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NIH Funds Research into Differences in Glioblastoma between Males and Females – Health Essentials from Cleveland Clinic

September 18th, 2020 11:55 am

A team led by researchers from Case Western Reserve University School of Medicine and Cleveland Clinics Lerner Research Institute has secured $10.4 million over five years from the National Institutes of Health/National Cancer Institute to explore at the molecular level the differences in glioblastoma between males and females.

The researchers will delve into the genetics, epigenetics and cell biology of glioblastoma the most common and deadliest brain tumor in adults to better understand the physiologic processes which may lead to more personalized therapies.

The researchers have previously published research showing significant differences between the sexes in glioblastoma incidence, survival and some key molecular pathways. They found that glioblastoma is 60 percent higher in males than in females. In addition, females have a significant survival advantage over males with a median improved survival rate of up to 10 months. However, while these sex differences are understood, they are not yet considered when treating glioblastoma.

The research team is led by co-principal investigators Justin Lathia, Ph.D., of Cleveland Clinics Lerner Research Institute, and Jill Barnholtz-Sloan, Ph.D., of Case Western Reserve University School of Medicine. The team also includes colleagues from Penn State College of Medicine, Washington University School of Medicine in St. Louis, and the Translational Genomics Research Institute (TGen).

Glioblastomas are rare about 3.5-4 per 100,000 in the United States from 2012-16, the most recent data available from the Central Brain Tumor Registry of the United States (CBTRUS). Despite available treatments, glioblastomas have devastating consequences for patients. The median survival time is 12 to 14 months, and only about 5% of patients survive more than five years.

We have the molecular profiling technology and the computing and analytical strength to lead in this effort to better understand the role of sex differences in cancer, particularly for glioblastoma, said Barnholtz-Sloan, the Sally S. Morley Designated Professor in Brain Tumor Research and associate director of Data Sciences at the Case Comprehensive Cancer Center, Case Western Reserve School of Medicine. This next phase of research relies on vast, varied and complex datasets in animals and humans and promises to be a game-changer in how we understand the role of sex in tumor formation and disease outcomes. This comprehensive approach has applications to all forms of cancer, as well as other diseases.

Sex differences are inherent drivers of glioblastoma incidence and survival, and we are taking a multidimensional approach to uncover a better understanding of this differentiation, said Lathia, vice chair of the Department of Cardiovascular and Metabolic Sciences and co-director of the Brain Tumor Research & Therapeutic Development Center of Excellence at Lerner Research Institute, and co-leader of the Molecular Oncology Program at the Case Comprehensive Cancer Center. We are incorporating data from tumor cells and their surrounding micro-environment, as well as genetic programs responsible for tumor growth, and underlying epigenetic differences that may be responsible for sex differences. We aim to gain a better understanding of how these variables interrelate to better understand disease mechanism, which in turn defines better diagnostics and more personalized therapies for patients.

The multi-disciplinary project involves established investigators with complementary expertise and a strong collaborative history. Along with Lathia and Barnholtz-Sloan, participating institutions and their PIs include:

Three related research projects, undertaken by this collaborative team, will delve into the basic biology and cellular mechanisms that drive sex differences in glioblastoma formation and progression. These related research projects will inform, synergize and depend on each other. Findings from the labs based on their animal models will then be queried against data from human clinical samples across multiple institutions. The vast amount of data generated from these studies requires robust data management and sophisticated data analysis for a comprehensive view of sex differences across these diverse but related inquiries.

Comprehensive findings will inform future clinical research design, the search for targets for new therapeutics, or the use of existing therapeutics that may be applied differently depending on a patients sex.

This grant was made by the NIHs National Cancer Institute. Grant number: 1P01CA245705.

Cleveland Clinic: Alicia Reale, 216-408-7444, Realeca@ccf.org

Case Western Reserve: Bill Lubinger, 216-368-4443, william.lubinger@case.edu

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NIH Funds Research into Differences in Glioblastoma between Males and Females - Health Essentials from Cleveland Clinic

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