Low ‑intensity ultrasound enhances the antitumor effects of doxorubicin on hepatocellular carcinoma cells through the ROS‑miR‑21‑PTEN axis.

Low‑intensity ultrasound enhances the antitumor effects of doxorubicin on hepatocellular carcinoma cells through the ROS‑miR‑21‑PTEN axis. Mol Med Rep. 2020 Jan 13;: Authors: Xia C, Zeng H, Zheng Y Abstract Hepatocellular carcinoma (HCC) is a type of liver cancer and is a leading cause of cancer‑associated mortality. In China, ~466,000 patients are diagnosed with HCC and it is responsible for ~422,000 cases of mortality each year. Surgery is the most effective treatment available; however it is only suitable for patients with early‑stage HCC. Chemotherapy has been confirmed as a necessary treatment for patients with advanced HCC, although drug resistance may limit its clinical outcome. Low intensity ultrasound (LIUS) represents a novel therapeutic approach to treat patients with HCC; however, its underlying molecular mechanism remains unclear. In the present study, cell viability, apoptosis and reactive oxygen species (ROS) generation were determined via Cell Counting Kit‑8, flow cytometry and 2',7'‑dichlorofluorescein diacetate assays, respectively. The expression of miRNA in HCC cells following exposure to LIUS and doxorubicin (Dox) was analyzed using a microarray and reverse transcription‑quantitative polymerase chain reaction analysis. It was revealed treatment with LIUS in combination with Dox was able to induce apoptosis of Huh7 cells, increasing the intracellular levels of reactive oxygen species (ROS) and...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research