1
|
Xie CL, Xiao HX, Song PF, Liu QM, Wei H, Wu L, Zhu GH, Liu GM, Zhang Y, Wang P, Yang XW. Lead Optimization of Butyrolactone I as an Orally Bioavailable Antiallergic Agent Targeting FcγRIIB. J Med Chem 2024. [PMID: 38640354 DOI: 10.1021/acs.jmedchem.4c00354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
Food allergy (FA) poses a growing global food safety concern, yet no effective cure exists in clinics. Previously, we discovered a potent antifood allergy compound, butyrolactone I (BTL-I, 1), from the deep sea. Unfortunately, it has a very low exposure and poor pharmacokinetic (PK) profile in rats. Therefore, a series of structural optimizations toward the metabolic pathways of BTL-I were conducted to provide 18 derives (2-19). Among them, BTL-MK (19) showed superior antiallergic activity and favorable pharmacokinetics compared to BTL-I, being twice as potent with a clearance (CL) rate of only 0.5% that of BTL-I. By oral administration, Cmax and area under the concentration-time curve (AUC0-∞) were 565 and 204 times higher than those of BTL-I, respectively. These findings suggest that butyrolactone methyl ketone (BTL-BK) could serve as a drug candidate for the treatment of FAs and offer valuable insights into optimizing the druggability of lead compounds.
Collapse
Affiliation(s)
- Chun-Lan Xie
- School of Pharmacy, Hainan Medical University, Hainan Academy of Medical Sciences, No. 3 Xueyuan Road, Haikou 571199, China
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian 361005, China
| | - Hong-Xiu Xiao
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian 361005, China
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, iCHEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Pei-Fang Song
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Qing-Mei Liu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021, China
| | - Haoxiang Wei
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, iCHEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Liang Wu
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Guang-Hao Zhu
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Guang-Ming Liu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021, China
| | - Yandong Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, iCHEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Ping Wang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xian-Wen Yang
- School of Pharmacy, Hainan Medical University, Hainan Academy of Medical Sciences, No. 3 Xueyuan Road, Haikou 571199, China
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian 361005, China
| |
Collapse
|
2
|
Alemayehu B, Mekonnen B, Addisu A, Asres A. Effects of household vectors on child health and its determinants in southwest, Ethiopia correspondence analysis. Front Public Health 2024; 12:1341422. [PMID: 38510359 PMCID: PMC10951389 DOI: 10.3389/fpubh.2024.1341422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/27/2024] [Indexed: 03/22/2024] Open
Abstract
Background Household vectors transmit pathogens from one child to another. This study aimed to investigate the prevalence and determinants of household vectors on child health. Methods A community-based cross-sectional study design was conducted, during which a total of 846 household data were collected using a pretested questionnaire and simple random sampling technique. The data was entered into EpiData3.4 and then exported to Stata 14 software for analysis. A multivariable logistic regression analysis was conducted to identify significant factors associated with household vectors that contribute child health problems. The correspondence analysis was used to determine statistically significant effects or associations between household vectors and child health problems, that was explained by the percentage of variance. Results This study revealed that the prevalence of household vector effects among children was 35.5% suchas itching, allergies, nuisances and aesthetically displeasing factors. Households with no formal education were significantly 36% less likely to be affected compared to their counterparts (AOR 0.64, 95% CI 0.41, 0.99). Housewives are significantly 2.21 times more likely to be bexposed to household vectors compared to government workers (AOR 2.21, 95% CI 1.23, 3.70). Caregivers who had limited awareness of household vectors were 98.6% less likely to be affected compared to their counterparts (AOR 0.014; 95% CI 0.01-0.04). Similarly, children from households that consumed less than 20 liters of water per individual were 1.45 times more likely to be at risk compared to children from households that consumed more water (AOR 1.45, 95% CI 1.02, 2.07). The infestations of household vectors were found to be statistically significant and were associated with the occurrence of child health problems. This significant association accounted for 86.8 percent of the explained variance. Conclusion Addressing the high burden of household vectors on child health requires interventions that target informal education, limited access to information, and inadequate access to safe water. Implementing effective vector control measures is crucial to reduce the incidence of vector-borne diseases among children.
