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Pyaram K, Chang CH. NKT Cells and Other Innate T Cells: The Immune Cells That Do Not Follow the Rules. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:3-5. [PMID: 38885470 DOI: 10.4049/jimmunol.2400243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 05/01/2024] [Indexed: 06/20/2024]
Abstract
This Pillars of Immunology article is a commentary on “A subset of CD4+ thymocytes selected by MHC class I molecules,” a pivotal article by A. Bendelac, N. Killeen, D.R. Littman, and R.H. Schwartz published in Science in 1994, marking the discovery of NKT cells and paving the way for the identification and characterization of other innate T cells. https://doi.org/10.1126/science.7907820.
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Affiliation(s)
- Kalyani Pyaram
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS
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Fang Y, Li Z, Yang L, Li W, Wang Y, Kong Z, Miao J, Chen Y, Bian Y, Zeng L. Emerging roles of lactate in acute and chronic inflammation. Cell Commun Signal 2024; 22:276. [PMID: 38755659 PMCID: PMC11097486 DOI: 10.1186/s12964-024-01624-8] [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: 01/01/2024] [Accepted: 04/20/2024] [Indexed: 05/18/2024] Open
Abstract
Traditionally, lactate has been considered a 'waste product' of cellular metabolism. Recent findings have shown that lactate is a substance that plays an indispensable role in various physiological cellular functions and contributes to energy metabolism and signal transduction during immune and inflammatory responses. The discovery of lactylation further revealed the role of lactate in regulating inflammatory processes. In this review, we comprehensively summarize the paradoxical characteristics of lactate metabolism in the inflammatory microenvironment and highlight the pivotal roles of lactate homeostasis, the lactate shuttle, and lactylation ('lactate clock') in acute and chronic inflammatory responses from a molecular perspective. We especially focused on lactate and lactate receptors with either proinflammatory or anti-inflammatory effects on complex molecular biological signalling pathways and investigated the dynamic changes in inflammatory immune cells in the lactate-related inflammatory microenvironment. Moreover, we reviewed progress on the use of lactate as a therapeutic target for regulating the inflammatory response, which may provide a new perspective for treating inflammation-related diseases.
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Affiliation(s)
- Yunda Fang
- School of First Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zhengjun Li
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- College of Health Economics Management, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Lili Yang
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Jingwen Library, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Wen Li
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- School of Acupuncture-Moxibustion and Tuina, ·School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yutong Wang
- School of Acupuncture-Moxibustion and Tuina, ·School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Ziyang Kong
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- School of Acupuncture-Moxibustion and Tuina, ·School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jia Miao
- School of First Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yanqi Chen
- School of First Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yaoyao Bian
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
- School of Acupuncture-Moxibustion and Tuina, ·School of Health Preservation and Rehabilitation, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
- TCM Rehabilitation Center, Jiangsu Second Chinese Medicine Hospital, Nanjing, 210023, China.
| | - Li Zeng
- Jiangsu Provincial Engineering Research Center of TCM External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
- Faculty of Chinese Medicine, Macau University of Science and Technology, Taipa, Macau, 999078, China.
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Yu T, Liu Z, Tao Q, Xu X, Li X, Li Y, Chen M, Liu R, Chen D, Wu M, Yu J. Targeting tumor-intrinsic SLC16A3 to enhance anti-PD-1 efficacy via tumor immune microenvironment reprogramming. Cancer Lett 2024; 589:216824. [PMID: 38522774 DOI: 10.1016/j.canlet.2024.216824] [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: 01/09/2024] [Revised: 03/17/2024] [Accepted: 03/18/2024] [Indexed: 03/26/2024]
Abstract
Immunotherapy, especially immune checkpoint inhibitors, has revolutionized clinical practice within the last decade. However, primary and secondary resistance to immunotherapy is common in patients with diverse types of cancer. It is well-acknowledged that tumor cells can facilitate the formation of immunosuppressive microenvironments via metabolism reprogramming, and lactic acid, the metabolite of glycolysis, is a significant contributor. SLC16A3 (also named as MCT4) is a transporter mediating lactic acid efflux. In this study, we investigated the role of glycolysis in immunotherapy resistance and aimed to improve the immunotherapy effects via Slc16a3 inhibition. Bioinformatical analysis revealed that the expression of glycolysis-related genes correlated with less CD8+ T cell infiltration and increased myeloid-derived suppressor cells (MDSC) enrichment. We found that high glycolytic activity in tumor cells adversely affected the antitumor immune responses and efficacy of immunotherapy and radiotherapy. As the transporter of lactic acid, SLC16A3 is highly expressed in glycolytic B16-F10 (RRID: CVCL_0159) cells, as well as human non-small cell lung carcinoma. We validated that Slc16a3 expression in tumor cells negatively correlated with anti-PD-1 efficiency. Overexpression of Slc16a3 in tumor cells promoted lactic acid production and efflux, and reduced tumor response to anti-PD-1 inhibitors by inhibiting CD8+ T cell function. Genetic and pharmacological inhibition of Slc16a3 dramatically reduced the glycolytic activity and lactic acid production in tumor cells, and ameliorated the immunosuppressive tumor microenvironments (TMEs), leading to boosted antitumor effects via anti-PD-1 blockade. Our study therefore demonstrates that tumor cell-intrinsic SLC16A3 may be a potential target to reverse tumor resistance to immunotherapy.
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Affiliation(s)
- Ting Yu
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; Department of Oncology, Shandong University Cancer Center, Jinan, 250117, Shandong, PR China; Tianjin Medical University Cancer Institute &Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, PR China; Cancer Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, PR China
| | - Zhaoyun Liu
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; Department of Oncology, Shandong University Cancer Center, Jinan, 250117, Shandong, PR China
| | - Qingxu Tao
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China
| | - Xin Xu
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; Tianjin Medical University Cancer Institute &Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, PR China
| | - Xinyang Li
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; School of Clinical Medicine, Weifang Medical University, Weifang, Shandong, PR China
| | - Yang Li
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; Department of Oncology, Shandong University Cancer Center, Jinan, 250117, Shandong, PR China
| | - Minxin Chen
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; Department of Oncology, Shandong University Cancer Center, Jinan, 250117, Shandong, PR China
| | - Rufei Liu
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; Department of Oncology, Shandong University Cancer Center, Jinan, 250117, Shandong, PR China
| | - Dawei Chen
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; Department of Oncology, Shandong University Cancer Center, Jinan, 250117, Shandong, PR China
| | - Meng Wu
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; Department of Oncology, Shandong University Cancer Center, Jinan, 250117, Shandong, PR China.
| | - Jinming Yu
- Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, PR China; Department of Oncology, Shandong University Cancer Center, Jinan, 250117, Shandong, PR China; Research Unit of Radiation Oncology, Chinese Academy of Medical Sciences, Jinan, Shandong, PR China.
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Jiang W, Xu S, Li P. SLC2A3 promotes tumor progression through lactic acid-promoted TGF-β signaling pathway in oral squamous cell carcinoma. PLoS One 2024; 19:e0301724. [PMID: 38625978 PMCID: PMC11020985 DOI: 10.1371/journal.pone.0301724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/21/2024] [Indexed: 04/18/2024] Open
Abstract
BACKGROUNDS Oral squamous cell carcinoma is a malignant tumor of the head and neck, and its molecular mechanism remains to be explored. METHODS By analyzing the OSCC data from the TCGA database, we found that SLC2A3 is highly expressed in OSCC patients. The expression level of SLC2A3 was verified by RT-PCR and western blotting in OSCC cell lines. The function of SLC2A3 in OSCC cell lines and Lactic acid in SLC2A3-knockdown OSCC cells were detected by colony formation, CCK8, transwell, and wound healing assays. The effect of SLC2A3 on tumor growth and metastasis was tested in vivo. GSEA and Western blot were used to analyze and validate tumor phenotypes and signaling pathway molecules. RESULTS We analyzed OSCC datasets in the TCGA database and found that SLC2A3 had abnormally high expression and was associated with poor prognosis. We also found that oral squamous cell carcinoma cells had increased proliferation, migration, invasion, EMT phenotype, and glycolysis due to SLC2A3 overexpression. Conversely, SLC2A3 knockdown had the opposite effect. Our in vivo experiments confirmed that SLC2A3 overexpression promoted tumor growth and metastasis while knockdown inhibited it. We also observed that high SLC2A3 expression led to EMT and the activation of the TGF-β signaling pathway, while knockdown inhibited it. Interestingly, exogenous lactic acid restored the EMT, proliferation, migration, and invasion abilities of oral cancer cells inhibited by knocking down SLC2A3. CONCLUSIONS Our study reveals that SLC2A3 expression was up-regulated in OSCC. SLC2A3 activates the TGF-β signaling pathway through lactic acid generated from glycolysis, thus regulating the biological behavior of OSCC.
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Affiliation(s)
- Wei Jiang
- Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
- College of Stomatology, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Sheng Xu
- Department of Dental Laboratory, Guangxi Medical University College of Stomatology, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Ping Li
- Department of Pathology, Guangxi Medical University College of Stomatology, Nanning, Guangxi Zhuang Autonomous Region, China
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Fan Y, Li L, Sun S. Powerful and accurate detection of temporal gene expression patterns from multi-sample multi-stage single-cell transcriptomics data with TDEseq. Genome Biol 2024; 25:96. [PMID: 38622747 PMCID: PMC11020788 DOI: 10.1186/s13059-024-03237-3] [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: 09/22/2023] [Accepted: 04/03/2024] [Indexed: 04/17/2024] Open
Abstract
We present a non-parametric statistical method called TDEseq that takes full advantage of smoothing splines basis functions to account for the dependence of multiple time points in scRNA-seq studies, and uses hierarchical structure linear additive mixed models to model the correlated cells within an individual. As a result, TDEseq demonstrates powerful performance in identifying four potential temporal expression patterns within a specific cell type. Extensive simulation studies and the analysis of four published scRNA-seq datasets show that TDEseq can produce well-calibrated p-values and up to 20% power gain over the existing methods for detecting temporal gene expression patterns.
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Affiliation(s)
- Yue Fan
- Center for Single-Cell Omics and Health, School of Public Health, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
- Collaborative Innovation Center of Endemic Diseases and Health Promotion in Silk Road Region; NHC Key Laboratory of Environment and Endemic Diseases, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Lei Li
- Center for Single-Cell Omics and Health, School of Public Health, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
- Collaborative Innovation Center of Endemic Diseases and Health Promotion in Silk Road Region; NHC Key Laboratory of Environment and Endemic Diseases, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Shiquan Sun
- Center for Single-Cell Omics and Health, School of Public Health, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China.
- Collaborative Innovation Center of Endemic Diseases and Health Promotion in Silk Road Region; NHC Key Laboratory of Environment and Endemic Diseases, Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China.
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi, 710061, People's Republic of China.
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an, Shaanxi, 710061, People's Republic of China.
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Zhang X, Ma H, Gao Y, Liang Y, Du Y, Hao S, Ni T. The Tumor Microenvironment: Signal Transduction. Biomolecules 2024; 14:438. [PMID: 38672455 PMCID: PMC11048169 DOI: 10.3390/biom14040438] [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: 03/06/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
In the challenging tumor microenvironment (TME), tumors coexist with diverse stromal cell types. During tumor progression and metastasis, a reciprocal interaction occurs between cancer cells and their environment. These interactions involve ongoing and evolving paracrine and proximal signaling. Intrinsic signal transduction in tumors drives processes such as malignant transformation, epithelial-mesenchymal transition, immune evasion, and tumor cell metastasis. In addition, cancer cells embedded in the tumor microenvironment undergo metabolic reprogramming. Their metabolites, serving as signaling molecules, engage in metabolic communication with diverse matrix components. These metabolites act as direct regulators of carcinogenic pathways, thereby activating signaling cascades that contribute to cancer progression. Hence, gaining insights into the intrinsic signal transduction of tumors and the signaling communication between tumor cells and various matrix components within the tumor microenvironment may reveal novel therapeutic targets. In this review, we initially examine the development of the tumor microenvironment. Subsequently, we delineate the oncogenic signaling pathways within tumor cells and elucidate the reciprocal communication between these pathways and the tumor microenvironment. Finally, we give an overview of the effect of signal transduction within the tumor microenvironment on tumor metabolism and tumor immunity.
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Affiliation(s)
- Xianhong Zhang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Institutes of Biomedical Sciences, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (X.Z.); (Y.G.); (Y.L.); (Y.D.)
| | - Haijun Ma
- Key Laboratory of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, School of Life Sciences, Ningxia University, Yinchuan 750021, China;
| | - Yue Gao
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Institutes of Biomedical Sciences, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (X.Z.); (Y.G.); (Y.L.); (Y.D.)
| | - Yabing Liang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Institutes of Biomedical Sciences, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (X.Z.); (Y.G.); (Y.L.); (Y.D.)
| | - Yitian Du
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Institutes of Biomedical Sciences, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (X.Z.); (Y.G.); (Y.L.); (Y.D.)
| | - Shuailin Hao
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Institutes of Biomedical Sciences, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (X.Z.); (Y.G.); (Y.L.); (Y.D.)
| | - Ting Ni
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Institutes of Biomedical Sciences, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China; (X.Z.); (Y.G.); (Y.L.); (Y.D.)
