1
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Gan Z, Guo Y, Zhao M, Ye Y, Liao Y, Liu B, Yin J, Zhou X, Yan Y, Yin Y, Ren W. Excitatory amino acid transporter supports inflammatory macrophage responses. Sci Bull (Beijing) 2024; 69:2405-2419. [PMID: 38614854 DOI: 10.1016/j.scib.2024.03.055] [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: 12/20/2023] [Revised: 01/28/2024] [Accepted: 03/25/2024] [Indexed: 04/15/2024]
Abstract
Excitatory amino acid transporters (EAATs) are responsible for excitatory amino acid transportation and are associated with auto-immune diseases in the central nervous system and peripheral tissues. However, the subcellular location and function of EAAT2 in macrophages are still obscure. In this study, we demonstrated that LPS stimulation increases expression of EAAT2 (coded by Slc1a2) via NF-κB signaling. EAAT2 is necessary for inflammatory macrophage polarization through sustaining mTORC1 activation. Mechanistically, lysosomal EAAT2 mediates lysosomal glutamate and aspartate efflux to maintain V-ATPase activation, which sustains macropinocytosis and mTORC1. We also found that mice with myeloid depletion of Slc1a2 show alleviated inflammatory responses in LPS-induced systemic inflammation and high-fat diet induced obesity. Notably, patients with type II diabetes (T2D) have a higher level of expression of lysosomal EAAT2 and activation of mTORC1 in blood macrophages. Taken together, our study links the subcellular location of amino acid transporters with the fate decision of immune cells, which provides potential therapeutic targets for the treatment of inflammatory diseases.
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Affiliation(s)
- Zhending Gan
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yan Guo
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Muyang Zhao
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yuyi Ye
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yuexia Liao
- School of Nursing & School of Public Health, Yangzhou University, Yangzhou 225009, China
| | - Bingnan Liu
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Jie Yin
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Xihong Zhou
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Yuqi Yan
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yulong Yin
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Wenkai Ren
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China.
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2
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Megha KB, Arathi A, Shikha S, Alka R, Ramya P, Mohanan PV. Significance of Melatonin in the Regulation of Circadian Rhythms and Disease Management. Mol Neurobiol 2024; 61:5541-5571. [PMID: 38206471 DOI: 10.1007/s12035-024-03915-0] [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: 10/09/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024]
Abstract
Melatonin, the 'hormone of darkness' is a neuronal hormone secreted by the pineal gland and other extra pineal sites. Responsible for the circadian rhythm and seasonal behaviour of vertebrates and mammals, melatonin is responsible for regulating various physiological conditions and the maintenance of sleep, body weight and the neuronal activities of the ocular sites. With its unique amphiphilic structure, melatonin can cross the cellular barriers and elucidate its activities in the subcellular components, including mitochondria. Melatonin is a potential scavenger of oxygen and nitrogen-reactive species and can directly obliterate the ROS and RNS by a receptor-independent mechanism. It can also regulate the pro- and anti-inflammatory cytokines in various pathological conditions and exhibit therapeutic activities against neurodegenerative, psychiatric disorders and cancer. Melatonin is also found to show its effects on major organs, particularly the brain, liver and heart, and also imparts a role in the modulation of the immune system. Thus, melatonin is a multifaceted candidate with immense therapeutic potential and is still considered an effective supplement on various therapies. This is primarily due to rectification of aberrant circadian rhythm by improvement of sleep quality associated with risk development of neurodegenerative, cognitive, cardiovascular and other metabolic disorders, thereby enhancing the quality of life.
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Affiliation(s)
- K B Megha
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum, 695 012, Kerala, India
| | - A Arathi
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum, 695 012, Kerala, India
| | - Saini Shikha
- CSIR-Institute of Microbial Technology, Sector 39-A, Chandigarh, 160036, India
| | - Rao Alka
- CSIR-Institute of Microbial Technology, Sector 39-A, Chandigarh, 160036, India
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad, 201002, India
| | - Prabhu Ramya
- P.G. Department of Biotechnology, Government Arts College, Trivandrum, 695 014, India
| | - P V Mohanan
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum, 695 012, Kerala, India.
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3
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Cai Y, Zhang X, Yang C, Jiang Y, Chen Y. Melatonin alleviates high-fat-diet-induced dry eye by regulating macrophage polarization via IFT27 and lowering ERK/JNK phosphorylation. iScience 2024; 27:110367. [PMID: 39100927 PMCID: PMC11294704 DOI: 10.1016/j.isci.2024.110367] [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: 01/11/2024] [Revised: 03/03/2024] [Accepted: 06/21/2024] [Indexed: 08/06/2024] Open
Abstract
Dry eye disease is the most common ocular surface disease globally, requiring a more effective treatment. We observed that a high-fat diet induced macrophage polarization to M1 and further induced inflammation in the meibomian and lacrimal glands. A four-week treatment with melatonin (MLT) eye drops can regulate macrophage polarization and alleviate dry eye signs. To investigate the therapeutic effects and mechanisms of action of MLT on high-fat-diet-induced dry eye disease in mice, RAW 264.7 cells pretreated with LPS and/or MLT underwent digital RNA with the perturbation of genes sequencing (DRUG-seq). Results showed that IFT27 was up-regulated, and MAPK pathways were suppressed after MLT pre-treatment. ERK/JNK phosphorylation was reduced in meibomian glands of MLT-treated dry eye mice and increased in IFT27 knockdown RAW 264.7 cells. In summary, MLT regulated macrophage polarization via IFT27 and reduced ERK/JNK phosphorylation. These results support that MLT is a promising medication for dry eye disease.
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Affiliation(s)
- Yuying Cai
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xin Zhang
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Chuanxi Yang
- Department of Cardiology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yaping Jiang
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yihui Chen
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
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4
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Huang Y, Xu Y, Huang Z, Mao J, Hui Y, Rui M, Jiang X, Wu J, Ding Z, Feng Y, Gu Y, Chen L. Melatonin and calcium phosphate crystal-loaded poly(L-lactic acid) porous microspheres reprogram macrophages to improve bone repair. J Mater Chem B 2024. [PMID: 38940905 DOI: 10.1039/d3tb02965d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
The bone immune microenvironment can influence the occurrence and progression of bone defects. To date, research on promoting macrophage M2 polarization to improve bone injury repair has been insufficient. In this study, we designed an injectable poly(L-lactic acid) (PLLA) porous microsphere that forms calcium phosphate crystals on its surface by binding to melatonin, followed by bionanomimetic mineralization in vitro. The microsphere is injectable and degradable, and its release of melatonin (MT) and calcium phosphate (CaP) crystals promotes macrophage M2 polarization, reprogramming of macrophages, and enhanced osteogenesis. After LPS stimulation, the proportion of M2-polarized macrophages in the MS@CaP@MT group was 39.2 ± 2.7%, significantly higher than that in other groups (P < 0.05). Further, in the MS@CaP@MT group, rats exhibited bone mineral densities of 129.4 ± 12.8 mg cc-1 at 2 weeks and 171.6 ± 13.6 mg cc-1 at 4 weeks in the defect area, which were significantly higher than those in other groups (P < 0.05). Using an animal model of femoral condylar defects, we demonstrated that MT PLLA porous microspheres loaded with calcium phosphate crystals can improve the immune microenvironment and form a microsphere-centered osteogenesis model. This significantly accelerates bone defect repair and provides a potential strategy for bone defect treatment.
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Affiliation(s)
- Yiyang Huang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Yichang Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Ziyan Huang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Jiannan Mao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
- Department of Orthopaedics, Jiangyin Clinical College, Xuzhou Medical University, No. 163 Shoushan Road, Jiang Yin 214400, China
| | - Yujian Hui
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
- Department of Orthopaedics, Jiangyin Clinical College, Xuzhou Medical University, No. 163 Shoushan Road, Jiang Yin 214400, China
| | - Min Rui
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
- Department of Orthopaedics, Jiangyin Clinical College, Xuzhou Medical University, No. 163 Shoushan Road, Jiang Yin 214400, China
| | - Xinzhao Jiang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Jie Wu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Zhouye Ding
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Yu Feng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Yong Gu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
| | - Liang Chen
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 188 Shizi Road, Suzhou, Jiangsu, 215006, PR China.
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5
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Ma C, Li H, Lu S, Li X. The Role and Therapeutic Potential of Melatonin in Degenerative Fundus Diseases: Diabetes Retinopathy and Age-Related Macular Degeneration. Drug Des Devel Ther 2024; 18:2329-2346. [PMID: 38911030 PMCID: PMC11193467 DOI: 10.2147/dddt.s471525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Accepted: 06/13/2024] [Indexed: 06/25/2024] Open
Abstract
Degenerative fundus disease encompasses a spectrum of ocular diseases, including diabetic retinopathy (DR) and age-related macular degeneration (AMD), which are major contributors to visual impairment and blindness worldwide. The development and implementation of effective strategies for managing and preventing the onset and progression of these diseases are crucial for preserving patients' visual acuity. Melatonin, a neurohormone primarily produced by the pineal gland, exhibits properties such as circadian rhythm modulation, antioxidant activity, anti-inflammatory effects, and neuroprotection within the ocular environment. Furthermore, melatonin has been shown to suppress neovascularization and reduce vascular leakage, both of which are critical in the pathogenesis of degenerative fundus lesions. Consequently, melatonin emerges as a promising therapeutic candidate for degenerative ocular diseases. This review provides a comprehensive overview of melatonin synthesis, its localization within ocular tissues, and its mechanisms of action, particularly in regulating melatonin production, thereby underscoring its potential as a therapeutic agent for degenerative fundus diseases.
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Affiliation(s)
- Chao Ma
- Department of Ophthalmology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Haoyu Li
- Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- Hunan Clinical Research Centre of Ophthalmic Disease, Changsha, Hunan, People’s Republic of China
| | - Shuwen Lu
- Department of Ophthalmology, the First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, People’s Republic of China
| | - Xian Li
- Manchester Royal Eye Hospital, Manchester University NHS Foundation Trust, Manchester, UK
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
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Zhao X, Pang J, Zhang W, Peng X, Yang Z, Bai G, Xia Y. Tryptophan metabolism and piglet diarrhea: Where we stand and the challenges ahead. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:123-133. [PMID: 38766516 PMCID: PMC11101943 DOI: 10.1016/j.aninu.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/13/2024] [Accepted: 03/20/2024] [Indexed: 05/22/2024]
Abstract
The intestinal architecture of piglets is vulnerable to disruption during weaning transition and leads to diarrhea, frequently accompanied by inflammation and metabolic disturbances (including amino acid metabolism). Tryptophan (Trp) plays an essential role in orchestrating intestinal immune tolerance through its metabolism via the kynurenine, 5-hydroxytryptamine, or indole pathways, which could be dictated by the gut microbiota either directly or indirectly. Emerging evidence suggests a strong association between piglet diarrhea and Trp metabolism. Here we aim to summarize the intricate balance of microbiota-host crosstalk by analyzing alterations in both the host and microbial pathways of Trp and discuss how Trp metabolism may affect piglet diarrhea. Overall, this review could provide valuable insights to explore effective strategies for managing piglet diarrhea and the related challenges.
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Affiliation(s)
- Xuan Zhao
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Jiaman Pang
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Wanghong Zhang
- Yunnan Vocational College of Agriculture, Kunming 650211, China
| | - Xie Peng
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Zhenguo Yang
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Guangdong Bai
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Yaoyao Xia
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
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Tao Y, Zhao Q, Lu C, Yong W, Xu M, Wang Z, Leng X. Melatonin suppresses atherosclerosis by ferroptosis inhibition via activating NRF2 pathway. FASEB J 2024; 38:e23678. [PMID: 38780199 DOI: 10.1096/fj.202400427rr] [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: 02/26/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
Melatonin (MLT), a conserved small indole compound, exhibits anti-inflammatory and antioxidant properties, contributing to its cardioprotective effects. Lipoprotein-associated phospholipase A2 (Lp-PLA2) is associated with atherosclerosis disease risk, and is known as an atherosclerosis risk biomarker. This study aimed to investigate the impact of MLT on Lp-PLA2 expression in the atherosclerotic process and explore the underlying mechanisms involved. In vivo, ApoE-/- mice were fed a high-fat diet, with or without MLT administration, after which the plaque area and collagen content were assessed. Macrophages were pretreated with MLT combined with ox-LDL, and the levels of ferroptosis-related proteins, NRF2 activation, mitochondrial function, and oxidative stress were measured. MLT administration significantly attenuated atherosclerotic plaque progression, as evidenced by decreased plaque area and increased collagen. Compared with those in the high-fat diet (HD) group, the levels of glutathione peroxidase 4 (GPX4) and SLC7A11 (xCT, a cystine/glutamate transporter) in atherosclerotic root macrophages were significantly increased in the MLT group. In vitro, MLT activated the nuclear factor-E2-related Factor 2 (NRF2)/SLC7A11/GPX4 signaling pathway, enhancing antioxidant capacity while reducing lipid peroxidation and suppressing Lp-PLA2 expression in macrophages. Moreover, MLT reversed ox-LDL-induced ferroptosis, through the use of ferrostatin-1 (a ferroptosis inhibitor) and/or erastin (a ferroptosis activator). Furthermore, the protective effects of MLT on Lp-PLA2 expression, antioxidant capacity, lipid peroxidation, and ferroptosis were decreased in ML385 (a specific NRF2 inhibitor)-treated macrophages and in AAV-sh-NRF2 treated ApoE-/- mice. MLT suppresses Lp-PLA2 expression and atherosclerosis processes by inhibiting macrophage ferroptosis and partially activating the NRF2 pathway.
