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https://www.readbyqxmd.com/read/28431920/the-microbiome-in-anti-cancer-therapy
#1
REVIEW
Stavros Bashiardes, Timur Tuganbaev, Sara Federici, Eran Elinav
The commensal microbiome constitutes an important modulator of host physiology and risk of disease, including cancer development and progression. Lately, the microbiome has been suggested to modulate the efficacy of anti-cancer treatment. Examples include chemotherapy and total body irradiation-induced barrier function disruption, leading to microbial efflux that drives activation of anti-tumorigenic T cells; Microbiome-driven release of reactive oxygen species contributing to the efficacy of platinum salts; and microbiome-induced immune priming promoting the anti-tumor effects of alkylating chemotherapy and immune checkpoint inhibitors...
April 18, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28430711/evaluation-of-kdr-rs34231037-as-a-predictor-of-sunitinib-efficacy-in-patients-with-metastatic-renal-cell-carcinoma
#2
María Apellániz-Ruiz, Meta H Diekstra, Juan M Roldán, Epie Boven, Daniel Castellano, Hans Gelderblom, Ron H J Mathijssen, Jesse J Swen, Stefan Böhringer, Jesús García-Donás, Brian I Rini, Henk-Jan Guchelaar, Cristina Rodríguez-Antona
The identification of biomarkers able to predict clinical benefit from vascular endothelial growth factor receptor (VEGFR) tyrosine kinase inhibitors is urgently needed. Recently, Maitland and colleagues described an association between KDR-rs34231037 and soluble VEGFR2 levels as well as pazopanib pharmacodynamics. We investigated in a well-characterized series of metastatic clear cell renal cell carcinoma patients whether rs34231037 could influence sunitinib response. Clinical data and DNA were available from an international series of 276 patients...
April 20, 2017: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/28430623/clinical-efficacy-of-icotinib-in-lung-cancer-patients-with-different-egfr-mutation-status-a-meta-analysis
#3
REVIEW
Jian Qu, Ya-Nan Wang, Ping Xu, Da-Xiong Xiang, Rui Yang, Wei Wei, Qiang Qu
Icotinib is a novel and the third listed epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs), which exerts a good anti-tumor efficacy on non-small cell lung cancer (NSCLC). The efficacy of EGFR-TKIs has been shown to be associated with the EGFR mutation status, especially exon 19 deletion (19Del) and exon 21 L858R mutation. Therefore, a meta-analysis was performed to assess the efficacy of icotinib in NSCLC patients harboring EGFR mutations (19Del or L858R) and wild type (19Del and L858R loci wild type)...
February 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430586/epidermal-growth-factor-receptor-egfr-a-rising-star-in-the-era-of-precision-medicine-of-lung-cancer
#4
REVIEW
Xiaomin Liu, Ping Wang, Caiyan Zhang, Zhongliang Ma
Lung cancer is a leading cause of cancer mortality worldwide. In tumors, the important role of noncoding RNA regulatory networks has been more and more reveal. EGFR has been identified as an oncogenic driver of NSCLC, especially activating mutations EGFR and its inhibition with specific TKIs can generate dramatic tumor responses. Studies have shown that EGFR plays significant roles in the progression of NSCLC. Subset analysis of the small proportion of patients with EGFR-mutant lung cancer showed a disease-free survival benefit, but was underpowered to detect a survival advantage...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429765/repolarizing-macrophages-improves-breast-cancer-therapy
#5
Luca Cassetta, Jeffrey W Pollard
Tumor-associated macrophages (TAMs) contribute to breast cancer progression and dissemination; TAM-targeting strategies aimed at their reprogramming show promising preclinical results. In a new report Guerriero and colleagues demonstrate that a novel HDAC Class IIa inhibitor, TMP195, can reprogram monocytes and macrophages in the tumor into cells able to sustain a robust CD8 T cell-mediated anti-tumoral immune response.
April 21, 2017: Cell Research
https://www.readbyqxmd.com/read/28429305/the-role-of-macrolides-in-chronic-rhinosinusitis-crssnp-and-crswnp
#6
REVIEW
Gretchen M Oakley, Richard J Harvey, Valerie J Lund
PURPOSE OF REVIEW: We assess the literature on the pharmacokinetics, indications, important considerations, and effectiveness of long-term, low-dose macrolide antibiotics in chronic rhinosinusitis (CRS). RECENT FINDINGS: The key to effective implementation of macrolide therapy in CRS is appropriate patient selection. Macrolides have demonstrated the most benefit in Th1-mediated non-eosinophilic CRS when used for durations of at least 3 months. Macrolide antibiotics have demonstrated great benefit when used for their anti-inflammatory or immunomodulatory properties, which include the blockage of pro-inflammatory cytokines, such as interleukin (IL)-8 and tumor necrosis factor-α (TNF-α)...
