Oxidative Stress in the Tumor Immune Microenvironment

2021 ◽  
pp. 27-54
Author(s):  
Yuexi Wang ◽  
Yanan Hu ◽  
Yuting Jiang ◽  
Shengtao Zhou
Keyword(s):  
Oxidative Stress ◽  
Immune Microenvironment ◽  
Tumor Immune Microenvironment

NIR-active Nanoterminator with Mature Dendritic Cell Acitivities for Immuno-Priming Mild Photothermal Cancer Therapy

2020 ◽  
Author(s):  
zhihong sun ◽  
Guanjun Deng ◽  
Xinghua Peng ◽  
Xiuli Xu ◽  
Lanlan Liu ◽  
...  
Keyword(s):  
Dendritic Cell ◽  
Photothermal Therapy ◽  
Whole Body ◽  
Mature Dendritic Cell ◽  
Immune Microenvironment ◽  
Highly Efficient ◽  
Tumor Immune Microenvironment ◽  
Shock Proteins ◽  
Mild Temperature ◽  
Broad Interest

Recently, photothermal-immuno synergistic therapy under mild temperature (~ 45 °C) has got broad interest in cancer treatment. Inhibition the intratumorally HSPs production is the key to accomplish highly efficient and mild photothermal therapy. In this work, we developed biomimetic nanoterminators with mature DCs functions by coating the mature dendritic cell membrane on photothermal nanoagents. As-prepared nanoterminators could automatically locate on T cell in the complex tumor-immune microenvironment and promote the T cells proliferation, activation and cytokine secretion, which could not only inhibit the expression of heat shock proteins to cooperate on highly efficient mild photothermal therapy (~42°C), but also promote tumor apoptosis during the treatment. More importantly, this nanoterminator could serve as vaccine to trigger anti-tumor immune response of the whole body, which would be promising to long-life tumor inhibition and termination.

Impact of Stimulator of Interferon Genes (STING) Signaling on the Tumor Immune Microenvironment

2020 ◽  
Author(s):  
Ling-Ling Zhu ◽  
Ze-Long Liu ◽  
Jing-Hua Liu ◽  
Zi-han Qu ◽  
Hong-e Zhang ◽  
...  
Keyword(s):  
Immune Microenvironment ◽  
Tumor Immune Microenvironment

A pan-cancer analysis of the human tumor coagulome and its link to the tumor immune microenvironment

2020 ◽  
Author(s):  
Zuzana Saidak ◽  
Simon Soudet ◽  
Marine Lottin ◽  
Valéry Salle ◽  
Marie-Antoinette Sevestre ◽  
...  
Keyword(s):  
Human Tumor ◽  
Immune Microenvironment ◽  
Tumor Immune Microenvironment ◽  
Pan Cancer

scholarly journals Identification of KRAS G12V associated clonal neoantigens and immune microenvironment in long-term survival of pancreatic adenocarcinoma

2021 ◽  
Author(s):  
Chao Wang ◽  
Min Shi ◽  
Lei Zhang ◽  
Jun Ji ◽  
Ruyan Xie ◽  
...  
Keyword(s):  
Pancreatic Adenocarcinoma ◽  
Genomic Analysis ◽  
Molecular Characteristics ◽  
Immune Microenvironment ◽  
Term Survival ◽  
Long Term Survival ◽  
Tumor Immune Microenvironment ◽  
Genetic Features ◽  
Multiple Recurrences

Abstract Objective To investigate the molecular characteristics in tumor immune microenvironment that affect long-term survival of patients with pancreatic adenocarcinoma (PAAD). Methods The tumor related genetic features of a female PAAD patient (over 13-year survival) who suffered from multiple recurrences and metastases, and six operations over one decade were investigated deeply. Genomic features and immune microenvironment signatures of her primary lesion as well as six metastatic tumors at different time-points were characterized. Results High-frequency clonal neoantigenic mutations identified in these specimens revealed the significant associations between clonal neoantigens with her prognosis after each surgery. Meanwhile, the TCGA and ICGC databases were employed to analyse the function of KRAS G12V in pancreatic cancer. Conclusions The genomic analysis of clonal neoantigens combined with tumor immune microenvironment could promote the understandings of personalized prognostic evaluation and the stratification of resected PAAD individuals with better outcome.

scholarly journals Characterizing the Tumor Immune Microenvironment with Tyramide-Based Multiplex Immunofluorescence

2020 ◽  
Vol 25 (4) ◽  
pp. 417-432
Author(s):  
Hidetoshi Mori ◽  
Jennifer Bolen ◽  
Louis Schuetter ◽  
Pierre Massion ◽  
Clifford C. Hoyt ◽  
...  
Keyword(s):  
Tumor Microenvironment ◽  
Multispectral Imaging ◽  
Imaging System ◽  
Predictive Biomarkers ◽  
Cell Types ◽  
Immune Microenvironment ◽  
Tumor Immune Microenvironment ◽  
Manual Processing ◽  
Cell Densities ◽  
Immune Profiling

AbstractMultiplex immunofluorescence (mIF) allows simultaneous antibody-based detection of multiple markers with a nuclear counterstain on a single tissue section. Recent studies have demonstrated that mIF is becoming an important tool for immune profiling the tumor microenvironment, further advancing our understanding of the interplay between cancer and the immune system, and identifying predictive biomarkers of response to immunotherapy. Expediting mIF discoveries is leading to improved diagnostic panels, whereas it is important that mIF protocols be standardized to facilitate their transition into clinical use. Manual processing of sections for mIF is time consuming and a potential source of variability across numerous samples. To increase reproducibility and throughput we demonstrate the use of an automated slide stainer for mIF incorporating tyramide signal amplification (TSA). We describe two panels aimed at characterizing the tumor immune microenvironment. Panel 1 included CD3, CD20, CD117, FOXP3, Ki67, pancytokeratins (CK), and DAPI, and Panel 2 included CD3, CD8, CD68, PD-1, PD-L1, CK, and DAPI. Primary antibodies were first tested by standard immunohistochemistry and single-plex IF, then multiplex panels were developed and images were obtained using a Vectra 3.0 multispectral imaging system. Various methods for image analysis (identifying cell types, determining cell densities, characterizing cell-cell associations) are outlined. These mIF protocols will be invaluable tools for immune profiling the tumor microenvironment.

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