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Chromogranin A

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https://www.readbyqxmd.com/read/29221341/atypical-carcinoid-localized-at-the-bronchus-accompanied-by-diffuse-idiopathic-pulmonary-neuroendocrine-cell-hyperplasia-in-the-distal-lung-a-rare-case-report
#1
Kyoshiro Takegahara, Akira Sato, Takayuki Ibi, Tatsuya Inoue, Jitsuo Usuda
Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) is hyperplasia of noninvasive neuroendocrine cells originating from Kultchitsky cells. This is a rare pathological condition, suspected to be a precursor lesion of carcinoid, together with tumorlet. In the WHO histological classification (4th edition) revised in 2015, DIPNECH was added to the category that includes neuroendocrine tumors. Our patient was a 77-year-old woman who initially visited another doctor because of coughing. Chest CT revealed a mass occluding the right intermediate bronchial trunk, and bronchial carcinoid was suspected from biopsy findings, leading to referral of this patient to our department...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29210711/an-autopsy-case-of-sudden-death-in-neurofibromatosis-type-1-with-pheochromocytoma-and-myocarditis
#2
Masataka Takamiya, Hisae Niitsu, Kiyoshi Saigusa
An autopsy case of sudden death in a 33-year-old man with neurofibromatosis type 1 (von Recklinghausen disease), pheochromocytoma, and myocarditis is reported. The decedent was found in his bedroom in cardiopulmonary arrest. Polypoid, elastic dermal papules on the neck, chest, abdomen, and back, and flat dark-brown macules on the chest and abdomen were observed. Flat, ovoid, dark-brown freckles were present in both axillae. Examination of the right adrenal gland revealed a tumor measuring 5 cm × 5 cm × 3 cm...
November 28, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29207856/diagnosis-of-pancreatic-neuroendocrine-tumors
#3
REVIEW
Dong Wook Lee, Michelle Kang Kim, Ho Gak Kim
Pancreatic neuroendocrine tumors (PNETs) are relatively rare; however, the incidence has increased over the last few decades. They are classified as functional or non-functional tumors according to the presence of associated clinical symptoms. The majority are non-functional tumors. For classification and staging, the World Health Organization 2010 classification system is the most commonly accepted. Chromogranin A is the most sensitive marker but has insufficient specificity. In general, PNETs are hypervascular tumors, and multiphasic contrast-enhanced computed tomography is considered the first choice for imaging study...
November 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/29201449/molecular-strategies-in-the-management-of-bronchopulmonary-and-thymic-neuroendocrine-neoplasms
#4
REVIEW
Irvin M Modlin, Mark Kidd, Pier-Luigi Filosso, Matteo Roffinella, Anna Lewczuk, Jaroslaw Cwikla, Lisa Bodei, Agnieska Kolasinska-Cwikla, Kyung-Min Chung, Margot E Tesselaar, Ignat A Drozdov
Thoracic NETs [bronchopulmonary NETs (BPNETs) and thymic NETs (TNET)] share a common anatomic primary location, likely a common cell of origin, the "Kulchitsky cell" and presumably, a common etiopathogenesis. Although they are similarly grouped into well-differentiated [typical carcinoids (TC) and atypical carcinoids (AC)] and poorly differentiated neoplasms and both express somatostatin receptors, they exhibit a wide variation in clinical behavior. TNETs are more aggressive, are frequently metastatic, and have a lower 5-year survival rate (~50% vs...
