Cited by 71T-cell and B-cell ImmunologyImmunotoxicology and immune responsesTransplantation: Methods and Outcomes

Lymphocytes in the lung: an often neglected cell: Numbers, characterization and compartmentalization

Pabst, R., Tschernig, T.·1995·Anatomy and Embryology

Abstract

The lung is continuously in contact with inhaled particles, some of which are of microbial origin. This requires adequate defence mechanisms in the form of immune reactions. These can be subdivided into the afferent and efferent limb. Specific immune reactions depend on the interactions between lymphoid and accessory cells. Therefore, the local histotopographic localization of lymphocyte subsets has to be known to understand pulmonary immune reactions. As lymphocytes have often not been mentioned when cells in the respiratory tract have been characterized, their compartmentalization, number and subset composition in the lung are outlined here. Lymphocytes are found in the epithelium and lamina propria of the bronchi with different subset compositions. In some species, like the rabbit, bronchus-associated lymphoid tissue (BALT) is found as follicle-like aggregations with lymphocytes infiltrating the epithelium, which shows specialized epithelial cells. BALT, however, is not a constitutive structure in all species, e.g. in humans. Nevertheless, certain (probably) microbial stimuli can induce BALT in adult humans. In contrast to many other organs, the lung vascular bed contains large numbers of lymphocytes. Little is known about the adhesion molecules that make this margination possible. In the lung interstitium about 10 x 10(9) lymphocytes have been calculated for healthy adults. The most easily accessible pool of lymphocytes in the human lung are those recovered by bronchoalveolar lavage. The vast majority of such lymphocytes express markers typical for "memory lymphocytes". The intrapulmonary migratory routes of lymphocytes and the integration of the lung in the common mucosal immune system are described.(ABSTRACT TRUNCATED AT 250 WORDS)

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Crossref · 10.1007/bf00710098

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  • An age-dependent increase in cytotoxic CD8+ and memory CD4+ T cells in the airways of COPD patients may further disease progression.

    “An age-dependent increase in cytotoxic CD8+ and memory CD4+ T cells in the airways of COPD patients may further disease progression (86, 130, 132).”

    From Aging and Lung Disease (2020) · cites this paper as [130]

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Authors
Pabst, R., & Tschernig, T.
Affiliations
Medizinische Hochschule Hannover (DE)
Venue
Anatomy and Embryology
Published
1995-10
Volume
192
Issue
4
Pages
293-299
ISSN
  • 0340-2061 (ISSN-L)
  • 1432-0568
OpenAlex
W2334187557
Cited by
71
References
63
Citations by year
2025: 2 · 2024: 1 · 2022: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 2 · 2014: 2 · 2013: 4 · 2012: 3
FWCI
0.71
Type
journal article
Language
en
Open access
closed
Locations
  • Anatomy and Embryology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotoxicology and immune responses
  • Health Sciences › Medicine › Surgery › Transplantation: Methods and Outcomes
Keywords
pulmonary lymphocytes, bronchus-associated lymphoid tissue, lung immunity, bronchial epithelium, lamina propria, lymphocyte subsets, bronchoalveolar lavage, memory lymphocytes, lymphocyte migration, mucosal immune system, adhesion molecules, lung interstitium
MeSH terms
Aging, Animals, Bronchi, Bronchoalveolar Lavage Fluid, Germ-Free Life, Humans, Lung, Lymphocytes, Lymphoid Tissue, Species Specificity, Cell Adhesion Molecules, Lymphocyte Subsets

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