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.”
We are excited to reveal the winners of the third annual Femtech World Awards.
The winners were announced at a virtual event this afternoon attended by shortlisted companies, along with sponsors and judges.
The event welcomed guests from the UK, Europe, Asia, Africa and North America.
Thank you to all 174 entries, as well as the sponsors for making the event possible.
See you in 2027!
Femtech World Awards 2026 Winners
Winner:
Shortlisted:
IVI RMA x Juno Genetics
Natural Cycles
Winner:
Highly commended:
U-Ploid
Shortlisted:
Hello Inside
Winner:
WISE HF, led by Prof. Mary Ryder
Highly commended:
Cardiac College for Women
Shortlisted:
Hyvelle Ferguson-Davis
CognitiveCare
Winner:
Highly commended:
Youterus
Shortlisted:
ŌURA
Winner:
Shortlisted:
LeanShield by ParrotPal Group
Perigen
Winner:
Shortlisted:
Body Moody
Looop
Winner:
Shortlisted:
Owning Your Menopause
Womeno
Winner:
Shortlisted:
The Blue Box
Celbrea
Winner:
Shortlisted:
HealCycle
Mor
Winner:
Shortlisted:
HRC Fertility
Mira
Pregnant women’s expectations about postpartum sleep may predict sleep quality after birth, outweighing prior sleep and psychiatric history, a study suggests.
The findings suggest attitudes and beliefs about sleep during pregnancy could be a modifiable risk factor for postpartum sleep concerns.
They also indicate that, among women expecting the poorest sleep, higher postpartum anxiety may further worsen sleep quality.
Sammy Dhaliwal, lead author is clinical health psychologist and research fellow in the department of obstetrics and gynaecology at the Perelman School of Medicine at the University of Pennsylvania.
Dhaliwal said: “Most pregnant women in our sample anticipated poor postpartum sleep before it occurred, and it was striking that those expectations predicted worse sleep outcomes even after accounting for factors such as prior sleep disorders, psychiatric history, and number of previous births.
“This suggests that attitudes and beliefs about sleep during pregnancy may represent a modifiable target for early intervention before postpartum sleep problems emerge.”
Sleep disturbance affects an estimated 60 to 80 per cent of postpartum women and is linked to a higher risk of depression and anxiety.
Researchers said it is often regarded as an expected part of life after childbirth rather than a health issue that may be addressed earlier.
The study enrolled 432 pregnant women at about 24 weeks of gestation, meaning around 24 weeks into pregnancy.
Participants completed measures of their expectations about postpartum sleep, current sleep quality using the Pittsburgh Sleep Quality Index, and mood using validated depression and anxiety scales.
Assessments were repeated at six, 12 and 24 weeks postpartum.
A subset of 49 women also wore wrist actigraphy devices at six to eight weeks postpartum.
Actigraphy uses a wearable device, similar to a watch, to estimate sleep and wake patterns based on movement.
The results showed that 70 per cent of pregnant women, or 301 of 432 participants, expected poor sleep in the postpartum period.
Researchers found that predicted sleep disruption during pregnancy was a significant predictor of postpartum sleep concerns.
Among first-time pregnant women without prior health concerns, those who expected greater sleep disturbance had significantly more disrupted sleep after birth, measured by both actigraphy and self-report.
Among women who expected the worst sleep quality, higher postpartum anxiety significantly worsened both measured sleep and self-reported sleep, independent of anxiety levels during pregnancy.
Dhaliwal said the findings point to two possible areas for intervention: addressing sleep-related beliefs during pregnancy and treating postpartum anxiety.
Dhaliwal said: “Postpartum sleep disruption is often treated only after problems develop, but our findings suggest there may be an opportunity to intervene earlier during pregnancy.
“Addressing sleep-related beliefs and postpartum anxiety during prenatal and postpartum care may help improve sleep and emotional well-being in new mothers.”
A weight loss jab may improve fertility outcomes in women with PMOS, early findings from an ongoing clinical trial suggest.
The proof-of-concept analysis found that injectable semaglutide may offer reproductive benefits while also addressing obesity and metabolic dysfunction.
It is the first report to examine how injectable semaglutide may improve reproductive outcomes in women with PMOS while also addressing obesity and metabolic dysfunction.
The work forms part of the ongoing RESTORE clinical trial.
Melanie Cree, professor at CU Anschutz and first author of the report, said: “Women with PMOS frequently face a frustrating choice between treatments that target reproductive symptoms and those that address metabolic health.
“Our early findings suggest injectable semaglutide may have the potential to improve both, offering a more comprehensive approach to care.
“This medication is incredibly promising when someone responds with 10 per cent weight loss.”
The trial is examining whether semaglutide can restore ovulation and improve reproductive health in adolescents and adults with polyendocrine metabolic ovarian syndrome, known as PMOS.
PMOS, formerly known as polycystic ovary syndrome or PCOS, is a hormone and metabolic condition linked to irregular periods, raised testosterone levels, infertility risk, obesity and increased cardiometabolic disease.
Cardiometabolic disease refers to conditions linked to the heart and metabolism, such as heart disease, high blood pressure and type 2 diabetes.
Existing treatments, including metformin and hormonal contraceptives, often do not fully address reproductive and metabolic complications at the same time.
The analysis focused on participants aged 12 to 35 who lost at least 10 per cent of their body weight during treatment.
Researchers said reproductive improvements appeared earlier than expected, prompting them to report preliminary findings while the wider study continues.
Cree is also a paediatric endocrinologist at Children’s Hospital Colorado.
Endocrinologists are doctors who specialise in hormones and hormone-related conditions.
Cree said: “What makes this work particularly important is that it focuses specifically on women with PMOS receiving injectable semaglutide.
“Although GLP-1 medications have transformed obesity treatment, there remains a significant need for rigorous data examining how these therapies affect fertility and reproductive function in this population.”
The RESTORE study is evaluating semaglutide treatment in girls and women with PMOS and obesity.
Its broader aim is to determine whether weight loss and metabolic improvements can restore ovulation and improve reproductive outcomes.
Ovulation is the release of an egg from the ovary, a key part of the menstrual cycle and fertility.
The authors said the findings are from an early proof-of-concept analysis and that larger, longer-term studies will be needed to confirm whether the reproductive benefits last.
The findings suggest injectable semaglutide may become a treatment option for women with PMOS seeking improvements in both metabolic and reproductive health, if future studies confirm the results.
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