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Wang B, Han D, Hu X, Chen J, Liu Y, Wu J. Exploring the role of a novel postbiotic bile acid: Interplay with gut microbiota, modulation of the farnesoid X receptor, and prospects for clinical translation. Microbiol Res 2024; 287:127865. [PMID: 39121702 DOI: 10.1016/j.micres.2024.127865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 08/01/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024]
Abstract
The gut microbiota, mainly resides in the colon, possesses a remarkable ability to metabolize different substrates to create bioactive substances, including short-chain fatty acids, indole-3-propionic acid, and secondary bile acids. In the liver, bile acids are synthesized from cholesterol and then undergo modification by the gut microbiota. Beyond those reclaimed by the enterohepatic circulation, small percentage of bile acids escaped reabsorption, entering the systemic circulation to bind to several receptors, such as farnesoid X receptor (FXR), thereby exert their biological effects. Gut microbiota interplays with bile acids by affecting their synthesis and determining the production of secondary bile acids. Reciprocally, bile acids shape out the structure of gut microbiota. The interplay of bile acids and FXR is involved in the development of multisystemic conditions, encompassing metabolic diseases, hepatobiliary diseases, immune associated disorders. In the review, we aim to provide a thorough review of the intricate crosstalk between the gut microbiota and bile acids, the physiological roles of bile acids and FXR in mammals' health and disease, and the clinical translational considerations of gut microbiota-bile acids-FXR in the treatment of the diseases.
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Affiliation(s)
- Beibei Wang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Dong Han
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Xinyue Hu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Jing Chen
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Yuwei Liu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Jing Wu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China.
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Yang S, Ji Y, Xue P, Li Z, Chen X, Shi J, Jiang C. Insights into the antifungal mechanism of Bacillus subtilis cyclic lipopeptide iturin A mediated by potassium ion channel. Int J Biol Macromol 2024; 277:134306. [PMID: 39094860 DOI: 10.1016/j.ijbiomac.2024.134306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 07/25/2024] [Accepted: 07/28/2024] [Indexed: 08/04/2024]
Abstract
Fungal infections pose severe and potentially lethal threats to plant, animal, and human health. Ergosterol has served as the primary target for developing antifungal medications. However, many antifungal drugs remain highly toxic to humans due to similarity in cell membrane composition between fungal and animal cells. Iturin A, lipopeptide produced by Bacillus subtilis, efficiently inhibit various fungi, but demonstrated safety in oral administration, indicating the existence of targets different from ergosterol. To pinpoint the exact antifungal target of iturin A, we used homologous recombination to knock out and overexpress erg3, a key gene in ergosterol synthesis. Saccharomyces cerevisiae and Aspergillus carbonarius were transformed using the LiAc/SS-DNNPEG and Agrobacterium-mediated transformation (AMT), respectively. Surprisingly, increasing ergosterol content did not augment antifungal activity. Furthermore, iturin A's antifungal activity against S. cerevisiae was reduced while it pre-incubation with voltage-gated potassium (Kv) channel inhibitor, indicating that Kv activation was responsible for cell death. Iturin A was found to activate the Kv protein, stimulating K+ efflux from cell. In vitro tests confirmed interaction between iturin A and Kv protein. This study highlights Kv as one of the precise targets of iturin A in its antifungal activity, offering a novel target for the development of antifungal medications.
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Affiliation(s)
- Saixue Yang
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province 710072, China
| | - Yulan Ji
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province 710072, China
| | - Pengyuan Xue
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province 710072, China
| | - Zhenzhu Li
- Center for Ecology and Environmental Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province 710072, China
| | - Xianqing Chen
- Jiaxing Synbiolab Biotechnology Co., Ltd., Jiaxing 314006, China
| | - Junling Shi
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province 710072, China.
| | - Chunmei Jiang
- Key Laboratory for Space Bioscience and Space Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province 710072, China.
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53
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Ma Y, Wang L, He J, Ma X, Wang J, Yan R, Ma W, Ma H, Liu Y, Sun H, Zhang X, Jia S, Wang H. Sodium Selenite Ameliorates Silver Nanoparticles Induced Vascular Endothelial Cytotoxic Injury by Antioxidative Properties and Suppressing Inflammation Through Activating the Nrf2 Signaling Pathway. Biol Trace Elem Res 2024; 202:4567-4585. [PMID: 38150116 PMCID: PMC11339151 DOI: 10.1007/s12011-023-04014-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/11/2023] [Indexed: 12/28/2023]
Abstract
Silver nanoparticles (AgNP) are the dominant nanomaterials in commercial products and the medical field, but the widespread occurrence of AgNP has become a global threat to human health. Growing studies indicate that AgNP exposure can induce vascular endothelial toxicity by excessive oxidative stress and inflammation, which is closely related to cardiovascular disease (CVD), but the potential intrinsic mechanism remains poorly elucidated. Thus, it has been crucial to control the toxicological effects of AgNP in order to improve their safety and increase the outcome of their applications.Multiple researches have demonstrated that sodium selenite (Se) possesses the capability to counteract the toxicity of AgNP, but the functional role of Se in AgNP-induced CVD is largely unexplored. The aim of this study was to explore the potential protective effect of Se on AgNP-induced vascular endothelial lesion and elucidate the underlying mechanisms. An in vivo model of toxicity in animals was established by the instillation of 200 µL of AgNP into the trachea of rats both with (0.2 mg/kg/day) and without Se treated. In vitro experiments, human umbilical vein endothelial cells (HUVECs) were incubated with AgNP (0.3 µg/mL ) and Se for a duration of 24 h. Utilizing transmission electron microscopy, we observed that the internalization of AgNP-induced endothelial cells was desquamated from the internal elastic lamina, the endoplasmic reticulum was dilated, and the medullary vesicle formed. Se treatment reduced the levels of vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1), inhibited the release of pro-inflammatory cytokines (specifically tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6), improved endothelial cell permeability, integrity, and dysfunction, and prevented damage to the aortic endothelium caused by AgNP. Importantly, we found that Se showed the capacity against AgNP with biological functions in guiding the intracellular reactive oxygen species (ROS) scavenging and meanwhile exhibiting anti-inflammation effects. Se supplementation decreased the intracellular ROS release and suppressed NOD-like receptor protein 3 (NLRP3) and nuclear factor kappa-B (NF-κB) mediated inflammation within AgNP-intoxicated rats and HUVECs. The anti-oxidant stress and anti-inflammatory effects of Se were at least partly dependent on nuclear factor erythroid 2-related factor 2 (Nrf2). Overall, our results indicated that the protectiveness of Se against AgNP-induced vascular endothelial toxicity injury was at least attributed to the inhibition of oxidative ROS and pro-inflammatory NF-κB/NLRP3 inflammasome by activating the Nrf2 and antioxidant enzyme (HO-1) signal pathway.
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Affiliation(s)
- Yunyun Ma
- General Hospital of Ningxia Medical University (the First Clinical Medical College of Ningxia Medical University), Yinchuan, 750004, Ningxia, China
- Heart Centre &, Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Lei Wang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jing He
- Heart Centre &, Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xueping Ma
- Heart Centre &, Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jingjing Wang
- Heart Centre &, Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Ru Yan
- Heart Centre &, Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Wanrui Ma
- Department of General Medicine, The First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan, China
| | - Huiyan Ma
- Heart Centre &, Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yajuan Liu
- Heart Centre &, Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Hongqian Sun
- Heart Centre &, Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xiaoxia Zhang
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, Ningxia, China.
| | - Shaobin Jia
- Heart Centre &, Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China.
| | - Hao Wang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia, China.
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54
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Wang Y, Liu R, Xie Z, Du L, Wang Y, Han J, Zhang L. Structure characterization and immunological activity of capsular polysaccharide from live and heat-killed Lacticaseibacillus paracasei 6235. Int J Biol Macromol 2024; 277:134010. [PMID: 39032891 DOI: 10.1016/j.ijbiomac.2024.134010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 06/22/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
Capsular polysaccharide (CPS) as a probiotic component has the ability to regulate the function of the host's immune system. However, how the structure and function of heat-killed CPS are altered remains unclear. In the present study, CPS were isolated and purified from live (LCPS) and heat-killed (HCPS) Lacticaseibacillus paracasei 6235. The differences in structure and immunomodulation between LCPS and HCPS were compared and analyzed. The results demonstrate that after heat killed, the molecular weight of CPS decreased from 23.4 kDa to 17.5 kDa, with the disappearance of galactosamine in the monosaccharide composition, and changes in the microstructure. Methylation analysis and nuclear magnetic resonance analysis revealed that the LCPS and HCPS are similar in structure, which main units of →3,4)-α-D-Glcp-(1→4)-α-D-Galp-(1→3)-β-L-Rhap-(1→6)-β-D-Galp-(1→, and repeating units of →3,4)-α-D-Glcp-(1→, →3)-β-L-Rhap-(1→, and →4)-α-D-Galp-(1→ residues. Furthermore, both LCPS and HCPS significantly downregulated the expression of pro-inflammatory cytokines in RAW264.7 cells induced by LPS. Specifically, HCPS reduced the levels of IL-6 and IL-1β by 79.38 % and 88.42 %, respectively, compared to LCPS. Concurrently, both LCPS and HCPS effectively mitigated inflammatory responses through the NF-κB and MAPK signaling pathways. Moreover, compared to LCPS, HCPS increased the protein expression levels of NF-κB/p-NF-κB and IκB/p-IκB by 26.14 % and 28.92 %, respectively. These results suggest that CPS has a role in modulating immune responses and that HCPS is more effective. This study can be further developed into new products related to postbiotics.
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Affiliation(s)
- Yucong Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Rongxu Liu
- Heilongjiang Green Food Science Research Institute, Harbin 150030, China
| | - Zhixin Xie
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Lei Du
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Yingnan Wang
- Heilongjiang Green Food Science Research Institute, Harbin 150030, China
| | - Jianchun Han
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Green Food Science Research Institute, Harbin 150030, China.
| | - Lili Zhang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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55
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Ormsby MJ, Woodford L, White HL, Fellows R, Quilliam RS. The plastisphere can protect Salmonella Typhimurium from UV stress under simulated environmental conditions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 358:124464. [PMID: 38964649 DOI: 10.1016/j.envpol.2024.124464] [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: 03/25/2024] [Revised: 06/24/2024] [Accepted: 06/26/2024] [Indexed: 07/06/2024]
Abstract
Plastic waste is found with increasing frequency in the environment, in low- and middle-income countries. Plastic pollution has increased concurrently with both economic development and rapid urbanisation, amplifying the effects of inadequate waste management. Distinct microbial communities can quickly colonise plastic surfaces in what is collectively known as the 'plastisphere'. The plastisphere can act as a reservoir for human pathogenic bacteria, including Salmonella enterica sp. (such as S. Typhimurium), which can persist for long periods, retain pathogenicity, and pose an increased public health risk. Through employing a novel mesocosm setup, we have shown here that the plastisphere provides enhanced protection against environmental pressures such as ultraviolet (UV) radiation and allows S. Typhimurium to persist at concentrations (>1 × 103 CFU/ml) capable of causing human infection, for up to 28 days. Additionally, using a Galleria Mellonella model of infection, S. Typhimurium exhibits greater pathogenicity following recovery from the UV-exposed plastisphere, suggesting that the plastisphere may select for more virulent variants. This study demonstrates the protection afforded by the plastisphere and provides further evidence of environmental plastic waste acting as a reservoir for dangerous clinical pathogens. Quantifying the role of plastic pollution in facilitating the survival, persistence, and dissemination of human pathogens is critical for a more holistic understanding of the potential public health risks associated with plastic waste.
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Affiliation(s)
- Michael J Ormsby
- Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK.
| | - Luke Woodford
- Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK
| | - Hannah L White
- Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK
| | - Rosie Fellows
- Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK
| | - Richard S Quilliam
- Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK
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Guan X, Jia D, Liu X, Ding C, Guo J, Yao M, Zhang Z, Zhou M, Sun J. Combined influence of the nanoplastics and polycyclic aromatic hydrocarbons exposure on microbial community in seawater environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:173772. [PMID: 38871313 DOI: 10.1016/j.scitotenv.2024.173772] [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: 02/13/2024] [Revised: 05/21/2024] [Accepted: 06/02/2024] [Indexed: 06/15/2024]
Abstract
Nanoplastics (NPs) and polycyclic aromatic hydrocarbons (PAHs) are recognized as persistent organic pollutant (POPs) with demonstrated physiological toxicity. When present in aquatic environments, the two pollutants could combine with each other, resulting in cumulative toxicity to organisms. However, the combined impact of NPs and PAHs on microorganisms in seawater is not well understood. In this study, we conducted an exposure experiment to investigate the individual and synergistic effects of NPs and PAHs on the composition, biodiversity, co-occurrence networks of microbial communities in seawater. Exposure of individuals to PAHs led to a reduction in microbial community richness, but an increase in the relative abundance of species linked to PAHs degradation. These PAHs-degradation bacteria acting as keystone species, maintained a microbial network complexity similar to that of the control treatment. Exposure to individual NPs resulted in a reduction in the complexity of microbial networks. Furthermore, when PAHs and NPs were simultaneously present, the toxic effect of NPs hindered the presence of keystone species involved in PAHs degradation, subsequently limiting the degradation of PAHs by marine microorganisms, resulting in a decrease in community diversity and symbiotic network complexity. This situation potentially poses a heightened threat to the ecological stability of marine ecosystems. Our work strengthened the understanding of the combined impact of NPs and PAHs on microorganisms in seawater.
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Affiliation(s)
- Xin Guan
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Dai Jia
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China.
| | - Xinyu Liu
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Changling Ding
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China; Institute for Advanced Marine Research, China University of Geosciences (Wuhan), Guangzhou, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Wuhan), Wuhan, China
| | - Jinfei Guo
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Min Yao
- Jiangsu Hydrology and Water Resources Survey Bureau, Nanjing, China
| | - Zhan Zhang
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Mengxi Zhou
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China
| | - Jun Sun
- College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin, China; Institute for Advanced Marine Research, China University of Geosciences (Wuhan), Guangzhou, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Wuhan), Wuhan, China.
