| RRC ID |
63108
|
| 著者 |
Sakai K, Nishiuchi T, Tange S, Suzuki Y, Yano S, Terashima M, Suzuki T, Matsumoto K.
|
| タイトル |
Proteasomal degradation of polycomb-group protein CBX6 confers MMP-2 expression essential for mesothelioma invasion.
|
| ジャーナル |
Sci Rep
|
| Abstract |
The aggressive invasiveness of malignant mesothelioma limits cancer therapy, however, the molecular mechanisms underlying the invasiveness remain largely unknown. Here we found that the matrix metalloproteinase-2 (MMP-2) was required for the invasion of mesothelioma cells in the collagen matrix and the gene expression of MMP-2 was correlated with the invasive phenotype. The MMP-2 gene expression was regulated by DNA and histone methylation around the transcription start site, implicating the involvement of the polycomb repressive complex (PRC). Knockdown of PRC component chromobox 6 (CBX6) promoted MMP-2 expression and invasion of mesothelioma cells. Transcriptome analysis suggested that CBX6 regulates sets of genes involved in cancer cell migration and metastasis. In invasive but not non-invasive cells, CBX6 was constantly unstable owing to ubiquitination and protein degradation. In human tissues, CBX6 localized in the nuclei of normal mesothelium and benign mesothelioma, but the nuclear staining of CBX6 was lost in malignant mesothelioma. These results suggest involvement of proteasomal degradation of CBX6 in mesothelioma progression.
|
| 巻・号 |
10(1)
|
| ページ |
16678
|
| 公開日 |
2020-10-7
|
| DOI |
10.1038/s41598-020-72448-y
|
| PII |
10.1038/s41598-020-72448-y
|
| PMID |
33028834
|
| PMC |
PMC7541533
|
| MeSH |
Cell Line, Tumor
Cell Movement
Cell Proliferation
Epigenesis, Genetic
Gene Expression Profiling
Gene Knockdown Techniques
Humans
Matrix Metalloproteinase 2 / genetics
Matrix Metalloproteinase 2 / metabolism*
Mesothelioma, Malignant / genetics
Mesothelioma, Malignant / metabolism*
Mesothelioma, Malignant / pathology
Neoplasm Invasiveness / pathology
Polycomb-Group Proteins / genetics
Polycomb-Group Proteins / metabolism*
Proteasome Endopeptidase Complex / metabolism*
|
| IF |
3.998
|
| リソース情報 |
| ヒト・動物細胞 |
ACC-MESO-1(RCB2292)
ACC-MESO-4(RCB2293) |
