| Abstract: | Evaluation of: Pizzatti L, Panis C, Lemos G et al. Label-free MS(E) proteomic analysis of chronic myeloid leukemia bone marrow plasma: disclosing new insights from therapy resistance. Proteomics 12(17), 2618–2631 (2012).In spite of the effective chronic myeloid leukemia (CML) therapy, a small percentage will fail on therapy and develop acute myeloid leukemia-like blast crisis. Understanding the underlying biology of therapy resistance is probably needed to develop better blood cancer therapy, and CML may be an ideal disease model for future therapy that targets resistance mechanisms. Cell-stromal interactions and dissection of the interstitial tissue fluid is a relatively new source for understanding the resistance mechanisms. Abdelhay’s team have compared the proteome of bone marrow plasma in CML imatinib (Gleevec) responders and nonresponders. We discuss their findings of dysregulated redox and Wnt signaling in imatinib resistance, illustrating how powerful proteomics may be in the discovery of new therapeutic mechanisms. |
