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Sun F, Huang X, Wang H, Lin B, Li H, Wang X, Liu Q. Exploring Dimethylsulfoniopropionate as a potential treatment for Alzheimer's disease: A study using the 3 × Tg-AD mouse model. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155788. [PMID: 38838634 DOI: 10.1016/j.phymed.2024.155788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 05/14/2024] [Accepted: 05/27/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Alzheimer's disease (AD), the most common neurodegenerative disorder, affects a broad spectrum of aging populations. AD is characterized by pathological amyloid-β (Aβ) plaques and neurofibrillary tangles, leading to neural degeneration and cognitive decline. The lack of effective treatments for AD highlights the urgent need for novel therapeutic agents, particularly in the early stages. Dimethylsulfoniopropionate (DMSP) is a natural marine compound with antioxidant and neuroprotective properties. However, studies on the efficacy of DMSP in the treatment of AD and its associated mechanisms are limited. PURPOSE This study aimed to explore the therapeutic effects and mechanisms of action of DMSP as an AD treatment using a preclinical 3 × Tg-AD mouse model. METHODS The research involved administering DMSP (7 μg/mL and 11 μg/mL in drinking water) to four-month-old 3 × Tg-AD mice consecutively for three months. The Y-maze test, novel object recognition test, and Morris water maze test were used to assess memory and learning ability. The relative expression levels and distribution of proteins relevant to Aβ and tau pathology, synapses, and glial cells were analyzed using western blotting and immunofluorescence assays. Additionally, proteomic and bioinformatics approaches were used to explore the potential targets of DMSP treatment. RESULTS DMSP-treated AD mice showed significantly enhanced cognitive function, suggesting that DMSP mitigates memory and learning impairments in AD. Moreover, DMSP diminished the abnormal accumulation of Aβ and phosphorylated tau in both the cortex and hippocampus, which are crucial hallmarks of AD pathology. In addition to its neuroprotective properties, DMSP restored synaptic density and the expression of synaptic and neuronal proteins, which are essential for proper brain function. DMSP displayed anti-inflammatory properties, as evidenced by its ability to suppress inflammatory astrocytes and maintain microglial homeostasis. Notably, DMSP facilitated the maturation of oligodendrocytes (OLs) from oligodendrocyte progenitor cells (OPCs), a critical process in the development of the brain myelination architecture. Proteomic analysis revealed that DMSP positively influenced biological processes crucial for oligodendrocyte development, myelination, and axonal ensheathment, which are often compromised in patients with AD. Protein validation and brain tissue staining supported the role of DMSP in preserving myelin enrichment and sheath integrity. These therapeutic effects were largely attributed to the enhanced expression of myelin-associated glycoprotein (Mag) and tetraspanin Cd9. CONCLUSION Overall, our findings highlight DMSP as a promising novel therapeutic candidate for AD, offering multifaceted benefits in cognitive and memory enhancement, reduction of Aβ and tau pathology, neuronal synapse protection, anti-inflammatory effects, and myelin sheath restoration as an innovative target compared to other studies. In addition to being a potentially effective treatment for AD, DMSP may also have the potential to address other neurodegenerative diseases that are closely associated with myelin impairment.
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Affiliation(s)
- Fanfan Sun
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences & Oceanography, Shenzhen University, Shenzhen 518055, China; Key Laboratory of Optoelectronic Devices and System of Ministry of Education and Guangdong Province, College Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Xuelian Huang
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences & Oceanography, Shenzhen University, Shenzhen 518055, China
| | - Hongshuang Wang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Baoyi Lin
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences & Oceanography, Shenzhen University, Shenzhen 518055, China
| | - Hongyuan Li
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Xiaohui Wang
- Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China; Beijing National Laboratory for Molecular Sciences, Beijing 100190, China.
| | - Qiong Liu
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences & Oceanography, Shenzhen University, Shenzhen 518055, China; Key Laboratory of Optoelectronic Devices and System of Ministry of Education and Guangdong Province, College Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; Shenzhen-Hong Kong Institute of Brain Science, Shenzhen 518033, China.
