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https://www.readbyqxmd.com/read/28319500/clinical-response-profile-of-metastatic-advanced-pulmonary-neuroendocrine-tumors-to-peptide-receptor-radionuclide-therapy-with-177lu-dotatate
#1
Rahul V Parghane, Sanjay Talole, Kumar Prabhash, Sandip Basu
OBJECTIVES: The aims of this study were to perform multiparametric response assessment of metastatic/advanced pulmonary neuroendocrine tumors (NETs) to Lu-DOTATATE peptide receptor radionuclide therapy (PRRT) (clinical, biochemical, molecular/structural imaging, and survival assessment) and to study the relationship between response, mortality, and overall survival with dual-tracer molecular imaging parameters. METHODS: Twenty-two patients (6 women, 16 men; median age, 44 years; range, 16-72 years) of histopathologically proven pulmonary NETs with metastatic/advanced disease were included and analyzed retrospectively...
March 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28319436/estimating-the-risks-of-breast-cancer-radiotherapy-evidence-from-modern-radiation-doses-to-the-lungs-and-heart-and-from-previous-randomized-trials
#2
Carolyn Taylor, Candace Correa, Frances K Duane, Marianne C Aznar, Stewart J Anderson, Jonas Bergh, David Dodwell, Marianne Ewertz, Richard Gray, Reshma Jagsi, Lori Pierce, Kathleen I Pritchard, Sandra Swain, Zhe Wang, Yaochen Wang, Tim Whelan, Richard Peto, Paul McGale
Purpose Radiotherapy reduces the absolute risk of breast cancer mortality by a few percentage points in suitable women but can cause a second cancer or heart disease decades later. We estimated the absolute long-term risks of modern breast cancer radiotherapy. Methods First, a systematic literature review was performed of lung and heart doses in breast cancer regimens published during 2010 to 2015. Second, individual patient data meta-analyses of 40,781 women randomly assigned to breast cancer radiotherapy versus no radiotherapy in 75 trials yielded rate ratios (RRs) for second primary cancers and cause-specific mortality and excess RRs (ERRs) per Gy for incident lung cancer and cardiac mortality...
March 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28303858/role-of-neutrophil-extracellular-traps-in-asthma-and-chronic-obstructive-pulmonary-disease
#3
REVIEW
Ting Liu, Fa-Ping Wang, Geng Wang, Hui Mao
OBJECTIVE: Asthma and chronic obstructive pulmonary disease (COPD) are representative chronic inflammatory airway diseases responsible for a considerable burden of disease. In this article, we reviewed the relationship between neutrophil extracellular traps (NETs) and chronic inflammatory airway diseases. DATA SOURCES: Articles published up to January 1, 2017, were selected from the PubMed, Ovid Medline, Embase databases, with the keywords of "asthma" or "pulmonary disease, chronic obstructive", "neutrophils" and "extracellular traps...
March 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28295876/a-vicious-partnership-between-akt-and-phlda3-to-facilitate-neuroendocrine-tumors
#4
Masahiro Takikawa, Rieko Ohki
Neuroendocrine tumors (NETs) are rare cancers that generally have a poor prognosis. Accurate diagnosis and proper treatment of these tumors requires a better understanding of the molecular mechanisms underlying the development of NETs. It has been shown that the mTOR inhibitor everolimus can improve the progression-free survival of pancreatic NET (PanNET) patients, suggesting that inhibition of the PI3K-Akt-mTOR pathway may suppress the progression of PanNETs. PHLDA3 is a novel tumor suppressor protein that inhibits Akt activation by competition for binding to PIP3 ...
March 12, 2017: Cancer Science
https://www.readbyqxmd.com/read/28286565/everolimus-in-the-management-of-metastatic-neuroendocrine-tumours
#5
REVIEW
David L Chan, Eva Segelov, Simron Singh
Neuroendocrine tumours are increasing in incidence and cause a variety of symptoms. The mammalian target of rapamycin (mTOR) pathway plays a key role in neuroendocrine tumour (NET) pathogenesis, leading to increased lipid synthesis, protein synthesis and cellular growth. Upregulation of this pathway is noted in both hereditary and sporadic NETs. This understanding has led to investigations of mTOR inhibitors as therapy for metastatic NETs. After promising preclinical findings, everolimus, an mTOR inhibitor, was trialled in the RADIANT-1-4 studies on patients with advanced, well differentiated NETs...
