Open AccessCCNB1 promotes the development of hepatocellular carcinoma by mediating DNA replication in the cell cycle
Author(s) -
Minhua Rong,
JianDi Li,
Lu-Yang Zhong,
Yuzhen Huang,
Juan Chen,
Lu Xie,
Rong-Xing Qin,
X J He,
Zhan-Hui Zhu,
Su-Hua Huang,
Xiaoting Zhou
Publication year - 2021
Publication title -
experimental biology and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 146
eISSN - 1535-3702
pISSN - 1535-3699
DOI - 10.1177/15353702211049149
Subject(s) - cell cycle , biology , hepatocellular carcinoma , cancer research , dna replication , downregulation and upregulation , gene , genetics
In our studies, cyclin B1 ( CCNB1 ) mRNA and protein were overexpressed in hepatocellular carcinoma (HCC) tissues compared with non-HCC tissues. Moreover, CCNB1 was overexpressed in the serum of HCC patients. The expression of CCNB1 was associated with several crucial clinicopathologic characteristics, and the HCC patients with overexpressed CCNB1 had worse overall survival outcomes. In the screening of interactional genes, a total of 266 upregulated co-expression genes, which were positively associated with CCNB1 , were selected from the datasets, and 67 downregulated co-expression genes, which were negatively associated with CCNB1 , were identified. The key genes might be functionally enriched in DNA replication and the cell cycle pathways. CDC20 , CCNA2 , PLK1 , and FTCD were selected for further research because they were highly connected in the protein-protein interaction networks. Upregulated CDC20 , CCNA2 , and PLK1 and downregulated FTCD might result in undesirable overall survival outcomes for HCC patients. The univariate Cox analysis results showed that CDC20 and PLK1 might be two independent risk factors, while FTCD might be protective in HCC. Therefore, CCNB1 may participate in the cell cycle of HCC by regulating DNA replication, and CCNB1 may provide a direction for the diagnosis of early-stage HCC and targeted HCC therapy.