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Roager L, Athena-Vasileiadi D, Gram L, Sonnenschein EC. Antagonistic activity of Phaeobacter piscinae against the emerging fish pathogen Vibrio crassostreae in aquaculture feed algae. Appl Environ Microbiol 2024; 90:e0143923. [PMID: 38349149 PMCID: PMC10952492 DOI: 10.1128/aem.01439-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/21/2023] [Indexed: 03/21/2024] Open
Abstract
Aquaculture provides a rich resource of high-quality protein; however, the production is challenged by emerging pathogens such as Vibrio crassostreae. While probiotic bacteria have been proposed as a sustainable solution to reduce pathogen load in aquaculture, their application requires a comprehensive assessment across the aquaculture food chain. The purpose of this study was to determine the antagonistic effect of the potential probiotic bacterium Phaeobacter piscinae against the emerging fish pathogen V. crassostreae in aquaculture feed algae that can be an entry point for pathogens in fish and shellfish aquaculture. P. piscinae strain S26 produces the antibacterial compound tropodithietic acid (TDA). In a plate-based assay, P. piscinae S26 was equally to more effective than the well-studied Phaeobacter inhibens DSM17395 in its inhibition of the fish pathogens Vibrio anguillarum 90-11-286 and V. crassostreae DMC-1. When co-cultured with the microalgae Tetraselmis suecica and Isochrysis galbana, P. piscinae S26 reduced the maximum cell density of V. crassostreae DMC-1 by 2 log and 3-4 log fold, respectively. A TDA-deficient mutant of P. piscinae S26 inhibited V. crassostreae DMC-1 to a lesser extent than the wild type, suggesting that the antagonistic effect involves TDA and other factors. TDA is the prime antagonistic agent of the inhibition of V. anguillarum 90-11-286. Comparative genomics of V. anguillarum 90-11-286 and V. crassostreae DMC-1 revealed that V. crassostreae DMC-1 carries a greater arsenal of antibiotic resistance genes potentially contributing to the reduced effect of TDA. In conclusion, P. piscinae S26 is a promising new candidate for inhibition of emerging pathogens such as V. crassostreae DMC-1 in algal feed systems and could contribute to a more sustainable aquaculture industry.IMPORTANCEThe globally important production of fish and shellfish in aquaculture is challenged by disease outbreaks caused by pathogens such as Vibrio crassostreae. These outbreaks not only lead to substantial economic loss and environmental damage, but treatment with antibiotics can also lead to antibiotic resistance affecting human health. Here, we evaluated the potential of probiotic bacteria, specifically the newly identified strain Phaeobacter piscinae S26, to counteract these threats in a sustainable manner. Through a systematic assessment of the antagonistic effect of P. piscinae S26 against V. crassostreae DMC-1, particularly within the context of algal feed systems, the study demonstrates the effectiveness of P. piscinae S26 as probiotic and thereby provides a strategic pathway for addressing disease outbreaks in aquaculture. This finding has the potential of significantly contributing to the long-term stability of the industry, highlighting the potential of probiotics as an efficient and environmentally conscious approach to safeguarding aquaculture productivity against the adverse impact of pathogens.
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Affiliation(s)
- Line Roager
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | | | - Lone Gram
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Eva C. Sonnenschein
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
- Swansea University, College of Science and Engineering, Swansea, Wales, United Kingdom
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Adarshan S, Sree VSS, Muthuramalingam P, Nambiar KS, Sevanan M, Satish L, Venkidasamy B, Jeelani PG, Shin H. Understanding Macroalgae: A Comprehensive Exploration of Nutraceutical, Pharmaceutical, and Omics Dimensions. PLANTS (BASEL, SWITZERLAND) 2023; 13:113. [PMID: 38202421 PMCID: PMC10780804 DOI: 10.3390/plants13010113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/17/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024]
Abstract
Driven by a surge in global interest in natural products, macroalgae or seaweed, has emerged as a prime source for nutraceuticals and pharmaceutical applications. Characterized by remarkable genetic diversity and a crucial role in marine ecosystems, these organisms offer not only substantial nutritional value in proteins, fibers, vitamins, and minerals, but also a diverse array of bioactive molecules with promising pharmaceutical properties. Furthermore, macroalgae produce approximately 80% of the oxygen in the atmosphere, highlighting their ecological significance. The unique combination of nutritional and bioactive attributes positions macroalgae as an ideal resource for food and medicine in various regions worldwide. This comprehensive review consolidates the latest advancements in the field, elucidating the potential applications of macroalgae in developing nutraceuticals and therapeutics. The review emphasizes the pivotal role of omics approaches in deepening our understanding of macroalgae's physiological and molecular characteristics. By highlighting the importance of omics, this review also advocates for continued exploration and utilization of these extraordinary marine organisms in diverse domains, including drug discovery, functional foods, and other industrial applications. The multifaceted potential of macroalgae warrants further research and development to unlock their full benefits and contribute to advancing global health and sustainable industries.
