Abstract:
:Data regarding the expression of epidermal growth factor receptor (EGFR) in melanoma and its role in the tumor biology are conflicting. In BRAF V600-mutant melanomas, the expression of EGFR has been associated with acquired resistance to BRAF inhibitors. In this study, we assessed EGFR expression and downstream signaling activity in a panel of melanoma cell lines and we investigated the effects of the BRAF inhibitor vemurafenib on expression of EGFR and its downstream effectors in a subgroup of BRAF-mutant melanoma cells. Three out of 10 melanoma cell lines expressed EGFR. Downstream signaling via ERK and AKT was responsive to either stimulation by EGF or inhibition by erlotinib. Constitutive activation of ERK occurred in all the cell lines investigated whereas constitutive activation of AKT only in three cell lines. Constitutive activation of ERK and AKT was independent from EGFR expression. Vemurafenib did not affect EGFR expression in general, but it increased EGFR phosphorylation in the cell line SkMel5. Induced EGFR phosphorylation was sensitive to treatment with erlotinib. Vemurafenib efficiently blocked ERK activation in all the BRAF-mutant cell lines tested, whereas its effects on AKT activation were dissimilar in the different cell lines. Our data suggest that EGFR is functional but usually inactive in EGFR high-expressing cell lines. Basal EGFR expression unlikely represents a biomarker for predicting the sensitivity to vemurafenib in melanoma, but EGFR activation might represent a mechanism of vemurafenib resistance in a subset of melanoma cells.
journal_name
Target Oncoljournal_title
Targeted oncologyauthors
Gross A,Niemetz-Rahn A,Nonnenmacher A,Tucholski J,Keilholz U,Fusi Adoi
10.1007/s11523-014-0318-9subject
Has Abstractpub_date
2015-03-01 00:00:00pages
77-84issue
1eissn
1776-2596issn
1776-260Xjournal_volume
10pub_type
杂志文章abstract:BACKGROUND:Axitinib, an inhibitor of vascular endothelial growth factor (VEGF) receptors, is approved as second-line treatment for advanced renal cell carcinoma (RCC). Agents targeting the VEGF pathway may induce renal toxicities, which may be influenced by pre-existing renal dysfunction. OBJECTIVE:The objective was t...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-015-0389-2
更新日期:2016-04-01 00:00:00
abstract:BACKGROUND:In 2017, nivolumab monotherapy was shown to be effective as third- or later-line therapy in patients with advanced gastric or gastroesophageal junction cancer. OBJECTIVE:In this study, we investigated the relationship between the neutrophil-to-lymphocyte ratio (NLR) and the outcomes of nivolumab monotherapy...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-020-00716-y
更新日期:2020-06-01 00:00:00
abstract:BACKGROUND:Hypovitaminosis D is associated with an adverse prognosis in colon cancer patients, possibly due to the effects of the vitamin on the immune system. Antibody-dependent cell-mediated cytotoxicity (ADCC) significantly contributes to the anti-tumor effects of monoclonal antibodies, including cetuximab, an epide...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-018-0586-x
更新日期:2018-10-01 00:00:00
abstract::Atezolizumab (Tecentriq®), a humanized, anti-programmed cell death ligand-1 (PD-L1) monoclonal antibody, in combination with bevacizumab, carboplatin and paclitaxel (ABCP) or with carboplatin and nab-paclitaxel (ACnP) has been approved as first-line treatment for metastatic nonsquamous NSCLC, based on results from the...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-019-00686-w
更新日期:2019-12-01 00:00:00
abstract::The discovery of chemoresistant cancer stem cells (CSCs) in carcinomas has created the need for therapies that specifically target these subpopulations of cells. Here, we characterized a bispecific targeted toxin that is composed of two antibody fragments and a catalytic protein toxin allowing it to bind two CSC marke...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-013-0290-9
更新日期:2014-09-01 00:00:00
abstract::The advent of imatinib mesilate, an oral target therapy, has dramatically changed the natural history of gastrointestinal stromal tumours (GISTs). This rare neoplasm has become the paradigm of targeted therapies in solid tumours, also introducing a home-based cure concept in oncology. However, it should be retained th...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-012-0221-1
