Preservation of memory CD4(+) T lymphocytes in breast milk of lactating rhesus monkeys during acute simian immunodeficiency virus infection.

Published

Journal Article

Acute human immunodeficiency virus (HIV) or simian immunodeficiency virus (SIV) infection is associated with a massive depletion of memory CD4(+) T lymphocytes in the gastrointestinal tract. To define the dynamics of the CD4(+) T lymphocyte subpopulations in breast milk during acute HIV or SIV infection, lymphocyte populations were monitored in blood and milk of 4 Mamu-A*01(+) rhesus monkeys after SIVmac251 inoculation. Strikingly, although the CD4(+) T lymphocytes in blood were depleted during the peak of viremia, the milk CD4(+) T lymphocyte counts remained unchanged, despite active virus replication in the breast milk compartment. Moreover, CD4(+) memory T lymphocytes were preserved in breast milk during acute infection. CD4(+) T lymphocytes in breast milk and other mucosal compartments of uninfected monkeys were similar in their memory phenotype, activation status, and chemokine (C-C motif) receptor 5 expression. Interestingly, the number and proportion of effector CD8(+) T lymphocytes in milk were increased during acute SIV infection, suggesting effective control of virus-mediated CD4(+) T lymphocyte destruction in the breast milk compartment.

Full Text

Duke Authors

Cited Authors

  • Permar, SR; Kang, HH; Carville, A; Wilks, AB; Mansfield, KG; Rao, SS; Letvin, NL

Published Date

  • January 15, 2010

Published In

Volume / Issue

  • 201 / 2

Start / End Page

  • 302 - 310

PubMed ID

  • 20001855

Pubmed Central ID

  • 20001855

Electronic International Standard Serial Number (EISSN)

  • 1537-6613

Digital Object Identifier (DOI)

  • 10.1086/649229

Language

  • eng

Conference Location

  • United States