| Gene information | Literature | Expression | lncRNA | Mutation | Homolog |
Basic Information | |
|---|---|
Gene ID | 1385 |
Name | CREB1 |
Synonymous | cAMP responsive element binding protein 1;CREB1;cAMP responsive element binding protein 1 |
Definition | CREB-1|active transcription factor CREB|cAMP-response element-binding protein-1|cAMP-responsive element-binding protein 1|cyclic AMP-responsive element-binding protein 1|transactivator protein |
Position | 2q34 |
Gene type | protein-coding |
Title | Abstract |
| The role of CREB as a proto-oncogene in hematopoiesis and in acute myeloid leukemia. | CREB is a transcription factor that functions in glucose homeostasis, growth factor-dependent cell survival, and memory. In this study, we describe a role of CREB in human cancer. CREB overexpression is associated with increased risk of relapse and decreased event-free survival. CREB levels are elevated in blast cells from patients with acute myeloid leukemia. To understand the role of CREB in leukemogenesis, we studied the biological consequences of CREB overexpression in primary human leukemia cells, leukemia cell lines, and transgenic mice. Our results demonstrate that CREB promotes abnormal proliferation and survival of myeloid cells in vitro and in vivo through upregulation of specific target genes. Thus, we report that CREB is implicated in myeloid cell transformation. |
| Decrease of phosphorylated proto-oncogene CREB at Ser 133 site inhibits growth and metastatic activity of renal cell cancer. | OBJECTIVE: Cyclic-AMP-responsive element-binding protein (CREB) is a proto-oncogenic transcription factor. The authors previous reports showed that blocking the CREB binding site at Ser 133 inhibited the expression of target genes, which related to the progression of some tumors. In this study, the authors investigated the role of phosphorylated CREB (pCREB) at Ser133 in renal cell carcinoma (RCC) growth and metastases. METHODS: Immunohistochemistry, xenograft model in nude mice, cell proliferation assay, cell invasion/migration assay, fluorescent immunocytochemistry and Western analysis were performed in an immortalized proximal tubule epithelial cell line and clear-cell RCC. RESULTS: The authors results showed that knockdown of pCREB inhibited kidney cancer cells growth in vivo. Furthermore, suppression of the pCREB level blunted the capabilities of cell migration and invasion in vitro and was accompanied with significantly decreased expression of MMP-2 and MMP-9, the filopodia formation and epithelial-mesenchymal transition-related proteins. Surprisingly, no changes of expression or location of vimentin were revealed in the experiment. Bioinformatic software explained the possible reason for this is that the promoter of vimentin does not contain the CRE sequence. CONCLUSIONS: These data suggest that decreasing the level of pCREB inhibits the growth and metastasis of RCC by targeting the Ser 133 site. |