"This is the first time a type of plant used to produce the protein to be injected to humans,"
said Dr. Ron Levy of Stanford University School of Medicina in California, whose research is published in the journal Proceedings of the National Academy of Sciences.
"This will be a way to cure cancer without impact," said Levy.
Levy's team tested the vaccine on 16 patients recently diagnosed with follicular B-cell lymphoma, chronic disease that can not be treated.
According to the study, no patient underwent a striking impact and more than 70% of these patients developed an immune reaction.
Although they were not sure whether the immune response is sufficient to destroy the cancer, the researchers hope the technique could someday lead to treatment at least some kind of deadly disease.
"Every patient's lymphoma memilki their targets on tumor cells but each patient's tumor has a different version of the target, "said Levy in an interview.
Finding the appropriate target genes requires cloning of tumor patients.
Researchers scratch tobacco leaves with a virus that bandaged gene to infect these plants, which produced antibodies to proteins that are also seen in tumor patients. Leaves were harvested several days later and pounded a green powder. From the leaves, the anti-bodies were taken and clarified. Material is then injected back into the patient, said Levy.
"This technology is special because it is fast and very suitable for certain that this particular approach because each plant can make (vaccines) that humans are different," said Levy told AFP.
This is the first cancer vaccine from plants have been tested in humans.
Vaccines derived from plants have a number of advantages. The vaccine can be developed much faster and much cheaper. The vaccine does not contain the risk of infection if contaminated with animal cells.
And the resulting antibodies can also cause a stronger immune response compared with that developed in animal cells.
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