Health
New cancer therapy hunts and destroys deadly tumors in major breakthrough study
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Scientists at UCLA have developed an “off-the-shelf” cell-based immunotherapy that was able to track down and kill pancreatic cancer cells even after they had spread to other organs.
In a mouse study, the treatment slowed cancer growth, extended survival and remained effective even within the harsh environment of solid tumors.
“Even when the cancer tries to evade one attack pathway by changing its molecular signature, our therapy is hitting it from multiple other angles at the same time. The tumor simply can’t adapt fast enough,” lead author Dr. Yanruide Li, a post-doctoral scholar at UCLA, said in a press release.
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To build the therapy, researchers took human stem cells and turned them into a special type of immune cell called an invariant natural killer T cell (or NKT cell).
Next, they genetically modified those cells by adding a CAR receptor (chimeric antigen receptor), which enables the cells to recognize and attack pancreatic cancer cells.
UCLA scientists created an off-the-shelf CAR-NKT cell therapy that killed pancreatic tumors in multiple pre-clinical models. (iStock)
NKT cells are naturally compatible with any immune system, which means they can enter the body without causing dangerous reactions, according to the researchers. They can also be mass-produced using any donated blood stem cells.
“One donor could provide sufficient cells for thousands of treatments,” potentially offering a more affordable and accessible approach, according to the press release.
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The team tested the therapy in several lab models. These included models where the cancer was placed directly into the pancreas and others designed to mimic how the disease spreads to other organs, like the liver and lungs.
The CAR-NKT cells were able to push their way into the tumor itself, rather than getting stuck on the outside like many immune treatments do, the researchers found.
Researchers emphasized that one dose could cost around $5,000, far lower than personalized CAR-T treatments. (iStock)
Once they got inside the body, these engineered immune cells could spot cancer cells in several different ways and kill them using multiple built-in attack methods.
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Most importantly, they stayed active. Many immune cells that enter a solid tumor quickly become overwhelmed and shut down, but these engineered cells kept working instead of burning out, allowing them to continue fighting the cancer for a longer period.
The findings were published in the journal PNAS (Proceedings of the National Academy of Sciences).
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“Developing a therapy that targets both the primary tumor and its metastases in pre-clinical studies — one that can be ready to use off-the-shelf — represents a fundamental shift in how we might treat this disease,” said senior author Dr. Lili Yang, a professor of microbiology, immunology and molecular genetics at UCLA, in the same press release.
The researchers noted that one dose could cost around $5,000, far lower than personalized CAR-T treatments.
The therapy can be mass-produced from donor stem cells, potentially lowering cost and expanding access. (iStock)
Pancreatic cancer is notoriously aggressive and difficult to treat, according to the researchers. Most patients aren’t diagnosed until the disease has already spread, and the tumor’s biology creates multiple physical and chemical barriers that weaken the impact of traditional treatments.
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Since the therapy targets a protein that is common in breast, ovarian and lung cancers, the same cell product could potentially treat multiple cancer types.
In separate studies, the team has already demonstrated the therapy’s effectiveness against triple-negative breast cancer and ovarian cancer.
Most patients aren’t diagnosed until the disease has already spread, and the tumor’s biology creates multiple physical and chemical barriers that weaken the impact of traditional treatments. (iStock)
Based on the early findings, the UCLA researchers are preparing to submit applications to the Food and Drug Administration to begin human trials.
“We’ve developed a therapy that’s potent, safe, scalable and affordable,” Yang said in the release. “The next critical step is proving it can deliver the same results in patients we’ve seen in our preclinical work.”
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All testing so far has been done in mice, as the researchers noted that solid tumors in humans are far more complex. Human tumors can evolve and lose the targets that treatments are designed to recognize, raising the risk of the cancer escaping detection and continuing to grow.
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Long-term safety and side effects in humans are unknown ahead of clinical trials.
The researchers also noted that making big batches of identical, safe cells poses logistical and regulatory challenges.
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Simple measurements taken during routine blood pressure checks could predict dementia risk years before symptoms appear.
That’s according to new research presented this week at the American College of Cardiology’s Annual Scientific Session in Louisiana.
The findings draw on two studies led by researchers at Georgetown University, which suggest that monitoring how blood vessels age and stiffen over time can provide a window into future cognitive health.
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Data shows rates of dementia and aging-related cognitive decline are expected to increase as populations age, and half of U.S. adults have high blood pressure (hypertension).
Scientists believe that efforts to better address hypertension, a key contributor to heart disease and a risk factor for dementia, could affect both cardiac and brain health.
Data shows rates of dementia and aging-related cognitive decline are expected to increase as populations age. Meanwhile, half of U.S. adults have high blood pressure. (iStock)
“Blood pressure management isn’t just about preventing heart attacks and strokes; it may also be one of the most actionable strategies for preserving cognitive health,” Dr. Newton Nyirenda, the study’s lead author and an epidemiologist at Georgetown University in Washington, said in a press release.