January 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28277868/crizotinib-treatment-for-advanced-non-small-cell-lung-cancer-patients-a-budget-impact-analysis-based-in-thailand
#6
Sumitra Thongprasert, Unchalee Permsuwan
OBJECTIVE: With the advent of anaplastic lymphoma kinase (ALK) inhibitor, treatment of advanced non-small cell lung cancer (NSCLC) patients with ALK positive has become more effective while drug cost are still a major concern. This study aimed to estimate the budget impact of crizotinib versus other standard therapies in Thai advanced NSCLC patients with ALK rearrangement. METHODS: The budget impact model was developed to estimate the net budget impact of world with crizotinib compared with world without crizotinib considering payer's perspective over a three-year period...
February 21, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28275490/erroneous-diagnosis-of-small-cell-lung-cancer-based-on-small-biopsies-with-far-reaching-consequences-case-report-of-a-typical-carcinoid-tumor
#7
Ioannis Kyritsis, Bettina Krebs, Sandra Kampe, Dirk Theegarten, Clemens Aigner, Stefan Welter
Although neuroendocrine tumors (NETs) of the lung are frequently discussed together, carcinoids are very different from high-grade small cell lung carcinoma (SCLC). SCLC is found in heavy-smoking, older patients, whereas smoking is not strongly associated with carcinoid tumors. We present the case of a 46-year-old never smoking woman who was misdiagnosed with SCLC. The patient was not responsive to radio-chemotherapy plus prophylactic cranial irradiation (PCI); she had a typical carcinoid (TC) tumor according to the final pathology report...
February 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28264844/in-vivo-pharmacokinetic-and-pharmacodynamic-profiles-of-antofloxacin-against-klebsiella-pneumoniae-in-a-neutropenic-murine-lung-infection-model
#8
Yu-Feng Zhou, Meng-Ting Tao, Wei Huo, Xiao-Ping Liao, Jian Sun, Ya-Hong Liu
Antofloxacin is a novel broad-spectrum fluoroquinolone under development for the treatment of infections caused by a diverse group of bacterial species. We explored the pharmacodynamic (PD) profile and targets of antofloxacin against seven Klebsiella pneumoniae isolates using a neutropenic murine lung infection model. Plasma and bronchopulmonary pharmacokinetic studies were conducted at single subcutaneous doses of 2.5, 10, 40 and 160 mg/kg. Mice were infected intratracheally with K. pneumoniae and treated using 2-fold increasing total doses of antofloxacin ranging from 2...
March 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28255807/predictors-of-psychological-distress-among-cancer-patients-receiving-care-at-a-safety-net-institution-the-role-of-younger-age-and-psychosocial-problems
#9
Chiara Acquati, Karen Kayser
PURPOSE: The present study examined prevalence and predictors of psychological distress among cancer patients receiving care at a safety-net institution during the first year of implementation of a distress screening protocol. Differences between screened and unscreened patients were also analyzed. METHODS: Data on 182 breast and lung cancer patients who were treated at a NCI-designated Academic Comprehensive Cancer Center (ACAD) were abstracted from the patients' medical charts for a period of 1 year...
March 2, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28238592/frequency-of-carcinoid-syndrome-at-neuroendocrine-tumour-diagnosis-a-population-based-study
#10
Daniel M Halperin, Chan Shen, Arvind Dasari, Ying Xu, Yiyi Chu, Shouhao Zhou, Ya-Chen Tina Shih, James C Yao
BACKGROUND: Neuroendocrine tumours (NETs) can secrete bioactive amines into the bloodstream, causing carcinoid syndrome, with symptoms including flushing and diarrhoea. However, carcinoid syndrome frequency in the NET population has never been rigorously assessed, nor has its relationship to presenting clinicopathological characteristics. This analysis assessed the proportion of patients with NETs and carcinoid syndrome in the USA and associated clinical factors. METHODS: We identified patients (≥65 years of age) from the Surveillance, Epidemiology, and End Results-Medicare database, excluding those with pancreatic tumours or small-cell or large-cell lung cancer, as well as those without complete data...
February 23, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28220446/radionuclide-therapy-for-neuroendocrine-tumors
#11
REVIEW
Mauro Cives, Jonathan Strosberg
Peptide receptor radionuclide therapy (PRRT) is a form of systemic radiotherapy that allows targeted delivery of radionuclides to tumor cells expressing high levels of somatostatin receptors. The two radiopeptides most commonly used for PRRT, (90)Y-DOTATOC and (177)Lu-DOTATATE, have been successfully employed for more than a decade for the treatment of advanced neuroendocrine tumors (NETs). Recently, the phase III, randomized NETTER-1 trial has compared (177)Lu-DOTATATE versus high-dose octreotide LAR in patients with progressive, metastatic midgut NETs, demonstrating exceptional tolerability and efficacy...
