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CCR5 usage by CCL5 induces a selective leukocyte recruitment in human skin xenografts in vivo.

CCR5 usage by CCL5 induces a selective leukocyte recruitment in human skin xenografts in vivo.
CCR5 usage by CCL5 induces a selective leukocyte recruitment in human skin xenografts in vivo.
CCR5 is one of the major inflammatory chemokine receptors with potential therapeutical applications in humans. However, the redundancy of chemokines and their receptors, and the species specificity of chemokine receptor antagonists pose challenges to understanding of the role they play in pharmacological situations. To address this question, we used a humanized severe combined immunodeficient mouse model grafted with human skin and autologous leukocytes, and evaluated the effect of a blocking antibody against human CCR5, on CCL5-induced cutaneous leukocyte recruitment in vivo. At baseline, CCL5 induced a significant recruitment of T cells mainly of the memory phenotype, of monocytes/macrophages, eosinophils, and IFN-gamma(+) but not IL-4(+) and IL-5(+) cells. In vivo, anti-CCR5 antibody was able to almost completely inhibit the recruitment of monocytes/macrophages and T-helper (Th)1-type cells to inhibit partially the attraction of memory T cells, but had no effect on eosinophil infiltration, although all these cell types express other CCL5 binding chemokine receptors than CCR5. These results indicate that the in vivo environment regulates target cell specificity of CCL5 leading to differential cell recruitment, suggesting that antagonizing CCR5 receptor may be of therapeutic value in diseases such as acquired immuno deficiency syndrome, where CCL5/CCR5, monocytes, and Th1-type cells play a predominant role.
0022-202X
2057-2064
de Nada, P.
4449cd19-1089-4d7b-934f-bb8045cc5319
Chenivesse, C.
c60beb2b-852a-4a3c-afa1-8210016be50c
Gilet, J.
9db79b71-ba0d-4fb5-b200-6c7495d637e4
Porte, H.
4069c101-f45b-4c39-ba5a-12aa5fc69e03
Vorng, H.
c6af7c11-861b-4263-9aa7-bc2b6e4042bb
Chang, Y.
e2c39dfe-7510-4f82-a929-e347c4bc85b3
Walls, A.F.
aaa7e455-0562-4b4c-94f5-ec29c74b1bfe
Wallaert, B.
ceaccc91-fc40-4533-8620-4f30e635aee2
Tonnel, A.B.
a01ca6a3-9c70-4d7e-9aa7-d5632aa0a975
Tsicopoulos, A.
0df2a5b4-f779-4aa8-beca-4f5149443361
Zerwes, H.G.
f8305101-9b53-4dde-aa0a-f63210d45112
de Nada, P.
4449cd19-1089-4d7b-934f-bb8045cc5319
Chenivesse, C.
c60beb2b-852a-4a3c-afa1-8210016be50c
Gilet, J.
9db79b71-ba0d-4fb5-b200-6c7495d637e4
Porte, H.
4069c101-f45b-4c39-ba5a-12aa5fc69e03
Vorng, H.
c6af7c11-861b-4263-9aa7-bc2b6e4042bb
Chang, Y.
e2c39dfe-7510-4f82-a929-e347c4bc85b3
Walls, A.F.
aaa7e455-0562-4b4c-94f5-ec29c74b1bfe
Wallaert, B.
ceaccc91-fc40-4533-8620-4f30e635aee2
Tonnel, A.B.
a01ca6a3-9c70-4d7e-9aa7-d5632aa0a975
Tsicopoulos, A.
0df2a5b4-f779-4aa8-beca-4f5149443361
Zerwes, H.G.
f8305101-9b53-4dde-aa0a-f63210d45112

de Nada, P., Chenivesse, C., Gilet, J., Porte, H., Vorng, H., Chang, Y., Walls, A.F., Wallaert, B., Tonnel, A.B., Tsicopoulos, A. and Zerwes, H.G. (2006) CCR5 usage by CCL5 induces a selective leukocyte recruitment in human skin xenografts in vivo. Journal of Investigative Dermatology, 126 (9), 2057-2064. (doi:10.1038/sj.jid.5700369).

Record type: Article

Abstract

CCR5 is one of the major inflammatory chemokine receptors with potential therapeutical applications in humans. However, the redundancy of chemokines and their receptors, and the species specificity of chemokine receptor antagonists pose challenges to understanding of the role they play in pharmacological situations. To address this question, we used a humanized severe combined immunodeficient mouse model grafted with human skin and autologous leukocytes, and evaluated the effect of a blocking antibody against human CCR5, on CCL5-induced cutaneous leukocyte recruitment in vivo. At baseline, CCL5 induced a significant recruitment of T cells mainly of the memory phenotype, of monocytes/macrophages, eosinophils, and IFN-gamma(+) but not IL-4(+) and IL-5(+) cells. In vivo, anti-CCR5 antibody was able to almost completely inhibit the recruitment of monocytes/macrophages and T-helper (Th)1-type cells to inhibit partially the attraction of memory T cells, but had no effect on eosinophil infiltration, although all these cell types express other CCL5 binding chemokine receptors than CCR5. These results indicate that the in vivo environment regulates target cell specificity of CCL5 leading to differential cell recruitment, suggesting that antagonizing CCR5 receptor may be of therapeutic value in diseases such as acquired immuno deficiency syndrome, where CCL5/CCR5, monocytes, and Th1-type cells play a predominant role.

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Published date: 15 June 2006

Identifiers

Local EPrints ID: 59286
URI: http://eprints.soton.ac.uk/id/eprint/59286
ISSN: 0022-202X
PURE UUID: 7e53bda8-bb8c-4708-8904-71410f4e769d
ORCID for A.F. Walls: ORCID iD orcid.org/0000-0003-4803-4595

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Date deposited: 02 Sep 2008
Last modified: 16 Mar 2024 02:38

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Contributors

Author: P. de Nada
Author: C. Chenivesse
Author: J. Gilet
Author: H. Porte
Author: H. Vorng
Author: Y. Chang
Author: A.F. Walls ORCID iD
Author: B. Wallaert
Author: A.B. Tonnel
Author: A. Tsicopoulos
Author: H.G. Zerwes

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