1
|
Jeon D, Hill E, McNeel DG. Toll-like receptor agonists as cancer vaccine adjuvants. Hum Vaccin Immunother 2024; 20:2297453. [PMID: 38155525 PMCID: PMC10760790 DOI: 10.1080/21645515.2023.2297453] [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: 10/04/2023] [Accepted: 12/16/2023] [Indexed: 12/30/2023] Open
Abstract
Cancer immunotherapy has emerged as a promising strategy to treat cancer patients. Among the wide range of immunological approaches, cancer vaccines have been investigated to activate and expand tumor-reactive T cells. However, most cancer vaccines have not shown significant clinical benefit as monotherapies. This is likely due to the antigen targets of vaccines, "self" proteins to which there is tolerance, as well as to the immunosuppressive tumor microenvironment. To help circumvent immune tolerance and generate effective immune responses, adjuvants for cancer vaccines are necessary. One representative adjuvant family is Toll-Like receptor (TLR) agonists, synthetic molecules that stimulate TLRs. TLRs are the largest family of pattern recognition receptors (PRRs) that serve as the sensors of pathogens or cellular damage. They recognize conserved foreign molecules from pathogens or internal molecules from cellular damage and propel innate immune responses. When used with vaccines, activation of TLRs signals an innate damage response that can facilitate the development of a strong adaptive immune response against the target antigen. The ability of TLR agonists to modulate innate immune responses has positioned them to serve as adjuvants for vaccines targeting infectious diseases and cancers. This review provides a summary of various TLRs, including their expression patterns, their functions in the immune system, as well as their ligands and synthetic molecules developed as TLR agonists. In addition, it presents a comprehensive overview of recent strategies employing different TLR agonists as adjuvants in cancer vaccine development, both in pre-clinical models and ongoing clinical trials.
Collapse
Affiliation(s)
- Donghwan Jeon
- Department of Oncology, University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| | - Ethan Hill
- Department of Medicine, University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| | - Douglas G. McNeel
- Department of Medicine, University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| |
Collapse
|
2
|
Wang J, Gao M, Wang J, Zeng Y, Wang C, Cao X. LGG promotes activation of intestinal ILC3 through TLR2 receptor and inhibits salmonella typhimurium infection in mice. Virulence 2024; 15:2384553. [PMID: 39080852 PMCID: PMC11296546 DOI: 10.1080/21505594.2024.2384553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/03/2024] [Accepted: 07/10/2024] [Indexed: 08/04/2024] Open
Abstract
Salmonella is a foodborne pathogen that causes disruption of intestinal mucosal immunity, leading to acute gastroenteritis in the host. In this study, we found that Salmonella Typhimurium (STM) infection of the intestinal tract of mice led to a significant increase in the proportion of Lacticaseibacillus, while the secretion of IL-22 from type 3 innate lymphoid cells (ILC3) increased significantly. Feeding Lacticaseibacillus rhamnosus GG (LGG) effectively alleviated the infection of STM in the mouse intestines. TLR2-/- mice experiments found that TLR2-expressing dendritic cells (DCs) are crucial for LGG's activation of ILC3. Subsequent in vitro experiments showed that heat-killed LGG (HK-LGG) could promote DCs to secrete IL-23, which in turn further promotes the activation of ILC3 and the secretion of IL-22. Finally, organoid experiments further verified that IL-22 secreted by ILC3 can enhance the intestinal mucosal immune barrier and inhibit STM infection. This study demonstrates that oral administration of LGG is a potential method for inhibiting STM infection.
Collapse
Affiliation(s)
- Junhong Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Ming Gao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Jiarui Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Yan Zeng
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Chunfeng Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Xin Cao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
- Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
| |
Collapse
|
3
|
Wang Y, Liu C, Fang C, Peng Q, Qin W, Yan X, Zhang K. Engineered Cancer Nanovaccines: A New Frontier in Cancer Therapy. NANO-MICRO LETTERS 2024; 17:30. [PMID: 39347944 DOI: 10.1007/s40820-024-01533-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Accepted: 09/08/2024] [Indexed: 10/01/2024]
Abstract
Vaccinations are essential for preventing and treating disease, especially cancer nanovaccines, which have gained considerable interest recently for their strong anti-tumor immune capabilities. Vaccines can prompt the immune system to generate antibodies and activate various immune cells, leading to a response against tumor tissues and reducing the negative effects and recurrence risks of traditional chemotherapy and surgery. To enhance the flexibility and targeting of vaccines, nanovaccines utilize nanotechnology to encapsulate or carry antigens at the nanoscale level, enabling more controlled and precise drug delivery to enhance immune responses. Cancer nanovaccines function by encapsulating tumor-specific antigens or tumor-associated antigens within nanomaterials. The small size of these nanomaterials allows for precise targeting of T cells, dendritic cells, or cancer cells, thereby eliciting a more potent anti-tumor response. In this paper, we focus on the classification of carriers for cancer nanovaccines, the roles of different target cells, and clinically tested cancer nanovaccines, discussing strategies for effectively inducing cytotoxic T lymphocytes responses and optimizing antigen presentation, while also looking ahead to the translational challenges of moving from animal experiments to clinical trials.
Collapse
Affiliation(s)
- Yijie Wang
- Central Laboratory and Department of Medical Ultrasound, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, People's Republic of China
| | - Congrui Liu
- Central Laboratory and Department of Medical Ultrasound, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, People's Republic of China
| | - Chao Fang
- Central Laboratory and Department of Medical Ultrasound, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, People's Republic of China
| | - Qiuxia Peng
- Central Laboratory and Department of Medical Ultrasound, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, People's Republic of China
- Department of Stomatology and Central Laboratory, School of Medicine, Shanghai Tenth People's Hospital, Tongji University, NO. 301 Yan-Chang-Zhong Road, Shanghai, 200072, People's Republic of China
| | - Wen Qin
- Central Laboratory and Department of Medical Ultrasound, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, People's Republic of China
| | - Xuebing Yan
- Jiangsu Provincial Innovation and Practice Base for Postdoctors, Suining People's Hospital, Affiliated Hospital of Xuzhou Medical University, No.2, Bayi West Road, Suining, Xu Zhou, 221000, Jiangsu Province, People's Republic of China.
| | - Kun Zhang
- Central Laboratory and Department of Medical Ultrasound, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Second Section, First Ring Road, Chengdu, 610072, People's Republic of China.
| |
Collapse
|
4
|
Tian Y, Zhang H, Ge L, Wang Z, Wang P, Xiong S, Wang X, Hu Y. Toll-like Receptor Expression in Pelodiscus sinensis Reveals Differential Responses after Aeromonas hydrophila Infection. Genes (Basel) 2024; 15:1230. [PMID: 39336821 PMCID: PMC11431187 DOI: 10.3390/genes15091230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 09/13/2024] [Accepted: 09/19/2024] [Indexed: 09/30/2024] Open
Abstract
Background: Toll-like receptor (TLR), as an important pattern recognition receptor, is a bridge between non-specific immunity and specific immunity, and plays a vital role in the disease resistance of aquatic animals. However, the function of TLR in Pelodiscus sinensis is still unclear. Methods and Results: The sequence characteristics and homology of three TLRs (PsTLR2, PsTLR3 and PsTLR5) were determined in this investigation. Their annotation and orthologies were supported by phylogenetic analysis, functional domain prediction, and sequence similarity analysis. qPCR showed that the identified TLRs were expressed in all tissues, among the high expression of PsTLR5 in the brain and liver and the high expression of PsTLR2 and PsTLR3 in the liver. PsTLR2 mRNA expression increased 6.7-fold in the liver 12 h after Aeromonas hydrophila infection, while the mRNA expression of PsTLR3 was down-regulated by 0.29 times in liver and 0.31 times in spleen. The mRNA expression of PsTLR5 was significantly up-regulated in four immune tissues, and it was up-regulated by 122.8 times in the spleen after 72 h infection. Finally, the recombinant proteins of extracellular LRR domains of these three TLRs were obtained by prokaryotic expression technology, and the binding tests were performed to discover their ability of binding pathogenic microorganisms. Microbial binding test showed that rPsTLR2, rPsTLR3 and rPsTLR5 can combine A. hydrophila, Edwardsiella tarda, Vibrio parahaemolyticus, Staphylococcus aureus, Streptococcus agalactiae and Candida albicans, while rPsTLR3 can bind A. hydrophila, E. tarda, V. parahaemolyticus and C. albicans. Conclusions: Our findings suggested that TLRs may be crucial to turtles' innate immune response against microbes.
Collapse
Affiliation(s)
- Yu Tian
- College of Aquaculture, Hunan Agricultural University, Changsha 410128, China; (Y.T.); (H.Z.); (S.X.); (X.W.)
| | - Hui Zhang
- College of Aquaculture, Hunan Agricultural University, Changsha 410128, China; (Y.T.); (H.Z.); (S.X.); (X.W.)
| | - Lingrui Ge
- Department of Animal Science and Technology, Hunan Biological and Electromechanical Polytechnic, Changsha 410127, China; (L.G.); (Z.W.)
| | - Zi’ao Wang
- Department of Animal Science and Technology, Hunan Biological and Electromechanical Polytechnic, Changsha 410127, China; (L.G.); (Z.W.)
| | - Pei Wang
- College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China;
| | - Shuting Xiong
- College of Aquaculture, Hunan Agricultural University, Changsha 410128, China; (Y.T.); (H.Z.); (S.X.); (X.W.)
| | - Xiaoqing Wang
- College of Aquaculture, Hunan Agricultural University, Changsha 410128, China; (Y.T.); (H.Z.); (S.X.); (X.W.)
| | - Yazhou Hu
- College of Aquaculture, Hunan Agricultural University, Changsha 410128, China; (Y.T.); (H.Z.); (S.X.); (X.W.)
| |
Collapse
|
5
|
Thomas SM, Ankley LM, Conner KN, Rapp AW, McGee AP, LeSage F, Tanner CD, Vielma TE, Scheeres EC, Obar JJ, Olive AJ. TGFβ primes alveolar-like macrophages to induce type I IFN following TLR2 activation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.09.04.611226. [PMID: 39282428 PMCID: PMC11398362 DOI: 10.1101/2024.09.04.611226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 09/20/2024]
Abstract
Alveolar macrophages (AMs) are key mediators of lung function and are potential targets for therapies during respiratory infections. TGFβ is an important regulator of AM differentiation and maintenance, but how TGFβ directly modulates the innate immune responses of AMs remains unclear. This shortcoming prevents effective targeting of AMs to improve lung function in health and disease. Here we leveraged an optimized ex vivo AM model system, fetal-liver derived alveolar-like macrophages (FLAMs), to dissect the role of TGFβ in AMs. Using transcriptional analysis, we first globally defined how TGFβ regulates gene expression of resting FLAMs. We found that TGFβ maintains the baseline metabolic state of AMs by driving lipid metabolism through oxidative phosphorylation and restricting inflammation. To better understand inflammatory regulation in FLAMs, we next directly tested how TGFβ alters the response to TLR2 agonists. While both TGFβ (+) and TGFβ (-) FLAMs robustly responded to TLR2 agonists, we found an unexpected activation of type I interferon (IFN) responses in FLAMs and primary AMs in a TGFβ-dependent manner. Surprisingly, mitochondrial antiviral signaling protein and the interferon regulator factors 3 and 7 were required for IFN production by TLR2 agonists. Together, these data suggest that TGFβ modulates AM metabolic networks and innate immune signaling cascades to control inflammatory pathways in AMs.
Collapse
Affiliation(s)
- Sean M Thomas
- Department of Microbiology, Genetics, and Immunology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI
| | - Laurisa M Ankley
- Department of Microbiology, Genetics, and Immunology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI
| | - Kayla N Conner
- Department of Microbiology, Genetics, and Immunology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI
| | - Alexander W Rapp
- Department of Microbiology & Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | - Abigail P McGee
- Department of Microbiology & Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | - Francois LeSage
- Department of Microbiology & Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | - Christopher D Tanner
- Department of Microbiology & Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | - Taryn E Vielma
- Department of Microbiology, Genetics, and Immunology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI
| | - Eleanor C Scheeres
- Department of Microbiology, Genetics, and Immunology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI
| | - Joshua J Obar
- Department of Microbiology & Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | - Andrew J Olive
- Department of Microbiology, Genetics, and Immunology, College of Osteopathic Medicine, Michigan State University, East Lansing, MI
| |
Collapse
|
6
|
Yamasaki-Yashiki S, Shiraishi T, Gyobu M, Sasaki H, Kunisawa J, Yokota SI, Katakura Y. Immunostimulatory activity of lipoteichoic acid with three fatty acid residues derived from Limosilactobacillus antri JCM 15950 T. Appl Environ Microbiol 2024:e0119724. [PMID: 39240119 DOI: 10.1128/aem.01197-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Accepted: 08/02/2024] [Indexed: 09/07/2024] Open
Abstract
Some strains of lactic acid bacteria can regulate the host's intestinal immune system. Bacterial cells and membrane vesicles (MVs) of Limosilactobacillus antri JCM 15950T promote immunoglobulin A (IgA) production in murine Peyer's patch cells via toll-like receptor (TLR) 2. This study aimed to investigate the role of lipoteichoic acid (LTA), a ligand of TLR2, in the immunostimulatory activity of these bacterial cells and their MVs. LTA extracted from bacterial cells was purified through hydrophobic interaction chromatography and then divided into fractions LTA1 and LTA2 through anion-exchange chromatography. LTA1 induced greater interleukin (IL)-6 production from macrophage-like RAW264 cells than LTA2, and the induced IL-6 production was suppressed by TLR2 neutralization using an anti-TLR2 antibody. The LTAs in both fractions contained two hexose residues in the glycolipid anchor; however, LTA1 was particularly rich in triacyl LTA. The free hydroxy groups in the glycerol phosphate (GroP) repeating units were substituted by d-alanine (d-Ala) and α-glucose in LTA1, but only by α-glucose in LTA2. The dealanylation of LTA1 slightly suppressed IL-6 production in RAW264 cells, whereas deacylation almost completely suppressed IL-6 production. Furthermore, IL-6 production induced by dealanylated LTA1 was markedly higher than that induced by dealanylated LTA2. These results indicated that the critical moieties for the immunostimulatory activity of L. antri-derived LTA were the three fatty acid residues rather than the substitution with d-Ala in GroP. LTA was also detected in MVs, suggesting that the triacyl LTA, but not the diacyl LTA, translocated to the MVs and conferred immunostimulatory activity. IMPORTANCE Some lactic acid bacteria activate the host intestinal immune system via toll-like receptor (TLR) 2. Lipoteichoic acid (LTA) is a TLR2 ligand; however, the moieties of LTA that determine its immunostimulatory activity remain unclear because of the wide diversity of LTA partial structures. We found that Limosilactobacillus antri JCM 15950T has three types of LTAs (triacyl, diacyl, and monoacyl LTAs). Specifically, structural analysis of the LTAs revealed that triacyl LTA plays a crucial role in immunostimulation and that the fatty acid residues are essential for the activity. The three acyl residues are characteristic of LTAs from many lactic acid bacteria, and our findings can explain the immunostimulatory mechanisms widely exhibited by lactic acid bacteria. Furthermore, the immunostimulatory activity of membrane vesicles released by L. antri JCM 15950T is due to the transferred LTA, demonstrating a novel mechanism of membrane vesicle-mediated immunostimulation.
