@article{88191, keywords = {Animals, Humans, Immunohistochemistry, Transcription Factors, Chromatin Immunoprecipitation, Microscopy, Fluorescence, DNA-Binding Proteins, Mice, Female, Cell Line, Tumor, Breast Neoplasms, Epithelial-Mesenchymal Transition, Mammary Glands, Human, Mice, Inbred BALB C, Snail Family Transcription Factors, Mice, Nude, Mammary Neoplasms, Experimental, Mammary Glands, Animal, Proto-Oncogene Proteins c-ets}, author = {Rumela Chakrabarti and Julie Hwang and Mario Andres Blanco and Yong Wei and Martin Luka{\v c}i{\v s}in and Rose-Anne Romano and Kirsten Smalley and Song Liu and Qifeng Yang and Toni Ibrahim and Laura Mercatali and Dino Amadori and Bruce Haffty and Satrajit Sinha and Yibin Kang}, title = {Elf5 inhibits the epithelial-mesenchymal transition in mammary gland development and breast cancer metastasis by transcriptionally repressing Snail2.}, abstract = {
The epithelial-mesenchymal transition (EMT) is a complex process that occurs during organogenesis and in cancer metastasis. Despite recent progress, the molecular pathways connecting the physiological and pathological functions of EMT need to be better defined. Here we show that the transcription factor Elf5, a key regulator of mammary gland alveologenesis, controls EMT in both mammary gland development and metastasis. We uncovered this role for Elf5 through analyses of Elf5 conditional knockout animals, various in vitro and in vivo models of EMT and metastasis, an MMTV-neu transgenic model of mammary tumour progression and clinical breast cancer samples. Furthermore, we demonstrate that Elf5 suppresses EMT by directly repressing the transcription of Snail2, a master regulator of mammary stem cells and a known inducer of EMT. These findings establish Elf5 not only as a key cell lineage regulator during normal mammary gland development, but also as a suppressor of EMT and metastasis in breast cancer.
}, year = {2012}, journal = {Nat Cell Biol}, volume = {14}, pages = {1212-22}, month = {11/2012}, issn = {1476-4679}, doi = {10.1038/ncb2607}, language = {eng}, }