更新日期:2012-12-01 00:00:00
abstract::Venetoclax (Venclyxto®; Venclexta®) is a first-in-class, oral, selective B cell lymphoma-2 (BCL-2) inhibitor. The drug is approved in numerous countries, including those of the EU and in the USA, for the treatment of adults with relapsed or refractory (RR) chronic lymphocytic leukemia (CLL); the specific indication(s)...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-019-00673-1
更新日期:2019-10-01 00:00:00
abstract::Differentiated thyroid carcinoma is the most frequent neoplasm of the endocrine system. Although thyroid cancer usually has an excellent prognosis, no therapeutic options are available for patients that develop metastases and are or became resistant to radioiodine therapy. The deeper knowledge of molecular aberrations...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-009-0124-y
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND:Serum protein fraction (SPF) is a common parameter reflecting the nutritional and inflammatory status of the human body. However, its role in patients with cancer, particularly those treated with targeted agents, is unknown. OBJECTIVE:We conducted this study to explore the prognostic value of SPF in patient...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-019-00625-9
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:The identification of prognostic and/or predictive biomarkers for response to immune checkpoint inhibitors (ICI) could help guide treatment decisions. OBJECTIVE:We assessed changes in programmed cell death-1 (PD1)/PD1 ligand (PDL1) expression in key immunomodulatory cell subsets (myeloid-derived suppressor ...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-018-0595-9
更新日期:2018-10-01 00:00:00
abstract::The ubiquitin (Ub)+proteasome proteolytic pathway is responsible for the selective degradation of the majority of nuclear and cytosolic proteins. The proteasome is a high molecular weight multicatalytic protease that serves as the catalytic core of the complex Ub-dependent protein degradation pathway and is an excitin...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-010-0165-2
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND:Immunotherapy based on programmed cell death protein 1 (PD-1)/programmed death-ligand 1 (PD-L1) inhibitors has revolutionized the treatment of non-small cell lung cancer (NSCLC). Patients with high PD-L1 expression or DNA mismatch repair deficiency (dMMR)/microsatellite instability-high (MSI-H) cancer are re...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-020-00703-3
更新日期:2020-02-01 00:00:00
abstract::We aimed to assess the prognostic role of pretreatment neutrophilia, lymphocytopenia, and neutrophil to lymphocyte ratio (NLR) in patients treated with vascular endothelial growth factor-tyrosine kinase inhibitors (VEGFR-TKIs) for late relapsing (>5 years) metastatic renal cell carcinoma (mRCC). Data were collected fr...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-014-0356-3
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:To determine the efficacy of first-generation epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) in molecularly selected patients with advanced non-small cell lung cancer (NSCLC), we performed this pooled analysis. METHOD:Randomized trials of EGFR-TKIs as treatment for advanced NSCLC wer...
journal_title:Targeted oncology
pub_type: 杂志文章,meta分析,收录出版
doi:10.1007/s11523-015-0376-7
更新日期:2016-02-01 00:00:00
abstract::ABP 980 was developed as a biosimilar to trastuzumab, a monoclonal antibody targeting human epidermal growth factor receptor 2 (HER2), that is indicated for the treatment of HER2-positive metastatic breast cancer, early breast cancer (EBC), and metastatic gastric cancer. ABP 980 is approved in the United States, Europ...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-019-00675-z
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:The prognosis of patients with advanced pancreatic cancer is dismal, and there is a need for novel and effective treatments. OBJECTIVES:Tο determine the maximum tolerated dose (MTD) and dose-limiting toxicities (DLTs) of a novel gemcitabine (G) and temsirolimus (T) combination (phase I) and estimate the 6-m...
