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Dev Comp Immunol. 2019 Feb;91:115-122. doi: 10.1016/j.dci.2018.10.013. Epub 2018 Oct 30.

Toll-like receptor ligand-dependent inflammatory responses in chick skeletal muscle myoblasts.

Author information

1
Department of Agriculture, Graduate School of Science and Technology, Shinshu University, Japan.
2
Department of Agriculture, Graduate School of Science and Technology, Shinshu University, Japan; Department of Agricultural and Life Science, Faculty of Agriculture, Shinshu University, Japan; Department of Interdisciplinary Genome Sciences and Cell Metabolism, Institute for Biomedical Sciences, Shinshu University, Japan.
3
Department of Agriculture, Graduate School of Science and Technology, Shinshu University, Japan; Department of Agricultural and Life Science, Faculty of Agriculture, Shinshu University, Japan.
4
Department of Agriculture, Graduate School of Science and Technology, Shinshu University, Japan; Department of Agricultural and Life Science, Faculty of Agriculture, Shinshu University, Japan; Department of Interdisciplinary Genome Sciences and Cell Metabolism, Institute for Biomedical Sciences, Shinshu University, Japan. Electronic address: ttakaya@shinshu-u.ac.jp.

Abstract

Toll-like receptors (TLRs) are a group of sensory receptors which are capable of recognizing a microbial invasion and activating innate immune system responses, including inflammatory responses, in both immune and non-immune cells. However, TLR functions in chick myoblasts, which are myogenic precursor cells contributing to skeletal muscle development and growth, have not been studied. Here, we report the expression patterns of TLR genes as well as TLR ligand-dependent transcriptions of interleukin (IL) genes in primary-cultured chick myoblasts. Almost TLR genes were expressed both in layer and broiler myoblasts but TLR1A was detected only in embryonic layer chick myoblasts. Chick TLR1/2 ligands, Pam3CSK4 and FSL-1, induced inflammatory ILs in both layer and broiler myoblasts but a TLR4 ligand, lipopolysaccharide, scarcely promoted. This is the first report on TLR ligand-dependent inflammatory responses in chick myoblasts, which may provide useful information to chicken breeding and meat production industries.

KEYWORDS:

Inflammatory response; Interleukin; Skeletal muscle myoblast; Toll-like receptor

PMID:
30389519
DOI:
10.1016/j.dci.2018.10.013
[Indexed for MEDLINE]

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