May 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28428883/response-after-treatment-with-pembrolizumab-in-a-patient-with-myelophthisis-due-to-melanoma-the-role-of-checkpoint-inhibition-in-the-bone
#7
Samuel Rosner, Filiz Sen, Michael Postow
BACKGROUND: Myelophthisis due to melanoma is a rare phenomenon. Treatment strategies for patients with this serious complication of malignancy have not been well documented, and none have previously reported efficacy of immune checkpoint inhibition. Since bone metastases are not measurable lesions per standard response criteria, the efficacy of immune checkpoint inhibition in the bones is also not well described. CASE PRESENTATION: We describe a patient with widespread melanoma metastases involving the bone marrow causing myelophthisis and pancytopenia who responded to immune checkpoint inhibition with the anti-programmed cell death-1 (PD-1) inhibitor pembrolizumab...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28428881/nano-pulse-stimulation-is-a-physical-modality-that-can-trigger-immunogenic-tumor-cell-death
#8
Richard Nuccitelli, Amanda McDaniel, Snjezana Anand, John Cha, Zachary Mallon, Jon Casey Berridge, Darrin Uecker
BACKGROUND: We have been developing a non-thermal, drug-free tumor therapy called Nano-Pulse Stimulation (NPS) that delivers ultrashort electric pulses to tumor cells which eliminates the tumor and inhibits secondary tumor growth. We hypothesized that the mechanism for inhibiting secondary tumor growth involves stimulating an adaptive immune response via an immunogenic form of apoptosis, commonly known as immunogenic cell death (ICD). ICD is characterized by the emission of danger-associated molecular patterns (DAMPs) that serve to recruit immune cells to the site of the tumor...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28428688/modulation-of-angiogenesis-proliferative-response-and-apoptosis-by-%C3%AE-sitosterol-in-rat-model-of-renal-carcinogenesis
#9
Ramalingam Sharmila, Ganapathy Sindhu
As expanded understanding of molecular tumor characteristics, which drive renal cancer growth and progression gives a promising future for renal carcinoma therapy. The objective of the present study was designed to examine the effect of β-sitosterol on a rat model of experimental renal carcinogenesis. Renal carcinogenesis was induced in rats treated with N-diethylnitrosamine (DEN; 200 mg/kg bw single i.p., injection) and ferric nitrilotriacetate (Fe-NTA; 9 mg Fe/kg bw i.p., twice a week for 16 weeks). β-sitosterol pretreatment (20 mg/kg bw in 0...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28428205/measurable-supratentorial-white-matter-volume-changes-in-patients-with-diffuse-intrinsic-pontine-glioma-treated-with-an-anti-vascular-endothelial-growth-factor-agent-steroids-and-radiation
#10
P Svolos, W E Reddick, A Edwards, A Sykes, Y Li, J O Glass, Z Patay
BACKGROUND AND PURPOSE: Assessing the response to treatment in infiltrative brain tumors by using lesion volume-based response criteria is challenging. We hypothesized that in such tumors, volume measurements alone may not accurately capture changes in actual tumor burden during treatment. We longitudinally evaluated volume changes in both normal-appearing supratentorial white matter and the brain stem lesions in patients treated for diffuse intrinsic pontine glioma to determine to what extent adjuvant systemic therapies may skew the accuracy of tumor response assessments based on volumetric analysis...
April 20, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28428193/pd-l1-expression-in-melanoma-a-quantitative-immunohistochemical-antibody-comparison
#11
Joel C Sunshine, Peter Nguyen, Genevieve Kaunitz, Tricia Cottrell, Sneha Berry, Jessica Esandrio, Haiying Xu, Aleksandra Ogurtsova, Karen R Bleich, Toby C Cornish, Evan J Lipson, Robert A Anders, Janis Taube
PD-L1 expression in the pre-treatment tumor microenvironment enriches for response to anti-PD-1/PD-L1 therapies. The purpose of this study was to quantitatively compare the performance of five monoclonal anti-PD-L1 antibodies used in recent landmark publications.  <br /><br />Experimental Design: PD-L1 immunohistochemistry (IHC) was performed on thirty-four formalin-fixed paraffin-embedded archival melanoma samples using the 5H1, SP142, 28-8, 22C3 and SP263 clones.  The percentage of total cells (including melanocytes and immune cells) demonstrating cell surface PD-L1 staining, as well as intensity measurements/H-scores, were assessed for each melanoma specimen using a computer-assisted platform...
