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Sharma S, Chaurasia S, Dinday S, Srivastava G, Singh A, Chanotiya CS, Ghosh S. High-level biosynthesis of enantiopure germacrene D in yeast. Appl Microbiol Biotechnol 2024; 108:50. [PMID: 38183482 PMCID: PMC10789846 DOI: 10.1007/s00253-023-12885-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/18/2023] [Accepted: 09/30/2023] [Indexed: 01/08/2024]
Abstract
Germacrene D, a sesquiterpenoid compound found mainly in plant essential oils at a low level as (+) and/or (-) enantiomeric forms, is an ingredient for the fragrance industry, but a process for the sustainable supply of enantiopure germacrene D is not yet established. Here, we demonstrate metabolic engineering in yeast (Saccharomyces cerevisiae) achieving biosynthesis of enantiopure germacrene D at a high titer. To boost farnesyl pyrophosphate (FPP) flux for high-level germacrene D biosynthesis, a background yeast chassis (CENses5C) was developed by genomic integration of the expression cassettes for eight ergosterol pathway enzymes that sequentially converted acetyl-CoA to FPP and by replacing squalene synthase promoter with a copper-repressible promoter, which restricted FPP flux to the competing pathway. Galactose-induced expression of codon-optimized plant germacrene D synthases led to 13-30 fold higher titers of (+) or (-)-germacrene D in CENses5C than the parent strain CEN.PK2.1C. Furthermore, genomic integration of germacrene D synthases in GAL80, LPP1 and rDNA loci generated CENses8(+D) and CENses8(-D) strains, which produced 41.36 µg/ml and 728.87 µg/ml of (+) and (-)-germacrene D, respectively, without galactose supplementation. Moreover, coupling of mitochondrial citrate pool to the cytosolic acetyl-CoA, by expressing a codon-optimized ATP-citrate lyase of oleaginous yeast, resulted in 137.71 µg/ml and 815.81 µg/ml of (+) or (-)-germacrene D in CENses8(+D)* and CENses8(-D)* strains, which were 67-120 fold higher titers than in CEN.PK2.1C. In fed-batch fermentation, CENses8(+D)* and CENses8(-D)* produced 290.28 µg/ml and 2519.46 µg/ml (+) and (-)-germacrene D, respectively, the highest titers in shake-flask fermentation achieved so far. KEY POINTS: • Engineered S. cerevisiae produced enantiopure (+) and (-)-germacrene D at high titers • Engineered strain produced up to 120-fold higher germacrene D than the parental strain • Highest titers of enantiopure (+) and (-)-germacrene D achieved so far in shake-flask.
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Affiliation(s)
- Shubha Sharma
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Seema Chaurasia
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
| | - Sandeep Dinday
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
- School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana 141004, India
| | - Gaurav Srivastava
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
| | - Anamika Singh
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
| | - Chandan Singh Chanotiya
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Phytochemistry Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India
| | - Sumit Ghosh
- Plant Biotechnology Division, Council of Scientific and Industrial Research-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Chen P, Wang Y, Xie J, Lei J, Zhou B. Methylated urolithin A, mitigates cognitive impairment by inhibiting NLRP3 inflammasome and ameliorating mitochondrial dysfunction in aging mice. Neuropharmacology 2024; 252:109950. [PMID: 38636727 DOI: 10.1016/j.neuropharm.2024.109950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 04/02/2024] [Accepted: 04/10/2024] [Indexed: 04/20/2024]
Abstract
Effective therapeutic interventions for elderly patients are lacking, despite advances in pharmacotherapy. Methylated urolithin A (mUro A), a modified ellagitannin (ET)-derived metabolite, exhibits anti-inflammatory, antioxidative, and anti-apoptotic effects. Current research has primarily investigated the neuroprotective effects of mUroA in aging mice and explored the underlying mechanisms. Our study used an in vivo aging model induced by d-galactose (D-gal) to show that mUro A notably improved learning and memory, prevented synaptic impairments by enhancing synaptic protein expression and increasing EPSCs, and reduced oxidative damage in aging mice. mUro A alleviated the activation of the NOD-like receptor thermal protein domain-associated protein 3 (NLRP3) inflammasome, leading to reduced glial cell activity and neuroinflammation in both accelerated aging and naturally senescent mouse models. Moreover, mUroA enhanced the activity of TCA cycle enzymes (PDH, CS, and OGDH), decreased 8-OHdG levels, and raised ATP and NAD+ levels within the mitochondria. At the molecular level, mUro A decreased phosphorylated p53 levels and increased the expression of peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α), thus enhancing mitochondrial function. In conclusion, mUro A alleviates cognitive impairment in aging mice by suppressing neuroinflammation through NLRP3 inflammasome inhibition and restoring mitochondrial function via the p53-PGC-1α pathway. This suggests its potential therapeutic agent for brain aging and aging-related diseases.
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Affiliation(s)
- Peng Chen
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, PR China.
| | - Yulai Wang
- Department of Pharmacy, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, Hubei, 435099, PR China
| | - Jing Xie
- Department of Pharmacy, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan, Hubei, 430060, PR China
| | - Jiexin Lei
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, PR China; Hubei Key Laboratory of Wudang Local Chinese Medicine Research, School of Pharmaceutical Sciences, Hubei University of Medicine, Shiyan, Hubei, China
| | - Benhong Zhou
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, PR China
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Liu J, Qu L, Wang F, Mei Z, Wu X, Wang B, Liu H, He L. A study on the anti-senescent effects of flavones derived from Prinsepia utilis Royle seed residue. J Ethnopharmacol 2024; 328:118021. [PMID: 38492793 DOI: 10.1016/j.jep.2024.118021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/26/2024] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Prinsepia utilis Royle, also known as the Anas fruit, is a unique perennial woody oil plant from Yunnan Province, China. In the ancient texts of Dongba sutras and Yunnan Southern Materia Medica, it has been documented that the local Naxi, Tibetan, and Mosuo communities extensively utilize the root and leaf fruits of green thorns for various purposes. These include treating mild-to-moderate specific dermatitis, moisturising the skin, providing protection against UV damage, aiding childbirth in pregnant women, safeguarding stomach health, reducing the risk of arteriosclerosis, and delaying aging. AIM OF THE STUDY In this study, leftover residues from oil extraction were efficiently reused, and flavonoids were identified during subsequent extraction and separation processes. The anti-senescent effects of flavonoids in P. utilis Royle have not been systematically studied. Therefore, the objective of this study was to explore the anti-senescent properties of the flavonoids obtained from P. utilis Royle. METHODS First, HPLC and other analytical techniques were used to identify the components of the P. utilis Royle flavonoid (PURF). Next, DPPH, hydroxyl radicals, superoxide anion O2-, collagenase, and elastase were initially detected using in vitro biochemical assays. To examine its antioxidant properties, a zebrafish model was used, and to confirm its anti-senescent effects, a d-galactose-induced mouse aging model was employed. The anti-senescent mechanism of PURF was examined using a natural senescence HFF model. Furthermore, the anti-senescent target was confirmed using a 3D full T-Skin™ model. RESULTS In vitro biochemical assays demonstrated that flavones exhibited potent antioxidant activity and anti-senescent potential by inhibiting DPPH, hydroxyl radicals, superoxide anion O2-, collagenase, and elastase. It significantly enhanced the antioxidant effect on zebrafish while suppressing ROS and inflammatory injury, up-regulating COL1A1, COL3A1, AMPK, and mTOR gene expression and down-regulating MMP-9, TGF-β, p21, and p16 gene expression suggesting its potential anti-senescent ability. Findings from the D-galactose-induced aging mouse model showed that PURF greatly increased SOD levels, while simultaneously decreasing HYP and MDA levels. In addition, when PURF was given to the HFF cell and 3D full T-Skin™ model, consistent trends were observed in gene and protein expression, with up-regulation of COL1A1, COL3A1, AMPK, and mTOR genes and down-regulation of TGF-β, MMP-1, MMP-9, p21, and p16 genes. Therefore, these preliminary findings indicate that flavones can modulate AMPK/mTOR/TGF-β signalling pathways to exert its influence. CONCLUSION The kernel residue of natural P. utilis Royle oil extracted from Yunnan province was previously considered agricultural waste, but we successfully extracted and isolated its flavonoid components. Our preliminary studies demonstrated its potential as an environmentally friendly anti-senescent raw material.
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Affiliation(s)
- Junxi Liu
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Liping Qu
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Characteristic Plant Extraction Laboratory, Yunnan Yunke Characteristic Plant Extraction Laboratory Co., Ltd., Kunming, 650106, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Feifei Wang
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Characteristic Plant Extraction Laboratory, Yunnan Yunke Characteristic Plant Extraction Laboratory Co., Ltd., Kunming, 650106, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Zaoju Mei
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Xinlang Wu
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Bo Wang
- Botanee Research Institute, Shanghai Jiyan Biomedical Development Co., Ltd., Shanghai, 201702, China; Yunnan Botanee Bio-Technology Group Co., Ltd., Kunming, 650106, China
| | - Haiyang Liu
- Yunnan Characteristic Plant Extraction Laboratory, Yunnan Yunke Characteristic Plant Extraction Laboratory Co., Ltd., Kunming, 650106, China
| | - Li He
- Yunnan Characteristic Plant Extraction Laboratory, Yunnan Yunke Characteristic Plant Extraction Laboratory Co., Ltd., Kunming, 650106, China.
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Wang X, Kang J, Li X, Wu P, Huang Y, Duan Y, Feng J, Wang J. Codonopsis pilosula water extract delays D- galactose-induced aging of the brain in mice by activating autophagy and regulating metabolism. J Ethnopharmacol 2024; 327:118016. [PMID: 38462027 DOI: 10.1016/j.jep.2024.118016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 02/27/2024] [Accepted: 03/04/2024] [Indexed: 03/12/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Codonopsis pilosula (C. pilosula), also called "Dangshen" in Chinese, is derived from the roots of Codonopsis pilosula (Franch.) Nannf. (C. pilosula), Codonopsis pilosula var. Modesta (Nannf.) L.D.Shen (C. pilosula var. modesta) or Codonopsis pilosula subsp. Tangshen (Oliv.) D.Y.Hong (C. pilosula subsp. tangshen), is a well-known traditional Chinese medicine. It has been regularly used for anti-aging, strengthening the spleen and tonifying the lungs, regulating blood sugar, lowering blood pressure, strengthening the body's immune system, etc. However, the mechanism, by which, C. pilosula exerts its therapeutic effects on brain aging remains unclear. AIM OF THE STUDY This study aimed to investigate the underlying mechanisms of the protective effects of C. pilosula water extract (CPWE) on the hippocampal tissue of D-galactose-induced aging mice. MATERIALS AND METHODS In this research, plant taxonomy has been confirmed in the "The Plant List" database (www.theplantlist.org). First, an aging mouse model was established through the intraperitoneal injections of D-galactose solution, and low-, medium-, and high-dose CPWE were administered to mice by gavage for 42 days. Then, the learning and memory abilities of the mice were examined using the Morris water maze tests and step-down test. Hematoxylin and eosin staining was performed to visualize histopathological damage in the hippocampus. A transmission electron microscope was used to observe the ultrastructure of hippocampal neurons. Immunohistochemical staining was performed to examine the expression of glial fibrillary acidic protein (GFAP), the marker protein of astrocyte activation, and autophagy-related proteins, including microtubule-associated protein light chain 3 (LC3) and sequestosome 1 (SQSTM1)/p62, in the hippocampal tissues of mice. Moreover, targeted metabolomic analysis was performed to assess the changes in polar metabolites and short-chain fatty acids in the hippocampus. RESULTS First, CPWE alleviated cognitive impairment and ameliorated hippocampal tissue damage in aging mice. Furthermore, CPWE markedly alleviated mitochondrial damage, restored the number of autophagosomes, and activated autophagy in the hippocampal tissue of aging mice by increasing the expression of LC3 protein and reducing the expression of p62 protein. Meanwhile, the expression levels of the brain injury marker protein GFAP decreased. Moreover, quantitative targeted metabolomic analysis revealed that CPWE intervention reversed the abnormal levels of L-asparagine, L-glutamic acid, L-glutamine, serotonin hydrochloride, succinic acid, and acetic acid in the hippocampal tissue of aging mice. CPWE also significantly regulated pathways associated with D-glutamine and D-glutamate metabolism, nitrogen metabolism, arginine biosynthesis, alanine, aspartate, and glutamate metabolisms, and aminoacyl-tRNA biosynthesis. CONCLUSIONS CPWE could improve cognitive and pathological conditions induced by D-galactose in aging mice by activating autophagy and regulating metabolism, thereby slowing down brain aging.
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Affiliation(s)
- Xuewen Wang
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Jiachao Kang
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Xuechan Li
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Pingmin Wu
- Teaching Experiment Training Center, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Yong Huang
- School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Yongqiang Duan
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, 750004, China
| | - Juan Feng
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, 518118, China.
| | - Jing Wang
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, 730000, China.
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Ruiz-Valdepeñas Montiel V, Gamella M, Blázquez-García M, Serafín V, Molina E, Pingarrón JM, Benedé S, Campuzano S. Electrochemical bioplatform to manage alpha-gal syndrome by tracking the carbohydrate allergen in meat. Talanta 2024; 273:125851. [PMID: 38447339 DOI: 10.1016/j.talanta.2024.125851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/05/2024] [Accepted: 02/28/2024] [Indexed: 03/08/2024]
Abstract
This work presents the first bioplatform described to date for the determination of galactose-α-1,3-galactose (α-Gal), a non-primate mammalian oligosaccharide responsible for almost all cases of red meat allergy. The bioplatform is based on the implementation of an indirect competitive immunoassay and enzymatic labeling with the enzyme horseradish peroxidase (HRP) built on the surface of magnetic microparticles (MBs) and amperometric transduction on screen-printed carbon electrodes (SPCEs) using the H2O2/hydroquinone (HQ) system. The target α-Gal competed with biotinylated α-Gal immobilized on the surface of neutravidin-modified MBs for the limited immunorecognition sites of a detection antibody enzymatically labeled with an HRP-conjugated secondary antibody. The resulting magnetic immunoconjugates were trapped on the surface of the SPCE working electrode and amperometric transduction was performed, providing a cathodic current variation inversely proportional to the concentration of α-Gal in the analyzed sample. The developed biotool was optimized, characterized and applied with satisfactory results to the determination of the target allergen in different samples of raw and processed meats.
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Affiliation(s)
| | - María Gamella
- Dept. Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Marina Blázquez-García
- Dept. Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Verónica Serafín
- Dept. Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Elena Molina
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, Nicolás Cabrera, 9, 28049, Madrid, Spain
| | - José M Pingarrón
- Dept. Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Sara Benedé
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, Nicolás Cabrera, 9, 28049, Madrid, Spain; Dept. Immunology, Ophthalmology and ORL, Faculty of Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Susana Campuzano
- Dept. Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040, Madrid, Spain.
