Abstract：
:GRK5 is a multifunctional protein that is able to move within the cell in response to various stimuli to regulate key intracellular signaling from receptor activation, on plasmamembrane, to gene transcription, in the nucleus. Thus, GRK5 is involved in the development and progression of several pathological conditions including cancer. Here, we report an important tumor-promoting role for GRK5 in renal cell carcinoma (RCC). We investigated the expression pattern, clinical significance, and function of GRK5 in RCC. By using quantitative real-time polymerase chain reaction (qRT-PCR) and tissue microarray (TMA) immunohistochemistry (IHC), we first demonstrated that compared with paired adjacent nontumor (NT) tissues, RCC tissues presented with higher GRK5 expression. Moreover, we found that GRK5 upregulation was associated with poor clinical outcomes in RCC patients. In vitro, we found that GRK5 knockdown reduced viability, invasive ability, migratory ability, and decreased proportion of cells in S phase, with concomitant increase in G1 phase in RCC cell lines, while GRK5 overexpression promoted tumor cell proliferation, cell invasion, migration and increased proportion of cells in S phase, with concomitant decrease in G1 phase. Collectively, our findings describe the tumour-promoting role of GRK5 in RCC and thus provide molecular evidence for new therapeutic options in RCC.
journal_name
Neoplasmajournal_title
Neoplasmaauthors
Zhao TL,Gan XX,Bao Y,Wang WP,Liu B,Wang LHdoi
10.4149/neo_2018_180621N409subject
Has Abstractpub_date
2019-02-06 00:00:00pages
261-270issue
2eissn
0028-2685issn
1338-4317pii
180621N409journal_volume
66pub_type
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