"But we now know that the neighborhood (stroma) that the cancer cells live in also plays a critical role in determining whether a cancer or even a precancer like ductal carcinoma in situ (DCIS) will remain dormant or become invasive. Think of it this way: the stroma is like soil; cancer is a seed. In soil that support the seed (cancer cells), the seed (cancer cells) will flourish. In soil that is inhospitable, the seed (cancer cells) will never grow."
A discussion of HRT is in the link.
"In very simple terms, the front of the eye is called the cornea, and this consists of a number of layers including the stroma, and endothelial layer. The stroma is like a sponge that can adsorb water, and to prevent too much water building up, the endothelial cells pump the excess water away to maintain the eye's normal function. "
"We already knew that targeting the stroma is essential for eradicating established large tumors, because the stroma is like the 'root of the tumor," said study author Hans Schreiber, MD, PhD, professor of pathology at the University of Chicago. "However, effects of current treatments that target stroma are usually transient and not cancer-specific."
"The stroma is like the cytoplasm of the chloroplast, and contains numerous soluble enzymes, in particular the enzymes involved in carbon fixation"
Molecular Mechanisms of Photosynthesis
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