Abstract:
BACKGROUND:Lapatinib, a dual EGFR and HER2 inhibitor has shown disappointing results in clinical trials of metastatic oesophago-gastric adenocarcinomas (OGAs), and in vitro studies suggest that MET, IGFR, and HER3 confer resistance. This trial applied Lapatinib in the curative neoadjuvant setting and investigated the feasibility and utility of additional endoscopy and biopsy for assessment of resistance mechanisms ex vivo and in vivo. METHODS:Patients with HER2 overexpressing OGA were treated for 10 days with Lapatinib monotherapy, and then in combination with three cycles of Oxaliplatin and Capecitabine before surgery. Endoscopic samples were taken for molecular analysis at: baseline including for ex vivo culture +/- Lapatinib to predict in vivo response, post-Lapatinib monotherapy and at surgery. Immunohistochemistry (IHC) and proteomic analysis was performed to assess cell kinetics and signalling activity. RESULTS:The trial closed early (n=10) due to an anastomotic leak in two patients for which a causative effect of Lapatinib could not be excluded. The reduction in Phosphorylated-HER2 (P-HER2) and P-EGFR in the ex vivo-treated biopsy demonstrated good correlation with the in vivo response at day 10. Proteomic analysis pre and post-Lapatinib demonstrated target inhibition (P-ERBB2, P-EGFR, P-PI3K, P-AKT, and P-ERK) that persisted until surgery. There was also significant correlation between the activation of MET with the level of P-Erk (P=0.0005) and P-PI3K : T-PI3K (total PI3K) ratio (P=0.0037). There was no significant correlation between the activation status of IGFR and HER3 with downstream signalling molecules. CONCLUSIONS:Additional endoscopy and biopsy sampling for multiple biomarker endpoints was feasible and confirmed in vitro data that MET is likely to be a significant mechanism of Lapatinib resistance in vivo.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
De Silva N,Schulz L,Paterson A,Qain W,Secrier M,Godfrey E,Cheow H,O'Donovan M,Lao-Sirieix P,Jobanputra M,Hochhauser D,Fitzgerald R,Ford Hdoi
10.1038/bjc.2015.342subject
Has Abstractpub_date
2015-11-03 00:00:00pages
1305-12issue
9eissn
0007-0920issn
1532-1827pii
bjc2015342journal_volume
113pub_type
临床试验,杂志文章,多中心研究abstract::Using bivariate flow cytofluorometry, we have determined the nuclear DNA distribution and the expression of the p21 protein (coded by the Ha-ras oncogene) in the bone marrow (BM) cells of five solid tumour patients having histologically normal BM and in those of 57 patients with plasma cell dyscrasia (28 with monoclon...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1990.379
更新日期:1990-11-01 00:00:00
abstract::To investigate liver cancer-associated genes and to explore the molecular basis of liver cancer genesis, we have cloned a novel hepatocellular carcinoma (HCC)-related gene with a transcript of 2520 base pairs in length named HCCA2 by mRNA differential display polymerase chain reaction (DDPCR) and screening a placenta ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2001.2059
更新日期:2001-10-19 00:00:00
abstract::Growth factor-induced migration is a rate-limiting step in tumour invasiveness. The molecules that regulate this cellular behaviour would represent novel targets for limiting tumour cell progression. Epidermal growth factor (EGF) receptor (EGFR)-mediated motility, present in both autocrine and paracrine modes in prost...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6603234
更新日期:2006-07-17 00:00:00
abstract::Major advances in cancer immunotherapy have dramatically expanded the potential to manipulate immune cells in cancer patients with metastatic disease to counteract cancer spread and extend patient lifespan. One of the most successful types of immunotherapy is the immune checkpoint inhibitors, such as anti-CTLA-4 and a...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/s41416-020-01160-5
更新日期:2021-01-01 00:00:00
abstract::The RNASEL gene on chromosome 1q25 has been identified as a prostate cancer susceptibility gene. We screened for RNASEL germline mutations in familial prostate cancer patients, and performed a case-control study to examine the association of specific variants with prostate cancer risk in the Japanese. Three variants w...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601075
更新日期:2003-08-18 00:00:00
abstract::Somatostatin analogues may be useful novel agents in the systemic treatment of advanced colorectal cancer, as somatostatin inhibits proliferation in a wide variety of cell types. Here, we report the expression profiles of somatostatin receptor mRNAs in 32 pairs of malignant and normal colonic epithelia. Receptor subty...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1997.59
更新日期:1997-01-01 00:00:00
abstract::Studies in animal tumour models of colorectal cancer suggest that F(ab')2 antibody fragments to carcinoembryonic antigen (CEA) labelled with iodine-131 give superior therapy compared with intact anti-CEA antibody. The purpose of this study was to investigate this hypothesis in patients. Ten patients received intact A5...
