Abstract:
:Cetuximab, an antibody against the EGFR, has shown efficacy in treating head and neck squamous cell carcinoma (HNSCC), metastatic colorectal cancer, and non-small cell lung cancer (NSCLC). Despite the clinical success of cetuximab, many patients do not respond to cetuximab. Furthermore, virtually all patients who do initially respond become refractory, highlighting both intrinsic and acquired resistance to cetuximab as significant clinical problems. To understand mechanistically how cancerous cells acquire resistance, we previously developed models of acquired resistance using the H226 NSCLC and UM-SCC1 HNSCC cell lines. Cetuximab-resistant clones showed a robust upregulation and dependency on the HER family receptors EGFR, HER2, and HER3. Here, we examined pan-HER, a mixture of six antibodies targeting these receptors on cetuximab-resistant clones. In cells exhibiting acquired or intrinsic resistance to cetuximab, pan-HER treatment decreased all three receptors' protein levels and downstream activation of AKT and MAPK. This correlated with decreased cell proliferation in cetuximab-resistant clones. To determine whether pan-HER had a therapeutic benefit in vivo, we established de novo cetuximab-resistant mouse xenografts and treated resistant tumors with pan-HER. This regimen resulted in a superior growth delay of cetuximab-resistant xenografts compared with mice continued on cetuximab. Furthermore, intrinsically cetuximab-resistant HNSCC patient-derived xenograft tumors treated with pan-HER exhibited significant growth delay compared with vehicle/cetuximab controls. These results suggest that targeting multiple HER family receptors simultaneously with pan-HER is a promising treatment strategy for tumors displaying intrinsic or acquired resistance to cetuximab. Mol Cancer Ther; 15(9); 2175-86. ©2016 AACR.
journal_name
Mol Cancer Therjournal_title
Molecular cancer therapeuticsauthors
Iida M,Bahrar H,Brand TM,Pearson HE,Coan JP,Orbuch RA,Flanigan BG,Swick AD,Prabakaran PJ,Lantto J,Horak ID,Kragh M,Salgia R,Kimple RJ,Wheeler DLdoi
10.1158/1535-7163.MCT-16-0012subject
Has Abstractpub_date
2016-09-01 00:00:00pages
2175-86issue
9eissn
1535-7163issn
1538-8514pii
1535-7163.MCT-16-0012journal_volume
15pub_type
杂志文章abstract::The expression of cyclooxygenase (COX)-2 is increased in human cancers including cholangiocarcinoma. This study was designed to evaluate the effect and mechanisms of the selective COX-2 inhibitor celecoxib in the growth control of human cholangiocarcinoma cells. Immunohistochemical analysis using human cholangiocarcin...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:
更新日期:2004-03-01 00:00:00
abstract::ABT-263 is a potent, orally bioavailable inhibitor of the antiapoptotic Bcl-2 family members Bcl-2, Bcl-x(L), and Bcl-w, which is currently in phase I clinical trials. Previous work has shown that this compound has low nanomolar cell-killing activity in a variety of lymphoma and leukemia cell lines, many of which over...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-08-0268
更新日期:2008-10-01 00:00:00
abstract::The increasing characterization of childhood acute lymphoblastic leukemia (ALL) has led to the identification of multiple molecular targets but has yet to translate into more effective targeted therapies, particularly for high-risk, relapsed T-cell ALL. Searching for master regulators controlling multiple signaling pa...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-17-0099
更新日期:2017-07-01 00:00:00
abstract::Antiangiogenic therapies targeting VEGFA have been commonly used in clinics to treat cancers over the past decade. However, their clinical efficacy has been limited, with drawbacks including acquisition of resistance and activation of compensatory pathways resulting from elevated circulating VEGFB and placental growth...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-14-0968-T
更新日期:2015-02-01 00:00:00
abstract::Multiple roles within mitosis have been assigned to Polo-like kinase 1 (Plk1), making it an attractive candidate for mitotic targeting of cancer cells. We have employed chimeric antisense oligonucleotides to investigate the molecular alterations after targeted interference with Plk1 in RKO human colon adenocarcinoma a...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-05-0455
更新日期:2006-04-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-19-0387
更新日期:2020-01-01 00:00:00
