Ets-1 upregulates HER2-induced MMP-1 expression in breast cancer cells.
The human epidermal growth factor receptor-2 (HER2) plays an important role in breast cancer. Enhanced Ets-1 activity has recently been shown to be associated with breast cancer pathogenesis. To test the role of Ets-1 in breast cancer cells in relation to the expression of HER2 and MMP-1, we transiently overexpressed Ets-1 and/or HER2 in MCF-7 breast cancer cells and comprehensively searched for genes related to HER2 and Ets-1 using cDNA microarray analysis. The expression of matrix metalloproteinase (MMP) genes was enhanced by the overexpression of HER2/Ets-1. We analyzed the relationship between HER2-induced MMP-1 expression and the transcription factor Ets-1, which has significant activity in breast cancer pathogenesis. Our results demonstrate that HER2-induced MMP-1 expression is positively regulated by Ets-1 in breast cancer cells. This study confirms that Ets-1 is a downstream effector of oncogenic HER2, associated with MMP-1.
Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, Republic of Korea; Biomedical Research Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, Republic of Korea.
Yeon Hee
YH
Park
Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, Republic of Korea; Biomedical Research Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, Republic of Korea.
Hae Hyun
HH
Jung
Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, Republic of Korea; Biomedical Research Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, Republic of Korea.
Jin Seok
JS
Ahn
Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, Republic of Korea; Biomedical Research Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, Republic of Korea. Electronic address: imyh00@skku.edu.
Young-Hyuck
YH
Im
D001943:Breast Neoplasms / Q000235:genetics* / Q000378:metabolism*; D045744:Cell Line, Tumor; D015536:Down-Regulation; D066246:ErbB Receptors / Q000378:metabolism; D006801:Humans; D020781:Matrix Metalloproteinase 1 / Q000235:genetics* / Q000378:metabolism; D020411:Oligonucleotide Array Sequence Analysis; D010766:Phosphorylation / Q000187:drug effects; D011401:Promoter Regions, Genetic; D050784:Proto-Oncogene Protein c-ets-1 / Q000235:genetics / Q000378:metabolism*; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000037:antagonists & inhibitors / Q000235:genetics* / Q000378:metabolism; D014162:Transfection
D066246:ErbB Receptors; D020781:Matrix Metalloproteinase 1; D050784:Proto-Oncogene Protein c-ets-1; D018719:Erb-b2 Receptor Tyrosine Kinases; C494041:ETS1 protein, human