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57
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Li W, Tao Z, Zhou M, Jiang H, Wang L, Ji B, Zhao Y. Antibiotic adjuvants against multidrug-resistant Gram-negative bacteria: important component of future antimicrobial therapy. Microbiol Res 2024; 287:127842. [PMID: 39032266 DOI: 10.1016/j.micres.2024.127842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/13/2024] [Accepted: 07/14/2024] [Indexed: 07/23/2024]
Abstract
The swift emergence and propagation of multidrug-resistant (MDR) bacterial pathogens constitute a tremendous global health crisis. Among these pathogens, the challenge of antibiotic resistance in Gram-negative bacteria is particularly pressing due to their distinctive structure, such as highly impermeable outer membrane, overexpressed efflux pumps, and mutations. Several strategies have been documented to combat MDR Gram-negative bacteria, including the structural modification of existing antibiotics, the development of antimicrobial adjuvants, and research on novel targets that MDR bacteria are sensitive to. Drugs functioning as adjuvants to mitigate resistance to existing antibiotics may play a pivotal role in future antibacterial therapy strategies. In this review, we provide a brief overview of potential antibacterial adjuvants against Gram-negative bacteria and their mechanisms of action, and discuss the application prospects and potential for bacterial resistance to these adjuvants, along with strategies to reduce this risk.
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Affiliation(s)
- Wenwen Li
- School of Life Science and Bio-Pharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 110016, PR China
| | - Zhen Tao
- School of Life Science and Bio-Pharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 110016, PR China
| | - Motan Zhou
- School of Life Science and Bio-Pharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 110016, PR China
| | - Huilin Jiang
- School of Life Science and Bio-Pharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 110016, PR China
| | - Liudi Wang
- School of Life Science and Bio-Pharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 110016, PR China
| | - Bingjie Ji
- School of Life Science and Bio-Pharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 110016, PR China
| | - Yongshan Zhao
- School of Life Science and Bio-Pharmaceutics, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 110016, PR China.
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D'Aleo F, Tuscano A, Servello T, Tripodi M, Abramo C, Bonanno R, Gulino FA, Occhipinti S, Incognito GG, Principe L. Relevance of microbiological cultures of cord blood and placental swabs in the rapid diagnosis of preterm newborn infection due to Listeria monocytogenes: A case report. Case Rep Womens Health 2024; 43:e00638. [PMID: 39188762 PMCID: PMC11345304 DOI: 10.1016/j.crwh.2024.e00638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 08/28/2024] Open
Abstract
Listeria monocytogenes (Lm) is a Gram-positive bacterium causing listeriosis, a rare but severe foodborne infection, particularly impactful during pregnancy. Maternal-fetal transmission can lead to adverse fetal outcomes, yet symptoms in mothers may be nonspecific, delaying intervention. Despite the severity, the mechanisms of vertical transmission remain unclear. This report describes a case of rapid Lm diagnosis in a preterm newborn using cord blood and placental swabs. A 31-week pregnant woman presented with abdominal pain, diarrhea, and reduced fetal movements after consuming raw sushi. Laboratory findings indicated infection, and she vaginally delivered a live infant with placental and fetal abscesses. Cultures confirmed Lm, with swift diagnosis aided by molecular syndromic testing. The neonate received appropriate antibiotics and was asymptomatic by the end of treatment. This case underscores the need for the rapid diagnosis of maternal-fetal listeriosis, as it poses significant risks during pregnancy, including preterm birth and neonatal complications. Current diagnostic methods often delay treatment. This report emphasizes the use of innovative molecular techniques for early diagnosis, which is crucial in managing neonatal infections, especially in preterm newborns.
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Affiliation(s)
- Francesco D'Aleo
- U.O.C. of Microbiology and Virology, “Bianchi-Melacrino-Morelli” Hospital, Reggio Calabria, Italy
| | - Attilio Tuscano
- U.O.C. of Obstetrics and Gynaecology, “Bianchi-Melacrino-Morelli” Hospital, Reggio Calabria, Italy
| | - Tarcisio Servello
- U.O.C. of Obstetrics and Gynaecology, “Bianchi-Melacrino-Morelli” Hospital, Reggio Calabria, Italy
| | - Marcello Tripodi
- U.O.C. of Obstetrics and Gynaecology, “Bianchi-Melacrino-Morelli” Hospital, Reggio Calabria, Italy
| | - Carmela Abramo
- U.O.C. of Obstetrics and Gynaecology, “Bianchi-Melacrino-Morelli” Hospital, Reggio Calabria, Italy
| | - Roberta Bonanno
- U.O.C. of Obstetrics and Gynaecology, “Bianchi-Melacrino-Morelli” Hospital, Reggio Calabria, Italy
| | | | - Sara Occhipinti
- Department of General Surgery and Medical Surgical Specialties, University of Catania, Catania, Italy
| | - Giosuè Giordano Incognito
- Department of General Surgery and Medical Surgical Specialties, University of Catania, Catania, Italy
| | - Luigi Principe
- U.O.C. of Microbiology and Virology, “Bianchi-Melacrino-Morelli” Hospital, Reggio Calabria, Italy
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Tsoukalas D, Hamed I, Hoel S, Lerfall J, Jakobsen AN. Effect of harvesting season and location on the microbial quality and community composition of the edible sea urchin (Echinus esculentus) gonads. Food Microbiol 2024; 123:104594. [PMID: 39038897 DOI: 10.1016/j.fm.2024.104594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 06/07/2024] [Accepted: 07/01/2024] [Indexed: 07/24/2024]
Abstract
Despite the crucial role of microbial community composition in the quality and stability of seafood, little emphasis has been given to the microbiota profile of sea urchin gonads. This study investigates the microbial quality and community composition of sea urchin gonads (Echinus esculentus) as a function of harvesting season (autumn, winter, spring, and summer) and location (one site proximal to urban activity areas while the other is located in open water close to the coastline). Significant season-dependent variations were found in psychrotrophic and aerobic plate counts, with higher counts in summer, followed by autumn, spring, and winter. H2S-producing bacteria and Pseudomonas spp. counts were unaffected by harvesting season or location. Sea urchin gonad microbial composition proved resilient and dynamic, primarily shaped by seasonal variations, and minimally influenced by location. Winter and spring samples exhibited higher diversity than autumn and summer. Key genera like Pseudomonas, Psychromonas, Vibrio, Chryseobacterium, Shewanella, and Photobacterium varied seasonally. Pseudomonas, Vibrio, and Photobacterium are crucial in assessing microbial quality and safety due to their roles as specific spoilage organisms (SSOs) and, in some cases, human pathogens. Though relative abundances differed slightly between locations, harvesting location did not notably impact microbial community shaping in gonads. However, the results suggest that harvesting locations near areas with urban activity may lead to contamination with specific bacterial species, possibly due to water quality variations. These findings emphasize the importance of considering seasonality when evaluating sea urchin gonad microbial quality. Identifying key genera enhances insights into potential SSOs and human pathogens, enhancing food safety considerations in the consumption of raw or lightly processed sea urchin gonads and guiding the development of preservation methods to extend shelf life.
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Affiliation(s)
- Dionysios Tsoukalas
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), NO-7491, Trondheim, Norway.
| | - Imen Hamed
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), NO-7491, Trondheim, Norway
| | - Sunniva Hoel
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), NO-7491, Trondheim, Norway
| | - Jørgen Lerfall
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), NO-7491, Trondheim, Norway
| | - Anita Nordeng Jakobsen
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), NO-7491, Trondheim, Norway
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Gao J, Ali MY, Kamaraj Y, Zhang Z, Weike L, Sethupathy S, Zhu D. A comprehensive review on biological funnel mechanism in lignin valorization: Pathways and enzyme dynamics. Microbiol Res 2024; 287:127835. [PMID: 39032264 DOI: 10.1016/j.micres.2024.127835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 06/17/2024] [Accepted: 07/12/2024] [Indexed: 07/23/2024]
Abstract
Lignin, a significant byproduct of the paper and pulp industry, is attracting interest due to its potential utilization in biomaterial-based sectors and biofuel production. Investigating biological methods for converting lignin into valuable products is crucial for effective utilization and has recently gained growing attention. Several microorganisms effectively decomposed low molecular weight lignins, transforming them into intermediate compounds via upper and lower metabolic pathways. This review focuses on assessing bacterial metabolic pathways involved in the breakdown of lignin into aromatic compounds and their subsequent utilization by different bacteria through various metabolic pathways. Understanding these pathways is essential for developing efficient synthetic metabolic systems to valorize lignin and obtain valuable industrial aromatic chemicals. The concept of "biological funneling," which involves examining key enzymes, their interactions, and the complex metabolic pathways associated with lignin conversion, is crucial in lignin valorization. By manipulating lignin metabolic pathways and utilizing biological routes, many aromatic compounds can be synthesized within cellular factories. Although there is insufficient evidence regarding the complete metabolism of polyaromatic hydrocarbons by particular microorganisms, understanding lignin-degrading enzymes, regulatory mechanisms, and interactions among various enzyme systems is essential for optimizing lignin valorization. This review highlights recent advancements in lignin valorization, bio-funneling, multi-omics, and analytical characterization approaches for aromatic utilization. It provides up-to-date information and insights into the latest research findings and technological innovations. The review offers valuable insights into the future potential of biological routes for lignin valorization.
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Affiliation(s)
- Jiayue Gao
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Mohamed Yassin Ali
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China; Department of Biochemistry, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt
| | - Yoganathan Kamaraj
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Zhenghao Zhang
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Li Weike
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Sivasamy Sethupathy
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Daochen Zhu
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China.
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Yin Y, Jiang J, Hu Y, Chen Y, Wei Z, Chen H. Discovery of the rich diversity of Mesomycoplasma hyopneumoniae through high-throughput sequencing. Vet Microbiol 2024; 297:110213. [PMID: 39116641 DOI: 10.1016/j.vetmic.2024.110213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 07/18/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
Pneumonia caused by Mesomycoplasma hyopneumoniae (Mhp) is a respiratory disease with high morbidity and low mortality that typically presents in growing pigs. Although often subclinical, the disease can significantly affect the pig farming industry economically due to decreased growth rates and inefficient feed conversion. Effective control of Mhp depends on the detection of dominant strains prevalent in infected animals, which vary in virulence. However, traditional culture methods for diagnosing Mhp are laborious and slow, whereas multi-locus sequence typing, another possible method, requires identifying several genes. This study introduces a novel pair of polymerase chain reaction (PCR) primers for the rapid detection and genetic evolution analysis of Mhp strains to facilitate improved vaccine selection. The genetic evolutionary tree established using the PCR amplification fragment was highly similar to the genetic evolutionary tree established using whole-genome sequences. Analysis of 131 samples from Guangxi and Hunan slaughterhouses revealed a 30.53 % prevalence of Mhp. High-throughput sequencing has shown that Mhp has a diverse bacterial population in clinically collected samples. The prevalence of major strains may vary among regions. Additionally, the strains of Mhp vaccines sold may differ significantly from the strains prevalent on farms. In summary, this work has designed a pair of primers that will be useful for detecting the diversity of Mhp and for targeted prevention and control.
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Affiliation(s)
- Yeshi Yin
- Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, College of Animal Science and Technology, Guangxi University, 100 Daxue East Road, Nanning, Guangxi, PR China.
| | - Jianzhao Jiang
- Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, College of Animal Science and Technology, Guangxi University, 100 Daxue East Road, Nanning, Guangxi, PR China
| | - Yunfei Hu
- College of Veterinary Medicine, Hunan Agricultural University, No.1 Nongda Road, Furong District, Changsha, Hunan, PR China
| | - Ying Chen
- Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, College of Animal Science and Technology, Guangxi University, 100 Daxue East Road, Nanning, Guangxi, PR China
| | - Zuzhang Wei
- Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, College of Animal Science and Technology, Guangxi University, 100 Daxue East Road, Nanning, Guangxi, PR China
| | - Huahai Chen
- GuangxiAcademy of Marine Sciences, Guangxi Academy of Sciences, No. 98 Daling Road, Nanning, Guangxi, PR China.
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Heckler C, Vale MG, Canales HDS, Stradiotto GC, Giordano ALPL, Schreiber AZ, Sant'Ana AS. Spore-forming bacteria in gelatin: Characterization, identification by 16S rRNA and MALDI-TOF mass spectrometry (MS), and presence of heat resistance and virulence genes. Int J Food Microbiol 2024; 422:110813. [PMID: 38970997 DOI: 10.1016/j.ijfoodmicro.2024.110813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 06/20/2024] [Accepted: 06/27/2024] [Indexed: 07/08/2024]
Abstract
Gelatin, a versatile protein derived from collagen, is widely used in the food, pharmaceutical and medical sectors. However, bacterial contamination by spore-forming bacteria during gelatin processing represents a significant concern for product safety and quality. In this study, an investigation was carried out to explore the heat and chemical resistance, as well as the identification and characterization of spore-forming bacteria isolated from gelatin processing. The methodologies involved chemical resistance tests with drastic pH in microplates and thermal resistance tests in capillary tubes of various isolates obtained at different processing stages. In addition, phenotypic and genotypic analyses were carried out to characterize the most resistant isolates of spore-forming bacteria. The findings of this study revealed the presence of several species, including Bacillus cereus, Bacillus licheniformis, Bacillus sonorensis, Bacillus subtilis, Geobacillus stearothermophilus, and Clostridium sporogenes, with some isolates exhibiting remarkable chemical and heat resistances. In addition, a significant proportion of the most resistant isolates showed gelatinase activity (n = 19/21; 90.5 %) and the presence of heat resistance (n = 5/21; 23.8 %), and virulence genes (n = 11/21; 52.4 %). The results of this study suggest that interventions should be done in quality control practices and that process parameter adjustments and effective contamination reduction strategies should be implemented through gelatin processing.
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Affiliation(s)
- Caroline Heckler
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Matheus G Vale
- Department of Integrated Systems, Faculty of Mechanical Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Héctor D S Canales
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Graziele C Stradiotto
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Ana Luisa P L Giordano
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - Angelica Z Schreiber
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil.