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Affiliation(s)
- Yangyang Tao
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qinglong Zhao
- Department of Interventional Radiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chengbo Lu
- Department of Cardiology, The First Affiliated Hospital of Jiamusi University, jiamusi, China
| | - Weilin Yong
- Department of Medical Services, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mingyuan Xu
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhuo Wang
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaoping Leng
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Xu W, Wu Y, Wang S, Hu S, Wang Y, Zhou W, Chen Y, Li Q, Zhu L, Yang H, Lv X. Melatonin alleviates septic ARDS by inhibiting NCOA4-mediated ferritinophagy in alveolar macrophages. Cell Death Discov 2024; 10:253. [PMID: 38789436 PMCID: PMC11126704 DOI: 10.1038/s41420-024-01991-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 04/15/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
Ferroptosis is a novel form of programmed cell death which can exacerbate lung injury in septic acute respiratory distress syndrome (ARDS). Alveolar macrophages, crucial innate immune cells, play a pivotal role in the pathogenesis of ARDS. Ferritinophagy is a process of ferritin degradation mediated by nuclear receptor coactivator 4 (NCOA4) which releases large amounts of iron ions thus promoting ferroptosis. Recent evidence revealed that inhibiting macrophage ferroptosis can effectively attenuate pulmonary inflammatory injury. Melatonin (MT), an endogenous neurohormone, has antioxidant and anti-inflammatory effects and can reduce septic ARDS. However, it is not clear whether MT's pulmonary protective effect is related to the inhibition of macrophage ferritinophagy. Our in vitro experiments demonstrated that MT decreased intracellular malondialdehyde (MDA), Fe2+, and lipid peroxidation levels, increased glutathione (GSH) levels and cell proliferation, and upregulated glutathione peroxidase 4 (GPX4) and ferritin heavy chain 1 (FTH1) protein levels in LPS-treated macrophages. Mechanistically, the antiferroptotic effect of MT on LPS-treated macrophages was significantly compromised by the overexpression of NCOA4. Our in vivo experiments revealed that MT alleviated the protein expression of NCOA4 and FTH1 in the alveolar macrophages of septic mice. Furthermore, MT improved lipid peroxidation and mitigated damage in alveolar macrophages and lung tissue, ultimately increasing the survival rates of septic mice. These findings indicate that MT can inhibit ferroptosis in an NCOA4-mediated ferritinophagy manner, thereby ameliorating septic ARDS.
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Affiliation(s)
- Wenting Xu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
- Anhui Medical University, Hefei, Anhui, 236000, People's Republic of China
- The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, People's Republic of China
| | - Yutong Wu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
| | - Sheng Wang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
| | - Song Hu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
| | - Yu Wang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
| | - Wenyu Zhou
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
| | - Yuanli Chen
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
| | - Quanfu Li
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
| | - Lina Zhu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China
| | - Hao Yang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China.
| | - Xin Lv
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, 200433, People's Republic of China.
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Jurjus A, El Masri J, Ghazi M, El Ayoubi LM, Soueid L, Gerges Geagea A, Jurjus R. Mechanism of Action of Melatonin as a Potential Adjuvant Therapy in Inflammatory Bowel Disease and Colorectal Cancer. Nutrients 2024; 16:1236. [PMID: 38674926 PMCID: PMC11054672 DOI: 10.3390/nu16081236] [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: 03/22/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Inflammatory bowel disease (IBD), a continuum of chronic inflammatory diseases, is tightly associated with immune system dysregulation and dysbiosis, leading to inflammation in the gastrointestinal tract (GIT) and multiple extraintestinal manifestations. The pathogenesis of IBD is not completely elucidated. However, it is associated with an increased risk of colorectal cancer (CRC), which is one of the most common gastrointestinal malignancies. In both IBD and CRC, a complex interplay occurs between the immune system and gut microbiota (GM), leading to the alteration in GM composition. Melatonin, a neuroendocrine hormone, was found to be involved with this interplay, especially since it is present in high amounts in the gut, leading to some protective effects. Actually, melatonin enhances the integrity of the intestinal mucosal barrier, regulates the immune response, alleviates inflammation, and attenuates oxidative stress. Thereby, the authors summarize the multifactorial interaction of melatonin with IBD and with CRC, focusing on new findings related to the mechanisms of action of this hormone, in addition to its documented positive outcomes on the treatment of these two pathologies and possible future perspectives to use melatonin as an adjuvant therapy.
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Affiliation(s)
- Abdo Jurjus
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon; (J.E.M.); (M.G.); (L.S.); (A.G.G.); (R.J.)
| | - Jad El Masri
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon; (J.E.M.); (M.G.); (L.S.); (A.G.G.); (R.J.)
- Faculty of Medical Sciences, Lebanese University, Beirut 6573, Lebanon;
| | - Maya Ghazi
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon; (J.E.M.); (M.G.); (L.S.); (A.G.G.); (R.J.)
- Faculty of Medical Sciences, Lebanese University, Beirut 6573, Lebanon;
| | | | - Lara Soueid
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon; (J.E.M.); (M.G.); (L.S.); (A.G.G.); (R.J.)
| | - Alice Gerges Geagea
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon; (J.E.M.); (M.G.); (L.S.); (A.G.G.); (R.J.)
| | - Rosalyn Jurjus
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon; (J.E.M.); (M.G.); (L.S.); (A.G.G.); (R.J.)
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Reiter RJ, Sharma R, DA Chuffa LG, Zuccari DA, Amaral FG, Cipolla-Neto J. Melatonin-mediated actions and circadian functions that improve implantation, fetal health and pregnancy outcome. Reprod Toxicol 2024; 124:108534. [PMID: 38185312 DOI: 10.1016/j.reprotox.2024.108534] [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: 09/04/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
This review summarizes data related to the potential importance of the ubiquitously functioning antioxidant, melatonin, in resisting oxidative stress and protecting against common pathophysiological disorders that accompany implantation, gestation and fetal development. Melatonin from the maternal pineal gland, but also trophoblasts in the placenta, perhaps in the mitochondria, produce this molecule as a hedge against impairment of the uteroplacental unit. We also discuss the role of circadian disruption on reproductive disorders of pregnancy. The common disorders of pregnancy, i.e., stillborn fetus, recurrent fetal loss, preeclampsia, fetal growth retardation, premature delivery, and fetal teratology are all conditions in which elevated oxidative stress plays a role and experimental supplementation with melatonin has been shown to reduce the frequency or severity of these conditions. Moreover, circadian disruption often occurs during pregnancy and has a negative impact on fetal health; conversely, melatonin has circadian rhythm synchronizing actions to overcome the consequences of chronodisruption which often appear postnatally. In view of the extensive findings supporting the ability of melatonin, an endogenously-produced and non-toxic molecule, to protect against experimental placental, fetal, and maternal pathologies, it should be given serious consideration as a supplement to forestall the disorders of pregnancy. Until recently, the collective idea was that melatonin supplements should be avoided during pregnancy. The data summarized herein suggests otherwise. The current findings coupled with the evidence, published elsewhere, showing that melatonin is highly protective of the fertilized oocyte from oxidative damage argues in favor of its use for improving pregnancy outcome generally.
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Affiliation(s)
- Russel J Reiter
- Department of Cell Systems and Anatomy, Long School of Medicine, UT Health San Antonio, San Antonio, TX, USA.
| | - Ramaswamy Sharma
- Applied Biomedical Sciences, School of Osteopathic Medicine, University of the Incarnate Word, San Antonio, TX, USA.
| | - Luiz Gustavo DA Chuffa
- Department of Structural and Functional Biology, Institute of Bioscience of Botucatu, Botucatu, São Paulo, Brazil
| | - Debora Apc Zuccari
- Laboratorio de Investigacao Molecular do Cancer, Faculdade de Medicina de Sao Jose do Rio Preto, Sao Jose do Rio Preto, Brazil
| | - Fernanda G Amaral
- Department of Physiology, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Jose Cipolla-Neto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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11
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Gu P, Wu Y, Lu W. New Perspectives on the Role and Therapeutic Potential of Melatonin in Cardiovascular Diseases. Am J Cardiovasc Drugs 2024; 24:171-195. [PMID: 38436867 DOI: 10.1007/s40256-024-00631-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/18/2024] [Indexed: 03/05/2024]
Abstract
Cardiovascular diseases (CVDs) are the leading cause of death and disability worldwide. It is essential to develop novel interventions to prevent/delay CVDs by targeting their fundamental cellular and molecular processes. Melatonin is a small indole molecule acting both as a hormone of the pineal gland and as a local regulator molecule in various tissues. It has multiple features that may contribute to its cardiovascular protection. Moreover, melatonin enters all cells and subcellular compartments and crosses morphophysiological barriers. Additionally, this indoleamine also serves as a safe exogenous therapeutic agent. Increasing evidence has demonstrated the beneficial effects of melatonin in preventing and improving cardiovascular risk factors. Exogenous administration of melatonin, as a result of its antioxidant and anti-inflammatory properties, has been reported to decrease blood pressure, protect against atherosclerosis, attenuate molecular and cellular damage resulting from cardiac ischemia/reperfusion, and improve the prognosis of myocardial infarction and heart failure. This review aims to summarize the beneficial effects of melatonin against these conditions, the possible protective mechanisms of melatonin, and its potential clinical applicability in CVDs.
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Affiliation(s)
- Pengchen Gu
- Department of Physiology and Neurobiology, Suzhou Medical College of Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiang Su Prov., China
| | - Yuxin Wu
- Department of Physiology and Neurobiology, Suzhou Medical College of Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiang Su Prov., China
| | - Weiwei Lu
- Department of Physiology and Neurobiology, Suzhou Medical College of Soochow University, 199 Ren-Ai Road, Suzhou, 215123, Jiang Su Prov., China.
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12
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Joseph TT, Schuch V, Hossack DJ, Chakraborty R, Johnson EL. Melatonin: the placental antioxidant and anti-inflammatory. Front Immunol 2024; 15:1339304. [PMID: 38361952 PMCID: PMC10867115 DOI: 10.3389/fimmu.2024.1339304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 01/15/2024] [Indexed: 02/17/2024] Open
Abstract
Melatonin (N-acetyl-5-methoxytryptamine) is an indolamine hormone with many physiological and biological roles. Melatonin is an antioxidant, anti-inflammatory, free radical scavenger, circadian rhythm regulator, and sleep hormone. However, its most popular role is the ability to regulate sleep through the circadian rhythm. Interestingly, recent studies have shown that melatonin is an important and essential hormone during pregnancy, specifically in the placenta. This is primarily due to the placenta's ability to synthesize its own melatonin rather than depending on the pineal gland. During pregnancy, melatonin acts as an antioxidant and anti-inflammatory, which is necessary to ensure a stable environment for both the mother and the fetus. It is an essential antioxidant in the placenta because it reduces oxidative stress by constantly scavenging for free radicals, i.e., maintain the placenta's integrity. In a healthy pregnancy, the maternal immune system is constantly altered to accommodate the needs of the growing fetus, and melatonin acts as a key anti-inflammatory by regulating immune homeostasis during early and late gestation. This literature review aims to identify and summarize melatonin's role as a powerful antioxidant and anti-inflammatory that reduces oxidative stress and inflammation to maintain a favorable homeostatic environment in the placenta throughout gestation.
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Affiliation(s)
- Tyana T. Joseph
- Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| | - Viviane Schuch
- Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| | - Daniel J. Hossack
- Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| | - Rana Chakraborty
- Department of Pediatric and Adolescent Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN, United States
| | - Erica L. Johnson
- Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
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13
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Pimenta GF, Awata WMC, Orlandin GG, Silva-Neto JA, Assis VO, da Costa RM, Bruder-Nascimento T, Tostes RC, Tirapelli CR. Melatonin prevents overproduction of reactive oxygen species and vascular dysfunction induced by cyclophosphamide. Life Sci 2024; 338:122361. [PMID: 38158040 DOI: 10.1016/j.lfs.2023.122361] [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: 10/30/2023] [Revised: 12/06/2023] [Accepted: 12/16/2023] [Indexed: 01/03/2024]
Abstract
AIMS Overproduction of reactive oxygen species (ROS) is a pathologic hallmark of cyclophosphamide toxicity. For this reason, antioxidant compounds emerge as promising tools for preventing tissue damage induced by cyclophosphamide. We hypothesized that melatonin would display cytoprotective action in the vasculature by preventing cyclophosphamide-induced oxidative stress. MATERIALS AND METHODS Male C57BL/6 mice (22-25 g) were injected with a single dose of cyclophosphamide (300 mg/kg; i.p.). Mice were pretreated or not with melatonin (10 mg/kg/day, i.p.), given during 4 days before cyclophosphamide injection. Functional (vascular reactivity) and oxidative/inflammatory patterns were evaluated at 24 h in resistance arteries. The antioxidant action of melatonin was assessed in vitro in cultured vascular smooth muscle cells (VSMCs) of mesenteric arteries. KEY FINDINGS Cyclophosphamide induced ROS generation in both mesenteric arterial bed (MAB) and cultured VSMCs, and this was normalized by melatonin. Cyclophosphamide-induced ROS generation and lipoperoxidation in the bladder and kidney was also prevented by melatonin. Increased levels of tumor necrosis factor (TNF)-α and interleukin (IL)-6 were detected in the MAB of cyclophosphamide-treated mice, all of which were prevented by melatonin. Functional assays using second-order mesenteric arteries of cyclophosphamide-treated mice revealed a decrease in vascular contractility. Melatonin prevented vascular hypocontractility in the cyclophosphamide group. Melatonin partially prevented the decrease in myeloperoxidase (MPO) and N-acetyl-beta-D-glucosaminidase (NAG) activities in the MAB of the cyclophosphamide group. SIGNIFICANCE Melatonin may constitute a novel and promising therapeutic approach for management of the toxic effects induced by cyclophosphamide in the vasculature.