Collapse
Affiliation(s)
- Shino Yamasaki-Yashiki
- Department of Life Science and Biotechnology, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, Japan
- Laboratory of Vaccine Materials and Laboratory of Gut Environmental System, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health, and Nutrition, Ibaraki, Osaka, Japan
| | - Tsukasa Shiraishi
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan
| | - Mai Gyobu
- Department of Life Science and Biotechnology, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, Japan
| | - Haruna Sasaki
- Department of Life Science and Biotechnology, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials and Laboratory of Gut Environmental System, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health, and Nutrition, Ibaraki, Osaka, Japan
| | - Shin-Ichi Yokota
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan
| | - Yoshio Katakura
- Department of Life Science and Biotechnology, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, Japan
| |
Collapse
|
7
|
Kihal N, Archambault MJ, Babych M, Nazemi A, Bourgault S. Probing the molecular determinants of the activation of toll-like receptor 2/6 by amyloid nanostructures through directed peptide self-assembly. SOFT MATTER 2024. [PMID: 39225438 DOI: 10.1039/d4sm00638k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Amyloid fibrils are proteinaceous nanostructures known for their ability to activate the innate immune system, which has been recently exploited for their use as self-adjuvanted antigen delivery systems for vaccines. Among mechanisms of immunostimulation, the activation of the heterodimeric toll-like receptor 2/6 (TLR2/TLR6) by the cross-β-sheet quaternary conformation appears important. Nonetheless, the lack of control over the process of self-assembly and the polydispersity of the resulting supramolecular architectures make it challenging to elucidate the molecular basis of TLR2/TLR6 engagement by amyloid assemblies. In this context, we harnessed the effects of N- and C-terminal modifications of a short 10-mer β-peptide derived from the islet amyloid polypeptide (I10) to investigate the relationships between the morphology and physicochemical properties of amyloid assemblies and their TLR2/TLR6 activity. Chemical substitutions at the N- and C-termini of the I10 peptide, including addition of charged residues at the N-terminus and α-amidation of C-terminus, allowed the controlled formation of a diversity of architectures, including belt-like filaments, rigid nanorods as well as flat and twisted fibrils. These fully cytocompatible peptide nanostructures showed different potencies to activate TLR2/TLR6, which correlated with the charge exposed on the surface. These results further demonstrate the potent modulatory effect of N- and C-terminal electrostatic capping on the self-assembly of short synthetic β-peptides. This study also indicates that self-assembly into cross-β-sheet nanostructures is essential for the activation of the TLR2/TLR6 by amyloidogenic peptides, albeit the structural requirements of the engagement of this promiscuous immune receptor by the nanostructures remain challenging to precisely untangle.
Collapse
Affiliation(s)
- Nadjib Kihal
- Department of Chemistry, Université du Québec à Montréal. C.P.8888, Succursale Centre-Ville, Montréal, H3C 3P8, Canada.
- Quebec Network for Research on Protein Function, Engineering and Applications (PROTEO), Québec, Canada
- Quebec Centre for Advanced Materials, QCAM, Montreal, Canada
| | - Marie-Jeanne Archambault
- Department of Chemistry, Université du Québec à Montréal. C.P.8888, Succursale Centre-Ville, Montréal, H3C 3P8, Canada.
- Quebec Network for Research on Protein Function, Engineering and Applications (PROTEO), Québec, Canada
| | - Margaryta Babych
- Department of Chemistry, Université du Québec à Montréal. C.P.8888, Succursale Centre-Ville, Montréal, H3C 3P8, Canada.
- Quebec Network for Research on Protein Function, Engineering and Applications (PROTEO), Québec, Canada
| | - Ali Nazemi
- Department of Chemistry, Université du Québec à Montréal. C.P.8888, Succursale Centre-Ville, Montréal, H3C 3P8, Canada.
- Quebec Centre for Advanced Materials, QCAM, Montreal, Canada
| | - Steve Bourgault
- Department of Chemistry, Université du Québec à Montréal. C.P.8888, Succursale Centre-Ville, Montréal, H3C 3P8, Canada.
- Quebec Network for Research on Protein Function, Engineering and Applications (PROTEO), Québec, Canada
| |
Collapse
|
8
|
Song H, Zhao H, Wang W, Li S. Integration analysis of miRNA-mRNA uncovers the molecular immune mechanism of macrophage response to Aeromonas veronii infection. Microb Pathog 2024; 194:106820. [PMID: 39047803 DOI: 10.1016/j.micpath.2024.106820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 06/19/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
Macrophages are innate immunity cells which play pivotal roles in infectious immunity. Aeromonas veronii is a zoonotic agent capable of causing sepsis and poses a serious threat to public health. However, few studies have focused on miRNA-mRNA integration analysis to address the immune mechanisms of macrophage response to A. veronii infection. Herein, we characterized the immunophysiological, biochemical, and transcriptome changes of macrophage under A. veronii infection. We found that macrophages infected with A. veronii released large amounts of cytokines and triggered NLRP3-dependent pyroptosis. Subsequently, 603 differentially expressed miRNAs (DEMIs) and 3693 differentially expressed mRNAs (DEMs) were identified by RNA-seq analysis under A. veronii infection. Moreover, integrated analysis of miRNA-mRNA yielded 66 miRNA-target gene pairs composed of 41 DEMIs and 27 DEMs. We next identified the Toll-like receptor, NOD-like receptor, TNF and NF-κB pathways as necessary for macrophage to respond to A. veronii infection. miR-847 and miR-627 were involved in macrophage response to A. veronii infection by negatively regulating Pannexin-1 and thioredoxin interacting protein (TXNIP). Our findings elucidate the molecular mechanism of macrophage response to A. veronii infection at the miRNA level, providing many candidate miRNAs and mRNAs therapeutic targets for the prevention and treatment of A. veornii infectious diseases.
Collapse
Affiliation(s)
- Haichao Song
- Marine College, Shandong University, Weihai, Shandong Province, 264209, PR China
| | - Han Zhao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun, Jilin Province, 130118, PR China
| | - Wenfeng Wang
- Ziguang Technology Park Co., Ltd, Weihai, Shandong Provience, 264206, PR China
| | - Shu Li
- Marine College, Shandong University, Weihai, Shandong Province, 264209, PR China.
| |
Collapse
|
9
|
Li Y, Pacoste LC, Gu W, Thygesen SJ, Stacey KJ, Ve T, Kobe B, Xu H, Nanson JD. Microcrystal electron diffraction structure of Toll-like receptor 2 TIR-domain-nucleated MyD88 TIR-domain higher-order assembly. Acta Crystallogr D Struct Biol 2024; 80:699-712. [PMID: 39268708 PMCID: PMC11394124 DOI: 10.1107/s2059798324008210] [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: 03/20/2024] [Accepted: 08/20/2024] [Indexed: 09/15/2024] Open
Abstract
Eukaryotic TIR (Toll/interleukin-1 receptor protein) domains signal via TIR-TIR interactions, either by self-association or by interaction with other TIR domains. In mammals, TIR domains are found in Toll-like receptors (TLRs) and cytoplasmic adaptor proteins involved in pro-inflammatory signaling. Previous work revealed that the MAL TIR domain (MALTIR) nucleates the assembly of MyD88TIR into crystalline arrays in vitro. A microcrystal electron diffraction (MicroED) structure of the MyD88TIR assembly has previously been solved, revealing a two-stranded higher-order assembly of TIR domains. In this work, it is demonstrated that the TIR domain of TLR2, which is reported to signal as a heterodimer with either TLR1 or TLR6, induces the formation of crystalline higher-order assemblies of MyD88TIR in vitro, whereas TLR1TIR and TLR6TIR do not. Using an improved data-collection protocol, the MicroED structure of TLR2TIR-induced MyD88TIR microcrystals was determined at a higher resolution (2.85 Å) and with higher completeness (89%) compared with the previous structure of the MALTIR-induced MyD88TIR assembly. Both assemblies exhibit conformational differences in several areas that are important for signaling (for example the BB loop and CD loop) compared with their monomeric structures. These data suggest that TLR2TIR and MALTIR interact with MyD88 in an analogous manner during signaling, nucleating MyD88TIR assemblies unidirectionally.
Collapse
Affiliation(s)
- Y Li
- Institute of Molecular Bioscience, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - L C Pacoste
- Department of Materials and Environmental Chemistry, Stockholm University, Frescativägen 8, 114 18 Stockholm, Sweden
| | - W Gu
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - S J Thygesen
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - K J Stacey
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - T Ve
- Institute for Glycomics, Griffith University, Southport, Queensland 4215, Australia
| | - B Kobe
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - H Xu
- Department of Materials and Environmental Chemistry, Stockholm University, Frescativägen 8, 114 18 Stockholm, Sweden
| | - J D Nanson
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| |
Collapse
|
10
|
Bennstein SB, Uhrberg M. Circulating innate lymphoid cells (cILCs): Unconventional lymphocytes with hidden talents. J Allergy Clin Immunol 2024; 154:523-536. [PMID: 39046403 DOI: 10.1016/j.jaci.2024.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/16/2024] [Accepted: 06/28/2024] [Indexed: 07/25/2024]
Abstract
Innate lymphoid cells (ILCs) are a group of lymphocytes that are devoid of antigen-specific receptors and are mainly found in tissues. The subtypes ILC1, 2, and 3 mirror T-cell functionality in terms of cytokine production and expression of key transcription factors. Although the majority of ILCs are found in tissue (tILCs), they have also been described within the circulation (cILCs). As a result of their better accessibility and putative prognostic value, human cILCs are getting more and more attention in clinical research. However, cILCs are in many aspects functionally distinct from their tILC counterparts. In fact, from the 3 ILC subsets found within the circulation, only for cILC2s could a clear functional correspondence to their tissue counterparts be established. Indeed, cILC2s are emerging as a major driver of allergic reactions with a particular role in asthma. In contrast, recent studies revealed that cILC1s and cILC3s are predominantly in an immature state and constitute progenitors for natural killer cells and ILCs, respectively. We provide an overview about the phenotype and function of the different cILC subtypes compared to tILCs in health and disease, including transcriptomic signatures, frequency dynamics, and potential clinical value. Furthermore, we will highlight the dynamics of the NKp44+ ILC3 subset, which emerges as prognostic marker in peripheral blood for inflammatory bowel disease and leukemia.
Collapse
Affiliation(s)
- Sabrina B Bennstein
- Institute for Transplantation Diagnostics and Cell Therapeutics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany; Institute of Immunology, Faculty of Medicine, RWTH Aachen University, Aachen, Germany.
| | - Markus Uhrberg
- Institute for Transplantation Diagnostics and Cell Therapeutics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
| |
Collapse
|
11
|
Qi X, Xiao Y, Zhang X, Zhu Z, Zhang H, Wei J, Zhao Z, Li J, Chen T. Probiotics suppress LL37 generated rosacea-like skin inflammation by modulating the TLR2/MyD88/NF-κB signaling pathway. Food Funct 2024; 15:8916-8934. [PMID: 39143863 DOI: 10.1039/d4fo03083d] [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: 08/16/2024]
Abstract
Rosacea, a chronic inflammatory dermatological condition, is characterized by facial erythema and pustules. Recent investigations have delved into the interplay between the gut microbiota and rosacea pathogenesis, unveiling promising avenues for therapeutic intervention. In this study, we screened and isolated strains Ligilactobacillus salivarius 23-006 and Lacticaseibacillus paracasei 23-008 from the feces of healthy volunteers and evaluated the intervention effects of probiotics on rosacea by constructing an LL37 induced rosacea-like mouse model. Our results showed that both L. salivarius 23-006 and L. paracasei 23-008 were probiotic strains with favourable properties. In specific, we observed that both L. salivarius 23-006 and L. paracasei 23-008 alleviated skin lesions, reduced skin inflammatory infiltrates, and decreased the expression of inflammatory factors in mice, with the combination of L. salivarius 23-006 and L. paracasei 23-008 having the most significant effect. Moreover, the combination of strains reduced the expression of cathelicidin LL37 and rosacea-associated factors by inhibiting the TLR2/MyD88/NF-κB pathway. The 16S rRNA analysis showed that the combination enhanced the intestinal barrier, restored intestinal microbiota homeostasis, and up-regulated the abundance of Lactobacillus while down-regulating the abundance of Coprococcus and Oscillospira. We also explored the effects of postbiotics of L. salivarius 23-006 and L. paracasei 23-008 on rosacea. While postbiotics could also ameliorate the rosacea-like phenotype in mice via the TLR2/MyD88/NF-κB pathway, the effects were not as pronounced as those observed with probiotic treatment. However, the postbiotics still enhanced the intestinal barrier, up-regulated the Lactobacillus abundance, and modulated the intestinal microbiota. In conclusion, our study revealed that L. salivarius 23-006 and L. paracasei 23-008 improved rosacea by regulating the TLR2/MyD88/NF-κB pathway and intestinal microbiota, providing a theoretical basis for the treatment of rosacea.
Collapse
Affiliation(s)
- Xinyue Qi
- School of Life Sciences, Nanchang University, Nanchang, China.
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Yiran Xiao
- Queen Mary School, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xinfeng Zhang
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Zhenlin Zhu
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Hongyan Zhang
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Jing Wei
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Zhixiang Zhao
- Department of Dermatology, Xiangya Hospital of Central South University, Changsha, China.
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital of Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital of Central South University, Changsha, China.
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital of Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, China
| | - Tingtao Chen
- School of Life Sciences, Nanchang University, Nanchang, China.
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Jiangxi Medical College, Nanchang University, Nanchang, China
| |
Collapse
|
12
|
Jia H, Luo Z, Jing R, Yao B, Lv T, Zheng H, Wang X. The Development of a Highly Potent and Selective Human Toll-like Receptor 2 Agonist: Synthesis and Biological Evaluation of CaLGL-1 and Its Derivatives. J Med Chem 2024; 67:12932-12944. [PMID: 38996365 DOI: 10.1021/acs.jmedchem.4c00886] [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: 07/14/2024]
Abstract
Toll-like receptor 2 (TLR2) plays a crucial role in detecting microbial pathogen-associated molecular patterns, offering potential applications as an adjuvant for vaccines and antitumor therapies. Here, we present the gram-scale synthesis of CaLGL-1 and its derivatives, natural products known for activating mouse TLR2 (EC50 = 3.2 μM). This synthesis involves a streamlined six-step reaction sequence utilizing oxidant-promoted acetalization, effectively preserving the acid-sensitive glycosidic bond for maintaining the compounds' functional integrity. Our structure-activity relationship studies identified R-7d as a potent human TLR2 activator. It demonstrated subnanomolar activity (EC50 = 116 pM) in human THP-1 cells, comparable to that of diprovocim (EC50 = 110 pM). Experiments revealed that R-7d enhances NF-kB promoter activation through TLR2/TLR1 heterodimers rather than TLR2/TLR6. The discovery of R-7d as a robust human TLR2 agonist opens up new possibilities for combination therapies.
