2011
DOI: 10.1021/pr1006203
|View full text |Cite
|
Sign up to set email alerts
|

Mass Spectrometry Mapping of Epidermal Growth Factor Receptor Phosphorylation Related to Oncogenic Mutations and Tyrosine Kinase Inhibitor Sensitivity

Abstract: The epidermal growth factor receptor (EGFR) plays an important role in cancer by activating downstream signals important in growth and survival. Inhibitors of EGFR are frequently selected as treatment for cancer including lung cancer. We performed an unbiased and comprehensive search for EGFR phosphorylation events related to somatic activating mutations and EGFR inhibitor (erlotinib) sensitivity. EGFR immunoprecipitation combined with high resolution liquid chromatography-mass spectrometry and label free quan… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1

Citation Types

6
46
0

Year Published

2011
2011
2024
2024

Publication Types

Select...
9

Relationship

1
8

Authors

Journals

citations
Cited by 56 publications
(52 citation statements)
references
References 76 publications
6
46
0
Order By: Relevance
“…Left-hand and right-hand bars represent all and unique peptides, respectively. EGFR tyrosine residues, along with Tyr1092 and Tyr1197 (found in cluster 4 in the present study), were inhibited by erlotinib in a concentration-dependent manner (33). Other highly down-regulated phosphosites were Tyr771 of phospholipase C-gamma-1 (PLCG1) and Tyr427 of SHC-transforming protein 1 (SHC1).…”
Section: Fig 4 Identified and Quantitated Tyr-phosphorylated Peptidessupporting
confidence: 52%
See 1 more Smart Citation
“…Left-hand and right-hand bars represent all and unique peptides, respectively. EGFR tyrosine residues, along with Tyr1092 and Tyr1197 (found in cluster 4 in the present study), were inhibited by erlotinib in a concentration-dependent manner (33). Other highly down-regulated phosphosites were Tyr771 of phospholipase C-gamma-1 (PLCG1) and Tyr427 of SHC-transforming protein 1 (SHC1).…”
Section: Fig 4 Identified and Quantitated Tyr-phosphorylated Peptidessupporting
confidence: 52%
“…Tyr-phosphorylated Sites Modulated by Erlotinib-Erlotinib is a reversible inhibitor of the EGFR kinase that competes with ATP for its binding site. Therefore, the phosphorylation of EGFR, its substrates, and downstream molecules is expected to be down-regulated (32)(33)(34). For the present experiment, an erlotinib concentration of 5 M was selected because it corresponds approximately to the measured plasma level in humans (35).…”
Section: Resultsmentioning
confidence: 99%
“…Multiplexed protein quantitation by multiple reaction monitoring (MRM) or parallel reaction monitoring (PRM) are powerful tools for systems characterization (25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39). These multiplexed assays can interrogate coordinated expression of proteins in functional protein networks, such ␤-catenin signaling (35), nuclear factor-B signaling (36), protein expression changes because of EGFR signaling (37,38), and phosphotyrosine quantitation in EGFR signaling (39).…”
mentioning
confidence: 99%
“…The advantage of analyzing purified protein complexes is the ability to identify specific interacting proteins and posttranslational modifications that may otherwise go undetected in large-scale global analyses. This can be achieved by performing an immunoprecipitation (IP) with a bait protein and analyzing the prey proteins using microcapillary-tandem mass spectrometry (LC-MS/MS) (6)(7)(8)(9)(10)(11)(12)(13). These experiments have included various types of affinity tags and have been overlaid with RNAi genetic screens (14,15).…”
mentioning
confidence: 99%