21615
A 2010 study concluded that extracts of " P. pulmonarius " may slow the proliferation of cancer cells with high galectin-3 levels , while at the same time downregulate tumour cell adherence - which is directly related to the progression and spread of cancer .
 spread
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 spread