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Larsen TV, Daugaard TF, Gad HH, Hartmann R, Nielsen AL. PD-L1 and PD-L2 immune checkpoint protein induction by type III interferon in non-small cell lung cancer cells. Immunobiology 2023; 228:152389. [PMID: 37146414 DOI: 10.1016/j.imbio.2023.152389] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/29/2023] [Accepted: 04/16/2023] [Indexed: 05/07/2023]
Abstract
INTRODUCTION Despite the clinical success of PD-1/PD-1-ligand immunotherapy in non-small cell lung cancer (NSCLC), the appearance of primary and acquired therapy resistance is a major challenge reflecting that the mechanisms regulating the expression of the PD-1-ligands PD-L1 and PD-L2 are not fully explored. Type I and II interferons (IFNs) induce PD-L1 and PD-L2 expression. Here, we examined if PD-L1 and PD-L2 expression also can be induced by type III IFN, IFN-λ, which is peculiarly important for airway epithelial surfaces. METHODS In silico mRNA expression analysis of PD-L1 (CD274), PD-L2 (PDCD1LG2), and IFN- λ signaling signature genes in NSCLC tumors and cell lines was performed using RNA sequencing expression data from TCGA, OncoSG, and DepMap portals. IFN-λ-mediated induction of PD-L1 and PD-L2 expression in NSCLC cell lines was examined by real-time quantitative polymerase chain reaction and flow cytometry. RESULTS IFNL genes encoding IFN- λ variants are expressed in the majority of NSCLC tumors and cell lines along with the IFNLR1 and IL10R2 genes encoding the IFN-λ receptor subunits. The expression of PD-L1 and PD-L2 mRNA is higher in NSCLC tumors with IFNL mRNA expression compared to tumors without IFNL expression. In the NSCLC cell line HCC827, stimulation with IFN-λ induced both an increase in PD-L1 and PD-L2 mRNA expression and cell surface abundance of the corresponding proteins. In the NSCLC cell line A427, displaying a low basal expression of PD-L1 and PD-L2 mRNA and corresponding proteins, stimulation with IFN-λ resulted in an induction of the former. CONCLUSION The type III IFN, IFN- λ, is capable of inducing PD-L1 and PD-L2 expression, at least in some NSCLC cells, and this regulation will need acknowledgment in the development of new diagnostic procedures, such as gene expression signature profiles, to improve PD-1/PD-1-ligand immunotherapy in NSCLC.
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Affiliation(s)
| | | | - Hans Henrik Gad
- Department of Molecular Biology and Genetics, Aarhus University, Denmark
| | - Rune Hartmann
- Department of Molecular Biology and Genetics, Aarhus University, Denmark
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Mutant p53 gain of function mediates cancer immune escape that is counteracted by APR-246. Br J Cancer 2022; 127:2060-2071. [PMID: 36138076 PMCID: PMC9681866 DOI: 10.1038/s41416-022-01971-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 08/05/2022] [Accepted: 08/24/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND p53 mutants contribute to the chronic inflammatory tumour microenvironment (TME). In this study, we address the mechanism of how p53 mutants lead to chronic inflammation in tumours and how to transform it to restore cancer immune surveillance. METHODS Our analysis of RNA-seq data from The Cancer Genome Atlas Breast Invasive Carcinoma (TCGA-BRCA) project revealed that mutant p53 (mtp53) cancers correlated with chronic inflammation. We used cell-based assays and a mouse model to discover a novel gain of function of mtp53 and the effect of the mtp53 reactivating compound APR-246 on the anti-tumour immune response. RESULTS We found that tumour samples from patients with breast carcinoma carrying mtp53 showed elevated Interferon (IFN) signalling, Tumour Inflammation Signature (TIS) score and infiltration of CD8+ T cells compared to wild type p53 (wtp53) tumours. We showed that the expression of IFN and immune checkpoints were elevated in tumour cells in a mtp53-dependent manner, suggesting a novel gain of function. Restoration of wt function to mtp53 by APR-246 induced the expression of endogenous retroviruses, IFN signalling and repressed immune checkpoints. Moreover, APR-246 promoted CD4+ T cells infiltration and IFN signalling and prevented CD8+ T cells exhaustion within the TME in vivo. CONCLUSIONS Breast carcinomas with mtp53 displayed enhanced inflammation. APR-246 boosted the interferon response or represses immune checkpoints in p53 mutant tumour cells, and restores cancer immune surveillance in vivo.
