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Yang Z, Yang X, Wei S, Shen F, Ji W. Exogenous melatonin delays leaves senescence and enhances saline and alkaline stress tolerance in grape seedlings. Plant Signal Behav 2024; 19:2334511. [PMID: 38650457 PMCID: PMC11042054 DOI: 10.1080/15592324.2024.2334511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/19/2024] [Indexed: 04/25/2024]
Abstract
Saline and alkaline stress is one of the major abiotic stresses facing agricultural production, which severely inhibits the growth and yield of plant. The application of plant growth regulators can effectively prevent crop yield reduction caused by saline and alkaline stress. Exogenous melatonin (MT) can act as a signaling molecule involved in the regulation of a variety of physiological processes in plants, has been found to play a key role in enhancing the improvement of plant tolerance to abiotic stresses. However, the effects of exogenous MT on saline and alkaline tolerance of table grape seedlings and its mechanism have not been clarified. The aim of this study was to investigate the role of exogenous MT on morphological and physiological growth of table grape seedlings (Vitis vinifera L.) under saline and alkaline stress. The results showed that saline and alkaline stress resulted in yellowing and wilting of grape leaves and a decrease in chlorophyll content, whereas the application of exogenous MT alleviated the degradation of chlorophyll in grape seedling leaves caused by saline and alkaline stress and promoted the accumulation of soluble sugars and proline content. In addition, exogenous MT increased the activity of antioxidant enzymes, which resulted in the scavenging of reactive oxygen species (ROS) generated by saline and alkaline stress. In conclusion, exogenous MT was involved in the tolerance of grape seedlings to saline and alkaline stress, and enhanced the saline and alkaline resistance of grape seedlings to promote the growth and development of the grape industry in saline and alkaline areas.
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Affiliation(s)
- Zhongyi Yang
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Xixi Yang
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Shimei Wei
- Yuncheng Agriculture and Rural Bureau, Yuncheng, Shanxi, China
| | - Fengfeng Shen
- Yuncheng Agriculture and Rural Bureau, Yuncheng, Shanxi, China
| | - Wei Ji
- College of Horticulture, Shanxi Agricultural University, Taigu, Shanxi, China
- Yuncheng Agriculture and Rural Bureau, Yuncheng, Shanxi, China
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Feng M, Wang R, Deng L, Yang Y, Xia S, Liu F, Luo L. Arrestin beta-2 deficiency exacerbates periodontal inflammation by mediating activating transcription factor 6 activation and abnormal remodelling of the extracellular matrix. J Clin Periodontol 2024; 51:742-753. [PMID: 38267365 DOI: 10.1111/jcpe.13952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 01/05/2024] [Accepted: 01/12/2024] [Indexed: 01/26/2024]
Abstract
AIM To investigate the specific role of arrestin beta-2 (ARRB2) in the progression of periodontitis and the underlying mechanisms. MATERIALS AND METHODS Single-cell RNA sequencing data were used to analyse gene expression in periodontal tissues from healthy controls and patients with periodontitis. Real-time quantitative polymerase chain reaction, Western blotting and immunohistochemical staining were performed to detect the expression of ARRB2. Furthermore, a ligature-induced periodontitis model was created. Using radiographic and histological methods, RNA sequencing and luciferase assay, the role of ARRB2 in periodontitis and the underlying mechanisms were explored. Finally, the therapeutic effect of melatonin, an inhibitor of activating transcription factor 6 (ATF6), on periodontitis in mice was assessed in both in vivo and in vitro experiments. RESULTS ARRB2 expression was up-regulated in inflammatory periodontal tissue. In the ligature-induced mouse model, Arrb2 knockout exacerbated alveolar bone loss (ABL) and extracellular matrix (ECM) degradation. ARRB2 exerted a negative regulatory effect on ATF6, an essential targeted gene. Melatonin ameliorated ABL and an imbalance in ECM remodelling in Arrb2-deficient periodontitis mice. CONCLUSIONS ARRB2 mediates ECM remodelling via inhibition of the ATF6 signalling pathway, which ultimately exerts a protective effect on periodontal tissues.
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Affiliation(s)
- Meiting Feng
- Department of Periodontology, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Ruiling Wang
- Department of Periodontology, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Li Deng
- Department of Periodontology, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Yanan Yang
- Department of Periodontology, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Siying Xia
- Department of Periodontology, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Feng Liu
- Shanghai Key Laboratory of Sleep Disordered Breathing, Otolaryngology Institute of Shanghai JiaoTong University, Department of Otolaryngology-Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lijun Luo
- Department of Periodontology, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
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Reutrakul S, Park JC, McAnany JJ, Chau FY, Danielson KK, Prasad B, Cross A, Sintetas S, Law J, Pannain S, Pratuangtham S, Van Cauter E, Hanlon EC. Dysregulated 24 h melatonin secretion associated with intrinsically photosensitive retinal ganglion cell function in diabetic retinopathy: a cross-sectional study. Diabetologia 2024; 67:1114-1121. [PMID: 38413436 DOI: 10.1007/s00125-024-06118-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/29/2024] [Indexed: 02/29/2024]
Abstract
AIMS/HYPOTHESIS The aim of this study was to explore whether diabetic retinopathy is associated with alterations of the circadian system, and to examine the role of reduced intrinsically photosensitive retinal ganglion cell (ipRGC) function. METHODS Participants with type 2 diabetes, with diabetic retinopathy (n=14) and without diabetic retinopathy (n=9) underwent 24 h blood sampling for melatonin and cortisol under controlled laboratory conditions. ipRGC function was inferred from the post-illumination pupil response (PIPR). Habitual sleep duration, efficiency and variability were assessed by actigraphy. RESULTS Participants with diabetic retinopathy compared to participants without diabetic retinopathy had smaller PIPR (p=0.007), lower 24 h serum melatonin output (p=0.042) and greater day-to-day sleep variability (p=0.012). By contrast, 24 h cortisol profiles, sleep duration and efficiency were similar in both groups. Six individuals with diabetic retinopathy had no detectable dim-light melatonin onset. PIPR correlated with 24 h mean melatonin levels (r=0.555, p=0.007). CONCLUSIONS/INTERPRETATION ipRCG dysfunction in diabetic retinopathy is associated with disruptions of the 24 h melatonin rhythm, suggesting circadian dysregulation in diabetic retinopathy.
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Affiliation(s)
- Sirimon Reutrakul
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA.
| | - Jason C Park
- Department of Ophthalmology and Visual Sciences, University of Illinois Chicago, Chicago, IL, USA
| | - J Jason McAnany
- Department of Ophthalmology and Visual Sciences, University of Illinois Chicago, Chicago, IL, USA
| | - Felix Y Chau
- Department of Ophthalmology and Visual Sciences, University of Illinois Chicago, Chicago, IL, USA
| | - Kirstie K Danielson
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - Bharati Prasad
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
- Jessie Brown Department of Veterans Affairs Hospital, Chicago, IL, USA
| | - Andrew Cross
- Department of Ophthalmology and Visual Sciences, University of Illinois Chicago, Chicago, IL, USA
| | - Stephanie Sintetas
- Section of Adult and Pediatric Endocrinology, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Julie Law
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - Silvana Pannain
- Section of Adult and Pediatric Endocrinology, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Sarida Pratuangtham
- Section of Adult and Pediatric Endocrinology, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Eve Van Cauter
- Section of Adult and Pediatric Endocrinology, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Erin C Hanlon
- Section of Adult and Pediatric Endocrinology, Department of Medicine, University of Chicago, Chicago, IL, USA
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Du K, Shi Q, Zhou X, Zhang L, Su H, Zhang C, Wei Z, Liu T, Wang L, Wang X, Cong B, Yun K. Melatonin attenuates fentanyl - induced behavioral sensitization and circadian rhythm disorders in mice. Physiol Behav 2024; 279:114523. [PMID: 38492912 DOI: 10.1016/j.physbeh.2024.114523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/01/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
Melatonin is a neurohormone synthesized by the pineal gland to regulate the circadian rhythms and has proven to be effective in treating drug addiction and dependence. However, the effects of melatonin to modulate the drug-seeking behavior of fentanyl and its underlying molecular mechanism is elusive. This study was designed to investigate the effects of melatonin on fentanyl - induced behavioral sensitization and circadian rhythm disorders in mice. The accompanying changes in the expression of Brain and Muscle Arnt-Like (BMAL1), tyrosine hydroxylase (TH), and monoamine oxidase A (MAO-A) in relevant brain regions including the suprachiasmatic nucleus (SCN), nucleus accumbens (NAc), prefrontal cortex (PFC), and hippocampus (Hip) were investigated by western blot assays to dissect the mechanism by which melatonin modulates fentanyl - induced behavioral sensitization and circadian rhythm disorders. The present study suggest that fentanyl (0.05, 0.1 and 0.2 mg/kg) could induce behavioral sensitization and melatonin (30.0 mg/kg) could attenuate the behavioral sensitization and circadian rhythm disorders in mice. Fentanyl treatment reduced the expression of BMAL1 and MAO-A and increased that of TH in relevant brain regions. Furthermore, melatonin treatment could reverse the expression levels of BMAL1, MAO-A, and TH. In conclusion, our study demonstrate for the first time that melatonin has therapeutic potential for fentanyl addiction.
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Affiliation(s)
- Kaili Du
- Department of Pathology, Shanxi Medical University, Taiyuan, 030001, China; School of Forensic Medicine, Shanxi Medical University, Taiyuan, 030001, China; School of Basic Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - Qianwen Shi
- School of Forensic Medicine, Shanxi Medical University, Taiyuan, 030001, China; Shanxi Key Laboratory of Forensic Medicine, Shanxi, 030600, China
| | - Xiuya Zhou
- Department of Pathology, Shanxi Medical University, Taiyuan, 030001, China; School of Basic Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - Lifei Zhang
- Department of Pathology, Shanxi Medical University, Taiyuan, 030001, China; School of Basic Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - Hongliang Su
- School of Forensic Medicine, Shanxi Medical University, Taiyuan, 030001, China; Shanxi Key Laboratory of Forensic Medicine, Shanxi, 030600, China
| | - Chao Zhang
- School of Forensic Medicine, Shanxi Medical University, Taiyuan, 030001, China; Shanxi Key Laboratory of Forensic Medicine, Shanxi, 030600, China
| | - Zhiwen Wei
- School of Forensic Medicine, Shanxi Medical University, Taiyuan, 030001, China; Shanxi Key Laboratory of Forensic Medicine, Shanxi, 030600, China
| | - Ting Liu
- Department of Pathology, Shanxi Medical University, Taiyuan, 030001, China; School of Basic Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - Li Wang
- Department of Pathology, Shanxi Medical University, Taiyuan, 030001, China; School of Basic Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - Xiaohui Wang
- Department of Pathology, Shanxi Medical University, Taiyuan, 030001, China; School of Basic Medicine, Shanxi Medical University, Taiyuan, 030001, China
| | - Bin Cong
- School of Forensic Medicine, Shanxi Medical University, Taiyuan, 030001, China; Shanxi Key Laboratory of Forensic Medicine, Shanxi, 030600, China; School of Forensic Medicine, Hebei Medical University, Shijiazhuang, 050017, China
| | - Keming Yun
- School of Forensic Medicine, Shanxi Medical University, Taiyuan, 030001, China; Shanxi Key Laboratory of Forensic Medicine, Shanxi, 030600, China.
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de Lima Menezes G, Sales Bezerra K, Nobre Oliveira JI, Fontenele Araújo J, Soares Galvão D, Alves da Silva R, Vogel Saivish M, Laino Fulco U. Quantum mechanics insights into melatonin and analogs binding to melatonin MT 1 and MT 2 receptors. Sci Rep 2024; 14:10922. [PMID: 38740789 DOI: 10.1038/s41598-024-59786-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/15/2024] [Indexed: 05/16/2024] Open
Abstract
Melatonin receptors MT1 and MT2 are G protein-coupled receptors that mediate the effects of melatonin, a hormone involved in circadian rhythms and other physiological functions. Understanding the molecular interactions between these receptors and their ligands is crucial for developing novel therapeutic agents. In this study, we used molecular docking, molecular dynamics simulations, and quantum mechanics calculation to investigate the binding modes and affinities of three ligands: melatonin (MLT), ramelteon (RMT), and 2-phenylmelatonin (2-PMT) with both receptors. Based on the results, we identified key amino acids that contributed to the receptor-ligand interactions, such as Gln181/194, Phe179/192, and Asn162/175, which are conserved in both receptors. Additionally, we described new meaningful interactions with Gly108/Gly121, Val111/Val124, and Val191/Val204. Our results provide insights into receptor-ligand recognition's structural and energetic determinants and suggest potential strategies for designing more optimized molecules. This study enhances our understanding of receptor-ligand interactions and offers implications for future drug development.
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Affiliation(s)
- Gabriela de Lima Menezes
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande no Norte, Natal, RN, 59072-970, Brazil
- Bioinformatics Multidisciplinary Environment, Programa de Pós Graduação em Bioinformática, Universidade Federal do Rio Grande do Norte, Natal, RN, 59078-400, Brazil
| | - Katyanna Sales Bezerra
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande no Norte, Natal, RN, 59072-970, Brazil
- Applied Physics Department, University of Campinas, Campinas, São Paulo, 13083-859, Brazil
| | - Jonas Ivan Nobre Oliveira
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande no Norte, Natal, RN, 59072-970, Brazil
| | - John Fontenele Araújo
- Departamento de Fisiologia e Comportamento, Universidade Federal do Rio Grande no Norte, Natal, RN, 59072-970, Brazil
| | - Douglas Soares Galvão
- Applied Physics Department, University of Campinas, Campinas, São Paulo, 13083-859, Brazil
| | - Roosevelt Alves da Silva
- Unidade Especial de Ciências Exatas, Universidade Federal de Jataí, Jataí, GO, 75801-615, Brazil
| | - Marielena Vogel Saivish
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José Do Rio Preto, São José Do Rio, Preto, SP, 15090-000, Brazil
- Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Brazilian Biosciences National Laboratory, Campinas, SP, 13083-100, Brazil
| | - Umberto Laino Fulco
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande no Norte, Natal, RN, 59072-970, Brazil.
- Bioinformatics Multidisciplinary Environment, Programa de Pós Graduação em Bioinformática, Universidade Federal do Rio Grande do Norte, Natal, RN, 59078-400, Brazil.