journal_title:British journal of cancer
pub_type: 临床试验,杂志文章
doi:10.1038/bjc.1994.338
更新日期:1994-09-01 00:00:00
abstract::Both biodegradable emboli and pharmacological agents can enhance regional therapy for hepatic targeting. Using a rat model with similar haemodynamic characteristics to human colorectal liver tumour and a radio-labelled marker of similar molecular weight to Adriamycin, we have combined the two approaches to see if the ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1992.7
更新日期:1992-01-01 00:00:00
abstract::Experiments were conducted to determine whether bladder cancer would develop in primates (Papio sp.) infected with S. haematobium and concurrently exposed to low initiating doses of the bladder carcinogen N-butyl-N-(4-hydroxybutyl)nitrosamine (BBN). To control for the systemic effects of schistosomiasis, 5 baboons wer...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1980.308
更新日期:1980-11-01 00:00:00
abstract::The aim of this study was to examine the effects of oral and transdermal oestrogen replacement therapy on the risk of colorectal cancer. Data from a nested case-control study, designed to investigate the effect of hormone replacement therapy (HRT) on colorectal cancer were analysed. New cases of colorectal cancer, dia...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601438
更新日期:2004-01-12 00:00:00
abstract::The aim of this study was to assess the relationship between haemoglobin level and quality-of-life in anaemic cancer patients. Patients, diagnosed with one of four cancers, were recruited if their haemoglobin level was <12 g dl(-1) (female) or <13 g dl(-1) (male). The condition-specific Functional Assessment of Cancer...
journal_title:British journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1038/sj.bjc.6600247
更新日期:2002-04-22 00:00:00
abstract:BACKGROUND:Complete tumour response (pCR) to neo-adjuvant chemo-radiotherapy for rectal cancer is associated with a reduction in local recurrence and improved disease-free and overall survival, but is achieved in only 20-30% of patients. Drug repurposing for anti-cancer treatments is gaining momentum, but the potential...
journal_title:British journal of cancer
pub_type: 杂志文章,meta分析
doi:10.1038/bjc.2017.175
更新日期:2017-07-11 00:00:00
abstract:BACKGROUND:The pathogenesis of lymph node metastases in preinvasive breast cancer – ductal carcinoma in situ (DCIS) – remains controversial. The one-step nucleic acid amplification (OSNA) assay is a novel molecular method that can assess a whole node and detect clinically relevant metastases. In this retrospective coho...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.168
更新日期:2012-05-08 00:00:00
abstract::The reverse transcription polymerase chain reaction (RT-PCR) amplification of cytokeratin 20 (CK20) mRNA is considered a promising candidate method for the detection of circulating tumour cells in bone marrow and peripheral blood of cancer patients. In this study we have investigated the diagnostic specificity of the ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690778
更新日期:1999-11-01 00:00:00
abstract::The expression of urokinase-type plasminogen activator (uPA) was investigated in squamous cell carcinoma of the human larynx. For this purpose, tissue extracts from 25 matched samples of normal mucosa and neoplastic larynx were compared for the levels of uPA activity as evaluated by a chromogenic PA assay and sodium d...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1996.512
更新日期:1996-10-01 00:00:00
abstract:BACKGROUND:Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) contains crucial information about tumour heterogeneity and the transport limitations that reduce drug efficacy. Mathematical modelling of drug delivery and cellular responsiveness based on underutilised DCE-MRI data has the unique potential to p...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605773
更新日期:2010-08-10 00:00:00
abstract:BACKGROUND:The National Comprehensive Cancer Network (NCCN) guidelines provide recommendations for staging of prostate cancer patients in the objective regarding presence of locoregional lymph node metastases (LNM) and bone metastases. We tested the performance characteristics of these recommendations in a community se...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-018-0323-3
更新日期:2018-12-01 00:00:00
abstract::Novel synthetic antagonists of retinoic acid receptors (RARs) have been developed. To avoid interference by serum retinoids when testing these compounds, we established serum-free grown sub-lines (>3 years) of the prostate carcinoma lines LNCaP, PC3 and DU145. A high affinity pan-RAR antagonist (AGN194310, K(d) for bi...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2001.1939
更新日期:2001-08-03 00:00:00
abstract::The prognostic value of tissue-type plasminogen activator (tPA) measured in samples derived from 865 patients with primary breast cancer using a recently developed enzyme-linked immunosorbent assay (ELISA) was evaluated. Since the assay could easily be adapted to the assessment of the complex of tPA with its type-1 in...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690353
更新日期:1999-04-01 00:00:00
abstract::Low-dose hyper-radiosensitivity (HRS) (below 0.5 Gy) has been extensively documented in the past few years. The molecular basis of this phenomenon remains largely unknown and the purpose of this study was to investigate the possible implication of the DNA repair DNA-PK complex. The activity of the DNA-PK complex, i.e....
