group of immune cells found in large numbers within tumours that can either support an immune attack against cancer or contribute to tumour growth and immune evasion.
The team examined CD1d, a molecule found on the surface of myeloid and other immune and tissue cells that helps regulate immune responses.
When CD1d was genetically removed from cells in a mouse model of breast cancer, the mice were more resistant to tumour growth. Researchers also saw changes in myeloid cell populations, including increased activity among cells that can help attack cancer.
The team then blocked CD1d using an antibody and again observed changes in myeloid cells and slower tumour growth. Blocking CD1d also improved responses to immunotherapy in the mouse model.
Researchers used single-cell RNA sequencing, a technique that examines gene activity in individual cells, to investigate the immune changes in more detail.
They identified a population of myeloid cells called monocytes that expressed genes associated with inflammation, an important part of the immune response. These cells were particularly important in restricting tumour growth in the mouse models.
A similar pattern of gene activity was identified in data from human breast cancer tumours. Its presence in myeloid cells was associated with positive responses to immunotherapy in breast cancer patients.
However, the findings in people were based on gene expression data and did not test CD1d-targeting treatment in patients.
Professor Patricia Barral, professor of immunobiology at King’s College London and senior author of the study, said: “Many breast cancers do not respond well to current immunotherapies.
“Our findings reveal a previously unrecognised mechanism by which immune cells within tumours are regulated.
“While CD1d is best known for helping immune cells recognise lipid molecules, we found that it also plays a role in shaping the behaviour of myeloid cells within tumours.
“These findings suggest that targeting the immune cells that surround and support tumours could boost anti-cancer immunity and potentially improve treatment responses in the future.”
Researchers now plan to investigate how the immune changes occur and how they can be safely harnessed in patients.
They also want to examine whether targeting CD1d could enhance existing treatments and influence treatment responses in different cancer types.
The work was supported by UKRI BBSRC, Breast Cancer Now and the Cancer Research UK City of London Centre.
Menopause
Cancer drug could tackle osteoporosis menopause weight gain

An experimental cancer drug reduced bone loss and body fat in mice modelling post-menopausal changes, early research suggests.
The compound, CADD522, appeared to strengthen bones and help the animals stay leaner after surgery designed to mimic hormonal changes seen after menopause.
The treatment remains at an early experimental stage and has so far only been tested in animals.
The study, led by the University of East Anglia, investigated CADD522, which was originally developed to block a protein involved in the growth and spread of several cancers.
Mice treated with the compound for eight weeks showed significant improvements in bone health. Scans found increased bone volume and better preservation of the honeycomb-like structures inside bones that are crucial for strength and resilience.
Blood tests suggested the treatment stimulated new bone growth without interfering with the body’s normal process of breaking down and rebuilding bone.
Dr Darrell Green, lead researcher from UEA’s Norwich Medical School, said: “Osteoporosis affects around one in three women over the age of 50, leaving sufferers vulnerable to painful fractures that can seriously impact quality of life.
“Current treatments exist, but many are plagued by side effects, safety concerns or inconvenient dosing schedules that make long-term use difficult.”
The researchers also found that mice receiving CADD522 weighed less than untreated mice despite eating the same amount of food.
They had less body fat and fewer fat deposits in their bone marrow, a process commonly seen after menopause and linked to declining bone health.
The team also examined brain tissue and found that the drug appeared to reverse several menopause-related changes in fatty acids.
Levels of omega-3 fats including DHA remained largely intact, while several other lipid abnormalities shifted back towards healthier patterns.
Green said: “We didn’t directly test for memory or thinking ability, but our work raises questions about whether this drug could one day help address wider menopause-related health problems.”
Safety experiments in mice, rats and dogs found that CADD522 could be taken orally and was well tolerated.
The compound also appeared to be metabolised more slowly in human tissue than in rodents, potentially improving its performance in people.
“This is still in the early stages and has so far only been tested in animals but we hope that the benefits will translate to humans to ultimately reduce fracture rates,” added Green.
The research was led by UEA in collaboration with the University of Maryland, the Scintillon Research Institute in San Diego and the University of Stirling.
Safety testing was funded by The Sir William Coxen Trust as part of the development of CADD522 as a childhood cancer treatment.
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