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Nabaei M, Amooaghaie R, Ghorbanpour M, Ahadi A. Crosstalk between melatonin and nitric oxide restrains Cadmium-induced oxidative stress and enhances vinblastine biosynthesis in Catharanthus roseus (L) G Don. Plant Cell Rep 2024; 43:139. [PMID: 38735908 DOI: 10.1007/s00299-024-03229-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/02/2024] [Indexed: 05/14/2024]
Abstract
KEY MESSAGE Nitric oxide functions downstream of the melatonin in adjusting Cd-induced osmotic and oxidative stresses, upregulating the transcription of D4H and DAT genes, and increasing total alkaloid and vincristine contents. A few studies have investigated the relationship between melatonin (MT) and nitric oxide (NO) in regulating defensive responses. However, it is still unclear how MT and NO interact to regulate the biosynthesis of alkaloids and vincristine in leaves of Catharanthus roseus (L.) G. Don under Cd stress. Therefore, this context was explored in the present study. Results showed that Cd toxicity (200 µM) induced oxidative stress, decreased biomass, Chl a, and Chl b content, and increased the content of total alkaloid and vinblastine in the leaves. Application of both MT (100 µM) and sodium nitroprusside (200 µM SNP, as NO donor) enhanced endogenous NO content and accordingly increased metal tolerance index, the content of total alkaloid and vinblastine. It also upregulated the transcription of two respective genes (D4H and DAT) under non-stress and Cd stress conditions. Moreover, the MT and SNP treatments reduced the content of H2O2 and malondialdehyde, increased the activities of superoxide dismutase and ascorbate peroxidase, enhanced proline accumulation, and improved relative water content in leaves of Cd-exposed plants. The scavenging NO by 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxy l-3-oxide (cPTIO) averted the effects of MT on the content of total alkaloid and vinblastine and antioxidative responses. Still, the effects conferred by NO on attributes mentioned above were not significantly impaired by p-chlorophenylalanine (p-CPA as an inhibitor of MT biosynthesis). These findings and multivariate analyses indicate that MT motivated terpenoid indole alkaloid biosynthesis and mitigated Cd-induced oxidative stress in the leaves of periwinkle in a NO-dependent manner.
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Affiliation(s)
- Masoomeh Nabaei
- Plant Science Department, Faculty of Science, Shahrekord University, Shahrekord, Iran
| | - Rayhaneh Amooaghaie
- Plant Science Department, Faculty of Science, Shahrekord University, Shahrekord, Iran.
- Biotechnology Research Institute, Shahrekord University, Shahrekord, Iran.
| | - Mansour Ghorbanpour
- Department of Medicinal Plants, Faculty of Agriculture and Natural Resources, Arak University, Arak, 38156-8-8349, Iran
| | - Alimohammad Ahadi
- Genetic Department, Science Faculty, Shahrekord University, Shahrekord, Iran
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Deantoni M, Reyt M, Baillet M, Dourte M, De Haan S, Lesoinne A, Vandewalle G, Maquet P, Berthomier C, Muto V, Hammad G, Schmidt C. Napping and circadian sleep-wake regulation during healthy aging. Sleep 2024; 47:zsad287. [PMID: 37943833 DOI: 10.1093/sleep/zsad287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/27/2023] [Indexed: 11/12/2023] Open
Abstract
STUDY OBJECTIVES Daytime napping is frequently reported among the older population and has attracted increasing attention due to its association with multiple health conditions. Here, we tested whether napping in the aged is associated with altered circadian regulation of sleep, sleepiness, and vigilance performance. METHODS Sixty healthy older individuals (mean age: 69 years, 39 women) were recruited with respect to their napping habits (30 nappers, 30 non-nappers). All participants underwent an in-lab 40-hour multiple nap protocol (10 cycles of 80 minutes of sleep opportunity alternating with 160 minutes of wakefulness), preceded and followed by a baseline and recovery sleep period. Saliva samples for melatonin assessment, sleepiness, and vigilance performance were collected during wakefulness and electrophysiological data were recorded to derive sleep parameters during scheduled sleep opportunities. RESULTS The circadian amplitude of melatonin secretion was reduced in nappers, compared to non-nappers. Furthermore, nappers were characterized by higher sleep efficiencies and REM sleep proportion during day- compared to nighttime naps. The nap group also presented altered modulation in sleepiness and vigilance performance at specific circadian phases. DISCUSSION Our data indicate that napping is associated with an altered circadian sleep-wake propensity rhythm. They thereby contribute to the understanding of the biological correlates underlying napping and/or sleep-wake cycle fragmentation during healthy aging. Altered circadian sleep-wake promotion can lead to a less distinct allocation of sleep into nighttime and/or a reduced wakefulness drive during the day, thereby potentially triggering the need to sleep at adverse circadian phase.
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Affiliation(s)
- Michele Deantoni
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
| | - Mathilde Reyt
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
- Psychology and Neuroscience of Cognition Research Unit (PsyNCog), Faculty of Psychology and Educational Sciences, University of Liège, Liège, Belgium
| | - Marion Baillet
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
| | - Marine Dourte
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
- Psychology and Neuroscience of Cognition Research Unit (PsyNCog), Faculty of Psychology and Educational Sciences, University of Liège, Liège, Belgium
| | - Stella De Haan
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
| | - Alexia Lesoinne
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
| | - Gilles Vandewalle
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
| | - Pierre Maquet
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
- Department of Neurology, University Hospital of Liège, University of Liège, Liège, Belgium
| | | | - Vincenzo Muto
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
| | - Gregory Hammad
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
| | - Christina Schmidt
- Sleep and Chronobiology Group, GIGA-CRC-In Vivo Imaging Research Unit, University of Liège, Liège, Belgium
- Psychology and Neuroscience of Cognition Research Unit (PsyNCog), Faculty of Psychology and Educational Sciences, University of Liège, Liège, Belgium
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Li G, Manzoor MA, Wang G, Huang S, Ding X, Abdullah M, Zhang M, Song C. Comparative analysis of POD genes and their expression under multiple hormones in Pyrus bretschenedri. BMC Genom Data 2024; 25:41. [PMID: 38711007 DOI: 10.1186/s12863-024-01229-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/26/2024] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND Class III peroxidase (POD) enzymes play vital roles in plant development, hormone signaling, and stress responses. Despite extensive research on POD families in various plant species, the knowledge regarding the POD family in Chinese pear (Pyrus bretschenedri) is notably limited. RESULTS We systematically characterized 113 POD family genes, designated as PbPOD1 to PbPOD113 based on their chromosomal locations. Phylogenetic analysis categorized these genes into seven distinct subfamilies (I to VII). The segmental duplication events were identified as a prevalent mechanism driving the expansion of the POD gene family. Microsynteny analysis, involving comparisons with Pyrus bretschenedri, Fragaria vesca, Prunus avium, Prunus mume and Prunus persica, highlighted the conservation of duplicated POD regions and their persistence through purifying selection during the evolutionary process. The expression patterns of PbPOD genes were performed across various plant organs and diverse fruit development stages using transcriptomic data. Furthermore, we identified stress-related cis-acting elements within the promoters of PbPOD genes, underscoring their involvement in hormonal and environmental stress responses. Notably, qRT-PCR analyses revealed distinctive expression patterns of PbPOD genes in response to melatonin (MEL), salicylic acid (SA), abscisic acid (ABA), and methyl jasmonate (MeJA), reflecting their responsiveness to abiotic stress and their role in fruit growth and development. CONCLUSIONS In this study, we investigated the potential functions and evolutionary dynamics of PbPOD genes in Pyrus bretschenedri, positioning them as promising candidates for further research and valuable indicators for enhancing fruit quality through molecular breeding strategies.
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Affiliation(s)
- Guohui Li
- Anhui Provincial Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, China
| | - Muhammad Aamir Manzoor
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Guoyu Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Shiping Huang
- Anhui Provincial Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, China
| | - Xiaoyuan Ding
- Anhui Provincial Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, China
| | - Muhammad Abdullah
- Queensland Alliance of Agriculture and Food Innovation, The University of Queensland, Brisbane, 4072, Australia
| | - Ming Zhang
- Anhui Provincial Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, China.
| | - Cheng Song
- Anhui Provincial Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, 237012, China.
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He W, Wang X, Yang X, Zhang G, Zhang J, Chen L, Niu P, Chen T. Melatonin mitigates manganese-induced neural damage via modulation of gut microbiota-metabolism in mice. Sci Total Environ 2024; 923:171474. [PMID: 38447734 DOI: 10.1016/j.scitotenv.2024.171474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/02/2024] [Accepted: 03/02/2024] [Indexed: 03/08/2024]
Abstract
Manganese (Mn), a common environmental and occupational risk factor for Parkinson's disease (PD), can cause central nervous system damage and gastrointestinal dysfunction. The melatonin has been shown to effectively improve neural damage and intestinal microbiota disturbances in animal models. This research investigated the mechanism by which exogenous melatonin prevented Mn-induced neurogenesis impairment and neural damage. Here, we established subchronic Mn-exposed mice model and melatonin supplement tests to evaluate the role of melatonin in alleviating Mn-induced neurogenesis impairment. Mn induced neurogenesis impairment and microglia overactivation, behavioral dysfunction, gut microbiota dysbiosis and serum metabolic disorder in mice. All these events were reversed with the melatonin supplement. The behavioral tests revealed that melatonin group showed approximately 30 % restoration of motor activity. According to quantitative real time polymerase chain reaction (qPCR) results, melatonin group showed remarkable restoration of the expression of dopamine neurons and neurogenesis markers, approximately 46.4 % (TH), 68.4 % (DCX in hippocampus) and 48 % (DCX in striatum), respectively. Interestingly, melatonin increased neurogenesis probably via the gut microbiota and metabolism modulation. The correlation analysis of differentially expressed genes associated with hippocampal neurogenesis indicated that Firmicutes-lipid metabolism might mediate the critical repair role of melatonin in neurogenesis in Mn-exposed mice. In conclusion, exogenous melatonin supplementation can promote neurogenesis, and restore neuron loss and neural function in Mn-exposed mice, and the multi-omics results provide new research ideas for future mechanistic studies.
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Affiliation(s)
- Weifeng He
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xueting Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xin Yang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Gaoman Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Junrou Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Li Chen
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Piye Niu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China.
| | - Tian Chen
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China.
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10
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Hosseinzadeh A, Alinaghian N, Sheibani M, Seirafianpour F, Naeini AJ, Mehrzadi S. Melatonin: Current evidence on protective and therapeutic roles in gynecological diseases. Life Sci 2024; 344:122557. [PMID: 38479596 DOI: 10.1016/j.lfs.2024.122557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/17/2024]
Abstract
Melatonin, a potent antioxidant and free radical scavenger, has been demonstrated to be effective in gynecological conditions and female reproductive cancers. This review consolidates the accumulating evidence on melatonin's multifaceted protective effects in different pathological contexts. In gynecological conditions such as endometriosis, polycystic ovary syndrome (PCOS), and uterine leiomyoma, melatonin has shown promising effects in reducing oxidative stress, inflammation, and hormonal imbalances. It inhibits adhesion molecules' production, and potentially mitigates leukocyte adherence and inflammatory responses. Melatonin's regulatory effects on hormone production and insulin sensitivity in PCOS individuals make it a promising candidate for improving oocyte quality and menstrual irregularities. Moreover, melatonin exhibits significant antitumor effects by modulating various signaling pathways, promoting apoptosis, and suppressing metastasis in breast cancers and gynecological cancers, including ovarian, endometrial, and cervical cancers. Furthermore, melatonin's protective effects are suggested to be mediated by interactions with its receptors, estrogen receptors and other nuclear receptors. The regulation of clock-related genes and circadian clock systems may also contribute to its inhibitory effects on cancer cell growth. However, more comprehensive research is warranted to fully elucidate the underlying molecular mechanisms and establish melatonin as a potential therapeutic agent for these conditions.
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Affiliation(s)
- Azam Hosseinzadeh
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Nazila Alinaghian
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sheibani
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Ali Jamshidi Naeini
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Saeed Mehrzadi
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran.
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11
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Liu Y, Wang F, Cheng B, Zhou G. Melatonin improves salivary gland damage and hypofunction in pSS by inhibiting IL-6/STAT3 signaling through its receptor-dependent manner. Mol Immunol 2024; 169:10-27. [PMID: 38460474 DOI: 10.1016/j.molimm.2024.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/31/2024] [Accepted: 02/15/2024] [Indexed: 03/11/2024]
Abstract
OBJECTIVE Primary Sjogren's syndrome (pSS) is an autoimmune disease of the exocrine glands with no specific or efficient treatments. Melatonin, a natural hormone, is revealed to show multiple biological functions, both receptor-dependent and independent effects, including anti-apoptotic, antioxidant, and anti-inflammatory activities. However, the potential mechanism by which melatonin protects salivary glands (SGs) of pSS from damage needs to be clarified. The purpose of current study was to explore the role and receptor-related mechanisms of melatonin in pSS-induced glandular damage. METHODS AND RESULTS NOD/Ltj mice were used to spontaneously mimic pSS-induced glandular hypofunction in vivo and primary human salivary gland epithelial (HSGE) cells were stimulated by interferon-γ (IFN-γ) to mimic pSS-induced inflammation in SGs cells in vitro. Melatonin-treated mice exhibited a significant reduction in SG injury of NOD/Ltj mice, which was accompanied by an increase in salivary flow rate, a decrease in inflammatory infiltration within the gland, and a suppression of oxidative stress indicators as well as cell apoptosis. Notably, both melatonin membrane receptors and nuclear receptors played an important role in the anti-apoptotic effects of melatonin on the SGs of NOD/Ltj mice. Furthermore, melatonin blocked the IL-6/STAT3 pathway through receptor-dependent manners in IFN-γ-stimulated HSGE cells. However, it was evident that the anti-oxidative and anti-apoptotic properties of melatonin on IFN-γ-stimulated HSGE cells were diminished by IL-6 treatment. CONCLUSION Melatonin had the potential to mitigate inflammation, oxidative stress, and apoptosis in SGs of pSS by inhibiting the IL-6/STAT3 pathway through receptor-dependent mechanisms. This intervention effectively prevented glandular damage and preserved functional integrity.
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Affiliation(s)
- Yi Liu
- The State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, China
| | - Fang Wang
- The State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, China; Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, China
| | - Bo Cheng
- Department of Stomatology, Zhongnan Hospital of Wuhan University, China.
| | - Gang Zhou
- The State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, China; Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, China.
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12
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Bedini A, Boutin JA, Legros C, Zlotos DP, Spadoni G. Industrial and academic approaches to the search for alternative melatonin receptor ligands: An historical survey. J Pineal Res 2024; 76:e12953. [PMID: 38682544 DOI: 10.1111/jpi.12953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 03/05/2024] [Accepted: 03/24/2024] [Indexed: 05/01/2024]
Abstract
The search for melatonin receptor agonists formed the main part of melatonin medicinal chemistry programs for the last three decades. In this short review, we summarize the two main aspects of these programs: the development of all the necessary tools to characterize the newly synthesized ligands at the two melatonin receptors MT1 and MT2, and the medicinal chemist's approaches to find chemically diverse ligands at these receptors. Both strategies are described. It turns out that the main source of tools were industrial laboratories, while the medicinal chemistry was mainly carried out in academia. Such complete accounts are interesting, as they delineate the spirits in which the teams were working demonstrating their strength and innovative character. Most of the programs were focused on nonselective agonists and few of them reached the market. In contrast, discovery of MT1-selective agonists and melatonergic antagonists with proven in vivo activity and MT1 or MT2-selectivity is still in its infancy, despite the considerable interest that subtype selective compounds may bring in the domain, as the physiological respective roles of the two subtypes of melatonin receptors, is still poorly understood. Poly-pharmacology applications and multitarget ligands have also been considered.
