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Bartoloni B, Mannelli M, Gamberi T, Fiaschi T. The Multiple Roles of Lactate in the Skeletal Muscle. Cells 2024; 13:1177. [PMID: 39056759 PMCID: PMC11274880 DOI: 10.3390/cells13141177] [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: 05/31/2024] [Revised: 06/27/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Believed for a long time to be merely a waste product of cell metabolism, lactate is now considered a molecule with several roles, having metabolic and signalling functions together with a new, recently discovered role as an epigenetic modulator. Lactate produced by the skeletal muscle during physical exercise is conducted to the liver, which uses the metabolite as a gluconeogenic precursor, thus generating the well-known "Cori cycle". Moreover, the presence of lactate in the mitochondria associated with the lactate oxidation complex has become increasingly clear over the years. The signalling role of lactate occurs through binding with the GPR81 receptor, which triggers the typical signalling cascade of the G-protein-coupled receptors. Recently, it has been demonstrated that lactate regulates chromatin state and gene transcription by binding to histones. This review aims to describe the different roles of lactate in skeletal muscle, in both healthy and pathological conditions, and to highlight how lactate can influence muscle regeneration by acting directly on satellite cells.
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Affiliation(s)
- Bianca Bartoloni
- Dipartimento di Scienze Biomediche, Sperimentali e Cliniche "M. Serio", Università degli Studi di Firenze, 50134 Firenze, Italy
| | - Michele Mannelli
- Dipartimento di Scienze Biomediche, Sperimentali e Cliniche "M. Serio", Università degli Studi di Firenze, 50134 Firenze, Italy
| | - Tania Gamberi
- Dipartimento di Scienze Biomediche, Sperimentali e Cliniche "M. Serio", Università degli Studi di Firenze, 50134 Firenze, Italy
| | - Tania Fiaschi
- Dipartimento di Scienze Biomediche, Sperimentali e Cliniche "M. Serio", Università degli Studi di Firenze, 50134 Firenze, Italy
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2
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Huang M, Liu M, Wang R, Man Y, Zhou H, Xu ZX, Wang Y. The crosstalk between glucose metabolism and telomerase regulation in cancer. Biomed Pharmacother 2024; 175:116643. [PMID: 38696988 DOI: 10.1016/j.biopha.2024.116643] [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: 03/28/2024] [Accepted: 04/24/2024] [Indexed: 05/04/2024] Open
Abstract
Accumulated alterations in metabolic control provide energy and anabolic demands for enhanced cancer cell proliferation. Exemplified by the Warburg effect, changes in glucose metabolism during cancer progression are widely recognized as a characteristic of metabolic disorders. Since telomerases are a vital factor in maintaining DNA integrity and stability, any damage threatening telomerases could have a severe impact on DNA and, subsequently, whole-cell homeostasis. However, it remains unclear whether the regulation of glucose metabolism in cancer is connected to the regulation of telomerase. In this review, we present the latest insights into the crosstalk between telomerase function and glucose metabolism in cancer cells. However, at this moment this subject is not well investigated that the association is mostly indirectly regulations and few explicit regulating pathways were identified between telomerase and glucose metabolism. Therefore, the information presented in this review can provide a scientific basis for further research on the detail mechanism and the clinical application of cancer therapy, which could be valuable in improving the effectiveness of chemotherapy.
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Affiliation(s)
- Mingrui Huang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, Jilin 130021, China; The First Norman Bethune College of Clinical Medicine, Jilin University, Changchun 130021, China
| | - Mingdi Liu
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, Jilin 130021, China
| | - Ruijia Wang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, Jilin 130021, China; The First Norman Bethune College of Clinical Medicine, Jilin University, Changchun 130021, China
| | - Yifan Man
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, Jilin 130021, China; The First Norman Bethune College of Clinical Medicine, Jilin University, Changchun 130021, China
| | - Honglan Zhou
- Department of Urology, the First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Zhi-Xiang Xu
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, Jilin 130021, China.
| | - Yishu Wang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, Jilin 130021, China.
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3
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Deng W, He Q, Zhang W. Analysis of the mechanism of curcumin against osteoarthritis using metabolomics and transcriptomics. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:3313-3329. [PMID: 37938371 PMCID: PMC11074044 DOI: 10.1007/s00210-023-02785-y] [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: 08/28/2023] [Accepted: 10/12/2023] [Indexed: 11/09/2023]
Abstract
Curcumin, a polyphenolic compound derived from the turmeric plant (Curcuma longa), has been extensively studied for its anti-inflammatory and anti-proliferative properties. The safety and efficacy of curcumin have been thoroughly validated. Nevertheless, the underlying mechanism for treating osteoarthritis remains ambiguous. This study aims to reveal the potential mechanism of curcumin in treating osteoarthritis by using metabolomics and transcriptomics. Firstly, we validated the effect of curcumin on inflammatory factors in human articular chondrocytes. Secondly, we explored the cellular metabolism mechanism of curcumin against osteoarthritis using cell metabolomics. Thirdly, we assessed the differences in gene expression of human articular chondrocytes through transcriptomics. Lastly, to evaluate the essential targets and elucidate the potential mechanism underlying the therapeutic effects of curcumin in osteoarthritis, we conducted a screening of the proteins within the shared pathway of metabolomics and transcriptomics. Our results demonstrated that curcumin significantly decreased the levels of inflammatory markers, such as IL-β, IL-6, and TNF-α, in human articular chondrocytes. Cell metabolomics identified 106 differential metabolites, including beta-aminopropionitrile, 3-amino-2-piperidone, pyrrole-2-carboxaldehyde, and various other components. The transcriptomic analysis yielded 1050 differential mRNAs. Enrichment analysis showed that the differential metabolites and mRNAs were significantly enriched in seven pathways, including glycine, serine, and threonine metabolism; pentose and glucuronate interconversions; glycerolipid metabolism; histidine metabolism; mucin-type o-glycan biosynthesis; inositol phosphate metabolism; and cysteine and methionine metabolism. A total of 23 key targets were identified to be involved in these pathways. We speculate that curcumin may alleviate osteoarthritis by targeting key proteins involved in glycine, serine, and threonine metabolism; inhibiting pyruvate production; and modulating glycolysis.
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Affiliation(s)
- Wenxiang Deng
- College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China
| | - Qinghu He
- Department of Rehabilitation and Healthcare, Hunan University of Medicine, Huaihua, 418000, Hunan, China.
- College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China.
| | - Wenan Zhang
- College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China
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4
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Feng X, Shang J, Gu Z, Luo X, Chen Y, Liu Y. Lactic Acid Chemical Peeling in Skin Disorders. Clin Cosmet Investig Dermatol 2024; 17:901-909. [PMID: 38682041 PMCID: PMC11055559 DOI: 10.2147/ccid.s455700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 04/13/2024] [Indexed: 05/01/2024]
Abstract
Lactic acid is the most widely occurring natural organic acid in nature. It not only exhibits mild and safe properties but also possesses multiple physiological activities, such as antibacterial effects, immune regulation, and promotion of wound healing, making it one of the most popular chemical peeling agents. Chemical peels are commonly used in the field of aesthetic dermatology as a non-invasive therapeutic approach. This research aims to provide valuable references for clinical dermatologists by summarizing the characteristics of lactic acid, elucidating its mechanism of action in peeling, and investigating the clinical applications of this compound. Furthermore, it anticipates the potential for lactic acid to be the most suitable chemical peeling agent for Chinese skin.
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Affiliation(s)
- Xiaoyue Feng
- Product Research & Development Center, Beijing Underproved Medical Technology Co., LTD, Beijing, People’s Republic of China
| | - Jianli Shang
- Product Research & Development Center, Beijing Underproved Medical Technology Co., LTD, Beijing, People’s Republic of China
| | - Zhengping Gu
- Product Research & Development Center, Beijing Underproved Medical Technology Co., LTD, Beijing, People’s Republic of China
| | - Xingyi Luo
- Product Research & Development Center, Beijing Underproved Medical Technology Co., LTD, Beijing, People’s Republic of China
| | - Yong Chen
- Product Research & Development Center, Beijing Underproved Medical Technology Co., LTD, Beijing, People’s Republic of China
| | - Youting Liu
- Product Research & Development Center, Beijing Underproved Medical Technology Co., LTD, Beijing, People’s Republic of China
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5
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Kopecky BJ, Lavine KJ. Cardiac macrophage metabolism in health and disease. Trends Endocrinol Metab 2024; 35:249-262. [PMID: 37993313 PMCID: PMC10949041 DOI: 10.1016/j.tem.2023.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/24/2023]
Abstract
Cardiac macrophages are essential mediators of cardiac development, tissue homeostasis, and response to injury. Cell-intrinsic shifts in metabolism and availability of metabolites regulate macrophage function. The human and mouse heart contain a heterogeneous compilation of cardiac macrophages that are derived from at least two distinct lineages. In this review, we detail the unique functional roles and metabolic profiles of tissue-resident and monocyte-derived cardiac macrophages during embryonic development and adult tissue homeostasis and in response to pathologic and physiologic stressors. We discuss the metabolic preferences of each macrophage lineage and how metabolism influences monocyte fate specification. Finally, we highlight the contribution of cardiac macrophages and derived metabolites on cell-cell communication, metabolic health, and disease pathogenesis.
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Affiliation(s)
- Benjamin J Kopecky
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kory J Lavine
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA; Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA.
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Shi W, Cassmann TJ, Bhagwate AV, Hitosugi T, Ip WKE. Lactic acid induces transcriptional repression of macrophage inflammatory response via histone acetylation. Cell Rep 2024; 43:113746. [PMID: 38329873 PMCID: PMC10957222 DOI: 10.1016/j.celrep.2024.113746] [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: 08/09/2023] [Revised: 12/09/2023] [Accepted: 01/22/2024] [Indexed: 02/10/2024] Open
Abstract
Lactic acid has emerged as an important modulator of immune cell function. It can be produced by both gut microbiota and the host metabolism at homeostasis and during disease states. The production of lactic acid in the gut microenvironment is vital for tissue homeostasis. In the present study, we examined how lactic acid integrates cellular metabolism to shape the epigenome of macrophages during pro-inflammatory response. We found that lactic acid serves as a primary fuel source to promote histone H3K27 acetylation, which allows the expression of immunosuppressive gene program including Nr4a1. Consequently, macrophage pro-inflammatory function was transcriptionally repressed. Furthermore, the histone acetylation induced by lactic acid promotes a form of long-term immunosuppression ("trained immunosuppression"). Pre-exposure to lactic acid induces lipopolysaccharide tolerance. These findings thus indicate that lactic acid sensing and its effect on chromatin remodeling in macrophages represent a key homeostatic mechanism that can provide a tolerogenic tissue microenvironment.
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Affiliation(s)
- Weiwei Shi
- Department of Immunology, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA
| | - Tiffany J Cassmann
- Department of Immunology, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA
| | - Aditya Vijay Bhagwate
- Departments of Health Science Research, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA
| | - Taro Hitosugi
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA
| | - W K Eddie Ip
- Department of Immunology, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA; Division of Gastroenterology and Hepatology, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA.