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Sonkodi B. Progressive Irreversible Proprioceptive Piezo2 Channelopathy-Induced Lost Forced Peripheral Oscillatory Synchronization to the Hippocampal Oscillator May Explain the Onset of Amyotrophic Lateral Sclerosis Pathomechanism. Cells 2024; 13:492. [PMID: 38534336 DOI: 10.3390/cells13060492] [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: 01/13/2024] [Revised: 02/18/2024] [Accepted: 02/28/2024] [Indexed: 03/28/2024] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a mysterious lethal multisystem neurodegenerative disease that gradually leads to the progressive loss of motor neurons. A recent non-contact dying-back injury mechanism theory for ALS proposed that the primary damage is an acquired irreversible intrafusal proprioceptive terminal Piezo2 channelopathy with underlying genetic and environmental risk factors. Underpinning this is the theory that excessively prolonged proprioceptive mechanotransduction under allostasis may induce dysfunctionality in mitochondria, leading to Piezo2 channelopathy. This microinjury is suggested to provide one gateway from physiology to pathophysiology. The chronic, but not irreversible, form of this Piezo2 channelopathy is implicated in many diseases with unknown etiology. Dry eye disease is one of them where replenishing synthetic proteoglycans promote nerve regeneration. Syndecans, especially syndecan-3, are proposed as the first critical link in this hierarchical ordered depletory pathomechanism as proton-collecting/distributing antennas; hence, they may play a role in ALS pathomechanism onset. Even more importantly, the shedding or charge-altering variants of Syndecan-3 may contribute to the Piezo2 channelopathy-induced disruption of the Piezo2-initiated proton-based ultrafast long-range signaling through VGLUT1 and VGLUT2. Thus, these alterations may not only cause disruption to ultrafast signaling to the hippocampus in conscious proprioception, but could disrupt the ultrafast proprioceptive signaling feedback to the motoneurons. Correspondingly, an inert Piezo2-initiated proton-based ultrafast signaled proprioceptive skeletal system is coming to light that is suggested to be progressively lost in ALS. In addition, the lost functional link of the MyoD family of inhibitor proteins, as auxiliary subunits of Piezo2, may not only contribute to the theorized acquired Piezo2 channelopathy, but may explain how these microinjured ion channels evolve to be principal transcription activators.
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Affiliation(s)
- Balázs Sonkodi
- Department of Health Sciences and Sport Medicine, Hungarian University of Sports Science, 1123 Budapest, Hungary
- Department of Sports Medicine, Semmelweis University, 1122 Budapest, Hungary
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Kamii Y, Hayashizaki K, Kanno T, Chiba A, Ikegami T, Saito M, Akeda Y, Ohteki T, Kubo M, Yoshida K, Kawakami K, Oishi K, Araya J, Kuwano K, Kronenberg M, Endo Y, Kinjo Y. IL-27 regulates the differentiation of follicular helper NKT cells via metabolic adaptation of mitochondria. Proc Natl Acad Sci U S A 2024; 121:e2313964121. [PMID: 38394242 PMCID: PMC10907256 DOI: 10.1073/pnas.2313964121] [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: 08/18/2023] [Accepted: 01/12/2024] [Indexed: 02/25/2024] Open
Abstract
Invariant natural killer T (iNKT) cells are innate-like T lymphocytes that express an invariant T cell receptor α chain and contribute to bridging innate and acquired immunity with rapid production of large amounts of cytokines after stimulation. Among effecter subsets of iNKT cells, follicular helper NKT (NKTFH) cells are specialized to help B cells. However, the mechanisms of NKTFH cell differentiation remain to be elucidated. In this report, we studied the mechanism of NKTFH cell differentiation induced by pneumococcal surface protein A and α-galactosylceramide (P/A) vaccination. We found that Gr-1+ cells helped iNKT cell proliferation and NKTFH cell differentiation in the spleen by producing interleukin-27 (IL-27) in the early phase after vaccination. The neutralization of IL-27 impaired NKTFH cell differentiation, which resulted in compromised antibody production and diminished protection against Streptococcus pneumoniae infection by the P/A vaccine. Our data indicated that Gr-1+ cell-derived IL-27 stimulated mitochondrial metabolism, meeting the energic demand required for iNKT cells to differentiate into NKTFH cells. Interestingly, Gr-1+ cell-derived IL-27 was induced by iNKT cells via interferon-γ production. Collectively, our findings suggest that optimizing the metabolism of iNKT cells was essential for acquiring specific effector functions, and they provide beneficial knowledge on iNKT cell-mediated vaccination-mediated therapeutic strategies.
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Affiliation(s)
- Yasuhiro Kamii
- Department of Bacteriology, The Jikei University School of Medicine, Tokyo105-8461, Japan
- Division of Respiratory Diseases, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo105-8461, Japan
| | - Koji Hayashizaki
- Department of Bacteriology, The Jikei University School of Medicine, Tokyo105-8461, Japan
- Jikei Center for Biofilm Science and Technology, The Jikei University School of Medicine, Tokyo105-8461, Japan
| | - Toshio Kanno
- Department of Frontier Research and Development, Laboratory of Medical Omics Research, Kazusa DNA Research Institute, Chiba292-0818, Japan
| | - Akio Chiba
- Department of Bacteriology, The Jikei University School of Medicine, Tokyo105-8461, Japan
- Jikei Center for Biofilm Science and Technology, The Jikei University School of Medicine, Tokyo105-8461, Japan
| | - Taku Ikegami
- Department of Bacteriology, The Jikei University School of Medicine, Tokyo105-8461, Japan
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo105-8461, Japan
| | - Mitsuru Saito
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo105-8461, Japan
| | - Yukihiro Akeda
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo162-8640, Japan
| | - Toshiaki Ohteki
- Department of Biodefense Research, Medical Research Institute, Tokyo Medical and Dental University, Tokyo113-8510, Japan
| | - Masato Kubo
- Division of Molecular Pathology, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba278-0022, Japan
| | - Kiyotsugu Yoshida
- Department of Biochemistry, The Jikei University School of Medicine, Tokyo105-8461, Japan
| | - Kazuyoshi Kawakami
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi980-8575, Japan
| | | | - Jun Araya
- Division of Respiratory Diseases, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo105-8461, Japan
| | - Kazuyoshi Kuwano
- Division of Respiratory Diseases, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo105-8461, Japan
| | - Mitchell Kronenberg
- La Jolla Institute for Immunology, La Jolla, CA92037
- Department of Molecular Biology, University of California, San Diego, La Jolla, CA92093
| | - Yusuke Endo
- Department of Frontier Research and Development, Laboratory of Medical Omics Research, Kazusa DNA Research Institute, Chiba292-0818, Japan
| | - Yuki Kinjo
- Department of Bacteriology, The Jikei University School of Medicine, Tokyo105-8461, Japan
- Jikei Center for Biofilm Science and Technology, The Jikei University School of Medicine, Tokyo105-8461, Japan
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9
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Cui G, Abe S, Kato R, Ikuta K. Insights into the heterogeneity of iNKT cells: tissue-resident and circulating subsets shaped by local microenvironmental cues. Front Immunol 2024; 15:1349184. [PMID: 38440725 PMCID: PMC10910067 DOI: 10.3389/fimmu.2024.1349184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/06/2024] [Indexed: 03/06/2024] Open
Abstract
Invariant natural killer T (iNKT) cells are a distinct subpopulation of innate-like T lymphocytes. They are characterized by semi-invariant T cell receptors (TCRs) that recognize both self and foreign lipid antigens presented by CD1d, a non-polymorphic MHC class I-like molecule. iNKT cells play a critical role in stimulating innate and adaptive immune responses, providing an effective defense against infections and cancers, while also contributing to chronic inflammation. The functions of iNKT cells are specific to their location, ranging from lymphoid to non-lymphoid tissues, such as the thymus, lung, liver, intestine, and adipose tissue. This review aims to provide insights into the heterogeneity of development and function in iNKT cells. First, we will review the expression of master transcription factors that define subsets of iNKT cells and their production of effector molecules such as cytokines and granzymes. In this article, we describe the gene expression profiles contributing to the kinetics, distribution, and cytotoxicity of iNKT cells across different tissue types. We also review the impact of cytokine production in distinct immune microenvironments on iNKT cell heterogeneity, highlighting a recently identified circulating iNKT cell subset. Additionally, we explore the potential of exploiting iNKT cell heterogeneity to create potent immunotherapies for human cancers in the future.
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Affiliation(s)
- Guangwei Cui
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Shinya Abe
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Ryoma Kato
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
- Faculty of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
| | - Koichi Ikuta
- Laboratory of Immune Regulation, Department of Virus Research, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
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10
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Berlin C, Mauerer B, Cauchy P, Luenstedt J, Sankowski R, Marx L, Feuerstein R, Schaefer L, Greten FR, Pesic M, Groß O, Prinz M, Ruehl N, Miketiuk L, Jauch D, Laessle C, Jud A, Biesel EA, Neeff H, Fichtner-Feigl S, Holzner PA, Kesselring R. Single-cell deconvolution reveals high lineage- and location-dependent heterogeneity in mesenchymal multivisceral stage 4 colorectal cancer. J Clin Invest 2023; 134:e169576. [PMID: 38153787 PMCID: PMC10904044 DOI: 10.1172/jci169576] [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: 02/08/2023] [Accepted: 12/20/2023] [Indexed: 12/30/2023] Open
Abstract
Metastasized colorectal cancer (CRC) is associated with a poor prognosis and rapid disease progression. Besides hepatic metastasis, peritoneal carcinomatosis is the major cause of death in Union for International Cancer Control (UICC) stage IV CRC patients. Insights into differential site-specific reconstitution of tumor cells and the corresponding tumor microenvironment are still missing. Here, we analyzed the transcriptome of single cells derived from murine multivisceral CRC and delineated the intermetastatic cellular heterogeneity regarding tumor epithelium, stroma, and immune cells. Interestingly, we found an intercellular site-specific network of cancer-associated fibroblasts and tumor epithelium during peritoneal metastasis as well as an autologous feed-forward loop in cancer stem cells. We furthermore deciphered a metastatic dysfunctional adaptive immunity by a loss of B cell-dependent antigen presentation and consecutive effector T cell exhaustion. Furthermore, we demonstrated major similarities of this murine metastatic CRC model with human disease and - based on the results of our analysis - provided an auspicious site-specific immunomodulatory treatment approach for stage IV CRC by intraperitoneal checkpoint inhibition.
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Affiliation(s)
- Christopher Berlin
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) Partner Site, Freiburg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- IMM-PACT Clinician Scientist Program
| | - Bernhard Mauerer
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) Partner Site, Freiburg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Pierre Cauchy
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) Partner Site, Freiburg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jost Luenstedt
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- IMM-PACT Clinician Scientist Program
| | - Roman Sankowski
- Institute of Neuropathology
- Single-Cell Omics Platform Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Lisa Marx
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Reinhild Feuerstein
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Luisa Schaefer
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Florian R. Greten
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- Institute for Tumor Biology and Experimental Therapy, Georg-Speyer-Haus, Frankfurt/Main, Germany
| | - Marina Pesic
- Institute for Tumor Biology and Experimental Therapy, Georg-Speyer-Haus, Frankfurt/Main, Germany
| | - Olaf Groß
- Institute of Neuropathology
- Signalling Research Centres BIOSS and CIBSS
| | - Marco Prinz
- Institute of Neuropathology
- Signalling Research Centres BIOSS and CIBSS
- Center for Basics in NeuroModulation (NeuroModulBasics), Faculty of Medicine, and
| | - Naomi Ruehl
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Laura Miketiuk
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Dominik Jauch
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Claudia Laessle
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- EXCEL Excellent Clinician Scientist Program, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Andreas Jud
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Esther A. Biesel
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Hannes Neeff
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Stefan Fichtner-Feigl
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) Partner Site, Freiburg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Philipp A. Holzner
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Rebecca Kesselring
- Department of General and Visceral Surgery, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK) Partner Site, Freiburg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
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11
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Bekhbat M, Drake J, Reed EC, Lauten TH, Natour T, Vladimirov VI, Case AJ. Repeated social defeat stress leads to immunometabolic shifts in innate immune cells of the spleen. Brain Behav Immun Health 2023; 34:100690. [PMID: 37791319 PMCID: PMC10543777 DOI: 10.1016/j.bbih.2023.100690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 10/05/2023] Open
Abstract
Psychosocial stress has been shown to prime peripheral innate immune cells, which take on hyper-inflammatory phenotypes and are implicated in depressive-like behavior in mouse models. However, the impact of stress on cellular metabolic states that are thought to fuel inflammatory phenotypes in immune cells are unknown. Using single cell RNA-sequencing, we investigated mRNA enrichment of immunometabolic pathways in innate immune cells of the spleen in mice subjected to repeated social defeat stress (RSDS) or no stress (NS). RSDS mice displayed a significant increase in the number of splenic macrophages and granulocytes (p < 0.05) compared to NS littermates. RSDS-upregulated genes in macrophages, monocytes, and granulocytes significantly enriched immunometabolic pathways thought to play a role in myeloid-driven inflammation (glycolysis, HIF-1 signaling, MTORC1 signaling) as well as pathways related to oxidative phosphorylation (OXPHOS) and oxidative stress (p < 0.05 and FDR<0.1). These results suggest that the metabolic enhancement reflected by upregulation of glycolytic and OXPHOS pathways may be important for cellular proliferation of splenic macrophages and granulocytes following repeated stress exposure. A better understanding of these intracellular metabolic mechanisms may ultimately help develop novel strategies to reverse the impact of stress and associated peripheral immune changes on the brain and behavior.