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MESH Headings
- Ligands
- Humans
- Animals
- Receptor, Melatonin, MT2/metabolism
- Receptor, Melatonin, MT2/agonists
- Receptor, Melatonin, MT1/metabolism
- Receptor, Melatonin, MT1/agonists
- Receptor, Melatonin, MT1/antagonists & inhibitors
- Receptors, Melatonin/metabolism
- Receptors, Melatonin/agonists
- Melatonin/metabolism
- History, 20th Century
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Affiliation(s)
- Annalida Bedini
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino Carlo Bo, Urbino, Italy
| | - Jean A Boutin
- Laboratory of Neuroendocrine Endocrine and Germinal Differentiation and Communication (NorDiC), Univ Rouen Normandie, Inserm, NorDiC, Rouen, France
| | | | - Darius P Zlotos
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, The German University in Cairo, New Cairo City, Egypt
| | - Gilberto Spadoni
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino Carlo Bo, Urbino, Italy
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Ahmadi S, Taghizadieh M, Mehdizadehfar E, Hasani A, Khalili Fard J, Feizi H, Hamishehkar H, Ansarin M, Yekani M, Memar MY. Gut microbiota in neurological diseases: Melatonin plays an important regulatory role. Biomed Pharmacother 2024; 174:116487. [PMID: 38518598 DOI: 10.1016/j.biopha.2024.116487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024] Open
Abstract
Melatonin is a highly conserved molecule produced in the human pineal gland as a hormone. It is known for its essential biological effects, such as antioxidant activity, circadian rhythm regulator, and immunomodulatory effects. The gut is one of the primary known sources of melatonin. The gut microbiota helps produce melatonin from tryptophan, and melatonin has been shown to have a beneficial effect on gut barrier function and microbial population. Dysbiosis of the intestinal microbiota is associated with bacterial imbalance and decreased beneficial microbial metabolites, including melatonin. In this way, low melatonin levels may be related to several human diseases. Melatonin has shown both preventive and therapeutic effects against various conditions, including neurological diseases such as Alzheimer's disease, Parkinson's disease, and multiple sclerosis. This review was aimed to discuss the role of melatonin in the body, and to describe the possible relationship between gut microbiota and melatonin production, as well as the potential therapeutic effects of melatonin on neurological diseases.
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Affiliation(s)
- Somayeh Ahmadi
- Students Research Committee, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Bacteriology and Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Taghizadieh
- Department of Pathology, School of Medicine, Center for Women's Health Research Zahra, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Mehdizadehfar
- Department of Neurosciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alka Hasani
- Department of Bacteriology and Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Clinical Research Development Unit, Sina Educational, Research and Treatment Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javad Khalili Fard
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Feizi
- Department of Bacteriology and Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Microbiology, Aalinasab Hospital, Social Security Organization, Tabriz, Iran
| | - Hammed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masood Ansarin
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mina Yekani
- Department of Microbiology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran; Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran.
| | - Mohammad Yousef Memar
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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14
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Popp RFJ, Ottersbach J, Wetter TC, Schüler S, Rothe S, Betz D, Staggl S, Canazei M. Multimodal in-vehicle lighting system increases daytime light exposure and alertness in truck drivers under Arctic winter conditions. Sci Rep 2024; 14:9925. [PMID: 38688926 PMCID: PMC11061141 DOI: 10.1038/s41598-024-60308-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 04/21/2024] [Indexed: 05/02/2024] Open
Abstract
Drowsiness while driving negatively impacts road safety, especially in truck drivers. The present study investigated the feasibility and alerting effects of a daylight-supplementing in-truck lighting system (DS) providing short-wavelength enriched light before, during, and after driving. In a within-participants design, eight truck drivers drove a fully-loaded truck under wintry Scandinavian conditions (low daylight levels) with a DS or placebo system for five days. Subjective and objective measures of alertness were recorded several times daily, and evening melatonin levels were recorded three times per study condition. DS significantly increased daytime light exposure without causing negative side effects while driving. In addition, no negative carry-over effects were observed on evening melatonin and sleepiness levels or on nighttime sleep quality. Moreover, objective alertness (i.e., psychomotor vigilance) before and after driving was significantly improved by bright light exposure. This effect was accompanied by improved subjective alertness in the morning. This field study demonstrated that DS was able to increase daytime light exposure in low-daylight conditions and to improve alertness in truck drivers before and after driving (e.g., during driving rest periods). Further studies are warranted to investigate the effects of daylight-supplementing in-cabin lighting on driving performance and road safety measures.
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Affiliation(s)
- Roland F J Popp
- Department of Psychiatry and Psychotherapy, Center of Sleep Medicine, University of Regensburg, 93053, Regensburg, Germany.
| | - Julia Ottersbach
- Department of Psychiatry and Psychotherapy, Center of Sleep Medicine, University of Regensburg, 93053, Regensburg, Germany
- Institute of Experimental Psychology, University of Regensburg, 93053, Regensburg, Germany
| | - Thomas C Wetter
- Department of Psychiatry and Psychotherapy, Center of Sleep Medicine, University of Regensburg, 93053, Regensburg, Germany
| | | | | | - Daniel Betz
- Mercedes-Benz AG, 71059, Sindelfingen, Germany
| | - Siegmund Staggl
- Department of Psychology, University of Innsbruck, 6020, Innsbruck, Austria
| | - Markus Canazei
- Department of Psychology, University of Innsbruck, 6020, Innsbruck, Austria
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15
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Kung HC, Bui NH, Huang BW, Cheruiyot NK, Chang-Chien GP. Biosynthetic Pathways of Tryptophan Metabolites in Saccharomyces cerevisiae Strain: Insights and Implications. Int J Mol Sci 2024; 25:4747. [PMID: 38731967 PMCID: PMC11083699 DOI: 10.3390/ijms25094747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/15/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Tryptophan metabolites, such as 5-hydroxytryptophan (5-HTP), serotonin, and melatonin, hold significant promise as supplements for managing various mood-related disorders, including depression and insomnia. However, their chemical production via chemical synthesis and phytochemical extraction presents drawbacks, such as the generation of toxic byproducts and low yields. In this study, we explore an alternative approach utilizing S. cerevisiae STG S101 for biosynthesis. Through a series of eleven experiments employing different combinations of tryptophan supplementation, Tween 20, and HEPES buffer, we investigated the production of these indolamines. The tryptophan metabolites were analyzed using liquid chromatography with tandem mass spectrometry (LC-MS/MS). Notably, setups replacing peptone in the YPD media with tryptophan (Run 3) and incorporating tryptophan along with 25 mM HEPES buffer (Run 4) demonstrated successful biosynthesis of 5-HTP and serotonin. The highest 5-HTP and serotonin concentrations were 58.9 ± 16.0 mg L-1 and 0.0650 ± 0.00211 mg L-1, respectively. Melatonin concentrations were undetected in all the setups. These findings underscore the potential of using probiotic yeast strains as a safer and conceivably more cost-effective alternative for indolamine synthesis. The utilization of probiotic strains presents a promising avenue, potentially offering scalability, sustainability, reduced environmental impact, and feasibility for large-scale production.
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Affiliation(s)
- Hsin-Chieh Kung
- Institute of Environmental Toxin and Emerging Contaminant, Cheng Shiu University, Kaohsiung 83347, Taiwan; (H.-C.K.); (N.-H.B.)
| | - Ngoc-Han Bui
- Institute of Environmental Toxin and Emerging Contaminant, Cheng Shiu University, Kaohsiung 83347, Taiwan; (H.-C.K.); (N.-H.B.)
| | - Bo-Wun Huang
- Department of Mechanical and Institute of Mechatronic Engineering, Cheng Shiu University, Kaohsiung 83347, Taiwan;
| | - Nicholas Kiprotich Cheruiyot
- Institute of Environmental Toxin and Emerging Contaminant, Cheng Shiu University, Kaohsiung 83347, Taiwan; (H.-C.K.); (N.-H.B.)
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung 83347, Taiwan
| | - Guo-Ping Chang-Chien
- Institute of Environmental Toxin and Emerging Contaminant, Cheng Shiu University, Kaohsiung 83347, Taiwan; (H.-C.K.); (N.-H.B.)
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung 83347, Taiwan
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16
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Zhang W, Sun Y, Wang H, Xu M, He C, Wang C, Yu Y, Zhang Z, Su L. Exogenous Melatonin Enhances Dihydrochalcone Accumulation in Lithocarpus litseifolius Leaves via Regulating Hormonal Crosstalk and Transcriptional Profiling. Int J Mol Sci 2024; 25:4592. [PMID: 38731810 PMCID: PMC11083347 DOI: 10.3390/ijms25094592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 05/13/2024] Open
Abstract
Dihydrochalcones (DHCs) constitute a specific class of flavonoids widely known for their various health-related advantages. Melatonin (MLT) has received attention worldwide as a master regulator in plants, but its roles in DHC accumulation remain unclear. Herein, the elicitation impacts of MLT on DHC biosynthesis were examined in Lithocarpus litseifolius, a valuable medicinal plant famous for its sweet flavor and anti-diabetes effect. Compared to the control, the foliar application of MLT significantly increased total flavonoid and DHC (phlorizin, trilobatin, and phloretin) levels in L. litseifolius leaves, especially when 100 μM MLT was utilized for 14 days. Moreover, antioxidant enzyme activities were boosted after MLT treatments, resulting in a decrease in the levels of intracellular reactive oxygen species. Remarkably, MLT triggered the biosynthesis of numerous phytohormones linked to secondary metabolism (salicylic acid, methyl jasmonic acid (MeJA), and ethylene), while reducing free JA contents in L. litseifolius. Additionally, the flavonoid biosynthetic enzyme activities were enhanced by the MLT in leaves. Multiple differentially expressed genes (DEGs) in RNA-seq might play a crucial role in MLT-elicited pathways, particularly those associated with the antioxidant system (SOD, CAT, and POD), transcription factor regulation (MYBs and bHLHs), and DHC metabolism (4CL, C4H, UGT71K1, and UGT88A1). As a result, MLT enhanced DHC accumulation in L. litseifolius leaves, primarily by modulating the antioxidant activity and co-regulating the physiological, hormonal, and transcriptional pathways of DHC metabolism.
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Affiliation(s)
- Wenlong Zhang
- School of Biology Engineering, Dalian Polytechnic University, Dalian 116034, China; (W.Z.); (Y.S.); (Y.Y.)
- Guangdong Academy of Forestry, Guangdong Provincial Key Laboratory of Silviculture Protection and Utilization, Guangzhou 510520, China; (H.W.); (M.X.); (C.H.); (C.W.)
| | - Yuqi Sun
- School of Biology Engineering, Dalian Polytechnic University, Dalian 116034, China; (W.Z.); (Y.S.); (Y.Y.)
- Guangdong Academy of Forestry, Guangdong Provincial Key Laboratory of Silviculture Protection and Utilization, Guangzhou 510520, China; (H.W.); (M.X.); (C.H.); (C.W.)
| | - Hongfeng Wang
- Guangdong Academy of Forestry, Guangdong Provincial Key Laboratory of Silviculture Protection and Utilization, Guangzhou 510520, China; (H.W.); (M.X.); (C.H.); (C.W.)
| | - Mingfeng Xu
- Guangdong Academy of Forestry, Guangdong Provincial Key Laboratory of Silviculture Protection and Utilization, Guangzhou 510520, China; (H.W.); (M.X.); (C.H.); (C.W.)
| | - Chunmei He
- Guangdong Academy of Forestry, Guangdong Provincial Key Laboratory of Silviculture Protection and Utilization, Guangzhou 510520, China; (H.W.); (M.X.); (C.H.); (C.W.)
| | - Congcong Wang
- Guangdong Academy of Forestry, Guangdong Provincial Key Laboratory of Silviculture Protection and Utilization, Guangzhou 510520, China; (H.W.); (M.X.); (C.H.); (C.W.)
| | - Yongli Yu
- School of Biology Engineering, Dalian Polytechnic University, Dalian 116034, China; (W.Z.); (Y.S.); (Y.Y.)
- Guangdong Academy of Forestry, Guangdong Provincial Key Laboratory of Silviculture Protection and Utilization, Guangzhou 510520, China; (H.W.); (M.X.); (C.H.); (C.W.)
| | - Zongshen Zhang
- School of Biology Engineering, Dalian Polytechnic University, Dalian 116034, China; (W.Z.); (Y.S.); (Y.Y.)
| | - Lingye Su
- Guangdong Academy of Forestry, Guangdong Provincial Key Laboratory of Silviculture Protection and Utilization, Guangzhou 510520, China; (H.W.); (M.X.); (C.H.); (C.W.)
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17
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Muhammad I, Ahmad S, Shen W. Melatonin-Mediated Molecular Responses in Plants: Enhancing Stress Tolerance and Mitigating Environmental Challenges in Cereal Crop Production. Int J Mol Sci 2024; 25:4551. [PMID: 38674136 PMCID: PMC11049982 DOI: 10.3390/ijms25084551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Cereal crops are crucial for global food security; however, they are susceptible to various environmental stresses that significantly hamper their productivity. In response, melatonin has emerged as a promising regulator, offering potential benefits for stress tolerance and crop growth. This review explores the effects of melatonin on maize, sorghum, millet, rice, barley, and wheat, aiming to enhance their resilience to stress. The application of melatonin has shown promising outcomes, improving water use efficiency and reducing transpiration rates in millet under drought stress conditions. Furthermore, it enhances the salinity and heavy metal tolerance of millet by regulating the activity of stress-responsive genes. Similarly, melatonin application in sorghum enhances its resistance to high temperatures, low humidity, and nutrient deficiency, potentially involving the modulation of antioxidant defense and aspects related to photosynthetic genes. Melatonin also exerts protective effects against drought, salinity, heavy metal, extreme temperatures, and waterlogging stresses in maize, wheat, rice, and barley crops by decreasing reactive oxygen species (ROS) production through regulating the antioxidant defense system. The molecular reactions of melatonin upregulated photosynthesis, antioxidant defense mechanisms, the metabolic pathway, and genes and downregulated stress susceptibility genes. In conclusion, melatonin serves as a versatile tool in cereal crops, bolstering stress resistance and promoting sustainable development. Further investigations are warranted to elucidate the underlying molecular mechanisms and refine application techniques to fully harness the potential role of melatonin in cereal crop production systems.