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Affiliation(s)
- Gustavo F Pimenta
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil; Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Wanessa M C Awata
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil; Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil; Vascular Medicine Institute (VMI), University of Pittsburgh, Pittsburgh, PA, USA
| | - Gabrielly G Orlandin
- Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Julio A Silva-Neto
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Victor O Assis
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil; Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Rafael M da Costa
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | | | - Rita C Tostes
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Carlos R Tirapelli
- Laboratório de Farmacologia Cardiovascular, DEPCH, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil.
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14
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Reiter RJ, Sharma R, Chuffa LGDA, Simko F, Dominguez-Rodriguez A. Mitochondrial Melatonin: Beneficial Effects in Protecting against Heart Failure. Life (Basel) 2024; 14:88. [PMID: 38255703 PMCID: PMC10820220 DOI: 10.3390/life14010088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
Cardiovascular disease is the cause of physical infirmity and thousands of deaths annually. Typically, during heart failure, cardiomyocyte mitochondria falter in terms of energy production and metabolic processing. Additionally, inflammation and the accumulation of non-contractile fibrous tissue contribute to cardiac malfunction. Melatonin, an endogenously produced molecule, experimentally reduces the initiation and progression of atherosclerotic lesions, which are often the basis of coronary artery disease. The current review critically analyzes published data related to the experimental use of melatonin to forestall coronary artery pathologies. Collectively, these studies document melatonin's anti-atherosclerotic actions in reducing LDL oxidation and triglyceride levels, lowering endothelial malfunction, limiting adhesion molecule formation, preventing macrophage polarization to the M1 pro-inflammatory phenotype, changing cellular metabolism, scavenging destructive reactive oxygen species, preventing the proliferation and invasion of arterial smooth muscle cells into the lesioned area, restricting the ingrowth of blood vessels from the vasa vasorum, and solidifying the plaque cap to reduce the chance of its rupture. Diabetic hyperglycemia, which aggravates atherosclerotic plaque formation, is also inhibited by melatonin supplementation in experimental animals. The potential value of non-toxic melatonin as a possible inhibitor of cardiac pathology in humans should be seriously considered by performing clinical trials using this multifunctional molecule.
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Affiliation(s)
- Russel J. Reiter
- Department of Cell Systems and Anatomy, Long School of Medicine, UT Health San Antonio, San Antonio, TX 78229, USA
| | - Ramaswamy Sharma
- Applied Biomedical Sciences, School of Osteopathic Medicine, University of the Incarnate Word, San Antonio, TX 78235, USA
| | - Luiz Gustavo de Almeida Chuffa
- Department of Structural and Functional Biology-IBB/UNESP, Institute of Biosciences of Botucatu, Universidade Estadual Paulista, Botucatu 18618-689, São Paulo, Brazil;
| | - Fedor Simko
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, 81108 Bratislava, Slovakia;
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15
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Liu B, Fan L, Wang Y, Wang H, Yan Y, Chen S, Hung I, Liu C, Wei H, Ge L, Ren W. Gut microbiota regulates host melatonin production through epithelial cell MyD88. Gut Microbes 2024; 16:2313769. [PMID: 38353638 PMCID: PMC10868534 DOI: 10.1080/19490976.2024.2313769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 01/30/2024] [Indexed: 02/16/2024] Open
Abstract
Melatonin has various physiological effects, such as the maintenance of circadian rhythms, anti-inflammatory functions, and regulation of intestinal barriers. The regulatory functions of melatonin in gut microbiota remodeling have also been well clarified; however, the role of gut microbiota in regulating host melatonin production remains poorly understood. To address this, we studied the contribution of gut microbiota to host melatonin production using gut microbiota-perturbed models. We demonstrated that antibiotic-treated and germ-free mice possessed diminished melatonin levels in the serum and elevated melatonin levels in the colon. The influence of the intestinal microbiota on host melatonin production was further confirmed by fecal microbiota transplantation. Notably, Lactobacillus reuteri (L. R) and Escherichia coli (E. coli) recapitulated the effects of gut microbiota on host melatonin production. Mechanistically, L. R and E. coli activated the TLR2/4/MyD88/NF-κB signaling pathway to promote expression of arylalkylamine N-acetyltransferase (AANAT, a rate-limiting enzyme for melatonin production), and MyD88 deficiency in colonic epithelial cells abolished the influence of intestinal microbiota on colonic melatonin production. Collectively, we revealed a specific underlying mechanism of gut microbiota to modulate host melatonin production, which might provide novel therapeutic ideas for melatonin-related diseases.
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Affiliation(s)
- Bingnan Liu
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- National Center of Technology Innovation for Pigs, Chongqing, China
| | - Lijuan Fan
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- National Center of Technology Innovation for Pigs, Chongqing, China
| | - Youxia Wang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- National Center of Technology Innovation for Pigs, Chongqing, China
| | - Hao Wang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- National Center of Technology Innovation for Pigs, Chongqing, China
| | - Yuqi Yan
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Shuai Chen
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
| | - Ifen Hung
- Anyou Biotechnology Group Co. LTD, Taicang, China
- Joint Laboratory of Functional Nutrition and Animal Health, Centree Bio-tech (Wuhan) Co., LTD, Wuhan, China
| | - Chunxue Liu
- Anyou Biotechnology Group Co. LTD, Taicang, China
| | - Hong Wei
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction of the Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, China
| | - Liangpeng Ge
- National Center of Technology Innovation for Pigs, Chongqing, China
- Chongqing Academy of Animal Sciences, Key Laboratory of Pig Industry Science, Ministry of Agriculture, Chongqing, China
| | - Wenkai Ren
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- National Center of Technology Innovation for Pigs, Chongqing, China
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16
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Gan Z, Zhao M, Xia Y, Yan Y, Ren W. Carbon metabolism in the regulation of macrophage functions. Trends Endocrinol Metab 2024; 35:62-73. [PMID: 37778898 DOI: 10.1016/j.tem.2023.09.003] [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: 07/29/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 10/03/2023]
Abstract
Carbon metabolism, including one-carbon (1C) metabolism and central carbon metabolism (CCM), provides energy for the cell and generates metabolites with signaling activities. The regulation of macrophage polarization involves complex signals and includes an epigenetic level. Epigenetic modifications through changes in carbon metabolism allow macrophages to respond in a timely manner to their environment and adapt to metabolic demands during macrophage polarization. Here we summarize the current understanding of the crosstalk between carbon metabolism and epigenetic modifications in macrophages under physiological conditions and in the tumor microenvironment (TME) and provide targets and further directions for macrophage-associated diseases.
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Affiliation(s)
- Zhending Gan
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510000, Guangdong, China
| | - Muyang Zhao
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510000, Guangdong, China
| | - Yaoyao Xia
- Laboratory for Bio-feed and Molecular Nutrition, College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Yuqi Yan
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Wenkai Ren
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou 510000, Guangdong, China.
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17
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Qin W, Wang J, Hu Q, Qin R, Ma N, Zheng F, Tian W, Jiang J, Li T, Jin Y, Liao M, Qin A. Melatonin-pretreated human umbilical cord mesenchymal stem cells improved endometrium regeneration and fertility recovery through macrophage immunomodulation in rats with intrauterine adhesions†. Biol Reprod 2023; 109:918-937. [PMID: 37672216 DOI: 10.1093/biolre/ioad102] [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: 02/10/2023] [Revised: 06/22/2023] [Accepted: 08/22/2023] [Indexed: 09/07/2023] Open
Abstract
Intrauterine adhesions (IUA) are a common gynecological problem. Stem cell therapy has been widely used in the treatment of IUA. However, due to the complex and harsh microenvironment of the uterine cavity, the effectiveness of such therapy is greatly inhibited. This study aimed to investigate whether melatonin pretreatment enhances the efficacy of human umbilical cord mesenchymal stem cells (HucMSCs) in IUA treatment in rats. First, we explored the effect of melatonin on the biological activity of HucMSCs in vitro through a macrophage co-culture system, Cell Counting Kit 8 (CCK-8), 5-Ethynyl-2'-deoxyuridine (EdU), flow cytometry, immunofluorescence staining, and qRT-PCR. Subsequently, we established the IUA rat model and tracked the distribution of HucMSCs in this model. In addition, we observed the number of M1 and M2 macrophages through immunofluorescence staining and detected the levels of inflammatory cytokines. Four weeks after cell transplantation, HE, Masson, and immunohistochemical staining were performed. In vitro experiments showed that melatonin pretreatment of HucMSCs promoted proliferation, reduced apoptosis, up-regulated the stemness gene, and regulated macrophage polarization. In vivo, melatonin pretreatment caused more HucMSCs to remain in the uterine cavity. Melatonin-pretreated HucMSCs recruited more macrophages, regulated macrophage polarization, and reduced inflammation. Melatonin-pretreated HucMSCs relieved fibrosis, increased endometrium thickness, and up-regulated CD34, vimentin, proliferating cell nuclear antigen (PCNA), and alpha small muscle antigen (α-SMA) expression. Fertility tests showed that melatonin-pretreated HucMSCs increased the number of embryos. In summary, pretreatment with melatonin was beneficial for HucMSC treatment because it enhanced the cell's ability to recruit macrophages and regulate macrophage polarization, which led to the regeneration of the endometrium and improved pregnancy outcomes.
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Affiliation(s)
- Weili Qin
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jiawei Wang
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Reproductive and Genetic Hospital, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Qianwen Hu
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Rongyan Qin
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Nana Ma
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Fengque Zheng
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Wencai Tian
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jinghang Jiang
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ting Li
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yufu Jin
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ming Liao
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Aiping Qin
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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18
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Zhu G, Zhang R, Xie Q, Li P, Wang F, Wang L, Li C. Shish-kebab structure fiber with nano and micro diameter regulate macrophage polarization for anti-inflammatory and bone differentiation. Mater Today Bio 2023; 23:100880. [PMID: 38149017 PMCID: PMC10750111 DOI: 10.1016/j.mtbio.2023.100880] [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: 09/12/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 12/28/2023] Open
Abstract
Biopolymer grafts often have limited biocompatibility, triggering excessive inflammatory responses similar to foreign bodies. Macrophage phenotype shifts are pivotal in the inflammatory response and graft success. The effects of the morphology and physical attributes of the material itself on macrophage polarization should be the focus. In this study, we prepared electrospun fibers with diverse diameters and formed a shish-kebab (SK) structure on the material surface by solution-induced crystallization, forming electrospun fiber scaffolds with diverse pore sizes and roughness. In vitro cell culture experiments demonstrated that SK structure fibers could regulate macrophage differentiation toward M2 phenotype, and the results of in vitro simulation of in vivo tissue reconstruction by the microenvironment demonstrated that the paracrine role of M2 phenotype macrophages could promote bone marrow mesenchymal stem cells (BMSCs) to differentiate into osteoblasts. In rats implanted with a subcutaneous SK-structured fiber scaffold, the large-pore size and low-stiffness SK fiber scaffolds demonstrated superior immune performance, less macrophage aggregation, and easier differentiation to the anti-inflammatory M2 phenotype. Large pore sizes and low-stiffness SK fiber scaffolds guide the morphological design of biological scaffolds implanted in vivo, which is expected to be an effective strategy for reducing inflammation when applied to graft materials in clinical settings.
