IL-6 Accelerates the Proliferation and Metastasis of Pancreatic Cancer Cells via the miR-455-5p/IGF-1R Axis
- 30 December 2022
- journal article
- research article
- Published by Mary Ann Liebert Inc in Cancer Biotherapy & Radiopharmaceuticals
Abstract
Background: Pancreatic cancer (PaC) is a highly malignant gastrointestinal tumor with invasive and metastatic characteristics. Interleukin-6 (IL-6), a negative prognostic marker, contributes to PaC progression. However, the mechanism of IL-6 in PaC is not yet fully understood. Methods: miR-455-5p levels were first tested by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) in PaC tissues or cells. Subsequently, PaC cell-related functions were identified through CCK-8, Transwell, and Western blotting. Changes in miR-455-5p and IGF-1R expression were confirmed using RT-qPCR and Western blotting. miR-455-5p methylation was assessed by bisulfite sequencing PCR. Results: The authors discovered that miR-455-5p was expressed at low levels in PaC tissues and cells, and miR-455-5p expression was observably reduced by IL-6 in PaC cells. In addition, IL-6 dramatically induces miR-455-5p methylation in PaC cells. Functionally, the data revealed that IL-6 could facilitate the malignant properties of PaC cells, including proliferation, epithelial–mesenchymal transition, and metastasis. The authors found that miR-455-5p could suppress the progression of PaC cells by downregulating IGF-1R in PaC cells. Mechanistically, IL-6 downregulated miR-455-5p and upregulated IGF-1R, and miR-455-5p reduced IGF-1R expression through targeted binding. Conclusions: The authors demonstrated that the miR-455-5p/IGF-1R axis is necessary for the induction of IL-6 in PaC progression. Therefore, this study might provide a theoretical basis for the application of the IL-6/miR-455-5p/IGF-1R axis in the clinical therapy of PaC.Keywords
This publication has 47 references indexed in Scilit:
- IGF-1R: SUMO-ing its weight in chemoresistant colorectal cancerBritish Journal of Cancer, 2017
- Interleukin (IL-6) ImmunotherapyCold Spring Harbor Perspectives in Biology, 2017
- Complement component 1, q subcomponent binding protein (C1QBP) in lipid rafts mediates hepatic metastasis of pancreatic cancer by regulating IGF‐1/IGF‐1R signalingInternational Journal of Cancer, 2017
- Interleukin-6 Family CytokinesCold Spring Harbor Perspectives in Biology, 2017
- Current and future therapies for advanced pancreatic cancerJournal of Surgical Oncology, 2017
- MicroRNA therapeutics: towards a new era for the management of cancer and other diseasesNature Reviews Drug Discovery, 2017
- miR-455-5p functions as a potential oncogene by targeting galectin-9 in colon cancerOncology Letters, 2017
- MiR-455-5p acts as a novel tumor suppressor in gastric cancer by down-regulating RAB18Gene, 2016
- IL-6 and PD-L1 antibody blockade combination therapy reduces tumour progression in murine models of pancreatic cancerGut, 2016
- Pancreatic cancer: yesterday, today and tomorrowFuture Oncology, 2016