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Tadachina S, Devi Shivalingaiah S, Shetty M. Immunohistochemical Expression of Programmed Death Ligand- 1 (PD-L1) in Colorectal Carcinoma; A Cross-sectional Study. IRANIAN JOURNAL OF PATHOLOGY 2023; 19:22-30. [PMID: 38864082 PMCID: PMC11164304 DOI: 10.30699/ijp.2023.1988660.3054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/04/2023] [Indexed: 06/13/2024]
Abstract
Background & Objective Colorectal carcinoma (CRC) is one of the most common cancers worldwide. The interaction of programmed cell death receptor 1 (PD-1) and programmed death ligand 1 (PD-L1) plays an important role by inhibiting the immune mechanism by which cancer cells escape antitumor immunity. Immunotherapy using checkpoint inhibitors is a growing treatment modality in many cancers; one such is anti-PD1/PD-L1. The present study aimed to study the immunohistochemical (IHC) expression of PD-L1 in CRC and its association with various known clinicopathological parameters. Methods This study was a 2-year prospective study and included 34 colectomy specimens diagnosed as colorectal adenocarcinoma. The expression of PD-L1 was evaluated on tumoral cells and tumor-infiltrating immune cells (TIICs) and was correlated with various clinicopathological parameters. Results Immunohistochemical expression of PD-L1 on tumoral cells and tumor microenvironment in CRC revealed positivity in 17.65% of cases each. The PD-L1 expression on tumoral cells was associated with lymphovascular invasion (LVI) and perineural invasion (PNI) with P- values of 0.012 and 0.005, respectively, while PD-L1 expression on TIICs was associated with tumor budding with a P-value of 0.022. Conclusion IHC expression of PD-L1 on tumoral cells and immune cells may be associated with some known poor prognostic factors. Since anti-PD1/PD-L1 is used for targeted therapy, it may be beneficial and economically feasible to evaluate PD-L1 in CRC and establish its role as a prognostic factor.
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Affiliation(s)
- Shruti Tadachina
- Department of Pathology, JSS Medical College, JSS Academy of Higher Education & Research, Mysuru, Karnataka, India
| | - Sheela Devi Shivalingaiah
- Department of Pathology, JSS Medical College, JSS Academy of Higher Education & Research, Mysuru, Karnataka, India
| | - Mahesh Shetty
- Department of Surgical Gastroenterology JSSMC & Hospital, Mysuru- 04, Karnataka, India
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Zohair B, Chraa D, Rezouki I, Benthami H, Razzouki I, Elkarroumi M, Olive D, Karkouri M, Badou A. The immune checkpoint adenosine 2A receptor is associated with aggressive clinical outcomes and reflects an immunosuppressive tumor microenvironment in human breast cancer. Front Immunol 2023; 14:1201632. [PMID: 37753093 PMCID: PMC10518422 DOI: 10.3389/fimmu.2023.1201632] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/21/2023] [Indexed: 09/28/2023] Open
Abstract
Background The crosstalk between the immune system and cancer cells has aroused considerable interest over the past decades. To escape immune surveillance cancer cells evolve various strategies orchestrating tumor microenvironment. The discovery of the inhibitory immune checkpoints was a major breakthrough due to their crucial contribution to immune evasion. The A2AR receptor represents one of the most essential pathways within the TME. It is involved in several processes such as hypoxia, tumor progression, and chemoresistance. However, its clinical and immunological significance in human breast cancer remains elusive. Methods The mRNA expression and protein analysis were performed by RT-qPCR and immunohistochemistry. The log-rank (Mantel-Cox) test was used to estimate Kaplan-Meier analysis for overall survival. Using large-scale microarray data (METABRIC), digital cytometry was conducted to estimate cell abundance. Analysis was performed using RStudio software (7.8 + 2023.03.0) with EPIC, CIBERSORT, and ImmuneCellAI algorithms. Tumor purity, stromal and immune scores were calculated using the ESTIMATE computational method. Finally, analysis of gene set enrichment (GSEA) and the TISCH2 scRNA-seq database were carried out. Results Gene and protein analysis showed that A2AR was overexpressed in breast tumors and was significantly associated with high grade, elevated Ki-67, aggressive molecular and histological subtypes, as well as poor survival. On tumor infiltrating immune cells, A2AR was found to correlate positively with PD-1 and negatively with CTLA-4. On the other hand, our findings disclosed more profuse infiltration of protumoral cells such as M0 and M2 macrophages, Tregs, endothelial and exhausted CD8+ T cells within A2ARhigh tumors. According to the Single-Cell database, A2AR is expressed in malignant, stromal and immune cells. Moreover, it is related to tumor purity, stromal and immune scores. Our results also revealed that CD8+T cells from A2ARhigh patients exhibited an exhausted functional profile. Finally, GSEA analysis highlighted the association of A2AR with biological mechanisms involved in tumor escape and progression. Conclusion The present study is the first to elucidate the clinical and immunological relevance of A2AR in breast cancer patients. In light of these findings, A2AR could be deemed a promising therapeutic target to overcome immune evasion prevailing within the TME of breast cancer patients.