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Shen X, Zhang M, Cai H, Leslie WD, Lix LM, Jiang D, Feng L, Cheng H, Shi X, Gao Y, Yang S. Associations of global biomarkers of oxidative stress with osteoporosis, bone microstructure and bone turnover: Evidence from human and animal studies. Bone 2024; 183:117077. [PMID: 38521234 DOI: 10.1016/j.bone.2024.117077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/31/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
PURPOSE Human evidence on the association between oxidative stress and osteoporosis is inconsistent. Fluorescent Oxidation Products (FlOPs) are global biomarkers of oxidative stress. We examined the associations of FlOPs (excitation/emission wavelengths 320/420 nm for FlOP_320, 360/420 nm for FlOP_360, and 400/475 nm for FlOP_400) with osteoporosis, bone microstructure, and bone turnover markers in humans and rats. METHODS In humans, we conducted a 1:2 age, sex, hospital, and specimen-matched case-control study to test the association between FlOPs and osteoporosis diagnosed from dual-energy X-ray absorptiometry. In eight-week-old male Wistar rats, we administrated D-galactose and 0.9 % saline for 90 days in treatment and control groups (n = 8/group); micro-CT was used to determine bone microstructure. RESULTS In humans, higher levels of FlOP_320 (OR for per 1 SD increase = 1.49, 95 % CI: 1.01-2.20) and FlOP_360 (OR for per 1 SD increase = 1.59, 95 % CI: 1.07-2.37) were associated with increased odds of osteoporosis. FlOP_400 were not associated with osteoporosis. D-galactose treated rats, as compared with control rats, showed higher levels of FlOP_320 and MDA, and lower P1NP levels during 90 days of experiment (all P < 0.05). The D-galactose group had lower trabecular bone volume fraction (0.07 ± 0.03 vs. 0.13 ± 0.05; P = 0.008) and volumetric BMD (225.4 ± 13.8 vs. 279.1 ± 33.2 mg HA/cm3; P = 0.001) than the control group. CONCLUSION In conclusion, higher FlOP_320 levels were associated with increased odds of osteoporosis, impaired bone microstructure and decreased bone formation.
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Affiliation(s)
- Xue Shen
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China; Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Mengmeng Zhang
- FAW General Hospital of Jilin Province, Changchun, Jilin, China
| | - Hanqing Cai
- Department of Endocrinology, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - William D Leslie
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lisa M Lix
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Depeng Jiang
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lijie Feng
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Haitao Cheng
- FAW General Hospital of Jilin Province, Changchun, Jilin, China
| | - Xianbao Shi
- Department of Pharmacy, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Yuzhong Gao
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Shuman Yang
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China; Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
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Yang J, Meng X, Rao Y, Wang X, Meng S, Teng C, Sun T, Zong C. Harnessing the potential of de-sulfated heparin for targeted drug delivery: A three-component approach exemplified by conjugation with galactose and paclitaxel. Carbohydr Polym 2024; 333:121986. [PMID: 38494237 DOI: 10.1016/j.carbpol.2024.121986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/16/2024] [Accepted: 02/24/2024] [Indexed: 03/19/2024]
Abstract
Heparin, an anticoagulant with a century-long history of use, has been investigated over the past decade as a potential drug delivery vehicle. Despite its safety and efficacy, its interactions with many proteins through specific sulfate patterns can complicate drug delivery by mediating diverse biological functions. Here, we present the synthesis of a three-component drug delivery system comprising de-sulfated heparin as the carrier, galactose as the targeting moiety, and paclitaxel as the therapeutic drug. Removal of sulfates eliminated most of its anticoagulant effects in all intermediates. Through coupling with galactose and paclitaxel, the system improved the solubility of the drug and achieved selective targeting and efficient drug delivery to HepG2 cells, a liver carcinoma cell line with high galactose receptor expression. While the three-component system exhibited a slightly higher IC50 value than native paclitaxel, demonstrating its efficacy as a drug carrier, the IC50 value for the normal human liver cell line QSG7701 was significantly higher, indicating its selectivity and safety. Our study introduces a novel approach utilizing desulfated heparin as a carrier, warranting further investigation to unlock its potential in targeted drug delivery strategies.
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Affiliation(s)
- Jing Yang
- School of Pharmaceutical Sciences, Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou 570228, China
| | - Xiongyan Meng
- School of Pharmaceutical Sciences, Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou 570228, China
| | - Yong Rao
- School of Pharmaceutical Sciences, Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou 570228, China
| | - Xin Wang
- School of Pharmaceutical Sciences, Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou 570228, China
| | - Shuai Meng
- School of Pharmaceutical Sciences, Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou 570228, China
| | - Changcai Teng
- School of Pharmaceutical Sciences, Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou 570228, China
| | - Tiantian Sun
- School of Pharmaceutical Sciences, Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou 570228, China.
| | - Chengli Zong
- School of Pharmaceutical Sciences, Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou 570228, China.
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Tang S, Liu P, Zhu S, Kou T, Li Y, Jiang L, Qi B. Self-assembly and aggregation behavior of temperature-controlled modified glycinin and d- galactose colloidal particles. Food Chem 2024; 441:138323. [PMID: 38199105 DOI: 10.1016/j.foodchem.2023.138323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
The molecular structure and morphologies of complex colloidal particles with modified glycine (S-11S) and d-galactose were studied by multispectral, microscopic imaging and chromatographic techniques at different temperatures, and the self-assembly and aggregation mechanisms were determined. Overall, high-temperature-treated S-11S and d-galactose associate at cysteine and phenylalanine sites and self-assemble into colloidal particles of greater stability than glycinin and S-11S via ionic and disulfide bonds. The structure and subunit content of composite colloidal particles were changed. Assessing the sub-microstructure reveals that temperature can regulate the directional aggregation of complex colloidal particles. The elasticity of the complex colloidal particles is maximum enhanced at 95 ℃ as confirmed by the rheological. Thus, the heat-treated aggregation of the soy protein and its complex was evaluated to provide a new theoretical basis for the application of soy protein in gels and other areas and contribute to the design of new soy protein products.
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Affiliation(s)
- Shiqi Tang
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Panling Liu
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Sha Zhu
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Tianzhan Kou
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Yang Li
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Lianzhou Jiang
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China.
| | - Baokun Qi
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China.
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Tian R, Yu L, Tian F, Zhao J, Chen W, Zhai Q. Effect of inulin, galacto-oligosaccharides, and polyphenols on the gut microbiota, with a focus on Akkermansia muciniphila. Food Funct 2024; 15:4763-4772. [PMID: 38590256 DOI: 10.1039/d4fo00428k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Inulins, galacto-oligosaccharides (GOS) and polyphenols are considered to stimulate the growth of Akkermansia muciniphila (A. muciniphila) in the gut. We performed a meta-analysis of six microbiome studies (821 stool samples from 451 participants) to assess the effects of inulin, GOS, and polyphenols on the abundance of A. muciniphila in the gut. The intervention of GOS increased the relative abundance of A. muciniphila in healthy participants. Additionally, metabolic pathways associated with carbohydrate metabolism and short-chain fatty acid release were enriched following the GOS intervention. Furthermore, after the GOS intervention, the coexisting microbial communities of A. muciniphila, such as Eubacterium hallii and Bacteroides, exhibited an enhanced correlation with A. muciniphila. In conclusion, our findings suggest that GOS may promote the growth of A. muciniphila in the gut by modulating the gut microbiota composition.
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Affiliation(s)
- Ruocen Tian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
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Wang J, Liao E, Ren Z, Wang Q, Xu Z, Wu S, Yu C, Yin Y. Extraction and In Vitro Skincare Effect Assessment of Polysaccharides Extract from the Roots of Abelmoschus manihot (L.). Molecules 2024; 29:2109. [PMID: 38731598 PMCID: PMC11085328 DOI: 10.3390/molecules29092109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/28/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
Obtaining high-added value compounds from agricultural waste receives increasing attention, as it can both improve resource utilization efficiency and reduce waste generation. In this study, polysaccharides are extracted from the discarded roots of Abelmoschus manihot (L.) by the high-efficiency ultrasound-assisted extraction (UAE). The optimized condition was determined as solid-liquid ratio SL ratio = 1:20, temperature T = 30 °C and time T = 40 min, achieving an extraction yield of 13.41%. Composition analysis revealed that glucose (Glc, 44.65%), rhamnose (Rha, 26.30%), galacturonic acid (GalA, 12.50%) and galactose (Gal, 9.86%) are the major monosaccharides of the extract. The extract showed a low degree of esterification (DE) value of 40.95%, and its Fourier-transform infrared (FT-IR) spectrum exhibited several characteristic peaks of polysaccharides. Inspired by the wide cosmetic applications of polysaccharides, the skincare effect of the extract was evaluated via the moisture retention, total phenolic content (TPC) quantification, 2,2-Diphenyl-1-picrylhydrazyl (DPPH)-free radical scavenging activity, anti-hyaluronidase and anti-elastase activity experiments. The extract solutions demonstrated a 48 h moisture retention rate of 10.75%, which is superior to that of commercially available moisturizer hyaluronic acid (HA). Moreover, both the TPC value of 16.16 mg GAE/g (dw) and DPPH-free radical scavenging activity of 89.20% at the concentration of 2 mg/mL indicated the strong anti-oxidant properties of the extract. Furthermore, the anti-hyaluronidase activity and moderate anti-elastase activity were determined as 72.16% and 42.02%, respectively. In general, in vitro skincare effect experiments suggest moisturizing, anti-oxidant, anti-radical and anti-aging activities of the A. manihot root extract, indicating its potential applications in the cosmetic industry.
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Affiliation(s)
- Junjie Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (J.W.); (E.L.); (Z.R.); (Z.X.); (C.Y.)
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China;
| | - Enhui Liao
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (J.W.); (E.L.); (Z.R.); (Z.X.); (C.Y.)
| | - Zixuan Ren
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (J.W.); (E.L.); (Z.R.); (Z.X.); (C.Y.)
| | - Qiong Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (J.W.); (E.L.); (Z.R.); (Z.X.); (C.Y.)
| | - Zenglai Xu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (J.W.); (E.L.); (Z.R.); (Z.X.); (C.Y.)
| | - Shufang Wu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China;
| | - Chaoguang Yu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (J.W.); (E.L.); (Z.R.); (Z.X.); (C.Y.)
| | - Yunlong Yin
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (J.W.); (E.L.); (Z.R.); (Z.X.); (C.Y.)
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Futamata S, Onishi Y, Adachi S, Khuwijitjaru P, Watanabe Y, Tani F, Kobayashi T. Efficient synthesis of rare sugars from galactose in hot compressed water using eggshells as an environmentally friendly catalyst. Bioresour Technol 2024; 399:130642. [PMID: 38561154 DOI: 10.1016/j.biortech.2024.130642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
Aqueous galactose solutions containing eggshell was heated at 120 °C to produce calcium supplements containing rare sugars. Galactose was isomerized to rare sugars with improving rare sugar yields compared to those without eggshell. Organic acids were also formed as byproducts during the reaction. These acids were neutralized by dissolving eggshells with increasing the calcium ion concentration in the solution. When eggshell components (calcium carbonate, magnesium carbonate, or calcium phosphate) were used for the treatment, rare sugars were also formed. Especially, addition of magnesium carbonate improved rare sugar yield, but byproduct formation became more pronounced. Eggshells used in the treatment were used for repeated treatments. When eggshells were used three times, rare sugar yield changed only slightly but the selectivity of rare sugars improved significantly. By these processes, we obtained an aqueous solution of rare sugars containing calcium ion at 295 mg/L, which has potential as ingredients for dietary supplements.
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Affiliation(s)
- Shin Futamata
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Yuichiro Onishi
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Shuji Adachi
- Department of Agriculture and Food Technology, Faculty of Bioenvironmental Sciences, Kyoto University of Advanced Science, Kameoka, Kyoto 621-8555, Japan
| | - Pramote Khuwijitjaru
- Department of Food Technology, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Yoshiyuki Watanabe
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Osaka Metropolitan University, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Fumito Tani
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takashi Kobayashi
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
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Zhou F, Zhang Q, Zheng X, Shi F, Ma K, Ji F, Meng N, Li R, Lv J, Li Q. Antiaging Effects of Human Fecal Transplants with Different Combinations of Bifidobacterium bifidum LTBB21J1 and Lactobacillus casei LTL1361 in d- Galactose-Induced Mice. J Agric Food Chem 2024; 72:9818-9827. [PMID: 38647087 DOI: 10.1021/acs.jafc.3c09815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
The feces of healthy middle-aged and old people were first transplanted into d-galactose-induced aging mice to construct humanized aging mice with gut microbiota (FMTC) to confirm the antiaging effect of probiotics produced from centenarians. The mouse model was then treated with centenarian-derived Bifidobacterium bifidum (FMTL), Lactobacillus casei (FMTB), and their mixtures (FMTM), and young mice were used as the control. Compared with the FMTC group, the results demonstrated that the probiotics and their combinations alleviated neuronal damage, increased antioxidant capacity, decreased inflammation, and enhanced cognitive and memory functions in aging mice. In the gut microbiota, the relative abundance of Lactobacillus, Ligilactobacillus, and Akkermansia increased and that of Desulfovibrio and Colidextribacter decreased in the FMTM group compared with that in the FMTC group. The three probiotic groups displayed significant changes in 15 metabolites compared with the FMTC group, with 4 metabolites showing increased expression and 11 metabolites showing decreased expression. The groups were graded as Control > FMTM > FMTB > FMTL > FMTC using a newly developed comprehensive quantitative scoring system that thoroughly analyzed the various indicators of this study. The beneficial antiaging effects of probiotics derived from centenarians were quantitatively described using a novel perspective in this study; it is confirmed that both probiotics and their combinations exert antiaging effects, with the probiotic complex group exhibiting a larger effect.
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Affiliation(s)
- Fan Zhou
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Qinren Zhang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Xiaohua Zheng
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Fengcui Shi
- School of Chemical and Biological Engineering, Qilu Institute of Technology, Shandong 250200, China
| | - Kai Ma
- Jiangsu New-Bio Biotechnology Co.,Ltd, Jiangsu 214400, China
| | - Feng Ji
- Jiangsu New-Bio Biotechnology Co.,Ltd, Jiangsu 214400, China
| | - Ning Meng
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Ruiding Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Jingwen Lv
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Quanyang Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
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Yin L, Niu Y, Zheng X, Chu J, Ma T. d- galactose causes embryonic development arrest and placental development disorders in mice by increasing ROS and inhibiting SIRT1/FOXO3a axis. Placenta 2024; 150:52-61. [PMID: 38593636 DOI: 10.1016/j.placenta.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/17/2024] [Accepted: 04/05/2024] [Indexed: 04/11/2024]
Abstract
INTRODUCTION Does an elevation in d-Galactose (D-Gal) levels within the body contribute to abnormal embryonic development and placental dysfunction during pregnancy? METHODS Mouse embryos were cultivated to the blastocyst stage under varying concentrations of D-Gal. The blastocyst formation rate was measured, and the levels of reactive oxygen species (ROS), sirtuin 1 (SIRT1), and forkhead box O3a (FOXO3a) in blastocysts were assessed. Mice were intraperitoneally injected with either saline or D-Gal with or without SRT1720. On the 14th day of pregnancy, the fetal absorption rate and placental weight were recorded. Placental levels of superoxide dismutase (SOD) and malondialdehyde (MDA) were determined. The expression of senescence-related factors, such as senescence-associated β-galactosidase (SA-β-gal) in the placenta was examined, and the expression of placental SIRT1, FOXO3a and p21 was evaluated by immunohistochemistry and Western blotting. RESULTS D-Gal adversely affects early embryonic development in vitro, resulting in a decreased blastocyst formation rate. Furthermore, D-Gal downregulates SIRT1 and FOXO3a while increasing ROS levels in blastocysts. Concurrently, D-Gal induces placental dysfunction, characterized by an elevated fetal absorption rate, reduced placental weight, diminished SOD activity, and increased MDA content. The senescence-related factor SA-β-gal was detected in the placenta, along with altered expression of placental SIRT1, FOXO3a, and p21. The SIRT1 agonist SRT1720 mitigated this damage by increasing SIRT1 and FOXO3a expression. DISCUSSION The inhibition of early embryonic development and placental dysfunction induced by D-Gal may be attributed to the dysregulation of SIRT1. Activating SIRT1 emerges as a potentially effective strategy for alleviating the adverse effects of D-Gal exposure.
