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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Adjuvant breast cancer therapy: current status and future strategies--growth kinetics and the improved drug therapy of breast cancer.

It is well-established that the adjuvant treatment of breast cancer is effective in prolonging both disease-free and overall survival. The pressing questions are how to improve on existing treatment, whether new agents should be incorporated into adjuvant regimens, and, if so, how they should best be utilized. The application of log-kill principles to the sigmoid growth curve characteristic of human cancers suggests that the chances of eradicating tumor will be increased by dose-dense schedules. If the tumor is composed of several cell lines with different sensitivities, the optimum therapy is likely to consist of several drugs given in sequence at a good dose and on a dense schedule. Such sequential chemotherapy, rather than the use of drugs given in combination at longer intervals, should maximize log-kill at the same time as minimizing tumor regrowth. There is now evidence that the actions of chemotherapy may involve Ras, tyrosine kinases (epidermal growth factor receptor, HER2), TC21, or similar molecules. This concept may provide important clues for optimizing the clinical applications of drug therapy and for designing new therapeutic approaches. It might also explain the reason why dose density may be more effective than other schedules of administration. New blood vessel formation is an obligatory step in the establishment of a tumor in its sigmoid growth course and there is evidence that taxanes adversely affect this process. Major practical advances in the curative drug therapy of cancer should follow the demonstration of better ways to maximize cell kill, the development of predictive in vitro methods of selecting active agents, the discovery of techniques to minimize both drug resistance and host-cell toxicity, and the improved understanding of cancer-stromal interactions and their therapeutic perturbation.[1]


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