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Chromogranin A

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https://www.readbyqxmd.com/read/29440231/-ex-vivo-activity-of-cytotoxic-drugs-and-targeted-agents-in-small-intestinal-nets
#1
Kosmas Daskalakis, Olov Norlen, Andreas Karakatsanis, Per Hellman, Rolf Larsson, Peter Nygren, Peter Stalberg
Small intestinal endocrine tumours (SI-NETs) are generally considered resistant to systemic treatment. To date, predictive markers for drug activity are lacking. Tumour samples from 27 patients with SI-NETs were analyzed ex vivo for sensitivity to a panel of cytotoxic drugs and targeted agents using a short-term total cell kill assay. Samples of renal cancer, colorectal cancer (CRC), ovarian cancer, and chronic lymphocytic leukemia (CLL) were included for comparison. For the SI-NET subset, drug sensitivity was analyzed in relation to clinico-pathological variables and pre-treatment biomarkers...
February 12, 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29438167/insm1-is-a-sensitive-and-specific-marker-of-neuroendocrine-differentiation-in-head-and-neck-tumors
#2
Lisa M Rooper, Justin A Bishop, William H Westra
The head and neck is the site of a wide and sometimes bewildering array of neuroendocrine (NE) tumors. Although recognition of NE differentiation may be necessary for appropriate tumor classification and treatment, traditional NE markers such as synaptophysin, chromogranin, and CD56 are not always sufficiently sensitive or specific to make this distinction. Insulinoma-associated protein 1 (INSM1) is a novel transcription factor that has recently demonstrated excellent sensitivity and specificity for NE differentiation in various anatomic sites, but has not yet been extensively evaluated in tumors of the head and neck...
February 12, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29438113/morphologic-and-immunohistochemical-appraisal-of-primary-gastric-carcinomas
#3
Gunes Guner, Aynur Isik, Erdem Karabulut, Gokhan Gedikoglu, Cenk Sokmensuer, Aytekin Akyol
Gastric carcinoma management requires adjustments answering their genetic and morphologic heterogeneity. We aim to assess the expression and significance of a myriad of biomarkers (p53, MLH1, MSH2, PMS2, MSH6, Epstein-Barr encoding region-RNA, c-erbB2, E-cadherin, CEA, chromogranin, Ki-67, CDX2, presenilin-1, cathepsin E, MUC5AC, cyclin-dependent kinase 1) in 117 gastric carcinomas, which we have morphologically subclassified with a simple algorithm. Immunohistochemical stains were applied to 3 tissue microarrays of primary gastric carcinomas (n=117) obtained from resection specimens of untreated patients...
February 12, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29432123/catestatin-inhibits-obesity-induced-macrophage-infiltration-and-inflammation-in-the-liver-and-suppresses-hepatic-glucose-production-leading-to-improved-insulin-sensitivity
#4
Wei Ying, Sumana Mahata, Gautam K Bandyopadhyay, Zhenqi Zhou, Joshua Wollam, Jessica Vu, Rafael Mayoral, Nai-Wen Chi, Nicholas J G Webster, Angelo Corti, Sushil K Mahata
The activation of Kupffer cells (KCs) and monocyte (Mc)-derived recruited macrophages (McMΦs) in the liver contributes to obesity-induced insulin resistance and type 2 diabetes. Diet-induced obese (DIO) mice treated with Chromogranin A (CgA) peptide catestatin (CST) showed several positive results. These included decreased hepatic/plasma lipids and plasma insulin, diminished expression of gluconeogenic genes, attenuated expression of pro-inflammatory genes, increased expression of anti-inflammatory genes in McMΦs, and inhibition of the infiltration of McMΦs resulting in improvement of insulin sensitivity...
February 6, 2018: Diabetes
https://www.readbyqxmd.com/read/29422311/merkel-cell-carcinoma-in-a-steer
#5
A P P Teh, U Z Izzati, N V Diep, T Hirai, R Yamaguchi
Merkel cell carcinoma is a rare and aggressive cutaneous neuroendocrine tumour reported only in man, dogs and cats. A 20-month-old Japanese black fattening steer was presented with necrotic protruding skin masses over the left thoracic area and a 20 × 25 cm subcutaneous mass in the left abdominal area. Microscopical evaluation of the masses revealed cords of small to medium-sized round tumour cells with marked anisocytosis and anisokaryosis and clear and vacuolated cytoplasm, which were separated by a delicate fibrovascular stroma and arranged in a trabecular and nested pattern...
