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Ji M, Ren L, Tian C, Zhuang X, Luan F. A Comparative Study of Nanobio Interaction of Zn-Doped CdTe Quantum Dots with Lactoferrin Using Different Spectroscopic Methods. Int J Mol Sci 2023; 24:ijms24119325. [PMID: 37298273 DOI: 10.3390/ijms24119325] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/21/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
In this paper, glutathione (GSH)-coated Zn-doped CdTe quantum dots (QDs) with different particle sizes were synthesized using the "reflow method", and the interaction mechanism between the two QDs and lactoferrin (LF) was investigated systemically with different spectroscopic methods. The steady-state fluorescence spectra showed that the LF formed a tight complex with the two QDs through static bursting and that the electrostatic force was the main driving force between the two LF-QDs systems. The complex generation process was found to be spontaneous (ΔG < 0) and accompanied by exothermic and increasing degrees of freedom (ΔH < 0, ΔS > 0) by using the temperature-dependent fluorescence spectroscopy. The critical transfer distance (R0) and donor-acceptor distance (r) of the two LF-QDs systems were obtained based on the fluorescence resonance energy transfer theory. In addition, it was observed that the QDs changed the secondary and tertiary structures of LF, leading to an increase in the hydrophobicity of LF. Further, the nano-effect of orange QDs on LF is much larger than that of green QDs. The above results provide a basis for metal-doped QDs with LF in safe nano-bio applications.
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Affiliation(s)
- Meng Ji
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Liwei Ren
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Chunyuan Tian
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xuming Zhuang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Feng Luan
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
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2
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Chen Y, Li M, Kong J, Liu J, Zhang Q. Molecular Interaction Mechanism and Preservative Effect of Lactone Sophorolipid and Lactoferrin/ β-Lactoglobulin Systems. Foods 2023; 12:foods12081561. [PMID: 37107357 PMCID: PMC10137667 DOI: 10.3390/foods12081561] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/02/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Multispectral and molecular docking methods were used to study the interaction mode and mechanism of two important components of whey proteins, lactoferrin (LF) and β-lactoglobulin (β-LG), and of a lactone sophorolipid (LSL) mixed system. The preservation effect of the mixed system on milk was also studied and compared. The results showed that the quenching mechanism of LSL on both β-LG and LF was static, but that the non-covalent complexes formed were the result of the different interacting forces: hydrogen bonds and the van der Waals force for the LSL-β-LG system, and electrostatic force for the LSL-LF system. The binding constants of LSL-β-LG and LSL-LF were all relatively small, and the interaction of LSL with β-LG was stronger than its interaction with LF. After adding β-LG, LF, or the mixed system with LSL to the milk, the stability of milk emulsion was effectively improved in all cases, while the preservative ability was effectively enhanced only by the addition of LF or LSL-LF. These results provide supportive data and a theoretical basis for enhancing the production of dairy products and other byproducts.
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Affiliation(s)
- Yanrong Chen
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Mingyuan Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Jing Kong
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Qian Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
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Li H, Yao Q, Li C, Fan L, Wu H, Zheng N, Wang J. Lactoferrin Inhibits the Development of T2D-Induced Colon Tumors by Regulating the NT5DC3/PI3K/AKT/mTOR Signaling Pathway. Foods 2022; 11:foods11243956. [PMID: 36553697 PMCID: PMC9777659 DOI: 10.3390/foods11243956] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022] Open
Abstract
Although increasing evidence shows the association between type 2 diabetes (T2D) and colorectal cancer, the related mechanism remains unclear. This study examined the suppressive effect of lactoferrin (LF) on the development of T2D-induced colon cancer. First, a co-cultured cell model consisting of NCM460 and HT29 cells was constructed to mimic the progression of T2D into colon cancer. The migration ability of NCM460 cells increased significantly (p < 0.05) after cultivation in HT29 cell medium (high glucose), while LF suppressed the progression of T2D to colon cancer by regulating the 5′-nucleotidase domain-containing 3 (NT5DC3) protein and the PI3K/AKT/mTOR signaling pathway in diabetic BALB/c mice and in cell models. A mutation assay of the phosphorylation site in the NT5DC3 protein and a surface plasmon resonance (SPR) protein binding test were performed to further ascertain a mechanistic link between LF and the NT5DC3 protein. The results indicated that LF specifically bound to the NT5DC3 protein to activate its phosphorylation at the Thr6 and Ser11 sites. Next, metabolic-specific staining and localization experiments further confirmed that LF acted as a phosphate donor for NT5DC3 protein phosphorylation by regulating the downstream metabolic pathway in T2D-induced colon tumors, which was specifically accomplished by controlling Thr6/Ser11 phosphorylation in NT5DC3 and its downstream effectors. These data on LF and NT5DC3 protein may suggest a new therapeutic strategy for cancer prevention, especially in T2D patients susceptible to colon cancer.
