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Tian W, Liu M, Liu Y, Lv Q, Cheng H, Gu Y, Li M. TIM-3 regulates the proliferation by BDNF-mediated PI3K/AKT axis in the process of endometriosis. Mol Med 2023; 29:170. [PMID: 38114892 PMCID: PMC10731854 DOI: 10.1186/s10020-023-00768-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 12/08/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND T cell immunoglobulin and mucin domain-containing molecule-3 (TIM-3) initially discovered on the surface of Th1 cells, negatively regulates immune responses and mediates apoptosis of Th1 cells. An increasing number of studies have since shown that TIM-3 is crucial in the genesis and development of immune diseases, cancers, and chronic infectious illnesses. However, the effect of TIM-3 on endometriosis is still unknown. METHODS Quantitative real-time polymerase chain reaction, western blotting, and immunohistochemistry were used to measure TIM-3 levels in endometriosis. Cell Counting Kit-8, 5-ethynyl-2'-deoxyuridine, colony-forming, Transwell® migration, Matrigel® invasion, and flow cytometry assays were used to explore the function of TIM-3 in vitro, and xenograft experiments in nude mice were used to assess its role in vivo. According to the RNA seq, brain-derived neurotrophic factor (BDNF) was screened. The involvement of specific proliferation-related signaling molecules was determined by transfecting a plasmid and adding an inhibitor in vivo and in vitro. RESULTS TIM-3 mRNA and protein expression levels were significantly higher in eutopic and ectopic endometrial tissues than in normal endometrial tissues. By examining the effects of TIM-3 overexpression and knockdown on cell proliferation, migration, and invasion in vitro, and lesions formation in vivo, we found that the expression of TIM-3 was positively correlated with cell proliferation and clone formation in vitro, as well as lesions growth in nude mice. By adding the phosphatidylinositol 3 kinase/protein kinase B(PI3K/AKT) pathway inhibitor LY294002 and knocking down PI3K, we further verified that TIM-3 promotes proliferation in vivo and in vitro via the PI3K pathway. By transfecting the plasmid into ESC cells and gave inhibitors to endometriotic rats models, we tested that TIM-3 regulates the proliferation by BDNF-mediated PI3K/AKT axis. CONCLUSION TIM-3 can promote the proliferation of endometriosis by BDNF-mediated PI3K/AKT axis in vivo and in vitro, which may provide a new therapeutic target for the treatment of endometriosis.
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Affiliation(s)
- Wei Tian
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Medical Science and Technology Innovation Center, Shandong First Medical University, Jinan, China
| | - Min Liu
- Medical Science and Technology Innovation Center, Shandong First Medical University, Jinan, China
| | - Yuqiu Liu
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Qingfeng Lv
- Department of Obstetrics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - HuaFeng Cheng
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yanling Gu
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Mingjiang Li
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
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Yan X, Sun J, Yang W, Li X, Yang Q, Li Y, Wu W, Wei P, Wang L, Song L. An immunoglobulin superfamily member (CgIgIT2) functions as immune inhibitory receptor to inhibit the inflammatory cytokine expressions in Crassostrea gigas. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 144:104708. [PMID: 37044269 DOI: 10.1016/j.dci.2023.104708] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 06/05/2023]
Abstract
Immune inhibitory receptors are increasingly acknowledged as potent regulators of immune response, which inhibit the overactivation of immune system and play an important role in maintaining immune homeostasis. In the present study, a novel immunoglobulin superfamily member (CgIgIT2) was identified from the Pacific oyster, Crassostrea gigas. The protein sequence of CgIgIT2 contained one signal peptide, four Ig domains, one fibronectin type III domain, one transmembrane domain, and a cytoplasmic tail with two intracellular immunoreceptor tyrosine-based inhibitory motifs (ITIMs) and one immunoreceptor tyrosine-based switch motif (ITSM). The mRNA transcripts of CgIgIT2 were widely expressed in all the tested tissues, including haemolymph, gill, mantle, adductor muscle, labial palp, gonad and hepatopancreas, with the highest expression in haemolymph. The mRNA expressions of CgIgIT2 in haemocytes increased significantly at 24, 48 and 72 h after Vibrio splendidus stimulation. The positive green signals of CgIgIT2 protein were mainly detected in granulocytes of haemocytes, which were 1.27-fold and 2.15-fold (p < 0.05) higher than that of semi-granulocytes and agranulocytes, respectively. And CgIgIT2 was mainly located in the membrane and cytoplasm of haemocytes. The recombinant protein of CgIgIT2-4 × Ig (rCgIgIT2-4 × Ig) exhibited binding activity towards multiple pathogen-associated molecular patterns (PAMPs), including lipopolysaccharides (LPS), peptidoglycan (PGN), mannose (MAN) and polyinosinic-polycytidylic acid (Poly (I: C)) with the highest affinity for LPS. rCgIgIT2-4 × Ig could also bind Gram-negative bacteria (V. splendidus, V. anguillarum, Escherichia coli), Gram-positive bacteria (Staphylococcus aureus, Bacillus subtilis), and fungi (Pichia pastoris). In the blocking assay with anti-CgIgIT2 antibody, the mRNA expressions of interleukins (CgIL17-1, CgIL17-3 and CgIL17-6) and tumor necrosis factors (CgTNF-1 and CgTNF-2) in haemocytes all increased significantly at 12 h after V. splendidus stimulation. These results suggested that CgIgIT2 could function as an inhibitor receptor to bind different PAMPs and microbes, as well as inhibit the mRNA expressions of multiple inflammatory cytokines in oysters.
