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Home > Press > Curing Cancer with Magnetic Nanoparticles

Iron particles inside a tumor spin in an alternating magnetic field, generating enough heat to cook the cancer.
Iron particles inside a tumor spin in an alternating magnetic field, generating enough heat to cook the cancer.

Abstract:
Researchers are curing cancer in mice with magnetic nanoparticles, after a single, three-minute treatment.

Curing Cancer with Magnetic Nanoparticles

Yaphank, NY | Posted on December 4th, 2013

Nanoprobes, Inc. is a nanoparticle research collaborative, dedicated to finding cures for cancer and other diseases. Our technology is helping save lives around the world, at the core of the HER2 breast cancer test. Located in Yaphank, NY, our funding comes from research grants, and sales of nanoparticle products to the scientific community; all profits support our research.

Scientists at Nanoprobes, Inc. are heralding a major breakthrough in cancer research, using their new magnetic nanoparticles. After a quick intravenous injection and just three minutes inside a magnetic field, 80% of test animals are completely cured of cancer. Their spectacular results have just been published in The International Journal of Nanomedicine.

Six years of research were built on a simple idea: iron particles inside an alternating magnetic field will spin back and forth, and generate significant heat. If enough iron particles were delivered to a tumor, you could cook the cancer. For many years, however, researchers had been stymied by the toxic amount of iron required. To avoid poisoning the body, researchers had tried injecting iron particles directly into tumors, but areas missed would always regrow.

At Nanoprobes, a different approach held the key. Senior scientist Dr. James F. Hainfeld, one of the original fathers of the nanoparticle, decided to make the iron itself non-toxic. Together with colleague Hui Huang, he engineered a nanoparticle with an iron core and a biocompatible shell, which could safely be injected into the bloodstream. Sized to specifically leak out of newly-formed blood vessels in tumors, these iron nanoparticles will find and load cancerous tissue anywhere in the body, even targeting metastases.

The iron-laden cancer is then easily heated in a magnetic field; the tumors actually liquefy, while adjacent, healthy tissue stays cool and unharmed. Afterwards, the neutralized liquid is quickly absorbed by the body, while the nanoparticles break down slowly, allowing the iron to be safely assimilated. The research team has achieved a cure rate of 78-90% in mice, ablating tumors with an accuracy finer than a surgeon's knife.

It's also great news for combination therapy, where pre-treatment with heat (hyperthermia), greatly amplifies chemotherapy and radiation. Since magnetic fields easily pass through the human body, these iron nanoparticles will heat previously inaccessible, deep tumors. Brain cancer too is in their sights: where nothing else works, the lab has achieved highly specific iron loading of brain tumors. The precision of magnetic heating would vitally spare healthy brain tissue, compared to the collateral damage of radiation or surgery.

The National Institutes of Health recently granted the research group roughly a million dollars' worth of laboratory testing, in preparation for FDA approval. "We need to bring this to patients, as soon as possible," says Huang, now in medical school and soon to be treating patients himself. Nanoprobes is currently organizing funding for the clinical trials to come.

"After so many years in the trenches, I tend to be cautious," says Dr. Hainfeld, "but I've never seen such promising results. We're very hopeful." Because, he adds, "No one should ever have to hear, "There's nothing more we can do."

####

About Nanoprobes
Nanoprobes was founded in 1991 by Dr. James F. Hainfeld, along with a group of scientists who were also alumni of Brookhaven National Laboratory. The independent research facility they formed has allowed Dr. Hainfeld and his colleagues the freedom to pursue some of the greatest challenges in research: seeking cures for cancer and other diseases.

While part of the funding for these endeavors has come from research grants, another source had to be found, as the scientific community faces ever-increasing government cutbacks. To this end, Nanoprobes began to offer many of the nanoparticle technologies developed by its members for use in other scientists' research.

For more information, please click here

Contacts:
Dr. James F. Hainfeld
Phone: 631-205-9490 x105

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