Abstract:
:The protein MENIN is the product of the multiple endocrine neoplasia type I (MEN1) gene. Altered MENIN expression is one of the few events that are clearly associated with foregut neuroendocrine tumours (NETs), classical oncogenes or tumour suppressors being not involved. One of the current challenges is to understand how alteration of MENIN expression contributes to the development of these tumours. We hypothesised that MENIN might regulate factors maintaining endocrine-differentiated functions. We chose the insulinoma model, a paradigmatic example of well-differentiated pancreatic NETs, to study whether MENIN interferes with the expression of v-MAF musculoaponeurotic fibrosarcoma oncogene homologue A (MAFA), a master glucose-dependent transcription factor in differentiated β-cells. Immunohistochemical analysis of a series of human insulinomas revealed a correlated decrease in both MENIN and MAFA. Decreased MAFA expression resulting from targeted Men1 ablation was also consistently observed in mouse insulinomas. In vitro analyses using insulinoma cell lines showed that MENIN regulated MAFA protein and mRNA levels, and bound to Mafa promoter sequences. MENIN knockdown concomitantly decreased mRNA expression of both Mafa and β-cell differentiation markers (Ins1/2, Gck, Slc2a2 and Pdx1) and, in parallel, increased the proliferation rate of tumours as measured by bromodeoxyuridine incorporation. Interestingly, MAFA knockdown alone also increased proliferation rate but did not affect the expression of candidate proliferation genes regulated by MENIN. Finally, MENIN variants with missense mutations detected in patients with MEN1 lost the WT MENIN properties to regulate MAFA. Together, our findings unveil a previously unsuspected MENIN/MAFA connection regarding control of the β-cell differentiation/proliferation balance, which could contribute to tumorigenesis.
journal_name
Endocr Relat Cancerjournal_title
Endocrine-related cancerauthors
Hamze Z,Vercherat C,Bernigaud-Lacheretz A,Bazzi W,Bonnavion R,Lu J,Calender A,Pouponnot C,Bertolino P,Roche C,Stein R,Scoazec JY,Zhang CX,Cordier-Bussat Mdoi
10.1530/ERC-13-0164subject
Has Abstractpub_date
2013-10-24 00:00:00pages
833-48issue
6eissn
1351-0088issn
1479-6821pii
20/6/833journal_volume
20pub_type
杂志文章abstract::We report the case of an 8-year-old child who presented with severe hyperinsulinaemic hypoglycaemia due to a pancreatic islet cell adenoma. In vivo, there was no beneficial response to the hyperglycaemia-inducing agent diazoxide and as a consequence the child underwent a subtotal pancreatectomy. In vitro studies of ad...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/erc.0.0090221
更新日期:2002-12-01 00:00:00
abstract::Transformation-related protein 63 (Trp63), the predominant member of the Trp53 family, contributes to epithelial differentiation and is expressed in breast neoplasia. Trp63 features two distinct promoters yielding specific mRNAs encoding two major TRP63 isoforms, a transactivating transcription factor and a dominant n...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-14-0032
更新日期:2014-05-06 00:00:00
abstract::Tumor-induced osteomalacia (TIO) is a rare and fascinating paraneoplastic syndrome in which patients present with bone pain, fractures, and muscle weakness. The cause is high blood levels of the recently identified phosphate and vitamin D-regulating hormone, fibroblast growth factor 23 (FGF23). In TIO, FGF23 is secret...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-11-0006
更新日期:2011-06-08 00:00:00
abstract::Tumor necrosis factor receptor-associated protein 1 (TRAP1) is a heat shock protein 90 (HSP90) molecular chaperone upregulated in several human malignancies and involved in protection from apoptosis and drug resistance, cell cycle progression, cell metabolism and quality control of specific client proteins. TRAP1 role...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-16-0063
更新日期:2016-09-01 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::Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disorder characterized in man by parathyroid, pancreatic, pituitary and adrenal tumours. The MEN1 gene encodes a 610-amino acid protein (menin) which is a tumour suppressor. To investigate the in vivo role of menin, we developed a mouse model, by dele...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-09-0082
更新日期:2009-12-01 00:00:00
abstract::Approximately 80% of human ovarian and endometrial cancers and 50% of breast cancers express GnRH and its receptor as part of an autocrine regulatory system. After binding of its ligand the tumor GnRH receptor couples to G-protein alphai and activates a variety of intracellular signaling mechanisms. (1) Through activa...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/erc.0.0100291
更新日期:2003-06-01 00:00:00
abstract::Papillary (PTC) and follicular thyroid carcinoma (FTC) are known as differentiated thyroid carcinoma (DTC). Nevertheless, according to the UICC/AJCC (TNM) classification PTC and FTC are frequently analyzed as one cancer. The aim of this study is to show differences in outcome and specific prognostic factors in an iodi...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/erc.0.0110131
更新日期:2004-03-01 00:00:00
abstract::Aromatase inhibitors (AIs) are one of the principal therapeutic approaches for estrogen receptor-positive (ER+) breast cancer in postmenopausal women. They block estrogen biosynthesis through aromatase inhibition, thus preventing tumour progression. Besides the therapeutic success of the third-generation AIs, acquired...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-17-0425
更新日期:2018-05-01 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::To analyze the genetic alterations of pheochromocytomas and evaluate the difference among malignant, extra-adrenal, and benign pheochromocytomas. Forty-three tumor samples were tested for genetic changes using multiplex ligation-dependent probe amplification. Among them, 39 samples were available for protein expressio...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/ERC-07-0188
更新日期:2008-03-01 00:00:00