Collapse
Affiliation(s)
- Hongbin Jia
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry and School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
| | - Zhikuan Luo
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry and School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730000, P.R. China
| | - Ruijun Jing
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry and School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
| | - Bowen Yao
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry and School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
| | - Tinghong Lv
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry and School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
| | - Haixue Zheng
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730000, P.R. China
- Gansu Province Research Center for Basic Disciplines of Biology, Lanzhou 730000, P.R. China
| | - Xiaolei Wang
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry and School of Pharmacy, Lanzhou University, Lanzhou 730000, P.R. China
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730000, P.R. China
| |
Collapse
|
13
|
Sengprasert P, Waitayangkoon P, Kamenkit O, Sawatpanich A, Chaichana T, Wongphoom J, Ngarmukos S, Taweevisit M, Lotinun S, Tumwasorn S, Tanavalee A, Reantragoon R. Catabolic mediators from TLR2-mediated proteoglycan aggrecan peptide-stimulated chondrocytes are reduced by Lactobacillus-conditioned media. Sci Rep 2024; 14:18043. [PMID: 39103466 PMCID: PMC11300663 DOI: 10.1038/s41598-024-68404-9] [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: 09/20/2023] [Accepted: 07/23/2024] [Indexed: 08/07/2024] Open
Abstract
In osteoarthritis (OA), extracellular matrix (ECM) digestion by cartilage-degrading enzymes drives cartilage destruction and generates ECM fragments, such as proteoglycan aggrecan (PG) peptides. PG peptides have been shown to induce immunological functions of chondrocytes. However, the role of PG peptides in stimulating catabolic mediators from chondrocytes has not been investigated. Therefore, we aim to determine the effects and its mechanism by which PG peptides induce chondrocytes to produce catabolic mediators in OA. Human chondrocytes were stimulated with IFNγ and various PG peptides either (i) with or (ii) without TLR2 blockade or (iii) with Lactobacillus species-conditioned medium (LCM), a genus of bacteria with anti-inflammatory properties. Transcriptomic analysis, cartilage-degrading enzyme production and TLR2-intracellular signaling activation were investigated. Chondrocytes treated with PG peptides p16-31 and p263-280 increased expression levels of genes associated with chondrocyte hypertrophy, cartilage degradation and proteolytic enzyme production. TLR2 downstream signaling proteins (STAT3, IkBα and MAPK9) were significantly phosphorylated in p263-280 peptide-stimulated chondrocytes. MMP-1 and ADAMTS-4 were significantly reduced in p263-280 peptides-treated condition with TLR2 blockade or LCM treatment. Phosphorylation levels of IkBa, ERK1/2 and MAPK9 were significantly decreased with TLR2 blockade, but only phosphorylation levels of MAPK9 was significantly decreased with LCM treatment. Our study showed that PG peptide stimulation via TLR2 induced cartilage-degrading enzyme production via activation of MAPK, NFκB and STAT3 pathways.
Collapse
Affiliation(s)
- Panjana Sengprasert
- Immunology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Bangkok, 10330, Thailand
| | - Palapun Waitayangkoon
- Immunology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Bangkok, 10330, Thailand
| | - Ousakorn Kamenkit
- Medical Microbiology Interdisciplinary Program, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Ajcharaporn Sawatpanich
- Bacteriology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Thiamjit Chaichana
- Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Jutamas Wongphoom
- Department of Pathology, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Srihatach Ngarmukos
- Department of Orthopedics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Biologics for Knee Osteoarthritis Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Mana Taweevisit
- Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sutada Lotinun
- Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Skeletal Disorders and Enzyme Reaction Mechanism, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Somying Tumwasorn
- Bacteriology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Aree Tanavalee
- Department of Orthopedics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Biologics for Knee Osteoarthritis Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Rangsima Reantragoon
- Immunology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Bangkok, 10330, Thailand.
- Center of Excellence in Immunology and Immune-Mediated Diseases, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
- Center of Excellence in Skeletal Disorders and Enzyme Reaction Mechanism, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
| |
Collapse
|
14
|
Nanda S, Zafar MA, Lamba T, Malik JA, Khan MA, Bhardwaj P, Bisht B, Ghadi R, Kaur G, Bhalla V, Owais M, Jain S, Sehrawat S, Agrewala JN. A novel strategy to elicit enduring anti-morphine immunity and relief from addiction by targeting Acr1 protein nano vaccine through TLR-2 to dendritic cells. Int J Biol Macromol 2024; 274:133188. [PMID: 38880456 DOI: 10.1016/j.ijbiomac.2024.133188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/11/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Morphine addiction poses a significant challenge to global healthcare. Current opioid substitution therapies, such as buprenorphine, naloxone and methadone are effective but often lead to dependence. Thus, exploring alternative treatments for opioid addiction is crucial. We have developed a novel vaccine that presents morphine and Pam3Cys (a TLR-2 agonist) on the surface of Acr1 nanoparticles. This vaccine has self-adjuvant properties and targets TLR-2 receptors on antigen-presenting cells, particularly dendritic cells. Our vaccination strategy promotes the proliferation and differentiation of morphine-specific B-cells and Acr1-reactive CD4 T-cells. Additionally, the vaccine elicited the production of high-affinity anti-morphine antibodies, effectively eliminating morphine from the bloodstream and brain in mice. It also reduced the expression of addiction-associated μ-opioid receptor and dopamine genes. The significant increase in memory CD4 T-cells and B-cells indicates the vaccine's ability to induce long-lasting immunity against morphine. This vaccine holds promise as a prophylactic measure against morphine addiction.
Collapse
Affiliation(s)
- Sidhanta Nanda
- Immunology Laboratory, Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, India
| | - Mohammad Adeel Zafar
- Immunology Laboratory, Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, India
| | - Taruna Lamba
- Immunology Laboratory, Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, India
| | - Jonaid Ahmad Malik
- Immunology Laboratory, Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, India
| | - Mohammad Affan Khan
- Immunology Laboratory, Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, India
| | - Priya Bhardwaj
- CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Bhawana Bisht
- CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Rohan Ghadi
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Mohali, India
| | - Gurpreet Kaur
- Department of Biotechnology, Chandigarh Group of Colleges, Mohali, India
| | | | - Mohammad Owais
- Department of Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Sanyog Jain
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Mohali, India
| | - Sharvan Sehrawat
- Department of Biological Sciences, Indian Institute of Science Education and Research, Mohali, India
| | - Javed N Agrewala
- Immunology Laboratory, Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, India.
| |
Collapse
|
15
|
Waltimo E, Eray M, Mäkitie A, Haglund C, Atula T, Hagström J. Toll-like receptors 2 and 4, and bacterial proteins in IgG4-related sialadenitis, other types of chronic sialadenitis and sialolithiasis. J Oral Microbiol 2024; 16:2382633. [PMID: 39055281 PMCID: PMC11271128 DOI: 10.1080/20002297.2024.2382633] [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: 01/23/2024] [Revised: 06/14/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024] Open
Abstract
Background The association of chronic sclerosing sialadenitis and IgG4-related disease (IgG4-RD) has resulted in the more frequent identification of IgG4-positivity in submandibular gland inflammations, also uncovering IgG4 overexpression in nonspecific inflammations. These findings lead us to hypothesise that IgG4-positive sialadenitis represents a continuous inflammatory process overlapping histologically with IgG4-RD, possibly differing in aetiology. However, the antigen underlying IgG4 overexpression in IgG4-positive sialadenitis and IgG4-RD remains unknown. Materials and methods Here, we investigated toll-like receptor (TLR) - mediated bacterial inflammation in submandibular gland tissues of patients with IgG4-positive and IgG4-negative chronic inflammatory lesions of the submandibular gland (n = 61), with noninflamed submandibular glands serving as controls (n = 4). Utilising immunohistochemistry, we assessed the expression of TLR2 and TLR4, lipopolysaccharide (LPS) and the P. gingivalis-specific antigen gingipain R1. Results We observed TLR2- and TLR4-immunopositivity in 64 (98%) samples. However, TLR2 and TLR4 staining intensity was significantly stronger in the IgG4-positive group. LPS- and gingipain R1 immunopositivity were observed in 56 (86%) and 58 (89%) samples, respectively. LPS-positivity localised exclusively in mast cell-like cells, while gingipain R1-positivity remained scarce. Conclusions A stronger TLR2 or TLR4 expression in IgG4-positive sialadenitis may indicate a tissue-related factor underlying this form of chronic sialadenitis. LPS- and P. gingivalis immunopositivity remained weak throughout this series. Thus, gram-negative bacteria may not represent pathogens underlying these forms of chronic sialadenitis.
Collapse
Affiliation(s)
- Elin Waltimo
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | - Mine Eray
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Antti Mäkitie
- Department of Otorhinolaryngology – Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Program in Systems Oncology, Faculty of Medicine, Helsinki, Helsinki, Finland
| | - Caj Haglund
- Research Programmes Unit, Translational Cancer Medicine, University of Helsinki, Helsinki, Finland
- Department of Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Timo Atula
- Department of Otorhinolaryngology – Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jaana Hagström
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programmes Unit, Translational Cancer Medicine, University of Helsinki, Helsinki, Finland
- Department of Oral Pathology and Radiology, University of Turku, Turku, Finland
| |
Collapse
|
16
|
Mun SJ, Cho E, Kim HK, Gil WJ, Yang CS. Enhancing acute inflammatory and sepsis treatment: superiority of membrane receptor blockade. Front Immunol 2024; 15:1424768. [PMID: 39081318 PMCID: PMC11286478 DOI: 10.3389/fimmu.2024.1424768] [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: 04/28/2024] [Accepted: 07/03/2024] [Indexed: 08/02/2024] Open
Abstract
Conditions such as acute pancreatitis, ulcerative colitis, delayed graft function and infections caused by a variety of microorganisms, including gram-positive and gram-negative organisms, increase the risk of sepsis and therefore mortality. Immune dysfunction is a characterization of sepsis, so timely and effective treatment strategies are needed. The conventional approaches, such as antibiotic-based treatments, face challenges such as antibiotic resistance, and cytokine-based treatments have shown limited efficacy. To address these limitations, a novel approach focusing on membrane receptors, the initiators of the inflammatory cascade, is proposed. Membrane receptors such as Toll-like receptors, interleukin-1 receptor, endothelial protein C receptor, μ-opioid receptor, triggering receptor expressed on myeloid cells 1, and G-protein coupled receptors play pivotal roles in the inflammatory response, offering opportunities for rapid regulation. Various membrane receptor blockade strategies have demonstrated efficacy in both preclinical and clinical studies. These membrane receptor blockades act as early stage inflammation modulators, providing faster responses compared to conventional therapies. Importantly, these blockers exhibit immunomodulatory capabilities without inducing complete immunosuppression. Finally, this review underscores the critical need for early intervention in acute inflammatory and infectious diseases, particularly those posing a risk of progressing to sepsis. And, exploring membrane receptor blockade as an adjunctive treatment for acute inflammatory and infectious diseases presents a promising avenue. These novel approaches, when combined with antibiotics, have the potential to enhance patient outcomes, particularly in conditions prone to sepsis, while minimizing risks associated with antibiotic resistance and immune suppression.
Collapse
Affiliation(s)
- Seok-Jun Mun
- Department of Bionano Engineering, Hanyang University, Seoul, Republic of Korea
- Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Republic of Korea
| | - Euni Cho
- Department of Bionano Engineering, Hanyang University, Seoul, Republic of Korea
- Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Republic of Korea
| | - Hyo Keun Kim
- Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Republic of Korea
- Department of Molecular and Life Science, Hanyang University, Ansan, Republic of Korea
| | - Woo Jin Gil
- Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Republic of Korea
- Department of Molecular and Life Science, Hanyang University, Ansan, Republic of Korea
| | - Chul-Su Yang
- Center for Bionano Intelligence Education and Research, Hanyang University, Ansan, Republic of Korea
- Department of Molecular and Life Science, Hanyang University, Ansan, Republic of Korea
- Department of Medicinal and Life Science, Hanyang University, Ansan, Republic of Korea
| |
Collapse
|
17
|
Kobayashi R, Hashida N. Overview of Cytomegalovirus Ocular Diseases: Retinitis, Corneal Endotheliitis, and Iridocyclitis. Viruses 2024; 16:1110. [PMID: 39066272 PMCID: PMC11281654 DOI: 10.3390/v16071110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/24/2024] [Accepted: 06/29/2024] [Indexed: 07/28/2024] Open
Abstract
Cytomegalovirus (CMV) infection is a significant clinical concern in newborns, immunocompromised patients with acquired immunodeficiency syndrome (AIDS), and patients undergoing immunosuppressive therapy or chemotherapy. CMV infection affects many organs, such as the lungs, digestive organs, the central nerve system, and eyes. In addition, CMV infection sometimes occurs in immunocompetent individuals. CMV ocular diseases includes retinitis, corneal endotheliitis, and iridocyclitis. CMV retinitis often develops in infected newborns and immunocompromised patients. CMV corneal endotheliitis and iridocyclitis sometimes develop in immunocompetent individuals. Systemic infections and CMV ocular diseases often require systemic treatment in addition to topical treatment.
Collapse
Affiliation(s)
| | - Noriyasu Hashida
- Department of Ophthalmology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| |
Collapse
|
18
|
Vasek D, Holicek P, Galatik F, Kratochvilova A, Porubska B, Somova V, Fikarova N, Hajkova M, Prevorovsky M, Zurmanova JM, Krulova M. Immune response to cold exposure: Role of γδ T cells and TLR2-mediated inflammation. Eur J Immunol 2024:e2350897. [PMID: 38988146 DOI: 10.1002/eji.202350897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/12/2024]
Abstract
The mammalian body possesses remarkable adaptability to cold exposure, involving intricate adjustments in cellular metabolism, ultimately leading to thermogenesis. However, cold-induced stress can impact immune response, primarily through noradrenaline-mediated pathways. In our study, we utilized a rat model subjected to short-term or long-term mild cold exposure to investigate systemic immune response during the cold acclimation. To provide human relevance, we included a group of regular cold swimmers in our study. Our research revealed complex relationship between cold exposure, neural signaling, immune response, and thermogenic regulation. One-day cold exposure triggered stress response, including cytokine production in white adipose tissue, subsequently activating brown adipose tissue, and inducing thermogenesis. We further studied systemic immune response, including the proportion of leukocytes and cytokines production. Interestingly, γδ T cells emerged as possible regulators in the broader systemic response, suggesting their possible contribution in the dynamic process of cold adaptation. We employed RNA-seq to gain further insights into the mechanisms by which γδ T cells participate in the response to cold. Additionally, we challenged rats exposed to cold with the Toll-like receptor 2 agonist, showing significant modulation of immune response. These findings significantly contribute to understanding of the physiological acclimation that occur in response to cold exposure.
Collapse
Affiliation(s)
- Daniel Vasek
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Peter Holicek
- Sotio Biotech, Prague, Czech Republic
- Department of Immunology, Charles University, 2nd Faculty of Medicine and University Hospital Motol, Prague, Czech Republic
| | - Frantisek Galatik
- Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Anna Kratochvilova
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Bianka Porubska
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Veronika Somova
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Natalie Fikarova
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Michaela Hajkova
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Martin Prevorovsky
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Jitka M Zurmanova
- Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Magdalena Krulova
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| |
Collapse
|
19
|
Mousa SO, Afifi MF, Hassuna NA, Yassa MF, Moness HM. Assessment of serum proprotein convertase subtilisin/kexin type 9 in pediatric sepsis syndrome. Sci Rep 2024; 14:15634. [PMID: 38972879 PMCID: PMC11228027 DOI: 10.1038/s41598-024-65609-w] [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: 10/07/2023] [Accepted: 06/21/2024] [Indexed: 07/09/2024] Open
Abstract
Sepsis is a life-threatening condition that arises when the body's response to infection causes injury to its tissues and organs. Proprotein convertase subtilisin/kexin type 9 (PCSK9) is an enzyme released in response to the drop in cholesterol level occurring in sepsis. Our study aimed to evaluate the prognostic role of serum Proprotein convertase subtilisin/kexin type 9 (PCSK9) level in children with sepsis and severe sepsis. Sixty children were included in this study. They were divided into two groups: 30 children in the sepsis group and 30 in the severe sepsis group. Another 30 apparently healthy children were included as a control group. Blood samples were withdrawn from all included children for complete blood count (CBC), renal function tests (RFT), liver function tests (LFT), LDL-cholesterol (LDL-C), blood culture, and serum PCSK9. In this study, PCSK9 and LDL-C were higher in the two sepsis groups than in the control group (p < 0.05). They were also higher in the severe sepsis group than the sepsis group and in the non-survivors than in the survivors (p < 0.05). PCSK9 was positively correlated with length of hospital stay in surviving children (r = 0.67, p = 0.001) and had predicted significant hematological dysfunction (adjusted B = - 96.95, p = 0.03). In conclusion, the PCSK9 assay can be used as a biomarker for bad prognosis in children suffering from clinical sepsis.