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Affiliation(s)
- Gaowei Zhu
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Rongyan Zhang
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Qianyang Xie
- Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, and Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, No. 639, Zhizaoju Rd., Shanghai, 200011, China
| | - Peilun Li
- Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, and Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, No. 639, Zhizaoju Rd., Shanghai, 200011, China
| | - Fujun Wang
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Lu Wang
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Chaojing Li
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
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19
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Zheng L, Zhou W, Wu Y, Xu W, Hu S, Zhang Y, Xu H, Deng H, Chen Y, Wu L, Wei J, Feng D, Wang M, Zhou H, Li Q, Zhu L, Yang H, Lv X. Melatonin Alleviates Acute Respiratory Distress Syndrome by Inhibiting Alveolar Macrophage NLRP3 Inflammasomes Through the ROS/HIF-1α/GLUT1 Pathway. J Transl Med 2023; 103:100266. [PMID: 37871834 DOI: 10.1016/j.labinv.2023.100266] [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: 04/14/2023] [Revised: 10/12/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023] Open
Abstract
Sepsis-induced acute respiratory distress syndrome (ARDS) is a devastating clinically severe respiratory disorder, and no effective therapy is available. Melatonin (MEL), an endogenous neurohormone, has shown great promise in alleviating sepsis-induced ARDS, but the underlying molecular mechanism remains unclear. Using a lipopolysaccharide (LPS)-treated mouse alveolar macrophage cell line (MH-S) model, we found that MEL significantly inhibited NOD-like receptor protein 3 (NLRP3) inflammasome activation in LPS-treated macrophages, whereas this inhibitory effect of MEL was weakened in MH-S cells transfected with glucose transporter 1 (GLUT1) overexpressing lentivirus. Further experiments showed that MEL downregulated GLUT1 via inhibition of hypoxia-inducible factor 1 (HIF-1α). Notably, hydrogen peroxide (H2O2), a donor of reactive oxygen species (ROS), significantly increased the level of intracellular ROS and inhibited the regulatory effect of MEL on the HIF-1α/GLUT1 pathway. Interestingly, the protective effect of MEL was attenuated after the knockdown of melatonin receptor 1A (MT1) in MH-S cells. We also confirmed in vivo that MEL effectively downregulated the HIF-1α/GLUT1/NLRP3 pathway in the lung tissue of LPS-treated mice, as well as significantly ameliorated LPS-induced lung injury and improved survival in mice. Collectively, these findings revealed that MEL regulates the activation of the ROS/HIF-1α/GLUT1/NLRP3 pathway in alveolar macrophages via the MT1 receptor, further alleviating sepsis-induced ARDS.
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Affiliation(s)
- Li Zheng
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wenyu Zhou
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yutong Wu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wenting Xu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Song Hu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yiguo Zhang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Huan Xu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Huimin Deng
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yuanli Chen
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lingmin Wu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Juan Wei
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Di Feng
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Mansi Wang
- Department of Pathology, Shanghai Cancer Center, Shanghai Medical College, Fudan University, Shanghai, China
| | - Huanping Zhou
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Quanfu Li
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lina Zhu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Hao Yang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Xin Lv
- Department of Anesthesiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China.
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20
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Zhang Q, Chen S, Guo Y, He F, Fu J, Ren W. Phenylalanine diminishes M1 macrophage inflammation. SCIENCE CHINA. LIFE SCIENCES 2023; 66:2862-2876. [PMID: 37243947 DOI: 10.1007/s11427-022-2296-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 02/17/2023] [Indexed: 05/29/2023]
Abstract
Emerging evidence suggests that amino acids dictate the effector functions of immune cells; however, whether and how phenylalanine (Phe) orchestrates the polarization of macrophages is not understood. Here, we determined that Phe attenuated lipopolysaccharide (LPS) and P. multocida serotype A strain CQ2 (PmCQ2) infection-induced inflammation in vivo. Furthermore, we demonstrated that Phe inhibited the production of interleukin (IL)-1β and tumor necrosis factor (TNF)-α in proinflammatory (M1) macrophages. Phe reprogrammed the transcriptomic and metabolic profiles and enhanced oxidative phosphorylation in M1 macrophages, which reduced the activation of caspase-1. Notably, the valine-succinyl-CoA axis played a critical role in Phe-mediated inhibition of IL-1β production in M1 macrophages. Taken together, our findings suggest that manipulating the valine-succinyl-CoA axis provides a potential target for preventing and/or treating macrophage-related diseases.
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Affiliation(s)
- Qingzhuo Zhang
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Siyuan Chen
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yan Guo
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Fang He
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
| | - Jian Fu
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Wenkai Ren
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China.
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21
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Wang X, Jiang W, Pan K, Tao L, Zhu Y. Melatonin induces RAW264.7 cell apoptosis via the BMAL1/ROS/MAPK-p38 pathway to improve postmenopausal osteoporosis. Bone Joint Res 2023; 12:677-690. [PMID: 37907083 PMCID: PMC10618049 DOI: 10.1302/2046-3758.1211.bjr-2022-0425.r3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2023] Open
Abstract
Aims Currently, the effect of drug treatment for osteoporosis is relatively poor, and the side effects are numerous and serious. Melatonin is a potential drug to improve bone mass in postmenopausal women. Unfortunately, the mechanism by which melatonin improves bone metabolism remains unclear. The aim of this study was to further investigate the potential mechanism of melatonin in the treatment of osteoporosis. Methods The effects of melatonin on mitochondrial apoptosis protein, bmal1 gene, and related pathway proteins of RAW264.7 (mouse mononuclear macrophage leukaemia cells) were analyzed by western blot. Cell Counting Kit-8 was used to evaluate the effect of melatonin on cell viability. Flow cytometry was used to evaluate the effect of melatonin on the apoptosis of RAW264.7 cells and mitochondrial membrane potential. A reactive oxygen species (ROS) detection kit was used to evaluate the level of ROS in osteoclast precursors. We used bmal1-small interfering RNAs (siRNAs) to downregulate the Bmal1 gene. We established a postmenopausal mouse model and verified the effect of melatonin on the bone mass of postmenopausal osteoporosis in mice via micro-CT. Bmal1 lentiviral activation particles were used to establish an in vitro model of overexpression of the bmal1 gene. Results Melatonin promoted apoptosis of RAW264.7 cells and increased the expression of BMAL1 to inhibit the activation of ROS and phosphorylation of mitogen-activated protein kinase (MAPK)-p38. Silencing the bmal1 gene weakened the above effects of melatonin. After that, we used dehydrocorydaline (DHC) to enhance the activation of MAPK-p38, and the effects of melatonin on reducing ROS levels and promoting apoptosis of RAW264.7 cells were also blocked. Then, we constructed a mouse model of postmenopausal osteoporosis and administered melatonin. The results showed that melatonin improves bone loss in ovariectomized mice. Finally, we established a model of overexpression of the bmal1 gene, and these results suggest that the bmal1 gene can regulate ROS activity and change the level of the MAPK-p38 signalling pathway. Conclusion Our study confirmed that melatonin promotes the apoptosis of RAW264.7 cells through BMAL1/ROS/MAPK-p38, and revealed the therapeutic effect and mechanism of melatonin in postmenopausal osteoporosis. This finding enriches BMAL1 as a potential target for the treatment of osteoporosis and the pathogenesis of postmenopausal osteoporosis.
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Affiliation(s)
- Xiaochuan Wang
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Wen Jiang
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Kexin Pan
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Lin Tao
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Yue Zhu
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
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22
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Pang Y, Zhu S, Xu J, Su C, Wu B, Zhang C, Gao J. Myeloid Cells As a Promising Target for Brain-Bone Degenerative Diseases from a Metabolic Point of View. Adv Biol (Weinh) 2023; 7:e2200321. [PMID: 36750967 DOI: 10.1002/adbi.202200321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/11/2023] [Indexed: 02/09/2023]
Abstract
Brain and bone degenerative diseases such as Alzheimer's disease and osteoporosis are common in the aging population and lack efficient pharmacotherapies. Myeloid cells are a diverse group of mononuclear cells that plays important roles in development, immune defense, and tissue homeostasis. Aging drastically alters the expansion and function of myeloid cells, which might be a common pathogenesis of the brain-bone degenerative diseases. From this perspective, the role of myeloid cells in brain-bone degenerative diseases is discussed, with a particular focus on metabolic alterations in myeloid cells. Furthermore, targeting myeloid cells through metabolic regulation via drugs such as metformin and melatonin is proposed as a potential therapy for the clinical treatment of brain-bone diseases.
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Affiliation(s)
- Yidan Pang
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.600, Yishan Road, Shanghai, Shanghai, 200233, China
| | - Siyuan Zhu
- Department of General Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.600, Yishan Road, Shanghai, Shanghai, 200233, China
| | - Jun Xu
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.600, Yishan Road, Shanghai, Shanghai, 200233, China
| | - Cuimin Su
- Jinjiang Municipal Hospital (Shanghai Sixth People's Hospital Fujian), No. 16, Luoshan Section, Jinguang Road, Luoshan Street, Jinjiang City, Quanzhou, Fujian, 362200, China
| | - Bo Wu
- Department of General Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.600, Yishan Road, Shanghai, Shanghai, 200233, China
| | - Changqing Zhang
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.600, Yishan Road, Shanghai, Shanghai, 200233, China
| | - Junjie Gao
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No.600, Yishan Road, Shanghai, Shanghai, 200233, China
- Jinjiang Municipal Hospital (Shanghai Sixth People's Hospital Fujian), No. 16, Luoshan Section, Jinguang Road, Luoshan Street, Jinjiang City, Quanzhou, Fujian, 362200, China
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23
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Awuah WA, Huang H, Kalmanovich J, Mehta A, Mikhailova T, Ng JC, Abdul-Rahman T, Adebusoye FT, Tan JK, Kamanousa K, Ferreira T, Roy S, Kundu M, Yarlagadda R, Mukerjee N, Alexiou A, Papadakis M. Circadian rhythm in systemic autoimmune conditions: Potential of chrono-immunology in clinical practice: A narrative review. Medicine (Baltimore) 2023; 102:e34614. [PMID: 37565922 PMCID: PMC10419593 DOI: 10.1097/md.0000000000034614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/14/2023] [Indexed: 08/12/2023] Open
Abstract
The circadian rhythm (CR) is a fundamental biological process regulated by the Earth's rotation and solar cycles. It plays a critical role in various bodily functions, and its dysregulation can have systemic effects. These effects impact metabolism, redox homeostasis, cell cycle regulation, gut microbiota, cognition, and immune response. Immune mediators, cycle proteins, and hormones exhibit circadian oscillations, supporting optimal immune function and defence against pathogens. Sleep deprivation and disruptions challenge the regulatory mechanisms, making immune responses vulnerable. Altered CR pathways have been implicated in diseases such as diabetes, neurological conditions, and systemic autoimmune diseases (SADs). SADs involve abnormal immune responses to self-antigens, with genetic and environmental factors disrupting self-tolerance and contributing to conditions like Systemic Lupus Erythematosus, Rheumatoid Arthritis, and Inflammatory Myositis. Dysregulated CR may lead to increased production of pro-inflammatory cytokines, contributing to the systemic responses observed in SADs. Sleep disturbances significantly impact the quality of life of patients with SADs; however, they are often overlooked. The relationship between sleep and autoimmune conditions, whether causal or consequential to CR dysregulation, remains unclear. Chrono-immunology investigates the role of CR in immunity, offering potential for targeted therapies in autoimmune conditions. This paper provides an overview of the connections between sleep and autoimmune conditions, highlighting the importance of recognizing sleep disturbances in SADs and the need for further research into the complex relationship between the CR and autoimmune diseases.
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Affiliation(s)
| | - Helen Huang
- Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
| | | | - Aashna Mehta
- University of Debrecen-Faculty of Medicine, Debrecen, Hungary
| | | | - Jyi Cheng Ng
- Faculty of Medicine and Health Sciences, University of Putra Malaysia, Serdang, Malaysia
| | | | | | | | | | - Tomas Ferreira
- School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Sakshi Roy
- School of Medicine, Queen’s University Belfast, Belfast, UK
| | - Mrinmoy Kundu
- Institute of Medical Sciences and SUM Hospital, Bhubaneswar, India
| | | | - Nobendu Mukerjee
- Department of Microbiology, West Bengal State University, Barasat, India
- Department of Health Sciences, Novel Global Community Educational Foundation, Hebersham, NSW
| | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, NSW
| | - Marios Papadakis
- Department of Surgery II, University Hospital Witten-Herdecke, Heusnerstrasse 40, University of Witten-Herdecke, Wuppertal, Germany
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24
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Silva KMR, França DCH, de Queiroz AA, Fagundes-Triches DLG, de Marchi PGF, Morais TC, Honorio-França AC, França EL. Polarization of Melatonin-Modulated Colostrum Macrophages in the Presence of Breast Tumor Cell Lines. Int J Mol Sci 2023; 24:12400. [PMID: 37569777 PMCID: PMC10419558 DOI: 10.3390/ijms241512400] [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: 06/28/2023] [Revised: 07/30/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Human colostrum and milk contain diverse cells and soluble components that have the potential to act against tumors. In breast cancer, macrophages play a significant role in immune infiltration and contribute to the progression and spread of tumors. However, studies suggest that these cells can be reprogrammed to act as an antitumor immune response. This study aimed to evaluate the levels of melatonin and its receptors, MT1 (melatonin receptor 1) and MT2 (melatonin receptor 2), in colostrum and assess the differentiation and polarization of the colostrum macrophages modulated by melatonin in the presence of breast tumor cells. Colostrum samples were collected from 116 mothers and tested for their melatonin and receptor levels. The colostrum cells were treated with or without melatonin and then cultured for 24 h in the presence or absence of breast tumor cells. The results showed that melatonin treatment increased the expression of MT1 and MT2 in the colostrum cells. Furthermore, melatonin treatment increased the percentage of M1 macrophages and decreased the percentage of M2 macrophages. When the colostrum macrophages were cocultured with breast tumor cells, melatonin reduced the percentage of both macrophage phenotypes and the cytokines tumor necrosis factor-alpha (TNF-α) and interleukin 8 (IL-8). These data suggest that melatonin can regulate the inflammatory process via M1 macrophages in the tumor microenvironment and, simultaneously, the progression of M2 macrophages that favor tumorigenesis.