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Affiliation(s)
- Xiaoxue Yan
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Jiejie Sun
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China.
| | - Wenwen Yang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China; College of Life Sciences, Liaoning Normal University, Dalian, 116029, Liaoning, China
| | - Xiaopeng Li
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Qian Yang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Yinan Li
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China; College of Life Sciences, Liaoning Normal University, Dalian, 116029, Liaoning, China
| | - Wei Wu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China; College of Life Sciences, Liaoning Normal University, Dalian, 116029, Liaoning, China
| | - Ping Wei
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China.
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China
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Meyiah A, Mahmoodi Chalbatani G, Al-Mterin MA, Malekraeisi MA, Murshed K, Elkord E. Co-expression of PD-1 with TIGIT or PD-1 with TIM-3 on tumor-infiltrating CD8 + T cells showed synergistic effects on improved disease-free survival in treatment-naïve CRC patients. Int Immunopharmacol 2023; 119:110207. [PMID: 37099940 DOI: 10.1016/j.intimp.2023.110207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 04/28/2023]
Abstract
Immune checkpoints (ICs) are highly expressed on tumor-infiltrating immune cells (TIICs) in different malignancies, including colorectal cancer (CRC). T cells play crucial roles in shaping CRC, and their presence in the tumor microenvironment (TME) has proven to be one of the best predictors of clinical outcomes. A crucial component of the immune system is cytotoxic CD8+ T cells (CTLs), which play decisive roles in the prognosis of CRC. In this study, we investigated associations of immune checkpoints expressed on tumor-infiltrating CD8+ T cells with disease-free survival (DFS) in 45 naïve-treatment CRC patients. First, we examined the associations of single ICs, and found that CRC patients with higher levels of T-cell immunoglobulin and ITIM-domain (TIGIT), T-cell immunoglobulin and mucin domain-3 (TIM-3) and programmed cell death-1 (PD-1) CD8+ T cells tended to have longer DFS. Interestingly, when PD-1 expression was combined with other ICs, there were more evident and stronger associations between higher levels of PD-1+ with TIGIT+ or PD-1+ with TIM-3+ tumor-infiltrating CD8+ T cells and longer DFS. Our findings for TIGIT were validated in The Cancer Genome Atlas (TCGA) CRC dataset. This study is the first to report on the association of co-expression of PD-1 with TIGIT and PD-1 with TIM-3 in CD8+ T cells and improved DFS in treatment-naïve CRC patients. This work highlights the significance of immune checkpoint expression on tumor-infiltrating CD8+ T cells as critical predictive biomarkers, especially when co-expression of different ICs is considered.
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Affiliation(s)
- Abdo Meyiah
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa 616, Oman
| | | | - Mohamed A Al-Mterin
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa 616, Oman
| | | | - Khaled Murshed
- Department of Pathology, Hamad Medical Corporation, Doha, Qatar
| | - Eyad Elkord
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa 616, Oman; Department of Biological Sciences and Chemistry, Faculty of Arts and Sciences, University of Nizwa, Nizwa 616, Oman; Biomedical Research Center, School of Science, Engineering and Environment, University of Salford, Manchester, UK.