Collapse
Affiliation(s)
- Bezuayehu Alemayehu
- Department of Environmental Health, Mizan Tepi University Ethiopia, Mīzan Teferī, Ethiopia
| | - Besufekad Mekonnen
- Department of Environmental Health, Mizan Tepi University Ethiopia, Mīzan Teferī, Ethiopia
| | - Abebaw Addisu
- Department of Environmental Health, Mizan Tepi University Ethiopia, Mīzan Teferī, Ethiopia
| | - Abyot Asres
- Department of Public Health, Mizan Tepi University Ethiopia, Mīzan Teferī, Ethiopia
| |
Collapse
|
3
|
Shu E, Wang S, Kong X, Sun X, Yang Q, Chen Q, Niu B. Effects of Flavourzyme and Alkaline Protease Treatment on Structure and Allergenicity of Peanut Allergen Ara h 1. Food Technol Biotechnol 2024; 62:4-14. [PMID: 38601963 PMCID: PMC11002447 DOI: 10.17113/ftb.62.01.24.8064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 12/18/2023] [Indexed: 04/12/2024] Open
Abstract
Research background Peanut allergy poses a significant threat to human health due to the increased risk of long-term morbidity at low doses. Modifying protein structure to affect sensitization is a popular topic. Experimental approach In this study, the purified peanut allergen Ara h 1 was enzymatically hydrolysed using Flavourzyme, alkaline protease or a combination of both. The binding ability of Ara h 1 to antibodies, gene expression and secretion levels of the proinflammatory factors interleukin-5 and interleukin-6 in Caco-2 cells was measured. Changes in the secondary and tertiary structures before and after treatment with Ara h 1 were analysed by circular dichroism and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Results and conclusions The results indicated a decrease of the allergenicity and proinflammatory ability of Ara h 1. The evaluation showed that the Flavourzyme and alkaline protease treatments caused particle shortening and aggregation. The fluorescence emission peak increased by 3.4-fold after the combined treatment with both proteases. Additionally, the secondary structure underwent changes and the hydrophobicity also increased 8.95-fold after the combined treatment. Novelty and scientific contribution These findings partially uncover the mechanism of peanut sensitization and provide an effective theoretical basis for the development of a new method of peanut desensitization.
Collapse
Affiliation(s)
- Erlian Shu
- School of Life Sciences, Shanghai University, No. 99, Shangda Road, Baoshan District, 200444 Shanghai, PRChina
| | - Shuo Wang
- School of Life Sciences, Shanghai University, No. 99, Shangda Road, Baoshan District, 200444 Shanghai, PRChina
| | - Xiangxiang Kong
- School of Life Sciences, Shanghai University, No. 99, Shangda Road, Baoshan District, 200444 Shanghai, PRChina
| | - Xiaodong Sun
- School of Medicine, Shanghai University, No. 99, Shangda Road, Baoshan District, 200444 Shanghai, PRChina
| | - Qiaoling Yang
- School of Environmental and Chemical Engineering, Shanghai University, No. 99, Shangda Road, Baoshan District, 200444 Shanghai, PRChina
| | - Qin Chen
- School of Life Sciences, Shanghai University, No. 99, Shangda Road, Baoshan District, 200444 Shanghai, PRChina
| | - Bing Niu
- School of Life Sciences, Shanghai University, No. 99, Shangda Road, Baoshan District, 200444 Shanghai, PRChina
| |
Collapse
|
4
|
Wang Z, Wu Q, Guan M, Li Z, Pan W, Tang W. Investigation of gut microbiota changes and allergic inflammation of mice with milk protein-induced allergic enteritis. FEMS Microbiol Lett 2024; 371:fnad127. [PMID: 38066685 DOI: 10.1093/femsle/fnad127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/03/2023] [Accepted: 12/07/2023] [Indexed: 01/11/2024] Open
Abstract
This study aimed to investigate the changes of gut microbiota and allergic inflammation in mice with allergic enteritis caused by milk protein. In this study, female BALB\C mice in the whey protein (WP-sensitized) group were gavaged with WP and normal saline, the sham-sensitized group was given normal saline once a week for 5 weeks. One week later, the WP-sensitized mice were administered 60 mg β-lactoglobulin (BLG). The results showed that mice's body weight decreased, feces with loose and bloody, and systemic allergic reactions and ear swelling increased in the WP-sensitized group. The levels of WP-specific Ig, mMCP-1, calprotectin of feces, and inflammation-related factors in the WP-sensitized group were increased. WP-sensitized group intestine tissues were damaged severely and the expressions of ZO-1, Claudin-1, and Occludin reduced. The results of 16S rRNA sequencing showed that there were differences in operational taxonomic units (OUT) levels of gut microbes between the two groups, o_Clostridiales, c_Clostridia, and f_Lachnospiraceae were more abundant in the WP-sensitized group. In conclusion, the WP sensitization can induce the allergic inflammation, intestinal injury and intestinal barrier dysfunction in mice, and the gut microbes were also changed, which provided a reference for the treatment of WP-sensitized mice.