January 2018: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29416634/loss-of-epithelium-specific-gpx2-results-in-aberrant-cell-fate-decisions-during-intestinal-differentiation
#6
Claudia Lennicke, Jette Rahn, Claudia Wickenhauser, Rudolf Lichtenfels, Andreas S Müller, Ludger A Wessjohann, Anna P Kipp, Barbara Seliger
The selenoprotein glutathione peroxidase 2 (GPx2) is expressed in the epithelium of the gastrointestinal tract, where it is thought to be involved in maintaining mucosal homeostasis. To gain novel insights into the role of GPx2, proteomic profiles of colonic tissues either derived from wild type (WT) or GPx2 knockout (KO) mice, maintained under selenium (Se) deficiency or adequate Se supplementation conditions were established and analyzed. Amongst the panel of differentially expressed proteins, the calcium-activated chloride channel regulator 1 (CLCA1) was significantly down-regulated in GPx2 KO versus WT mice regardless of the given Se status...
January 2, 2018: Oncotarget
https://www.readbyqxmd.com/read/29398875/neuroendocrine-carcinoma-of-the-gastric-stump-a-case-report-and-literature-review
#7
Fu-Hai Ma, Li-Yan Xue, Ying-Tai Chen, Yi-Bin Xie, Yu-Xin Zhong, Quan Xu, Yan-Tao Tian
We herein report a case of neuroendocrine carcinoma of the gastric stump found 47 years after Billroth II gastric resection for a benign gastric ulcer. A 74-year-old man was referred to another hospital with melena. Endoscopic examination revealed a localized ulcerative lesion at the gastrojejunal anastomosis. The diagnosis by endoscopic biopsy was neuroendocrine carcinoma. A total gastrectomy of the remnant stomach with D2 lymphadenectomy was performed at our hospital. The lesion invaded the subserosa, and metastasis was found in two of nine the lymph nodes retrieved...
January 28, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29394752/-curative-resection-for-metastatic-lower-rectal-tumor-from-ovarian-cancer-report-of-a-case
#8
Shu Okamura, Hozumi Noda, Kazuhito Ohishi, Tomohiro Kitahara, Kohei Murata, Takayuki Minoji, Rie Hamano, Tetsu Yanagisawa, Nariaki Fukuchi, Chikara Ebisui, Hideoki Yokouchi, Takamichi Nishizaki, Masakatsu Kinuta
We here report the case of a 56-year-old female patient who underwent curative resection for right ovarian cancer with intraperitoneal dissemination and liver metastases. She received following adjuvant chemotherapy, and had been visited hospital for regular follow-up since then. One and half a year after surgery, blood examination showed increasing value of CA125. Contrast-enhanced CT scan revealed a tumor whose long diameter was 5 cm at front side of lower rectum. Following MRI and PET-CT examinations indicated the pelvic tumor as recurrence of ovarian cancer, so that laparotomy was carried out...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29394734/-a-case-report-of-neuroendocrine-carcinoma-of-the-esophagus-treated-with-multidisciplinary-therapy
#9
Takuji Sakuratani, Yoshihiro Tanaka, Shinya Hirata, Taro Sugiyama, Toshiyuki Tanahashi, Satoshi Matsui, Hisashi Imai, Nobuhisa Matsuhashi, Takao Takahashi, Kazuya Yamaguchi, Kazuhiro Yoshida
A 72-year-old man was referred to our department because of esophageal tumor. Immunohistochemical findings were CD56-positive, synaptophysin-positive, chromogranin A-positive, Ki-67(labeling index)≥90%. The diagnosis was esophageal neuroendocrine carcinoma, categorized as cT4b(106recR-main bronchus), cN1(106recR), cM0, cStage III C. We had initiated irinotecan plus cisplatin(IP)as neoadjuvant chemotherapy(NAC). Biopsy specimens of primary lesion after 1 course chemotherapy showed a change to squamous cell carcinoma(SCC)...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29394589/-a-case-of-esophagogastric-junction-adenocarcinoma-with-neuroendocrine-differentiation
#10
Yuto Kitano, Jun Kinoshita, Katsunobu Oyama, Koichi Okamoto, Seisho Sakai, Isamu Makino, Keishi Nakamura, Hironori Hayashi, Masafumi Inokuchi, Tomoharu Miyashita, Hidehiro Tajima, Hiroyuki Takamura, Itasu Ninomiya, Sachio Fushida, Tetsuo Ohta
Gastric cancer rarely contains neuroendocrine component. This mixed tumor is defined as neuroendocrine carcinoma (NEC), mixed adenoneuroendocrine carcinoma(MANEC)and so on according to the WHO classification. We report a patient with esophagogastric junction cancer with neuroendocrine differentiation(NED). The patient was 54-year-old man who diagnosed of esophagogastric junction cancer at the medical examination. Upper gastrointestinal endoscopy revealed a type 3 tumor at esophagogastric junction, and the pathological findings were poorly differentiated adenocarcinoma with focal positivity of chromogranin A...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29391305/utility-of-a-laboratory-score-in-the-prediction-of-altered-autonomic-nervous-system-function-in-autoimmune-gastritis
#11
Çağdaş Kalkan, İrfan Soykan
BACKGROUND/AIMS: Autoimmune gastritis patients may have autonomic nerve dysfunction. The goal of our study was to explore the predictive value of two scoring systems in the differentiation of altered autonomic nerve function in autoimmune gastritis patients. MATERIALS AND METHODS: Seventy-five patients with autoimmune gastritis were evaluated by using cardiovascular reflex tests in order to delineate autonomic nerve function. Data were analyzed by using two laboratory-based scoring systems: "global score" (hemoglobin, mean corpuscular volume, gastrin, vitamin B12, and chromogranin A) and "simple score" (hemoglobin, mean corpuscular volume, gastrin) in order to discriminate deranged and normal autonomic nerve function...
