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Eom JE, Shin DU, Kim GD, Yoon JH, Shin HS, Lee SY. Pediococcus pentosaceus KF159 alleviates house dust mite-induced atopic dermatitis by promoting IL10 production and regulatory T cell induction. Food Funct 2024; 15:6975-6987. [PMID: 38853660 DOI: 10.1039/d4fo00933a] [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: 06/11/2024]
Abstract
Atopic dermatitis (AD) is a chronic immune disease that requires long-term management owing to its relative ease of recurrence. However, steroid treatment is limited owing to the side effects. Therefore, research on therapeutics with proven safety is required. Here, we evaluated the anti-allergic activity of the probiotic strain Pediococcus pentosaceus KF159 (PPKF159) with an ex vivo mouse model sensitized with ovalbumin (OVA) and a mouse model of AD induced by house dust mites. Changes in pathological symptoms were confirmed based on the clinical status of the AD-induced lesion site and the levels of T helper type 2 (Th2)-derived cytokines and immunoglobulin E (IgE). In addition, cell-mediated responses and related mechanisms were elucidated using various kinds of primary cells including splenocytes, mesenteric lymph nodes, Peyer's patch, and bone marrow-derived dendritic cells (BMDCs) in vitro and ex vivo. Oral administration of PPKF159 alleviated AD-like clinical symptoms such as erythema, edema, hemorrhage, and increased tissue thickness, and suppressed the production of Th2-associated cytokines and serum IgE while increasing T helper type 1 (Th1)-mediated cytokine production. PPKF159 induced tolerogenic dendritic cells (tol-DCs) by increasing the expression of ICOS-L, PD-L1, and IDO which were closely related to Treg induction in PPKF159-treated BMDCs. In addition, BMDCs and naive T cells co-cultured in the presence of PPKF159 had elevated IL10 production and increased proportions of CD4+CD25+Foxp3+ Tregs compared to the absence of PPKF159. This study showed that PPKF159 relieved AD-like clinical symptoms, modulated the Th1/Th2 immune balance, and inhibited IgE production in a mouse AD model. PPKF159 induced the transformation of dendritic cells into tolerogenic versions. These induced tol-DCs directly enhanced the production of IL10 or improved the secretion of IL10 through the induction of CD4+CD25+Foxp3+ Treg cells, thereby improving AD. These results suggest that PPKF159 can be applied as a functional food material for the treatment and prevention of AD.
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Affiliation(s)
- Ji-Eun Eom
- Food Functionality Research Division, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea.
| | - Dong-Uk Shin
- Food Functionality Research Division, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea.
- Department of Food Biotechnology, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Gun-Dong Kim
- Food Functionality Research Division, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea.
| | - Jung-Hoon Yoon
- Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hee Soon Shin
- Food Functionality Research Division, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea.
- Department of Food Biotechnology, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - So-Young Lee
- Food Functionality Research Division, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea.
- Department of Food Biotechnology, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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Svačina MKR, Gao T, Sprenger-Svačina A, Lin J, Ganesh BP, Lee J, McCullough LD, Sheikh KA, Zhang G. Rejuvenating fecal microbiota transplant enhances peripheral nerve repair in aged mice by modulating endoneurial inflammation. Exp Neurol 2024; 376:114774. [PMID: 38599367 DOI: 10.1016/j.expneurol.2024.114774] [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: 01/23/2024] [Revised: 03/28/2024] [Accepted: 04/06/2024] [Indexed: 04/12/2024]
Abstract
Peripheral nerve injury (PNI) resulting from trauma or neuropathies can cause significant disability, and its prognosis deteriorates with age. Emerging evidence suggests that gut dysbiosis and reduced fecal short-chain fatty acids (SCFAs) contribute to an age-related systemic hyperinflammation (inflammaging), which hinders nerve recovery after injury. This study thus aimed to evaluate the pro-regenerative effects of a rejuvenating fecal microbiota transplant (FMT) in a preclinical PNI model using aged mice. Aged C57BL/6 mice underwent bilateral crush injuries to their sciatic nerves. Subsequently, they either received FMT from young donors at three and four days after the injury or retained their aged gut microbiota. We analyzed gut microbiome composition and SCFA concentrations in fecal samples. The integrity of the ileac mucosal barrier was assessed by immunofluorescence staining of Claudin-1. Flow cytometry was utilized to examine immune cells and cytokine production in the ileum, spleen, and sciatic nerve. Various assessments, including behavioural tests, electrophysiological studies, and morphometrical analyses, were conducted to evaluate peripheral nerve function and repair following injury. Rejuvenating FMT reversed age-related gut dysbiosis by increasing Actinobacteria, especially Bifidobacteriales genera. This intervention also led to an elevation of gut SCFA levels and mitigated age-related ileac mucosal leakiness in aged recipients. Additionally, it augmented the number of T-helper 2 (Th2) and regulatory T (Treg) cells in the ileum and spleen, with the majority being positive for anti-inflammatory interleukin-10 (IL-10). In sciatic nerves, rejuvenating FMT resulted in increased M2 macrophage counts and a higher IL-10 production by IL-10+TNF-α- M2 macrophage subsets. Ultimately, restoring a youthful gut microbiome in aged mice led to improved nerve repair and enhanced functional recovery after PNI. Considering that FMT is already a clinically available technique, exploring novel translational strategies targeting the gut microbiome to enhance nerve repair in the elderly seems promising and warrants further evaluation.
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Affiliation(s)
- Martin K R Svačina
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA; Department of Neurology, Faculty of Medicine and University Hospital of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Tong Gao
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Alina Sprenger-Svačina
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA; Department of Neurology, Faculty of Medicine and University Hospital of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Jianxin Lin
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Bhanu P Ganesh
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Juneyoung Lee
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Louise D McCullough
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Kazim A Sheikh
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Gang Zhang
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA.
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Krajewski D, Ranjitkar S, Tedeschi C, Perez NM, Jordan N, Mire M, Schneider SS, Mathias CB. IL-10 Neutralization Attenuates Mast Cell Responses in a Murine Model of Experimental Food Allergy. Immunohorizons 2024; 8:431-441. [PMID: 38888412 PMCID: PMC11220741 DOI: 10.4049/immunohorizons.2400002] [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: 01/08/2024] [Accepted: 05/29/2024] [Indexed: 06/20/2024] Open
Abstract
IgE-mediated mast cell (MC) activation is a critical component of allergic responses to oral Ags. Several T cell-derived cytokines have been shown to promote MC reactivity, and we recently demonstrated a critical role for the cytokine IL-10 in mediating MC responses during food allergy. In this study, we further validate the role of IL-10 using Ab-mediated IL-10 depletion. IL-10 neutralization significantly attenuated MC responses, leading to decreased MC accumulation and activation, as well as inhibition of MC-mediated symptoms such as allergic diarrhea. This was accompanied by decreased Th2 cytokine gene expression, attenuated systemic T cell responses, and fewer CD4 T cells, B cells, and MCs in the spleen. Our data further confirm the role of IL-10 in driving MC responses and suggest that IL-10-responsive MCs may constitute an important player in allergic responses.
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Affiliation(s)
- Dylan Krajewski
- Department of Pharmaceutical and Administrative Sciences, Western New England University, Springfield, MA
| | - Saurav Ranjitkar
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT
| | - Caitlin Tedeschi
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT
| | | | - Nathan Jordan
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT
| | - Mohamed Mire
- Department of Pharmaceutical and Administrative Sciences, Western New England University, Springfield, MA
| | - Sallie S. Schneider
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, MA
| | - Clinton B. Mathias
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT
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Cammayo-Fletcher PLT, Flores RA, Nguyen BT, Altanzul B, Fernandez-Colorado CP, Kim WH, Devi RM, Kim S, Min W. Identification of Critical Immune Regulators and Potential Interactions of IL-26 in Riemerella anatipestifer-Infected Ducks by Transcriptome Analysis and Profiling. Microorganisms 2024; 12:973. [PMID: 38792803 PMCID: PMC11123779 DOI: 10.3390/microorganisms12050973] [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: 04/02/2024] [Revised: 05/02/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Riemerella anatipestifer (RA) is an economically important pathogen in the duck industry worldwide that causes high mortality and morbidity in infected birds. We previously found that upregulated IL-17A expression in ducks infected with RA participates in the pathogenesis of the disease, but this mechanism is not linked to IL-23, which primarily promotes Th17 cell differentiation and proliferation. RNA sequencing analysis was used in this study to investigate other mechanisms of IL-17A upregulation in RA infection. A possible interaction of IL-26 and IL-17 was discovered, highlighting the potential of IL-26 as a novel upstream cytokine that can regulate IL-17A during RA infection. Additionally, this process identified several important pathways and genes related to the complex networks and potential regulation of the host immune response in RA-infected ducks. Collectively, these findings not only serve as a roadmap for our understanding of RA infection and the development of new immunotherapeutic approaches for this disease, but they also provide an opportunity to understand the immune system of ducks.