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63
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Deng Z, Ma Y, Zhu J, Zeng C, Mu R, Zhang Z. In situ activation of peroxymonosulfate with bioelectricity for sulfamethoxazole sustainable removal. ENVIRONMENTAL RESEARCH 2024; 257:119294. [PMID: 38823609 DOI: 10.1016/j.envres.2024.119294] [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: 03/14/2024] [Revised: 05/15/2024] [Accepted: 05/30/2024] [Indexed: 06/03/2024]
Abstract
Conventional electrochemical activation of peroxymonosulfate (PMS) is not very cost-effective and practical by the excessive input of energy. The electricity generated by photosynthetic microalgae fuel cells (MFCs) is utilized to activate PMS, which would achieve the combination of green bioelectricity and advanced oxidation processes for sustainable pollutants degradation. In this study, a novel dual-chamber of MFCs was constructed by using microalgae as anode electron donor and PMS as cathode electron acceptor, which was operating under both close-circuit and open-circuit conditions. Under close-circuit condition, 1-12 mM PMS in cathode was successfully in situ activated, where 32.00%-99.83% of SMX was removed within 24 h, which was about 1.21-1.78 times of that in the open-circuit of MFCs. Meanwhile, a significant increase in bioelectricity generation in MFCs was observed after the accumulation of microalgae biomass (4.65-5.37 mg/L), which was attributed to the efficient electron separation and transfer. Furthermore, the electrochemical analysis demonstrated that SMX or its products were functioned as electronic shuttles, facilitating the electrochemical reaction and altering the electrical capacitance. The quenching experiments and voltage output results reflected that complex active radical (SO4⋅-, ⋅OH, and 1O2) were involved in SMX removal. Seven degradation products of SMX were detected and S-N bond cleavage was the main degradation pathway. Predicted toxicity values calculated by ECOSAR program showed that all the products were less toxic or nontoxic. Finally, the density functional theory (DFT) calculations revealed that the O and N atoms on SMX were more susceptible to electrophilic reactions, which were more vulnerable to be attacked by reactive species. This study provided new insights into the activation of PMS by bioelectricity for SMX degradation, proposing the mechanisms for PMS activation and degradation sites of SMX.
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Affiliation(s)
- Zhikang Deng
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China
| | - Yongfei Ma
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China
| | - Jinyao Zhu
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China
| | - Chenyu Zeng
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China
| | - Rui Mu
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China
| | - Zulin Zhang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China; The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK.
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64
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Santos MPMC, de Oliveira LS, Lima-Neto RG, Andrade CAS, Oliveira MDL. New bioelectrode based on graphene quantum dots-polypyrrole film and Concanavalin A for pathogenic microorganism detection. J Pharm Biomed Anal 2024; 248:116299. [PMID: 38865928 DOI: 10.1016/j.jpba.2024.116299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 06/07/2024] [Accepted: 06/07/2024] [Indexed: 06/14/2024]
Abstract
Infections caused by microorganisms are a public health problem worldwide. New biodetection systems are essential to diagnose with accuracy resulting in more effective treatment. In this work, we propose a ConA-conjugated graphene quantum dots and polypyrrole film-based biosensor for label-free detection of Candida albicans, Candida glabrata, Candida tropicalis, E. coli, B. subitilis, and S. aureus. We modified polypyrrole and graphene quantum dots (PPY-QDGs) with Concanavalin A (Con A) lectin. ConA is a glucose/mannose-specific lectin. The results showed that ConA lectin has the highest binding affinity for C. tropicalis and S. subtilis. PPY-GQDs-ConA binding profile revealed differential response for Candida spp (C. tropicalis > C. albicans > C. glabrata) and bacterial (B. subtilis > S. aureus > E. coli). The limits of detection (LOD) obtained were 1.42 CFU/mL for C. albicans, and 3.72 CFU/mL for C. glabrata. C. tropicalis yielded a LOD of 0.18 CFU/mL. The respective LODs for the evaluated bacteria were 0.39 CFU/mL for S. aureus, 0.72 CFU/mL for S. subtilis, and 2.63 CFU/mL for E. coli. The differential response obtained for the sensor can be attributed to the heterogeneous distribution of carbohydrates on the microorganism's surfaces. The proposed system based on a flexible substrate is effective for microbiological diagnosis.
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Affiliation(s)
- Maria P M C Santos
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, Recife, Pernambuco 50670-901, Brazil
| | - Léony S de Oliveira
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, Recife, Pernambuco 50670-901, Brazil
| | - Reginaldo G Lima-Neto
- Departamento de Medicina Tropical, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - César A S Andrade
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, Recife, Pernambuco 50670-901, Brazil; Departamento de Bioquímica, Universidade Federal de Pernambuco, Recife, Pernambuco 50670-901, Brazil
| | - Maria D L Oliveira
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, Recife, Pernambuco 50670-901, Brazil; Departamento de Bioquímica, Universidade Federal de Pernambuco, Recife, Pernambuco 50670-901, Brazil.
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65
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Papale M, Fazi S, Severini M, Scarinci R, Dell'Acqua O, Azzaro M, Venuti V, Fazio B, Fazio E, Crupi V, Irrera A, Rizzo C, Giudice AL, Caruso G. Structural properties and microbial diversity of the biofilm colonizing plastic substrates in Terra Nova Bay (Antarctica). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 943:173773. [PMID: 38844237 DOI: 10.1016/j.scitotenv.2024.173773] [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: 03/19/2024] [Revised: 05/30/2024] [Accepted: 06/02/2024] [Indexed: 06/15/2024]
Abstract
Microbial colonization on plastic polymers has been extensively explored, however the temporal dynamics of biofilm community in Antarctic environments are almost unknown. As a contribute to fill this knowledge gap, the structural characteristics and microbial diversity of the biofilm associated with polyvinyl chloride (PVC) and polyethylene (PE) panels submerged at 5 m of depth and collected after 3, 9 and 12 months were investigated in four coastal sites of the Ross Sea. Additional panels placed at 5 and 20 m were retrieved after 12 months. Chemical characterization was performed by FTIR-ATR and Raman (through Surface-Enhanced Raman Scattering, SERS) spectroscopy. Bacterial community composition was quantified at a single cell level by Catalyzed Reporter Deposition Fluorescence In Situ Hybridization (CARD-FISH) and Confocal Laser Scanning Microscopy (CLSM); microbial diversity was assessed by 16S rRNA gene sequencing. This multidisciplinary approach has provided new insights into microbial community dynamics during biofouling process, shedding light on the biofilm diversity and temporal succession on plastic substrates in the Ross Sea. Significant differences between free-living and microbial biofilm communities were found, with a more consolidated and structured community composition on PVC compared to PE. Spectral features ascribable to tyrosine, polysaccharides, nucleic acids and lipids characterized the PVC-associated biofilms. Pseudomonadota (among Gamma-proteobacteria) and Alpha-proteobacteria dominated the microbial biofilm community. Interestingly, in Road Bay, close to the Italian "Mario Zucchelli" research station, the biofilm growth - already observed during summer season, after 3 months of submersion - continued afterwards leading to a massive microbial abundance at the end of winter (after 12 months). After 3 months, higher percentages of Gamma-proteobacteria in Road Bay than in the not-impacted site were found. These observations lead us to hypothesize that in this site microbial fouling developed during the first 3 months could serve as a starter pioneering community stimulating the successive growth during winter.
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Affiliation(s)
- Maria Papale
- Institute of Polar Sciences, National Research Council (CNR-ISP), Spianata S. Raineri 86, 98122 Messina, Italy
| | - Stefano Fazi
- Water Research Institute, National Research Council (CNR-IRSA), Via Salaria km 29.300 CP10, 00015 Monterotondo, Rome, Italy; National Biodiversity Future Center, Piazza Marina 61, 90133 Palermo, Italy
| | - Maila Severini
- Water Research Institute, National Research Council (CNR-IRSA), Via Salaria km 29.300 CP10, 00015 Monterotondo, Rome, Italy
| | - Roberta Scarinci
- Water Research Institute, National Research Council (CNR-IRSA), Via Salaria km 29.300 CP10, 00015 Monterotondo, Rome, Italy
| | - Ombretta Dell'Acqua
- DISTAV, Department of Earth, Environmental and Life Sciences, University of Genoa, Corso Europa, 26, 16132 Genoa, Italy
| | - Maurizio Azzaro
- Institute of Polar Sciences, National Research Council (CNR-ISP), Spianata S. Raineri 86, 98122 Messina, Italy
| | - Valentina Venuti
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Barbara Fazio
- URT "LabSens of Beyond Nano" of the Department of Physical Sciences and Technologies of Matter, National Research Council (CNR- DSFTM-ME), Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy; Institute for Chemical and Physical Processes, National Research Council (CNR-IPCF), Viale Ferdinando Stagno d'Alcontres, 37, 98158 Messina, Messina, Italy
| | - Enza Fazio
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Vincenza Crupi
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Alessia Irrera
- URT "LabSens of Beyond Nano" of the Department of Physical Sciences and Technologies of Matter, National Research Council (CNR- DSFTM-ME), Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Carmen Rizzo
- Institute of Polar Sciences, National Research Council (CNR-ISP), Spianata S. Raineri 86, 98122 Messina, Italy; Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, Sicily Marine Centre, Villa Pace, Contrada Porticatello 29, 98167 Messina, Italy
| | - Angelina Lo Giudice
- Institute of Polar Sciences, National Research Council (CNR-ISP), Spianata S. Raineri 86, 98122 Messina, Italy; National Biodiversity Future Center, Piazza Marina 61, 90133 Palermo, Italy
| | - Gabriella Caruso
- Institute of Polar Sciences, National Research Council (CNR-ISP), Spianata S. Raineri 86, 98122 Messina, Italy.
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Shatunova S, Aktar R, Peiris M, Lee JYP, Vetter I, Starobova H. The role of the gut microbiome in neuroinflammation and chemotherapy-induced peripheral neuropathy. Eur J Pharmacol 2024; 979:176818. [PMID: 39029779 DOI: 10.1016/j.ejphar.2024.176818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 06/05/2024] [Accepted: 07/17/2024] [Indexed: 07/21/2024]
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN) is one of the most debilitating adverse effects caused by chemotherapy drugs such as paclitaxel, oxaliplatin and vincristine. It is untreatable and often leads to the discontinuation of cancer therapy and a decrease in the quality of life of cancer patients. It is well-established that neuroinflammation and the activation of immune and glial cells are among the major drivers of CIPN. However, these processes are still poorly understood, and while many chemotherapy drugs alone can drive the activation of these cells and consequent neuroinflammation, it remains elusive to what extent the gut microbiome influences these processes. In this review, we focus on the peripheral mechanisms driving CIPN, and we address the bidirectional pathways by which the gut microbiome communicates with the immune and nervous systems. Additionally, we critically evaluate literature addressing how chemotherapy-induced dysbiosis and the consequent imbalance in bacterial products may contribute to the activation of immune and glial cells, both of which drive neuroinflammation and possibly CIPN development, and how we could use this knowledge for the development of effective treatment strategies.
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Affiliation(s)
- Svetlana Shatunova
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Rubina Aktar
- Centre for Neuroscience, Surgery and Trauma, Faculty of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Madusha Peiris
- Centre for Neuroscience, Surgery and Trauma, Faculty of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Jia Yu Peppermint Lee
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Irina Vetter
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia; The School of Pharmacy, The University of Queensland, Woollsiana, QLD, Australia
| | - Hana Starobova
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia.
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67
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León Ninin JM, Higa Mori A, Pausch J, Planer-Friedrich B. Long-term paddy use influences response of methane production, arsenic mobility and speciation to future higher temperatures. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 943:173793. [PMID: 38851333 DOI: 10.1016/j.scitotenv.2024.173793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/14/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Anaerobic microbial metabolisms make flooded paddy soils a major source of the greenhouse gas methane (CH4) and mobilize toxic arsenic (As), threatening rice production and consumption. Increasing temperatures due to climate change enhance these microbially mediated processes, increasing their related threats. Chronosequence studies show that long-term paddy use ("age") changes soil properties and redox biogeochemistry through soil organic carbon (SOC) accumulation, its association to amorphous iron (Fe) phases, and increased microbial activity. Using paddy and non-paddy soils from a chronosequence as proxies of soil development and incubating them at different temperatures, we show that paddy soil age influences the response of paddies to changes in temperature. Older paddies showed up to a 6-fold higher CH4 production with increasing temperature, compared to a 2-fold increase in young ones. Contrarily, changes in As mobility were higher in non-paddies and young paddies due to a lack of Fe-SOC-sorption sites. Temperature increased the formation of phytotoxic methylated As in all paddies, posing a risk for rice production. Mitigation strategies for future maintenance, abandonment, or management of paddy soils should include the consideration that history of use shapes the soils' biogeochemistry and microbiology and can influence the response of paddy soils to future temperature increases.
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Affiliation(s)
- José M León Ninin
- Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440 Bayreuth, Germany
| | - Alejandra Higa Mori
- Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440 Bayreuth, Germany
| | - Johanna Pausch
- Agroecology, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440 Bayreuth, Germany
| | - Britta Planer-Friedrich
- Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440 Bayreuth, Germany.
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68
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Markey E, Hourihane Clancy J, Martínez-Bracero M, Sarda-Estève R, Baisnée D, McGillicuddy EJ, Sewell G, Skjøth CA, O'Connor DJ. Spectroscopic detection of bioaerosols with the wibs-4+: Anthropogenic and meteorological impacts. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 943:173649. [PMID: 38852865 DOI: 10.1016/j.scitotenv.2024.173649] [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: 03/11/2024] [Revised: 04/24/2024] [Accepted: 05/28/2024] [Indexed: 06/11/2024]
Abstract
This research builds upon a previous study that explored the potential of the modified WIBS-4+ to selectively differentiate and detect different bioaerosol classes. The current work evaluates the influence of meteorological and air quality parameters on bioaerosol concentrations, specifically pollen and fungal spore dynamics. Temperature was found to be the most influential parameter in terms of pollen production and release, showing a strong positive correlation. Wind data analysis provided insights into the potential geographic origins of pollen and fungal spore concentrations. Fungal spores were primarily shown to originate from a westerly direction, corresponding to agricultural land use, whereas pollen largely originated from a North-easterly direction, corresponding to several forests. The influence of air quality was also analysed to understand its potential impact on the WIBS fluorescent parameters investigated. Most parameters had a negative association with fungal spore concentrations, whereas several anthropogenic influences showed notable positive correlations with daily pollen concentrations. This is attributed to similar driving forces (meteorological parameters) and geographical origins. In addition, the WIBS showed a significant correlation with anthropogenic pollutants originating from combustion sources, suggesting the potential for such modified spectroscopic instruments to be utilized as air quality monitors. By combining all meteorological and pollution data along with WIBS-4+ channel data, a set of Multiple Linear Regression (MLR) analyses were completed. Successful results with R2 values ranging from 0.6 to 0.8 were recorded. The inclusion of meteorological parameters was dependent on the spore or pollen type being examined.