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Cheng J, Zhang G, Liu L, Luo J, Peng X. Anti-inflammatory activity of β-glucans from different sources before and after fermentation by fecal bacteria in vitro. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:1116-1131. [PMID: 37740718 DOI: 10.1002/jsfa.12997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 04/17/2023] [Accepted: 09/23/2023] [Indexed: 09/25/2023]
Abstract
BACKGROUND β-Glucans are widely sourced and have various physiological effects, including anti-inflammatory effects. However, the strength of the anti-inflammatory activity of β-glucans from different sources remains unknown due to the lack of rapid and effective biomarkers. This study therefore aimed to screen out the β-glucans with strong anti-inflammatory activity from five different sources and to further screen out possible biomarkers in metabolites after fermenting the β-glucans with gut microorganisms. RESULTS The results showed that all five β-glucans inhibited the production of lipopolysaccharide (LPS)-induced pro-inflammatory mediators and suppressed the mRNA expression level of TLR4/MyD88. Their anti-inflammatory mechanisms involved the inhibition of intracellular reactive oxygen species (ROS) production and suppression of mRNA expression of the NF-κB pathway and JNK pathway. Among them, barley β-glucan exhibited the strongest anti-inflammatory effect, followed by Ganoderma lucidum β-glucan. Enhanced anti-inflammatory activity of β-glucan was found after fermentation and may be related to the increased abundance of metabolites such as vanillin, dihydroxyphenylacetic acid, caffeic acid, acetic acid, butyric acid, and lactic acid. They were strongly positively correlated to the abundance of beneficial bacteria such as Blautia, suggesting that the production of those metabolites may be responsible for the flourishing of the beneficial bacteria. CONCLUSION In conclusion, barley was a preferred raw material for the preparation of β-glucans with strong anti-inflammatory activity. Vanillin, dihydroxyphenylacetic acid, caffeic acid, acetic acid, butyric acid, and lactic acid were the possible biomarkers that could be utilized to evaluate the anti-inflammatory effect of β-glucans. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Jing Cheng
- Department of Food Science and Engineering, Jinan University, Guangzhou, China
| | - Guangwen Zhang
- Department of Food Science and Engineering, Jinan University, Guangzhou, China
| | - Liu Liu
- Department of Food Science and Engineering, Jinan University, Guangzhou, China
| | - Jianming Luo
- Department of Food Science and Engineering, Jinan University, Guangzhou, China
| | - Xichun Peng
- Department of Food Science and Engineering, Jinan University, Guangzhou, China
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Qian J, Li X, Yin Z, Dai Y, Zhang H, Li H, Peng C, Chen W. Yogurt Alleviates Imiquimod-Induced Psoriasis by Activating the Lactate/GPR81 Signaling Axis in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:1055-1066. [PMID: 38170675 DOI: 10.1021/acs.jafc.3c05049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
In addition to colorectal cancer and metabolic syndrome, regular yogurt consumption has shown promise in improving skin inflammation. In this study, we investigated the effects and possible mechanisms of yogurt on imiquimod-induced psoriasis-like inflammation in mice. After oral administration with yogurt (18 or 36 g/kg) and/or its main metabolite lactate (250 or 500 mg/kg) for 3 days, the mice were treated with a topical dose of 62.5 mg of imiquimod (IMQ) cream for seven consecutive days. Data showed that yogurt and lactate treatment significantly reduced the severity of psoriasis-like skin lesions, excessive keratinocyte proliferation, and immune cell infiltration. Mechanistically, we found that the genetic deficiency of the lactate receptor GPR81 aggravated psoriasis-like features in mice. Activation of the lactate/GPR81 axis inhibited the degradation of IκBα, prevented the nuclear translocation of histone deacetylase 3 (HDAC3) in macrophages, and thus constrained skin inflammation. Overall, these findings suggest that yogurt consumption effectively protects against experimental psoriasis and targeting the lactate/GPR81 signaling axis could be a promising approach for psoriasis inflammation management.
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Affiliation(s)
- Jin Qian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiaojing Li
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zihao Yin
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yufeng Dai
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Haitao Li
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Cong Peng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410012, Hunan China
| | - Wei Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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Zhang Y, Zhang C, Wang J, Wen Y, Li H, Liu X. The investigation of soybean protein isolates and soybean peptides assisting Lactobacillus plantarum K25 to inhibit Escherichia coli. Curr Res Food Sci 2023; 8:100662. [PMID: 38188652 PMCID: PMC10767262 DOI: 10.1016/j.crfs.2023.100662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/08/2023] [Accepted: 12/10/2023] [Indexed: 01/09/2024] Open
Abstract
Soybean protein isolates and their hydrolysates are considered as one of the most high-quality proteins among plant proteins, and current research has shown that they have potential probiotic functions. The purpose of this study was to investigate the effects of digested soybean protein isolates (dSPI) and digested soybean peptides (dPEP) on L. plantarum K25 alone and the two bacteria when co-cultured with E. coli. It showed that dSPI and dPEP promoted the growth and metabolism of L. plantarum K25, and dSPI had a better effect. Besides, dSPI and dPEP still promoted the growth and organic acid secretion of L. plantarum K25 when co-cultured with E. coli, and the dPEP treatment was more effective than dSPI. Moreover, dSPI and dPEP reduced the survival rate of E. coli when co-cultured with L. plantarum K25. These results to some extent explained the cooperation of dSPI and dPEP with L. plantarum K25 to produce acid thereby weaken the growth of E. coli.
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Affiliation(s)
- Yinxiao Zhang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, China
| | - Chi Zhang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, China
| | - Jingyi Wang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, China
| | - Yanchao Wen
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, China
| | - He Li
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, China
| | - Xinqi Liu
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, China
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Roy RM, Allawzi A, Burns N, Sul C, Rubio V, Graham J, Stenmark K, Nozik ES, Tuder RM, Vohwinkel CU. Lactate produced by alveolar type II cells suppresses inflammatory alveolar macrophages in acute lung injury. FASEB J 2023; 37:e23316. [PMID: 37983890 PMCID: PMC10914122 DOI: 10.1096/fj.202301722r] [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: 08/25/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/22/2023]
Abstract
Alveolar inflammation is a hallmark of acute lung injury (ALI), and its clinical correlate is acute respiratory distress syndrome-and it is as a result of interactions between alveolar type II cells (ATII) and alveolar macrophages (AM). In the setting of acute injury, the microenvironment of the intra-alveolar space is determined in part by metabolites and cytokines and is known to shape the AM phenotype. In response to ALI, increased glycolysis is observed in AT II cells, mediated by the transcription factor hypoxia-inducible factor (HIF) 1α, which has been shown to decrease inflammation. We hypothesized that in acute lung injury, lactate, the end product of glycolysis, produced by ATII cells shifts AMs toward an anti-inflammatory phenotype, thus mitigating ALI. We found that local intratracheal delivery of lactate improved ALI in two different mouse models. Lactate shifted cytokine expression of murine AMs toward increased IL-10, while decreasing IL-1 and IL-6 expression. Mice with ATII-specific deletion of Hif1a and mice treated with an inhibitor of lactate dehydrogenase displayed exacerbated ALI and increased inflammation with decreased levels of lactate in the bronchoalveolar lavage fluid; however, all those parameters improved with intratracheal lactate. When exposed to LPS (to recapitulate an inflammatory stimulus as it occurs in ALI), human primary AMs co-cultured with alveolar epithelial cells had reduced inflammatory responses. Taken together, these studies reveal an innate protective pathway, in which lactate produced by ATII cells shifts AMs toward an anti-inflammatory phenotype and dampens excessive inflammation in ALI.
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Affiliation(s)
- René M. Roy
- Children’s Hospital Colorado, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Ayed Allawzi
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Nana Burns
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Christina Sul
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Victoria Rubio
- Children’s Hospital Colorado, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jessica Graham
- Children’s Hospital Colorado, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kurt Stenmark
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Eva S. Nozik
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Rubin M. Tuder
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Division of Pulmonary Sciences and Critical Care Medicine, Program in Translational Lung Research, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Christine U. Vohwinkel
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
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11
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Li K, Yang M, Jia L, Tian M, Du J, Wu Y, Yuan L, Li L, Ma Y. The Prevention Effect of Lactobacillus plantarum 17-5 on Escherichia coli-Induced Mastitis in Mice. Probiotics Antimicrob Proteins 2023; 15:1644-1652. [PMID: 36790662 DOI: 10.1007/s12602-023-10047-9] [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] [Accepted: 02/07/2023] [Indexed: 02/16/2023]
Abstract
Mastitis is the most economically important disease affecting the dairy industry worldwide. Lactobacillus plantarum, an important probiotic with a wide range of applications, has potential anti-inflammatory properties and has become a currently strong candidate for mastitis therapies. In the current study, we evaluated the prevention effect of Lactobacillus plantarum 17-5 on Escherichia coli-induced mastitis in mice. The results showed that pretreatment with L. plantarum 17-5 maintained the integrity of tight junctions; improved inflammatory injury; decreased MPO activity and the mRNA expression levels of IL1β, IL6, and TNFα; and inhibited the NF-κB and MAPK signaling pathways in mice mammary tissue. The results indicated that Lactobacillus plantarum 17-5 had excellent anti-inflammatory activities and could be developed into microecological preparation for clinical use to prevent mastitis.
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Affiliation(s)
- Ke Li
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Ming Yang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Li Jia
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Mengyue Tian
- College of Life Science and Food Engineering, Hebei University of Engineering, Handan, 056038, Hebei, China
| | - Jinliang Du
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Yinghao Wu
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Lining Yuan
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Lianmin Li
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Yuzhong Ma
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China.
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12
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Yu K, Li Q, Sun X, Peng X, Tang Q, Chu H, Zhou L, Wang B, Zhou Z, Deng X, Yang J, Lv J, Liu R, Miao C, Zhao W, Yao Z, Wang Q. Bacterial indole-3-lactic acid affects epithelium-macrophage crosstalk to regulate intestinal homeostasis. Proc Natl Acad Sci U S A 2023; 120:e2309032120. [PMID: 37903267 PMCID: PMC10636326 DOI: 10.1073/pnas.2309032120] [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: 06/03/2023] [Accepted: 09/27/2023] [Indexed: 11/01/2023] Open
Abstract
Tryptophan and its derivatives perform a variety of biological functions; however, the role and specific mechanism of many tryptophan derivatives in intestinal inflammation remain largely unclear. Here, we identified that an Escherichia coli strain (Ec-TMU) isolated from the feces of tinidazole-treated individuals, and indole-3-lactic acid (ILA) in its supernatant, decreased the susceptibility of mice to dextran sulfate sodium-induced colitis. Ec-TMU and ILA contribute to the relief of colitis by inhibiting the production of epithelial CCL2/7, thereby reducing the accumulation of inflammatory macrophages in vitro and in vivo. Mechanistically, ILA downregulates glycolysis, NF-κB, and HIF signaling pathways via the aryl hydrocarbon receptor, resulting in decreased CCL2/7 production in epithelial cells. Clinical evidence suggests that the fecal ILA level is negatively correlated with the progression indicator of inflammatory bowel diseases. These results demonstrate that ILA has the potential to regulate intestinal homeostasis by modulating epithelium-macrophage interactions.
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Affiliation(s)
- Kaiyuan Yu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Qianqian Li
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Xuan Sun
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Xianping Peng
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Qiang Tang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Hongyu Chu
- Department of gastroenterology and hepatology, Tianjin Medical University general hospital, Tianjin Medical University, Tianjin300070, China
| | - Lu Zhou
- Department of gastroenterology and hepatology, Tianjin Medical University general hospital, Tianjin Medical University, Tianjin300070, China
| | - Bangmao Wang
- Department of gastroenterology and hepatology, Tianjin Medical University general hospital, Tianjin Medical University, Tianjin300070, China
| | - Zhemin Zhou
- Pasteurien College, Suzhou Medical College of Soochow University, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Suzhou, Jiangsu215123, China
| | - Xueqin Deng
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Jianming Yang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Junqiang Lv
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Ran Liu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Chunhui Miao
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Wei Zhao
- The School and Hospital of Stomatology, Tianjin Medical University, Tianjin300070, China
| | - Zhi Yao
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
| | - Quan Wang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin300070, China
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13
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Peng Y, Wu Q, Ding X, Wang L, Gong H, Feng C, Liu T, Zhu H. A hypoxia- and lactate metabolism-related gene signature to predict prognosis of sepsis: discovery and validation in independent cohorts. Eur J Med Res 2023; 28:320. [PMID: 37661250 PMCID: PMC10476321 DOI: 10.1186/s40001-023-01307-z] [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: 06/27/2023] [Accepted: 08/21/2023] [Indexed: 09/05/2023] Open
Abstract
BACKGROUND High throughput gene expression profiling is a valuable tool in providing insight into the molecular mechanism of human diseases. Hypoxia- and lactate metabolism-related genes (HLMRGs) are fundamentally dysregulated in sepsis and have great predictive potential. Therefore, we attempted to build an HLMRG signature to predict the prognosis of patients with sepsis. METHODS Three publicly available transcriptomic profiles of peripheral blood mononuclear cells from patients with sepsis (GSE65682, E-MTAB-4421 and E-MTAB-4451, total n = 850) were included in this study. An HLMRG signature was created by employing Cox regression and least absolute shrinkage and selection operator estimation. The CIBERSORT method was used to analyze the abundances of 22 immune cell subtypes based on transcriptomic data. Metascape was used to investigate pathways related to the HLMRG signature. RESULTS We developed a prognostic signature based on five HLMRGs (ERO1L, SIAH2, TGFA, TGFBI, and THBS1). This classifier successfully discriminated patients with disparate 28-day mortality in the discovery cohort (GSE65682, n = 479), and consistent results were observed in the validation cohort (E-MTAB-4421 plus E-MTAB-4451, n = 371). Estimation of immune infiltration revealed significant associations between the risk score and a subset of immune cells. Enrichment analysis revealed that pathways related to antimicrobial immune responses, leukocyte activation, and cell adhesion and migration were significantly associated with the HLMRG signature. CONCLUSIONS Identification of a prognostic signature suggests the critical role of hypoxia and lactate metabolism in the pathophysiology of sepsis. The HLMRG signature can be used as an efficient tool for the risk stratification of patients with sepsis.
