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Tang D, Liu M, Gao S, Sun H, Peng Y, Li Y, Wang Y, Wang X, Chen H. Thermally engineered MSC-derived extracellular vesicles ameliorate colitis in mice by restoring the imbalanced Th17/Treg cell ratio. Int Immunopharmacol 2023; 125:111077. [PMID: 38149575 DOI: 10.1016/j.intimp.2023.111077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/28/2023] [Accepted: 10/11/2023] [Indexed: 12/28/2023]
Abstract
Mesenchymal stem cell (MSC)-derived extracellular vesicles (EVs) have garnered extensive interest for their immunomodulatory properties in immune-mediated inflammatory diseases. However, the development of EVs as clinical drugs often faces challenges such as low production yield and suboptimal therapeutic efficacy. In this study, we discovered that thermally engineering was able to enhance the yield of MSC-EVs. Moreover, the PD-L1 expression of EVs released from the thermal engineering MSCs was found to be upregulated significantly, and these EVs ameliorated the symptoms and pathological damages in murine dextran sulfate sodium (DSS)-induced colitis model. The therapeutic effect on DSS-induced colitis was mediated through the regulation of the Th17/Treg cell balance, demonstrating the immunomodulatory properties of the thermally engineering MSC-EVs. Overall, our findings suggest that thermal engineering can be utilized as a promising strategy for enhancing EV production and may provide a potential therapeutic approach for clinical treatment of colitis.
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Affiliation(s)
- Deqian Tang
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China; Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
| | - Manqing Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China; Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
| | - Shenghan Gao
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China; Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China; School of Clinical Medicine, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Haipeng Sun
- Department of Prosthodontics and Implantology, Shenzhen University Affiliated Shenzhen Stomatology Hospital, Shenzhen 518000, Guangdong Province, China
| | - Yingying Peng
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China; Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
| | - Yi Li
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China; Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
| | - Yan Wang
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China; Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
| | - Xiaoxiao Wang
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China; Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China; Department of Prosthodontics and Implantology, Shenzhen University Affiliated Shenzhen Stomatology Hospital, Shenzhen 518000, Guangdong Province, China; Department of Stomatology, Shenzhen Qianhai Taikang Hospital, No.3099, Menghai Avenue, Nanshan District, Shenzhen 518000, China.
| | - Huan Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China; Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China.
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Stone TW, Williams RO. Interactions of IDO and the Kynurenine Pathway with Cell Transduction Systems and Metabolism at the Inflammation-Cancer Interface. Cancers (Basel) 2023; 15:cancers15112895. [PMID: 37296860 DOI: 10.3390/cancers15112895] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 06/12/2023] Open
Abstract
The mechanisms underlying a relationship between inflammation and cancer are unclear, but much emphasis has been placed on the role of tryptophan metabolism to kynurenine and downstream metabolites, as these make a substantial contribution to the regulation of immune tolerance and susceptibility to cancer. The proposed link is supported by the induction of tryptophan metabolism by indoleamine-2,3-dioxygenase (IDO) or tryptophan-2,3-dioxygenase (TDO), in response to injury, infection or stress. This review will summarize the kynurenine pathway and will then focus on the bi-directional interactions with other transduction pathways and cancer-related factors. The kynurenine pathway can interact with and modify activity in many other transduction systems, potentially generating an extended web of effects other than the direct effects of kynurenine and its metabolites. Conversely, the pharmacological targeting of those other systems could greatly enhance the efficacy of changes in the kynurenine pathway. Indeed, manipulating those interacting pathways could affect inflammatory status and tumor development indirectly via the kynurenine pathway, while pharmacological modulation of the kynurenine pathway could indirectly influence anti-cancer protection. While current efforts are progressing to account for the failure of selective IDO1 inhibitors to inhibit tumor growth and to devise means of circumventing the issue, it is clear that there are wider factors involving the relationship between kynurenines and cancer that merit detailed consideration as alternative drug targets.
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Affiliation(s)
- Trevor W Stone
- The Kennedy Institute of Rheumatology, NDORMS, University of Oxford, Oxford OX3 7FY, UK
| | - Richard O Williams
- The Kennedy Institute of Rheumatology, NDORMS, University of Oxford, Oxford OX3 7FY, UK
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Dialog beyond the Grave: Necrosis in the Tumor Microenvironment and Its Contribution to Tumor Growth. Int J Mol Sci 2023; 24:ijms24065278. [PMID: 36982351 PMCID: PMC10049335 DOI: 10.3390/ijms24065278] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Damage-associated molecular patterns (DAMPs) are endogenous molecules released from the necrotic cells dying after exposure to various stressors. After binding to their receptors, they can stimulate various signaling pathways in target cells. DAMPs are especially abundant in the microenvironment of malignant tumors and are suspected to influence the behavior of malignant and stromal cells in multiple ways often resulting in promotion of cell proliferation, migration, invasion, and metastasis, as well as increased immune evasion. This review will start with a reminder of the main features of cell necrosis, which will be compared to other forms of cell death. Then we will summarize the various methods used to assess tumor necrosis in clinical practice including medical imaging, histopathological examination, and/or biological assays. We will also consider the importance of necrosis as a prognostic factor. Then the focus will be on the DAMPs and their role in the tumor microenvironment (TME). We will address not only their interactions with the malignant cells, frequently leading to cancer progression, but also with the immune cells and their contribution to immunosuppression. Finally, we will emphasize the role of DAMPs released by necrotic cells in the activation of Toll-like receptors (TLRs) and the possible contributions of TLRs to tumor development. This last point is very important for the future of cancer therapeutics since there are attempts to use TLR artificial ligands for cancer therapeutics.
