Abstract
The rapid increase in the incidence of obesity contributes to a parallel increase in nonalcoholic steatohepatitis (NASH). Monocyte-derived macrophages, recruited from the bone marrow to the liver, promote NASH-related inflammation and fibrosis. In addition, adipose tissue macrophages (ATMs) release pro-inflammatory cytokines (PICs) which stimulate adipose tissue lipolysis liberating free fatty acids (FFAs) that can accumulate in the liver as triglycerides (TGs), thereby inducing steatosis. As such, bone marrow-derived macrophages (BMDMs) function as an essential tool to study the pathogenesis of NASH. BMDMs are primary bone marrow-derived cells which are differentiated into macrophages in vitro in the presence of growth factors. Macrophage colony-stimulating factor (M-CSF) is required for the proliferation and differentiation of committed myeloid progenitors into cells of the macrophage/monocyte lineage. Here, we describe a protocol for the isolation of mouse bone marrow cells and subsequent macrophage differentiation in which bone marrow cells are cultured in the presence of M-CSF, supplemented either by conditioned medium from L929 cells or in purified form. The efficiency of the differentiation is confirmed by immunofluorescent staining of macrophage surface antigen F4/80. The BMDMs serve as an excellent ex vivo model for a variety of studies, including hepatocyte-macrophage and adipocyte-macrophage cross-talk regulating NASH.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Friedman SL, Neuschwander-Tetri BA et al (2018) Mechanisms of NAFLD development and therapeutic strategies. Nat Med 24:908–922
Lefere S, Tacke F (2019) Macrophages in obesity and non-alcoholic fatty liver disease: Crosstalk with metabolism. JHEP Rep 1:30–43
Pellicoro A, Ramachandran P, Iredale JP, Fallowfield JA (2014) Liver fibrosis and repair: immune regulation of wound healing in a solid organ. Nat Rev Immunol 14:181–194
Fruhbeck G, Mendez-Gimenez L, Fernandez-Formoso JA et al (2014) Regulation of adipocyte lipolysis. Nutr Res Rev 27:63–93
Grove JE, Bruscia E, Krause DS (2004) Plasticity of bone marrow-derived stem cells. Stem Cells 22:487–500
Lin HH, Faunce DE, Stacey M et al (2005) The macrophage F4/80 receptor is required for the induction of antigen-specific efferent regulatory T cells in peripheral tolerance. J Exp Med 201:1615–1625
Kanters E, Pasparakis M, Gijbels MJ et al (2003) Inhibition of NF-kappaB activation in macrophages increases atherosclerosis in LDL receptor-deficient mice. J Clin Invest 112:1176–1185
Doyle SE, O’Connell RM, Miranda GA et al (2004) Toll-like receptors induce a phagocytic gene program through p38. J Exp Med 199:81–90
Cho YJ, Cunnick JM, Yi SJ, Kaartinen V et al (2007) Abr and Bcr, two homologous Rac GTPase-activating proteins, control multiple cellular functions of murine macrophages. Mol Cell Biol 27:899–911
Acknowledgments
This work was supported in part by the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) under Grant 1R01DK107451-01A1, the National Cancer Institute (NCI) under Grants 1R01CA230561-01A1, 1R01CA240004-01, and 1R01CA244993-01, and the Department of Defense (DOD) under Grant CA170048.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature
About this protocol
Cite this protocol
Mendoza, R., Banerjee, I., Manna, D., Reghupaty, S.C., Yetirajam, R., Sarkar, D. (2022). Mouse Bone Marrow Cell Isolation and Macrophage Differentiation. In: Sarkar, D. (eds) Non-Alcoholic Steatohepatitis. Methods in Molecular Biology, vol 2455. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-2128-8_8
Download citation
DOI: https://doi.org/10.1007/978-1-0716-2128-8_8
Published:
Publisher Name: Humana, New York, NY
Print ISBN: 978-1-0716-2127-1
Online ISBN: 978-1-0716-2128-8
eBook Packages: Springer Protocols