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Affiliation(s)
- Basma Zohair
- Immuno-Genetics and Human Pathology Laboratory (LIGEP), Faculty of Medicine and Pharmacy, Hassan II University, Casablanca, Morocco
| | - Dounia Chraa
- Team Immunity and Cancer, The Cancer Research Center of Marseille (CRCM), Inserm, 41068, CNRS, UMR7258, Paoli-Calmettes Institute, Aix-Marseille University, UM 105, Marseille, France
| | - Ibtissam Rezouki
- Immuno-Genetics and Human Pathology Laboratory (LIGEP), Faculty of Medicine and Pharmacy, Hassan II University, Casablanca, Morocco
| | - Hamza Benthami
- Immuno-Genetics and Human Pathology Laboratory (LIGEP), Faculty of Medicine and Pharmacy, Hassan II University, Casablanca, Morocco
| | - Ibtissam Razzouki
- Department of Pathological Anatomy, Ibn Rochd University Hospital Center, Casablanca, Morocco
| | - Mohamed Elkarroumi
- Mohamed VI Oncology Center, Ibn Rochd University Hospital Center, Casablanca, Morocco
| | - Daniel Olive
- Team Immunity and Cancer, The Cancer Research Center of Marseille (CRCM), Inserm, 41068, CNRS, UMR7258, Paoli-Calmettes Institute, Aix-Marseille University, UM 105, Marseille, France
| | - Mehdi Karkouri
- Department of Pathological Anatomy, Ibn Rochd University Hospital Center, Casablanca, Morocco
| | - Abdallah Badou
- Immuno-Genetics and Human Pathology Laboratory (LIGEP), Faculty of Medicine and Pharmacy, Hassan II University, Casablanca, Morocco
- Mohammed VI Center for Research & Innovation, Rabat, Morocco and Mohammed VI University of Sciences and Health, Casablanca, Morocco
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Dong LW, Chen YY, Chen CC, Ma ZC, Fu J, Huang BL, Liu FJ, Liang DC, Sun DM, Lan C. Adenosine 2A receptor contributes to the facilitation of post-infectious irritable bowel syndrome by γδ T cells via the PKA/CREB/NF-κB signaling pathway. World J Gastroenterol 2023; 29:1475-1491. [PMID: 36998428 PMCID: PMC10044852 DOI: 10.3748/wjg.v29.i9.1475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/11/2023] [Accepted: 02/22/2023] [Indexed: 03/07/2023] Open
Abstract
BACKGROUND Immunological dysfunction-induced low-grade inflammation is regarded as one of the predominant pathogenetic mechanisms in post-infectious irritable bowel syndrome (PI-IBS). γδ T cells play a crucial role in innate and adaptive immunity. Adenosine receptors expressed on the surface of γδ T cells participate in intestinal inflammation and immunity regulation.
AIM To investigate the role of γδ T cell regulated by adenosine 2A receptor (A2AR) in PI-IBS.
METHODS The PI-IBS mouse model has been established with Trichinella spiralis (T. spiralis) infection. The intestinal A2AR and A2AR in γδ T cells were detected by immunohistochemistry, and the inflammatory cytokines were measured by western blot. The role of A2AR on the isolated γδ T cells, including proliferation, apoptosis, and cytokine production, were evaluated in vitro. Their A2AR expression was measured by western blot and reverse transcription polymerase chain reaction (RT-PCR). The animals were administered with A2AR agonist, or A2AR antagonist. Besides, γδ T cells were also injected back into the animals, and the parameters described above were examined, as well as the clinical features. Furthermore, the A2AR-associated signaling pathway molecules were assessed by western blot and RT-PCR.
RESULTS PI-IBS mice exhibited elevated ATP content and A2AR expression (P < 0.05), and suppression of A2AR enhanced PI-IBS clinical characteristics, indicated by the abdominal withdrawal reflex and colon transportation test. PI-IBS was associated with an increase in intestinal T cells, and cytokine levels of interleukin-1 (IL-1), IL-6, IL-17A, and interferon-α (IFN-α). Also, γδ T cells expressed A2AR in vitro and generated IL-1, IL-6, IL-17A, and IFN-α, which can be controlled by A2AR agonist and antagonist. Mechanistic studies demonstrated that the A2AR antagonist improved the function of γδ T cells through the PKA/CREB/NF-κB signaling pathway.
CONCLUSION Our results revealed that A2AR contributes to the facilitation of PI-IBS by regulating the function of γδ T cells via the PKA/CREB/NF-κB signaling pathway.