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Affiliation(s)
- Mandakh Bekhbat
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, 30322, USA
| | - John Drake
- Department of Psychiatry and Behavioral Sciences, Texas A&M University, Bryan, TX, 77807, USA
| | - Emily C. Reed
- Department of Psychiatry and Behavioral Sciences, Texas A&M University, Bryan, TX, 77807, USA
- Department of Medical Physiology, Texas A&M University, Bryan, TX, 77807, USA
| | - Tatlock H. Lauten
- Department of Psychiatry and Behavioral Sciences, Texas A&M University, Bryan, TX, 77807, USA
- Department of Medical Physiology, Texas A&M University, Bryan, TX, 77807, USA
| | - Tamara Natour
- Department of Psychiatry and Behavioral Sciences, Texas A&M University, Bryan, TX, 77807, USA
- Department of Medical Physiology, Texas A&M University, Bryan, TX, 77807, USA
| | - Vladimir I. Vladimirov
- Department of Psychiatry and Behavioral Sciences, Texas A&M University, Bryan, TX, 77807, USA
- Department of Psychiatry, University of Arizona, Phoenix, AZ, 85004, USA
- Lieber Institute for Brain Development, Johns Hopkins University, Baltimore, MD, 21205, USA
| | - Adam J. Case
- Department of Psychiatry and Behavioral Sciences, Texas A&M University, Bryan, TX, 77807, USA
- Department of Medical Physiology, Texas A&M University, Bryan, TX, 77807, USA
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12
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Zhang H, Chen S, Zhang Y, Tian C, Pan J, Wang Y, Bai S, Wu Q, Su M, Xie D, Fu S, Li S, Zhang J, Chen Y, Zhu S, Qian Y, Bai L. Antigen Priming Induces Functional Reprogramming in iNKT Cells via Metabolic and Epigenetic Regulation: An Insight into iNKT Cell-Based Antitumor Immunotherapy. Cancer Immunol Res 2023; 11:1598-1610. [PMID: 37756568 DOI: 10.1158/2326-6066.cir-23-0448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/04/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
Dysfunction of intratumoral invariant natural killer T (iNKT) cells hinders their antitumor efficacy, but the underlying mechanisms and the relationship with endogenous antigen priming remain to be explored. Here, we report that antigen priming leads to metabolic reprogramming and epigenetic remodeling, which causes functional reprogramming in iNKT cells, characterized by limited cytokine responses upon restimulation but constitutive high cytotoxicity. Mechanistically, impaired oxidative phosphorylation (OXPHOS) in antigen-primed iNKT cells inhibited T-cell receptor signaling, as well as elevation of glycolysis, upon restimulation via reducing mTORC1 activation, and thus led to impaired cytokine production. However, the metabolic reprogramming in antigen-primed iNKT cells was uncoupled with their enhanced cytotoxicity; instead, epigenetic remodeling explained their high expression of granzymes. Notably, intratumoral iNKT cells shared similar metabolic reprogramming and functional reprogramming with antigen-primed iNKT cells due to endogenous antigen priming in tumors, and thus recovery of OXPHOS in intratumoral iNKT cells by ZLN005 successfully enhanced their antitumor responses. Our study deciphers the influences of antigen priming-induced metabolic reprogramming and epigenetic remodeling on functionality of intratumoral iNKT cells, and proposes a way to enhance efficacy of iNKT cell-based antitumor immunotherapy by targeting cellular metabolism.
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Affiliation(s)
- Huimin Zhang
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Sanwei Chen
- Department of General Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yuwei Zhang
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chenxi Tian
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jun Pan
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yu Wang
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shiyu Bai
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Qielan Wu
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Miya Su
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Di Xie
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Sicheng Fu
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shuhang Li
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jing Zhang
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China
| | - Yusheng Chen
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China
| | - Shasha Zhu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei, Anhui, China
| | - Yeben Qian
- Department of General Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Li Bai
- Center for Advanced Interdisciplinary Science and Biomedicine, Institute of Health and Medicine, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
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13
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Li C, Liu FY, Shen Y, Tian Y, Han FJ. Research progress on the mechanism of glycolysis in ovarian cancer. Front Immunol 2023; 14:1284853. [PMID: 38090580 PMCID: PMC10715264 DOI: 10.3389/fimmu.2023.1284853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 11/10/2023] [Indexed: 12/18/2023] Open
Abstract
Glycolysis is the preferred energy metabolism pathway in cancer cells even when the oxygen content is sufficient. Through glycolysis, cancer cells convert glucose into pyruvic acid and then lactate to rapidly produce energy and promote cancer progression. Changes in glycolysis activity play a crucial role in the biosynthesis and energy requirements of cancer cells needed to maintain growth and metastasis. This review focuses on ovarian cancer and the significance of key rate-limiting enzymes (hexokinase, phosphofructokinase, and pyruvate kinase, related signaling pathways (PI3K-AKT, Wnt, MAPK, AMPK), transcription regulators (HIF-1a), and non-coding RNA in the glycolytic pathway. Understanding the relationship between glycolysis and these different mechanisms may provide new opportunities for the future treatment of ovarian cancer.
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Affiliation(s)
- Chan Li
- Heilongjiang University of Traditional Chinese Medicine (TCM), Harbin, Heilongjiang, China
| | - Fang-Yuan Liu
- Heilongjiang University of Traditional Chinese Medicine (TCM), Harbin, Heilongjiang, China
| | - Ying Shen
- Heilongjiang University of Traditional Chinese Medicine (TCM), Harbin, Heilongjiang, China
- The First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine (TCM), Harbin, Heilongjiang, China
| | - Yuan Tian
- Zhejiang University of Chinese Medicine, Hangzhou, Zhejiang, China
| | - Feng-Juan Han
- The First Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine (TCM), Harbin, Heilongjiang, China
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14
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Koh J, Woo YD, Yoo HJ, Choi JP, Kim SH, Chang YS, Jung KC, Kim JH, Jeon YK, Kim HY, Chung DH. De novo fatty-acid synthesis protects invariant NKT cells from cell death, thereby promoting their homeostasis and pathogenic roles in airway hyperresponsiveness. eLife 2023; 12:RP87536. [PMID: 37917548 PMCID: PMC10622147 DOI: 10.7554/elife.87536] [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] [Indexed: 11/04/2023] Open
Abstract
Invariant natural-killer T (iNKT) cells play pathogenic roles in allergic asthma in murine models and possibly also humans. While many studies show that the development and functions of innate and adaptive immune cells depend on their metabolic state, the evidence for this in iNKT cells is very limited. It is also not clear whether such metabolic regulation of iNKT cells could participate in their pathogenic activities in asthma. Here, we showed that acetyl-coA-carboxylase 1 (ACC1)-mediated de novo fatty-acid synthesis is required for the survival of iNKT cells and their deleterious functions in allergic asthma. ACC1, which is a key fatty-acid synthesis enzyme, was highly expressed by lung iNKT cells from WT mice that were developing asthma. Cd4-Cre::Acc1fl/fl mice failed to develop OVA-induced and HDM-induced asthma. Moreover, iNKT cell-deficient mice that were reconstituted with ACC1-deficient iNKT cells failed to develop asthma, unlike when WT iNKT cells were transferred. ACC1 deficiency in iNKT cells associated with reduced expression of fatty acid-binding proteins (FABPs) and peroxisome proliferator-activated receptor (PPAR)γ, but increased glycolytic capacity that promoted iNKT-cell death. Furthermore, circulating iNKT cells from allergic-asthma patients expressed higher ACC1 and PPARG levels than the corresponding cells from non-allergic-asthma patients and healthy individuals. Thus, de novo fatty-acid synthesis prevents iNKT-cell death via an ACC1-FABP-PPARγ axis, which contributes to their homeostasis and their pathogenic roles in allergic asthma.
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Affiliation(s)
- Jaemoon Koh
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yeon Duk Woo
- Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyun Jung Yoo
- Laboratory of Immunology and Vaccine Innovation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Jun-Pyo Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Sae Hoon Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Council, Seoul, Republic of Korea
| | - Yoon-Seok Chang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Council, Seoul, Republic of Korea
| | - Kyeong Cheon Jung
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ji Hyung Kim
- Laboratory of Immunology and Vaccine Innovation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Yoon Kyung Jeon
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hye Young Kim
- Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Doo Hyun Chung
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
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15
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Liu Y, Westerhoff HV. 'Social' versus 'asocial' cells-dynamic competition flux balance analysis. NPJ Syst Biol Appl 2023; 9:53. [PMID: 37898597 PMCID: PMC10613221 DOI: 10.1038/s41540-023-00313-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 10/09/2023] [Indexed: 10/30/2023] Open
Abstract
In multicellular organisms cells compete for resources or growth factors. If any one cell type wins, the co-existence of diverse cell types disappears. Existing dynamic Flux Balance Analysis (dFBA) does not accommodate changes in cell density caused by competition. Therefore we here develop 'dynamic competition Flux Balance Analysis' (dcFBA). With total biomass synthesis as objective, lower-growth-yield cells were outcompeted even when cells synthesized mutually required nutrients. Signal transduction between cells established co-existence, which suggests that such 'socialness' is required for multicellularity. Whilst mutants with increased specific growth rate did not outgrow the other cell types, loss of social characteristics did enable a mutant to outgrow the other cells. We discuss that 'asocialness' rather than enhanced growth rates, i.e., a reduced sensitivity to regulatory factors rather than enhanced growth rates, may characterize cancer cells and organisms causing ecological blooms. Therapies reinforcing cross-regulation may therefore be more effective than those targeting replication rates.
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Affiliation(s)
- Yanhua Liu
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Hans V Westerhoff
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands.
- Molecular Cell Biology, A-Life, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
- Stellenbosch Institute for Advanced Study (STIAS), Wallenberg Research Centre at Stellenbosch University, Stellenbosch, 7600, South Africa.
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16
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Zhao SS, Liu J, Wu QC, Zhou XL. Role of histone lactylation interference RNA m 6A modification and immune microenvironment homeostasis in pulmonary arterial hypertension. Front Cell Dev Biol 2023; 11:1268646. [PMID: 37771377 PMCID: PMC10522917 DOI: 10.3389/fcell.2023.1268646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 08/28/2023] [Indexed: 09/30/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a severe disease resulting from progressive increases in pulmonary vascular resistance and pulmonary vascular remodeling, ultimately leading to right ventricular failure and even death. Hypoxia, inflammation, immune reactions, and epigenetic modifications all play significant contributory roles in the mechanism of PAH. Increasingly, epigenetic changes and their modifying factors involved in reprogramming through regulation of methylation or the immune microenvironment have been identified. Among them, histone lactylation is a new post-translational modification (PTM), which provides a novel visual angle on the functional mechanism of lactate and provides a promising diagnosis and treatment method for PAH. This review detailed introduces the function of lactate as an important molecule in PAH, and the effects of lactylation on N6-methyladenosine (m6A) and immune cells. It provides a new perspective to further explore the development of lactate regulation of pulmonary hypertension through histone lactylation modification.
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Affiliation(s)
- Shuai-shuai Zhao
- Department of Cardiac Surgery, The First Affiliated Hospital, Nanchang University, Nanchang, China
| | - Jinlong Liu
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Qi-cai Wu
- Department of Cardiac Surgery, The First Affiliated Hospital, Nanchang University, Nanchang, China
| | - Xue-liang Zhou
- Department of Cardiac Surgery, The First Affiliated Hospital, Nanchang University, Nanchang, China
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17
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Lin Y, Yan G, Wang M, Zhang K, Shu F, Liu M, Long F, Mao D. Crosstalk between lactic acid and immune regulation and its value in the diagnosis and treatment of liver failure. Open Life Sci 2023; 18:20220636. [PMID: 37724112 PMCID: PMC10505340 DOI: 10.1515/biol-2022-0636] [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: 03/16/2023] [Revised: 05/07/2023] [Accepted: 05/17/2023] [Indexed: 09/20/2023] Open
Abstract
Liver failure is a common clinical syndrome of severe liver diseases, which belongs to one of the critical medical conditions. Immune response plays a leading role in the pathogenesis of liver failure. Lactic acid as a target for the treatment and prediction of liver failure has not attracted enough attention. Since the emergence of the concept of "histone lactation," lactic acid has shown great promise in immune response and escape. Therefore, targeted lactic acid may be a reliable agent to solve immune and energy metabolism disorders in liver failure. Based on the relationship between lactic acid and immune response, the cross-talk between lactic acid metabolism, its compounds, and immune regulation and its significance in the diagnosis and treatment of liver failure were expounded in this article to provide new ideas for understanding and treating liver failure.
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Affiliation(s)
- Yong Lin
- Graduate School of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi, China
| | - Gengjie Yan
- Graduate School of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi, China
| | - Minggang Wang
- Department of Hepatology at the First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi, China
| | - Kan Zhang
- Department of Hepatology at the First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi, China
| | - Faming Shu
- Department of Hepatology at the First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi, China
| | - Meiyan Liu
- Graduate School of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi, China
| | - Fuli Long
- Department of Hepatology at the First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi, China
| | - Dewen Mao
- Department of Hepatology at the First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi, China
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18
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Jeong D, Woo YD, Chung DH. Invariant natural killer T cells in lung diseases. Exp Mol Med 2023; 55:1885-1894. [PMID: 37696892 PMCID: PMC10545712 DOI: 10.1038/s12276-023-01024-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 04/12/2023] [Indexed: 09/13/2023] Open
Abstract
Invariant natural killer T (iNKT) cells are a subset of T cells that are characterized by a restricted T-cell receptor (TCR) repertoire and a unique ability to recognize glycolipid antigens. These cells are found in all tissues, and evidence to date suggests that they play many immunological roles in both homeostasis and inflammatory conditions. The latter include lung inflammatory diseases such as asthma and infections: the roles of lung-resident iNKT cells in these diseases have been extensively researched. Here, we provide insights into the biology of iNKT cells in health and disease, with a particular focus on the role of pulmonary iNKT cells in airway inflammation and other lung diseases.
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Affiliation(s)
- Dongjin Jeong
- Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Yeon Duk Woo
- Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Doo Hyun Chung
- Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea.
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea.