February 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28218348/radioguided-surgery-with-radiolabeled-somatostatin-analogs-not-only-in-gep-nets
#12
REVIEW
Vincenzo Cuccurullo, Giuseppe Danilo Di Stasio, Luigi Mansi
Radioguided surgery (RGS) is a surgical technique that, using intra-operative probes, enables the surgeon to identify tissues preoperatively "marked" by a radiopharmaceutical. Somatostatin receptors (SSTRs) are present in the majority of neuroendocrine cells and may be over-expressed not only by tumor cells, but also by endothelial cells of peritumoral vessels, inflammatory cells and cells of the immune system, such as activated lymphocytes, monocytes and epithelioid cells. This extra neoplastic uptake is the rationale for the use of radiolabeled somatostatin analogs (SSAs) either in some tumors not expressing SSTRs or in various non-oncological diseases...
2017: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/28213470/higher-mini-bal-total-protein-concentration-in-early-ards-predicts-faster-resolution-of-lung-injury-measured-by-more-ventilator-free-days
#13
Carolyn M Hendrickson, Jason Abbott, Hanjing Zhuo, Kathleen D Liu, Carolyn S Calfee, Michael A Matthay
The protein concentration of alveolar edema fluid in acute respiratory distress syndrome (ARDS) is dynamic. It reflects alveolar flooding during acute injury as well as fluid and protein clearance over time. We hypothesized that among ARDS patients treated with low tidal volume ventilation, higher concentrations of protein in mini-bronchoalveolar lavage (mBAL) samples would predict slower resolution of lung injury and worse clinical outcomes. Total protein and IgM concentrations in Day 0 mBAL samples from 79 subjects enrolled in the aerosolized albuterol (ALTA) ARDS Network Albuterol trial were measured by colorimetric assay and ELISA respectively...
February 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28194370/peptide-agonists-of-vasopressin-v2-receptor-reduce-expression-of-neuroendocrine-markers-and-tumor-growth-in-human-lung-and-prostate-tumor-cells
#14
Marina Pifano, Juan Garona, Carla S Capobianco, Nazareno Gonzalez, Daniel F Alonso, Giselle V Ripoll
Neuroendocrine tumors (NETs) comprise a heterogeneous group of malignancies that express neuropeptides as synaptophysin, chromogranin A (CgA), and specific neuronal enolase (NSE), among others. Vasopressin (AVP) is a neuropeptide with an endocrine, paracrine, and autocrine effect in normal and pathological tissues. AVP receptors are present in human lung, breast, pancreatic, colorectal, and gastrointestinal tumors. While AVP V1 receptors are associated with stimulation of cellular proliferation, AVP V2 receptor (V2r) is related to antiproliferative effects...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28188029/peptidylarginine-deiminase-2-is-required-for-tumor-necrosis-factor-alpha-induced-citrullination-and-arthritis-but-not-neutrophil-extracellular-trap-formation
#15
Mandar Bawadekar, Daeun Shim, Chad J Johnson, Thomas F Warner, Ryan Rebernick, Dres Damgaard, Claus H Nielsen, Ger J M Pruijn, Jeniel E Nett, Miriam A Shelef
Citrullination, the post-translational conversion of arginines to citrullines, may contribute to rheumatoid arthritis development given the generation of anti-citrullinated protein antibodies (ACPAs). However, it is not known which peptidylarginine deiminase (PAD) catalyzes the citrullination seen in inflammation. PAD4 exacerbates inflammatory arthritis and is critical for neutrophil extracellular traps (NETs). NETs display citrullinated antigens targeted by ACPAs and thus may be a source of citrullinated protein...
February 7, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28182854/anti-citrullinated-protein-antibodies-are-associated-with-neutrophil-extracellular-traps-in-the-sputum-in-relatives-of-rheumatoid-arthritis-patients
#16
M Kristen Demoruelle, Kylie K Harrall, Linh Ho, Monica M Purmalek, Nickie L Seto, Heather M Rothfuss, Michael H Weisman, Joshua J Solomon, Aryeh Fischer, Yuko Okamoto, Lindsay B Kelmenson, Mark C Parish, Marie Feser, Chelsie Fleischer, Courtney Anderson, Michael Mahler, Jill M Norris, Mariana J Kaplan, Brian D Cherrington, V Michael Holers, Kevin D Deane
OBJECTIVES: Studies suggest that rheumatoid arthritis (RA)-related autoimmunity is initiated at a mucosal site. However, the factors associated with the mucosal generation of this autoimmunity are unknown, especially in individuals who are at-risk for future RA. Therefore, we tested anti-cyclic citrullinated peptide (anti-CCP) antibodies in the sputum of RA-free first-degree relatives (FDRs) of RA patients and patients with classifiable RA. METHODS: We evaluated induced sputum and serum from 67 FDRs and 20 RA subjects for anti-CCP-IgA and anti-CCP-IgG, with cut-off levels for positivity determined in a control population...
