A Clearance Period after Soluble Lead Nanoparticle Inhalation Did Not Ameliorate the Negative Effects on Target Tissues Due to Decreased Immune Response

0536914 - ÚŽFG 2021 RIV CH eng J - Článek v odborném periodiku
Dumková, J. - Smutná, Tereza - Vrlíková, Lucie - Dočekal, Bohumil - Kristeková, Daniela - Večeřa, Zbyněk - Husáková, Z. - Jakešová, Veronika - Jedličková, Adriena - Mikuška, Pavel - Alexa, Lukáš - Coufalík, Pavel - Tvrdoňová, M. - Křůmal, Kamil - Vaculovič, T. - Kanický, V. - Hampl, A. - Buchtová, Marcela
A Clearance Period after Soluble Lead Nanoparticle Inhalation Did Not Ameliorate the Negative Effects on Target Tissues Due to Decreased Immune Response.
International Journal of Molecular Sciences. Roč. 21, č. 22 (2020), č. článku 8738. E-ISSN 1422-0067
Grant CEP: GA ČR(CZ) GA20-02203S
Institucionální podpora: RVO:67985904 ; RVO:68081715
Klíčová slova: clearance * lead nanoparticles * inhalation * LA-ICP-MS imaging * toxicity
Obor OECD: Cell biology; Analytical chemistry (UIACH-O)
Impakt faktor: 5.924, rok: 2020
Způsob publikování: Open access
https://asep.lib.cas.cz/arl-cav/cs/csg/?repo=crepo1&key=820955896

The inhalation of metal (including lead) nanoparticles poses a real health issue to people and animals living in polluted and/or industrial areas. In this study, we exposed mice to lead(II) nitrate nanoparticles [Pb(NO3)(2) NPs], which represent a highly soluble form of lead, by inhalation. We aimed to uncover the effects of their exposure on individual target organs and to reveal potential variability in the lead clearance. We examined (i) lead biodistribution in target organs using laser ablation and inductively coupled plasma mass spectrometry (LA-ICP-MS) and atomic absorption spectrometry (AAS), (ii) lead effect on histopathological changes and immune cells response in secondary target organs and (iii) the clearance ability of target organs. In the lungs and liver, Pb(NO3)(2) NP inhalation induced serious structural changes and their damage was present even after a 5-week clearance period despite the lead having been almost completely eliminated from the tissues. The numbers of macrophages significantly decreased after 11-week Pb(NO3)(2) NP inhalation, conversely, abundance of alpha-smooth muscle actin (alpha-SMA)-positive cells, which are responsible for augmented collagen production, increased in both tissues. Moreover, the expression of nuclear factor kappa B (NF-kappa B) and selected cytokines, such as tumor necrosis factor alpha (TNF alpha), transforming growth factor beta 1 (TGF beta 1), interleukin 6(IL-6), IL-1 alpha and IL-1 beta , displayed a tissue-specific response to lead exposure. In summary, diminished inflammatory response in tissues after Pb(NO3)(2) NPs inhalation was associated with prolonged negative effect of lead on tissues, as demonstrated by sustained pathological changes in target organs, even after long clearance period.
Trvalý link: http://hdl.handle.net/11104/0314665