November 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29198128/proprotein-convertase-1-mediated-proneuropeptide-proteolytic-processing-in-ischemic-neuron-injury
#5
S S Tang, Z Y Liang, L R Guo, J H Zhang, D Zhou
BACKGROUND: Pro-protein processing mechanism plays an important role in neuron injury. OBJECTIVE: To study the protein convertase 1 (PC1) mediated processing mechanism, the ischemic cellular or tissue proPC1/PC1 or proCgA/CgA (pro-chromogranin A) was analyzed. METHODS: NS20Y differentiated cells were stressed by 0-6 h of oxygen and glucose deprivation (OGD) in glucose-free DMEM and an anaerobic jar environment. Ischemic C57BL/J mouse model was established by performing 60-min of middle cerebral artery occlusion (MCAO) operation and subsequent 4 or 24-h reperfusion...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29195227/catestatin-vasostatin-cortisol-and-visual-analog-scale-scoring-for-stress-assessment-in-healthy-dogs
#6
T Srithunyarat, R Hagman, O V Höglund, M Stridsberg, J Hanson, A S Lagerstedt, A Pettersson
The neuroendocrine glycoprotein chromogranin A is a useful biomarker for stress in humans. Chromogranin A epitopes catestatin and vasostatin can be measured in dogs using radioimmunoassays. The objective of this study was to evaluate catestatin and vasostatin as canine stress biomarkers in a clinical setting. Blood and saliva were collected from 33 healthy dogs that were familiar with sampling procedures and the animal hospital environment (control group) and 30 healthy dogs that were unacquainted (stress group)...
November 22, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29191973/blocking-the-feedback-loop-between-neuroendocrine-differentiation-and-macrophages-improves-the-therapeutic-effects-of-enzalutamide-mdv3100-on-prostate-cancer
#7
Chao Wang, Guang Peng, Hai Huang, Fei Liu, De-Pei Kong, Ke-Qin Dong, Li-He Dai, Zhe Zhou, Kai-Jian Wang, Jun Yang, Yan-Qiong Cheng, Xu Gao, Min Qu, Hongru Wang, Feng Zhu, Qin-Qin Tian, Dan Liu, Li Cao, Xingang Cui, Chuanliang Xu, Dan-Feng Xu, Yinghao Sun
PURPOSE: Androgen-deprivation therapy (ADT), including enzalutamide, induces resistance in prostate cancer (PCa); ADT resistance is associated with neuroendocrine differentiation (NED) and tumor-associated macrophages (TAMs). This study aimed to investigate the association between enzalutamide-induced NED and TAMs and its mechanism. EXPERIMENTAL DESIGN: The association between enzalutamide-induced NED and TAMs was investigated by immunohistochemistry using PCa tissues, enzalutamide-resistant mouse xenografts and a co-culture system...
November 30, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29191920/combined-test-of-serum-cga-and-nse-improved-the-power-of-prognosis-prediciton-of-nf-pnets
#8
Yang Lv, Xu Han, Chunyan Zhang, Yuan Fang, Ning Pu, Yuan Ji, Dansong Wang, Xuefeng Xu, Wenhui Lou
PURPOSE: Chromogranin-A (CgA) and neuron-specific enolase (NSE) are important markers for neuroendocrine tumors, however, the clinical value of combining these markers has not been well studied. In this study we investigated the utility of each marker individually and in combination for patients with nonfunctional pancreatic neuroendocrine tumors (NF-pNETs). PATIENTS AND METHODS: In this study, NF-pNETs patients and controls were recruited from December 2011 to March 2016; 784 serum samples from peripheral vein were collected...
November 30, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29190137/high-risk-gastric-pathology-and-prevalent-autoimmune-diseases-in-patients-with-pernicious-anemia
#9
Jing W Hughes, Brian D Muegge, Garry S Tobin, Marina Litvin, Lulu Sun, Jose B Saenz, C Prakash Gyawali, Janet B McGill
OBJECTIVE: Pernicious anemia (PA) develops from atrophic gastritis due to autoimmune destruction of parietal cells and results in achlorhydria, vitamin B12 and iron deficiencies, anemia, neurologic deficits, and premalignant and malignant stomach lesions. We report the presentation, diagnosis and gastric complications of PA in patients from an endocrinology practice. METHODS: Thirty-four patients (31 female, 3 male) with PA who underwent esophagogastroduodenoscopy (EGD) or gastrectomy were identified...
