News
New ovarian cancer drug shows promise in animal model
Israeli researchers tested the new drug and achieved a survival rate of 80 per cent

Researchers from Tel Aviv University have presented a new approach to the treatment of ovarian cancer using RNA-based nanodrugs, demonstrating an 80 per cent survival rate in lab models.
In a study, published in the scientific journal Science Advances, the protein CKAP5 (cytoskeleton-associated protein) was used for the first time as a therapeutic target for RNA-based nanodrugs.
After identifying a genetically unstable mutation resistant to both chemotherapy and immunotherapy in the tissues of ovarian cancer, the researchers targeted these cells with lipid nanoparticles containing RNA for silencing CKAP5 – causing the cells to collapse and achieving an 80 per cent survival rate in animal models.
The breakthrough was achieved by a TAU research team led by Professor Dan Peer of the Shmunis School of Biomedicine and Cancer Research, a global pioneer in the development of RNA-based drugs.
“The protein CKAP5 has never been studied with relation to the fight against cancer, simply because there was no known way to silence it,” says Dr Sushmita Chatterjee, post-doctoral student from India at Professor Peer’s lab.
“The lipid nanoparticles developed by Professor Peer enabled us for the first time to silence this protein through targeted delivery of an RNA drug.
“We proved that CKAP5, a protein responsible for the cell’s stability, can be silenced, and that this procedure collapses and destroys the entire cancer cell.”
At the second stage of the study the researchers tested the new CKAP5-silencing RNA drug on 20 types of cancer.
Some cancer cells proved more sensitive than others to this procedure. Cancers displaying high genetic instability, which are usually highly resistant to chemotherapy, were found to be especially sensitive to the silencing of CKAP5.
“All cancer cells are genetically unstable,” Chatterjee adds.
“Otherwise, they would be healthy, not cancerous. However, there are different levels of genetic instability.
“We found that cancer cells that are more unstable, are also more affected by damage to CKAP5. Our drug pushed them to their limit, and essentially destroyed their structure.
“Our idea was to turn the trait of genetic instability into a threat for these cells, by using RNA to silence the flawed protein. We demonstrated for the first time that CKAP5 can be used to kill cancer cells, and then observed the biological mechanism that causes the cancer cells to collapse in the protein’s absence.”
Equipped with these insights, the researchers tested the new drug in an animal model for ovarian cancer, achieving a survival rate of 80 per cent.
“We chose ovarian cancer because it’s a good target,” explains Professor Peer.
“While highly resistant to both chemotherapy and immunotherapy, this type of cancer is very sensitive to the silencing of CKAP5.
“It should be emphasised that the CKAP5 protein is a new target in the fight against cancer. Targeting cell division is not new, but using RNA to target proteins that make up the cell’s skeleton is a new approach and a new target that must be further investigated.
“As researchers, we are involved in something like a dominoes game: we always look for the one piece in the cancer’s structure that is so important, that if we pull it out the entire cell will collapse,” he continues.
“CKAP5 is such a domino piece, and we are already working on more applications, this time in blood cancers.”
Menopause
High street bakery chain Gail’s reveals menopause plan

Gail’s has unveiled a menopause action plan offering new workplace support to thousands of staff ahead of legal reforms due in 2027.
The high street bakery chain will offer new benefits including 24/7 digital GP access and a new employee assistance programme, according to The Times.
It will also explore new online training for staff, including specific training for management.
Gail’s people director Miranda Burgum told The Times: “All we’re trying to do is talk freely and for it not to be a forbidden subject. It’s helping our managers and teams understand that this isn’t a taboo.”
“We’re going to develop the education with our managers, so it will be threaded through all our policies
“It will look at induction training, it will look at the types of people we need to make sure that we make reasonable adjustments for.
“And if somebody needs some sort of risk assessment, we’re going to be looking at [that].”
The move comes ahead of reforms due to be introduced in spring 2027 under the Employment Rights Act.
UK employers with 250 or more employees will be legally required to publish and update official menopause action plans.
The plans are intended to support employers to take effective action to improve workplace gender equality and support employees experiencing menopause.
Fertility
Paracetamol use may impact future fertility, studies suggest

