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Stem cell therapy to correct heart failure in children could 'transform lives'

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Stem cell therapy to correct heart failure in children could 'transform lives'

Renowned visionary English physician William Harvey wrote in 1651 about how our blood contains all the secrets of life.

“And so I conclude that blood lives and is nourished of itself and in no way depends on any other part of the body as being prior to it or more excellent,” he wrote. “So that from this we may perceive the causes not only of life in general … but also of longer or shorter life, of sleeping and waking, of skill, of strength and so forth.”

Dr. Kevin Watt, team leader of the Heart Regeneration and Disease Laboratory at the Murdoch Children’s Research Institute (MCRI) in Melbourne, Australia, understands this concept deeply. 

STEM CELL RESEARCH SHOWING NEW POSSIBILITIES FOR TREATING INFANT HEART DISEASE

He lives it every day, as he and his fellow researchers study and reprogram the potential of the blood to treat disease, specifically heart failure in children. 

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Building on the work of Dr. Shinya Yamanaka of Japan, who discovered that specialized cells could be reprogrammed back to immature stem cells, Watt and his collaborators have taken this work several steps further. 

During upcoming clinical trials, “large sheets of heart tissue will be stitched into the failing heart,” said Dr. Kevin Watt, team leader of the Heart Regeneration and Disease Laboratory at Murdoch Children’s Research Institute (MCRI) in Melbourne, Australia.  (MCRI)

They have used small molecules to turn these new stem cells from the blood into heart cells.

Small heart organoids are developed in the lab — which can then be injected into the failing hearts of children. 

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Relying on the philanthropic support of the Murdoch Institute, the work is progressing rapidly and has been shown to be effective already in mice, pigs and sheep.

“The vision of our research is to develop new therapies that can transform the lives of children with heart failure.”

Clinical trials in humans will be starting soon, and as Dr. Watt told me in an interview from Australia, “Large sheets of heart tissue will be stitched into the failing heart.” 

Congenital heart failure as well as side effects of chemotherapy in children will be targets for this miracle therapy. Millions of children around the world suffer daily from these conditions. 

Researchers at MCRI are studying and reprogramming the potential of the blood to treat disease, specifically heart failure in children.  (MCRI)

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Watt said that certain chemotherapy (anthracyclines) have a higher risk of heart failure – up to 15% of the time – and this treatment may be useful to protect the heart.

Watt said, “Heart failure remains an urgent, unmet clinical challenge across the world. While we have made significant advances over several decades in managing the disease, we lack targeted therapies to treat these devastating conditions.”

FAMILY OF CHILD WITH DOWN SYNDROME WENT FROM SHOCK TO GRATITUDE: ‘LOST THE AIR IN MY CHEST’ 

He added, “More than 500,000 children around the world live with advanced heart failure that requires transplantation. The vision of our research is to develop new therapies that can transform the lives of children with heart failure.”

“More than 500,000 children around the world live with advanced heart failure that requires transplantation. The vision of our research is to develop new therapies that can transform the lives of children with heart failure.” (iStock)

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To achieve this, he said, “we use a technology called induced pluripotent stem cells, where we can convert blood or skin cells of patients with heart failure into stem cells that we then turn into heart cells … or even make engineered heart tissues that can be stitched onto the patient’s heart to help it pump.” 

The cells that are targeted in the blood are known as peripheral blood mononuclear cells (PBMCs). 

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They are “pushed back in time to an earlier time before they became differentiated into heart or kidney cells,” he said. 

Then they can be pushed forward to become healthy heart cells or mutations — or other abnormalities can be corrected.

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While the team at the Murdoch Children’s Research Institute is making heart cells from stem cells in the blood for clinical use, it’s also using these stem cells to figure out new drugs to treat heart failure directly.  

The team at MCRI in Melbourne (shown above) is pioneering “methods to turn stem cells into miniature heart tissues.” (MCRI)

Said Watt, “Using stem cells from patients with heart failure caused by chemo, we are actively developing new drugs and cell-based treatments that we believe will transform the lives of patients with these conditions … Our research group has pioneered methods to turn these stem cells into miniature heart tissues that can be used to model disease-in-a-dish, to identify new drug targets for the development of new therapies.”

These treatments are personalized and highly expensive, but they’re also highly effective. 

“Using stem cells from patients with heart failure caused by chemo, we are actively developing new drugs and cell-based treatments that we believe will transform the lives of patients with these conditions.” (MCRI)

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Correcting heart failure in young children is only a few years away from becoming a reality. 

It’s a Christmas miracle that relies on the kind of philanthropic support that MCRI is famous for arranging.

 

“Philanthropic support plays a critical role in accelerating the development of these new, transformative treatments,” said Watt, “and this support will be essential as we work toward bringing stem cell-based precision therapies for heart failure to every child who needs it.” 