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Affiliation(s)
- Lanlan Yin
- Reproductive Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yanru Niu
- Laboratory of Bone Science, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Xiudan Zheng
- Reproductive Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jiaqi Chu
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
| | - Tianzhong Ma
- Reproductive Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
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Nie H, Wang X, Luo Y, Kong F, Mu G, Wu X. Mechanism Explanation on Improved Cognitive Ability of D-Gal Inducing Aged Mice Model by Lactiplantibacillus plantarum MWFLp-182 via the Microbiota-Gut-Brain Axis. J Agric Food Chem 2024; 72:9795-9806. [PMID: 38608178 DOI: 10.1021/acs.jafc.3c09675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Gut microbiota can influence cognitive ability via the gut-brain axis. Lactiplantibacillus plantarum MWFLp-182 (L. plantarum MWFLp-182) was obtained from feces of long-living individuals and could exert marked antioxidant ability. Interestingly, this strain reduced the D-galactose-induced impaired cognitive ability in BALB/c mice. To comprehensively elucidate the underlying mechanism, we evaluated the colonization, antioxidant, and anti-inflammatory activities of L. plantarum MWFLp-182, along with the expression of potential genes associated with cognitive ability influenced and gut microbiota. L. plantarum MWFLp-182 enhanced the expression of anti-inflammatory cytokines, reduced the expression of proinflammatory cytokines, and increased tight junction protein expression in the colon. Moreover, L. plantarum MWFLp-182 could modify the gut microbiota. Notably, treatment with L. plantarum MWFLp-182 upregulated the expression of postsynaptic density protein-95, nuclear factor erythroid 2-related factor, nerve growth factor, superoxide dismutase, and brain-derived neurotrophic factor/neuronal nuclei, while downregulating the expression of bcl-2-associated X and malondialdehyde in the hippocampus and upregulating short-chain fatty acids against D-galactose-induced mouse brain deficits. Accordingly, L. plantarum MWFLp-182 could improve cognitive ability in a D-galactose-inducing mouse model.
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Affiliation(s)
- Hui Nie
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- Dalian Probiotic Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- Guangxi Key Laboratory of Health Care Food Science and Technology, Hezhou University, Hezhou, Guangxi 542899, People's Republic of China
| | - Xinxin Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- Dalian Probiotic Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Yanghe Luo
- Guangxi Key Laboratory of Health Care Food Science and Technology, Hezhou University, Hezhou, Guangxi 542899, People's Republic of China
| | - Fanhua Kong
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- Dalian Probiotic Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- Dalian Probiotic Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Xiaomeng Wu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, People's Republic of China
- Dalian Probiotic Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, People's Republic of China
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Khumsri W, Payuhakrit W, Kongkaew A, Chattipakorn N, Chattipakorn S, Yasom S, Mutirangura A. Box A of HMGB1 Maintains the DNA Gap and Prevents DDR-induced Kidney Injury in D- galactose Induction Rats. In Vivo 2024; 38:1170-1181. [PMID: 38688613 PMCID: PMC11059889 DOI: 10.21873/invivo.13552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND/AIM Disability and mortality rates for renal failure are still increasing. DNA damage and oxidative stress intoxication from body metabolism, high blood glucose, or the environment cause significant kidney damage. Recently, we reported that Box A of HMGB1 (Box A) acts as molecular scissors, producing DNA gaps that prevent DNA damage in kidney cell lines and ultimately reverse aging phenotypes in aging rat models. The present study aimed to demonstrate the potency of Box A in preventing D-galactose (D-gal)-induced kidney injury. MATERIALS AND METHODS A Box A expression plasmid was constructed and administered to a rat model. D-gal was injected subcutaneously for eight weeks. Serum was collected to study renal function, and white blood cells were collected for DNA gap measurement. Kidney tissue was also collected for γ-H2AX and NF-κB immunostaining; Senescence-associated (SA)-beta-gal staining; and analysis of the mRNA expression of p16INK4A, TNF-α, and IL-6. Moreover, histopathology analysis was performed using hematoxylin & eosin and Masson trichome staining. RESULTS Pretreatment with Box A administration prevented the reduction of DNA gaps and the consequences of the DNA damage response, which include elevated serum creatinine; high serum BUN; an increased positive SA-beta-gal staining area; overexpression of p16INK4A, NF-κB and senescence-associated secretory phenotype molecules, including IL-6, TNF-α; and histological alterations, including tubular dilation and collagen accumulation. CONCLUSION Box A effectively prevents DNA gap reduction and all D-gal-induced kidney pathological changes at the molecular, histological, and physiological levels. Therefore, Box A administration is a promising novel therapeutic strategy to prevent DNA-damaging agent-induced kidney failure.
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Affiliation(s)
- Wilunplus Khumsri
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Interdisciplinary Program of Biomedical Sciences, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Witchuda Payuhakrit
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand;
- Pathobiology Information and Learning Center, Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Aphisek Kongkaew
- Research Administration Section, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Siriporn Chattipakorn
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Sakawdaurn Yasom
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand;
| | - Apiwat Mutirangura
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Bourgeais M, Fouladkar F, Weber M, Boeri-Erba E, Wild R. Chemo-enzymatic synthesis of tetrasaccharide linker peptides to study the divergent step in glycosaminoglycan biosynthesis. Glycobiology 2024; 34:cwae016. [PMID: 38401165 PMCID: PMC11031135 DOI: 10.1093/glycob/cwae016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 01/29/2024] [Accepted: 02/22/2024] [Indexed: 02/26/2024] Open
Abstract
Glycosaminoglycans are extended linear polysaccharides present on cell surfaces and within the extracellular matrix that play crucial roles in various biological processes. Two prominent glycosaminoglycans, heparan sulfate and chondroitin sulfate, are covalently linked to proteoglycan core proteins through a common tetrasaccharide linker comprising glucuronic acid, galactose, galactose, and xylose moities. This tetrasaccharide linker is meticulously assembled step by step by four Golgi-localized glycosyltransferases. The addition of the fifth sugar moiety, either N-acetylglucosamine or N-acetylgalactosamine, initiates further chain elongation, resulting in the formation of heparan sulfate or chondroitin sulfate, respectively. Despite the fundamental significance of this step in glycosaminoglycan biosynthesis, its regulatory mechanisms have remained elusive. In this study, we detail the expression and purification of the four linker-synthesizing glycosyltransferases and their utilization in the production of fluorescent peptides carrying the native tetrasaccharide linker. We generated five tetrasaccharide peptides, mimicking the core proteins of either heparan sulfate or chondroitin sulfate proteoglycans. These peptides were readily accepted as substrates by the EXTL3 enzyme, which adds an N-acetylglucosamine moiety, thereby initiating heparan sulfate biosynthesis. Importantly, EXTL3 showed a preference towards peptides mimicking the core proteins of heparan sulfate proteoglycans over the ones from chondroitin sulfate proteoglycans. This suggests that EXTL3 could play a role in the decision-making step during glycosaminoglycan biosynthesis. The innovative strategy for chemo-enzymatic synthesis of fluorescent-labeled linker-peptides promises to be instrumental in advancing future investigations into the initial steps and the divergent step of glycosaminoglycan biosynthesis.
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Affiliation(s)
- Marie Bourgeais
- Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 71, Avenue des Martyrs, 38044 Grenoble, France
| | - Farah Fouladkar
- Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 71, Avenue des Martyrs, 38044 Grenoble, France
| | - Margot Weber
- Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 71, Avenue des Martyrs, 38044 Grenoble, France
| | | | - Rebekka Wild
- Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 71, Avenue des Martyrs, 38044 Grenoble, France
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Yang M, Zhang X, Qiao O, Zhang J, Li X, Ma X, Zhou S, Gao W. Effect of Cerebralcare Granule® combined with memantine on Alzheimer's disease. J Ethnopharmacol 2024; 323:117609. [PMID: 38142875 DOI: 10.1016/j.jep.2023.117609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/04/2023] [Accepted: 12/14/2023] [Indexed: 12/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In elderly people, Alzheimer's disease (AD) is the most common form of dementia. It has been shown that traditional Chinese medicine (TCM) based on phytomedicines enhances the therapeutic effects of modern medicine when taken in conjunction with them. Modern medicine N-methyl-D-aspartate receptor (NMDA) antagonist memantine (Mm) are mainly used in the clinical treatment of AD. TCM Cerebralcare Granule® (CG) has long been an effective treatment for headaches, dizziness, and other symptoms. In this study, we employ a blend of CG and Mm to address Alzheimer's disease-like symptoms and explore their impacts and underlying mechanisms. AIM OF THE STUDY The objective of our study was to observe the effects of CG combined with Memantine (Mm) on learning and memory impairment of AD mice induced by D-galactose and to explore the mechanism at work. MATERIALS AND METHODS CG and Mm were combined to target multiple pathological processes involved in AD. For a thorough analysis, we performed various experiments such as behavioral detection, pathological detection, proteomic detection, and other experimental methods of detection. RESULTS It was found that the combination of CG and Mm was significantly effective for improving learning and memory in AD mice as well as brain pathology. The serum and hippocampal tissue of AD mice were significantly enhanced with catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) activities and malondialdehyde (MDA) levels were decreased with this treatment. In AD mice, a combination of Mm and CG (CG + Mm) significantly increased the levels of the anti-inflammatory factors IL-4 and IL-10, decreased the levels of pro-inflammatory factors (IL-6, IL-1β) and tumor necrosis factor-alpha (TNF-α), improved synaptic plasticity by restoring synaptophysin (SYP) and postsynaptic density protein-95 (PSD-95) expression in the hippocampus, enhanced Aβ phagocytosis of microglia in AD mice, and increased mitochondrial respiratory chain enzyme complexes I, II, III, and IV, lead to an increase in the number of functionally active NMDA receptors in the hippocampus. Proteomic analysis GO analysis showed that the positive regulation gene H3BIV5 of G protein coupled receptor signal pathway and synaptic transmission was up-regulated, while the transsynaptic signal of postsynaptic membrane potential and regulation-related gene Q5NCT9 were down-regulated. Most proteins showed significant enriched signal transduction pathway profiles after CG + Mm treatment, based on the KEGG pathway database. CONCLUSION The data supported the idea that CG and Mm could be more effective in treating AD mice induced by D-galactose than Mm alone. We provided a basis for the clinical use of CG with Mm.
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Affiliation(s)
- Mingjuan Yang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Xinyu Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Ou Qiao
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jun Zhang
- National Key Laboratory of Chinese Medicine Modernization, Tasly Academy, Tasly Pharmaceutical Group Co., Ltd., Tianjin 300410, China
| | - Xiaoqing Li
- National Key Laboratory of Chinese Medicine Modernization, Tasly Academy, Tasly Pharmaceutical Group Co., Ltd., Tianjin 300410, China
| | - Xiaohui Ma
- National Key Laboratory of Chinese Medicine Modernization, Tasly Academy, Tasly Pharmaceutical Group Co., Ltd., Tianjin 300410, China
| | - Shuiping Zhou
- National Key Laboratory of Chinese Medicine Modernization, Tasly Academy, Tasly Pharmaceutical Group Co., Ltd., Tianjin 300410, China.
| | - Wenyuan Gao
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
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18
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Shen L, Fan L, Luo H, Li W, Cao S, Yu S. Cow placenta extract ameliorates d- galactose-induced liver damage by regulating BAX/CASP3 and p53/p21/p16 pathways. J Ethnopharmacol 2024; 323:117685. [PMID: 38171467 DOI: 10.1016/j.jep.2023.117685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/25/2023] [Accepted: 12/27/2023] [Indexed: 01/05/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Placenta is a kind of traditional Chinese medicine, known as "Ziheche", which has the function of tonifying qi and blood, nourishing liver and kidney. Placenta extract (PE) has been used for delaying organismal aging and treating various liver diseases. Cow placenta is a rich natural resource with large mass. Its composition is similar to that of human placenta, but it has not been effectively utilized. However, little is known about the effect of CPE on the liver of aging mice. AIM OF THE STUDY The aim of this study is to explore the protective effect and mechanism of CPE on the liver of d-galactose (D-gal) induced aging mice. MATERIALS AND METHODS Statistical methods were used to calculate mouse body weight and liver index. Hematoxylin-eosin (H&E) and transmission electron microscopy (TEM) were used to detect the morphological structure of the liver. Automatic biochemical analyzer was used to measure serum biochemical indicators. Three special staining methods were used to observe hepatocytes apoptosis, senescence and proliferation respectively. Relative kits were used to detect oxidative, inflammatory, and aging markers in the liver. Finally, real-time quantitative polymerase chain reaction and western-blot were used to detect aging related signaling pathways. RESULTS CPE significantly improved the morphological damage and dysfunction of liver, restored the activities of liver enzymes in serum, and alleviated liver oxidative stress and inflammatory response in D-gal induced aging mice. Furthermore, CPE inhibited hepatocyte apoptosis and senescence, and promoted hepatocyte proliferation by regulating BAX/CASP3 and p53/p21/p16 signaling pathways, ultimately reduced the effects of aging on the liver. CONCLUSION CPE effectively ameliorated the impact of aging on the liver by inhibiting free radical production or scavenging excessive free radicals, and its mechanism is associated to the regulation of apoptosis and proliferation-related factors.
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Affiliation(s)
- Liuhong Shen
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Lei Fan
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Hao Luo
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Weiyao Li
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Suizhong Cao
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shumin Yu
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
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19
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Wu Y, Bosman GP, Chapla D, Huang C, Moremen KW, de Vries RP, Boons GJ. A Biomimetic Synthetic Strategy Can Provide Keratan Sulfate I and II Oligosaccharides with Diverse Fucosylation and Sulfation Patterns. J Am Chem Soc 2024; 146:9230-9240. [PMID: 38494637 PMCID: PMC10996015 DOI: 10.1021/jacs.4c00363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
Keratan sulfate (KS) is a proteoglycan that is widely expressed in the extracellular matrix of various tissue types, where it performs multiple biological functions. KS is the least understood proteoglycan, which in part is due to a lack of panels of well-defined KS oligosaccharides that are needed for structure-binding studies, as analytical standards, to examine substrate specificities of keratinases, and for drug development. Here, we report a biomimetic approach that makes it possible to install, in a regioselective manner, sulfates and fucosides on oligo-N-acetyllactosamine (LacNAc) chains to provide any structural element of KS by using specific enzyme modules. It is based on the observation that α1,3-fucosides, α2,6-sialosides and C-6 sulfation of galactose (Gal6S) are mutually exclusive and cannot occur on the same LacNAc moiety. As a result, the pattern of sulfation on galactosides can be controlled by installing α1,3-fucosides or α2,6-sialosides to temporarily block certain LacNAc moieties from sulfation by keratan sulfate galactose 6-sulfotransferase (CHST1). The patterns of α1,3-fucosylation and α2,6-sialylation can be controlled by exploiting the mutual exclusivity of these modifications, which in turn controls the sites of sulfation by CHST1. Late-stage treatment with a fucosidase or sialidase to remove blocking fucosides or sialosides provides selectively sulfated KS oligosaccharides. These treatments also unmasked specific galactosides for further modification by CHST1. To showcase the potential of the enzymatic strategy, we have prepared a range of poly-LacNAc derivatives having different patterns of fucosylation and sulfation and several N-glycans decorated by specific arrangements of sulfates.