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Affiliation(s)
- Paula Leona T. Cammayo-Fletcher
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea; (P.L.T.C.-F.); (R.A.F.); (B.T.N.); (B.A.); (W.H.K.); (S.K.)
| | - Rochelle A. Flores
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea; (P.L.T.C.-F.); (R.A.F.); (B.T.N.); (B.A.); (W.H.K.); (S.K.)
| | - Binh T. Nguyen
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea; (P.L.T.C.-F.); (R.A.F.); (B.T.N.); (B.A.); (W.H.K.); (S.K.)
| | - Bujinlkham Altanzul
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea; (P.L.T.C.-F.); (R.A.F.); (B.T.N.); (B.A.); (W.H.K.); (S.K.)
| | - Cherry P. Fernandez-Colorado
- Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, Los Baños 4031, Philippines;
| | - Woo H. Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea; (P.L.T.C.-F.); (R.A.F.); (B.T.N.); (B.A.); (W.H.K.); (S.K.)
| | - Rajkumari Mandakini Devi
- Department of Veterinary Microbiology, College of Veterinary Sciences & Animal Husbandry, Central Agricultural University (1), Jalukie 797110, India;
| | - Suk Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea; (P.L.T.C.-F.); (R.A.F.); (B.T.N.); (B.A.); (W.H.K.); (S.K.)
| | - Wongi Min
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea; (P.L.T.C.-F.); (R.A.F.); (B.T.N.); (B.A.); (W.H.K.); (S.K.)
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Funchal GA, Schuch JB, Zaparte A, Sanvicente-Vieira B, Viola TW, Grassi-Oliveira R, Bauer ME. Cocaine-use disorder and childhood maltreatment are associated with the activation of neutrophils and increased inflammation. Acta Neuropsychiatr 2024; 36:97-108. [PMID: 36847141 DOI: 10.1017/neu.2023.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
BACKGROUND Cocaine-use disorder (CUD) has been associated with early life adversity and activated cellular immune responses. Women are most vulnerable to complications from chronic substance disorders, generally presenting an intense feeling of abstinence and consuming significant drug amounts. Here, we investigated neutrophil functional activities in CUD, including the formation of neutrophil extracellular traps (NETs) and related intracellular signalling. We also investigated the role of early life stress in inflammatory profiles. METHODS Blood samples, clinical data, and history of childhood abuse or neglect were collected at the onset of detoxification treatment of 41 female individuals with CUD and 31 healthy controls (HCs). Plasma cytokines, neutrophil phagocytosis, NETs, intracellular reactive oxygen species (ROS) generation, and phosphorylated protein kinase B (Akt) and mitogen-activated protein kinases (MAPK)s were assessed by flow cytometry. RESULTS CUD subjects had higher scores of childhood trauma than controls. Increased plasma cytokines (TNF-α, IL-1β, IL-6, IL-8, IL-12, and IL-10), neutrophil phagocytosis, and production of NETs were reported in CUD subjects as compared to HC. Neutrophils of CUD subjects also produced high levels of intracellular ROS and had more activated Akt and MAPKs (p38/ERK), which are essential signalling pathways involved in cell survival and NETs production. Childhood trauma scores were significantly associated with neutrophil activation and peripheral inflammation. CONCLUSION Our study reinforces that smoked cocaine and early life stress activate neutrophils in an inflammatory environment.
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Affiliation(s)
- Giselle A Funchal
- Laboratory of Immunobiology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Jaqueline B Schuch
- Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Aline Zaparte
- Developmental Cognitive Neuroscience Lab, School of Medicine, Brain Institute of the Rio Grande do Sul (InsCer), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
- LSU Health New Orleans School of Medicine, Pulmonary/Critical Care & Allergy/Immunology, New Orleans, LA, USA
| | - Breno Sanvicente-Vieira
- Developmental Cognitive Neuroscience Lab, School of Medicine, Brain Institute of the Rio Grande do Sul (InsCer), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Thiago W Viola
- Developmental Cognitive Neuroscience Lab, School of Medicine, Brain Institute of the Rio Grande do Sul (InsCer), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Rodrigo Grassi-Oliveira
- Developmental Cognitive Neuroscience Lab, School of Medicine, Brain Institute of the Rio Grande do Sul (InsCer), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Moisés E Bauer
- Laboratory of Immunobiology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
- National Institute of Science and Technology - Neuroimmunomodulation (INCT-NIM), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, DF, Brazil
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Mofrad LZ, Fateh A, Sotoodehnejadnematalahi F, Asbi DNS, Davar Siadat S. The Effect of Akkermansia muciniphila and Its Outer Membrane Vesicles on MicroRNAs Expression of Inflammatory and Anti-inflammatory Pathways in Human Dendritic Cells. Probiotics Antimicrob Proteins 2024; 16:367-382. [PMID: 36884184 DOI: 10.1007/s12602-023-10058-6] [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] [Accepted: 03/02/2023] [Indexed: 03/09/2023]
Abstract
Probiotics play a crucial role in immunomodulation by regulating dendritic cell (DC) maturation and inducing tolerogenic DCs. Akkermansia muciniphila affects inflammatory response by elevating inhibitory cytokines. We aimed to evaluate whether Akkermansia muciniphila and its outer membrane vesicles (OMVs) affect microRNA-155, microRNA-146a, microRNA-34a, and let-7i expression of inflammatory and anti-inflammatory pathways. Peripheral blood mononuclear cells (PBMCs) were isolated from the healthy volunteers. To produce DCs, monocytes were cultivated with granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin-4 (IL-4). DCs were allocated into six subgroups: DC + Lipopolysaccharide (LPS), DC + dexamethasone, DC + A. muciniphila (MOI 100, 50), DC + OMVs (50 µg/ml), and DC + PBS. The surface expression of human leukocyte antigen-antigen D related (HLA-DR), CD86, CD80, CD83, CD11c, and CD14 was examined using flow cytometry, and the expression of microRNAs was assessed using qRT-PCR, and the levels of IL-12 and IL-10 were measured using ELISA. A. muciniphila (MOIs 50, 100) could significantly decrease IL-12 levels relative to the LPS group. The IL-10 levels were decreased in the DC + LPS group than the DC + dexamethasone group. Treatment with A. muciniphila (MOI 100) and OMVs could elevate the concentrations of IL-10. DC treatment with LPS led to a significant increment in the expression of microRNA-155, microRNA-34a, and microRNA-146a. The expression of these microRNAs was reversed by A. muciniphilia and its OMVs treatment. Let-7i increased in treatment groups compared to the DC + LPS group. A. muciniphilia (MOI 50) had a substantial effect on the expression of HLA-DR, CD80, and CD83 on DCs. Therefore, DCs treatment with A. muciniphila led to induce tolerogenic DCs and the production of anti-inflammatory IL-10.
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Affiliation(s)
- Laya Zoghi Mofrad
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Abolfazl Fateh
- Department of Mycobacteriology and Pulmonary Research, Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | | | | | - Seyed Davar Siadat
- Department of Mycobacteriology and Pulmonary Research, Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran.
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Jia L, Xiao L, Fu Y, Shao Z, Jing Z, Yuan J, Xie Y, Guo J, Wang Y, Geng W. Neuroprotective effects of probiotics on anxiety- and depression-like disorders in stressed mice by modulating tryptophan metabolism and the gut microbiota. Food Funct 2024; 15:2895-2905. [PMID: 38404190 DOI: 10.1039/d3fo03897a] [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: 02/27/2024]
Abstract
Anxiety- and depression-like behaviors are commonly observed clinical features of depression and many other mental disorders. Recent evidence has revealed the crucial role of the microbiota-gut-brain axis in the bidirectional communication between the gastrointestinal tract and the central nervous system. Supplementation with psychobiotics may provide a novel approach for the adjunctive treatment of mental disorders by regulating the intestinal microecology. We isolated and identified a novel probiotic, Lactiplantibacillus plantarum D-9 (D-9), from traditional Chinese fermented foods in our previous work, which exhibited a high yield of gamma-aminobutyric acid (GABA). Herein, it was proved that the oral administration of D-9 could alleviate the depression- and anxiety-like behaviors of Chronic Unpredicted Mild Stress (CUMS) mice, and show non-toxicity or side-effects in the mice. Physiological and biochemical analyses demonstrated that D-9 regulated tryptophan metabolism, the HPA-axis and inflammation in CUMS mice. Moreover, D-9 modulated the structure and composition of the gut microbiota, leading to an increase in the relative abundance of Ligilactobacillus murinus and Lactobacillus johnsonii, and a decrease in the levels of Kineothrix alysoides and Helicobacter bilis compared to those in CUMS mice. Our work demonstrates that D-9 alleviated anxiety- and depression-like disorders in CUMS mice by modulating tryptophan metabolism and the gut microbiota. These findings provide an innovative strategy for the intervention and treatment of depressive disorders.