abstract::The androgen receptor (AR) is well known to play a central role in the pathogenesis of prostate cancer (PCa). In several studies, AR was overexpressed in castration-resistant PCa (CRPC). However, the mechanism of AR overexpression in CRPC is not fully elucidated. Y-box binding protein-1 (YB-1) is a pleiotropic transcr...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-11-0017
更新日期:2011-07-11 00:00:00
abstract::Germline mutations in codon 918 of exon 16 of the RET gene (M918T) are classically associated with multiple endocrine neoplasia type 2B (MEN 2B) with highly aggressive medullary thyroid cancer (MTC), pheochromocytoma and a unique phenotype. The objectives of this study are to describe the rare M918V RET mutation disco...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-16-0141
更新日期:2016-12-01 00:00:00
abstract::Chitinase 3-like 1 (CHI3L1 or YKL40) is a secreted glycoprotein highly expressed in tumours from patients with advanced stage cancers, including prostate cancer (PCa). The exact function of YKL40 is poorly understood, but it has been shown to play an important role in promoting tumour angiogenesis and metastasis. The ...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-14-0267
更新日期:2014-10-01 00:00:00
abstract::Computed tomography (CT; unenhanced, followed by contrast-enhanced examinations) is the cornerstone of imaging of adrenal tumours. Attenuation values of <10 Hounsfield units on an unenhanced CT are practically diagnostic for adenomas. When lesions cannot be characterised adequately with CT, magnetic resonance imaging ...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/ERC-07-0045
更新日期:2007-09-01 00:00:00
abstract::Small-intestinal carcinoids (SIC) are the most common small-bowel malignancies. We sought to determine the risk of developing SIC before and after other primary malignancies (PM) and the prognosis of patients with SIC, with and without another PM. We used the Surveillance, Epidemiology, and End Results database to ide...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-11-0392
更新日期:2012-05-24 00:00:00
abstract::Obesity is becoming a global epidemic and is a risk factor for breast cancer. Environmental enrichment (EE), a model recapitulating an active lifestyle, leads to leanness, resistance to diet-induced obesity (DIO) and cancer. One mechanism is the activation of the hypothalamic-sympathoneural-adipocyte (HSA) axis. This ...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-19-0075
更新日期:2019-05-01 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::Na(+)/I(-) symporter (NIS)-mediated radioiodide uptake (RAIU) serves as the basis for targeted ablation of thyroid cancer remnants. However, many patients with thyroid cancer have reduced NIS expression/function and hence do not benefit from radioiodine therapy. microRNA (miR) has emerged as a promising therapeutic ta...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-14-0439
更新日期:2015-02-01 00:00:00
abstract::The leucine-rich repeats and immunoglobulin-like domains (LRIG) family of transmembrane proteins contains three vertebrate members (LRIG1, LRIG2 and LRIG3) and one member each in flies (Lambik) and worms (Sma-10). LRIGs have stepped into the spotlight as essential regulators of growth factor receptors, including recep...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-14-0179
更新日期:2014-01-01 00:00:00
abstract::Pancreatic neuroendocrine neoplasms (pNENs) are endocrine tumors arising in pancreas and is the most common neuroendocrine tumors. Mounting evidence indicates lncRNA H19 could be a determinant of tumor progression. However, the expression and mechanism of H19 and the relevant genes mediated by H19 in pNENs remain unde...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1530/ERC-18-0552
更新日期:2019-07-01 00:00:00
abstract::Combined clinical and laboratory investigations of multiple endocrine neoplasia type 1 (MEN1) have resulted in an increased understanding of this disorder which may be inherited as an autosomal dominant condition. Defining the features of each disease manifestation in MEN1 has improved patient management and treatment...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1677/erc.0.0060449
更新日期:1999-12-01 00:00:00
abstract::We studied the psychological performance and the quality of life in patients with differentiated thyroid carcinoma, either during treatment with chronic suppressive doses of levothyroxine, or during the withdrawal of levothyroxine needed to perform whole-body scanning with radioactive iodine, with those of appropriate...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/erc.0.0100601
更新日期:2003-12-01 00:00:00
abstract::Insulinomas are rare endocrine neoplasias that constitute the most frequent islet cell tumours. Somatostatin (SST) analogs are tentatively used to inhibit insulin secretion and control tumour growth in patients with local invasion or inoperative metastasis, but variable responses have been reported. Data regarding som...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/erc.1.00962
更新日期:2006-03-01 00:00:00
abstract::Distant metastases from thyroid cancer of follicular origin are uncommon. Treatment includes levothyroxine administration, focal treatment modalities with surgery, external radiation therapy and thermal ablation, and radioiodine in patients with uptake of 131I in their metastases. Two-thirds of distant metastases beco...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-17-0542
更新日期:2018-04-01 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 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::Cancer cells often display chromosomal instability (CIN), a defect that involves loss or rearrangement of the cell's genetic material - chromosomes - during cell division. This process results in the generation of aneuploidy, a deviation from the haploid number of chromosomes, and structural alterations of chromosomes...
journal_title:Endocrine-related cancer
pub_type: 杂志文章,评审
doi:10.1530/ERC-17-0187
更新日期:2017-09-01 00:00:00
abstract::Calcitonin (CT) is a sensitive marker for medullary thyroid carcinoma. Normalization of early postoperative CT level is a favorable prognostic factor. The aim of this study was to establish the prognostic value of CT-level kinetics by preoperative tumor stage and postoperative elimination rate. Blood serum from 22 med...
journal_title:Endocrine-related cancer
pub_type: 杂志文章
doi:10.1677/erc.0.0110357
更新日期:2004-06-01 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