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Li C, Lu Y, Wang J, Liu B, Szeto IMY, Zhang W, Bi R, Duan S, Quan R, Wang X, Li Y, Xiong W, Sun J, Sun Y. Immunoregulation of bovine lactoferrin together with osteopontin promotes immune system development and maturation. Food Funct 2024; 15:866-880. [PMID: 38165790 DOI: 10.1039/d3fo03515h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
The immune system of infants is partly weak and immature, and supplementation of infant formula can be of vital importance to boost the development of the immune system. Lactoferrin (LF) and osteopontin (OPN) are essential proteins in human milk with immunoregulation function. An increasing number of studies indicate that proteins have interactions with each other in milk, and our previous study found that a ratio of LF : OPN at 1 : 5 (w/w, denoted as LOP) had a synergistic effect on intestinal barrier protection. It remains unknown whether LOP can also exert a stronger effect on immunoregulation. Hence, we used an in vitro model of LPS-induced macrophage inflammation and in vivo models of LPS-induced intestinal inflammation and early life development. We showed that LOP increased the secretion of the granulocyte-macrophage colony-stimulating factor (132%), stem cell factor (167%) and interleukin-3 (176%) in bone marrow cells, as well as thymosin (155%) and interleukin-10 (161%) in the thymus, more than LF or OPN alone during development, and inhibited changes in immune cells and cytokines during the LPS challenge. In addition, analysis of the components of digested proteins in vitro revealed that differentially expressed peptides may provide immunoregulation. Lastly, LOP increased the abundance of Rikenellaceae, Muribaculum, Faecalibaculum, and Elisenbergiella in the cecum content. These results imply that LOP is a potential immunomodifier for infants and offers a new theoretical basis for infant formula innovation.
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Affiliation(s)
- Chuangang Li
- Key Laboratory of Functional Dairy, Co-Constructed by Ministry of Education and Beijing Municipality, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
| | - Yao Lu
- Key Laboratory of Functional Dairy, Co-Constructed by Ministry of Education and Beijing Municipality, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
| | - Jian Wang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
| | - Biao Liu
- Key Laboratory of Functional Dairy, Co-Constructed by Ministry of Education and Beijing Municipality, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Inner Mongolia Yili Industrial Group Co. Ltd, Yili Maternal and Infant Nutrition Institute (YMINI), Beijing, China
| | - Ignatius Man-Yau Szeto
- Inner Mongolia Yili Industrial Group Co. Ltd, Yili Maternal and Infant Nutrition Institute (YMINI), Beijing, China
- Inner Mongolia Dairy Technology Research Institute Co. Ltd, Hohhot, China
- National Center of Technology Innovation for Dairy, Hohhot, China
| | - Wen Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
| | - Ran Bi
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
| | - Sufang Duan
- Inner Mongolia Yili Industrial Group Co. Ltd, Yili Maternal and Infant Nutrition Institute (YMINI), Beijing, China
- Inner Mongolia Dairy Technology Research Institute Co. Ltd, Hohhot, China
| | - Rui Quan
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
| | - Xuemin Wang
- Inner Mongolia Yili Industrial Group Co. Ltd, Yili Maternal and Infant Nutrition Institute (YMINI), Beijing, China
- Inner Mongolia Dairy Technology Research Institute Co. Ltd, Hohhot, China
| | - Yixuan Li
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
| | - Wei Xiong
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
- Food Laboratory of Zhongyuan, Luohe 462000, China
| | - Jiazeng Sun
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
| | - Yanan Sun
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. @
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