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Affiliation(s)
- Yaojun Peng
- Medical School of Chinese PLA General Hospital, Beijing, China
- Department of Emergency, The First Medical Center, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, China
| | - Qiyan Wu
- Institute of Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Xinhuan Ding
- Medical School of Chinese PLA General Hospital, Beijing, China
- Department of Emergency, The First Medical Center, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, China
| | - Lingxiong Wang
- Institute of Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Hanpu Gong
- Department of Emergency, The First Medical Center, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, China
| | - Cong Feng
- Department of Emergency, The First Medical Center, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, China
| | - Tianyi Liu
- Institute of Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Haiyan Zhu
- Department of Emergency, The First Medical Center, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, China.
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14
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Fang C, Ren P, Bian G, Wang J, Bai J, Huang J, Ding Y, Li X, Li M, Hou Z. Enhancing Spns2/S1P in macrophages alleviates hyperinflammation and prevents immunosuppression in sepsis. EMBO Rep 2023; 24:e56635. [PMID: 37358015 PMCID: PMC10398662 DOI: 10.15252/embr.202256635] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 05/29/2023] [Accepted: 06/13/2023] [Indexed: 06/27/2023] Open
Abstract
Sepsis is a leading cause of in-hospital mortality resulting from a dysregulated response to infection. Novel immunomodulatory therapies targeting macrophage metabolism have emerged as an important focus for current sepsis research. However, understanding the mechanisms underlying macrophage metabolic reprogramming and how they impact immune response requires further investigation. Here, we identify macrophage-expressed Spinster homolog 2 (Spns2), a major transporter of sphingosine-1-phosphate (S1P), as a crucial metabolic mediator that regulates inflammation through the lactate-reactive oxygen species (ROS) axis. Spns2 deficiency in macrophages significantly enhances glycolysis, thereby increasing intracellular lactate production. As a key effector, intracellular lactate promotes pro-inflammatory response by increasing ROS generation. The overactivity of the lactate-ROS axis drives lethal hyperinflammation during the early phase of sepsis. Furthermore, diminished Spns2/S1P signaling impairs the ability of macrophages to sustain an antibacterial response, leading to significant innate immunosuppression in the late stage of infection. Notably, reinforcing Spns2/S1P signaling contributes to balancing the immune response during sepsis, preventing both early hyperinflammation and later immunosuppression, making it a promising therapeutic target for sepsis.
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Affiliation(s)
- Chao Fang
- Department of Pharmacology, School of PharmacyFourth Military Medical UniversityXi'anChina
| | - Pan Ren
- Department of Burns and Plastic Surgery, Tangdu HospitalFourth Military Medical UniversityXi'anChina
| | - Ganlan Bian
- Institute of Medical ResearchNorthwestern Polytechnical UniversityXi'anChina
| | - Jian Wang
- Department of Neurobiology, School of Basic MedicineFourth Military Medical UniversityXi'anChina
| | - Jiaxin Bai
- Department of Pharmacology, School of PharmacyFourth Military Medical UniversityXi'anChina
| | - Jiaxing Huang
- Department of Pharmacology, School of PharmacyFourth Military Medical UniversityXi'anChina
| | - Yixiao Ding
- Department of Pharmacology, School of PharmacyFourth Military Medical UniversityXi'anChina
| | - Xueyong Li
- Department of Burns and Plastic Surgery, Tangdu HospitalFourth Military Medical UniversityXi'anChina
| | - Mingkai Li
- Department of Pharmacology, School of PharmacyFourth Military Medical UniversityXi'anChina
| | - Zheng Hou
- Department of Pharmacology, School of PharmacyFourth Military Medical UniversityXi'anChina
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15
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Wu P, Zhu T, Huang Y, Fang Z, Luo F. Current understanding of the contribution of lactate to the cardiovascular system and its therapeutic relevance. Front Endocrinol (Lausanne) 2023; 14:1205442. [PMID: 37396168 PMCID: PMC10309561 DOI: 10.3389/fendo.2023.1205442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/02/2023] [Indexed: 07/04/2023] Open
Abstract
Research during the past decades has yielded numerous insights into the presence and function of lactate in the body. Lactate is primarily produced via glycolysis and plays special roles in the regulation of tissues and organs, particularly in the cardiovascular system. In addition to being a net consumer of lactate, the heart is also the organ in the body with the greatest lactate consumption. Furthermore, lactate maintains cardiovascular homeostasis through energy supply and signal regulation under physiological conditions. Lactate also affects the occurrence, development, and prognosis of various cardiovascular diseases. We will highlight how lactate regulates the cardiovascular system under physiological and pathological conditions based on evidence from recent studies. We aim to provide a better understanding of the relationship between lactate and cardiovascular health and provide new ideas for preventing and treating cardiovascular diseases. Additionally, we will summarize current developments in treatments targeting lactate metabolism, transport, and signaling, including their role in cardiovascular diseases.
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Affiliation(s)
- Panyun Wu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Research Institute of Blood Lipid and Atherosclerosis, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Tengteng Zhu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yiyuan Huang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhenfei Fang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Research Institute of Blood Lipid and Atherosclerosis, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Fei Luo
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Research Institute of Blood Lipid and Atherosclerosis, the Second Xiangya Hospital, Central South University, Changsha, China
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16
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Semeniuk-Wojtaś A, Poddębniak-Strama K, Modzelewska M, Baryła M, Dziąg-Dudek E, Syryło T, Górnicka B, Jakieła A, Stec R. Tumour microenvironment as a predictive factor for immunotherapy in non-muscle-invasive bladder cancer. Cancer Immunol Immunother 2023:10.1007/s00262-023-03376-9. [PMID: 36928373 DOI: 10.1007/s00262-023-03376-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 01/09/2023] [Indexed: 03/18/2023]
Abstract
Bladder cancer (BC) can be divided into two subgroups depending on invasion of the muscular layer: non-muscle-invasive bladder cancer (NMIBC) and muscle-invasive bladder cancer (MIBC). Its aggressiveness is associated, inter alia, with genetic aberrations like losses of 1p, 6q, 9p, 9q and 13q; gain of 5p; or alterations in the p53 and p16 pathways. Moreover, there are reported metabolic disturbances connected with poor diagnosis-for example, enhanced aerobic glycolysis, gluconeogenesis or haem catabolism.Currently, the primary way of treatment method is transurethral resection of the bladder tumour (TURBT) with adjuvant Bacillus Calmette-Guérin (BCG) therapy for NMIBC or radical cystectomy for MIBC combined with chemotherapy or immunotherapy. However, intravesical BCG immunotherapy and immune checkpoint inhibitors are not efficient in every case, so appropriate biomarkers are needed in order to select the proper treatment options. It seems that the success of immunotherapy depends mainly on the tumour microenvironment (TME), which reflects the molecular disturbances in the tumour. TME consists of specific conditions like hypoxia or local acidosis and different populations of immune cells including tumour-infiltrating lymphocytes, natural killer cells, neutrophils and B lymphocytes, which are responsible for shaping the response against tumour neoantigens and crucial pathways like the PD-L1/PD-1 axis.In this review, we summarise holistically the impact of the immune system, genetic alterations and metabolic changes that are key factors in immunotherapy success. These findings should enable better understanding of the TME complexity in case of NMIBC and causes of failures of current therapies.
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Affiliation(s)
| | | | | | | | | | - Tomasz Syryło
- Department of General, Active and Oncological Urology, Military Institute of Medicine, Warsaw, Poland
| | - Barbara Górnicka
- Pathomorphology Department, Medical University of Warsaw, Warsaw, Poland
| | - Anna Jakieła
- Oncology Department, 4 Military Clinical Hospital with a Polyclinic, Wroclaw, Poland
| | - Rafał Stec
- Oncology Department, Medical University of Warsaw, Warsaw, Poland
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17
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Tajbakhsh A, Gheibihayat SM, Karami N, Savardashtaki A, Butler AE, Rizzo M, Sahebkar A. The regulation of efferocytosis signaling pathways and adipose tissue homeostasis in physiological conditions and obesity: Current understanding and treatment options. Obes Rev 2022; 23:e13487. [PMID: 35765849 DOI: 10.1111/obr.13487] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/02/2022] [Accepted: 06/03/2022] [Indexed: 12/14/2022]
Abstract
Obesity is associated with changes in the resolution of acute inflammation that contribute to the clinical complications. The exact mechanisms underlying unresolved inflammation in obesity are not fully understood. Adipocyte death leads to pro-inflammatory adipose tissue macrophages, stimulating additional adipocyte apoptosis. Thus, a complex and tightly regulated process to inhibit inflammation and maintain homeostasis after adipocyte apoptosis is needed to maintain health. In normal condition, a specialized phagocytic process (efferocytosis) performs this function, clearing necrotic and apoptotic cells (ACs) and controlling inflammation. For efficient and continued efferocytosis, phagocytes must internalize multiple ACs in physiological conditions and handle the excess metabolic burden in adipose tissue. In obesity, this control is lost and can be an important hallmark of the disease. In this regard, the deficiency of efferocytosis leads to delayed resolution of acute inflammation and can result in ongoing inflammation, immune system dysfunction, and insulin resistance in obesity. Hence, efficient clearance of ACs by M2 macrophages could limit long-term inflammation and ensue clinical complications, such as cardiovascular disease and diabetes. This review elaborates upon the molecular mechanisms to identify efferocytosis regulators in obesity, and the mechanisms that can improve efferocytosis and reduce obesity-related complications, such as the use of pharmacological agents and regular exercise.
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Affiliation(s)
- Amir Tajbakhsh
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Mohammad Gheibihayat
- Department of Medical Biotechnology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Neda Karami
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Savardashtaki
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.,Infertility Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alexandra E Butler
- Research Department, Royal College of Surgeons in Ireland Bahrain, Adliya, 15503, Bahrain
| | - Manfredi Rizzo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, School of Medicine, University of Palermo, Palermo, Italy
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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18
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Certo M, Llibre A, Lee W, Mauro C. Understanding lactate sensing and signalling. Trends Endocrinol Metab 2022; 33:722-735. [PMID: 35999109 DOI: 10.1016/j.tem.2022.07.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/14/2022] [Accepted: 07/22/2022] [Indexed: 12/26/2022]
Abstract
Metabolites generated from cellular and tissue metabolism have been rediscovered in recent years as signalling molecules. They may act as cofactor of enzymes or be linked to proteins as post-translational modifiers. They also act as ligands for specific receptors, highlighting that their neglected functions have, in fact, a long standing in evolution. Lactate is one such metabolite that has been considered for long time a waste product of metabolism devoid of any biological function. However, in the past 10 years, lactate has gained much attention in several physio-pathological processes. Mechanisms of sensing and signalling have been discovered and implicated in a broad range of diseases, from cancer to inflammation and fibrosis, providing opportunities for novel therapeutic avenues. Here, we review some of the most recently discovered mechanisms of lactate sensing and signalling.
