According to a World Health Report, over 8 million people are killed annually by some form of cancer. However, scientists have recently discovered an ingredient in extra-virgin olive oil that kills cancer cells without harming healthy cells. The ingredient, called oleocanthal, contains a compound that ruptures cancerous cells, which in turn causes the release of certain enzymes that kill the cancer cell itself.
According to principal investigators Paul Breslin, professor of nutritional sciences in the School of Environmental and Biological Sciences, and David Foster and Onica LeGendre of Hunter College, oleocanthal kills cancerous cells in laboratory cultures by rupturing the cells’ waste-storage structures, called vesicles.
The researchers discovered that the cancer cells treated with oleocanthal were dying very quickly—within 30 minutes to an hour, compared to a programmed cell death of between 16 and 24 hours.
Prior to this study, scientists knew that oleocanthal killed some cancer cells, but didn’t know exactly how. “We needed to determine if oleocanthal was targeting that protein and causing the cells to die,” Breslin said.
As it turns out, the cancer cells’ enzymes were killing the cells by exposing them to their own waste products after the cell walls were punctured by the oleocanthal. “Once you open one of those things, all hell breaks loose,” Breslin said. In contrast, the oleocanthal didn’t harm healthy cells, but instead “put them to sleep,” temporarily, Breslin said.
The next step in the process is for the researchers to replicate their results in living animals, and: “We also need to understand why it is that cancerous cells are more sensitive to oleocanthal than non-cancerous cells,” Foster said.
“Research now shows that many of olive oil’s health benefits may actually come from the more than 30 plant compounds it contains. These compounds’ antioxidant and anti-inflammatory effects promote heart health and protect against cancer,” wrote Karen Collins, MS, RD, and CDN, with the American Institute for Cancer Research. “Olive oil compounds also increase enzymes that block activation of carcinogens and improve their removal from the body. These compounds appear to slow development of cancer cells and increase their self-destruction.”
In many Mediterranean countries, high rates of olive oil consumption have been correlated with lower cancer rates, making olive oil important for preserving a healthy and relatively disease-free population.
This study represents only the latest in a long history of groundbreaking disease research being conducted at prestigious Rutgers University. Researchers at Rutgers are among the top-funded and most active researchers in the world, and their funding reflects this fact.
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