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Polyamine synthesis enzyme AMD1 is closely related to the tumorigenesis and prognosis of human breast cancer.

Hongyu Gao, Hanjun Li, Jingjie Wang, Cheng Xu, Yueyun Zhu, Dilihumaer Tuluhong, Xinfang Li, Shaohua Wang, Jieshou Li

Experimental cell research 2022 Aug 15


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    Adenosylmethionine decarboxylase 1 (AMD1) has been implicated in carcinogenesis and tumor progression. However, the potential biomechanism and biological implications of AMD1 in breast cancer (BC) remain unclear. The purpose of this study was to investigate the effect of abnormal expression of AMD1 in BC. The expression of AMD1 in different human BC cell lines was studied by using western blotting and qRT-PCR. In vitro cell proliferation, clone formation, cell cycle and apoptosis assays were performed to explore the effect of AMD1 on cellular proliferation. Xenograft mouse models were established to elucidate the role of AMD1 in BC growth. The expression profiles of AMD1 in 28 pairs of BC tissues and adjacent noncancerous tissues (ANTs) were investigated by using western blotting and immunohistochemistry. The clinical implication and prognostic evaluation of AMD1 in BC were examined by excavating the online database. We found that the expression levels of AMD1 in BC cell lines were significantly higher than those in the normal human breast epithelial cell line MCF-10A. In addition, AMD1 potentiated proliferation, induced cell cycle progression and inhibited apoptosis in BC cells. Subcutaneous tumor xenografts also supported the promotive role of AMD1 in BC growth. We discovered that the level of AMD1 in BC tissues was significantly higher than that in ANTs. Using the online database, increased AMD1 was found to be associated with clinical indicators and predicted a poor prognosis in patients with BC. Our findings indicate that AMD1 elicits potent oncogenic effects on the malignant progression of BC. AMD1 might serve as a promising diagnostic biomarker and therapeutic target for patients with BC. Copyright © 2022 Elsevier Inc. All rights reserved.

    Citation

    Hongyu Gao, Hanjun Li, Jingjie Wang, Cheng Xu, Yueyun Zhu, Dilihumaer Tuluhong, Xinfang Li, Shaohua Wang, Jieshou Li. Polyamine synthesis enzyme AMD1 is closely related to the tumorigenesis and prognosis of human breast cancer. Experimental cell research. 2022 Aug 15;417(2):113235

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    PMID: 35671837

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