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Affiliation(s)
- Longgang Jia
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
| | - Ling Xiao
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
| | - Yao Fu
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
| | - Zhen Shao
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
| | - Zhaoxuan Jing
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
| | - Jiahu Yuan
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
| | - Yufeng Xie
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
- College of Food Science and Engineering, Harbin University, Harbin 150086, P. R. China
| | - Jun Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
| | - Yanping Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
| | - Weitao Geng
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China.
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Li F, Zhao H, Sui L, Yin F, Liu X, Guo G, Li J, Jiang Y, Cui W, Shan Z, Zhou H, Wang L, Qiao X, Tang L, Wang X, Li Y. Assessing immunogenicity of CRISPR-NCas9 engineered strain against porcine epidemic diarrhea virus. Appl Microbiol Biotechnol 2024; 108:248. [PMID: 38430229 PMCID: PMC10908614 DOI: 10.1007/s00253-023-12989-0] [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: 07/04/2023] [Revised: 12/18/2023] [Accepted: 12/26/2023] [Indexed: 03/03/2024]
Abstract
Porcine epidemic diarrhea (PED) caused by porcine epidemic diarrhea virus (PEDV), is an acute and highly infectious disease, resulting in substantial economic losses in the pig industry. Given that PEDV primarily infects the mucosal surfaces of the intestinal tract, it is crucial to improve the mucosal immunity to prevent viral invasion. Lactic acid bacteria (LAB) oral vaccines offer unique advantages and potential applications in combatting mucosal infectious diseases, making them an ideal approach for controlling PED outbreaks. However, traditional LAB oral vaccines use plasmids for exogenous protein expression and antibiotic genes as selection markers. Antibiotic genes can be diffused through transposition, transfer, or homologous recombination, resulting in the generation of drug-resistant strains. To overcome these issues, genome-editing technology has been developed to achieve gene expression in LAB genomes. In this study, we used the CRISPR-NCas9 system to integrate the PEDV S1 gene into the genome of alanine racemase-deficient Lactobacillus paracasei △Alr HLJ-27 (L. paracasei △Alr HLJ-27) at the thymidylate synthase (thyA) site, generating a strain, S1/△Alr HLJ-27. We conducted immunization assays in mice and piglets to evaluate the level of immune response and evaluated its protective effect against PEDV through challenge tests in piglets. Oral administration of the strain S1/△Alr HLJ-27 in mice and piglets elicited mucosal, humoral, and cellular immune responses. The strain also exhibited a certain level of resistance against PEDV infection in piglets. These results demonstrate the potential of S1/△Alr HLJ-27 as an oral vaccine candidate for PEDV control. KEY POINTS: • A strain S1/△Alr HLJ-27 was constructed as the candidate for an oral vaccine. • Immunogenicity response and challenge test was carried out to analyze the ability of the strain. • The strain S1/△Alr HLJ-27 could provide protection for piglets to a certain extent.
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Affiliation(s)
- Fengsai Li
- Hebei Key Laboratory of Preventive Veterinary Medicine, College of Animal Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, 066004, China
| | - Haiyuan Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Ling Sui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Fangjie Yin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Xinzi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Guihai Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Jiaxuan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China
| | - Yanping Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China
| | - Wen Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China
| | - Zhifu Shan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China
| | - Han Zhou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China
| | - Li Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China
| | - Xinyuan Qiao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China
| | - Lijie Tang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China
| | - Xiaona Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China.
| | - Yijing Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, 150030, China.
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Ben Khlil AA, Zamali I, Belloumi D, Gdoura M, Kharroubi G, Marzouki S, Dachraoui R, Ben Yaiche I, Bchiri S, Hamdi W, Gharbi M, Ben Hmid A, Samoud S, Galai Y, Torjmane L, Ladeb S, Bettaieb J, Triki H, Ben Abdeljelil N, Ben Othman T, Ben Ahmed M. Immunogenicity and Tolerance of BNT162b2 mRNA Vaccine in Allogeneic Hematopoietic Stem Cell Transplant Patients. Vaccines (Basel) 2024; 12:174. [PMID: 38400157 PMCID: PMC10892348 DOI: 10.3390/vaccines12020174] [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: 12/28/2023] [Revised: 01/22/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Allogeneic hematopoietic stem cell transplantation (ASCT) induces acquired immunodeficiency, potentially altering vaccine response. Herein, we aimed to explore the clinical tolerance and the humoral and cellular immune responses following anti-SARS-CoV-2 vaccination in ASCT recipients. METHODS A prospective, non-randomized, controlled study that involved 43 ASCT subjects and 31 healthy controls. Humoral response was investigated using the Elecsys® test anti-SARS-CoV-2. Cellular response was assessed using the QFN® SARS-CoV-2 test. The lymphocyte cytokine profile was tested using the LEGENDplex™ HU Th Cytokine Panel Kit (12-plex). RESULTS Adverse effects (AE) were observed in 69% of patients, encompassing pain at the injection site, fever, asthenia, or headaches. Controls presented more side effects like pain in the injection site and asthenia with no difference in the overall AE frequency. Both groups exhibited robust humoral and cellular responses. Only the vaccine transplant delay impacted the humoral response alongside a previous SARS-CoV-2 infection. Noteworthily, controls displayed a Th1 cytokine profile, while patients showed a mixed Th1/Th2 profile. CONCLUSIONS Pfizer-BioNTech® anti-SARS-CoV-2 vaccination is well tolerated in ASCT patients, inducing robust humoral and cellular responses. Further exploration is warranted to understand the impact of a mixed cytokine profile in ASCT patients.
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Affiliation(s)
- Ahmed Amine Ben Khlil
- Department of Clinical Immunology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (A.A.B.K.); (I.Z.); (W.H.); (A.B.H.); (S.S.); (Y.G.)
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
| | - Imen Zamali
- Department of Clinical Immunology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (A.A.B.K.); (I.Z.); (W.H.); (A.B.H.); (S.S.); (Y.G.)
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Laboratory of Transmission, Control and Immunobiology of Infections (LR16IPT02), Institut Pasteur de Tunis, Tunis 1002, Tunisia; (S.M.); (S.B.)
| | - Dorra Belloumi
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Department of Hematology and Transplant, Centre National de Greffe de Moelle Osseuse, Tunis 1006, Tunisia
| | - Mariem Gdoura
- Laboratory of Virology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (M.G.); (M.G.)
- Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia
| | - Ghassen Kharroubi
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Laboratory of Transmission, Control and Immunobiology of Infections (LR16IPT02), Institut Pasteur de Tunis, Tunis 1002, Tunisia; (S.M.); (S.B.)
- Department of Medical Epidemiology, Institut Pasteur de Tunis, Tunis 1002, Tunisia
| | - Soumaya Marzouki
- Laboratory of Transmission, Control and Immunobiology of Infections (LR16IPT02), Institut Pasteur de Tunis, Tunis 1002, Tunisia; (S.M.); (S.B.)
| | - Rym Dachraoui
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Department of Hematology and Transplant, Centre National de Greffe de Moelle Osseuse, Tunis 1006, Tunisia
| | - Insaf Ben Yaiche
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Department of Hematology and Transplant, Centre National de Greffe de Moelle Osseuse, Tunis 1006, Tunisia
| | - Soumaya Bchiri
- Laboratory of Transmission, Control and Immunobiology of Infections (LR16IPT02), Institut Pasteur de Tunis, Tunis 1002, Tunisia; (S.M.); (S.B.)
| | - Walid Hamdi
- Department of Clinical Immunology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (A.A.B.K.); (I.Z.); (W.H.); (A.B.H.); (S.S.); (Y.G.)
| | - Manel Gharbi
- Laboratory of Virology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (M.G.); (M.G.)
| | - Ahlem Ben Hmid
- Department of Clinical Immunology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (A.A.B.K.); (I.Z.); (W.H.); (A.B.H.); (S.S.); (Y.G.)
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Laboratory of Transmission, Control and Immunobiology of Infections (LR16IPT02), Institut Pasteur de Tunis, Tunis 1002, Tunisia; (S.M.); (S.B.)
| | - Samar Samoud
- Department of Clinical Immunology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (A.A.B.K.); (I.Z.); (W.H.); (A.B.H.); (S.S.); (Y.G.)
- Laboratory of Transmission, Control and Immunobiology of Infections (LR16IPT02), Institut Pasteur de Tunis, Tunis 1002, Tunisia; (S.M.); (S.B.)
| | - Yousr Galai
- Department of Clinical Immunology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (A.A.B.K.); (I.Z.); (W.H.); (A.B.H.); (S.S.); (Y.G.)
- Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia
| | - Lamia Torjmane
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Department of Hematology and Transplant, Centre National de Greffe de Moelle Osseuse, Tunis 1006, Tunisia
| | - Saloua Ladeb
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Department of Hematology and Transplant, Centre National de Greffe de Moelle Osseuse, Tunis 1006, Tunisia
| | - Jihene Bettaieb
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Laboratory of Transmission, Control and Immunobiology of Infections (LR16IPT02), Institut Pasteur de Tunis, Tunis 1002, Tunisia; (S.M.); (S.B.)
- Department of Medical Epidemiology, Institut Pasteur de Tunis, Tunis 1002, Tunisia
| | - Henda Triki
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Laboratory of Virology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (M.G.); (M.G.)
| | - Nour Ben Abdeljelil
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Department of Hematology and Transplant, Centre National de Greffe de Moelle Osseuse, Tunis 1006, Tunisia
| | - Tarek Ben Othman
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Department of Hematology and Transplant, Centre National de Greffe de Moelle Osseuse, Tunis 1006, Tunisia
| | - Melika Ben Ahmed
- Department of Clinical Immunology, Institut Pasteur de Tunis, Tunis 1002, Tunisia; (A.A.B.K.); (I.Z.); (W.H.); (A.B.H.); (S.S.); (Y.G.)
- Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis 1068, Tunisia; (D.B.); (G.K.); (R.D.); (I.B.Y.); (L.T.); (S.L.); (J.B.); (H.T.); (N.B.A.); (T.B.O.)
- Laboratory of Transmission, Control and Immunobiology of Infections (LR16IPT02), Institut Pasteur de Tunis, Tunis 1002, Tunisia; (S.M.); (S.B.)
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10
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Hisanaga M, Tsuchiya T, Watanabe H, Shimoyama K, Iwatake M, Tanoue Y, Maruyama K, Yukawa H, Sato K, Kato Y, Matsumoto K, Miyazaki T, Doi R, Tomoshige K, Nagayasu T. Adipose-Derived Mesenchymal Stem Cells Attenuate Immune Reactions Against Pig Decellularized Bronchi Engrafted into Rat Tracheal Defects. Organogenesis 2023; 19:2212582. [PMID: 37183703 DOI: 10.1080/15476278.2023.2212582] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
Decellularized scaffolds are promising biomaterials for tissue and organ reconstruction; however, strategies to effectively suppress the host immune responses toward these implants, particularly those without chemical crosslinking, remain warranted. Administration of mesenchymal stem cells is effective against immune-mediated inflammatory disorders. Herein, we investigated the effect of isogeneic abdominal adipose-derived mesenchymal stem/stromal cells (ADMSCs) on xenogeneic biomaterial-induced immunoreactions. Peripheral bronchi from pigs, decellularized using a detergent enzymatic method, were engrafted onto tracheal defects of Brown Norway (BN) rats. BN rats were implanted with native pig bronchi (Xenograft group), decellularized pig bronchi (Decellularized Xenograft), or Decellularized Xenograft and ADMSCs (Decellularized Xenograft+ADMSC group). In the latter group, ADMSCs were injected intravenously immediately post implantation. Harvested graft implants were assessed histologically and immunohistochemically. We found that acute rejections were milder in the Decellularized Xenograft and Decellularized Xenograft+ADMSC groups than in the Xenograft group. Mild inflammatory cell infiltration and reduced collagen deposition were observed in the Decellularized Xenograft+ADMSC group. Additionally, ADMSC administration decreased CD8+ lymphocyte counts but increased CD163+ cell counts. In the Decellularized Xenograft+ADMSC group, serum levels of vascular endothelial growth factor and IL-10 were elevated and tissue deposition of IgM and IgG was low. The significant immunosuppressive effects of ADMSCs illustrate their potential use as immunosuppressive agents for xenogeneic biomaterial-based implants.
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Affiliation(s)
- Makoto Hisanaga
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomoshi Tsuchiya
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Thoracic Surgery, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Hironosuke Watanabe
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Koichiro Shimoyama
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mayumi Iwatake
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yukinori Tanoue
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Keizaburo Maruyama
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hiroshi Yukawa
- Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University, Nagoya, Japan
- Institute of Quantum Life Science, Quantum Life and Medical Siceince Directorate, National Institure for Quantum Science and Technology, Chiba, Japan
| | - Kazuhide Sato
- Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University, Nagoya, Japan
| | - Yoshimi Kato
- Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University, Nagoya, Japan
| | - Keitaro Matsumoto
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Medical-Engineering Hybrid Professional Development Center, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takuro Miyazaki
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ryoichiro Doi
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Koichi Tomoshige
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takeshi Nagayasu
- Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Medical-Engineering Hybrid Professional Development Center, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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11
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Yasuda M, Uzawa A, Ozawa Y, Kojima Y, Onishi Y, Akamine H, Kuwabara S. Serum cytokine profiles in myasthenia gravis with anti-muscle-specific kinase antibodies. J Neuroimmunol 2023; 384:578205. [PMID: 37774555 DOI: 10.1016/j.jneuroim.2023.578205] [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: 01/24/2023] [Revised: 08/24/2023] [Accepted: 09/19/2023] [Indexed: 10/01/2023]
Abstract
This study measured the serum levels of of 15 cytokines in 15 patients with anti-muscle-specific kinase antibody-positive MG (MuSK-MG) using a multiplex suspension array system. Fifteen patients with non-inflammatory neurological diseases served as controls. Compared with controls, patients with MuSK-MG showed higher levels of Th1- (IFN-γ), Th2- (IL-25, IL-31, and IL-33), Th17- (IL-22), Treg-related cytokines (IL-10), and soluble CD40 ligand (sCD40L). Higher serum Th2-related cytokines (IL-25 and IL-31) levels were correlated with less MG Foundation of America (MGFA) class. These suggest that Th2-related cytokines have protective effects, whereas sCD40L and others may facilitate the disease.
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Affiliation(s)
- Manato Yasuda
- Department of Neurology, Graduate School of Medicine, Chiba University, Japan
| | - Akiyuki Uzawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Japan.
| | - Yukiko Ozawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Japan; Department of Neurology, Japanese Red Cross Narita Hospital, Japan
| | - Yuta Kojima
- Department of Neurology, Graduate School of Medicine, Chiba University, Japan; Department of Neurology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yosuke Onishi
- Department of Neurology, Graduate School of Medicine, Chiba University, Japan
| | - Hiroyuki Akamine
- Department of Neurology, Graduate School of Medicine, Chiba University, Japan
| | - Satoshi Kuwabara
- Department of Neurology, Graduate School of Medicine, Chiba University, Japan
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12
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Hong D, Hu Z, Weng J, Yang L, Xiong Y, Liu Y. Effect of mesenchymal stem cell therapy in animal models of allergic rhinitis: A systematic review and meta-analysis. Int Immunopharmacol 2023; 124:111003. [PMID: 37806104 DOI: 10.1016/j.intimp.2023.111003] [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: 03/09/2023] [Revised: 09/06/2023] [Accepted: 09/25/2023] [Indexed: 10/10/2023]
Abstract
BACKGROUND Allergic rhinitis (AR) is a worldwide problem that affects people of all ages, impairing patients' physical and mental health and causing great social expenditure. Animal studies have suggested the potential efficacy of mesenchymal stem cell (MSC) therapy in treating AR. Our meta-analysis was performed to evaluate the effect of MSC therapy in animal models of AR by pooling animal studies. METHODS The search was executed in PubMed, Embase, Web of Science, OVID, and the Cochrane Library for relevant studies up to February 2023. The applicable data were extracted from the eligible studies, and the risk of bias was assessed for each study. The meta-analysis was conducted using Review Manager (version 5.4.1) and Stata (version 15.1). RESULTS A total of 12 studies were included in the final analysis. Compared to the model control group, the MSC therapy group presented lower frequency of sneezing [(Standardized mean difference (SMD) -1.87, 95% CI -2.30 to -1.43)], nasal scratching (SMD -1.41, 95% CI -1.83 to -0.99), and overall nasal symptoms (SMD -1.88, 95% CI -3.22 to -0.54). There were also remarkable reductions after transplantation with MSCs in the levels of total immunoglobulin E (IgE) (SMD -1.25, 95% CI -1.72 to -0.79), allergen-specific IgE (SMD -1.79, 95% CI -2.25 to -1.32), and allergen-specific immunoglobulin G1 (SMD -1.29, 95% CI -2.03) in serum, as well as the count of eosinophils (EOS) in nasal mucosa (SMD -3.48, 95% CI -4.48 to -2.49). In terms of cytokines, MSC therapy significantly decreased both protein and mRNA levels of T helper cell 2 (Th2)-related cytokines, including interleukin (IL)-4, IL-5, IL-10, and IL-13. CONCLUSION MSC therapy has the potential to be an effective clinical treatment for AR patients by attenuating Th2 immune responses, reducing secretion of IgE and nasal infiltration of EOS, and consequently alleviating nasal symptoms.
