» Articles » PMID: 9366570

Impaired Monocyte Migration and Reduced Type 1 (Th1) Cytokine Responses in C-C Chemokine Receptor 2 Knockout Mice

Overview
Journal J Clin Invest
Specialty General Medicine
Date 1997 Nov 20
PMID 9366570
Citations 427
Authors
Affiliations
Soon will be listed here.
Abstract

Monocyte chemoattractant protein-1 (MCP-1) is a potent agonist for mononuclear leukocytes and has been implicated in the pathogenesis of atherosclerosis and granulomatous lung disease. To determine the role of MCP-1 and related family members in vivo, we used homologous recombination in embryonic stem cells to generate mice with a targeted disruption of C-C chemokine receptor 2 (CCR2), the receptor for MCP-1. CCR2-/- mice were born at the expected Mendelian ratios and developed normally. In response to thioglycollate, the recruitment of peritoneal macrophages decreased selectively. In in vitro chemotaxis assays, CCR2-/- leukocytes failed to migrate in response to MCP-1. Granulomatous lung disease was induced in presensitized mice by embolization with beads coupled to purified protein derivative (PPD) of Mycobacterium bovis. As compared with wild-type littermates, CCR2-/- mice had a decrease in granuloma size accompanied by a dramatic decrease in the level of interferon gamma in the draining lymph nodes. Production of interferon gamma was also decreased in PPD-sensitized splenocytes from CCR2-/- mice and in naive splenocytes activated by concanavalin A. We conclude that CCR2-/- mice have significant defects in both delayed-type hypersensitivity responses and production of Th1-type cytokines. These data suggest an important and unexpected role for CCR2 activation in modulating the immune response, as well as in recruiting monocytes/macrophages to sites of inflammation.

Citing Articles

The role of myeloid cell heterogeneity during spontaneous choroidal neovascularization in Vldlr knockout mice.

Rajesh A, Gong J, Chan K, Viniak R, Droho S, Kachar D J Neuroinflammation. 2025; 22(1):70.

PMID: 40055675 PMC: 11889776. DOI: 10.1186/s12974-025-03398-3.


CCL2/CCR2 Signalling in Mesenchymal Stem/Progenitor Cell Recruitment and Fracture Healing in Mice.

Kannan R, Koh A, Kent 3rd R, Bhutada K, Wasi F, Wagner L J Cell Mol Med. 2024; 28(24):e70300.

PMID: 39721002 PMC: 11669326. DOI: 10.1111/jcmm.70300.


Ezrin drives adaptation of monocytes to the inflamed lung microenvironment.

Gudneppanavar R, Di Pietro C, H Oz H, Zhang P, Cheng E, Huang P Cell Death Dis. 2024; 15(11):864.

PMID: 39613751 PMC: 11607083. DOI: 10.1038/s41419-024-07255-8.


Induction of a distinct macrophage population and protection from lung injury and fibrosis by Notch2 blockade.

Cruz Tleugabulova M, Melo S, Wong A, Arlantico A, Liu M, Webster J Nat Commun. 2024; 15(1):9575.

PMID: 39505846 PMC: 11541919. DOI: 10.1038/s41467-024-53700-9.


Alternations in inflammatory macrophage niche drive phenotypic and functional plasticity of Kupffer cells.

Huang H, Chen Y, Zhao C, Zheng X, Yu K, Yue J Nat Commun. 2024; 15(1):9337.

PMID: 39472435 PMC: 11522483. DOI: 10.1038/s41467-024-53659-7.


References
1.
Yla-Herttuala S, Lipton B, Rosenfeld M, Sarkioja T, Yoshimura T, Leonard E . Expression of monocyte chemoattractant protein 1 in macrophage-rich areas of human and rabbit atherosclerotic lesions. Proc Natl Acad Sci U S A. 1991; 88(12):5252-6. PMC: 51850. DOI: 10.1073/pnas.88.12.5252. View

2.
Grewal I, RUTLEDGE B, Fiorillo J, Gu L, Gladue R, Flavell R . Transgenic monocyte chemoattractant protein-1 (MCP-1) in pancreatic islets produces monocyte-rich insulitis without diabetes: abrogation by a second transgene expressing systemic MCP-1. J Immunol. 1997; 159(1):401-8. View

3.
Nelken N, Coughlin S, Gordon D, Wilcox J . Monocyte chemoattractant protein-1 in human atheromatous plaques. J Clin Invest. 1991; 88(4):1121-7. PMC: 295565. DOI: 10.1172/JCI115411. View

4.
Maze R, Sherry B, Kwon B, Cerami A, Broxmeyer H . Myelosuppressive effects in vivo of purified recombinant murine macrophage inflammatory protein-1 alpha. J Immunol. 1992; 149(3):1004-9. View

5.
Koch A, Kunkel S, Harlow L, Johnson B, Evanoff H, Haines G . Enhanced production of monocyte chemoattractant protein-1 in rheumatoid arthritis. J Clin Invest. 1992; 90(3):772-9. PMC: 329929. DOI: 10.1172/JCI115950. View