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Affiliation(s)
- Huiying Li
- Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
- Correspondence: (H.L.); (J.W.)
| | - Qianqian Yao
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Chaonan Li
- Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Linlin Fan
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Haoming Wu
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Nan Zheng
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jiaqi Wang
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Correspondence: (H.L.); (J.W.)
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Li C, Liu X, Huang Z, Zhai Y, Li H, Wu J. Lactoferrin Alleviates Lipopolysaccharide-Induced Infantile Intestinal Immune Barrier Damage by Regulating an ELAVL1-Related Signaling Pathway. Int J Mol Sci 2022; 23:ijms232213719. [PMID: 36430202 PMCID: PMC9696789 DOI: 10.3390/ijms232213719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
As the most important intestinal mucosal barrier of the main body, the innate immune barrier in intestinal tract plays especially pivotal roles in the overall health conditions of infants and young children; therefore, how to strengthen the innate immune barrier is pivotal. A variety of bioactivities of lactoferrin (LF) has been widely proved, including alleviating enteritis and inhibiting colon cancer; however, the effects of LF on intestinal immune barrier in infants and young children are still unclear, and the specific mechanism on how LF inhibits infantile enteritis by regulating immune signaling pathways is unrevealed. In the present study, we firstly performed pharmacokinetic analyses of LF in mice intestinal tissues, stomach tissues and blood, through different administration methods, to confirm the metabolic method of LF in mammals. Then we constructed in Vitro and in Vivo infantile intestinal immune barrier damage models utilizing lipopolysaccharide (LPS), and evaluated the effects of LF in alleviating LPS-induced intestinal immune barrier damage. Next, the related immune molecular mechanism on how LF exerted protective effects was investigated, through RNA-seq analyses of the mouse primary intestinal epithelial cells, and the specific genes were analyzed and screened out. Finally, the genes and their related immune pathway were validated in mRNA and protein levels; the portions of special immune cells (CD4+ T cells and CD8+ T cells) were also detected to further support our experimental results. Pharmacokinetic analyses demonstrated that the integrity of LF could reach mice stomach and intestine after oral gavage within 12 h, and the proper administration of LF should be the oral route. LF was proven to down-regulate the expression levels of inflammatory cytokines in both the primary intestinal epithelial cells and mice blood, especially LF without iron (Apo-LF), indicating LF alleviated infantile intestinal immune barrier damage induced by LPS. And through RNA-seq analyses of the mouse primary intestinal epithelial cells treated with LPS and LF, embryonic lethal abnormal vision Drosophila 1 (ELAVL1) was selected as one of the key genes, then the ELAVL1/PI3K/NF-κB pathway regulated by LF was verified to participate in the protection of infantile intestinal immune barrier damage in our study. Additionally, the ratio of blood CD4+/CD8+ T cells was significantly higher in the LF-treated mice than in the control mice, indicating that LF distinctly reinforced the overall immunity of infantile mice, further validating the strengthening bioactivity of LF on infantile intestinal immune barrier. In summary, LF was proven to alleviate LPS-induced intestinal immune barrier damage in young mice through regulating ELAVL1-related immune signaling pathways, which would expand current knowledge of the functions of bioactive proteins in foods within different research layers, as well as benefit preclinical and clinical researches in a long run.
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Affiliation(s)
- Chaonan Li
- Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100085, China
| | - Xinkui Liu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Zhihong Huang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yiyan Zhai
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Huiying Li
- Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100085, China
- Correspondence: (H.L.); (J.W.)
| | - Jiarui Wu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China
- Correspondence: (H.L.); (J.W.)