November 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29180096/differentiating-merkel-cell-carcinoma-of-lymph-nodes-without-a-detectable-primary-skin-tumor-from-other-metastatic-neuroendocrine-carcinomas-the-electhip-criteria
#10
Thibault Kervarrec, Julia Zaragoza, Pauline Gaboriaud, Amélie Le Gouge, Agnès Beby-Defaux, Yannick Le Corre, Eva Hainaut-Wierzbiecka, Francois Aubin, Guido Bens, Patrick Michenet, Hervé Maillard, Antoine Touzé, Mahtab Samimi, Serge Guyétant
BACKGROUND: Merkel cell carcinoma MCC) can present as a cutaneous tumor or a lymph node without primary tumor MCCWP). MCCWP can be misinterpreted on histologic examination as lymph node metastasis LNM) from other neuroendocrine carcinomas LNMNECs). However, this distinction is crucial for therapeutic management. OBJECTIVE: To determine the discriminative criteria for differential diagnosis between MCCWP, LNM from cutaneous MCC and LNMNECs. METHODS: Clinical, morphologic, immunohistochemical data expression of cytokeratin AE1/AE3, 7, 19, 20; chromogranin A, thyroid transcription factor-1 [TTF-1]) and presence of Merkel Cell Polyomavirus MCPyV) immunohistochemistry and PCR) were compared in patients with MCCWP n=17), LNM from cutaneous MCC n=11) and LNMNEC n=20: lung, n=8; thyroid, n=7; digestive tract, n=3; other, n=2)...
November 24, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29178418/dense-core-vesicle-biogenesis-and-exocytosis-in-neurons-lacking-chromogranins-a-and-b
#11
Natalia Dominguez, Jan Rt van Weering, Ricardo Borges, Ruud F Toonen, Matthijs Verhage
Chromogranin A and B (Cgs) are considered to be master regulators of cargo sorting for the regulated secretory pathway (RSP) and Dense-Core Vesicle (DCV) biogenesis. To test this, we analyzed the release of NPY-pHluorin, a live RSP reporter, and the distribution, number and appearance of DCVs, in mouse hippocampal neurons lacking expression of CHGA and CHGB genes. qRT-PCR analysis showed that expression of other granin family members was not significantly altered in CgA/B-/- neurons. As synaptic maturation of developing neurons depends on secretion of trophic factors in the RSP, we first analyzed neuronal development in standardized neuronal cultures...
November 27, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29176078/one-stage-surgery-for-synchronous-liver-metastasis-from-a-neuroendocrine-tumor-of-the-colon-a-case-report
#12
Nicola Tartaglia, Alessandra Di Lascia, Pasquale Cianci, Alberto Fersini, Francesca Sanguedolce, Roberta Iadarola, Sabino Capuzzolo, Vincenzo Neri, Antonio Ambrosi
INTRODUCTION: Neuroendocrine tumors (NETs) are a heterogeneous group of tumors. NET of colon represent less than 1% of colonic tumors. Synchronous liver metastases, present in 75-80%, are considered significant adverse prognostic indicators. Liver is the second commonest site for metastasis in patients with colorectal neuroendocrine tumors. Available treatment options include surgical resection, chemotherapy, biotherapy. Surgery is the gold standard for curative therapy and it is strictly related to the localization, the grade of tumor, and the stage of disease...
November 20, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/29167990/histologic-analysis-has-a-prognostical-value-in-colorectal-biopsies-assessed-for-suspicion-of-graft-versus-host-disease
#13
Fanny Sauvestre, Geneviève Belleannée, Claire Bréal, Catherine Mohr, Harold IpKan Fong, Sébastien Cossin, Reza Tabrizi, Noël Milpied, Stéphane Vigouroux, Jean-François Goussot, Marion Marty
Gastrointestinal (GI) graft-versus-host-disease (GVHD) is a common and severe complication of allogeneic hematopoietic stem cell transplantation, but clinical and histological features are unspecific. The aim of this study was to correlate the histological GI GVHD grade with the clinical outcomes. In a retrospective study of 112 patients with clinically suspected GI GVHD, colonic biopsies were reviewed by three pathologists without knowledge of the corresponding clinical data and classified in four scores, according to the NIH Consensus Project recommendations: no GVHD, possible, probable, and unequivocal GVHD...