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Affiliation(s)
- Kenia Maria Rezende Silva
- Postgraduate Program in Basic and Applied Immunology and Parasitology, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil (A.A.d.Q.); (D.L.G.F.-T.); (E.L.F.)
| | - Danielle Cristina Honório França
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil; (D.C.H.F.); (P.G.F.d.M.)
| | - Adriele Ataídes de Queiroz
- Postgraduate Program in Basic and Applied Immunology and Parasitology, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil (A.A.d.Q.); (D.L.G.F.-T.); (E.L.F.)
| | - Danny Laura Gomes Fagundes-Triches
- Postgraduate Program in Basic and Applied Immunology and Parasitology, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil (A.A.d.Q.); (D.L.G.F.-T.); (E.L.F.)
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil; (D.C.H.F.); (P.G.F.d.M.)
| | - Patrícia Gelli Feres de Marchi
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil; (D.C.H.F.); (P.G.F.d.M.)
| | - Tassiane Cristina Morais
- Postgraduate Program in Public Policies and Local Development, Escola Superior de Ciências da Santa Casa de Misericórdia de Vitória EMESCAM, Vitória 29045-402, ES, Brazil;
| | - Adenilda Cristina Honorio-França
- Postgraduate Program in Basic and Applied Immunology and Parasitology, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil (A.A.d.Q.); (D.L.G.F.-T.); (E.L.F.)
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil; (D.C.H.F.); (P.G.F.d.M.)
| | - Eduardo Luzía França
- Postgraduate Program in Basic and Applied Immunology and Parasitology, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil (A.A.d.Q.); (D.L.G.F.-T.); (E.L.F.)
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças 78600-000, MT, Brazil; (D.C.H.F.); (P.G.F.d.M.)
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25
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Sun J, Bian Y, Ma Y, Ali W, Wang T, Yuan Y, Gu J, Bian J, Liu Z, Zou H. Melatonin alleviates cadmium-induced nonalcoholic fatty liver disease in ducks by alleviating autophagic flow arrest via PPAR-α and reducing oxidative stress. Poult Sci 2023; 102:102835. [PMID: 37343350 PMCID: PMC10404762 DOI: 10.1016/j.psj.2023.102835] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/28/2023] [Accepted: 05/31/2023] [Indexed: 06/23/2023] Open
Abstract
Cadmium (Cd) is an important environmental pollutant that causes liver damage and induces nonalcoholic fatty liver disease (NAFLD). NAFLD is a fat accumulation disease and has significant effects on the body. Melatonin (Mel) is an endogenous protective molecule with antioxidant, anti-inflammatory, antiobesity, and antiaging effects. However, whether Mel can alleviate Cd-induced NAFLD and its mechanism remains unclear. First, in vivo, we found that Mel maintained mitochondrial structure and function, inhibited oxidative stress, and reduced Cd-induced liver injury. In addition, Mel alleviated lipid accumulation in the liver induced by Cd. In this process, Mel inhibits fatty acid production and promotes fatty acid oxidation. Interestingly, Mel regulated PPAR-α expression and alleviated Cd-induced autophagy blockade. In vitro model, the oil Red O staining, and WB results showed that Mel alleviated Cd-induced lipid accumulation. In addition, RAPA was used to activate autophagy to alleviate Cd-induced lipid accumulation, and TG was used to block autophagy flux to aggravate Cd-induced autophagy accumulation. After knocking down PPAR-α, the autophagosome fusion with lysosomes, and autophagic flux was inhibited and increased Cd-induced lipid accumulation. Mel alleviates mitochondrial damage and oxidative stress, and attenuates Cd-induced NAFLD by restoring the expression of PPAR-α and restoring autophagy flux.
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Affiliation(s)
- Jian Sun
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Yusheng Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Yonggang Ma
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Waseem Ali
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Tao Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Hui Zou
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.
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26
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Sun G, Wang Y, Yang L, Zhang Z, Zhao Y, Shen Z, Han X, Du X, Jin H, Li C, Wang S, Zhang Z, Zhang D. Rebalancing liver-infiltrating CCR3 + and CD206 + monocytes improves diet-induced NAFLD. Cell Rep 2023; 42:112753. [PMID: 37421620 DOI: 10.1016/j.celrep.2023.112753] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 05/17/2023] [Accepted: 06/21/2023] [Indexed: 07/10/2023] Open
Abstract
Melatonin has been reported to improve nonalcoholic fatty liver disease (NAFLD), and exploring the underlying mechanisms will be beneficial for better treatment of NAFLD. Choline-deficient high-fat diet (CDHFD)- and methionine/choline-deficient diet (MCD)-fed mice with melatonin intervention exhibit significantly decreased liver steatosis, lobular inflammation, and focal liver necrosis. Single-cell RNA sequencing reveals that melatonin selectively inhibits pro-inflammatory CCR3+ monocyte-derived macrophages (MoMFs) and upregulates anti-inflammatory CD206+ MoMFs in NAFLD mice. Liver-infiltrating CCR3+CD14+ MoMFs are also significantly increased in patients with NAFLD. Mechanistically, melatonin receptor-independent BTG2-ATF4 signaling plays a role in the regulation of CCR3+ MoMF endoplasmic reticulum stress, survival, and inflammation. In contrast, melatonin upregulates CD206+ MoMF survival and polarization via MT1/2 receptors. Melatonin stimulation also regulates human CCR3+ MoMF and CD206+ MoMF survival and inflammation in vitro. Furthermore, CCR3 depletion antibody monotherapy inhibits liver inflammation and improves NAFLD in mice. Thus, therapies targeting CCR3+ MoMFs may have potential benefits in NAFLD treatment.
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Affiliation(s)
- Guangyong Sun
- General Surgery Department, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing 100050, China; Beijing Clinical Research Institute, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China; Beijing Laboratory of Oral Health, Capital Medical University School of Basic Medicine, Beijing 100069, China
| | - Yaning Wang
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing 100050, China; Beijing Clinical Research Institute, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Lu Yang
- General Surgery Department, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Zihan Zhang
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing 100050, China; Beijing Clinical Research Institute, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China; Beijing Laboratory of Oral Health, Capital Medical University School of Basic Medicine, Beijing 100069, China
| | - Yushang Zhao
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing 100050, China; Beijing Clinical Research Institute, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China; Beijing Laboratory of Oral Health, Capital Medical University School of Basic Medicine, Beijing 100069, China
| | - Zongshan Shen
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Xiaotong Han
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing 100050, China; Beijing Clinical Research Institute, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China; Beijing Laboratory of Oral Health, Capital Medical University School of Basic Medicine, Beijing 100069, China
| | - Xiaonan Du
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing 100050, China; Beijing Clinical Research Institute, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China; Beijing Laboratory of Oral Health, Capital Medical University School of Basic Medicine, Beijing 100069, China
| | - Hua Jin
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing 100050, China; Beijing Clinical Research Institute, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China; Beijing Laboratory of Oral Health, Capital Medical University School of Basic Medicine, Beijing 100069, China
| | - Changying Li
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing 100050, China; Beijing Clinical Research Institute, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China; Beijing Laboratory of Oral Health, Capital Medical University School of Basic Medicine, Beijing 100069, China
| | - Songlin Wang
- Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Zhongtao Zhang
- General Surgery Department, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China
| | - Dong Zhang
- General Surgery Department, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing 100050, China; Beijing Clinical Research Institute, Beijing 100050, China; National Clinical Research Center for Digestive Diseases, Beijing 100050, China; Beijing Laboratory of Oral Health, Capital Medical University School of Basic Medicine, Beijing 100069, China.
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27
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Dou X, Luo Q, Xie L, Zhou X, Song C, Liu M, Liu X, Ma Y, Liu X. Medical Prospect of Melatonin in the Intervertebral Disc Degeneration through Inhibiting M1-Type Macrophage Polarization via SIRT1/Notch Signaling Pathway. Biomedicines 2023; 11:1615. [PMID: 37371708 DOI: 10.3390/biomedicines11061615] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
The study aims to explore the medical prospect of melatonin (MLT) and the underlying therapeutic mechanism of MLT-mediated macrophage (Mφ) polarization on the function of nucleus pulposus (NP) in intervertebral disc degeneration (IDD). RAW 264.7 Mφs were induced by lipopolysaccharide (LPS) to simulate Mφ polarization and the inflammatory reaction of Mφs with or without MLT were detected. Conditioned medium (CM) collected from these activated Mφs with or without MLT treatment were further used to incubate NP cells. The oxidative stress, inflammation and extracellular matrix (ECM) metabolism in NP cells were determined. Then, the changes in SIRT1/Notch signaling were detected. The agonist (SRT1720) and inhibitor (EX527) of SIRT1 were used to further explore the association among MLT. The interaction between SIRT1 and NICD was detected by immunoprecipitation (IP). Finally, puncture-induced rat IDD models were established and IDD degrees were clarified by X-ray, MRI, H&E staining and immunofluorescence (IF). The results of flow cytometry and inflammation detection indicated that LPS could induce M1-type Mφ polarization with pro-inflammatory properties. MLT significantly inhibited the aforementioned process and inhibited M1-type Mφ polarization, accompanied by the alleviation of inflammation. Compared with those without MLT, the levels of oxidative stress, pro-inflammatory cytokines and ECM catabolism in NP cells exposed to CM with MLT were markedly downregulated in a dose-dependent manner. The inhibition of SIRT1 and the enhancement of Notch were observed in activated Mφs and they can be reversed after MLT treatment. This prediction was further confirmed by using the SRT1720 and EX527 to activate or inhibit the signaling. The interaction between SIRT1 and NICD was verified by IP. In vivo study, the results of MRI, Pfirrmann grade scores and H&E staining demonstrated the degree of disc degeneration was significantly lower in the MLT-treated groups when compared with the IDD control group. The IF data showed M1-type Mφ polarization decreased after MLT treatment. MLT could inhibit M1-type Mφ polarization and ameliorate the NP cell injury caused by inflammation in vitro and vivo, which is of great significance for the remission of IDD. The SIRT1/Notch signaling pathway is a promising target for MLT to mediate Mφ polarization.
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Affiliation(s)
- Xinyu Dou
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - Qipeng Luo
- Pain Medical Center, Peking University Third Hospital, Beijing 100191, China
| | - Linzhen Xie
- Peking University Fourth School of Clinical Medicine, Beijing 100035, China
| | - Xuchang Zhou
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
| | - Chunyu Song
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
| | - Meijuan Liu
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Xiao Liu
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
| | - Yunlong Ma
- Pain Medical Center, Peking University Third Hospital, Beijing 100191, China
| | - Xiaoguang Liu
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China
- Beijing Key Laboratory of Spinal Disease Research, Beijing 100191, China
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing 100191, China
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Zhang T, Zhang L, Huang G, Hao X, Liu Z, Huo S. MEL regulates miR-21 and let-7b through the STAT3 cascade in the follicular granulosa cells of Tibetan sheep. Theriogenology 2023; 205:114-129. [PMID: 37120893 DOI: 10.1016/j.theriogenology.2023.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 03/21/2023] [Accepted: 04/10/2023] [Indexed: 05/02/2023]
Abstract
Under physiological and pathological conditions, melatonin (MEL) can regulate microRNA (miRNA) expression. However, the mechanisms underlying the regulatory effects of MEL on miRNAs in ovaries are not understood. Firstly, by using fluorescence in situ hybridisation, we found that in ovaries and follicular granulosa cells (FGCs), MT1 co-located with miR-21 and let-7b. Additionally, immunofluorescence revealed that MT1, STAT3, c-MYC and LIN28 proteins co-located. The mRNA and protein levels of STAT3, c-MYC and LIN28 increased under treatment with 10-7 M MEL. MEL induced an increase in miR-21 and a decrease in let-7b. The LIN28/let-7b and STAT3/miR-21 axes are related to cell differentiation, apoptosis and proliferation. We explored whether the STAT3/c-MYC/LIN28 pathway was involved in miRNA regulation by MEL to explore the putative mechanism of the above relationship. AG490, an inhibitor of the STAT3 pathway, was added before MEL treatment. AG490 inhibited the MEL-induced increases in STAT3, c-MYC, LIN28 and MT1 and changes in miRNA. Through live-cell detection, we discovered that MEL enhanced the proliferation of FGCs. However, the ki67 protein levels decreased when AG490 was added in advance. Furthermore, the dual-luciferase reporter assay verified that STAT3, LIN28 and MT1 were target genes of let-7b. Furthermore, STAT3 and SMAD7 were target genes of miR-21. In addition, the protein levels of the STAT3, c-MYC, LIN28 and MEL receptors decreased when let-7b was overexpressed in FGCs. Overall, MEL might regulate miRNA expression through the STAT3 pathway. In addition, a negative feedback loop between the STAT3 and miR-21 formed; MEL and let-7b antagonized each other in FGCs. These findings may provide a theoretical basis for improving the reproductive performance of Tibetan sheep through MEL and miRNAs.
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Affiliation(s)
- Taojie Zhang
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, Gansu, China.
| | - Lijuan Zhang
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, Gansu, China
| | - Guoliang Huang
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, Gansu, China
| | - Xiaomeng Hao
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, Gansu, China
| | - Zezheng Liu
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, Gansu, China
| | - Shengdong Huo
- Northwest Minzu University, Life Science and Engineering College, Lanzhou, Gansu, China.
