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https://www.readbyqxmd.com/read/28449470/impact-of-cyclooxygenase-2-and-prostaglandin-e2-expression-on-clinical-outcome-after-pulmonary-metastasectomy
#1
Christian Lang, Emilie Hrdliczka, Thomas Schweiger, Olaf Glueck, Gerrit Lewik, Stefan Schwarz, Alberto Benazzo, György Lang, Walter Klepetko, Konrad Hoetzenecker
BACKGROUND: Pulmonary metastasectomy (PM) is a standard procedure in the treatment of stage IV colorectal cancer (CRC). In most centers the indication for PM is solely based on clinical factors without taking the tumor biology into account. This results in diverse outcomes ranging from long-term remission to early recurrence. Inflammation is considered a hallmark of cancer development and progression. On the other hand the accessibility of CRC cells to the immune system reflects the grade of tumor aggressiveness...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28448962/progressive-changes-in-non-coding-rna-profile-in-leucocytes-with-age
#2
Maider Muñoz-Culla, Haritz Irizar, Ana Gorostidi, Ainhoa Alberro, Iñaki Osorio-Querejeta, Javier Ruiz-Martínez, Javier Olascoaga, Adolfo López de Munain, David Otaegui
It has been observed that immune cell deterioration occurs in the elderly, as well as a chronic low-grade inflammation called inflammaging. These cellular changes must be driven by numerous changes in gene expression and in fact, both protein-coding and non-coding RNA expression alterations have been observed in peripheral blood mononuclear cells from elder people. In the present work we have studied the expression of small non-coding RNA (microRNA and small nucleolar RNA -snoRNA-) from healthy individuals from 24 to 79 years old...
April 27, 2017: Aging
https://www.readbyqxmd.com/read/28448874/regulation-and-roles-of-cd26-dppiv-in-hematopoiesis-and-diseases
#3
REVIEW
Zeynab Aliyari Serej, Abbas Ebrahimi Kalan, Ahmad Mehdipour, Hojjatollah Nozad Charoudeh
Dipeptidyl peptidase IV (DPPIV),(1) on the surface of certain cells, where it is also referred to as CD26, is involved in a vast majority of biological and pathological processes. CD26/DPPIV function contributes to cancer and tumor metastasis as well as inhibition of its expression which alters the expression of immune response-related genes. CD26/DPPIV is a widely distributed multifunctional integral membrane and secreted protein that is defined as early predictive biomarker in HIV, cancer and autoimmunity diseases like diabetes and multiple sclerosis...
April 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28448627/engineering-chimeric-human-and-mouse-major-histocompatibility-complex-mhc-class-i-tetramers-for-the-production-of-t-cell-receptor-tcr-mimic-antibodies
#4
Demin Li, Carol Bentley, Jenna Yates, Maryam Salimi, Jenny Greig, Sarah Wiblin, Tasneem Hassanali, Alison H Banham
Therapeutic monoclonal antibodies targeting cell surface or secreted antigens are among the most effective classes of novel immunotherapies. However, the majority of human proteins and established cancer biomarkers are intracellular. Peptides derived from these intracellular proteins are presented on the cell surface by major histocompatibility complex class I (MHC-I) and can be targeted by a novel class of T-cell receptor mimic (TCRm) antibodies that recognise similar epitopes to T-cell receptors. Humoural immune responses to MHC-I tetramers rarely generate TCRm antibodies and many antibodies recognise the α3 domain of MHC-I and β2 microglobulin (β2m) that are not directly involved in presenting the target peptide...
2017: PloS One
https://www.readbyqxmd.com/read/28448494/integrin-%C3%AE-1-activation-induces-an-anti-melanoma-host-response
#5
Laila Ritsma, Ipsita Dey-Guha, Nilesh Talele, Xavier Sole, Salony, Joeeta Chowdhury, Kenneth N Ross, Sridhar Ramaswamy
TGF-β is a cytokine thought to function as a tumor promoter in advanced malignancies. In this setting, TGF-β increases cancer cell proliferation, survival, and migration, and orchestrates complex, pro-tumorigenic changes in the tumor microenvironment. Here, we find that in melanoma, integrin β1-mediated TGF-β activation may also produce tumor suppression via an altered host response. In the A375 human melanoma cell nu/nu xenograft model, we demonstrate that cell surface integrin β1-activation increases TGF-β activity, resulting in stromal activation, neo-angiogenesis and, unexpectedly for this nude mouse model, increase in the number of intra-tumoral CD8+ T lymphocytes within the tumor microenvironment...