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Affiliation(s)
- Ihsan Muhammad
- Guangxi Key Laboratory of Forest Ecology and Conservation, State Key Laboratory for Conservation and Utilization of Agro-Bioresources, College of Forestry, Guangxi University, Nanning 530004, China;
| | - Shakeel Ahmad
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China;
| | - Weijun Shen
- Guangxi Key Laboratory of Forest Ecology and Conservation, State Key Laboratory for Conservation and Utilization of Agro-Bioresources, College of Forestry, Guangxi University, Nanning 530004, China;
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18
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Yehia A, Abulseoud OA. Melatonin: a ferroptosis inhibitor with potential therapeutic efficacy for the post-COVID-19 trajectory of accelerated brain aging and neurodegeneration. Mol Neurodegener 2024; 19:36. [PMID: 38641847 PMCID: PMC11031980 DOI: 10.1186/s13024-024-00728-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/15/2024] [Indexed: 04/21/2024] Open
Abstract
The unprecedented pandemic of COVID-19 swept millions of lives in a short period, yet its menace continues among its survivors in the form of post-COVID syndrome. An exponentially growing number of COVID-19 survivors suffer from cognitive impairment, with compelling evidence of a trajectory of accelerated aging and neurodegeneration. The novel and enigmatic nature of this yet-to-unfold pathology demands extensive research seeking answers for both the molecular underpinnings and potential therapeutic targets. Ferroptosis, an iron-dependent cell death, is a strongly proposed underlying mechanism in post-COVID-19 aging and neurodegeneration discourse. COVID-19 incites neuroinflammation, iron dysregulation, reactive oxygen species (ROS) accumulation, antioxidant system repression, renin-angiotensin system (RAS) disruption, and clock gene alteration. These events pave the way for ferroptosis, which shows its signature in COVID-19, premature aging, and neurodegenerative disorders. In the search for a treatment, melatonin shines as a promising ferroptosis inhibitor with its repeatedly reported safety and tolerability. According to various studies, melatonin has proven efficacy in attenuating the severity of certain COVID-19 manifestations, validating its reputation as an anti-viral compound. Melatonin has well-documented anti-aging properties and combating neurodegenerative-related pathologies. Melatonin can block the leading events of ferroptosis since it is an efficient anti-inflammatory, iron chelator, antioxidant, angiotensin II antagonist, and clock gene regulator. Therefore, we propose ferroptosis as the culprit behind the post-COVID-19 trajectory of aging and neurodegeneration and melatonin, a well-fitting ferroptosis inhibitor, as a potential treatment.
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Affiliation(s)
- Asmaa Yehia
- Department of Neuroscience, Graduate School of Biomedical Sciences, Mayo Clinic College of Medicine, Phoenix, AZ, 58054, USA
- Department of Medical Physiology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Osama A Abulseoud
- Department of Neuroscience, Graduate School of Biomedical Sciences, Mayo Clinic College of Medicine, Phoenix, AZ, 58054, USA.
- Department of Psychiatry and Psychology, Mayo Clinic Arizona, 5777 E Mayo Blvd, Phoenix, AZ, 85054, USA.
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19
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Li Y, Ma B, Wang Z, Chen Y, Dong Y. The Effect Mechanism of N6-adenosine Methylation (m6A) in Melatonin Regulated LPS-induced Colon Inflammation. Int J Biol Sci 2024; 20:2491-2506. [PMID: 38725850 PMCID: PMC11077364 DOI: 10.7150/ijbs.95316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/29/2024] [Indexed: 05/12/2024] Open
Abstract
Colon inflammation is characterized by disturbances in the intestinal microbiota and inflammation. Melatonin (Mel) can improve colon inflammation. However, the underlying mechanism remains unclear. Recent studies suggest that m6A methylation modification may play an important role in inflammatory responses. This study aimed to explore the effects of melatonin and LPS-mediated m6A methylation on colon inflammation. Our study found that melatonin inhibits M1 macrophages, activates M2 macrophages, inhibit the secretion of pro-inflammatory factors, maintain colon homeostasis and improves colon inflammation through MTNR1B. In addition, the increased methylation level of m6A is associated with the occurrence of colon inflammation, and melatonin can also reduce the level of colon methylation to improve colon inflammation. Among them, the main methylated protein METTL3 can be inhibited by melatonin through MTNR1B. In a word, melatonin regulates m6A methylation by improving abnormal METTL3 protein level to reshape the microflora and activate macrophages to improve colon inflammation, mainly through MTNR1B.
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Affiliation(s)
- Yuanyuan Li
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, People's Republic of China
| | - Baochen Ma
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, Department of Nutrition and Health, China Agricultural University, Beijing, People's Republic of China
| | - Zixu Wang
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, People's Republic of China
| | - Yaoxing Chen
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, People's Republic of China
| | - Yulan Dong
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, People's Republic of China
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Yang S, Chen M, Meng J, Hao C, Xu L, Wang J, Chen J. Melatonin alleviates di-butyl phthalate (DBP)-induced ferroptosis of mouse leydig cells via inhibiting Sp2/VDAC2 signals. Environ Res 2024; 247:118221. [PMID: 38246300 DOI: 10.1016/j.envres.2024.118221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/25/2023] [Accepted: 01/14/2024] [Indexed: 01/23/2024]
Abstract
As one of the endocrine-disrupting chemicals (EDCs), dibutyl phthalate (DBP) has been extensively used in industry. DBP has been shown to cause damage to Leydig cells, yet its underlying mechanism remains elusive. In this study, we show that DBP induces ferroptosis of mouse Leydig cells via upregulating the expression of Sp2, a transcription factor. Also, Sp2 is identified to promote the transcription of Vdac2 gene by binding to its promoter and subsequently involved in DBP-induced ferroptosis of Leydig cells. In addition, DBP is proved to induce ferroptosis via inducing oxidative stress, while inhibition of oxidative stress by melatonin alleviates DBP-induced ferroptosis and upregulation of Sp2 and VDAC2. Taken together, our findings demonstrate that melatonin can alleviate DBP-induced ferroptosis of mouse Leydig cells via inhibiting oxidative stress-triggered Sp2/VDAC2 signals.
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Affiliation(s)
- Si Yang
- Department of Physiology, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330006, PR China
| | - Meiwei Chen
- Department of Physiology, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330006, PR China
| | - Jiahui Meng
- Department of Physiology, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330006, PR China
| | - Chaoju Hao
- Library, Jiangxi Medical College, Nanchang University, Nanchang, 330006, PR China
| | - Linlin Xu
- Department of Pathology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, PR China
| | - Jinglei Wang
- Department of Physiology, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330006, PR China
| | - Jiaxiang Chen
- Department of Physiology, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang, 330006, PR China.
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21
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Shan J, Guan H, Zhang Z, Ma W, Cai J, Gao G, Zhang Z. BDE-47-induced damage prevented by melatonin in grass carp hepatocytes (L8824). Environ Sci Pollut Res Int 2024; 31:26089-26098. [PMID: 38492135 DOI: 10.1007/s11356-024-32856-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 03/07/2024] [Indexed: 03/18/2024]
Abstract
Polybrominated diphenyl ethers (PBDEs) are toxic to organisms with melatonin (MT) providing protection for tissues and cells against these. This study investigates the mechanism of damage of 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) and the cellular protection of MT on grass carp hepatocytes. Grass carp hepatocytes were exposed to 25 μmol/L BDE-47 and/or 40 μmol/L MT for 24 h before testing. Acridine orange/ethidium bromide (AO/EB) double fluorescence staining results showed that BDE-47 could induce cell apoptosis. The expression levels of the endoplasmic reticulum (ER) stress-related genes ire1, atf4, grp78, perk, and chop were also significantly up-regulated (P < 0.01). The levels of the apoptosis-related genes caspase3, bax, and caspase9 were significantly up-regulated (P < 0.0001), while the level of bcl-2 was significantly down-regulated (P < 0.01). Compared with the BDE-47 group, the BDE-47 + MT group showed reduced levels of ER and apoptosis of hepatocytes, while the expression of the ER stress-related genes ire1, atf4, grp78, perk, and chop and the apoptosis-related genes caspase3, bax, and caspase9 were down-regulated (P < 0.05), and the level of bcl-2 was up-regulated (P < 0.01). In conclusion, BDE-47 can activate ER and apoptosis in grass carp hepatocytes, while MT can reduce these responses.
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Affiliation(s)
- Jianhua Shan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Haoyue Guan
- College of Animal Science and Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhuoqi Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Wenxue Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jingzeng Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin, 150030, People's Republic of China
| | - Ge Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin, 150030, People's Republic of China.
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22
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Li W, Ali T, He K, Zheng C, Li N, Yu Z, Li S. ApoE4 dysregulation incites depressive symptoms and mitochondrial impairments in mice. J Cell Mol Med 2024; 28:e18160. [PMID: 38506067 PMCID: PMC10951871 DOI: 10.1111/jcmm.18160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 01/12/2024] [Accepted: 01/18/2024] [Indexed: 03/21/2024] Open
Abstract
Apolipoprotein E4 (ApoE4) is involved in the stress-response processes and is hypothesized to be a risk factor for depression by means of mitochondrial dysfunction. However, their exact roles and underlying mechanisms are largely unknown. ApoE4 transgenic mice (B6. Cg-ApoEtm1Unc Cdh18Tg( GFAP-APOE i4)1Hol /J) were subjected to stress (lipopolysaccharides, LPS) to elucidate the aetiology of ApoE4-induced depression. LPS treatment significantly aggravated depression-like behaviours, concurrent with neuroinflammation and impaired mitochondrial changes, and melatonin/Urolithin A (UA) + 5-aminoimidazole-4-carboxamide 1-β-D-ribofuranoside (AICAR) reversed these effects in ApoE4 mice. Concurrently, ApoE4 mice exhibited mitophagy deficits, which could be further exacerbated by LPS stimulation, as demonstrated by reduced Atg5, Beclin-1 and Parkin levels, while PINK1 levels were increased. However, these changes were reversed by melatonin treatment. Additionally, proteomic profiling suggested mitochondria-related signalling and network changes in ApoE4 mice, which may underlie the exaggerated response to LPS. Furthermore, HEK 293T cells transfected with ApoE4 showed mitochondria-associated protein and mitophagy defects, including PGC-1α, TFAM, p-AMPKα, PINK1 and LC3B impairments. Additionally, it aggravates mitochondrial impairment (particularly mitophagy), which can be attenuated by triggering autophagy. Collectively, ApoE4 dysregulation enhanced depressive behaviour upon LPS stimulation.
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Affiliation(s)
- Weifen Li
- Department of Infectious Diseases, Huazhong University of Science and Technology Union Shenzhen HospitalShenzhen University School of MedicineShenzhenChina
- State Key Laboratory of Oncogenomics, School of Chemical Biology and BiotechnologyPeking University Shenzhen Graduate SchoolShenzhenChina
| | - Tahir Ali
- State Key Laboratory of Oncogenomics, School of Chemical Biology and BiotechnologyPeking University Shenzhen Graduate SchoolShenzhenChina
- Shenzhen Bay LaboratoryShenzhenChina
| | - Kaiwu He
- State Key Laboratory of Oncogenomics, School of Chemical Biology and BiotechnologyPeking University Shenzhen Graduate SchoolShenzhenChina
| | - Chengyou Zheng
- State Key Laboratory of Oncogenomics, School of Chemical Biology and BiotechnologyPeking University Shenzhen Graduate SchoolShenzhenChina
| | - Ningning Li
- Tomas Lindahl Nobel Laureate Laboratory, Precision Medicine Research CentreThe Seventh Affiliated Hospital of Sun Yat‐sen UniversityShenzhenChina
| | - Zhi‐Jian Yu
- Department of Infectious Diseases, Huazhong University of Science and Technology Union Shenzhen HospitalShenzhen University School of MedicineShenzhenChina
| | - Shupeng Li
- State Key Laboratory of Oncogenomics, School of Chemical Biology and BiotechnologyPeking University Shenzhen Graduate SchoolShenzhenChina
- Shenzhen Bay LaboratoryShenzhenChina
- Campbell Research Institute, Centre for Addiction and Mental HealthTorontoOntarioCanada
- Department of PsychiatryUniversity of TorontoTorontoOntarioCanada
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23
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Ribeiro Franco PI, do Carmo Neto JR, Guerra RO, Ferreira da Silva PE, Braga YLL, Nunes Celes MR, de Menezes LB, Miguel MP, Machado JR. Melatonin: A look at protozoal and helminths. Biochimie 2024; 219:96-109. [PMID: 37541568 DOI: 10.1016/j.biochi.2023.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/24/2023] [Accepted: 07/29/2023] [Indexed: 08/06/2023]
Abstract
Melatonin is a pleiotropic neurohormone found in different animal, plant, and microorganism species. It is a product resulting from tryptophan metabolism in the pineal gland and is widely known for its ability to synchronize the circadian rhythm to antitumor functions in different types of cancers. The molecular mechanisms responsible for its immunomodulatory, antioxidant and cytoprotective effects involve binding to high-affinity G protein-coupled receptors and interactions with intracellular targets that modulate signal transduction pathways. In vitro and in vivo studies have reported the therapeutic potential of melatonin in different infectious and parasitic diseases. In this review, the protective and pathophysiological roles of melatonin in fighting protozoan and helminth infections and the possible mechanisms involved against these stressors will be discussed.
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Affiliation(s)
- Pablo Igor Ribeiro Franco
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil.
| | - José Rodrigues do Carmo Neto
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Rhanoica Oliveira Guerra
- Departamento de Biologia Celular, Escola de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Priscilla Elias Ferreira da Silva
- Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Ciências Biológicas e Naturais, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil
| | - Yarlla Loyane Lira Braga
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Mara Rúbia Nunes Celes
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Liliana Borges de Menezes
- Escola de Veterinária e Zootecnia, Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, GO, Brazil; Setor de Patologia Geral, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Marina Pacheco Miguel
- Escola de Veterinária e Zootecnia, Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, GO, Brazil; Setor de Patologia Geral, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Juliana Reis Machado
- Departamento de Patologia, Genética e Evolução, Instituto de Ciências Biológicas e Naturais, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil
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24
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Rath MF. Homeobox gene-encoded transcription factors in development and mature circadian function of the rodent pineal gland. J Pineal Res 2024; 76:e12950. [PMID: 38558122 DOI: 10.1111/jpi.12950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/15/2024] [Accepted: 03/11/2024] [Indexed: 04/04/2024]
Abstract
Homeobox genes encode transcription factors that are widely known to control developmental processes. This is also the case in the pineal gland, a neuroendocrine brain structure devoted to nighttime synthesis of the hormone melatonin. Thus, in accordance with high prenatal gene expression, knockout studies have identified a specific set of homeobox genes that are essential for development of the pineal gland. However, as a special feature of the pineal gland, homeobox gene expression persists into adulthood, and gene product abundance exhibits 24 h circadian rhythms. Recent lines of evidence show that some homeobox genes even control expression of enzymes catalyzing melatonin synthesis. We here review current knowledge of homeobox genes in the rodent pineal gland and suggest a model for dual functions of homeobox gene-encoded transcription factors in developmental and circadian mature neuroendocrine function.
