Postnatal expansion of the natural killer and killer cell population in humans identified by the monoclonal HNK-1 antibody

T. Abo, M. D. Cooper, C. M. Balch

Research output: Contribution to journalArticlepeer-review

Abstract

Human natural killer (NK) and killer (K) cells were directly enumerated using a monoclonal antibody (HNK-1) and an immunofluorescence assay. The frequency of cells bearing surface HNK-1 antigen was very low in the newborn (<1.0%) and increased progressively through childhood and into adult life. This was correlated with an age-related increase in functional NK and K cell activities. Males had a slightly higher proportion of HNK-1+ cells than females. In addition to HNK-1 expression on the surface membrane, a prominent cytoplasmic expression of HNK-1 antigen was found in some but not all surface HNK-1+ cells. The cytoplasmic accumulation of HNK-1 molecules appeared to occur in more mature cells of this lineage.

Original languageEnglish (US)
Pages (from-to)321-326
Number of pages6
JournalJournal of Experimental Medicine
Volume155
Issue number1
DOIs
StatePublished - 1982
Externally publishedYes

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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