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https://www.readbyqxmd.com/read/28196083/cacybp-sip-promotes-the-proliferation-of-colon-cancer-cells
#1
Huihong Zhai, Yongquan Shi, Xiong Chen, Jun Wang, Yuanyuan Lu, Faming Zhang, Zhengxiong Liu, Ting Lei, Daiming Fan
CacyBP/SIP is a component of the ubiquitin pathway and is overexpressed in several transformed tumor tissues, including colon cancer, which is one of the most common cancers worldwide. It is unknown whether CacyBP/SIP promotes the proliferation of colon cancer cells. This study examined the expression level, subcellular localization, and binding activity of CacyBP/SIP in human colon cancer cells in the presence and absence of the hormone gastrin. We found that CacyBP/SIP was expressed in a high percentage of colon cancer cells, but not in normal colonic surface epithelium...
2017: PloS One
https://www.readbyqxmd.com/read/28186846/in-vitro-mouse-and-human-serum-stability-of-a-heterobivalent-dual-target-probe-that-has-strong-affinity-to-gastrin-releasing-peptide-and-neuropeptide-y1-receptors-on-tumor-cells
#2
Arijit Ghosh, Natarajan Raju, Michael Tweedle, Krishan Kumar
Receptor-targeting radiolabeled molecular probes with high affinity and specificity are useful in studying and monitoring biological processes and responses. Dual- or multiple-targeting probes, using radiolabeled metal chelates conjugated to peptides, have potential advantages over single-targeting probes as they can recognize multiple targets leading to better sensitivity for imaging and radiotherapy when target heterogeneity is present. Two natural hormone peptide receptors, gastrin-releasing peptide (GRP) and Y1, are specifically interesting as their expression is upregulated in most breast and prostate cancers...
February 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28174381/-effectiveness-of-nivolumab-in-large-cell-neuroendocrine-carcinoma-of-the-lung-a-report-of-two-cases
#3
Wakako Daido, Masahiro Yamasaki, Naomi Saito, Sayaka Ishiyama, Naoko Deguchi, Masaya Taniwaki, Haruko Daga, Nobuyuki Ohashi
BACKGROUND: The anti-programmed death-1 antibody nivolumab is an important treatment option for non-small-cell lung carcinoma.However, its effectiveness for large-cell neuroendocrine carcinomas(LCNEC)is still controversial.Here, we report 2 cases of LCNECs that responded to nivolumab.Case 1: A 62-year-old man received chemotherapy and radiotherapy for stage III A lung adenocarcinoma.One year later, another lung lesion was observed and diagnosed as LCNEC using surgical lung biopsy.Although he subsequently received some chemotherapy regimens, the patient developed new brain metastasis, expanded mediastinal lesion, and increased levels of the tumor marker pro-gastrin releasing peptide(ProGRP)...
January 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28160247/adenocarcinoma-arising-in-multiple-hyperplastic-polyps-in-a-patient-with-helicobacter-pylori-infection-and-hypergastrinemia-during-long-term-proton-pump-inhibitor-therapy
#4
Hajime Anjiki, Ken-Ichi Mukaisho, Yu Kadomoto, Hisakazu Doi, Kunio Yoshikawa, Takahisa Nakayama, Diem Thi-Ngoc Vo, Takanori Hattori, Hiroyuki Sugihara
We report a case of developing multiple adenocarcinoma foci in multiple hyperplastic polyps in a patient with Helicobacter pylori infection and hypergastrinemia during long-term proton pump inhibitor (PPI) therapy. A 57-year-old man, who was undergoing hemodialysis for chronic renal failure, underwent an upper gastrointestinal endoscopy to elucidate the cause of anemia. Atrophic gastritis with H. pylori infection and multiple adenocarcinoma foci in multiple hyperplastic polyps were found in the endoscopic and histological examinations...
February 3, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28157737/spinal-cord-interneurons-expressing-the-gastrin-releasing-peptide-receptor-convey-itch-through-vglut2-mediated-signaling
#5
Bejan Aresh, Fabio B Freitag, Sharn Perry, Edda Blümel, Joey Lau, Marina C M Franck, Malin C Lagerström
Itch is a sensation that promotes the desire to scratch, which can be evoked by mechanical and chemical stimuli. In the spinal cord, neurons expressing the gastrin releasing peptide receptor (GRPR) have been identified as specific mediators of itch. However, our understanding of the GRPR-population in the spinal cord, and thus how these neurons exercise their functions, is limited. For this purpose, we constructed a Cre line designed to target the GRPR population of neurons (Grpr-Cre). Our analysis revealed that Grpr-Cre cells in the spinal cord are predominantly excitatory interneurons that are found in the dorsal lamina, especially in lamina II-IV...