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Affiliation(s)
- Emma Markey
- School of Chemical Sciences, Dublin City University, D09 E432 Dublin, Ireland
| | | | | | - Roland Sarda-Estève
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE), CNRS-CEA-UVSQ, 91191 Saint-Aubin, France
| | - Dominique Baisnée
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE), CNRS-CEA-UVSQ, 91191 Saint-Aubin, France
| | - Eoin J McGillicuddy
- School of Chemical and Pharmaceutical Sciences, Technological University Dublin, D07 H6K8 Dublin, Ireland
| | - Gavin Sewell
- School of Chemical and Pharmaceutical Sciences, Technological University Dublin, D07 H6K8 Dublin, Ireland
| | - Carsten Ambelas Skjøth
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P.O. Box 358, DK-4000 Roskilde, Denmark
| | - David J O'Connor
- School of Chemical Sciences, Dublin City University, D09 E432 Dublin, Ireland
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69
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Wei N, Hu C, Dittmann E, Song L, Gan N. The biological functions of microcystins. WATER RESEARCH 2024; 262:122119. [PMID: 39059200 DOI: 10.1016/j.watres.2024.122119] [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: 05/21/2024] [Revised: 07/16/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024]
Abstract
Microcystins are potent hepatotoxins predominantly produced by bloom-forming freshwater cyanobacteria (e.g., Microcystis, Planktothrix, Dolichospermum). Microcystin biosynthesis involves large multienzyme complexes and tailoring enzymes encoded by the mcy gene cluster. Mutation, recombination, and deletion events have shaped the mcy gene cluster in the course of evolution, resulting in a large diversity of microcystin congeners and the natural coexistence of toxic and non-toxic strains. The biological functions of microcystins and their association with algal bloom formation have been extensively investigated over the past decades. This review synthesizes recent advances in decoding the biological role of microcystins in carbon/nitrogen metabolism, antioxidation, colony formation, and cell-to-cell communication. Microcystins appear to adopt multifunctional roles in cyanobacteria that reflect the adaptive plasticity of toxic cyanobacteria to changing environments.
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Affiliation(s)
- Nian Wei
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Chenlin Hu
- College of Pharmacy, University of Houston, Houston, TX 77204, USA
| | - Elke Dittmann
- Institute of Biochemistry and Biology, University of Potsdam, 14476 Potsdam-Golm, Germany
| | - Lirong Song
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Nanqin Gan
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
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70
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Yang J, Zhao Y, Qian L, Yu Y, Zhang Y, Zhang J. Modularization of dual recognized CRISPR/Cas12a system for the detection of Staphylococcus aureus assisted by hydrazone chemistry. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134877. [PMID: 38901249 DOI: 10.1016/j.jhazmat.2024.134877] [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: 03/12/2024] [Revised: 05/31/2024] [Accepted: 06/09/2024] [Indexed: 06/22/2024]
Abstract
In this work, a dual recognized CRISPR/Cas12a system has been proposed, in which the activation chain is cleverly divided into two parts that can serve for precise dual target recognition, and hydrazone chemistry is introduced for the formation of a whole activation chain. It has been further explored to construct a new method for the specific and sensitive detection of Staphylococcus aureus (SA) as one of the most common pathogens in infectious diseases. In virtue of proximity effect contributed by complementary base pairing, hydrazone chemistry accelerates the formation of the whole activation strand and improves the specificity of the CRISPR/Cas12a system, serving for the accurate analysis of SA. Moreover, the temporary aggregation of CRISPR/Cas12a around SA enhances its catalytical efficiency so as to further amplify signal. With high sensitivity, stability, reproducibility and specificity, the established method has been successfully applied to detect SA in complex substrates. Meanwhile, our established method can well evaluate the inhibition effect of chlorogenic acid and congo red in comparison with flow cytometry. ENVIRONMENTAL IMPLICATION: Bacterial pathogens exist widely in the environment and seriously threaten the safety of human health. Staphylococcus aureus (SA) is the most common pathogen of human suppurative infection, which can cause local suppurative infection, pneumonia, and even systemic infections such as sepsis. In this work, a dual recognized CRISPR/Cas12a system mediated by hydrazone chemistry has been proposed. With high sensitivity and low detection limit, the established method can specifically detect SA and effectively evaluate the antibacterial effect of inhibitors. This method is expected to be further developed into a detection method in different scenarios such as environmental monitoring and clinical diagnosis.
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Affiliation(s)
- Jingyi Yang
- Center for Molecular Recognition and Biosensing, Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair, Ministry of Education, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai 200444, PR China
| | - Yining Zhao
- Center for Molecular Recognition and Biosensing, Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair, Ministry of Education, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai 200444, PR China
| | - Lelin Qian
- Center for Molecular Recognition and Biosensing, Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair, Ministry of Education, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai 200444, PR China
| | - Ying Yu
- Center for Molecular Recognition and Biosensing, Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair, Ministry of Education, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai 200444, PR China; Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yuan Zhang
- Center for Molecular Recognition and Biosensing, Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair, Ministry of Education, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai 200444, PR China
| | - Juan Zhang
- Center for Molecular Recognition and Biosensing, Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair, Ministry of Education, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai 200444, PR China.
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Qiu Q, Li H, Sun X, Tian K, Gu J, Zhang F, Zhou D, Zhang X, Huo H. Integrating genomics, molecular docking, and protein expression to explore new perspectives on polystyrene biodegradation. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135031. [PMID: 38943889 DOI: 10.1016/j.jhazmat.2024.135031] [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: 03/25/2024] [Revised: 06/01/2024] [Accepted: 06/23/2024] [Indexed: 07/01/2024]
Abstract
Faced with the escalating challenge of global plastic pollution, this study specifically addresses the research gap in the biodegradation of polystyrene (PS). A PS-degrading bacterial strain was isolated from the gut of Tenebrio molitor, and genomics, molecular docking, and proteomics were employed to thoroughly investigate the biodegradation mechanisms of Pseudomonas putida H-01 against PS. Using scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (ATR-FTIR), and contact angle analysis, significant morphological and structural changes in the PS films under the influence of the H-01 strain were observed. The study revealed several potential degradation genes and ten enzymes that were specifically upregulated in the PS degradation environment. Additionally, a novel protein with laccase-like activity, LacQ1, was purified from this strain for the first time, and its crucial role in the PS degradation process was confirmed. Through molecular docking and molecular dynamics (MD) simulations, the interactions between the enzymes and PS were detailed, elucidating the binding and catalytic mechanisms of the degradative enzymes with the substrate. These findings have deepened our understanding of PS degradation.
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Affiliation(s)
- Qing Qiu
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun City, Jilin Province, China
| | - Han Li
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun City, Jilin Province, China
| | - Xuejian Sun
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun City, Jilin Province, China
| | - Kejian Tian
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun City, Jilin Province, China
| | - Jinming Gu
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun City, Jilin Province, China
| | - Fenglin Zhang
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun City, Jilin Province, China
| | - Dandan Zhou
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun City, Jilin Province, China; Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China
| | - Xinwen Zhang
- College of Pharmacy, Hainan Vocational University of Science and Technology, Haikou 571126, China.
| | - Hongliang Huo
- School of Environment, Northeast Normal University, No. 2555 Jingyue Avenue, Changchun City, Jilin Province, China; Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, Northeast Normal University, Changchun 130117, China.
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72
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Mork S, Johannessen M, Škalko-Basnet N, Jøraholmen MW. Chitosan and liposomal delivery systems for epicatechin or propyl gallate targeting localized treatment of vulvovaginal candidiasis. Int J Pharm 2024; 662:124489. [PMID: 39032871 DOI: 10.1016/j.ijpharm.2024.124489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/19/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
Natural polyphenols are promising alternatives to antifungals for novel treatments of vulvovaginal candidiasis (VVC) in an era of antimicrobial resistance. However, polyphenols are poorly soluble and prone to degradation. To overcome their limitations, we propose incorporation in liposomes. The study aimed to develop chitosan and liposome comprising delivery systems for epicatechin (EC) or propyl gallate (PG) as treatment of VVC. EC was selected for its antioxidative properties and PG as an ester of antifungal gallic acid. To improve formulation retention at vaginal site, mucoadhesive chitosan was introduced into formulation as liposomal surface coating or hydrogel due to intrinsic antifungal properties. These polyphenol-loaded liposomes exhibited an average size of 125 nm with a 64 % entrapment efficiency (for both polyphenols). A sustained in vitro polyphenol release was seen from liposomes, particularly in chitosan hydrogel (p < 0.01 or lower). Viscosity was evaluated since increased viscosity upon mucin contact indicated adhesive bond formation between chitosan and mucin confirming mucoadhesiveness of formulations. Antifungal activity was evaluated by the broth microdilution method on Candida albicans CRM-10231. Unlike PG, incorporation of EC in liposomes enabled antifungal activity. Fungicidal activity of chitosan was confirmed both when used as liposomal coating material and as hydrogel vehicle.
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Affiliation(s)
- Silje Mork
- Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, UiT The Arctic University of Norway, Universitetsveien 57, 9037 Tromsø, Norway
| | - Mona Johannessen
- Research Group for Host Microbe Interactions, Department of Medical Biology, Faculty of Health Sciences, UiT The Arctic University of Norway, Universitetsveien 57, 9037 Tromsø, Norway
| | - Nataša Škalko-Basnet
- Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, UiT The Arctic University of Norway, Universitetsveien 57, 9037 Tromsø, Norway
| | - May Wenche Jøraholmen
- Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, UiT The Arctic University of Norway, Universitetsveien 57, 9037 Tromsø, Norway.
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73
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Hao Y, Wang R, Ni T, Monk BC, Tyndall JDA, Bao J, Wang M, Chi X, Yu S, Jin Y, Zhang D, Yan L, Xie F. Synthesis and antifungal evaluation of novel triazole derivatives bearing a pyrazole-methoxyl moiety. Eur J Med Chem 2024; 275:116637. [PMID: 38959728 DOI: 10.1016/j.ejmech.2024.116637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/17/2024] [Accepted: 06/27/2024] [Indexed: 07/05/2024]
Abstract
Life-threatening invasive fungal infections pose a serious threat to human health. A series of novel triazole derivatives bearing a pyrazole-methoxyl moiety were designed and synthesized in an effort to obtain antifungals with potent, broad-spectrum activity that are less susceptible to resistance. Most of these compounds exhibited moderate to excellent in vitro antifungal activities against Candida albicans SC5314 and 10,231, Cryptococcus neoformans 32,609, Candida glabrata 537 and Candida parapsilosis 22,019 with minimum inhibitory concentration (MIC) values of ≤0.125 μg/mL to 0.5 μg/mL. Use of recombinant Saccharomyces cerevisiae strains showed compounds 7 and 10 overcame the overexpression and resistant-related mutations in ERG11 of S. cerevisae and several pathogenic Candida spp. Despite being substrates of the C. albicans and Candida auris Cdr1 drug efflux pumps, compounds 7 and 10 showed moderate potency against five fluconazole (FCZ)-resistant fungi with MIC values from 2.0 μg/mL to 16.0 μg/mL. Growth kinetics confirmed compounds 7 and 10 had much stronger fungistatic activity than FCZ. For C. albicans, compounds 7 and 10 inhibited the yeast-to-hyphae transition, biofilm formation and destroyed mature biofilm more effectively than FCZ. Preliminary mechanism of action studies showed compounds 7 and 10 blocked the ergosterol biosynthesis pathway at Erg11, ultimately leading to cell membrane disruption. Further investigation of these novel triazole derivatives is also warranted by their predicted ADMET properties and low cytotoxicity.
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Affiliation(s)
- Yumeng Hao
- School of Pharmacy, The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Naval Medical University, No.325 Guohe Road, Shanghai, 200433, China
| | - Ruina Wang
- School of Pharmacy, The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Naval Medical University, No.325 Guohe Road, Shanghai, 200433, China
| | - Tingjunhong Ni
- Department of Pharmacy, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No.1239 Siping Road, Shanghai, 200072, China
| | - Brian C Monk
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, 9016, New Zealand
| | - Joel D A Tyndall
- School of Pharmacy, University of Otago, Dunedin, 9054, New Zealand
| | - Junhe Bao
- School of Pharmacy, The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Naval Medical University, No.325 Guohe Road, Shanghai, 200433, China
| | - Mengyuan Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, No.103 Wenhua Road, Shenyang, 110016, China
| | - Xiaochen Chi
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, No.103 Wenhua Road, Shenyang, 110016, China
| | - Shichong Yu
- School of Pharmacy, The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Naval Medical University, No.325 Guohe Road, Shanghai, 200433, China
| | - Yongsheng Jin
- School of Pharmacy, The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Naval Medical University, No.325 Guohe Road, Shanghai, 200433, China
| | - Dazhi Zhang
- School of Pharmacy, The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Naval Medical University, No.325 Guohe Road, Shanghai, 200433, China; Department of Pharmacy, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, No.1239 Siping Road, Shanghai, 200072, China.
| | - Lan Yan
- School of Pharmacy, The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Naval Medical University, No.325 Guohe Road, Shanghai, 200433, China.
| | - Fei Xie
- School of Pharmacy, The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Naval Medical University, No.325 Guohe Road, Shanghai, 200433, China.
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74
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Zhou Y, Wang Y, Yao S, Zhao X, Kong Q, Cui L, Zhang H. Driving mechanisms for the adaptation and degradation of petroleum hydrocarbons by native microbiota from seas prone to oil spills. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135060. [PMID: 38943887 DOI: 10.1016/j.jhazmat.2024.135060] [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: 02/15/2024] [Revised: 06/15/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
Offshore waters have a high incidence of oil pollution, which poses an elevated risk of ecological damage. The microbial community composition and metabolic mechanisms influenced by petroleum hydrocarbons vary across different marine regions. However, research on metabolic strategies for in-situ petroleum degradation and pollution adaptation remains in its nascent stages. This study combines metagenomic techniques with gas chromatography-mass spectrometry (GC-MS) analysis. The data show that the genera Pseudoalteromonas, Hellea, Lentisphaera, and Polaribacter exhibit significant oil-degradation capacity, and that the exertion of their degradation capacity is correlated with nutrient and oil pollution stimuli. Furthermore, tmoA, badA, phdF, nahAc, and fadA were found to be the key genes involved in the degradation of benzene, polycyclic aromatic hydrocarbons, and their intermediates. Key genes (INSR, SLC2A1, and ORC1) regulate microbial adaptation to oil-contaminated seawater, activating oil degradation processes. This process enhances the biological activity of microbial communities and accounts for the geographical variation in their compositional structure. Our results enrich the gene pool for oil pollution adaptation and degradation and provide an application basis for optimizing bioremediation intervention strategies.