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Affiliation(s)
- Yunfei Wu
- Department
of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical
Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Gerlof P. Bosman
- Department
of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical
Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Digantkumar Chapla
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Chin Huang
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
- Department
of Biochemistry and Molecular Biology, University
of Georgia, Athens, Georgia 30602, United States
| | - Kelley W. Moremen
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
- Department
of Biochemistry and Molecular Biology, University
of Georgia, Athens, Georgia 30602, United States
| | - Robert P. de Vries
- Department
of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical
Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Geert-Jan Boons
- Department
of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical
Sciences, and Bijvoet Center for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
- Complex
Carbohydrate Research Center, University
of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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20
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Durin Z, Raynor A, Fenaille F, Cholet S, Vuillaumier-Barrot S, Alili JM, Poupon J, Oussedik ND, Tuchmann-Durand C, Attali J, Touzé R, Dupré T, Lebredonchel E, Akaffou MA, Legrand D, de Lonlay P, Bruneel A, Foulquier F. Efficacy of oral manganese and D- galactose therapy in a patient bearing a novel TMEM165 variant. Transl Res 2024; 266:57-67. [PMID: 38013006 DOI: 10.1016/j.trsl.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/06/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023]
Abstract
TMEM165-CDG has first been reported in 2012 and manganese supplementation was shown highly efficient in rescuing glycosylation in isogenic KO cells. The unreported homozygous missense c.928G>C; p.Ala310Pro variant leading to a functional but unstable protein was identified. This patient was diagnosed at 2 months and displays a predominant bone phenotype and combined defects in N-, O- and GAG glycosylation. We administered for the first time a combined D-Gal and Mn2+ therapy to the patient. This fully suppressed the N-; O- and GAG hypoglycosylation. There was also striking improvement in biochemical parameters and in gastrointestinal symptoms. This study offers exciting therapeutic perspectives for TMEM165-CDG.
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Affiliation(s)
- Zoé Durin
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France
| | - Alexandre Raynor
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France
| | - François Fenaille
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, 91191 Gif sur Yvette, France
| | - Sophie Cholet
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, 91191 Gif sur Yvette, France
| | - Sandrine Vuillaumier-Barrot
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France; Laboratoire de biologie médicale multisites Seqoia - FMG2025, 75014 Paris, France
| | - Jean-Meidi Alili
- Filière G2m, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), 75015 Paris, France
| | - Joël Poupon
- Laboratoire de Toxicologie biologique Groupe hospitalier Saint Louis - Lariboisière - Fernand Widal, 75475, Paris, France
| | - Nouzha Djebrani Oussedik
- Laboratoire de Toxicologie biologique Groupe hospitalier Saint Louis - Lariboisière - Fernand Widal, 75475, Paris, France
| | - Caroline Tuchmann-Durand
- Institut Imagine, Biothérapie, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Institut Imagine, 75015 Paris, France
| | - Jennifer Attali
- Service de Radiologie Pédiatrique, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Institut Imagine,75015 Paris, France
| | - Romain Touzé
- Service d'Ophtalmologie Pédiatrique, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), 75015 Paris, France
| | - Thierry Dupré
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France
| | - Elodie Lebredonchel
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France
| | - Marlyse Angah Akaffou
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France
| | - Dominique Legrand
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France
| | - Pascale de Lonlay
- Filière G2m, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), 75015 Paris, France; Hôpital Universitaire Necker-Enfants-Malades, Institut Imagine, G2M, MetabERN, Université Paris Cité, 75015 Paris, France.
| | - Arnaud Bruneel
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France; INSERM UMR1193, Faculté de Pharmacie, Université Paris-Saclay, bâtiment Henri Moissan, 92400 Orsay, France.
| | - François Foulquier
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France.
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21
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Han J, Xia W, Wang D, Wang Y, Liu Z, Wu Z. Characterization of an exopolysaccharide synthesized by Lacticaseibacillus rhamnosus B6 and its immunomodulatory activity in vitro. Int J Biol Macromol 2024; 264:130576. [PMID: 38442828 DOI: 10.1016/j.ijbiomac.2024.130576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/18/2024] [Accepted: 02/29/2024] [Indexed: 03/07/2024]
Abstract
An exopolysaccharide, designated F1, was purified from the fermented milk by Lacticaseibacillus rhamnosus strain B6 (CGMCC No. 13310). F1, with the weight average molecular weight of 1.577 × 106 Da, is consisted of rhamnose, glucose and galactose in a molar ratio of 3.7:1.5: 1. The backbone included 1,3-linked Rha, 1,2,3-linked Rha, 1,2-linked Glc and 1,3-linked Glc residues, with the branching point located at O2 position of 1,2,3-linked Rha residue, and the branch chain composed of terminal linked galactose residue with a pyruvate substituent. F1 could significantly stimulate the phagocytic activity and TNF-α expression in RAW 264.7 macrophages in a dose-dependent manner, and the release of NO at 200 μg/mL as well. F1 at 200 μg/mL could stimulate the expression of the pro-inflammatory cytokine encoding genes including TNF-α and iNOS, but with a negligible upregulating effect on the mRNA expression of IL-10. F1 could up-regulate the expression of NF-κBp65 and skew macrophage polarization towards M1 phenotype. These results suggest F1 elicit an immunomodulatory effect through the NF-κB signaling pathway.
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Affiliation(s)
- Jin Han
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China
| | - Wei Xia
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Danqi Wang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China
| | - Yitian Wang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China
| | - Zhenmin Liu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China
| | - Zhengjun Wu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, PR China.
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22
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Lu J, Yang Y, Hong EK, Yin X, Wang X, Wang Y, Zhang D. Analyzing the structure-activity relationship of raspberry polysaccharides using interpretable artificial neural network model. Int J Biol Macromol 2024; 264:130354. [PMID: 38403223 DOI: 10.1016/j.ijbiomac.2024.130354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 02/06/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
The structure-activity relationship has been a hot topic in the field of polysaccharide research. Six polysaccharides and three polysaccharide fragments were obtained from raspberry pulp. Based on their structural information and immune-enhancing activity data, an artificial neural network (ANN) model was used for prediction, and Gradient-weighted class activation mapping (Grad-CAM) algorithm was exploited for explanation structure-activity relationship of these raspberry polysaccharides in the present study. The structural information and immune activity data of raspberry polysaccharides were respectively used as input and output in the ANN model. The training and testing losses of ANN model was no longer decreased after trained for 200 epochs. The mean-square error (MSE) of training set and test set stabilized around 0.003 and 0.013, and the mean absolute percentage error (MAPE) of training set and test set were 0.21 % and 0.98 %, indicating the trained ANN model converged well and exhibited strong robustness. The interpretability analysis showed that molecular weight, content of arabinose, galactose or galacturonic acid, and glycosyl linkage patterns of →3)-Arap-(1→, Araf-(1→, →4)-Galp-(1 → were the main structural factors greatly affecting the immune-enhancing activity of raspberry polysaccharides. This work may provide a new perspective for the study of structure-activity relationship of polysaccharides.
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Affiliation(s)
- Jie Lu
- School of Ecological and Environmental Engineering, Qinghai University, Xining 810016, China
| | - Yongjing Yang
- School of Ecological and Environmental Engineering, Qinghai University, Xining 810016, China.
| | - Eun-Kyung Hong
- Medvill Co., Ltd. Medvill Research Institute, Seoul 08512, Republic of Korea
| | - Xingxing Yin
- School of Ecological and Environmental Engineering, Qinghai University, Xining 810016, China.
| | - Xuehong Wang
- School of Ecological and Environmental Engineering, Qinghai University, Xining 810016, China
| | - Yuting Wang
- School of Ecological and Environmental Engineering, Qinghai University, Xining 810016, China
| | - Dejun Zhang
- School of Ecological and Environmental Engineering, Qinghai University, Xining 810016, China.
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23
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Tang Y, Zhou M, Mao Z, Zhu B, Zhou F, Ye X, Chen Y, Ding Z. Structure of a polysaccharide MDP2-1 from Melastoma dodecandrum Lour. and its anti-inflammatory effects. Int J Biol Macromol 2024; 265:131015. [PMID: 38521298 DOI: 10.1016/j.ijbiomac.2024.131015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 03/01/2024] [Accepted: 03/18/2024] [Indexed: 03/25/2024]
Abstract
The anti-inflammatory activity of polysaccharides derived from Melastoma dodecandrum Lour. was evaluated in pyretic mice and HEK-Blue™ hTLR4 cells. The testing led to the identification of MDP2-1, which was then investigated for its structural characteristics and anti-inflammatory effects. Results showed that MDP2-1 had a molecular weight of 29.234 kDa and primarily consisted of galactose, arabinose, rhamnose, glucose, glucuronic acid, and galacturonic acid. Its main backbone was composed of →4)-α-D-GalpA-(1→, →2)-α-L-Rhap-(1→, →3,4)-α-D-GalpA-(1→, →2,4)-α-D-GlcpA-(1→, and its side chains were connected by →4)-α-D-Galp-(1→, α-D-Galp-(1→, →4)-β-D-Glcp-(1→, and α-L-Araf-(1→. In vivo experiments on mice demonstrated that MDP2-1 attenuated LPS-induced acute lung injury, and in vitro experiments on RAW264.7 cells showed that MDP2-1 reduced the levels of inflammatory mediators and mitigated LPS-induced inflammatory damage by inhibiting the activation of the TLR4 downstream NF-κB/MAPK pathway. These findings suggest that MDP2-1 is a novel anti-inflammatory agent for therapeutic interventions.
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Affiliation(s)
- Youying Tang
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China
| | - Mingyuan Zhou
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China
| | - Zian Mao
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China
| | - Bingqi Zhu
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China
| | - Fangmei Zhou
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China
| | - Xiaoqing Ye
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China
| | - Yuchi Chen
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China.
| | - Zhishan Ding
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China.
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24
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Mei X, Liu G, Chen G, Zhang Y, Xue C, Chang Y. Characterization and structural identification of a family 16 carbohydrate-binding module (CBM): First structural insights into porphyran-binding CBM. Int J Biol Macromol 2024; 265:131041. [PMID: 38518929 DOI: 10.1016/j.ijbiomac.2024.131041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
Porphyran is a favorable functional polysaccharide widely distributed in Porphyra. It displays a linear structure majorly constituted by alternating 1,4-linked α-l-galactopyranose-6-sulfate (L6S) and 1,3-linked β-d-galactopyranose (G) units. Carbohydrate-binding modules (CBMs) are desired tools for the investigation and application of polysaccharides, including in situ visualization, on site and specific assay, and functionalization of biomaterials. However, only one porphyran-binding CBM has been hitherto reported, and its structural knowledge is lacking. Herein, a novel CBM16 family domain from a marine bacterium Aquimarina sp. BL5 was discovered and expressed. The recombinant protein AmCBM16 exhibited the desired specificity for porphyran. Bio-layer interferometry assay revealed that the protein binds to porphyran tetrasaccharide (L6S-G)2 with an association constant of 1.3 × 103 M-1. The structure of AmCBM16 was resolved by the X-ray crystallography, which displays a β-sandwich fold with two antiparallel β-sheets constituted by 10 β-strands. Site-directed mutagenesis analysis demonstrated that the residues Gly-30, Trp-31, Lys-88, Lys-123, Phe-125, and Phe-127 play dominant roles in AmCBM16 binding. This study provides the first structural insights into porphyran-binding CBM.
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Affiliation(s)
- Xuanwei Mei
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
| | - Guanchen Liu
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
| | - Guangning Chen
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
| | - Yuying Zhang
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
| | - Yaoguang Chang
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China.
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25
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Nie L, He K, Qiu C, Li Q, Xiong B, Gao C, Zhang X, Jing M, Wu W, Liu J, Zhang G, Zhang Z, Yang X, Sun Y, Wang Y. Tetramethylpyrazine Nitrone alleviates D- galactose-induced murine skeletal muscle aging and motor deficits by activating the AMPK signaling pathway. Biomed Pharmacother 2024; 173:116415. [PMID: 38479182 DOI: 10.1016/j.biopha.2024.116415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/29/2024] [Accepted: 03/06/2024] [Indexed: 03/27/2024] Open
Abstract
Tetramethylpyrazine nitrone (TBN), a novel derivative of tetramethylpyrazine (TMP) designed and synthesized by our group, possesses multi-functional mechanisms of action and displays broad protective effects in vitro and in animal models of age-related brain disorders such as stroke, Alzheimer's disease (AD), Amyotrophic Lateral Sclerosis (ALS) and Parkinson's disease (PD). In the present report, we investigated the effects of TBN on aging, specifically on muscle aging and the associated decline of motor functions. Using a D-galactose-induced aging mouse model, we found that TBN could reverse the levels of several senescence and aging markers including p16, p21, ceramides, and telomere length and increase the wet-weight ratio of gastrocnemius muscle tissue, demonstrating its efficacy in ameliorating muscle aging. Additionally, the pharmacological effects of TBN on motor deficits (gait analysis, pole-climbing test and grip strength test), muscle fibrosis (hematoxylin & eosin (HE), Masson staining, and αSMA staining), inflammatory response (IL-1β, IL-6, and TNF-α), and mitochondrial function (ATP, mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) were also confirmed in the D-galactose-induced aging models. Further experiments demonstrated that TBN alleviated muscle aging and improved the decline of age-related motor deficits through an AMPK-dependent mechanism. These findings highlight the significance of TBN as a potential anti-aging agent to combat the occurrence and development of aging and age-related diseases.
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Affiliation(s)
- Lulin Nie
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China; Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Kaiwu He
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), No. 1017, Dongmen North Road, Shenzhen, 518020, China; Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou, China
| | - Chaoming Qiu
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China; Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Qing Li
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Bocheng Xiong
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Chuanyue Gao
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Xiufen Zhang
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Mei Jing
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Wei Wu
- Department of Hematology, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Jianjun Liu
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Gaoxiao Zhang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Zaijun Zhang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Xifei Yang
- Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China.
| | - Yewei Sun
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China.
| | - Yuqiang Wang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, and Institute of New Drug Research, Jinan University College of Pharmacy, Guangzhou 510632, China.
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Mei X, Zhang Y, Jiang X, Liu G, Shen J, Xue C, Xiao H, Chang Y. Discovery and characterization of a novel carbohydrate-binding module: a favorable tool for investigating agarose. J Sci Food Agric 2024; 104:2792-2797. [PMID: 38010608 DOI: 10.1002/jsfa.13164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/21/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Agarose, mainly composed of 3,6-anhydro-α-l-galactopyranose (LA) and β-d-galactopyranose (G) units, is an important polysaccharide with wide applications in food, biomedical and bioengineering industries. Carbohydrate-binding modules (CBMs) are favorable tools for the investigations of polysaccharides. Few agarose-binding CBMs have been hitherto reported, and their binding specificity is unclear. RESULTS An unknown domain with a predicted β-sandwich fold was discovered from a β-agarase of the marine bacterium Wenyingzhuangia fucanilytica CZ1127T . The expressed protein WfCBM101 could bind to agarose and exhibited relatively weak affinity for porphyran, with no affinity for the other seven examined polysaccharides. The protein binds to the tetrasaccharide (LA-G)2 , but not to the major tetrasaccharide contained in porphyran. The sequence novelty and well-defined binding function of WfCBM101 shed light on a novel CBM family (CBM101). Furthermore, the feasibility of WfCBM101 for visualizing agarose in situ was confirmed. CONCLUSION A novel CBM, WfCBM101, with a desired specificity for agarose was discovered and characterized, which represents a new CBM family. The CBM could be utilized as a promising tool for studies of agarose. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xuanwei Mei
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Yuying Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xiaoxiao Jiang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Guanchen Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Jingjing Shen
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Yaoguang Chang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
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Figueiredo C, Psotta C, Jayakumar K, Lielpetere A, Mandal T, Schuhmann W, Leech D, Falk M, Pita M, Shleev S, De Lacey AL. Effect of Protection Polymer Coatings on the Performance of an Amperometric Galactose Biosensor in Human Plasma. Biosensors (Basel) 2024; 14:167. [PMID: 38667160 PMCID: PMC11047878 DOI: 10.3390/bios14040167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/22/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024]
Abstract
Galactose monitoring in individuals allows the prevention of harsh health conditions related to hereditary metabolic diseases like galactosemia. Current methods of galactose detection need development to obtain cheaper, more reliable, and more specific sensors. Enzyme-containing amperometric sensors based on galactose oxidase activity are a promising approach, which can be enhanced by means of their inclusion in a redox polymer coating. This strategy simultaneously allows the immobilization of the biocatalyst to the electroactive surface and hosts the electron shuttling units. An additional deposition of capping polymers prevents external interferences like ascorbic or uric acid as well as biofouling when measuring in physiological fuels. This work studies the protection effect of poly(2-methacryloyloxyethyl phosphorylcholine-co-glycidyl methacrylate (MPC) and polyvinylimidazole-polysulfostyrene (P(VI-SS)) when incorporated in the biosensor design for the detection of galactose in human plasma.
