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Inhibition of gap junctional intercellular communication by polychlorinated biphenyls: inhibitory potencies and screening for potential mode(s) of action
Bláha, L. ; Vondráček, Jan ; Upham, B. L. ; Machala, M.
The aims of the present study were to determine potencies of a series of environmentally relevant PCB congeners to inhibit GJIC invitro, and to screen for intrcellular signaling pathways potentially involved in GJIC downregulation by PCBs. It was found that a number of nonplanar PCB congeners are efficient inhibitors of GJIC in vitro, and that a model compound, PCB153, does not act via activation of PKC or ERK1/2, which is contrast with the effects of protoypical inhibitors of GJIC, such as TPA or EGF.
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Vliv okolního prostředí na semena
Bláha, L. ; Kohout, Ladislav ; Hnilička, F. ; Gottwaldová, P. ; Jankovská, P.
Stress abiotic factors affect chemical composition of seeds, yielding traits, seed traits and traits of sprouting plants-especially root traits: length, surface, weight, nutrient uptake, number of root tips, number of root hairs, number of lateral roots and density
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