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Affiliation(s)
- Sivakumar Adarshan
- Department of Biotechnology, Alagappa University, Karaikudi 630003, Tamil Nadu, India;
| | - Vairavel Sivaranjani Sivani Sree
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamil Nadu, India; (V.S.S.S.); (K.S.N.); (M.S.)
| | - Pandiyan Muthuramalingam
- Division of Horticultural Science, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52725, Republic of Korea;
- Department of Oral and Maxillofacial Surgery, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha Dental College and Hospitals, Saveetha University, Chennai 600077, Tamil Nadu, India;
| | - Krishnanjana S Nambiar
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamil Nadu, India; (V.S.S.S.); (K.S.N.); (M.S.)
| | - Murugan Sevanan
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamil Nadu, India; (V.S.S.S.); (K.S.N.); (M.S.)
| | - Lakkakula Satish
- Applied Phycology and Biotechnology Division, Marine Algal Research Station, CSIR—Central Salt and Marine Chemicals Research Institute, Mandapam 623519, Tamil Nadu, India;
| | - Baskar Venkidasamy
- Department of Oral and Maxillofacial Surgery, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha Dental College and Hospitals, Saveetha University, Chennai 600077, Tamil Nadu, India;
| | - Peerzada Gh Jeelani
- Department of Biotechnology, Microbiology & Bioinformatics, National College Trichy, Tiruchirapalli 620001, Tamil Nadu, India;
| | - Hyunsuk Shin
- Division of Horticultural Science, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52725, Republic of Korea;
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Lv S, Qin R, Jiang Y, Lv H, Lu Q, Tao S, Huang L, Liu C, Xu X, Wang Q, Li M, Li Z, Ding Y, Song C, Jiang T, Ma H, Jin G, Xia Y, Wang Z, Geng S, Du J, Lin Y, Hu Z. Association of Maternal Dietary Patterns during Gestation and Offspring Neurodevelopment. Nutrients 2022; 14:730. [PMID: 35215380 PMCID: PMC8878236 DOI: 10.3390/nu14040730] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/30/2022] [Accepted: 01/31/2022] [Indexed: 02/01/2023] Open
Abstract
The health effects of diet are long term and persistent. Few cohort studies have investigated the influence of maternal dietary patterns during different gestational periods on offspring's health outcomes. This study investigated the associations between maternal dietary patterns in the mid- and late-gestation and infant's neurodevelopment at 1 year of age in the Jiangsu Birth Cohort (JBC) Study. A total of 1178 mother-child pairs were available for analysis. A semiquantitative food frequency questionnaire (FFQ) was used to investigate dietary intake at 22-26 and 30-34 gestational weeks (GWs). Neurodevelopment of children aged 1 year old was assessed using Bayley-Ⅲ Screening Test. Principal component analysis (PCA) and Poisson regression were used to extract dietary patterns and to investigate the association between dietary patterns and infant neurodevelopment. After adjusting for potential confounders, the maternal 'Aquatic products, Fresh vegetables and Homonemeae' pattern in the second trimester was associated with a lower risk of being non-competent in cognitive and gross motor development, respectively (cognition: aRR = 0.84; 95% CI 0.74-0.94; gross motor: aRR = 0.80; 95% CI 0.71-0.91), and the similar pattern, 'Aquatic products and Homonemeae', in the third trimester also showed significant association with decreased risk of failing age-appreciate cognitive and receptive communication development (cognition: aRR = 0.89; 95% CI 0.80-0.98; receptive communication: aRR = 0.91; 95% CI 0.84-0.99). Notably, adherence to the dietary pattern with relatively high aquatic and homonemeae products in both trimesters demonstrated remarkable protective effects on child neurodevelopment with the risk of being non-competent in cognitive and gross motor development decreasing by 59% (95% CI 0.21-0.79) and 63% (95% CI 0.18-0.77), respectively. Our findings suggested that adherence to the 'Aquatic products and Homonemeae' dietary pattern during pregnancy may have optimal effects on offspring's neurodevelopment.