abstract::Radiotherapy, a frequent mode of cancer treatment, is often restricted by dose-related toxicity and development of therapeutic resistance. To develop a novel and selective radiosensitizer, we studied the radiosensitizing effects and associated mechanisms of silibinin in prostate cancer. The radiosensitizing effect of ...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-15-0348
更新日期:2015-12-01 00:00:00
abstract::Soluble copolymers of camptothecin (CPT), based on poly[N-(2-hydroxypropyl) methacrylamide] (pHPMA), were obtained by conjugation through the degradable spacers -Gly-Phe-Leu-Gly- or -Gly-6-aminohexanoyl-Gly-. We investigated to what extent passive accumulation and retention of hydroxypropyl methacrylamide copolymer of...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::Peroxisome proliferator-activated receptor γ (PPARγ) is an important transcription factor that modulates lipid metabolism and inflammation. However, it remains unclear whether PPARγ is involved in modulation of estrogen (E2)-induced inflammation, thus affecting apoptosis of E2-deprived breast cancer cells, MCF-7:5C an...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-18-0088
更新日期:2018-12-01 00:00:00
abstract::Stem cell factor (SCF)/Kit and insulin-like growth factor-I (IGF-I)/IGF-I receptor (IGF-IR) autocrine loops play a prominent role in the growth of small cell lung cancer (SCLC). Previous data suggested that IGF-I protects cells from apoptosis induced by STI571, an efficient inhibitor of Kit signal transduction, by act...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:
更新日期:2004-05-01 00:00:00
abstract::Spongistatin 1, a marine experimental substance with chemotherapeutic potential, induces apoptosis and inhibits clonogenic survival of MCF-7 cells. Regarding the apoptotic signaling pathways of spongistatin 1, we present two major facts. Firstly, spongistatin 1-induced cell death, mainly caspase-independent, involves ...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-08-1179
更新日期:2009-10-01 00:00:00
abstract::Hodgkin-Reed/Sternberg (HRS) cells of classical Hodgkin lymphoma show aberrant expression and activation of several receptor tyrosine kinases (RTK) in the majority of cases. Therefore, we tested whether tyrosine kinase inhibitors (TKI) already in clinical use or late stages of clinical trials have antiproliferative ef...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-12-0532
更新日期:2013-02-01 00:00:00
abstract::Radiosensitization caused by the poly(ADP-ribose) polymerase (PARP) inhibitor 4-amino-1,8-naphthalimide (ANI) was investigated in 10 asynchronously growing rodent (V79, CHO-Xrs6, CHO-K1, PARP-1+/+ 3T3, and PARP-1-/- 3T3) or human (HeLa, MRC5VI, IMR90, M059J, and M059K) cell lines, either repair proficient or defective...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-05-0418
更新日期:2006-03-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-20-0333
更新日期:2021-01-01 00:00:00
abstract::Phospho-sulindac is a sulindac derivative with promising anticancer activity in lung cancer, but its limited metabolic stability presents a major challenge for systemic therapy. We reasoned that inhalation delivery of phospho-sulindac might overcome first-pass metabolism and produce high levels of intact drug in lung ...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-13-0006-T
更新日期:2013-08-01 00:00:00
abstract::Patients with non-small cell lung carcinoma (NSCLC) with activating mutations in epidermal growth factor receptor (EGFR) initially respond well to the EGFR inhibitors erlotinib and gefitinib. However, all patients relapse because of the emergence of drug-resistant mutations, with T790M mutations accounting for approxi...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-13-0966
更新日期:2014-06-01 00:00:00
abstract::Recombinant immunotoxins, consisting of single-chain variable fragments (scFv) genetically fused to polypeptide toxins, represent potentially effective candidates for cancer therapeutics. We evaluated the affinity of various anti-Her2/neu scFv fused to recombinant gelonin (rGel) and its effect on antitumor efficacy an...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-11-0519
更新日期:2012-01-01 00:00:00
abstract::Emerging evidence suggests that autophagic modulators have therapeutic potential. This study aims to identify novel autophagic inducers from traditional Chinese medicinal herbs as potential antitumor agents. Using an image-based screen and bioactivity-guided purification, we identified alisol B 23-acetate, alisol A 24...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-09-0700
更新日期:2010-03-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-07-0192
更新日期:2008-01-01 00:00:00