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Affiliation(s)
- Yumiao Zhou
- College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Ying Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China
| | - Shudi Yao
- College of Geography and Environment, Shandong Normal University, Jinan 250014, China
| | - Xinyu Zhao
- Laoshan Laboratory, Qingdao 266237, China
| | - Qiang Kong
- College of Geography and Environment, Shandong Normal University, Jinan 250014, China
| | - Lihua Cui
- College of Geography and Environment, Shandong Normal University, Jinan 250014, China
| | - Huanxin Zhang
- College of Geography and Environment, Shandong Normal University, Jinan 250014, China.
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75
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Ruiz-Sánchez R, Arencibia-Jorge R, Tagüeña J, Jiménez-Andrade JL, Carrillo-Calvet H. Exploring research on ecotechnology through artificial intelligence and bibliometric maps. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2024; 21:100386. [PMID: 38328508 PMCID: PMC10848037 DOI: 10.1016/j.ese.2023.100386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 02/09/2024]
Abstract
Ecotechnology, quintessential for crafting sustainable socio-environmental strategies, remains tantalizingly uncharted. Our analysis, steered by the nuances of machine learning and augmented by bibliometric insights, delineates the expansive terrain of this domain, elucidates pivotal research themes and conundrums, and discerns the vanguard nations in this field. Furthermore, we deftly connect our discoveries to the United Nations' 2030 Sustainable Development Goals, thereby accentuating the profound societal ramifications of ecotechnology.
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Affiliation(s)
- Ricardo Ruiz-Sánchez
- Unidad Profesional Interdisciplinaria de Ingeniería Palenque (UPIIP), Instituto Politécnico Nacional, Palenque, Chiapas, CP 29960, Mexico
- Complexity Sciences Center, National Autonomous University of Mexico, Circuito Centro Cultural s/n, Coyoacan, 04510, Mexico City, Mexico
| | - Ricardo Arencibia-Jorge
- Complexity Sciences Center, National Autonomous University of Mexico, Circuito Centro Cultural s/n, Coyoacan, 04510, Mexico City, Mexico
| | - Julia Tagüeña
- Complexity Sciences Center, National Autonomous University of Mexico, Circuito Centro Cultural s/n, Coyoacan, 04510, Mexico City, Mexico
- Institute of Renewable Energies (IER), National Autonomous University of Mexico, Priv. Xochicalco s/n, Col. Centro, Temixco, Morelos, CP 62580, Mexico
| | - José Luis Jiménez-Andrade
- Complexity Sciences Center, National Autonomous University of Mexico, Circuito Centro Cultural s/n, Coyoacan, 04510, Mexico City, Mexico
- Faculty of Sciences, National Autonomous University of Mexico, Circuito Centro Cultural s/n, Coyoacan, 04510, Mexico City, Mexico
| | - Humberto Carrillo-Calvet
- Complexity Sciences Center, National Autonomous University of Mexico, Circuito Centro Cultural s/n, Coyoacan, 04510, Mexico City, Mexico
- Faculty of Sciences, National Autonomous University of Mexico, Circuito Centro Cultural s/n, Coyoacan, 04510, Mexico City, Mexico
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76
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Spedicato M, Ronchi GF, Profeta F, Traini S, Capista S, Leone A, Iorio M, Portanti O, Palucci C, Pulsoni S, Testa L, Serroni A, Rossi E, Armillotta G, Laguardia C, D'Alterio N, Savini G, Di Ventura M, Lorusso A, Mercante MT. Efficacy of an inactivated EHDV-8 vaccine in preventing viraemia and clinical signs in experimentally infected cattle. Virus Res 2024; 347:199416. [PMID: 38897236 PMCID: PMC11261067 DOI: 10.1016/j.virusres.2024.199416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/07/2024] [Accepted: 06/09/2024] [Indexed: 06/21/2024]
Abstract
Epizootic haemorrhagic disease (EHD), caused by the EHD virus (EHDV), is a vector-borne viral disease transmitted through Culicoides biting midges. EHDV comprises seven serotypes (1, 2, and 4-8), with EHDV-8 having recently emerged and spread in Europe over the last two years. Such event has raised concerns about the significant threat posed by EHDV-8 to livestock industry. In this study, an inactivated vaccine against EHDV-8 (vEHDV8-IZSAM) was developed. Safety and efficacy of the vaccine were evaluated in calves through clinical, serological, and virological monitoring following experimental challenge. The vaccine was proven safe, with only transient fever and localized reactions observed in a few animals, consistent with adjuvanted vaccine side effects. vEHDV8-IZSAM elicited a robust humoral response, as evidenced by the presence of neutralizing antibodies. After challenge with a virulent isolate, viraemia and clinical signs were evidenced in control animals but in none of the vaccinated animals. This study highlights the potential of vEHDV8-IZSAM as a safe and highly effective vaccine against EHDV-8 in cattle. It offers protection from clinical disease and effectively prevents viraemia. With the recent spread of EHDV-8 in European livestock, the use of an inactivated vaccine could be key in protecting animals from clinical disease and thus to mitigate the economic impact of the disease. Further investigations are warranted to assess the duration of the induced immunity and the applicability of this vaccine in real-world settings. Accordingly, joint efforts between public veterinary institutions and pharmaceutical companies are recommended to scale up vaccine production.
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Affiliation(s)
- Massimo Spedicato
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy.
| | | | - Francesca Profeta
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Sara Traini
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Sara Capista
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Alessandra Leone
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Mariangela Iorio
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Ottavio Portanti
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Cristiano Palucci
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Simone Pulsoni
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Lilia Testa
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Anna Serroni
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Emanuela Rossi
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Gisella Armillotta
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Caterina Laguardia
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Nicola D'Alterio
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Giovanni Savini
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Mauro Di Ventura
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Alessio Lorusso
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
| | - Maria Teresa Mercante
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise-(IZSAM), Teramo Italy
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77
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Huang L, Jia L. Disseminated nocardiosis caused by Nocardia otitidiscaviarum-A case report. Diagn Microbiol Infect Dis 2024; 110:116347. [PMID: 38878341 DOI: 10.1016/j.diagmicrobio.2024.116347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/19/2024] [Accepted: 05/09/2024] [Indexed: 07/30/2024]
Abstract
In this article we report a case of disseminated nocardiosis caused by Nocardia otitidiscaviarum in an immunocompetent patient with chronic obstructive pulmonary disease (COPD) who complained of a cough, followed by skin and intracranial lesions. On metagenomic next-generation sequencing (mNGS) technology of respiratory samples (bronchoalveolar lavage fluid, BALF) Nocardia otitidiscaviarum was identified. The patient was treated with therapy combined with a low dose of TMP-SMX and imipenem cilastatin sodium and had a favorable outcome. The timely diagnosis of Nocardia with the help of mNGS technology and early rational treatment of TMP-SMX can help improve the prognosis.
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Affiliation(s)
- Linyue Huang
- Department of Neurology, West China Hospital of Sichuan University, Chengdu Sichuan 610041, PR China
| | - Lian Jia
- Pulmonary and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu Sichuan 610041, PR China; State Key Laboratory of Respiratory Health and Multimorbidity, Chengdu Sichuan 610041, PR China.
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78
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Guan Z, Liu Q, Ma CB, Du Y. Electrochemical microfluidic sensing platforms for biosecurity analysis. Anal Bioanal Chem 2024; 416:4663-4677. [PMID: 38523160 DOI: 10.1007/s00216-024-05256-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 03/26/2024]
Abstract
Biosecurity encompasses the health and safety of humans, animals, plants, and the environment. In this article, "biosecurity" is defined as encompassing the comprehensive aspects of human, animal, plant, and environmental safety. Reliable biosecurity testing technology is the key point for effectively assessing biosecurity risks and ensuring biosecurity. Therefore, it is crucial to develop excellent detection technologies to detect risk factors that can affect biosecurity. An electrochemical microfluidic biosensing platform integrates fluid control, target recognition, signal transduction, and output and incorporates the advantages of electrochemical analysis technology and microfluidic technology. Thus, an electrochemical microfluidic biosensing platform, characterized by exceptional analytical sensitivity, portability, rapid analysis speed, low reagent consumption, and low risk of contamination, shows considerable promise for biosecurity detection compared to traditional, more complex, and time-consuming detection technologies. This review provides a concise introduction to electrochemical microfluidic biosensors and biosecurity. It highlights recent research advances in utilizing electrochemical microfluidic biosensing platforms to assess biosecurity risk factors. It includes the use of electrochemical microfluidic biosensors for the detection of risk factors directly endangering biosecurity (direct application: namely, risk factors directly endangering the health of human, animals, and plants) and for the detection of risk factors indirectly endangering biosecurity (indirect application: namely, risk factors endangering the safety of food and the environment). Finally, we outline the current challenges and future perspectives of electrochemical microfluidic biosensing platforms.
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Affiliation(s)
- Zhaowei Guan
- Key Laboratory of Polyoxometalate Science of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun, 130024, Jilin, China
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China
| | - Quanyi Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China
- School of Applied Chemistry and Engineering, University of Science & Technology of China, Hefei, 230026, Anhui, China
| | - Chong-Bo Ma
- Key Laboratory of Polyoxometalate Science of Ministry of Education, National & Local United Engineering Laboratory for Power Batteries, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun, 130024, Jilin, China.
| | - Yan Du
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China.
- School of Applied Chemistry and Engineering, University of Science & Technology of China, Hefei, 230026, Anhui, China.
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79
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Kang K, Liu X, Li P, Yang S, Lei Y, Lv Y, Hu Y. Exploring Citronella's inhibitory mechanism against Listeria monocytogenes and its utilization in preserving cheese. Food Microbiol 2024; 122:104550. [PMID: 38839218 DOI: 10.1016/j.fm.2024.104550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/13/2024] [Accepted: 04/18/2024] [Indexed: 06/07/2024]
Abstract
Listeria monocytogenes presents significant risk to human health due to its high resistance and capacity to form toxin-producing biofilms that contaminate food. The objective of this study was to assess the inhibitory effect of citronella aldehyde (CIT) on L. monocytogenes and investigate the underlying mechanism of inhibition. The results indicated that the minimum inhibitory concentration (MIC) and Minimum sterilisation concentration (MBC) of CIT against L. monocytogenes was 2 μL/mL. At this concentration, CIT was able to effectively suppress biofilm formation and reduce metabolic activity. Crystalline violet staining and MTT reaction demonstrated that CIT was able to inhibit biofilm formation and reduce bacterial cell activity. Furthermore, the motility assessment assay revealed that CIT inhibited bacterial swarming and swimming. Scanning electron microscopy (SEM) and laser confocal microscopy (LSCM) observations revealed that CIT had a significant detrimental effect on L. monocytogenes cell structure and biofilm integrity. LSCM also observed that nucleic acids of L. monocytogenes were damaged in the CIT-treated group, along with an increase in bacterial extracellular nucleic acid leakage. The proteomic results also confirmed the ability of CIT to affect the expression of proteins related to processes including metabolism, DNA replication and repair, transcription and biofilm formation in L. monocytogenes. Consistent with the proteomics results are ATPase activity and ATP content of L. monocytogenes were significantly reduced following treatment with various concentrations of CIT. Notably, CIT showed good inhibitory activity against L. monocytogenes on cheese via fumigation at 4 °C.This study establishes a foundation for the potential application of CIT in food safety control.
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Affiliation(s)
- Kun Kang
- School of Biological Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan, 450001, People's Republic of China
| | - Xingsai Liu
- School of Biological Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan, 450001, People's Republic of China
| | - Peiyuan Li
- School of Biological Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan, 450001, People's Republic of China
| | - Shuaikun Yang
- School of Biological Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan, 450001, People's Republic of China
| | - Yang Lei
- School of Biological Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan, 450001, People's Republic of China
| | - Yangyong Lv
- School of Biological Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan, 450001, People's Republic of China
| | - Yuansen Hu
- School of Biological Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan, 450001, People's Republic of China.
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80
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Wang Z, Xue H, Sun Y, Wang Q, Sun W, Zhang H. Deciphering the Biological Aging Impact on Alveolar Bone Loss: Insights From α-Klotho and Renal Function Dynamics. J Gerontol A Biol Sci Med Sci 2024; 79:glae172. [PMID: 38995226 DOI: 10.1093/gerona/glae172] [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: 04/09/2024] [Indexed: 07/13/2024] Open
Abstract
Alveolar bone loss is generally considered a chronological age-related disease. As biological aging process is not absolutely determined by increasing age, whether alveolar bone loss is associated with increasing chronological age or biological aging remains unclear. Accurately distinguishing whether alveolar bone loss is chronological age-related or biological aging-related is critical for selecting appropriate clinical treatments. This study aimed to identify the relationship between alveolar bone loss and body aging. In total, 3 635 participants from the National Health and Nutrition Examination Survey and 71 living kidney transplant recipients from Gene Expression Omnibus Datasets were enrolled. Multivariate regression analysis, smooth curve fittings, and generalized additive models were used to explore the association among alveolar bone loss, age, serum α-Klotho level, renal function markers, as well as between preoperative creatinine and renal cortex-related α-Klotho gene expression level. Meanwhile, a 2-sample Mendelian randomization (MR) study was conducted to assess the causal relationship between α-Klotho and periodontal disease (4 376 individuals vs 361 194 individuals). As a biological aging-related indicator, the α-Klotho level was negatively correlated with impaired renal function and alveolar bone loss. Correspondingly, accompanied by decreasing renal function, it was manifested with a downregulated expression level of α-Klotho in the renal cortex and aggravated alveolar bone loss. The MR analysis further identified the negative association between higher genetically predicted α-Klotho concentrations with alveolar bone loss susceptibility using the IVW (odds ratio [OR] = 0.999, p = .005). However, an inversely U-shaped association was observed between chronological age and alveolar bone loss, which is especially stable in men (the optimal cutoff values were both 62 years old). For men above 62 years old, increasing age is converted to protective factor and is accompanied by alleviated alveolar bone loss. Alveolar bone loss that is directly associated with decreased renal function and α-Klotho level was related to biological aging rather than chronological age. The renal-alveolar bone axis could provide a new sight of clinical therapy in alveolar bone loss.
