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Neuroendocrine cancer

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https://www.readbyqxmd.com/read/28547535/middle-ear-adenomatous-neuroendocrine-tumors-a-25-year-experience-at-md-anderson-cancer-center
#1
Diana Bell, Adel K El-Naggar, Paul W Gidley
Neuroendocrine tumors are extremely rare in the middle ear. We reviewed our institutional experience with middle ear adenomatous neuroendocrine tumors (MEANTs). We searched our institution's pathology files to identify patients treated from 1990 to 2015 who had lesions classified as middle ear adenomas, adenomatous tumors, adenomatous tumors with neuroendocrine differentiation, carcinoid tumors of the middle ear, low-grade neuroendocrine tumors of the middle ear, and neuroendocrine carcinomas of the middle ear and identified 14 such patients for whom follow-up information was available...
May 26, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28542590/the-mth1-inhibitor-th588-demonstrates-anti-tumoral-effects-alone-and-in-combination-with-everolimus-5-fu-and-gamma-irradiation-in-neuroendocrine-tumor-cells
#2
Elke Tatjana Aristizabal Prada, Michael Orth, Svenja Nölting, Gerald Spöttl, Julian Maurer, Christoph Auernhammer
Modulation of the redox system in cancer cells has been considered a promising target for anti-cancer therapy. The novel MTH1 inhibitor TH588 proved tremendous potential in terms of cancer cell eradication, yet its specificity has been questioned by recent reports, indicating that TH588 may also induce cancer cell death by alternative mechanisms than MTH1 inhibition. Here we used a panel of heterogeneous neuroendocrine tumor cells in order to assess cellular mechanisms and molecular signaling pathways implicated in the effects of TH588 alone as well as dual-targeting approaches combining TH588 with everolimus, cytotoxic 5-fluorouracil or γ-irradiation...
2017: PloS One
https://www.readbyqxmd.com/read/28542311/18f-fdg-pet-ct-based-early-treatment-response-evaluation-of-nanoparticle-assisted-photothermal-cancer-therapy
#3
Kamilla Norregaard, Jesper T Jørgensen, Marina Simón, Fredrik Melander, Lotte K Kristensen, Pól M Bendix, Thomas L Andresen, Lene B Oddershede, Andreas Kjaer
Within the field of nanoparticle-assisted photothermal cancer therapy, focus has mostly been on developing novel heat-generating nanoparticles with the right optical and dimensional properties. Comparison and evaluation of their performance in tumor-bearing animals are commonly assessed by changes in tumor volume; however, this is usually a late-occurring event. This study implements 2-deoxy-2-[F-18]fluoro-D-glucose positron emission tomography imaging to perform early evaluation of the treatment outcome of photothermal therapy...
2017: PloS One
https://www.readbyqxmd.com/read/28540827/complete-cytoreductive-surgery-plus-hipec-for-peritoneal-metastases-from-unusual-cancer-sites-of-origin-results-from-a-worldwide-analysis-issue-of-the-peritoneal-surface-oncology-group-international-psogi
#4
Diane Goéré, Guillaume Passot, Maximiliano Gelli, Edward A Levine, David L Bartlett, Paul H Sugarbaker, Olivier Glehen
AIM: The aim of this study was to assess the outcomes of patients operated on for peritoneal metastases from unusual cancer sites of origin, meaning apart from PM from colorectal, gastric and epithelial ovarian carcinomas, pseudomyxoma peritonei and mesothelioma. PATIENTS AND METHODS: A questionnaire concerning patients treated with CRS plus HIPEC for PM arising from unusual cancer sites of origin was sent to all centers that routinely performed HIPEC, through the Peritoneal Surface Oncology Group International and the RENAPE network...
March 8, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540062/frequency-and-locations-of-systemic-metastases-in-merkel-cell-carcinoma-by-imaging
#5
Maria Kouzmina, Virve Koljonen, Junnu Leikola, Tom Böhling, Eila Lantto
BACKGROUND: The primary neuroendocrine skin cancer, Merkel cell carcinoma (MCC), has a well-known predilection to metastasize systemically. However, the experience of systemic metastases in MCC is mainly disseminated through case reports due to the rarity of MCC. PURPOSE: To elucidate the frequency and locations of systemic metastasis in MCC by reviewing the imaging of patients with metastatic MCC in a national cohort. MATERIAL AND METHODS: Patients with diagnosed metastatic MCC by imaging studies in Finland during 1999-2012 were included in this study...