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Affiliation(s)
- Martin F Rath
- Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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25
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Kołodziejczyk I, Kaźmierczak A. Melatonin - This is important to know. Sci Total Environ 2024; 919:170871. [PMID: 38340815 DOI: 10.1016/j.scitotenv.2024.170871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
MEL (N-acetyl-5-methoxytryptamine) is a well-known natural compound that controls cellular processes in both plants and animals and is primarily found in plants as a neurohormone. Its roles have been described very broadly, from its antioxidant function related to the photoperiod and determination of seasonal rhythms to its role as a signalling molecule, imitating the action of plant hormones (or even being classified as a prohormone). MEL positively affects the yield and survival of plants by increasing their tolerance to unfavourable biotic and abiotic conditions, which makes MEL widely applicable in ecological farming as a stimulant of growth and development. Thus, it is called a phytobiostimulator. In this review, we discuss the genesis of MEL functions, the presence of MEL at the cellular level and its effects on gene expression and plant development, which can ensure the survival of plants under the conditions they encounter. Moreover, we consider the future application possibilities of MEL in agriculture.
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Affiliation(s)
- Izabela Kołodziejczyk
- Department of Geobotany and Plant Ecology, Institute of Ecology and Environmental Protection, University of Lodz, Lodz 90-236, Banacha 12/16, 90-237, Poland
| | - Andrzej Kaźmierczak
- Department of Cytophysiology, Institute of Experimental Biology Faculty of Biology and Environmental Protection, University of Łódź, Pomorska 141/143, 90-236 Łódź, Poland.
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26
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Felder-Schmittbuhl MP, Hicks D, Ribelayga CP, Tosini G. Melatonin in the mammalian retina: Synthesis, mechanisms of action and neuroprotection. J Pineal Res 2024; 76:e12951. [PMID: 38572848 DOI: 10.1111/jpi.12951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/09/2024] [Accepted: 03/19/2024] [Indexed: 04/05/2024]
Abstract
Melatonin is an important player in the regulation of many physiological functions within the body and in the retina. Melatonin synthesis in the retina primarily occurs during the night and its levels are low during the day. Retinal melatonin is primarily synthesized by the photoreceptors, but whether the synthesis occurs in the rods and/or cones is still unclear. Melatonin exerts its influence by binding to G protein-coupled receptors named melatonin receptor type 1 (MT1) and type 2 (MT2). MT1 and MT2 receptors activate a wide variety of signaling pathways and both receptors are present in the vertebrate photoreceptors where they may form MT1/MT2 heteromers (MT1/2h). Studies in rodents have shown that melatonin signaling plays an important role in the regulation of retinal dopamine levels, rod/cone coupling as well as the photopic and scotopic electroretinogram. In addition, melatonin may play an important role in protecting photoreceptors from oxidative stress and can protect photoreceptors from apoptosis. Critically, melatonin signaling is involved in the modulation of photoreceptor viability during aging and other studies have implicated melatonin in the pathogenesis of age-related macular degeneration. Hence melatonin may represent a useful tool in the fight to protect photoreceptors-and other retinal cells-against degeneration due to aging or diseases.
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Affiliation(s)
- Marie Paule Felder-Schmittbuhl
- Centre National de la Recherche Scientifique, Institut des Neurosciences Cellulaires et Intégratives (UPR 3212), Université de Strasbourg, Strasbourg, France
| | - David Hicks
- Centre National de la Recherche Scientifique, Institut des Neurosciences Cellulaires et Intégratives (UPR 3212), Université de Strasbourg, Strasbourg, France
| | - Christophe P Ribelayga
- Department of Vision Sciences, College of Optometry, University of Houston, Houston, Texas, USA
| | - Gianluca Tosini
- Department of Pharmacology & Toxicology, Neuroscience Institute, Morehouse School of Medicine, Atlanta, Georgia, USA
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27
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Okamoto HH, Cecon E, Nureki O, Rivara S, Jockers R. Melatonin receptor structure and signaling. J Pineal Res 2024; 76:e12952. [PMID: 38587234 DOI: 10.1111/jpi.12952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/05/2024] [Accepted: 03/24/2024] [Indexed: 04/09/2024]
Abstract
Melatonin (5-methoxy-N-acetyltryptamine) binds with high affinity and specificity to membrane receptors. Several receptor subtypes exist in different species, of which the mammalian MT1 and MT2 receptors are the best-characterized. They are members of the G protein-coupled receptor superfamily, preferentially coupling to Gi/o proteins but also to other G proteins in a cell-context-depending manner. In this review, experts on melatonin receptors will summarize the current state of the field. We briefly report on the discovery and classification of melatonin receptors, then focus on the molecular structure of human MT1 and MT2 receptors and highlight the importance of molecular simulations to identify new ligands and to understand the structural dynamics of these receptors. We then describe the state-of-the-art of the intracellular signaling pathways activated by melatonin receptors and their complexes. Brief statements on the molecular toolbox available for melatonin receptor studies and future perspectives will round-up this review.
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Affiliation(s)
- Hiroyuki H Okamoto
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Erika Cecon
- Université Paris Cité, Institut Cochin, INSERM, CNRS, Paris, France
| | - Osamu Nureki
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Silvia Rivara
- Department of Food and Drug, University of Parma, Parma, Italy
| | - Ralf Jockers
- Université Paris Cité, Institut Cochin, INSERM, CNRS, Paris, France
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28
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Klosen P. Thirty-seven years of MT1 and MT2 melatonin receptor localization in the brain: Past and future challenges. J Pineal Res 2024; 76:e12955. [PMID: 38606787 DOI: 10.1111/jpi.12955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/21/2024] [Accepted: 03/31/2024] [Indexed: 04/13/2024]
Abstract
Identifying the target cells of a hormone is a key step in understanding its function. Once the molecular nature of the receptors for a hormone has been established, researchers can use several techniques to detect these receptors. Here I will review the different tools used over the years to localize melatonin receptors and the problems associated with each of these techniques. The radioligand 2-[125I] iodomelatonin was the first tool to allow localization of melatonin receptors on tissue sections. Once the MT1 and MT2 receptors were cloned, in situ hybridization could be used to detect the messenger RNA for these receptors. The deduced amino acid sequences for MT1 and MT2 receptors allowed the production of peptide immunogens to generate antibodies against the MT1 and MT2 receptors. Finally, transgenic reporters driven by the promoter elements of the MT1 and MT2 genes have been used to map the expression of MT1 and MT2 in the brain and the retina. Several issues have complicated the localization of melatonin receptors and the characterization of melatonin target cells over the last three decades. Melatonin receptors are expressed at low levels, leading to sensitivity issues for their detection. The second problem are specificity issues with antibodies directed against the MT1 and MT2 melatonin receptors. These receptors are G protein-coupled receptors and many antibodies directed against such receptors have been shown to present similar problems concerning their specificity. Despite these specificity problems which start to be seriously addressed by recent studies, antibodies will be important tools in the future to identify and phenotype melatonin target cells. However, we will have to be more stringent than previously when establishing their specificity. The results obtained by these antibodies will have to be confronted and be coherent with results obtained by other techniques.
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Affiliation(s)
- Paul Klosen
- Regulation and Disruption of Neuroendocrine Rhythms, Institute of Cellular and Integrative Neurosciences, INCI CNRS UPR-3212, University of Strasbourg, Strasbourg, France
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29
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Helm B, Greives T, Zeman M. Endocrine-circadian interactions in birds: implications when nights are no longer dark. Philos Trans R Soc Lond B Biol Sci 2024; 379:20220514. [PMID: 38310930 PMCID: PMC10838642 DOI: 10.1098/rstb.2022.0514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/18/2023] [Indexed: 02/06/2024] Open
Abstract
Biological clocks are evolved time-keeping systems by which organisms rhythmically coordinate physiology within the body, and align it with rhythms in their environment. Clocks are highly sensitive to light and are at the interface of several major endocrine pathways. Worryingly, exposure to artificial-light-at-night (ALAN) is rapidly increasing in ever more extensive parts of the world, with likely impact on wild organisms mediated by endocrine-circadian pathways. In this overview, we first give a broad-brush introduction to biological rhythms. Then, we outline interactions between the avian clock, endocrine pathways, and environmental and internal modifiers. The main focus of this review is on the circadian hormone, melatonin. We summarize information from avian field and laboratory studies on melatonin and its relationships with behaviour and physiology, including often neglected developmental aspects. When exposed to ALAN, birds are highly vulnerable to disruption of behavioural rhythms and of physiological systems under rhythmic control. Several studies suggest that melatonin is likely a key mediator for a broad range of effects. We encourage further observational and experimental studies of ALAN impact on melatonin, across the full functional range of this versatile signalling molecule, as well as on other candidate compounds at the endocrine-circadian interface. This article is part of the theme issue 'Endocrine responses to environmental variation: conceptual approaches and recent developments'.
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Affiliation(s)
- Barbara Helm
- Swiss Ornithological Institute, Bird Migration Unit, Seerose 1, 6204 Sempach, Switzerland
| | - Timothy Greives
- Department of Biological Sciences, North Dakota State University, Fargo, ND 58102, USA
| | - Michal Zeman
- Department of Animal Physiology and Ethology, Faculty of Natural Sciences, Comenius University, Bratislava SK 84215, Slovakia
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Manzoor MA, Xu Y, Lv Z, Xu J, Wang Y, Sun W, Liu X, Wang L, Abdullah M, Liu R, Jiu S, Zhang C. Comparative genomics of N-acetyl-5-methoxytryptamine members in four Prunus species with insights into bud dormancy and abiotic stress responses in Prunus avium. Plant Cell Rep 2024; 43:89. [PMID: 38462577 DOI: 10.1007/s00299-024-03184-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 02/23/2024] [Indexed: 03/12/2024]
Abstract
KEY MESSAGE This study provides novel insights into the evolution, diversification, and functions of melatonin biosynthesis genes in Prunus species, highlighting their potential role in regulating bud dormancy and abiotic stresses. The biosynthesis of melatonin (MEL) in plants is primarily governed by enzymatic reactions involving key enzymes such as serotonin N-acetyltransferase (SNAT), tryptamine 5-hydroxylase (T5H), N-acetylserotonin methyltransferase (ASMT) and tryptophan decarboxylase (TDC). In this study, we analyzed Melatonin genes in four Prunus species such as Prunus avium (Pavi), Prunus pusilliflora (Ppus), Prunus serulata (Pser), and Prunus persica (Pper) based on comparative genomics approach. Among the four Prunus species, a total of 29 TDCs, 998 T5Hs, 16 SNATs, and 115 ASMTs within the genome of four Prunus genomes. A thorough investigation of melatonin-related genes was carried out using systematic biological methods and comparative genomics. Through phylogenetic analysis, orthologous clusters, Go enrichment, syntenic relationship, and gene duplication analysis, we discovered both similarities and variations in Melatonin genes among these Prunus species. Additionally, our study revealed the existence of unique subgroup members in the Melatonin genes of these species, which were distinct from those found in Arabidopsis genes. Furthermore, the transcriptomic expression analysis revealed the potential significance of melatonin genes in bud dormancy regulation and abiotic stresses. Our extensive results offer valuable perspectives on the evolutionary patterns, intricate expansion, and functions of PavMEL genes. Given their promising attributes, PavTDCs, PavT5H, PavNAT, and three PavASMT genes warrant in-depth exploration as prime candidates for manipulating dormancy in sweet cherry. This was done to lay the foundation for future explorations into the structural and functional aspects of these factors in Prunus species. This study offers significant insights into the functions of ASMT, SNAT, T5H, and TDC genes and sheds light on their roles in Prunus avium. Moreover, it established a robust foundation for further exploration functional characterization of melatonin genes in fruit species.
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Affiliation(s)
- Muhammad Aamir Manzoor
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China
| | - Yan Xu
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China
| | - Zhengxin Lv
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China
| | - Jieming Xu
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China
| | - Yuxuan Wang
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China
| | - Wanxia Sun
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China
| | - Xunju Liu
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China
| | - Li Wang
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China
| | - Muhammad Abdullah
- Queensland Alliance of Agriculture and Food Innovation, The University of Queensland, Brisbane, 4072, Australia
| | - Ruie Liu
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China
| | - Songtao Jiu
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China.
| | - Caixi Zhang
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang District Jianchuan Road No.601, Shanghai, 200240, People's Republic of China.
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Ning C, Xiao W, Liang Z, Wu Y, Fan H, Wang S, Kong X, Wang Y, Wu A, Li Y, Yuan Z, Wu J, Yang C. Melatonin alleviates T-2 toxin-induced oxidative damage, inflammatory response, and apoptosis in piglet spleen and thymus. Int Immunopharmacol 2024; 129:111653. [PMID: 38354511 DOI: 10.1016/j.intimp.2024.111653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/16/2024]
Abstract
T-2 toxin, an unavoidable contaminant in animal feeds, can induce oxidative stress and damage immune organs. Melatonin (MT), a natural and potent antioxidant, has shown promise as a detoxifier for various mycotoxins. However, the detoxifying effect of MT on T-2 toxin has not been previously reported. In order to investigate the protective effect of MT added to diets on the immune system of T-2 toxin-exposed piglets, twenty piglets weaned at 28d of age were randomly divided into control, T-2 toxin (1 mg/kg), MT (5 mg/kg), and T-2 toxin (1 mg/kg) + MT (5 mg/kg) groups(n = 5 per group). Our results demonstrated that MT mitigated T-2 toxin-induced histoarchitectural alterations in the spleen and thymus, such as hemorrhage, decreased white pulp size in the spleen, and medullary cell sparing in the thymus. Further research revealed that MT promoted the expression of Nrf2 and increased the activities of antioxidant enzymes CAT and SOD, while reducing the production of the lipid peroxidation product MDA. Moreover, MT inhibited the NF-κB signaling pathway, regulated the expression of downstream cytokines IL-1β, IL-6, TNF-α, and TGF-β1. MT also suppressed the activation of caspase-3 while down-regulating the ratio of Bax/Bcl-2 to reduce apoptosis. Additionally, MT ameliorated the T-2 toxin-induced disorders of immune cells and immune molecules in the blood. In conclusion, our findings suggest that MT may effectively protect the immune system of piglets against T-2 toxin-induced damage by inhibiting oxidative stress, inflammatory response, and apoptosis in the spleen and thymus. Therefore, MT holds the potential as an antidote for T-2 toxin poisoning.