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Affiliation(s)
- Siyuan Lv
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Toxicology and Nutritional Science, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Rui Qin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
| | - Yangqian Jiang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
| | - Hong Lv
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
- Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, China
| | - Qun Lu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (Y.D.); (Z.W.)
| | - Shiyao Tao
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
| | - Lei Huang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (Y.D.); (Z.W.)
| | - Cong Liu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
| | - Xin Xu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (Y.D.); (Z.W.)
| | - Qingru Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
| | - Mei Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zhi Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Ye Ding
- Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (Y.D.); (Z.W.)
| | - Ci Song
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
| | - Tao Jiang
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
| | - Hongxia Ma
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
- Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, China
| | - Guangfu Jin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zhixu Wang
- Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (Y.D.); (Z.W.)
| | - Shanshan Geng
- Department of Toxicology and Nutritional Science, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jiangbo Du
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
- Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, China
| | - Yuan Lin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, China
- Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (Y.D.); (Z.W.)
| | - Zhibin Hu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; (S.L.); (R.Q.); (Y.J.); (H.L.); (Q.L.); (S.T.); (L.H.); (C.L.); (X.X.); (Q.W.); (M.L.); (Z.L.); (H.M.); (G.J.); (Y.X.); (Z.H.)
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China;
- Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, China
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Henriksen NNSE, Lindqvist LL, Wibowo M, Sonnenschein EC, Bentzon-Tilia M, Gram L. OUP accepted manuscript. FEMS Microbiol Rev 2022; 46:6517774. [PMID: 35099011 PMCID: PMC9075582 DOI: 10.1093/femsre/fuac007] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 01/24/2022] [Accepted: 01/27/2022] [Indexed: 11/13/2022] Open
Abstract
Many microbial secondary metabolites have been studied for decades primarily because of their antimicrobial properties. However, several of these metabolites also possess nonantimicrobial functions, both influencing the physiology of the producer and their ecological neighbors. An example of a versatile bacterial secondary metabolite with multiple functions is the tropone derivative tropodithietic acid (TDA). TDA is a broad-spectrum antimicrobial compound produced by several members of the Rhodobacteraceae family, a major marine bacterial lineage, within the genera Phaeobacter, Tritonibacter, and Pseudovibrio. The production of TDA is governed by the mode of growth and influenced by the availability of nutrient sources. The antibacterial effect of TDA is caused by disruption of the proton motive force of target microorganisms and, potentially, by its iron-chelating properties. TDA also acts as a signaling molecule, affecting gene expression in other bacteria, and altering phenotypic traits such as motility, biofilm formation, and antibiotic production in the producer. In microbial communities, TDA-producing bacteria cause a reduction of the relative abundance of closely related species and some fast-growing heterotrophic bacteria. Here, we summarize the current understanding of the chemical ecology of TDA, including the environmental niches of TDA-producing bacteria, and the molecular mechanisms governing the function and regulation of TDA.
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Affiliation(s)
| | | | - Mario Wibowo
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts, Plads Bldg. 221, DK-2800 Kgs. Lyngby, Denmark
| | - Eva C Sonnenschein
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts, Plads Bldg. 221, DK-2800 Kgs. Lyngby, Denmark
| | - Mikkel Bentzon-Tilia
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts, Plads Bldg. 221, DK-2800 Kgs. Lyngby, Denmark
| | - Lone Gram
- Corresponding author: Department of Bioechnology and Biomedicine, Technical University of Denmark, Søltofts Plads Bldg. 221, DK-2800 Kgs. Lyngby, Denmark. Tel: +45 23688295; E-mail:
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Duan Y, Petzold M, Saleem‐Batcha R, Teufel R. Bacterial Tropone Natural Products and Derivatives: Overview of their Biosynthesis, Bioactivities, Ecological Role and Biotechnological Potential. Chembiochem 2020; 21:2384-2407. [PMID: 32239689 PMCID: PMC7497051 DOI: 10.1002/cbic.201900786] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 04/02/2020] [Indexed: 12/05/2022]
Abstract
Tropone natural products are non-benzene aromatic compounds of significant ecological and pharmaceutical interest. Herein, we highlight current knowledge on bacterial tropones and their derivatives such as tropolones, tropodithietic acid, and roseobacticides. Their unusual biosynthesis depends on a universal CoA-bound precursor featuring a seven-membered carbon ring as backbone, which is generated by a side reaction of the phenylacetic acid catabolic pathway. Enzymes encoded by separate gene clusters then further modify this key intermediate by oxidation, CoA-release, or incorporation of sulfur among other reactions. Tropones play important roles in the terrestrial and marine environment where they act as antibiotics, algaecides, or quorum sensing signals, while their bacterial producers are often involved in symbiotic interactions with plants and marine invertebrates (e. g., algae, corals, sponges, or mollusks). Because of their potent bioactivities and of slowly developing bacterial resistance, tropones and their derivatives hold great promise for biomedical or biotechnological applications, for instance as antibiotics in (shell)fish aquaculture.