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Circulating and Tumor-Infiltrating Immune Checkpoint-Expressing CD8+ Treg/T Cell Subsets and Their Associations with Disease-Free Survival in Colorectal Cancer Patients. Cancers (Basel) 2022; 14:cancers14133194. [PMID: 35804964 PMCID: PMC9265020 DOI: 10.3390/cancers14133194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 01/03/2023] Open
Abstract
Simple Summary Colorectal cancer is one of the leading causes of global cancer-related mortality. Tumor-infiltrating effector immune cells play critical roles in tumor control, and their activity can dictate disease outcomes. In this study, we provide evidence of the associations between different CD8+ T cell subpopulations with disease-free survival (DFS) in CRC patients. We report associations between higher levels of certain circulating and tumor-infiltrating CD8+ T cell subsets and improved clinical outcomes in CRC patients. Abstract T cells in the tumor microenvironment (TME) have diverse roles in anti-tumor immunity, including orchestration of immune responses and anti-tumor cytotoxic attack. However, different T cell subsets may have opposing roles in tumor progression, especially in inflammation-related cancers such as colorectal cancer (CRC). In this study, we phenotypically characterized CD3+CD4- (CD8+) T cells in colorectal tumor tissues (TT), normal colon tissues (NT) and in circulation of CRC patients. We investigated the expression levels of key immune checkpoints (ICs) and Treg-related markers in CD8+ T cells. Importantly, we investigated associations between different tumor-infiltrating CD8+ T cell subpopulations and disease-free survival (DFS) in CRC patients. We found that FoxP3 expression and ICs including PD-1, CTLA-4, TIM-3, and LAG-3 were significantly increased in tumor-infiltrating CD8+ T cells compared with NT and peripheral blood. In the TME, we found that TIM-3 expression was significantly increased in patients with early stages and absent lymphovascular invasion (LVI) compared to patients with advanced stages and LVI. Importantly, we report that high levels of certain circulating CD8+ T cell subsets (TIM-3-expressing, FoxP3−Helios−TIM-3+ and FoxP3−Helios+TIM-3+ cells) in CRC patients were associated with better DFS. Moreover, in the TME, we report that elevated levels of CD25+ and TIM-3+ T cells, and FoxP3+Helios−TIM-3+ Tregs were associated with better DFS.
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Li Z, Wei J, Zheng H, Gan X, Song M, Zhang Y, Kong L, Zhang C, Yang J, Jin Y. m 6A regulator-mediated methylation modification patterns and tumor immune microenvironment in sarcoma. Aging (Albany NY) 2022; 14:330-353. [PMID: 34979500 PMCID: PMC8791212 DOI: 10.18632/aging.203807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/25/2021] [Indexed: 12/02/2022]
Abstract
Background: Studies have shown that the RNA N6-methyladenosine (m6A) modification patterns are extensively involved in the development of multiple tumors. However, the association between the m6A regulator expression patterns and the sarcoma tumor immune microenvironment (TIME) remains unclear. Methods: We systematically evaluated the m6A regulator expression patterns in patients with sarcoma based on known 23 m6A regulators. Different m6A regulator expression patterns were analyzed using gene set variation analysis and a single-sample gene set enrichment analysis algorithm. According to the results of consensus clustering, we classified the patients into four different clusters. Next, we subjected the four clusters to differential genetic analysis and established m6A-related differentially expressed genes (DEGs). We then calculated the m6A-related DEGs score and constructed the m6A-related gene signature, named m6A score. Finally, the 259 sarcoma samples were divided into high- and low-m6A score groups. We further evaluated the TIME landscape between the high- and low-m6A score groups. Results: We identified four different m6A modification clusters and found that each cluster had unique metabolic and immunological characteristics. Based on the 19 prognosis-related DEGs, we calculated the principal component analysis scores for each patient with sarcoma and classified them into high- and low-m6A score groups. Conclusions: The m6A regulator expression patterns and complexity of the sarcoma TIME landscape are closely related to each other. Systematic evaluation of m6A regulator expression patterns and m6A scores in patients with sarcoma will enhance our understanding of TIME characteristics.
