Both memory and CD45RA+/CD62L+ naive CD4+ T cells are infected in human immunodeficiency virus type 1-infected individuals

Mario A. Ostrowski, Tae Wook Chun, Shawn J. Justement, Ivette Motola, Michael A. Spinelli, Joseph Adelsberger, Linda A. Ehler, Stephanie B. Mizell, Claire W. Hallahan, Anthony S. Fauci

Research output: Contribution to journalArticle

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Abstract

Cellular activation is critical for the propagation of human immunodeficiency virus type 1 (HIV-1) infection. It has been suggested that truly naive CD4+ T cells are resistant to productive HIV-1 infection because of their constitutive resting state. Memory and naive CD4+ T-cell subsets from 11 HIV-1-infected individuals were isolated ex vivo by a combination of magnetic bead depletion and fluorescence-activated cell sorting techniques with stringent criteria of combined expression of CD45RA and CD62L to identify naive CD4+ T-cell subsets. In all patients HIV-1 provirus could be detected within naive CD45RA+/CD62L+ CD4+ T cells; in addition, replication-competent HIV-1 was isolated from these cells upon CD4+ T-cell stimulation in tissue cultures. Memory CD4+ T cells had a median of fourfold more replication-competent virus and a median of sixfold more provirus than naive CD4+ T cells. Overall, there was a median of 16-fold more integrated provirus identified in memory CD4+ T cells than in naive CD4+ T cells within a given patient. Interestingly, there was a trend toward equalization of vital loads in memory and naive CD4+ T-cell subsets in those patients who harbored CXCR4-using (syncytium-inducing) viruses. Within any given patient, there was no selective usage of a particular coreceptor by virus isolated from memory versus naive CD4+ T cells. Our findings suggest that naive CD4+ T cells may be a significant viral reservoir for HIV, particularly in those patients harboring CXCR4-using viruses.

Original languageEnglish
Pages (from-to)6430-6435
Number of pages6
JournalJournal of Virology
Volume73
Issue number8
StatePublished - Jul 24 1999
Externally publishedYes

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Human immunodeficiency virus 1
HIV-1
T-lymphocytes
T-Lymphocytes
Proviruses
T-Lymphocyte Subsets
proviruses
Virus Diseases
Viruses
viruses
Giant Cells
Virus Replication
Flow Cytometry
giant cells
HIV
infection
tissue culture
flow cytometry

ASJC Scopus subject areas

  • Immunology

Cite this

Ostrowski, M. A., Chun, T. W., Justement, S. J., Motola, I., Spinelli, M. A., Adelsberger, J., ... Fauci, A. S. (1999). Both memory and CD45RA+/CD62L+ naive CD4+ T cells are infected in human immunodeficiency virus type 1-infected individuals. Journal of Virology, 73(8), 6430-6435.

Both memory and CD45RA+/CD62L+ naive CD4+ T cells are infected in human immunodeficiency virus type 1-infected individuals. / Ostrowski, Mario A.; Chun, Tae Wook; Justement, Shawn J.; Motola, Ivette; Spinelli, Michael A.; Adelsberger, Joseph; Ehler, Linda A.; Mizell, Stephanie B.; Hallahan, Claire W.; Fauci, Anthony S.

In: Journal of Virology, Vol. 73, No. 8, 24.07.1999, p. 6430-6435.

Research output: Contribution to journalArticle

Ostrowski, MA, Chun, TW, Justement, SJ, Motola, I, Spinelli, MA, Adelsberger, J, Ehler, LA, Mizell, SB, Hallahan, CW & Fauci, AS 1999, 'Both memory and CD45RA+/CD62L+ naive CD4+ T cells are infected in human immunodeficiency virus type 1-infected individuals', Journal of Virology, vol. 73, no. 8, pp. 6430-6435.
Ostrowski MA, Chun TW, Justement SJ, Motola I, Spinelli MA, Adelsberger J et al. Both memory and CD45RA+/CD62L+ naive CD4+ T cells are infected in human immunodeficiency virus type 1-infected individuals. Journal of Virology. 1999 Jul 24;73(8):6430-6435.
Ostrowski, Mario A. ; Chun, Tae Wook ; Justement, Shawn J. ; Motola, Ivette ; Spinelli, Michael A. ; Adelsberger, Joseph ; Ehler, Linda A. ; Mizell, Stephanie B. ; Hallahan, Claire W. ; Fauci, Anthony S. / Both memory and CD45RA+/CD62L+ naive CD4+ T cells are infected in human immunodeficiency virus type 1-infected individuals. In: Journal of Virology. 1999 ; Vol. 73, No. 8. pp. 6430-6435.
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