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Yang XX, Li YY, Gong G, Geng HY. lncRNA260 siRNA Accelerates M2 Macrophage Polarization and Alleviates Oxidative Stress via Inhibiting IL28RA Gene Alternative Splicing. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4942519. [PMID: 36193089 PMCID: PMC9525799 DOI: 10.1155/2022/4942519] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022]
Abstract
The macrophage transformation of inflammatory M1 to anti-inflammatory M2 could be promoted by activating PI3K/AKT signaling pathway. In our previous study, it was found that downregulation of lncRNA260 could ameliorate hypoxic cardiomyocyte injury by regulating IL28RA through the activation of PI3K/AKT signaling pathways. It was suggested that lncRNA260 siRNA could promote the macrophages toward M2 polarization by regulating IL28RA. In this study, lncRNA260 siRNA was used to observe its effect on the polarization of murine bone marrow-derived macrophages (BMDM) and investigate its related mechanisms. lncRNA 260 specific siRNA were designed and synthesized which were transfected into murine BMDM with liposomes. The experiment was divided into three groups: Hypoxia group, Hypoxia+lncRNA 260-specific siRNA transfection group, and Normoxia group. The CD206-APC/CD11b-FITC or CD206-FITC/CD107b (Mac-3) double positive proportions were used to compare the M2 polarization proportions in the hypoxia process by using the immunofluorescence staining method. The p-AKT, Arg 1, PI3KCG, IL28RAV1, and IL28RAV2 protein expression changes were observed by using the western blot method. Compared with the Normoxia group, the M2 proportions were significantly decreased in the Hypoxia group (P < 0.05). Compared with the hypoxia group, the M2 proportions were significantly increased in the Hypoxia+lncRNA260 siRNA transfection group (P < 0.05). In the Hypoxia group, the ratios of Arg 1/β-Actin, p-AKT/β-Actin, PI3KCG/β-Actin, and IL28RAV1/β-Actin were significantly lower than those in the Normoxia group (P < 0.05). After transfection with lncRNA260 siRNA, the ratios of Arg1/β-Actin, p-AKT/β-Actin, PI3KCG/β-Actin, and IL28RAV1/β-Actin were significantly higher than those in the Hypoxia group (P < 0.05). Compared with the Normoxia group, the IL28RAV2/β-Actin in the Hypoxia group was significantly increased (P < 0.05). After transfection with lncRNA260 siRNA, the ratio of IL28RAV2/β-Actin was significantly decreased than that in the Hypoxia group (P < 0.05). lncRNA260 siRNA could promote the M2 polarization of the hypoxia macrophages by reducing the IL28RAV2 alternative splicing variant, which might be related to the activation of the JAK-STAT and PI3K/AKT signaling pathways. It will provide a new strategy for the anti-inflammation, antioxidative stress therapy, and cardiac remodeling after AMI.
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Affiliation(s)
- Xin-Xing Yang
- Department of Gerontology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Department of Intensive Care Unit, Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Yan-Yan Li
- Department of Gerontology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Clinical Research Center, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ge Gong
- Department of Gerontology, General Hospital of Eastern Theater Command, Nanjing, China
| | - Hong-Yu Geng
- Department of Intensive Care Unit, Baoding First Central Hospital, Baoding, China
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Yamagata K, Uzu E, Yoshigai Y, Kato C, Tagami M. Oleic acid and oleoylethanolamide decrease interferon-γ-induced expression of PD-L1 and induce apoptosis in human lung carcinoma cells. Eur J Pharmacol 2021; 903:174116. [PMID: 33957086 DOI: 10.1016/j.ejphar.2021.174116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 04/16/2021] [Accepted: 04/20/2021] [Indexed: 01/10/2023]
Abstract
Inhibition of programmed death-ligand 1 (PD-L1) in cancer cells provides a reasonable avenue to prevent cancer progression. Although oleate is known to exert anti-cancer effects, its PD-L1 inhibitory effects have not been proven. This study investigated the effects of oleic acid and an oleic acid metabolite, oleoylethanolamide (OEA), on PD-L1 expression and biomarkers of tumorigenesis in several cancer cell lines, namely A549, HuH-7, MCF-7, DLD-1, and LoVo cells. Specifically, we analyzed the expression of PD-L1 and several apoptosis-related genes using RT-PCR. Interferon-gamma (IFN-γ)-induced modulation of PD-L1 protein expression was investigated using western blotting. Results indicate that IFN-γ stimulation increased the expression of PD-L1 in the chosen cancer cell lines. The IFN-γ-induced expression of PD-L1 was greater in A549 cells, than in other cancerous cell lines. In A549 cells, oleic acid and OEA decreased IFN-γ-induced expression of PD-L1, Bax, Bcl-2, and caspase 3. Oleic acid and OEA decreased IFN-γ-induced phosphorylation of STAT. These results indicate that oleic acid and OEA inhibit PD-1 expression, and induce apoptosis via STAT phosphorylation. Therefore, oleic acid and OEA may prevent cancer formation through STAT phosphorylation with IFN-γ. These findings provide novel insights into the anti-cancer effects of oleic acid-rich oil, such as olive oil.