Collapse
Affiliation(s)
- Suzan Omar Mousa
- Pediatric Department, Minia University Children Hospital, Faculty of Medicine, Minia University, El-Minya, 61111, Egypt.
| | - Mohamed Farouk Afifi
- Pediatric Department, Minia University Children Hospital, Faculty of Medicine, Minia University, El-Minya, 61111, Egypt
| | - Noha Anwar Hassuna
- Medical Microbiology and Immunology Department, Faculty of Medicine, Minia University, El-Minya, Egypt
| | - Michael Fekry Yassa
- Pediatric Department, Minia University Children Hospital, Faculty of Medicine, Minia University, El-Minya, 61111, Egypt
| | - Hend Mohamed Moness
- Clinical Pathology Department, Faculty of Medicine, Minia University Hospitals, Minia University, El-Minya, Egypt
| |
Collapse
|
20
|
Di Vincenzo S, Di Sano C, D'Anna C, Ferraro M, Malizia V, Bruno A, Cristaldi M, Cipollina C, Lazzara V, Pinto P, La Grutta S, Pace E. Tyndallized bacteria prime bronchial epithelial cells to mount an effective innate immune response against infections. Hum Cell 2024; 37:1080-1090. [PMID: 38814518 PMCID: PMC11194193 DOI: 10.1007/s13577-024-01080-z] [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: 02/07/2024] [Accepted: 05/13/2024] [Indexed: 05/31/2024]
Abstract
Airway epithelium represents a physical barrier against toxic substances and pathogens but also presents pattern recognition receptors on the epithelial cells that detect pathogens leading to molecule release and sending signals that activate both the innate and adaptive immune responses. Thus, impaired airway epithelial function and poor integrity may increase the recurrence of infections. Probiotic use in respiratory diseases as adjuvant of traditional therapy is increasingly widespread. There is growing interest in the use of non-viable heat-killed bacteria, such as tyndallized bacteria (TB), due to safety concerns and to their immunomodulatory properties. This study explores in vitro the effects of a TB blend on the immune activation of airway epithelium. 16HBE bronchial epithelial cells were exposed to different concentrations of TB. Cell viability, TB internalization, TLR2 expression, IL-6, IL-8 and TGF-βl expression/release, E-cadherin expression and wound healing were assessed. We found that TB were tolerated, internalized, increased TLR2, E-cadherin expression, IL-6 release and wound healing but decreased both IL-8 and TGF-βl release. In conclusion, TB activate TLR2 pathway without inducing a relevant pro-inflammatory response and improve barrier function, leading to the concept that TB preserve epithelial homeostasis and could be used as strategy to prevent and to manage respiratory infection, exacerbations included.
Collapse
Affiliation(s)
- Serena Di Vincenzo
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa, 90100, Palermo, Italy
| | - Caterina Di Sano
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa, 90100, Palermo, Italy
| | - Claudia D'Anna
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa, 90100, Palermo, Italy
| | - Maria Ferraro
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa, 90100, Palermo, Italy
| | - Velia Malizia
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa, 90100, Palermo, Italy
| | - Andreina Bruno
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa, 90100, Palermo, Italy.
| | | | - Chiara Cipollina
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa, 90100, Palermo, Italy
- Rimed Foundation, 90100, Palermo, Italy
- NBFC, National Biodiversity Future Center, 90100, Palermo, Italy
| | - Valentina Lazzara
- Dipartimento di Scienze Economiche, Aziendali E Statistiche-Università Degli Studi Di Palermo, 90100, Palermo, Italy
| | - Paola Pinto
- Dipartimento di Sanità Pubblica, Medicina Sperimentale e Forense-Università di Pavia, 27100, Pavia, Italy
| | - Stefania La Grutta
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa, 90100, Palermo, Italy
| | - Elisabetta Pace
- Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa, 90100, Palermo, Italy
| |
Collapse
|
21
|
Takahara M, Hirayama S, Futamata H, Nakao R, Tashiro Y. Biofilm-derived membrane vesicles exhibit potent immunomodulatory activity in Pseudomonas aeruginosa PAO1. Microbiol Immunol 2024; 68:224-236. [PMID: 38797913 DOI: 10.1111/1348-0421.13156] [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: 12/05/2023] [Revised: 02/15/2024] [Accepted: 05/09/2024] [Indexed: 05/29/2024]
Abstract
Pathogenic bacteria form biofilms on epithelial cells, and most bacterial biofilms show increased production of membrane vesicles (MVs), also known as outer membrane vesicles in Gram-negative bacteria. Numerous studies have investigated the MVs released under planktonic conditions; however, the impact of MVs released from biofilms on immune responses remains unclear. This study aimed to investigate the characteristics and immunomodulatory activity of MVs obtained from both planktonic and biofilm cultures of Pseudomonas aeruginosa PAO1. The innate immune responses of macrophages to planktonic-derived MVs (p-MVs) and biofilm-derived MVs (b-MVs) were investigated by measuring the mRNA expression of proinflammatory cytokines. Our results showed that b-MVs induced a higher expression of inflammatory cytokines, including Il1b, Il6, and Il12p40, than p-MVs. The mRNA expression levels of Toll-like receptor 4 (Tlr4) differed between the two types of MVs, but not Tlr2. Polymyxin B significantly neutralized b-MV-mediated cytokine induction, suggesting that lipopolysaccharide of native b-MVs is the origin of the immune response. In addition, heat-treated or homogenized b-MVs induced the mRNA expression of cytokines, including Tnfa, Il1b, Il6, and Il12p40. Heat treatment of MVs led to increased expression of Tlr2 but not Tlr4, suggesting that TLR2 ligands play a role in detecting the pathogen-associated molecular patterns in lysed MVs. Taken together, our data indicate that potent immunomodulatory MVs are produced in P. aeruginosa biofilms and that this behavior could be a strategy for the bacteria to infect host cells. Furthermore, our findings would contribute to developing novel vaccines using MVs.
Collapse
Affiliation(s)
- Minato Takahara
- Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, Hamamatsu, Japan
| | - Satoru Hirayama
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
- Division of Microbiology and Infectious Diseases, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hiroyuki Futamata
- Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, Hamamatsu, Japan
- Graduate School of Science and Technology, Shizuoka University, Hamamatsu, Japan
- Research Institute of Green Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Ryoma Nakao
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yosuke Tashiro
- Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, Hamamatsu, Japan
- Graduate School of Science and Technology, Shizuoka University, Hamamatsu, Japan
- JST PRESTO, Kawaguchi, Japan
| |
Collapse
|
22
|
Khaledi M, Sameni F, Gholipour A, Shahrjerdi S, Golmohammadi R, Gouvarchin Ghaleh HE, Poureslamfar B, Hemmati J, Mobarezpour N, Milasi YE, Rad F, Mehboodi M, Owlia P. Potential role of gut microbiota in major depressive disorder: A review. Heliyon 2024; 10:e33157. [PMID: 39027446 PMCID: PMC11254604 DOI: 10.1016/j.heliyon.2024.e33157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 06/10/2024] [Accepted: 06/14/2024] [Indexed: 07/20/2024] Open
Abstract
Interactions between the gut microbiota and host immunity are sophisticated, dynamic, and host-dependent. Scientists have recently conducted research showing that disturbances in the gut bacterial community can lead to a decrease in some metabolites and, consequently, to behaviors such as depression. Exposure to stressors dropped the relative abundance of bacteria in the genus Bacteroides while soaring the relative abundance of bacteria in the genus Clostridium, Coprococcus, Dialister, and Oscillibacter, which were also reduced in people with depression. Microbiota and innate immunity are in a bilateral relationship. The gut microbiota has been shown to induce the synthesis of antimicrobial proteins such as catalysidins, type C lectins, and defensins. Probiotic bacteria can modulate depressive behavior through GABA signaling. The gut microbiome produces essential metabolites such as neurotransmitters, tryptophan metabolites, and short-chain fatty acids (SCFAs) that can act on the CNS. In the case of dysbiosis, due to mucin changes, the ratio of intestinal-derived molecules may change and contribute to depression. Psychotropics, including Bifidobacterium longum NCC3001, Clostridium butyricum CBM588, and Lactobacillus acidophilus, have mental health benefits, and can have a positive effect on the host-brain relationship, and have antidepressant effects. This article reviews current studies on the association between gut microbiota dysbiosis and depression. Comprehensively, these findings could potentially lead to novel approaches to improving depressive symptoms via gut microbiota alterations, including probiotics, prebiotics, and fecal microbiota transplantation.
Collapse
Affiliation(s)
- Mansoor Khaledi
- Department of Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Fatemeh Sameni
- Department of Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
| | - Abolfazl Gholipour
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Shahnaz Shahrjerdi
- Department of Physiology and Sports Pathology, Faculty of Sport Sciences, Arak University, Arak, Iran
| | - Reza Golmohammadi
- Baqiyatallah Research Center for Gastroenterology and Liver Diseases (BRCGL), Clinical Sciences Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | | | | | - Jaber Hemmati
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Niloofar Mobarezpour
- Reference Laboratory for Bovine Tuberculosis, Razi Vaccine and Serum Research Institute, Karaj, Iran
| | - Yaser Eshaghi Milasi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Rad
- Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahtab Mehboodi
- Department of Microbiology and Virology, Kerman University of Medical Sciences, Kerman, Iran
| | - Parviz Owlia
- Molecular Microbiology Research Center, Faculty of Medicine, Shahed University, Tehran, Iran
| |
Collapse
|
23
|
Maxwell JR, Noor S, Pavlik N, Rodriguez DE, Enriquez Marquez L, DiDomenico J, Blossom SJ, Bakhireva LN. Moderate Prenatal Alcohol Exposure Increases Toll-like Receptor Activity in Umbilical Cord Blood at Birth: A Pilot Study. Int J Mol Sci 2024; 25:7019. [PMID: 39000127 PMCID: PMC11241342 DOI: 10.3390/ijms25137019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/20/2024] [Accepted: 06/22/2024] [Indexed: 07/16/2024] Open
Abstract
The prevalence of prenatal alcohol exposure (PAE) is increasing, with evidence suggesting that PAE is linked to an increased risk of infections. PAE is hypothesized to affect the innate immune system, which identifies pathogens through pattern recognition receptors, of which toll-like receptors (TLRs) are key components. We hypothesized that light-to-moderate PAE would impair immune responses, as measured by a heightened response in cytokine levels following TLR stimulation. Umbilical cord samples (10 controls and 8 PAE) from a subset of the Ethanol, Neurodevelopment, Infant and Child Health Study-2 cohort were included. Peripheral blood mononuclear cells (PMBCs) were stimulated with one agonist (TLR2, TLR3, TLR4, or TLR9). TLR2 agonist stimulation significantly increased pro-inflammatory interleukin-1-beta in the PAE group after 24 h. Pro- and anti-inflammatory cytokines were increased following stimulation with the TLR2 agonists. Stimulation with TLR3 or TLR9 agonists displayed minimal impact overall, but there were significant increases in the percent change of the control compared to PAE after 24 h. The results of this pilot investigation support further work into the impact on TLR2 and TLR4 response following PAE to delineate if alterations in levels of pro- and anti-inflammatory cytokines have clinical significance that could be used in patient management and/or attention to follow-up.
Collapse
Affiliation(s)
- Jessie R. Maxwell
- Department of Pediatrics, University of New Mexico, Albuquerque, NM 87131, USA
- Department of Neurosciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Shahani Noor
- Department of Neurosciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Nathaniel Pavlik
- Department of Pediatrics, University of New Mexico, Albuquerque, NM 87131, USA
| | | | | | - Jared DiDomenico
- College of Pharmacy, University of New Mexico, Albuquerque, NM 87131, USA
| | - Sarah J. Blossom
- College of Pharmacy, University of New Mexico, Albuquerque, NM 87131, USA
| | - Ludmila N. Bakhireva
- Substance Use Research and Education (SURE) Center, College of Pharmacy, University of New Mexico, Albuquerque, NM 87131, USA
| |
Collapse
|
24
|
Glass E, Robinson SL, Rosowski EE. Zebrafish use conserved CLR and TLR signaling pathways to respond to fungal PAMPs in zymosan. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.24.600417. [PMID: 38979385 PMCID: PMC11230284 DOI: 10.1101/2024.06.24.600417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Pattern recognition receptors (PRRs) such as C-type lectin receptors (CLRs) and Toll-like receptors (TLRs) are used by hosts to recognize pathogen-associated molecular patterns (PAMPs) in microorganisms and to initiate innate immune responses. While PRRs exist across invertebrate and vertebrate species, the functional homology of many of these receptors is still unclear. In this study, we investigate the innate immune response of zebrafish larvae to zymosan, a β-glucan-containing particle derived from fungal cell walls. Macrophages and neutrophils robustly respond to zymosan and are required for zymosan-induced activation of the NF-κB transcription factor. Full activation of NF-κB in response to zymosan depends on Card9/Syk and Myd88, conserved CLR and TLR adaptor proteins, respectively. Two putative CLRs, Clec4c and Sclra, are both required for maximal sensing of zymosan and NF-κB activation. Altogether, we identify conserved PRRs and PRR signaling pathways in larval zebrafish that promote recognition of fungal PAMPs. These results inform modeling of human fungal infections in zebrafish and increase our knowledge of the evolution and conservation of PRR pathways in vertebrates.
Collapse
Affiliation(s)
- Erin Glass
- Department of Biological Sciences, Clemson University, Clemson, SC
- Eukaryotic Pathogens Innovation Center, Clemson University, Clemson, SC
| | - Stephan L. Robinson
- Eukaryotic Pathogens Innovation Center, Clemson University, Clemson, SC
- School of Medicine Greenville, University of South Carolina, Greenville, SC
| | - Emily E. Rosowski
- Department of Biological Sciences, Clemson University, Clemson, SC
- Eukaryotic Pathogens Innovation Center, Clemson University, Clemson, SC
| |
Collapse
|
25
|
Milona M, Olszowski T, Uzar I, Safranow K, Janiszewska-Olszowska J, Szmidt-Kądys M, Rola H, Sikora M, Chlubek D, Adler G. TLR2 and TLR4 Polymorphisms Are Not Associated with Dental Caries in Polish Children. Int J Mol Sci 2024; 25:6985. [PMID: 39000094 PMCID: PMC11241597 DOI: 10.3390/ijms25136985] [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: 05/26/2024] [Revised: 06/18/2024] [Accepted: 06/24/2024] [Indexed: 07/16/2024] Open
Abstract
The aim of the present study was to analyze the association of the TLR2 (Toll-like receptor 2 gene) 2258G>A (rs5743708), TLR4 (Toll-like receptor 4 gene) 896A>G (rs4986790), and TLR4 1196C>T (rs4986791) polymorphisms with dental caries in Polish children. The participants, 261 15-year-old children, were divided into two groups: 82 cases (i.e., children with DMFT (Decayed, Missing, and Filled Teeth) index >5, having either moderate or high caries experience, assigned as the "higher" caries experience group) and 179 controls (i.e., children with DMFT ≤ 5, having either low or very low caries experience, assigned as the "lower" caries experience group). Genomic DNA was isolated from buccal swabs, and genotyping was determined by means of real-time PCR (polymerase chain reaction). There were no significant differences in the genotype or allele distributions in all tested SNPs (single nucleotide polymorphisms) between children with "higher" caries experience and those with "lower" caries experience. TLR4 haplotype frequencies did not differ significantly between cases and controls. In an additional analysis with another case definition applied (subjects with DMFT ≥ 1 were assigned as "cases", whereas children with DMFT = 0 were assigned as "controls"), no significant differences in the TLR2 and TLR4 genotype, allele frequencies, and TLR4 haplotype frequencies were found between the case and the control groups. The results of the present study broaden our knowledge on the potential genetic factors that might affect caries risk and suggest that TLR2 rs5743708 and TLR4 rs4986790 and rs4986791 SNPs are not associated with dental caries susceptibility in Polish children.
