Immunomodulatory effects of cyanobacterial toxin cylindrospermopsin on innate immune cells

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081707%3A_____%2F19%3A00509760" target="_blank" >RIV/68081707:_____/19:00509760 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/19:00107557

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0045653519305892?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0045653519305892?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chemosphere.2019.03.143" target="_blank" >10.1016/j.chemosphere.2019.03.143</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Immunomodulatory effects of cyanobacterial toxin cylindrospermopsin on innate immune cells

Popis výsledku v původním jazyce

Cylindrospermopsin (CYN), a cyanobacterial toxin, is an important water pollutant with broad biological activity. It has been known mainly from tropical areas, but the area of occurrence of its producers is spreading to temperate climates. It can be found in high concentrations in the environment as well as in purified drinking waters. The aim of the study is to bring a basic information on the ability of CYN to interfere with mammalian innate immunity cells and thus increase the understanding of the immunomodulatory potency of CYN. This study investigated whether immune cells can be a target of CYN either alone or in combination with a model immunomodulatory agent, lipopolysaccharide (LPS). We examined the effects on cellular viability and inflammation signaling of CYN on murine macrophage-like RAW 264.7 cells. Macrophages were treated either with pure toxin (1 mu M) or together with a known stimulator of immunologically active cells, bacterial or cyanobacterial LPS. CYN has had a significant effect on production on pro-inflammatory mediator tumor necrosis factor alpha (TNF-alpha) which correlates with its effect on reactive oxygen species (ROS) production. We found that CYN potentiated the effect of bacterial and cyanobacterial LPS that was documented by activation of inflammatory signaling pathways including mitogen-activated protein kinase p38 as well as consequent expression of inducible nitric oxide synthase (iNOS) and increased production of pro-inflammatory mediators such as nitric oxide (NO), TNF-alpha, interleukin-6 (IL-6). Our study brings one of the first information that contributes to the elucidation of immunomodulatory role of CYN in macrophages under normal and pro-inflammatory conditions. (C) 2019 Elsevier Ltd. All rights reserved.

Název v anglickém jazyce

Immunomodulatory effects of cyanobacterial toxin cylindrospermopsin on innate immune cells

Popis výsledku anglicky

Cylindrospermopsin (CYN), a cyanobacterial toxin, is an important water pollutant with broad biological activity. It has been known mainly from tropical areas, but the area of occurrence of its producers is spreading to temperate climates. It can be found in high concentrations in the environment as well as in purified drinking waters. The aim of the study is to bring a basic information on the ability of CYN to interfere with mammalian innate immunity cells and thus increase the understanding of the immunomodulatory potency of CYN. This study investigated whether immune cells can be a target of CYN either alone or in combination with a model immunomodulatory agent, lipopolysaccharide (LPS). We examined the effects on cellular viability and inflammation signaling of CYN on murine macrophage-like RAW 264.7 cells. Macrophages were treated either with pure toxin (1 mu M) or together with a known stimulator of immunologically active cells, bacterial or cyanobacterial LPS. CYN has had a significant effect on production on pro-inflammatory mediator tumor necrosis factor alpha (TNF-alpha) which correlates with its effect on reactive oxygen species (ROS) production. We found that CYN potentiated the effect of bacterial and cyanobacterial LPS that was documented by activation of inflammatory signaling pathways including mitogen-activated protein kinase p38 as well as consequent expression of inducible nitric oxide synthase (iNOS) and increased production of pro-inflammatory mediators such as nitric oxide (NO), TNF-alpha, interleukin-6 (IL-6). Our study brings one of the first information that contributes to the elucidation of immunomodulatory role of CYN in macrophages under normal and pro-inflammatory conditions. (C) 2019 Elsevier Ltd. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemosphere

ISSN

0045-6535

e-ISSN

—

Svazek periodika

226

Číslo periodika v rámci svazku

JUL 2019

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

439-446

Kód UT WoS článku

000468709500048

EID výsledku v databázi Scopus

—