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Neuroendocrine tumor metastasic treatment

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https://www.readbyqxmd.com/read/28069896/anti-tumor-effects-of-shikonin-derivatives-on-human-medullary-thyroid-carcinoma-cells
#1
Carina Hasenoehrl, Gert Schwach, Nassim Ghaffari-Tabrizy-Wizsy, Robert Fuchs, Nadine Kretschmer, Rudolf Bauerr, Roswitha Pfragner
New treatment options are needed for medullary thyroid carcinoma (MTC), a highly metastasizing neuroendocrine tumor that is resistant to standard radio- and chemotherapy. We show that the following shikonin derivatives inhibit cell proliferation and cell viability of the MTC cell line TT: acetylshikonin, β,β-dimethylacrylshikonin, shikonin and a petroleum ether extract of the roots of Onosma paniculata containing several shikonin derivatives. The unsubstituted shikonin derivative was found to be the most effective compound with an IC50 of 1...
January 9, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28030811/systematic-review-of-resecting-primary-tumor-in-mnets-patients-with-unresectable-liver-metastases
#2
Jingfei Guo, Qian Zhang, Xinyu Bi, Jianguo Zhou, Zhiyu Li, Zhen Huang, Yefan Zhang, Muxing Li, Xiao Chen, Xuhui Hu, Chi Yihebali, Junbo Liang, Jianmei Liu, Jianjun Zhao, Jianqiang Cai, Hong Zhao
BACKGROUND: Treatment for midgut neuroendocrine tumor patients with unresectable liver metastasis has long been a controversial issue. This system review aims to summarize existing evidence concerning the value of primary tumor resection in this group of patients. RESULTS: 8 cohort studies were identified for qualitative analysis. None of them strictly met with the inclusion criteria and meta-analysis was impossible. There was a tendency towards better overall survival for the primary tumor resected group in all 8 studies, in which 6 demonstrated significant difference...
December 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/28018101/management-of-neuroendocrine-carcinomas-of-the-pancreas-who-g3-a-tailored-approach-between-proliferation-and-morphology
#3
REVIEW
Stefano Crippa, Stefano Partelli, Giulio Belfiori, Marco Palucci, Francesca Muffatti, Olga Adamenko, Luca Cardinali, Claudio Doglioni, Giuseppe Zamboni, Massimo Falconi
Neuroendocrine carcinomas (NEC) of the pancreas are defined by a mitotic count > 20 mitoses/10 high power fields and/or Ki67 index > 20%, and included all the tumors previously classified as poorly differentiated endocrine carcinomas. These latter are aggressive malignancies with a high propensity for distant metastases and poor prognosis, and they can be further divided into small- and large-cell subtypes. However in the NEC category are included also neuroendocrine tumors with a well differentiated morphology but ki67 index > 20%...
December 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28005640/early-detection-of-bone-metastasis-in-small-cell-neuroendocrine-carcinoma-of-the-cervix-by-68ga-dotatate-pet-ct-imaging
#4
Andres Damian, Graciela Lago, Susana Rossi, Omar Alonso, Henry Engler
The neuroendocrine small cell carcinoma of the cervix is a rare malignancy that has a poor prognosis due to early lymphatic and hematogenous spread. We herein report a case of a 27- year-old woman who was referred for initial staging of a neuroendocrine small cell carcinoma with previous unremarkable structural imaging. Ga-DOTATATE PET/CT revealed focal uptake at the primary tumor and in a solitary pelvic bone lesion suggestive of metastases that was further confirmed by CT-guided biopsy. Somatostatin receptor PET/CT may be a useful image modality for early detection of metastases to guide treatment in these patients...
December 21, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27999735/identification-of-immunotherapeutic-targets-by-genomic-profiling-of-rectal-net-metastases
#5
Zeynep Koşaloğlu, Inka Zörnig, Niels Halama, Iris Kaiser, Ivo Buchhalter, Niels Grabe, Roland Eils, Matthias Schlesner, Andrea Califano, Dirk Jäger
Neuroendocrine tumors (NETs) of the gastrointestinal tract are a rare and heterogeneous group of neoplasms with unique tumor biology and clinical management issues. While surgery is the only curative treatment option in patients with early stage NETs, the optimal management strategy for patients with advanced metastatic NETs is unknown. Based on the tremendous success of immunotherapeutic approaches, we sought to investigate such approaches in a case of metastatic rectal NET. Here, we apply an integrative approach using various computational and experimental methods to explore several aspects of the tumor-host immune interactions for immunotherapeutic options...
