HNF1A induces glioblastoma by upregulating EPS8 and activating PI3K/AKT signaling pathway

Copyright © 2024 Elsevier Inc. All rights reserved..

Despite the exact biological role of HNF1 homolog A (HNF1A) in the regulatory mechanism of glioblastoma (GBM), the molecular mechanism, especially the downstream regulation as a transcription factor, remains to be further elucidated. Immunohistochemistry was used to detect the expression and clinical relevance of HNF1A in GBM patients. CCK8, TUNEL, and subcutaneous tumor formation in nude mice were used to evaluate the effect of HNF1A on GBM in vitro and in vivo. The correction between HNF1A and epidermal growth factor receptor pathway substrate 8 (EPS8) was illustrated by bioinformatics analysis and luciferase assay. Further mechanism was explored that the transcription factor HNF1A regulated the expression of EPS8 and downstream signaling pathways by directly binding to the promoter region of EPS8. Our comprehensive analysis of clinical samples in this study showed that upregulated expression of HNF1A was associated with poor survival in GBM patients. Further, we found that knockdown of HNF1A markedly suppressed the malignant phenotype of GBM cells in vivo and in vitro as well as promoted apoptosis of tumor cells, which was reversed by upregulation of HNF1A. Mechanistically, HNF1A could significantly activate PI3K/AKT signaling pathway by specifically binding to the promoter regions of EPS8. Moreover, overexpression of EPS8 was able to reverse the apoptosis of tumor cells caused by HNF1A knockdown, thereby exacerbating the GBM progression. Correctively, our study has clarified the explicit mechanism by which HNF1A promotes GBM malignancy and provides a new therapeutic target for further clinical application.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:223

Enthalten in:

Biochemical pharmacology - 223(2024) vom: 15. Apr., Seite 116133

Sprache:

Englisch

Beteiligte Personen:

Yang, Gang [VerfasserIn]
Su, Fei [VerfasserIn]
Han, Bin-Xiao [VerfasserIn]
Su, Hong-Xin [VerfasserIn]
Guo, Chen-Hao [VerfasserIn]
Yu, Shao-Hua [VerfasserIn]
Guan, Quan-Lin [VerfasserIn]
Hou, Xiao-Ming [VerfasserIn]

Links:

Volltext

Themen:

Adaptor Proteins, Signal Transducing
EC 2.7.1.-
EC 2.7.11.1
EPS8
EPS8 protein, human
GBM
HNF1A
HNF1A protein, human
Hepatocyte Nuclear Factor 1-alpha
Journal Article
PI3K/AKT signaling pathway
Phosphatidylinositol 3-Kinases
Proto-Oncogene Proteins c-akt
Transcription Factors
Transcriptional regulation

Anmerkungen:

Date Completed 22.04.2024

Date Revised 22.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.bcp.2024.116133

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM36983755X