Abstract:
:A splice variant of the human gene HER2, lacking exon-16 (DeltaHER2) which encodes a small extracellular region, has been described. This altered receptor forms disulfide bond-stabilized homodimers. We report here that the DeltaHER2 splice variant represents about 9% of the HER2 mRNA obtained from most of the 46 breast carcinoma samples with HER2 expression levels ranging from 3+ to 0 by HercepTest. Analysis of human cells transfected with DeltaHER2 or wild-type (WT) cDNA revealed no growth of WT cells in nude mice, whereas clones expressing 10-fold less DeltaHER2 were tumorigenic. Unlike WT transfectants, DeltaHER2-expressing cells showed low sensitivity to two new therapeutic drugs targeting receptors of the HER family (ZD1839 and Trastuzumab), whereas an inhibitor of the HER2 tyrosine kinase domain (Emodin) blocked activation of both DeltaHER2 and WT transfectants. Taken together, our findings indicate that the DeltaHER2 transcript encodes the transforming form of the oncoprotein. It is plausible that malignant transformation arises when a critical threshold of DeltaHER2 is reached in HER2-overexpressing tumors. Specific inhibitors of HER2 catalytic activity represent a promising approach to therapy of HER2-overexpressing tumors.
journal_name
Endocr Relat Cancerjournal_title
Endocrine-related cancerauthors
Castiglioni F,Tagliabue E,Campiglio M,Pupa SM,Balsari A,Ménard Sdoi
10.1677/erc.1.01047subject
Has Abstractpub_date
2006-03-01 00:00:00pages
221-32issue
1eissn
1351-0088issn
1479-6821pii
13/1/221journal_volume
13pub_type
杂志文章abstract::Endometrial cancer risk is strongly influenced by obesity, but the mechanisms of action remain unclear. Leptin and adiponectin, secreted from adipose tissue, reportedly play a role in such carcinogenic processes as cell proliferation, angiogenesis, and insulin regulation. In this case-control study, nested within the ...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,随机对照试验
doi:10.1530/ERC-12-0229
更新日期:2013-02-18 00:00:00
abstract::Resistance to anoikis (matrix deprivation-induced apoptosis) is a critical component of the metastatic cascade. Molecular mechanisms underlying resistance to anoikis have not been reported in thyroid cancer cells. For an in vitro model of anoikis, we cultured follicular, papillary, and anaplastic thyroid cancer cell l...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-10-0289
更新日期:2011-09-20 00:00:00
abstract::CD74, the invariant chain of major histocompatibility complex class II, is also a receptor for macrophage migration inhibitory factor (MIF). CD74 and MIF have been associated with tumor progression and metastasis in hematologic and solid tumors. In this study, we found that 60 and 65% of papillary thyroid cancers were...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-14-0269
更新日期:2015-04-01 00:00:00
abstract::The HIV protease inhibitor Nelfinavir (NFV) inhibits PI3K/AKT and MAPK/ERK signaling pathways, emerging targets in thyroid cancers. We examined the effects of NFV on cancer cells that derived from follicular (FTC), papillary (PTC) and anaplastic (ATC) thyroid cancers. NFV (1-20 µM) was tested in FTC133, BCPAP and SW17...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-16-0568
更新日期:2017-03-01 00:00:00
abstract::The realization that microRNAs (miRNAs) are frequently deregulated in malignancy has had a major impact on cancer research. In particular, the recent finding that highly stable forms of miRNAs can be accurately measured in body fluids, including blood, has generated considerable excitement. Here, we discuss the potent...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-12-0010
更新日期:2012-06-18 00:00:00
abstract::Oestrogen receptors (ESRs) regulate the growth and differentiation of normal ovarian epithelia. However, to date their role as biomarkers in the clinical setting of ovarian cancer remains unclear. In view of potential endocrine treatment options, we tested the role of ESR1 mRNA expression in ovarian cancer in the cont...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-08-0342
更新日期:2009-12-01 00:00:00
abstract::Preclinical and clinical studies support that Notch signaling may play an important oncogenic role in cancer, but there is scarce information for pituitary tumors. We therefore undertook a functional study to evaluate Notch participation in pituitary adenoma growth. Tumors generated in Nude mice by subcutaneous GH3 so...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-18-0337
更新日期:2019-01-01 00:00:00
abstract::Type 3 deiodinase (DIO3, D3) is reactivated in human neoplasias. Increased D3 levels in papillary thyroid carcinoma (PTC) have been associated with tumor size and metastatic disease. The objective of this study is to investigate the signaling pathways involved in DIO3 upregulation in PTC. Experiments were performed in...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-15-0162
