In Vivo Overexpression of IL-13 Receptor Alpha2 Chain Inhibits Tumorigenicity of Human Breast and Pancreatic Tumors in Immunodeficient Mice
Overview
General Medicine
Authors
Affiliations
Interleukin 13 receptor alpha2 (IL-13R(alpha)2) chain is highly expressed on some tumor cell lines and primary cell cultures. This receptor chain plays an important role in ligand binding and internalization. To determine the functional significance of overexpression of this chain, we stably transfected IL-13R(alpha)2 chain in human breast (MDA-MB-231) and pancreatic (PANC-1) cancer cell lines that naturally do not express this chain. There was no difference in growth between vector only transfected and IL-13R(alpha)2 chain transfected cells in vitro. However, surprisingly, in immunodeficient mice, tumorigenicity was profoundly inhibited in IL-13R(alpha)2 chain overexpressing tumors. Because breast tumors that grew later showed loss of IL-13R(alpha)2 gene expression, lack of tumorigenicity correlated positively with IL-13R(alpha)2 chain expression. Inflammatory cells including neutrophils and macrophages were identified in IL-13R(alpha)2 overexpressing regressing tumors and neutrophils were found to produce IL-13. IL-13 showed a modest antitumor activity to IL-13R(alpha)2 chain overexpressing tumors in vitro and in vivo. Furthermore, IL-13R(alpha)2 chain overexpressing tumors constitutively produced IL-8 that has been shown to have antitumor effect. These results establish a novel function of a cytokine receptor chain and further suggest that the presence of this chain on tumor cells by itself may play a key role in tumorigenicity.
Kashyap D, Salman H Int J Mol Sci. 2024; 25(7).
PMID: 38612592 PMC: 11011362. DOI: 10.3390/ijms25073780.
Lee Y, Yu J, Kim K, Lee D, Son D, Lee H Mol Oncol. 2021; 16(2):508-526.
PMID: 34758182 PMC: 8763653. DOI: 10.1002/1878-0261.13138.
IL13Rα2 Promotes Proliferation and Outgrowth of Breast Cancer Brain Metastases.
Marquez-Ortiz R, Contreras-Zarate M, Tesic V, Alvarez-Eraso K, Kwak G, Littrell Z Clin Cancer Res. 2021; 27(22):6209-6221.
PMID: 34544797 PMC: 8595859. DOI: 10.1158/1078-0432.CCR-21-0361.
Involvement of IL-4, IL-13 and Their Receptors in Pancreatic Cancer.
Shi J, Song X, Traub B, Luxenhofer M, Kornmann M Int J Mol Sci. 2021; 22(6).
PMID: 33804263 PMC: 8000536. DOI: 10.3390/ijms22062998.
de Menezes W, Silva V, Gomes I, Rosa M, Spina M, Carloni A Cells. 2020; 9(2).
PMID: 32093414 PMC: 7072758. DOI: 10.3390/cells9020492.