March 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/28538405/marked-response-to-nab-paclitaxel-in-egfr-mutated-lung-neuroendocrine-carcinoma-a-case-report
#6
Jin-Yan Liang, Fan Tong, Fei-Fei Gu, Yang-Yang Liu, Yu-Lan Zeng, Xiao-Hua Hong, Kai Zhang, Li Liu
RATIONALE: Lung cancer is the leading cause of cancer-related death in the world. Tyrosine kinase inhibitors (TKIs), which target mutated epidermal growth factor receptor (EGFR), have been the first-line treatment of late-stage lung adenocarcinoma harboring EGFR mutation. EGFR mutations are mostly identified in lung adenocarcinoma. However, it is rarely seen in lung neuroendocrine carcinoma, and treatment strategies remain under reported. PATIENT CONCERNS: Here, we describe a 54-year-old Chinese man diagnosed with lung adenocarcinoma (cT4N3M1b, stage IV) with neuroendocrine differentiation and L858R mutation on exon 21...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28537194/an-investigation-into-the-potential-role-of-brain-angiogenesis-inhibitor-protein-3-bai3-in-the-tumorigenesis-of-small-cell-carcinoma-a-review-of-the-surrounding-literature
#7
Michael Thomas, David Snead, Daniel Mitchell
Brain angiogenesis inhibitor protein 3 (BAI3) is from the adhesion group of seven-transmembrane spanning G protein-coupled receptors (GPCRs) and has been identified via gene expression profiling as being upregulated in small-cell lung cancer (SCLC) tumors. It has subsequently been validated as a sensitive and specific immunohistochemical marker for SCLC, helping to differentiate these tumors from morphologically similar large-cell neuroendocrine (LCNEC) malignancies. It is, however, still unclear as to the role BAI3 proteins might play in SCLC and indeed how they might contribute to tumorigenesis...
May 24, 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28535939/gene-expression-profiling-of-large-cell-lung-cancer-links-transcriptional-phenotypes-to-the-new-histological-who2015-classification
#8
Anna Karlsson, Hans Brunnström, Patrick Micke, Srinivas Veerla, Johanna Mattsson, Linnea La Fleur, Johan Botling, Mats Jönsson, Christel Reuterswärd, Maria Planck, Johan Staaf
INTRODUCTION: Large cell carcinoma with or without neuroendocrine features (LCNEC and LC, respectively) constitutes a small proportion of non-small cell lung cancer (NSCLC). The WHO2015 classification guidelines changed the definition of the debated histological subtype LC to be based on immunomarkers for adenocarcinoma and squamous cancer. We sought to determine if these new guidelines translate also to the transcriptional landscape of lung cancer, and LC specifically. METHODS: Gene expression profiling was performed using Illumina V4 HT12 microarrays on 159 cases (comprising all histological subtypes including 10 WHO2015 LC and 14 LCNEC tumors), with complimentary mutational and IHC data...
May 20, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28533641/image-findings-of-a-rare-case-of-neuroendocrine-tumor-metastatic-to-orbital-extraocular-muscle-in-gallium-68-dotanoc-positron-emission-tomography-computed-tomography-and-therapy-with-lutetium-177-dotatate
#9
Koramadai Karuppusamy Kamaleshwaran, Jephy Joseph, Indra Upadhya, Ajit Sugunan Shinto
Metastatic tumor is one of several etiologies of space-occupying masses in the orbit that accounts for 1-13% of all orbital masses. In the adult patient population, breast cancer is the most common tumor to metastasize to the orbit, followed by metastasis from the lung, prostate, and gastrointestinal tract. Carcinoid tumors are rare neuroendocrine neoplasms derived from enterochromaffin cells, which are found primarily in the gastrointestinal tract and bronchial tree. Liver metastases are the classic presentation of distant disease...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28529747/amrubicin-monotherapy-may-be-an-effective-second-line-treatment-for-patients-with-large-cell-neuroendocrine-carcinoma-or-high-grade-non-small-cell-neuroendocrine-carcinoma
#10
Norimitsu Kasahara, Kazushige Wakuda, Shota Omori, Kazuhisa Nakashima, Akira Ono, Tetsuhiko Taira, Hirotsugu Kenmotsu, Tateaki Naito, Haruyasu Murakami, Keita Mori, Reiko Watanabe, Masahiro Endo, Takashi Nakajima, Masanobu Yamada, Toshiaki Takahashi
