A scheme to tackle the dilemma from hepatoma cells under doxorubicin-resistant surroundings: a brightness or a silhouette.

The aim of this study was to investigate key target(s), mechanism(s) from hepatoma cells in harsh doxorubicin-resistant conditions (DRCs) from GSE125180 datasets in GEO (Gene Expression Omnibus).

The identified components can be denoted as a brightness (therapeutic mark) or darkness (resistant mark) in DRCs. The protein-protein interaction (PPI) networks were assembled to identify the relationships between upregulated and downregulated genes via STRING, and R program.

In the |log2 FC| > 1, and |log2 FC| > 2 subgroups, the uppermost target was a non-receptor tyrosine kinase (SRC) downregulated in DRCs, indicating that the dampened SRC is a therapeutic mark by doxorubicin (DOX). In contrast, in the |log2 FC| > 3 subgroup, the most significant target was Cluster of Differentiation 93 (CD93) upregulated in DRCs, suggesting that the overexpressed CD93 is a resistant mark in DRCs. Metoclopramide (MET) @ CD93 + DOX conformer is a highlighted capture to illuminate as combination therapy to overcome DRCs because MET is an inhibitor against CD93 as well as a non-competitive inhibitor on (MET @ CD93 + DOX) conformer.

These findings provide a mechanistic rationale for repurposing MET as an adjuvant agent to enhance therapeutic efficacy and overcome drug resistance in combination treatment strategies.
Cancer
Policy

Authors

Oh Oh, Kwon Kwon, Eom Eom, Lee Lee, Kim Kim, Suk Suk
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