Facts about Zika Virus: A Potential Breakthrough in Cancer Treatment

Introduction:

The Zika virus, infamous for its impact on human health since its identification in 1947, is now taking center stage in a surprising role: battling cancer. A recent study, published on January 9 in Cancer Research Communications, revealed promising results as scientists utilized the Zika virus to treat mice implanted with cells from human neuroblastoma tumors, a form of nerve-tissue cancer.

The Remarkable Study:

In this groundbreaking study, researchers injected the Zika virus into mice with neuroblastoma tumors, leading to nearly complete tissue death in the tumors and a significant increase in the animals' survival rates. Joseph Mazar, a research scientist at Nemours Children Hospital and the study's first author, expressed his astonishment at the effectiveness of the treatment, stating, "The difference was stunning. We got 80% to 90% efficacy. The tumors were eradicated — single injection, no recurrence, no symptoms."

Viruses as Cancer Treatment:

Using viruses to combat cancer is not a new concept. Historical reports since the 1800s suggested improved health in some cancer patients following infections with viruses like influenza, hepatitis, measles, or smallpox. These cancer-targeting viruses, known as oncolytic viruses, have gained attention in recent decades due to advancements in genetic engineering techniques.

While only four viruses are currently approved as specific cancer treatments, ongoing clinical trials explore the potential of more virus-based therapies. The latest addition to this research is the Zika virus.

Why Zika?

The Zika virus, notorious for stunting brain growth in developing fetuses, is particularly adept at targeting immature nerve cells. Dr. Tamarah Westmoreland, a pediatric surgeon at Nemours Children Hospital and the study's senior author, and her team explored whether Zika could be harnessed to target neuroblastoma, a cancer originating from immature nerve cells and commonly diagnosed in infants.

Results and Future Prospects:

The study revealed that Zika consistently eradicated high-risk neuroblastoma tumors in mice without any evidence of recurrence. Notably, Zika infection did not cause significant side effects in the mice.

The researchers tested Zika on human patients' extracted neuroblastoma tumors in the lab, observing similar results as in the mice. Neuroblastomas expressing high levels of the protein CD24 were especially susceptible to Zika-induced cell damage and death.

Dr. Milan Chheda, director of neuro-oncology at Washington University in St. Louis, noted that the study's findings suggest broader applications of Zika's cell-killing effects across various cancer types.

While the treatment is not yet ready for human use, the researchers anticipate human trials within the next few years. The Zika virus, with its specific cell-targeting capabilities, holds promise as a safe alternative or additional cancer therapy, offering hope for patients facing the challenges of neuroblastoma and potentially other cancer types.

As Joseph Mazar stated, "[Zika] is unique in that it is a perfect storm. What you have is something that has incredible specificity, but for specific types of cells, and if it's not that kind of cell, it does virtually nothing." The future may hold a new frontier in cancer treatment, courtesy of the Zika virus.

Information collected from: LIVE SCIENCE (livescience.com)

Kew Words: Zika Virus, Disease, Health, Treatment, Cancer, Nipah Virus.