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Integrating machine learning and single-cell trajectories to analyze T-cell exhaustion to predict prognosis and immunotherapy in colon cancer patients
ConclusionIn this study, we systematically explored the T-cell exhaustion trajectory in COAD and developed a TES model to assess prognosis and provide guidelines for the treatment decision. This discovery gave rise to a fresh concept for novel therapeutic procedures for the clinical treatment of COAD.
Source: Frontiers in Immunology - May 3, 2023 Category: Allergy & Immunology Source Type: research

PD-1-siRNA Delivered by Attenuated Salmonella Enhances the Antitumor Effect of Chloroquine in Colon Cancer
This study suggests that the combined application of PD-1-based immunotherapy and anti-cancer drugs has become a new expectation for clinical treatment of colorectal cancer.
Source: Frontiers in Immunology - July 6, 2021 Category: Allergy & Immunology Source Type: research

Myeloid Derived Suppressor Cells Interactions With Natural Killer Cells and Pro-angiogenic Activities: Roles in Tumor Progression
Conclusions MDSC are major players in the immunosuppressive scenario in cancer, thanks to their phenotype heterogeneity and critical interaction with several innate immune cells, thus representing a crucial target in oncology. Here we reviewed the interactions of MDSCs with NK cells. The contribution of key cytokines, chemokines and mediators active in this process have been discussed. We also described the contribution of MDSC on angiogenesis directly or indirectly through interactions with NK and immunosuppressive activities. A parallel of the cancer associated to the decidual counterpart of these cells is discussed, a...
Source: Frontiers in Immunology - April 17, 2019 Category: Allergy & Immunology Source Type: research

Complement C5b-9 and Cancer: Mechanisms of Cell Damage, Cancer Counteractions, and Approaches for Intervention
In conclusion, osmotic burst of inflated complement-damaged cells may occur, but these bursts are most likely a consequence of metabolic collapse of the cell rather than the cause of cell death. The Complement Cell Death Mediator: A Concerted Action of Toxic Moieties Membrane pores caused by complement were first visualized by electron microscopy on red blood cell membranes as large ring structures (22). Similar lesions were viewed on E. coli cell walls (23). Over the years, ample information on the fine ultrastructure of the MAC that can activate cell death has been gathered (24) and has been recently further examined (...
Source: Frontiers in Immunology - April 9, 2019 Category: Allergy & Immunology Source Type: research

Epithelial-specific ETS-1 (ESE1/ELF3) regulates apoptosis of intestinal epithelial cells in ulcerative colitis via accelerating NF-κB activation
In this study, we reported for the first time that ESE1/ELF3 was over-expressed in intestinal epithelial cells (IECs) of patients with UC. In DSS-induced colitis mouse models, we observed the up-regulation of ESE1/ELF3 accompanied with the elevated levels of IEC apoptotic markers (active caspase-3 and cleaved PARP) and NF-κB activation indicators [phosphorylated NF-κB p65 subunit (p-p65) and p-IκB] in colitis IECs. Increased co-localization of ESE1/ELF3 with active caspase-3 (and p-p65) in IECs of the DSS-induced colitis group further indicated the possible involvement of ESE1/ELF3 in NF-κB-mediated IEC apoptosis in UC...
Source: Immunologic Research - April 30, 2015 Category: Allergy & Immunology Source Type: research