Abstract:
:Obestatin was identified as a gut peptide encoded by the ghrelin gene that interacts with the G protein-coupled receptor, GPR39. In this work, a sequential analysis of its transmembrane signalling pathway has been undertaken to characterize the intracellular mechanisms responsible for Akt activation. The results show that Akt activation requires the phosphorylation of T308 in the A-loop by the phosphoinositide-dependent kinase 1 (PDK1) and S473 within the HM by the mammalian target of rapamycin (mTOR) kinase complex 2 (mTORC2: Rictor, mLST8, mSin1, mTOR kinase) with participation neither of G(i)(/o)-protein nor Gbetagamma dimers. Obestatin induces the association of GPR39/beta-arrestin 1/Src signalling complex resulting in the transactivation of the epidermal growth factor receptor (EGFR) and downstream Akt signalling. Upon administration of obestatin, phosphorylation of mTOR (S2448) and p70S6K1 (T389) rise with a time course that parallels that of Akt activation. Based on the experimental data obtained, a signalling pathway involving a beta-arrestin 1 scaffolding complex and EGFR to activate Akt signalling is proposed.
journal_name
Endocr Relat Cancerjournal_title
Endocrine-related cancerauthors
Alvarez CJ,Lodeiro M,Theodoropoulou M,Camiña JP,Casanueva FF,Pazos Ydoi
10.1677/ERC-08-0192subject
Has Abstractpub_date
2009-06-01 00:00:00pages
599-611issue
2eissn
1351-0088issn
1479-6821pii
ERC-08-0192journal_volume
16pub_type
杂志文章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::'Calcitonin screening' is not accepted as the standard of care in daily practice. The clinical and surgical consequences of 'calcitonin screening' in a series of patients with mildly elevated basal calcitonin and pentagastrin stimulated calcitonin levels are presented. 260 patients with elevated basal (>10 pg/ml) and ...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-08-0059
更新日期:2009-03-01 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::Paragangliomas (PGLs) have widely different metastastic potentials. Two different types of PGLs can be defined by expression profiling. Cluster 1 PGLs exhibit VHL and/or succinate dehydrogenase (SDH) mutations and a pseudohypoxic phenotype. RET and neurofibromatosis type 1 (NF1) mutations occur in cluster 2 tumors cha...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-10-0184
更新日期:2011-04-28 00:00:00
abstract::Prostate cancer (PCa) is one of the most common causes of male cancer-related death in Western nations. The cellular response to androgens is mediated via the androgen receptor (AR), a ligand-inducible transcription factor whose dysregulation plays a key role during PCa development and progression following androgen d...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-12-0401
更新日期:2013-03-26 00:00:00
abstract::Pancreatic endocrine tumors (PET) represent a heterogenous group of neoplasms. Although surgical resection is considered a safe and effective treatment for many PET, therapeutic options for inoperable and progressive PET are limited. The expression of heat-shock protein (HSP) 90 was investigated in 120 clinically and ...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-11-0227
更新日期:2012-05-03 00:00:00
abstract::This review focuses on the tumour types and symptoms associated with non-islet cell tumour-induced hypoglycaemia (NICTH) as well as the pathogenesis, diagnosis and treatment of this rare paraneoplastic phenomenon. In addition, we report two illustrative cases of patients suffering from NICTH caused by a solid fibrous ...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/ERC-07-0161
更新日期:2007-12-01 00:00:00
abstract::It is now recognized that transforming growth factor beta (TGF-beta) is an important factor that regulates normal breast development as well as breast cancer. Genetically engineered mouse models have been used to determine the role and mechanism of TGF-beta action in normal development and diseases of the breast. Usin...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/erc.1.00936
更新日期:2005-12-01 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::Selection of novel molecular markers is an important goal of cancer genomics studies. The aim of our analysis was to apply the multivariate bioinformatical tools to rank the genes - potential markers of papillary thyroid cancer (PTC) according to their diagnostic usefulness. We also assessed the accuracy of benign/mal...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-06-0048
更新日期:2007-09-01 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::Peroxisome proliferator-activated receptor gamma agonists have been proposed as breast cancer preventives. Individuals who carry a mutated copy of BRCA1, DNA repair-associated gene, are at increased risk for development of breast cancer. Published data in the field suggest there could be interactions between peroxisom...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-18-0449
更新日期:2019-02-01 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::Numerous epidemiological observations point to sex differences in lung cancer etiology and progression. The present study was aimed at understanding the bases of these sex differences. To test the effect of estradiol on tumor progression, we used a mouse model based on conditional Kras expression and concurrent deleti...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-08-0002
更新日期:2008-06-01 00:00:00