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Affiliation(s)
- Carina Figueiredo
- Instituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie 2, 28049 Madrid, Spain; (C.F.)
| | - Carolin Psotta
- Department of Biomedical Science, Faculty of Health and Society, & Biofilms-Research Center for Biointerfaces, Malmo University, 205 06 Malmö, Sweden (S.S.)
- Aptusens AB, 293 94 Kyrkhult, Sweden
| | - Kavita Jayakumar
- School of Biological and Chemical Sciences & Ryan Institute, University of Galway, H91 TK33 Galway, Ireland (T.M.)
| | - Anna Lielpetere
- Analytical Chemistry-Center for Electrochemical Science (CES), Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, 44791 Bochum, Germany; (A.L.); (W.S.)
| | - Tanushree Mandal
- School of Biological and Chemical Sciences & Ryan Institute, University of Galway, H91 TK33 Galway, Ireland (T.M.)
| | - Wolfgang Schuhmann
- Analytical Chemistry-Center for Electrochemical Science (CES), Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, 44791 Bochum, Germany; (A.L.); (W.S.)
| | - Dónal Leech
- School of Biological and Chemical Sciences & Ryan Institute, University of Galway, H91 TK33 Galway, Ireland (T.M.)
| | - Magnus Falk
- Department of Biomedical Science, Faculty of Health and Society, & Biofilms-Research Center for Biointerfaces, Malmo University, 205 06 Malmö, Sweden (S.S.)
| | - Marcos Pita
- Instituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie 2, 28049 Madrid, Spain; (C.F.)
| | - Sergey Shleev
- Department of Biomedical Science, Faculty of Health and Society, & Biofilms-Research Center for Biointerfaces, Malmo University, 205 06 Malmö, Sweden (S.S.)
- Aptusens AB, 293 94 Kyrkhult, Sweden
| | - Antonio L. De Lacey
- Instituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie 2, 28049 Madrid, Spain; (C.F.)
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Fuchs A, Romeis D, Hupfeld E, Sieber V. Biocatalytic Conversion of Carrageenans for the Production of 3,6-Anhydro-D- galactose. J Agric Food Chem 2024; 72:5816-5827. [PMID: 38442258 PMCID: PMC10958521 DOI: 10.1021/acs.jafc.3c08613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 03/07/2024]
Abstract
Marine biomass stands out as a sustainable resource for generating value-added chemicals. In particular, anhydrosugars derived from carrageenans exhibit a variety of biological functions, rendering them highly promising for utilization and cascading in food, cosmetic, and biotechnological applications. However, the limitation of available sulfatases to break down the complex sulfation patterns of carrageenans poses a significant limitation for the sustainable production of valuable bioproducts from red algae. In this study, we screened several carrageenolytic polysaccharide utilization loci for novel sulfatase activities to assist the efficient conversion of a variety of sulfated galactans into the target product 3,6-anhydro-D-galactose. Inspired by the carrageenolytic pathways in marine heterotrophic bacteria, we systematically combined these novel sulfatases with other carrageenolytic enzymes, facilitating the development of the first enzymatic one-pot biotransformation of ι- and κ-carrageenan to 3,6-anhdyro-D-galactose. We further showed the applicability of this enzymatic bioconversion to a broad series of hybrid carrageenans, rendering this process a promising and sustainable approach for the production of value-added biomolecules from red-algal feedstocks.
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Affiliation(s)
- Alexander Fuchs
- Chair
of Chemistry of Biogenic Resources, TUM Campus Straubing for Biotechnology
and Sustainability, Technical University
of Munich, Schulgasse 16, 94315 Straubing, Germany
| | - Dennis Romeis
- Chair
of Chemistry of Biogenic Resources, TUM Campus Straubing for Biotechnology
and Sustainability, Technical University
of Munich, Schulgasse 16, 94315 Straubing, Germany
| | - Enrico Hupfeld
- Chair
of Chemistry of Biogenic Resources, TUM Campus Straubing for Biotechnology
and Sustainability, Technical University
of Munich, Schulgasse 16, 94315 Straubing, Germany
| | - Volker Sieber
- Chair
of Chemistry of Biogenic Resources, TUM Campus Straubing for Biotechnology
and Sustainability, Technical University
of Munich, Schulgasse 16, 94315 Straubing, Germany
- SynBioFoundry@TUM, Technical University of Munich, Schulgasse 22, 94315 Straubing, Germany
- Catalytic
Research Center, Ernst-Otto-Fischer-Straße1, 85748 Garching, Germany
- School
of Chemistry and Molecular Biosciences, The University of Queensland, 68 Copper Road, St. Lucia 4072, Australia
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Xu W, Xiang X, Lin L, Gong ZH, Xiao WJ. l-Theanine delays d- galactose-induced senescence by regulating the cell cycle and inhibiting apoptosis in rat intestinal cells. J Sci Food Agric 2024; 104:2073-2084. [PMID: 37919877 DOI: 10.1002/jsfa.13096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/22/2023] [Accepted: 11/03/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND Intestinal senescence is associated with several aging-related diseases. l-Theanine (LTA) has demonstrated strong potential as an antioxidant and antisenescence agent. This study investigated the regulatory effect of LTA on cellular senescence using an in vitro model of d-galactose (D-Gal)-induced senescence in the rat epithelial cell line, intestinal epithelioid cell-6 (IEC-6). RESULTS Treatment of IEC-6 cells with 40 mg/mL D-Gal for 48 h resulted in the successful development of the senescent cell model. Compared with D-Gal alone, both LTA preventive and delayed intervention increased cell viability and the ratio of JC-1 monomers to aggregates, increased the antioxidant capacity, and decreased the advanced glycation end product (AGE) levels and the overall number of senescent cells. Preventive and delayed intervention with 1000 μM LTA alleviated the D-Gal-induced cell cycle arrest by regulating p38, p53, CDK4, and CDK6 expression at the mRNA and protein levels, and further induced CycD1 proteins. Moreover, LTA preventive intervention reduced apoptosis to a greater degree than delayed intervention by upregulating the expression of the receptors of AGEs, Bax, Bcl-2, and NF-κB at the mRNA and protein levels. CONCLUSION Our findings indicate that LTA intervention could attenuate senescence in IEC-6 cells by regulating the cell cycle and inhibiting apoptosis. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Wei Xu
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
| | - Xi Xiang
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
| | - Ling Lin
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
| | - Zhi-Hua Gong
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
| | - Wen-Jun Xiao
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Sino-Kenya Joint Laboratory of Tea Science, Hunan Agricultural University, Changsha, China
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Li M, Niu Y, Tian L, Zhang T, Zhou S, Wang L, Sun J, Wumiti T, Chen Z, Zhou Q, Ma Y, Guo Y. Astragaloside IV alleviates macrophage senescence and d- galactose-induced bone loss in mice through STING/NF-κB pathway. Int Immunopharmacol 2024; 129:111588. [PMID: 38290207 DOI: 10.1016/j.intimp.2024.111588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/01/2024]
Abstract
BACKGROUND Senile osteoporosis (SOP) is an age-related metabolic bone disease that currently lacks specific therapeutic interventions. Thus, this study aimed to investigate the effect of Astragaloside IV (AS-IV) on macrophage senescence, bone marrow mesenchymal stem cell (BMSC) osteogenesis, and SOP progression. METHODS A senescent macrophage model was established and treated with varying concentrations of AS-IV. Cell activity was measured using the CCK8 assay. The senescence levels of macrophages were evaluated through β-galactosidase staining, PCR, and immunofluorescence. Macrophage mitochondrial function was assessed using ROS and JC-1 staining. Macrophage polarization was evaluated through PCR, Western blot, and immunofluorescence. The inhibitory effects of AS-IV on macrophage senescence were investigated using Western blot analysis. Furthermore, the effects of macrophage conditioned medium (CM) on BMSCs osteogenic were detected using ALP, alizarin red, and PCR. RESULTS AS-IV inhibited macrophage senescence and M1 polarization, alleviated mitochondrial dysfunction, and promoted M2 polarization. Mechanistically, it suppressed the STING/NF-κB pathway in H2O2-activated macrophages. Conversely, the STING agonist c-di-GMP reversed the effects of AS-IV on macrophage senescence. Additionally, AS-IV-induced macrophage CM promoted BMSC osteogenic differentiation. In vivo, AS-IV treatment ameliorated aberrant bone microstructure and bone mass loss in the SOP mouse model, inhibited macrophage senescence, and promoted M2 polarization. CONCLUSIONS By modulating the STING/NF-κB signaling pathway, AS-IV potentially inhibited macrophage senescence and stimulated osteogenic differentiation of BMSCs, thus exerting an anti-osteoporotic effect. Consequently, AS-IV may serve as an effective therapeutic candidate for the treatment of osteoporosis.
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Affiliation(s)
- Muzhe Li
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Yuanyuan Niu
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Linkun Tian
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Tianchi Zhang
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Shijie Zhou
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing 210029, Jiangsu Province, China
| | - Lining Wang
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Jie Sun
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Taxi Wumiti
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Zhiwei Chen
- Department of Orthopedics, The First Affiliated Hospital, Hengyang medical school, University of South China, Hengyang 421000, China
| | - Qinfeng Zhou
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Yong Ma
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing 210029, Jiangsu Province, China.
| | - Yang Guo
- Laboratory of New Techniques of Restoration & Reconstruction of Orthopedics and Traumatology, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China; Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing 210029, Jiangsu Province, China.
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Zhang X, Chen Y, Li X, Xu H, Yang J, Wang C, Zhang C, Deng Y, Lu A, Zheng C, Lu J. Carrier-free self-assembled nanomedicine based on celastrol and galactose for targeting therapy of hepatocellular carcinoma via inducing ferroptosis. Eur J Med Chem 2024; 267:116183. [PMID: 38354520 DOI: 10.1016/j.ejmech.2024.116183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 02/16/2024]
Abstract
Triggering ferroptosis is a potential therapeutic pathway and strategy for the prospective treatment of lethal hepatocellular carcinoma (HCC). The asialo-glycoprotein receptor (ASGPR) is an over-expressed receptor on the membranes of hepatocellular carcinoma cells (HCCs) and binds specifically to galactose (Gal) ligand. Celastrol (CE) is a potent anticancer natural product, but its poor water solubility and severe toxicity restrict its clinical application. In this study, a carrier-free self-assembled nanoparticles, CE-Gal-NPs, were designed and prepared by nanoprecipitation method, which could recognize ASGPR receptor by active targeting (Gal ligand) and passive targeting (EPR effect), access to the cell through the clathrin pathway and finally internalize to lysosomes. CE-Gal-NPs triggered reactive oxygen species (ROS)-mediated ferroptosis pathway and exerted anti-HCC effects in vitro and in vivo by down-regulating GPX4 and up-regulating COX-2 expression, depleting glutathione (GSH) levels, and increasing lipid peroxidation levels in cells and tumor tissues. In the H22 xenograft mouse model, the CE-Gal-NPs group exhibited dramatically superior tumor inhibition than the CE group, while Gal conjugating diminished the systemic toxicity of CE. Consequently, this study presented a promising strategy for CE potentiation and toxicity reduction, as well as a potential guideline for the development of clinically targeted therapeutic agents for HCC.
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Affiliation(s)
- Xin Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yao Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiao Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Hong Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jirui Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Chuanqi Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Chaozheng Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yun Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Aiping Lu
- Institute for Advancing Translational Medicine in Bone&Joint-Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, 999077, China.
| | - Chuan Zheng
- Sichuan Key Laboratory of TCM Regulating Metabolic Diseases, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
| | - Jun Lu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Institute for Advancing Translational Medicine in Bone&Joint-Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, 999077, China.
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32
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Peterson H, Wells DA, Marjoncu D, Holman K. Use of antithymocyte globulin (rabbit) in a patient with known alpha-gal syndrome undergoing allogenic stem cell transplantation. J Oncol Pharm Pract 2024; 30:417-421. [PMID: 37936368 DOI: 10.1177/10781552231212648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
INTRODUCTION Alpha-gal syndrome (AGS) is a hypersensitivity disorder in which tick bites-most commonly from the lone star tick (Ambylomma americanum)-trigger immunoglobulin E-mediated hypersensitivity reaction upon exposure to oligosaccharide galactosse-alpha-1,3-galactose (α-gal). α-gal is most notorious for being found in "red meat" products but is present in mammalian meats such as beef, pork, lamb, rabbit, and others. Manifestations of AGS hypersensitivity are variable. There is currently no in vivo data describing allergic reactions against rabbit products in patients with AGS. CASE REPORT Here, we describe a case of a 44-year-old male with myelodysplastic syndrome and a known history of AGS undergoing allogeneic hematopoietic cell transplantation (allo-HSCT) with the use of rabbit antithymocyte globulin (rATG) for graft-versus-host disease (GVHD) prophylaxis. MANAGEMENT AND OUTCOME The risk of cross-reactivity against rATG in our patient with AGS could not be ruled out and, therefore, a test dose was administered. The patient tolerated the test dose with no signs of anaphylaxis. After demonstrating tolerance to the test dose, rATG was utilized for GVHD prophylaxis. DISCUSSION Due to the heterogeneity of AGS manifestations in patients, the use of rATG in patients with known AGS should be considered on a case-by-case basis. The administration of a test dose may help predict the occurrence of severe hypersensitivity reactions. The limited data surrounding the risk of AGS with rabbit-containing products and the various indications for the use of rATG warrants more in-depth study of the reactivity of this medication in this population.