January 2018: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/29390385/esophageal-neuroendocrine-tumor-with-initial-presentation-as-painless-forehead-and-neck-masses-a-case-report
#12
Yen-Po Chin, Wei-Fu Lai, Meng-Ting Chiang, Shih-Chieh Chang
RATIONALE: Esophageal neuroendocrine tumors (NETs) are a rare type of esophageal tumor which are usually positive for chromogranin A, synaptophysin, and CD56 in tumor immunohistochemical staining. The most common symptoms of esophageal NETs are gastrointestinal symptoms such as dysphagia and/or abdominal discomfort. While esophageal NETs have the potential for distant metastasis, there have only been a few reports of brain metastasis originating from esophageal NET. PATIENT CONCERNS: We report the case of a 60-year-old Taiwanese female who initially presented with a 1 month history of painless forehead and bilateral neck masses...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29389978/dendritic-cell-immunotherapy-followed-by-cart-interruption-during-hiv-1-infection-induces-plasma-protein-markers-of-cellular-immunity-and-neutrophil-recruitment
#13
Henk-Jan van den Ham, Jason D Cooper, Jakub Tomasik, Sabine Bahn, Joeri L Aerts, Albert D M E Osterhaus, Rob A Gruters, Arno C Andeweg
OBJECTIVES: To characterize the host response to dendritic cell-based immunotherapy and subsequent combined antiretroviral therapy (cART) interruption in HIV-1-infected individuals at the plasma protein level. DESIGN: An autologous dendritic cell (DC) therapeutic vaccine was administered to HIV-infected individuals, stable on cART. The effect of vaccination was evaluated at the plasma protein level during the period preceding cART interruption, during analytical therapy interruption and at viral reactivation...
2018: PloS One
https://www.readbyqxmd.com/read/29389743/mice-overexpressing-chromogranin-a-display-hypergranulogenic-adrenal-glands-with-attenuated-atp-levels-contributing-to-the-hypertensive-phenotype
#14
Saiful A Mir, Ying Li, Jacob D Story, Soma Bal, Linda Awdishu, Anneke A Street, Ravindra L Mehta, Prabhleen Singh, Sucheta M Vaingankar
OBJECTIVE: Elevated circulating chromogranin A (CHGA) is observed in human hypertension. CHGA is critical for granulogenesis and exocytosis of catecholamine stores from secretory large dense core vesicles (LDCV). This study aims to understand the morphological, molecular and phenotypic changes because of excess CHGA and the mechanistic link eventuating in hyper-adrenergic hypertension. METHODS: Blood pressure and heart rate was monitored in mouse models expressing normal and elevated level of CHGA by telemetry...
January 31, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29386066/carcinoid-heart-disease-revealed-by-cyanosis-with-both-right-and-left-valvular-involvement-a-case-report
#15
Khadija Khay, Salim Arous, Tarik Bentaoune, Abdenasser Drighil, Rachida Habbal
BACKGROUND: Carcinoid heart disease is a frequent complication of carcinoid syndrome. It is related to the release by the carcinoid tumor and/or its metastases of bioactive substances such as serotonin. It is characterized by right-sided valvular involvement and can lead to right-sided heart failure. It is a prognostic factor of carcinoid syndrome. CASE PRESENTATION: We report the case of a 53-year-old African woman with an endocrine tumor of her small intestine complicated by carcinoid heart disease, revealed by right-sided heart failure...
