2019
Polycyclic Aromatic Hydrocarbons and Endocrine Disruption: Role of Testicular Gap Junctional Intercellular Communication and Connexins
KUBINCOVÁ, Petra, Eliška SYCHROVÁ, Jan RAŠKA, Amrita BASU, Affiefa YAWER et. al.Základní údaje
Originální název
Polycyclic Aromatic Hydrocarbons and Endocrine Disruption: Role of Testicular Gap Junctional Intercellular Communication and Connexins
Autoři
KUBINCOVÁ, Petra (203 Česká republika, domácí), Eliška SYCHROVÁ (203 Česká republika, domácí), Jan RAŠKA (203 Česká republika, domácí), Amrita BASU (356 Indie, domácí), Affiefa YAWER (586 Pákistán, domácí), Aneta DYDOWICZOVÁ (203 Česká republika, domácí), Pavel BABICA (203 Česká republika, domácí) a Iva SOVADINOVÁ (203 Česká republika, garant, domácí)
Vydání
Toxicological sciences, OXFORD, Academic Press, 2019, 1096-6080
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30108 Toxicology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.703
Kód RIV
RIV/00216224:14310/19:00108198
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000475894000009
Klíčová slova anglicky
connexins; Cx43 truncated isoforms; endocrine disruptors; gap junctional intercellular communication; polycyclic aromatic hydrocarbons; testicular cells
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 3. 4. 2020 12:45, Mgr. Marie Šípková, DiS.
Anotace
V originále
Ambient air pollution and smoking are well-documented risk factors for male infertility. Prevalent air pollutants and cigarette smoke components, polycyclic aromatic hydrocarbons (PAHs), are environmental and occupational toxicants that act as chemicals disrupting endocrine regulation and reproductive potential in males. Testicular gap junctional intercellular communication (GJIC) is critical for normal development and function of testicular tissue, thus we assessed GJIC as a process potentially targeted by PAHs in testes. Lower MW PAHs with a bay or bay-like region rapidly dysregulated GJIC in Leydig TM3 cells by relocalization of major testicular gap junctional protein connexin 43 (Cx43) from plasma membrane to cytoplasm. This was associated with colocalization between Cx43 and ubiquitin in intracellular compartments, but without any effect on Cx43 degradation rate or steady-state Cx43 mRNA levels. A longer exposure to active PAHs decreased steady-state levels of full-length Cx43 protein and its 2 N-truncated isoforms. Inhibition of GJIC by PAHs, similarly to a prototypic GJIC-inhibitor TPA, was mediated via the MAP kinase-Erk1/2 and PKC pathways. Polycyclic aromatic hydrocarbon-induced GJIC dysregulation in testes was cell-type-specific because neither PAH dysregulated GJIC in Sertoli TM4 cells, despite PAHs were rapidly taken up by both Leydig TM3 as well as Sertoli TM4 cells. Because TPA effectively dysregulated GJIC in both testicular cell types, a unique regulator of GJIC targeted by PAHs might exist in Leydig TM3 cells. Our results indicate that PAHs could be a potential etiological agent contributing to reproductive dysfunctions in males through an impairment of testicular GJIC and junctional and/or nonjunctional functions of Cx43.
Návaznosti
EF16_013/0001761, projekt VaV |
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GJ16-10775Y, projekt VaV |
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LM2015051, projekt VaV |
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