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Home Science News Cancer

Genetically engineering a treatment for incurable brain tumors

April 22, 2024
in Cancer
Reading Time: 5 mins read
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Sandro Matosevic Purdue University
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WEST LAFAYETTE, Ind. — Purdue University researchers are developing and validating a patent-pending treatment for incurable glioblastoma brain tumors. Glioblastomas are almost always lethal with a median survival time of 14 months. Traditional methods used against other cancers, like chemotherapy and immunotherapy, are often ineffective on glioblastoma. 

Sandro Matosevic Purdue University

Credit: Purdue University photo/Shambhavi Borde

WEST LAFAYETTE, Ind. — Purdue University researchers are developing and validating a patent-pending treatment for incurable glioblastoma brain tumors. Glioblastomas are almost always lethal with a median survival time of 14 months. Traditional methods used against other cancers, like chemotherapy and immunotherapy, are often ineffective on glioblastoma. 

Sandro Matosevic, associate professor in the Department of Industrial and Molecular Pharmaceutics in Purdue’s College of Pharmacy, leads a team of researchers that is developing a novel immunotherapy to be used against glioblastoma. Matosevic is also on the faculty of the Purdue Institute for Cancer Research and the Purdue Institute for Drug Discovery.

The Matosevic-led research has been published in the peer-reviewed journal Nature Communications.

The Purdue glioblastoma treatment

Matosevic said traditional cell therapies have almost exclusively been autologous, meaning taken from and returned to the same patient. Blood cells from a patient are engineered to better recognize and bind to proteins on cancer cells, then given back to the same patient to bind to and attack cancer cells. Unfortunately, these therapies have limited to no effect on glioblastoma. 

“By contrast, we are developing immunotherapy based on novel, genetically engineered, fully off-the-shelf or allogeneic immune cells. Allogeneic cells are not sourced from the same patient, but rather another source,” Matosevic said. “In our study, we sourced — or rather engineered — cells from induced pluripotent stem cells. So we eliminated the need for blood and instead differentiated stem cells into immune cells, or natural killer cells, and then genetically engineered those.”

Matosevic said novel Purdue immunotherapy can be considered to have a true off-the-shelf source.

“We can envision having unlimited supplies of these stem cells ready to be engineered,” Matosevic said. “This does not require blood to be sourced. And because these are human cells, they are directly usable in human patients.” 

Validation and next development steps

The research team tested its treatment by conducting animal studies with mice bearing human brain tumors, which were treated by direct injection of the newly engineered immune cells.

“Our preclinical studies showed these immune cells to be particularly remarkable in targeting and completely eliminating the growth of the tumors,” Matosevic said. “We found that we can engineer these cells at doses suitable for clinical use in humans. This is significant because one of the major hurdles to clinical translation of cell-based therapies to humans has been the poor expansion and lack of potency of cells that were sourced directly from patients. Using an off-the-shelf, fully synthetic approach breaks down significant barriers to the manufacturing of these cells.”

Matosevic said the next step to develop the glioblastoma treatment is to conduct clinical trials to treat patients with brain tumors, including those that were not successfully eliminated by surgery.

“Our ultimate goal is to bring this therapy to patients with brain tumors,” Matosevic said. “These patients urgently deserve better, and more effective, treatment options. We believe there is true potential for this therapy, and we have the motivation and capacity to bring it to the clinic.

“We are working with neurosurgical clinician collaborators to not only obtain funding, but also initiate clinical protocols,” he added. “We are also open to and always seeking new collaborations and partnerships with those who have interest in supporting our mission to translate this therapy to the clinic, where it is needed the most.”

Matosevic disclosed the innovative glioblastoma treatment to the Purdue Innovates Office of Technology Commercialization, which has applied for a patent from the U.S. Patent and Trademark Office to protect the intellectual property. Inquiries about the status of the intellectual property may be directed to Joe Kasper, assistant director of business development and licensing — life sciences, at jrkasper@prf.org.

Matosevic and the research team received funding from the National Institutes of Health, the V Foundation for Cancer Research, the Purdue Institute for Cancer Research and industry partners.

About Purdue Innovates Office of Technology Commercialization 

The Purdue Innovates Office of Technology Commercialization operates one of the most comprehensive technology transfer programs among leading research universities in the U.S. Services provided by this office support the economic development initiatives of Purdue University and benefit the university’s academic activities through commercializing, licensing and protecting Purdue intellectual property. In fiscal year 2023, the office reported 150 deals finalized with 203 technologies signed, 400 disclosures received and 218 issued U.S. patents. The office is managed by the Purdue Research Foundation, which received the 2019 Innovation & Economic Prosperity Universities Award for Place from the Association of Public and Land-grant Universities. In 2020, IPWatchdog Institute ranked Purdue third nationally in startup creation and in the top 20 for patents. The Purdue Research Foundation is a private, nonprofit foundation created to advance the mission of Purdue University. Contact otcip@prf.org for more information. 

About Purdue University

Purdue University is a public research institution demonstrating excellence at scale. Ranked among top 10 public universities and with two colleges in the top four in the United States, Purdue discovers and disseminates knowledge with a quality and at a scale second to none. More than 105,000 students study at Purdue across modalities and locations, including nearly 50,000 in person on the West Lafayette campus. Committed to affordability and accessibility, Purdue’s main campus has frozen tuition 13 years in a row. See how Purdue never stops in the persistent pursuit of the next giant leap — including its first comprehensive urban campus in Indianapolis, the new Mitchell E. Daniels, Jr. School of Business, and Purdue Computes — at https://www.purdue.edu/president/strategic-initiatives.

Writer/Media contact: Steve Martin, sgmartin@prf.org

Source: Sandro Matosevic, sandro@purdue.edu



Journal

Nature Communications

DOI

10.1038/s41467-024-46343-3

Article Title

synNotch-programmed iPSC-derived NK cells usurp TIGIT and CD73 activities for glioblastoma therapy

Article Publication Date

1-Mar-2024

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