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Tractional force exerted by tissue cells in 3D collagen matrices can be utilized for matrix remodeling or cell migration. The interrelationship between these motile processes is not well understood. The current studies were carried out to test the consequences of oncogenic Ras (H-Ras V12 ) transformation on human fibroblast contraction and migration in 3D collagen matrices. Beginning with...
Leishmania (Viannia) braziliensis is the major causative agent of American tegumentary leishmaniasis, a disease that encompasses a broad spectrum of clinical manifestations. In a previous study, we showed that Brazilian and Colombian L. braziliensis strains, isolated from patients with distinct clinical manifestations, display different pattern of metalloprotease activities. Following these results,...
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