January 31, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29381978/cholecystectomy-with-gallbladder-bed-cautery-might-be-sufficient-for-t1bn0m0-neuroendocrine-carcinoma-of-gallbladders-cases-report-and-literature-review
#16
Wei Liu, Weijie Chen, Xiaodong He, Qiang Qu, Tao Hong, Binglu Li
INTRODUCTION: Neuroendocrine carcinoma was a rare kind tumor in gallbladders. So far, there is no consensus of treatment of the gallbladder neuroendocrine carcinoma. CASE PRESENTATION: Three patients, 1 male and 2 females, were admitted in our hospital because of right upper quadrant pain. No one complained fever, jaundice, weight loss, or carcinoid syndrome-related symptoms such as diarrhea, flushing, edema, and wheezing. The MRI detected the broad base of gallbladder tumors...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29374682/neuroendocrine-neoplasms-of-the-appendix-a-review-of-the-literature
#17
REVIEW
Dimitrios Moris, Diamantis I Tsilimigras, Stylianos Vagios, Ioannis Ntanasis-Stathopoulos, Georgia-Sofia Karachaliou, Alexandros Papalampros, Andreas Alexandrou, Dan G Blazer, Evangelos Felekouras
Appendiceal neuroendocrine neoplasms (ANENs) comprise rare tumors of the appendix, mainly affecting young populations and characterized by a rather favorable prognosis. The aim of this review was to summarize the current knowledge on these neoplasms, focusing on the management and follow-up of such patients, which still remain under debate. ANENs account for 0.16-2.3% of appendectomies and are usually diagnosed incidentally. The histopathological diagnosis includes the immunohistochemical profile of the tumor in regard to synaptophysin and chromogranin A, as well as the Ki-67 index...
February 2018: Anticancer Research
https://www.readbyqxmd.com/read/29370833/synaptic-proteins-in-csf-as-potential-novel-biomarkers-for-prognosis-in-prodromal-alzheimer-s-disease
#18
Flora H Duits, Gunnar Brinkmalm, Charlotte E Teunissen, Ann Brinkmalm, Philip Scheltens, Wiesje M Van der Flier, Henrik Zetterberg, Kaj Blennow
BACKGROUND: We investigated whether a panel of 12 potential novel biomarkers consisting of proteins involved in synapse functioning and immunity would be able to distinguish patients with Alzheimer's disease (AD) and patients with mild cognitive impairment (MCI) from control subjects. METHODS: We included 40 control subjects, 40 subjects with MCI, and 40 subjects with AD from the Amsterdam Dementia Cohort who were matched for age and sex (age 65 ± 5 years, 19 [48%] women)...
January 15, 2018: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/29361988/black-tea-aroma-inhibited-increase-of-salivary-chromogranin-a-after-arithmetic-tasks
#19
Ai Yoto, Natsuki Fukui, Chisa Kaneda, Shoko Torita, Keiichi Goto, Fumio Nanjo, Hidehiko Yokogoshi
BACKGROUND: Growing attention has been paid to the effects of food flavor components on alleviating negative brain functions caused by stressful lifestyles. In this study, we investigated the alleviating effect of two kinds of black tea aromas on physical and psychological stress induced by the Uchida-Kraepelin test, based on salivary chromogranin-A (CgA) levels as a stress marker and subjective evaluations (Profile of Mood States). RESULTS: Compared with the water exposure control, inhaling black tea aroma (Darjeeling and Assam in this study) induced lower salivary CgA concentration levels after 30 min of mental stress load tasks...
January 24, 2018: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/29361984/changes-in-biodistribution-on-68ga-dota-octreotate-pet-ct-after-long-acting-somatostatin-analogue-therapy-in-neuroendocrine-tumour-patients-may-result-in-pseudoprogression
#20
Martin H Cherk, Grace Kong, Rodney J Hicks, Michael S Hofman
BACKGROUND: To evaluate the effects of long-acting somatostatin analogue (SSA) therapy on 68Ga-DOTA-octreotate (GaTate) uptake at physiological and metastatic sites in neuroendocrine tumour (NET) patients. METHODS: Twenty-one patients who underwent GaTate PET/CT before and after commencement of SSA therapy were reviewed. Maximum standardized uptake values (SUVmax) were measured in normal organs. Changes in uptake of 49 metastatic lesions in 12 patients with stable disease were also compared...
January 24, 2018: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
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