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2000.1258
更新日期:2000-08-01 00:00:00
abstract::The relationship between history of schistosomiasis and bladder cancer risk was investigated using data from a case-control study conducted between January 1994 and July 1996 in Alexandria, Egypt. Cases were 190 subjects with incident, histologically confirmed invasive cancer of the bladder, and controls were 187 subj...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1998.197
更新日期:1998-04-01 00:00:00
abstract::We used a nested case-control design on data from men in four prospective studies (from the UK, Maryland in the USA, and two from Finland) with available stored serum samples to determine whether there was an advantage in measuring both free prostate-specific antigen (PSA) and total PSA as a potential screening test f...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.1999.0988
更新日期:2000-02-01 00:00:00
abstract:BACKGROUND:Older women have lower breast cancer surgery rates than younger women. UK policy states that differences in cancer treatment by age can only be justified by patient choice or poor health. METHODS:We investigate whether lack of surgery for older patients is explained by patient choice/poor health in a prospe...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.734
更新日期:2014-02-04 00:00:00
abstract::A number of growth factors have been implicated in the control of the proliferation of breast cancer cells and some have been reported to mediate the proliferative effects of oestradiol. MCF-7 cells were treated with growth factors in the presence and absence of oestradiol. Oestradiol increased the response of cells t...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1992.330
更新日期:1992-10-01 00:00:00
abstract::Pancreatic cancer is a highly lethal malignancy with a dismal 5-year survival of less than 5%. The scarcity of early biomarkers has considerably hindered our ability to launch preventive measures for this malignancy in a timely manner. Neutrophil gelatinase-associated lipocalin (NGAL), a 24-kDa glycoprotein, was repor...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6604329
更新日期:2008-05-06 00:00:00
abstract::The influence of human serum albumin (HA) on the biological effects of 13 chemotherapeutic agents was studied in vitro in the human leukaemia cell line MOLT-3. On the basis of changes in biological activity influenced by HA, these drugs may be divided into three types. Type I agents include cis-diamminedichloroplatinu...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1980.103
更新日期:1980-04-01 00:00:00
abstract::In vivo growth characteristics of myeloid leukaemia induced by whole-body irradiation of CBA/H male mice were examined in the strain of origin by procedures expected to enhance or depress immunological responses. Syngeneic growth in vivo (survival time and frequency of takes) was not modified by attempted active immun...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1982.68
更新日期:1982-03-01 00:00:00
abstract::The ribosome-inactivating proteins, bryodin, from Bryonia dioica, and momordin, from Momordica charantia, were coupled by a disulphide bond to a monoclonal anti-Thy 1.1 antibody (OX7). Both immunotoxins were specifically cytotoxic to the Thy 1.1-expressing mouse lymphoma cell line AKR-A in vitro. The OX7-bryodin immun...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1988.258
更新日期:1988-11-01 00:00:00
abstract:BACKGROUND:Accurate assessment of the prevalence of the human papilloma virus (HPV) in oropharyngeal tumours (OpSCC) is important because HPV-positive OpSCC are consistently associated with an improved overall survival. Recently, an algorithm has become available that reliably detects clinically relevant HPV in tumour ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2015.99
更新日期:2015-04-14 00:00:00
abstract::Induction of lipolysis in murine white adipocytes, and stimulation of adenylate cyclase in adipocyte plasma membranes, by a tumour-produced lipid mobilizing factor, was attenuated by low concentrations (10(-7)--10(-5)M) of the specific beta3-adrenoceptor antagonist SR59230A. Lipid mobilizing factor (250 nM) produced c...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6600086
更新日期:2002-02-01 00:00:00