The research focused on two metrics, the pulse pressure-heart rate index and estimated pulse wave velocity. Both were calculated using data collected during standard doctor visits, such as heart rate, age and blood pressure.
“Blood pressure management isn’t just about preventing heart attacks and strokes; it may also be one of the most actionable strategies for preserving cognitive health.”
Researchers examined five years of data patterns for more than 8,500 people in the SPRINT trial, a large study of adults 50 years and older with hypertension. In the follow-up, 323 of the participants developed probable dementia.
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In one study, the team found the pulse pressure-heart rate index was a strong independent predictor of dementia risk in adults over 50. For participants under 65, every one-unit increase was associated with a 76% higher risk of developing dementia.
For participants under 65, an increase in the pulse pressure-heart rate index was associated with a 76% higher risk of developing dementia. (iStock)
The second study found that adults with consistently elevated or rapidly increasing pulse wave velocity were more likely to develop dementia than those with stable velocity, even after accounting for factors like smoking, gender and cardiovascular history.
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“Our findings suggest that vascular aging patterns may provide meaningful insight into future dementia risk,” said Nyirenda. “This reinforces the idea that managing vascular health earlier in life may influence long-term brain health.”
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The team emphasized that clinicians should tailor risk assessments and treatment strategies to the individual.
Further studies are needed to confirm these parameters and determine whether changing vascular aging trajectories reduces dementia risk. (iStock)
“You don’t want to wait until a patient starts manifesting cognitive decline before you act,” said senior study author Sula Mazimba, an associate professor at the University of Virginia.
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Researchers noted the study could not establish causation. Other limitations included the fact that participants already had hypertension and elevated cardiovascular risk, meaning the findings may not apply to people without those conditions.
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Further studies are needed to confirm these findings and to determine whether improving blood vessel health over time could reduce dementia risk.
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A dangerous substance dubbed “gas station heroin” continues to alarm medical professionals, with more states making moves to restrict or ban tianeptine.
Fourteen states have officially classified the tricyclic antidepressant as a Schedule I controlled substance.
Connecticut is the latest state to crack down, officially banning the sale and use of the substance starting on Wednesday.
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Tianeptine, which can produce euphoria in higher doses, can be more potent than morphine and addictive opioids, according to the U.S. Food and Drug Administration.
Some countries have taken steps to restrict how tianeptine is prescribed or dispensed, and have even revised the labels to warn people of its potential addictive qualities.
Tianeptine can be more potent than morphine and addictive opioids. (iStock)
Misuse of tianeptine can cause severe adverse health effects, including respiratory depression, severe sedation and death, according to the Drug Enforcement Administration.
Some companies market the drug as an aid for pain, anxiety and depression, or as a means of improving mental alertness in a pill, powder, salt or liquid form.
The products are typically sold at convenience stores, gas stations, vape shops and online retailers, and go by names like Tianaa, ZaZa, Neptune’s Fix, Pegasus and TD Red.
Connecticut is the 15th state to classify tianeptine as a Schedule I controlled substance. (Markus Scholz/picture alliance via Getty Images)
Connecticut Lt. Gov. Susan Bysiewicz said in a press release that the schedule change is a necessary step to combat addiction.
“With false marketing that led consumers to believe these are safe products, and with candy-like flavor options, these substances posed a clear threat to those battling substance-use disorder and our youngest residents,” she added.
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The Nutmeg State also added Mitragyna speciosa (kratom), 7-hydroxymitragynine, Bromazolam, Flubromazolam, Nitazenes and Phenibut to the schedule classification.
Earlier this month, FDA Commissioner Martin Makary penned a letter sounding the alarm on what he called a “dangerous and growing health trend.”
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“I am very concerned,” Makary wrote. “I want the public to be especially aware of this dangerous product and the serious and continuing risk it poses to America’s youth.”
New York-based Robert Schwaner, M.D., vice chair of system clinical affairs at Stony Brook Emergency Medicine, told Fox News Digital that the FDA has never approved tianeptine as a dietary supplement.
“As with heroin and other opioids, significant mu-opioid receptor stimulation ultimately results in a loss of respiratory drive and subsequent cardiac arrest.” (Dekalb County Sheriff’s Office)
“The euphoria at low doses is primarily due to increased serotonergic activity from its serotonin reuptake effects. With increasing doses, the mu-opioid receptor stimulation may become lethal,” said Schwaner. “As with heroin and other opioids, significant mu-opioid receptor stimulation ultimately results in a loss of respiratory drive and subsequent cardiac arrest.”
Schwaner said he believes the substance requires national regulation due to its addictive qualities.
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“Acting at the same receptor as opioids, tianeptine has the potential for an individual to develop tolerance, subsequent dependence and withdrawal from its use,” he cautioned.
Fox News Digital reached out to the FDA for comment.
Fox News Digital’s Greg Wehner and Melissa Rudy contributed to this report.
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