Work

Polysaccharides Produced by the Mushroom Trametes robiniophila Murr Boosts the Sensitivity of Hepatoma Cells to Oxaliplatin via the miR-224-5p/ABCB1/P-gp Axis

Year: 2022

Type: article

Abstract: Aim: To investigate the mechanisms employed by PS-T (polysaccharides of Trametes, PS-T), the main active ingredient of Huaier granules, to improve the susceptibility of hepatoma cells to oxaliplatin (OXA). Methods: Cell proliferation in response to PS-T was determined both in vitro and in vivo. The effects of PS-T on miRNAs were analyzed with the use of a microarray. MiRNAs were screened under specific conditions (P < .05, log FoldChange > ABS [1.5]) and further silenced or overexpressed by liposome transfection. Levels of ABCB1 mRNA and P-gp were detected by qRT-PCR and western blot analysis, respectively. A dual fluorescence assay was performed to determine whether miRNA directly targets ABCB1. Results: PS-T enhanced the inhibitory effect of OXA in human hepatoma cells and xenografts. Among 5 up-regulated miRNAs, overexpression of only miR-224-5p inhibited the expression of ABCB1 mRNA and P-gp, while silencing of miR-224-5p had an opposite effect. Moreover, miR-224-5p can directly target the 3′-UTR of ABCB1. Conclusion: PS-T increases the sensitivity of human hepatoma cells to OXA via the miR-224-5p/ABCB1/P-gp axis.

Source: Integrative Cancer Therapies

DOI: 10.1177/15347354221090221

Authors: Yudong Gou, Xia Zheng, Wenming Li, Hongyu Deng, Shukui Qin

Institutions: Nanjing University of Chinese Medicine, Nanjing General Hospital of Nanjing Military Command, Guangzhou University of Chinese Medicine

Language: English

Topic: Drug Transport and Resistance Mechanisms

Subfield: Oncology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $2,000