The Effects of Asbestos Fibers on Human T Cells

Asbestos exposure causes malignant tumors such as lung cancer and malignant mesothelioma. The effects of asbestos fibers on immunocompetent cells, however, have not been well studied. Asbestos physically comprises a fibrous substance, which differs from silica particles which are a particulate substance, although chemically it is a mineral silicate. Since silicosis patients previously exposed to silica particles often suffer from lung and autoimmune diseases, it is clear that silica exposure impairs immune tolerance. Similarly, asbestos may alter the immune system in asbestos-exposed individuals. Given that malignant tumors can result following exposure to asbestos, the attenuation of anti-tumor immunity in cases of asbestos exposure is an important area of investigation. We observed the effect of asbestos fibers on T lymphocytes, such as CD8+ cytotoxic T lymphocytes (CTLs), CD4+ helper T (Th), and regulatory T (Treg) cells, and showed that anti-tumor immunity was attenuated, as demonstrated in a system that stimulates fresh cells isolated from peripheral blood in vitro and a system that is continuously exposed to a cell line. In this manuscript, we introduce the experiments and results of studies on CTLs, as well as Th and Treg cells, and discuss how future changes in immunocompetent cells induced by asbestos fibers can be clinically linked.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:21

Enthalten in:

International journal of molecular sciences - 21(2020), 19 vom: 23. Sept.

Sprache:

Englisch

Beteiligte Personen:

Kumagai-Takei, Naoko [VerfasserIn]
Lee, Suni [VerfasserIn]
Srinivas, Bandaru [VerfasserIn]
Shimizu, Yurika [VerfasserIn]
Sada, Nagisa [VerfasserIn]
Yoshitome, Kei [VerfasserIn]
Ito, Tatsuo [VerfasserIn]
Nishimura, Yasumitsu [VerfasserIn]
Otsuki, Takemi [VerfasserIn]

Links:

Volltext

Themen:

1332-21-4
Asbestos
CD4+ T cell
Cytotoxic T lymphocyte
Journal Article
Malignant mesothelioma
Pleural plaque
Regulatory T cell
Review
T cell

Anmerkungen:

Date Completed 23.02.2021

Date Revised 23.02.2021

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijms21196987

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM315482338