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Zou W, Fu Z, Guo X, Yao L, Hong H, Luo Y, Tan Y. Whey Protein Hydrolysate Exerts Anti-Inflammatory Effects to Alleviate Dextran Sodium Sulfate (DSS)-Induced Colitis via Microbiome Restoration. Nutrients 2023; 15:4393. [PMID: 37892468 PMCID: PMC10610201 DOI: 10.3390/nu15204393] [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: 09/26/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Whey protein hydrolysate (WPH) has been shown to have a variety of bioactivities. This study aimed to investigate the preventive effect of WPH on dextran sodium sulfate (DSS)-induced colitis in C57BL/6J mice. The results indicated that WPH intervention for 37 days was effective in delaying the development of colonic inflammation, and high doses of WPH significantly inhibited weight loss (9.16%, n = 8, p < 0.05), protected the colonic mucosal layer, and significantly reduced the levels of inflammatory factors TNF-α, IL-6, and IL-1β in mice with colitis (n = 8, p < 0.05). In addition, WPH intervention was able to up-regulate the short-chain fatty acids secretion and restore the gut microbiome imbalance in mice with colitis. Notably, high-dose WPH intervention increased the relative abundance of norank_f_Muribaculaceae by 1.52-fold and decreased the relative abundance of Romboutsia and Enterobacter by 3.77-fold and 2.45-fold, respectively, compared with the Model group. WPH intervention protected colitis mice mainly by reversing the microbiome imbalance and regulating the major histocompatibility complex (MHC) class I pathway. This study showed that WPH has anti-inflammatory activity and a promising colitis management future.
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Affiliation(s)
- Wenrong Zou
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.Z.); (Z.F.); (H.H.); (Y.L.)
| | - Zixin Fu
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.Z.); (Z.F.); (H.H.); (Y.L.)
| | - Xiaohong Guo
- Department of Product and Development, Hebei Dongkang Dairy Co., Ltd., Shijiazhuang 052165, China; (X.G.); (L.Y.)
| | - Lei Yao
- Department of Product and Development, Hebei Dongkang Dairy Co., Ltd., Shijiazhuang 052165, China; (X.G.); (L.Y.)
| | - Hui Hong
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.Z.); (Z.F.); (H.H.); (Y.L.)
| | - Yongkang Luo
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.Z.); (Z.F.); (H.H.); (Y.L.)
| | - Yuqing Tan
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.Z.); (Z.F.); (H.H.); (Y.L.)
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Apcher S, Tovar-Fernadez M, Ducellier S, Thermou A, Nascimento M, Sroka E, Fahraeus R. mRNA translation from an antigen presentation perspective: A tribute to the works of Nilabh Shastri. Mol Immunol 2021; 141:305-308. [PMID: 34920325 DOI: 10.1016/j.molimm.2021.12.010] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/04/2021] [Accepted: 12/07/2021] [Indexed: 10/19/2022]
Abstract
The field of mRNA translation has witnessed an impressive expansion in the last decade. The once standard model of translation initiation has undergone, and is still undergoing, a major overhaul, partly due to more recent technical advancements detailing, for example, initiation at non-AUG codons. However, some of the pioneering works in this area have come from immunology and more precisely from the field of antigen presentation to the major histocompatibility class I (MHC-I) pathway. Despite early innovative studies from the lab of Nilabh Shastri demonstrating alternative mRNA translation initiation as a source for MHC-I peptide substrates, the mRNA translation field did not include these into their models. It was not until the introduction of the ribo-sequence technique that the extent of non-canonical translation initiation became widely acknowledged. The detection of peptides on MHC-I molecules by CD8 + T cells is extremely sensitive, making this a superior model system for studying alternative mRNA translation initiation from specific mRNAs. In view of this, we give a brief history on alternative initiation from an immunology perspective and its fundamental role in allowing the immune system to distinguish self from non-self and at the same time pay tribute to the works of Nilabh Shastri.
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Affiliation(s)
- Sebastien Apcher
- Université Paris-Saclay, Institut Gustave Roussy, Inserm UMR1015, Immunologie des tumeurs et Immunothérapie contre le cancer, 94805, Villejuif, France.
| | - Maria Tovar-Fernadez
- ICCVS, University of Gdańsk, Science, ul. Wita Stwosza 63, 80-308, Gdańsk, Poland
| | - Sarah Ducellier
- Université Paris-Saclay, Institut Gustave Roussy, Inserm UMR1015, Immunologie des tumeurs et Immunothérapie contre le cancer, 94805, Villejuif, France
| | - Aikaterini Thermou
- ICCVS, University of Gdańsk, Science, ul. Wita Stwosza 63, 80-308, Gdańsk, Poland
| | - Megane Nascimento
- Université Paris-Saclay, Institut Gustave Roussy, Inserm UMR1015, Immunologie des tumeurs et Immunothérapie contre le cancer, 94805, Villejuif, France
| | - Ewa Sroka
- ICCVS, University of Gdańsk, Science, ul. Wita Stwosza 63, 80-308, Gdańsk, Poland
| | - Robin Fahraeus
- ICCVS, University of Gdańsk, Science, ul. Wita Stwosza 63, 80-308, Gdańsk, Poland; Inserm UMRS1131, Institut de Génétique Moléculaire, Université Paris 7, Hôpital St. Louis, F-75010, Paris, France; RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 65653, Brno, Czech Republic; Department of Medical Biosciences, Building 6M, Umeå University, 901 85, Umeå, Sweden.
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McConnell SC, Hernandez KM, Wcisel DJ, Kettleborough RN, Stemple DL, Yoder JA, Andrade J, de Jong JL. Alternative haplotypes of antigen processing genes in zebrafish diverged early in vertebrate evolution. Proc Natl Acad Sci U S A 2016; 113:E5014-23. [PMID: 27493218 DOI: 10.1073/pnas.1607602113] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Antigen processing and presentation genes found within the MHC are among the most highly polymorphic genes of vertebrate genomes, providing populations with diverse immune responses to a wide array of pathogens. Here, we describe transcriptome, exome, and whole-genome sequencing of clonal zebrafish, uncovering the most extensive diversity within the antigen processing and presentation genes of any species yet examined. Our CG2 clonal zebrafish assembly provides genomic context within a remarkably divergent haplotype of the core MHC region on chromosome 19 for six expressed genes not found in the zebrafish reference genome: mhc1uga, proteasome-β 9b (psmb9b), psmb8f, and previously unknown genes psmb13b, tap2d, and tap2e We identify ancient lineages for Psmb13 within a proteasome branch previously thought to be monomorphic and provide evidence of substantial lineage diversity within each of three major trifurcations of catalytic-type proteasome subunits in vertebrates: Psmb5/Psmb8/Psmb11, Psmb6/Psmb9/Psmb12, and Psmb7/Psmb10/Psmb13. Strikingly, nearby tap2 and MHC class I genes also retain ancient sequence lineages, indicating that alternative lineages may have been preserved throughout the entire MHC pathway since early diversification of the adaptive immune system ∼500 Mya. Furthermore, polymorphisms within the three MHC pathway steps (antigen cleavage, transport, and presentation) are each predicted to alter peptide specificity. Lastly, comparative analysis shows that antigen processing gene diversity is far more extensive than previously realized (with ancient coelacanth psmb8 lineages, shark psmb13, and tap2t and psmb10 outside the teleost MHC), implying distinct immune functions and conserved roles in shaping MHC pathway evolution throughout vertebrates.
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