2016: Oncoimmunology
https://www.readbyqxmd.com/read/27989047/results-of-contemporary-valve-surgery-in-patients-with-carcinoid-heart-disease
#6
Thomas Kuntze, Tamer Owais, Maria-Anna Secknus, Daniel Kaemmerer, Richard Baum, Evaldas Girdauskas
BACKGROUND: Carcinoid tumor is a slow-growing type of neuroendocrine tumor, originating from enterochromaffin cells and secreting mainly serotonin. The diagnosis is based on clinical symptoms, hormone blood levels, radiological and nuclear imaging, and histological confirmation. However, most patients have metastases at the time of diagnosis because the clinical signs often remain unnoticed or are attributed to other abdominal conditions. In up to 50% of patients the endocardium is affected due to a hormonally active tumor profile...
May 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27986172/magnetic-resonance-imaging-of-liver-metastasis
#7
Ali Devrim Karaosmanoglu, Mehmet Ruhi Onur, Mustafa Nasuh Ozmen, Deniz Akata, Musturay Karcaaltincaba
Liver magnetic resonance imaging (MRI) is becoming the gold standard in liver metastasis detection and treatment response assessment. The most sensitive magnetic resonance sequences are diffusion-weighted images and hepatobiliary phase images after Gd-EOB-DTPA. Peripheral ring enhancement, diffusion restriction, and hypointensity on hepatobiliary phase images are hallmarks of liver metastases. In patients with normal ultrasonography, computed tomography (CT), and positron emission tomography (PET)-CT findings and high clinical suspicion of metastasis, MRI should be performed for diagnosis of unseen metastasis...
December 2016: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/27977507/neuroendocrine-gastroenteropancreatic-tumors-where-are-we
#8
Jose L Ulla Rocha, Angel Salgado, Raquel Sardina Ferreiro, Pablo Fernandez Catalina, Elena Gallardo
AIMS: Neuroendocrine gastroenteropancreatic tumors are infrequently found neoplasms. Our objective was to analyze the survival rates for all sites that they occur in by studying different variables. MATERIALS AND METHODS: A retrospective study was carried out using records for a 7-year period from January 1, 2008 to December 31, 2014 on neuroendocrine gastroenteropancreatic tumors patients diagnosed at the Pontevedra-Salnés Hospital Complex. The variables used were as follows: age at diagnosis, tumor size, presence or absence of metastases at diagnosis, cell proliferation index, Ki-67 of each tumor, treatments received, postdiagnosis survival time, existence or not of tumor progression, and time from diagnosis to progression and from diagnosis to mortality...
December 13, 2016: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/27956089/outcome-analysis-of-first-line-somatostatin-analog-treatment-in-metastatic-pulmonary-neuroendocrine-tumors-and-prognostic-significance-of-18-fdg-pet-ct
#9
Alberto Bongiovanni, Federica Recine, Nada Riva, Flavia Foca, Chiara Liverani, Laura Mercatali, Silvia Nicolini, Federica Pieri, Dino Amadori, Toni Ibrahim
INTRODUCTION: Pulmonary carcinoids (PCs) are classed according to the World Health Organization 2004 classification as typical or atypical carcinoids. Owing to their rarity, no dedicated clinical trials with somatostatin analogs (SSAs) have been carried out on primary PCs. PATIENTS AND METHODS: From January 2007 to December 2015, 30 patients with metastatic PCs underwent first-line SSA treatment (20 with octreotide long-acting repeatable 30 mg and 10 with lanreotide 120 mg every 28 days)...
November 21, 2016: Clinical Lung Cancer
https://www.readbyqxmd.com/read/27928791/-clinicopathological-features-and-prognosis-of-patients-with-gastric-neuroendocrine-carcinoma-from-multiple-centers-in-southern-china
#10
Cheng Fang, Wei Wang, Yu Zhang, Xingyu Feng, Yujie Zeng, Yong Li, Jie Chen, Ye Chen, Zhiwei Zhou
OBJECTIVE: To analyze the clinicopathological features and prognostic factors of gastric neuroendocrine carcinoma(NEC) based on a multicenter database from five medical centers in Southern China. METHODS: Clinical and pathological data of 1 183 gastroenteropancreatic neuroendocrine neoplasms patients between January 2006 and December 2015 from five centers were retrospectively analyzed. A total of 156 gastric NEC cases(13.2%) with complete follow-up information were screened and included in the study, wherein 73 cases from Sun Yat-sen University Cancer Center, 27 cases from Nanfang Hospital of Southern Medical University, 26 cases from The First Affiliated Hospital of Sun Yat-sen University, 15 cases from Guangdong General Hospital and 15 cases from Sun Yat-sen Memorial Hospital of Sun Yat-sen University...
