| |
|
|
|
|
|
|
|||
|
Blood, 15 April 2006, Vol. 107, No. 8, pp. 3081-3083. Prepublished online as a Blood First Edition Paper on December 20, 2005; DOI 10.1182/blood-2005-09-3636.
CLINICAL TRIALS AND OBSERVATIONS Expansion of CD1d-restricted NKT cells in patients with primary HIV-1 infection treated with interleukin-2From the Center for Infection Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden; the Gladstone Institutes of Virology and Immunology, University of California, San Francisco; the Department of Medicine, University of California, San Francisco; and the San Francisco General Hospital, CA.
Innate CD1d-restricted natural killer T (NKT) cells are infected and lost in HIV-1infected patients, and this could contribute to HIV-1 pathogenesis because NKT cells play an important role in directing both adaptive and innate immunity. Administration of interleukin-2 (IL-2) to HIV-1infected patients leads to substantial and sustained CD4+ T-cell expansion, involving both naive and memory cells. We investigated whether IL-2 treatment could restore the NKT cell compartment in patients with primary HIV-1 infection. We show that IL-2 combined with effective antiretroviral therapy (ART) resulted in significant expansion of CD1d-restricted NKT cells. Expansion occurred in both the CD4 and CD4+ subsets of NKT cells, and expanded cells expressed the CD161 maturation marker while expression of the HIV coreceptor CCR5 was reduced. These data indicate that IL-2 treatment in combination with effective ART is beneficial for the restoration of innate NKT cell immunity in patients with primary HIV-1 infection.
Related Article in Blood Online:
This article has been cited by other articles:
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Copyright © 2006 by American Society of Hematology Online ISSN: 1528-0020 | |||||||||