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Affiliation(s)
- Can Ning
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Wenguang Xiao
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Zengenni Liang
- Hunan Agricultural Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Longping Branch Graduate School, Hunan University, Changsha 410125, China
| | - You Wu
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Hui Fan
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Siqi Wang
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Xiangyi Kong
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Yongkang Wang
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Aoao Wu
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Yuanyuan Li
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Zhihang Yuan
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Jing Wu
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China.
| | - Chenglin Yang
- Hunan Engineering Research Center of Livestock and Poultry Health Care, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China.
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Maleki M, Shojaeiyan A, Mokhtassi-Bidgoli A. Differential responses of two fenugreek (Trigonella foenum-graecum L.) landraces pretreated with melatonin to prolonged drought stress and subsequent recovery. BMC Plant Biol 2024; 24:161. [PMID: 38429697 PMCID: PMC10908034 DOI: 10.1186/s12870-024-04835-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 02/18/2024] [Indexed: 03/03/2024]
Abstract
BACKGROUND Drought impairs growth, disturbs photosynthesis, and induces senescence in plants, which results in crop productivity reduction and ultimately jeopardizes human food security. The objective of this study was to determine major parameters associated with drought tolerance and recovery ability of fenugreek (Trigonella foenum-graecum L.), by examining differential biochemical and phenological responses and underlying enzyme activities as well as melatonin roles during drought stress and re-watering for two contrasting landraces. Moreover, the relative expression of three key genes involved in the biosynthesis pathway of diosgenin, including SQS, CAS, and BG, was investigated. RESULTS Depending on the conditions, drought stress enhanced the activity of antioxidant enzymes and the osmoregulating compounds, non-enzymatic antioxidants, hydrogen peroxide content, and lipid peroxidation levels in most cases. Severe drought stress accelerated flowering time in Shushtar landrace (SHR) but had no significant effects on Varamin (VR). Pretreatment with melatonin delayed flowering time in SHR and caused high drought resistance in this landrace. Furthermore, melatonin significantly enhanced drought adaptability in VR by improving plant recovery ability. DISCUSSION Based on our results plants' responses to drought stress and melatonin pretreatment were completely landrace-specific. Drought stress caused an increase in the relative expression of CAS gene and ultimately the accumulation of steroidal saponins in SHR. Melatonin compensated for the decrease in biomass production due to drought stress and finally increased steroidal saponins performance in SHR. Our study showed that melatonin can improve drought stress and recovery in fenugreek, but different factors such as genotype, melatonin concentration, and plant age should be considered.
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Affiliation(s)
- Masoud Maleki
- Department of Horticultural Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
| | - Abdolali Shojaeiyan
- Department of Horticultural Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
| | - Ali Mokhtassi-Bidgoli
- Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
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Bicer E, Bese T, Tuzun DD, Ilvan S, Kayan BO, Demirkiran F. The Relationship Between Melatonin 1-2 Receptor Expression in Patients With Epithelial Ovarian Cancer and Survival. Int J Gynecol Pathol 2024; 43:190-199. [PMID: 37922887 DOI: 10.1097/pgp.0000000000000968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Melatonin has antiproliferative, antiangiogenic, apoptotic, and immunomodulatory properties in ovarian cancer. Considering those, we evaluated the relationship between melatonin 1 (MT1) and melatonin 2 receptor (MT2) expression in tumor tissues of patients with epithelial ovarian cancer, disease-free survival (DFS), and overall survival (OS). Patients who received primary surgical treatment for epithelial ovarian cancer in our clinic between 2000 and 2019 were retrospectively scanned through patient files, electronic databases, and telephone calls. One hundred forty-two eligible patients were included in the study, their tumoral tissues were examined to determine MT1 and MT2 expression by immunohistochemical methods. The percentage of receptor-positive cells and intensity of staining were determined. MT1 receptor expression ( P = 0.002 for DFS and P = 0.002 for OS) showed a significant effect on DFS and OS. MT2 expression had no effect on survival ( P = 0.593 for DFS and P = 0.209 for OS). The results showed that the higher the MT1 receptor expression, the longer the DFS and OS. It is suggested that melatonin should be considered as adjuvant therapy for ovarian cancer patients in addition to standard treatment, and clinical progress should be observed.
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Bedini A, Elisi GM, Fanini F, Retini M, Scalvini L, Pasquini S, Contri C, Varani K, Spadoni G, Mor M, Vincenzi F, Rivara S. Binding and unbinding of potent melatonin receptor ligands: Mechanistic simulations and experimental evidence. J Pineal Res 2024; 76:e12941. [PMID: 38606814 DOI: 10.1111/jpi.12941] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/04/2024] [Accepted: 01/10/2024] [Indexed: 04/13/2024]
Abstract
The labeled ligand commonly employed in competition binding studies for melatonin receptor ligands, 2-[125I]iodomelatonin, showed slow dissociation with different half-lives at the two receptor subtypes. This may affect the operational measures of affinity constants, which at short incubation times could not be obtained in equilibrium conditions, and structure-activity relationships, as the Ki values of tested ligands could depend on either interaction at the binding site or the dissociation path. To address these issues, the kinetic and saturation binding parameters of 2-[125I]iodomelatonin as well as the competition constants for a series of representative ligands were measured at a short (2 h) and a long (20 h) incubation time. Concurrently, we simulated by molecular modeling the dissociation path of 2-iodomelatonin from MT1 and MT2 receptors and investigated the role of interactions at the binding site on the stereoselectivity observed for the enantiomers of the subtype-selective ligand UCM1014. We found that equilibrium conditions for 2-[125I]iodomelatonin binding can be reached only with long incubation times, particularly for the MT2 receptor subtype, for which a time of 20 h approximates this condition. On the other hand, measured Ki values for a set of ligands including agonists, antagonists, nonselective, and subtype-selective compounds were not significantly affected by the length of incubation, suggesting that structure-activity relationships based on data collected at shorter time reflect different interactions at the binding site. Molecular modeling simulations evidenced that the slower dissociation of 2-iodomelatonin from the MT2 receptor can be related to the restricted mobility of a gatekeeper tyrosine along a lipophilic path from the binding site to the membrane bilayer. The enantiomers of the potent, MT2-selective agonist UCM1014 were separately synthesized and tested. Molecular dynamics simulations of the receptor-ligand complexes provided an explanation for their stereoselectivity as due to the preference shown by the eutomer at the binding site for the most abundant axial conformation adopted by the ligand in solution. These results suggest that, despite the slow-binding kinetics occurring for the labeled ligand, affinity measures at shorter incubation times give robust results consistent with known structure-activity relationships and with interactions taken at the receptor binding site.
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Affiliation(s)
- Annalida Bedini
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino Carlo Bo, Urbino, Italy
| | - Gian Marco Elisi
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parma, Italy
| | - Fabiola Fanini
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino Carlo Bo, Urbino, Italy
| | - Michele Retini
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino Carlo Bo, Urbino, Italy
| | - Laura Scalvini
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parma, Italy
| | - Silvia Pasquini
- Dipartimento di Scienze Chimiche, Farmaceutiche ed Agrarie, Università degli Studi di Ferrara, Ferrara, Italy
| | - Chiara Contri
- Dipartimento di Medicina Traslazionale, Università degli Studi di Ferrara, Ferrara, Italy
| | - Katia Varani
- Dipartimento di Medicina Traslazionale, Università degli Studi di Ferrara, Ferrara, Italy
| | - Gilberto Spadoni
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino Carlo Bo, Urbino, Italy
| | - Marco Mor
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parma, Italy
| | - Fabrizio Vincenzi
- Dipartimento di Medicina Traslazionale, Università degli Studi di Ferrara, Ferrara, Italy
| | - Silvia Rivara
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università degli Studi di Parma, Parma, Italy
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Silva BR, Nascimento DR, Costa FC, Azevedo AV, Paulino LRFM, Aguiar FLN, Batista ALPS, Donato MAM, Silva JRV. Melatonin improves the viability and ultrastructure of bovine oocyte-granulosa complexes of in vitro cultured early antral follicles. Reprod Domest Anim 2024; 59:e14543. [PMID: 38459831 DOI: 10.1111/rda.14543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 11/21/2023] [Accepted: 02/19/2024] [Indexed: 03/10/2024]
Abstract
This study aims to investigate the effects of melatonin on follicular growth, viability and ultrastructure, as well as on the levels of mRNA for antioxidant enzymes, reactive oxygen species (ROS) and meiotic progression in oocytes from in vitro cultured bovine early antral follicles. To this end, isolated early antral follicles (500-600 μm) were cultured in TCM-199+ alone or supplemented with 10-6 , 10-7 or 10-8 M melatonin at 38.5°C with 5% CO2 for 8 days. Follicle diameters were evaluated at days 0, 4 and 8 of culture. At the end of culture, ultrastructure, chromatin configuration, viability (calcein-AM and ethidium homodimer-1 staining), and the levels of ROS and mRNA for catalase (CAT), superoxide dismutase (SOD) and peroxiredoxin 6 (PRDX6) and glutathione peroxidase (GPx) were investigated in oocyte-granulosa cell complexes (OGCs). The results showed that early antral follicles cultured with 10-6 and 10-8 M melatonin had a progressive and significant increase in their diameters throughout the culture period (p < .05). Additionally, oocytes from follicles cultured with 10-7 or 10-8 M melatonin had increased fluorescence for calcein-AM, while those cultured with 10-6 or 10-7 M had reduced fluorescence for ethidium homodimer-1. Different from follicles cultured in other treatments, those cultured with 10-8 M melatonin had well-preserved ultrastructure of oocyte and granulosa cells. Melatonin, however, did not influence the levels of ROS, the mitochondrial activity, oocyte meiotic resumption and expression mRNA for SOD, CAT, GPX1 and PRDX6. In conclusion, the presence of 10-8 M melatonin in culture medium improves viability and preserves the ultrastructure of oocyte and granulosa cells of early antral follicles cultured in vitro.
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Affiliation(s)
- Bianca R Silva
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Sobral, CE, Brazil
| | - Danisvânia R Nascimento
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Sobral, CE, Brazil
| | - Francisco C Costa
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Sobral, CE, Brazil
| | - Antônia V Azevedo
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Sobral, CE, Brazil
| | - Laís R F M Paulino
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Sobral, CE, Brazil
| | - Francisco L N Aguiar
- Department of Veterinary Medicine, Sousa Campus, Federal Institute of Education, Science and Technology of Paraíba, Sousa, Paraíba, Brazil
| | - Ana L P S Batista
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Sobral, CE, Brazil
| | - Mariana A M Donato
- Laboratory of Ultrastructure, CNPqAM/FIOCRUZ, Federal University of Pernambuco, Recife, PE, Brazil
| | - José R V Silva
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Sobral, CE, Brazil
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Zhang G, Ye Z, Jiang Z, Wu C, Ge L, Wang J, Xu X, Wang T, Yang J. Circadian patterns and photoperiodic modulation of clock gene expression and neuroendocrine hormone secretion in the marine teleost Larimichthys crocea. Chronobiol Int 2024; 41:329-346. [PMID: 38516993 DOI: 10.1080/07420528.2024.2315215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 02/01/2024] [Indexed: 03/23/2024]
Abstract
The light/dark cycle, known as the photoperiod, plays a crucial role in influencing various physiological activities in fish, such as growth, feeding and reproduction. However, the underlying mechanisms of this influence are not fully understood. This study focuses on exploring the impact of different light regimes (LD: 12 h of light and 12 h of darkness; LL: 24 h of light and 0 h of darkness; DD: 0 h of light and 24 h of darkness) on the expression of clock genes (LcClocka, LcClockb, LcBmal, LcPer1, LcPer2) and the secretion of hormones (melatonin, GnRH, NPY) in the large yellow croaker, Larimichthys crocea. Real-time quantitative PCR (RT-qPCR) and enzyme-linked immunosorbent assays were utilized to assess how photoperiod variations affect clock gene expression and hormone secretion. The results indicate that changes in photoperiod can disrupt the rhythmic patterns of clock genes, leading to phase shifts and decreased expression. Particularly under LL conditions, the pineal LcClocka, LcBmal and LcPer1 genes lose their rhythmicity, while LcClockb and LcPer2 genes exhibit phase shifts, highlighting the importance of dark phase entrainment for maintaining rhythmicity. Additionally, altered photoperiod affects the neuroendocrine system of L. crocea. In comparison to the LD condition, LL and DD treatments showed a phase delay of GnRH secretion and an acceleration of NPY synthesis. These findings provide valuable insights into the regulatory patterns of circadian rhythms in fish and may contribute to optimizing the light environment in the L. crocea farming industry.
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Affiliation(s)
- Guangbo Zhang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Zhiqing Ye
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Zhijing Jiang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Chenqian Wu
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Lifei Ge
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Jixiu Wang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Xiuwen Xu
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Tianming Wang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
| | - Jingwen Yang
- National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Marine Science College, Zhejiang Ocean University, Zhoushan, Zhejiang, People's Republic of China
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Lempesis IG, Georgakopoulou VE, Reiter RJ, Spandidos DA. A mid‑pandemic night's dream: Melatonin, from harbinger of anti‑inflammation to mitochondrial savior in acute and long COVID‑19 (Review). Int J Mol Med 2024; 53:28. [PMID: 38299237 PMCID: PMC10852014 DOI: 10.3892/ijmm.2024.5352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/23/2024] [Indexed: 02/02/2024] Open
Abstract
Coronavirus disease 2019 (COVID‑19), a systemic illness caused by severe acute respiratory distress syndrome 2 (SARS‑CoV‑2), has triggered a worldwide pandemic with symptoms ranging from asymptomatic to chronic, affecting practically every organ. Melatonin, an ancient antioxidant found in all living organisms, has been suggested as a safe and effective therapeutic option for the treatment of SARS‑CoV‑2 infection due to its good safety characteristics and broad‑spectrum antiviral medication properties. Melatonin is essential in various metabolic pathways and governs physiological processes, such as the sleep‑wake cycle and circadian rhythms. It exhibits oncostatic, anti‑inflammatory, antioxidant and anti‑aging properties, exhibiting promise for use in the treatment of numerous disorders, including COVID‑19. The preventive and therapeutic effects of melatonin have been widely explored in a number of conditions and have been well‑established in experimental ischemia/reperfusion investigations, particularly in coronary heart disease and stroke. Clinical research evaluating the use of melatonin in COVID‑19 has shown various improved outcomes, including reduced hospitalization durations; however, the trials are small. Melatonin can alleviate mitochondrial dysfunction in COVID‑19, improve immune cell function and provide antioxidant properties. However, its therapeutic potential remains underexplored due to funding limitations and thus further investigations are required.