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Affiliation(s)
- Hannah Peterson
- Department of Pharmacy, Methodist Le Bonheur Healthcare - University Hospital, Memphis, TN, USA
| | - Drew A Wells
- Department of Pharmacy, Methodist Le Bonheur Healthcare - University Hospital, Memphis, TN, USA
- Department of Clinical Pharmacy and Translational Science, The University of Tennessee Health Science Center College of Pharmacy, Memphis, TN, USA
| | - Dennis Marjoncu
- Department of Pharmacy, Methodist Le Bonheur Healthcare - University Hospital, Memphis, TN, USA
| | - Kori Holman
- Department of Pharmacy, Methodist Le Bonheur Healthcare - University Hospital, Memphis, TN, USA
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Kleuter M, Yu Y, Pancaldi F, Nagtzaam M, van der Goot AJ, Trindade LM. Cell wall as a barrier for protein extraction from tomato leaves: A biochemical study. Plant Physiol Biochem 2024; 208:108495. [PMID: 38452451 DOI: 10.1016/j.plaphy.2024.108495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 03/01/2024] [Indexed: 03/09/2024]
Abstract
Solanum lycopersicum (Tomato) leaves and stems are considered waste. Valorization of this waste can be achieved by for example the extraction of proteins. This prospect is promising but currently not feasible, since protein extraction yields from tomato leaves are low, amongst other due to the (physical) barrier formed by the plant cell walls. However, the molecular aspects of the relationship between cell wall properties and protein extractability from tomato leaves are currently not clear and thus objective of this study. To fill this knowledge gap the biochemical composition of plant cell walls was measured and related to protein extraction yields at different plant ages, leaf positions, and across different tomato accessions, including two Solanum lycopersicum cultivars and the wildtype species S. pimpinellifolium and S. pennellii. For all genotypes, protein extraction yields from tomato leaves were the highest in young tissues, with a decreasing trend towards older plant material. This decrease of protein extraction yield was accompanied by a significant increase of arabinose and galacturonic acid content and a decrease of galactose content in the cell walls of old-vs-young tissues. This resulted in strong negative correlations between protein extraction yield and the content of arabinose and galacturonic acid in the cell wall, and a positive correlation between the content of galactose and protein extraction yield. Overall, these results point to the importance of the pectin network on protein extractability, making pectin a potential breeding target for enhancing protein extractability from tomato leaves.
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Affiliation(s)
- Marietheres Kleuter
- Department of Plant Sciences, Plant Breeding, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands.
| | - Yafei Yu
- Laboratory of Food Process Engineering, Wageningen University, PO Box 17, 6700 AA, Wageningen, the Netherlands.
| | - Francesco Pancaldi
- Department of Plant Sciences, Plant Breeding, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands.
| | - Mayra Nagtzaam
- Department of Plant Sciences, Plant Breeding, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands.
| | - Atze Jan van der Goot
- Laboratory of Food Process Engineering, Wageningen University, PO Box 17, 6700 AA, Wageningen, the Netherlands.
| | - Luisa M Trindade
- Department of Plant Sciences, Plant Breeding, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands.
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Ellibishy F, Tarek M, Abd-Elsalam MM, Elgayar N, El Bakly W. Metformin improves d- galactose induced premature ovarian insufficiency through PI3K-Akt-FOXO3a pathway. Adv Med Sci 2024; 69:70-80. [PMID: 38387407 DOI: 10.1016/j.advms.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/23/2023] [Accepted: 02/12/2024] [Indexed: 02/24/2024]
Abstract
PURPOSE Metformin (MET), a first-line treatment for type 2 diabetes mellitus, restores ovarian function in women with polycystic ovary syndrome. MET has been shown to increase the rate of success for in vitro fertilization when utilized in assisted reproductive technologies. This study was designed to examine the impact of MET on ovarian function and fertility in a mouse model of galactose-induced premature ovarian insufficiency (POI). We further investigated the underlying mechanisms. MATERIALS AND METHODS Female mice were divided into 4 groups: saline, d-galactose, d-galactose + MET, and MET. Body weight, ovarian index, and fertility were assessed. The hormonal profile was done. Advanced glycation end products (AGEPs), receptor for advanced glycation end products (RAGE), phosphoinositide 3-kinase (PI3K), protein kinase B (Akt), forkhead box O3a (FOXO3a) expression were measured. Ovarian follicle counting and morphology were analyzed. Immunohistochemistry of cleaved caspase-3 expression was performed. RESULTS Our findings demonstrated that MET reversed irregularities in the estrus cycle, enhanced the ovarian index, and improved the abnormal levels of hormones and AGEs induced by d-galactose. Furthermore, the expression levels of PI3K, Akt, FOXO3a, and RAGE were upregulated with d-galactose. However, MET attenuated their expression levels. The primordial follicles ratio was improved, whereas atretic follicles and apoptotic-related cleaved caspase-3 expression were decreased in the d-galactose + MET group compared to the d-galactose group. CONCLUSION This study demonstrates that MET partially rescued ovarian dysfunction and apoptosis induced by d-galactose via a mechanism involving PI3K-Akt-FOXO3a pathway. Our finding proposed that MET may be a promising alternative treatment for POI.
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Affiliation(s)
- Fatima Ellibishy
- Clinical Pharmacology Department, Faculty of Medicine, Kafr Elsheikh University, Kafr Elsheikh, Egypt.
| | - Maha Tarek
- Clinical Pharmacology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Marwa M Abd-Elsalam
- Histology & Cell Biology Department, Faculty of Medicine, Kafr Elsheikh University, Kafr Elsheikh, Egypt
| | - Nesreen Elgayar
- Clinical Pharmacology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Wesam El Bakly
- Clinical Pharmacology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Wang Y, Hils M, Fischer A, Wölbing F, Biedermann T, Schnieke A, Fischer K. Gene-edited pigs: a translational model for human food allergy against alpha-Gal and anaphylaxis. Front Immunol 2024; 15:1358178. [PMID: 38469303 PMCID: PMC10925645 DOI: 10.3389/fimmu.2024.1358178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/06/2024] [Indexed: 03/13/2024] Open
Abstract
The prevalence of food allergy is rising and is estimated to approach 10%. Red meat allergy is the first known food allergy elicited by immunoglobulin E (IgE) antibodies recognizing a carbohydrate. Due to the loss of function of the alpha-1,3-galactosyltransferase (GGTA1) gene in humans, the disaccharide galactose-α-1,3-galactose (α-Gal) cannot be synthesized and therefore became immunogenic. IgE sensitization is elicited through the skin by repetitive tick bites transmitting α-Gal. The underlying mechanisms regarding innate and adaptive immune cell activation, including the B-cell isotype switch to IgE, are poorly understood, requiring further research and physiologically relevant animal models. Here, we describe a new animal model of red meat allergy using percutaneous α-Gal sensitization of gene-edited GGTA1-deficient pigs. Total and α-Gal-specific IgG, IgG1, IgG2, IgG4, and IgE levels were tracked. Further key factors associated with allergic skin inflammation, type 2 immunity, and allergy development were measured in PBMCs and skin samples. Significant increases in α-Gal-specific IgG1 and IgE levels indicated successful sensitization to the allergen α-Gal. Intracutaneous sensitizations with α-Gal recruited lymphocytes to the skin, including elevated numbers of T helper 2 (Th2) cells. Finally, α-Gal-sensitized pigs not only recognized α-Gal as non-self-antigen following α-Gal exposure through the skin but also developed anaphylaxis upon antigen challenge. Based on the similarities between the porcine and human skin, this new large animal model for α-Gal allergy should help to unveil the consecutive steps of cutaneous sensitization and aid the development of prophylactic and treatment interventions.
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Affiliation(s)
- Ying Wang
- Chair of Livestock Biotechnology, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Miriam Hils
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University of Munich, Munich, Germany
| | - Andrea Fischer
- Chair of Livestock Biotechnology, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Florian Wölbing
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University of Munich, Munich, Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University of Munich, Munich, Germany
| | - Angelika Schnieke
- Chair of Livestock Biotechnology, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Konrad Fischer
- Chair of Livestock Biotechnology, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
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Chou TC, Hu YL, Xie GC, Jiang JC, Peng LY, Tsai HC, Yao CT, Tsai YJ, Huang TY, Hu JW, Chen YC, Tsai MY, Chen YW, Pan PS. The use of multicomponent reactions in the development of bis-boronic acids for the detection of β-sialic acid. Org Biomol Chem 2024; 22:1639-1645. [PMID: 38180439 DOI: 10.1039/d3ob01877f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Sialic acid (SA) is a naturally occurring monosaccharide found in glycoproteins and glycolipids. Changes in the expression of SA are associated with several diseases; thus, the detection of SA is of great significance for biological research, cancer diagnosis, and treatment. Boronic acid analogs have emerged as a promising tool for detecting sugars such as SA due to its reversible covalent bonding ability. In this study, 11 bis-boronic acid compounds and 2 mono-boronic acid compounds were synthesized via a highly efficient Ugi-4CR strategy. The synthesized compounds were subjected to affinity fluorescence binding experiments to evaluate their binding capability to SA. Compound A1 was shown to have a promising binding constant of 2602 ± 100 M-1 at pH = 6.0. Density Functional Theory (DFT) calculations examining the binding modes between A1 and SA indicated that the position of the boronic acid functional group was strongly correlated with its interaction with SA's α-hydroxy acid unit. The DFT calculations were consistent with the observations from the fluorescence experiments, demonstrating that the number and relative positions of the boronic acid functional groups are critical factors in enhancing the binding affinity to SA. DFT calculations of both S and R configuration of A1 indicated that the effect of the S/R configuration of A1 on its binding with β-sialic acid was insignificant as the Ugi-4CR generated racemic products. A fluorine atom was incorporated into the R2 substituent of A1 as an electron-withdrawing group to produce A5, which possessed a significantly higher capability to bind to SA (Keq = 7015 ± 5 M-1 at pH = 6.0). Finally, A1 and A5 were shown to possess exceptional binding selectivity toward β-sialic acid under pH of 6.0 and 6.5 while preferring to bind with glucose, fructose, and galactose under pH of 7.0 and 7.5.
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Affiliation(s)
- Tzu-Ching Chou
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Ying-Li Hu
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Guan-Cheng Xie
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Jyh-Chiang Jiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Liang-Ying Peng
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Hsiao-Chun Tsai
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Chiao-Tien Yao
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Yi-Jie Tsai
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Ting-Yu Huang
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Jing-Wen Hu
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Yi-Ching Chen
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Min-Yeh Tsai
- Department of Chemistry and Biochemistry, National Chung Cheng University, Minhsiung, Taiwan
| | - Yi-Wei Chen
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Po-Shen Pan
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
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Li Y, Chen Q, Liu S, Deng L, Li S, Gao R. Efficient One-Pot Synthesis of Uridine Diphosphate Galactose Employing a Trienzyme System. J Agric Food Chem 2024; 72:3644-3653. [PMID: 38335068 DOI: 10.1021/acs.jafc.3c08749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
The limited availability of high-cost nucleotide sugars is a significant constraint on the application of their downstream products (glycosides and prebiotics) in the food or pharmaceutical industry. To better solve the problem, this study presented a one-pot approach for the biosynthesis of UDP-Gal using a thermophilic multienzyme system consisting of GalK, UGPase, and PPase. Under optimal conditions, a 2 h reaction resulted in a UTP conversion rate of 87.4%. In a fed-batch reaction with Gal/ATP = 20 mM:10 mM, UDP-Gal accumulated to 33.76 mM with a space-time yield (STY) of 6.36 g/L·h-1 after the second feeding. In repetitive batch synthesis, the average yield of UDP-Gal over 8 cycles reached 10.80 g/L with a very low biocatalyst loading of 0.002 genzymes/gproduct. Interestingly, Galk (Tth0595) could synthesize Gal-1P using ADP as a donor of phosphate groups, which had never been reported before. This approach possessed the benefits of high synthesis efficiency, low cost, and superior reaction system stability, and it provided new insights into the rapid one-pot synthesis of UDP-Gal and high-value glycosidic compounds.
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Affiliation(s)
- Yajing Li
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Science, Jilin University, Changchun 130021, China
| | - Qi Chen
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Science, Jilin University, Changchun 130021, China
| | - Siyao Liu
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Science, Jilin University, Changchun 130021, China
| | - Lin Deng
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Science, Jilin University, Changchun 130021, China
| | - Shichao Li
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Science, Jilin University, Changchun 130021, China
| | - Renjun Gao
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Science, Jilin University, Changchun 130021, China
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Ishii N, Inoue S, Sano K, Takahashi S, Matsuo I. Synthesis of a fluorescent probe for measuring the activity of endo-β-N-acetylglucosaminidases recognizing hybrid-type N-glycans. Bioorg Med Chem 2024; 100:117612. [PMID: 38290307 DOI: 10.1016/j.bmc.2024.117612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/22/2024] [Accepted: 01/26/2024] [Indexed: 02/01/2024]
Abstract
A fluorescence-quenching-based assay system was constructed to determine the hydrolytic activity of endo-β-N-acetylglucosaminidases (ENGases) interacting with hybrid-type N-glycans. This was achieved using a dual-labeled fluorescent probe with a nonasaccharide structure. We produced the nonasaccharide skeleton by the stepwise glycosylation of the galactose residue on a galactosyl chitobiose derivative. Next, we introduced azido and acetoxy groups into the nonasaccharide derivative in a stepwise manner, which led to stereochemistry inversion at both the C-4 and C-2 hydroxy groups on its galactose residue. The protecting groups of the resulting nonasaccharide derivative were removed, and the derivative was labeled with an N-methylanthraniloyl group to obtain a reporter dye and a 2,4-dinitrophenyl group as a quenching molecule to obtain target probe 1. The use of this probe along with a microplate reader enabled a facile evaluation of the hydrolytic activities of ENGases Endo-H, Endo-M, Endo-F3, Endo-S, and Endo-CC. Furthermore, this probe could also assist in the search for novel ENGases that are specific to hybrid-type N-glycans.
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Affiliation(s)
- Nozomi Ishii
- Graduate School of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Shusei Inoue
- Graduate School of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Kanae Sano
- Graduate School of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Satoshi Takahashi
- Graduate School of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Ichiro Matsuo
- Graduate School of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
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Iglesia EGA, Kwan M, Virkud YV, Iweala OI. Management of Food Allergies and Food-Related Anaphylaxis. JAMA 2024; 331:510-521. [PMID: 38349368 PMCID: PMC11060332 DOI: 10.1001/jama.2023.26857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Importance An estimated 7.6% of children and 10.8% of adults have IgE-mediated food-protein allergies in the US. IgE-mediated food allergies may cause anaphylaxis and death. A delayed, IgE-mediated allergic response to the food-carbohydrate galactose-α-1,3-galactose (alpha-gal) in mammalian meat affects an estimated 96 000 to 450 000 individuals in the US and is currently a leading cause of food-related anaphylaxis in adults. Observations In the US, 9 foods account for more than 90% of IgE-mediated food allergies-crustacean shellfish, dairy, peanut, tree nuts, fin fish, egg, wheat, soy, and sesame. Peanut is the leading food-related cause of fatal and near-fatal anaphylaxis in the US, followed by tree nuts and shellfish. The fatality rate from anaphylaxis due to food in the US is estimated to be 0.04 per million per year. Alpha-gal syndrome, which is associated with tick bites, is a rising cause of IgE-mediated food anaphylaxis. The seroprevalence of sensitization to alpha-gal ranges from 20% to 31% in the southeastern US. Self-injectable epinephrine is the first-line treatment for food-related anaphylaxis. The cornerstone of IgE-food allergy management is avoidance of the culprit food allergen. There are emerging immunotherapies to desensitize to one or more foods, with one current US Food and Drug Administration-approved oral immunotherapy product for treatment of peanut allergy. Conclusions and Relevance IgE-mediated food allergies, including delayed IgE-mediated allergic responses to red meat in alpha-gal syndrome, are common in the US, and may cause anaphylaxis and rarely, death. IgE-mediated anaphylaxis to food requires prompt treatment with epinephrine injection. Both food-protein allergy and alpha-gal syndrome management require avoiding allergenic foods, whereas alpha-gal syndrome also requires avoiding tick bites.
