Grant Awarded to Develop Genetically Engineered Stem Cell Products to Fight Gastroesophageal Cancer

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NEW YORK, Nov. 9, 2022 /PRNewswire/ — The DeGregorio Family Foundation with support from the Torrey Coast Foundation Gastro Esophageal Investigator Network Initiative (GEMINI) has awarded $250,000 to Saar Gill, MD, PhD, of the University of Pennsylvania, to improve immunotherapy in gastroesophageal cancer by using the tools of genetic engineering to modify human blood-forming stem cells to produce highly specialized cancer-eating cells called Chimeric Antigen Receptor (CAR) macrophages. Depending on results, this grant funding could increase up to $1 million.

“While Chimeric Antigen Receptor T (CAR-T) cells have received FDA approvals for hematologic malignancies, their track record in solid tumors is disappointing,” notes Dr. Gill. “We reasoned that genetically engineered macrophages may be better suited to treat solid tumors since these cells are the major immune component in the tumor microenvironment (TME).”

Macrophages are normally produced from the bone marrow as monocytes, which travel around the bloodstream and lodge at sites of infection, inflammation and cancer. There, monocytes mature to become macrophages. The normal roles of macrophages include 1) to detect, engulf and destroy harmful organisms and 2) to serve as the body’s garbage disposal system by engulfing and breaking down old, faulty or dying cells.

This project brings together two technological innovations that were made in Dr. Gill’s lab and improves on both of them at the same time. They previously made CAR macrophages from blood monocytes and showed that they can be made to eat cancer cells in a targeted manner, but the resultant CAR macrophages have a limited lifespan. By implanting a CAR in stem cells that give rise to monocytes and subsequently macrophages, Dr. Gill is hoping to develop a lifelong supply of cancer-eating cells for the treatment of upper gastrointestinal and other malignances.

“This grant will allow me to develop a high-risk yet potentially high-reward cancer treatment paradigm,” said Dr. Gill. “This project combines two disparate innovations made in my lab in the last few years to make a new and hopefully synergistic therapeutic platform. There are relatively few funding bodies that have the foresight and courage to invest in such out-of-the-box concepts, and I look forward to repaying the Foundation’s trust in me.”  

In 2020, gastric and esophageal cancers combined kill over 1.3 million people worldwide. Patients continue to face poor prognoses following gastric and esophageal cancer diagnoses due to their chemo-resistant behavior and ability to metastasize.  

The DeGregorio Family Foundation, founded in 2006 after a 10th member of the DeGregorio family died of stomach cancer, has raised almost $8 million to fund innovative research focused on curing gastric and esophageal cancers. “We are proud to support the development of a new therapeutic platform for gastroesophageal cancer by Dr. Gill,” concluded Lynn DeGregorio, President and Founder.

Click here to donate.

SOURCE DeGregorio Family Foundation

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