February 1, 2017: Pain
https://www.readbyqxmd.com/read/28149841/effects-of-curcumin-on-helicobacter-pylori-infection
#6
Vaclav Vetvicka, Jana Vetvickova, Rafael Fernandez-Botran
BACKGROUND: Curcumin is a well-established natural molecule with significant biological and pharmaceutical effects. Its effects on Helicobacter pylori (H. pylori) infection have been repeatedly confirmed both in animal and human models. This study directly compared five different samples to evaluate if the effects are general or if they differ among samples. METHODS: Using a mouse model, we studied the effects of curcumin on lipid peroxide (LPO) level, myeloperoxidase (MPO) and urease activity, number of colonized bacteria, levels of anti-H...
December 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28146409/granularity-and-laxative-effect-of-ultrafine-powder-of-dendrobium-officinale
#7
DanDan Luo, Chao Qu, ZhenBiao Zhang, JianHui Xie, LieQiang Xu, HongMei Yang, CaiLan Li, GuoSheng Lin, HongFeng Wang, ZiRen Su
Constipation is a common disorder that is a significant source of morbidity among people around the world ranging from 2% to 28%. Dendrobium officinale Kimura et Migo is a traditional herbal medicine and health food used for tonicity of the stomach and promotion of body fluid production in China. This study aimed to prepare the ultrafine powder of Dendrobium officinale (UDO) and investigate its laxative effect and potential mechanism in mice with diphenoxylate-induced constipation. Results indicated that the mean diameter (d50) of UDO obtained by ball milling was 6...
February 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28144230/gastrin-and-gastric-cancer
#8
REVIEW
Helge L Waldum, Liv Sagatun, Patricia Mjønes
Gastric cancer although occurring in reduced frequency is still an important disease, partly because of the bad prognosis when occurring in western countries. This decline in occurrence may mainly be due to the reduced prevalence of Helicobacter pylori (Hp) infection, which is the most important cause of gastric cancer. There exist many different pathological classifications of gastric carcinomas, but the most useful seems to be the one by Lauren into intestinal and diffuse types since these types seldom transform into the other and also have different epidemiology...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28134770/review-receptor-targeted-nuclear-imaging-of-breast-cancer
#9
REVIEW
Simone U Dalm, John Fred Verzijlbergen, Marion De Jong
Receptor targeted nuclear imaging directed against molecular markers overexpressed on breast cancer (BC) cells offers a sensitive and specific method for BC imaging. Currently, a few targets such as estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2), somatostatin receptor (SSTR), and the gastrin releasing peptide receptor (GRPR) are being investigated for this purpose. Expression of these targets is BC subtype dependent and information that can be gained from lesion visualization is dependent on the target; ER-targeting radiotracers, e...
January 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28127106/comparative-anatomy-of-gastrin-releasing-peptide-pathways-in-the-trigeminal-sensory-system-of-mouse-and-the-asian-house-musk-shrew-suncus-murinus
#10
Keiko Takanami, Kaihei Inoue, Hiroki Mukai, Kei Tamura, Takamichi Jogahara, Sen-Ichi Oda, Mitsuhiro Kawata, Tatsuya Sakamoto, Hirotaka Sakamoto
Gastrin-releasing peptide (GRP) has recently been identified as an itch-signaling molecule in the primary afferents and spinal cord of rodents. However, little information exists on the expression and localization of GRP in the trigeminal somatosensory system other than in rats. We examined the generality of the trigeminal GRP system in mammals using two distinct species, suncus as a model of specialized placental mammals known to have a well-developed trigeminal sensory system and mice as a representative small laboratory animal...
December 28, 2016: Acta Histochemica et Cytochemica
https://www.readbyqxmd.com/read/28124156/helicobacter-pylori-induced-changes-in-gastric-acid-secretion-and-upper-gastrointestinal-disease
#11
Adam J Smolka, Mitchell L Schubert
Appropriate management of Helicobacter pylori infection of the human stomach is evolving and remains a significant clinical challenge. Acute infection results in hypochlorhydria, whereas chronic infection results in either hypo- or hyperchlorhydria, depending upon the anatomic site of infection. Acute hypochlorhydria facilitates survival of the bacterium and its infection of the stomach. Interestingly, most patients chronically infected with H. pylori manifest a pangastritis with reduced acid secretion due to bacterial virulence factors, inflammatory cytokines, and various degrees of gastric atrophy...
