Craig P. Webb

TL;DR: It is shown that LF is a protease that cleaves the amino terminus of mitogen-activated protein kinase kinases 1 and 2 and that this cleavage inactivates MAPKK1 and inhibits the MAPK signal transduction pathway.

TL;DR: The results demonstrate that the Met mutants originally identified in human papillary renal carcinoma are oncogenic and thus are likely to play a determinant role in this disease, and raise the possibility that activating Met mutations also may contribute to other human malignancies.

TL;DR: This was a pilot process, and the experience gained will both facilitate better understanding of how the qualification process will probably evolve and clarify the minimal requirements necessary to evaluate the performance of biomarkers of organ injury within specific contexts.

TL;DR: It is found that mutant Met induces the motility of Madin-Darby canine kidney cells in vitro and experimental metastasis of NIH 3T3 cells in vivo, and that the Ras-Raf-MEK-ERK signaling pathway, which has been implicated previously in cellular motility and metastasis, is constitutively activated by the Met mutants.

TL;DR: Results show that the metastatic properties of the Ras effector domain mutants segregate, and that, whereas Ras-mediated tumorigenicity can arise independently of ERK1/2 activation, experimental metastasis appears to require constitutive activation of the ERK 1/2 pathway.