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American Focus > Blog > Tech and Science > Common Parasite Rips The Face From Your Cells to Wear as a Disguise : ScienceAlert
Tech and Science

Common Parasite Rips The Face From Your Cells to Wear as a Disguise : ScienceAlert

Last updated: May 18, 2025 6:20 am
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Common Parasite Rips The Face From Your Cells to Wear as a Disguise : ScienceAlert
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New Study Reveals How Entamoeba Histolytica Uses Cell Bites as a Disguise

A recent study has shed light on how the parasitic amoeba Entamoeba histolytica employs a unique strategy to evade the immune system. By taking bites from human cells, the amoeba disguises itself, making it harder for the body’s defenses to detect and eliminate it.

Entamoeba histolytica typically enters the body through contaminated food or water, causing symptoms such as diarrhea. In severe cases, the parasite can travel through the bloodstream to vital organs, leading to potentially life-threatening complications.

Microbiologist Katherine Ralston, who conducted the research at the University of Virginia in 2011, discovered that rather than injecting toxins into host cells, E. histolytica physically consumes parts of human cells. This unique behavior helps the parasite gather outer membrane proteins from the cells, which it then uses to create a protective shield on its own surface.

According to Ralston, this disguises the amoeba from the immune system, allowing it to evade detection and continue its destructive behavior. The study found that E. histolytica can even consume white blood cells, which are responsible for combating intruders in the body.

By presenting human proteins on its surface, such as CD46 and CD55, the amoeba tricks the immune system into perceiving it as safe, preventing an immune response that would normally target foreign invaders. This clever disguise enables E. histolytica to form abscesses in the organs it infects, leading to further damage.

Interestingly, the researchers also found that the disguise created by E. histolytica was effective even when exposed to mouse blood serum, indicating similarities between human and mouse immune systems. This discovery opens up new possibilities for studying treatments and vaccines for the parasite using mouse models before progressing to human trials.

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Ralston emphasizes the importance of building upon existing knowledge to develop new treatments, highlighting the iterative nature of scientific research. The study, although not yet peer-reviewed, is available as a pre-print on bioRxiv.

In recent times, there has been a surge in the popularity of sustainable living and eco-friendly practices. As people become more aware of the impact of their actions on the environment, they are looking for ways to reduce their carbon footprint and live a more sustainable lifestyle. One trend that has emerged in response to this is the zero-waste movement.

The zero-waste movement is a lifestyle choice that aims to reduce the amount of waste produced by individuals in their everyday lives. This includes minimizing the use of single-use plastics, opting for reusable products, composting organic waste, and recycling as much as possible. The ultimate goal of zero-waste living is to send as little waste to landfills as possible, ideally none at all.

There are many benefits to adopting a zero-waste lifestyle. Not only does it help reduce the amount of waste that ends up in landfills, but it also helps conserve resources, reduce greenhouse gas emissions, and protect wildlife and ecosystems. By choosing products with minimal packaging, buying in bulk, and bringing reusable bags and containers when shopping, individuals can significantly reduce their environmental impact.

One of the key principles of the zero-waste movement is the concept of “refuse, reduce, reuse, recycle, rot.” This means refusing unnecessary items, reducing consumption, reusing products as much as possible, recycling materials that can be recycled, and composting organic waste. By following these principles, individuals can significantly decrease their waste output and live a more sustainable lifestyle.

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There are many simple changes that individuals can make to reduce their waste production. This includes using a reusable water bottle, bringing a reusable coffee cup, using cloth bags instead of plastic ones, buying products in bulk, and composting food scraps. By making these small changes, individuals can make a big difference in reducing their environmental impact.

The zero-waste movement is gaining momentum around the world as more and more people become aware of the importance of living sustainably. By making conscious choices about the products they use and the waste they produce, individuals can play a significant role in protecting the planet for future generations. Zero-waste living is not only good for the environment, but it can also lead to a more fulfilling and mindful way of life.

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