Cathepsin�L interacts with CDK2‑AP1 as a potential predictor of prognosis in patients with breast cancer
| Autor: | Kuan Song Wang, Wei‑Bing Zhou, Juan Chen, Ting Zhu, Zhen Xiang, Ling Li, Mei‑Zuo Zhong, Zhan Wang, Juan Huang, Lun‑Quan Sun |
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| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Cancer Research Cathepsin L Cell medicine.disease_cause cyclin-dependent kinase 2-associated protein 1 03 medical and health sciences breast cancer 0302 clinical medicine Breast cancer Medicine biology Oncogene business.industry Cancer Articles Cell cycle medicine.disease Molecular medicine 030104 developmental biology medicine.anatomical_structure Oncology 030220 oncology & carcinogenesis biology.protein Cancer research prognosis business Carcinogenesis |
| Zdroj: | Oncology Letters |
| ISSN: | 1792-1082 1792-1074 |
| Popis: | Cathepsin L (CTSL) is a lysosomal acid cysteine protease that has been implicated in tumorigenesis and malignant progression. In the present study, the role of CTSL in tumorigenesis and prognosis of breast cancer was evaluated. The prognostic value of CTSL was analyzed using immunohistochemistry in patients with breast cancer, as well as online microarray datasets. CTSL expression was knocked down in the breast cancer cell line T-47D using RNA interference. MTT and colony formation assays were performed to assess the role of CTSL in the proliferation of breast cancer cells. Cell cycle progression and apoptosis were measured using flow cytometry. A physical interaction of CTSL and cyclin dependent kinase 2 associated protein 1 (CDK2-AP1) was determined using a glutathione S-transferase pull-down assay. Endogenous CTSL expression was high in breast cancer cells and exhibited an inverse association with CDK2-AP1 expression; aberrant expression of CTSL in breast cancer tissues predicted an improved clinical outcome and prognosis. In addition, CTSL knockdown decelerated the progression of breast cancer cells by arresting cell cycle progression and increasing apoptosis. Thus, CTSL may be a potential therapeutic target for treating patients with breast cancer. |
| Databáze: | OpenAIRE |
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