This research is dedicated to investigating the mechanism of programmed cell death ligand 1 (PD-L1) and tumor protein 53 target gene 1 (TP53TG1) in immune regulation of colon cancer (CC). Expressions of TP53TG1, PD-L1 and signal transducers and activators of transcription (STATs) in CC and their correlation were detected through bioinformatics analysis. Effects of PD-L1 and TP53TG1 on the CC were assessed by and experiments. Herein, PD-L1 level was negatively correlated with TP53TG1 expression, but was positively correlated with the levels of STATs. Both overexpressed TP53TG1 and PD-L1 antibody reversed the effects of CT26 cells on inhibiting cell proliferation, cytokine secretion and PD-L1 level, and enhancing the cytotoxicity of NK cells and CD8 T cells. TP53TG1 reduced PD-L1 level by inactivating STATs pathway. Downregulation of PD-L1 increased cytokine secretion and T lymphocyte killing ability, promoted tumor cell apoptosis, and inhibited the tumor growth. Altogether, TP53TG1/STAT axis regulates the immunomodulatory mechanism of CC by reducing PD-L1 expression.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10695788 | PMC |
Publication Analysis
Top Keywords
Similar Publications
CD8+ and CD8- NK Cells and Immune Checkpoint Networks in Peripheral Blood During Healthy Pregnancy.
Int J Mol Sci
January 2025
Department of Medical Microbiology and Immunology, Medical School, University of Pecs, 12 Szigeti Street, 7624 Pecs, Hungary.
Pregnancy involves significant immunological changes to support fetal development while protecting the mother from infections. A growing body of evidence supports the importance of immune checkpoint pathways, especially at the maternal-fetal interface, although limited information is available about the peripheral expression of these molecules by CD8+ and CD8- NK cell subsets during the trimesters of pregnancy. Understanding the dynamics of these immune cells and their checkpoint pathways is crucial for elucidating their roles in pregnancy maintenance and potential complications.
View Article and Find Full Text PDFBest practices in the management of thyroid dysfunction induced by immune checkpoint inhibitors.
Eur Thyroid J
January 2025
D Yabe, Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine Faculty of Medicine, Kyoto, Japan.
Immune checkpoint inhibitors (ICIs) frequently cause immune-related adverse events (irAEs), with thyroid irAEs being the most common endocrine-related irAEs. The incidence of overt thyroid irAEs ranged 8.9-22.
View Article and Find Full Text PDFOn-Demand Controlled Release Multi-Drugs Delivery System for Spatiotemporally Synergizing Antitumor Immunotherapy.
Adv Sci (Weinh)
January 2025
School of Pharmaceutical Sciences, Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou, 450001, China.
Although cytotoxic T lymphocytes (CTLs) activation combined with programmed cell death-1 (PD-1)/programmed cell death ligand-1 (PD-L1) axis blockade have emerged as an effective strategy to improve immunotherapeutic potency, it remains challenging to realize the spatiotemporal synergy of these two components. Herein, the study reports an engineered bacterial-based delivery system that can simultaneously promote CTLs infiltration and control PD-L1 binding protein (PD-L1 trap) release on demand at tumor site. The drug release button of this tumor targeting system is the specific temperature, which is accomplished by dual-modified melanin nanoparticles with photothermal conversion capacity on the engineered bacterial.
View Article and Find Full Text PDFThe analysis of molecular classification of pulmonary neuroendocrine tumors and relationship between YAP1 and efficacy.
Invest New Drugs
January 2025
Postgraduate Training Base Alliance, Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, 310022, Zhejiang, China.
A novel molecular classification for small cell lung cancer (SCLC) has been established utilizing the transcription factors achaete-scute homologue 1 (ASCL1), neurogenic differentiation factor 1 (NeuroD1), POU class 2 homeobox 3 (POU2F3), and yes-associated protein 1 (YAP1). This classification was predicated on the transcription factors. Conversely, there is a paucity of information regarding the distribution of these markers in other subtypes of pulmonary neuroendocrine tumors (PNET).
View Article and Find Full Text PDFObservation on the Therapeutic Efficacy of Camrelizumab Combined with Chemotherapy in Non-small Cell Lung Cancer and the Cutaneous Immune-related Adverse Events: A Retrospective Study.
Anticancer Agents Med Chem
January 2025
Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China.
Introduction: Immunotherapy targeting PD-1/PD-L1 shows significant benefits in lung cancer. Cutaneous immune-related adverse events (irAEs) are frequent, early-developing side effects of ICIs, and their potential role as prognostic markers in non-small cell lung cancer (NSCLC) therapy requires further exploration.
Methods: Data of patients with NSCLC treated with camrelizumab Combined with chemotherapy were collected at Xuzhou Medical University from 2019 to 2023.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!