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Affiliation(s)
- Dongdong Hong
- Department of Otorhinolaryngology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, China
| | - Zhen Hu
- Department of Otorhinolaryngology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, China
| | - Juanling Weng
- Department of Otorhinolaryngology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, China
| | - Long Yang
- Department of Otorhinolaryngology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, China
| | - Yalan Xiong
- Department of Otorhinolaryngology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, China
| | - Yuanxian Liu
- Department of Otorhinolaryngology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen 518033, China.
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13
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Al-Janabi A, Martin P, Khan AR, Foulkes AC, Smith CH, Griffiths CEM, Morris AP, Eyre S, Warren RB. Integrated proteomics and genomics analysis of paradoxical eczema in psoriasis patients treated with biologics. J Allergy Clin Immunol 2023; 152:1237-1246. [PMID: 37536512 DOI: 10.1016/j.jaci.2023.07.011] [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: 02/20/2023] [Revised: 07/10/2023] [Accepted: 07/21/2023] [Indexed: 08/05/2023]
Abstract
BACKGROUND Few studies have explored the immunology and genetic risk of paradoxical eczema occurring as an adverse event of biologic therapy in patients with psoriasis. OBJECTIVES We sought to describe the systemic inflammatory signature of paradoxical eczema using proteomics and explore whether this is genetically mediated. METHODS This study used the Olink Target 96 Inflammation panel on 256 serum samples from 71 patients with psoriasis and paradoxical eczema, and 75 controls with psoriasis to identify differentially expressed proteins and enriched gene sets. Case samples from 1 or more time points (T1 prebiologic, T2 postbiologic, and T3 postparadoxical eczema) were matched 1:1 with control samples. Genes contributing to enriched gene sets were selected, and functional single nucleotide polymorphisms used to create polygenic risk scores in a genotyped cohort of 88 paradoxical eczema cases and 3124 psoriasis controls. RESULTS STAMBP expression was lower in cases at T1 than in controls (log-fold change: -0.44; adjusted P = .022); no other proteins reached statistical significance at equivalent time points. Eleven gene sets including cytokine and chemokine pathways were enriched in cases at T2 and 10 at T3. Of the 39 proteins contributing to enriched gene sets, the majority are associated with the atopic dermatitis serum proteome. A polygenic risk score including 38 functional single nucleotide polymorphisms linked to enriched gene sets was associated with paradoxical eczema (adjusted P = .046). CONCLUSIONS The paradoxical eczema systemic inflammatory proteome trends toward atopic dermatitis at a gene-set level and is detectable before onset of the phenotype. This signature could be genetically determined.
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Affiliation(s)
- Ali Al-Janabi
- Centre for Dermatology Research, Northern Care Alliance NHS Foundation Trust, The University of Manchester, Manchester Academic Health Science Centre, NIHR Manchester Biomedical Research Centre, Manchester, United Kingdom.
| | - Paul Martin
- Centre for Genetics and Genomics Versus Arthritis, Centre for Musculoskeletal Research, University of Manchester, Manchester, United Kingdom; The Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | | | - Amy C Foulkes
- Centre for Dermatology Research, Northern Care Alliance NHS Foundation Trust, The University of Manchester, Manchester Academic Health Science Centre, NIHR Manchester Biomedical Research Centre, Manchester, United Kingdom
| | - Catherine H Smith
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, Faculty of Life Sciences and Medicine, King's College London, United Kingdom; St. John's Institute of Dermatology, Guy's and St Thomas' National Health Service Foundation Trust, London, United Kingdom
| | - Christopher E M Griffiths
- Centre for Dermatology Research, Northern Care Alliance NHS Foundation Trust, The University of Manchester, Manchester Academic Health Science Centre, NIHR Manchester Biomedical Research Centre, Manchester, United Kingdom
| | - Andrew P Morris
- Centre for Dermatology Research, Northern Care Alliance NHS Foundation Trust, The University of Manchester, Manchester Academic Health Science Centre, NIHR Manchester Biomedical Research Centre, Manchester, United Kingdom; Centre for Genetics and Genomics Versus Arthritis, Centre for Musculoskeletal Research, University of Manchester, Manchester, United Kingdom
| | - Steve Eyre
- Centre for Dermatology Research, Northern Care Alliance NHS Foundation Trust, The University of Manchester, Manchester Academic Health Science Centre, NIHR Manchester Biomedical Research Centre, Manchester, United Kingdom; Centre for Genetics and Genomics Versus Arthritis, Centre for Musculoskeletal Research, University of Manchester, Manchester, United Kingdom
| | - Richard B Warren
- Centre for Dermatology Research, Northern Care Alliance NHS Foundation Trust, The University of Manchester, Manchester Academic Health Science Centre, NIHR Manchester Biomedical Research Centre, Manchester, United Kingdom
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14
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Yang R, Yang M, Wu Z, Liu B, Zheng M, Lu L, Wu S. Tespa1 deficiency reduces the antitumour immune response by decreasing CD8 +T cell activity in a mouse Lewis lung cancer model. Int Immunopharmacol 2023; 124:110865. [PMID: 37660596 DOI: 10.1016/j.intimp.2023.110865] [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: 06/05/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/05/2023]
Abstract
Thymocyte-expressed, positive selection-associated 1 (Tespa1) is a key molecule in T-cell development and has been linked to immune diseases. However, its role in antitumour CD8+T cell immunity remains unclear. Here, we demonstrated that Tespa1 plays an important role in antitumour CD8+T cell immunity. First, compared with wild-type (WT) mice, Lewis lung cancer cells grew faster in Tespa1 knockout (Tespa1-/-) mice, with reduced apoptosis, and decreased CD8+T cells in peripheral blood and tumor tissues. Second, the proportion of CD8+T and Th1 cells in the splenocytes of Tespa1-/- mice was lower than that in WT mice. Third, Tespa1-/- CD8+ tumor-infiltrating lymphocytes (TILs) showed weakened proliferation, invasion, cytotoxicity, and protein expression of IL-2 signalling pathway components compared to WT CD8+TILs. Furthermore, PD-1 expression in CD8+TILs was higher in Tespa1-/- than in WT mice. Lastly, CD8+TILs in WT mice improved the antitumour ability of Tespa1-/- mice. In conclusion, these findings suggest that Tespa1 plays a critical role in the tumor immune system by regulating CD8+T cells.
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Affiliation(s)
- Ruhui Yang
- School of Medicine and Pharmaceutical Engineering, Taizhou Vocational and Technical College, Taizhou 318000, China; Department of Pharmacology, Lishui University School of Medicine, Lishui 323000, China
| | - Mingyue Yang
- The First Clinical Department, China Medical University, Shenyang 110122, China
| | - Zehua Wu
- Faculty of Science and Engineering, University of Nottingham, Ningbo, 315000, China
| | - Bingjin Liu
- School of Medicine and Pharmaceutical Engineering, Taizhou Vocational and Technical College, Taizhou, 318000, China
| | - Mingzhu Zheng
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, Nanjing, 210003, China
| | - Linrong Lu
- Institute of Immunology, School of Medicine, Zhejiang University, Hangzhou, 310000, China
| | - Songquan Wu
- Department of Immunology, Lishui University School of Medicine, Lishui 323000, China.
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15
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Clement M. The association of microbial infection and adaptive immune cell activation in Alzheimer's disease. DISCOVERY IMMUNOLOGY 2023; 2:kyad015. [PMID: 38567070 PMCID: PMC10917186 DOI: 10.1093/discim/kyad015] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 07/31/2023] [Accepted: 09/04/2023] [Indexed: 04/04/2024]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder and the most common form of dementia. Early symptoms include the loss of memory and mild cognitive ability; however, as the disease progresses, these symptoms can present with increased severity manifesting as mood and behaviour changes, disorientation, and a loss of motor/body control. AD is one of the leading causes of death in the UK, and with an ever-increasing ageing society, patient numbers are predicted to rise posing a significant global health emergency. AD is a complex neurophysiological disorder where pathology is characterized by the deposition and aggregation of misfolded amyloid-beta (Aβ)-protein that in-turn promotes excessive tau-protein production which together drives neuronal cell dysfunction, neuroinflammation, and neurodegeneration. It is widely accepted that AD is driven by a combination of both genetic and immunological processes with recent data suggesting that adaptive immune cell activity within the parenchyma occurs throughout disease. The mechanisms behind these observations remain unclear but suggest that manipulating the adaptive immune response during AD may be an effective therapeutic strategy. Using immunotherapy for AD treatment is not a new concept as the only two approved treatments for AD use antibody-based approaches to target Aβ. However, these have been shown to only temporarily ease symptoms or slow progression highlighting the urgent need for newer treatments. This review discusses the role of the adaptive immune system during AD, how microbial infections may be contributing to inflammatory immune activity and suggests how adaptive immune processes can pose as therapeutic targets for this devastating disease.
