The Authors wish to thank B.C. Ruetgen (Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine in Vienna) for providing CLBL-1 cell line, and Y. Fujino and H. Tsujimoto (University of Tokyo, Department of Veterinary Internal Medicine) for providing the CL-1 cell line. The Authors are grateful for the financial support from the National Key Research and Development Program of China (No. 2016YFD0501209) and Department of Education of Hunan Province, China (Key project No.17A098). Publication was supported by Wrocław Centre of Biotechnology, programme: the Leading National Research Centre (KNOW) for years 2014-2018.