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Affiliation(s)
- Zifei Wang
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei, China
| | - Hao Xue
- Department of Stomatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yuqiang Sun
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei, China
| | - Qing Wang
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei, China
| | - Wansu Sun
- Department of Stomatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hengguo Zhang
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei, China
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81
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Haq MA, Nazir M, Jabeen G, Jabeen N, Naz S, Nawaz H, Xu J. Inhibitory effect of polyphenols from sumac, pomegranate and Indian almond on urease producing bacteria and jack bean urease activity. Int J Biol Macromol 2024; 276:133735. [PMID: 38986980 DOI: 10.1016/j.ijbiomac.2024.133735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 05/27/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
Urinary tract infection caused by Klebsiella, Proteus and Streptococcus is a urease dependent process, hence treatment of these infections by antibacterial compounds lies in inhibition of their virulence factors. The crude methanolic extracts derived from sumac fruit, pomegranate peel and Indian almond leaves were separated into anthocyanin and non-anthocyanin fractions using solid phase cartridges. The inhibitory effect of these fractions was determined on the growth of urease producing species and jack bean urease activity. Known compounds in the fractions were also docked with ureases of different biological origins viz. K. pneumoniae (PDB ID: 8HCN), K. aerogenes (PDB ID: 2KAU), Helicobacter pylori (PDB ID:8HC1)and Canavalia ensiformis (jack bean) (PDB ID: 3LA4) to determine their binding affinities and interaction with the enzyme. All the fractions showed significant inhibition growth for P. mirabilis, S. epidermidis and K.pneumoniae. Among the samples, sumac showed greatest inhibition against all (MIC 6-25 mg.mL-1) while among the fractions, anthocyanin was found to be most active (MIC 6-12 mg/mL). Likewise, all fractions inhibited urease with lowest ICs50 shown by sumac fractions (21-116 μg.mL-1). Out of 39 compounds docked, 27 showed interaction with movable flaps and/or active site of ureases which explains their mode of inhibition.
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Affiliation(s)
- Muhammad Abdul Haq
- Department of Food Science & Technology, University of Karachi, 75270, Pakistan.
| | - Mudassir Nazir
- Department of Food Science & Technology, University of Karachi, 75270, Pakistan
| | - Gul Jabeen
- Department of Microbiology, University of Karachi, 75270, Pakistan
| | - Nusrat Jabeen
- Department of Microbiology, University of Karachi, 75270, Pakistan.
| | - Shahina Naz
- Department of Food Science & Technology, University of Karachi, 75270, Pakistan.
| | - Haq Nawaz
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Changjiangxi Road, Huaian 223300, Jiangsu, PR China.
| | - Jiaxing Xu
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Changjiangxi Road, Huaian 223300, Jiangsu, PR China.
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82
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Kojom Foko LP, Jakhan J, Narang G, Singh V. Geographical and temporal dynamics of genetic diversity of Plasmodium falciparum merozoite surface proteins 1/2 in India. J Parasit Dis 2024; 48:610-623. [PMID: 39145372 PMCID: PMC11319558 DOI: 10.1007/s12639-024-01698-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 06/17/2024] [Indexed: 08/16/2024] Open
Abstract
The high genetic diversity of Plasmodium falciparum (Pf) is a big obstacle to successful vaccine development programs. Here, the geographical and temporal dynamics of the genetic diversity of Indian Pf isolates from patients living in Ranchi, Raipur, Mewat, and Rourkela were analyzed. Typing and frequency of merozoite surface protein 1 and 2 genes (pfmsp1/2), their genotypes, clonality, heterozygosity, multiplicity of infection, and neutral evolution metrics were computed. A phylogenetic analysis was also performed for these two genes. The dominant allelic types were K1 (55%) and MAD20 (55%) for msp1, and FC27 (64.7%) for msp2. Infections were mainly monoclonal in Ranchi and Mewat while polyclonal in Raipur and Rourkela. Polyclonal infections dropped from 57.1 to 71.3% in 2013 to 33.3-33.4% in 2016 in Raipur. K1 and MAD20 sequences were highly diverse due to the organization of the amino acid units SGG, SVA, SVT, and SGN. The IC/3D7-related G,S,A-rich region showed a large variation of four to eight amino acid repeats, including mostly GAVASA (81.8%), GSGA (54.5%), and GASGSA (45.5%). The 32-amino acid sequence of the FC27 type was present in all isolates with several mutations. The msp1/2 sequences were not under neutral evolution, except the K1 family, which is under balancing selection. The msp1/2 sequences are phylogenetically closer to previous Indian sequences than those from Africa, Asia, the Americas, and Oceania. This study outlines a high genetic diversity of Pf infections with complex structure, and evolutionary signature changed with time. Supplementary Information The online version contains supplementary material available at 10.1007/s12639-024-01698-8.
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Affiliation(s)
- Loick Pradel Kojom Foko
- Parasite and Host Biology Group, ICMR-National Institute of Malaria Research, Dwarka, Sector 8, New-Delhi, 110077 India
| | - Jahnvi Jakhan
- Parasite and Host Biology Group, ICMR-National Institute of Malaria Research, Dwarka, Sector 8, New-Delhi, 110077 India
- Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Geetika Narang
- Parasite and Host Biology Group, ICMR-National Institute of Malaria Research, Dwarka, Sector 8, New-Delhi, 110077 India
- Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Vineeta Singh
- Parasite and Host Biology Group, ICMR-National Institute of Malaria Research, Dwarka, Sector 8, New-Delhi, 110077 India
- Academy of Scientific and Innovative Research, Ghaziabad, India
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83
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Hrabalová V, Opial T, Musilová J, Sedlář K, Obruča S. Biotransformation of ferulic acid into vanillyl alcohol and vanillic acid employing thermophilic bacterium Caldimonas thermodepolymerans. Enzyme Microb Technol 2024; 179:110475. [PMID: 38924876 DOI: 10.1016/j.enzmictec.2024.110475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 06/21/2024] [Accepted: 06/21/2024] [Indexed: 06/28/2024]
Abstract
Caldimonas thermodepolymerans, a Gram-negative, moderately thermophilic bacterium, exhibits a remarkable biotechnological potential. Given the presence of genes in its genome dedicated to the metabolization of ferulic acid (FA), this study aimed to explore the bacterium's capability for biotransforming FA into high-value metabolites. The results unequivocally demonstrate the bacterium's proficiency in the efficient and rapid conversion of FA into vanillyl alcohol (VOH) and vanillic acid (VA). By manipulating key cultivation parameters, such as adjusting initial FA doses and varying cultivation periods, the product profile can be tailored. Higher initial doses and shorter cultivation periods favor the production of VOH, while lower FA doses and extended cultivation periods lead to the predominant formation of VA. Furthermore, the process can be operated in a repeated-batch scenario. This underscores the potential of C. thermodepolymerans for industrial biotransformation of FA, presenting a promising avenue for leveraging its capabilities in practical applications.
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Affiliation(s)
- Vendula Hrabalová
- Department of Food Chemistry and Biotechnology, Faculty of Chemistry, Brno University of Technology, Purkynova 118, Brno 612 00, Czech Republic
| | - Tomáš Opial
- Department of Food Chemistry and Biotechnology, Faculty of Chemistry, Brno University of Technology, Purkynova 118, Brno 612 00, Czech Republic
| | - Jana Musilová
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 12, Brno 616 00, Czech Republic
| | - Karel Sedlář
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 12, Brno 616 00, Czech Republic
| | - Stanislav Obruča
- Department of Food Chemistry and Biotechnology, Faculty of Chemistry, Brno University of Technology, Purkynova 118, Brno 612 00, Czech Republic.
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84
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Ye Z, Shentu H, Zhou Q, Wu D, Li P, Gu Q. A novel bacteriocin against methicillin-resistant Staphylococcus aureus, purified from Lactiplantibacillus plantarum ZFM9. Food Chem 2024; 451:139344. [PMID: 38663238 DOI: 10.1016/j.foodchem.2024.139344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 03/23/2024] [Accepted: 04/09/2024] [Indexed: 05/26/2024]
Abstract
A novel bacteriocin, plantaricin ZFM9, was purified from Lactiplantibacillus plantarum ZFM9 using a combination of ammonium sulfate precipitation, XAD-2 macroporous resin, Sephadex G-50, Sephadex LH-20, and reversed-phase high performance liquid chromatography. The molecular mass of plantaricin ZFM9 was 1151.606 Da, and the purity was 98.3%. Plantaricin ZFM9 has thermal stability (95.6% retention at 120 °C for 30 min), pH stability (pH ≤ 5), and sensitivity to the pepsin, trypsin, papain, and proteinase K. Plantaricin ZFM9 exhibited broad-spectrum antimicrobial activity and notably inhibit methicillin-resistant Staphylococcus aureus D48 (MRSA). According to the results of electron microscopy and fluorescence leakage assay, it was found that plantaricin ZFM9 caused damage to the cells membrane and leakage of the contents of S. aureus D48. In addition, Lipid II was not the anti-MRSA target of plantaricin ZFM9. This study underscores the potential of plantaricin ZFM9 for applications in the food field and biopharmaceuticals against MRSA infection.
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Affiliation(s)
- Zhongdu Ye
- Zhejiang Key Laboratory of Food Microbiology and Nutritional Health, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Huifei Shentu
- Zhejiang Key Laboratory of Food Microbiology and Nutritional Health, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qingqing Zhou
- Zhejiang Key Laboratory of Food Microbiology and Nutritional Health, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Danli Wu
- Zhejiang Key Laboratory of Food Microbiology and Nutritional Health, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Ping Li
- Zhejiang Key Laboratory of Food Microbiology and Nutritional Health, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qing Gu
- Zhejiang Key Laboratory of Food Microbiology and Nutritional Health, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China.
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85
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Vingataramin Y, Quétel I, Pons MA, Talarmin A, Marcelino I. Spatiotemporal distribution of thermophilic free-living amoebae in recreational waters: A 5-year survey in Guadeloupe (French West Indies). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 941:173318. [PMID: 38777057 DOI: 10.1016/j.scitotenv.2024.173318] [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: 03/06/2024] [Revised: 05/04/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
Free-living amoebae (FLA) such as Acanthamoeba, Balamuthia mandrillaris, Naegleria fowleri and Sappinia pedata are naturally widespread in freshwater, causing rare but fatal and debilitating infections in humans. Although recent studies have shown an increase in infection rates, there is a paucity of epidemiological studies regarding the presence of these emerging pathogens in water. Herein, we studied the diversity and relative abundance of thermophilic FLA in different recreational baths in a tropical climate for 5 years. From 2018 to 2022, a total of 96 water samples were collected from 7 recreational baths (natural, tiled, regularly cleaned or not, and with temperatures ranging from 27 to 40 °C). DNA was extracted from FLA cultivated at 37 °C to detect thermophilic culturable FLA. Metabarcoding studies were conducted through FLA 18S rRNA gene amplicons sequencing; amplicon sequence variants (ASV) were extracted from each sample and taxonomy assigned against PR2 database using dada2 and phyloseq tools. We also searched for Naegleria sp. and N. fowleri using PCR targeting ITS and NFITS genes (respectively) and we quantified them using an optimized most probable number (MPN) method for FLA. Our results showed that differences in FLA diversity and abundance were observed amongst the 7 baths, but without a clear seasonal distribution. Naegleria, Vermamoeba and Stenamoeba were the most represented genera, while the genera Acanthamoeba and Vahlkampfia were mainly found in 2 baths. The MPN values for Naegleria sp. (NT/l) increased between 2018 and 2022, but the MPN values for N. fowleri (NF/l) seemed to decrease. Globally, our results showed that since we cannot establish a seasonal distribution of FLA, the regular presence of FLA (namely Naegleria and Acanthamoeba) in recreational waters can pose a potential threat in terms of neuroinfections as well as Acanthamoeba keratitis. It is thus imperious to perform the regular control of these baths as a preventive health measure.
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Affiliation(s)
| | - Isaure Quétel
- Institut Pasteur de la Guadeloupe, Les Abymes, Guadeloupe, France
| | - Marie-Anne Pons
- Agence Régionale de Santé (ARS) Guadeloupe, Les Abymes, France
| | - Antoine Talarmin
- Institut Pasteur de la Guadeloupe, Les Abymes, Guadeloupe, France
| | - Isabel Marcelino
- Institut Pasteur de la Guadeloupe, Les Abymes, Guadeloupe, France.
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86
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Chandrababu V, Parameswaranpillai J, Gopi JA, Pathak C, Midhun Dominic CD, Feng NL, Krishnasamy S, Muthukumar C, Hameed N, Ganguly S. Progress in food packaging applications of biopolymer-nanometal composites - A comprehensive review. BIOMATERIALS ADVANCES 2024; 162:213921. [PMID: 38870740 DOI: 10.1016/j.bioadv.2024.213921] [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: 01/07/2024] [Revised: 05/22/2024] [Accepted: 06/01/2024] [Indexed: 06/15/2024]
Abstract
Eco-friendly nanotechnology-enabled biopolymers are one of the novel concepts of packaging materials to substitute traditional synthetic polymers and their composites. This article succinctly reviews the recent developments of introducing additional functionalities to biopolymers using metal and metal oxide nanoparticles. The functionality of metal nanoparticles such as silver, zinc oxide, titanium dioxide, copper oxide, gold, and magnesium oxide, as food packaging materials were discussed. The addition of nanoparticles in biopolymers improves mechanical properties, gas barrier properties, durability, temperature stability, moisture stability, antimicrobial activity, antioxidant property, and UV absorbance and can prevent the presence of ethylene and oxygen, hence extending the shelf life of foodstuffs. Other than this, the functional activity of these biopolymer composite films helps them to act like smart or intelligent packaging. The selection of metal nanoparticles, particle migration, toxicological effect, and potential future scope in the food packaging industry are also reviewed.