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Affiliation(s)
- Edward G A Iglesia
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Mildred Kwan
- Thurston Arthritis Research Center, Division of Rheumatology, Allergy, and Immunology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill
| | - Yamini V Virkud
- University of North Carolina Food Allergy Initiative, Division of Allergy and Immunology, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill
| | - Onyinye I Iweala
- Thurston Arthritis Research Center, Division of Rheumatology, Allergy, and Immunology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill
- University of North Carolina Food Allergy Initiative, Division of Allergy and Immunology, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill
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Maurya AK, Ahmed HA, DeWitt A, Shami AA, Misra SK, Pomin VH. Structure and Binding Properties to Blood Co-Factors of the Least Sulfated Galactan Found in the Cell Wall of the Red Alga Botryocladia occidentalis. Mar Drugs 2024; 22:81. [PMID: 38393052 PMCID: PMC10890634 DOI: 10.3390/md22020081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/03/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Three different populations of sulfated polysaccharides can be found in the cell wall of the red alga Botryocladia occidentalis. In a previous work, the structures of the two more sulfated polysaccharides were revised. In this work, NMR-based structural analysis was performed on the least sulfated polysaccharide and its chemically modified derivatives. Results have revealed the presence of both 4-linked α- and 3-linked β-galactose units having the following chemical features: more than half of the total galactose units are not sulfated, the α-units occur primarily as 3,6-anhydrogalactose units either 2-O-methylated or 2-O-sulfated, and the β-galactose units can be 4-O-sulfated or 2,4-O-disulfated. SPR-based results indicated weaker binding of the least sulfated galactan to thrombin, factor Xa, and antithrombin, but stronger binding to heparin cofactor II than unfractionated heparin. This report together with our previous publication completes the structural characterization of the three polysaccharides found in the cell wall of the red alga B. occidentalis and correlates the impact of their composing chemical groups with the levels of interaction with the blood co-factors.
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Affiliation(s)
- Antim K. Maurya
- Department of BioMolecular Sciences, University of Mississippi, Oxford, MS 38677, USA; (A.K.M.)
| | - Hoda Al. Ahmed
- Department of BioMolecular Sciences, University of Mississippi, Oxford, MS 38677, USA; (A.K.M.)
| | - Anderson DeWitt
- Department of BioMolecular Sciences, University of Mississippi, Oxford, MS 38677, USA; (A.K.M.)
| | - Anter A. Shami
- Department of BioMolecular Sciences, University of Mississippi, Oxford, MS 38677, USA; (A.K.M.)
| | - Sandeep K. Misra
- Department of BioMolecular Sciences, University of Mississippi, Oxford, MS 38677, USA; (A.K.M.)
| | - Vitor H. Pomin
- Department of BioMolecular Sciences, University of Mississippi, Oxford, MS 38677, USA; (A.K.M.)
- Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
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Sharma SR, Choudhary SK, Vorobiov J, Commins SP, Karim S. Tick bite-induced alpha-gal syndrome and immunologic responses in an alpha-gal deficient murine model. Front Immunol 2024; 14:1336883. [PMID: 38390396 PMCID: PMC10882631 DOI: 10.3389/fimmu.2023.1336883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 12/26/2023] [Indexed: 02/24/2024] Open
Abstract
Introduction Alpha-Gal Syndrome (AGS) is a delayed allergic reaction due to specific IgE antibodies targeting galactose-α-1,3-galactose (α-gal), a carbohydrate found in red meat. This condition has gained significant attention globally due to its increasing prevalence, with more than 450,000 cases estimated just in the United States alone. Previous research has established a connection between AGS and tick bites, which sensitize individuals to α-gal antigens and elevate the levels of specific IgE. However, the precise mechanism by which tick bites influence the host's immune system and contribute to the development of AGS remains poorly understood. This study investigates various factors related to ticks and the host associated with the development of AGS following a tick bite, using mice with a targeted disruption of alpha-1,3-galactosyltransferase (AGKO) as a model organism. Methods Lone-star tick (Amblyomma americanum) and gulf-coast tick (Amblyomma maculatum) nymphs were used to sensitize AGKO mice, followed by pork meat challenge. Tick bite site biopsies from sensitized and non-sensitized mice were subjected to mRNA gene expression analysis to assess the host immune response. Antibody responses in sensitized mice were also determined. Results Our results showed a significant increase in the total IgE, IgG1, and α-gal IgG1 antibodies titers in the lone-star tick-sensitized AGKO mice compared to the gulf-coast tick-sensitized mice. Pork challenge in Am. americanum -sensitized mice led to a decline in body temperature after the meat challenge. Gene expression analysis revealed that Am. americanum bites direct mouse immunity toward Th2 and facilitate host sensitization to the α-gal antigen. Conclusion This study supports the hypothesis that specific tick species may increase the risk of developing α-gal-specific IgE and hypersensitivity reactions or AGS, thereby providing opportunities for future research on the mechanistic role of tick and host-related factors in AGS development.
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Affiliation(s)
- Surendra Raj Sharma
- School of Biological, Environment and Earth Sciences, The University of Southern Mississippi, Hattiesburg, MS, United States
| | - Shailesh K Choudhary
- Department of Medicine and Pediatrics, University of North Carolina, Chapel Hill, NC, United States
| | - Julia Vorobiov
- Department of Medicine and Pediatrics, University of North Carolina, Chapel Hill, NC, United States
| | - Scott P Commins
- Department of Medicine and Pediatrics, University of North Carolina, Chapel Hill, NC, United States
| | - Shahid Karim
- School of Biological, Environment and Earth Sciences, The University of Southern Mississippi, Hattiesburg, MS, United States
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Keet C, McGowan EC, Jacobs D, Post WS, Richards NE, Workman LJ, Platts-Mills TAE, Manichaikul A, Wilson JM. IgE to common food allergens is associated with cardiovascular mortality in the National Health and Examination Survey and the Multi-Ethnic Study of Atherosclerosis. J Allergy Clin Immunol 2024; 153:471-478.e3. [PMID: 37943208 PMCID: PMC10922097 DOI: 10.1016/j.jaci.2023.09.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/30/2023] [Accepted: 09/25/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND In individuals without symptomatic food allergy, food-specific IgE is considered clinically irrelevant. However, recent studies have suggested that galactose-α-1,3-galactose (alpha-gal) IgE is associated with cardiovascular (CV) disease. OBJECTIVE We sought to determine whether sensitization to common food allergens is associated with CV mortality. METHODS The association between IgE sensitization to foods and CV mortality ascertained to 2019 was examined in the National Health and Examination Survey (NHANES) 2005-2006 and the Wake Forest site of the Multi-Ethnic Study of Atherosclerosis (MESA) cohort; MESA enrolled adults without baseline clinical CV diseases between 2000 and 2002. Total and specific IgE was measured to cow's milk, egg, peanut, shrimp, and a panel of aeroallergens (NHANES), and to cow's milk, alpha-gal, peanut, dust mite, and timothy grass (MESA). Cox proportional hazard models were constructed, adjusting for sex, age, race/ethnicity, smoking, education, and asthma. RESULTS A total of 4414 adults from NHANES (229 CV deaths) and 960 from MESA (56 CV deaths) were included. In NHANES, sensitization to at least 1 food was associated with higher CV mortality (hazard ratio [HR], 1.7 [95% confidence interval (CI), 1.2-2.4], P = .005). Milk sensitization was particularly associated (HR, 2.0 [95% CI, 1.1-3.8], P = .026), a finding replicated in MESA (HR, 3.8 [95% CI, 1.6-9.1], P = .003). Restricting analyses in NHANES to consumers of the relevant allergen strengthened food sensitization relationships, unmasking shrimp and peanut sensitization as additional risk factors for CV mortality. CONCLUSIONS The finding that food sensitization is associated with increased risk of CV mortality challenges the current paradigm that sensitization without overt allergy is benign. Further research is needed to clarify mechanisms of this association.
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Affiliation(s)
- Corinne Keet
- Department of Pediatrics, University of North Carolina, Chapel Hill School of Medicine, Chapel Hill, NC.
| | - Emily C McGowan
- Division of Allergy and Clinical Immunology, University of Virginia School of Medicine, Charlottesville, Va
| | - David Jacobs
- University of Minnesota School of Public Health, Minneapolis, Minn
| | - Wendy S Post
- Division of Cardiology, Johns Hopkins School of Medicine, Baltimore, Md
| | - Nathan E Richards
- Division of Allergy and Clinical Immunology, University of Virginia School of Medicine, Charlottesville, Va
| | - Lisa J Workman
- Division of Allergy and Clinical Immunology, University of Virginia School of Medicine, Charlottesville, Va
| | - Thomas A E Platts-Mills
- Division of Allergy and Clinical Immunology, University of Virginia School of Medicine, Charlottesville, Va
| | - Ani Manichaikul
- Department of Public Health Sciences, Center for Public Health Genomics, University of Virginia School of Medicine, Charlottesville
| | - Jeffrey M Wilson
- Division of Allergy and Clinical Immunology, University of Virginia School of Medicine, Charlottesville, Va
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Zhu K, Wang X, Weng Y, Mao G, Bao Y, Lou J, Wu S, Jin W, Tang L. Sulfated Galactofucan from Sargassum Thunbergii Attenuates Atherosclerosis by Suppressing Inflammation Via the TLR4/MyD88/NF-κB Signaling Pathway. Cardiovasc Drugs Ther 2024; 38:69-78. [PMID: 36194354 DOI: 10.1007/s10557-022-07383-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/12/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Sulfated galactofucan (SWZ-4), which was extracted from Sargassum thunbergii, has recently been reported to show anti-inflammatory and anticancer properties. The present study aimed to evaluate whether SWZ-4 attenuates atherosclerosis in apolipoprotein E-knockout (ApoE-KO) mice by suppressing the inflammatory response through the TLR4/MyD88/NF-κB signaling pathway. METHODS Male ApoE-KO mice were fed with a high-fat diet for 16 weeks and intraperitoneally injected with SWZ-4. RAW246.7 cells were treated with lipopolysaccharide (LPS) and SWZ-4. Atherosclerotic lesions were measured by Sudan IV and oil red O staining. Serum lipid profiles, inflammatory cytokines, and mRNA and protein expression levels were evaluated. RESULTS SWZ-4 decreased serum TNF-α, IL-6 and IL-1 levels, but did not reduce blood lipid profiles. SWZ-4 downregulated the mRNA and protein expression of TLR4 and MyD88, reduced the phosphorylation of p65, and attenuated atherosclerosis in the ApoE-KO mice (p < 0.01). In LPS-stimulated RAW 264.7 cells, SWZ-4 inhibited proinflammatory cytokine production and the mRNA expression of TLR4, MyD88, and p65 and reduced the protein expression of TLR4 and MyD88 and the phosphorylation of p65 (p < 0.01). CONCLUSION These results suggest that SWZ-4 may exert an anti-inflammatory effect on ApoE-KO atherosclerotic mice by inhibiting the TLR4/MyD88/NF-κB signaling pathway in macrophages and therefore may be a treatment for atherosclerosis.
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Affiliation(s)
- Kefu Zhu
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, Zhejiang Province, China
| | - Xihao Wang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310000, Zhejiang Province, China
| | - Yingzheng Weng
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, Zhejiang Province, China
| | - Genxiang Mao
- Zhejiang Provincial Key Lab of Geriatrics, Department of Geriatrics, Zhejiang Hospital, Hangzhou, 310013, Zhejiang Province, China
| | - Yizhong Bao
- Zhejiang Provincial Key Lab of Geriatrics, Department of Geriatrics, Zhejiang Hospital, Hangzhou, 310013, Zhejiang Province, China
| | - Jiangjie Lou
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, Zhejiang Province, China
| | - Shaoze Wu
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, Zhejiang Province, China
| | - Weihua Jin
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang Province, China
| | - Lijiang Tang
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, Zhejiang Province, China.
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310000, Zhejiang Province, China.
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Almasri F, Collotta D, Aimaretti E, Sus N, Aragno M, Dal Bello F, Eva C, Mastrocola R, Landberg R, Frank J, Collino M. Dietary Intake of Fructooligosaccharides Protects against Metabolic Derangements Evoked by Chronic Exposure to Fructose or Galactose in Rats. Mol Nutr Food Res 2024; 68:e2300476. [PMID: 38158337 DOI: 10.1002/mnfr.202300476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 10/30/2023] [Indexed: 01/03/2024]
Abstract
SCOPE Diets rich in fat and sugars evoke chronic low-grade inflammation, leading to metabolic derangements. This study investigates the impact of fructose and galactose, two commonly consumed simple sugars, on exacerbation of the harmful effects caused by high fat intake. Additionally, the potential efficacy of fructooligosaccharides (FOS), a fermentable dietary fiber, in counteracting these effects is examined. METHODS AND RESULTS Male Sprague-Dawley rats (six/group) are fed 8 weeks as follows: control 5% fat diet (CNT), 20% fat diet (FAT), FAT+10% FOS diet (FAT+FOS), FAT+25% galactose diet (FAT+GAL), FAT+GAL+10% FOS diet (FAT+GAL+FOS), FAT+25% fructose diet (FAT+FRU), FAT+FRU+10% FOS diet (FAT+FRU+FOS). The dietary manipulations tested do not affect body weight gain, blood glucose, or markers of systemic inflammation whereas significant increases in plasma concentrations of triacylglycerols, cholesterol, aspartate aminotransferase, and alanine aminotrasferase are detected in both FAT+FRU and FAT+GAL compared to CNT. In the liver and skeletal muscle, both sugars induce significant accumulation of lipids and advanced glycation end-products (AGEs). FOS supplementation prevents these impairments. CONCLUSION This study extends the understanding of the deleterious effects of a chronic intake of simple sugars and demonstrates the beneficial role of the prebiotic FOS in dampening the sugar-induced metabolic impairments by prevention of lipid and AGEs accumulation.