journal_title:Targeted oncology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s11523-018-0605-y
更新日期:2018-12-01 00:00:00
abstract::Sorafenib (Nexavar®) is currently the only systemic agent approved for use in hepatocellular carcinoma (HCC). Its approval was based on the results of the pivotal SHARP and Sorafenib Asia-Pacific (AP) trials in Child-Pugh (CP) class A patients with advanced HCC, which showed significantly longer median overall surviva...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-017-0484-7
更新日期:2017-04-01 00:00:00
abstract::The influence of tumor infiltrating lymphocytes on tumor growth and response to therapy is becoming increasingly apparent. While much work has focused on the role of T cell responses in anti-tumor immunity, the role of B cells in solid tumors is much less understood. Tumor infiltrating B cells have been found in a var...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-017-0481-x
更新日期:2017-04-01 00:00:00
abstract::Chemotherapy represents the mainstay of non-small cell lung cancer (NSCLC) treatment, but response is usually observed in only one out of three patients. Massive efforts have been carried out to identify biomarkers that might help clinicians to choose appropriate drugs, by identifying potentially sensitive subjects an...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-010-0132-y
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:The WEE1 inhibitor adavosertib (AZD1775) has been investigated in Western patients. OBJECTIVE:This open-label Phase Ib study (NCT02341456) investigated the safety, pharmacokinetics, and clinical activity of adavosertib in combination with carboplatin alone or paclitaxel plus carboplatin in Asian patients wi...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-020-00701-5
更新日期:2020-02-01 00:00:00
abstract::With the incorporation of targeted therapies in routine cancer therapy, it is imperative that the array of toxicities associated with these agents be well-recognized and managed, especially since these toxicities are distinct from those seen with conventional cytotoxic agents. This review will focus on these renal tox...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-015-0368-7
更新日期:2015-12-01 00:00:00
abstract::Several angiogenesis inhibitors have been approved for commercial use and many additional agents are under development for the treatment of various malignancies. Cardiovascular toxicities have been increasingly recognized as effects of this entire class of new anticancer therapeutics. There is a limited but growing un...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-009-0106-0
更新日期:2009-04-01 00:00:00
abstract:BACKGROUND:Golgi phosphoprotein 2 (GOLPH2) has been shown to be involved in chronic inflammatory processes and carcinogenesis. GOLPH2 is prominently overexpressed in hepatocellular carcinoma, melanoma, glioblastoma, prostate, lung, and colorectal cancer. With a low and tightly regulated expression in non-malignant tiss...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-019-00667-z
更新日期:2019-10-01 00:00:00
abstract::In anticancer drug development, there has been increasing consideration for the potential of a compound to cause adverse electrocardiographic changes, especially QT interval prolongation, which can be associated with risk of torsades de pointes and sudden death. Irrespective of overt clinical toxicities, QTc assessmen...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-014-0325-x
更新日期:2015-03-01 00:00:00
abstract::Erlotinib is an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor. Efficacy of this drug was documented in the BR.21 trial showing that adenocarcinoma, female gender, Asian ethnicity and never-smoker status are predictive of clinical response to erlotinib. Retrospective studies documented the same bene...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-010-0163-4
更新日期:2010-12-01 00:00:00
abstract::Indoleamine 2,3-dioxygenase (IDO) and tryptophan 2,3-dioxygenase (TDO) catalyze the first rate-limiting step in the oxidative metabolism of compounds containing indole rings, including the transformation of the essential amino acid L-tryptophan to N-formyl-L-kynurenine. Through direct and indirect means, IDO exerts bo...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-017-0547-9
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND:Sunitinib (S) is a multi-targeted tyrosine kinase inhibitor. It is synergistic with chemotherapy in preclinical models. We hypothesized that sunitinib in combination with fluorouracil, leucovorin, and irinotecan (FOLFIRI) would be a tolerable and effective regimen in advanced gastric and gastroesophageal jun...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-019-00692-y
更新日期:2020-02-01 00:00:00
abstract::Obinutuzumab (Gazyva®, Gazyvaro®) is a recombinant, monoclonal, humanized and glycoengineered, type II, anti-CD20, IgG1 antibody. It has recently been granted an additional indication for the treatment of patients with follicular lymphoma who relapsed after, or are refractory to, a rituximab-containing regimen. In the...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-017-0485-6
更新日期:2017-04-01 00:00:00
abstract::Hypoxia is a critical hallmark of solid tumors and involves enhanced cell survival, angiogenesis, glycolytic metabolism, and metastasis. Hyperbaric oxygen (HBO) treatment has for centuries been used to improve or cure disorders involving hypoxia and ischemia, by enhancing the amount of dissolved oxygen in the plasma a...
journal_title:Targeted oncology
pub_type: 杂志文章,评审
doi:10.1007/s11523-012-0233-x
更新日期:2012-12-01 00:00:00
abstract::Among neuroendocrine carcinomas of the gut, well-differentiated tumors are highly vascularized, featuring specific characteristics on contrast-enhanced imaging. Well-differentiated neuroendocrine tumors spontaneously harbor hypervascular enhancement, coexisting with areas of necrosis mainly located at the center of tu...
journal_title:Targeted oncology
pub_type: 杂志文章
doi:10.1007/s11523-012-0216-y
更新日期:2012-06-01 00:00:00