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Published on: May 14, 2016
Cucurbitacin E inhibits cellular proliferation and induces apoptosis in melanoma by suppressing HSDL2 expression
Wen-Bei Liu1, He-Li Wang1, Lei Chen1
1Department of Dermato-Venerology and Department of Burn and Plastic Surgery, The First Affiliated Hospital of Wannan Medical College, Jinghu District, Wuhu, 241000, Anhui, China.
Background:
Melanoma is among the most aggressive types of skin malignancy and can have an unpredictable clinical course. Exploration of novel therapeutic targets and their regulators remains essential for the prevention and treatment of melanoma.
Methods:
HSDL2 protein levels were examined by immunohistochemistry. The roles of HSDL2 in cell proliferation and apoptosis were identified by CCK-8 and colony formation assays. The function of HSDL2 in cell apoptosis was analysed by flow cytometry. Western blotting, cell proliferation and apoptosis and a xenograft tumour model were utilized to explore the inhibitory functions and mechanisms of CuE in melanoma.
Results:
HSDL2 is overexpressed in melanoma and promotes melanoma progression by activating the ERK and AKT pathways. CuE could inhibit the ERK and AKT pathways by decreasing HSDL2 expression; therefore, CuE could inhibit melanoma growth in vitro and in vivo.
Conclusion:
HSDL2 may be a promising therapeutic target against melanoma, and CuE can inhibit melanoma by downregulating HSDL2 expression.
Insights
Hydroxysteroid dehydrogenase-like 2 (HSDL2) protein promotes melanoma progression. Copper(II) ethylenediamine complex (CuE) inhibits melanoma by decreasing HSDL2 expression, suggesting HSDL2 as a therapeutic target.
Area of Science:
- Oncology
- Dermatology
- Molecular Biology
Background:
- Melanoma is an aggressive skin cancer with unpredictable behavior.
- Identifying novel therapeutic targets is crucial for melanoma treatment and prevention.
Purpose of the Study:
- To investigate the role of HSDL2 protein in melanoma.
- To explore the potential of Copper(II) ethylenediamine complex (CuE) as a melanoma therapeutic agent by targeting HSDL2.
Main Methods:
- Immunohistochemistry to assess HSDL2 protein levels.
- Cell proliferation and apoptosis assays (CCK-8, colony formation, flow cytometry).
- Western blotting and xenograft tumor models to evaluate CuE's inhibitory effects.
Main Results:
- HSDL2 is overexpressed in melanoma and drives progression via ERK and AKT pathways.
- CuE inhibits melanoma growth in vitro and in vivo.
- CuE exerts its inhibitory effects by decreasing HSDL2 expression and blocking ERK/AKT signaling.
Conclusions:
- HSDL2 is implicated in melanoma progression and represents a potential therapeutic target.
- CuE demonstrates efficacy in inhibiting melanoma by downregulating HSDL2 expression.
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