November 22, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29155309/prognostic-utility-of-total-68ga-dotatate-avid-tumor-volume-in-patients-with-neuroendocrine-tumors
#14
Amit Tirosh, Georgios Z Papadakis, Corina Millo, Dima Hammoud, Samira M Sadowski, Peter Herscovitch, Karel Pacak, Stephen J Marx, Lily Yang, Pavel Nockel, Jasmine Shell, Patience Green, Xavier M Keutgen, Dhaval Patel, Naris Nilubol, Electron Kebebew
BACKGROUND & AIMS: Survival times vary among patients with neuroendocrine tumors (NETs)-even among those with the same site, stage, and grade of primary tumor. This makes it difficult to select treatment for patients with unresectable NETs, because some patients can survive decades without treatment. 68Gallium-DOTATATE positron emission tomography with computed tomography (68Ga-DOTATATE PET/CT) is a sensitive imaging technique for detection of NETs. We investigated the prognostic accuracy of 68Ga-DOTATATE PET/CT analysis of tumor volume in patients with NETs...
November 16, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29145864/intraductal-tubulopapillary-neoplasm-itpn-of-the-pancreas-associated-with-an-invasive-component-a-case-report-with-review-of-the-literature
#15
Stefanie Kuscher, Hartmut Steinle, Afschin Soleiman, Dietmar Öfner, Stefan Schneeberger, Georg Oberhuber
BACKGROUND: Intraductal tubulopapillary neoplasm (ITPN) depicts a distinct entity in the subgroup of premalignant epithelial tumors of the pancreas. Although the histomorphological and immunophenotypical characterization of ITPN has been described by several authors in terms of report of case series in the past, the rarity of that tumor subtype and similarity to other entities still makes identification of ITPN a challenge for radiologists and pathologists. To date, little is known about tubulopapillary carcinoma that can evolve from ITPN...
November 16, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29145657/the-utility-of-blood-neuroendocrine-gene-transcript-measurement-in-the-diagnosis-of-bronchopulmonary-neuroendocrine-tumours-and-as-a-tool-to-evaluate-surgical-resection-and-disease-progression
#16
Pier Luigi Filosso, Mark Kidd, Matteo Roffinella, Anna Lewczuk, Kyung-Min Chung, Agnieszka Kolasinska-Cwikla, Jaroslaw Cwikla, Anna Lowczak, Anna Doboszynska, Anna Malczewska, Maria Catalano, Valentina Zunino, Monica Boita, Emanuela Arvat, Riccardo Cristofori, Francesco Guerrera, Alberto Oliaro, Margot Tesselaar, Wieneke Buikhuisen, Beata Kos-Kudla, Mauro Papotti, Lisa Bodei, Ignat Drozdov, Irvin Modlin
OBJECTIVES: The management of bronchopulmonary neuroendocrine tumours (BPNETs) is difficult, since imaging, histology and biomarkers have a limited value in diagnosis, predicting outcome and defining therapeutic efficacy. We evaluated a NET multigene blood test (NETest) to diagnose BPNETs, assess disease status and evaluate surgical resection. METHODS: (i) Diagnostic cohort: BP carcinoids (n = 118)-typical carcinoid, n = 67 and atypical carcinoid, n = 51; other lung NEN (large-cell neuroendocrine carcinoma and small-cell lung carcinoma, n = 13); adenocarcinoma, (n = 26); squamous cell carcinoma (n = 23); controls (n = 90) and chronic obstructive pulmonary disease (n = 18)...