2017: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/28109748/chronic-proton-pump-inhibition-therapy-in-the-diagnostic-accuracy-of-serum-pepsinogen-i-and-gastrin-concentrations-to-identify-pernicious-anaemia
#12
Mariam Martín-Alcolea, Inés Rodríguez-Hernández, Marta Aldea, Irene Rosas, Jordi Juncà, Maria Luisa Granada
BACKGROUND: Chronic use of proton pump inhibitors (PPIs) leads to increases in gastrin and pepsinogen-I serum concentrations. AIM: To asses if chronic treatment with PPIs has an effect on serum gastrin and pepsinogen-I concentrations for the diagnosis of pernicious anaemia (PA). MATERIALS AND METHODS: Serum gastrin and pepsinogen-I were measured in 38 patients with PA and 74 without PA (controls); 17/38 PA patients and 36/74 controls were treated with PPIs...
January 18, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28109268/gastrin-activates-autophagy-and-increases-migration-and-survival-of-gastric-adenocarcinoma-cells
#13
Shalini V Rao, Guri Solum, Barbara Niederdorfer, Kristin G Nørsett, Geir Bjørkøy, Liv Thommesen
BACKGROUND: The peptide hormone gastrin exerts a growth-promoting effect in both normal and malignant gastrointestinal tissue. Gastrin mediates its effect via the cholecystokinin 2 receptor (CCKBR/CCK2R). Although a substantial part of the gastric adenocarcinomas express gastrin and CCKBR, the role of gastrin in tumor development is not completely understood. Autophagy has been implicated in mechanisms governing cytoprotection, tumor growth, and contributes to chemoresistance. This study explores the role of autophagy in response to gastrin in gastric adenocarcinoma cell lines...
January 21, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28108545/bombesin-antagonist-based-radiotherapy-of-prostate-cancer-combined-with-wst-11-vascular-targeted-photodynamic-therapy
#14
Kwanghee Kim, Hanwen Zhang, Stephen LaRosa, Sylvia Jebiwott, Pooja Desai, Simon Y Kimm, Avigdor J Scherz, Joseph A O'Donoghue, Wolfgang A Weber, Jonathan Coleman
PURPOSE: DOTA-AR, a bombesin-antagonist peptide, has potential clinical application for targeted imaging and therapy in Gastrin Releasing Peptide receptor (GRPr) positive malignancies when conjugated with a radioisotope such as 90Y. This therapeutic potential is limited by the fast washout of the conjugates from the target tumors. WST-11 (Weizmann STeba-11 drug; a negatively charged water-soluble palladium-bacteriochlorophyll derivative, Tookad® Soluble) Vascular targeted photodynamic therapy (VTP) is a local ablation approach recently approved for use in early stage prostate cancer...
January 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28107508/prospects-of-targeting-the-gastrin-releasing-peptide-receptor-and-somatostatin-receptor-2-for-nuclear-imaging-and-therapy-in-metastatic-breast-cancer
#15
Simone U Dalm, Willemijne A M E Schrijver, Anieta M Sieuwerts, Maxime P Look, Angelique C J Ziel-van der Made, Vanja de Weerd, John W Martens, Paul J van Diest, Marion de Jong, Carolien H M van Deurzen
BACKGROUND: The gastrin releasing peptide receptor (GRPR) and the somatostatin receptor 2 (SSTR2) are overexpressed on primary breast cancer (BC), making them ideal candidates for receptor-mediated nuclear imaging and therapy. The aim of this study was to determine whether these receptors are also suitable targets for metastatic BC. METHODS: mRNA expression of human BC samples were studied by in vitro autoradiography and associated with radioligand binding. Next, GRPR and SSTR2 mRNA levels of 60 paired primary BCs and metastases from different sites were measured by quantitative reverse transcriptase polymerase chain reaction...