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Affiliation(s)
- Zhehong Li
- Traumatology and Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, China
| | - Junqiang Wei
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Department of Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, China
| | - Honghong Zheng
- General Surgery, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, China
| | - Xintian Gan
- Traumatology and Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, China
| | - Mingze Song
- Traumatology and Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, China
| | - Yafang Zhang
- Traumatology and Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, China
| | - Lingwei Kong
- Traumatology and Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, China
| | - Chao Zhang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Jilong Yang
- Department of Bone and Soft Tissue Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Yu Jin
- Traumatology and Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, China
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Cong Y, Liu J, Chen G, Qiao G. The Emerging Role of T-Cell Immunoglobulin Mucin-3 in Breast Cancer: A Promising Target For Immunotherapy. Front Oncol 2021; 11:723238. [PMID: 34504800 PMCID: PMC8421567 DOI: 10.3389/fonc.2021.723238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/06/2021] [Indexed: 01/08/2023] Open
Abstract
Cancer treatment through immune checkpoint receptor blockade has made significant advances in the recent years. However, resistance to the current immune checkpoint inhibitors (ICIs) has been observed in many patients, who consequently do not respond to these treatments. T-cell immunoglobulin mucin-3 (Tim-3) is a novel immune checkpoint molecule emerging as a potential therapeutic target for cancer immunotherapy. Epidemiologic findings reveal that genetic polymorphisms in the Tim-3 gene are associated with increased susceptibility to breast cancer. In patients with breast cancer, Tim-3 is expressed both on immune and tumor cells. Accumulating evidence demonstrates that Tim-3 can notably affect breast cancer treatment outcome and prognosis. Therefore, Tim-3 is being regarded as a high-potential target for improving breast cancer therapy. In this review, we summarize the role of Tim-3 in breast cancer and the regulation mechanisms of Tim-3 to furnish evidences for future research and therapy.
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Affiliation(s)
- Yizi Cong
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Jing Liu
- Department of Pathology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Gang Chen
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Guangdong Qiao
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
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Tang XY, Shi AP, Xiong YL, Zheng KF, Liu YJ, Shi XG, Jiang T, Zhao JB. Clinical Research on the Mechanisms Underlying Immune Checkpoints and Tumor Metastasis. Front Oncol 2021; 11:693321. [PMID: 34367975 PMCID: PMC8339928 DOI: 10.3389/fonc.2021.693321] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 07/07/2021] [Indexed: 12/13/2022] Open
Abstract
This study highlights aspects of the latest clinical research conducted on the relationship between immune checkpoints and tumor metastasis. The overview of each immune checkpoint is divided into the following three sections: 1) structure and expression; 2) immune mechanism related to tumor metastasis; and 3) clinical research related to tumor metastasis. This review expands on the immunological mechanisms of 17 immune checkpoints, including TIM-3, CD47, and OX-40L, that mediate tumor metastasis; evidence shows that most of these immune checkpoints are expressed on the surface of T cells, which mainly exert immunomodulatory effects. Additionally, we have summarized the roles of these immune checkpoints in the diagnosis and treatment of metastatic tumors, as these checkpoints are considered common predictors of metastasis in various cancers such as prostate cancer, non-Hodgkin lymphoma, and melanoma. Moreover, certain immune checkpoints can be used in synergy with PD-1 and CTLA-4, along with the implementation of combination therapies such as LIGHT-VTR and anti-PD-1 antibodies. Presently, most monoclonal antibodies generated against immune checkpoints are under investigation as part of ongoing preclinical or clinical trials conducted to evaluate their efficacy and safety to establish a better combination treatment strategy; however, no significant progress has been made regarding monoclonal antibody targeting of CD28, VISTA, or VTCN1. The application of immune checkpoint inhibitors in early stage tumors to prevent tumor metastasis warrants further evidence; the immune-related adverse events should be considered before combination therapy. This review aims to elucidate the mechanisms of immune checkpoint and the clinical progress on their use in metastatic tumors reported over the last 5 years, which may provide insights into the development of novel therapeutic strategies that will assist with the utilization of various immune checkpoint inhibitors.