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Affiliation(s)
- Kazuo Yamagata
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University (NUBS), Fujisawa, Japan.
| | - Erika Uzu
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University (NUBS), Fujisawa, Japan
| | - Yuri Yoshigai
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University (NUBS), Fujisawa, Japan
| | - Chihiro Kato
- Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University (NUBS), Fujisawa, Japan
| | - Motoki Tagami
- Department of Internal Medicine, Sanraku Hospital, Chiyoda-Ku, Tokyo, Japan
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Gao D, Yu X, Zhang B, Kong M, Fang Y, Cai Y, Zhu C, Zhao J, Li J. Role of autophagy in inhibiting the proliferation of A549 cells by type III interferon. Cell Biol Int 2019; 43:605-612. [PMID: 30958598 DOI: 10.1002/cbin.11132] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 03/18/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Dongmei Gao
- Department of Thoracic SurgeryAffiliated Taizhou Hospital of Wenzhou Medical UniversityTaizhou People's Republic of China
- Institute of Cell BiologyZhejiang UniversityHangzhou People's Republic of China
- Department of Clinical LaboratoryThird Affiliated Hospital of Anhui Medical UniversityHefei People's Republic of China
| | - Xiaoqin Yu
- Department of Clinical LaboratoryThird Affiliated Hospital of Anhui Medical UniversityHefei People's Republic of China
| | - Bo Zhang
- Institute of Cell BiologyZhejiang UniversityHangzhou People's Republic of China
| | - Min Kong
- Institute of Cell BiologyZhejiang UniversityHangzhou People's Republic of China
| | - Yong Fang
- Department of Clinical LaboratoryThird Affiliated Hospital of Anhui Medical UniversityHefei People's Republic of China
| | - Yu Cai
- Department of Clinical LaboratoryThird Affiliated Hospital of Anhui Medical UniversityHefei People's Republic of China
| | - Chengchu Zhu
- Department of Thoracic SurgeryAffiliated Taizhou Hospital of Wenzhou Medical UniversityTaizhou People's Republic of China
| | - Jun Zhao
- Department of GastroenterologySanMen People's HospitalTaizhou Zhejiang Province People's Republic of China
- Department of MicrobiologyAnhui Medical UniversityHefei Anhui Province People's Republic of China
| | - Jicheng Li
- Institute of Cell BiologyZhejiang UniversityHangzhou People's Republic of China
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Galani V, Kastamoulas M, Varouktsi A, Lampri E, Mitselou A, Arvanitis DL. IFNs-signaling effects on lung cancer: an up-to-date pathways-specific review. Clin Exp Med 2016; 17:281-289. [PMID: 27416926 DOI: 10.1007/s10238-016-0432-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 07/07/2016] [Indexed: 01/01/2023]
Abstract
IFNs have found important applications in clinical medicine, including the treatment of lung malignancies. The biological effect of the IFN-receptor signaling is regulated essentially by three factors: the expression profile of the IFN itself, the profile of the receptor, and the expression of target genes. IFNs initiate their signaling by binding to specific receptors. The activated IFNs can directly induce gene transcription and/or multiple downstream signaling that both induce diverse cellular responses including the cell cycle arrest and the apoptosis in tumor cells. We provided evidence that IFN-γ enhances the pro cell death effects of Fas/CD95 in human neoplastic alveolar epithelial cell line, A549. We also found that p27 protein plays a pivotal role in the inducing cell death of IFNγ-CH-11-treated A549 cells, since it is involved in the Ras/Raf signaling pathway. This article discusses recent insights into these possible additional functions of IFNs in lung cancer treatment.