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Affiliation(s)
- Li-Wei Dong
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Yi-Yao Chen
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Chao-Chao Chen
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Zhi-Chao Ma
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Jiao Fu
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Bai-Li Huang
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Fu-Jin Liu
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Dong-Chun Liang
- Doheny Eye Institute, Department of Ophthalmology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90033, United States
| | - De-Ming Sun
- Doheny Eye Institute, Department of Ophthalmology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90033, United States
| | - Cheng Lan
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
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Loss of SATB2 expression correlates with cytokeratin 7 and PD-L1 tumor cell positivity and aggressiveness in colorectal cancer. Sci Rep 2022; 12:19152. [PMID: 36351995 PMCID: PMC9646713 DOI: 10.1038/s41598-022-22685-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 10/18/2022] [Indexed: 11/11/2022] Open
Abstract
Colorectal carcinoma (CRC) is a disease that causes significant morbidity and mortality worldwide. To improve treatment, new biomarkers are needed to allow better patient risk stratification in terms of prognosis. This study aimed to clarify the prognostic significance of colonic-specific transcription factor special AT-rich sequence-binding protein 2 (SATB2), cytoskeletal protein cytokeratin 7 (CK7), and immune checkpoint molecule programmed death-ligand 1 (PD-L1). We analyzed a cohort of 285 patients with surgically treated CRC for quantitative associations among the three markers and five traditional prognostic indicators (i.e., tumor stage, histological grade, variant morphology, laterality, and mismatch-repair/MMR status). The results showed that loss of SATB2 expression had significant negative prognostic implications relative to overall survival (OS) and cancer-specific survival (CSS), significantly shortened 5 years OS and CSS and 10 years CSS in patients with CRC expressing CK7, and borderline insignificantly shortened OS in patients with PD-L1 + CRC. PD-L1 showed a significant negative impact in cases with strong expression (membranous staining in 50-100% of tumor cells). Loss of SATB2 was associated with CK7 expression, advanced tumor stage, mucinous or signet ring cell morphology, high grade, right-sided localization but was borderline insignificant relative to PD-L1 expression. CK7 expression was associated with high grade and SATB2 loss. Additionally, a separate analysis of 248 neoadjuvant therapy-naïve cases was performed with mostly similar results. The loss of SATB2 and CK7 expression were significant negative predictors in the multivariate analysis adjusted for associated parameters and patient age. In summary, loss of SATB2 expression and gain of CK7 and strong PD-L1 expression characterize an aggressive phenotype of CRC.
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Barshidi A, Karpisheh V, Noukabadi FK, Kiani FK, Mohammadi M, Afsharimanesh N, Ebrahimi F, Kiaie SH, Navashenaq JG, Hojjat-Farsangi M, Zolbanin NM, Mahmoodpoor A, Hassannia H, Nami S, Jalali P, Jafari R, Jadidi-Niaragh F. Dual Blockade of PD-1 and LAG3 Immune Checkpoints Increases Dendritic Cell Vaccine Mediated T Cell Responses in Breast Cancer Model. Pharm Res 2022; 39:1851-1866. [PMID: 35715669 DOI: 10.1007/s11095-022-03297-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 05/18/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE Increasing the efficiency of unsuccessful immunotherapy methods is one of the most important research fields. Therefore, the use of combination therapy is considered as one of the ways to increase the effectiveness of the dendritic cell (DC) vaccine. In this study, the inhibition of immune checkpoint receptors such as LAG3 and PD-1 on T cells was investigated to increase the efficiency of T cells in response to the DC vaccine. METHODS We used trimethyl chitosan-dextran sulfate-lactate (TMC-DS-L) nanoparticles (NPs) loaded with siRNA molecules to quench the PD-1 and LAG3 checkpoints' expression. RESULTS Appropriate physicochemical characteristics of the generated NPs led to efficient inhibition of LAG3 and PD-1 on T cells, which was associated with increased survival and activity of T cells, ex vivo. Also, treating mice with established breast tumors (4T1) using NPs loaded with siRNA molecules in combination with DC vaccine pulsed with tumor lysate significantly inhibited tumor growth and increased survival in mice. These ameliorative effects were associated with increased anti-tumor T cell responses and downregulation of immunosuppressive cells in the tumor microenvironment and spleen. CONCLUSION These findings strongly suggest that TMC-DS-L NPs loaded with siRNA could act as a novel tool in inhibiting the expression of immune checkpoints in the tumor microenvironment. Also, combination therapy based on inhibition of PD-1 and LAG3 in combination with DC vaccine is an effective method in treating cancer that needs to be further studied.
