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Published on: October 11, 2019
The correlation between the MYBL2/CDCA8 signaling pathway of malignant melanoma
Chen Wu1, Jiahui Jiang1, Chao Ci1
1Department of Dermatology, The First Affiliated Hospital of Wannan Medical College, No. 2 Zheshan West Road, Wuhu, Anhui, 241001, China.
Objective:
Investigating the effects of MYB proto-oncogene like 2 (MYBL2)-mediated regulation of Cell division cycle associated 8 (CDCA8) expression on the biological activity of cutaneous malignant melanoma cells.
Methods:
A375 cells with MYBL2 and CDCA8 overexpression and knockdown were evaluated using migration, invasion, and proliferation assays. Besides, cell apoptosis was quantified by flow cytometry. To investigate the tumorigenic effects of MYBL2 knockdown in vivo, A375 cells with MYBL2 knockdown were injected in BALB/C nude mice.
Results:
The levels of MYBL2 and CDCA8 gene expression were notably elevated in A375 cells in comparison to HaCat cells (P < 0.05). Downregulation of MYBL2 led to a notable reduction in the migratory and invasive capability of A375 cells in vitro (P < 0.001). On the contrary, overexpression of MYBL2 enhanced migration and invasion ability (P < 0.001). There existed a positive correlation between CDCA8 and MYBL2 gene and protein expression levels after overexpression or knockdown of MYBL2 (P < 0.001). In the in vivo tumorigenic study, the MYBL2 knockdown group displayed a substantial decrease in tumor volume (P < 0.01) and exhibited decreased CDCA8 expression in tumors in comparison to the control group.
Conclusion:
We arrived at such a conclusion that MYBL2 promoted the migration, invasion and proliferation ability of cutaneous malignant melanoma cells by targeted regulation of CDCA8 expression in this study.
Insights
MYB proto-oncogene like 2 (MYBL2) promotes malignant melanoma cell migration and invasion by regulating Cell division cycle associated 8 (CDCA8) expression. This study reveals MYBL2 as a potential therapeutic target for melanoma.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Cutaneous malignant melanoma is an aggressive skin cancer with significant mortality.
- Understanding the molecular mechanisms driving melanoma progression is crucial for developing effective treatments.
Purpose of the Study:
- To investigate the role of MYB proto-oncogene like 2 (MYBL2) in regulating Cell division cycle associated 8 (CDCA8) expression.
- To determine the impact of MYBL2-mediated CDCA8 regulation on the biological activity of cutaneous malignant melanoma cells.
Main Methods:
- Utilized A375 melanoma cells with MYBL2 and CDCA8 overexpression and knockdown.
- Assessed cell migration, invasion, and proliferation using in vitro assays.
- Quantified apoptosis via flow cytometry and evaluated in vivo tumorigenic potential in nude mice.
Main Results:
- MYBL2 and CDCA8 expression was elevated in melanoma cells compared to normal cells.
- MYBL2 downregulation reduced melanoma cell migration and invasion, while overexpression enhanced these processes.
- A positive correlation was observed between MYBL2 and CDCA8 expression.
- In vivo studies showed MYBL2 knockdown significantly reduced tumor volume and CDCA8 expression.
Conclusions:
- MYBL2 promotes migration, invasion, and proliferation in cutaneous malignant melanoma cells.
- This promotion is achieved through the targeted regulation of CDCA8 expression.
- MYBL2 represents a potential therapeutic target for melanoma treatment.
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