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Affiliation(s)
- Xi-Yang Tang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - An-Ping Shi
- Department of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, Fourth Military Medical University (Air Force Medical University), Xi'an, China
| | - Yan-Lu Xiong
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Kai-Fu Zheng
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Yu-Jian Liu
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Xian-Gui Shi
- College of Basic Medicine, Air Force Medical University, Xi'an, China
| | - Tao Jiang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Jin-Bo Zhao
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
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Low Distribution of TIM-3 + Cytotoxic Tumor-Infiltrating Lymphocytes Predicts Poor Outcomes in Gastrointestinal Stromal Tumors. J Immunol Res 2021; 2021:6647292. [PMID: 33681387 PMCID: PMC7907748 DOI: 10.1155/2021/6647292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/13/2020] [Accepted: 02/02/2021] [Indexed: 02/07/2023] Open
Abstract
There are multiple tumor-infiltrating lymphocytes (TILs) and relevant immune checkpoints existing in gastrointestinal stromal tumor (GIST), which provides opportunities and rationales for developing effective immunotherapies. Recent studies have suggested that checkpoint TIM-3/Gal-9 plays a pivotal role on immune response in multiple tumors, similar to the PD-1/PD-L1, emerging as a potential therapeutic target. However, their functions in GIST are unrevealed. Hence, the expression of immune checkpoints TIM-3 and Gal-9, as well as the infiltration of CD8+ T cells and NK cells, is described in 299 cases of GIST specimens. The results showed that TIM-3 and Gal-9 are mainly expressed in TILs, rarely in tumor cells. Expression levels of TIM-3 and Gal-9 significantly differ in varying risks of GIST and exert opposite distribution trends. Indicated by prognosis analysis, high TIM-3 expression of TILs was associated with improved outcome, while low expression levels of TIM-3 in combination with low amounts of CD8+ and CD56+ TILs predict extremely poor survival. The integrated analysis of TIM-3+, CD8+, and CD56+ TILs as one biomarker is a reliable independent predictor of prognosis. In conclusion, low densities of TIM-3+ TILs are associated with poor survival, and integrated immune biomarkers lead to superior predictors of GIST prognosis.
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Li J, Sun XF, Shen Y, Yang Q, Dai SY. Elevated Expression of T-Cell Immunoglobulin and Mucin Domain 3 on T Cells from Peripheral Blood in Patients with Cervical Carcinoma. Gynecol Obstet Invest 2020; 86:63-70. [PMID: 33279890 DOI: 10.1159/000511440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 08/30/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To investigate the expression of T-cell immunoglobulin and mucin domain 3 (TIM-3) on peripheral T cells of cervical carcinoma patients. METHODS Peripheral blood samples from 15 high-grade cervical squamous intraepithelial lesion (HSIL) patients, 24 cervical carcinoma patients, and 21 healthy controls were collected. TIM-3 expressions on the surface of peripheral CD4+ T cells and CD8+ T cells were analyzed with flow cytometry. RESULTS There was significantly lower expression of CD4+ T cells and CD8+ T cells in HSIL patients and cervical carcinoma patients compared with healthy controls. We also found that TIM-3 expression on peripheral CD4+ T and CD8+ T cells of both HSIL patients and cervical carcinoma patients was significantly increased compared to the control group. Further analyses revealed that the expression of TIM-3 on peripheral CD4+ T and CD8+ T cells significantly increased in stage III-IV cervical carcinoma patients compared to stages I-II. CONCLUSION The increased expression of TIM-3 on CD4+ T cells and CD8+ T cells of patients with cervical carcinoma and HSIL suggests the potential role of TIM-3 in the development and progression of cervical carcinoma, which may be a novel therapy target for cervical carcinoma.
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Affiliation(s)
- Juan Li
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiao-Fei Sun
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ying Shen
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qing Yang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shu-Yan Dai
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China,
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Varied functions of immune checkpoints during cancer metastasis. Cancer Immunol Immunother 2020; 70:569-588. [PMID: 32902664 PMCID: PMC7907026 DOI: 10.1007/s00262-020-02717-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 08/31/2020] [Indexed: 12/14/2022]
Abstract
Immune checkpoints comprise diverse receptors and ligands including costimulatory and inhibitory molecules, which play monumental roles in regulating the immune system. Immune checkpoints retain key potentials in maintaining the immune system homeostasis and hindering the malignancy development and autoimmunity. The expression of inhibitory immune checkpoints delineates an increase in a plethora of metastatic tumors and the inhibition of these immune checkpoints can be followed by promising results. On the other hand, the stimulation of costimulatory immune checkpoints can restrain the metastasis originating from diverse tumors. From the review above, key findings emerged regarding potential functions of inhibitory and costimulatory immune checkpoints targeting the metastatic cascade and point towards novel potential Achilles’ heels of cancer that might be exploited therapeutically in the future.
