Immunomodulatory aspects in the progression and treatment of oral malignancy

Publication date: November 2019Source: Japanese Dental Science Review, Volume 55, Issue 1Author(s): Nobuo Kondoh, Masako Mizuno-Kamiya, Naoki Umemura, Eiji Takayama, Harumi Kawaki, Kenji Mitsudo, Yasunori Muramatsu, Shinichiro SumitomoAbstractInflammation substantially affects the risk of oral malignancy. Pro-inflammatory cytokine, interferon (IFN)-γ, confers anti-tumor activity using several different mechanisms. Conversely, higher expression of interleukin (IL)-17 is associated with worse prognosis. Monocyte chemotactic protein (MCP)-1 correlates positively with poor long-term survival of head and neck squamous cell carcinoma (HNSCC) patients. IL-1α affects cancer associated fibroblasts and macrophages, and promote several malignant phenotypes including immune suppression. Some anti-inflammatory cytokines, including IL-10 and transforming growth factor (TGF)-β, relate to pro-tumoral activities.Among immune checkpoint modulators, programmed death (PD-)1 and PD-ligand (L)1 facilitate oral squamous cell carcinoma (OSCC) cell evasion from immune surveillance, and the expression status of these has a prognostic value.OSCCs contain tumor associated macrophages (TAMs) as major stromal cells of their tumor microenvironment. Among the two distinctive states, M2 macrophages support tumor invasion, metastasis and immune suppression. Crosstalk between TAMs and OSCC or cancer-associated fibroblasts (CAF) plays an important role in the progression of OSCC.Clinical trials...
Source: Japanese Dental Science Review - Category: Dentistry Source Type: research

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Publication date: Available online 17 January 2020Source: Molecular Aspects of MedicineAuthor(s): Rita Lampignano, Vera Kloten, Thomas Krahn, Thomas SchlangeAbstractLiquid biopsy holds great promise to complement traditional analysis on cancerous tissue during clinical management of cancer: screening of patients, (early) disease diagnosis, prognosis, therapy selection as well as early response to treatment and disease monitoring. Among emerging circulating biomarkers, cell-free miRNA (cfmiRNA) may have potential in detecting lung cancer and following the course of the disease. Furthermore, several studies highlighted the p...
Source: Molecular Aspects of Medicine - Category: Molecular Biology Source Type: research
Publication date: Available online 18 January 2020Source: Biochimica et Biophysica Acta (BBA) - Molecular Basis of DiseaseAuthor(s): Tomasz Kowalczyk, Michal Ciborowski, Joanna Kisluk, Adam Kretowski, Coral BarbasAbstractPrecision medicine (PM) means the customization of healthcare with decisions and practices adjusted to the individual patient. It includes personalized diagnostics, patients' sub-classification, individual treatment selection and the monitoring of its effectiveness. Currently, in oncology, PM is based on the molecular and cellular features of a tumor, its microenvironment and the patient's genetics and lif...
Source: Biochimica et Biophysica Acta (BBA) Molecular Basis of Disease - Category: Molecular Biology Source Type: research
Publication date: Available online 18 January 2020Source: Life SciencesAuthor(s): Khalil Hajiasgharzadeh, Mohammad Hossein Somi, Behzad Mansoori, Vahid Khaze Shahgoli, Afshin Derakhshani, Ahad Mokhtarzadeh, Dariush Shanehbandi, Behzad BaradaranAbstractAimsIt has been demonstrated that reduced expression of alpha7 nicotinic acetylcholine receptor (α7nAChR) led to reduced chemotherapeutic drugs resistance in various cancer cells. However, whether small interfering RNA (siRNA) mediated knockdown of α7nAChR can reduce sorafenib (SOR) resistance in HCC cells remains to be determined.Materials and methodsThe effects ...
Source: Life Sciences - Category: Biology Source Type: research
Santosh K. Ghosh1*, Thomas S. McCormick1,2 and Aaron Weinberg1* 1Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, United States 2Dermatology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States Human beta-defensins (hBDs, −1, 2, 3) are a family of epithelial cell derived antimicrobial peptides (AMPs) that protect mucosal membranes from microbial challenges. In addition to their antimicrobial activities, they possess other functions; e.g., cell activation, proliferation, regulation of cytokine/chemokine production, migration, diffe...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Reena Goswami1, Gayatri Subramanian2, Liliya Silayeva1, Isabelle Newkirk1, Deborah Doctor1, Karan Chawla2, Saurabh Chattopadhyay2, Dhyan Chandra3, Nageswararao Chilukuri1 and Venkaiah Betapudi1,4* 1Neuroscience Branch, Research Division, United States Army Medical Research Institute of Chemical Defense, Aberdeen, MD, United States 2Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States 3Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States 4Department of Physiology and Biophysics, Case Western Reserve University, Clev...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
In this study, T cells deficient in TRAF6 display enhanced T cell activation, CD28-indpendent stimulation and resistance to Treg cell-mediated suppression (176). Although TLR signaling can promote T cell resistance to Treg cells, the precise molecular mechanism remains yet to be elucidated. It is worth noting that TLR stimulation of T cells increases cytokine production (173, 177), thus future studies should delineate the effect of TLR-MyD88 signaling vs. subsequently induced cytokines in generating resistance to Treg cells. Lastly, it is also crucial to evaluate the effect of TLR signaling on regulatory T cells which also...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Authors: Grauzam S, Brock AM, Holmes CO, Tiedeken JA, Boniface SG, Pierson BN, Patterson DG, Coaxum SD, Neskey DM, Rosenzweig SA Abstract Neural precursor cell expressed developmentally downregulated 9 (NEDD9) is a component of the metastatic signatures of melanoma, breast cancer, glioblastoma, lung cancer and head and neck squamous cell carcinoma (HNSCC). Here we tested the efficacy of NEDD9's domains in stimulating matrix metalloproteinase (MMP) secretion and invadopodia formation in cells stably expressing various NEDD9 mutants. Replacement of the 13 YxxP motif substrate domain (SD) tyrosines and the C-terminal ...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
ConclusionT cell activation induced by checkpoint inhibition may dramatically improve tumor response to radiation. More data are needed to identify the toxicity and efficacy of sequential or concurrent checkpoint inhibitors and radiotherapy.
Source: Journal for Immunotherapy of Cancer - Category: Cancer & Oncology Source Type: research
By Stacy SimonThe US Food and Drug Administration (FDA) has approved Keytruda (pembrolizumab) to treat people with head and neck squamous cell carcinoma that has spread or come back after previous chemotherapy treatment. It’s the first immunotherapy drug approved for head and neck cancer. Keytruda is already approved for melanoma and non-small cell lung cancer.The FDA based its approval on a clinical trial of 174 people with head and neck squamous cell carcinoma that had spread or come back after they were treated with platinum-based chemotherapy. Tumors shrank or disappeared in 16% of the participants who were given...
Source: American Cancer Society :: News and Features - Category: Cancer & Oncology Tags: Oral Cavity and Oropharyngeal Cancer Source Type: news
Conclusion In our patient group the expression of MAGE-A1–6 subtypes in tumor tissues of patients with HNSCC was correlated with advanced clinical stage of cancer and poor oncologic outcomes. We suggest that gene expression of MAGE-A1–6 subtypes may be considered to be a predictive factor to determine patient treatment or follow-up strategy.
Source: International Journal of Clinical Oncology - Category: Cancer & Oncology Source Type: research
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