abstract::The concentrations of endogenous hormones differ between women with twin and singleton births, with a possible influence on the risk of cancer. We used the nationwide Swedish Family-Cancer Database, including 30,409 women with a twin birth, to examine the subsequent risks of breast, endometrial, and ovarian cancers. R...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-07-0088
更新日期:2007-09-01 00:00:00
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::Ten to fifteen percent of fine-needle aspiration biopsy (FNAB) of thyroid nodules are indeterminate. Galectin-3 (Gal-3) and the oncogene BRAFV600E are markers of malignancy useful to improve FNAB accuracy. The objective of this study was to determine whether the combined analysis of Gal-3 and BRAFV600E expression in t...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-07-0147
更新日期:2007-12-01 00:00:00
abstract::Deubiquitinases (DUBs) play important roles and therefore are potential drug targets in various diseases including cancer and neurodegeneration. In this review, we recapitulate structure-function studies of the most studied DUBs including USP7, USP22, CYLD, UCHL1, BAP1, A20, as well as ataxin 3 and connect them to reg...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-14-0516
更新日期:2015-02-01 00:00:00
abstract::Benign adrenal tumors cover a spectrum of lesions with distinct morphology and steroid secretion. Current classification is empirical. Beyond a few driver mutations, pathophysiology is not well understood. Here, a pangenomic characterization of benign adrenocortical tumors is proposed, aiming at unbiased classificatio...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-20-0128
更新日期:2021-01-01 00:00:00
abstract::The study aims to examine whether the annual variations in fasting plasma glucose (FPG) measurements, represented by the coefficient of variation (CV), predict cancer incidence and mortality in the subsequent years independent of traditional risk factors of type 2 diabetic patients. A computerized database of patients...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-12-0038
更新日期:2012-07-18 00:00:00
abstract::The clinical course of medullary thyroid carcinoma (MTC) associated with the MEN2A syndrome as well as of sporadic MTC shows considerable heterogeneity. The disease picture varies not only between the same RET proto-oncogene mutation carriers but also among sporadic MTC patients with no RET germinal mutations, which s...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-17-0452
更新日期:2018-04-01 00:00:00
abstract::The thyroid hormones T3 and T4 have emerged as pro-angiogenic hormones with important implications for cancer management. Endogenous circulating hormone levels may help stimulate cancer progression and limit the effectiveness of anticancer therapy, though clinical data remain inconclusive. The capacity of thyroid horm...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-19-0058
更新日期:2019-06-01 00:00:00
abstract::Cancers of the reproductive tract account for 12% of all malignancies in women. As previous studies have shown that oestrogen metabolites can cause apoptosis, we characterised the effect of oestrogen and oestrogen metabolites on non-cancerous and cancerous human endometrial cells. Herein, we demonstrate that 2-methoxy...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-07-0008
更新日期:2007-06-01 00:00:00
abstract::The purpose of this study is to investigate the role of carbonic anhydrase IX (CAIX) expression in predicting the response to epirubicin and disease-free survival (DFS) in breast cancer patients enrolled in a single institution trial of primary anthracycline and tamoxifen therapy. CAIX expression was assessed in 183 p...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/erc.1.01216
更新日期:2006-09-01 00:00:00
abstract::The destruction of proteins via the ubiquitin-proteasome system is a multi-step, complex process involving polyubiquitination of substrate proteins, followed by proteolytic degradation by the macromolecular 26S proteasome complex. Inhibitors of the proteasome promote the accumulation of proteins that are deleterious t...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-14-0005
更新日期:2015-02-01 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::Obesity is a high risk factor for breast cancer. This relationship could be marked by a specific methylome. The current work was aimed to explore the impact of obesity and menopausal status on variation in breast cancer methylomes. Data from Infinium 450K array-based methylomes of 64 breast tumors were coupled with in...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-16-0565
更新日期:2017-07-01 00:00:00
abstract::Tyrosine phosphorylation plays a critical role in growth regulation, and its aberrant regulation can be involved in carcinogenesis. The association of Shc (Src homolog and collagen homolog) adaptor protein family members in tyrosine phosphorylation signaling pathway is well recognized. Shc adaptor proteins transmit ac...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/ERC-08-0179
更新日期:2009-03-01 00:00:00
abstract::The aim of this systematic review is to study the features of cribriform-morular variant of papillary thyroid carcinoma (CMV-PTC) by analysing the 129 documented cases in the English literature. The disease occurred almost exclusively in women. The median age of presentation for CMV-PTC was 24 years. Slightly over hal...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-17-0014
更新日期:2017-04-01 00:00:00
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 breas...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/erc.1.01047
更新日期:2006-03-01 00:00:00