Expansion of CD16-Negative Natural Killer Cells in the Peripheral Blood of Patients with Metastatic Melanoma

Altered natural killer (NK) cell function is a component of the global immune dysregulation that occurs in advanced malignancies. Another condition associated with altered NK homeostasis is normal pregnancy, where robust infiltration with CD16− CD9+ NK cells can be identified in decidual tissues, al...

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Main Authors: Shernan G. Holtan, Douglas J. Creedon, Michael A. Thompson, Wendy K. Nevala, Svetomir N. Markovic
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Clinical and Developmental Immunology
Online Access:http://dx.doi.org/10.1155/2011/316314
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author Shernan G. Holtan
Douglas J. Creedon
Michael A. Thompson
Wendy K. Nevala
Svetomir N. Markovic
author_facet Shernan G. Holtan
Douglas J. Creedon
Michael A. Thompson
Wendy K. Nevala
Svetomir N. Markovic
author_sort Shernan G. Holtan
collection DOAJ
description Altered natural killer (NK) cell function is a component of the global immune dysregulation that occurs in advanced malignancies. Another condition associated with altered NK homeostasis is normal pregnancy, where robust infiltration with CD16− CD9+ NK cells can be identified in decidual tissues, along with a concomitant expansion of CD16− NK cells in the maternal peripheral blood. In metastatic melanoma, we identified a similar expansion of peripheral blood CD16− NK cells (median 7.4% in 41 patients with melanoma compared with 3.0% in 29 controls, P<.001). A subset of NK cells in melanoma patients also expresses CD9, which is characteristically expressed only on NK cells within the female reproductive tract. Expansion of CD16− NK cells was associated with elevated plasma transforming growth factor-beta (TGF-β levels (median 20 ng/ml, Spearman's ρ=0.81,P=.015)). These findings suggest the possibility of exploring anti-TGF-β therapy to restore NK function in melanoma.
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institution Kabale University
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series Clinical and Developmental Immunology
spelling doaj-art-13e9ff5a03e648a4a14a3d06c226a5212025-02-03T01:22:19ZengWileyClinical and Developmental Immunology1740-25221740-25302011-01-01201110.1155/2011/316314316314Expansion of CD16-Negative Natural Killer Cells in the Peripheral Blood of Patients with Metastatic MelanomaShernan G. Holtan0Douglas J. Creedon1Michael A. Thompson2Wendy K. Nevala3Svetomir N. Markovic4Division of Hematology, Department of Medicine, Mayo Clinic Graduate School of Medicine, 200 First Street SW, Rochester, MN 55905, USADepartment of Obstetrics and Gynecology, Mayo Clinic Graduate School of Medicine, 200 First Street SW, Rochester, MN 55905, USADepartment of Immunology, Mayo Clinic Graduate School of Medicine, 200 First Street SW, Rochester, MN 55905, USADepartment of Immunology, Mayo Clinic Graduate School of Medicine, 200 First Street SW, Rochester, MN 55905, USADivision of Hematology, Department of Medicine, Mayo Clinic Graduate School of Medicine, 200 First Street SW, Rochester, MN 55905, USAAltered natural killer (NK) cell function is a component of the global immune dysregulation that occurs in advanced malignancies. Another condition associated with altered NK homeostasis is normal pregnancy, where robust infiltration with CD16− CD9+ NK cells can be identified in decidual tissues, along with a concomitant expansion of CD16− NK cells in the maternal peripheral blood. In metastatic melanoma, we identified a similar expansion of peripheral blood CD16− NK cells (median 7.4% in 41 patients with melanoma compared with 3.0% in 29 controls, P<.001). A subset of NK cells in melanoma patients also expresses CD9, which is characteristically expressed only on NK cells within the female reproductive tract. Expansion of CD16− NK cells was associated with elevated plasma transforming growth factor-beta (TGF-β levels (median 20 ng/ml, Spearman's ρ=0.81,P=.015)). These findings suggest the possibility of exploring anti-TGF-β therapy to restore NK function in melanoma.http://dx.doi.org/10.1155/2011/316314
spellingShingle Shernan G. Holtan
Douglas J. Creedon
Michael A. Thompson
Wendy K. Nevala
Svetomir N. Markovic
Expansion of CD16-Negative Natural Killer Cells in the Peripheral Blood of Patients with Metastatic Melanoma
Clinical and Developmental Immunology
title Expansion of CD16-Negative Natural Killer Cells in the Peripheral Blood of Patients with Metastatic Melanoma
title_full Expansion of CD16-Negative Natural Killer Cells in the Peripheral Blood of Patients with Metastatic Melanoma
title_fullStr Expansion of CD16-Negative Natural Killer Cells in the Peripheral Blood of Patients with Metastatic Melanoma
title_full_unstemmed Expansion of CD16-Negative Natural Killer Cells in the Peripheral Blood of Patients with Metastatic Melanoma
title_short Expansion of CD16-Negative Natural Killer Cells in the Peripheral Blood of Patients with Metastatic Melanoma
title_sort expansion of cd16 negative natural killer cells in the peripheral blood of patients with metastatic melanoma
url http://dx.doi.org/10.1155/2011/316314
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