Abstract:
:SDS-gradient mini-gel electrophoresis and immunoblotting of urine of rats given ochratoxin A (OTA), showed OTA binding to an alpha2u-globulin. Perceived potential internalised delivery of OTA to proximal tubule epithelia by the carrier, specific only to adult male rats and augmenting other uptake mechanisms, suggests that some experimental nephrotoxicological data may not be appropriate for human risk assessment. Reexamination of female rat renal tumour histopathology of the NTP high dose OTA study showed all carcinomas were solitary, unilateral, microscopic and clinically insignificant at the 2-year end-stage. The novel concept, when consolidated further from our archived material, may moderate current perceptions of the human risk of traces of dietary OTA.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Mantle PG,Nagy JMdoi
10.3390/ijms9050719subject
Has Abstractpub_date
2008-05-01 00:00:00pages
719-35issue
5issn
1422-0067journal_volume
9pub_type
杂志文章abstract::The binding of epidermal growth factor (EGF) to EGF receptor (EGFR) stimulates cell mitogenesis and survival through various signalling cascades. EGF also stimulates rapid EGFR endocytosis and its eventual degradation in lysosomes. The immediate events induced by ligand binding include receptor dimerization, activatio...
journal_title:International journal of molecular sciences
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