There is no standard chemotherapy for pulmonary large-cell neuroendocrine carcinoma (LCNEC) and this type of cancer is difficult to diagnose using biopsy specimens. At the Shizuoka Cancer Center, when small biopsy specimens are used, they are diagnosed as high-grade non-small-cell neuroendocrine carcinoma (HNSCNEC) and the patients are treated according to the small-cell lung cancer (SCLC) guidelines. Amrubicin is an effective second-line treatment for patients with SCLC, although it remains unclear whether amrubicin monotherapy is effective for patients with LCNEC or HNSCNEC...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28528509/invasive-lobular-carcinoma-with-extracellular-mucin-production-a-novel-pattern-of-lobular-carcinomas-of-the-breast-clinico-pathological-description-of-eight-cases
#11
Gábor Cserni, Giuseppe Floris, Nektarios Koufopoulos, Anikó Kovács, Afroditi Nonni, Peter Regitnig, Anders Stahls, Zsuzsanna Varga
Invasive lobular carcinoma of the breast is known to produce intracellular mucin and has been recognized in single-case reports to show extracellular mucin production, as well. This latter morphology is not only rare but must also be under- or misdiagnosed. The aim was to better characterize this entity. Cases of lobular cancers demonstrating extracellular mucin formation were identified in a multi-institutional effort and their clinical and morphologic features were assessed. Immunohistochemistry was used to characterize the E-cadherin-membrane complex, neuroendocrine differentiation, and to some extent, mucin formation...
May 20, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28527884/adjuvant-medications-that-improve-survival-after-locoregional-therapy
#12
F Edward Boas, Etay Ziv, Hooman Yarmohammadi, Karen T Brown, Joseph P Erinjeri, Constantinos T Sofocleous, James J Harding, Stephen B Solomon
PURPOSE: To determine if outpatient medications taken at the time of liver tumor embolization or ablation affect survival. MATERIALS AND METHODS: A retrospective review was done of 2,032 liver tumor embolization, radioembolization, and ablation procedures performed in 1,092 patients from June 2009 to April 2016. Pathology, hepatocellular carcinoma (HCC) stage (American Joint Committee on Cancer), neuroendocrine tumor (NET) grade, initial locoregional therapy, overall survival after initial locoregional therapy, Child-Pugh score, Eastern Cooperative Oncology Group performance status, Charlson Comorbidity Index, and outpatient medications taken at the time of locoregional therapy were analyzed for each patient...
May 17, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28527569/estrogen-hormone-biology
#13
Katherine J Hamilton, Sylvia C Hewitt, Yukitomo Arao, Kenneth S Korach
The hormone estrogen is involved in both female and male reproduction, as well as numerous other biological systems including the neuroendocrine, vascular, skeletal, and immune systems. Therefore, it is also implicated in many different diseases and conditions such as infertility, obesity, osteoporosis, endometriosis, and a variety of cancers. Estrogen works through its two distinct nuclear receptors, estrogen receptor alpha (ERα) and estrogen receptor beta (ERβ). Various transcriptional regulation mechanisms have been identified as the mode of action for estrogen, mainly the classical mechanism with direct DNA binding but also a nongenomic mode of action and one using tethered or indirect binding...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28523075/mouse-mammary-tumour-virus-mmtv-and-human-breast-cancer-with-neuroendocrine-differentiation
#14
Lawson Js, Ngan Cc, Glenn Wk, Tran Dd
BACKGROUND: Mouse mammary tumour viruses (MMTVs) may have a role in a subset of human breast cancers. MMTV positive human breast cancers have similar histological characteristics to neuroendocrine breast cancers and to MMTV positive mouse mammary tumours. The purpose of this study was to investigate the expression of neuroendocrine biomarkers - synaptophysin and chromogranin, to determine if these histological characteristics and biomarker expression were due to the influences of MMTV...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28522124/-prostate-cancer-histoseminar-update-of-the-2016-who-classification%C3%A2-%C3%A2-case-n-o-6-castration-resistant-prostate-cancer-with-partial-neuroendocrin-differenciation
#15
https://www.readbyqxmd.com/read/28521422/clinical-outcomes-and-prognostic-factors-of-resected-pancreatic-neuroendocrine-neoplasms-a-single-center-experience-in-china
#16