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Affiliation(s)
- Michelangelo Certo
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Alba Llibre
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | | | - Claudio Mauro
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
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19
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Li X, Yang Y, Zhang B, Lin X, Fu X, An Y, Zou Y, Wang JX, Wang Z, Yu T. Lactate metabolism in human health and disease. Signal Transduct Target Ther 2022; 7:305. [PMID: 36050306 PMCID: PMC9434547 DOI: 10.1038/s41392-022-01151-3] [Citation(s) in RCA: 246] [Impact Index Per Article: 123.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 07/17/2022] [Accepted: 08/09/2022] [Indexed: 12/29/2022] Open
Abstract
The current understanding of lactate extends from its origins as a byproduct of glycolysis to its role in tumor metabolism, as identified by studies on the Warburg effect. The lactate shuttle hypothesis suggests that lactate plays an important role as a bridging signaling molecule that coordinates signaling among different cells, organs and tissues. Lactylation is a posttranslational modification initially reported by Professor Yingming Zhao’s research group in 2019. Subsequent studies confirmed that lactylation is a vital component of lactate function and is involved in tumor proliferation, neural excitation, inflammation and other biological processes. An indispensable substance for various physiological cellular functions, lactate plays a regulatory role in different aspects of energy metabolism and signal transduction. Therefore, a comprehensive review and summary of lactate is presented to clarify the role of lactate in disease and to provide a reference and direction for future research. This review offers a systematic overview of lactate homeostasis and its roles in physiological and pathological processes, as well as a comprehensive overview of the effects of lactylation in various diseases, particularly inflammation and cancer.
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Affiliation(s)
- Xiaolu Li
- Center for Regenerative Medicine, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University; Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China
| | - Yanyan Yang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Bei Zhang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Xiaotong Lin
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao, 266011, China
| | - Xiuxiu Fu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China
| | - Yi An
- Department of Cardiology, The Affiliated Hospital of Qingdao University, No. 1677 Wutaishan Road, Qingdao, 266555, China
| | - Yulin Zou
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China
| | - Jian-Xun Wang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Zhibin Wang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China.
| | - Tao Yu
- Center for Regenerative Medicine, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University; Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, China.
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20
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Yu Y, Ren X, Cao L, Liang Q, Xiao M, Cheng J, Nan S, Zhu C, Kong Q, Fu X, Mou H. Complete‐Genome
Sequence and
in vitro
Probiotic Characteristics Analysis of
Bifidobacterium pseudolongum
YY
‐26. J Appl Microbiol 2022; 133:2599-2617. [DOI: 10.1111/jam.15730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 07/05/2022] [Accepted: 07/18/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Ying Yu
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Xinmiao Ren
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Linyuan Cao
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Qingping Liang
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Mengshi Xiao
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Jiaying Cheng
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Shihao Nan
- State Key Laboratory of Food Science and Technology, China‐Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University
| | - Changliang Zhu
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Qing Kong
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Xiaodan Fu
- State Key Laboratory of Food Science and Technology, China‐Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University
| | - Haijin Mou
- College of Food Science and Engineering Ocean University of China Qingdao China
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21
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Gupta GS. The Lactate and the Lactate Dehydrogenase in Inflammatory Diseases and Major Risk Factors in COVID-19 Patients. Inflammation 2022; 45:2091-2123. [PMID: 35588340 PMCID: PMC9117991 DOI: 10.1007/s10753-022-01680-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 04/04/2022] [Accepted: 05/03/2022] [Indexed: 12/15/2022]
Abstract
Lactate dehydrogenase (LDH) is a terminating enzyme in the metabolic pathway of anaerobic glycolysis with end product of lactate from glucose. The lactate formation is crucial in the metabolism of glucose when oxygen is in inadequate supply. Lactate can also be formed and utilised by different cell types under fully aerobic conditions. Blood LDH is the marker enzyme, which predicts mortality in many conditions such as ARDS, serious COVID-19 and cancer patients. Lactate plays a critical role in normal physiology of humans including an energy source, a signaling molecule and a pH regulator. Depending on the pH, lactate exists as the protonated acidic form (lactic acid) at low pH or as sodium salt (sodium lactate) at basic pH. Lactate can affect the immune system and act as a signaling molecule, which can provide a “danger” signal for life. Several reports provide evidence that the serum lactate represents a chemical marker of severity of disease similar to LDH under inflammatory conditions. Since the mortality rate is much higher among COVID-19 patients, associated with high serum LDH, this article is aimed to review the LDH as a therapeutic target and lactate as potential marker for monitoring treatment response of inflammatory diseases. Finally, the review summarises various LDH inhibitors, which offer potential applications as therapeutic agents for inflammatory diseases, associated with high blood LDH. Both blood LDH and blood lactate are suggested as risk factors for the mortality of patients in serious inflammatory diseases.
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Affiliation(s)
- G S Gupta
- Department of Biophysics, Panjab University, Chandigarh, 160014, India.
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22
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Li H, Yang YG, Sun T. Nanoparticle-Based Drug Delivery Systems for Induction of Tolerance and Treatment of Autoimmune Diseases. Front Bioeng Biotechnol 2022; 10:889291. [PMID: 35464732 PMCID: PMC9019755 DOI: 10.3389/fbioe.2022.889291] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 03/10/2022] [Indexed: 11/13/2022] Open
Abstract
Autoimmune disease is a chronic inflammatory disease caused by disorders of immune regulation. Antigen-specific immunotherapy has the potential to inhibit the autoreactivity of inflammatory T cells and induce antigen-specific immune suppression without impairing normal immune function, offering an ideal strategy for autoimmune disease treatment. Tolerogenic dendritic cells (Tol DCs) with immunoregulatory functions play important roles in inducing immune tolerance. However, the effective generation of tolerogenic DCs in vivo remains a great challenge. The application of nanoparticle-based drug delivery systems in autoimmune disease treatment can increase the efficiency of inducing antigen-specific tolerance in vivo. In this review, we discuss multiple nanoparticles, with a focus on their potential in treatment of autoimmune diseases. We also discuss how the physical properties of nanoparticles influence their therapeutic efficacy.
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Affiliation(s)
- He Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Institute of Immunology, The First Hospital, Jilin University, Changchun, China
- National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
- Department of Rehabilitation Medicine, The First Hospital, Jilin University, Changchun, China
| | - Yong-Guang Yang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Institute of Immunology, The First Hospital, Jilin University, Changchun, China
- National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
- International Center of Future Science, Jilin University, Changchun, China
| | - Tianmeng Sun
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Institute of Immunology, The First Hospital, Jilin University, Changchun, China
- National-local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
- International Center of Future Science, Jilin University, Changchun, China
- *Correspondence: Tianmeng Sun,
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23
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Schenz J, Heilig L, Lohse T, Tichy L, Bomans K, Büttner M, Weigand MA, Uhle F. Extracellular Lactate Acts as a Metabolic Checkpoint and Shapes Monocyte Function Time Dependently. Front Immunol 2021; 12:729209. [PMID: 34899690 PMCID: PMC8652120 DOI: 10.3389/fimmu.2021.729209] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 10/25/2021] [Indexed: 12/26/2022] Open
Abstract
Elevated blood lactate levels are frequently found in critically ill patients and thought to result from tissue hypoperfusion and cellular oxygen shortage. Considering the close relationship between immune cell function and intracellular metabolism, lactate is more than a glycolytic waste molecule but able to regulate the immune response. Our aim was to elucidate the temporal and mechanistic effect of extracellular lactate on monocytes. To this end, primary human monocytes and the human monocytic cell line MonoMac6 were stimulated with various toll-like-receptor agonists after priming with Na-L-lactate under constant pH conditions. As readout, cytokine production was measured, real-time assessment of intracellular energy pathways was performed, and intracellular metabolite concentrations were determined. Irrespective of the immunogenic stimulus, short-term Na-lactate-priming strongly reduced cytokine production capacity. Lactate and hexoses accumulated intracellularly and, together with a decreased glycolytic flux, indicate a lactate-triggered impairment of glycolysis. To counteract intracellular hyperglycemia, glucose is shunted into the branching polyol pathway, leading to sorbitol accumulation. In contrast, long-term priming with Na-L-lactate induced cellular adaption and abolished the suppressive effect. This lactate tolerance is characterized by a decreased cellular respiration due to a reduced complex-I activity. Our results indicate that exogenous lactate shapes monocyte function by altering the intracellular energy metabolism and acts as a metabolic checkpoint of monocyte activation.
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Affiliation(s)
- Judith Schenz
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Lena Heilig
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Tim Lohse
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Lucas Tichy
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Katharina Bomans
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Michael Büttner
- Metabolomics Core Technology Platform (MCTP) at the Centre for Organismal Studies (COS), Heidelberg University, Heidelberg, Germany
| | - Markus A Weigand
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Florian Uhle
- Department of Anesthesiology, Heidelberg University Hospital, Heidelberg, Germany
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24
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Adam C, Paolini L, Gueguen N, Mabilleau G, Preisser L, Blanchard S, Pignon P, Manero F, Le Mao M, Morel A, Reynier P, Beauvillain C, Delneste Y, Procaccio V, Jeannin P. Acetoacetate protects macrophages from lactic acidosis-induced mitochondrial dysfunction by metabolic reprograming. Nat Commun 2021; 12:7115. [PMID: 34880237 PMCID: PMC8655019 DOI: 10.1038/s41467-021-27426-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 11/09/2021] [Indexed: 01/01/2023] Open
Abstract
Lactic acidosis, the extracellular accumulation of lactate and protons, is a consequence of increased glycolysis triggered by insufficient oxygen supply to tissues. Macrophages are able to differentiate from monocytes under such acidotic conditions, and remain active in order to resolve the underlying injury. Here we show that, in lactic acidosis, human monocytes differentiating into macrophages are characterized by depolarized mitochondria, transient reduction of mitochondrial mass due to mitophagy, and a significant decrease in nutrient absorption. These metabolic changes, resembling pseudostarvation, result from the low extracellular pH rather than from the lactosis component, and render these cells dependent on autophagy for survival. Meanwhile, acetoacetate, a natural metabolite produced by the liver, is utilized by monocytes/macrophages as an alternative fuel to mitigate lactic acidosis-induced pseudostarvation, as evidenced by retained mitochondrial integrity and function, retained nutrient uptake, and survival without the need of autophagy. Our results thus show that acetoacetate may increase tissue tolerance to sustained lactic acidosis. Lactic acidosis is a metabolic state that occurs in injured tissues. Here the authors show that macrophages, in order to remain functional in acidosis, reduce their mitochondrial mass by mitophagy and rely on autophagy for survival, with mitochondrial integrity retained using acetoacetate as alternative fuel.
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Affiliation(s)
- Clément Adam
- Univ Angers, Université de Nantes, INSERM, CRCINA, LabEx IGO, SFR ICAT, F-49000, Angers, France
| | - Léa Paolini
- Univ Angers, Université de Nantes, INSERM, CRCINA, LabEx IGO, SFR ICAT, F-49000, Angers, France
| | - Naïg Gueguen
- Univ Angers, CHU d'Angers, INSERM, CNRS, MitoVasc, SFR ICAT, F-49000, Angers, France.,Département de Biochimie et Génétique, CHU d'Angers, Angers, France
| | - Guillaume Mabilleau
- GEROM, Université d'Angers, Angers, France.,Département de Pathologie Cellulaire et Tissulaire, CHU d'Angers, Angers, France
| | - Laurence Preisser
- Univ Angers, Université de Nantes, INSERM, CRCINA, LabEx IGO, SFR ICAT, F-49000, Angers, France
| | - Simon Blanchard
- Univ Angers, Université de Nantes, INSERM, CRCINA, LabEx IGO, SFR ICAT, F-49000, Angers, France.,Laboratoire d'Immunologie et Allergologie, CHU d'Angers, Angers, France
| | - Pascale Pignon
- Univ Angers, Université de Nantes, INSERM, CRCINA, LabEx IGO, SFR ICAT, F-49000, Angers, France
| | | | - Morgane Le Mao
- Univ Angers, CHU d'Angers, INSERM, CNRS, MitoVasc, SFR ICAT, F-49000, Angers, France
| | - Alain Morel
- Univ Angers, Université de Nantes, INSERM, CRCINA, LabEx IGO, SFR ICAT, F-49000, Angers, France.,Institut de Cancérologie de l'Ouest, F-49000, Angers, France
| | - Pascal Reynier
- Laboratoire de Biochimie et biologie moléculaire, CHU d'Angers, Angers, France
| | - Céline Beauvillain
- Univ Angers, Université de Nantes, INSERM, CRCINA, LabEx IGO, SFR ICAT, F-49000, Angers, France.,Laboratoire d'Immunologie et Allergologie, CHU d'Angers, Angers, France
| | - Yves Delneste
- Univ Angers, Université de Nantes, INSERM, CRCINA, LabEx IGO, SFR ICAT, F-49000, Angers, France.,Laboratoire d'Immunologie et Allergologie, CHU d'Angers, Angers, France
| | - Vincent Procaccio
- Univ Angers, CHU d'Angers, INSERM, CNRS, MitoVasc, SFR ICAT, F-49000, Angers, France.,Département de Biochimie et Génétique, CHU d'Angers, Angers, France
| | - Pascale Jeannin
- Univ Angers, Université de Nantes, INSERM, CRCINA, LabEx IGO, SFR ICAT, F-49000, Angers, France. .,Laboratoire d'Immunologie et Allergologie, CHU d'Angers, Angers, France.