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Mukherji R, Debnath D, Hartley ML, Noel MS. The Role of Immunotherapy in Pancreatic Cancer. Curr Oncol 2022; 29:6864-6892. [PMID: 36290818 PMCID: PMC9600738 DOI: 10.3390/curroncol29100541] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/09/2022] [Accepted: 09/15/2022] [Indexed: 01/13/2023] Open
Abstract
Pancreatic adenocarcinoma remains one of the most lethal cancers globally, with a significant need for improved therapeutic options. While the recent breakthroughs of immunotherapy through checkpoint inhibitors have dramatically changed treatment paradigms in other malignancies based on considerable survival benefits, this is not so for pancreatic cancer. Chemotherapies with modest benefits are still the cornerstone of advanced pancreatic cancer treatment. Pancreatic cancers are inherently immune-cold tumors and have been largely refractory to immunotherapies in clinical trials. Understanding and overcoming the current failures of immunotherapy through elucidating resistance mechanisms and developing novel therapeutic approaches are essential to harnessing the potential durable benefits of immune-modulating therapy in pancreatic cancer patients.
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Affiliation(s)
- Reetu Mukherji
- The Ruesch Center for the Cure of Gastrointestinal Cancers, Georgetown Lombardi Comprehensive Cancer Center, Division of Hematology and Oncology, Medstar Georgetown University Hospital, 3800 Reservoir Road NW, Washington, DC 20007, USA
| | - Dipanjan Debnath
- Department of Internal Medicine, Medstar Washington Hospital Center, 110 Irving Street NW, Washington, DC 20010, USA
| | - Marion L. Hartley
- The Ruesch Center for the Cure of Gastrointestinal Cancers, Georgetown Lombardi Comprehensive Cancer Center, Division of Hematology and Oncology, Medstar Georgetown University Hospital, 3800 Reservoir Road NW, Washington, DC 20007, USA
| | - Marcus S. Noel
- The Ruesch Center for the Cure of Gastrointestinal Cancers, Georgetown Lombardi Comprehensive Cancer Center, Division of Hematology and Oncology, Medstar Georgetown University Hospital, 3800 Reservoir Road NW, Washington, DC 20007, USA
- Correspondence:
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Ren X, Li T, Zhang W, Yang X. Targeting Heat-Shock Protein 90 in Cancer: An Update on Combination Therapy. Cells 2022; 11:cells11162556. [PMID: 36010632 PMCID: PMC9406578 DOI: 10.3390/cells11162556] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/14/2022] [Accepted: 08/15/2022] [Indexed: 11/16/2022] Open
Abstract
Heat-shock protein 90 (HSP90) is an important molecule chaperone associated with tumorigenesis and malignancy. HSP90 is involved in the folding and maturation of a wide range of oncogenic clients, including diverse kinases, transcription factors and oncogenic fusion proteins. Therefore, it could be argued that HSP90 facilitates the malignant behaviors of cancer cells, such as uncontrolled proliferation, chemo/radiotherapy resistance and immune evasion. The extensive associations between HSP90 and tumorigenesis indicate substantial therapeutic potential, and many HSP90 inhibitors have been developed. However, due to HSP90 inhibitor toxicity and limited efficiency, none have been approved for clinical use as single agents. Recent results suggest that combining HSP90 inhibitors with other anticancer therapies might be a more advisable strategy. This review illustrates the role of HSP90 in cancer biology and discusses the therapeutic value of Hsp90 inhibitors as complements to current anticancer therapies.
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Affiliation(s)
- Xiude Ren
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China
- Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin 300052, China
| | - Tao Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China
- Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin 300052, China
| | - Wei Zhang
- Departments of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
- Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC 27157, USA
- Correspondence: (W.Z.); (X.Y.)
| | - Xuejun Yang
- Department of Neurosurgery, Tsinghua University Beijing Tsinghua Changgung Hospital, Beijing 102218, China
- Correspondence: (W.Z.); (X.Y.)
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