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Visit go.fox/MCRI to donate or to learn more about MCRI’s important research.

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New cancer vaccine delivers stunning result against one of the deadliest skin cancers

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New cancer vaccine delivers stunning result against one of the deadliest skin cancers

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A new injectable therapy is showing positive results in reducing melanoma throughout a five-year period.

The personalized mRNA cancer therapy, called intismeran autogene, combined with the cancer immunotherapy drug KEYTRUDA (pembrolizumab), is a collaboration between Merck and Moderna.

The results from the phase 2b KEYNOTE-942 study were presented at the American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago on May 27.

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After about a five-year follow-up, the combo drug was found to reduce the risk of melanoma recurrence or death by 49% compared to pembrolizumab alone.

The researchers analyzed data from 157 patients with high-risk stage 3 and 4 melanoma whose cancer had been removed via surgery. The participants were split into two groups — one received the combo therapy and the other only received pembrolizumab, according to a press release.

The therapy was found to reduce the risk of melanoma recurrence or death by 49% compared to pembrolizumab alone after a five-year follow-up. (iStock)

The findings revealed that the combination group saw benefits that were “sustained and durable over time.”

Intismeran autogene is designed using mutations identified in a patient’s own tumor, with the intention of teaching the immune system what the cancer looks like so that it can recognize and attack it.

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According to the researchers, intismeran is “well-tolerated” with a “manageable” safety profile. 

The most commonly cited side effects of the personalized mRNA vaccine plus KEYTRUDA were fatigue, injection-site pain, chills, fever and headache. The researchers reported no new long-term safety concerns and no severe vaccine-related adverse events.

The combination therapy is currently being evaluated in a phase 3 study — the final confirmation stage.

Patients with late-stage melanoma have a “significant risk” of cancer recurrence, according to an expert. (iStock)

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In a Merck press release from January, Kyle Holen, MD, Moderna’s senior vice president and head of development, oncology and therapeutics, noted that this data highlights the “potential of a prolonged benefit … in patients with resected high-risk melanoma.”

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“We continue to invest in our platform in oncology because of encouraging outcomes like these, which illustrate mRNA’s potential in cancer care,” he said.  

Dr. Marjorie Green, senior vice president and head of oncology, global clinical development at Merck Research Laboratories, also commented that for many patients with stage 3 or 4 melanoma, there is a “significant risk of recurrence following surgery.”

Researchers confirmed that the combination therapy is currently being evaluated in a phase 3 study. (iStock)

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“As such, demonstrating the longer-term potential of intismeran autogene and KEYTRUDA to reduce the risk of recurrence for certain patients with melanoma is a meaningful milestone,” she said.

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The company cited encouraging five-year follow-up data and pointed to upcoming late-stage INTerpath trial results with Moderna in several hard-to-treat cancers.

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New ways to prevent flu revealed in ‘accidental’ lab breakthrough, study finds

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New ways to prevent flu revealed in ‘accidental’ lab breakthrough, study finds

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An accidental lab discovery has opened the door to entirely new ways of preventing the flu.

While investigating how influenza replicates, researchers discovered that different flu strains use completely different strategies to infiltrate human cells, SWNS reported.

By targeting the specific molecules the viruses rely on, scientists found that they could block them from entering new cells and halt their replication altogether.

5 THINGS YOU NEED TO KNOW BEFORE GETTING YOUR FLU SHOT, ACCORDING TO DOCTORS

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Researchers say these “fundamental insights” into seasonal influenza highlight a clear path toward developing better preventive medications.

“The hope is that fundamental, curiosity-based research like this helps to pave the way for novel strategies to treat and prevent influenza infections,” principal investigator Dr. Emily Bruce, from the University of Vermont’s Larner College of Medicine, said in the SWNS report.

While investigating how influenza replicates, researchers discovered that different flu strains use completely different strategies to infiltrate human cells. (iStock)

While several flu strains cause illness, H1N1 and H3N2 influenza A viruses are the most common. However, current flu tests cannot differentiate between them, and clinical treatments are identical for both.

Although vaccines and antivirals are available, Bruce noted a “dire” need for better medications to stop the virus from spreading cell to xxcell.

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“You don’t get sick when a virus is in one cell,” he noted. “You get sick because a virus replicates itself and goes into many more cells.”

HOW LONG YOU’RE CONTAGIOUS WITH THE FLU — AND WHEN IT’S SAFE TO GO OUT

The study, which was published in The Journal of Virology, originally aimed to map how viral RNA segments are transported within cells to create new viral particles.

The team used H1N1 and H3N2 viruses isolated from the nasal passages of positive patients in 2022.