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Affiliation(s)
- Asal Barshidi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Karpisheh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Fariba Karoon Kiani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Mohammadi
- Department of Cell and Molecular Biology, School of Advanced Sciences, Islamic Azad University, Tehran Medical Branch, Tehran, , Iran
| | - Negin Afsharimanesh
- Department of Microbiology, Faculty of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran
| | - Farbod Ebrahimi
- Nanoparticle Process Technology, Faculty of Engineering, University of Duisburg-Essen, Duisburg, Germany
| | - Seyed Hossein Kiaie
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Nano Drug Delivery Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Mohammad Hojjat-Farsangi
- Bioclinicum, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
- The Persian Gulf Marine Biotechnology Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Naime Majidi Zolbanin
- Experimental and Applied Pharmaceutical Sciences Research Center,, Urmia University of Medical Sciences, Urmia, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, , Urmia University of Medical Sciences, Urmia, Iran
| | - Ata Mahmoodpoor
- Department of Anesthesiology, School of Medicine, Imam Reza Medical Research & Training Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Hassannia
- Immunogenetic Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Sanam Nami
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Pooya Jalali
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Jafari
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran.
| | - Farhad Jadidi-Niaragh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
- Research Center for Integrative Medicine in Aging, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
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Dong LW, Ma ZC, Fu J, Huang BL, Liu FJ, Sun D, Lan C. Upregulated adenosine 2A receptor accelerates post-infectious irritable bowel syndrome by promoting CD4+ T cells’ T helper 17 polarization. World J Gastroenterol 2022; 28:2955-2967. [PMID: 35978875 PMCID: PMC9280732 DOI: 10.3748/wjg.v28.i25.2955] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/26/2022] [Accepted: 06/17/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Post-infectious irritable bowel syndrome (PI-IBS) is generally regarded as a functional disease. Several recent studies have reported the involvement of low-grade inflammation and immunological dysfunction in PI-IBS. T helper 17 (Th17) polarization occurs in IBS. Adenosine and its receptors participate in intestinal inflammation and immune regulation.
AIM To investigate the role of Th17 polarization of CD4+ T cells regulated by adenosine 2A receptor (A2AR) in PI-IBS.
METHODS A PI-IBS model was established by infecting mice with Trichinella spiralis. The intestinal A2AR and CD4+ T lymphocytes were detected by immunohistochemistry, and the inflammatory cytokines were detected by enzyme-linked immunoassay. CD4+ T lymphocytes present in the animal’s spleen were separated and cultured with or without A2AR agonist and antagonist. Western blotting and real-time quantitative polymerase chain reaction were performed to determine the effect of A2AR on the cells and intestinal tissue. Cytokine production was determined. The protein and mRNA levels of A2AR associated signaling pathway molecules were also evaluated. Furthermore, A2AR agonist and antagonist were injected into the mouse model and the clinical features were observed.
RESULTS The PI-IBS mouse model showed increased expression of ATP and A2AR (P < 0.05), and inhibition of A2AR improved the clinical features in PI-IBS, including the abdominal withdrawal reflex and colon transportation test (P < 0.05). The number of intestinal CD4+ T cells and interleukin-17 (IL-17) protein levels increased during PI-IBS, which was reversed by administration of the A2AR antagonist (P < 0.05). CD4+ T cells expressed A2AR and produced IL-17 in vitro, which was regulated by the A2AR agonist and antagonist. The A2AR antagonist increased the production of IL-17 by CD4+ T cells via the Janus kinase-signal transducer and activator of transcription-receptor-related orphan receptor γ signaling pathway.
CONCLUSION The results of the present study suggested that the upregulation of A2AR increases PI-IBS by promoting the Th17 polarization of CD4+ T cells.
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Affiliation(s)
- Li-Wei Dong
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Zhi-Chao Ma
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Jiao Fu
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Bai-Li Huang
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Fu-Jin Liu
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
| | - Deming Sun
- Doheny Eye Institute, Department of Ophthalmology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90033, United States
| | - Cheng Lan
- Department of Gastroenterology, Hainan General Hospital, Affiliated Hainan Hospital, Hainan Medical University, Haikou 570311, Hainan Province, China
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Liu Y, Liu Y, Xu D, Zang J, Zheng X, Zhao Y, Li Y, He R, Ruan S, Dong H, Gu J, Yang Y, Cheng Q, Li Y. Targeting the Negative Feedback of Adenosine-A2AR Metabolic Pathway by a Tailored Nanoinhibitor for Photothermal Immunotherapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104182. [PMID: 35306759 PMCID: PMC9108638 DOI: 10.1002/advs.202104182] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 02/21/2022] [Indexed: 05/10/2023]
Abstract
The metabolite adenosine plays an important immunosuppressive role in the tumor microenvironment (TME) through its ligation with the metabolic checkpoint adenosine 2A receptor (A2AR). Here, an adenosine-A2AR negative feedback pathway is highlighted during photothermal-induced immunogenic cell death (ICD). Adenosine, hydrolyzed from ATP, is amplified during the photothermal-induced ICD process. It is possible to achieve a robust ICD-based immunotherapy via targeting the adenosine-A2AR metabolic pathway. In this regard, an A2AR inhibitor-loaded polydopamine nanocarrier masked by an acid-sensitive PEG shell is designed to enable tumor-specific delivery and photothermal-induced ICD simultaneously. Upon reaching the acidic TME, the PEG shell selectively detaches and exposes the adhesive polydopamine layer, causing the inhibitors to accumulate at the tumor tissue. The accumulated inhibitors attenuate adenosine's metabolically suppressive effect and strengthen the ICD immune response. It occurs through promoting dendritic cell (DC) activation, increasing CD8+ T lymphocyte infiltration, and reducing the myeloid-derived suppressor cell (MDSC) population. Furthermore, this synergistic therapy significantly regresses the primary tumor, inhibits distal tumor growth, and prevents lung metastasis. The study highlights a strategy to enhance the immunotherapy efficacy of ICD by blocking the metabolic checkpoint A2AR using advanced nanomaterials.