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Xiao Y, Qing J, Li B, Chen L, Nong S, Yang W, Tang X, Chen Z. TIM-3 Participates in the Invasion and Metastasis of Nasopharyngeal Carcinoma via SMAD7/SMAD2/SNAIL1 Axis-Mediated Epithelial-Mesenchymal Transition. Onco Targets Ther 2020; 13:1993-2006. [PMID: 32184631 PMCID: PMC7064287 DOI: 10.2147/ott.s237222] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 02/17/2020] [Indexed: 12/12/2022] Open
Abstract
Background T-cell immunoglobulin and mucin domain-containing molecule-3 (TIM-3) was originally found to negatively regulate immune response and mediate immune escape in tumors. Subsequently, an increasing body of evidence has shown that TIM-3 exerts positive functions in the development and progression of several tumors. However, the role of TIM-3 in nasopharyngeal carcinoma (NPC) remains unknown. Methods Data from the Cancer Genome Atlas-head and neck squamous cell carcinoma and immunohistochemistry were analyzed to compare the expression of TIM-3 in NPC and non-cancerous nasopharyngitis tissues. Cell proliferation was evaluated using the Cell counting kit-8 in vitro and xenograft experiment in nude mice in vivo. Flow cytometry was used to evaluate the cell cycle. The migration and invasion of NPC cells were assessed through wound healing and Transwell assays. In addition, Western blotting was used to analyze the expression of specific proteins. Results Higher expression of TIM-3 was detected in NPC tissues than normal nasopharyngeal tissues and positively correlated with the clinical stage and T classification; however, it was not correlated with gender, age, and N classification. Furthermore, overexpression of TIM-3 using lentiviral vectors increased the malignancy of 6-10B and CNE-2 cell lines that lowly express TIM-3, by promoting cell proliferation, migration, and invasion in vitro and in vivo. In addition, overexpression of TIM-3 was associated with upregulation of matrix metalloproteinase 9 (MMP9) and MMP2, and led to epithelial-mesenchymal transition (EMT) by increasing the levels of mesenchymal markers (ie, N-cadherin, Vimentin) and decreasing those of the epithelial marker E-cadherin. Further study showed that SMAD7 was downregulated in the TIM-3 overexpression group. Relatively, phosphorylated SMAD2 and downstream molecule SNAIL1 were also upregulated in this group. Conclusion TIM-3 exerts a tumor-promoting function in NPC by mediating changes in the SMAD7/SMAD2/SNAIL1 axis. These findings provide a new idea for the study of invasion, metastasis, and treatment of NPC.
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Affiliation(s)
- Yangyang Xiao
- Department of Clinical Laboratory, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, People's Republic of China
| | - Jilin Qing
- Center for Reproductive Medicine and Genetics, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, People's Republic of China
| | - Baoxuan Li
- Department of Ophthalmology, Binzhou Medical University Hospital, Binzhou, Shandong 256603, People's Republic of China
| | - Liuyan Chen
- Department of Clinical Laboratory, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, People's Republic of China
| | - Shengzhou Nong
- Department of Clinical Laboratory, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, People's Republic of China
| | - Wenhui Yang
- Department of Clinical Laboratory, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, People's Republic of China
| | - Xiaogang Tang
- Department of Intensive Care Unit, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, People's Republic of China
| | - Zhizhong Chen
- Department of Clinical Laboratory, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, People's Republic of China
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12
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Cong Y, Cui Y, Zhu S, Cao J, Zou H, Martin TA, Qiao G, Jiang W, Yu Z. Tim-3 promotes cell aggressiveness and paclitaxel resistance through NF-κB/STAT3 signalling pathway in breast cancer cells. Chin J Cancer Res 2020; 32:564-579. [PMID: 33223752 PMCID: PMC7666787 DOI: 10.21147/j.issn.1000-9604.2020.05.02] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objective Although T-cell immunoglobulin and mucin-domain containing molecule-3 (Tim-3) has been recognized as a promising target for cancer immunotherapy, its exact role in breast cancer has not been fully elucidated. Methods Tim-3 gene expression in breast cancer and its prognostic significance were analyzed. Associated mechanisms were then explored in vitro by establishing Tim-3-overexpressing breast cancer cells.