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19
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Araldi RP, Delvalle DA, da Costa VR, Alievi AL, Teixeira MR, Dias Pinto JR, Kerkis I. Exosomes as a Nano-Carrier for Chemotherapeutics: A New Era of Oncology. Cells 2023; 12:2144. [PMID: 37681875 PMCID: PMC10486723 DOI: 10.3390/cells12172144] [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: 07/31/2023] [Revised: 08/08/2023] [Accepted: 08/17/2023] [Indexed: 09/09/2023] Open
Abstract
Despite the considerable advancements in oncology, cancer remains one of the leading causes of death worldwide. Drug resistance mechanisms acquired by cancer cells and inefficient drug delivery limit the therapeutic efficacy of available chemotherapeutics drugs. However, studies have demonstrated that nano-drug carriers (NDCs) can overcome these limitations. In this sense, exosomes emerge as potential candidates for NDCs. This is because exosomes have better organotropism, homing capacity, cellular uptake, and cargo release ability than synthetic NDCs. In addition, exosomes can serve as NDCs for both hydrophilic and hydrophobic chemotherapeutic drugs. Thus, this review aimed to summarize the latest advances in cell-free therapy, describing how the exosomes can contribute to each step of the carcinogenesis process and discussing how these nanosized vesicles could be explored as nano-drug carriers for chemotherapeutics.
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Affiliation(s)
- Rodrigo Pinheiro Araldi
- Genetics Laboratory, Butantan Institute, São Paulo 05503-900, SP, Brazil; (D.A.D.); (V.R.d.C.); (A.L.A.); (M.R.T.)
- Structural and Functional Biology Post-Graduation Program, Paulista School of Medicine, São Paulo Federal University (EPM-UNIFESP), São Paulo 04023-062, SP, Brazil
- BioDecision Analytics Ltd.a., São Paulo 13271-650, SP, Brazil;
| | - Denis Adrián Delvalle
- Genetics Laboratory, Butantan Institute, São Paulo 05503-900, SP, Brazil; (D.A.D.); (V.R.d.C.); (A.L.A.); (M.R.T.)
- Structural and Functional Biology Post-Graduation Program, Paulista School of Medicine, São Paulo Federal University (EPM-UNIFESP), São Paulo 04023-062, SP, Brazil
| | - Vitor Rodrigues da Costa
- Genetics Laboratory, Butantan Institute, São Paulo 05503-900, SP, Brazil; (D.A.D.); (V.R.d.C.); (A.L.A.); (M.R.T.)
- Structural and Functional Biology Post-Graduation Program, Paulista School of Medicine, São Paulo Federal University (EPM-UNIFESP), São Paulo 04023-062, SP, Brazil
| | - Anderson Lucas Alievi
- Genetics Laboratory, Butantan Institute, São Paulo 05503-900, SP, Brazil; (D.A.D.); (V.R.d.C.); (A.L.A.); (M.R.T.)
- Endocrinology and Metabology Post-Graduation Program, Paulista School of Medicine, São Paulo Federal University (EPM-UNIFESP), São Paulo 04023-062, SP, Brazil
| | - Michelli Ramires Teixeira
- Genetics Laboratory, Butantan Institute, São Paulo 05503-900, SP, Brazil; (D.A.D.); (V.R.d.C.); (A.L.A.); (M.R.T.)
- Endocrinology and Metabology Post-Graduation Program, Paulista School of Medicine, São Paulo Federal University (EPM-UNIFESP), São Paulo 04023-062, SP, Brazil
| | | | - Irina Kerkis
- Genetics Laboratory, Butantan Institute, São Paulo 05503-900, SP, Brazil; (D.A.D.); (V.R.d.C.); (A.L.A.); (M.R.T.)
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20
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Jaworska M, Szczudło J, Pietrzyk A, Shah J, Trojan SE, Ostrowska B, Kocemba-Pilarczyk KA. The Warburg effect: a score for many instruments in the concert of cancer and cancer niche cells. Pharmacol Rep 2023:10.1007/s43440-023-00504-1. [PMID: 37332080 PMCID: PMC10374743 DOI: 10.1007/s43440-023-00504-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/20/2023]
Abstract
Although Warburg's discovery of intensive glucose uptake by tumors, followed by lactate fermentation in oxygen presence of oxygen was made a century ago, it is still an area of intense research and development of new hypotheses that, layer by layer, unravel the complexities of neoplastic transformation. This seemingly simple metabolic reprogramming of cancer cells reveals an intriguing, multi-faceted nature that may link various phenomena including cell signaling, cell proliferation, ROS generation, energy supply, macromolecules synthesis/biosynthetic precursor supply, immunosuppression, or cooperation of cancerous cells with cancer-associated fibroblasts (CAFs), known as reversed Warburg effect. According to the current perception of the causes and consequences of the Warburg effect, PI3K/Akt/mTOR are the main signaling pathways that, in concert with the transcription factors HIF-1, p53, and c-Myc, modulate the activity/expression of key regulatory enzymes, including PKM2, and PDK1 to tune in the most optimal metabolic setting for the cancer cell. This in turn secures adequate levels of biosynthetic precursors, NADPH, NAD+, and rapid ATP production to meet the increased demands of intensively proliferating tumor cells. The end-product of "aerobic glycolysis", lactate, an oncometabolite, may provide fuel to neighboring cancer cells, and facilitate metastasis and immunosuppression together enabling cancer progression. The importance and possible applicability of the presented issue are best illustrated by numerous trials with various agents targeting the Warburg effect, constituting a promising strategy in future anti-cancer regimens. In this review, we present the key aspects of this multifactorial phenomenon, depicting the mechanisms and benefits behind the Warburg effect, and also pointing to selected aspects in the field of anticancer therapy.
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Affiliation(s)
- Martyna Jaworska
- Chair of Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
| | - Julia Szczudło
- Chair of Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
| | - Adrian Pietrzyk
- Chair of Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
| | - Jay Shah
- Chair of Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
- Government Medical College Miraj, Miraj, Maharashtra, India
| | - Sonia E Trojan
- Chair of Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Barbara Ostrowska
- Chair of Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Kinga A Kocemba-Pilarczyk
- Chair of Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, Kraków, Poland.
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21
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Gurshaney S, Morales-Alvarez A, Ezhakunnel K, Manalo A, Huynh TH, Abe JI, Le NT, Weiskopf D, Sette A, Lupu DS, Gardell SJ, Nguyen H. Metabolic dysregulation impairs lymphocyte function during severe SARS-CoV-2 infection. Commun Biol 2023; 6:374. [PMID: 37029220 PMCID: PMC10080180 DOI: 10.1038/s42003-023-04730-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/20/2023] [Indexed: 04/09/2023] Open
Abstract
Cellular metabolic dysregulation is a consequence of SARS-CoV-2 infection that is a key determinant of disease severity. However, how metabolic perturbations influence immunological function during COVID-19 remains unclear. Here, using a combination of high-dimensional flow cytometry, cutting-edge single-cell metabolomics, and re-analysis of single-cell transcriptomic data, we demonstrate a global hypoxia-linked metabolic switch from fatty acid oxidation and mitochondrial respiration towards anaerobic, glucose-dependent metabolism in CD8+Tc, NKT, and epithelial cells. Consequently, we found that a strong dysregulation in immunometabolism was tied to increased cellular exhaustion, attenuated effector function, and impaired memory differentiation. Pharmacological inhibition of mitophagy with mdivi-1 reduced excess glucose metabolism, resulting in enhanced generation of SARS-CoV-2- specific CD8+Tc, increased cytokine secretion, and augmented memory cell proliferation. Taken together, our study provides critical insight regarding the cellular mechanisms underlying the effect of SARS-CoV-2 infection on host immune cell metabolism, and highlights immunometabolism as a promising therapeutic target for COVID-19 treatment.
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Affiliation(s)
- Sanjeev Gurshaney
- Cancer Division, Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Anamaria Morales-Alvarez
- Cancer Division, Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Kevin Ezhakunnel
- Cancer Division, Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Andrew Manalo
- Cancer Division, Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Thien-Huong Huynh
- Cancer Division, Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Jun-Ichi Abe
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1451, Houston, TX, 77030, USA
| | - Nhat-Tu Le
- Center for Cardiovascular Regeneration, Department of Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, 77030, USA
| | - Daniela Weiskopf
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA, 92037, USA
| | - Alessandro Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA, 92037, USA
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA, 92037, USA
| | - Daniel S Lupu
- AdventHealth Cancer Institute, AdventHealth Research Institute, Orlando, FL, 32804, USA
| | - Stephen J Gardell
- Translational Research Institute, AdventHealth Research Institute, Orlando, FL, 32804, USA
| | - Hung Nguyen
- Cancer Division, Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA.
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22
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Heaton AR, Rehani PR, Hoefges A, Lopez AF, Erbe AK, Sondel PM, Skala MC. Single cell metabolic imaging of tumor and immune cells in vivo in melanoma bearing mice. Front Oncol 2023; 13:1110503. [PMID: 37020875 PMCID: PMC10067577 DOI: 10.3389/fonc.2023.1110503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/02/2023] [Indexed: 03/22/2023] Open
Abstract
Introduction Metabolic reprogramming of cancer and immune cells occurs during tumorigenesis and has a significant impact on cancer progression. Unfortunately, current techniques to measure tumor and immune cell metabolism require sample destruction and/or cell isolations that remove the spatial context. Two-photon fluorescence lifetime imaging microscopy (FLIM) of the autofluorescent metabolic coenzymes nicotinamide adenine dinucleotide (phosphate) (NAD(P)H) and flavin adenine dinucleotide (FAD) provides in vivo images of cell metabolism at a single cell level. Methods Here, we report an immunocompetent mCherry reporter mouse model for immune cells that express CD4 either during differentiation or CD4 and/or CD8 in their mature state and perform in vivo imaging of immune and cancer cells within a syngeneic B78 melanoma model. We also report an algorithm for single cell segmentation of mCherry-expressing immune cells within in vivo images. Results We found that immune cells within B78 tumors exhibited decreased FAD mean lifetime and an increased proportion of bound FAD compared to immune cells within spleens. Tumor infiltrating immune cell size also increased compared to immune cells from spleens. These changes are consistent with a shift towards increased activation and proliferation in tumor infiltrating immune cells compared to immune cells from spleens. Tumor infiltrating immune cells exhibited increased FAD mean lifetime and increased protein-bound FAD lifetime compared to B78 tumor cells within the same tumor. Single cell metabolic heterogeneity was observed in both immune and tumor cells in vivo. Discussion This approach can be used to monitor single cell metabolic heterogeneity in tumor cells and immune cells to study promising treatments for cancer in the native in vivo context.
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Affiliation(s)
- Alexa R. Heaton
- Morgridge Institute for Research, Madison, WI, United States
- Department of Human Oncology, University of Wisconsin, Madison, WI, United States
| | - Peter R. Rehani
- Morgridge Institute for Research, Madison, WI, United States
| | - Anna Hoefges
- Department of Human Oncology, University of Wisconsin, Madison, WI, United States
| | - Angelica F. Lopez
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, United States
| | - Amy K. Erbe
- Department of Human Oncology, University of Wisconsin, Madison, WI, United States
| | - Paul M. Sondel
- Department of Human Oncology, University of Wisconsin, Madison, WI, United States
- Department of Pediatrics, University of Wisconsin, Madison, WI, United States
| | - Melissa C. Skala
- Morgridge Institute for Research, Madison, WI, United States
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI, United States
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23
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Yarosz EL, Kumar A, Singer JD, Chang CH. Cullin 3-Mediated Regulation of Intracellular Iron Homeostasis Promotes Thymic Invariant NKT Cell Maturation. Immunohorizons 2023; 7:235-242. [PMID: 36951874 PMCID: PMC10122431 DOI: 10.4049/immunohorizons.2300002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 03/24/2023] Open
Abstract
The E3 ubiquitin ligase cullin 3 (Cul3) is critical for invariant NKT (iNKT) cell development, as iNKT cells lacking Cul3 accumulate in the immature developmental stages. However, the mechanisms by which Cul3 mediates iNKT cell development remain unknown. In this study, we investigated the role of Cul3 in both immature and mature thymic iNKT cells using a mouse model with a T cell-specific deletion of Cul3. We found that mature iNKT cells lacking Cul3 proliferated and died more than wild-type cells did. These cells also displayed increased glucose metabolism and autophagy. Interestingly, we found that tight regulation of iron homeostasis is critical for iNKT cell development. Without Cul3, mature iNKT cells harbored higher levels of cytosolic iron, a phenotype associated with increased cell death. Taken together, our data suggest that Cul3 promotes iNKT cell development partially through intracellular iron homeostasis.
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Affiliation(s)
- Emily L. Yarosz
- Immunology Graduate Program, University of Michigan Medical School, Ann Arbor, MI
| | - Ajay Kumar
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI
| | | | - Cheong-Hee Chang
- Immunology Graduate Program, University of Michigan Medical School, Ann Arbor, MI
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI
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24
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Bai S, Wu Q, Zhu S, Zhang Y, Chen X, Su M, Pan J, Li S, Yue T, Xu L, Xie D, Tian C, Zhao D, Li X, Hou J, Wang L, Fu S, Xue Y, Jiang A, Li D, Xu T, Tian Z, Zhou R, Zhang H, Bai L. Vam6 reduces iNKT cell function in tumor via modulating AMPK/mTOR pathways. Front Immunol 2023; 13:1051045. [PMID: 36741382 PMCID: PMC9892639 DOI: 10.3389/fimmu.2022.1051045] [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: 10/12/2022] [Accepted: 12/30/2022] [Indexed: 01/20/2023] Open
Abstract
Activation of mTORC1 is essential for anti-tumor function of iNKT cells. The mechanisms underlying impaired mTORC1 activation in intratumoral iNKT cells remain unclear. Via generating Vam6+/- mice and using flow cytometry, image approach, and RNA sequencing, we studied the role of Vam6 in controlling mTORC1 activation and intratumoral iNKT cell functions. Here, we find that increased Vam6 expression in intratumoral iNKT cells leads to impaired mTORC1 activation and IFN-γ production. Mechanistically, Vam6 in iNKT cells is essential for Rab7a-Vam6-AMPK complex formation and thus for recruitment of AMPK to lysosome to activate AMPK, a negative regulator of mTORC1. Additionally, Vam6 relieves inhibitory effect of VDAC1 on Rab7a-Vam6-AMPK complex formation at mitochondria-lysosome contact site. Moreover, we report that lactic acid produced by tumor cells increases Vam6 expression in iNKT cells. Given the key roles of increased Vam6 in promoting AMPK activation in intratumoral iNKT cells, reducing Vam6 expression signifificantly enhances the mTORC1 activation in intratumoral iNKT cells as well as their anti-tumor effificacy. Together, we propose Vam6 as a target for iNKT cell-based immunotherapy.