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25
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Chen Q, Wang S, Guo J, Xie Q, Evivie SE, Song Y, Li B, Huo G. The Protective Effects of Lactobacillus plantarum KLDS 1.0344 on LPS-Induced Mastitis In Vitro and In Vivo. Front Immunol 2021; 12:770822. [PMID: 34858427 PMCID: PMC8630701 DOI: 10.3389/fimmu.2021.770822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 10/21/2021] [Indexed: 12/02/2022] Open
Abstract
Cow mastitis, which significantly lowers milk quality, is mainly caused by pathogenic bacteria such as E. coli. Previous studies have suggested that lactic acid bacteria can have antagonistic effects on pathogenic bacteria that cause mastitis. In the current study, we evaluated the in vitro and in vivo alleviative effects of L. plantarum KLDS 1.0344 in mastitis treatment. In vitro antibacterial experiments were performed using bovine mammary epithelial cell (bMEC), followed by in vivo studies involving mastitis mouse models. In vitro results indicate that lactic acid was the primary substance inhibiting the E. coli pathogen. Meanwhile, treatment with L. plantarum KLDS 1.0344 can reduce cytokines' mRNA expression levels in the inflammatory response of bMEC induced by LPS. In vivo, the use of this strain reduced the secretion of inflammatory factors IL-6, IL-1β, and TNF-α, and decreased the activity of myeloperoxidase (MPO), and inhibited the secretion of p-p65 and p-IκBα. These results indicate that L. plantarum KLDS 1.0344 pretreatment can reduce the expression of inflammatory factors by inhibiting the activation of NF-κB signaling pathway, thus exerting prevent the occurrence of inflammation in vivo. Our findings show that L. plantarum KLDS 1.0344 has excellent properties as an alternative to antibiotics and can be developed into lactic acid bacteria preparation to prevent mastitis disease.
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Affiliation(s)
- Qingxue Chen
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
| | - Song Wang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
| | - Jiayao Guo
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
| | - Qinggang Xie
- Heilongjiang Feihe Dairy Company Ltd., Qiqihaer, China
| | - Smith Etareri Evivie
- Department of Animal Science, Faculty of Agriculture, University of Benin, Benin City, Nigeria
- Department of Food Science and Human Nutrition, Faculty of Agriculture, University of Benin, Benin City, Nigeria
| | - Yue Song
- Food College, Northeast Agricultural University, Harbin, China
| | - Bailiang Li
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
| | - Guicheng Huo
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, China
- Food College, Northeast Agricultural University, Harbin, China
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26
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Caslin HL, Abebayehu D, Pinette JA, Ryan JJ. Lactate Is a Metabolic Mediator That Shapes Immune Cell Fate and Function. Front Physiol 2021; 12:688485. [PMID: 34733170 PMCID: PMC8558259 DOI: 10.3389/fphys.2021.688485] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 09/22/2021] [Indexed: 12/12/2022] Open
Abstract
Lactate and the associated H+ ions are still introduced in many biochemistry and general biology textbooks and courses as a metabolic by-product within fast or oxygen-independent glycolysis. However, the role of lactate as a fuel source has been well-appreciated in the field of physiology, and the role of lactate as a metabolic feedback regulator and distinct signaling molecule is beginning to gain traction in the field of immunology. We now know that while lactate and the associated H+ ions are generally immunosuppressive negative regulators, there are cell, receptor, mediator, and microenvironment-specific effects that augment T helper (Th)17, macrophage (M)2, tumor-associated macrophage, and neutrophil functions. Moreover, we are beginning to uncover how lactate and H+ utilize different transporters and signaling cascades in various immune cell types. These immunomodulatory effects may have a substantial impact in cancer, sepsis, autoimmunity, wound healing, and other immunomodulatory conditions with elevated lactate levels. In this article, we summarize the known effects of lactate and H+ on immune cells to hypothesize potential explanations for the divergent inflammatory vs. anti-inflammatory effects.
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Affiliation(s)
- Heather L Caslin
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, United States.,Department of Biology, Virginia Commonwealth University, Richmond, VA, United States
| | - Daniel Abebayehu
- Department of Biology, Virginia Commonwealth University, Richmond, VA, United States.,Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, United States
| | - Julia A Pinette
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, United States
| | - John J Ryan
- Department of Biology, Virginia Commonwealth University, Richmond, VA, United States
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27
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Lantz C, Becker A, Thorp EB. Can polarization of macrophage metabolism enhance cardiac regeneration? J Mol Cell Cardiol 2021; 160:87-96. [PMID: 34293342 PMCID: PMC8571050 DOI: 10.1016/j.yjmcc.2021.07.003] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/12/2021] [Accepted: 07/15/2021] [Indexed: 12/24/2022]
Abstract
While largely appreciated for their antimicrobial and repair functions, macrophages have emerged as indispensable for the development, homeostasis, and regeneration of tissue, including regeneration of the neonatal heart. Upon activation, mammalian neonatal macrophages express and secrete factors that coordinate angiogenesis, resolution of inflammation, and ultimately cardiomyocyte proliferation. This is contrary to adult macrophages in the adult heart, which are incapable of inducing significant levels of cardiac regeneration. The underlying mechanisms by which pro-regenerative macrophages are activated and regulated remain vague. A timely hypothesis is that macrophage metabolism contributes to this proliferative and regenerative potential. This is because we now appreciate the significant contributions of metabolites to immune cell programming and function, beyond solely bioenergetics. After birth, the metabolic milieu of the neonate is subject to significant alterations in oxygenation and nutrient supply, which will affect how metabolic substrates are catabolized. In this context, we discuss potential roles for select macrophage metabolic pathways during cardiac regeneration.
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Affiliation(s)
- Connor Lantz
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Amanda Becker
- Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; The Division of Critical Care Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Edward B Thorp
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; The Heart Center, Stanley Manne Children's Research Institute, Chicago, IL, USA.
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28
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Ó Maoldomhnaigh C, Cox DJ, Phelan JJ, Mitermite M, Murphy DM, Leisching G, Thong L, O'Leary SM, Gogan KM, McQuaid K, Coleman AM, Gordon SV, Basdeo SA, Keane J. Lactate Alters Metabolism in Human Macrophages and Improves Their Ability to Kill Mycobacterium tuberculosis. Front Immunol 2021; 12:663695. [PMID: 34691015 PMCID: PMC8526932 DOI: 10.3389/fimmu.2021.663695] [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: 02/03/2021] [Accepted: 09/16/2021] [Indexed: 11/13/2022] Open
Abstract
In order to mount an appropriate immune response to infection, the macrophage must alter its metabolism by increasing aerobic glycolysis and concomitantly decreasing oxidative phosphorylation; a process known as the Warburg effect. Consequently, lactate, the end-product of glycolysis, accumulates in the extracellular environment. The subsequent effect of lactate on surrounding macrophages is poorly understood. Mycobacterium tuberculosis (Mtb), the causative organism of Tuberculosis (TB), is phagocytosed by macrophages in the airways. Mtb infected macrophages upregulate aerobic glycolysis and effector functions to try to kill the bacteria. Our lab has previously shown that human macrophages produce lactate in response to infection with Mtb. Although lactate has largely been considered a waste product of aerobic glycolysis, we hypothesised that the presence of extracellular lactate would impact subsequent immunometabolic responses and modulate macrophage function. We demonstrate that the presence of exogenous lactate has an immediate effect on the cellular metabolism of resting human macrophages; causing a decrease in extracellular acidification rate (ECAR; analogous to the rate of glycolysis) and an increase in the oxygen consumption rate (OCR; analogous to oxidative phosphorylation). When lactate-treated macrophages were stimulated with Mtb or LPS, glycolysis proceeds to increase immediately upon stimulation but oxidative phosphorylation remains stable compared with untreated cells that display a decrease in OCR. This resulted in a significantly reduced ECAR/OCR ratio early in response to stimulation. Since altered metabolism is intrinsically linked to macrophage function, we examined the effect of lactate on macrophage cytokine production and ability to kill Mtb. Lactate significantly reduced the concentrations of TNF and IL-1β produced by human macrophages in response to Mtb but did not alter IL-10 and IL-6 production. In addition, lactate significantly improved bacillary clearance in human macrophages infected with Mtb, through a mechanism that is, at least in part, mediated by promoting autophagy. These data indicate that lactate, the product of glycolysis, has a negative feedback effect on macrophages resulting in an attenuated glycolytic shift upon subsequent stimulation and reduced pro-inflammatory cytokine production. Interestingly, this pro-resolution effect of lactate is associated with increased capacity to kill Mtb.
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Affiliation(s)
- Cilian Ó Maoldomhnaigh
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Donal J Cox
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - James J Phelan
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Morgane Mitermite
- School of Veterinary Medicine and Conway Institute, University College Dublin, Dublin, Ireland
| | - Dearbhla M Murphy
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Gina Leisching
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Lorraine Thong
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Seónadh M O'Leary
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Karl M Gogan
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Kate McQuaid
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Amy M Coleman
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Stephen V Gordon
- School of Veterinary Medicine and Conway Institute, University College Dublin, Dublin, Ireland
| | - Sharee A Basdeo
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Joseph Keane
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, St James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
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29
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Stuelten CH, Zhang YE. Transforming Growth Factor-β: An Agent of Change in the Tumor Microenvironment. Front Cell Dev Biol 2021; 9:764727. [PMID: 34712672 PMCID: PMC8545984 DOI: 10.3389/fcell.2021.764727] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 09/23/2021] [Indexed: 12/12/2022] Open
Abstract
Transforming Growth Factor-β (TGF-β) is a key regulator of embryonic development, adult tissue homeostasis, and lesion repair. In tumors, TGF-β is a potent inhibitor of early stage tumorigenesis and promotes late stage tumor progression and metastasis. Here, we review the roles of TGF-β as well as components of its signaling pathways in tumorigenesis. We will discuss how a core property of TGF-β, namely its ability to change cell differentiation, leads to the transition of epithelial cells, endothelial cells and fibroblasts to a myofibroblastoid phenotype, changes differentiation and polarization of immune cells, and induces metabolic reprogramming of cells, all of which contribute to the progression of epithelial tumors.
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Affiliation(s)
- Christina H. Stuelten
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Ying E. Zhang
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
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30
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Luo Y, Li L, Chen X, Gou H, Yan K, Xu Y. Effects of lactate in immunosuppression and inflammation: Progress and prospects. Int Rev Immunol 2021; 41:19-29. [PMID: 34486916 DOI: 10.1080/08830185.2021.1974856] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Lactate used to be considered as a waste product of glucose metabolism. However, accumulating evidence has revealed its crucial role in regulating various biological and pathological processes. Hypoxia, inflammation, viral infection, and tumor promote the production of lactate. Then lactate activates G protein-coupled receptor 81 (GPR81) or shuttles across membranes by monocarboxylate-transporters (MCTs) to execute its intricate effects. Many studies highlighted the function of lactate in regulating dendritic cells, monocytes, natural killer cells, mast cells, T cells, tumor cells, fibroblasts, macrophages polarization, and the differentiation of Th1, Th17, MDSCs, Tregs; all of which play a role in maintaining the immune homeostasis of the host when challenged with the noxious stimuli. In this review, we summarized the influence of lactate in diverse tissue-specific cells, and discuss their effects on viral infection, acute inflammation, chronic inflammation, sepsis, and tumor immunosuppression. The goal of this review is to expose that lactate has a double-edged effect on host immunity and accompanying inflammatory reactions, which could be a potentially effective target for treating the tumor and multiple infectious diseases.
