Abstract
Breast cancer is one of the deadliest malignancies in women worldwide. Zinc finger protein 32 (ZNF32) has been reported to be involved in autophagy and stem cell like properties of breast cancer cells. However, the effects, mechanisms, target genes and pathways of ZNF32 in breast cancer development have not been fully explored. In this study, stable ZNF32 overexpression breast cancer cell line was generated, and we used RNA-seq and RT-qPCR to quantify and verify the changes in transcription levels in breast cancer cells under ZNF32 overexpression. Transcriptome analysis showed that high expression of ZNF32 is accompanied by changes in downstream focal adhesion, ECM-receptor interaction, PI3K-AKT, HIPPO and TNF signaling pathways, which are critical for the occurrence and development of cancer. Multiple differentially expressed genes (DEGs) were significantly involved in cell proliferation, adhesion and migration, including 11 DEGs such as CA9, CRLF1 and ENPP2P with fundamental change of regulation modes. All the 11 DEGs were validated by RT-qPCR, and 9 of them contained potential transcriptional binding sequences of ZNF32 in their promoter region. This study provides a holistic perspective on the role and molecular mechanism of ZNF32 in breast cancer progression.
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