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Affiliation(s)
- Yiqiong Liu
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Ying Liu
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Dailin Xu
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Jie Zang
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Xiao Zheng
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Yuge Zhao
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Yan Li
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Ruiqing He
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Shuangrong Ruan
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Haiqing Dong
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Jingjing Gu
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Yan Yang
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
| | - Qian Cheng
- Institute of acousticsSchool of Physics Science and EngineeringTongji UniversityShanghai200092China
| | - Yongyong Li
- Shanghai Skin Disease HospitalThe Institute for Biomedical Engineering & Nano ScienceSchool of MedicineTongji UniversityShanghai200092China
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Sweed D, Taha M, Abd Elhamed S, Shams El Dein Mohamed A. The Prognostic Role of CD73/A2AR Expression and Tumor Immune Response in Periampullary Carcinoma Subtypes. Asian Pac J Cancer Prev 2022; 23:1239-1246. [PMID: 35485681 PMCID: PMC9375596 DOI: 10.31557/apjcp.2022.23.4.1239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 04/23/2022] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Periampullary adenocarcinoma (PAAC) is a rare, lethal heterogeneous group of malignancy that differs in their molecular phenotypes. Ecto-5'-nucleotidase (CD73)/adenosine A2A Receptor (A2AR) pathway has shown an emerging role in cancer therapy through modulating the immune response. Therefore, this study aimed to explore the functional role of CD73 and A2AR in pancreatic ductal adenocarcinoma (PDAC) and ampullary carcinoma (AC). MATERIAL AND METHODS An immunohistochemical study for CD73 and A2AR carried on 48 PDAC cases, 21 AC cases and 34 adjacent non-tumor tissues that were taken from the farthest point of normal pancreatic tissue away from the tumor. RESULTS CD73 was overexpressed in the PDAC (p < 0.001), and AC (p = 0.004) groups compared to their non-tumor tissues. However, A2AR was overexpressed in the PDAC group (p = 0.003) but not in the AC group (p = 0.359) compared to non-tumor tissue. In the PDAC group, CD73 overexpression was significantly associated with longer overall survival (p = 0.018). In contrary, A2AR overexpression was significantly associated with high grade (p = 0.001) and late- stage (p = 0.01). Both markers had no prognostic impact on AC. In the meantime, tumor immune response showed a negative prognostic role in PDAC and AC. The prognostic role of tumor immune response in the PDAC group was strongly modulated by CD73 and A2AR expression. CONCLUSIONS PDAC and AC shared CD73 Overexpression while A2AR was overexpressed in PDAC only. In PDAC, CD73 and A2AR showed an opposed prognostic effect but both had no prognostic impact on AC. In addition, tumor immune response showed a controversial impact on the prognosis of PDAC and AC.
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Affiliation(s)
- Dina Sweed
- National Liver Institute, Menoufia University, Egypt.
| | - Mohammad Taha
- National Liver Institute, Menoufia University, Egypt.
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Adenosine Receptor Signaling in Diseases with Focus on Cancer. JORJANI BIOMEDICINE JOURNAL 2022. [DOI: 10.52547/jorjanibiomedj.10.1.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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10
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Kuang Z, Tu J, Li X. Combined Identification of Novel Markers for Diagnosis and Prognostic of Classic Hodgkin Lymphoma. Int J Gen Med 2021; 14:9951-9963. [PMID: 34955650 PMCID: PMC8694578 DOI: 10.2147/ijgm.s341557] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 11/19/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND An effective diagnostic and prognostic marker based on the gene expression profile of classic Hodgkin lymphoma (cHL) has not yet been developed. The aim of the present study was to investigate potential markers for the diagnosis and prediction of cHL prognosis. METHODS The gene expression profiles with all available clinical features were downloaded from the Gene Expression Omnibus (GEO) database. Then, multiple machine learning algorithms were applied to develop and validate a diagnostic signature by comparing cHL with normal control. In addition, we identified prognostic genes and built a prognostic model with them to predict the prognosis for 130 patients with cHL which were treated with first-line treatment (ABVD chemotherapy or an ABVD-like regimen). RESULTS A diagnostic prediction signature was constructed and showed high specificity and sensitivity (training cohort: AUC=0.981,95% CI 0.933-0.998, P<0.001, validation cohort: AUC=0.955,95% CI 0.895-0.986, P<0.001). Additionally, nine prognostic genes (LAMP1, STAT1, MMP9, C1QB, ICAM1, CD274, CCL19, HCK and LILRB2) were screened and a prognostic prediction model was constructed with them, which had been confirmed effectively predicting prognosis (P<0.001). Furthermore, the results of the immune infiltration assessment indicated that the high scale of the fraction of CD8 + T cells, M1 macrophages, resting mast cells associated with an adverse outcome in cHL, and naive B cells related to prolonged survival. In addition, a nomogram that combined the prognostic prediction model and clinical characteristics is also suggested to have a good predictive value for the prognosis of patients. CONCLUSION The new markers found in this study may be helpful for the diagnosis and prediction of the prognosis of cHL.