Results In a pooled analysis of The Cancer Genome Atlas (TCGA) database, Tim-3 gene expression levels were significantly higher (P<0.001) in breast cancer tissue, compared with normal tissues. Tim-3 was a prognosis indicator in breast cancer patients [relapse-free survival (RFS), P=0.004; overall survival (OS), P=0.099]. Tim-3 overexpression in Tim-3low breast cancer cells promoted aggressiveness of breast cancer cells, as evidenced by enhanced proliferation, migration, invasion, tight junction deterioration and tumor-associated tubal formation. Tim-3 also enhanced cellular resistance to paclitaxel. Furthermore, Tim-3 exerted its function by activating the NF-κB/STAT3 signalling pathway and by regulating gene expression [cyclin D1 (CCND1), C-Myc, matrix metalloproteinase-1(MMP1), TWIST, vascular endothelial growth factor (VEGF) upregulation, concomitant with E-cadherin downregulation). Lastly, Tim-3 downregulated tight junction-associated molecules zona occludens (ZO)-2, ZO-1 and occludin, which may further facilitate tumor progression.
Conclusions Tim-3 plays an oncogenic role in breast cancer and may represent a potential target for antitumor therapy.
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Affiliation(s)
- Yizi Cong
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, China.,Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264001, China
| | - Yuxin Cui
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Shiguang Zhu
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264001, China
| | - Jianqiao Cao
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264001, China
| | - Haidong Zou
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264001, China
| | - Tracey A Martin
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Guangdong Qiao
- Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264001, China
| | - Wenguo Jiang
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Zhigang Yu
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, China
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13
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Zhang X, Yin X, Zhang H, Sun G, Yang Y, Chen J, Shu K, Zhao J, Zhao P, Chen N, Wang J, Shen P, Zeng H. Differential expression of TIM-3 between primary and metastatic sites in renal cell carcinoma. BMC Cancer 2019; 19:49. [PMID: 30630458 PMCID: PMC6329070 DOI: 10.1186/s12885-019-5273-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 01/02/2019] [Indexed: 02/05/2023] Open
Abstract
Background Due to the significant heterogeneity of renal cell carcinoma (RCC), immune checkpoints may express differently between primary and metastatic tumor. We aimed to evaluate the differential expression of TIM-3 between the primary and metastatic sites of RCC. Methods Cases of RCC with metastases resected or biopsied at West China Hospital between January 2009 and November 2016 were included. Clinicopathological parameters were retrospectively extracted. SPPS 22.0, GraphPad Prism 6 and R statistical software were applied for data analysis. Results A total of 163 cases were included. Immunohistochemical results showed that the overall detection rate of TIM-3 was 56.4% (92/163). The detection rate of TIM-3 in the primary (53.0%, 44/83) was numerically higher than that of the metastasis (42.6%,79/174). Although the concordance rate of TIM-3 between the primary and metastasis was as high as 66.3% (55/83) in the paired cohort, a significant statistically difference of TIM-3 expression between the primary and metastasis was observed (χ2 = 4.664, p = 0.002), with a poor consistency (Kappa = 0.331, p = 0.002). Subsequent survival analysis suggested that TIM-3 expression either in the primary or metastatic tumor was associated with longer progression-free survival (PFS) (HR: 0.67, 95% CI 0.45–0.99, P = 0.02) and overall survival (OS) (HR: 0.52, 95% CI 0.33–0.82, P < 0.001). The expressions of TIM-3 in the primary, metastatic tumors and patients treated with targeted agents all played as favorable factors for PFS and OS. Further multivariate analysis showed that, in the whole cohort, TIM-3 expression in metastatic tumor increased the predicted accuracy (PA) of the whole model of PFS from 74.7 to 75.6% (P = 0.02). For OS, the PA of whole model was increased from 78.1 to 81.1% by adding TIM-3 expression in the metastasis (P = 0.005). The same trends were also observed in paired patients and patients treated with targeted agents. In conclusion, the expression difference between the primary and metastatic tumor of TIM-3 was significant. Biopsy or resection of the metastases may provide a more accurate biological information for clinician’s decision-making and the patient’s prognosis. What’s more, the role of TIM-3 in the RCC still remains controversy, further study are needed to verify the conclusion.
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Affiliation(s)
- Xingming Zhang
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Xiaoxue Yin
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Haoran Zhang
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Guangxi Sun
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Yaojing Yang
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Junru Chen
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Kunpeng Shu
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Jinge Zhao
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Peng Zhao
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Ni Chen
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Jia Wang
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China.,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041
| | - Pengfei Shen
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China. .,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041.
| | - Hao Zeng
- Department of Urology, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, China. .,Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China, 610041.