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Affiliation(s)
- Fidèle Almasri
- Department of Food Biofunctionality, Institute of Nutritional Sciences, University of Hohenheim, Garbenstr. 28, 70599, Stuttgart, Germany
| | - Debora Collotta
- Department of Neurosciences "Rita Levi Montalcini", University of Turin, Corso Raffaello 30, Torino, 10125, Piemonte, Italy
| | - Eleonora Aimaretti
- Department of Clinical and Biological Sciences, University of Turin, Corso Raffaello 30, Turin, 10125, Piemonte, Italy
| | - Nadine Sus
- Department of Food Biofunctionality, Institute of Nutritional Sciences, University of Hohenheim, Garbenstr. 28, 70599, Stuttgart, Germany
| | - Manuela Aragno
- Department of Clinical and Biological Sciences, University of Turin, Corso Raffaello 30, Turin, 10125, Piemonte, Italy
| | - Federica Dal Bello
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Via Nizza 52, Torino, 10126, Piemonte, Italy
| | - Carola Eva
- Department of Neurosciences "Rita Levi Montalcini", University of Turin, Corso Raffaello 30, Torino, 10125, Piemonte, Italy
| | - Raffaella Mastrocola
- Department of Clinical and Biological Sciences, University of Turin, Corso Raffaello 30, Turin, 10125, Piemonte, Italy
| | - Rikard Landberg
- Department of Life Sciences, Division of Food and Nutrition Science, Chalmers University of Technology, Gothenburg, 41296, Sweden
| | - Jan Frank
- Department of Food Biofunctionality, Institute of Nutritional Sciences, University of Hohenheim, Garbenstr. 28, 70599, Stuttgart, Germany
| | - Massimo Collino
- Department of Neurosciences "Rita Levi Montalcini", University of Turin, Corso Raffaello 30, Torino, 10125, Piemonte, Italy
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Manetti M, Marini M, Perna A, Tani A, Sgambati E. Sialylation status and its relationship with morphofunctional changes in human adult testis during sexually mature life and aging: A narrative review. Acta Histochem 2024; 126:152143. [PMID: 38382219 DOI: 10.1016/j.acthis.2024.152143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/09/2024] [Accepted: 02/12/2024] [Indexed: 02/23/2024]
Abstract
Sialic acids (Sias) are a family of electronegatively charged nine-carbon monosaccharides containing a carboxylic acid, mostly found as terminal residues in glycans of glycoproteins and glycolipids. They are bound to galactose or N-acetylgalactosamine via α2,3 or α2,6 linkage, or to other Sias especially via α2,8 linkage, which results in monomeric, oligomeric, and polymeric forms. Sias play determinant roles in a multitude of biological processes in human tissues from development to adult life until aging. In this review, we summarized the current knowledge on the sialylation status in the human testis with a main focus on sexually mature life and aging, when this organ shows significant morphofunctional changes resulting into variations of hormonal levels, as well as changes in molecules involved in mitochondrial function, receptors, and signaling proteins. Evidence suggests that Sias may have crucial morphofunctional roles in the different testicular components during the sexually mature age. With advancing age, significant loss of Sias and/or changes in sialylation status occur in all the testicular components, which seems to contribute to morphofunctional changes characteristic of the aging testis. Based on the current knowledge, further in-depth investigations will be necessary to better understand the mechanistic role of Sias in the biological processes of human testicular tissue and the significance of their changes during the aging process. Future investigations might also contribute to the development of novel prophylactic and/or therapeutic approaches that, by maintaining/restoring the correct sialylation status, could help in slowing down the testis aging process, thus preserving the testicular structure and functionality and preventing age-related pathologies.
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Affiliation(s)
- Mirko Manetti
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, Largo Brambilla 3, Florence 50134, Italy
| | - Mirca Marini
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, Largo Brambilla 3, Florence 50134, Italy
| | - Angelica Perna
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Campobasso, Italy
| | - Alessia Tani
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, Largo Brambilla 3, Florence 50134, Italy
| | - Eleonora Sgambati
- Department of Biosciences and Territory, University of Molise, Contrada Fonte Lappone, Pesche, Isernia 86090, Italy.
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Yamaguchi T, Fukudome H, Higuchi J, Takahashi T, Tsujimori Y, Ueno HM, Toba Y, Sakai F. Label-Free Liquid Chromatography-Mass Spectrometry Quantitation of Relative N- and O-Glycan Concentrations in Human Milk in Japan. Int J Mol Sci 2024; 25:1772. [PMID: 38339050 PMCID: PMC10855831 DOI: 10.3390/ijms25031772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Human milk is abundant in carbohydrates and includes human milk oligosaccharides (HMOs) and N/O-glycans conjugated to proteins. HMO compositions and concentrations vary in individuals according to the maternal secretor status based on the fucosyltransferase 2 genotype; however, the profile of N/O-glycans remains uninvestigated because of the analytical complexity. Herein, we applied a label-free chromatography-mass spectrometry (LC-MS) technique to elucidate the variation in the composition and concentration of N/O-glycans in human milk. We used label-free LC-MS to relatively quantify 16 N-glycans and 12 O-glycans in 200 samples of Japanese human milk (1-2 months postpartum) and applied high performance anion exchange chromatography with pulsed amperometric detection to absolutely quantify the concentrations of 11 representative HMOs. Cluster analysis of the quantitative data revealed that O-glycans and several HMOs were classified according to the presence or absence of fucose linked to galactose while N-glycans were classified into a different group from O-glycans and HMOs. O-glycans and HMOs with fucose linked to galactose were more abundant in human milk from secretor mothers than from nonsecretor mothers. Thus, secretor status influenced the composition and concentration of HMOs and O-glycans but not those of N-glycans in human milk.
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Affiliation(s)
- Toshiyuki Yamaguchi
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., 1-1-2 Minamidai, Kawagoe-shi 350-1165, Saitama, Japan; (T.Y.); (H.F.); (J.H.); (H.M.U.)
| | - Hirofumi Fukudome
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., 1-1-2 Minamidai, Kawagoe-shi 350-1165, Saitama, Japan; (T.Y.); (H.F.); (J.H.); (H.M.U.)
| | - Junichi Higuchi
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., 1-1-2 Minamidai, Kawagoe-shi 350-1165, Saitama, Japan; (T.Y.); (H.F.); (J.H.); (H.M.U.)
| | - Tomoki Takahashi
- Department of Research and Development, Bean Stalk Snow Co., Ltd., 1-1-2 Minamidai, Kawagoe-shi 350-1165, Saitama, Japan; (T.T.); (Y.T.); (Y.T.)
| | - Yuta Tsujimori
- Department of Research and Development, Bean Stalk Snow Co., Ltd., 1-1-2 Minamidai, Kawagoe-shi 350-1165, Saitama, Japan; (T.T.); (Y.T.); (Y.T.)
| | - Hiroshi M. Ueno
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., 1-1-2 Minamidai, Kawagoe-shi 350-1165, Saitama, Japan; (T.Y.); (H.F.); (J.H.); (H.M.U.)
- Department of Research and Development, Bean Stalk Snow Co., Ltd., 1-1-2 Minamidai, Kawagoe-shi 350-1165, Saitama, Japan; (T.T.); (Y.T.); (Y.T.)
| | - Yasuhiro Toba
- Department of Research and Development, Bean Stalk Snow Co., Ltd., 1-1-2 Minamidai, Kawagoe-shi 350-1165, Saitama, Japan; (T.T.); (Y.T.); (Y.T.)
| | - Fumihiko Sakai
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., 1-1-2 Minamidai, Kawagoe-shi 350-1165, Saitama, Japan; (T.Y.); (H.F.); (J.H.); (H.M.U.)
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Yan C, Ji S, Wu R, Li M, He K, Shi H, Wang C, Yang H, Guo J, Wu J. Structural properties and biological activities of the extracellular polysaccharide of Bacillus subtilis LZ13-4. Int J Biol Macromol 2024; 259:129176. [PMID: 38181904 DOI: 10.1016/j.ijbiomac.2023.129176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 12/18/2023] [Accepted: 12/29/2023] [Indexed: 01/07/2024]
Abstract
The remarkable functional characteristics of Bacillus subtilis extracellular polysaccharides (BSPS) are of great interest. Therefore, in the present study, BSPS was isolated and characterized to obtain two fractions, BSPS-1 and BSPS-2, respectively, and to investigate their biological activities. BSPS-1 contained fructose, glucose, and galactose (molar ratio: 25.27:43.37:31.36), while BSPS-2 contained fructose with only trace amounts of glucose, galactose, and mannose (molar ratio: 55.08:19.03:19.21:6.68), and their respective average molecular weights were 16.9 kDa and 202.67 kDa. With a 93.55 % clearance of ABTS•+ at a concentration of 2 mg/mL of BSPS-1, the antioxidant activity revealed that BSPS-1 had greater antioxidant activity than BSPS-2 and that both were concentration-dependent. The inhibitory effect on HepG2 cells demonstrated that BSPS-1 and BSPS-2 significantly inhibited the proliferation of HepG2 and increased the expression of apoptotic proteins, causing apoptosis. The inhibition rate on HepG2 cells was dose-dependent and reached 52.7 % and 40.3 % after 48 h of action. BSPS-2 and 800 μg/mL BSPS-1 growth was inhibited in the G1/G0 phase, while 200 and 400 μg/mL BSPS-1 growth was inhibited in the S phase. In conclusion, the study of the BSPS's structure and properties can offer a theoretical foundation for real-world industrial applications.
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Affiliation(s)
- Chunyue Yan
- College of Food Science, Shenyang Agricultural University, Engineering Research Center of Food Fermentation Technology, Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, Liaoning 110866, P.R. China
| | - Shuaiqi Ji
- College of Food Science, Shenyang Agricultural University, Engineering Research Center of Food Fermentation Technology, Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, Liaoning 110866, P.R. China
| | - Rina Wu
- College of Food Science, Shenyang Agricultural University, Engineering Research Center of Food Fermentation Technology, Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, Liaoning 110866, P.R. China
| | - Mo Li
- College of Criminal Science and Technology, Criminal Investigation Police University of China, Shenyang, Liaoning, 110854, P.R. China
| | - Kairu He
- College of Food Science, Shenyang Agricultural University, Engineering Research Center of Food Fermentation Technology, Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, Liaoning 110866, P.R. China
| | - Haisu Shi
- College of Food Science, Shenyang Agricultural University, Engineering Research Center of Food Fermentation Technology, Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, Liaoning 110866, P.R. China
| | - Cong Wang
- College of Food Science, Shenyang Agricultural University, Engineering Research Center of Food Fermentation Technology, Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, Liaoning 110866, P.R. China
| | - Hui Yang
- College of Food Science, Shenyang Agricultural University, Engineering Research Center of Food Fermentation Technology, Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, Liaoning 110866, P.R. China
| | - Jia Guo
- College of Food Science, Shenyang Agricultural University, Engineering Research Center of Food Fermentation Technology, Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, Liaoning 110866, P.R. China
| | - Junrui Wu
- College of Food Science, Shenyang Agricultural University, Engineering Research Center of Food Fermentation Technology, Key Laboratory of Microbial Fermentation Technology Innovation, Shenyang, Liaoning 110866, P.R. China.
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Shin DW, Cho J, Choi KS, Lee J, Choi Y, Choi SJ, Kim SA, Moon SM, Kim ES, Kim HB, Park KU, Hong YJ, Song KH. False-positive results of galactomannan assays in patients administered glucose-containing solutions. Sci Rep 2024; 14:2552. [PMID: 38291146 PMCID: PMC10827775 DOI: 10.1038/s41598-024-53116-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 01/28/2024] [Indexed: 02/01/2024] Open
Abstract
Galactomannan (GM) is a polysaccharide cell wall component released by Aspergillus spp., and an immunoenzymatic GM assay is used for the diagnosis of invasive pulmonary aspergillosis. We evaluated the cause of strong positivity for GM in patients with no typical signs of aspergillosis. Repeat assays were performed using different instruments and reagent lots, but there were no differences in results among the assays. Patients with strongly positive GM results were investigated. Medication histories revealed that 14 of 23 patients had been administered total parenteral nutrition solution from one manufacturer and 4 patients had been administered dextrose solution from a different manufacturer before being tested. The results of GM assays conducted on samples of dextrose solution and the glucose fraction of the total parenteral nutrition solution were strongly positive, confirming the causes of the false-positive reactions. We hypothesize that a trace amount of GM was introduced into the glucose-containing solutions because glucoamylase, which is necessary for the saccharification step of glucose synthesis, was derived from Aspergillus niger. To enhance patient care and prevent unnecessary antifungal prescriptions, healthcare providers and manufacturers of healthcare products need to be aware of the possibility of false-positive reactions for GM.
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Affiliation(s)
- Dong Woo Shin
- Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jungwon Cho
- Department of Pharmacy, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Kyung Suk Choi
- Department of Pharmacy, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jungwha Lee
- Department of Pharmacy, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Yunsang Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Seong Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Sang-A Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Song Mi Moon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Eu Suk Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Hong Bin Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Kyoung Un Park
- Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yun Ji Hong
- Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - Kyoung-Ho Song
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea.
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Simau FA, Ahmed U, Khan KM, Khan NA, Siddiqui R, Alharbi AM, Alfahemi H, Anwar A. Lactase can target cellular differentiation of Acanthamoeba castellanii belonging to the T4 genotype. Parasitol Res 2024; 123:117. [PMID: 38294565 DOI: 10.1007/s00436-024-08131-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/17/2024] [Indexed: 02/01/2024]
Abstract
The free living Acanthamoeba spp. are ubiquitous amoebae associated with potentially blinding disease known as Acanthamoeba keratitis (AK) and a fatal central nervous system infection granulomatous amoebic encephalitis (GAE). With the inherent ability of cellular differentiation, it can phenotypically transform to a dormant cyst form from an active trophozoite form. Acanthamoeba cysts are highly resistant to therapeutic agents as well as contact lens cleaning solutions. One way to tackle drug resistance against Acanthamoeba is by inhibiting the formation of cysts from trophozoites. The biochemical analysis showed that the major component of Acanthamoeba cyst wall is composed of carbohydrate moieties such as galactose and glucose. The disaccharide of galactose and glucose is lactose. In this study, we analyzed the potential of lactase enzyme to target carbohydrate moieties of cyst walls. Amoebicidal assessment showed that lactase was ineffective against trophozoite of A. castellanii but enhanced amoebicidal effects of chlorhexidine. The lactase enzyme did not show any toxicity against normal human keratinocyte cells (HaCaT) at the tested range. Hence, lactase can be used for further assessment for development of potential therapeutic agents in the management of Acanthamoeba infection as well as formulation of effective contact lens disinfectants.
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Affiliation(s)
- Fathimath Afaaf Simau
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya, 47500, Selangor, Malaysia
| | - Usman Ahmed
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya, 47500, Selangor, Malaysia
| | - Khalid Mohammed Khan
- International Center for Chemical and Biological Sciences, H. E. J. Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Naveed Ahmed Khan
- Microbiota Research Center, Istinye University, Istanbul, 34010, Turkey.
| | - Ruqaiyyah Siddiqui
- Microbiota Research Center, Istinye University, Istanbul, 34010, Turkey
- Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Ahmad M Alharbi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, 21944, Taif, Saudi Arabia
| | - Hasan Alfahemi
- Department of Medical Microbiology, Faculty of Medicine, Al-Baha University, 65799, Al-Baha, Saudi Arabia
| | - Ayaz Anwar
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya, 47500, Selangor, Malaysia.
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Yang P, Wang X, Wang H, Hu Y, Wen P, Tu Z. The decrease of Ara h 2 allergenicity by glycation is determined by reducing sugar chain length and isomers. Food Chem 2024; 432:137289. [PMID: 37659330 DOI: 10.1016/j.foodchem.2023.137289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 08/14/2023] [Accepted: 08/24/2023] [Indexed: 09/04/2023]
Abstract
The mechanism of the effect of reducing sugar chain length and isomers on the allergenicity of Ara h 2 after glycation was investigated. Ara h 2 was more prone to glycation with ribose which had a short chain length. The glycation sites of Ara h 2 after glycation with galactose were higher than the glycation sites in galactose's isomers-Ara h 2 conjugates, which might be affected by the configuration differences at position C-4 and the small steric effects in terminal groups -CHO of galactose. Ara h 2-ribose conjugate had the lowest allergenicity, and glycation with galactose was more capable of reducing Ara h 2 allergenicity than its isomers. The results indicated that glycation with ribose caused conformational epitope destruction and linear epitope masking of Ara h 2 greatly. Furthermore, since the small steric effects of -CHO, galactose was more capable of reducing Ara h 2 allergenicity than fructose. This study will provide a theoretical basis for selecting appropriate reducing sugars and preparing hypoallergenic products containing peanuts.
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Affiliation(s)
- Ping Yang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Xumei Wang
- College of Health, Jiangxi Normal University, Nanchang, Jiangxi 330022, China; National R&D Center of Freshwater Fish Processing and Engineering Research Center of Freshwater Fish High-value Utilization of Jiangxi Province, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Hui Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China.
| | - Yueming Hu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Pingwei Wen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Zongcai Tu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China; National R&D Center of Freshwater Fish Processing and Engineering Research Center of Freshwater Fish High-value Utilization of Jiangxi Province, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
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