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Background

Annexins are a family of proteins involved in a wide variety of cellular processes such as inflammation, proliferation, differentiation, apoptosis, migration and membrane repair. However, the role of most Annexins in renal cell carcinoma (RCC) remained unclear.

Methods

The differentially expressed Annexins in RCC compared with normal controls were screened applying the TCGA database. The correlation of differentially expressed Annexins with clinical stages, grades and overall survival was analyzed to explore the clinical significance of Annexins in RCC. Then ANXA8 was selected and further stained in the discover and validation RCC cohort. The correlation of ANXA8 expression with clinical parameter was verified at the protein level. To explore the potential function of ANXA8, ANXA8 was knockdown in the RCC cell line and further analyzed using transcriptome and bioinformatic analysis.

Results

mRNA expression of ANXA1, ANXA2R, ANXA4, ANXA8, ANXA8L1 and ANXA13 were significantly upregulated in RCC compared with normal kidney tissues. In contrast, ANXA3 and ANXA9 mRNA expression was significantly downregulated. Higher expression of ANXA2R, ANXA8 and ANXA8L1 were correlated with worse overall survival, while lower expression of ANXA3, ANXA9 and ANXA13 were associated with worse clinical outcomes in RCC patients. We further demonstrated that ANXA8 expression was significantly increased in RCC compared with normal renal tissues at the protein level. And higher protein expression of ANXA8 was associated with higher clinical grades. Through the bioinformatics analysis and cell cycle analysis, we found knockdown of ANXA8 mainly influenced the cell cycle and DNA replication. The top ten hub genes consist of CDC6, CDK2, CHEK1, CCNB1, ORC1, CHEK2, MCM7, CDK1, PCNA and MCM3.

Conclusions

Multiple members of Annexins were abnormally expressed and associated with the prognosis of RCC. The expression of ANXA8 was significantly increased in RCC and associated with poor prognosis. ANXA8 might influence the cell cycle and could be a potential biomarker and therapeutic target for RCC."xsd:string
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http://purl.uniprot.org/citations/37464398http://purl.uniprot.org/core/author"Li Y.L."xsd:string
http://purl.uniprot.org/citations/37464398http://purl.uniprot.org/core/author"Wang L.H."xsd:string
http://purl.uniprot.org/citations/37464398http://purl.uniprot.org/core/author"Cao B."xsd:string
http://purl.uniprot.org/citations/37464398http://purl.uniprot.org/core/author"Qiao B.P."xsd:string
http://purl.uniprot.org/citations/37464398http://purl.uniprot.org/core/date"2023"xsd:gYear
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http://purl.uniprot.org/citations/37464398http://purl.uniprot.org/core/title"Potential prognostic and therapeutic value of ANXA8 in renal cell carcinoma: based on the comprehensive analysis of annexins family."xsd:string
http://purl.uniprot.org/citations/37464398http://purl.uniprot.org/core/volume"23"xsd:string
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