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Affiliation(s)
- Zhixing Kuang
- Department of Radiation Oncology, Nanping First Hospital Affiliated to Fujian Medical University, Nanping, People's Republic of China
| | - Jiannan Tu
- Department of Oncology, Nanping First Hospital Affiliated to Fujian Medical University, Nanping, People's Republic of China
| | - Xun Li
- Department of Oncology, Changzhou Tumor Hospital Affiliated to Soochow University, Changzhou, People's Republic of China
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Jennings MR, Munn D, Blazeck J. Immunosuppressive metabolites in tumoral immune evasion: redundancies, clinical efforts, and pathways forward. J Immunother Cancer 2021; 9:e003013. [PMID: 34667078 PMCID: PMC8527165 DOI: 10.1136/jitc-2021-003013] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2021] [Indexed: 01/04/2023] Open
Abstract
Tumors accumulate metabolites that deactivate infiltrating immune cells and polarize them toward anti-inflammatory phenotypes. We provide a comprehensive review of the complex networks orchestrated by several of the most potent immunosuppressive metabolites, highlighting the impact of adenosine, kynurenines, prostaglandin E2, and norepinephrine and epinephrine, while discussing completed and ongoing clinical efforts to curtail their impact. Retrospective analyses of clinical data have elucidated that their activity is negatively associated with prognosis in diverse cancer indications, though there is a current paucity of approved therapies that disrupt their synthesis or downstream signaling axes. We hypothesize that prior lukewarm results may be attributed to redundancies in each metabolites' synthesis or signaling pathway and highlight routes for how therapeutic development and patient stratification might proceed in the future.
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Affiliation(s)
- Maria Rain Jennings
- Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - David Munn
- Medical College of Georgia, Augusta University, Augusta, Georgia, USA
| | - John Blazeck
- Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
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Zhu J, Xiao J, Wang M, Hu D. Pan-Cancer Molecular Characterization of m 6A Regulators and Immunogenomic Perspective on the Tumor Microenvironment. Front Oncol 2021; 10:618374. [PMID: 33585244 PMCID: PMC7876474 DOI: 10.3389/fonc.2020.618374] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/04/2020] [Indexed: 02/05/2023] Open
Abstract
Purpose N6-methyladenosine (m6A) methylation plays a critical role in diverse biological processes. However, knowledge regarding the constitution of m6A on tumor microenvironment (TME) and tumor-infiltrating lymphocytes (TILs) across cancer types is still lacking. We performed comprehensive immuno-genomic analyses to reveal molecular characterization of the m6A regulators and immune-related genes (IRGs) across TME and TIL heterogeneity. Methods We comprehensively analyzed the properties of m6A regulators in genomic profiles from The Cancer Genome Atlas (TCGA) according to expression perturbations of crucial IRGs, CD274, CD8A, GZMA, and PRF1. The four IRGs were proved to be reliable biomarkers of TILs and TME via CIBERSORT and ESTIMATE analyses, and their co-expression relationship was certified by TIMER analysis. Based on their median values, the samples from the pan-cancer tissues (N = 11,057) were classified into eight TME types. The RNA expression levels of 13 m6A regulators were compared across TME subtypes. Single-sample Gene Set Enrichment Analysis (ssGSEA) was also used to classify TME clusters, expression variants of IRGs and m6A regulators were verified among TME clusters. Meanwhile, the correlation between m6A regulators and tumor mutational burden (TMB) were tested. Finally, the impacts of IRGs and TME clusters in clinical characteristics and outcomes were revealed. Results CD274, CD8A, GZMA, and PRF1 showed similar TILs' characteristics, of which the level of T cells CD8 and T cells CD4 memory activated are consistent with the expression levels of the four IRGs and higher immune infiltration. Besides, CD274, CD8A, GZMA, and PRF1 were positively correlated with the stromal score or immune score in almost all 33 tumor types. All of four IRGs showed impact between tumor pathological stages or clinical outcomes. Among TME type I to type IV, m6A regulators' expression drift changed from high-level to low-level in ESCA, BLCA, HNSC, CESC, BRCA, and GBM. However among TME type V to type VIII, m6A regulators drew a shift from low-level to high-level expression in CESC, BLCA, ESCA, KIRP, HNSC, BRCA, KIRC, COAD, LAML, GBM, and KICH. In ssGSEA analyses, IRGs' expression levels were elevated with the immune infiltration degree and m6A regulators' expression level varied among three TIL subgroups. With different TMB levels, expression differences of m6A regulators were observed in BLCA, BRCA, COAD, LGG, LUAD, LUSC, STAD, THCA, and UCEC. Conclusion We identified four crucial IRGs affecting TILs, TME characteristics and clinical parameters. Expression variants of m6A regulators among the subgroups of TME types and ssGSEA clusters suggested that m6A regulators may be essential factors for phenotypic modifications of IRGs and thus affecting TME characteristics across multiple tumor types.
