Title:Comprehensive Analyses and Experiments Confirmed IGFBP5 as a
Prognostic Predictor Based on an Aging-genomic Landscape Analysis of
Ovarian Cancer
Volume: 24
Issue: 7
Author(s): Ting-Yu Fan, Li-li Xu, Hong-Feng Zhang, Juan Peng, Dan Liu, Wen-Da Zou, Wen-Jie Feng, Mei Qin, Juan Zhang*, Hui Li*Yu-Kun Li*
Affiliation:
- Department of Assisted Reproductive Centre, Zhuzhou Central Hospital, Xiangya Hospital Zhuzhou Central South
University, Central South University, Zhuzhou, Hunan, China
- Department of Assisted Reproductive Centre, Zhuzhou Central Hospital, Xiangya Hospital Zhuzhou Central South
University, Central South University, Zhuzhou, Hunan, China
- Department of Assisted Reproductive Centre, Zhuzhou Central Hospital, Xiangya Hospital Zhuzhou Central South
University, Central South University, Zhuzhou, Hunan, China
Keywords:
Ovarian cancer, IGBP5, aging-related genes, immune infiltration, prognostic model, oncogene-induced senescence (OIS).
Abstract:
Background: Ovarian cancer (OC) is one of the malignant diseases of the reproductive
system in elderly women. Aging-related genes (ARGs) were involved in tumor malignancy and
cellular senescence, but the specifics of these mechanisms in OC remain unknown.
Methods: ARGs expression and survival data of OC patients were collected from TCGA and CPTAC
databases. Subtype classification was used to identify the roles of hub ARGs in OC progression,
including function enrichment, immune infiltration, and drug sensitivity. LASSO regression
was utilized to confirm the prognosis significance for these hub ARGs. MTT, EdU, Transwell,
and wounding healing analysis confirmed the effect of IGFBP5 on the proliferation and migration
ability of OC cells.
Results: ARGs were ectopically expressed in OC tissues compared to normal ovary tissues. Three
molecular subtypes were divided by ARGs for OC patients. There were significant differences in
ferroptosis, m6A methylation, prognosis, immune infiltration, angiogenesis, differentiation level,
and drug sensitivity among the three groups. LASSO regression indicated that 4 signatures, FOXO4,
IGFBP5, OGG1 and TYMS, had important prognosis significance. Moreover, IGFBP5 was
significantly correlated with immune infiltration. The hub ARG, IGFBP5, expression was significantly
decreased in OC patients compared to normal women. IGFBP5 could also reduce the migration
and proliferation ability of OC cells compared to vector and NC groups.
Conclusion: IGFBP5 was correlated with OC prognosis and associated with OC migration and
proliferation. This gene may serve as potential prognostic biomarkers and therapeutic targets for
OC patients.