Collapse
Affiliation(s)
- Zhongmin Wang
- Department of Gastroenterology, Hangzhou Children's Hospital, Hangzhou, Zhejiang 310014, China
| | - Qiao Wu
- Department of Pediatrics, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang 310015, China
| | - Minchang Guan
- Department of Pediatrics, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang 310021, China
| | - Ze Li
- Department of Gastroenterology, Hangzhou Children's Hospital, Hangzhou, Zhejiang 310014, China
| | - Wei Pan
- Department of Gastroenterology, Hangzhou Children's Hospital, Hangzhou, Zhejiang 310014, China
| | - Weihong Tang
- Department of Gastroenterology, Hangzhou Children's Hospital, Hangzhou, Zhejiang 310014, China
| |
Collapse
|
5
|
Yuriev S, Rodinkova V, Mokin V, Varchuk I, Sharikadze O, Marushko Y, Halushko B, Kurchenko A. Molecular sensitization pattern to house dust mites is formed from the first years of life and includes group 1, 2, Der p 23, Der p 5, Der p 7 and Der p 21 allergens. Clin Mol Allergy 2023; 21:1. [PMID: 36737770 PMCID: PMC9898923 DOI: 10.1186/s12948-022-00182-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/28/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND As the process and nature of developing sensitivity to house dust mites (HDMs) remain not fully studied, our goal was to establish the pattern, nature and timeframe of house dust mite (HDM) sensitization development in patients in Ukraine as well as the period when treatment of such patients would be most effective. METHODS The data of the multiplex allergy test Alex2 was collected from 20,033 patients. To determine age specifics of sensitization, descriptive statistics were used. Bayesian Network analysis was used to build probabilistic patterns of individual sensitization. RESULTS Patients from Ukraine were most often sensitized to HDM allergens of group 1 (Der p 1, Der f 1) and group 2 (Der p 2, Der f 2) as well as to Der p 23 (55%). A considerable sensitivity to Der p 5, Der p 7 and Der p 21 allergens was also observed. The overall nature of sensitization to HDM allergens among the population of Ukraine is formed within the first year of life. By this time, there is a pronounced sensitization to HDM allergens of groups 1 and 2 as well as to Der p 23. Significance of sensitization to Der p 5, Der p 7 and Der p 21 allergens grows starting from the age of 3-6. Bayesian Network data analysis indicated the leading role of sensitization to Der p 1 and Der f 2. While developing the sensitivity to group 5 allergens, the leading role may belong to Der p 21 allergen. CONCLUSION The results obtained indicate the importance of determining the sensitization profile using the multi-component approach. A more detailed study of the optimal age for AIT prescription is required as the pattern of sensitization to HDMs is formed during the first year of life.
Collapse
Affiliation(s)
- Serhii Yuriev
- Medical Centre, DIVERO, Kiev, Ukraine ,grid.412081.eDepartment of Clinical Immunology and Allergology, Bohomolets National Medical University, Kiev, Ukraine
| | - Victoria Rodinkova
- grid.446037.2Department of Pharmacy, National Pirogov Memorial Medical University, 56, Pirogov Street, Vinnytsia, 21018 Ukraine
| | - Vitalii Mokin
- grid.446046.40000 0000 9939 744XDepartment of System Analysis and Information Technologies, Vinnytsia National Technical University, Vinnytsia, Ukraine
| | - Ilona Varchuk
- grid.446046.40000 0000 9939 744XDepartment of System Analysis and Information Technologies, Vinnytsia National Technical University, Vinnytsia, Ukraine
| | - Olena Sharikadze
- Paediatric Department, Shupyk National Healthcare University, Kiev, Ukraine
| | - Yuriy Marushko
- Department of Pediatrics of Postgraduate Education, O.O. Bohomolets Medical University, Kiev, Ukraine
| | - Bohdan Halushko
- Department of Pediatrics of Postgraduate Education, O.O. Bohomolets Medical University, Kiev, Ukraine
| | - Andrii Kurchenko
- grid.412081.eDepartment of Clinical Immunology and Allergology, Bohomolets National Medical University, Kiev, Ukraine
| |
Collapse
|
6
|
Parrón-Ballesteros J, Gordo RG, López-Rodríguez JC, Olmo N, Villalba M, Batanero E, Turnay J. Beyond allergic progression: From molecules to microbes as barrier modulators in the gut-lung axis functionality. FRONTIERS IN ALLERGY 2023; 4:1093800. [PMID: 36793545 PMCID: PMC9923236 DOI: 10.3389/falgy.2023.1093800] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/10/2023] [Indexed: 01/31/2023] Open
Abstract
The "epithelial barrier hypothesis" states that a barrier dysfunction can result in allergy development due to tolerance breakdown. This barrier alteration may come from the direct contact of epithelial and immune cells with the allergens, and indirectly, through deleterious effects caused by environmental changes triggered by industrialization, pollution, and changes in the lifestyle. Apart from their protective role, epithelial cells can respond to external factors secreting IL-25 IL-33, and TSLP, provoking the activation of ILC2 cells and a Th2-biased response. Several environmental agents that influence epithelial barrier function, such as allergenic proteases, food additives or certain xenobiotics are reviewed in this paper. In addition, dietary factors that influence the allergenic response in a positive or negative way will be also described here. Finally, we discuss how the gut microbiota, its composition, and microbe-derived metabolites, such as short-chain fatty acids, alter not only the gut but also the integrity of distant epithelial barriers, focusing this review on the gut-lung axis.
Collapse
Affiliation(s)
- Jorge Parrón-Ballesteros
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Rubén García Gordo
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Juan Carlos López-Rodríguez
- The Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom,The Francis Crick Institute, London, United Kingdom
| | - Nieves Olmo
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Mayte Villalba
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Eva Batanero
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Javier Turnay
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain,Correspondence: Javier Turnay
| |
Collapse
|