"Wrong" type of connective tissue cells gives worse prognosis for breast cancer

In some cancers, connective tissue is formed around and within the tumor. A hypothesis, which has not been proven so far, is that there are several different types of connective tissue cells that have different functions and which can thus affect tumor development in different ways. But now a research group at Lund University has identified three different types of connective tissue cells, and in breast cancer patients studies found that two of these are linked to a worse forecast.