April 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28426875/bisphenol-a-activates-egfr-and-erk-promoting-proliferation-tumor-spheroid-formation-and-resistance-to-egfr-pathway-inhibition-in-estrogen-receptor-negative-inflammatory-breast-cancer-cells
#12
Scott J Sauer, Michael Tarpley, Imran Shah, Akshay V Save, H Kim Lyerly, Steven R Patierno, Kevin P Williams, Gayathri R Devi
Emerging evidence from epidemiological studies suggests a link between environmental chemical exposure and progression of aggressive breast cancer subtypes. Of all clinically distinct types of breast cancers, the most lethal phenotypic variant is inflammatory breast cancer (IBC). Overexpression of epidermal growth factor receptors (EGFR/HER2) along with estrogen receptor (ER) negativity is common in IBC tumor cells, which instead of a solid mass present as rapidly proliferating diffuse tumor cell clusters. Our previous studies have demonstrated a role of an adaptive response of increased antioxidants in acquired resistance to EGFR-targeting drugs in IBC...
March 1, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28426120/a-phase-ii-study-of-a-human-anti-pdgfr%C3%AE-monoclonal-antibody-olaratumab-imc-3g3-in-previously-treated-patients-with-metastatic-gastrointestinal-stromal-tumors
#13
A J Wagner, H Kindler, H Gelderblom, P Schöffski, S Bauer, P Hohenberger, H-G Kopp, J A Lopez-Martin, M Peeters, P Reichardt, A Qin, J Nippgen, R L Ilaria, P Rutkowski
Background: This study evaluated tumor response to olaratumab (an anti-PDGFRα monoclonal antibody) in previously treated patients with metastatic gastrointestinal stromal tumor (GIST) with or without PDGFRα mutations (cohorts 1 and 2, respectively). Patients and methods: Patients received olaratumab 20 mg/kg intravenously every 14 days until disease progression, death, or intolerable toxicity occurred. Outcome measures were 12-week tumor response, progression-free survival (PFS), overall survival (OS), and safety...
March 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28425987/biological-activity-of-tumor-treating-fields-in-preclinical-glioma-models
#14
Manuela Silginer, Michael Weller, Roger Stupp, Patrick Roth
Glioblastoma is the most common and aggressive form of intrinsic brain tumor with a very poor prognosis. Thus, novel therapeutic approaches are urgently needed. Tumor-treating fields (TTFields) may represent such a novel treatment option. The aim of this study was to investigate the effects of TTFields on glioma cells, as well as the functional characterization of the underlying mechanisms. Here, we assessed the anti-glioma activity of TTFields in several preclinical models. Applying TTFields resulted in the induction of cell death in a frequency- and intensity-dependent manner in long-term glioma cell lines, as well as glioma-initiating cells...
April 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28425751/development-of-red-blood-cell-autoantibodies-following-treatment-with-checkpoint-inhibitors-a-new-class-of-anti-neoplastic-immunotherapeutic-agents-associated-with-immune-dysregulation
#15
Laura L Cooling, John Sherbeck, Jonathon C Mowers, Sheri L Hugan
Ipilimumab, nivolumab, and pembrolizumab represent a new class of immunotherapeutic drugs for treating patients with advanced cancer. Known as checkpoint inhibitors, these drugs act to upregulate the cellular and humoral immune response to tumor antigens by inhibiting T-cell autoregulation. As a consequence, they can be associated with immune-related adverse events (irAEs) due to loss of self-tolerance, including rare cases of immune-related cytopenias. We performed a retrospective clinical chart review, including serologic, hematology, and chemistry laboratory results, of two patients who developed red blood cell (RBC) autoantibodies during treatment with a checkpoint inhibitor...