Collapse
Affiliation(s)
- Marta Milona
- Department of Hygiene and Epidemiology, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (M.M.); (T.O.)
| | - Tomasz Olszowski
- Department of Hygiene and Epidemiology, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (M.M.); (T.O.)
| | - Izabela Uzar
- Department of General Pharmacology and Pharmacoeconomics, Pomeranian Medical University in Szczecin, Żołnierska 48, 71-210 Szczecin, Poland;
| | - Krzysztof Safranow
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (K.S.); (M.S.)
| | - Joanna Janiszewska-Olszowska
- Department of Interdisciplinary Dentistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland;
| | - Monika Szmidt-Kądys
- Department of Conservative Dentistry with Endodontics, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland;
| | - Hubert Rola
- MIL-MED Healthcare Center, Ruta 8, 72-300 Gryfice, Poland;
| | - Maciej Sikora
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (K.S.); (M.S.)
- Department of Maxillofacial Surgery, Hospital of the Ministry of Interior, Wojska Polskiego 51, 25-375 Kielce, Poland
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland; (K.S.); (M.S.)
| | - Grażyna Adler
- Department of Studies in Anthropogenetics and Biogerontology, Pomeranian Medical University in Szczecin, Żołnierska 48, 71-210 Szczecin, Poland;
| |
Collapse
|
26
|
Gawey BJ, Mars RA, Kashyap PC. The role of the gut microbiome in disorders of gut-brain interaction. FEBS J 2024. [PMID: 38922780 DOI: 10.1111/febs.17200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/03/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024]
Abstract
Disorders of Gut-Brain Interaction (DGBI) are widely prevalent and commonly encountered in gastroenterology practice. While several peripheral and central mechanisms have been implicated in the pathogenesis of DGBI, a recent body of work suggests an important role for the gut microbiome. In this review, we highlight how gut microbiota and their metabolites affect physiologic changes underlying symptoms in DGBI, with a particular focus on their mechanistic influence on GI transit, visceral sensitivity, intestinal barrier function and secretion, and CNS processing. This review emphasizes the complexity of local and distant effects of microbial metabolites on physiological function, influenced by factors such as metabolite concentration, duration of metabolite exposure, receptor location, host genetics, and underlying disease state. Large-scale in vitro work has elucidated interactions between host receptors and the microbial metabolome but there is a need for future research to integrate such preclinical findings with clinical studies. The development of novel, targeted therapeutic strategies for DGBI hinges on a deeper understanding of these metabolite-host interactions, offering exciting possibilities for the future of treatment of DGBI.
Collapse
Affiliation(s)
- Brent J Gawey
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Ruben A Mars
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Purna C Kashyap
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
27
|
Gaur SK, Chaudhary Y, Jain J, Singh R, Kaul R. Structural and functional characterization of peste des petits ruminants virus coded hemagglutinin protein using various in-silico approaches. Front Microbiol 2024; 15:1427606. [PMID: 38966393 PMCID: PMC11222573 DOI: 10.3389/fmicb.2024.1427606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 06/10/2024] [Indexed: 07/06/2024] Open
Abstract
Peste des petits ruminants (PPR), a disease of socioeconomic importance has been a serious threat to small ruminants. The causative agent of this disease is PPR virus (PPRV) which belongs to the genus Morbillivirus. Hemagglutinin (H) is a PPRV coded transmembrane protein embedded in the viral envelope and plays a vital role in mediating the entry of virion particle into the cell. The infected host mounts an effective humoral response against H protein which is important for host to overcome the infection. In the present study, we have investigated structural, physiological and functional properties of hemagglutinin protein using various computational tools. The sequence analysis and structure prediction analysis show that hemagglutinin protein comprises of beta sheets as the predominant secondary structure, and may lack neuraminidase activity. PPRV-H consists of several important domains and motifs that form an essential scaffold which impart various critical roles to the protein. Comparative modeling predicted the protein to exist as a homo-tetramer that binds to its cognate cellular receptors. Certain amino acid substitutions identified by multiple sequence alignment were found to alter the predicted structure of the protein. PPRV-H through its predicted interaction with TLR-2 molecule may drive the expression of CD150 which could further propagate the virus into the host. Together, our study provides new insights into PPRV-H protein structure and its predicted functions.
Collapse
Affiliation(s)
| | | | | | | | - Rajeev Kaul
- Department of Microbiology, University of Delhi South Campus, New Delhi, India
| |
Collapse
|
28
|
Finnerty RM, Carulli DJ, Hegde A, Wang Y, Baodu F, Winuthayanon S, Cheng J, Winuthayanon W. Multi-omics analyses and machine learning prediction of oviductal responses in the presence of gametes and embryos. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.13.598905. [PMID: 38915688 PMCID: PMC11195261 DOI: 10.1101/2024.06.13.598905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
The oviduct is the site of fertilization and preimplantation embryo development in mammals. Evidence suggests that gametes alter oviductal gene expression. To delineate the adaptive interactions between the oviduct and gamete/embryo, we performed a multi-omics characterization of oviductal tissues utilizing bulk RNA-sequencing (RNA-seq), single-cell RNA-sequencing (scRNA-seq), and proteomics collected from distal and proximal at various stages after mating in mice. We observed robust region-specific transcriptional signatures. Specifically, the presence of sperm induces genes involved in pro-inflammatory responses in the proximal region at 0.5 days post-coitus (dpc). Genes involved in inflammatory responses were produced specifically by secretory epithelial cells in the oviduct. At 1.5 and 2.5 dpc, genes involved in pyruvate and glycolysis were enriched in the proximal region, potentially providing metabolic support for developing embryos. Abundant proteins in the oviductal fluid were differentially observed between naturally fertilized and superovulated samples. RNA-seq data were used to identify transcription factors predicted to influence protein abundance in the proteomic data via a novel machine learning model based on transformers of integrating transcriptomics and proteomics data. The transformers identified influential transcription factors and correlated predictive protein expressions in alignment with the in vivo-derived data. In conclusion, our multi-omics characterization and subsequent in vivo confirmation of proteins/RNAs indicate that the oviduct is adaptive and responsive to the presence of sperm and embryos in a spatiotemporal manner.
Collapse
Affiliation(s)
- Ryan M. Finnerty
- Department of OB/GYN & Women’s Health, School of Medicine, University of Missouri-Columbia, Columbia, Missouri, 65211 USA
| | - Daniel J. Carulli
- Division of Animal Sciences, College of Agriculture, Food and Natural Resources, University of Missouri-Columbia, Columbia, Missouri, 65211 USA
| | - Akshata Hegde
- Department of Electrical Engineering and Computer Science, College of Engineering
| | - Yanli Wang
- Department of Electrical Engineering and Computer Science, College of Engineering
| | - Frimpong Baodu
- Department of Electrical Engineering and Computer Science, College of Engineering
| | - Sarayut Winuthayanon
- Division of Animal Sciences, College of Agriculture, Food and Natural Resources, University of Missouri-Columbia, Columbia, Missouri, 65211 USA
| | - Jianlin Cheng
- Department of Electrical Engineering and Computer Science, College of Engineering
| | - Wipawee Winuthayanon
- Department of OB/GYN & Women’s Health, School of Medicine, University of Missouri-Columbia, Columbia, Missouri, 65211 USA
- Division of Animal Sciences, College of Agriculture, Food and Natural Resources, University of Missouri-Columbia, Columbia, Missouri, 65211 USA
| |
Collapse
|
29
|
Parodis I, Lindblom J, Barturen G, Ortega-Castro R, Cervera R, Pers JO, Genre F, Hiepe F, Gerosa M, Kovács L, De Langhe E, Piantoni S, Stummvoll G, Vasconcelos C, Vigone B, Witte T, Alarcón-Riquelme ME, Beretta L. Molecular characterisation of lupus low disease activity state (LLDAS) and DORIS remission by whole-blood transcriptome-based pathways in a pan-European systemic lupus erythematosus cohort. Ann Rheum Dis 2024; 83:889-900. [PMID: 38373843 PMCID: PMC11187369 DOI: 10.1136/ard-2023-224795] [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: 07/30/2023] [Accepted: 02/05/2024] [Indexed: 02/21/2024]
Abstract
OBJECTIVES To unveil biological milieus underlying low disease activity (LDA) and remission versus active systemic lupus erythematosus (SLE). METHODS We determined differentially expressed pathways (DEPs) in SLE patients from the PRECISESADS project (NTC02890121) stratified into patients fulfilling and not fulfilling the criteria of (1) Lupus LDA State (LLDAS), (2) Definitions of Remission in SLE remission, and (3) LLDAS exclusive of remission. RESULTS We analysed data from 321 patients; 40.8% were in LLDAS, and 17.4% in DORIS remission. After exclusion of patients in remission, 28.3% were in LLDAS. Overall, 604 pathways differed significantly in LLDAS versus non-LLDAS patients with an false-discovery rate-corrected p (q)<0.05 and a robust effect size (dr)≥0.36. Accordingly, 288 pathways differed significantly between DORIS remitters and non-remitters (q<0.05 and dr≥0.36). DEPs yielded distinct molecular clusters characterised by differential serological, musculoskeletal, and renal activity. Analysis of partially overlapping samples showed no DEPs between LLDAS and DORIS remission. Drug repurposing potentiality for treating SLE was unveiled, as were important pathways underlying active SLE whose modulation could aid attainment of LLDAS/remission, including toll-like receptor (TLR) cascades, Bruton tyrosine kinase (BTK) activity, the cytotoxic T lymphocyte antigen 4 (CTLA-4)-related inhibitory signalling, and the nucleotide-binding oligomerization domain leucine-rich repeat-containing protein 3 (NLRP3) inflammasome pathway. CONCLUSIONS We demonstrated for the first time molecular signalling pathways distinguishing LLDAS/remission from active SLE. LLDAS/remission was associated with reversal of biological processes related to SLE pathogenesis and specific clinical manifestations. DEP clustering by remission better grouped patients compared with LLDAS, substantiating remission as the ultimate treatment goal in SLE; however, the lack of substantial pathway differentiation between the two states justifies LLDAS as an acceptable goal from a biological perspective.
Collapse
Affiliation(s)
- Ioannis Parodis
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Gastroenterology, Dermatology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
- Department of Rheumatology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Julius Lindblom
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Gastroenterology, Dermatology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
| | - Guillermo Barturen
- GENYO, Centre for Genomics and Oncological Research: Pfizer, University of Granada / Andalusian Regional Government, Granada, Spain, Medical Genomics, Granada, Spain
- Department of Genetics, Faculty of Sciences, University of Granada, Granada, Spain
| | | | - Ricard Cervera
- Department of Autoimmune Diseases, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Catalonia, Spain
| | - Jacques-Olivier Pers
- Centre Hospitalier Universitaire de Brest, Hopital de la Cavale Blanche, Brest, France
| | - Fernanda Genre
- Research Group on Genetic Epidemiology and Atherosclerosis in Systemic Diseases and in Metabolic Bone Diseases of the Musculoskeletal System, IDIVAL, Santander, Spain
| | - Falk Hiepe
- Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | | | - Ellen De Langhe
- Katholieke Universiteit Leuven and Universitair Ziekenhuis Leuven, Leuven, Belgium
| | - Silvia Piantoni
- Rheumatology and Clinical Immunology Unit, Department of Clinical and Experimental Sciences, Azienda Socio Sanitaria Territoriale Spedali Civili and University of Brescia, Brescia, Italy
| | | | | | - Barbara Vigone
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | - Marta E Alarcón-Riquelme
- GENYO, Centre for Genomics and Oncological Research: Pfizer, University of Granada / Andalusian Regional Government, Granada, Spain, Medical Genomics, Granada, Spain
- Department of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Lorenzo Beretta
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| |
Collapse
|
30
|
Alizadeh M, Shojadoost B, Fletcher C, Wang A, Abdelaziz K, Sharif S. Treatment of chickens with lactobacilli prior to challenge with Clostridium perfringens modifies innate responses and gut morphology. Res Vet Sci 2024; 172:105241. [PMID: 38555776 DOI: 10.1016/j.rvsc.2024.105241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/16/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
Necrotic enteritis caused by Clostridium perfringens (CP), is a common enteric disease of poultry that has been previously controlled by in-feed antibiotics. However, due to the rapid emergence of antimicrobial resistance, alternatives to antibiotics such as probiotics have received considerable attention because of their immunomodulatory and intestinal health benefits. The present study investigated the effects of probiotic lactobacilli on gut histomorphology and intestinal innate responses in chickens. Day-old male broiler chickens were treated with 1 × 107 or 1 × 108 colony-forming units (CFU) of a lactobacilli cocktail on days 1, 7, 14, and 20 post-hatch, while control groups were not treated with lactobacilli. On day 21, birds in all groups (except the negative control) were challenged with 3 × 108 CFU of CP for 3 days. Intestinal tissue samples were collected before and after the CP challenge to assess gene expression and for histomorphological analysis. Lactobacilli treatment at a dose of 1 × 108 CFU conferred partial protection against NE by lowering lesion scores, increasing villus height in the ileum and reducing crypt depth in the jejunum. In addition, 1 × 108 CFU of lactobacilli enhanced the expression of Toll-like receptor (TLR) 2, interferon-gamma (IFN-γ), interleukin (IL)-10, IL-12, and IL-13 in both the jejunum and ileum at different timepoints and subsequently decreased the expression of transforming growth factor beta (TGF-β) and IL-1β post-CP challenge. In conclusion, the results indicate that treatment with lactobacilli mitigated NE in a dose-dependent manner via improvement of intestinal morphology and modulation of innate immune response in chickens.
Collapse
Affiliation(s)
- Mohammadali Alizadeh
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada; Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634, USA.
| | | | - Charlotte Fletcher
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada.
| | - Alice Wang
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
| | - Khaled Abdelaziz
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada.
| | - Shayan Sharif
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
| |
Collapse
|
31
|
Griesman T, McMillen CM, Negatu SG, Hulahan JJ, Whig K, Dohnalová L, Dittmar M, Thaiss CA, Jurado KA, Schultz DC, Hartman AL, Cherry S. The lipopeptide Pam3CSK4 inhibits Rift Valley fever virus infection and protects from encephalitis. PLoS Pathog 2024; 20:e1012343. [PMID: 38935789 PMCID: PMC11236204 DOI: 10.1371/journal.ppat.1012343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 07/10/2024] [Accepted: 06/12/2024] [Indexed: 06/29/2024] Open
Abstract
Rift Valley fever virus (RVFV) is an encephalitic bunyavirus that can infect neurons in the brain. There are no approved therapeutics that can protect from RVFV encephalitis. Innate immunity, the first line of defense against infection, canonically antagonizes viruses through interferon signaling. We found that interferons did not efficiently protect primary cortical neurons from RVFV, unlike other cell types. To identify alternative neuronal antiviral pathways, we screened innate immune ligands and discovered that the TLR2 ligand Pam3CSK4 inhibited RVFV infection, and other bunyaviruses. Mechanistically, we found that Pam3CSK4 blocks viral fusion, independent of TLR2. In a mouse model of RVFV encephalitis, Pam3CSK4 treatment protected animals from infection and mortality. Overall, Pam3CSK4 is a bunyavirus fusion inhibitor active in primary neurons and the brain, representing a new approach toward the development of treatments for encephalitic bunyavirus infections.