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Affiliation(s)
- Vibha Chandrababu
- Wimpey Laboratories, Warehouse 1 & 2, Wimpey Building, Plot No: 364-8730, Al Quoz Industrial Area 1, Dubai, United Arab Emirates
| | - Jyotishkumar Parameswaranpillai
- Department of Science, Faculty of Science & Technology, Alliance University, Chandapura - Anekal Main Road, Anekal, Bengaluru 562 106, Karnataka, India; AU-Sophisticated Testing and Instrumentation Center, Alliance University, Chandapura - Anekal Main Road, Anekal, Bengaluru 562 106, Karnataka, India.
| | - Jineesh Ayippadath Gopi
- Department of Science, Faculty of Science & Technology, Alliance University, Chandapura - Anekal Main Road, Anekal, Bengaluru 562 106, Karnataka, India
| | - Chandni Pathak
- Department of Science, Faculty of Science & Technology, Alliance University, Chandapura - Anekal Main Road, Anekal, Bengaluru 562 106, Karnataka, India
| | - C D Midhun Dominic
- Department of Chemistry, Sacred Heart College, Cochin 682013, Kerala, India
| | - Ng Lin Feng
- Centre for Advanced Composite Materials (CACM), Universiti Teknologi Malaysia, 81310 Johor Bahru, Malaysia
| | - Senthilkumar Krishnasamy
- Department of Mechanical Engineering, PSG Institute of Technology and Applied Research, Coimbatore 641062, Tamil Nadu, India
| | - Chandrasekar Muthukumar
- SIMCRASH CENTRE, Department of Aerospace Engineering, Hindustan Institute of Technology & Science, Rajiv Gandhi Salai (OMR), Padur, Kelambakkam, Tamil Nadu 603103, India
| | - Nishar Hameed
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, Victoria 3122, Australia
| | - Sayan Ganguly
- Bar-Ilan Institute of Nanotechnology & Advanced Materials, Ramat Gan 5290002, Israel
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87
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Xue K, Bai Z, Fordour E, Guo S, Zhou Y, Yang Y, Liu X, Li Y, Liu CL. Bacterial surface display of PETase mutants and MHETase for an efficient dual-enzyme cascade catalysis. BIORESOURCE TECHNOLOGY 2024; 408:131177. [PMID: 39097240 DOI: 10.1016/j.biortech.2024.131177] [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: 02/16/2024] [Revised: 07/05/2024] [Accepted: 07/28/2024] [Indexed: 08/05/2024]
Abstract
Biological degradation of PET plastic holds great potential for plastic recycling. However, the high costs associated with preparing free enzymes for degrading PET make it unfeasible for industrial applications. Hence, we developed various cell catalysts by surface-displaying PETase mutants and MHETase using autotransporters in E. coli and P. putida. The efficiency of surface display was enhanced through modifying the host, co-expressing molecular chaperones, and evoluting the autotransporter. In strain EC9F, PET degradation rate was boosted to 3.85 mM/d, 51-fold and 23-fold increase compared to free enzyme and initial strain ED1, respectively. The reusability of cell catalyst EC9F was demonstrated with over 38 % and 30 % of its initial activity retained after 22 cycles of BHET degradation and 3 cycles of PET degradation. The highest reported PET degradation rate of 4.95 mM/d was achieved by the dual-enzyme cascade catalytic system EC9F+EM2+R, a mixture of cell catalyst EC9F and EM2 with surfactant rhamnolipid.
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Affiliation(s)
- Kai Xue
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, PR China.
| | - Zhonghu Bai
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, PR China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, PR China.
| | - Eric Fordour
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, PR China.
| | - Siqi Guo
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, PR China.
| | - Yuxuan Zhou
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, PR China.
| | - Yankun Yang
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, PR China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, PR China.
| | - Xiuxia Liu
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, PR China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, PR China.
| | - Ye Li
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, PR China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, PR China.
| | - Chun-Li Liu
- School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, PR China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, PR China.
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88
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Priyadarshi R, Uzun S, Rhim JW. Edible coating using carbon quantum dots for fresh produce preservation: A review of safety perspectives. Adv Colloid Interface Sci 2024; 331:103211. [PMID: 38852470 DOI: 10.1016/j.cis.2024.103211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/08/2024] [Accepted: 06/05/2024] [Indexed: 06/11/2024]
Abstract
Fresh produce deteriorates and spoils after harvest due to its perishable nature. Deterioration in quality over time has become a major problem for the food industry, placing an undue burden on the economy and agriculture. Food scientists have developed various methods and technologies to prevent spoilage of fruits and vegetables during storage and logistics. Utilizing carbon quantum dots (CQDs) in the form of active packaging and coatings has been a popular strategy recently. CQDs have recently attracted attention as sustainable and functional nanomaterials. CQDs are popular among food scientists due to their easy and economical synthesis, sustainability, non-toxicity, biocompatibility, edibility, UV protection, and antibacterial and antioxidant activities. Although many studies have been conducted and reviewed on the utilization of CQDs in the manufacture of flexible active packaging materials, relatively few studies have investigated the use of CQDs in edible coating formulations for fresh produce. The main reasons for this are concerns about the potential toxicity and edibility of CQDs if they are coated directly on fresh produce. Therefore, this review aims to address these issues by investigating the dose-dependent non-toxicity and biocompatibility of sustainable CQDs along with other important properties from a food packaging perspective. Additionally, this review focuses on the studies performed so far on the direct coating of CQD-based formulations on fresh and fresh-cut fruits and vegetables and discusses the important impact of CQDs on the quality of coated agricultural products. This review is intended to provide food packaging researchers with confidence and prospects for utilizing sustainable CQDs in direct coating formulations for food.
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Affiliation(s)
- Ruchir Priyadarshi
- BioNanocomposite Research Centre, Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Suzan Uzun
- Department of Food Engineering, Faculty of Agriculture, Tekirdag Namik Kemal University, Tekirdag, Turkey
| | - Jong-Whan Rhim
- BioNanocomposite Research Centre, Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Republic of Korea.
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89
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Ferreira TL, Leitão AC, da Silva LJ, do Amaral Valente Sá LG, de Farias Cabral VP, Rodrigues DS, Barbosa SA, de Andrade Neto JB, Barbosa AD, Almeida Moreira LE, França Rios ME, Cavalcanti BC, de Moraes MO, Nobre Júnior HV, da Silva CR. Mangiferin potentiates the activity of antifungal agents against fluconazole-resistant Candida spp. Future Microbiol 2024; 19:1157-1170. [PMID: 39012219 DOI: 10.1080/17460913.2024.2366627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 06/07/2024] [Indexed: 07/17/2024] Open
Abstract
Aim: To evaluate the antifungal activity of mangiferin against Candida spp. resistant to fluconazole.Materials & methods: The antifungal activity of mangiferin was assessed using broth microdilution and its interaction with azoles and amphotericin B was evaluated by checkerboard. The activity of mangiferin against Candida spp. biofilms was assessed using the MTT colorimetric assay and its possible mechanism of action was evaluated using flow cytometry.Results: Mangiferin showed activity against Candida albicans, Candida tropicalis and Candida parapsilosis resistant to fluconazole and showed synergism with azoles and amphotericin B. Mangiferin increased the activity of antifungals against Candida biofilms and caused depolarization of the mitochondrial membrane and externalization of phosphatidylserine, suggesting apoptosis.Conclusion: mangiferin combined with antifungals has potential against Candida spp.
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Affiliation(s)
- Thais Lima Ferreira
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - Amanda Cavalcante Leitão
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - Lisandra Juvêncio da Silva
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - Livia Gurgel do Amaral Valente Sá
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
- Christus University Center, Fortaleza 60.190-180, Ceará,Brazil
| | - Vitória Pessoa de Farias Cabral
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - Daniel Sampaio Rodrigues
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - Sarah Alves Barbosa
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - João Batista de Andrade Neto
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
- Christus University Center, Fortaleza 60.190-180, Ceará,Brazil
| | - Amanda Dias Barbosa
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - Lara Elloyse Almeida Moreira
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | | | - Bruno Coêlho Cavalcanti
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - Manoel Odorico de Moraes
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - Hélio Vitoriano Nobre Júnior
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
| | - Cecília Rocha da Silva
- Department of Clinical & Toxicological Analysis, Faculty of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza 60.430-370, Ceará, Brazil
- Drug Research and Development Center, Federal University of Ceará, Fortaleza 60.430-275, Ceará, Brazil
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90
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Gonciarz W, Płoszaj P, Chmiela M. Mycobacterium bovis BCG reverses deleterious effects of H. pylori components towards gastric barrier cells in vitro. Biomed Pharmacother 2024; 178:117193. [PMID: 39067167 DOI: 10.1016/j.biopha.2024.117193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/05/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024] Open
Abstract
Mycobacterium bovis (M. bovis) Bacillus Calmette-Guerin (BCG) strain used in immunotherapy of bladder cancer (onco-BCG) due to its acid tolerance can be a candidate for prevention or reversion of deleterious effects towards gastric cell barrier initiated by gastric pathogen Helicobacter pylori (Hp) with high resistance to commonly used antibiotics. Colonization of gastric mucosa by Hp promotes oxidative stress, apoptosis resulting in the gastric barrier damage. The aim of this study was to examine the ability of onco-BCG bacilli to control the Hp driven gastric damage using the model of Cavia porcellus primary gastric epithelial cells or fibroblasts in vitro. These cells were treated with Hp surface antigens (glycine acid extract-GE or lipopolysaccharide-LPS) alone or with onco-BCG bacilli and evaluated for cell apoptosis and proliferation in conjunction with the level of soluble lipid peroxidation marker (s4HNE). The cell migration was determined by "wound healing assay", while cytokine response of cells, including interleukin (IL)-33, IL-1β, IL-8 and tumor necrosis factor alpha (TNF-α), by the ELISA. The apoptosis of cells pulsed in vitro with Hp surface components present in GE or with LPS was reduced after exposure of cells to mycobacteria. Similarly, the cell regeneration which was diminished by Hp LPS has been improved in response to mycobacteria. This study reveals that vaccine mycobacteria may reduce gastric barrier damage induced by Hp infection.
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Affiliation(s)
- Weronika Gonciarz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland.
| | - Patrycja Płoszaj
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Magdalena Chmiela
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
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91
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Zhao Q, Xu Z, Liu X, Zhu H, Li Z, Liu Y, Yang J, Dong Q. Formation and recovery of Listeria monocytogenes in viable but nonculturable state under different temperatures combined with low nutrition and high NaCl concentration. Food Res Int 2024; 192:114774. [PMID: 39147498 DOI: 10.1016/j.foodres.2024.114774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 06/21/2024] [Accepted: 07/14/2024] [Indexed: 08/17/2024]
Abstract
The viable but nonculturable (VBNC) state occurs when bacteria lose their ability to grow and multiply on conventional media when stressed by adverse environmental factors, but they remain active and can revive under certain conditions, posing a food safety risk. In this study, the VBNC state of Listeria monocytogenes was induced with different temperatures combined with low nutrient conditions; the VBNC state of L. monocytogenes was confirmed in conjunction with the housekeeping gene abcZ using a molecular biology assay (PMA-qPCR) to calculate the viable bacterial count; The resuscitation conditions for the VBNC state of L. monocytogenes were investigated utilizing various nutrients in the culture medium and pasteurized milk. Four strains of L. monocytogenes reached the VBNC stage after 14, 21, 21, and 35 days at 20°C with 20% (or 30%) NaCl. Resuscitation studies indicate that Trypticase Soy Broth (TSB) combined with Tween 80 and sodium pyruvate is more effective for resuscitation. The Chinese national standard technology GB 4789.30-2016 was used to inoculate lettuce, chicken, and pasteurized milk with L. monocytogenes ATCC 19115 VBNC state. This research has significant implications for commercial food processing, long-term storage, disinfection, disease prevention, and control.
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Affiliation(s)
- Qing Zhao
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Zhiwen Xu
- Technical Center for Animal, Plant and Food Inspection and Quarantine of Shanghai Customs, 299 Mian Bei Rd., Shanghai 201210, China.
| | - Xin Liu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Huajian Zhu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Zhuosi Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Yangtai Liu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Jielin Yang
- Technical Center for Animal, Plant and Food Inspection and Quarantine of Shanghai Customs, 299 Mian Bei Rd., Shanghai 201210, China.
| | - Qingli Dong
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
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92
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Mohammed S, Çon AH. Postbiotic nanoparticles (postbiotics-NPs): a novel strategy for providing probiotics' health advantages through food consumption. Food Sci Biotechnol 2024; 33:2729-2736. [PMID: 39184983 PMCID: PMC11339192 DOI: 10.1007/s10068-024-01629-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/21/2024] [Accepted: 06/03/2024] [Indexed: 08/27/2024] Open
Abstract
In recent years, the term "postbiotics" has become increasingly popular in food microbiology, food science, and commercial products. This importance has been raised due to the safety issues associated with live bacterial cells. Postbiotics are defined as bioactive substances of probiotics. It confers unique health-promoting functions with its chemical structure, safe profile, and long shelf life. Meanwhile, postbiotics nanoparticles (postbiotics-NPs) can be considered novel postbiotic delivery systems to deliver bioactive components with health benefits and therapeutic aims, promote the shelf-life of food products, and develop novel functional foods. The present scientific literature shows that nanotechnology approaches are not yet mature enough to be used in postbiotic delivery systems. For all of that, the potential applications of postbiotics-NPs in the food industry and biomedical fields will be a new trend in the future.
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Affiliation(s)
- Sarhan Mohammed
- Department of Food Engineering, Faculty of Engineering, Ondokuz Mayis University, 55139 Atakum, Samsun Turkey
| | - Ahmet Hilmi Çon
- Department of Food Engineering, Faculty of Engineering, Ondokuz Mayis University, 55139 Atakum, Samsun Turkey
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93
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Yang Y, Shen Z, Shi F, Wang F, Wen N. Efgartigimod as a novel FcRn inhibitor for autoimmune disease. Neurol Sci 2024; 45:4229-4241. [PMID: 38644454 DOI: 10.1007/s10072-024-07460-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 03/11/2024] [Indexed: 04/23/2024]
Abstract
Immunoglobulin G (IgG) autoantibodies can lead to the formation of autoimmune diseases through Fab and/or Fc-mediated interactions with host molecules as well as activated T cells. The neonatal Fc receptor (FcRn) binds at acidic pH IgG and albumin, and the mechanism for prolonging serum IgG half-life is making IgG re-entry into circulation by prompting it not to be degraded by lysosomes and back to the cell surface. Given the FcRn receptor's essential role in IgG homeostasis, one of the strategies to promote the quick degradation of endogenous IgG is to suppress the function of FcRn, which is beneficial to the treatment of IgG-driven autoimmune disorders like myasthenia gravis (MG), chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), stiff person syndrome, and immune thrombocytopenia (ITP). We elaborately read the literature about efgartigimod and systematically reviewed the research progress and clinical application of this novel FcRn inhibitor in autoimmune diseases. Efgartigimod is the firstly FcRn antagonist developed and was approved on 17 December 2021 by the United States for the therapy of acetylcholine receptor-positive MG. In January 2022, efgartigimod received its second regulatory approval in Japan. In addition, the market authorization application in Europe was submitted and validated in August 2021. China's National Medical Products Administration officially accepted the marketing application of efgartigimod on July 13, 2022. To suppress the function of FcRn, which is beneficial to the treatment of IgG-driven autoimmune disorders like MG, CIDP, ITP, and stiff person syndrome. We review the rationale, clinical evidence, and future perspectives of efgartigimod for the treatment of autoimmune disease.
