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Home » News & Events » News Releases

News Releases

Media Advisory

Tuesday, September 5, 2017

Zika virus selectively infects and kills glioblastoma cells in mice

Fortaleza-strain Zika under microscope Transmission electron microscope image of negative-stained, Fortaleza-strain Zika virus (red), isolated from a microcephaly case in Brazil.National Institute of Allergy and Infectious Diseases (NIAID)

WHAT:

The Zika virus (ZIKV) may infect and kill a specific type of brain cancer cells while leaving normal adult brain tissue minimally affected, according to a new study supported by the National Institute of Allergy and Infectious Diseases (NIAID), a part of the National Institutes of Health. In the paper, published online on September 5 in The Journal of Experimental Medicine, researchers describe the impact of ZIKV on glioblastoma cells in both human tissue samples and mice.

Even with current treatments, patients with glioblastomas — a highly malignant type of brain tumor — tend to have poor survival rates. Glioblastomas grow aggressively from a mass of unspecialized cells; ZIKV is known to infect similar cells in the nervous systems of developing fetuses. A fetus that acquires the virus from its ZIKV-infected mother during pregnancy can develop microcephaly and other serious abnormalities.

In this laboratory study, researchers at the University of California San Diego School of Medicine, the Cleveland Clinic, the Washington University School of Medicine in St. Louis, and the University of Texas Medical Branch in Galveston introduced ZIKV to glioblastoma tissue samples removed from cancer patients as part of their treatment, as well as to healthy human neural tissue cultures. After seven days, the researchers found that ZIKV had replicated in certain glioblastoma cells and prevented them from multiplying, while the ordinary neural tissue cultures remained largely uninfected. The researchers also tested mice with glioblastomas, treating an experimental group with a mouse-adapted strain of ZIKV. Mice who received ZIKV survived longer than mice in the control group, and their tumors were significantly smaller than those in the control mice after one week.

The researchers caution that ZIKV may behave differently when introduced to an active glioblastoma in a living person. Even if further studies continue to yield promising results, any potential treatment derived from ZIKV would need many years of rigorous testing for safety and efficacy.

Additional support for this study was provided in part by the National Cancer Institute and the National Institute of Neurological Disorders and Stroke, both part of NIH.

ARTICLE:

Z Zhu et al. Zika virus has oncolytic activity against glioblastoma stem cells. The Journal of Experimental Medicine. DOI: https://doi.org/10.1084/jem.20171093 (2017).

WHO:

NIAID Director Anthony S. Fauci, M.D., and Mark Challberg, Ph.D., program officer in the Virology Branch of NIAID’s Division of Microbiology and Infectious Diseases, are available to comment on this study.

CONTACT:

To schedule interviews, please contact Elizabeth Deatrick, (301) 402-1663, elizabeth.deatrick@nih.gov.

NIAID conducts and supports research—at NIH, throughout the United States, and worldwide—to study the causes of infectious and immune-mediated diseases, and to develop better means of preventing, diagnosing and treating these illnesses. News releases, fact sheets and other NIAID-related materials are available on the NIAID website. 

About the National Institutes of Health (NIH): NIH, the nation's medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. NIH is the primary federal agency conducting and supporting basic, clinical, and translational medical research, and is investigating the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visit www.nih.gov.

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Institute/Center

National Institute of Allergy and Infectious Diseases (NIAID)

Contact

Elizabeth Deatrick
301-402-1663

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