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CpG oligodeoxynucleotides stimulate cord blood mononuclear cells to produce immunoglobulins

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

CpG oligodeoxynucleotides (ODNs) stimulate adult B cells leading to cellular proliferation and immunoglobulin production. It is unknown if CpG-ODNs similarly stimulate neonatal human B cells. Neonates have immature immune responses and are poorly responsive to thymus independent antigens such as polysaccharides. We determined umbilical cord cells' response to CpG-ODNs. Adult and umbilical cord B cells produced similar amounts of IgM (adult 1371 ± 352 vs. cord 1873 ± 1084 ng/ml) in response to CpG-ODN stimulation. Although CpG-ODN was able to stimulate adult IgG and IgA production, cord cells produced less IgG (153 ± 58 vs. 10 ± 2.5 ng/ml) and no detectable IgA upon CpG-ODN stimulation. CpG ODN stimulated IgM production from adult CD27-negative B cells which may account for their ability to stimulate the mostly naïve cord B cells. The polyclonal IgM response included pneumococcal polysaccharide antigen-specific antibodies. CpG-ODNs may be useful as neonatal vaccine adjuvants for polysaccharide antigens that are otherwise non-immunogenic.

Original languageEnglish
Pages (from-to)236-245
Number of pages10
JournalClinical Immunology
Volume116
Issue number3
DOIs
StatePublished - Sep 2005

Bibliographical note

Funding Information:
This study was supported by a Children's Miracle Network Grant to Cheri Landers and NIH grants AG05731 and AI21490 to Subbarao Bondada.

Funding

This study was supported by a Children's Miracle Network Grant to Cheri Landers and NIH grants AG05731 and AI21490 to Subbarao Bondada.

FundersFunder number
National Institutes of Health (NIH)AG05731
National Institute of Allergy and Infectious DiseasesR01AI021490

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 3 - Good Health and Well-being
      SDG 3 Good Health and Well-being

    Keywords

    • B cell
    • CpG ODN
    • Immunoglobulins
    • Neonate
    • Pneumococcus
    • Polysaccharides

    ASJC Scopus subject areas

    • Immunology and Allergy
    • Immunology

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