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Affiliation(s)
- Yun Yang
- Department of Stomatology, Yantai Yuhuangding Hospital, Yantai, Shandong, 264000, China
| | - Zhengxuan Shen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou, Zhejiang, 310000, China
| | - Fan Shi
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Shan'xi, Xi'an, 710000, China
| | - Fei Wang
- Department of Pharmacy, Yantai Yuhuangding Hospital, Yantai, Shandong, 264000, China.
| | - Ning Wen
- Department of Orthodontics, Hangzhou Dental Hospital, Hangzhou, Zhejiang, 310003, People's Republic of China.
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94
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Han K, Yue J, Li J, Zhang J, Lin J, Zhuang Q, Li N, Li S, Rong C, Hua M, Liu Y, Yang D, Gu C, Chen L, Zeng H, Chen C. Emergence of mcr-4.3 genes in a novel Shewanella specie isolated from the Arctic environment. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2024; 123:105636. [PMID: 38972619 DOI: 10.1016/j.meegid.2024.105636] [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: 03/22/2024] [Revised: 06/28/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
Mobile colistin resistance (mcr) genes are pivotal contributors to last-line of antimicrobial resistance in human infections. Shewanella, historically recognized as a natural environmental bacterium with metal reduction capabilities, recently has been observed in clinical settings. However, limited knowledge has been explored on genetic differences between strains from non-clinical and clinical strains. In this study, we conducted the whole genome sequencing on six Arctic strains, illustrated the phylogenetic relationships on published 393 Shewanella strains that categorized the genus into four lineages (L1 to L4). Over 86.4% of clinical strain group (CG) strains belonged to L1 and L4, carrying mcr-4 genes and a complete metal-reduction pathways gene cluster. Remarkably, a novel Arctic Shewanella strain in L3, exhibits similar genetic characteristics with CG strains that carried both mcr-4 genes and a complete metal reduction pathway gene cluster. It raised concerns about the transmission ability from environment to clinic setting causing in the potential infections, and emphasized the need for monitoring the emerging strains with human infections.
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Affiliation(s)
- Kai Han
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Jinglin Yue
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Jiarui Li
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Jiuming Zhang
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Jing Lin
- First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
| | - Qinghui Zhuang
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Na Li
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Sha Li
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Chengbo Rong
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Mingxi Hua
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yuwei Liu
- Emergency Department, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Duo Yang
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Chaoyang Gu
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Liang Chen
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Hui Zeng
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Chen Chen
- Biomedical Innovation Center and Beijing Key Laboratory for Therapeutic Cancer Vaccines, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
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95
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Shaheen N, Miao J, Li D, Xia B, Baoyinna B, Zhao Y, Zhao J. Indole-3-Acetic Acid Protects Against Lipopolysaccharide-induced Endothelial Cell Dysfunction and Lung Injury through the Activation of USP40. Am J Respir Cell Mol Biol 2024; 71:307-317. [PMID: 38761166 DOI: 10.1165/rcmb.2024-0159oc] [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: 04/02/2024] [Accepted: 05/18/2024] [Indexed: 05/20/2024] Open
Abstract
Lung microvascular endothelial cell (EC) dysfunction is the pathological hallmark of acute respiratory distress syndrome. Heat shock protein 90 (HSP90) is a key regulator in control of endothelial barrier disruption and inflammation. Our recent study has demonstrated that ubiquitin-specific peptidase 40 (USP40) preserves endothelial integrity by targeting HSP90β for its deubiquitination and inactivation. Indole-3-acetic acid (IAA), a plant hormone of the auxin class, can also be catabolized from dietary tryptophan by the intestinal microbiota. Accumulating evidence suggests that IAA reduces oxidative stress and inflammation and promotes intestinal barrier function. However, little is known about the role of IAA in endothelial cells and acute lung injury. In this study, we investigated the role of IAA in lung endothelial cell function in the context of acute lung injury. IAA exhibited EC barrier protection against LPS-induced reduction in transendothelial electrical resistance and inflammatory responses. The underlying mechanism of IAA on EC protective effects was investigated by examining the influence of IAA on degrees of HSP90 ubiquitination and USP40 activity. We identified that IAA, acting as a potential activator of USP40, reduces HSP90 ubiquitination, thereby protecting against LPS-induced inflammation in human lung microvascular endothelial cells as well as alleviating experimental lung injury. Furthermore, the EC protective effects of IAA against LPS-induced EC dysfunction and lung injury were abolished in USP40-deficient human lung microvascular endothelial cell and lungs of USP40 EC-specific knockout (USP40cdh5-ECKO) mice. Taken together, this study reveals that IAA protects against LPS-induced EC dysfunction and lung injury through the activation of USP40.
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Affiliation(s)
- Nargis Shaheen
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Jiaxing Miao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Donna Li
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Boyu Xia
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Boina Baoyinna
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Yutong Zhao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Jing Zhao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio
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96
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do Amaral COF, Kantovitiz KR, de Araújo VC, Marega T, Teixeira LN, Martinez EF. Assessment of dental and periodontal indices and Streptococcus mutans virulence in fragile X syndrome patients. JOURNAL OF INTELLECTUAL DISABILITY RESEARCH : JIDR 2024; 68:1026-1035. [PMID: 38717133 DOI: 10.1111/jir.13142] [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: 10/11/2023] [Revised: 02/16/2024] [Accepted: 04/11/2024] [Indexed: 08/23/2024]
Abstract
INTRODUCTION Fragile X syndrome (FXS) is the most common cause of hereditary genetic disorder in a single gene characterised by intellectual disability. Behavioural features such as autism, hyperactivity and anxiety disorder may be present. Biofilm development and pathogenicity of Streptococcus mutans may be altered because FXS renders the dental approach and oral hygiene more complex. OBJECTIVES The purpose of this study was to compare the levels of transcripts for VicRK and CovR of S. mutans isolated from FXS patients with the levels of transcripts for VicRK and CovR of standard strain ATCC, using a quantitative polymerase chain reaction (qPCR). METHODS The caries experience index was assessed by the International Caries Detection and Assessment System (ICDAS), Periodontal Condition Index (PCI) and Invasive Dental Treatment Need Index (INI). RESULTS The clinical index findings revealed a high rate of caries cavities and bleeding on probing of FXS patients. When VicRK and CovR transcript levels were compared with the reference strain, Fragile X patients were found to have significantly higher values. CONCLUSION The present study demonstrated that FXS patients have more adverse clinical conditions, with increased biofilm accumulation and virulence. When combined with behavioural abnormalities, these patients become even more vulnerable to dental caries.
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Affiliation(s)
- Cristhiane Olivia Ferreira do Amaral
- Division of Special Care, Faculdade São Leopoldo Mandic, Campinas, Brazil
- Department of Special Care Dentistry, Dental School, Universidade do Oeste Paulista - UNOESTE, Presidente Prudente, Brazil
| | | | - V C de Araújo
- Division of Oral Pathology, Faculdade São Leopoldo Mandic, Campinas, Brazil
| | - T Marega
- Division of Special Care, Faculdade São Leopoldo Mandic, Campinas, Brazil
| | - L N Teixeira
- Division of Oral Pathology, Faculdade São Leopoldo Mandic, Campinas, Brazil
| | - E F Martinez
- Division of Cell Biology, Faculdade São Leopoldo Mandic, Campinas, Brazil
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97
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Yang N, Song S, Yang X, Nawaz MAH, He D, Han W, Li Y, Yu C. Fabrication of photo-induced molecular superoxide radical generator for highly efficient therapy against bacterial wound infection. Colloids Surf B Biointerfaces 2024; 241:114018. [PMID: 38865868 DOI: 10.1016/j.colsurfb.2024.114018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/18/2024] [Accepted: 06/06/2024] [Indexed: 06/14/2024]
Abstract
The pressing need for highly efficient antibacterial strategies arises from the prevalence of microbial biofilm infections and the emergence of rapidly evolving antibiotic-resistant strains of pathogenic bacteria. Photodynamic therapy represents a highly efficient and compelling antibacterial approach, offering promising prospects for effective control of the development of bacterial resistance. However, the effectiveness of many photosensitizers is limited due to the reduced generation of reactive oxygen species (ROS) in hypoxic microenvironment, which commonly occur in pathological conditions such as inflammatory and bacteria-infected wounds. Herein, we designed and prepared two phenothiazine-derived photosensitizers (NB-1 and NB-2), which can effectively generate superoxide anion radicals (O2●-) through the type I process. Both photosensitizers demonstrate significant efficacy in vitro for the eradication of broad-spectrum bacteria. Moreover, NB-2 possesses distinct advantages including strong membrane binding and strong generation of O2●-, rendering it an exceptionally efficient antibacterial agent against mature biofilms. In addition, laser activated NB-2 could be applied to treat MRSA-infected wound in vivo, which offers new opportunities for potential practical applications.
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Affiliation(s)
- Na Yang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, PR China
| | - Shuang Song
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Xiaofei Yang
- Harbin Center for Disease Control and Prevention, Harbin 150030, PR China
| | - Muhammad Azhar Hayat Nawaz
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, PR China
| | - Di He
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Wenzhao Han
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Ying Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
| | - Cong Yu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, PR China.
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98
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Litman E, Young B, Spiel M. Novel Insights on Group B Streptococcus in Pregnancy. Clin Obstet Gynecol 2024; 67:633-643. [PMID: 38902963 DOI: 10.1097/grf.0000000000000883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Group B Streptococcus (GBS) is a frequent colonizer of the human genital and gastrointestinal tract. In pregnant or postpartum persons, colonization is often asymptomatic and can contribute to infectious morbidity in both the parturient and the newborn. The prevalence of invasive GBS disease has dramatically decreased over the past 3 decades. However, despite standardized clinical algorithms, GBS disease remains a public health concern. Our review summarizes the GBS bacteria pathophysiology, morbidity, management guidelines, and summarizes ongoing research. While novel testing and parturient vaccination are being explored, barriers exist, preventing guideline updates and widespread implementation.
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Affiliation(s)
- Ethan Litman
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center
- Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, Massachusetts
| | - Brett Young
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center
- Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, Massachusetts
| | - Melissa Spiel
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center
- Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, Massachusetts
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99
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Najari E, Zamani S, Sheikh Arabi M, Ardebili A. Antimicrobial photodynamic effect of the photosensitizer riboflavin, alone and in combination with colistin, against pandrug-resistant Pseudomonas aeruginosa clinical isolates. J Infect Chemother 2024; 30:892-898. [PMID: 38432556 DOI: 10.1016/j.jiac.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 02/05/2024] [Accepted: 03/01/2024] [Indexed: 03/05/2024]
Abstract
INTRODUCTION Development of multi-, extensively-, and pandrug-resistant (MDR, XDR, and PDR) strains of Pseudomonas aeruginosa remains a major problem in medical care. The present study evaluated the effect of antimicrobial photodynamic therapy (aPDT) as a monotherapy and in combination with colistin against P. aeruginosa isolates. METHODS Two P. aeruginosa isolates recovered from patients with respiratory tract infections were examined in this study. Minimum inhibitory concentration (MIC) of colistin was determined by the colistin broth disk elution (CBDE) and the reference broth microdilution (rBMD) methods. aPDT was performed using the photosensitizer (Ps) riboflavin at several concentrations and a light-emitting diode (LED) emitting blue light for different irradiation times with or without colistin at 1/2 × MIC concentration. RESULTS Both PA1 and PA2 isolates were identified as colistin-resistant P. aeruginosa with a MIC ≥4 μg/mL by the CBDE and MICs of 512 μg/mL and 256 μg/mL, respectively, by the rBMD. In aPDT, neither riboflavin nor LED light alone had antibacterial effects. The values of colony forming units per milliliter (CFU/mL) in both isolates were significantly reduced by LED + Ps treatments in a time-dependent manner (LED irradiation time) and dose-dependent manner (Ps concentration). In comparison with control, treatment with Ps (50 μM) + LED (120 s) and Ps (100 μM) + LED (120 s) resulted in 0.27 log10 CFU/mL and 0.43 log10 CFU/mL reductions in PA1, and 0.28 log10 CFU/mL and 0.34 log10 CFU/mL reductions in PA2, respectively, (P < 0.01). The best results were obtained after the combination of aPDT followed by colistin, which increased bacterial reduction, resulting in a 0.41-0.7 log10 CFU/mL reduction for PA1 and 0.35-0.83 log10 CFU/mL reduction for PA2 (P = 0.001). CONCLUSIONS This study suggests the potential implications of aPDT in combination with antibiotics, such as colistin for treatment of difficult-to-treat P. aeruginosa infections.
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Affiliation(s)
- Ehsan Najari
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran.
| | - Samin Zamani
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran.
| | - Mehdi Sheikh Arabi
- Medical Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
| | - Abdollah Ardebili
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran.
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100
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Snyder AB, Martin N, Wiedmann M. Microbial food spoilage: impact, causative agents and control strategies. Nat Rev Microbiol 2024; 22:528-542. [PMID: 38570695 DOI: 10.1038/s41579-024-01037-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2024] [Indexed: 04/05/2024]
Abstract
Microbial food spoilage is a major contributor to food waste and, hence, to the negative environmental sustainability impacts of food production and processing. Globally, it is estimated that 15-20% of food is wasted, with waste, by definition, occurring after primary production and harvesting (for example, in households and food service establishments). Although the causative agents of food spoilage are diverse, many microorganisms are major contributors across different types of foods. For example, the genus Pseudomonas causes spoilage in various raw and ready-to-eat foods. Aerobic sporeformers (for example, members of the genera Bacillus, Paenibacillus and Alicyclobacillus) cause spoilage across various foods and beverages, whereas anaerobic sporeformers (for example, Clostridiales) cause spoilage in a range of products that present low-oxygen environments. Fungi are also important spoilage microorganisms, including in products that are not susceptible to bacterial spoilage due to their low water activity or low pH. Strategies that can reduce spoilage include improved control of spoilage microorganisms in raw material and environmental sources as well as application of microbicidal or microbiostatic strategies (for example, to products and packaging). Emerging tools (for example, systems models and improved genomic tools) represent an opportunity for rational design of systems, processes and products that minimize microbial food spoilage.
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Affiliation(s)
| | - Nicole Martin
- Department of Food Science, Cornell University, Ithaca, NY, USA
| | - Martin Wiedmann
- Department of Food Science, Cornell University, Ithaca, NY, USA.
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