Overexpression of low-molecular-weight (LMW-E) forms of the protein cyclin E renders the aromatase inhibitor letrozole ineffective among women with estrogen-receptor-positive (ER+) breast cancers, researchers from The University of Texas M. D. Anderson Cancer Center report in Clinical Cancer Research. The M. D. Anderson research, led by Khandan Keyomarsi, Ph.D., professor in M. D...
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