Topic: Medicine
Scientists at Stanford Medicine have found a way to make immune cells called natural killer cells more effective against solid tumors. They modified these cells so they can move into solid tumors and destroy cancer cells. This new treatment could be a game-changer for cancer patients.
Cell therapies that use the immune system have helped treat some blood and lymphatic cancers. But solid tumors are harder to fight because it's difficult for immune cells to enter them. Researchers at Stanford Medicine wanted to find a way to overcome this challenge.
They transformed natural killer cells, which are known for quickly attacking abnormal cells, into tissue-resident form. This means they can move into solid tumors and destroy cancer cells more effectively. The team tested the new therapy in mice and found that it slowed down the growth of several types of solid tumors. When paired with an antibody treatment, the effect was even stronger.
Natural killer cells have some advantages over other immune cell therapies. They don't usually trigger an immune reaction when transferred from one person to another. This means a treatment based on these modified natural killer cells could be produced in large batches and made available to many patients. "It would be almost an off-the-shelf drug," said John Sunwoo, MD.
Natural killer cells were first identified in the 1970s. They get their name from their ability to quickly recognize and destroy abnormal cells, including cancer cells and virus-infected cells. Unlike other white blood cells, natural killer cells don't need to encounter a specific target beforehand, which allows them to respond quickly.
The study's co-lead authors are Nina Horowitz, PhD, Imran Mohammad, PhD, and June Ho Shin, PhD. They used a multiomic approach to molecularly characterize the cytotoxic trNK cell population, characterized by the expression of CD39. These cells exhibited superior cytolytic activity against tumor target cells.
Why It Matters
This new treatment could be a game-changer for cancer patients in India and around the world. It's estimated that over 1 million people are diagnosed with cancer every year in India alone. A more effective treatment like this one could save countless lives.
Key Facts
- Scientists at Stanford Medicine have developed a new way to make natural killer cells more effective against solid tumors.
- The modified natural killer cells can move into solid tumors and destroy cancer cells more effectively.
- The team tested the new therapy in mice and found that it slowed down the growth of several types of solid tumors.
- Natural killer cells don't usually trigger an immune reaction when transferred from one person to another.
- A treatment based on these modified natural killer cells could be produced in large batches and made available to many patients.
Key Terms
- Tissue-resident natural killer cells
- Natural killer cells that live in specific tissues, such as the skin or lungs, and can move into solid tumors to destroy cancer cells.
Implications
This new treatment could be a game-changer for cancer patients in India and around the world. It's estimated that over 1 million people are diagnosed with cancer every year in India alone. A more effective treatment like this one could save countless lives.
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