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Affiliation(s)
- Ying Luo
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Lu Li
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Xu Chen
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Huiqing Gou
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Ke Yan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Yan Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
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31
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Adipose Tissue Immunometabolism and Apoptotic Cell Clearance. Cells 2021; 10:cells10092288. [PMID: 34571937 PMCID: PMC8470283 DOI: 10.3390/cells10092288] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 08/26/2021] [Accepted: 08/30/2021] [Indexed: 12/19/2022] Open
Abstract
The safe removal of apoptotic debris by macrophages—often referred to as efferocytosis—is crucial for maintaining tissue integrity and preventing self-immunity or tissue damaging inflammation. Macrophages clear tissues of hazardous materials from dying cells and ultimately adopt a pro-resolving activation state. However, adipocyte apoptosis is an inflammation-generating process, and the removal of apoptotic adipocytes by so-called adipose tissue macrophages triggers a sequence of events that lead to meta-inflammation and obesity-associated metabolic diseases. Signals that allow apoptotic cells to control macrophage immune functions are complex and involve metabolites released by the apoptotic cells and also metabolites produced by the macrophages during the digestion of apoptotic cell contents. This review provides a concise summary of the adipocyte-derived metabolites that potentially control adipose tissue macrophage immune functions and, hence, may induce or alleviate adipose tissue inflammation.
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32
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Chen L, Huang Q, Zhao T, Sui L, Wang S, Xiao Z, Nan Y, Ai K. Nanotherapies for sepsis by regulating inflammatory signals and reactive oxygen and nitrogen species: New insight for treating COVID-19. Redox Biol 2021; 45:102046. [PMID: 34174559 PMCID: PMC8205260 DOI: 10.1016/j.redox.2021.102046] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/06/2021] [Accepted: 06/11/2021] [Indexed: 12/12/2022] Open
Abstract
SARS-CoV-2 has caused up to 127 million cases of COVID-19. Approximately 5% of COVID-19 patients develop severe illness, and approximately 40% of those with severe illness eventually die, corresponding to more than 2.78 million people. The pathological characteristics of COVID-19 resemble typical sepsis, and severe COVID-19 has been identified as viral sepsis. Progress in sepsis research is important for improving the clinical care of these patients. Recent advances in understanding the pathogenesis of sepsis have led to the view that an uncontrolled inflammatory response and oxidative stress are core factors. However, in the traditional treatment of sepsis, it is difficult to achieve a balance between the inflammation, pathogens (viruses, bacteria, and fungi), and patient tolerance, resulting in high mortality of patients with sepsis. In recent years, nanomaterials mediating reactive oxygen and nitrogen species (RONS) and the inflammatory response have shown previously unattainable therapeutic effects on sepsis. Despite these advantages, RONS and inflammatory response-based nanomaterials have yet to be extensively adopted as sepsis therapy. To the best of our knowledge, no review has yet discussed the pathogenesis of sepsis and the application of nanomaterials. To help bridge this gap, we discuss the pathogenesis of sepsis related to inflammation and the overproduction RONS, which activate pathogen-associated molecular pattern (PAMP)-pattern recognition receptor (PRR) and damage-associated molecular pattern (DAMP)-PRR signaling pathways. We also summarize the application of nanomaterials in the treatment of sepsis. As highlighted here, this strategy could synergistically improve the therapeutic efficacy against both RONS and inflammation in sepsis and may prolong survival. Current challenges and future developments for sepsis treatment are also summarized.
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Affiliation(s)
- Li Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China; Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China
| | - Qiong Huang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410087, Hunan, China
| | - Tianjiao Zhao
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410087, Hunan, China
| | - Lihua Sui
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China; Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China
| | - Shuya Wang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China; Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China
| | - Zuoxiu Xiao
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China; Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China
| | - Yayun Nan
- Geriatric Medical Center, Ningxia People's Hospital, Yinchuan, China
| | - Kelong Ai
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China; Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China.
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Natoli G, Pileri F, Gualdrini F, Ghisletti S. Integration of transcriptional and metabolic control in macrophage activation. EMBO Rep 2021; 22:e53251. [PMID: 34328708 DOI: 10.15252/embr.202153251] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 11/09/2022] Open
Abstract
Macrophages react to microbial and endogenous danger signals by activating a broad panel of effector and homeostatic responses. Such responses entail rapid and stimulus-specific changes in gene expression programs accompanied by extensive rewiring of metabolism, with alterations in chromatin modifications providing one layer of integration of transcriptional and metabolic regulation. A systematic and mechanistic understanding of the mutual influences between signal-induced metabolic changes and gene expression is still lacking. Here, we discuss current evidence, controversies, knowledge gaps, and future areas of investigation on how metabolic and transcriptional changes are dynamically integrated during macrophage activation. The cross-talk between metabolism and inflammatory gene expression is in part accounted for by alterations in the production, usage, and availability of metabolic intermediates that impact the macrophage epigenome. In addition, stimulus-inducible gene expression changes alter the production of inflammatory mediators, such as nitric oxide, that in turn modulate the activity of metabolic enzymes thus determining complex regulatory loops. Critical issues remain to be understood, notably whether and how metabolic rewiring can bring about gene-specific (as opposed to global) expression changes.
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Affiliation(s)
- Gioacchino Natoli
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan, Italy.,Humanitas University, Milan, Italy
| | - Francesco Pileri
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan, Italy
| | - Francesco Gualdrini
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan, Italy
| | - Serena Ghisletti
- Department of Experimental Oncology, European Institute of Oncology (IEO) IRCCS, Milan, Italy
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Zhou HC, Xin-Yan Yan, Yu WW, Liang XQ, Du XY, Liu ZC, Long JP, Zhao GH, Liu HB. Lactic acid in macrophage polarization: The significant role in inflammation and cancer. Int Rev Immunol 2021; 41:4-18. [PMID: 34304685 DOI: 10.1080/08830185.2021.1955876] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Metabolite lactic acid has always been regarded as a metabolic by-product rather than a bioactive molecule. Recently, this view has changed since it was discovered that lactic acid can be used as a signal molecule and has novel signal transduction functions both intracellular and extracellular, which can regulate key functions in the immune system. In recent years, more and more evidence has shown that lactic acid is closely related to the metabolism and polarization of macrophages. During inflammation, lactic acid is a regulator of macrophage metabolism, and it can prevent excessive inflammatory responses; In malignant tumors, lactic acid produced by tumor tissues promotes the polarization of tumor-associated macrophages, which in turn promotes tumor progression. In this review, we examined the relationship between lactic acid and macrophage metabolism. We further discussed how lactic acid plays a role in maintaining the homeostasis of macrophages, as well as the biology of macrophage polarization and the M1/M2 imbalance in human diseases. Potential methods to target lactic acid in the treatment of inflammation and cancer will also be discussed so as to provide new strategies for the treatment of diseases.
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Affiliation(s)
- Hai-Cun Zhou
- Department of Breast Surgery, Gansu Maternal and Child Health Care Hospital, Lanzhou, Gansu Province, P. R. China.,Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, P.R. China.,The Second Clinical Medical College, Lanzhou University, Lanzhou, P.R.China
| | - Xin-Yan Yan
- Department of Breast Surgery, Gansu Maternal and Child Health Care Hospital, Lanzhou, Gansu Province, P. R. China
| | - Wen-Wen Yu
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, P.R. China.,The Second Clinical Medical College, Lanzhou University, Lanzhou, P.R.China
| | - Xiao-Qin Liang
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, P.R. China.,The Second Clinical Medical College, Lanzhou University, Lanzhou, P.R.China
| | - Xiao-Yan Du
- Department of Breast Surgery, Gansu Maternal and Child Health Care Hospital, Lanzhou, Gansu Province, P. R. China
| | - Zhi-Chang Liu
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, P.R. China.,The Second Clinical Medical College, Lanzhou University, Lanzhou, P.R.China
| | - Jian-Ping Long
- Department of Breast Surgery, Gansu Maternal and Child Health Care Hospital, Lanzhou, Gansu Province, P. R. China
| | - Guang-Hui Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, P. R. China
| | - Hong-Bin Liu
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, P.R. China.,The Second Clinical Medical College, Lanzhou University, Lanzhou, P.R.China
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Winn NC, Cottam MA, Wasserman DH, Hasty AH. Exercise and Adipose Tissue Immunity: Outrunning Inflammation. Obesity (Silver Spring) 2021; 29:790-801. [PMID: 33899336 DOI: 10.1002/oby.23147] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/02/2021] [Accepted: 01/26/2021] [Indexed: 02/06/2023]
Abstract
Chronic inflammation is considered a precipitating factor and possibly an underlying cause of many noncommunicable diseases, including cardiovascular disease, metabolic diseases, and some cancers. Obesity, which manifests in more than 650 million people worldwide, is the most common chronic inflammatory condition, with visceral adiposity thought to be the major inflammatory hub that links obesity and chronic disease. Adipose tissue (AT) inflammation is triggered or heightened in large part by (1) accelerated immune cell recruitment, (2) reshaping of the AT stromal-immuno landscape (e.g., immune cells, endothelial cells, fibroblasts, adipocyte progenitors), and (3) perturbed AT immune cell function. Exercise, along with diet management, is a cornerstone in promoting weight loss and preventing weight regain. This review focuses on evidence that increased physical activity reduces AT inflammation caused by hypercaloric diets or genetic obesity. The precise cell types and mechanisms responsible for the therapeutic effects of exercise on AT inflammation remain poorly understood. This review summarizes what is known about obesity-induced AT inflammation and immunomodulation and highlights mechanisms by which aerobic exercise combats inflammation by remodeling the AT immune landscape. Furthermore, key areas are highlighted that require future exploration and novel discoveries into the burgeoning field of how the biology of exercise affects AT immunity.
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Affiliation(s)
- Nathan C Winn
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA
| | - Matthew A Cottam
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA
| | - David H Wasserman
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA
- Vanderbilt Mouse Metabolic Phenotyping Center, Nashville, Tennessee, USA
| | - Alyssa H Hasty
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA
- VA Tennessee Valley Healthcare System, Nashville, Tennessee, USA
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Kiran D, Basaraba RJ. Lactate Metabolism and Signaling in Tuberculosis and Cancer: A Comparative Review. Front Cell Infect Microbiol 2021; 11:624607. [PMID: 33718271 PMCID: PMC7952876 DOI: 10.3389/fcimb.2021.624607] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 01/13/2021] [Indexed: 12/16/2022] Open
Abstract
Infection with Mycobacterium tuberculosis (Mtb) leading to tuberculosis (TB) disease continues to be a major global health challenge. Critical barriers, including but not limited to the development of multi-drug resistance, lack of diagnostic assays that detect patients with latent TB, an effective vaccine that prevents Mtb infection, and infectious and non-infectious comorbidities that complicate active TB, continue to hinder progress toward a TB cure. To complement the ongoing development of new antimicrobial drugs, investigators in the field are exploring the value of host-directed therapies (HDTs). This therapeutic strategy targets the host, rather than Mtb, and is intended to augment host responses to infection such that the host is better equipped to prevent or clear infection and resolve chronic inflammation. Metabolic pathways of immune cells have been identified as promising HDT targets as more metabolites and metabolic pathways have shown to play a role in TB pathogenesis and disease progression. Specifically, this review highlights the potential role of lactate as both an immunomodulatory metabolite and a potentially important signaling molecule during the host response to Mtb infection. While long thought to be an inert end product of primarily glucose metabolism, the cancer research field has discovered the importance of lactate in carcinogenesis and resistance to chemotherapeutic drug treatment. Herein, we discuss similarities between the TB granuloma and tumor microenvironments in the context of lactate metabolism and identify key metabolic and signaling pathways that have been shown to play a role in tumor progression but have yet to be explored within the context of TB. Ultimately, lactate metabolism and signaling could be viable HDT targets for TB; however, critical additional research is needed to better understand the role of lactate at the host-pathogen interface during Mtb infection before adopting this HDT strategy.
