Implantable device offers continuous cancer monitoring
Surgical removal of a tissue sample is now the standard for diagnosing cancer. Such procedures, known as biopsies, are accurate but only offer a snapshot of the tumor at a single moment in time.
Monitoring a tumor for weeks or months after the biopsy, tracking its growth and how it responds to treatment, would be much more valuable, says Michael Cima, MIT professor of materials science and engineering, who has developed the first implantable device that can do just that.
Cima and his colleagues recently reported that their device successfully tracked a tumor marker in mice for one month. The work is described in a paper published online in the journal Biosensors & Bioelectronics in April.
Such implants could one day provide up-to-the-minute information about what a tumor is doing -- whether it is growing or shrinking, how it's responding to treatment, and whether it has metastasized or is about to do so.
"What this does is basically take the lab and put it in the patient," said Cima, who is also an investigator at the David H. Koch Institute for Integrative Cancer Research at MIT.
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