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Affiliation(s)
- Shiyu Bai
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Qielan Wu
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shasha Zhu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yuwei Zhang
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xuran Chen
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Miya Su
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jun Pan
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shuhang Li
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ting Yue
- Biomedical Sciences and Health Laboratory of Anhui Province, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Linfeng Xu
- Biomedical Sciences and Health Laboratory of Anhui Province, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Di Xie
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chenxi Tian
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Dan Zhao
- School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xiang Li
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Junjie Hou
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Lu Wang
- Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Sicheng Fu
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yanhong Xue
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Amin Jiang
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Dong Li
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Tao Xu
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Zhigang Tian
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,Biomedical Sciences and Health Laboratory of Anhui Province, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Rongbin Zhou
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,Biomedical Sciences and Health Laboratory of Anhui Province, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Huimin Zhang
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,*Correspondence: Huimin Zhang, ; Li Bai,
| | - Li Bai
- Department of Oncology of the First Affiliated Hospital, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,Biomedical Sciences and Health Laboratory of Anhui Province, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China,Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China,National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China,*Correspondence: Huimin Zhang, ; Li Bai,
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25
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Xu Y, Hao X, Ren Y, Xu Q, Liu X, Song S, Wang Y. Research progress of abnormal lactate metabolism and lactate modification in immunotherapy of hepatocellular carcinoma. Front Oncol 2023; 12:1063423. [PMID: 36686771 PMCID: PMC9853001 DOI: 10.3389/fonc.2022.1063423] [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: 10/07/2022] [Accepted: 12/19/2022] [Indexed: 01/09/2023] Open
Abstract
Tumors meet their energy, biosynthesis, and redox demands through metabolic reprogramming. This metabolic abnormality results in elevated levels of metabolites, particularly lactate, in the tumor microenvironment. Immune cell reprogramming and cellular plasticity mediated by lactate and lactylation increase immunosuppression in the tumor microenvironment and are emerging as key factors in regulating tumor development, metastasis, and the effectiveness of immunotherapies such as immune checkpoint inhibitors. Reprogramming of glucose metabolism and the "Warburg effect" in hepatocellular carcinoma (HCC) lead to the massive production and accumulation of lactate, so lactate modification in tumor tissue is likely to be abnormal as well. This article reviews the immune regulation of abnormal lactate metabolism and lactate modification in hepatocellular carcinoma and the therapeutic strategy of targeting lactate-immunotherapy, which will help to better guide the medication and treatment of patients with hepatocellular carcinoma.
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Affiliation(s)
- Yiwei Xu
- Marine College, Shandong University, Weihai, China
| | - Xiaodong Hao
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yidan Ren
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Qinchen Xu
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiaoyan Liu
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Shuliang Song
- Marine College, Shandong University, Weihai, China,*Correspondence: Shuliang Song, ; Yunshan Wang,
| | - Yunshan Wang
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China,*Correspondence: Shuliang Song, ; Yunshan Wang,
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26
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Chen Y, Yan D, Xu J, Xiong H, Luan S, Xiao C, Huang Q. The importance of selecting crystal form for triazole fungicide tebuconazole to enhance its botryticidal activity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 854:158778. [PMID: 36122714 DOI: 10.1016/j.scitotenv.2022.158778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/09/2022] [Accepted: 09/11/2022] [Indexed: 06/15/2023]
Abstract
The growing evidences of resistant fungi stimulate fully understanding tebuconazole regarding its crystal structure on fungicidal activity. In this study, the crystal structures of six technical tebuconazoles (BX, HH, JP, QZ, SJ, and YT) were characterized by using high-resolution X-ray powder diffraction and three-dimensional crystal structure modeling. A structure-activity relationship of the tebuconazoles on the susceptible (HLS and YJS) or resistant (XHR) Botrytis cinerea isolates was analyzed, the differential tricarboxylic acid (TCA) cycle metabolism was determined, and molecular docking with sterol 14α-demethylase (CYP51) was performed. The results showed that tebuconazole existed in three types of crystal forms: an overlapping-pair conformation, a side-by-side-pair conformation, and a parallel-pair conformation. QZ with the parallel-pair conformation and the minimum crystal cell volume exhibited a higher activity and a lower resistant level. XHR possessed a higher content of TCA cycle metabolites and phosphate than YJS, but the exposure to QZ significantly reduced the contents of citrate, isocitrate, α-ketoglutarate and oxaloacetate in XHR, as did the exposure to other technical tebuconazoles. Moreover, the point mutations F487L, G464S, and G443S altered the binding properties of chiral stereoscopic R-QZ with CYP51 protein. Especially the G443S mutation promoted a weak linking of R-QZ with LEU380 and TYR126, and greatly slashed the binding action at lower docking score. In conclusion, our results evidenced an efficient crystal conformation of tebuconazole to improve botryticidal activity and a potential adaptability of B. cinerea to tebuconazole inhibition in TCA cycle metabolism and CYP51 protein mutation.
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Affiliation(s)
- Yongjun Chen
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Dongmei Yan
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Jialin Xu
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Hui Xiong
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Shaorong Luan
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Ciying Xiao
- School of Biological Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Qingchun Huang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China.
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27
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Labuz D, Cacioppo J, Li K, Aubé J, Leung DT. Enhancing Mucosal-Associated Invariant T Cell Function and Expansion with Human Selective Serum. Immunohorizons 2023; 7:116-124. [PMID: 36651819 PMCID: PMC10026854 DOI: 10.4049/immunohorizons.2200082] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/26/2022] [Indexed: 01/19/2023] Open
Abstract
Mucosal-associated invariant T (MAIT) cells are promising innate-like lymphocytes with potential for use in anti-tumor immunotherapy. Existing MAIT cell expansion protocols are associated with potentially decremental phenotypic changes, including increased frequency of CD4+ MAIT cells and higher inhibitory receptor expression. In this study, we compared the effect on expansion of human MAIT cells of a serum replacement, Physiologix XF SR (Phx), with traditional serum FBS for supplementing RPMI 1640 media. Using flow cytometry, we found that Phx supported a significantly higher proliferative capacity for MAIT cells and resulted in a lower frequency of CD4+ MAIT cells, which have been associated with reduced Th1 effector and cytolytic functions. We saw that culturing MAIT cells in Phx led to better survival of MAIT cells and lower frequency of PD-1+ MAIT cells than FBS-supplemented media. Functionally, we saw that Phx supplementation was associated with a higher frequency of IFN-γ+ MAIT cells after stimulation with Escherichia coli than FBS-supplemented RPMI. In conclusion, we show that MAIT cells cultured in Phx have higher proliferative capacity, lower expression of inhibitory receptors, and higher capacity to produce IFN-γ after E. coli stimulation than FBS-supplemented RPMI. This work shows that expanding MAIT cells with Phx compared with FBS-supplemented RPMI results in a more functionally desirable MAIT cell for future anti-tumor immunotherapy.
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Affiliation(s)
- Daniel Labuz
- Division of Infectious Disease, Department of Internal Medicine, University of Utah, Salt Lake City, UT
- Division of Microbiology & Immunology, Department of Pathology, University of Utah, Salt Lake City, UT
| | - Jackson Cacioppo
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Kelin Li
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Jeffrey Aubé
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Daniel T. Leung
- Division of Infectious Disease, Department of Internal Medicine, University of Utah, Salt Lake City, UT
- Division of Microbiology & Immunology, Department of Pathology, University of Utah, Salt Lake City, UT
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28
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Ye L, Jiang Y, Zhang M. Crosstalk between glucose metabolism, lactate production and immune response modulation. Cytokine Growth Factor Rev 2022; 68:81-92. [PMID: 36376165 DOI: 10.1016/j.cytogfr.2022.11.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022]
Abstract
Metabolites of glycolytic metabolism have been identified as signaling molecules and regulators of gene expression, in addition to their basic function as major energy and biosynthetic source. Immune cells reprogram metabolic pathways to cater to energy and biosynthesis demands upon activation. Most lymphocytes, including inflammatory M1 macrophages, mainly shift from oxidative phosphorylation to glycolysis, whereas regulatory T cells and M2 macrophages preferentially use the tricarboxylic acid (TCA) cycle and have reduced glycolysis. Recent studies have revealed the "non-metabolic" signaling functions of intermediates of the mitochondrial pathway and glycolysis. The roles of citrate, succinate and itaconate in immune response, including post-translational modifications of proteins and macrophages activation, have been highlighted. As an end product of glycolysis, lactate has received considerable interest from researchers. In this review, we specifically focused on studies exploring the integration of lactate into immune cell biology and associated pathologies. Lactate can act as a double-edged sword. On one hand, activated immune cells prefer to use lactate to support their function. On the other hand, accumulated lactate in the tissue microenvironment acts as a signaling molecule that restricts immune cell function. Recently, a novel epigenetic change mediated by histone lysine lactylation has been proposed. The burgeoning researches support the idea that histone lactylation participates in diverse cellular events. This review describes glycolytic metabolism, including the immunoregulation of metabolites of the TCA cycle and lactate. These latest findings strengthen our understanding on tumor and chronic inflammatory diseases and offer potential therapeutic options.
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Affiliation(s)
- Lei Ye
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, NHC Key Laboratory of Digestive Diseases, Shanghai 200001, China
| | - Yi Jiang
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, NHC Key Laboratory of Digestive Diseases, Shanghai 200001, China
| | - Mingming Zhang
- Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, NHC Key Laboratory of Digestive Diseases, Shanghai 200001, China; Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China.
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Sonkodi B. Psoriasis, Is It a Microdamage of Our "Sixth Sense"? A Neurocentric View. Int J Mol Sci 2022; 23:ijms231911940. [PMID: 36233237 PMCID: PMC9569707 DOI: 10.3390/ijms231911940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 11/23/2022] Open
Abstract
Psoriasis is considered a multifactorial and heterogeneous systemic disease with many underlying pathologic mechanisms having been elucidated; however, the pathomechanism is far from entirely known. This opinion article will demonstrate the potential relevance of the somatosensory Piezo2 microinjury-induced quad-phasic non-contact injury model in psoriasis through a multidisciplinary approach. The primary injury is suggested to be on the Piezo2-containing somatosensory afferent terminals in the Merkel cell−neurite complex, with the concomitant impairment of glutamate vesicular release machinery in Merkel cells. Part of the theory is that the Merkel cell−neurite complex contributes to proprioception; hence, to the stretch of the skin. Piezo2 channelopathy could result in the imbalanced control of Piezo1 on keratinocytes in a clustered manner, leading to dysregulated keratinocyte proliferation and differentiation. Furthermore, the author proposes the role of mtHsp70 leakage from damaged mitochondria through somatosensory terminals in the initiation of autoimmune and autoinflammatory processes in psoriasis. The secondary phase is harsher epidermal tissue damage due to the primary impaired proprioception. The third injury phase refers to re-injury and sensitization with the derailment of healing to a state when part of the wound healing is permanently kept alive due to genetical predisposition and environmental risk factors. Finally, the quadric damage phase is associated with the aging process and associated inflammaging. In summary, this opinion piece postulates that the primary microinjury of our “sixth sense”, or the Piezo2 channelopathy of the somatosensory terminals contributing to proprioception, could be the principal gateway to pathology due to the encroachment of our preprogrammed genetic encoding.
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Affiliation(s)
- Balázs Sonkodi
- Department of Health Sciences and Sport Medicine, Hungarian University of Sports Sciences, 1123 Budapest, Hungary
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30
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Zhang Y, Peng Q, Zheng J, Yang Y, Zhang X, Ma A, Qin Y, Qin Z, Zheng X. The function and mechanism of lactate and lactylation in tumor metabolism and microenvironment. Genes Dis 2022. [PMID: 37492749 PMCID: PMC10363641 DOI: 10.1016/j.gendis.2022.10.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Lactate is an end product of glycolysis. Owing to the lactate shuttle concept introduced in the early 1980s, increasing researchers indicate lactate as a critical energy source for mitochondrial respiration and as a precursor of gluconeogenesis. Lactate also acts as a multifunctional signaling molecule through receptors expressed in various cells, resulting in diverse biological consequences including decreased lipolysis, immune regulation, and anti-inflammation wound healing, and enhanced exercise performance in association with the gut microbiome. Furthermore, increasing evidence reveals that lactate contributes to epigenetic gene regulation by lactylating lysine residues of histones, which accounts for its key role in immune modulation and maintenance of homeostasis. Here, we summarize the function and mechanism of lactate and lactylation in tumor metabolism and microenvironment.
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31
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NKT cells adopt a glutamine-addicted phenotype to regulate their homeostasis and function. Cell Rep 2022; 41:111516. [DOI: 10.1016/j.celrep.2022.111516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 05/19/2022] [Accepted: 09/26/2022] [Indexed: 11/20/2022] Open
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32
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Sonkodi B, Pállinger É, Radovits T, Csulak E, Shenker-Horváth K, Kopper B, Buzás EI, Sydó N, Merkely B. CD3+/CD56+ NKT-like Cells Show Imbalanced Control Immediately after Exercise in Delayed-Onset Muscle Soreness. Int J Mol Sci 2022; 23:ijms231911117. [PMID: 36232420 PMCID: PMC9569472 DOI: 10.3390/ijms231911117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/15/2022] [Accepted: 09/19/2022] [Indexed: 11/24/2022] Open
Abstract
The purpose of the study was to carry out an immunophenotypical characterization with a special focus on natural killer cells of junior swimmers from the Hungarian National Swim Team before and after an intensive acute exercise. Nineteen swimmers, ten females and nine males, completed the exercise protocol. Sixteen swimmers experienced delayed-onset muscle soreness. Most of our findings substantiated earlier results, such as the increase in the percentage of the CD3−/CD56+ natural killer cells and the CD3−/CD56dim+ NK cells, and the decrease in the percentage of CD3+ T cells among lymphocytes after the exercise protocol. The drop of natural killer cell activity back to the pre-exercise level was in line with earlier findings. Interestingly, the percentage of CD3+/CD56+ NKT-like cells did not change significantly in those three swimmers who did not report delayed-onset muscle soreness. On the contrary, the percentage of CD3+/CD56+ NKT-like cells among lymphocytes increased in fourteen and decreased in two swimmers reporting delayed-onset muscle soreness. This study for the first time demonstrated a link between the delayed-onset muscle soreness and the imbalanced control of CD3+/CD56+ NKT-like cells among lymphocytes. However, validation of this association in a larger sample size study will be necessary.