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Wang K, Cai R, Fei S, Chen X, Feng S, Zhang L, Liu H, Zhang Z, Song J, Zhou R. Melatonin enhances anti-tumor immunity by targeting macrophages PD-L1 via exosomes derived from gastric cancer cells. Mol Cell Endocrinol 2023; 568-569:111917. [PMID: 37028587 DOI: 10.1016/j.mce.2023.111917] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 04/09/2023]
Abstract
Melatonin (MLT) is a hormone with potential anti-tumor properties, but the molecular mechanisms remain unclear. The present study aimed to explore the effect of MLT on exosomes derived from gastric cancer cells, with the goal of gaining insight into its anti-tumor activity. Results from in vitro experiments showed that MLT was able to enhance the anti-tumor activity of macrophages that had been suppressed by exosomes from gastric cancer cells. This effect was achieved through regulation of the levels of PD-L1 in macrophages via modulation of the associated microRNAs in the cancer-derived exosomes. Furthermore, MLT treatment increased the secretion of TNF-α and CXCL10 by the macrophages. Besides, MLT treatment of gastric cancer cells led to the production of exosomes that promoted the recruitment of CD8+ T cells to the tumor site, resulting in inhibition of tumor growth. Collectively, these results provide evidence for the modulation of the tumor immune microenvironment by MLT through regulation of exosomes derived from gastric cancer cells, suggesting a potential role for MLT in novel anti-tumor immunotherapies.
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Affiliation(s)
- Kaifang Wang
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China; School of Dentistry, Shenzhen University Medical School, Shenzhen, China; Department of Biology, Faculty of Science, Hong Kong Baptist University, Hongkong, China.
| | - Rong Cai
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
| | - Shuting Fei
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
| | - Xuzheng Chen
- Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
| | - Sisi Feng
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
| | - Lulu Zhang
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
| | - Hui Liu
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Zhiguang Zhang
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China
| | - Jun Song
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China.
| | - Ruixiang Zhou
- The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Key Laboratory of Gastrointestinal Cancer (Fujian Medical University), Ministry of Education, Fuzhou, China.
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Wang L, Wang C, Tao Z, Zhu W, Su Y, Choi WS. Tumor-associated macrophages facilitate oral squamous cell carcinomas migration and invasion by MIF/NLRP3/IL-1β circuit: A crosstalk interrupted by melatonin. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166695. [PMID: 36958712 DOI: 10.1016/j.bbadis.2023.166695] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 03/03/2023] [Accepted: 03/15/2023] [Indexed: 03/25/2023]
Abstract
Invasion and migration are significant challenges for treatment of oral squamous cell carcinomas (OSCCs). Tumor-associated macrophages (TAMs) interact with cancer cells and are involved in tumor progression. Our recent study demonstrated that melatonin inhibits OSCC invasion and migration; however, the mechanism by which melatonin influences crosstalk between TAMs and OSCCs is poorly understood. In this study, a co-culture system was established to explore the interactions between human monocytic cells (THP-1 cells) and human tongue squamous cell carcinoma cells (SCC-15 cells). The results were verified using monocyte-derived macrophages (MDMs) isolated and differentiated from primary peripheral blood mononuclear cells. In vivo, assays were performed to confirm the anticancer effects of melatonin. SCC-15 cells co-cultured with THP-1 cells or MDMs exhibited increased migration and invasion, which was reversed by melatonin. Co-culture also increased the expression of macrophage migration inhibitory factor (MIF), CD40, CD163 and IL-1β, and these changes were also reversed by melatonin. Moreover, IL-1β secretion in THP-1 cells was MIF- and NLR family pyrin domain-containing 3 (NLRP3)-dependent, and treated with IL-1β enhanced the invasion and migration of SCC-15 cells. Furthermore, melatonin treatment significantly decreased tumor volumes and weights, and tumors from mice treated with melatonin had lower levels of MIF, NLRP3, and IL-1β than tumor from control mice. These results demonstrate that macrophages facilitate the progression of OSCCs by promoting the MIF/NLRP3/IL-1β signaling axis, which can be interrupted by melatonin. Therefore, melatonin could act as an alternative anticancer agent for OSCCs by targeting this signaling axis.
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Affiliation(s)
- Leilei Wang
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Chuan Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) & Key Laboratory of Oral Biomedicine Ministry of Education (KLOBME), School & Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Periodontology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zhuoying Tao
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Wangyong Zhu
- Department of Dental Surgery, The University of Hong Kong-Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Yuxiong Su
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Wing Shan Choi
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong.
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Echinacea purpurea-derived homogeneous polysaccharide exerts anti-tumor efficacy via facilitating M1 macrophage polarization. Innovation (N Y) 2023; 4:100391. [PMID: 36873268 PMCID: PMC9974447 DOI: 10.1016/j.xinn.2023.100391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Echinacea purpurea modulates tumor progression, but the underlying mechanism is poorly defined. We isolated and purified a novel homogeneous polysaccharide from E. purpurea (EPPA), which was shown to be an arabinogalactan with a mean molecular mass (Mr) of 3.8 × 104 Da and with α- (1 → 5) -L-Arabinan as the backbone and α-L-Araf-(1→, →6)-β-D-Galp-(1→, and →4)-α-D-GalpA-(1→ as the side chains. Interestingly, oral administration of EPPA suppresses tumor progression in vivo and shapes the immune cell profile (e.g., facilitating M1 macrophages) in tumor microenvironment by single-cell RNA sequencing (scRNA-seq) analysis. More importantly, EPPA activates the inflammasome through a phagocytosis-dependent mechanism and rewires transcriptomic and metabolic profile, thereby potentiating M1 macrophage polarization. Collectively, we propose that EPPA supplementation could function as an adjuvant therapeutic strategy for tumor suppression.
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Wu D, Shi Y, Zhang H, Miao C. Epigenetic mechanisms of Immune remodeling in sepsis: targeting histone modification. Cell Death Dis 2023; 14:112. [PMID: 36774341 PMCID: PMC9922301 DOI: 10.1038/s41419-023-05656-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/13/2023]
Abstract
Sepsis is a life-threatening disorder disease defined as infection-induced dysregulated immune responses and multiple organ dysfunction. The imbalance between hyperinflammation and immunosuppression is a crucial feature of sepsis immunity. Epigenetic modifications, including histone modifications, DNA methylation, chromatin remodeling, and non-coding RNA, play essential roles in regulating sepsis immunity through epi-information independent of the DNA sequence. In recent years, the mechanisms of histone modification in sepsis have received increasing attention, with ongoing discoveries of novel types of histone modifications. Due to the capacity for prolonged effects on immune cells, histone modifications can induce immune cell reprogramming and participate in the long-term immunosuppressed state of sepsis. Herein, we systematically review current mechanisms of histone modifications involved in the regulation of sepsis, summarize their role in sepsis from an immune perspective and provide potential therapeutic opportunities targeting histone modifications in sepsis treatment.
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Affiliation(s)
- Dan Wu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yuxin Shi
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hao Zhang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China.
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai, China.
| | - Changhong Miao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China.
- Department of Anesthesiology, Shanghai Medical College, Fudan University, Shanghai, China.
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Yang L, Cheng J, Xu D, Zhang Z, Hua R, Chen H, Duan J, Li X, Li Q. Melatonin Ameliorates Diquat-Induced Testicular Toxicity via Reducing Oxidative Stress, Inhibiting Apoptosis, and Maintaining the Integrity of Blood-Testis Barrier in Mice. TOXICS 2023; 11:toxics11020160. [PMID: 36851035 PMCID: PMC9958747 DOI: 10.3390/toxics11020160] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 06/07/2023]
Abstract
Diquat is a fast, potent, and widely used bipyridine herbicide in agriculture and it induces oxidative stress in several animal models. However, its genotoxic effects on the male reproductive system remain unclear. Melatonin is an effective free-radical scavenger, which has antioxidant and anti-apoptotic properties and can protect the testes against oxidative damage. This study aimed to investigate the therapeutic effects of melatonin on diquat-induced testicular injury in mice. The results showed melatonin treatment alleviated diquat-induced testicular injury, including inhibited spermatogenesis, increased sperm malformations, declined testosterone level and decreased fertility. Specifically, melatonin therapy countered diquat-induced oxidative stress by increasing production of the antioxidant enzymes GPX1 and SOD1. Melatonin treatment also attenuated diquat-induced spermatogonia apoptosis in vivo and in vitro by modulating the expression of apoptosis-related proteins, including P53, Cleaved-Caspase3, and Bax/Bcl2. Moreover, melatonin restored the blood-testicular barrier by promoting the expression of Sertoli cell junction proteins and maintaining the ordered distribution of ZO-1. These findings indicate that melatonin protects the testes against diquat-induced damage by reducing oxidative stress, inhibiting apoptosis, and maintaining the integrity of the blood-testis barrier in mice. This study provides a theoretical basis for further research to protect male reproductive health from agricultural pesticides.
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Affiliation(s)
- Li Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Jianyong Cheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Dejun Xu
- Chongqing Key Laboratory of Herbivore Science, College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Zelin Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Rongmao Hua
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518000, China
| | - Huali Chen
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621000, China
| | - Jiaxin Duan
- College of Animal Science, Shanxi Agricultural University, Taiyuan 030801, China
| | - Xiaoya Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Qingwang Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
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Xia Y, Ding X, Wang S, Ren W. Circadian orchestration of host and gut microbiota in infection. Biol Rev Camb Philos Soc 2023; 98:115-131. [PMID: 36106627 DOI: 10.1111/brv.12898] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 01/12/2023]
Abstract
Circadian rhythms are present in almost every organism and regulate multiple aspects of biological and physiological processes (e.g. metabolism, immune responses, and microbial exposure). There exists a bidirectional circadian interaction between the host and its gut microbiota, and potential circadian orchestration of both host and gut microbiota in response to invading pathogens. In this review, we summarize what is known about these intestinal microbial oscillations and the relationships between host circadian clocks and various infectious agents (bacteria, fungi, parasites, and viruses), and discuss how host circadian clocks prime the immune system to fight pathogen infections as well as the direct effects of circadian clocks on viral activity (e.g. SARS-CoV-2 entry and replication). Finally, we consider strategies employed to realign normal circadian rhythmicity for host health, such as chronotherapy, dietary intervention, good sleep hygiene, and gut microbiota-targeted therapy. We propose that targeting circadian rhythmicity may provide therapeutic opportunities for the treatment of infectious diseases.
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Affiliation(s)
- Yaoyao Xia
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, 730050, China.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Xuezhi Ding
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, 730050, China
| | - Shengyi Wang
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, 730050, China
| | - Wenkai Ren
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
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Liu Y, Wang D, Li T, Xu L, Li Z, Bai X, Tang M, Wang Y. Melatonin: A potential adjuvant therapy for septic myopathy. Biomed Pharmacother 2023; 158:114209. [PMID: 36916434 DOI: 10.1016/j.biopha.2022.114209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/24/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Septic myopathy, also known as ICU acquired weakness (ICU-AW), is a characteristic clinical symptom of patients with sepsis, mainly manifested as skeletal muscle weakness and muscular atrophy, which affects the respiratory and motor systems of patients, reduces the quality of life, and even threatens the survival of patients. Melatonin is one of the hormones secreted by the pineal gland. Previous studies have found that melatonin has anti-inflammatory, free radical scavenging, antioxidant stress, autophagic lysosome regulation, mitochondrial protection, and other multiple biological functions and plays a protective role in sepsis-related multiple organ dysfunction. Given the results of previous studies, we believe that melatonin may play an excellent regulatory role in the repair and regeneration of skeletal muscle atrophy in septic myopathy. Melatonin, as an over-the-counter drug, has the potential to be an early, complementary treatment for clinical trials. Based on previous research results, this article aims to critically discuss and review the effects of melatonin on sepsis and skeletal muscle depletion.
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Affiliation(s)
- Yukun Liu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Dongfang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Tianyu Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Ligang Xu
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Zhanfei Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Xiangjun Bai
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Manli Tang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China.
| | - Yuchang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China.
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Chen Z, Zhai J, Ma J, Chen P, Lin W, Zhang W, Xiong J, Zhang C, Wei H. Melatonin-Primed Mesenchymal Stem Cells-Derived Small Extracellular Vesicles Alleviated Neurogenic Erectile Dysfunction by Reversing Phenotypic Modulation. Adv Healthc Mater 2023; 12:e2203087. [PMID: 36652551 DOI: 10.1002/adhm.202203087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/10/2023] [Indexed: 01/19/2023]
Abstract
Erectile dysfunction (ED) is an adverse side effect of pelvic surgery with no effective treatment. In this study, it is explored whether melatonin could improve the therapeutic effects of small extracellular vesicles (sEVs), derived from mesenchymal stem cells (MSCs), on cavernous nerve injury (CNI) ED, and the underlying mechanisms are investigated. The sEVs from melatonin-pretreated MSCs (MT-EVs) and MSCs (NC-EVs) are isolated and applied to CNI ED. Transplantation of MT-EVs remarkably increases erectile function and reduces phenotypic modulation in CNI ED rats. The therapeutic effects of MT-EVs are superior to those of NC-EVs. Sequencing implies that miR-10a-3p is enriched in MT-EVs, and directly targets the protein kinase inhibitor α (PKIA). After the suppression of miR-10a-3p, the therapeutic actions of MT-EVs are abolished, but are rescued by PKIA. Similarly, RhoA/ROCK is inhibited by MT-EVs, but this action is reversed by suppressing miR-10a-3p, accompanied by corresponding changes in PKIA. In conclusion, transplantation of MT-EVs could significantly alleviate CNI ED. MT-EVs may relieve the phenotypic modulation of the corpora cavernosum smooth muscle cells via the miR-10a-3p/PKIA/RhoA/ROCK signaling axis. These nanovesicles should be potential therapeutic vectors or bioactive materials for CNI ED.