2017: PloS One
https://www.readbyqxmd.com/read/28447729/effects-of-endoplasmic-reticulum-stress-on-apoptosis-induction-in-radioresistant-macrophages
#6
Hironori Yoshino, Yu Kumai, Ikuo Kashiwakura
Macrophages are important in the host's immune defense against pathogens. However, recent evidence has demonstrated that macrophages are also involved in the development of disease, including cancer. Therefore, it is important to regulate apoptosis in tumor‑related macrophages for effective cancer treatment. In the present study, the effect of endoplasmic reticulum (ER) stress on apoptosis induction was examined in human monocytic cell‑derived macrophages. Radiation therapy in cancer results in irradiating macrophages as well as cancer cells in the tumor microenvironment...
March 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447602/spatial-computation-of-intratumoral-t-cells-correlates-with-survival-of-patients-with-pancreatic-cancer
#7
Julienne L Carstens, Pedro Correa de Sampaio, Dalu Yang, Souptik Barua, Huamin Wang, Arvind Rao, James P Allison, Valerie S LeBleu, Raghu Kalluri
The exact nature and dynamics of pancreatic ductal adenocarcinoma (PDAC) immune composition remains largely unknown. Desmoplasia is suggested to polarize PDAC immunity. Therefore, a comprehensive evaluation of the composition and distribution of desmoplastic elements and T-cell infiltration is necessary to delineate their roles. Here we develop a novel computational imaging technology for the simultaneous evaluation of eight distinct markers, allowing for spatial analysis of distinct populations within the same section...
April 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28447368/optimization-of-aqueous-extraction-and-biological-activity-of-harpagophytum-procumbens-root-on-ex-vivo-rat-colon-inflammatory-model
#8
Marcello Locatelli, Claudio Ferrante, Simone Carradori, Daniela Secci, Lidia Leporini, Annalisa Chiavaroli, Sheila Leone, Lucia Recinella, Giustino Orlando, Sara Martinotti, Luigi Brunetti, Michele Vacca, Luigi Menghini
Harpagophytum procumbens has a long story of use for the treatment of inflammatory diseases. Considering both the antiinflammatory effects of H. procumbens in multiple tissues and the stability of harpagoside in artificial intestinal fluid, the aim of the present study was to explore the possible protective role of a microwave-assisted aqueous Harpagophytum extract (1-1000 μg/mL) on mouse myoblast C2C12 and human colorectal adenocarcinoma HCT116 cell lines, and isolated rat colon specimens challenged with lipopolysaccharide (LPS), a validated ex vivo model of acute ulcerative colitis...
April 26, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28447210/mitf-suppression-by-ch5552074-inhibits-cell-growth-in-melanoma-cells
#9
Satoshi Aida, Yukiko Sonobe, Munehiro Yuhki, Kiyoaki Sakata, Toshihiko Fujii, Hiroshi Sakamoto, Takakazu Mizuno
PURPOSE: Although treatment of melanoma with BRAF inhibitors and immune checkpoint inhibitors achieves a high response rate, a subset of melanoma patients with intrinsic and acquired resistance are insensitive to these therapeutics, so to improve melanoma therapy other target molecules need to be found. Here, we screened our chemical library to identify an anti-melanoma agent and examined its action mechanisms to show cell growth inhibition activity. METHODS: We screened a chemical library against multiple skin cancer cell lines and conducted ingenuity pathway analysis (IPA) to investigate the mechanisms of CH5552074 activity...
