“Local delivery of therapeutic agents into the breast, through intra-nipple injection, could diminish the side effects typically observed with systemic chemotherapy—where the toxic drugs pass through all of the tissues of the body,” said Dr. Silva Krause, one of the researchers behind the experiment, “It also prevents drug breakdown by the liver, for example, which can rapidly reduce effective drug levels.”
According to Silva, she and her colleagues have already begun experimentation in applying the method. “The authors have utilized this technique to inject a new nanoparticle-based therapeutic that inhibits a specific gene that drives breast cancer formation,” said Silva, “This targeted treatment was shown to prevent cancer progression in mice that spontaneously develop mammary tumors, [and] is currently in review in Science Translational Medicine.”
In order to better communicate their procedure, Silva and her colleagues decided to publish with JoVE. “Because the reader can actually watch the process and see how reagents, instruments, and animals are physically handled over time, the likelihood of reproducing this method in their own labs is greatly enhanced,” Silva said. “We believe this will help spread this new technical capability to many labs who are carrying out breast cancer research.”
source : http://www.sciencedaily.com/releases/2013/10/131004104756.htm