Paracetamol use in pregnancy was not linked to autism or ADHD, while separate research found reproductive differences in girls exposed before birth.
One study analysed health records from more than 120,000 children and found no increased risk of autism following prenatal paracetamol exposure.
A separate analysis of nearly 100,000 children also found no increased risk of ADHD among those born to mothers who used the painkiller during pregnancy.
Researchers from the Hong Kong Hospital Authority examined electronic health records covering pregnancies between January 2001 and December 2023.
The autism analysis included 124,333 children, who were nine years old on average and split almost evenly between males and females. There were 3,445 autism diagnoses, representing 2.8 per cent of the group.
The ADHD analysis involved 97,285 children, who were seven years old on average and also split evenly between males and females. There were 5,168 ADHD diagnoses, representing 5.3 per cent.
Women prescribed paracetamol during pregnancy were more likely to be older and have pre-existing conditions including psychiatric disorders, as well as reasons for taking the drug such as infection, fever or chronic pain.
No association was found between prenatal paracetamol exposure and either autism or ADHD.
The findings did not differ according to the trimester in which paracetamol was taken or whether use was intermittent or daily. Advanced maternal age, defined as pregnancy in women over 35, did not alter the findings.
The researchers wrote: “Paracetamol remains a safe and essential analgesic [pain reliever] and antipyretic [fever reducer] during pregnancy, whereas alternatives, such as NSAIDs and opioids carry well-documented risks.
“Unwarranted reluctance to use paracetamol could lead to undertreatment of pain and fever, or the use of more harmful alternatives, both posing risks to the pregnancy and developing fetus.”
The authors said women should assess paracetamol use with guidance from their doctor.
A separate study involving 685 pregnant women without pre-existing conditions and 302 infant daughters found associations between prenatal paracetamol exposure and differences in reproductive organs and hormone levels.
Researchers from Copenhagen University Hospital enrolled the women during their first trimester and assessed them during the first trimester, third trimester and again when their babies were three months old.
At around three months, infants experience a temporary rise in reproductive hormones sometimes called mini-puberty.
Pregnant participants completed questionnaires every two weeks about their use of pain medicines including paracetamol. Infant girls underwent ultrasound scans of their reproductive organs and blood tests to measure hormone levels.
Researchers also examined a separate group of 1,210 girls followed from infancy to adolescence whose mothers reported paracetamol use during the third trimester.
Three-month-old girls exposed to paracetamol before birth had an average 40 per cent smaller ovarian volume, 13 per cent smaller uterine volume and 23 per cent fewer ovarian follicles.
Girls exposed during the first trimester also had lower levels of Anti-Müllerian hormone, a marker of ovarian function.
Among the older girls, those exposed before birth were more likely to have smaller uteruses at puberty and smaller ovaries during their teenage years.
Dr Margit Bistrup Fischer, lead study author and postdoctoral researcher in the Department of Growth and Reproduction at Rigshospitalet hospital in Denmark, said: “Animal studies have demonstrated that impaired formation of ovarian follicles can lead to reduced fertility and earlier reproductive aging.
“Whether the differences observed in our study have implications for fertility and age at menopause in humans remains unknown and will require long-term follow-up of the girls in our cohort.”
She cautioned that women who had used paracetamol during pregnancy “should not be alarmed by our findings”, as the study found associations rather than direct causation and outcomes for individual women and children are unclear.
“Importantly, our study does not evaluate whether [acetaminophen] causes reproductive problems, nor does it provide evidence that prenatal exposure affects future fertility or age at menopause,” she said.
“Although we observed similar associations in an independent cohort, long-term follow-up is needed to determine whether these early-life differences have any clinical significance later in life.”
Insight
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.
Entrepreneur1 week agoKOVE Medical raises €1.7 million to improve safety of foetal surgery
Mental health1 week agoUK study aims to transform maternity care for high-risk pregnancies
Mental health2 weeks agoPMDD after SSRIs or hormones: Why the brain may be the missing treatment target
Diagnosis2 weeks agoArk Surgical secures further institutional backing to accelerate US expansion
Entrepreneur3 days agoLast chance to save on Women’s Health Week and Women’s Sport Summit: Early Bird pricing ends 11 September
Menopause6 days agoMenopause hormone treatment may ease brain fog, study suggests
Motherhood2 weeks agoThousands of UK women develop undiagnosed PTSD after childbirth each year – study
Cancer2 weeks agoAI analysis of mammograms can detect heart disease, study suggests