更新日期:2016-03-01 00:00:00
abstract::The molecular pathways leading to thyroid follicular neoplasia are incompletely understood, and the diagnosis of follicular tumors is a clinical challenge. To provide leads to the pathogenesis and diagnosis of the tumors, we examined the global transcriptome signatures of follicular thyroid carcinoma (FC) and normofol...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-09-0288
更新日期:2010-07-28 00:00:00
abstract::Resistance to chemotherapy is a critical issue in the management of breast cancer patients. The nature of clinical drug resistance is likely to be multifactorial. However, in the last decade considerable attention has been dedicated to the role played by membrane transporter proteins belonging to the ATP binding casse...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/erc.0.0100043
更新日期:2003-03-01 00:00:00
abstract::Obesity is associated with a range of health outcomes that are of clinical and public health significance, including cancer. Herein, we summarize epidemiologic and preclinical evidence for an association between obesity and increased risk of breast and prostate cancer incidence and mortality. Moreover, we describe dat...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-15-0400
更新日期:2015-12-01 00:00:00
abstract::Therapeutic options for patients with metastatic medullary thyroid carcinoma (MTC) are limited due to lack of effective treatments. Thus, there is a need to thoroughly characterize the pathways of molecular pathogenesis and to identify potential targets for therapy in MTC. Since epidermal growth factor receptor (EGFR)...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-08-0304
更新日期:2010-01-29 00:00:00
abstract::The treatment of hormone hypersecretory syndromes caused by neuroendocrine tumors (NETs) can be a major challenge. NETs originating from the small intestine often secrete serotonin causing flushing, diarrhea and valve fibrosis, leading to dehydration or heart failure in severe cases. NETs from the pancreas can secrete...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-16-0538
更新日期:2017-07-01 00:00:00
abstract::Endocrine therapy has become the most important treatment option for women with estrogen receptor (ER)-positive breast cancer. Urgently needed are prognostic assays that can identify those who need additional adjuvant therapy, such as signal transduction inhibitors or chemotherapy, for ER-positive early breast cancer....
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-08-0078
更新日期:2008-09-01 00:00:00
abstract::ThyroSeq v2 claims high positive (PPV) and negative (NPV) predictive values in a wide range of pretest risks of malignancy in indeterminate thyroid nodules (ITNs) (categories B-III and B-IV of the Bethesda system). We evaluated ThyroSeq v2 performance in a cohort of patients with ITNs seen at our Academic Cancer Cente...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-16-0512
更新日期:2017-03-01 00:00:00
abstract::Neuroendocrine tumours (NET) of the gastroenteropancreatic system comprise a malignant entity with a low incidence. Only limited information is available on long-term clinical outcome and clinically applicable prognostic factors. We performed a retrospective analysis of a large, well-characterized centre-based patient...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-08-0017
更新日期:2008-12-01 00:00:00
abstract::Thyroid cancer is the most common cancer of the endocrine system and is responsible for the majority of deaths from endocrine malignancies. Although a large proportion of thyroid cancers belong to well differentiated histologic subtypes, which in general show a good prognosis after surgery and radioiodine ablation, th...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-13-0271
更新日期:2013-12-16 00:00:00
abstract::Deprivation of estrogen causes breast tumors in women to adapt and develop enhanced sensitivity to this steroid. Accordingly, women relapsing after treatment with oophorectomy, which substantially lowers estradiol for a prolonged period, respond secondarily to aromatase inhibitors with tumor regression. We have utiliz...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/erc.1.01018
更新日期:2005-07-01 00:00:00
abstract::The androgen receptor (AR) mediates the effects of male steroid hormones (androgens) and contributes to a wide variety of physiological and pathophysiological conditions. As such, the regulatory mechanisms governing AR activity are of high significance. Concerted effort has been placed on delineating the mechanisms th...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/erc.1.01115
