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Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation
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| Zeitschriftentitel: | Clinical and Experimental Immunology |
|---|---|
| Personen und Körperschaften: | , , , , , , , |
| In: | Clinical and Experimental Immunology, 153, 2008, 2, S. 221-230 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Oxford University Press (OUP)
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| Schlagwörter: |
| author_facet |
Lieke, T Nylén, S Eidsmo, L McMaster, W R Mohammadi, A M Khamesipour, A Berg, L Akuffo, H Lieke, T Nylén, S Eidsmo, L McMaster, W R Mohammadi, A M Khamesipour, A Berg, L Akuffo, H |
|---|---|
| author |
Lieke, T Nylén, S Eidsmo, L McMaster, W R Mohammadi, A M Khamesipour, A Berg, L Akuffo, H |
| spellingShingle |
Lieke, T Nylén, S Eidsmo, L McMaster, W R Mohammadi, A M Khamesipour, A Berg, L Akuffo, H Clinical and Experimental Immunology Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation Immunology Immunology and Allergy |
| author_sort |
lieke, t |
| spelling |
Lieke, T Nylén, S Eidsmo, L McMaster, W R Mohammadi, A M Khamesipour, A Berg, L Akuffo, H 0009-9104 1365-2249 Oxford University Press (OUP) Immunology Immunology and Allergy http://dx.doi.org/10.1111/j.1365-2249.2008.03687.x <jats:title>Summary</jats:title><jats:p>Natural killer (NK) cells contribute to immunity as the first line of defence in numerous infections by early cytokine secretion and cytotoxicity. In Leishmania infection, NK cells contribute with interferon-γ and may assist in directing the immune response towards T helper type 1, which is essential for successful control of the parasites. Thus, NK cells may play an important role in both resistance and control of the infection. However, during Leishmania infection NK cells show signs of suppression. To explore the reason for this suppression, we exposed naive and interleukin (IL)-2 activated NK cells directly to promastigotes of Leishmania major in vitro. As a rapid consequence of contact between naive NK cells and promastigotes, expression of NK cell receptors show significant changes. We identify one of the major surface molecules of promastigotes, glycoprotein (gp) 63, as an important agent for these suppressive effects by using promastigotes of a gp63ko strain of L. major. Furthermore, proliferation of IL-2-activated purified NK cells is suppressed after exposure to the wild-type but not to gp63ko promastigotes. However, gp63ko L. major induced no NK cell proliferation when NK cells were co-cultured with peripheral blood mononuclear cells populations such as CD14+ monocytes or T cells.</jats:p> Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation Clinical and Experimental Immunology |
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10.1111/j.1365-2249.2008.03687.x |
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| title |
Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_unstemmed |
Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_full |
Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_fullStr |
Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_full_unstemmed |
Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_short |
Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_sort |
leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| topic |
Immunology Immunology and Allergy |
| url |
http://dx.doi.org/10.1111/j.1365-2249.2008.03687.x |
| publishDate |
2008 |
| physical |
221-230 |
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<jats:title>Summary</jats:title><jats:p>Natural killer (NK) cells contribute to immunity as the first line of defence in numerous infections by early cytokine secretion and cytotoxicity. In Leishmania infection, NK cells contribute with interferon-γ and may assist in directing the immune response towards T helper type 1, which is essential for successful control of the parasites. Thus, NK cells may play an important role in both resistance and control of the infection. However, during Leishmania infection NK cells show signs of suppression. To explore the reason for this suppression, we exposed naive and interleukin (IL)-2 activated NK cells directly to promastigotes of Leishmania major in vitro. As a rapid consequence of contact between naive NK cells and promastigotes, expression of NK cell receptors show significant changes. We identify one of the major surface molecules of promastigotes, glycoprotein (gp) 63, as an important agent for these suppressive effects by using promastigotes of a gp63ko strain of L. major. Furthermore, proliferation of IL-2-activated purified NK cells is suppressed after exposure to the wild-type but not to gp63ko promastigotes. However, gp63ko L. major induced no NK cell proliferation when NK cells were co-cultured with peripheral blood mononuclear cells populations such as CD14+ monocytes or T cells.</jats:p> |
