Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:2.7.10.1 (ERK)
 95,504 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An antibody blocking GRFAL-RET binding blunted GDF15-induced cachexia, preventing weight loss.
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PMID:A Therapeutic GFRAL Antibody Blocks Cancer-Linked Cachexia in Mice. 3270 32

Peptide G protein-coupled receptors (GPCRs) for pituitary adenylate cyclase activating polypeptide (PACAP) regulate the growth of non-small cell lung cancer (NSCLC) cells. PACAP binds with high affinity to PAC1, which causes transactivation of receptor tyrosine kinases (RTK) for the EGFR and HER2 but its effect on HER3 is unknown. Using 3 NSCLC cell lines (NCI-H358, NCI-H441, and Calu-3), proteins for EGFR, HER2, HER3, and PAC1 were detected. The increase in EGFR tyrosine phosphorylation caused by PACAP was blocked by the EGFR tyrosine kinase inhibitor (TKI) gefitinib, or PACAP(6-38), a PAC1 antagonist. The increase in HER2 tyrosine phosphorylation caused by PACAP was inhibited by trastuzumab, a monoclonal antibody (mAb) for HER2, or PACAP(6-38). The increase in HER3 tyrosine phosphorylation caused by PACAP was inhibited by HER3 mAb3481 or PACAP(6-38). Immunoprecipitation experiments indicated the PACAP addition to Calu-3 cells resulted in the formation of EGFR/HER3 and HER2/HER3 heterodimers. Addition of the HER3 agonist neuregulin (NRG)-1 increased HER3 tyrosine phosphorylation in non-small-cell lung cancer (NSCLC) cells. PACAP or NRG-1 increased the proliferation of NSCLC cells, whereas PACAP(6-38), gefitinib, trastuzumab, or mAb3481 inhibited proliferation. The results indicate that PAC1 regulates the proliferation of NSCLC cells as a result of transactivation of the EGFR, HER2, and HER3.
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PMID:The G Protein-Coupled Receptor PAC1 Regulates Transactivation of the Receptor Tyrosine Kinase HER3. 3296 98


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