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Affiliation(s)
- Mathew Clement
- Division of Infection and Immunity, Systems Immunity University Research Institute, Cardiff University, Cardiff, UK
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16
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Liu A, Liang X, Wang W, Wang C, Song J, Guo J, Sun D, Wang D, Song M, Qian J, Zhang X. Human umbilical cord mesenchymal stem cells ameliorate colon inflammation via modulation of gut microbiota-SCFAs-immune axis. Stem Cell Res Ther 2023; 14:271. [PMID: 37749611 PMCID: PMC10521524 DOI: 10.1186/s13287-023-03471-9] [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: 04/01/2023] [Accepted: 08/23/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND Inflammatory bowel disease (IBD) is a global health problem in which gut microbiota dysbiosis plays a pivotal pathogenic role. Mesenchymal stem cells (MSCs) therapy has emerged as a prospective novel tool for managing IBD, and which can also regulate the composition of gut microbiota. However, the functional significance of MSCs-induced changes in gut microbiome is poorly understood. METHODS Here, we investigated for the first time the role of gut microbiota in mediating the protective effect of human umbilical cord MSCs (HUMSCs) on DSS-induced colitis. Gut microbiota alteration and short-chain fatty acids (SCFAs) production were analyzed through 16S rRNA sequencing and targeted metabolomics. Spectrum antibiotic cocktail (ABX), fecal microbiota transplantation (FMT) and sterile fecal filtrate (SFF) were employed to evaluate the protective effect of intestinal flora and its metabolites. Cytokine microarray, Enzyme-linked immunosorbent assay (ELISA), and flow cytometry were conducted to assess the effect on CD4+T homeostasis. RESULTS Here, we investigated for the first time the role of gut microbiota in mediating the protective effect of MSCs on DSS-induced colitis. By performing gut microbiota depletion and fecal microbiota transplantation (FMT) experiments, we revealed that MSCs derived from human umbilical cord ameliorated colon inflammation and reshaped T-cells immune homeostasis via remodeling the composition and diversity of gut flora, especially up-regulated SCFAs-producing bacterial abundance, such as Akkermansia, Faecalibaculum, and Clostridia_UCG_014. Consistently, targeted metabolomics manifested the increased SCFAs production with MSCs administration, and there was also a significant positive correlation between differential bacteria and SCFAs. Meanwhile, combined with sterile fecal filtrate (SFF) gavage experiments, the underlying protective mechanism was further associated with the improved Treg/Th2/Th17 balance in intestinal mucosa mediated via the increased microbiota-derived SCFAs production. CONCLUSION The present study advances understanding of MSCs in the protective effects on colitis, providing evidence for the new role of the microbiome-metabolite-immune axis in the recovery of colitis by MSCs.
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Affiliation(s)
- Airu Liu
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China
| | - Xiaonan Liang
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China
| | - Wenxin Wang
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China
| | - Chen Wang
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China
| | - Jia Song
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China
| | - Jinbo Guo
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China
| | - Donglei Sun
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China
| | - Dong Wang
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China
| | - Mei Song
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China
| | - Jiaming Qian
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China.
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing City, China.
| | - Xiaolan Zhang
- Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang City, China.
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Godala M, Gaszyńska E, Walczak K, Małecka-Wojciesko E. Role of Serum Interleukin-6, Interleukin-1β and Interleukin-10 in Assessment of Disease Activity and Nutritional Status in Patients with Inflammatory Bowel Disease. J Clin Med 2023; 12:5956. [PMID: 37762896 PMCID: PMC10532332 DOI: 10.3390/jcm12185956] [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: 08/29/2023] [Revised: 09/10/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Inflammatory bowel diseases (IBD) are characterised by multifactorial and chronic inflammation. Much attention has been paid to immune dysfunction in inflammatory bowel diseases. The aim of this study was to assess the usefulness of serum IL-6, IL-1β and IL-10 in determining the activity and nutritional status in IBD patients. The case-control study was carried out on 82 patients with IBD; the control group consisted of 25 clinically healthy subjects. The serum concentrations of IL-6, IL-1 β and IL-10 were determined by the quantitative sandwich enzyme-linked immunosorbent assay. There were no significant differences in IL-6 and IL-1β levels in UC and CD patients according to disease activity as assessed by the Montreal classification, Partial Mayo Score and CDAI. Significantly higher IL-6 levels were found in patients with low body fat in comparison to patients with normal body fat. Furthermore, significantly higher mean IL-6 levels were observed in patients with excess body fat in comparison to patients with normal body fat, and also in comparison to patients with deficient body fat. IL-6 and IL-1β may provide extra information regarding the nutritional status of IBD patients. IL-10 can be considered a non-invasive biomarker of IBD activity.
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Affiliation(s)
- Małgorzata Godala
- Department of Nutrition and Epidemiology, Medical University of Lodz, 90-752 Lodz, Poland;
| | - Ewelina Gaszyńska
- Department of Nutrition and Epidemiology, Medical University of Lodz, 90-752 Lodz, Poland;
| | - Konrad Walczak
- Department of Internal Medicine and Nephrodiabetology, Medical University of Lodz, 90-549 Lodz, Poland;
| | - Ewa Małecka-Wojciesko
- Department of Digestive Tract Diseases, Medical University of Lodz, 90-419 Lodz, Poland;
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18
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Chen J, He Y, Zhong H, Hu F, Li Y, Zhang Y, Zhang X, Lin W, Li Q, Xu F, Chen S, Zhang H, Cai W, Li L. Transcriptome analysis of CD4+ T cells from HIV-infected individuals receiving ART with LLV revealed novel transcription factors regulating HIV-1 promoter activity. Virol Sin 2023:S1995-820X(23)00022-6. [PMID: 36907331 DOI: 10.1016/j.virs.2023.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 03/06/2023] [Indexed: 03/12/2023] Open
Abstract
Some HIV-infected individuals receiving ART develop low-level viremia (LLV), with a plasma viral load of 50-1000 copies/mL. Persistent low-level viremia is associated with subsequent virologic failure. The peripheral blood CD4+ T cell pool is a source of LLV. However, the intrinsic characteristics of CD4+ T cells in LLV which may contribute to low-level viremia are largely unknown. We analyzed the transcriptome profiling of peripheral blood CD4+ T cells from healthy controls (HC) and HIV-infected patients receiving ART with either virologic suppression (VS) or LLV. To identify pathways potentially responding to increasing viral loads from HC to VS and to LLV, KEGG pathways of differentially expressed genes (DEGs) were acquired by comparing VS with HC (VS-HC group) and LLV with VS (LLV-VS group). Characterization of DEGs in key overlapping pathways showed that CD4+ T cells in LLV expressed higher levels of Th1 signature transcription factors (TBX21), toll-like receptors (TLR-4, -6, -7 and -8), anti-HIV entry chemokines (CCL3 and CCL4), and anti-IL-1β factors (ILRN and IL1R2) compared to VS. Our results also indicated activation of the NF-κB and TNF signaling pathways that could promote HIV-1 transcription. Finally, we evaluated the effects of 4 and 17 transcription factors that were upregulated in the VS-HC and LLV-VS groups, respectively, on HIV-1 promoter activity. Functional studies revealed that CXXC5 significantly increased, while SOX5 markedly suppressed HIV-1 transcription. In summary, we found that CD4+ T cells in LLV displayed a distinct mRNA profiling compared to that in VS, which promoted HIV-1 replication and reactivation of viral latency and may eventually contribute to virologic failure in patients with persistent LLV. CXXC5 and SOX5 may serve as targets for the development of latency-reversing agents.
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Affiliation(s)
- Jingliang Chen
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Yaozu He
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Huolin Zhong
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Fengyu Hu
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Yonghong Li
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Yeyang Zhang
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Xia Zhang
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Weiyin Lin
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Quanmin Li
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Feilong Xu
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Shaozhen Chen
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China
| | - Hui Zhang
- Institute of Human Virology, Key Laboratory of Tropical Disease Control of Ministry Education, Guangdong Engineering Research Center for Antimicrobial Agent and Immunotechnology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China; Guangzhou Laboratory, Guangzhou International Bio-Island, Guangzhou, 510005, China.
| | - Weiping Cai
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China.
| | - Linghua Li
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, 510440, China.