February 9, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28179435/protean-proteases-at-the-cutting-edge%C3%A2-of%C3%A2-lung-diseases
#17
Clifford Taggart, Marcus A Mall, Gilles Lalmanach, Didier Cataldo, Andreas Ludwig, Sabina Janciauskiene, Nicole Heath, Silke Meiners, Christopher M Overall, Carsten Schultz, Boris Turk, Keren S Borensztajn
Proteases were traditionally viewed as mere protein-degrading enzymes with a very restricted spectrum of substrates. A major expansion in protease research has uncovered a variety of novel substrates, and it is now evident that proteases are critical pleiotropic actors orchestrating pathophysiological processes. Recent findings evidenced that the net proteolytic activity also relies upon interconnections between different protease and protease inhibitor families in the protease web.In this review, we provide an overview of these novel concepts with a particular focus on pulmonary pathophysiology...
February 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28154019/mib-1-index-stratified-assessment-of-dual-tracer-pet-ct-with-68-ga-dotatate-and-18-f-fdg-and-multimodality-anatomic-imaging-in-metastatic-neuroendocrine-tumors-of-unknown-primary-in-a-prrt-workup-setting
#18
Nikita Sampathirao, Sandip Basu
Our aim was to comparatively assess dual-tracer PET/CT ((68)Ga-DOTATATE and (18)F-FDG) and multimodality anatomic imaging in studying metastatic neuroendocrine tumors (NETs) of unknown primary (CUP-NETs) scheduled for peptide receptor radionuclide therapy for divergence of tracer uptake on dual-tracer PET/CT, detection of primary, and overall lesion detection vis-a-vis tumor proliferation index (MIB-1/Ki-67). Methods: Fifty-one patients with CUP-NETs (25 men, 26 women; age, 22-74 y), histopathologically proven and thoroughly investigated with conventional imaging modalities (ultrasonography, CT/contrast-enhanced CT, MRI, and endoscopic ultrasound, wherever applicable), were retrospectively analyzed...
March 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28148896/investigated-the-safety-of-intra-renal-arterial-transfusion-of-autologous-cd34-cells-and-time-courses-of-creatinine-levels-endothelial-dysfunction-biomarkers-and-micro-rnas-in-chronic-kidney-disease-patients-phase-i-clinical-trial
#19
Mel S Lee, Fan-Yen Lee, Yung-Lung Chen, Pei-Hsun Sung, Hsin-Ju Chiang, Kuan-Hung Chen, Tien-Hung Huang, Yi-Ling Chen, John Y Chiang, Tsung-Cheng Yin, Hsueh-Wen Chang, Hon-Kan Yip
This was a phase I clinical trial to investigate the safety of autologous peripheral-blood-derived CD34+ cell therapy for patients with chronic kidney disease (CKD-treatment) (i.e., at Stages III and IV). Between November 2014 and October 2015, a total of 10 study patients were prospectively enrolled into this phase I trial. Patients who failed to enroll into the trial in the initial state of eligibility assessment were served as CKD-control group (n = 9). The health-control group was composed of 10 volunteers for the purposes of comparing (1) circulation level of endothelial progenitor cells (EPCs), (2) angiogenesis ability, and (3) anti-apoptotic miRNAs between healthy subjects and CKD patients...
January 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28138033/targeted-treatment-of-metastatic-breast-cancer-by-plk1-sirna-delivered-by-an-antioxidant-nanoparticle-platform
#20
Jingga Morry, Worapol Ngamcherdtrakul, Shenda Gu, Moataz Reda, David J Castro, Thanapon Sangvanich, Joe W Gray, Wassana Yantasee
Metastatic breast cancer is developed in about 20-30% of newly diagnosed early stage breast cancer patients despite treatments. Herein, we report a novel nanoparticle platform with intrinsic anti-metastatic properties for the targeted delivery of Polo-like kinase 1 siRNA (siPLK1). We first evaluated it in a triple negative breast cancer (TNBC) model, which shows high metastatic potential. PLK1 was identified as the top therapeutic target for TNBC cells and tumor initiating cells in a kinome-wide screen. The platform consists of a 50-nm mesoporous silica nanoparticle (MSNP) core coated layer-by-layer with bioreducible cross-linked PEI and PEG polymers, conjugated with an antibody for selective uptake into cancer cells...
January 30, 2017: Molecular Cancer Therapeutics
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