November 25, 2016: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/27928440/a-rare-case-of-metastasized-non-functional-pancreatic-neuroendocrine-tumor-with-a-good-long-term-survival
#11
Mirică A, Bădărău Ia, Mirică R, Păun S, Păun Dl
Background: Non-functional neuroendocrine tumors of the pancreas (NF-pNETs) are a varied group of extremely rare malignancies. The majority of patients already have liver metastases at the diagnosis moment, thus, treatment options are restricted, and the survival rate is reserved. Case report: We presented the case of 59-year-old patient, diagnosed with non-functional well-differentiated pancreatic neuroendocrine tumor grade II (NET G2) with the presence of chromogranin A, synaptophysin and somatostatin receptor 2, together with liver and bone metastases...
October 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27922860/the-impact-of-radiological-response-to-peptide-receptor-radionuclide-therapy-on-overall-survival-in-patients-with-metastatic-midgut-neuroendocrine-tumors
#12
Mehmet Yalchin, Amelia Oliveira, Eleni Theocharidou, Deborah Pencharz, Shaunak Navalkissoor, Ann-Marie Quigley, Martin Walker, Martyn Caplin, Christos Toumpanakis
PURPOSE OF THE REPORT: Peptide receptor radionuclide therapy (PRRT) is an effective treatment for advanced neuroendocrine tumors (NET); however, long-term survival data are scarce. The aim of this study is to determine long-term survival in patients with metastatic midgut NET, according to response to PRRT. PATIENTS AND METHODS: One hundred thirty-three consecutive patients with progressive metastatic midgut NET underwent PRRT. Response at 1 year post PRRT was classified as partial response, stable disease, disease progression, or death...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27919009/successful-percutaneous-ct-guided-microwave-ablation-of-adrenal-gland-for-ectopic-cushing-syndrome
#13
Rebecca Zener, Andrew Zaleski, Stan H Van Uum, Daryl K Gray, Amol Mujoomdar
Adrenocorticotropic hormone production by pancreatic neuroendocrine tumor (PNET) is rare and results in hyperstimulation of the adrenal gland to produce ectopic Cushing syndrome. Our case showcases the safety and effectiveness of percutaneous CT-guided microwave ablation of the adrenal gland in a 49-year-old female with PNET and hepatic metastases who presented with ectopic Cushing syndrome despite surgical resection of the primary pancreatic tumor and left adrenal gland. Prior to ablation, the right adrenal gland measured 4...
November 29, 2016: Clinical Imaging
https://www.readbyqxmd.com/read/27915372/surgical-treatment-of-neuroendocrine-tumors-in-the-second-portion-of-the-duodenum-a-single-center-experience-and-systematic-review-of-the-literature
#14
Toshimitsu Iwasaki, Satoshi Nara, Yoji Kishi, Minoru Esaki, Kazuaki Shimada, Nobuyoshi Hiraoka
PURPOSE: The treatment of choice for duodenal neuroendocrine tumors (NETs) ranges from endoscopic resection and local excision to pancreaticoduodenectomy. The aim of this study was to investigate the optimal treatment for this tumor. METHODS: We retrospectively analyzed the clinicopathological data of 14 patients with NETs in the second portion of the duodenum who underwent surgery in our hospital from 2000 to 2015. The duodenal NETs were classified as either ampullary or non-ampullary...
