Recognition of pneumocystis carinii antigens by local antibody-secreting cells following resolution of P. carinii pneumonia in mice

Francis Gigliotti, Beth A. Garvy, Constantine G. Haidaris, Allen G. Harmsen

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

To examine the repertoire of Pneumocystis carinii antigens recognized by antibody-secreting B cells from tracheobronchial lymph nodes isolated immediately following recovery from P. carinii pneumonia, monoclonal antibodies (MAbs) were produced from these cells. In contrast to previous studies of systemic immunity, P. carinii gpA was not the immunodominant antigen recognized by these B cells. Forty-nine (91%) of 54 P. carinii- specific hybridoma culture supernatants reacted with P. carinii antigens other than gpA. Many of the resulting MAbs recognized a previously uncharacterized antigens expressed on the surface of both cysts and trophozoites. Western blotting using one of the cloned MAbs revealed reactivity with a broad range of antigenic material, with the most intense reactivity in the 50- to 65-kDa region of the blot. The antigens identified by these MAbs merit further investigation regarding protective immunity to P. carinii because they were recognized by B cells in the context of recovery from P. carinii pneumonia.

Original languageEnglish
Pages (from-to)235-242
Number of pages8
JournalJournal of Infectious Diseases
Volume178
Issue number1
DOIs
StatePublished - 1998

ASJC Scopus subject areas

  • Immunology and Allergy
  • Infectious Diseases

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