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


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


  • eng

Conference Location

  • United States