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Affiliation(s)
- Jie Zhu
- Department of Intensive Care Unit, The People's Hospital of Tongliang District, Chongqing, China
| | - Jiani Xiao
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Min Wang
- Department of Respiratory and Geriatrics, Chongqing Public Health Medical Center, Chongqing, China
| | - Daixing Hu
- Department of Urology, First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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13
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Wang S, Yuan B, Wang Y, Li M, Liu X, Cao J, Li C, Hu J. Clinicopathological and prognostic significance of PD-L1 expression in colorectal cancer: a meta-analysis. Int J Colorectal Dis 2021; 36:117-130. [PMID: 32910207 PMCID: PMC7782388 DOI: 10.1007/s00384-020-03734-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/26/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE To systematically evaluate the correlation between PD-L1 expression and clinicopathological features and prognosis of colorectal cancer (CRC). METHODS Seven databases (PubMed, Cochrane Library, EMBASE, Web of Science, CBM, Wanfang, and CNKI) were searched through May 2020. Risk of bias and quality of evidence were assessed by using the Newcastle-Ottawa scale (NOS), and meta-analysis was carried out by using the Review Manager 5.3 software on the studies with the quality evaluation scores ≥ 6. Meta-regression analysis was used to determine the independent role of PD-L1 expression on CRC prognosis after adjusting clinicopathological features and treatment methods. RESULTS A total of 8823 CRC patients in 32 eligible studies. PD-L1 expression was correlated with lymphatic metastasis (yes/no; OR = 1.24, 95% CI (1.11, 1.38)), diameter of tumor (≥ 5 cm/< 5 cm; OR = 1.34, 95% CI (1.06, 1.70)), differentiation (high-middle/low; OR = 0.68, 95% CI (0.53, 0.87)), and vascular invasion (yes/no; OR = 0.80, 95% CI (0.69, 0.92)). PD-L1 expression shortened the overall survival (hazard ratio (HR) = 1.93, 95% CI (1.66, 2.25)), disease-free survival (HR = 1.76, 95% CI (1.50, 2.07)), and progression-free survival (HR = 1.93, 95% CI (1.55, 2.41)). Meta-regression showed that PD-L1 expression played a significant role on poor CRC OS (HR = 1.95, 95% CI (1.92, 3.98)) and disease-free survival (HR = 2.14, 95% CI (0.73, 4.52)). CONCLUSION PD-L1 expression independently predicted a poor prognosis of CRC.
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Affiliation(s)
- Shuxia Wang
- Public Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Bo Yuan
- Basic Medical School, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Yun Wang
- Public Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Mingyang Li
- Public Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Xibo Liu
- Public Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Jing Cao
- Public Health School, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Changtian Li
- Basic Medical School, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Jihong Hu
- Center of Research and Experiment, Gansu University of Chinese Medicine, Lanzhou, 730000, China.
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14
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Cao Y, Wang X, Jin T, Tian Y, Dai C, Widarma C, Song R, Xu F. Immune checkpoint molecules in natural killer cells as potential targets for cancer immunotherapy. Signal Transduct Target Ther 2020; 5:250. [PMID: 33122640 PMCID: PMC7596531 DOI: 10.1038/s41392-020-00348-8] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/13/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022] Open
Abstract
Recent studies have demonstrated the potential of natural killer (NK) cells in immunotherapy to treat multiple types of cancer. NK cells are innate lymphoid cells that play essential roles in tumor surveillance and control that efficiently kill the tumor and do not require the major histocompatibility complex. The discovery of the NK's potential as a promising therapeutic target for cancer is a relief to oncologists as they face the challenge of increased chemo-resistant cancers. NK cells show great potential against solid and hematologic tumors and have progressively shown promise as a therapeutic target for cancer immunotherapy. The effector role of these cells is reliant on the balance of inhibitory and activating signals. Understanding the role of various immune checkpoint molecules in the exhaustion and impairment of NK cells when their inhibitory receptors are excessively expressed is particularly important in cancer immunotherapy studies and clinical implementation. Emerging immune checkpoint receptors and molecules have been found to mediate NK cell dysfunction in the tumor microenvironment; this has brought up the need to explore further additional NK cell-related immune checkpoints that may be exploited to enhance the immune response to refractory cancers. Accordingly, this review will focus on the recent findings concerning the roles of immune checkpoint molecules and receptors in the regulation of NK cell function, as well as their potential application in tumor immunotherapy.