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Affiliation(s)
- Zehong Chen
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Jiancheng Zhai
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Jiahui Ma
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Peng Chen
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Weishun Lin
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Weipeng Zhang
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Jiaming Xiong
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Chaowei Zhang
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Hongbo Wei
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
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Dang J, Yu Z, Wang T, Jiao Y, Wang K, Dou W, Yi C, Song B. Effects of Melatonin on Fat Graft Retention Through Browning of Adipose Tissue and Alternative Macrophage Polarization. Aesthetic Plast Surg 2023:10.1007/s00266-022-03242-6. [PMID: 36633654 DOI: 10.1007/s00266-022-03242-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/18/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND Melatonin is a widely used drug that can affect adipocyte inflammation, resulting in adipose tissue browning. Inducing the browning of white fat and changing the inflammatory microenvironment of early transplanted fat have positive effects on the retention rate of fat grafts. This study aimed to evaluate the effects of melatonin on fat graft retention, determine whether it is related to adipose tissue browning and the inflammatory microenvironment, and explore the underlying mechanisms. METHODS A C57BL/6 mice fat transplantation model was established. The mice were divided into a control group (ethanol), a high-dose group (40 mg/kg/day melatonin), a medium-dose group (20 mg/kg/day melatonin), and a low-dose group (10 mg/kg/day melatonin). They were also given oral gavage treatment for 2 weeks. The grafted fat was collected 2, 4, and 12 weeks after treatment. RESULTS The medium-dose and high-dose melatonin groups had significantly higher fat graft retention rates than the control group at 12 weeks. The medium-dose melatonin group had smaller multilocular adipocytes, which enhanced the expression of uncoupling protein 1 and increased neovascularization in the grafted fat. The medium-dose group also had a higher distribution of M2 macrophages. CONCLUSIONS These findings suggest that melatonin administration can improve the retention of fat grafts through polarization of macrophages toward the anti-inflammatory type and induction of adipose tissue browning. NO LEVEL ASSIGNED This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Juanli Dang
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhou Yu
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Tong Wang
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yan Jiao
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Kai Wang
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Wenjie Dou
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Chenggang Yi
- Department of Plastic Surgery, Medical School, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China.
| | - Baoqiang Song
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
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Hirayama J, Hattori A, Takahashi A, Furusawa Y, Tabuchi Y, Shibata M, Nagamatsu A, Yano S, Maruyama Y, Matsubara H, Sekiguchi T, Suzuki N. Physiological consequences of space flight, including abnormal bone metabolism, space radiation injury, and circadian clock dysregulation: Implications of melatonin use and regulation as a countermeasure. J Pineal Res 2023; 74:e12834. [PMID: 36203395 DOI: 10.1111/jpi.12834] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/03/2022] [Accepted: 10/04/2022] [Indexed: 12/15/2022]
Abstract
Exposure to the space environment induces a number of pathophysiological outcomes in astronauts, including bone demineralization, sleep disorders, circadian clock dysregulation, cardiovascular and metabolic dysfunction, and reduced immune system function. A recent report describing experiments aboard the Space Shuttle mission, STS-132, showed that the level of melatonin, a hormone that provides the biochemical signal of darkness, was decreased during microgravity in an in vitro culture model. Additionally, abnormal lighting conditions in outer space, such as low light intensity in orbital spacecraft and the altered 24-h light-dark cycles, may result in the dysregulation of melatonin rhythms and the misalignment of the circadian clock from sleep and work schedules in astronauts. Studies on Earth have demonstrated that melatonin regulates various physiological functions including bone metabolism. These data suggest that the abnormal regulation of melatonin in outer space may contribute to pathophysiological conditions of astronauts. In addition, experiments with high-linear energy transfer radiation, a ground-based model of space radiation, showed that melatonin may serve as a protectant against space radiation. Gene expression profiling using an in vitro culture model exposed to space flight during the STS-132 mission, showed that space radiation alters the expression of DNA repair and oxidative stress response genes, indicating that melatonin counteracts the expression of these genes responsive to space radiation to promote cell survival. These findings implicate the use of exogenous melatonin and the regulation of endogenous melatonin as countermeasures for the physiological consequences of space flight.
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Affiliation(s)
- Jun Hirayama
- Department of Clinical Engineering, Faculty of Health Sciences & Division of Health Sciences, Graduate School of Sustainable Systems Science, Komatsu University, Komatsu, Japan
| | - Atsuhiko Hattori
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Japan
| | | | - Yukihiro Furusawa
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Yoshiaki Tabuchi
- Life Science Research Center, University of Toyama, Toyama, Japan
| | - Masahiro Shibata
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Japan
| | | | - Sachiko Yano
- Japan Aerospace Exploration Agency, Tsukuba, Japan
| | - Yusuke Maruyama
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Japan
| | - Hajime Matsubara
- Noto Center for Fisheries Science and Technology, Kanazawa University, Noto-cho, Ishikawa, Japan
| | - Toshio Sekiguchi
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Noto-cho, Japan
| | - Nobuo Suzuki
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Noto-cho, Japan
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Mihanfar A, Yousefi B, Azizzadeh B, Majidinia M. Interactions of melatonin with various signaling pathways: implications for cancer therapy. Cancer Cell Int 2022; 22:420. [PMID: 36581900 PMCID: PMC9798601 DOI: 10.1186/s12935-022-02825-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 12/06/2022] [Indexed: 12/30/2022] Open
Abstract
Melatonin is a neuro-hormone with conserved roles in evolution. Initially synthetized as an antioxidant molecule, it has gained prominence as a key molecule in the regulation of the circadian rhythm. Melatonin exerts its effect by binding to cytoplasmic and intra-nuclear receptors, and is able to regulate the expression of key mediators of different signaling pathways. This ability has led scholars to investigate the role of melatonin in reversing the process of carcinogenesis, a process in which many signaling pathways are involved, and regulating these pathways may be of clinical significance. In this review, the role of melatonin in regulating multiple signaling pathways with important roles in cancer progression is discussed, and evidence regarding the beneficence of targeting malignancies with this approach is presented.
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Affiliation(s)
- Ainaz Mihanfar
- grid.412763.50000 0004 0442 8645Solid Tumor Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Bahman Yousefi
- grid.412888.f0000 0001 2174 8913Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bita Azizzadeh
- grid.449129.30000 0004 0611 9408Department of Biochemistry, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Maryam Majidinia
- grid.412763.50000 0004 0442 8645Solid Tumor Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
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CXCL9 influences the tumor immune microenvironment by stimulating JAK/STAT pathway in triple-negative breast cancer. Cancer Immunol Immunother 2022; 72:1479-1492. [DOI: 10.1007/s00262-022-03343-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/26/2022] [Indexed: 12/13/2022]
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Fu J, Han Z, Wu Z, Xia Y, Yang G, Yin Y, Ren W. GABA regulates IL-1β production in macrophages. Cell Rep 2022; 41:111770. [PMID: 36476877 DOI: 10.1016/j.celrep.2022.111770] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/31/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022] Open
Abstract
Neurotransmitters have been well documented to determine immune cell fates; however, whether and how γ-amino butyric acid (GABA) shapes the function of innate immune cells is still obscure. Here, we demonstrate that GABA orchestrates macrophage maturation and inflammation. GABA treatment during macrophage maturation inhibits interleukin (IL)-1β production from inflammatory macrophages. Mechanistically, GABA enhances succinate-flavin adenine dinucleotide (FAD)-lysine specific demethylase1 (LSD1) signaling to regulate histone demethylation of Bcl2l11 and Dusp2, reducing formation of the NLRP3-ASC-Caspase-1 complex. The GABA-succinate axis reduces succinylation of mitochondrial proteins to promote oxidative phosphorylation (OXPHOS). We also find that GABA alleviates lipopolysaccharides (LPS)-induced sepsis as well as high-fat-diet-induced obesity in mice. Our study shows that GABA regulates pro-inflammatory macrophage responses associated with metabolic reprogramming and protein succinylation, suggesting a strategy for treating macrophage-related inflammatory diseases.
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Affiliation(s)
- Jian Fu
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Ziyi Han
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Zebiao Wu
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yaoyao Xia
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Guan Yang
- Department of Infectious Diseases and Public Health, City University of Hong Kong, Hong Kong SAR 999077, China
| | - Yulong Yin
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China; Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China.
| | - Wenkai Ren
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou 510642, China.
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Su S, Zhao Q, Dan L, Lin Y, Li X, Zhang Y, Yang C, Dong Y, Li X, Regazzi R, Sun C, Chu X, Lu H. Inhibition of miR-146a-5p and miR-8114 in Insulin-Secreting Cells Contributes to the Protection of Melatonin against Stearic Acid-Induced Cellular Senescence by Targeting Mafa. Endocrinol Metab (Seoul) 2022; 37:901-917. [PMID: 36475359 PMCID: PMC9816504 DOI: 10.3803/enm.2022.1565] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/06/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGRUOUND Chronic exposure to elevated levels of saturated fatty acids results in pancreatic β-cell senescence. However, targets and effective agents for preventing stearic acid-induced β-cell senescence are still lacking. Although melatonin administration can protect β-cells against lipotoxicity through anti-senescence processes, the precise underlying mechanisms still need to be explored. Therefore, we investigated the anti-senescence effect of melatonin on stearic acid-treated mouse β-cells and elucidated the possible role of microRNAs in this process. METHODS β-Cell senescence was identified by measuring the expression of senescence-related genes and senescence-associated β-galactosidase staining. Gain- and loss-of-function approaches were used to investigate the involvement of microRNAs in stearic acid-evoked β-cell senescence and dysfunction. Bioinformatics analyses and luciferase reporter activity assays were applied to predict the direct targets of microRNAs. RESULTS Long-term exposure to a high concentration of stearic acid-induced senescence and upregulated miR-146a-5p and miR- 8114 expression in both mouse islets and β-TC6 cell lines. Melatonin effectively suppressed this process and reduced the levels of these two miRNAs. A remarkable reversibility of stearic acid-induced β-cell senescence and dysfunction was observed after silencing miR-146a-5p and miR-8114. Moreover, V-maf musculoaponeurotic fibrosarcoma oncogene homolog A (Mafa) was verified as a direct target of miR-146a-5p and miR-8114. Melatonin also significantly ameliorated senescence and dysfunction in miR-146a-5pand miR-8114-transfected β-cells. CONCLUSION These data demonstrate that melatonin protects against stearic acid-induced β-cell senescence by inhibiting miR-146a- 5p and miR-8114 and upregulating Mafa expression. This not only provides novel targets for preventing stearic acid-induced β-cell dysfunction, but also points to melatonin as a promising drug to combat type 2 diabetes progression.
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Affiliation(s)
- Shenghan Su
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Qingrui Zhao
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Lingfeng Dan
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Yuqing Lin
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Xuebei Li
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Yunjin Zhang
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Chunxiao Yang
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Yimeng Dong
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Xiaohan Li
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Romano Regazzi
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland
- Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Changhao Sun
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Xia Chu
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
| | - Huimin Lu
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, China
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland
- Corresponding author: Huimin Lu. Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin 150081, China Tel: +86-451-87502837, Fax: +86-451-87502885, E-mail:
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Xu MM, Kang JY, Ji S, Wei YY, Wei SL, Ye JJ, Wang YG, Shen JL, Wu HM, Fei GH. Melatonin Suppresses Macrophage M1 Polarization and ROS-Mediated Pyroptosis via Activating ApoE/LDLR Pathway in Influenza A-Induced Acute Lung Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2520348. [PMID: 36425057 PMCID: PMC9681554 DOI: 10.1155/2022/2520348] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/07/2022] [Indexed: 11/17/2023]
Abstract
Influenza virus infection is one of the strongest pathogenic factors for the development of acute lung injury (ALI)/ acute respiratory distress syndrome (ARDS). However, the underlying cellular and molecular mechanisms have not been clarified. In this study, we aim to investigate whether melatonin modulates macrophage polarization, oxidative stress, and pyroptosis via activating Apolipoprotein E/low-density lipoprotein receptor (ApoE/LDLR) pathway in influenza A-induced ALI. Here, wild-type (WT) and ApoE-/- mice were instilled intratracheally with influenza A (H3N2) and injected intraperitoneally with melatonin for 7 consecutive days. In vitro, WT and ApoE-/- murine bone marrow-derived macrophages (BMDMs) were pretreated with melatonin before H3N2 stimulation. The results showed that melatonin administration significantly attenuated H3N2-induced pulmonary damage, leukocyte infiltration, and edema; decreased the expression of proinflammatory M1 markers; enhanced anti-inflammatory M2 markers; and switched the polarization of alveolar macrophages (AMs) from M1 to M2 phenotype. Additionally, melatonin inhibited reactive oxygen species- (ROS-) mediated pyroptosis shown by downregulation of malonaldehyde (MDA) and ROS levels as well as inhibition of the NLRP3/GSDMD pathway and lactate dehydrogenase (LDH) release. Strikingly, the ApoE/LDLR pathway was activated when melatonin was applied in H3N2-infected macrophages and mice. ApoE knockout mostly abrogated the protective impacts of melatonin on H3N2-induced ALI and its regulatory ability on macrophage polarization, oxidative stress, and pyroptosis. Furthermore, recombinant ApoE3 (re-ApoE3) inhibited H3N2-induced M1 polarization of BMDMs with upregulation of MT1 and MT2 expression, but re-ApoE2 and re-ApoE4 failed to do this. Melatonin combined with re-ApoE3 played more beneficial protective effects on modulating macrophage polarization, oxidative stress, and pyroptosis in H3N2-infected ApoE-/- BMDMs. Our study indicated that melatonin attenuated influenza A- (H3N2-) induced ALI by inhibiting the M1 polarization of pulmonary macrophages and ROS-mediated pyroptosis via activating the ApoE/LDLR pathway. This study suggested that melatonin-ApoE/LDLR axis may serve as a novel therapeutic strategy for influenza virus-induced ALI.