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Affiliation(s)
- Vasiliki Galani
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, University of Ioannina, 45110, Ioannina, Greece.
| | - Michalis Kastamoulas
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, University of Ioannina, 45110, Ioannina, Greece
| | | | - Evangeli Lampri
- Department of Cancer Biobank Center, University of Ioannina, Ioannina, Greece
| | - Antigoni Mitselou
- Department of Forensic Pathology, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Dimitrios L Arvanitis
- Department of Anatomy-Histology-Embryology, Faculty of Medicine, University of Thessaly, Larissa, Greece
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Bakre A, Wu W, Hiscox J, Spann K, Teng MN, Tripp RA. Human respiratory syncytial virus non-structural protein NS1 modifies miR-24 expression via transforming growth factor-β. J Gen Virol 2016; 96:3179-3191. [PMID: 26253191 DOI: 10.1099/jgv.0.000261] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Human respiratory syncytial virus (RSV) is a major health challenge in the young and elderly owing to the lack of a safe and effective vaccine and proven antiviral drugs. Understanding the mechanisms by which viral genes and proteins modulate the host response to infection is critical for identifying novel disease intervention strategies. In this study, the RSV non-structural protein NS1 was shown to suppress miR-24 expression during infection. Lack of NS1 was linked to increased expression of miR-24, whilst NS1 overexpression suppressed miR-24 expression. NS1 was found to induce Kruppel-like factor 6 (KLF6), a transcription factor that positively regulates the transforming growth factor (TGF)-b pathway to induce cell cycle arrest. Silencing of KLF6 led to increased miR-24 expression via downregulation of TGF-β. Treatment with exogenous TGF-β suppressed miR-24 expression and induced KLF6. Confocal microscopy showed co-localization of KLF6 and RSV NS1. These findings indicated that RSV NS1 interacts with KLF6 and modulates miR-24 expression and TGF-β, which facilitates RSV replication.
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Affiliation(s)
- Abhijeet Bakre
- Department of Infectious Diseases, University of Georgia, Athens, GA, USA
| | - Weining Wu
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | - Julian Hiscox
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | - Kirsten Spann
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Michael N Teng
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Ralph A Tripp
- Department of Infectious Diseases, University of Georgia, Athens, GA, USA
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Current World Literature. Curr Opin Oncol 2013; 25:205-208. [DOI: 10.1097/cco.0b013e32835ec49f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li W, Tong H, Huang X, Wang W, Wu H, Lin S. High levels of β-catenin promote IFNγ-induced apoptosis in hepatocellular carcinoma cells. Oncol Lett 2012; 4:1092-1096. [PMID: 23162658 DOI: 10.3892/ol.2012.844] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 07/24/2012] [Indexed: 11/05/2022] Open
Abstract
β-catenin is a multifunctional protein that is involved in cellular structure and the Wnt/β-catenin signaling pathway. Wnt/β-catenin signaling is believed to be an inducer of cell proliferation in different tumors. However, in certain physiological contexts β-catenin also promotes apoptosis. High levels of β-catenin are found in a number of cancer cell types. Recent studies have shown that β-catenin may be correlated with carcinogenesis. Its effects and interaction with interferon (IFN)γ signaling in hepatocellular carcinoma (HCC) cells remains unknown. In the present study, high levels of β-catenin did not induce antiproliferative effects or apoptosis and did not lead to changes in the levels of caspases or activated STATs. However, high levels of β-catenin did cause positive p53 accumulation and Bcl-XL downregulation in HepG2 cells, a HCC cell line. When treated with IFNγ, apoptosis was induced more rapidly compared with cells with low β-catenin levels (P<0.05), whereas caspases 3, 8 and 9 were markedly activated. The caspase inhibitor Z-VAD-FMK and the STAT3 inhibitor blocked this IFNγ-induced apoptosis. Therefore, we report that high levels of β-catenin promote IFNγ-induced apoptosis in HCC in a caspase- and STAT3-dependent manner, and facilitate the activation of executor caspases, possibly via regulation of p53 and Bcl-XL levels. These findings may provide foundations for the development of new IFN-based therapies against liver cancer.
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Affiliation(s)
- Wei Li
- Department of Infectious Diseases, Beijing You'an Hospital, Capital Medical University, Beijing 100069
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