2017: PloS One
https://www.readbyqxmd.com/read/28106207/natural-sweetener-agave-inhibits-gastric-emptying-in-rats-by-a-cholecystokinin-2-and-glucagon-like-peptide-1-receptor-dependent-mechanism
#16
E Bihter Gürler, Dilek Özbeyli, Hülya Buzcu, Sezin Bayraktar, İrem Carus, Beyza Dağ, Yasemin Geriş, Seda Jeral, Berrak Ç Yeğen
Low-calorie sweeteners are considered to be beneficial in calorie control, but the impact of these sweeteners on gastric emptying is not well described. The purpose of this study was to compare the gastric emptying rate of agave nectar with those of glucose and fructose, and to evaluate the interaction of cholecystokinin (CCK)-1, CCK-2 and glucagon-like peptide-1 (GLP-1) receptors in agave-induced alterations in gastric emptying. Female Sprague-Dawley rats were fitted with gastric cannulas. Following the recovery, the gastric emptying rates of glucose, fructose and agave at 12...
January 20, 2017: Food & Function
https://www.readbyqxmd.com/read/28105483/gastric-acid-secretion-and-gastrin-release-during-continuous-vagal-neuromonitoring-in-thyroid-surgery
#17
Liu Xiaoli, Che-Wei Wu, Hoon Yub Kim, Wen Tian, Feng-Yu Chiang, Renbin Liu, Angkoon Anuwong, Gregory W Randolph, Gianlorenzo Dionigi, Matteo Lavazza
PURPOSE: The vagus nerve (VN) has essential regulatory roles in the gastric acid secretion and gastrin release. Continuous intraoperative neuromonitoring (CIONM) via VN stimulation is a promising technique in thyroid surgery because it potentially avoids injury to the recurrent laryngeal nerve. However, no studies have investigated changes in gastric acid secretion and gastrin release during CIONM. METHOD: This prospective study of 58 thyroid surgery patients compared gastric acid and serum gastrin at five time points: (1) before skin incision, (2) after baseline calibration of CIONM probe, (3) +20 min from baseline, (4) before probe removal, and (5) after extubation...
January 19, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28103658/-etoposide-and-carboplatin-effective-for-treatment-of-small-cell-carcinoma-of-prostate-a-report-of-two-cases
#18
Satoru Yumiba, Toshihisa Asakura, Takayuki Okada, Mototaka Satoh, Mikio Nin, Masao Tsujihata
Case 1 : A 76-year-old man consulted a physician because of pollakisuria, decline of urinary stream. A high level of serum prostate specific antigen (PSA) was detected and he came to our hospital. He was diagnosed to have prostate cancer, cT3aN0M1b, and was treated with combined androgen blockage (CAB). Two years and nine months later, postrenal failure appeared and serum level of neuron-specific enolase (NSE) was 162 ng/ml. We performed re-biopsy of prostate, and pathological examination indicated small cell carcinoma of the prostate...
December 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28093230/gastrin-releasing-peptide-induces-monocyte-adhesion-to-vascular-endothelium-by-upregulating-endothelial-adhesion-molecules
#19
Mi-Kyoung Kim, Hyun-Joo Park, Yeon Kim, Hyung Joon Kim, Soo-Kyung Bae, Moon-Kyoung Bae
Gastrin-releasing peptide (GRP) is a neuropeptide that plays roles in various pathophysiological conditions including inflammatory diseases in peripheral tissues; however, little is known about whether GRP can directly regulate endothelial inflammatory processes. In this study, we showed that GRP promotes the adhesion of leukocytes to human umbilical vein endothelial cells (HUVECs) and the aortic endothelium. GRP increased the expression of intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) by activating nuclear factor-κB (NF-κB) in endothelial cells...
January 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28088445/synthesis-and-exploration-of-novel-radiolabeled-bombesin-peptides-for-targeting-receptor-positive-tumor
#20
Kakali De, Indranil Banerjee, Samarendu Sinha, Shantanu Ganguly
Increasing evidence of peptide receptor overexpression in various cancer cells, warrant the development of receptor specific radiolabeled peptides for molecular imaging and therapy in nuclear medicine. Gastrin-releasing-peptide (GRP) receptor, are overexpressed in a variety of human cancer cells. The present study report the synthesis and biological evaluation of new bombesin (BBN) analogs, HYNIC-Asp-[Phe(13)]BBN(7-13)-NH-CH2-CH2-CH3:BA1, HYNIC-Pro-[Tyr(13)Met(14)]BBN(7-14)NH2:BA2 as prospective tumor imaging agent with compare to BBN(7-14)NH2:BS as standard...
January 11, 2017: Peptides
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