November 13, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29136407/phospholipase-d-inhibitors-reduce-human-prostate-cancer-cell-proliferation-and-colony-formation
#17
Amanda R Noble, Norman J Maitland, Daniel M Berney, Martin G Rumsby
BACKGROUND: Phospholipases D1 and D2 (PLD1/2) hydrolyse cell membrane glycerophospholipids to generate phosphatidic acid, a signalling lipid, which regulates cell growth and cancer progression through effects on mTOR and PKB/Akt. PLD expression and/or activity is raised in breast, colorectal, gastric, kidney and thyroid carcinomas but its role in prostate cancer (PCa), the major cancer of men in the western world, is unclear. METHODS: PLD1 protein expression in cultured PNT2C2, PNT1A, P4E6, LNCaP, PC3, PC3M, VCaP, 22RV1 cell lines and patient-derived PCa cells was analysed by western blotting...
November 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29133142/dedifferentiated-endometrial-carcinomas-with-neuroendocrine-features-a-clinicopathologic-immunohistochemical-and-molecular-genetic-study
#18
Iñigo Espinosa, Antonio De Leo, Emanuela D'Angelo, Juan M Rosa-Rosa, Marina Corominas, Alan Gonzalez, José Palacios, Jaime Prat
Undifferentiated endometrial carcinoma is an aggressive type of uterine cancer which is occasionally associated with a low-grade endometrioid carcinoma component. This combination is referred to as "dedifferentiated endometrioid endometrial carcinoma." Neuroendocrine expression may occur in undifferentiated endometrial carcinoma but its significance in dedifferentiated endometrial carcinomas is unknown. To gain insight into the pathogenesis of these tumors we have analyzed the immunophenotype (ARID1A, MLH1, PMS2, MSH2, MSH6, p53, b-catenin, SMARCB1, synaptophysin, chromogranin A, and CD56) and mutational status (PTEN, KRAS, PIK3CA, TP53 and POLE) of 4 dedifferentiated endometrial carcinomas with strong and diffuse neuroendocrine expression...
November 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/29132068/secretoneurin-and-pe-11-immunoreactivity-in-the-human-dental-pulp
#19
René Steiner, Reiner Fischer-Colbrie, Athanasia Bletsa, Johannes Laimer, Josef Troger
OBJECTIVE: To explore whether there are differences in the concentration of the secretogranin II-derived peptide secretoneurin and the chromogranin B-derived peptide PE-11 between the healthy and inflamed human dental pulps. Furthermore, colocalization studies with calcitonin gene-related peptide were performed to confirm the sensory origin of the peptidergic nerves in the dental pulp. DESIGN: The concentrations of secretoneurin and PE-11 were determined by highly sensitive radioimmunoassays in extracts of dental pulps, the molecular form of secretoneurin immunoreactivities by RP-HPLC with subsequent radioimmunoassay and colocalization studies with calcitonin gene-related peptide were performed by double immunofluorescence...
November 9, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29128115/chronic-use-of-proton-pump-inhibitors-adverse-events-and-potential-biological-mechanisms-a-translational-analysis
#20
Farid Kheloufi, Diane Frankel, Elise Kaspi, Marion Lepelley, Michel Mallaret, Quentin Boucherie, Patrice Roll, Joelle Micallef
Proton pump inhibitors (PPIs) are among the most frequently prescribed drugs. Even if PPI are usually considered as safe, there is a growing concern for a range of adverse effects of chronic PPI therapy often in the absence of appropriate indications. We propose, after a summary of renal, cardiovascular and neurological complications (dementia, chronic kidney disease, myocardial infarction and stroke), an integrative overview of the potential biological mechanisms involved. Eleven positive pharmacoepidemiological studies, mainly based on health insurance database linkage to hospital database, reported an increased risk of complications associated to PPI use and often a graded association suggesting also a possible dose-response relationship...
October 14, 2017: Thérapie
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