January 2017: Immunohematology
https://www.readbyqxmd.com/read/28425263/combination-therapy-with-dendritic-cell-based-vaccine-and-anti-cd69-antibody-enhances-antitumor-efficacy-in-renal-cell-carcinoma-bearing-mice
#16
Si-Ming Wei, Hang-Li Pan, Li Wang, Guo-Li Yin, Kai Zhong, Ya Zhou, Shu-Jiao Yang, Zhao-Liang Xin
BACKGROUND/AIM: Dendritic cell-based vaccine therapy for renal cell carcinoma is effective but requires improvement. Here we explored whether combination therapy with dendritic cell-based vaccine and anti-CD69 antibody can enhance antitumor efficacy in renal cell carcinoma-bearing mice. MATERIALS AND METHODS: Balb/c mice were challenged subcutaneously with murine renal cell carcinoma (Renca) cells. On day 3 after tumor cell inoculation, tumor-bearing mice either were left untreated or were treated with Renca tumor lysate-pulsed dendritic cells (i...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424411/migration-pattern-actin-cytoskeleton-organization-and-response-to-pi3k-mtor-and-hsp90-inhibition-of-glioblastoma-cells-with-different-invasive-capacities
#17
Simon Memmel, Dmitri Sisario, Caren Zöller, Vanessa Fiedler, Astrid Katzer, Robin Heiden, Nicholas Becker, Lorenz Eing, Fábio L R Ferreira, Heiko Zimmermann, Markus Sauer, Michael Flentje, Vladimir L Sukhorukov, Cholpon S Djuzenova
High invasiveness and resistance to chemo- and radiotherapy of glioblastoma multiforme (GBM) make it the most lethal brain tumor. Therefore, new treatment strategies for preventing migration and invasion of GBM cells are needed. Using two different migration assays, Western blotting, conventional and super-resolution (dSTORM) fluorescence microscopy we examine the effects of the dual PI3K/mTOR-inhibitor PI-103 alone and in combination with the Hsp90 inhibitor NVP-AUY922 and/or irradiation on the migration, expression of marker proteins, focal adhesions and F-actin cytoskeleton in two GBM cell lines (DK-MG and SNB19) markedly differing in their invasive capacity...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424084/durable-complete-remission-with-aromatase-inhibitor-therapy-in-a-patient-with-metastatic-uterine-carcinosarcoma-with-poor-performance-status-and-coagulation-disorders-a-case-report
#18
P Martin-Romano, M Jurado, M A Idoate, L Arbea, J L Hernandez-Lizoain, D Cano, J A Paramo, S Martin-Algarra
BACKGROUND: Chemotherapy is considered the most appropriate treatment for metastatic uterine sarcoma, despite its limited efficacy. No other treatment has been conclusively proved to be a real alternative, but some reports suggest that anti-hormonal therapy could be active in a small subset of patients. We report the case of a patient with metastatic uterine carcinosarcoma with positive hormonal receptors and a complete pathological response. CASE PRESENTATION: A 54-year-old white woman presented to our emergency room with hypovolemic shock and serious vaginal bleeding...
April 19, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28423708/targeting-the-centriolar-replication-factor-stil-synergizes-with-dna-damaging-agents-for-treatment-of-ovarian-cancer
#19
Noa Rabinowicz, Lingegowda S Mangala, Kevin R Brown, Cintia Checa-Rodriguez, Asher Castiel, Oren Moskovich, Giulia Zarfati, Luba Trakhtenbrot, Adva Levy-Barda, Dahai Jiang, Cristian Rodriguez-Aguayo, Sunila Pradeep, Yael van Praag, Gabriel Lopez-Berestein, Ahuvit David, Ilya Novikov, Pablo Huertas, Robert Rottapel, Anil K Sood, Shai Izraeli
Advanced ovarian cancer is an incurable disease. Thus, novel therapies are required. We wished to identify new therapeutic targets for ovarian cancer. ShRNA screen performed in 42 ovarian cancer cell lines identified the centriolar replication factor STIL as an essential gene for ovarian cancer cells. This was verified in-vivo in orthotopic human ovarian cancer mouse models. STIL depletion by administration of siRNA in neutral liposomes resulted in robust anti-tumor effect that was further enhanced in combination with cisplatin...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423693/enhanced-anti-tumor-therapeutic-efficacy-of-dna-vaccine-by-fusing-the-e7-gene-to-baff-in-treating-human-papillomavirus-associated-cancer
#20
Chao-Chih Wu, Fang-Cih Wu, Yun-Tin Hsu, Yu-Chia Hsiao, Yuh-Cheng Yang, C Allen Chang, Chih-Long Chang
B-cell-activating factor (BAFF) belongs to the tumor necrosis factor family that not only stimulates B and T cells but also counteracts immune tolerance. BAFF is also a type II membrane protein, which is secreted through the endoplasmic reticulum (ER)-Golgi apparatus pathway. Fusing an antigen to BAFF might enhance the presentation of major histocompatibility complex class I molecules. These characteristics represent an opportunity to enhance the antitumor effects of DNA vaccines. Therefore, we fused BAFF to human papillomavirus type 16 E7 as a DNA vaccine and evaluated its antitumor effects...
March 9, 2017: Oncotarget
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