Collapse
Affiliation(s)
- Trevor Griesman
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia Pennsylvania, United States of America
| | - Cynthia M. McMillen
- Center for Vaccine Research, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Infectious Diseases and Microbiology, University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania, United States of America
| | - Seble Getenet Negatu
- Department of Microbiology, University of Pennsylvania, Philadelphia Pennsylvania, Unites States of America
| | - Jesse J. Hulahan
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia Pennsylvania, United States of America
| | - Kanupriya Whig
- High throughput screening core, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Lenka Dohnalová
- Department of Microbiology, University of Pennsylvania, Philadelphia Pennsylvania, Unites States of America
| | - Mark Dittmar
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia Pennsylvania, United States of America
| | - Christoph A. Thaiss
- Department of Microbiology, University of Pennsylvania, Philadelphia Pennsylvania, Unites States of America
| | - Kellie A. Jurado
- Department of Microbiology, University of Pennsylvania, Philadelphia Pennsylvania, Unites States of America
| | - David C. Schultz
- High throughput screening core, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Amy L. Hartman
- Center for Vaccine Research, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Infectious Diseases and Microbiology, University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania, United States of America
| | - Sara Cherry
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia Pennsylvania, United States of America
- High throughput screening core, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| |
Collapse
|
32
|
Popotas A, Casimir GJ, Corazza F, Lefèvre N. Sex-related immunity: could Toll-like receptors be the answer in acute inflammatory response? Front Immunol 2024; 15:1379754. [PMID: 38835761 PMCID: PMC11148260 DOI: 10.3389/fimmu.2024.1379754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/06/2024] [Indexed: 06/06/2024] Open
Abstract
An increasing number of studies have highlighted the existence of a sex-specific immune response, wherein men experience a worse prognosis in cases of acute inflammatory diseases. Initially, this sex-dependent inflammatory response was attributed to the influence of sex hormones. However, a growing body of evidence has shifted the focus toward the influence of chromosomes rather than sex hormones in shaping these inflammatory sex disparities. Notably, certain pattern recognition receptors, such as Toll-like receptors (TLRs), and their associated immune pathways have been implicated in driving the sex-specific immune response. These receptors are encoded by genes located on the X chromosome. TLRs are pivotal components of the innate immune system, playing crucial roles in responding to infectious diseases, including bacterial and viral pathogens, as well as trauma-related conditions. Importantly, the TLR-mediated inflammatory responses, as indicated by the production of specific proteins and cytokines, exhibit discernible sex-dependent patterns. In this review, we delve into the subject of sex bias in TLR activation and explore its clinical implications relatively to both the X chromosome and the hormonal environment. The overarching objective is to enhance our understanding of the fundamental mechanisms underlying these sex differences.
Collapse
Affiliation(s)
- Alexandros Popotas
- Laboratory of Pediatrics, Université Libre de Bruxelles, Brussels, Belgium
- Laboratory of Translational Research, Université Libre de Bruxelles, Brussels, Belgium
| | - Georges Jacques Casimir
- Laboratory of Pediatrics, Université Libre de Bruxelles, Brussels, Belgium
- Department of Pulmonology, Allergology and Cystic Fibrosis, Queen Fabiola Childrens University Hospital (Hôpital Universitaire des Enfants Reine Fabiola) – University Hospital of Brussels (Hôpital Universitaire de Bruxelles), Brussels, Belgium
| | - Francis Corazza
- Laboratory of Translational Research, Université Libre de Bruxelles, Brussels, Belgium
- Laboratory of Immunology, Centre Hospitalier Universitaire (CHU) Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - Nicolas Lefèvre
- Laboratory of Pediatrics, Université Libre de Bruxelles, Brussels, Belgium
- Department of Pulmonology, Allergology and Cystic Fibrosis, Queen Fabiola Childrens University Hospital (Hôpital Universitaire des Enfants Reine Fabiola) – University Hospital of Brussels (Hôpital Universitaire de Bruxelles), Brussels, Belgium
| |
Collapse
|
33
|
Viox EG, Bosinger SE, Douek DC, Schreiber G, Paiardini M. Harnessing the power of IFN for therapeutic approaches to COVID-19. J Virol 2024; 98:e0120423. [PMID: 38651899 PMCID: PMC11092331 DOI: 10.1128/jvi.01204-23] [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] [Indexed: 04/25/2024] Open
Abstract
Interferons (IFNs) are essential for defense against viral infections but also drive recruitment of inflammatory cells to sites of infection, a key feature of severe COVID-19. Here, we explore the complexity of the IFN response in COVID-19, examine the effects of manipulating IFN on SARS-CoV-2 viral replication and pathogenesis, and highlight pre-clinical and clinical studies evaluating the therapeutic efficacy of IFN in limiting COVID-19 severity.
Collapse
Affiliation(s)
- Elise G. Viox
- Division of Microbiology and Immunology, Emory National Primate Research Center, Emory University, Atlanta, Georgia, USA
| | - Steven E. Bosinger
- Division of Microbiology and Immunology, Emory National Primate Research Center, Emory University, Atlanta, Georgia, USA
- Emory NPRC Genomics Core Emory National Primate Research Center, Emory University, Atlanta, Georgia, USA
- Department of Pathology and Laboratory Medicine, School of Medicine, Emory University, Atlanta, Georgia, USA
| | - Daniel C. Douek
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Gideon Schreiber
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Mirko Paiardini
- Division of Microbiology and Immunology, Emory National Primate Research Center, Emory University, Atlanta, Georgia, USA
- Department of Pathology and Laboratory Medicine, School of Medicine, Emory University, Atlanta, Georgia, USA
| |
Collapse
|
34
|
Singer R, Oganezova I, Hu W, Liu L, Ding Y, de Groot HJM, Spaink HP, Alia A. Ultrahigh field diffusion magnetic resonance imaging uncovers intriguing microstructural changes in the adult zebrafish brain caused by Toll-like receptor 2 genomic deletion. NMR IN BIOMEDICINE 2024:e5170. [PMID: 38742727 DOI: 10.1002/nbm.5170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 05/16/2024]
Abstract
Toll-like receptor 2 (TLR2) belongs to the TLR protein family that plays an important role in the immune and inflammation response system. While TLR2 is predominantly expressed in immune cells, its expression has also been detected in the brain, specifically in microglia and astrocytes. Recent studies indicate that genomic deletion of TLR2 can result in impaired neurobehavioural function. It is currently not clear if the genomic deletion of TLR2 leads to any alterations in the microstructural features of the brain. In the current study, we noninvasively assess microstructural changes in the brain of TLR2-deficient (tlr2-/-) zebrafish using state-of-the art magnetic resonance imaging (MRI) methods at ultrahigh magnetic field strength (17.6 T). A significant increase in cortical thickness and an overall trend towards increased brain volumes were observed in young tlr2-/- zebrafish. An elevated T2 relaxation time and significantly reduced apparent diffusion coefficient (ADC) unveil brain-wide microstructural alterations, potentially indicative of cytotoxic oedema and astrogliosis in the tlr2-/- zebrafish. Multicomponent analysis of the ADC diffusivity signal by the phasor approach shows an increase in the slow ADC component associated with restricted diffusion. Diffusion tensor imaging and diffusion kurtosis imaging analysis revealed diminished diffusivity and enhanced kurtosis in various white matter tracks in tlr2-/- compared with control zebrafish, identifying the microstructural underpinnings associated with compromised white matter integrity and axonal degeneration. Taken together, our findings demonstrate that the genomic deletion of TLR2 results in severe alterations to the microstructural features of the zebrafish brain. This study also highlights the potential of ultrahigh field diffusion MRI techniques in discerning exceptionally fine microstructural details within the small zebrafish brain, offering potential for investigating microstructural changes in zebrafish models of various brain diseases.
Collapse
Affiliation(s)
- Rico Singer
- Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Ina Oganezova
- Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Wanbin Hu
- Institute of Biology, Leiden University, Leiden, The Netherlands
| | - Li Liu
- Institute of Biology, Leiden University, Leiden, The Netherlands
| | - Yi Ding
- Institute of Biology, Leiden University, Leiden, The Netherlands
| | - Huub J M de Groot
- Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Herman P Spaink
- Institute of Biology, Leiden University, Leiden, The Netherlands
| | - A Alia
- Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
- Institute of Medical Physics and Biophysics, Leipzig University, Leipzig, Germany
| |
Collapse
|
35
|
Chakraborty A, Kamat SS. Lysophosphatidylserine: A Signaling Lipid with Implications in Human Diseases. Chem Rev 2024; 124:5470-5504. [PMID: 38607675 DOI: 10.1021/acs.chemrev.3c00701] [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: 04/14/2024]
Abstract
Lysophosphatidylserine (lyso-PS) has emerged as yet another important signaling lysophospholipid in mammals, and deregulation in its metabolism has been directly linked to an array of human autoimmune and neurological disorders. It has an indispensable role in several biological processes in humans, and therefore, cellular concentrations of lyso-PS are tightly regulated to ensure optimal signaling and functioning in physiological settings. Given its biological importance, the past two decades have seen an explosion in the available literature toward our understanding of diverse aspects of lyso-PS metabolism and signaling and its association with human diseases. In this Review, we aim to comprehensively summarize different aspects of lyso-PS, such as its structure, biodistribution, chemical synthesis, and SAR studies with some synthetic analogs. From a biochemical perspective, we provide an exhaustive coverage of the diverse biological activities modulated by lyso-PSs, such as its metabolism and the receptors that respond to them in humans. We also briefly discuss the human diseases associated with aberrant lyso-PS metabolism and signaling and posit some future directions that may advance our understanding of lyso-PS-mediated mammalian physiology.
Collapse
Affiliation(s)
- Arnab Chakraborty
- Department of Biology, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
| | - Siddhesh S Kamat
- Department of Biology, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
| |
Collapse
|
36
|
Gilmour BC, Corthay A, Øynebråten I. High production of IL-12 by human dendritic cells stimulated with combinations of pattern-recognition receptor agonists. NPJ Vaccines 2024; 9:83. [PMID: 38702320 PMCID: PMC11068792 DOI: 10.1038/s41541-024-00869-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 03/29/2024] [Indexed: 05/06/2024] Open
Abstract
The cytokine IL-12p70 is crucial for T helper 1 (Th1) polarization and the generation of type 1 immunity required to fight cancer and pathogens. Therefore, strategies to optimize the production of IL-12p70 by human dendritic cells (DCs) may significantly improve the efficacy of vaccines and immunotherapies. However, the rules governing the production of IL-12p70 remain obscure. Here, we stimulated pattern recognition receptors (PRRs) representing five families of PRRs, to evaluate their ability to elicit high production of IL-12p70 by monocyte-derived DCs. We used ten well-characterized agonists and stimulated DCs in vitro with either single agonists or 27 different combinations. We found that poly(I:C), which engages the RNA-sensing PRRs TLR3 and MDA5, and LPS which stimulates TLR4, were the only agonists that could elicit notable IL-12p70 production when used as single ligands. We identified six different combinations of PRR agonists, all containing either the TLR3/MDA5 agonist poly(I:C) or the TLR7/8 agonist R848, that could synergize to elicit high production of IL-12p70 by human DCs. Five of the six combinations also triggered high production of the antiviral and antitumor cytokine IFNβ. Overall, the tested PRR ligands could be divided into three groups depending on whether they triggered production of both IL-12p70 and IFNβ, only one of the two, or neither. Thus, combinations of PRR agonists were found to increase the production of IL-12p70 by human DCs in a synergistic manner, and we identified six PRR agonist combinations that may represent strong adjuvant candidates, in particular for therapeutic cancer vaccines.
Collapse
Affiliation(s)
- Brian C Gilmour
- Tumor Immunology Lab, Department of Pathology, Rikshospitalet, Oslo University Hospital, Oslo, Norway
| | - Alexandre Corthay
- Tumor Immunology Lab, Department of Pathology, Rikshospitalet, Oslo University Hospital, Oslo, Norway
- Hybrid Technology Hub - Centre of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Inger Øynebråten
- Tumor Immunology Lab, Department of Pathology, Rikshospitalet, Oslo University Hospital, Oslo, Norway.
- Hybrid Technology Hub - Centre of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
| |
Collapse
|
37
|
Moghaddam MM, Behzadi E, Sedighian H, Goleij Z, Kachuei R, Heiat M, Fooladi AAI. Regulation of immune responses to infection through interaction between stem cell-derived exosomes and toll-like receptors mediated by microRNA cargoes. Front Cell Infect Microbiol 2024; 14:1384420. [PMID: 38756232 PMCID: PMC11096519 DOI: 10.3389/fcimb.2024.1384420] [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: 02/09/2024] [Accepted: 04/22/2024] [Indexed: 05/18/2024] Open
Abstract
Infectious diseases are among the factors that account for a significant proportion of disease-related deaths worldwide. The primary treatment approach to combat microbial infections is the use of antibiotics. However, the widespread use of these drugs over the past two decades has led to the emergence of resistant microbial species, making the control of microbial infections a serious challenge. One of the most important solutions in the field of combating infectious diseases is the regulation of the host's defense system. Toll-like receptors (TLRs) play a crucial role in the first primary defense against pathogens by identifying harmful endogenous molecules released from dying cells and damaged tissues as well as invading microbial agents. Therefore, they play an important role in communicating and regulating innate and adaptive immunity. Of course, excessive activation of TLRs can lead to disruption of immune homeostasis and increase the risk of inflammatory reactions. Targeting TLR signaling pathways has emerged as a new therapeutic approach for infectious diseases based on host-directed therapy (HDT). In recent years, stem cell-derived exosomes have received significant attention as factors regulating the immune system. The regulation effects of exosomes on the immune system are based on the HDT strategy, which is due to their cargoes. In general, the mechanism of action of stem cell-derived exosomes in HDT is by regulating and modulating immunity, promoting tissue regeneration, and reducing host toxicity. One of their most important cargoes is microRNAs, which have been shown to play a significant role in regulating immunity through TLRs. This review investigates the therapeutic properties of stem cell-derived exosomes in combating infections through the interaction between exosomal microRNAs and Toll-like receptors.
Collapse
Affiliation(s)
- Mehrdad Moosazadeh Moghaddam
- Tissue Engineering and Regenerative Medicine Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Elham Behzadi
- The Academy of Medical Sciences of I.R. Iran, Tehran, Iran
| | - Hamid Sedighian
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Zoleikha Goleij
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Reza Kachuei
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mohammad Heiat
- Baqiyatallah Research Center for Gastroenterology and Liver Diseases (BRCGL), Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Abbas Ali Imani Fooladi
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| |
Collapse
|
38
|
Liu J, Gao L, Zhou N, Jiang Z, Che S, Deng Y, Zang N, Ren L, Xie X, Xie J, Liu E. p53 suppresses the inflammatory response following respiratory syncytial virus infection by inhibiting TLR2. Virology 2024; 593:110018. [PMID: 38368639 DOI: 10.1016/j.virol.2024.110018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 02/20/2024]
Abstract
-Respiratory syncytial virus (RSV) is a pivotal virus leading to acute lower respiratory tract infections in children under 5 years old. This study aimed to explore the correlation between p53 and Toll-like receptors (TLRs) post RSV infection. p53 levels exhibited a substantial decrease in nasopharyngeal aspirates (NPAs) from infants with RSV infection compared to control group. Manipulating p53 expression had no significant impact on RSV replication or interferon signaling pathway. Suppression of p53 expression led to heightened inflammation following RSV infection in A549 cells or airways of BALB/c mice. while stabilizing p53 expression using Nutlin-3a mitigated the inflammatory response in A549 cells. Additionally, Inhibiting p53 expression significantly increased Toll-like receptor 2 (TLR2) expression in RSV-infected epithelial cells and BALB/c mice. Furthermore, the TLR2 inhibitor, C29, effectively reduced inflammation mediated by p53 in A549 cells. Collectively, our results indicate that p53 modulates the inflammatory response after RSV infection through TLR2.