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Affiliation(s)
- Ioannis G. Lempesis
- Department of Pathophysiology, Laiko General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Vasiliki Epameinondas Georgakopoulou
- Department of Pathophysiology, Laiko General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Department of Infectious Diseases-COVID-19 Unit, Laiko General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Russel J. Reiter
- Department of Cellular and Structural Biology, UT Health Science Center, San Antonio, TX 78229, USA
| | - Demetrios A. Spandidos
- Laboratory of Clinical Virology, School of Medicine, University of Crete, 71003 Heraklion, Greece
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Jiang Z, Sang X, Lu J, Gao L. Circadian rhythm of cutaneous pruritus. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2024; 49:190-196. [PMID: 38755715 DOI: 10.11817/j.issn.1672-7347.2024.230397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
One of the most common and significant symptoms for skin disorders is pruritus. Additionally, it serves as a significant catalyst for the exacerbation or reoccurrence of skin diseases. Pruritus seriously affects patients' physical and mental health, and even the quality of life. It brings a heavy burden to the patients, the families, even the whole society. The pathogenesis and regulation mechanisms for pruritus are complicated and have not yet been elucidated. Previous clinical studies have shown that itch worsens at night in scabies, chronic pruritus, atopic dermatitis, and psoriasis, suggesting that skin pruritus may change with circadian rhythm. Cortisol, melatonin, core temperature, cytokines, and prostaglandins are the main regulatory factors of the circadian rhythm of pruritus. Recent studies have shown that some CLOCK genes, such as BMAL1, CLOCK, PER, and CRY, play an important role in the regulation of the circadian rhythm of pruritus by regulating the Janus tyrosine kinase (JAK)-signal transducer and activator of transcription (STAT) and nuclear factor kappa-B (NF-κB) signaling pathways. However, the mechanisms for circadian clock genes in regulation of circadian rhythm of pruritus have not been fully elucidated. Further studies on the mechanism of circadian clock genes in the regulation of circadian rhythm of pruritus will lay a foundation for elucidating the regulatory mechanisms for pruritus, and also provide new ideas for the control of pruritus and the alleviation of skin diseases.
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Affiliation(s)
- Zichao Jiang
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha 410013.
- Xiangya School of Medicine, Central South University, Changsha 410013.
| | - Xiaoxue Sang
- Xiangya Nursing School, Central South University, Changsha 410013, China
| | - Jianyun Lu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha 410013
| | - Lihua Gao
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha 410013.
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Liu L, Li MZ, Yao MH, Yang TN, Tang YX, Li JL. Melatonin inhibits atrazine-induced mitochondrial impairment in cerebellum of mice: Modulation of cGAS-STING-NLRP3 axis-dependent cell pyroptosis. Sci Total Environ 2024; 912:168924. [PMID: 38036146 DOI: 10.1016/j.scitotenv.2023.168924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/19/2023] [Accepted: 11/25/2023] [Indexed: 12/02/2023]
Abstract
The global prevalence of Neurological disorders has increased alarmingly in response to environmental and lifestyle changes. Atrazine (ATZ) is a difficult to degrade soil and water pollutant with well-known neurotoxicity. Melatonin (MT), an antioxidant with chemoprotective properties, has a potential therapeutic effect on cerebellar damage caused by ATZ exposure. The aim of this study was to explore the effects and underlying mechanisms of MT on the cerebellar inflammatory response and pyroptosis induced by ATZ exposure. In this study, C57BL/6J mice were treated with ATZ (170 mg/kg BW/day) and MT (5 mg/kg BW/day) for 28 days. Our results revealed that MT alleviated the histopathological changes, ultrastructural damage, oxidative stress and decrease of mitochondrial membrane potential (ΔΨm) in the cerebellum induced by ATZ exposure. ATZ exposure damaged the mitochondria leading to release of mitochondrial DNA (mtDNA) to the cytoplasm, MT activated the cyclic GMP-AMP synthetase interferon gene stimulator (cGAS-STING) axis to alleviate inflammation and pyroptosis caused by ATZ exposure. In general, our study provided new evidence that the cGAS-STING-NLRP3 axis plays an important role in the treatment of ATZ-induced cerebellar injury by MT.
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Affiliation(s)
- Lin Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Mu-Zi Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Ming-Hui Yao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Tian-Ning Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yi-Xi Tang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, PR China.
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Di H, Zhang C, Zhou A, Huang H, Tang Y, Li H, Huang Z, Zhang F, Sun B. Transcriptome Analysis Reveals the Mechanism by Which Exogenous Melatonin Treatment Delays Leaf Senescence of Postharvest Chinese Kale ( Brassica oleracea var. alboglabra). Int J Mol Sci 2024; 25:2250. [PMID: 38396927 PMCID: PMC10889248 DOI: 10.3390/ijms25042250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Melatonin, a pleiotropic small molecule, is employed in horticultural crops to delay senescence and preserve postharvest quality. In this study, 100 µM melatonin treatment delayed a decline in the color difference index h* and a*, maintaining the content of chlorophyll and carotenoids, thereby delaying the yellowing and senescence of Chinese kale. Transcriptome analysis unequivocally validates melatonin's efficacy in delaying leaf senescence in postharvest Chinese kale stored at 20 °C. Following a three-day storage period, the melatonin treatment group exhibited 1637 differentially expressed genes (DEGs) compared to the control group. DEG analysis elucidated that melatonin-induced antisenescence primarily governs phenylpropanoid biosynthesis, lipid metabolism, plant signal transduction, and calcium signal transduction. Melatonin treatment up-regulated core enzyme genes associated with general phenylpropanoid biosynthesis, flavonoid biosynthesis, and the α-linolenic acid biosynthesis pathway. It influenced the redirection of lignin metabolic flux, suppressed jasmonic acid and abscisic acid signal transduction, and concurrently stimulated auxin signal transduction. Additionally, melatonin treatment down-regulated RBOH expression and up-regulated genes encoding CaM, thereby influencing calcium signal transduction. This study underscores melatonin as a promising approach for delaying leaf senescence and provides insights into the mechanism of melatonin-mediated antisenescence in postharvest Chinese kale.
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Affiliation(s)
| | | | | | | | | | | | | | - Fen Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (H.D.); (C.Z.); (A.Z.); (H.H.); (Y.T.); (H.L.); (Z.H.)
| | - Bo Sun
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (H.D.); (C.Z.); (A.Z.); (H.H.); (Y.T.); (H.L.); (Z.H.)
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Liu Y, Xu J, Lu X, Huang M, Mao Y, Li C, Yu W, Li C. Carbon monoxide is involved in melatonin-enhanced drought resistance in tomato seedlings by enhancing chlorophyll synthesis pathway. BMC Plant Biol 2024; 24:97. [PMID: 38331770 PMCID: PMC10854177 DOI: 10.1186/s12870-024-04793-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Drought is thought to be a major abiotic stress that dramatically limits tomato growth and production. As signal molecule, melatonin (MT) and carbon monoxide (CO) can enhance plant stress resistance. However, the effect and underlying mechanism of CO involving MT-mediated drought resistance in seedling growth remains unknown. In this study, tomato (Solanum lycopersicum L. 'Micro-Tom') seedlings were used to investigate the interaction and mechanism of MT and CO in response to drought stress. RESULTS The growth of tomato seedlings was inhibited significantly under drought stress. Exogenous MT or CO mitigated the drought-induced impairment in a dose-dependent manner, with the greatest efficiency provided by 100 and 500 µM, respectively. But application of hemoglobin (Hb, a CO scavenger) restrained the positive effects of MT on the growth of tomato seedlings under drought stress. MT and CO treatment promoted chlorophyll a (Chl a) and chlorophyll a (Chl b) accumulations. Under drought stress, the intermediate products of chlorophyll biosynthesis such as protoporphyrin IX (Proto IX), Mg-protoporphyrin IX (Mg-Proto IX), potochlorophyllide (Pchlide) and heme were increased by MT or CO, but uroporphyrinogen III (Uro III) content decreased in MT-treated or CO-treated tomato seedlings. Meanwhile, MT or CO up-regulated the expression of chlorophyll and heme synthetic-related genes SlUROD, SlPPOX, SlMGMT, SlFECH, SlPOR, SlChlS, and SlCAO. However, the effects of MT on chlorophyll biosynthesis were almost reversed by Hb. CONCLUSION The results suggested that MT and CO can alleviate drought stress and facilitate the synthesis of Chl and heme in tomato seedlings. CO played an essential role in MT-enhanced drought resistance via facilitating chlorophyll biosynthesis pathway.
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Affiliation(s)
- Yunzhi Liu
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Junrong Xu
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Xuefang Lu
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Mengxiao Huang
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Yuanzhi Mao
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Chuanghao Li
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Wenjin Yu
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Changxia Li
- College of Agriculture, Guangxi University, Nanning, 530004, China.
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Maria Correa L, Moreno RD, Luis Riveros J. Hypothalamic-pituitary-gonadal axis response to photoperiod changes in female guanacos (Lama guanicoe). Gen Comp Endocrinol 2024; 347:114427. [PMID: 38141858 DOI: 10.1016/j.ygcen.2023.114427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/13/2023] [Accepted: 12/13/2023] [Indexed: 12/25/2023]
Abstract
The guanaco, a wild South American camelid, is renowned for its remarkable resilience to extreme conditions. Despite this, little is known about how reproductive hormones in female camelids are influenced during their seasonal breeding period, which occurs during long photoperiod. To explore this, the study investigated the response of the hypothalamic-pituitary-gonadal axis in female guanacos during short days (10L:14D; July) and long days (16L:8D; December) in the Mediterranean ecosystem (33°38'28″S, 70°34'27″W). Blood samples from 14 adult animals were collected, and measurements of melatonin, 17β-estradiol, FSH, and LH concentrations were taken. The results showed that melatonin concentration was lower (P < 0.05) during long days than short days, whereas 17β-estradiol, FSH, and LH concentrations were higher (P < 0.05) during long days compared to short days. Furthermore, the study detected the expression of the melatonin receptor 1A and kisspeptin in the hypothalamus and pituitary, suggesting that the pineal gland of female guanacos is sensitive to seasonal changes in day length. These findings also indicate a seasonal variation in the concentration of reproductive hormones, likely linked to the distinct modulation of the hypothalamic-pituitary-gonadal axis of female guanacos during short and long days.
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Affiliation(s)
- Lina Maria Correa
- Escuela de Medicina Veterinaria, Facultad de Recursos Naturales y Medicina Veterinaria, Universidad Santo Tomás, Carlos Schorr 255, Maule, Talca 3460000, Chile; Centro de Innovación de ovinos para el secano-OVISNOVA, Universidad Santo Tomás, Carlos Schorr 255, Maule, Talca 3460000, Chile; Escuela de postgrado, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 8940000, Chile.
| | - Ricardo D Moreno
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Marcoleta 49, Santiago 8320000, Chile.
| | - José Luis Riveros
- Escuela de postgrado, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 8940000, Chile; Departamento de Ciencias Animales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 8940000, Chile.
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Yi YJ, Tang H, Pi PL, Zhang HW, Du SY, Ge WY, Dai Q, Zhao ZY, Li J, Sun Z. Melatonin in cancer biology: pathways, derivatives, and the promise of targeted delivery. Drug Metab Rev 2024; 56:62-79. [PMID: 38226647 DOI: 10.1080/03602532.2024.2305764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/10/2024] [Indexed: 01/17/2024]
Abstract
Melatonin, historically recognized for its primary role in regulating circadian rhythms, has expanded its influence particularly due to its wide range of biological activities. It has firmly established itself in cancer research. To highlight its versatility, we delved into how melatonin interacts with key signaling pathways, such as the Wnt/β-Catenin, PI3K, and NF-κB pathways, which play foundational roles in tumor development and progression. Notably, melatonin can intricately modulate these pathways, potentially affecting various cellular functions such as apoptosis, metastasis, and immunity. Additionally, a comprehensive review of current clinical studies provides a dual perspective. These studies confirm melatonin's potential in cancer management but also underscore its inherent limitations, particularly its limited bioavailability, which often relegates it to a supplementary role in treatments. Despite this limitation, there is an ongoing quest for innovative solutions and current advancements include the development of melatonin derivatives and cutting-edge delivery systems. By synthesizing the past, present, and future, this review provides a detailed overview of melatonin's evolving role in oncology, positioning it as a potential cornerstone in future cancer therapeutics.
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Affiliation(s)
- Yu-Juan Yi
- Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Hong Tang
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Peng-Lai Pi
- Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, China
| | | | - Si-Yu Du
- Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Wei-Ye Ge
- Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Qi Dai
- Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Zi-Yan Zhao
- Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Jia Li
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zheng Sun
- Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, China
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Rafiyian M, Gouyandeh F, Saati M, Davoodvandi A, Rasooli Manesh SM, Asemi R, Sharifi M, Asemi Z. Melatonin affects the expression of microRNA-21: A mini-review of current evidence. Pathol Res Pract 2024; 254:155160. [PMID: 38277748 DOI: 10.1016/j.prp.2024.155160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Abstract
Melatonin (MLT) is an endogenous hormone produced by pineal gland which possess promising anti-tumor effects. Anti-inflammatory and anti-oxidant properties of MLT, along with its immunomodulatory, proapoptotic, and anti-angiogenic properties, are often referred to the main mechanisms of its anti-tumor effects. Recent evidence has suggested that epigenetic alterations are also involved in the anti-tumor properties of MLT. Among these MLT-induced epigenetic alterations is modulation of the expression of several oncogenic and tumor suppressor microRNAs(miRNAs). MiRNAs are among the most promising and potential therapeutic and diagnostic tools in different diseases and enhanced the development of better therapeutic drugs. Suppression of oncomicroRNAs such as microRNA-21, - 20a, and - 27a as well as, up-regulation of microRNA-34 a/c are among the most important effects of MLT on microRNAs homeostasis. Recently, miR-21 has attracted the attention of scientists due to the its wide range of effects on different cancers and diseases. Regulation of this RNA may be a key to the development of better therapeutic targets. The present review will summarize the findings of in vitro and experimental studies of MLT-induced impacts on the expression of microRNAs which are involved in different models and numerous stages of tumor initiation, growth, metastasis, and chemo-resistance.