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Affiliation(s)
- Balázs Sonkodi
- Department of Health Sciences and Sport Medicine, Hungarian University of Sports Science, 1123 Budapest, Hungary
- Correspondence:
| | - Éva Pállinger
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, 1085 Budapest, Hungary
| | - Tamás Radovits
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
| | - Emese Csulak
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
| | | | - Bence Kopper
- Faculty of Kinesiology, Hungarian University of Sports Science, 1123 Budapest, Hungary
| | - Edit I. Buzás
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, 1085 Budapest, Hungary
- HCEMM-SU Extracellular Vesicle Research Group, 1089 Budapest, Hungary
- ELKH-SE Translational Extracellular Vesicle Research Group, 1089 Budapest, Hungary
| | - Nóra Sydó
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
- Department of Sports Medicine, Semmelweis University, 1122 Budapest, Hungary
| | - Béla Merkely
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
- Department of Sports Medicine, Semmelweis University, 1122 Budapest, Hungary
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33
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Tumor Microenvironment: Lactic Acid Promotes Tumor Development. J Immunol Res 2022; 2022:3119375. [PMID: 35733921 PMCID: PMC9207018 DOI: 10.1155/2022/3119375] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/19/2022] [Indexed: 12/17/2022] Open
Abstract
Lactic acid is a "metabolic waste" product of glycolysis that is produced in the body. However, the role of lactic acid in the development of human malignancies has gained increasing interest lately as a multifunctional small molecule chemical. There is evidence that tumor cells may create a large amount of lactic acid through glycolysis even when they have abundant oxygen. Tumor tissues have a higher quantity of lactic acid than normal tissues. Lactic acid is required for tumor development. Lactate is an immunomodulatory chemical that affects both innate and adaptive immune cells' effector functions. In immune cells, the lactate signaling pathway may potentially serve as a link between metabolism and immunity. Lactate homeostasis is significantly disrupted in the TME. Lactate accumulation results in acidosis, angiogenesis, immunosuppression, and tumor cell proliferation and survival, all of which are deleterious to health. Thus, augmenting anticancer immune responses by lactate metabolism inhibition may modify lactate levels in the tumor microenvironment. This review will evaluate the role of lactic acid in tumor formation, metastasis, prognosis, treatment, and histone modification. Our findings will be of considerable interest to readers, particularly those engaged in the therapeutic treatment of cancer patients. Treatments targeting the inhibition of lactate synthesis and blocking the source of lactate have emerged as a potential new therapeutic option for oncology patients. Additionally, lactic acid levels in the plasma may serve as biomarkers for disease stage and may be beneficial for evaluating therapy effectiveness in individuals with tumors.
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34
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Fearon U, Hanlon MM, Floudas A, Veale DJ. Cellular metabolic adaptations in rheumatoid arthritis and their therapeutic implications. Nat Rev Rheumatol 2022; 18:398-414. [PMID: 35440762 DOI: 10.1038/s41584-022-00771-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2022] [Indexed: 12/16/2022]
Abstract
Activation of endothelium and immune cells is fundamental to the initiation of autoimmune diseases such as rheumatoid arthritis (RA), and it results in trans-endothelial cell migration and synovial fibroblast proliferation, leading to joint destruction. In RA, the synovial microvasculature is highly dysregulated, resulting in inefficient oxygen perfusion to the synovium, which, along with the high metabolic demands of activated immune and stromal cells, leads to a profoundly hypoxic microenvironment. In inflamed joints, infiltrating immune cells and synovial resident cells have great requirements for energy and nutrients, and they adapt their metabolic profiles to generate sufficient energy to support their highly activated inflammatory states. This shift in metabolic capacity of synovial cells enables them to produce the essential building blocks to support their proliferation, activation and invasiveness. Furthermore, it results in the accumulation of metabolic intermediates and alteration of redox-sensitive pathways, affecting signalling pathways that further potentiate the inflammatory response. Importantly, the inflamed synovium is a multicellular tissue, with cells differing in their metabolic requirements depending on complex cell-cell interactions, nutrient supply, metabolic intermediates and transcriptional regulation. Therefore, understanding the complex interplay between metabolic and inflammatory pathways in synovial cells in RA will provide insight into the underlying mechanisms of disease pathogenesis.
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Affiliation(s)
- Ursula Fearon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, TCD, Dublin, Ireland. .,EULAR Centre of Excellence, Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin, Ireland.
| | - Megan M Hanlon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, TCD, Dublin, Ireland.,EULAR Centre of Excellence, Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin, Ireland
| | - Achilleas Floudas
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, TCD, Dublin, Ireland.,EULAR Centre of Excellence, Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin, Ireland
| | - Douglas J Veale
- EULAR Centre of Excellence, Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin, Ireland
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35
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Lu C, Yang D, Klement JD, Colson YL, Oberlies NH, Pearce CJ, Colby AH, Grinstaff MW, Ding HF, Shi H, Liu K. G6PD functions as a metabolic checkpoint to regulate granzyme B expression in tumor-specific cytotoxic T lymphocytes. J Immunother Cancer 2022; 10:jitc-2021-003543. [PMID: 35017152 PMCID: PMC8753452 DOI: 10.1136/jitc-2021-003543] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2021] [Indexed: 12/19/2022] Open
Abstract
Background Granzyme B is a key effector of cytotoxic T lymphocytes (CTLs), and its expression level positively correlates with the response of patients with mesothelioma to immune checkpoint inhibitor immunotherapy. Whether metabolic pathways regulate Gzmb expression in CTLs is incompletely understood. Methods A tumor-specific CTL and tumor coculture model and a tumor-bearing mouse model were used to determine the role of glucose-6-phosphate dehydrogenase (G6PD) in CTL function and tumor immune evasion. A link between granzyme B expression and patient survival was analyzed in human patients with epithelioid mesothelioma. Results Mesothelioma cells alone are sufficient to activate tumor-specific CTLs and to enhance aerobic glycolysis to induce a PD-1hi Gzmblo CTL phenotype. However, inhibition of lactate dehydrogenase A, the key enzyme of the aerobic glycolysis pathway, has no significant effect on tumor-induced CTL activation. Tumor cells induce H3K9me3 deposition at the promoter of G6pd, the gene that encodes the rate-limiting enzyme G6PD in the pentose phosphate pathway, to downregulate G6pd expression in tumor-specific CTLs. G6PD activation increases acetyl-coenzyme A (CoA) production to increase H3K9ac deposition at the Gzmb promoter and to increase Gzmb expression in tumor-specific CTLs converting them from a Gzmblo to a Gzmbhi phenotype, thus increasing CTL tumor lytic activity. Activation of G6PD increases Gzmb+ tumor-specific CTLs and suppresses tumor growth in tumor-bearing mice. Consistent with these findings, GZMB expression level was found to correlate with increased survival in patients with epithelioid mesothelioma. Conclusion G6PD is a metabolic checkpoint in tumor-activated CTLs. The H3K9me3/G6PD/acetyl-CoA/H3K9ac/Gzmb pathway is particularly important in CTL activation and immune evasion in epithelioid mesothelioma.
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Affiliation(s)
- Chunwan Lu
- School of Life Sciences, Tianjin University, Tianjin, China .,Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA
| | - Dafeng Yang
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA.,Georgia Cancer Center, Medical College of Georgia, Augusta, GA, USA.,Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - John D Klement
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA.,Georgia Cancer Center, Medical College of Georgia, Augusta, GA, USA.,Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Yolonda L Colson
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Nicholas H Oberlies
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, USA
| | | | - Aaron H Colby
- Ionic Pharmaceuticals, Brookline, MA, USA.,Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Mark W Grinstaff
- Ionic Pharmaceuticals, Brookline, MA, USA.,Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Han-Fei Ding
- Georgia Cancer Center, Medical College of Georgia, Augusta, GA, USA
| | - Huidong Shi
- Georgia Cancer Center, Medical College of Georgia, Augusta, GA, USA
| | - Kebin Liu
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA, USA .,Georgia Cancer Center, Medical College of Georgia, Augusta, GA, USA.,Charlie Norwood VA Medical Center, Augusta, GA, USA
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36
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Saha T, Dash C, Jayabalan R, Khiste S, Kulkarni A, Kurmi K, Mondal J, Majumder PK, Bardia A, Jang HL, Sengupta S. Intercellular nanotubes mediate mitochondrial trafficking between cancer and immune cells. NATURE NANOTECHNOLOGY 2022; 17:98-106. [PMID: 34795441 PMCID: PMC10071558 DOI: 10.1038/s41565-021-01000-4] [Citation(s) in RCA: 123] [Impact Index Per Article: 61.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/07/2021] [Indexed: 05/27/2023]
Abstract
Cancer progresses by evading the immune system. Elucidating diverse immune evasion strategies is a critical step in the search for next-generation immunotherapies for cancer. Here we report that cancer cells can hijack the mitochondria from immune cells via physical nanotubes. Mitochondria are essential for metabolism and activation of immune cells. By using field-emission scanning electron microscopy, fluorophore-tagged mitochondrial transfer tracing and metabolic quantification, we demonstrate that the nanotube-mediated transfer of mitochondria from immune cells to cancer cells metabolically empowers the cancer cells and depletes the immune cells. Inhibiting the nanotube assembly machinery significantly reduced mitochondrial transfer and prevented the depletion of immune cells. Combining a farnesyltransferase and geranylgeranyltransferase 1 inhibitor, namely, L-778123, which partially inhibited nanotube formation and mitochondrial transfer, with a programmed cell death protein 1 immune checkpoint inhibitor improved the antitumour outcomes in an aggressive immunocompetent breast cancer model. Nanotube-mediated mitochondrial hijacking can emerge as a novel target for developing next-generation immunotherapy agents for cancer.
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Affiliation(s)
- Tanmoy Saha
- Center for Engineered Therapeutics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA, USA
| | - Chinmayee Dash
- Center for Engineered Therapeutics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA, USA
| | - Ruparoshni Jayabalan
- Center for Engineered Therapeutics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA, USA
| | - Sachin Khiste
- Center for Engineered Therapeutics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA, USA
| | - Arpita Kulkarni
- Center for Engineered Therapeutics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Kiran Kurmi
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Jayanta Mondal
- Center for Engineered Therapeutics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA, USA
| | | | - Aditya Bardia
- Mass General Cancer Center, Harvard Medical School, Boston, MA, USA
| | - Hae Lin Jang
- Center for Engineered Therapeutics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - Shiladitya Sengupta
- Center for Engineered Therapeutics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA, USA.
- Dana-Farber Cancer Institute, Boston, MA, USA.
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37
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Kane H, LaMarche NM, Ní Scannail Á, Garza AE, Koay HF, Azad AI, Kunkemoeller B, Stevens B, Brenner MB, Lynch L. Longitudinal analysis of invariant natural killer T cell activation reveals a cMAF-associated transcriptional state of NKT10 cells. eLife 2022; 11:76586. [PMID: 36458691 PMCID: PMC9831610 DOI: 10.7554/elife.76586] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 11/30/2022] [Indexed: 12/05/2022] Open
Abstract
Innate T cells, including CD1d-restricted invariant natural killer T (iNKT) cells, are characterized by their rapid activation in response to non-peptide antigens, such as lipids. While the transcriptional profiles of naive, effector, and memory adaptive T cells have been well studied, less is known about the transcriptional regulation of different iNKT cell activation states. Here, using single-cell RNA-sequencing, we performed longitudinal profiling of activated murine iNKT cells, generating a transcriptomic atlas of iNKT cell activation states. We found that transcriptional signatures of activation are highly conserved among heterogeneous iNKT cell populations, including NKT1, NKT2, and NKT17 subsets, and human iNKT cells. Strikingly, we found that regulatory iNKT cells, such as adipose iNKT cells, undergo blunted activation and display constitutive enrichment of memory-like cMAF+ and KLRG1+ populations. Moreover, we identify a conserved cMAF-associated transcriptional network among NKT10 cells, providing novel insights into the biology of regulatory and antigen-experienced iNKT cells.