Collapse
Affiliation(s)
- Jiao Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Leiqiong Gao
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Na Zhou
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Zhenghong Jiang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Siyi Che
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Luo Ren
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Jun Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China.
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China.
| |
Collapse
|
39
|
Gao Z, Wang J, Lu G, Wu Q, Wang S, Wu X, Ou C, Wu Z, Yu H, Wang Y. Exploration the mechanism of Shenling Baizhu San in the treatment of chronic obstructive pulmonary disease based on UPLC-Q-TOF-MS/MS, network pharmacology and in vitro experimental verification. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117728. [PMID: 38216101 DOI: 10.1016/j.jep.2024.117728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/15/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shenling Baizhu San (SLBZS) is a formula of traditional Chinese medicine (TCM) that enhances the functions of the qi, spleen, and lung. According to the theory of TCM, chronic obstructive pulmonary disease (COPD) is often caused by lung qi deficiency, and SLBZS is often used in the treatment of COPD and has achieved remarkable results. However, the active components of SLBZS absorbed in serum and the underlying mechanism of SLBZS in treating COPD remain unclear and require further studies. AIM OF THE STUDY The objective of this study is to investigate the active components of SLBZS in rat serum, as well as the crucial targets and signaling pathways involved in the therapeutic effects of SLBZS for COPD. MATERIALS AND METHODS First, the absorption components and metabolites of SLBZS in rat serum were identified using ultra-performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS/MS). Second, potential targets of SLBZS for the treatment of COPD were acquired from publicly accessible online sources. Cytoscape (v3.7.0) software was used to construct a component-target-pathway network and a protein-protein interaction (PPI) network. The Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of potential targets was performed using the Metascape database. The binding status of the active components in SLBZS to the potential targets was assessed with molecular docking technology. Finally, a cell model of COPD was successfully developed for experimental validation In vitro. RESULTS A total of 108 active components were identified, including 30 prototype components and 78 metabolites. A total of 292 potential targets for the treatment of COPD were identified, including TNF, IL-6, TLR9, RELA, and others. The KEGG pathway included inflammatory mediator regulation of TRP channels, necroptosis, and the NF-κB signaling pathway, among others. The In vitro experiments showed that SLBZS-containing serum had the ability to decrease the levels of inflammatory factors and cell death. Additionally, it was observed that SLBZS-containing serum could control the expression levels of TLR9, MyD88, TRAF6, NF-κB, and IκBα at the mRNA and protein levels. These findings suggested that SLBZS-containing serum was likely to be involved in the regulation of the TLR9/NF-κB pathway. CONCLUSIONS The mechanism of action of SLBZS on COPD was preliminarily elucidated using UPLC-Q-TOF-MS/MS, network pharmacology, and In vitro experiments. The primary active components and potential targets of SLBZS were identified, providing a scientific foundation for further research.
Collapse
Affiliation(s)
- Zu Gao
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Jiayun Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Guangying Lu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Qiaolan Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Shijun Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Xiaolin Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Chunxue Ou
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Zhichun Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Huayun Yu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Yuan Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China.
| |
Collapse
|
40
|
Padovani CM, Wilson RM, Rodriguez A, Spur BW, Yin K. Resolvin D2 attenuates LPS-induced macrophage exhaustion. FASEB J 2024; 38:e23569. [PMID: 38551610 DOI: 10.1096/fj.202302521r] [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: 12/06/2023] [Revised: 02/21/2024] [Accepted: 03/07/2024] [Indexed: 04/02/2024]
Abstract
Early in sepsis, a hyperinflammatory response is dominant, but later, an immunosuppressive phase dominates, and the host is susceptible to opportunistic infections. Anti-inflammatory agents may accelerate the host into immunosuppression, and few agents can reverse immunosuppression without causing inflammation. Specialized pro-resolving mediators (SPMs) such as resolvin D2 (RvD2) have been reported to resolve inflammation without being immunosuppressive, but little work has been conducted to examine their effects on immunosuppression. To assess the effects of RvD2 on immunosuppression, we established a model of macrophage exhaustion using two lipopolysaccharide (LPS) treatments or hits. THP-1 monocyte-derived macrophages were first treated with RvD2 or vehicle for 1 h. One LPS hit increased NF-κB activity 11-fold and TNF-α release 60-fold compared to unstimulated macrophages. RvD2 decreased LPS-induced NF-κB activity and TNF-α production but increased bacterial clearance. Two LPS hits reduced macrophage bacterial clearance and decreased macrophage NF-κB activity (45%) and TNF-α release (75%) compared to one LPS hit, demonstrating exhaustion. RvD2 increased NF-κB activity, TNF-α release, and bacterial clearance following two LPS hits compared to controls. TLR2 inhibition abolished RvD2-mediated changes. In a mouse sepsis model, splenic macrophage response to exogenous LPS was reduced compared to controls and was restored by in vivo administration of RvD2, supporting the in vitro results. If RvD2 was added to monocytes before differentiation into macrophages, however, RvD2 reduced LPS responses and increased bacterial clearance following both one and two LPS hits. The results show that RvD2 attenuated macrophage suppression in vitro and in vivo and that this effect was macrophage-specific.
Collapse
Affiliation(s)
- Cristina M Padovani
- Department of Cell Biology and Neuroscience, Rowan-Virtua School of Translational Biomedical Engineering and Sciences, Virtua Health College of Life Sciences of Rowan University, Stratford, New Jersey, USA
| | - Rachael M Wilson
- Department of Cell Biology and Neuroscience, Rowan-Virtua School of Translational Biomedical Engineering and Sciences, Virtua Health College of Life Sciences of Rowan University, Stratford, New Jersey, USA
| | - Ana Rodriguez
- Department of Cell Biology and Neuroscience, Rowan-Virtua School of Translational Biomedical Engineering and Sciences, Virtua Health College of Life Sciences of Rowan University, Stratford, New Jersey, USA
| | - Bernd W Spur
- Department of Cell Biology and Neuroscience, Rowan-Virtua School of Translational Biomedical Engineering and Sciences, Virtua Health College of Life Sciences of Rowan University, Stratford, New Jersey, USA
| | - Kingsley Yin
- Department of Cell Biology and Neuroscience, Rowan-Virtua School of Translational Biomedical Engineering and Sciences, Virtua Health College of Life Sciences of Rowan University, Stratford, New Jersey, USA
| |
Collapse
|
41
|
Wang JH, Gessler DJ, Zhan W, Gallagher TL, Gao G. Adeno-associated virus as a delivery vector for gene therapy of human diseases. Signal Transduct Target Ther 2024; 9:78. [PMID: 38565561 PMCID: PMC10987683 DOI: 10.1038/s41392-024-01780-w] [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: 07/05/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 04/04/2024] Open
Abstract
Adeno-associated virus (AAV) has emerged as a pivotal delivery tool in clinical gene therapy owing to its minimal pathogenicity and ability to establish long-term gene expression in different tissues. Recombinant AAV (rAAV) has been engineered for enhanced specificity and developed as a tool for treating various diseases. However, as rAAV is being more widely used as a therapy, the increased demand has created challenges for the existing manufacturing methods. Seven rAAV-based gene therapy products have received regulatory approval, but there continue to be concerns about safely using high-dose viral therapies in humans, including immune responses and adverse effects such as genotoxicity, hepatotoxicity, thrombotic microangiopathy, and neurotoxicity. In this review, we explore AAV biology with an emphasis on current vector engineering strategies and manufacturing technologies. We discuss how rAAVs are being employed in ongoing clinical trials for ocular, neurological, metabolic, hematological, neuromuscular, and cardiovascular diseases as well as cancers. We outline immune responses triggered by rAAV, address associated side effects, and discuss strategies to mitigate these reactions. We hope that discussing recent advancements and current challenges in the field will be a helpful guide for researchers and clinicians navigating the ever-evolving landscape of rAAV-based gene therapy.
Collapse
Affiliation(s)
- Jiang-Hui Wang
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, VIC, 3002, Australia
- Ophthalmology, Department of Surgery, University of Melbourne, East Melbourne, VIC, 3002, Australia
| | - Dominic J Gessler
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Department of Neurological Surgery, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Department of Neurosurgery, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Wei Zhan
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
| | - Thomas L Gallagher
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
| | - Guangping Gao
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA.
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA.
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA.
| |
Collapse
|
42
|
Zhu W, Xu X, Nagarajan V, Guo J, Peng Z, Zhang A, Liu J, Mattapallil MJ, Jittayasothorn Y, Horai R, Leger AJS, Caspi RR. TLR2 Supports γδ T cell IL-17A Response to ocular surface commensals by Metabolic Reprogramming. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.01.587519. [PMID: 38712203 PMCID: PMC11071315 DOI: 10.1101/2024.04.01.587519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
The ocular surface is a mucosal barrier tissue colonized by commensal microbes, which tune local immunity by eliciting IL-17 from conjunctival γδ T cells to prevent pathogenic infection. The commensal Corynebacterium mastitidis (C. mast) elicits protective IL-17 responses from conjunctival Vγ4 T cells through a combination of γδ TCR ligation and IL-1 signaling. Here, we identify Vγ6 T cells as a major C. mast-responsive subset in the conjunctiva and uncover its unique activation requirements. We demonstrate that Vγ6 cells require not only extrinsic (via dendritic cells) but also intrinsic TLR2 stimulation for optimal IL-17A response. Mechanistically, intrinsic TLR2 signaling was associated with epigenetic changes and enhanced expression of genes responsible for metabolic shift to fatty acid oxidation to support Il17a transcription. We identify one key transcription factor, IκBζ, which is upregulated by TLR2 stimulation and is essential for this program. Our study highlights the importance of intrinsic TLR2 signaling in driving metabolic reprogramming and production of IL-17A in microbiome-specific mucosal γδ T cells.
Collapse
Affiliation(s)
- Wenjie Zhu
- Laboratory of Immunology, NEI, NIH Bethesda MD 20892, USA
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060 China
| | - Xiaoyan Xu
- Laboratory of Immunology, NEI, NIH Bethesda MD 20892, USA
| | | | - Jing Guo
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Zixuan Peng
- Laboratory of Immunology, NEI, NIH Bethesda MD 20892, USA
| | - Amy Zhang
- Laboratory of Immunology, NEI, NIH Bethesda MD 20892, USA
| | - Jie Liu
- Laboratory of Immunology, NEI, NIH Bethesda MD 20892, USA
- Current address: Schepens Eye Research Institute, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, 02114
| | | | | | - Reiko Horai
- Laboratory of Immunology, NEI, NIH Bethesda MD 20892, USA
| | - Anthony J. St. Leger
- University of Pittsburgh School of Medicine, Departments of Ophthalmology and Immunology, Pittsburgh, PA 15213, USA
| | | |
Collapse
|
43
|
Wang B, Shao Y, Wang X, Li C. Identification and functional analysis of Toll-like receptor 2 from razor clam Sinonovacula constricta. Int J Biol Macromol 2024; 265:131029. [PMID: 38518946 DOI: 10.1016/j.ijbiomac.2024.131029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
Toll-like receptor 2 (TLR2) is a member of TLR family that plays important roles in the innate immune system, such as pathogen recognition and inflammation regulation. In this study, the TLR2 homologue was cloned from razor clam Sinonovacula constricta (denoted as ScTLR2) and its immune function was explored. The full-length cDNA of ScTLR2 comprised 2890 nucleotides with a 5'-UTR of 218 bp, an open reading frame of 2169 bp encoding 722 amino acids and a 3'-UTR of 503 bp. The deduced amino acid of ScTLR2 showed similar structure to TLR2 homologue with a conserved signal peptide, four LRR domains, one LRR-TYP domain, one LRR-CT domain, one transmembrane domain and a conserved TIR domain. ScTLR2 mRNA was detected in all examined tissues with the highest expression in the gill. After Vibrio parahaemolyticus challenge, the mRNA expression of ScTLR2 was significantly induced both in gill and haemocytes. The recombinant ScTLR2-LRR protein could bind all tested PAMPs including LPS, PGN and MAN. Bacterial agglutination assay showed that rScTLR2 could agglutinate the six tested bacteria with a calcium dependent manner. More importantly, ScTLR2 silencing by siRNA transfection could significantly depress the mRNA expression of Myd88, NF-κB, Tollip, IRF1, and IRF8. The survival rate of S. constricta was markedly decreased after V. parahaemolyticus challenge under this condition. Our current study demonstrated that ScTLR2 served as a pattern recognition receptor to induce immune response against invasive pathogen.
Collapse
Affiliation(s)
- Beibei Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China
| | - Yina Shao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China.
| | - Xuelei Wang
- Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Chenghua Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China.
| |
Collapse
|
44
|
Lamendour L, Gilotin M, Deluce-Kakwata Nkor N, Lakhrif Z, Meley D, Poupon A, Laboute T, di Tommaso A, Pin JJ, Mulleman D, Le Mélédo G, Aubrey N, Watier H, Velge-Roussel F. Bispecific antibodies tethering innate receptors induce human tolerant-dendritic cells and regulatory T cells. Front Immunol 2024; 15:1369117. [PMID: 38601165 PMCID: PMC11005913 DOI: 10.3389/fimmu.2024.1369117] [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: 01/11/2024] [Accepted: 03/04/2024] [Indexed: 04/12/2024] Open
Abstract
There is an urgent need for alternative therapies targeting human dendritic cells (DCs) that could reverse inflammatory syndromes in many autoimmune and inflammatory diseases and organ transplantations. Here, we describe a bispecific antibody (bsAb) strategy tethering two pathogen-recognition receptors at the surface of human DCs. This cross-linking switches DCs into a tolerant profile able to induce regulatory T-cell differentiation. The bsAbs, not parental Abs, induced interleukin 10 and transforming growth factor β1 secretion in monocyte-derived DCs and human peripheral blood mononuclear cells. In addition, they induced interleukin 10 secretion by synovial fluid cells in rheumatoid arthritis and gout patients. This concept of bsAb-induced tethering of surface pathogen-recognition receptors switching cell properties opens a new therapeutic avenue for controlling inflammation and restoring immune tolerance.
