Stress response gene activation protects sea urchin embryos exposed to X-rays. (Articolo in rivista)

Type
Label
  • Stress response gene activation protects sea urchin embryos exposed to X-rays. (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s12192-011-0277-3 (literal)
Alternative label
  • Bonaventura R; Zito F; Costa C; Giarrusso S; Celi F; Matranga V. (2011)
    Stress response gene activation protects sea urchin embryos exposed to X-rays.
    in Cell stress & chaperones
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bonaventura R; Zito F; Costa C; Giarrusso S; Celi F; Matranga V. (literal)
Pagina inizio
  • 681 (literal)
Pagina fine
  • 687 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 16 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • * IN PRESS (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • - Consiglio Nazionale delle Ricerche, Istituto di Biomedicina e Immunologia Molecolare \"Alberto Monroy\", Palermo, Italy - INAF, Istituto di Astrofisica Spaziale e Fisica Cosmica, Palermo, Italy (literal)
Titolo
  • Stress response gene activation protects sea urchin embryos exposed to X-rays. (literal)
Abstract
  • We used Paracentrotus lividus sea urchin embryos, a well-established model in developmental biology and ecotoxicology, for investigation on stress/anti-apoptotic protein expression elicited in response to harmful ionizing radiation, such as X-rays. We evaluated the acute effects of a high-dose exposure (5 Gy) on P. lividus analyzing by Western blotting the accumulation levels of HSP60, HSP70, BAG3 and a putative p63 at 24 and 48 h after irradiation. We found an increase in the HSP70, BAG3, and p63 protein levels only 48 h after irradiation, whereas no HSP60 increase was detected either at 24 or 48 h. Levels of the mRNA coding for HSP70 and p63 were also investigated by relative RT-PCR and were found to increase 24 h after irradiation, returning to their initial levels at 48 h. Results demonstrate the presence of an adaptive regulatory mechanism operating at the transcriptional level at 24 h, followed by a translational activation at 48 h postirradiation. In conclusion, our findings confirm the sea urchin embryo as a sensible bioindicator of cell damage and we propose this model for studies on the protective pathways activated in response to X-rays. The novel result of the involvement of BAG3 and p63 in the response to X-rays, never tested so far in any other embryonic system, opens the way for their use as biomarkers of X-ray hazards. (literal)
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