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Affiliation(s)
- Meng-Meng Xu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
| | - Jia-Ying Kang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
| | - Shuang Ji
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
| | - Yuan-Yuan Wei
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
| | - Si-Liang Wei
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
| | - Jing-Jing Ye
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
| | - Yue-Guo Wang
- Department of Emergency Critical Care Medicine, First Affiliated Hospital of Anhui Provincial Hospital, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230001 Anhui, China
| | - Ji-Long Shen
- Provincial Laboratory of Microbiology and Parasitology of Anhui Medical University, Hefei, 230022 Anhui, China
| | - Hui-Mei Wu
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
- Anhui Geriatric Institute, Department of Geriatric Respiratory Critical and Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
| | - Guang-He Fei
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
- Key Laboratory of Respiratory Disease Research and Medical Transformation of Anhui Province, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022 Anhui, China
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Impact of Melatonin on RAW264.7 Macrophages during Mechanical Strain. Int J Mol Sci 2022; 23:ijms232113397. [DOI: 10.3390/ijms232113397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022] Open
Abstract
The concentration of melatonin is elevated during the night when patients mainly wear removable orthodontic appliances. Next to periodontal ligament fibroblasts and osteoblasts, macrophages react to mechanical strain with an increased expression of inflammatory mediators. Here, we investigated the impact of melatonin on RAW264.7 macrophages exposed to tensile or compressive strain occurring during orthodontic tooth movement in the periodontal ligament. Before exposure to mechanical strain for 4 h, macrophages were pre-incubated with different melatonin concentrations for 24 h, to determine the dependence of melatonin concentration. Afterwards, we performed experiments with and without mechanical strain, the most effective melatonin concentration (25 µM), and the melatonin receptor 2 (MT2) specific antagonist 4P-PDOT. The expression of inflammatory genes and proteins was investigated by RT-qPCR, ELISAs, and immunoblot. Both tensile and compressive strain increased the expression of the investigated inflammatory factors interleukin-1-beta, interleukin-6, tumor necrosis factor alpha, and prostaglandin endoperoxide synthase-2. This effect was inhibited by the addition of melatonin. Incubation with 4P-PDOT blocked this anti-inflammatory effect of melatonin. Melatonin had an anti-inflammatory effect on macrophages exposed to mechanical strain, independent of the type of mechanical strain. As inhibition was possible with 4P-PDOT, the MT2 receptor might be involved in the regulation of the observed effects.
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Melatonin suppresses the antiviral immune response to EMCV infection through intracellular ATP deprivation caused by mitochondrial fragmentation. Heliyon 2022; 8:e11149. [PMID: 36303911 PMCID: PMC9593192 DOI: 10.1016/j.heliyon.2022.e11149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/28/2022] [Accepted: 10/13/2022] [Indexed: 11/05/2022] Open
Abstract
Melatonin, a sleep hormone derived from the pineal gland, has an anti-inflammatory effect on the immune system in addition to modulating the brain nervous system. Previous studies have shown that melatonin suppresses signaling pathways downstream of multiple pattern recognition receptors on the innate immune cells during pathogen infection, but the specific mechanism of suppression has not been well understood. Using an encephalomyocarditis virus (EMCV) infection model in macrophages, we investigated the effects of melatonin on the antiviral response in innate immunity and found that melatonin attenuated the uptake of viral particles into macrophages. Furthermore, melatonin suppressed cytoskeletal regulation by decreasing ATP production by mitochondria. Finally, in an in vivo infection experiment, we also found that melatonin administration partially exacerbated the infection in the mouse brain. These results suggest that melatonin may have an inhibitory effect on excessive inflammation by suppressing cytoskeletal regulation in the innate immune system, but also suggest that suppression of inflammation may lead to insufficient protection against EMCV infection in vivo.
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Hardeland R. Redox Biology of Melatonin: Discriminating Between Circadian and Noncircadian Functions. Antioxid Redox Signal 2022; 37:704-725. [PMID: 35018802 PMCID: PMC9587799 DOI: 10.1089/ars.2021.0275] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 12/31/2021] [Indexed: 12/15/2022]
Abstract
Melatonin has not only to be seen as a regulator of circadian clocks. In addition to its chronobiotic functions, it displays other actions, especially in cell protection. This includes antioxidant, anti-inflammatory, and mitochondria-protecting effects. Although protection is also modulated by the circadian system, the respective actions of melatonin can be distinguished and differ with regard to dose requirements in therapeutic settings. It is the aim of this article to outline these differences in terms of function, signaling, and dosage. Focus has been placed on both the nexus and the dissecting properties between circadian and noncircadian mechanisms. This has to consider details beyond the classic view of melatonin's role, such as widespread synthesis in extrapineal tissues, formation in mitochondria, effects on the mitochondrial permeability transition pore, and secondary signaling, for example, via upregulation of sirtuins and by regulating noncoding RNAs, especially microRNAs. The relevance of these findings, the differences and connections between circadian and noncircadian functions of melatonin shed light on the regulation of inflammation, including macrophage/microglia polarization, damage-associated molecular patterns, avoidance of cytokine storms, and mitochondrial functions, with numerous consequences to antioxidative protection, that is, aspects of high actuality with regard to deadly viral and bacterial diseases. Antioxid. Redox Signal. 37, 704-725.
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Affiliation(s)
- Rüdiger Hardeland
- Johann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Goettingen, Goettingen, Germany
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Zhou Z, Wang R, Wang J, Hao Y, Xie Q, Wang L, Wang X. Melatonin pretreatment on exosomes: Heterogeneity, therapeutic effects, and usage. Front Immunol 2022; 13:933736. [PMID: 36189281 PMCID: PMC9524263 DOI: 10.3389/fimmu.2022.933736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
The therapeutic outcomes of exosome-based therapies have greatly exceeded initial expectations in many clinically intractable diseases due to the safety, low toxicity, and immunogenicity of exosomes, but the production of the exosomes is a bottleneck for wide use. To increase the yield of the exosomes, various solutions have been tried, such as hypoxia, extracellular acidic pH, etc. With a limited number of cells or exosomes, an alternative approach has been developed to improve the efficacy of exosomes through cell pretreatment recently. Melatonin is synthesized from tryptophan and secreted in the pineal gland, presenting a protective effect in pathological conditions. As a new pretreatment method, melatonin can effectively enhance the antioxidant, anti-inflammatory, and anti-apoptotic function of exosomes in chronic kidney disease, diabetic wound healing, and ischemia-reperfusion treatments. However, the current use of melatonin pretreatment varies widely. Here, we discuss the effects of melatonin pretreatment on the heterogeneity of exosomes based on the role of melatonin and further speculate on the possible mechanisms. Finally, the therapeutic use of exosomes and the usage of melatonin pretreatment are described.
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Affiliation(s)
- Zilan Zhou
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Ruiping Wang
- Science and Technology Information and Strategy Research Center of Shanxi, Taiyuan, China
| | - Jie Wang
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Yujia Hao
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Qingpeng Xie
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
| | - Lu Wang
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
- *Correspondence: Xing Wang, ; Lu Wang,
| | - Xing Wang
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, China
- *Correspondence: Xing Wang, ; Lu Wang,
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Wang L, He C. Nrf2-mediated anti-inflammatory polarization of macrophages as therapeutic targets for osteoarthritis. Front Immunol 2022; 13:967193. [PMID: 36032081 PMCID: PMC9411667 DOI: 10.3389/fimmu.2022.967193] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 07/27/2022] [Indexed: 12/14/2022] Open
Abstract
Macrophages are the most abundant immune cells within the synovial joints, and also the main innate immune effector cells triggering the initial inflammatory responses in the pathological process of osteoarthritis (OA). The transition of synovial macrophages between pro-inflammatory and anti-inflammatory phenotypes can play a key role in building the intra-articular microenvironment. The pro-inflammatory cascade induced by TNF-α, IL-1β, and IL-6 is closely related to M1 macrophages, resulting in the production of pro-chondrolytic mediators. However, IL-10, IL1RA, CCL-18, IGF, and TGF are closely related to M2 macrophages, leading to the protection of cartilage and the promoted regeneration. The inhibition of NF-κB signaling pathway is central in OA treatment via controlling inflammatory responses in macrophages, while the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway appears not to attract widespread attention in the field. Nrf2 is a transcription factor encoding a large number of antioxidant enzymes. The activation of Nrf2 can have antioxidant and anti-inflammatory effects, which can also have complex crosstalk with NF-κB signaling pathway. The activation of Nrf2 can inhibit the M1 polarization and promote the M2 polarization through potential signaling transductions including TGF-β/SMAD, TLR/NF-κB, and JAK/STAT signaling pathways, with the regulation or cooperation of Notch, NLRP3, PI3K/Akt, and MAPK signaling. And the expression of heme oxygenase-1 (HO-1) and the negative regulation of Nrf2 for NF-κB can be the main mechanisms for promotion. Furthermore, the candidates of OA treatment by activating Nrf2 to promote M2 phenotype macrophages in OA are also reviewed in this work, such as itaconate and fumarate derivatives, curcumin, quercetin, melatonin, mesenchymal stem cells, and low-intensity pulsed ultrasound.
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Affiliation(s)
- Lin Wang
- Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China,Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Chengqi He
- Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China,Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China,*Correspondence: Chengqi He,
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Melatonin shapes bacterial clearance function of porcine macrophages during enterotoxigenic Escherichia coli infection. ANIMAL NUTRITION 2022; 11:242-251. [PMID: 36263406 PMCID: PMC9556787 DOI: 10.1016/j.aninu.2022.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/28/2022] [Accepted: 06/20/2022] [Indexed: 11/22/2022]
Abstract
Due to the immature gastrointestinal immune system, weaning piglets are highly susceptible to pathogens, e.g., enterotoxigenic Escherichia coli (ETEC). Generally, pathogens activate the immune cells (e.g., macrophages) and shape intracellular metabolism (including amino acid metabolism); nevertheless, the metabolic cues of tryptophan (especially melatonin pathway) in directing porcine macrophage function during ETEC infection remain unclear. Therefore, this study aimed to investigate the changes in the serotonin pathway of porcine macrophages during ETEC infection and the effect of melatonin on porcine macrophage functions. Porcine macrophages (3D4/21 cells) were infected with ETEC, and the change of serotonin pathway was analysed by reverse transcription PCR and metabolomic analysis. The effect of melatonin on porcine macrophage function was also studied with proteomic analysis. In order to investigate the effect of melatonin on bacterial clearance function of porcine macrophages during ETEC infection, methods such as bacterial counting, reverse transcription PCR and western blotting were used to detect the corresponding indicators. The results showed that ETEC infection blocked melatonin production in porcine macrophages (P < 0.05) which is largely associated with the heat-stable enterotoxin b (STb) of ETEC (P < 0.05). Interestingly, melatonin altered porcine macrophage functions, including bacteriostatic and bactericidal activities based on proteomic analysis. In addition, melatonin pre-treatment significantly reduced extracellular lactate dehydrogenase (LDH) activity (P < 0.05), indicating that melatonin also attenuated ETEC-triggered macrophage death. Moreover, melatonin pre-treatment resulted in the decrease of viable ETEC in 3D4/21 cells (P < 0.05), suggesting that melatonin enhances bacterial clearance of porcine macrophages. These results suggest that melatonin is particularly important in shaping porcine macrophage function during ETEC infection.
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Psycho-Neuro-Endocrine-Immunology: A Role for Melatonin in This New Paradigm. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27154888. [PMID: 35956837 PMCID: PMC9370109 DOI: 10.3390/molecules27154888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/19/2022] [Accepted: 07/27/2022] [Indexed: 11/23/2022]
Abstract
Psychoneuroendocrinoimmunology is the area of study of the intimate relationship between immune, physical, emotional, and psychological aspects. This new way of studying the human body and its diseases was initiated in the last century’s first decades. However, the molecules that participate in the communication between the immune, endocrine, and neurological systems are still being discovered. This paper aims to describe the development of psychoneuroendocrinoimmunology, its scopes, limitations in actual medicine, and the extent of melatonin within it.
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