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Activation of the insulin-like growth factor-1 receptor (IGF-1R) by IGF-1 and IGF-2 plays a prominent role in the growth and survival of small cell lung cancer (SCLC) by potently activating the PI3K-Akt signal transduction pathway, which is also an important factor in the resistance of SCLC to chemotherapy. A12 is a fully human monoclonal antibody directed against the human IGF-1R that does not cross-react...
We have used a fluorometric assay to determine the relative amounts of polymerized actin (F-actin) in wild-type and profilin mutant yeast cells. Our results indicate that profilin plays a role in maintaining normal F-actin levels in response to shifts to high temperature. Cells lacking profilin display a greater drop in F-actin levels upon such temperature shifts, and are slower to recover to initial...
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