Title : Dihydrotanshinone-I interferes with the RNA-binding activity of HuR affecting its post-transcriptional function.

Pub. Date : 2015 Nov 10

PMID : 26553968






10 Functional Relationships(s)
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Compound Name
Protein Name
Organism
1 Dihydrotanshinone-I interferes with the RNA-binding activity of HuR affecting its post-transcriptional function. dhts ELAV like RNA binding protein 1 Homo sapiens
2 We identified the low molecular weight compound 15,16-dihydrotanshinone-I (DHTS), well known in traditional Chinese medicine practice, through a validated high throughput screening on a set of anti-inflammatory agents for its ability to prevent HuR:RNA complex formation. dhts ELAV like RNA binding protein 1 Homo sapiens
3 We identified the low molecular weight compound 15,16-dihydrotanshinone-I (DHTS), well known in traditional Chinese medicine practice, through a validated high throughput screening on a set of anti-inflammatory agents for its ability to prevent HuR:RNA complex formation. dhts ELAV like RNA binding protein 1 Homo sapiens
4 We found that DHTS interferes with the association step between HuR and the RNA with an equilibrium dissociation constant in the nanomolar range in vitro (Ki = 3.74 +- 1.63 nM). dhts ELAV like RNA binding protein 1 Homo sapiens
5 In breast cancer cell lines, short term exposure to DHTS influences mRNA stability and translational efficiency of TNF in a HuR-dependent manner and also other functional readouts of its post-transcriptional control, such as the stability of selected pre-mRNAs. dhts ELAV like RNA binding protein 1 Homo sapiens
6 Importantly, we show that migration and sensitivity of breast cancer cells to DHTS are modulated by HuR expression, indicating that HuR is among the preferential intracellular targets of DHTS. dhts ELAV like RNA binding protein 1 Homo sapiens
7 Importantly, we show that migration and sensitivity of breast cancer cells to DHTS are modulated by HuR expression, indicating that HuR is among the preferential intracellular targets of DHTS. dhts ELAV like RNA binding protein 1 Homo sapiens
8 Importantly, we show that migration and sensitivity of breast cancer cells to DHTS are modulated by HuR expression, indicating that HuR is among the preferential intracellular targets of DHTS. dhts ELAV like RNA binding protein 1 Homo sapiens
9 Importantly, we show that migration and sensitivity of breast cancer cells to DHTS are modulated by HuR expression, indicating that HuR is among the preferential intracellular targets of DHTS. dhts ELAV like RNA binding protein 1 Homo sapiens
10 Here, we disclose a previously unrecognized molecular mechanism exerted by DHTS, opening new perspectives to therapeutically target the HuR mediated, post-transcriptional control in inflammation and cancer cells. dhts ELAV like RNA binding protein 1 Homo sapiens