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Int Immunol. 2017 May 1;29(5):235-242. doi: 10.1093/intimm/dxx022.

Long-term survival of the mouse ES cell-derived mast cell, MEDMC-BRC6, in mast cell-deficient KitW-sh/W-sh mice.

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Department of Immunology, Faculty of Medicine.
Doctoral Program in Graduate School of Comprehensive Human Sciences.
Life Science Center of Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1, Ten-nodai, Tsukuba, Ibaraki 305-8575, Japan.
Cell Engineering Division, RIKEN BioResource Center, 3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan.


Mast cells (MCs) play pivotal roles in allergic reactions and the host defense against microbial infection through the IgE-dependent and IgE-independent signaling pathways. MC lines that can be analyzed both in vitro and in vivo would be useful for the study of MC-dependent immune responses. Here, we investigated the functional characteristics of a mouse embryonic stem cell-derived MC-like cell line, MEDMC-BRC6. The cell line expressed FcεRI and c-Kit and showed degranulation and production of inflammatory cytokines and chemokines, including TNF-α, IL-6 and MCP-1, upon cross-linking FcεRI with IgE. These cytokines and chemokines were also produced by the cell line by stimulation of TLR2 and TLR4. MEDMC-BRC6 survived in the peritoneal cavity and the ear skin for at least 6 months after the transfer into genetically compatible MC-deficient KitW-sh/W-sh mice, in which systemic anaphylaxis was successfully induced. Thus, MEDMC-BRC6 cells represent a potent tool for investigating the functions of MCs in vitro and in vivo.


FcεRI; IgE-dependent anaphylaxis; TLR2; TLR4; degranulation

[Indexed for MEDLINE]

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