abstract::We previously reported that angiotensin II type 1 receptor (AT1R) antagonists enhanced the cytotoxity of cis-dichlorodiammineplatinum (CDDP) in a bladder cancer xenograft model. To elucidate the synergistic mechanism, we investigated whether reactive oxygen species (ROS) generation induced by CDDP may affect the regul...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-10-0535
更新日期:2010-11-01 00:00:00
abstract::Mutations in ERK signaling drive a significant percentage of malignancies. LY3009120, a pan-RAF and dimer inhibitor, has preclinical activity in RAS- and BRAF-mutated cell lines including BRAF-mutant melanoma resistant to BRAF inhibitors. This multicenter, open-label, phase I clinical trial (NCT02014116) consisted of ...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章,多中心研究
doi:10.1158/1535-7163.MCT-19-0681
更新日期:2020-02-01 00:00:00
abstract::Tumor recurrence after curative resection remains a major problem in patients with locally advanced colorectal cancer treated with adjuvant chemotherapy. Genetic single-nucleotide polymorphisms (SNP) may serve as useful molecular markers to predict clinical outcomes in these patients and identify targets for future dr...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-13-0646
更新日期:2014-02-01 00:00:00
abstract::HER3 is overexpressed in several cancers, including colorectal cancer. Although therapies with anti-HER3 antibodies have been investigated, significant clinical benefits have not been reported. U3-1402 is a novel HER3-antibody-drug conjugate (ADC) composed of the HER3 antibody patritumab and a novel topoisomerase I in...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-19-0452
更新日期:2019-11-01 00:00:00
abstract::Protein tyrosine kinases of the Janus kinase (JAK) family are associated with many cytokine receptors, which, on ligand binding, regulate important cellular functions such as proliferation, survival, and differentiation. In multiple myeloma, JAKs may be persistently activated due to a constant stimulation by interleuk...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-08-0149
更新日期:2009-01-01 00:00:00
abstract::DNA cytosine methylation plays a considerable role in normal development, gene regulation, and carcinogenesis. Hypermethylation of the promoters of some tumor suppressor genes and the associated silencing of these genes often occur in certain cancer types. The reversal of this process by DNA methylation inhibitors is ...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-05-0172
更新日期:2005-10-01 00:00:00
abstract::Acquired resistance severely hinders the application of small-molecule inhibitors. Our understanding of acquired resistance related to FGFRs is limited. Here, to explore the underlying mechanism of acquired resistance in FGFR-aberrant cancer cells, we generated cells resistant to multiple FGFR inhibitors (FGFRi) and i...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-18-0179
更新日期:2019-03-01 00:00:00
abstract::HA14-1 is a small molecular compound that was identified based on the structure of Bcl-2. HA14-1 interacts with Bcl-2 and inhibits the antiapoptotic effect of Bcl-2. We investigated the mechanism of HA14-1-induced apoptosis and found that HA14-1 induces translocation of Bax from cytosols to the mitochondria. Cells def...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:
更新日期:2002-10-01 00:00:00
abstract::Most patients with late-stage high-grade serous ovarian cancer (HGSOC) initially respond to chemotherapy but inevitably relapse and develop resistance, highlighting the need for novel therapies to improve patient outcomes. The MEK/ERK pathway is activated in a large subset of HGSOC, making it an attractive therapeutic...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-18-0413
更新日期:2019-03-01 00:00:00
abstract::Antiestrogens are effective therapies for the management of many estrogen receptor-alpha (ER)-positive breast cancers. Nonetheless, both de novo and acquired resistance occur and remain major problems in the clinical setting. IFNgamma is an inflammatory cytokine that induces the expression and function of IFN regulato...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-09-1169
更新日期:2010-05-01 00:00:00
abstract::CIGB-300, formerly known as P15-tat, is a proapoptotic peptide with established antiproliferative activity in vitro and antitumoral activity in vivo. This hypothesis-driven peptide was initially selected for its ability to impair the in vitro CK2-mediated phosphorylation in one of its substrates through direct binding...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-08-1056
更新日期:2009-05-01 00:00:00