April 26, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28447025/metabolic-cooperation-and-competition-in-the-tumor-microenvironment-implications-for-therapy
#10
REVIEW
Seema Gupta, Amrita Roy, Bilikere S Dwarakanath
The tumor microenvironment (TME) is an ensemble of non-tumor cells comprising fibroblasts, cells of the immune system, and endothelial cells, besides various soluble secretory factors from all cellular components (including tumor cells). The TME forms a pro-tumorigenic cocoon around the tumor cells where reprogramming of the metabolism occurs in tumor and non-tumor cells that underlies the nature of interactions as well as competitions ensuring steady supply of nutrients and anapleoretic molecules for the tumor cells that fuels its growth even under hypoxic conditions...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28447005/future-directions-in-esophageal-cancer-therapy
#11
Ori Wald, Brandon Smaglo, Henry Mok, Shawn S Groth
Resection techniques for esophageal carcinoma continue to evolve, from endoscopic mucosal resection or endoscopic submucosal dissection for early stage disease to standard and robot-assisted minimally invasive esophagectomy as part of multimodal therapy for locally advanced disease. Though currently limited to assessing conduit perfusion and sentinel lymph nodes, embedded technology in the robotic surgical platform will likely play an expanded role during esophagectomy in the future. The use of targeted therapies, checkpoint inhibitors, engineered immune cell therapy, and cancer vaccines show promise in the treatment of systemic disease...
March 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28446981/role-of-cxc-group-chemokines-in-lung-cancer-development-and-progression
#12
Artjoms Spaks
BACKGROUND: Clinical and translational research on lung cancer patients undergoing surgical treatment can provide valuable scientific data and unique opportunity to study tumor microenvironment. CXC chemokines, which are members of a big family of cytokines, are undoubtedly involved in tumor growth regulation and metastasizing pathways. For better understanding of CXC chemokine involvement in the process of carcinogenesis we have studied the cohort of early stage non-small cell lung cancer patients undergoing surgery with curative intent...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28446910/are-mast-cells-masters-in-cancer
#13
REVIEW
Gilda Varricchi, Maria Rosaria Galdiero, Stefania Loffredo, Giancarlo Marone, Raffaella Iannone, Gianni Marone, Francescopaolo Granata
Prolonged low-grade inflammation or smoldering inflammation is a hallmark of cancer. Mast cells form a heterogeneous population of immune cells with differences in their ultra-structure, morphology, mediator content, and surface receptors. Mast cells are widely distributed throughout all tissues and are stromal components of the inflammatory microenvironment that modulates tumor initiation and development. Although canonically associated with allergic disorders, mast cells are a major source of pro-tumorigenic (e...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28446731/the-antigenic-identity-of-human-class-i-mhc-phosphopeptides-is-critically-dependent-upon-phosphorylation-status
#14
Fiyaz Mohammed, Daniel H Stones, Angela L Zarling, Carrie R Willcox, Jeffrey Shabanowitz, Kara L Cummings, Donald F Hunt, Mark Cobbold, Victor H Engelhard, Benjamin E Willcox
Dysregulated post-translational modification provides a source of altered self-antigens that can stimulate immune responses in autoimmunity, inflammation, and cancer. In recent years, phosphorylated peptides have emerged as a group of tumour-associated antigens presented by MHC molecules and recognised by T cells, and represent promising candidates for cancer immunotherapy. However, the impact of phosphorylation on the antigenic identity of phosphopeptide epitopes is unclear. Here we examined this by determining structures of MHC-bound phosphopeptides bearing canonical position 4-phosphorylations in the presence and absence of their phosphate moiety, and examining phosphopeptide recognition by the T cell receptor (TCR)...
April 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28446466/landscape-of-combination-immunotherapy-and-targeted-therapy-to-improve-cancer-management
#15
Leandro M Colli, Mitchell J Machiela, Han Zhang, Timothy Myers, Lea Jessop, Olivier Delattre, Kai Yu, Stephen J Chanock
Cancer treatments composed of immune checkpoint inhibitors and oncogene-targeted drugs might improve cancer management, but there has been little investigation of their combined potential as yet. To estimate the fraction of cancer cases that might benefit from such combination therapy, we conducted an exploratory study of cancer genomic data sets to determine the proportion with somatic mutation profiles amenable to either immunotherapy or targeted therapy. We surveyed 13,349 genomic profiles from public databases for cases with specific mutations targeted by current agents or a burden of exome-wide non-synonymous mutations (NsM) that exceeds a proposed threshold for response to checkpoint inhibitors...
