ELIZA

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324223 occurrences (No.64 in the rank) during 5 years in the PubMed. [no cache] 500 found

200) Liquid chromatography mass spectrometry identified the corepressor SMRT as a novel Myc-interacting protein.

--- ABSTRACT ---

PMID:24469058 DOI:10.1038/onc.2013.586

2015 Oncogene

* Growth factor receptor/steroid receptor cross talk in trastuzumab-treated breast cancer.

- Treatment with tyrosine kinase inhibitors (TKIs) including trastuzumab has revolutionized the management of HER2-positive breast cancer. Recent evaluation of clinical trial data suggests that a subset of HER2/ER double-positive cancers may not receive significant benefit from the TKI therapy. Here we investigate the cross talk between HER2 and ER in breast cancer and monitor the effect of trastuzumab on the tyrosine kinase effector transcription factor Myc. In HER2-positive breast cancer patients treated with neoadjuvant trastuzumab, steroid receptor-negative status (ER and PR negative) of pre-treatment biopsies predicted pathological complete response (pCR) (n=31 patients, P=0.0486), whereas elevated Myc protein inversely associated with pCR (P=0.0446). Liquid chromatography mass spectrometry identified the corepressor SMRT as a novel Myc-interacting protein. Trastuzumab treatment enhanced Myc-SMRT interactions in HER2-overexpressing breast cancer cells (LCC1) and inhibited expression of the Myc target gene survivin. In HER2-low, ER-positive steroid-dominant cells (MCF7), trastuzumab therapy repressed Myc-SMRT interactions and upregulated survivin expression. Trastuzumab treatment induced ER-CBP interactions, enhanced ER transcriptional activity and upregulated expression of the ER target gene pS2. The absence of pS2 expression in pre-treatment biopsies predicted pCR to neoadjuvant trastuzumab in breast cancer patients (n=25, P=0.0089) and pS2 expression associated with residual cancer burden (P=0.0196). Furthermore, metastatic tissues from patients who had failed trastuzumab therapy were pS2 positive. In HER2-overexpressing cells, trastuzumab treatment can repress Myc transcriptional activity and clinical response is favorable. However, with co-expression of the steroid pathway, this inhibition is lost and response to treatment is often poor.

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--- WordNet output for identified --- =>確認飛行物体;略:IFO Overview of verb identify The verb identify has 6 senses (first 6 from tagged texts) 1. (32) identify, place -- (recognize as being; establish the identity of someone or something; "She identified the man on the 'wanted' poster") 2. (7) name, identify -- (give the name or identifying characteristics of; refer to by name or some other identifying characteristic property; "Many senators were named in connection with the scandal"; "The almanac identifies the auspicious months") 3. (6) identify -- (consider (oneself) as similar to somebody else; "He identified with the refugees") 4. (4) identify -- (conceive of as united or associated; "Sex activity is closely identified with the hypothalamus") 5. (2) identify, discover, key, key out, distinguish, describe, name -- (identify as in botany or biology, for example) 6. (2) identify -- (consider to be equal or the same; "He identified his brother as one of the fugitives") Overview of adj identified The adj identified has 1 sense (first 1 from tagged texts) 1. (1) identified -- (having the identity known or established; "the identified bodies were released for burial") --- WordNet end ---