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Affiliation(s)
- Harry Kane
- Trinity Biomedical Science Institute, Trinity College DublinDublinIreland
| | - Nelson M LaMarche
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States
| | - Áine Ní Scannail
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States
| | - Amanda E Garza
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States
| | - Hui-Fern Koay
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States,Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of MelbourneMelbourneAustralia
| | - Adiba I Azad
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States
| | - Britta Kunkemoeller
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States
| | - Brenneth Stevens
- Trinity Biomedical Science Institute, Trinity College DublinDublinIreland,Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States
| | - Michael B Brenner
- Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States
| | - Lydia Lynch
- Trinity Biomedical Science Institute, Trinity College DublinDublinIreland,Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical SchoolBostonUnited States
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38
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Transcriptomic signatures of psychomotor slowing in peripheral blood of depressed patients: evidence for immunometabolic reprogramming. Mol Psychiatry 2021; 26:7384-7392. [PMID: 34535767 PMCID: PMC8881295 DOI: 10.1038/s41380-021-01258-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 07/25/2021] [Accepted: 07/30/2021] [Indexed: 02/08/2023]
Abstract
Inflammation impacts basal ganglia motor circuitry in association with psychomotor retardation, a key symptom of major depression (MD). We previously reported associations between circulating protein inflammatory biomarkers and psychomotor slowing as measured by neuropsychological tests probing psychomotor speed in patients with MD. To discover novel transcriptional signatures in peripheral blood immune cells related to psychomotor slowing, microarray data were analyzed in a primary cohort of 88 medically-stable, unmedicated, ambulatory MD patients. Results were confirmed and extended in a second cohort of 57 patients with treatment resistant depression (TRD) before and after anti-inflammatory challenge with the tumor necrosis factor antagonist infliximab versus placebo. Composite scores reflecting pure motor and cognitive-motor processing speed were linearly associated with 403 and 266 gene transcripts in each cohort, respectively (|R| > 0.30, p < 0.01), that were enriched for cytokine signaling and glycolysis-related pathways (p < 0.05). Unsupervised clustering in the primary cohort revealed two psychomotor slowing-associated gene co-expression modules that were enriched for interferon, interleukin-6, aerobic glycolysis, and oxidative phosphorylation pathways (p < 0.05, q < 0.1). Transcripts were predominantly derived from monocytes, plasmacytoid dendritic cells, and natural killer cells (p's < 0.05). In infliximab-treated TRD patients with high plasma C-reactive protein concentrations (>5 mg/L), two differential co-expression modules enriched for oxidative stress and mitochondrial degradation were associated with improvements in psychomotor reaction time (p < 0.05). These results indicate that inflammatory signaling and associated metabolic reprogramming in peripheral blood immune cells are associated with systemic inflammation in depression and may affect relevant brain circuits to promote psychomotor slowing.
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Zhao M, Quintana A, Zhang C, Andreyev AY, Kiosses W, Kuwana T, Murphy A, Hogan PG, Kronenberg M. Calcium signals regulate the functional differentiation of thymic iNKT cells. EMBO J 2021; 40:e107901. [PMID: 34169542 PMCID: PMC8365263 DOI: 10.15252/embj.2021107901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/20/2021] [Accepted: 05/25/2021] [Indexed: 11/09/2022] Open
Abstract
How natural or innate-like lymphocytes generate the capacity to produce IL-4 and other cytokines characteristic of type 2 immunity remains unknown. Invariant natural killer T (iNKT) cells differentiate in the thymus into NKT1, NKT2, and NKT17 subsets, similar to mature, peripheral CD4+ T helper cells. The mechanism for this differentiation was not fully understood. Here, we show that NKT2 cells required higher and prolonged calcium (Ca2+ ) signals and continuing activity of the calcium release-activated calcium (CRAC) channel, than their NKT1 counterparts. The sustained Ca2+ entry via CRAC pathway in NKT2 cells was apparently mediated by ORAI and controlled in part by the large mitochondrial Ca2+ uptake. Unique properties of mitochondria in NKT2 cells, including high activity of oxidative phosphorylation, may regulate mitochondrial Ca2+ buffering in NKT2 cells. In addition, the low Ca2+ extrusion rate may also contribute to the higher Ca2+ level in NKT2 cells. Altogether, we identified ORAI-dependent Ca2+ signaling connected with mitochondria and cellular metabolism, as a central regulatory pathway for the differentiation of NKT2 cells.
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Affiliation(s)
- Meng Zhao
- Division of Developmental ImmunologyLa Jolla Institute for ImmunologyLa JollaCAUSA
- Arthritis and Clinical Immunology ProgramOklahoma Medical Research FoundationOklahoma CityOKUSA
- Department of Microbiology and ImmunologyUniversity of Oklahoma Health Science CenterOklahoma CityOKUSA
| | - Ariel Quintana
- Division of Signaling and Gene ExpressionLa Jolla Institute for ImmunologyLa JollaCAUSA
- Translational Science DivisionClinical Science DepartmentMoffitt Cancer Center Magnolia CampusTampaFLUSA
| | - Chen Zhang
- Division of Signaling and Gene ExpressionLa Jolla Institute for ImmunologyLa JollaCAUSA
| | | | - William Kiosses
- Core MicroscopyLa Jolla Institute for ImmunologyLa JollaCAUSA
| | - Tomomi Kuwana
- Division of Immune RegulationLa Jolla Institute for ImmunologyLa JollaCAUSA
| | | | - Patrick G Hogan
- Division of Signaling and Gene ExpressionLa Jolla Institute for ImmunologyLa JollaCAUSA
- Moores Cancer CenterUniversity of California San DiegoLa JollaCAUSA
| | - Mitchell Kronenberg
- Division of Developmental ImmunologyLa Jolla Institute for ImmunologyLa JollaCAUSA
- Division of Biological SciencesUniversity of California, San DiegoLa JollaCAUSA
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40
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Khurana P, Burudpakdee C, Grupp SA, Beier UH, Barrett DM, Bassiri H. Distinct Bioenergetic Features of Human Invariant Natural Killer T Cells Enable Retained Functions in Nutrient-Deprived States. Front Immunol 2021; 12:700374. [PMID: 34434191 PMCID: PMC8380770 DOI: 10.3389/fimmu.2021.700374] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 07/20/2021] [Indexed: 12/19/2022] Open
Abstract
Invariant natural killer T (iNKT) cells comprise a unique subset of lymphocytes that are primed for activation and possess innate NK-like functional features. Currently, iNKT cell-based immunotherapies remain in early clinical stages, and little is known about the ability of these cells to survive and retain effector functions within the solid tumor microenvironment (TME) long-term. In conventional T cells (TCONV), cellular metabolism is linked to effector functions and their ability to adapt to the nutrient-poor TME. In contrast, the bioenergetic requirements of iNKT cells - particularly those of human iNKT cells - at baseline and upon stimulation are not well understood; neither is how these requirements affect effector functions such as production of cytokines and cytolytic proteins. We find that unlike TCONV, human iNKT cells are not dependent upon glucose or glutamine for these effector functions upon stimulation with anti-CD3 and anti-CD28. Additionally, transcriptional profiling revealed that stimulated human iNKT cells are less glycolytic than TCONV and display higher expression of fatty acid oxidation (FAO) and adenosine monophosphate-activated protein kinase (AMPK) pathway genes. Furthermore, stimulated iNKT cells displayed higher mitochondrial mass and membrane potential relative to TCONV. Real-time Seahorse metabolic flux analysis revealed that stimulated human iNKT cells utilize fatty acids as substrates for oxidation more than stimulated TCONV. Together, our data suggest that human iNKT cells possess different bioenergetic requirements from TCONV and display a more oxidative metabolic program relative to effector TCONV. Importantly, iNKT cell-based immunotherapeutic strategies could co-opt such unique features of iNKT cells to improve their efficacy and longevity of anti-tumor responses.
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Affiliation(s)
- Priya Khurana
- Division of Infectious Diseases, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Chakkapong Burudpakdee
- Division of Infectious Diseases, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Stephan A. Grupp
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Cell and Therapy Transplant Section, Division of Oncology, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Ulf H. Beier
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Division of Nephrology, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Janssen Research and Development, Spring House, PA, United States
| | | | - Hamid Bassiri
- Division of Infectious Diseases, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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41
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Daniel L, Tassery M, Lateur C, Thierry A, Herbelin A, Gombert JM, Barbarin A. Allotransplantation Is Associated With Exacerbation of CD8 T-Cell Senescence: The Particular Place of the Innate CD8 T-Cell Component. Front Immunol 2021; 12:674016. [PMID: 34367138 PMCID: PMC8334557 DOI: 10.3389/fimmu.2021.674016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 06/30/2021] [Indexed: 12/21/2022] Open
Abstract
Immunosenescence is a physiological process that is associated with changes in the immune system, particularly among CD8 T-cells. Recent studies have hypothesized that senescent CD8 T-cells are produced with chronologic age by chronic stimulation, leading to the acquisition of hallmarks of innate-like T-cells. While conventional CD8 T-cells are quite well characterized, CD8 T-cells sharing features of NK cells and memory CD8 T-cells, are a newly described immune cell population. They can be distinguished from conventional CD8 T-cells by their combined expression of panKIR/NKG2A and Eomesodermin (E), a unique phenotype closely associated with IFN-γ production in response to innate stimulation. Here, we first provided new evidence in favor of the innate character of panKIR/NKG2A(+) E(+) CD8 T-cells in normal subjects, documenting their position at an intermediate level in the innateness gradient in terms of both innate IFN-γ production and diminished mitochondrial mass. We also revealed that CD8 E(+) panKIR/NKG2A(+) T-cells, hereafter referred to as Innate E(+) CD8 T-cells, exhibit increased senescent (CD27(-) CD28(-)) phenotype, compared to their conventional memory counterparts. Surprisingly, this phenomenon was not dependent on age. Given that inflammation related to chronic viral infection is known to induce NK-like marker expression and a senescence phenotype among CD8 T-cells, we hypothesized that innate E(+) CD8 T-cells will be preferentially associated with exacerbated cellular senescence in response to chronic alloantigen exposure or CMV infection. Accordingly, in a pilot cohort of stable kidney allotransplant recipients, we observed an increased frequency of the Innate E(+) CD8 T-cell subset, together with an exacerbated senescent phenotype. Importantly, this phenotype cannot be explained by age alone, in clear contrast to their conventional memory counterparts. The senescent phenotype in CD8 T-cells was further increased in cytomegalovirus (CMV) positive serology transplant recipients, suggesting that transplantation and CMV, rather than aging by itself, may promote an exacerbated senescent phenotype of innate CD8 T-cells. In conclusion, we proposed that kidney transplantation, via the setting of inflammatory stimuli of alloantigen exposure and CMV infection, may exogenously age the CD8 T-cell compartment, especially its innate component. The physiopathological consequences of this change in the immune system remain to be elucidated.
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Affiliation(s)
- Lauren Daniel
- Inserm U1082, Poitiers, France.,Université de Poitiers, Poitiers, France
| | - Marion Tassery
- Service de Néphrologie, Hémodialyse et Transplantation, CHU de Poitiers, Poitiers, France
| | - Clara Lateur
- Service d'Immunologie et Inflammation, CHU de Poitiers, Poitiers, France
| | - Antoine Thierry
- Inserm U1082, Poitiers, France.,Université de Poitiers, Poitiers, France.,Service de Néphrologie, Hémodialyse et Transplantation, CHU de Poitiers, Poitiers, France
| | - André Herbelin
- Inserm U1082, Poitiers, France.,Université de Poitiers, Poitiers, France
| | - Jean-Marc Gombert
- Inserm U1082, Poitiers, France.,Université de Poitiers, Poitiers, France.,Service d'Immunologie et Inflammation, CHU de Poitiers, Poitiers, France
| | - Alice Barbarin
- Inserm U1082, Poitiers, France.,CHU de Poitiers, Poitiers, France
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42
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Cheng ZY, He TT, Gao XM, Zhao Y, Wang J. ZBTB Transcription Factors: Key Regulators of the Development, Differentiation and Effector Function of T Cells. Front Immunol 2021; 12:713294. [PMID: 34349770 PMCID: PMC8326903 DOI: 10.3389/fimmu.2021.713294] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 07/06/2021] [Indexed: 12/12/2022] Open
Abstract
The development and differentiation of T cells represents a long and highly coordinated, yet flexible at some points, pathway, along which the sequential and dynamic expressions of different transcriptional factors play prominent roles at multiple steps. The large ZBTB family comprises a diverse group of transcriptional factors, and many of them have emerged as critical factors that regulate the lineage commitment, differentiation and effector function of hematopoietic-derived cells as well as a variety of other developmental events. Within the T-cell lineage, several ZBTB proteins, including ZBTB1, ZBTB17, ZBTB7B (THPOK) and BCL6 (ZBTB27), mainly regulate the development and/or differentiation of conventional CD4/CD8 αβ+ T cells, whereas ZBTB16 (PLZF) is essential for the development and function of innate-like unconventional γδ+ T & invariant NKT cells. Given the critical role of T cells in host defenses against infections/tumors and in the pathogenesis of many inflammatory disorders, we herein summarize the roles of fourteen ZBTB family members in the development, differentiation and effector function of both conventional and unconventional T cells as well as the underlying molecular mechanisms.
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Affiliation(s)
- Zhong-Yan Cheng
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Ting-Ting He
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Xiao-Ming Gao
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Ying Zhao
- Department of Pathophysiology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Jun Wang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
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43
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Chen AN, Luo Y, Yang YH, Fu JT, Geng XM, Shi JP, Yang J. Lactylation, a Novel Metabolic Reprogramming Code: Current Status and Prospects. Front Immunol 2021; 12:688910. [PMID: 34177945 PMCID: PMC8222712 DOI: 10.3389/fimmu.2021.688910] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/27/2021] [Indexed: 12/15/2022] Open
Abstract
Lactate is an end product of glycolysis. As a critical energy source for mitochondrial respiration, lactate also acts as a precursor of gluconeogenesis and a signaling molecule. We briefly summarize emerging concepts regarding lactate metabolism, such as the lactate shuttle, lactate homeostasis, and lactate-microenvironment interaction. Accumulating evidence indicates that lactate-mediated reprogramming of immune cells and enhancement of cellular plasticity contribute to establishing disease-specific immunity status. However, the mechanisms by which changes in lactate states influence the establishment of diverse functional adaptive states are largely uncharacterized. Posttranslational histone modifications create a code that functions as a key sensor of metabolism and are responsible for transducing metabolic changes into stable gene expression patterns. In this review, we describe the recent advances in a novel lactate-induced histone modification, histone lysine lactylation. These observations support the idea that epigenetic reprogramming-linked lactate input is related to disease state outputs, such as cancer progression and drug resistance.