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González-Chávez SA, López-Loeza SM, Acosta-Jiménez S, Cuevas-Martínez R, Pacheco-Silva C, Chaparro-Barrera E, Pacheco-Tena C. Low-Intensity Physical Exercise Decreases Inflammation and Joint Damage in the Preclinical Phase of a Rheumatoid Arthritis Murine Model. Biomolecules 2023; 13:biom13030488. [PMID: 36979423 PMCID: PMC10046494 DOI: 10.3390/biom13030488] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/06/2023] [Accepted: 02/22/2023] [Indexed: 03/09/2023] Open
Abstract
Lifestyle modifications in preclinical Rheumatoid Arthritis (RA) could delay the ongoing pathogenic immune processes and potentially prevent its onset. Physical exercise (PE) benefits RA patients; however, its impact in reducing the risk of developing RA has scarcely been studied. The objective was to describe the effects of low-intensity PE applied at the disease’s preclinical phase on the joints of DBA/1 mice with collagen-induced arthritis (CIA). Twelve mice with CIA were randomly distributed into two groups: the CIA-Ex group, which undertook treadmill PE, and the CIA-NoEx, which was not exercised. The effects of PE were evaluated through clinical, histological, transcriptomics, and immunodetection analyses in the mice’s hind paws. The CIA-Ex group showed lower joint inflammation and damage and a decreased expression of RA-related genes (Tnf Il2, Il10, Il12a, IL23a, and Tgfb1) and signaling pathways (Cytokines, Chemokines, JAK-STAT, MAPK, NF-kappa B, TNF, and TGF-beta). TNF-α expression was decreased by PE in the inflamed joints. Low-intensity PE in pre-arthritic CIA reduced the severity through joint down-expression of proinflammatory genes and proteins. Knowledge on the underlying mechanisms of PE in preclinical arthritis and its impact on reducing the risk of developing RA is still needed.
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Li K, Li J, Wei X, Wang J, Geng M, Ai K, Liang W, Zhang J, Li K, Gao H, Yang J. IL-10 Negatively Controls the Primary T Cell Response of Tilapia by Triggering the JAK1/STAT3/SOCS3 Axis That Suppresses NF-κB and MAPK/ERK Signaling. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:229-244. [PMID: 36548476 DOI: 10.4049/jimmunol.2200335] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 11/14/2022] [Indexed: 12/24/2022]
Abstract
The braking mechanisms to protect the host from tissue damage and inflammatory disease caused by an overexuberant immune response are common in many T cell subsets. However, the negative regulation of T cell responses and detailed mechanisms are not well understood in early vertebrates. In the current study, using a Nile tilapia (Oreochromis niloticus) model, we investigated the suppression of T cell immunity by IL-10. Tilapia encodes an evolutionarily conserved IL-10, whose expression in lymphocytes is markedly induced during the primary adaptive immune response against Aeromonas hydrophila infection. Activated T cells of tilapia produce IL-10, which in turn inhibits proinflammatory cytokine expression and suppresses PHA-induced T cell activation. Moreover, administration of IL-10 impairs the proliferation of tilapia T cells, reduces their potential to differentiate into Th subsets, and cripples the cytotoxic function, rendering the animals more vulnerable to pathogen attack. After binding to its receptor IL-10Ra, IL-10 activates the JAK1/STAT3 axis by phosphorylation and enhances the expression of the suppressor of cytokine signaling 3 (SOCS3), which in turn attenuates the activation of the NF-κB and MAPK/ERK signaling pathways, thus suppressing the T cell response of tilapia. Our findings elucidate a negative regulatory mechanism of T cell immunity in a fish species and support the notion that the braking mechanism of T cells executed through IL-10 existed prior to the divergence of the tetrapod lineage from teleosts. Therefore, this study, to our knowledge, provides a novel perspective on the evolution of the adaptive immune system.
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Affiliation(s)
- Kang Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jiaqi Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Xiumei Wei
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Junya Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China; and
| | - Ming Geng
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Kete Ai
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Wei Liang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jiansong Zhang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Kunming Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Haiyou Gao
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jialong Yang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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21
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Chieng CCY, Kong Q, Liou NSY, Khasriya R, Horsley H. The clinical implications of bacterial pathogenesis and mucosal immunity in chronic urinary tract infection. Mucosal Immunol 2023; 16:61-71. [PMID: 36642381 DOI: 10.1016/j.mucimm.2022.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/21/2022] [Indexed: 01/15/2023]
Abstract
Urinary tract infections (UTIs) exert a significant health and economic cost globally. Approximately one in four people with a previous history of UTI continue to develop recurrent or chronic infections. Research on UTI has primarily concentrated on pathogen behavior, with the focus gradually shifting to encompass the host immune response. However, these are centered on mouse models of Escherichia coli infection, which may not fully recapitulate the infective etiology and immune responses seen in humans. The emerging field of the urobiome also inadvertently confounds the discrimination of true UTI-causing pathogens from commensals. This review aims to present a novel perspective on chronic UTI by linking microbiology with immunology, which is commonly divergent in this field of research. It also describes the challenges in understanding chronic UTI pathogenesis and the human bladder immune response, largely conjectured from murine studies. Lastly, it outlines the shortcomings of current diagnostic methods in identifying individuals with chronic UTI and consequently treating them, potentially aggravating their disease due to mismanagement of prior episodes. This discourse highlights the need to consider these knowledge gaps and encourages more relevant studies of UTIs in humans.
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Affiliation(s)
| | - Qingyang Kong
- Department of Microbial Diseases, Eastman Dental Institute, University College London, London, United Kingdom
| | - Natasha S Y Liou
- Department of Renal Medicine, University College London, London, United Kingdom; EGA Institute for Women's Health, University College London, London, United Kingdom
| | - Rajvinder Khasriya
- Department of Microbial Diseases, Eastman Dental Institute, University College London, London, United Kingdom
| | - Harry Horsley
- Department of Renal Medicine, University College London, London, United Kingdom.
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22
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Wang Y, Liu Z, Zhang M, Yu B, Ai F. Mucosa-associated lymphoid tissue lymphoma translocation protein 1 exaggerates multiple organ injury, inflammation, and immune cell imbalance by activating the NF-κB pathway in sepsis. Front Microbiol 2023; 14:1117285. [PMID: 36960276 PMCID: PMC10027914 DOI: 10.3389/fmicb.2023.1117285] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/06/2023] [Indexed: 03/09/2023] Open
Abstract
Objective Mucosa-associated lymphoid tissue lymphoma translocation protein 1 (MALT1) modulates the inflammatory immune response and organ dysfunction, which are closely implicated in sepsis pathogenesis and progression. This study aimed to explore the role of MALT1 in sepsis-induced organ injury, immune cell dysregulation, and inflammatory storms. Methods Septic mice were constructed by intraperitoneal injection of lipopolysaccharide, followed by overexpression or knockdown of MALT1 by tail vein injection of the corresponding lentivirus. Mouse naïve CD4+ T cells and bone marrow-derived macrophages were treated with MALT1 overexpression/knockdown lentivirus plus lipopolysaccharide. Results In the lungs, livers, and kidneys of septic mice, MALT1 overexpression exaggerated their injuries, as shown by hematoxylin and eosin staining (all p < 0.05), elevated cell apoptosis, as reflected by the TUNEL assay and cleaved caspase-3 expression (p < 0.05 in the lungs and kidneys), and promoted macrophage infiltration, as illustrated by CD68 immunofluorescence (p < 0.05 in the lungs and kidneys). Meanwhile, in the blood, MALT1 overexpression reduced T-helper (Th)1/Th2 cells, increased Th17/regulatory T-cell ratios (both p < 0.05), promoted systematic inflammation, as revealed by tumor necrosis factor-α, interleukin-6, interleukin-1β, and C-reactive protein (all p < 0.05), elevated oxidative stress, as shown by nitric oxide (p < 0.05), superoxide dismutase, and malondialdehyde (p < 0.05), and enhanced liver and kidney dysfunction, as revealed by an automatic animal biochemistry analyzer (all p < 0.05 except for aspartate aminotransferase). However, MALT1 knockdown exerted the opposite effect as MALT1 overexpression. Ex vivo experiments revealed that MALT1 overexpression promoted the polarization of M1 macrophages and naïve CD4+ T cells toward Th2 and Th17 cells (all p < 0.05), while MALT1 knockdown attenuated these effects (all p < 0.05). Mechanistically, MALT1 positively regulated the nuclear factor-κB (NF-κB) pathway both in vivo and ex vivo (p < 0.05). Conclusion Mucosa-associated lymphoid tissue lymphoma translocation protein 1 amplifies multiple organ injury, inflammation, oxidative stress, and imbalance of macrophages and CD4+ T cells by activating the NF-κB pathway in sepsis.