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Affiliation(s)
- Yuqing Cao
- Department of General Surgery, Shengjing Hospital of China Medical University, 110004, Shenyang, China
| | - Xiaoyu Wang
- College of Life and Health Science, Northeastern University, 110819, Shenyang, China
| | - Tianqiang Jin
- Department of General Surgery, Shengjing Hospital of China Medical University, 110004, Shenyang, China
| | - Yu Tian
- Department of General Surgery, Shengjing Hospital of China Medical University, 110004, Shenyang, China
| | - Chaoliu Dai
- Department of General Surgery, Shengjing Hospital of China Medical University, 110004, Shenyang, China
| | - Crystal Widarma
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA
| | - Rui Song
- Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.
| | - Feng Xu
- Department of General Surgery, Shengjing Hospital of China Medical University, 110004, Shenyang, China.
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Harvey JB, Phan LH, Villarreal OE, Bowser JL. CD73's Potential as an Immunotherapy Target in Gastrointestinal Cancers. Front Immunol 2020; 11:508. [PMID: 32351498 PMCID: PMC7174602 DOI: 10.3389/fimmu.2020.00508] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/05/2020] [Indexed: 02/06/2023] Open
Abstract
CD73, a cell surface 5'nucleotidase that generates adenosine, has emerged as an attractive therapeutic target for reprogramming cancer cells and the tumor microenvironment to dampen antitumor immune cell evasion. Decades of studies have paved the way for these findings, starting with the discovery of adenosine signaling, particularly adenosine A2A receptor (A2AR) signaling, as a potent suppressor of tissue-devastating immune cell responses, and evolving with studies focusing on CD73 in breast cancer, melanoma, and non-small cell lung cancer. Gastrointestinal (GI) cancers are a major cause of cancer-related deaths. Evidence is mounting that shows promise for improving patient outcomes through incorporation of immunomodulatory strategies as single agents or in combination with current treatment options. Recently, several immune checkpoint inhibitors received FDA approval for use in GI cancers; however, clinical benefit is limited. Investigating molecular mechanisms promoting immunosuppression, such as CD73, in GI cancers can aid in current efforts to extend the efficacy of immunotherapy to more patients. In this review, we discuss current clinical and basic research studies on CD73 in GI cancers, including gastric, liver, pancreatic, and colorectal cancer, with special focus on the potential of CD73 as an immunotherapy target in these cancers. We also present a summary of current clinical studies targeting CD73 and/or A2AR and combination of these therapies with immune checkpoint inhibitors.
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Affiliation(s)
- Jerry B. Harvey
- Department of Anesthesiology, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Luan H. Phan
- Department of Anesthesiology, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Oscar E. Villarreal
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jessica L. Bowser
- Department of Anesthesiology, The University of Texas Health Science Center at Houston, Houston, TX, United States
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Dai C, Zhang Y, Ni H, Kuang Y, Xu Z. Prognostic significance of LINC00460 overexpression in solid tumours: a meta-analysis. Postgrad Med J 2020; 96:286-295. [PMID: 32054779 DOI: 10.1136/postgradmedj-2019-137172] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/11/2020] [Accepted: 01/19/2020] [Indexed: 12/27/2022]
Abstract
The prognostic value of long intergenic non-protein coding RNA 460 (LINC00460) overexpression in human solid malignant tumours remains unclear. Therefore, we conducted the meta-analysis to systematically review and assess the evidence for the correlation between LINC00460 overexpression and clinicopathological features and overall survival (OS) of patients with solid malignant tumour. An electronic search of PubMed, EMBASE, Web of Science, CNKI, Cochrane Library, Chinese Biological Medical Literature database and WanFang database was applied to select eligible articles. Pooled ORs or HRs with their 95% CIs were calculated to estimate the effects. 9 eligible studies with a total of 935 patients were enrolled in this meta-analysis. The results revealed that high LINC00460 expression was associated with positive lymph node metastasis (positive vs negative: OR=2.97, 95% CI 1.74 to 5.05, p=0.812), advanced tumour-node-metastasis stage (III+IV vs I+II: OR=2.82, 95% CI 1.64 to 4.85, p=0.193) and poorer differentiation (high vs low: OR=0.60, 95% CI 0.36 to 0.99, p=0.569). Additionally, the overexpression of LINC00460 could predict a poorer OS (HR=1.57, 95% CI 1.39 to 1.77) and the shorter disease-free survival (HR=2.32, 95% CI 1.25 to 4.31). Furthermore, according to subgroup analysis and meta-regression results, the heterogeneity of current meta-analysis may be attributed to the differences of cancer type and follow-up months. High expression of LINC00460 could predict poor prognosis in patients with solid malignant tumour. LINC00460 may serve as potential prognostic biomarker for clinical outcomes in various human solid malignant tumours.
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Affiliation(s)
- Chen Dai
- General Surgery, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yan Zhang
- Oncology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Hao Ni
- Pathology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yuting Kuang
- General Surgery, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhihua Xu
- General Surgery, First Affiliated Hospital of Soochow University, Suzhou, China
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