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Affiliation(s)
- An-Na Chen
- Department of Translational Medicine Center, Affiliated Hospital of Hangzhou Normal University, Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, Hangzhou, China
| | - Yan Luo
- Department of Translational Medicine Center, Affiliated Hospital of Hangzhou Normal University, Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, Hangzhou, China
| | - Yu-Han Yang
- Department of Translational Medicine Center, Affiliated Hospital of Hangzhou Normal University, Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, Hangzhou, China
| | - Jian-Tao Fu
- Department of Translational Medicine Center, Affiliated Hospital of Hangzhou Normal University, Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, Hangzhou, China
| | - Xiu-Mei Geng
- Department of Translational Medicine Center, Affiliated Hospital of Hangzhou Normal University, Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, Hangzhou, China
| | - Jun-Ping Shi
- Department of Translational Medicine Center, Affiliated Hospital of Hangzhou Normal University, Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, Hangzhou, China
| | - Jin Yang
- Department of Translational Medicine Center, Affiliated Hospital of Hangzhou Normal University, Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, Hangzhou, China
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44
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Lan R, Wan Z, Xu Y, Wang Z, Fu S, Zhou Y, Lin X, Han X, Luo Z, Miao J, Yin Y. Taurine Reprograms Mammary-Gland Metabolism and Alleviates Inflammation Induced by Streptococcus uberis in Mice. Front Immunol 2021; 12:696101. [PMID: 34177964 PMCID: PMC8222520 DOI: 10.3389/fimmu.2021.696101] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 05/24/2021] [Indexed: 11/17/2022] Open
Abstract
Streptococcus uberis (S. uberis) is an important pathogen causing mastitis, which causes continuous inflammation and dysfunction of mammary glands and leads to enormous economic losses. Most research on infection continues to be microbial metabolism-centric, and many overlook the fact that pathogens require energy from host. Mouse is a common animal model for studying bovine mastitis. In this perspective, we uncover metabolic reprogramming during host immune responses is associated with infection-driven inflammation, particularly when caused by intracellular bacteria. Taurine, a metabolic regulator, has been shown to effectively ameliorate metabolic diseases. We evaluated the role of taurine in the metabolic regulation of S. uberis-induced mastitis. Metabolic profiling indicates that S. uberis exposure triggers inflammation and metabolic dysfunction of mammary glands and mammary epithelial cells (the main functional cells in mammary glands). Challenge with S. uberis upregulates glycolysis and oxidative phosphorylation in MECs. Pretreatment with taurine restores metabolic homeostasis, reverses metabolic dysfunction by decrease of lipid, amino acid and especially energy disturbance in the infectious context, and alleviates excessive inflammatory responses. These outcomes depend on taurine-mediated activation of the AMPK–mTOR pathway, which inhibits the over activation of inflammatory responses and alleviates cellular damage. Thus, metabolic homeostasis is essential for reducing inflammation. Metabolic modulation can be used as a prophylactic strategy against mastitis.
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Affiliation(s)
- Riguo Lan
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Zhixin Wan
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yuanyuan Xu
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Zhenglei Wang
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Shaodong Fu
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yuanyuan Zhou
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xinguang Lin
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xiangan Han
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Zhenhua Luo
- School of Water, Energy & Environment, Cranfield University, Cranfield, United Kingdom
| | - Jinfeng Miao
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yulong Yin
- Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding Livestock & Poultry, Hunan Engineering & Research Center for Animal & Poultry Science, Key Laboratory of Agroecology in Subtropical Region, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Changsha, China
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45
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Mitochondrial metabolism is essential for invariant natural killer T cell development and function. Proc Natl Acad Sci U S A 2021; 118:2021385118. [PMID: 33753493 PMCID: PMC8020658 DOI: 10.1073/pnas.2021385118] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
We show CD1d-restricted natural killer (NK)T cells have distinct metabolic profiles compared with CD4+ conventional T cells. Mature NKT cells have poor fatty acid oxidation and exhibit reduced mitochondrial respiratory reserve in the steady state. In addition, NKT cell development is more sensitive to alterations in mitochondrial electron transport chain function than conventional T cells. Using T cell-specific mitochondrial complex III ablation in mice, we further demonstrate that mitochondrial metabolism plays a crucial role in NKT cell development and function by modulating T cell receptor/interleukin-15 signaling and NFAT activity. Collectively, our data provide evidence for a critical role of mitochondrial metabolism in NKT cell development and activation, opening a new avenue for NKT cell-based immunotherapy by manipulating NKT cell metabolism. Conventional T cell fate and function are determined by coordination between cellular signaling and mitochondrial metabolism. Invariant natural killer T (iNKT) cells are an important subset of “innate-like” T cells that exist in a preactivated effector state, and their dependence on mitochondrial metabolism has not been previously defined genetically or in vivo. Here, we show that mature iNKT cells have reduced mitochondrial respiratory reserve and iNKT cell development was highly sensitive to perturbation of mitochondrial function. Mice with T cell-specific ablation of Rieske iron-sulfur protein (RISP; T-Uqcrfs1−/−), an essential subunit of mitochondrial complex III, had a dramatic reduction of iNKT cells in the thymus and periphery, but no significant perturbation on the development of conventional T cells. The impaired development observed in T-Uqcrfs1−/− mice stems from a cell-autonomous defect in iNKT cells, resulting in a differentiation block at the early stages of iNKT cell development. Residual iNKT cells in T-Uqcrfs1−/− mice displayed increased apoptosis but retained the ability to proliferate in vivo, suggesting that their bioenergetic and biosynthetic demands were not compromised. However, they exhibited reduced expression of activation markers, decreased T cell receptor (TCR) signaling and impaired responses to TCR and interleukin-15 stimulation. Furthermore, knocking down RISP in mature iNKT cells diminished their cytokine production, correlating with reduced NFATc2 activity. Collectively, our data provide evidence for a critical role of mitochondrial metabolism in iNKT cell development and activation outside of its traditional role in supporting cellular bioenergetic demands.
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Abstract
Cellular metabolism is critical for generating energy and macromolecules for cell growth and survival. In recent years, the importance of metabolism in mediating T cell differentiation, proliferation, and function has been a hot topic of investigation. However, very little is known about metabolic regulation in invariant natural killer T (iNKT) cells. In this viewpoint, we will discuss what is currently known about immunometabolism in iNKT cells and how these findings relate to CD4 T cells.
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47
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Amini A, Pang D, Hackstein CP, Klenerman P. MAIT Cells in Barrier Tissues: Lessons from Immediate Neighbors. Front Immunol 2020; 11:584521. [PMID: 33329559 PMCID: PMC7734211 DOI: 10.3389/fimmu.2020.584521] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022] Open
Abstract
Mucosal-associated invariant T (MAIT) cells are innate-like T cells present at considerable frequencies in human blood and barrier tissues, armed with an expanding array of effector functions in response to homeostatic perturbations. Analogous to other barrier immune cells, their phenotype and function is driven by crosstalk with host and dynamic environmental factors, most pertinently the microbiome. Given their distribution, they must function in diverse extracellular milieus. Tissue-specific and adapted functions of barrier immune cells are shaped by transcriptional programs and regulated through a blend of local cellular, inflammatory, physiological, and metabolic mediators unique to each microenvironment. This review compares the phenotype and function of MAIT cells with other barrier immune cells, highlighting potential areas for future exploration. Appreciation of MAIT cell biology within tissues is crucial to understanding their niche in health and disease.
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Affiliation(s)
- Ali Amini
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
| | - Declan Pang
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
| | - Carl-Philipp Hackstein
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
| | - Paul Klenerman
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Peter Medawar Building for Pathogen Research, University of Oxford, Oxford, United Kingdom
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48
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Naik A, Decock J. Lactate Metabolism and Immune Modulation in Breast Cancer: A Focused Review on Triple Negative Breast Tumors. Front Oncol 2020; 10:598626. [PMID: 33324565 PMCID: PMC7725706 DOI: 10.3389/fonc.2020.598626] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/30/2020] [Indexed: 12/19/2022] Open
Abstract
Triple negative breast cancer (TNBC) is an aggressive subtype of breast cancer associated with poor prognosis, early recurrence, and the lack of durable chemotherapy responses and specific targeted treatments. The recent FDA approval for immune checkpoint inhibition in combination with nab-paclitaxel for the treatment of metastatic TNBC created opportunity to advocate for immunotherapy in TNBC patients. However, improving the current low response rates is vital. Most cancers, including TNBC tumors, display metabolic plasticity and undergo reprogramming into highly glycolytic tumors through the Warburg effect. Consequently, accumulation of the metabolic byproduct lactate and extracellular acidification is often observed in several solid tumors, thereby exacerbating tumor cell proliferation, metastasis, and angiogenesis. In this review, we focus on the role of lactate acidosis in the microenvironment of glycolytic breast tumors as a major driver for immune evasion with a special emphasis on TNBCs. In particular, we will discuss the role of lactate regulators such as glucose transporters, lactate dehydrogenases, and lactate transporters in modulating immune functionality and checkpoint expression in numerous immune cell types. This review aims to spark discussion on interventions targeting lactate acidosis in combination with immunotherapy to provide an effective means of improving response to immune checkpoint inhibitors in TNBC, in addition to highlighting challenges that may arise from TNBC tumor heterogeneity.
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Affiliation(s)
- Adviti Naik
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
| | - Julie Decock
- Cancer Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
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49
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AlZaim I, Hammoud SH, Al-Koussa H, Ghazi A, Eid AH, El-Yazbi AF. Adipose Tissue Immunomodulation: A Novel Therapeutic Approach in Cardiovascular and Metabolic Diseases. Front Cardiovasc Med 2020; 7:602088. [PMID: 33282920 PMCID: PMC7705180 DOI: 10.3389/fcvm.2020.602088] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/22/2020] [Indexed: 12/12/2022] Open
Abstract
Adipose tissue is a critical regulator of systemic metabolism and bodily homeostasis as it secretes a myriad of adipokines, including inflammatory and anti-inflammatory cytokines. As the main storage pool of lipids, subcutaneous and visceral adipose tissues undergo marked hypertrophy and hyperplasia in response to nutritional excess leading to hypoxia, adipokine dysregulation, and subsequent low-grade inflammation that is characterized by increased infiltration and activation of innate and adaptive immune cells. The specific localization, physiology, susceptibility to inflammation and the heterogeneity of the inflammatory cell population of each adipose depot are unique and thus dictate the possible complications of adipose tissue chronic inflammation. Several lines of evidence link visceral and particularly perivascular, pericardial, and perirenal adipose tissue inflammation to the development of metabolic syndrome, insulin resistance, type 2 diabetes and cardiovascular diseases. In addition to the implication of the immune system in the regulation of adipose tissue function, adipose tissue immune components are pivotal in detrimental or otherwise favorable adipose tissue remodeling and thermogenesis. Adipose tissue resident and infiltrating immune cells undergo metabolic and morphological adaptation based on the systemic energy status and thus a better comprehension of the metabolic regulation of immune cells in adipose tissues is pivotal to address complications of chronic adipose tissue inflammation. In this review, we discuss the role of adipose innate and adaptive immune cells across various physiological and pathophysiological states that pertain to the development or progression of cardiovascular diseases associated with metabolic disorders. Understanding such mechanisms allows for the exploitation of the adipose tissue-immune system crosstalk, exploring how the adipose immune system might be targeted as a strategy to treat cardiovascular derangements associated with metabolic dysfunctions.
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Affiliation(s)
- Ibrahim AlZaim
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Safaa H Hammoud
- Department of Pharmacology and Therapeutics, Beirut Arab University, Beirut, Lebanon
| | - Houssam Al-Koussa
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
| | - Alaa Ghazi
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
| | - Ali H Eid
- Department of Pharmacology and Therapeutics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Department of Basic Medical Sciences, College of Medicine, Qatar University, Doha, Qatar
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
| | - Ahmed F El-Yazbi
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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50
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Lactate in the Tumor Microenvironment: An Essential Molecule in Cancer Progression and Treatment. Cancers (Basel) 2020; 12:cancers12113244. [PMID: 33153193 PMCID: PMC7693872 DOI: 10.3390/cancers12113244] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/16/2020] [Accepted: 10/28/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary The role of lactate in cancer described by Otto Warburg in 1927 states that cancer cells uptake high amount of glucose with a marked increase in lactate production, this is known as the “Warburg effect”. Since then lactate turn out to be a major signaling molecule in cancer progression. Its release from tumor cells is accompanied by acidification ranging from 6.3 to 6.9 in the tumor microenvironment (TME) which favors processes such as tumor promotion, angiogenesis, metastasis, tumor resistance and more importantly, immunosuppression which has been associated with a poor outcome. The goal of this review is to examine and discuss in deep detail the recent studies that address the role of lactate in all these cancerous processes. Lastly, we explore the efforts to target the lactate production and its transport as a promising approach for cancer therapeutics. Abstract Cancer is a complex disease that includes the reprogramming of metabolic pathways by malignant proliferating cells, including those affecting the tumor microenvironment (TME). The “TME concept” was introduced in recognition of the roles played by factors other than tumor cells in cancer progression. In response to the hypoxic or semi-hypoxic characteristic of the TME, cancer cells generate a large amount of lactate via the metabolism of glucose and glutamine. Export of this newly generated lactate by the tumor cells together with H+ prevents intracellular acidification but acidifies the TME. In recent years, the importance of lactate and acidosis in carcinogenesis has gained increasing attention, including the role of lactate as a tumor-promoting metabolite. Here we review the existing literature on lactate metabolism in tumor cells and the ability of extracellular lactate to direct the metabolic reprogramming of those cells. Studies demonstrating the roles of lactate in biological processes that drive or sustain carcinogenesis (tumor promotion, angiogenesis, metastasis and tumor resistance) and lactate’s role as an immunosuppressor that contributes to tumor evasion are also considered. Finally, we consider recent therapeutic efforts using available drugs directed at and interfering with lactate production and transport in cancer treatment.
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