December 3, 2016: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/27903179/gamma-knife-radiosurgery-for-brain-metastases-from-pulmonary-large-cell-neuroendocrine-carcinoma-a-japanese-multi-institutional-cooperative-study-jlgk1401
#15
Takuya Kawabe, Masaaki Yamamoto, Yasunori Sato, Shoji Yomo, Takeshi Kondoh, Osamu Nagano, Toru Serizawa, Takahiko Tsugawa, Hisayo Okamoto, Atsuya Akabane, Kazuyasu Aita, Manabu Sato, Hidefumi Jokura, Jun Kawagishi, Takashi Shuto, Hideya Kawai, Akihito Moriki, Hiroyuki Kenai, Yoshiyasu Iwai, Masazumi Gondo, Toshinori Hasegawa, Soichiro Yasuda, Yasuhiro Kikuchi, Yasushi Nagatomo, Shinya Watanabe, Naoya Hashimoto
OBJECTIVE In 1999, the World Health Organization categorized large cell neuroendocrine carcinoma (LCNEC) of the lung as a variant of large cell carcinoma, and LCNEC now accounts for 3% of all lung cancers. Although LCNEC is categorized among the non-small cell lung cancers, its biological behavior has recently been suggested to be very similar to that of a small cell pulmonary malignancy. The clinical outcome for patients with LCNEC is generally poor, and the optimal treatment for this malignancy has not yet been established...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27900009/early-diagnosis-and-treatment-of-gastrointestinal-neuroendocrine-tumors
#16
Hong Shen, Zhuo Yu, Jing Zhao, Xiu-Zhen Li, Wen-Sheng Pan
The aim of the present retrospective analysis on the macroscopic appearance and pathological characteristics of gastrointestinal neuroendocrine tumors (NETs) was to investigate methods for their early diagnosis and treatment. A total of 78 patients were divided into submucosal NET and deeper invasion NET groups, according to the depth of tumor invasion exhibited by the patients. The clinicopathological characteristics and survival time of the NET patients were analyzed and compared. The pathological characteristics of the submucosal NETs group were investigated according to the diameter of the tumor (≤5...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27888490/large-cell-neuroendocrine-carcinoma-of-the-common-bile-duct-a-case-report-and-a-review-of-literature
#17
Makoto Murakami, Kanji Katayama, Shigeru Kato, Daisuke Fujimoto, Mitsuhiro Morikawa, Kenji Koneri, Yasuo Hirono, Takanori Goi
BACKGROUND: Large-cell neuroendocrine carcinoma (LCNEC) of the bile duct is extremely rare and is a high-grade type of neuroendocrine tumor with an aggressive clinical course. Here, we report a case of LCNEC of the extrahepatic bile duct. CASE PRESENTATION: An 80-year-old man presented with severe jaundice. Endoscopic retrograde cholangiography and enhanced computed tomography revealed complete obstruction of the common bile duct (CBD) by a dense tumor measuring 1...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27870680/liver-metastases-from-noncolorectal-malignancies-neuroendocrine-tumor-sarcoma-melanoma-breast
#18
Erica S Alexander, Michael C Soulen
Patients with noncolorectal hepatic metastases often face limited treatment options and a dismal prognosis. Over the last decade, the advent of targeted immunotherapies has transformed the treatment of certain metastatic cancers, such as sarcoma and melanoma; however, these patients eventually develop resistance. Metastatic sarcoma, melanoma, and breast and neuroendocrine tumors are notoriously treatment resistant once they have metastasized to the liver. For these cancers, minimally invasive transarterial and ablation therapies have emerged as safe, palliative therapies that can provide symptom control and even prolong survival...
November 2016: Cancer Journal
https://www.readbyqxmd.com/read/27864816/giant-insulinoma-report-of-a-case-and-review-of-published-reports
#19
Kazumitsu Ueda, Tetsuro Taira, Hiroyuki Hakoda, Shoko Nakata, Shinya Okata, Takeshi Nagai, Shigeo Aoki, Hideyuki Mishima, Akihiko Sako, Tsunehiko Maruyama, Minoru Okumura
BACKGROUND: Larger insulinomas are reportedly more likely to be malignant; however, their biological behavior has not been clearly elucidated. We here report the characteristics and treatment of a giant insulinoma with local invasion and lymph node metastasis. We also review published reports concerning the clinical features of giant insulinomas and comparing their grading with that of pancreatic neuroendocrine tumors. CASE PRESENTATION: A 71-year-old man was referred to our hospital for investigation of persistent hypoglycemia...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27835867/keratin-13-expression-reprograms-bone-and-brain-metastases-of-human-prostate-cancer-cells
#20
Qinlong Li, Lijuan Yin, Lawrence W Jones, Gina C-Y Chu, Jason B-Y Wu, Jen-Ming Huang, Quanlin Li, Sungyong You, Jayoung Kim, Yi-Tsung Lu, Stefan Mrdenovic, Ruoxiang Wang, Michael R Freeman, Isla Garraway, Michael S Lewis, Leland W K Chung, Haiyen E Zhau
Lethal progression of prostate cancer metastasis can be improved by developing animal models that recapitulate the clinical conditions. We report here that cytokeratin 13 (KRT13), an intermediate filament protein, plays a directive role in prostate cancer bone, brain, and soft tissue metastases. KRT13 expression was elevated in bone, brain, and soft tissue metastatic prostate cancer cell lines and in primary and metastatic clinical prostate, lung, and breast cancer specimens. When KRT13 expression was determined at a single cell level in primary tumor tissues of 44 prostate cancer cases, KRT13 level predicted bone metastasis and the overall survival of prostate cancer patients...
November 7, 2016: Oncotarget
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