Immunity to intestinal parasites: Role of mast cells and goblet cells

D. A. Levy, C. Frondoza

Research output: Contribution to journalArticle

Abstract

Nippostrongylus brasiliensis infection of rats and mice is a model for studying immunity at mucosal surfaces. Adult worms are spontaneously expelled from the intestine at the end of the second week of infection. Expulsion from the jejunum requires the presence of immune T lymphocytes and IgG antibodies. Mucosal mast cells (MMCs) are a prominent part of the jejunal inflammatory response. They are derived from a hepatopoietic stem cell, possibly the same precursors as basophils. Their differentiation is not absolutely T dependent but their accumulation at the site of infection is. The possible involvement of IgG antibodies and intestinal MMCs through a 'leak lesion' is still uncertain. Increased mucus secretion from epithelial goblet cells is also a prominent feature of the inflammatory reaction at the site of infection. Goblet cell numbers increase two to four times at the onset of worm expulsion; this increase is regulated by T lymphocytes and possibly immune serum. The mechanism of mucus secretion in these infections is not clear; it may be a response to mast cell mediators. Together with antiworm antibodies, intestinal mucus may trap worms and prevent them from surviving in the intervillous spaces of the jejunum. Thus, expulsion of this intestinal parasite may occur through a nonspecific process that is induced by specific immune mechanisms.

Original languageEnglish (US)
Pages (from-to)1750-1755
Number of pages6
JournalFederation proceedings
Volume42
Issue number6
StatePublished - 1983

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Goblet Cells
Mast Cells
Immunity
Parasites
Mucus
Infection
Jejunum
Antibodies
Immunoglobulin G
Nippostrongylus
T-Lymphocytes
Mucosal Immunity
Basophils
Intestines
Immune Sera
Stem Cells
Cell Count
Epithelial Cells

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Immunity to intestinal parasites : Role of mast cells and goblet cells. / Levy, D. A.; Frondoza, C.

In: Federation proceedings, Vol. 42, No. 6, 1983, p. 1750-1755.

Research output: Contribution to journalArticle

Levy, DA & Frondoza, C 1983, 'Immunity to intestinal parasites: Role of mast cells and goblet cells', Federation proceedings, vol. 42, no. 6, pp. 1750-1755.
Levy, D. A. ; Frondoza, C. / Immunity to intestinal parasites : Role of mast cells and goblet cells. In: Federation proceedings. 1983 ; Vol. 42, No. 6. pp. 1750-1755.
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