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Affiliation(s)
| | - Randall J. Basaraba
- Metabolism of Infectious Diseases Laboratory, Mycobacteria Research Laboratories, Department of Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
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Qian J, Gong ZC, Zhang YN, Wu HH, Zhao J, Wang LT, Ye LJ, Liu D, Wang W, Kang X, Sheng J, Xu W, Liu XL, Wu J, Zheng W. Lactic acid promotes metastatic niche formation in bone metastasis of colorectal cancer. Cell Commun Signal 2021; 19:9. [PMID: 33478523 PMCID: PMC7818572 DOI: 10.1186/s12964-020-00667-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 09/22/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND To investigate the effect of lactic acid (LA) on the progression of bone metastasis from colorectal cancer (CRC) and its regulatory effects on primary CD115 (+) osteoclast (OC) precursors. METHODS The BrdU assay, Annexin-V/PI assay, TRAP staining and immunofluorescence were performed to explore the effect of LA on the proliferation, apoptosis and differentiation of OC precursors in vitro and in vivo. Flow cytometry was performed to sort primary osteoclast precursors and CD4(+) T cells and to analyze the change in the expression of target proteins in osteoclast precursors. A recruitment assay was used to test how LA and Cadhein-11 regulate the recruitment of OC precursors. RT-PCR and Western blotting were performed to analyze the changes in the mRNA and protein expression of genes related to the PI3K-AKT pathway and profibrotic genes. Safranin O-fast green staining, H&E staining and TRAP staining were performed to analyze the severity of bone resorption and accumulation of osteoclasts. RESULTS LA promoted the expression of CXCL10 and Cadherin-11 in CD115(+) precursors through the PI3K-AKT pathway. We found that CXCL10 and Cadherin-11 were regulated by the activation of CREB and mTOR, respectively. LA-induced overexpression of CXCL10 in CD115(+) precursors indirectly promoted the differentiation of osteoclast precursors through the recruitment of CD4(+) T cells, and the crosstalk between these two cells promoted bone resorption in bone metastasis from CRC. On the other hand, Cadherin-11 mediated the adhesion between osteoclast precursors and upregulated the production of specific collagens, especially Collagen 5, which facilitated fibrotic changes in the tumor microenvironment. Blockade of the PI3K-AKT pathway efficiently prevented the progression of bone metastasis caused by lactate. CONCLUSION LA promoted metastatic niche formation in the tumor microenvironment through the PI3K-AKT pathway. Our study provides new insight into the role of LA in the progression of bone metastasis from CRC. Video Abstract.
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Affiliation(s)
- Jin Qian
- College of Medicine, Southwest Jiaotong University, North Section 1 No.111, Second Ring Road, Chengdu, 610000 People’s Republic of China
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Zi-chen Gong
- College of Medicine, Southwest Jiaotong University, North Section 1 No.111, Second Ring Road, Chengdu, 610000 People’s Republic of China
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Yi-na Zhang
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Hong-hua Wu
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Jing Zhao
- Biomedical Analysis Center, Army Medical University, Chongqing, 400038 People’s Republic of China
| | - Li-ting Wang
- Biomedical Analysis Center, Army Medical University, Chongqing, 400038 People’s Republic of China
| | - Li-juan Ye
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Da Liu
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Wei Wang
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Xia Kang
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Jun Sheng
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Wei Xu
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Xi-lin Liu
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Juan Wu
- Department of Pharmacy, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Wei Zheng
- College of Medicine, Southwest Jiaotong University, North Section 1 No.111, Second Ring Road, Chengdu, 610000 People’s Republic of China
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
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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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Wang L, Ruan M, Lei B, Yan H, Sun X, Chang C, Liu L, Xie W. The potential of 18F-FDG PET/CT in predicting PDL1 expression status in pulmonary lesions of untreated stage IIIB-IV non-small-cell lung cancer. Lung Cancer 2020; 150:44-52. [PMID: 33065462 DOI: 10.1016/j.lungcan.2020.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 09/20/2020] [Accepted: 10/05/2020] [Indexed: 12/25/2022]
Abstract
OBJECTIVES To investigate the potential of 2-deoxy-2(18F)fluoro-d-glucose (18F-FDG) combined positron emission tomography and computed tomography (PET/CT) in predicting programmed cell death ligand-1 (PDL1) expression status in pulmonary lesions of advanced non-small-cell lung cancer (NSCLC). MATERIALS AND METHODS This retrospective study includes 133 untreated stage IIIB-IV NSCLC patients who underwent pulmonary lesion biopsy for PDL1 immunochemistry 1-4 weeks after 18F-FDG PET/CT scanning, randomly assigned to cohorts for modelling and validation of PDL1 expression predictors. Mean and maximum standard uptake values (pSUVmean and pSUVmax), metabolic tumour volume (pMTV), and total lesion glycolysis (pTLG) of primary lesions were determined. PDL1 expression in pulmonary lesions (pPDL1) was determined using tumour proportion score (TPS), and pPDL1 TPS < 1%, 1-49 %, and ≥ 50 % were considered as pPDL1-negative, pPDL1-moderate, and pPDL1-strong, respectively. RESULTS pSUVmean and pSUVmax values were increased with the increase of pPDL1 levels, whereas pMTV and pTLG values were not associated with pPDL1 levels. In the modelling cohort, we found that pSUVmax rather than pSUVmean was an independent predictor for pPDL1-negative, pPDL1-moderate, and pPDL1-strong, whereas pSUVmax < 14.4, 14.4-17.5, and > 17.5 were suggested as predictors for pPDL1-negative, pPDL1-moderate, and pPDL1-strong, respectively (odds ratio: 4.82, 3.92, and 4.45, respectively; P = 0.002, 0.021, and 0.020, respectively). In the validation cohort, pSUVmax < 14.4, 14.4-17.5, and > 17.5 showed significantly high probabilities of being pPDL1-negative, pPDL1-moderate, and pPDL1-strong, respectively (P = 0.006). The accuracies of pSUVmax < 14.4, 14.4-17.5, and > 17.5 predicting pPDL1-negative, pPDL1-moderate, and pPDL1-strong, respectively, in validation cohort, were 66.7 %, 75.8 %, and 84.8 %, respectively. CONCLUSION pSUVmax on 18F-FDG PET/CT is a potential biomarker for pPDL1 TPS < 1%, 1-49 %, and ≥ 50 % in untreated stage IIIB-IV NSCLC, and therefore may be helpful for determining immunotherapeutic strategy for advanced NSCLC.
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Affiliation(s)
- Lihua Wang
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Road, Shanghai 200030, China; Clinical and Translational Center in Shanghai Chest Hospital, Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 241 Huaihai West Road, Shanghai 200030, China; Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China
| | - Maomei Ruan
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Road, Shanghai 200030, China; Clinical and Translational Center in Shanghai Chest Hospital, Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 241 Huaihai West Road, Shanghai 200030, China
| | - Bei Lei
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Road, Shanghai 200030, China; Clinical and Translational Center in Shanghai Chest Hospital, Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 241 Huaihai West Road, Shanghai 200030, China
| | - Hui Yan
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Road, Shanghai 200030, China; Clinical and Translational Center in Shanghai Chest Hospital, Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 241 Huaihai West Road, Shanghai 200030, China
| | - Xiaoyan Sun
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Road, Shanghai 200030, China; Clinical and Translational Center in Shanghai Chest Hospital, Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 241 Huaihai West Road, Shanghai 200030, China
| | - Cheng Chang
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Road, Shanghai 200030, China; Clinical and Translational Center in Shanghai Chest Hospital, Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 241 Huaihai West Road, Shanghai 200030, China
| | - Liu Liu
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Road, Shanghai 200030, China; Clinical and Translational Center in Shanghai Chest Hospital, Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 241 Huaihai West Road, Shanghai 200030, China; Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China.
| | - Wenhui Xie
- Department of Nuclear Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 Huaihai West Road, Shanghai 200030, China; Clinical and Translational Center in Shanghai Chest Hospital, Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 241 Huaihai West Road, Shanghai 200030, China; Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China.
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Yang K, Xu J, Fan M, Tu F, Wang X, Ha T, Williams DL, Li C. Lactate Suppresses Macrophage Pro-Inflammatory Response to LPS Stimulation by Inhibition of YAP and NF-κB Activation via GPR81-Mediated Signaling. Front Immunol 2020; 11:587913. [PMID: 33123172 PMCID: PMC7573489 DOI: 10.3389/fimmu.2020.587913] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/17/2020] [Indexed: 12/16/2022] Open
Abstract
Recent evidence from cancer research indicates that lactate exerts a suppressive effect on innate immune responses in cancer. This study investigated the mechanisms by which lactate suppresses macrophage pro-inflammatory responses. Macrophages [Raw 264.7 and bone marrow derived macrophages (BMDMs)] were treated with LPS in the presence or absence of lactate. Pro-inflammatory cytokines, NF-κB and YAP activation and nuclear translocation were examined. Our results show that lactate significantly attenuates LPS stimulated macrophage TNF-α and IL-6 production. Lactate also suppresses LPS stimulated macrophage NF-κB and YAP activation and nuclear translocation in macrophages. Interestingly, YAP activation and nuclear translocation are required for LPS stimulated macrophage NF-κB activation and TNFα production. Importantly, lactate suppressed YAP activation and nuclear translocation is mediated by GPR81 dependent AMKP and LATS activation which phosphorylates YAP, resulting in YAP inactivation. Finally, we demonstrated that LPS stimulation induces an interaction between YAP and NF-κB subunit p65, while lactate decreases the interaction of YAP and NF-κB, thus suppressing LPS induced pro-inflammatory cytokine production. Our study demonstrates that lactate exerts a previously unknown role in the suppression of macrophage pro-inflammatory cytokine production via GPR81 mediated YAP inactivation, resulting in disruption of YAP and NF-κB interaction and nuclear translocation in macrophages.
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Affiliation(s)
- Kun Yang
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Jingjing Xu
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Min Fan
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Fei Tu
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Xiaohui Wang
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Tuanzhu Ha
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - David L. Williams
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Chuanfu Li
- Department of Surgery, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence for Inflammation, Infectious Disease and Immunity, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
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Soto‐Heredero G, Gómez de las Heras MM, Gabandé‐Rodríguez E, Oller J, Mittelbrunn M. Glycolysis - a key player in the inflammatory response. FEBS J 2020; 287:3350-3369. [PMID: 32255251 PMCID: PMC7496292 DOI: 10.1111/febs.15327] [Citation(s) in RCA: 249] [Impact Index Per Article: 62.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/06/2020] [Accepted: 04/02/2020] [Indexed: 12/13/2022]
Abstract
The inflammatory response involves the activation of several cell types to fight insults caused by a plethora of agents, and to maintain the tissue homoeostasis. On the one hand, cells involved in the pro-inflammatory response, such as inflammatory M1 macrophages, Th1 and Th17 lymphocytes or activated microglia, must rapidly provide energy to fuel inflammation, which is essentially accomplished by glycolysis and high lactate production. On the other hand, regulatory T cells or M2 macrophages, which are involved in immune regulation and resolution of inflammation, preferentially use fatty acid oxidation through the TCA cycle as a main source for energy production. Here, we discuss the impact of glycolytic metabolism at the different steps of the inflammatory response. Finally, we review a wide variety of molecular mechanisms which could explain the relationship between glycolytic metabolites and the pro-inflammatory phenotype, including signalling events, epigenetic remodelling, post-transcriptional regulation and post-translational modifications. Inflammatory processes are a common feature of many age-associated diseases, such as cardiovascular and neurodegenerative disorders. The finding that immunometabolism could be a master regulator of inflammation broadens the avenue for treating inflammation-related pathologies through the manipulation of the vascular and immune cell metabolism.