Kaizhou Jin, Guopei Luo, Jin Xu, Bo Zhang, Chen Liu, Shunrong Ji, Liang Liu, Jiang Long, Quanxing Ni, Xianjun Yu
The aim of the present study was to investigate the clinical, pathological and prognostic characteristics of Chinese patients with resected pancreatic neuroendocrine neoplasms (p-NENs). Data from patients who were surgically treated and pathologically diagnosed with p-NENs at the Department of Pancreatic Oncology of the Fudan University Shanghai Cancer Center (Shanghai, China), between January 2003 and July 2015, were evaluated using univariate and multivariate analyses. A total of 162 patients with p-NENs met the criteria of the present study and were included in the analysis...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521295/change-from-lung-adenocarcinoma-to-small-cell-lung-cancer-as-a-mechanism-of-resistance-to-afatinib
#17
Paolo Manca, Marco Russano, Francesco Pantano, Giuseppe Tonini, Daniele Santini
We report the case of a patient affected by advanced EGFR mutation-positive lung who experienced resistance to therapy during treatment with Afatinib through the occurrence of a switch of tumor histotype to small cell lung cancer (SCLC) with features of a G3 neuroendocrine carcinoma. Unexpectedly, the switch to SCLC histotype occurred in the only site not responsive to afatinib and subsequently the most responsive to chemotherapy. Our case shows that occurrence of switch to SCLC is a possible mechanism of resistance during treatment with Afatinib...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28521118/automated-cassette-based-production-of-high-specific-activity-203-212-pb-peptide-based-theranostic-radiopharmaceuticals-for-image-guided-radionuclide-therapy-for-cancer
#18
Mengshi Li, Xiuli Zhang, Thomas P Quinn, Dongyoul Lee, Dijie Liu, Falk Kunkel, Brian E Zimmerman, Daniel McAlister, Keith Olewein, Yusuf Menda, Saed Mirzadeh, Roy Copping, Frances L Johnson, Michael K Schultz
A method for preparation of Pb-212 and Pb-203 labeled chelator-modified peptide-based radiopharmaceuticals for cancer imaging and radionuclide therapy has been developed and adapted for automated clinical production. Pre-concentration and isolation of radioactive Pb2+ from interfering metals in dilute hydrochloric acid was optimized using a commercially-available Pb-specific chromatography resin packed in disposable plastic columns. The pre-concentrated radioactive Pb2+ is eluted in NaOAc buffer directly to the reaction vessel containing chelator-modified peptides...
May 10, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28516286/establishment-of-a-tumor-sphere-cell-line-from-a-metastatic-brain-neuroendocrine-tumor
#19
Ryoichi Iwata, Masato Maruyama, Tomoki Ito, Yosuke Nakano, Yonehiro Kanemura, Taro Koike, Souichi Oe, Kunikazu Yoshimura, Masahiro Nonaka, Shosaku Nomura, Tetsuo Sugimoto, Hisao Yamada, Akio Asai
Neuroendocrine tumors are rare, and little is known about the existence of cancer stem cells in this disease. Identification of the tumorigenic population will contribute to the development of effective therapies targeting neuroendocrine tumors. Surgically resected brain metastases from a primary neuroendocrine tumor of unknown origin were dissociated and cultured in serum-free neurosphere medium. Stem cell properties, including self-renewal, differentiation potential, and stem cell marker expression, were examined...
May 17, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28507205/a-case-of-metastatic-atypical-neuroendocrine-tumor-with-alk-translocation-and-diffuse-brain-metastases
#20
Victoria E Wang, Lauren Young, Siraj Ali, Vincent A Miller, Anatoly Urisman, John Wolfe, Trever G Bivona, Bertil Damato, Shannon Fogh, Emily K Bergsland
A challenge in precision medicine requires identification of actionable driver mutations. Critical to such effort is the deployment of sensitive and well-validated assays for mutation detection. Although identification of such alterations within the tumor tissue remains the gold standard, many advanced non-small cell lung cancer cases have only limited tissue samples, derived from small biopsies or fine-needle aspirates, available for testing. More recently, noninvasive methods using either circulating tumor cells or tumor DNA (ctDNA) have become an alternative method for identifying molecular biomarkers and screening patients eligible for targeted therapies...
May 15, 2017: Oncologist
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