<p>Upregulated SET Promotes Cell Survival Through Activating Akt/NF-κB Signal in Colorectal Carcinoma</p>

Abstract

Purpose: SET has been proven to be an oncogene, which promotes the initiation and progression in several kinds of malignant carcinomas. However, the expression and its functional roles in colorectal carcinoma (CRC) remained unknown. Materials and Methods: CRC tissues samples, CRC cell lines and xenograft mouse tumors were used in this study. The mRNA and protein expressions were detected by quantitative real-time polymerase chain reaction (qRT-PCR), immunohistochemistry (IHC), and Western blot (WB), respectively. siRNAs were used to silence the gene expression. Cell viability, cell proliferation, colony formation, and apoptosis were measured by MTS assay, EdU incorporation assay, plated colony formation assay, and flow cytometry, respectively. Western blot was applied to evaluate the levels of Akt, p-Akt, c-Myc and cyclin D1. Xenograft mouse model was performed to observe the role of SET in vivo. Results: Our results revealed that SET was up-regulated in CRC, and the expression of SET was increased with the development of CRC. SET knockdown in vitro attenuated cell proliferation activity, and increased cell apoptosis in CRC cells. Moreover, the knockdown of SET reduces tumorigenic potential in nude mice. For the mechanism, knockdown of SET promoted the dephosphorylation of Akt, followed by suppressing the translocation of NF-κB to nucleus. In addition, SET knockdown-mediated dephosphorylation of Akt downregulated the expression of c-Myc and Cyclin D1, which inhibited the cell survival in CRC. Conclusion: Our results indicated that SET promoted cell survival via activating Akt/NF-κB signaling pathway in CRC, which strongly suggested that SET might be a potential therapeutic target in the colorectal carcinoma treatment.

The development of endoplasmic reticulum-related gene signatures and the immune infiltration analysis of sepsis

“…The expression profiles of SET , LPIN1 , and CD74 were significantly lower in the sepsis patients, whereas the expression of TXN was much higher. SET is a multifunctional histone chaperone localized in the nucleus predominantly, regulating chromatin condensation and transcription, and involved in many cellular processes ( 21 ). Fan et al.…”

Heat shock protein 47 promotes cell migration and invasion through AKT signal in non-small cell lung cancer

“…This is particularly important as the AKT signal is known to be vital for tumor development. For example, SET nuclear proto-oncogene elevates cell survival by augmenting AKT/NF-κB signaling in colorectal carcinoma [42]. Similarly, TDRG1 elevates cell proliferation and invasion by enhancing PI3K/AKT signal in osteosarcoma [43].…”