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LncRNA AFAP1-AS1 contributes to the progression of endometrial carcinoma by regulating miR-545-3p/VEGFA pathway
Youwen Zhong1, Yidong Wang2, Huimin Dang3
1School of Economics and Finance, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710061, China.
Abstract:
Endometrial carcinoma (EC) accounts for 20%-30% of female reproductive tumors. Targeted therapy for EC has shown great advantages with small side effects. To improve the survival of EC patients, more new therapeutic targets need to be found. Long non-coding RNAs (lncRNAs) are series of RNAs with over 200 nucleotides that regulate various cellular functions. LncRNA actin filamentin-1 antisense RNA 1 (AFAP1-AS1) is involved in the development of a variety of cancers, such as pancreas ductal adenocarcinoma and esophageal adenocarcinoma. However, it is not clear whether AFAP1-AS1 has any effects on EC or the exact regulatory mechanism. Herein, we found the high expression of AFAP1-AS1 in human EC tissues, and AFAP1-AS1 was correlated with EC patients' prognosis and clinical features. AFAP-AS1 could affect EC cell proliferation, migration, and invasion, and contributed to endothelial cell angiogenesis. We further showed that AFAP-AS1 could promote the expression of VEGFA through the adsorption of miR-545-3p, thus promoting the angiogenesis and invasion of EC, and contribute to tumor growth and metastasis in vivo. Thus, we thought AFAP1-AS1 had the potential to serve as an EC therapeutic target.
Insights
High expression of actin filamentin-1 antisense RNA 1 (AFAP1-AS1) promotes endometrial carcinoma (EC) growth and metastasis. AFAP1-AS1 may serve as a novel therapeutic target for EC patients.
Area of Science:
- Oncology
- Molecular Biology
- RNA Biology
Background:
- Endometrial carcinoma (EC) is a common gynecological malignancy.
- Targeted therapies offer advantages but require identification of new therapeutic targets.
- Long non-coding RNAs (lncRNAs) regulate cellular functions and are implicated in various cancers.
Purpose of the Study:
- To investigate the role of lncRNA AFAP1-AS1 in endometrial carcinoma.
- To elucidate the underlying regulatory mechanism of AFAP1-AS1 in EC progression.
Main Methods:
- Analysis of AFAP1-AS1 expression in human EC tissues.
- Assessment of AFAP1-AS1's impact on EC cell proliferation, migration, and invasion.
- Investigation of AFAP1-AS1's effect on endothelial cell angiogenesis.
- Determination of AFAP1-AS1's interaction with miR-545-3p and VEGFA expression.
Main Results:
- AFAP1-AS1 was highly expressed in EC tissues and correlated with patient prognosis and clinical features.
- AFAP1-AS1 promoted EC cell proliferation, migration, invasion, and angiogenesis.
- AFAP1-AS1 upregulated VEGFA expression by adsorbing miR-545-3p.
- AFAP1-AS1 facilitated tumor growth and metastasis in vivo.
Conclusions:
- AFAP1-AS1 plays a significant role in endometrial carcinoma progression.
- The AFAP1-AS1/miR-545-3p/VEGFA axis promotes EC angiogenesis, invasion, and metastasis.
- AFAP1-AS1 represents a potential therapeutic target for endometrial carcinoma.
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