NCAPD3 enhances Warburg effect through c-myc and E2F1 and promotes the occurrence and progression of colorectal cancer

被引:73
作者
Jing, Zuolei [1 ]
Liu, Qianmei [1 ]
He, Xinyuan [1 ]
Jia, Zhirong [1 ]
Xu, Zhizhong [2 ]
Yang, Bolin [2 ]
Liu, Ping [1 ]
机构
[1] Nanjing Normal Univ, Coll Life Sci, 1 Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China
[2] Nanjing Univ Chinese Med, Jiangsu Prov Hosp Chinese Med, Dept Colorectal Surg, Affiliated Hosp, 155 Hanzhong Rd, Nanjing 210029, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
NCAPD3; Warburg effect; Colorectal cancer; c-Myc; METABOLISM; TRANSCRIPTION; GLYCOLYSIS; EXPRESSION; MUTATIONS; HALLMARK; KINASE; ROLES;
D O I
10.1186/s13046-022-02412-3
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background NCAPD3 is one of the three non-SMC subunits of condensin II complex, which plays an important role in the chromosome condensation and segregation during mitosis. Notably, elevated levels of NCAPD3 are found in many somatic cancers. However, the clinical role, biological functions of NCAPD3 in cancers especially in colorectal cancer (CRC) and the underlying molecular mechanisms remain poorly elucidated. Methods Clinical CRC and adjacent normal tissues were used to confirm the expression of NCAPD3. The association of NCAPD3 expression with clinicopathological characteristics and patient outcomes were analyzed by using online database. In vivo subcutaneous tumor xenograft model, NCAPD3 gene knockout following azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced tumor mouse model, Co-IP, western blot, qRT-PCR, IHC, ChIP assays and cell functional assays were used to investigate the biological functions of NCAPD3 in CRC and the underlying molecular mechanisms. Results NCAPD3 was overexpressed in CRC tissues and positively correlated with poor prognosis of CRC patients. NCAPD3 knockout suppressed CRC development in AOM/DSS induced and xenograft mice models. Moreover, we found that NCAPD3 promoted aerobic glycolysis in CRC. Mechanistically, NCAPD3 up-regulated the level of c-Myc and interacted with c-Myc to recruit more c-Myc to the gene promoter of its downstream glycolytic regulators GLUT1, HK2, ENO1, PKM2 and LDHA, and finally enhanced cellular aerobic glycolysis. Also, NCAPD3 increased the level of E2F1 and interacted with E2F1 to recruit more E2F1 to the promoter regions of PDK1 and PDK3 genes, which resulted in the inhibition of PDH activity and TCA cycle. Conclusions Our data demonstrated that NCAPD3 promoted glucose metabolism reprogramming and enhanced Warburg effect in colorectal tumorigenesis and CRC progression. These findings reveal a novel mechanism underlying NCAPD3 mediated CRC cell growth and provide new targets for CRC treatment.
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页数:18
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