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Liu J, Xu D, Cao Y, Wang B, Wang S, Sun B. Modification of Physicochemical Properties by Heteroaggregation of Oppositely Charged Lactoferrin and Soybean Protein Isolate Coated DHA Emulsion Droplets. J Agric Food Chem 2018; 66:12306-12315. [PMID: 30346753 DOI: 10.1021/acs.jafc.8b02713] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 06/08/2023]
Abstract
In this study, the effect of heteroaggregation (HA) on the physicochemical stability and the formation of volatile substances of DHA emulsions was investigated. HA-DHA emulsions were produced by combination of lactoferrin (LF)-DHA and soy protein isolate (SPI)-DHA emulsions at pH 6.0. Zeta-potentials, droplet sizes, stability, and microstructures were measured as a function of different ratios of LF-DHA to SPI-DHA droplets. DHA oxidation of single and HA emulsions was determined through measurements of lipid hydroperoxides, thiobarbituric acid reactive substances, and the formation of volatile substances. LF-DHA to SPI-DHA droplets ratios of 5:5, 4:6, and 3:7 formed stable emulsions. The lowest zeta-potential, biggest droplet size, and optimum physical stability of heteroaggregated emulsion occurred at a 5:5 of LF-DHA to SPI-DHA droplet ratio. Microstructure behavior indicated that the HA emulsions (LF-DHA droplets/SPI-DHA droplets = 5:5) formed specific three-dimensional uniform networks. The formation of thiobarbituric acid reactive substances, lipid hydroperoxides, and volatile compounds including hexanal and ( E, E)-2,4-heptadienal decreased in HA compared to single emulsions. The results indicated that the physicochemical stability of DHA emulsions was enhanced and that the formation of volatile substances was inhibited by HA. It thus demonstrated the utilization of HA to improve the stability of bioactive compounds in emulsions.
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Affiliation(s)
- Jiawei Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), School of Food & Chemical Engineering, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety , Beijing Technology & Business University , Beijing , China
| | - Duoxia Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), School of Food & Chemical Engineering, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety , Beijing Technology & Business University , Beijing , China
| | - Yanping Cao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), School of Food & Chemical Engineering, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety , Beijing Technology & Business University , Beijing , China
| | - Bei Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), School of Food & Chemical Engineering, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety , Beijing Technology & Business University , Beijing , China
| | - Shaojia Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), School of Food & Chemical Engineering, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety , Beijing Technology & Business University , Beijing , China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), School of Food & Chemical Engineering, Beijing Engineering and Technology Research Center of Food Additives, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety , Beijing Technology & Business University , Beijing , China
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Tsou YA, Tung YT, Wu TF, Chang GRL, Chen HC, Lin CD, Lai CH, Chen HL, Chen CM. Lactoferrin interacts with SPLUNC1 to attenuate lipopolysaccharide-induced inflammation of human nasal epithelial cells via down-regulated MEK1/2-MAPK signaling. Biochem Cell Biol 2017; 95:394-399. [PMID: 28178421 DOI: 10.1139/bcb-2016-0047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The short palate, lung, and nasal epithelium clone 1 (SPLUNC1) protein is an important innate material in the upper airway, and lactoferrin (LF) aids the innate functions in humans. In this study, a nasal epithelial model was used to investigate how LF modulates SPLUNC1 to reduce the inflammatory process mediated by lipopolysaccharide (LPS). The inflammation of human RPMI-2650 cells was induced with LPS to evaluate SPLUNC1 expression after treating the cells with bovine LF (bLF). The interaction pathway between LF and SPLUNC1 in LPS-induced inflammation was further investigated. Our study reveals that the addition of bLF results in the recovery of SPLUNC1 expression in nasal epithelial cells under LPS-induced inflammation. MAPK is involved in the main pathway for the SPLUNC1 and bLF interaction. Decreased SPLUNC1 function could be recovered by addition of bLF. The MEK1/2-MAPK signaling pathway is crucial for the SPLUNC1 and bLF interaction. Therefore, LF could support SPLUNC1 in the innate immunity recovery process.
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Affiliation(s)
- Yung-An Tsou
- a Department of Life Sciences, and Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan.,b Department of Otolaryngology-Head and Neck Surgery, China Medical University and Hospital, Taichung 40402, Taiwan.,c Graduate Institute of Biomedicine Sciences, China Medical University, Taichung 40402, Taiwan
| | - Yu-Tong Tung
- a Department of Life Sciences, and Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
| | - Tsu-Fang Wu
- c Graduate Institute of Biomedicine Sciences, China Medical University, Taichung 40402, Taiwan
| | - Gary Ro-Lin Chang
- a Department of Life Sciences, and Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
| | - Han-Chien Chen
- a Department of Life Sciences, and Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
| | - Chia-Der Lin
- b Department of Otolaryngology-Head and Neck Surgery, China Medical University and Hospital, Taichung 40402, Taiwan.,c Graduate Institute of Biomedicine Sciences, China Medical University, Taichung 40402, Taiwan
| | - Chih-Ho Lai
- d Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan 33302, Taiwan
| | - Hsiao-Ling Chen
- e Department of Bioresources, Da-Yeh University, Changhua 51591, Taiwan
| | - Chuan-Mu Chen
- a Department of Life Sciences, and Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan.,f Rong-Hsing Translational Medicine Center, iEGG Center, National Chung Hsing University, Taichung 40227, Taiwan
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