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| author | Lieke, T, Nylén, S, Eidsmo, L, McMaster, W R, Mohammadi, A M, Khamesipour, A, Berg, L, Akuffo, H |
| author_facet | Lieke, T, Nylén, S, Eidsmo, L, McMaster, W R, Mohammadi, A M, Khamesipour, A, Berg, L, Akuffo, H, Lieke, T, Nylén, S, Eidsmo, L, McMaster, W R, Mohammadi, A M, Khamesipour, A, Berg, L, Akuffo, H |
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| description | <jats:title>Summary</jats:title><jats:p>Natural killer (NK) cells contribute to immunity as the first line of defence in numerous infections by early cytokine secretion and cytotoxicity. In Leishmania infection, NK cells contribute with interferon-γ and may assist in directing the immune response towards T helper type 1, which is essential for successful control of the parasites. Thus, NK cells may play an important role in both resistance and control of the infection. However, during Leishmania infection NK cells show signs of suppression. To explore the reason for this suppression, we exposed naive and interleukin (IL)-2 activated NK cells directly to promastigotes of Leishmania major in vitro. As a rapid consequence of contact between naive NK cells and promastigotes, expression of NK cell receptors show significant changes. We identify one of the major surface molecules of promastigotes, glycoprotein (gp) 63, as an important agent for these suppressive effects by using promastigotes of a gp63ko strain of L. major. Furthermore, proliferation of IL-2-activated purified NK cells is suppressed after exposure to the wild-type but not to gp63ko promastigotes. However, gp63ko L. major induced no NK cell proliferation when NK cells were co-cultured with peripheral blood mononuclear cells populations such as CD14+ monocytes or T cells.</jats:p> |
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| imprint_str_mv | Oxford University Press (OUP), 2008 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229 |
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| spelling | Lieke, T Nylén, S Eidsmo, L McMaster, W R Mohammadi, A M Khamesipour, A Berg, L Akuffo, H 0009-9104 1365-2249 Oxford University Press (OUP) Immunology Immunology and Allergy http://dx.doi.org/10.1111/j.1365-2249.2008.03687.x <jats:title>Summary</jats:title><jats:p>Natural killer (NK) cells contribute to immunity as the first line of defence in numerous infections by early cytokine secretion and cytotoxicity. In Leishmania infection, NK cells contribute with interferon-γ and may assist in directing the immune response towards T helper type 1, which is essential for successful control of the parasites. Thus, NK cells may play an important role in both resistance and control of the infection. However, during Leishmania infection NK cells show signs of suppression. To explore the reason for this suppression, we exposed naive and interleukin (IL)-2 activated NK cells directly to promastigotes of Leishmania major in vitro. As a rapid consequence of contact between naive NK cells and promastigotes, expression of NK cell receptors show significant changes. We identify one of the major surface molecules of promastigotes, glycoprotein (gp) 63, as an important agent for these suppressive effects by using promastigotes of a gp63ko strain of L. major. Furthermore, proliferation of IL-2-activated purified NK cells is suppressed after exposure to the wild-type but not to gp63ko promastigotes. However, gp63ko L. major induced no NK cell proliferation when NK cells were co-cultured with peripheral blood mononuclear cells populations such as CD14+ monocytes or T cells.</jats:p> Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation Clinical and Experimental Immunology |
| spellingShingle | Lieke, T, Nylén, S, Eidsmo, L, McMaster, W R, Mohammadi, A M, Khamesipour, A, Berg, L, Akuffo, H, Clinical and Experimental Immunology, Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation, Immunology, Immunology and Allergy |
| title | Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_full | Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_fullStr | Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_full_unstemmed | Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_short | Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_sort | leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| title_unstemmed | Leishmania surface protein gp63 binds directly to human natural killer cells and inhibits proliferation |
| topic | Immunology, Immunology and Allergy |
| url | http://dx.doi.org/10.1111/j.1365-2249.2008.03687.x |