Clinical treatments remain identical for both primary strains of the flu virus. (iStock)

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During the investigation, the team unexpectedly stumbled upon a cellular pathway that blocked the virus from entering lung cells, SWNS reported.

RESEARCHERS LOCKED FLU PATIENTS IN A HOTEL WITH HEALTHY ADULTS — NO ONE GOT SICK

The data revealed that when a specific human protein called Rab11B was depleted, H3N2 viruses failed to enter human lung cells. H1N1 viruses were completely unaffected.

Using reverse genetics, the team mapped this defect and uncovered a brand-new, H3N2-specific role for Rab11B during viral entry.

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This discovery challenged the scientific assumption that all flu viruses enter cells the same way.

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“Viruses are like pirates from different countries hijacking someone’s ship,” Bruce said. “Different viruses, like different types of pirates, use different methods to get onboard.”

This discovery challenged the scientific assumption that all flu viruses enter cells the same way. (iStock)

“We had previously thought that all flu viruses used the same way to get into a cell, but we discovered that this is not true,” she went on. “H1N1 and H3N2 need different proteins to get in, and if you get rid of the right protein, a specific virus can’t get in.”

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While these findings identify a critical cellular pathway for viral entry, the study was conducted using isolated cells, the researchers acknowledged.

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Further research is needed to determine whether blocking the protein is safe and effective within a live, complex human respiratory system.

Bruce and the team hope to conduct further research to determine whether this Rab11B-dependency is a fundamental property of H3N2, or if it’s a trait unique to currently circulating flu strains.

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One extra serving of processed meat a day linked to higher cancer risk

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One extra serving of processed meat a day linked to higher cancer risk

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Eating processed meat like ham, sausage and bacon may be linked to a higher risk of certain types of cancer, according to new research.

While health organizations have already confirmed that processed meat can contribute to colon cancer, this study looked closer at cancers in the upper digestive tract, where the link has historically been less clear.

To understand these connections, researchers from the European Prospective Investigation into Cancer and Nutrition (EPIC), one of the world’s largest long-term nutrition and cancer cohorts, tracked the health and diets of 450,112 people across Europe for an average of 14 years. 

FREQUENT HEARTBURN MAY BE A WARNING SIGN OF A MORE DANGEROUS CONDITION, DOCTOR SAYS

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The study group included 131,426 men and 318,686 women, according to the study’s press release.

During the follow-up period, 876 people developed stomach cancer and 215 people developed esophageal adenocarcinoma, which is cancer of the tube connecting the mouth to the stomach.

For female participants, eating both processed meat and white meat was linked to an increased risk of developing the disease. (iStock)

Researchers tracked where the stomach cancers grew, separating them into the upper part of the stomach near the throat and the lower part of the stomach.

The researchers also sorted the tumors into two categories based on how the cancer cells appeared under a microscope: intestinal, which forms more organized structures, and diffuse, in which the cells are more scattered throughout the tissue.

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BACTERIA IN YOUR MOUTH MAY TRAVEL TO THE GUT AND TRIGGER STOMACH CANCER, RESEARCH FINDS

After adjusting for other lifestyle factors, the researchers found that for every extra 30 grams of processed meat a person ate per day, their overall risk of stomach cancer went up by 9%. Eating that same extra 30 grams a day was also linked to a 13% higher risk of esophageal adenocarcinoma.

A standard single slice of regular deli-sliced ham or lunch meat averages around 28 grams, according to USDA data and nutritional tracking databases.

An extra 20 grams of white meat, such as chicken and turkey, was linked to a 12% higher risk of cancer in the main body of the stomach. (iStock)

An extra 20 grams of white meat, such as chicken or turkey, was linked to a 12% higher risk of cancer in the main body of the stomach, the researchers noted.

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The study also revealed differences between men and women. For male participants, only processed meat showed a clear, statistically significant link to a higher risk of stomach cancer. For female participants, however, eating both processed meat and white meat was linked to an increased risk.

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These findings align with global health benchmarks, particularly those established by the World Health Organization’s International Agency for Research on Cancer.

The agency has long classified processed meat as a known human carcinogen, primarily due to its strong, well-documented links to colorectal cancer.

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However, health organizations have also consistently pointed to a potential, yet less definitive, relationship between these meats and cancers of the stomach.

Eating 30 grams of processed meat a day, or the equivalent to one slice of ham, was linked to a 13% higher risk of esophageal adenocarcinoma. (iStock)

Further scientific investigation is needed to confirm the findings and to account for other underlying risk factors, such as certain stomach infections, which could interact with dietary habits.

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A key limitation of the study is its reliance on self-reported diets, which can sometimes lead to inaccuracies in how participants recall their meat consumption over time, the researchers noted.

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The findings were published in the International Journal of Cancer.

Fox News Digital reached out to the researchers requesting comment.

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