ArticleOncogene2010
Identification of Siah-interacting protein as a potential regulator of apoptosis and curcumin resistance.
Article in Oncogene, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
3 citing papers in PubMed, 5 citations in OpenAlex.
- Review
- The potential role of CacyBP/SIP in tumorigenesis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016Review
- Expression and regulation of CacyBP/SIP in chronic lymphocytic leukemia cell balances of cell proliferation with apoptosis.Journal of cancer research and clinical oncology · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The mechanism underlying curcumin (diferuloylmethane) resistance is still largely unknown. Here we employed proteomic approach to identify the Siah-interacting protein (SIP) as a candidate for detailed study, because the spot intensity of SIP on a two-dimensional gel displayed 70-90% reduction in curcumin-sensitive cells, but remained unchanged in curcumin-resistant sublines, after curcumin treatment. Both gain- and loss-of-function studies revealed that SIP promoted curcumin-induced apoptosis. Moreover, SIP underwent phosphorylation and nuclear translocation in curcumin-sensitive but not resistant cells, upon curcumin exposure. The nuclear translocation of SIP was remarkably impaired when a putative nuclear localization sequence (NLS, amino acid (aa) 143-159) was deleted or the serine 141 was mutated into alanine, whereas truncation of the N-terminal region (aa 1-43) obviously increased the nuclear import of SIP. In accordance with their nuclear localization, N-terminal truncation significantly enhanced the proapoptotic effect of SIP, whereas NLS deletion or Ser141Ala mutation attenuated the apoptosis-promoting activity of both wild-type- and N-terminal truncated-SIP. These data suggest that SIP plays a role in apoptosis and curcumin resistance, and the function of SIP may be regulated by different motifs, such as the NLS, N-terminal region and serine 141. Our findings provide new insights into the biological significance of SIP and the mechanisms of drug resistance.
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Registered trials
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