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Cancerous tumors deliver pro-metastatic information in secreted vesicles
Date:5/29/2012

expression, which can be easily analyzed in a simple blood test, could be used as a new marker of metastatic disease in melanoma patients."

The researchers then discovered two ways to reduce exosomal-induced metastasis. One way was to target the protein, Rab27a, responsible for production of exosomes. Another was to proactively educate BMDCs using exosomes spawned from melanoma cells that rarely metastasize.

"We have found that less or non-metastatic exosomal proteins may educate bone marrow cells not to avoid partaking in the metastatic process," says Dr. Lyden. "We are working on determining which particular exosomal proteins may be responsible for preventing metastatic participation.

"This concept may one day be applied to the clinic, where non-metastatic exosome proteins may help prevent the acceleration of tumor growth and metastatic disease, allowing patients with cancer to live longer lives," he says.


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Contact: Lauren Woods
law2014@med.cornell.edu
212-821-0560
New York- Presbyterian Hospital/Weill Cornell Medical Center/Weill Cornell Medical College
Source:Eurekalert

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