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Zhang L, Chen C, Duanmu J, Wu Y, Tao J, Yang A, Yin X, Xiong B, Gu J, Li C, Liu Z. Cryptotanshinone inhibits the growth and invasion of colon cancer by suppressing inflammation and tumor angiogenesis through modulating MMP/TIMP system, PI3K/Akt/mTOR signaling and HIF-1α nuclear translocation. Int Immunopharmacol 2018; 65:429-437. [PMID: 30388517 DOI: 10.1016/j.intimp.2018.10.035] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/24/2018] [Accepted: 10/24/2018] [Indexed: 12/22/2022]
Abstract
The aim of this study was to evaluate the pharmacological effects of CPT on CT26 colon cancer cells in vivo and in vitro, and to reveal the potential mechanism. CPT suppressed the proliferation and growth of CT26 colon cancer in vitro and in vivo. CPT inhibited the invasion of CT26 cells in vitro, and decreased the protein expressions of matrix metalloproteinase-2 (MMP-2) and MMP-9 but increased those of tissue inhibitor of metallopeptidase-1 (TIMP-1) and TIMP-2 in vitro and in vivo. It also inhibited tumor cell-induced angiogenesis of endothelial cells in vitro and rat aortic ring angiogenesis ex vivo, and possibly by suppressing angiogenesis-associated factors. CPT suppressed the expressions of inflammatory factors in vivo and in vitro. Mechanism studies showed that CPT inhibited the PI3K/AKT/mTOR signaling pathway, as evidenced by decreased expressions of phospho-PI3K (p-PI3K), p-Akt and p-mTOR. Moreover, CPT significantly suppressed the nuclear expression but increased the cytosolic expression of hypoxia inducible factor-1α (HIF-1α). Collectively, CPT inhibited the growth, invasion, inflammation and angiogenesis in CT26 colon cancer, and at least partly, by regulating the PI3K/Akt/mTOR signaling and the nuclear translocation of HIF-1α.
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Affiliation(s)
- Lin Zhang
- Department of Pharmacology, School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China
| | - Chang Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China
| | - Jiaxin Duanmu
- Department of Pharmacology, School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China
| | - Yan Wu
- The First Clinical Medical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Jinhua Tao
- Department of Pharmacology, School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China
| | - Aihua Yang
- Department of Clinical Pharmacy, Nantong Maternal and Child Health Hospital Affiliated to Nantong University, Nantong, Jiangsu 226018, China
| | - Xiaoqin Yin
- Department of pharmacy, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
| | - Biao Xiong
- Department of Pharmacology, School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China
| | - Jingya Gu
- Department of Pharmacology, School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China
| | - Chunling Li
- Department of Pharmacology, School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China
| | - Zhaoguo Liu
- Department of Pharmacology, School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong 226001, China.
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15
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Low TIM3 expression indicates poor prognosis of metastatic prostate cancer and acts as an independent predictor of castration resistant status. Sci Rep 2017; 7:8869. [PMID: 28827755 PMCID: PMC5567055 DOI: 10.1038/s41598-017-09484-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 07/26/2017] [Indexed: 12/02/2022] Open
Abstract
T cell immunoglobulin 3 (TIM3) is a cell surface star molecule expressed on T cells, and also marks dysfunctional CD8+ T cells in various kinds of cancers. However, there are few studies focusing on the expression of TIM3 in tumor cells. In our study, we recruited 139 patients with metastatic prostate cancer (mPCa) who received transurethral resection of the prostate (TURP) consecutively to examine whether TIM3 expression level is associated with overall survival (OS) in mPCa patients. Immunohistochemistry was performed to determine TIM3 expression in prostate cancer tissues and then patients were divided into two groups. In multivariate Cox analysis, we revealed that mPCa patients with negative TIM3 expression, younger age, no radiotherapy, higher Gleason score, higher cT stage and patients of mCRPC had a shorter OS. Therefore, a predictive nomogram was generated with identified independent prognostic factors to assess patients’ OS at 3 years. Multivariate logistic regression revealed that higher cT stage, higher Gleason score and low TIM3 expression were independent predictors of metastatic castration resistant prostate cancer (mCRPC). In conclusion, low expression level of TIM3 in prostate cancer tissues is an independent prognostic factor of poor prognosis for mPCa patients, and also an independent predictor of mCRPC.
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