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Affiliation(s)
- Gonzalo Soto‐Heredero
- Immunometabolism and Inflammation LaboratoryCellular Communication & Inflammation UnitCentro de Biología Molecular Severo OchoaMadridSpain
- Department of Molecular BiologyFaculty of SciencesUniversidad Autónoma de Madrid (UAM)Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12)MadridSpain
| | - Manuel M. Gómez de las Heras
- Immunometabolism and Inflammation LaboratoryCellular Communication & Inflammation UnitCentro de Biología Molecular Severo OchoaMadridSpain
- Department of Molecular BiologyFaculty of SciencesUniversidad Autónoma de Madrid (UAM)Spain
| | - Enrique Gabandé‐Rodríguez
- Immunometabolism and Inflammation LaboratoryCellular Communication & Inflammation UnitCentro de Biología Molecular Severo OchoaMadridSpain
- Department of Molecular BiologyFaculty of SciencesUniversidad Autónoma de Madrid (UAM)Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12)MadridSpain
| | - Jorge Oller
- Immunometabolism and Inflammation LaboratoryCellular Communication & Inflammation UnitCentro de Biología Molecular Severo OchoaMadridSpain
- Department of Molecular BiologyFaculty of SciencesUniversidad Autónoma de Madrid (UAM)Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12)MadridSpain
| | - María Mittelbrunn
- Immunometabolism and Inflammation LaboratoryCellular Communication & Inflammation UnitCentro de Biología Molecular Severo OchoaMadridSpain
- Department of Molecular BiologyFaculty of SciencesUniversidad Autónoma de Madrid (UAM)Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12)MadridSpain
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Nagala M, Crocker PR. Towards understanding the cell surface phenotype, metabolic properties and immune functions of resident macrophages of the peritoneal cavity and splenic red pulp using high resolution quantitative proteomics. Wellcome Open Res 2020. [DOI: 10.12688/wellcomeopenres.16061.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background:Resident macrophages (Mϕs) are distributed throughout the body and are important for maintaining tissue homeostasis and for defence against infections. Tissue Mϕs are highly adapted to their microenvironment and thought to mediate tissue-specific functions involving metabolism and immune defence that are not fully elucidated. Methods:We have used high resolution quantitative proteomics to gain insights into the functions of two types of resident tissue Mϕs: peritoneal cavity Mϕs and splenic red pulp Mϕs. The cellular expression levels of many proteins were validated by flow cytometry and were consistently in agreement with the proteomics data.Results:Peritoneal and splenic red pulp macrophages displayed major differences in cell surface phenotype reflecting their adaptation to different tissue microenvironments and tissue-specific functions. Peritoneal Mϕs were shown to be enriched in a number of key enzymes and metabolic pathways normally associated with the liver, such as metabolism of fructose, detoxification, nitrogen homeostasis and the urea cycle. Supporting these observations, we show that peritoneal Mϕs are able to utilise glutamine and glutamate which are rich in peritoneum for urea generation. In comparison, splenic red pulp Mϕs were enriched in proteins important for adaptive immunity such as antigen presenting MHC molecules, in addition to proteins required for erythrocyte homeostasis and iron turnover. We also show that these tissue Mϕs may utilise carbon and nitrogen substrates for different metabolic fates to support distinct tissue-specific roles.Conclusions:This study provides new insights into the functions of tissue Mϕs in immunity and homeostasis. The comprehensive proteomics data sets are a valuable resource for biologists and immunologists.
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Hu R, Han Q, Zhang J. STAT3: A key signaling molecule for converting cold to hot tumors. Cancer Lett 2020; 489:29-40. [PMID: 32522692 DOI: 10.1016/j.canlet.2020.05.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/05/2020] [Accepted: 05/23/2020] [Indexed: 12/26/2022]
Abstract
Tumors can be classified as cold or hot according to the degree of immune cell infiltration into tumor tissues; cold tumors are insensitive to either chemotherapy or immunotherapy and are associated with poor prognosis. Recent studies have shown that STAT3 signaling molecules hinder the conversion of cold to hot tumors by regulating immunosuppressive molecule secretion and immunosuppressive cell functions. This review aims to present the most recent studies on how STAT3 regulates cold tumor formation and discuss its research status in cancer therapy. We also present insight for designing new therapeutic strategies to "heat" tumors and provide a reference for tumor immunotherapy.
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Affiliation(s)
- Rui Hu
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Qiuju Han
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China
| | - Jian Zhang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, 250012, China.
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Cytokine-like Roles for Metabolites in Immunity. Mol Cell 2020; 78:814-823. [DOI: 10.1016/j.molcel.2020.04.002] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 02/17/2020] [Accepted: 03/31/2020] [Indexed: 02/06/2023]
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Zhang J, Xie B, Xi Z, Zhao L, Cen L, Yang Y. A comparable study of polyglycolic acid's degradation on macrophages' activation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 109:110574. [DOI: 10.1016/j.msec.2019.110574] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/23/2019] [Accepted: 12/18/2019] [Indexed: 01/03/2023]
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Harmon C, O'Farrelly C, Robinson MW. The Immune Consequences of Lactate in the Tumor Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1259:113-124. [PMID: 32578174 DOI: 10.1007/978-3-030-43093-1_7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The tumor microenvironment consists of complex and dynamic networks of cytokines, growth factors, and metabolic products. These contribute to significant alterations in tissue architecture, cell growth, immune cell phenotype, and function. Increased glycolytic flux is commonly observed in solid tumors and is associated with significant changes in metabolites, generating high levels of lactate. While elevated glycolytic flux is a characteristic metabolic adaption of tumor cells, glycolysis is also a key metabolic program utilized by a variety of inflammatory immune cells. As such lactate and the pH changes associated with lactate transport affect not only tumor cells but also immune cells. Here we provide an overview of lactate metabolic pathways and the effects lactate has on tumor growth and immune cell function. This knowledge provides opportunities for synergistic therapeutic approaches that combine metabolic drugs, which limit tumor growth and support immune cell function, together with immunotherapies to enhance tumor eradication.
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Affiliation(s)
- Cathal Harmon
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- School of Biochemistry & Immunology, Trinity College Dublin, Dublin, Ireland
| | - Cliona O'Farrelly
- School of Biochemistry & Immunology, Trinity College Dublin, Dublin, Ireland
- School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Mark W Robinson
- Department of Biology, Maynooth University, Maynooth, Ireland.
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Zhang J, Song C, Han Y, Xi Z, Zhao L, Cen L, Yang Y. Regulation of inflammatory response to polyglycolic acid scaffolds through incorporation of sodium tripolyphosphate. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109349] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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Brown TP, Ganapathy V. Lactate/GPR81 signaling and proton motive force in cancer: Role in angiogenesis, immune escape, nutrition, and Warburg phenomenon. Pharmacol Ther 2019; 206:107451. [PMID: 31836453 DOI: 10.1016/j.pharmthera.2019.107451] [Citation(s) in RCA: 171] [Impact Index Per Article: 34.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 11/22/2019] [Indexed: 12/15/2022]
Abstract
Reprogramming of biochemical pathways is a hallmark of cancer cells, and generation of lactic acid from glucose/glutamine represents one of the consequences of such metabolic alterations. Cancer cells export lactic acid out to prevent intracellular acidification, not only increasing lactate levels but also creating an acidic pH in extracellular milieu. Lactate and protons in tumor microenvironment are not innocuous bystander metabolites but have special roles in promoting tumor-cell proliferation and growth. Lactate functions as a signaling molecule by serving as an agonist for the G-protein-coupled receptor GPR81, involving both autocrine and paracrine mechanisms. In the autocrine pathway, cancer cell-generated lactate activates GPR81 on cancer cells; in the paracrine pathway, cancer cell-generated lactate activates GPR81 on immune cells, endothelial cells, and adipocytes present in tumor stroma. The end result of GPR81 activation is promotion of angiogenesis, immune evasion, and chemoresistance. The acidic pH creates an inwardly directed proton gradient across the cancer-cell plasma membrane, which provides driving force for proton-coupled transporters in cancer cells to enhance supply of selective nutrients. There are several molecular targets in the pathways involved in the generation of lactic acid by cancer cells and its role in tumor promotion for potential development of novel anticancer therapeutics.
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Affiliation(s)
- Timothy P Brown
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Vadivel Ganapathy
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
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Targeting L-Lactate Metabolism to Overcome Resistance to Immune Therapy of Melanoma and Other Tumor Entities. JOURNAL OF ONCOLOGY 2019; 2019:2084195. [PMID: 31781212 PMCID: PMC6875281 DOI: 10.1155/2019/2084195] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/13/2019] [Accepted: 09/10/2019] [Indexed: 02/06/2023]
Abstract
Although immunotherapy plays a significant role in tumor therapy, its efficacy is impaired by an immunosuppressive tumor microenvironment. A molecule that contributes to the protumor microenvironment is the metabolic product lactate. Lactate is produced in large amounts by cancer cells in response to either hypoxia or pseudohypoxia, and its presence in excess alters the normal functioning of immune cells. A key enzyme involved in lactate metabolism is lactate dehydrogenase (LDH). Elevated baseline LDH serum levels are associated with poor outcomes of current anticancer (immune) therapies, especially in patients with melanoma. Therefore, targeting LDH and other molecules involved in lactate metabolism might improve the efficacy of immune therapies. This review summarizes current knowledge about lactate metabolism and its role in the tumor microenvironment. Based on that information, we develop a rationale for deploying drugs that target lactate metabolism in combination with immune checkpoint inhibitors to overcome lactate-mediated immune escape of tumor cells.
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Casey LM, Kakade S, Decker JT, Rose JA, Deans K, Shea LD, Pearson RM. Cargo-less nanoparticles program innate immune cell responses to toll-like receptor activation. Biomaterials 2019; 218:119333. [PMID: 31301576 DOI: 10.1016/j.biomaterials.2019.119333] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 06/28/2019] [Accepted: 07/01/2019] [Indexed: 12/28/2022]
Abstract
Developing biomaterials to control the responsiveness of innate immune cells represents a clinically relevant approach to treat diseases with an underlying inflammatory basis, such as sepsis. Sepsis can involve activation of Toll-like receptor (TLR) signaling, which activates numerous inflammatory pathways. The breadth of this inflammation has limited the efficacy of pharmacological interventions that target a single molecular pathway. Here, we developed cargo-less particles as a single-agent, multi-target platform to elicit broad anti-inflammatory action against innate immune cells challenged by multiple TLR agonists. The particles, prepared from poly(lactic-co-glycolic acid) (PLGA) and poly(lactic acid) (PLA), displayed potent molecular weight-, polymer composition-, and charge-dependent immunomodulatory properties, including downregulation of TLR-induced costimulatory molecule expression and cytokine secretion. Particles prepared using the anionic surfactant poly(ethylene-alt-maleic acid) (PEMA) significantly blunted the responses of antigen presenting cells to TLR4 (lipopolysaccharide) and TLR9 (CpG-ODN) agonists, demonstrating broad inhibitory activity to both extracellular and intracellular TLR ligands. Interestingly, particles prepared using poly(vinyl alcohol) (PVA), a neutrally-charged surfactant, only marginally inhibited inflammatory cytokine secretions. The biochemical pathways modulated by particles were investigated using TRanscriptional Activity CEll aRrays (TRACER), which implicated IRF1, STAT1, and AP-1 in the mechanism of action for PLA-PEMA particles. Using an LPS-induced endotoxemia mouse model, administration of PLA-PEMA particles prior to or following a lethal challenge resulted in significantly improved mean survival. Cargo-less particles affect multiple biological pathways involved in the development of inflammatory responses by innate immune cells and represent a potentially promising therapeutic strategy to treat severe inflammation.
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Affiliation(s)
- Liam M Casey
- Department of Chemical Engineering, University of Michigan, 2300 Hayward Avenue, Ann Arbor, MI, 48105, USA
| | - Sandeep Kakade
- Department of Biomedical Engineering, University of Michigan, 1119 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, MI, 48109-2099, USA
| | - Joseph T Decker
- Department of Biomedical Engineering, University of Michigan, 1119 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, MI, 48109-2099, USA
| | - Justin A Rose
- Department of Biomedical Engineering, University of Michigan, 1119 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, MI, 48109-2099, USA
| | - Kyle Deans
- Department of Biomedical Engineering, University of Michigan, 1119 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, MI, 48109-2099, USA
| | - Lonnie D Shea
- Department of Chemical Engineering, University of Michigan, 2300 Hayward Avenue, Ann Arbor, MI, 48105, USA; Department of Biomedical Engineering, University of Michigan, 1119 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, MI, 48109-2099, USA.
| | - Ryan M Pearson
- Department of Biomedical Engineering, University of Michigan, 1119 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, MI, 48109-2099, USA; Department of Pharmaceutical Sciences, University of Maryland, 20 N. Pine Street, Baltimore, MD, 21201, USA.
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