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Affiliation(s)
- Ying Duan
- Faculty of BiologyUniversity of Freiburg79104FreiburgGermany
| | - Melanie Petzold
- Faculty of BiologyUniversity of Freiburg79104FreiburgGermany
| | | | - Robin Teufel
- Faculty of BiologyUniversity of Freiburg79104FreiburgGermany
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Hannan MA, Dash R, Haque MN, Mohibbullah M, Sohag AAM, Rahman MA, Uddin MJ, Alam M, Moon IS. Neuroprotective Potentials of Marine Algae and Their Bioactive Metabolites: Pharmacological Insights and Therapeutic Advances. Mar Drugs 2020; 18:E347. [PMID: 32630301 PMCID: PMC7401253 DOI: 10.3390/md18070347] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/19/2020] [Accepted: 06/25/2020] [Indexed: 12/14/2022] Open
Abstract
Beyond their significant contribution to the dietary and industrial supplies, marine algae are considered to be a potential source of some unique metabolites with diverse health benefits. The pharmacological properties, such as antioxidant, anti-inflammatory, cholesterol homeostasis, protein clearance and anti-amyloidogenic potentials of algal metabolites endorse their protective efficacy against oxidative stress, neuroinflammation, mitochondrial dysfunction, and impaired proteostasis which are known to be implicated in the pathophysiology of neurodegenerative disorders and the associated complications after cerebral ischemia and brain injuries. As was evident in various preclinical studies, algal compounds conferred neuroprotection against a wide range of neurotoxic stressors, such as oxygen/glucose deprivation, hydrogen peroxide, glutamate, amyloid β, or 1-methyl-4-phenylpyridinium (MPP+) and, therefore, hold therapeutic promise for brain disorders. While a significant number of algal compounds with promising neuroprotective capacity have been identified over the last decades, a few of them have had access to clinical trials. However, the recent approval of an algal oligosaccharide, sodium oligomannate, for the treatment of Alzheimer's disease enlightened the future of marine algae-based drug discovery. In this review, we briefly outline the pathophysiology of neurodegenerative diseases and brain injuries for identifying the targets of pharmacological intervention, and then review the literature on the neuroprotective potentials of algal compounds along with the underlying pharmacological mechanism, and present an appraisal on the recent therapeutic advances. We also propose a rational strategy to facilitate algal metabolites-based drug development.
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Affiliation(s)
- Md. Abdul Hannan
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Korea; (M.A.H.); (R.D.); (M.A.)
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh;
| | - Raju Dash
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Korea; (M.A.H.); (R.D.); (M.A.)
| | - Md. Nazmul Haque
- Department of Fisheries Biology and Genetics, Patuakhali Science and Technology University, Patuakhali 8602, Bangladesh;
| | - Md. Mohibbullah
- Department of Fishing and Post Harvest Technology, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka 1207, Bangladesh;
| | - Abdullah Al Mamun Sohag
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh;
| | - Md. Ataur Rahman
- Center for Neuroscience, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea;
| | - Md Jamal Uddin
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea;
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh
| | - Mahboob Alam
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Korea; (M.A.H.); (R.D.); (M.A.)
- Division of Chemistry and Biotechnology, Dongguk University, Gyeongju 780-714, Korea
| | - Il Soo Moon
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Korea; (M.A.H.); (R.D.); (M.A.)
