J 2016

Inhaled Cadmium Oxide Nanoparticles: Their in Vivo Fate and Effect on Target Organs

DUMKOVÁ, Jana, Lucie VRLIKOVA, Zbynek VECERA, Barbora PUTNOVA, Bohumil DOCEKAL et. al.

Basic information

Original name

Inhaled Cadmium Oxide Nanoparticles: Their in Vivo Fate and Effect on Target Organs

Authors

DUMKOVÁ, Jana (203 Czech Republic, guarantor, belonging to the institution), Lucie VRLIKOVA (203 Czech Republic), Zbynek VECERA (203 Czech Republic), Barbora PUTNOVA (203 Czech Republic), Bohumil DOCEKAL (203 Czech Republic), Pavel MIKUSKA (203 Czech Republic), Petr FICTUM (203 Czech Republic), Aleš HAMPL (203 Czech Republic, belonging to the institution) and marcela BUCHTOVÁ (203 Czech Republic, belonging to the institution)

Edition

International Journal of Molecular Sciences, Basel, Multidisciplinary Digital Publishing Institute (MDPI), 2016, 1422-0067

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 3.226

RIV identification code

RIV/00216224:14310/16:00095966

Organization unit

Faculty of Science

UT WoS

000378799300088

Keywords in English

nanoparticles; cadmium oxide; electron microscopy; toxicity; inhalation; lung; liver; kidney; spleen

Tags

Tags

International impact, Reviewed
Změněno: 13/4/2018 14:17, Ing. Nicole Zrilić

Abstract

V originále

The increasing amount of heavy metals used in manufacturing equivalently increases hazards of environmental pollution by industrial products such as cadmium oxide (CdO) nanoparticles. Here, we aimed to unravel the CdO nanoparticle destiny upon their entry into lungs by inhalations, with the main focus on the ultrastructural changes that the nanoparticles may cause to tissues of the primary and secondary target organs. We indeed found the CdO nanoparticles to be transported from the lungs into secondary target organs by blood. In lungs, inhaled CdO nanoparticles caused significant alterations in parenchyma tissue including hyperemia, enlarged pulmonary septa, congested capillaries, alveolar emphysema and small areas of atelectasis. Nanoparticles were observed in the cytoplasm of cells lining bronchioles, in the alveolar spaces as well as inside the membranous pneumocytes and in phagosomes of lung macrophages. Nanoparticles even penetrated through the membrane into some organelles including mitochondria and they also accumulated in the cytoplasmic vesicles. In livers, inhalation caused periportal inflammation and local hepatic necrosis. Only minor changes such as diffusely thickened filtration membrane with intramembranous electron dense deposits were observed in kidney. Taken together, inhaled CdO nanoparticles not only accumulated in lungs but they were also transported to other organs causing serious damage at tissue as well as cellular level.