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Affiliation(s)
- Mahdi Rafiyian
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran; Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Farzaneh Gouyandeh
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Maryam Saati
- Department of Nursing, Semnan Branch, Islamic Azad University, Semnan, Islamic Republic of Iran
| | - Amirhossein Davoodvandi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran; Cancer Immunology Project (CIP), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | | | - Reza Asemi
- Department of Internal Medicine, School of Medicine, Cancer Prevention Research Center, Seyyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehran Sharifi
- Department of Internal Medicine, School of Medicine, Cancer Prevention Research Center, Seyyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Mori K, Komatsu T, Fujiwara Y, Fujita Y. Comparison of the Effects of Desflurane and Sevoflurane on Variations in Salivary Melatonin and Sleep Disturbance After Total Knee Arthroplasty: A Single-center, Prospective, Randomized, Controlled, Open-label Study. J Perianesth Nurs 2024; 39:101-108. [PMID: 37791946 DOI: 10.1016/j.jopan.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 05/22/2023] [Accepted: 07/16/2023] [Indexed: 10/05/2023]
Abstract
PURPOSE Anesthesia has been shown to disrupt the circadian rhythm. Recovery of the circadian rhythm after general anesthesia might help alleviate symptoms of insomnia and postoperative delirium. We hypothesized that recovery of the circadian rhythm is faster after total knee arthroplasty (TKA) with desflurane than with sevoflurane. This study compared the influence of sevoflurane versus desflurane anesthesia on the postoperative circadian rhythm of melatonin in adults undergoing TKA. DESIGN Single-center, prospective, randomized, controlled, open-label study. METHODS This study involved adult patients undergoing TKA at a university hospital in Japan from May 1, 2018 to December 31, 2019. The primary outcome of the study was the comparison of the effect of sevoflurane and desflurane on the circadian rhythm of salivary melatonin for 3 days postoperatively. The secondary outcomes were postoperative fatigue and sleep quality for 3 days postoperatively. FINDINGS Twenty-eight patients (American Society of Anesthesiologists physical status of I or II) were scheduled for TKA and randomized to receive sevoflurane (n = 14) or desflurane (n = 14) anesthesia. There was no significant difference in the melatonin concentration between the sevoflurane and desflurane groups. The salivary melatonin concentration after sevoflurane or desflurane anesthesia was significantly higher at 9:00 p.m. on a postoperative day (POD)0 and POD1 than on POD3 (P < .05). Patients in the desflurane group had significantly greater fatigue than those in the sevoflurane group at 7:00 a.m. and 12:00 p.m. on POD3 (P < .05). Patients in the sevoflurane group had a deeper sleep than those in the desflurane group on POD0 (P < .05). In the sevoflurane group, the sleep time during the night of POD2 was longer than that on POD0 (6.1 vs 4.2 hours, P < .05). CONCLUSIONS Under the current study conditions, desflurane was equivalent to sevoflurane in terms of the postoperative salivary melatonin concentration and sleep disturbance after TKA but not in terms of recovering the postoperative circadian rhythm.
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Affiliation(s)
- Kazunao Mori
- Nurse Practitioner Office, Aichi Medical University Hospital, Nagakute, Aichi, Japan.
| | - Toru Komatsu
- Department of Anesthesiology, Aichi Medical University, Nagakute, Aichi, Japan
| | | | - Yoshihito Fujita
- Department of Anesthesiology, Aichi Medical University, Nagakute, Aichi, Japan
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Ameen M, Zafar A, Mahmood A, Zia MA, Kamran K, Javaid MM, Yasin M, Khan BA. Melatonin as a master regulatory hormone for genetic responses to biotic and abiotic stresses in model plant Arabidopsis thaliana: a comprehensive review. Funct Plant Biol 2024; 51:FP23248. [PMID: 38310885 DOI: 10.1071/fp23248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/09/2024] [Indexed: 02/06/2024]
Abstract
Melatonin is a naturally occurring biologically active amine produced by plants, animals and microbes. This review explores the biosynthesis of melatonin in plants, with a particular focus on its diverse roles in Arabidopsis thaliana , a model species. Melatonin affects abiotic and biotic stress resistance in A. thaliana . Exogenous and endogenous melatonin is addressed in association with various conditions, including cold stress, high light stress, intense heat and infection with Botrytis cinerea or Pseudomonas , as well as in seed germination and lateral root formation. Furthermore, melatonin confers stress resistance in Arabidopsis by initiating the antioxidant system, remedying photosynthesis suppression, regulating transcription factors involved with stress resistance (CBF, DREB, ZAT, CAMTA, WRKY33, MYC2, TGA) and other stress-related hormones (abscisic acid, auxin, ethylene, jasmonic acid and salicylic acid). This article additionally addresses other precursors, metabolic components, expression of genes (COR , CBF , SNAT , ASMT , PIN , PR1 , PDF1.2 and HSFA ) and proteins (JAZ, NPR1) associated with melatonin and reducing both biological and environmental stressors. Furthermore, the future perspective of melatonin rich agri-crops is explored to enhance plant tolerance to abiotic and biotic stresses, maximise crop productivity and enhance nutritional worth, which may help improve food security.
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Affiliation(s)
- Muaz Ameen
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Asma Zafar
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Athar Mahmood
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Muhammad Anjum Zia
- Department of Biochemistry, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Kashif Kamran
- Department of Physics, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Muhammad Mansoor Javaid
- Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha 40100, Pakistan
| | - Muhammad Yasin
- Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha 40100, Pakistan
| | - Bilal Ahmad Khan
- Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha 40100, Pakistan
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He M, Geng G, Mei S, Wang G, Yu L, Xu Y, Wang Y. Melatonin modulates the tolerance of plants to water stress: morphological response of the molecular mechanism. Funct Plant Biol 2024; 51:FP23199. [PMID: 38354692 DOI: 10.1071/fp23199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 01/24/2024] [Indexed: 02/16/2024]
Abstract
Water stress (drought and waterlogging) leads to an imbalance in plant water distribution, disrupts cell homeostasis, and severely inhibits plant growth. Melatonin is a growth hormone that plants synthesise and has been shown to resist adversity in many plants. This review discusses the biosynthesis and metabolism of melatonin, as well as the changes in plant morphology and physiological mechanisms caused by the molecular defence process. Melatonin induces the expression of related genes in the process of plant photosynthesis under stress and protects the structural integrity of chloroplasts. Exogenous melatonin can maintain the dynamic balance of root ion exchange under waterlogging stress. Melatonin can repair mitochondria and alleviate damage caused by reactive oxygen species and reactive nitrogen species; and has a wide range of uses in the regulation of stress-specific genes and the activation of antioxidant enzyme genes. Melatonin improves the stability of membrane lipids in plant cells and maintains osmotic balance by regulating water channels. There is crosstalk between melatonin and other hormones, which jointly improve the ability of the root system to absorb water and breathe and promote plant growth. Briefly, as a multifunctional molecule, melatonin improves the tolerance of plants under water stress and promotes plant growth and development.
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Affiliation(s)
- Minmin He
- National Sugar Crop Improvement Centre, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China; and Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & College of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150500, China; and Heilongjiang Sugar Beet Engineering Technology Research Center, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China
| | - Gui Geng
- National Sugar Crop Improvement Centre, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China; and Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & College of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150500, China; and Heilongjiang Sugar Beet Engineering Technology Research Center, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China
| | - Shuyang Mei
- National Sugar Crop Improvement Centre, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China; and Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & College of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150500, China; and Heilongjiang Sugar Beet Engineering Technology Research Center, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China
| | - Gang Wang
- National Sugar Crop Improvement Centre, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China; and Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & College of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150500, China; and Heilongjiang Sugar Beet Engineering Technology Research Center, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China
| | - Lihua Yu
- National Sugar Crop Improvement Centre, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China; and Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & College of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150500, China; and Heilongjiang Sugar Beet Engineering Technology Research Center, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China
| | - Yao Xu
- National Sugar Crop Improvement Centre, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China; and Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & College of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150500, China; and Heilongjiang Sugar Beet Engineering Technology Research Center, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China
| | - Yuguang Wang
- National Sugar Crop Improvement Centre, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China; and Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & College of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150500, China; and Heilongjiang Sugar Beet Engineering Technology Research Center, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China
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Zhang B, Zhong Y, Du J, Ye R, Fan B, Deng Y, Bai R, Feng Y, Yang X, Huang Y, Liang B, Zheng J, Rong W, Yang X, Huang Z. 1,2-Dichloroethane induces testicular pyroptosis by activating piR-mmu-1019957/IRF7 pathway and the protective effects of melatonin. Environ Int 2024; 184:108480. [PMID: 38341879 DOI: 10.1016/j.envint.2024.108480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/10/2024] [Accepted: 02/02/2024] [Indexed: 02/13/2024]
Abstract
1,2-Dichloroethane (1,2-DCE) is a prevalent environmental contaminant, and our study revealed its induction of testicular toxicity in mice upon subacute exposure. Melatonin, a prominent secretory product of the pineal gland, has been shown to offer protection against pyroptosis in male reproductive toxicity. However, the exact mechanism underlying 1,2-DCE-induced testicular toxicity and the comprehensive extent of melatonin's protective effects in this regard remain largely unexplored. Therefore, we sequenced testis piRNAs in mice exposed to environmentally relevant concentrations of 1,2-DCE by 28-day dynamic inhalation, and investigated the role of key piRNAs using GC-2 spd cells. Our results showed that 1,2-DCE induced mouse testicular damage and GC-2 spd cell pyroptosis. 1,2-DCE upregulated the expression of pyroptosis-correlated proteins in both mouse testes and GC-2 spd cells. 1,2-DCE exposure caused pore formation on cellular membranes and lactate dehydrogenase leakage in GC-2 spd cells. Additionally, we identified three upregulated piRNAs in 1,2-DCE-exposed mouse testes, among which piR-mmu-1019957 induced pyroptosis in GC-2 spd cells, and its inhibition alleviated 1,2-DCE-induced pyroptosis. PiR-mmu-1019957 mimic and 1,2-DCE treatment activated the expression of interferon regulatory factor 7 (IRF7) in GC-2 spd cells. IRF7 knockdown reversed 1,2-DCE-induced cellular pyroptosis, and overexpression of piR-mmu-1019957 did not promote pyroptosis when IRF7 was inhibited. Notably, melatonin reversed 1,2-DCE-caused testicular toxicity, cellular pyroptosis, and upregulated piR-mmu-1019957 and IRF7. Collectively, our findings indicated that melatonin mitigates this effect, suggesting its potential as a therapeutic intervention against 1,2-DCE-induced male reproductive toxicity in clinical practice.
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Affiliation(s)
- Bingli Zhang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yizhou Zhong
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Jiaxin Du
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Rongyi Ye
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Bingchi Fan
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yanhong Deng
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Ruobing Bai
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yu Feng
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Xiaohong Yang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yuji Huang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Boxuan Liang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Jiewei Zheng
- Department of Toxicology, Guangdong Provincial Hospital for Occupational Disease Prevention and Treatment, Guangzhou 510300, China
| | - Weifeng Rong
- Institute of Chemical Surveillance, Guangdong Provincial Hospital for Occupational Disease Prevention and Treatment, Guangzhou 510300, China
| | - Xingfen Yang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Zhenlie Huang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China.
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Pandey A, Hoover M, Singla M, Bedi Y, Storaci H, Goodman SB, Chan C, Bhutani N. TET1 Regulates Skeletal Stem-Cell Mediated Cartilage Regeneration. Arthritis Rheumatol 2024; 76:216-230. [PMID: 37610277 DOI: 10.1002/art.42678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 08/02/2023] [Accepted: 08/15/2023] [Indexed: 08/24/2023]
Abstract
OBJECTIVE Adult skeletal stem cells (SSCs) that give rise to chondrocytes, osteocytes, and stromal cells as progeny have been shown to contribute to cartilage regeneration in osteoarthritis (OA). Understanding extrinsic and intrinsic regulators of SSC fate and function can therefore identify putative candidate factors to enhance cartilage regeneration. This study explores how the DNA hydroxymethylase Tet1 regulates SSC function in OA. METHODS We investigated the differences in the SSC lineage tree and differentiation potential in neonatal and adult Tet1+/+ and Tet1-/- mice with and without injury and upon OA induction and progression. Using RNA sequencing, the transcriptomic differences between SSCs and bone cartilage stroma progenitor cells (BCSPs) were identified in Tet1+/+ mice and Tet1-/- mice. RESULTS Loss of Tet1 skewed the SSC lineage tree by expanding the SSC pool and enhanced the chondrogenic potential of SSCs and BCSPs. Tet1 inhibition led to enhanced chondrogenesis in human SSCs and chondroprogenitors isolated from human cartilage. Importantly, TET1 inhibition in vivo in late stages of a mouse model of OA led to increased cartilage regeneration. Transcriptomic analyses of SSCs and BCSPs lacking Tet1 revealed pathway alterations in transforming growth factor β signaling, melatonin degradation, and cartilage development-associated genes. Lastly, we report that use of the hormone melatonin can dampen inflammation and improve cartilage health. CONCLUSION Although Tet1 is a broad epigenetic regulator, melatonin can mimic the inhibition ability of TET1 to enhance the chondrogenic ability of SSCs. Melatonin administration has the potential to be an attractive stem cell-based therapy for cartilage regeneration.
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50
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Gao T, Liu X, Xu S, Yu X, Zhang D, Tan K, Zhou Y, Jia X, Zhang Z, Ma F, Li C. Melatonin confers tolerance to nitrogen deficiency through regulating MdHY5 in apple plants. Plant J 2024; 117:1115-1129. [PMID: 37966861 DOI: 10.1111/tpj.16542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/29/2023] [Indexed: 11/16/2023]
Abstract
Nitrogen (N) is an essential nutrient for crop growth and development, significantly influencing both yield and quality. Melatonin (MT), a known enhancer of abiotic stress tolerance, has been extensively studied. However, its relationship with nutrient stress, particularly N deficiency, and the underlying regulatory mechanisms of MT on N absorption remain unclear. In this study, exogenous MT treatment was found to improve the tolerance of apple plants to N deficiency. Apple plants overexpressing the MT biosynthetic gene N-acetylserotonin methyltransferase 9 (MdASMT9) were used to further investigate the effects of endogenous MT on low-N stress. Overexpression of MdASMT9 improved the light harvesting and heat transfer capability of apple plants, thereby mitigating the detrimental effects of N deficiency on the photosynthetic system. Proteomic and physiological data analyses indicated that MdASMT9 overexpression enhanced the trichloroacetic acid cycle and positively modulated amino acid metabolism to counteract N-deficiency stress. Additionally, both exogenous and endogenous MT promoted the transcription of MdHY5, which in turn bound to the MdNRT2.1 and MdNRT2.4 promoters and activated their expression. Notably, MT-mediated promotion of MdNRT2.1 and MdNRT2.4 expression through regulating MdHY5, ultimately enhancing N absorption. Taken together, these findings shed light on the association between MdASMT9-mediated MT biosynthesis and N absorption in apple plants under N-deficiency conditions.
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Affiliation(s)
- Tengteng Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xiaomin Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Shuo Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xi Yu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Danni Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Kexin Tan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yi Zhou
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xumei Jia
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Zhijun Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Chao Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
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