机构:[1]Research Center, The Fourth Hospital of Hebei Medical University, Jiankang Road 12, Shijiazhuang 050011, China河北医科大学第四医院[2]Key Laboratory of Tumor Gene Diagnosis, Prevention and Therapy[3]Clinical Oncology Research Center, Hebei Province, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China河北医科大学第四医院[4]Thoracic Surgery Department, The Fourth Hospital of Hebei Medical University, Jiankang Road 12, Shijiazhuang 050011, China河北医科大学第四医院
Circular RNAs (circRNAs) have attracted increasing attention in cancer research. However, there are few studies about the high-throughput sequencing for clinical cohorts focussing on the expression characteristics and regulatory networks of circRNAs in oesophageal squamous cell carcinoma (ESCC) until now. Present study aim to comprehensively recognize the functional and mechanistic patterns of circRNA through constructing a circRNA-related competing endogenous RNA (ceRNA) network in ESCC. Summarily, RNA high-throughput sequencing was adopted to assess the circRNA, miRNA and mRNA expression profiles in ESCC. Through bioinformatics methods, a circRNA-miRNA-mRNA coexpression network was constructed and hub genes was identified. Finally, cellular function experiments combined with bioinformatics analysis were conducted to verify the identified circRNA was involved in the progression of ESCC through ceRNA mechanism. In this study, we established a ceRNA regulatory network, including 5 circRNAs, 7 miRNAs and 197 target mRNAs, and 20 hub genes were screened and identified to exert important roles in the progression of ESCC. As a verification, hsa_circ_0002470 (circIFI6) was revealed to be highly expressed in ESCC and regulate the expression of hub genes by absorbing miR-497-5p and miR-195-5p through ceRNA mechanism. Our results further indicated that silencing of circIFI6 repressed proliferation and migration of ESCC cells, highlighting the tumour promotion effects of circIFI6 in ESCC. Collectively, our study contributes a new insight into the progression of ESCC from the perspective of the circRNA-miRNA-mRNA network, shedding light on the circRNA research in ESCC. We constructed a dysregulated circRNAs complex that were involved in the progression of ESCC through ceRNA network. CircIFI6 may promote the malignant progression of ESCC via ceRNA mechanism and has the potential to serve as a therapeutic target for ESCC.
基金:
National Natural Science
Foundation of China (U21A20415) and the Natural Science
Foundation of Hebei Province (H2021206419).
第一作者机构:[1]Research Center, The Fourth Hospital of Hebei Medical University, Jiankang Road 12, Shijiazhuang 050011, China[2]Key Laboratory of Tumor Gene Diagnosis, Prevention and Therapy[3]Clinical Oncology Research Center, Hebei Province, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
共同第一作者:
通讯作者:
通讯机构:[1]Research Center, The Fourth Hospital of Hebei Medical University, Jiankang Road 12, Shijiazhuang 050011, China[2]Key Laboratory of Tumor Gene Diagnosis, Prevention and Therapy[3]Clinical Oncology Research Center, Hebei Province, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
推荐引用方式(GB/T 7714):
Dai Suli,Zhang Cong,Wei Xiaojian,et al.RNA sequencing reveals the implication of the circRNA-associated ceRNA network in oesophageal squamous cell carcinoma[J].CARCINOGENESIS.2023,44(7):596-609.doi:10.1093/carcin/bgad050.
APA:
Dai, Suli,Zhang, Cong,Wei, Xiaojian,Wang, Xiaohan,Wen, Yang...&Shan, Baoen.(2023).RNA sequencing reveals the implication of the circRNA-associated ceRNA network in oesophageal squamous cell carcinoma.CARCINOGENESIS,44,(7)
MLA:
Dai, Suli,et al."RNA sequencing reveals the implication of the circRNA-associated ceRNA network in oesophageal squamous cell carcinoma".CARCINOGENESIS 44..7(2023):596-609