April 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/28446465/deletion-of-lactate-dehydrogenase-a-in-myeloid-cells-triggers-antitumor-immunity
#16
Pankaj Seth, Eva Csizmadia, Andreas Hedblom, Marta Vuerich, Han Xie, Mailin Li, Maria Serena Longhi, Barbara Wegiel
Immunometabolism is emerging as a critical determinant of cancer pathophysiology. In this study, we explored the contributions of macrophage-expressed lactate dehydrogenase-A (LDH-A) to tumor formation in a K-Ras murine model of lung carcinoma. Myeloid-specific deletion of LDH-A promoted accumulation of macrophages with a CD86high and MCP-1high M1-like phenotype that suppressed tumor growth. This phenotypic effect was accompanied by reduced VEGF expression and angiogenesis; diminished numbers of PD-L1+ cancer cells; increased numbers of CD3+ T cells and activation status of CD8+ T cells...
April 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/28446311/-establishment-of-double-antibody-sandwich-elisa-for-the-determination-of-human-soluble-ve-cadherin-in-human-plasma-and-its-application
#17
Jie Ding, Yang He, Jian-Feng Yang, Bin Zuo, Bing-Hua Yang, Chang-Geng Ruan
OBJECTIVE: To establish double antibody sandwich enzyme-linked immunosorbent assay (ELISA) for the determination of human soluble VE-cadherin in human plasma and to investigate its value in clinical use. METHODS: The monoclonal antibodies against human VE-cadherin were prepared from BALB/c mice immunized with prokaryotic expression recombinant proteins, and the best combination of double antibodies was selected by checkerboard titration method. Double antibody sandwich ELISA for the determination of human VE-cadherin was established by using HRP-labeled McAb as a detection antibody and a capture antibody...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28446063/synthetic-immunology-hacking-immune-cells-to-expand-their-therapeutic-capabilities
#18
Kole T Roybal, Wendell A Lim
The ability of immune cells to survey tissues and sense pathologic insults and deviations makes them a unique platform for interfacing with the body and disease. With the rapid advancement of synthetic biology, we can now engineer and equip immune cells with new sensors and controllable therapeutic response programs to sense and treat diseases that our natural immune system cannot normally handle. Here we review the current state of engineered immune cell therapeutics and their unique capabilities compared to small molecules and biologics...
April 26, 2017: Annual Review of Immunology
https://www.readbyqxmd.com/read/28446053/immunotherapy-for-the-treatment-of-breast-cancer
#19
Mariela A Moreno Ayala, Maria Florencia Gottardo, Antonela S Asad, Camila Zuccato, Alejandro Nicola, Adriana Seilicovich, Marianela Candolfi
Introduction Breast cancer is the most common cancer as well as the highest cause of death by cancer in women worldwide. Although routine treatment improves the outcome of early stage breast cancer patients, there is no effective therapy for the disseminated disease. Immunotherapy has emerged as a powerful therapeutic strategy for the treatment of many cancers. Although traditionally conceived as a non-immunogenic tumor, breast cancer is now considered a potential target for immunotherapy. Areas covered In this review, the authors discuss different immunotherapeutic strategies that are currently being tested for the treatment of breast cancer: These strategies include: (i) the blockade of immunological checkpoints, (ii) antitumor vaccines, (iii) adoptive T-cell transfer therapy, and (iv) adoptive immunotherapy with monoclonal antibodies...
April 27, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28445977/serglycin-as-a-potential-biomarker-for-glioma-association-of-serglycin-expression-extent-of-mast-cell-recruitment-and-glioblastoma-progression
#20
Ananya Roy, Sanaz Attarha, Holger Weishaupt, Per-Henrik Edqvist, Fredrik J Swartling, Michael Bergqvist, Florian A Siebzehnrubl, Anja Smits, Fredrik Pontén, Elena Tchougounova
Serglycin is an intracellular proteoglycan with a unique ability to adopt highly divergent structures by glycosylation with variable types of glycosaminoglycans (GAGs) when expressed by different cell types. Serglycin is overexpressed in aggressive cancers suggesting its protumorigenic role. In this study, we explored the expression of serglycin in human glioma and its correlation with survival and immune cell infiltration. We demonstrate that serglycin is expressed in glioma and that increased expression predicts poor survival of patients...
April 11, 2017: Oncotarget
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