Collapse
Affiliation(s)
- Lucille Lamendour
- EA7501, Groupe Innovation et Ciblage Cellulaire, Team Fc Récepteurs, Anticorps et MicroEnvironnement (FRAME), Université de Tours, Tours, France
| | - Mäelle Gilotin
- EA7501, Groupe Innovation et Ciblage Cellulaire, Team Fc Récepteurs, Anticorps et MicroEnvironnement (FRAME), Université de Tours, Tours, France
| | - Nora Deluce-Kakwata Nkor
- EA7501, Groupe Innovation et Ciblage Cellulaire, Team Fc Récepteurs, Anticorps et MicroEnvironnement (FRAME), Université de Tours, Tours, France
| | - Zineb Lakhrif
- Infectiologie et Santé Publique (ISP) UMR 1282, INRAE, Team BioMAP, Université de Tours, Tours, France
| | - Daniel Meley
- EA7501, Groupe Innovation et Ciblage Cellulaire, Team Fc Récepteurs, Anticorps et MicroEnvironnement (FRAME), Université de Tours, Tours, France
| | - Anne Poupon
- institut de recherche pour l’agriculture, l’alimentation et ’environnement (INRAE) UMR 0085, centre de recherche scientifique (CNRS) UMR 7247, Physiologie de la Reproduction et des Comportements, Université de Tours, Tours, France
- MAbSilico, Tours, France
| | - Thibaut Laboute
- EA7501, Groupe Innovation et Ciblage Cellulaire, Team Fc Récepteurs, Anticorps et MicroEnvironnement (FRAME), Université de Tours, Tours, France
| | - Anne di Tommaso
- Infectiologie et Santé Publique (ISP) UMR 1282, INRAE, Team BioMAP, Université de Tours, Tours, France
| | | | - Denis Mulleman
- EA7501, Groupe Innovation et Ciblage Cellulaire, Team Fc Récepteurs, Anticorps et MicroEnvironnement (FRAME), Université de Tours, Tours, France
- Service de Rhumatologie, Centre Hospitalo-Universitaire (CHRU) de Tours, Tours, France
| | - Guillaume Le Mélédo
- EA7501, Groupe Innovation et Ciblage Cellulaire, Team Fc Récepteurs, Anticorps et MicroEnvironnement (FRAME), Université de Tours, Tours, France
- Service de Rhumatologie, Centre Hospitalo-Universitaire (CHRU) de Tours, Tours, France
| | - Nicolas Aubrey
- Infectiologie et Santé Publique (ISP) UMR 1282, INRAE, Team BioMAP, Université de Tours, Tours, France
| | - Hervé Watier
- EA7501, Groupe Innovation et Ciblage Cellulaire, Team Fc Récepteurs, Anticorps et MicroEnvironnement (FRAME), Université de Tours, Tours, France
| | - Florence Velge-Roussel
- EA7501, Groupe Innovation et Ciblage Cellulaire, Team Fc Récepteurs, Anticorps et MicroEnvironnement (FRAME), Université de Tours, Tours, France
| |
Collapse
|
45
|
Joseph A, Anton L, Guan Y, Ferguson B, Mirro I, Meng N, France M, Ravel J, Elovitz MA. Extracellular vesicles from vaginal Gardnerella vaginalis and Mobiluncus mulieris contain distinct proteomic cargo and induce inflammatory pathways. NPJ Biofilms Microbiomes 2024; 10:28. [PMID: 38514622 PMCID: PMC10957959 DOI: 10.1038/s41522-024-00502-y] [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: 12/23/2023] [Accepted: 03/11/2024] [Indexed: 03/23/2024] Open
Abstract
Colonization of the vaginal space with bacteria such as Gardnerella vaginalis and Mobiluncus mulieris is associated with increased risk for STIs, bacterial vaginosis, and preterm birth, while Lactobacillus crispatus is associated with optimal reproductive health. Although host-microbe interactions are hypothesized to contribute to reproductive health and disease, the bacterial mediators that are critical to this response remain unclear. Bacterial extracellular vesicles (bEVs) are proposed to participate in host-microbe communication by providing protection of bacterial cargo, delivery to intracellular targets, and ultimately induction of immune responses from the host. We evaluated the proteome of bEVs produced in vitro from G. vaginalis, M. mulieris, and L. crispatus, identifying specific proteins of immunologic interest. We found that bEVs from each bacterial species internalize within cervical and vaginal epithelial cells, and that epithelial and immune cells express a multi-cytokine response when exposed to bEVs from G. vaginalis and M. mulieris but not L. crispatus. Further, we demonstrate that the inflammatory response induced by G. vaginalis and M. mulieris bEVs is TLR2-specific. Our results provide evidence that vaginal bacteria communicate with host cells through secreted bEVs, revealing a mechanism by which bacteria lead to adverse reproductive outcomes associated with inflammation. Elucidating host-microbe interactions in the cervicovaginal space will provide further insight into the mechanisms contributing to microbiome-mediated adverse outcomes and may reveal new therapeutic targets.
Collapse
Affiliation(s)
- Andrea Joseph
- Women's Biomedical Research Institute, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, USA.
- Department of Obstetrics, Gynecology and Reproductive Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, USA.
| | - Lauren Anton
- Center for Research on Reproduction and Women's Health, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yuxia Guan
- Center for Research on Reproduction and Women's Health, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Briana Ferguson
- Center for Research on Reproduction and Women's Health, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Isabella Mirro
- Center for Research on Reproduction and Women's Health, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Nova Meng
- Center for Research on Reproduction and Women's Health, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Michael France
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Jacques Ravel
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Michal A Elovitz
- Women's Biomedical Research Institute, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, USA
| |
Collapse
|
46
|
Jia L, Hsu CY, Zhang X, Li X, Schilling MW, Peebles ED, Kiess AS, Wamsley KGS, Zhang L. Changes in gene expression in the intestinal mucus of broilers with woody breast myopathy. Poult Sci 2024; 103:103398. [PMID: 38194832 PMCID: PMC10792639 DOI: 10.1016/j.psj.2023.103398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 01/11/2024] Open
Abstract
Previous work has shown that dietary treatments affect woody breast (WB) incidence differently, which indicates that gut conditions such as gut barrier function, inflammation, and oxidative stress are likely related to WB. In this study, dietary supplementation with antibiotics (bacitracin) or probiotics (Bacillus subtilis) was investigated for their effects on the expression of transcripts related to gut barrier function, inflammation, and oxidative stress in the mucus lining of the jejunum from broilers with or without WB. A split-plot experimental design was used in this study. The dietary treatments served as the main plot factor and the breast muscle condition was the subplot factor. On d 41, jejunum mucus was collected from 1 bird from each of 3 replicate pens in each 3 dietary treatment groups that exhibited WB and an additional bird that contained a normal breast (3 biological replicates/treatment/phenotype; 3 × 3 × 2, total N = 18). Total RNA was extracted using a commercial RNA extraction kit. The expression levels of CLDN1, MUC6, TLR2A, TLR2B, TLR4, IFN-γ, IL-1β, IL-8L1, IL-10, NOS2, and SOD were determined using 2-step RT-qPCR analysis. The gene expression difference in ΔCt values was determined after normalizing with the chicken 18S rRNA gene. When the significant differences occurred between treatments, the relative fold change was calculated using the ΔΔCt method and the significance level was calculated. The PROC GLM procedure of SAS 9.4 was used, and the level of significance was set at P ≤ 0.05. There were no significant interactive effects between diet and the breast muscle condition on the expression of any of the genes tested. However, birds with WB exhibited higher MUC6 (P < 0.0001) gene expression levels than birds with normal breast muscles. In addition, the expression of SOD decreased in birds that were fed the antibiotic diet when compared to birds that were fed the probiotic diet (P = 0.014). In conclusion, WB identified in broilers tested in the current study is attributed to increased expression of mucin, indicating a correlation between WB incidence and gel-forming mucin secretion and pathogen signaling.
Collapse
Affiliation(s)
- Linan Jia
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Chuan-Yu Hsu
- Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Mississippi State, MS 39762, USA
| | - Xue Zhang
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - Xiaofei Li
- Department of Agricultural Economics, Mississippi State University, Mississippi State, MS 39762, USA
| | - M Wes Schilling
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, MS 39762, USA
| | - E David Peebles
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Aaron S Kiess
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Kelley G S Wamsley
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA
| | - Li Zhang
- Department of Poultry Science, Mississippi State University, Mississippi State, MS 39762, USA.
| |
Collapse
|
47
|
Pandi K, Angabo S, Makkawi H, Benyamini H, Elgavish S, Nussbaum G. P. gingivalis-Induced TLR2 Interactome Analysis Reveals Association with PARP9. J Dent Res 2024; 103:329-338. [PMID: 38344758 DOI: 10.1177/00220345231222181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024] Open
Abstract
Porphyromonas gingivalis is a Gram-negative anaerobic bacterium strongly associated with periodontal disease. Toll-like receptor 2 (TLR2) is indispensable for the host response to P. gingivalis, but P. gingivalis escapes from immune clearance via TLR2-dependent activation of phosphoinositide-3-kinase (PI3K). To probe the TLR2-dependent escape pathway of P. gingivalis, we analyzed the TLR2 interactome induced following P. gingivalis infection or activation by a synthetic lipopeptide TLR2/1 agonist on human macrophages overexpressing TLR2. Interacting proteins were stabilized by cross-linking and then immunoprecipitated and analyzed by mass spectrometry. In total, 792 proteins were recovered and network analysis enabled mapping of the TLR2 interactome at baseline and in response to infection. The P. gingivalis infection-induced TLR2 interactome included the poly (ADP-ribose) polymerase family member mono-ADP-ribosyltransferase protein 9 (PARP9) and additional members of the PARP9 complex (DTX3L and NMI). PARP9 and its complex members are highly upregulated in macrophages exposed to P. gingivalis or to the synthetic TLR2/1 ligand Pam3Cys-Ser-(Lys)4 (PAM). Consistent with its known role in virally induced interferon production, PARP9 knockdown blocked type I interferon (IFN-I) production in response to P. gingivalis and reduced inflammatory cytokine production. We found that P. gingivalis drives signal transducer and activation of transcription (STAT) 1 (S727) phosphorylation through TLR2-PARP9, explaining PARP9's role in the induction of IFN-I downstream of TLR2. Furthermore, PARP9 knockdown reduced PI3K activation by P. gingivalis, leading to improved macrophage bactericidal activity. In summary, PARP9 is a novel TLR2 interacting partner that enables IFN-I induction and P. gingivalis immune escape in macrophages downstream of TLR2 sensing.
Collapse
Affiliation(s)
- K Pandi
- Institute of Biomedical and Oral Research, Hebrew University-Hadassah Faculty of Dental Medicine, Jerusalem, Israel
| | - S Angabo
- Institute of Biomedical and Oral Research, Hebrew University-Hadassah Faculty of Dental Medicine, Jerusalem, Israel
| | - H Makkawi
- Institute of Biomedical and Oral Research, Hebrew University-Hadassah Faculty of Dental Medicine, Jerusalem, Israel
| | - H Benyamini
- Info-CORE, Bioinformatics Unit of the I-CORE, Hebrew University of Jerusalem, Jerusalem, Israel
| | - S Elgavish
- Info-CORE, Bioinformatics Unit of the I-CORE, Hebrew University of Jerusalem, Jerusalem, Israel
| | - G Nussbaum
- Institute of Biomedical and Oral Research, Hebrew University-Hadassah Faculty of Dental Medicine, Jerusalem, Israel
| |
Collapse
|
48
|
Chen J, Song HX, Hu JH, Bai JS, Li XH, Sun RC, Zhao BQ, Li MZ, Zhou B. Classical swine fever virus non-structural protein 5B hijacks host METTL14-mediated m6A modification to counteract host antiviral immune response. PLoS Pathog 2024; 20:e1012130. [PMID: 38551978 PMCID: PMC11006178 DOI: 10.1371/journal.ppat.1012130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/10/2024] [Accepted: 03/17/2024] [Indexed: 04/11/2024] Open
Abstract
Classical Swine Fever (CSF), caused by the Classical Swine Fever Virus (CSFV), inflicts significant economic losses on the global pig industry. A key factor in the challenge of eradicating this virus is its ability to evade the host's innate immune response, leading to persistent infections. In our study, we elucidate the molecular mechanism through which CSFV exploits m6A modifications to circumvent host immune surveillance, thus facilitating its proliferation. We initially discovered that m6A modifications were elevated both in vivo and in vitro upon CSFV infection, particularly noting an increase in the expression of the methyltransferase METTL14. CSFV non-structural protein 5B was found to hijack HRD1, the E3 ubiquitin ligase for METTL14, preventing METTL14 degradation. MeRIP-seq analysis further revealed that METTL14 specifically targeted and methylated TLRs, notably TLR4. METTL14-mediated regulation of TLR4 degradation, facilitated by YTHDF2, led to the accelerated mRNA decay of TLR4. Consequently, TLR4-mediated NF-κB signaling, a crucial component of the innate immune response, is suppressed by CSFV. Collectively, these data effectively highlight the viral evasion tactics, shedding light on potential antiviral strategies targeting METTL14 to curb CSFV infection.
Collapse
Affiliation(s)
- Jing Chen
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Hui-xin Song
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Jia-huan Hu
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang, China
| | - Ji-shan Bai
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xiao-han Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Rui-cong Sun
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Bing-qian Zhao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Mei-zhen Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Bin Zhou
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
49
|
Winther KD, Boll EJ, Sandvang D, Williams AR. Probiotic Bacillus spp. enhance TLR3-mediated TNF signalling in macrophages. Immunology 2024; 171:402-412. [PMID: 38030377 DOI: 10.1111/imm.13721] [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: 04/18/2023] [Accepted: 11/15/2023] [Indexed: 12/01/2023] Open
Abstract
Probiotics have been reported to have immunomodulatory properties in the context of infectious disease and inflammation, although the underlying mechanisms are not fully understood. Here, we aimed to determine how different probiotic bacterial strains modulated macrophage function during TLR3 stimulation mimicking viral infection. We screened 14 different strains for their ability to modulate TNF-α, IL-6 IL-10, IFN-α, IFN-β and IFN-γ secretion in RAW 264.7 macrophages with or without poly(I:C) stimulation. Seven strains were selected for further analysis using primary porcine alveolar macrophages. In-depth transcriptomic analysis on alveolar macrophages was conducted for two strains. Most strains induced a synergistic effect when co-incubated with poly(I:C) resulting in increased levels of IL-6 and TNF-α secretion from RAW 264.7 cells. This synergistic effect was found to be TLR2 independent. Only strains of Bacillus spp. could induce this effect in alveolar macrophages. Transcriptomic analysis indicated that the increased TNF-α secretion in alveolar macrophages after co-incubation with poly(I:C) correlated with significant upregulation of TNF and IL23A-related pathways. Collectively, our data show that probiotic bacteria possess strain-dependent immunomodulatory properties that may be harnessed to enhance innate immune responses to pathogens.
Collapse
Affiliation(s)
- Katrine Damgaard Winther
- Chr. Hansen A/S, Animal and Plant Health & Nutrition, Hørsholm, Denmark
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Erik Juncker Boll
- Chr. Hansen A/S, Animal and Plant Health & Nutrition, Hørsholm, Denmark
| | - Dorthe Sandvang
- Chr. Hansen A/S, Animal and Plant Health & Nutrition, Hørsholm, Denmark
| | - Andrew R Williams
- Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| |
Collapse
|
50
|
Geng RSQ, Bourkas AN, Mufti A, Sibbald RG. Rosacea: Pathogenesis and Therapeutic Correlates. J Cutan Med Surg 2024; 28:178-189. [PMID: 38450615 PMCID: PMC11015710 DOI: 10.1177/12034754241229365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Rosacea is a chronic inflammatory condition of which there is no cure. The pathogenesis of rosacea is likely multifactorial, involving genetic and environmental contributions. Current understanding suggests that pro-inflammatory pathways involving cathelicidins and inflammasome complexes are central to rosacea pathogenesis. Common rosacea triggers modulate these pathways in a complex manner, which may contribute to the varying severity and clinical presentations of rosacea. Established and emerging rosacea treatments may owe their efficacy to their ability to target different players in these pro-inflammatory pathways. Improving our molecular understanding of rosacea will guide the development of new therapies and the use of combination therapies.
Collapse
Affiliation(s)
- Ryan S. Q. Geng
- Temerty School of Medicine, University of Toronto, Toronto, ON, Canada
| | | | - Asfandyar Mufti
- Division of Dermatology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - R. Gary Sibbald
- Temerty School of Medicine, University of Toronto, Toronto, ON, Canada
- Dalla Lana School of Public Health and Division of Dermatology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| |
Collapse
|