更新日期:2006-12-01 00:00:00
abstract::Although targeted therapy, including inhibitors of mammalian target of rapamycin (mTOR) and vascular endothelial growth factor, being developed for carcinoids arised from the gastrointestinal tract, treatment for locally advanced or metastatic bronchial carcinoids (BCs) remains lacking. Traditional cytotoxic chemother...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-10-0290
更新日期:2011-04-28 00:00:00
abstract::Studies of cell models and profiling of clinical breast cancer material to reveal the mechanisms of resistance to anti-oestrogen therapy, and to tamoxifen in particular, have reported that this phenomenon can be associated with increased expression and signalling through erbB Type 1 growth factor receptors, notably th...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/erc.1.01059
更新日期:2005-07-01 00:00:00
abstract::Thyrotoxicosis with concomitant thyroid cancer is rare and poorly recognized, which may result in delayed diagnosis, inappropriate treatment and even poor prognosis. To provide a comprehensive guidance for clinicians, the etiology, pathogenesis, diagnosis and treatment of this challenging setting were systematically r...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-19-0129
更新日期:2019-07-01 00:00:00
abstract::Most endocrine therapies for breast cancer inhibit tumor growth by depriving the cell of estrogen or by blocking its receptor. However, some drugs, such as tamoxifen, can bind to the estrogen receptor (ER) and have both estrogenic and antiestrogenic effects, depending on the tissue, cell, or promoter context. These mi...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/erc.0.0060271
更新日期:1999-06-01 00:00:00
abstract::Because intracellular polyamines have a critical role in cell proliferation and death pathways, the polyamine metabolic pathway represents a potential target for intervention in cancers. A number of polyamine analogues have been identified that downregulate polyamine synthesis and enhance polyamine catabolism, thereby...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/erc.0.0060069
更新日期:1999-03-01 00:00:00
abstract::Quantitative reverse transcription-polymerase chain reaction (RT-PCR) used to detect minor changes in specific mRNA concentrations may be associated with poor reproducibility. Stringent quality control is therefore essential at each step of the protocol, including the PCR procedure. We performed inter-laboratory quali...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/erc.1.00808
更新日期:2004-09-01 00:00:00
abstract::Breast and prostate cancer are the most well-characterized cancers of the type that have their development and growth controlled by the endocrine system. These cancers are the leading causes of cancer death in women and men, respectively, in the United States. Being hormone-dependent tumors, antihormone therapies usua...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/erc.1.01026
更新日期:2005-09-01 00:00:00
abstract::Anaplastic thyroid cancer is one of the most lethal diseases, and a curative therapy does not exist. Doxorubicin, the only drug approved for anaplastic thyroid cancer treatment, has a very low response rate and causes numerous side effects among which cardiotoxicity is the most prominent. Thus, doxorubicin delivery to...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-17-0045
更新日期:2017-06-01 00:00:00
abstract::The genetics behind predisposition to small intestinal neuroendocrine tumors (SI-NETs) is largely unknown, but there is growing awareness of a familial form of the disease. We aimed to identify germline mutations involved in the carcinogenesis of SI-NETs. The strategy included next-generation sequencing of exome- and/...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-17-0196
更新日期:2017-08-01 00:00:00
abstract::Overexpression of human epidermal growth factor receptor 2 (HER2) predicts response to anti-HER2 therapy in breast cancer. We investigated whether hormone receptor (HR) status influences the treatment benefit of trastuzumab in patients with breast cancer. Data from 8338 patients with primary nonmetastatic breast cance...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-16-0084
更新日期:2016-05-01 00:00:00
abstract::This study was designed to address whether simultaneous primary chemo-hormonal therapy provides additional activity compared with chemotherapy alone in breast cancer patients with operable or locally advanced disease. Between January 1997 and January 2002, 211 consecutive patients with T2-4, N0-1, M0 breast cancer wer...
journal_title:Endocrine-related cancer
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1677/erc.1.00945
更新日期:2005-06-01 00:00:00