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Sonnenschein EC, Phippen CBW, Bentzon-Tilia M, Rasmussen SA, Nielsen KF, Gram L. Phylogenetic distribution of roseobacticides in the Roseobacter group and their effect on microalgae. ENVIRONMENTAL MICROBIOLOGY REPORTS 2018; 10:383-393. [PMID: 29624899 DOI: 10.1111/1758-2229.12649] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 03/21/2018] [Accepted: 04/02/2018] [Indexed: 06/08/2023]
Abstract
The Roseobacter-group species Phaeobacter inhibens produces the antibacterial tropodithietic acid (TDA) and the algaecidal roseobacticides with both compound classes sharing part of the same biosynthetic pathway. The purpose of this study was to investigate the production of roseobacticides more broadly in TDA-producing roseobacters and to compare the effect of producers and non-producers on microalgae. Of 33 roseobacters analyzed, roseobacticide production was a unique feature of TDA-producing P. inhibens, P. gallaeciensis and P. piscinae strains. One TDA-producing Phaeobacter, 27-4, did not produce roseobacticides, possibly due to a transposable element. TDA-producing Ruegeria and Pseudovibrio did not produce roseobacticides. Addition of roseobacticide-containing bacterial extracts affected the growth of the microalgae Rhodomonas salina, Thalassiosira pseudonana and Emiliania huxleyi, while growth of Tetraselmis suecica was unaffected. During co-cultivation, growth of E. huxleyi was initially stimulated by the roseobacticide producer DSM 17395, while the subsequent decline in algal cell numbers during senescence was enhanced. Strain 27-4 that does not produce roseobacticides had no effect on algal growth. Both bacterial strains, DSM 17395 and 27-4, grew during co-cultivation presumably utilizing algal exudates. Furthermore, TDA-producing roseobacters have potential as probiotics in marine larviculture and it is promising that the live feed Tetraselmis was unaffected by roseobacticides-containing extracts.
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Affiliation(s)
- Eva C Sonnenschein
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Anker Engelundsvej 301, DK-2800 Kgs, Lyngby, Denmark
| | | | - Mikkel Bentzon-Tilia
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Anker Engelundsvej 301, DK-2800 Kgs, Lyngby, Denmark
| | - Silas Anselm Rasmussen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Anker Engelundsvej 301, DK-2800 Kgs, Lyngby, Denmark
| | - Kristian Fog Nielsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Anker Engelundsvej 301, DK-2800 Kgs, Lyngby, Denmark
| | - Lone Gram
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Anker Engelundsvej 301, DK-2800 Kgs, Lyngby, Denmark
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Beyersmann PG, Tomasch J, Son K, Stocker R, Göker M, Wagner-Döbler I, Simon M, Brinkhoff T. Dual function of tropodithietic acid as antibiotic and signaling molecule in global gene regulation of the probiotic bacterium Phaeobacter inhibens. Sci Rep 2017; 7:730. [PMID: 28389641 PMCID: PMC5429656 DOI: 10.1038/s41598-017-00784-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 03/13/2017] [Indexed: 01/12/2023] Open
Abstract
Antibiotics are typically regarded as microbial weapons, but whereas their function at concentrations lethal for bacteria is often well characterized, the role of antibiotics at much lower concentrations as possibly found under natural conditions remains poorly understood. By using whole-transcriptome analyses and phenotypic screenings of the marine bacterium Phaeobacter inhibens we found that the broad-spectrum antibiotic tropodithietic acid (TDA) causes the same regulatory effects in quorum sensing (QS) as the common signaling molecule N-acyl-homoserine lactone (AHL) at concentrations 100-fold lower than the minimal inhibitory concentration against bacteria. Our results show that TDA has a significant impact on the expression of ~10% of the total genes of P. inhibens, in the same manner as the AHL. Furthermore, TDA needs the AHL associated LuxR-type transcriptional regulator, just as the AHL molecule. Low concentrations of antibiotics can obviously have a strong influence on the global gene expression of the bacterium that produces it and drastically change the metabolism and behaviour of the bacterium. For P. inhibens this includes motility, biofilm formation and antibiotic production, all important for settlement on new host-associated surfaces. Our results demonstrate that bacteria can produce antibiotics not only to antagonise other bacteria, but also to mediate QS like endogenous AHL molecules.
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Affiliation(s)
- Paul G Beyersmann
- Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, 26129, Oldenburg, Germany
| | - Jürgen Tomasch
- Helmholtz Centre for Infection Research, 38124, Braunschweig, Germany
| | - Kwangmin Son
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Roman Stocker
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Environmental Engineering, Department of Civil, Environmental and Geomatic Engineering, Eidgenössische Technische Hochschule (ETH) Zürich, Zurich, 8093, Switzerland
| | - Markus Göker
- Leibniz-Institute DSMZ - German Collection of Microorganisms and Cell Cultures GmbH, 38124, Braunschweig, Germany
| | | | - Meinhard Simon
- Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, 26129, Oldenburg, Germany
| | - Thorsten Brinkhoff
- Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg, 26129, Oldenburg, Germany.
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