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Affiliation(s)
- Yane Wang
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhimin Liu
- Department of Thyroid and Breast Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mengli Zhang
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Yu
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fen Ai
- Department of Emergency, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Fen Ai,
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23
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The Prognostic Significance and Potential Mechanism of Prolyl 3-Hydroxylase 1 in Hepatocellular Carcinoma. JOURNAL OF ONCOLOGY 2022; 2022:7854297. [DOI: 10.1155/2022/7854297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 07/29/2022] [Accepted: 08/04/2022] [Indexed: 11/18/2022]
Abstract
Background. Prolyl 3-hydroxylase 1 (P3H1) is essential for human collagen synthesis. Here, we investigated its relevance to multiple cancers, especially hepatocellular carcinoma (LIHC). Methods. We estimated the relationship of P3H1 with 33 cancers using publicly available databases. And immunohistochemistry was utilized to verify the P3H1 expression in liver, gastric, colon, pancreatic, and rectal cancer. Then, we attenuated P3H1 expression in BEL-7402 and HLF cells by lentivirus technology and assessed the effect of P3H1 on cell proliferation, migration, and invasion. Results. Bioinformatic analysis revealed a significantly higher expression of P3H1 in almost all tumors, which was consistent with the immunohistochemical findings in the liver, gastric, colon, pancreatic, and rectal cancers. P3H1 expression was associated with overall survival, progression-free interval, disease-specific survival, and disease-free interval in most cancers, particularly in LIHC. Besides, we also found that P3H1 expression was an independent prognostic factor for LIHC. And knockdown of P3H1 significantly reduced liver cancer cell proliferation, migration, and invasion in liver cancer cells. Interestingly, P3H1 expression levels showed a significant positive connection with Th2 infiltration through multiple immune infiltration algorithms. ICI treatment was less effective in LIHC patients with high P3H1 expression. Finally, we also identified an upstream regulatory mechanism of P3H1 in LIHC, namely, AL355488.1, HCG18, and THUMPD3-AS1/hsa-miR-29c-3p-P3H1 axis. Conclusion. We have systematically described for the first time that P3H1 is closely related to various tumors, particularly in LIHC, and interference with P3H1 may be a therapeutic target for patients with LIHC.
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Lou B, Wu W, Zeng L, Zhou W, Zhang X, Zhou X, Liu Z, Liu K, Gu X, Chen X, Wang Y, Chen Y, Gao X, Zhang F. Alleviating experimental allergic eye disease by inhibiting pro-lymphangiogenic VEGFR3 signal. Ocul Surf 2022; 26:1-12. [PMID: 35931408 DOI: 10.1016/j.jtos.2022.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 06/29/2022] [Accepted: 07/18/2022] [Indexed: 12/13/2022]
Abstract
PURPOSE Ocular allergy leads to acute and chronic inflammation that may deteriorate the conjunctiva and other ocular tissue. The conjunctiva is covered with abundant lymphatic vessels but how the conjunctival lymphatic system patriciates in the development of allergic eye disease (AED) remains to be elucidated. METHODS AND RESULTS By using ovalbumin (OVA)+pertussis toxin (PTX) as a sensitizer followed by daily OVA challenges, we induced optimized AED manifestations in mice. We show that conjunctival lymphatics underwent significant expansion after 28 days of chronic OVA challenge, and this process can be prevented by inducible genetic ablation of lymphatic Vegfr3. Through transcriptomic profile analysis in combination with histopathological examinations, we found that pro-lymphangiogenic VEGFR3 signal promoted allergy-induced activation of T helper 2 (Th2) type immune responses, including antigen presentation, and Th2 cells, B cells and mast cell-related pathways in the conjunctiva, thereby critically contributing to the immunoglobulin E (IgE) production and AED manifestations. As a result, ocular allergy can be alleviated by genetic inhibition of lymphatic Vegfr3. Interestingly, pro-lymphangiogenic VEGFR3 signal did not appear to affect the obstruction of meibomian glands (MGs) or the activation of Th17 type and neutrophil pathways that are associated with AED. CONCLUSIONS These data reveal the key role of pro-lymphangiogenic VEGFR3 signaling in the development of AED and provide experimental evidence that VEGFR3 inhibition may be useful in treating ocular allergy in patients.
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Affiliation(s)
- Bingsheng Lou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Wanwen Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Lei Zeng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Weibin Zhou
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xuan Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Xuetong Zhou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Zheng Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Keli Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Xinyu Gu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Xun Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Yeqi Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing, 400044, China; State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Yangxin Chen
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xinbo Gao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Feng Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China.
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Heinze-Milne SD, Banga S, Howlett SE. Frailty and cytokines in preclinical models: Comparisons with humans. Mech Ageing Dev 2022; 206:111706. [PMID: 35835224 DOI: 10.1016/j.mad.2022.111706] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/22/2022] [Accepted: 07/08/2022] [Indexed: 11/27/2022]
Abstract
Chronic low-grade elevations of blood-borne cytokines/chemokines in older age tend to associate with frailty in humans. This persistent inflammation is often called "inflammageing" and likely contributes to frailty progression. Preclinical models such as ageing and/or genetically modified mice offer a unique opportunity to mechanistically study how these inflammatory mediators affect frailty. In this review, we summarize and contrast evidence relating cytokines/chemokines to frailty in humans and in mouse models of frailty. In humans and mice, higher levels of the pro-inflammatory cytokine interleukin-6 regularly increased in proportion to the degree of frailty. Evidence linking other cytokines/chemokines to frailty in humans and mice is less certain. The chemokines CXCL-10 and monocyte chemoattractant protein-1 related to frailty across both species, but evidence is limited and inconsistent. Several other cytokines/chemokines, including tumour necrosis factor-α relate to frailty in humans or in mice, but evidence to date is species- and tissue-dependent. It is important for future studies to validate common mechanistic inflammatory biomarkers of frailty between humans and mice. Achieving this goal will accelerate the search for drugs to treat frailty.
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Affiliation(s)
| | - Shubham Banga
- Department of Pharmacology, Dalhousie University, Halifax, NS, Canada.
| | - Susan E Howlett
- Department of Pharmacology, Dalhousie University, Halifax, NS, Canada; Department of Medicine (Geriatric Medicine), Dalhousie University, Halifax, NS, Canada.
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26
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Adjobimey T, Meyer J, Terkeš V, Parcina M, Hoerauf A. Helminth antigens differentially modulate the activation of CD4 + and CD8 + T lymphocytes of convalescent COVID-19 patients in vitro. BMC Med 2022; 20:241. [PMID: 35764965 PMCID: PMC9241220 DOI: 10.1186/s12916-022-02441-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 06/15/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The coronavirus disease 2019 (COVID-19) is a respiratory disease caused by SARS-CoV-2, a recently discovered strain of coronavirus. The virus has spread rapidly, causing millions of death worldwide. Contrary to the predictions, prevalence and mortality due to COVID-19 have remained moderate on the African continent. Several factors, including age, genetics, vaccines, and co-infections, might impact the course of the pandemic in Africa. Helminths are highly endemic in Sub-Saharan Africa and are renowned for their ability to evade, skew, and suppress human immune responses through various immune-modulatory mechanisms. Such effects will likely impact SARS-CoV-2 transmission and disease progression. METHODS Here, we analyzed in vitro the impact of antigen extracts from three major helminth parasites, including Onchocerca volvulus, Brugia malayi, and Ascaris lumbricoides, on the immune reactivity to SARS-CoV-2 peptides in COVID-19 patients. Activation of CD4+ and CD8+ T cells was investigated using flow cytometry to monitor the expression of CD137 (4-1BB) and CD69. Cytokine expression, including IL-6, IL-10, IFN-γ, and TNFα, was measured by Luminex in cell culture supernatants. RESULTS We observed that helminth antigens significantly reduced the frequency of SARS-CoV-2-reactive CD4+ T helper cells. In contrast, the expression of SARS-CoV-2-reactive CD8+ T cells was not affected and even significantly increased when PBMCs from COVID-19 patients living in Benin, an endemic helminth country, were used. In addition, stimulation with helminth antigens was associated with increased IL-10 and a reduction of IFNγ and TNFα. CONCLUSIONS Our data offer a plausible explanation for the moderate incidence of COVID-19 in Africa and support the hypothesis that helper T cell-mediated immune responses to SARS-CoV-2 are mitigated in the presence of helminth antigens, while virus-specific cytotoxic T cell responses are maintained.
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Affiliation(s)
- Tomabu Adjobimey
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Sigmund-Freud-Straße 25, 53105, Bonn, Germany. .,Unité de Biochimie et de Biologie Moléculaire, Faculté des Sciences et Techniques (FAST), Université d'Abomey-Calavi, Abomey-Calavi, Bénin.
| | - Julia Meyer
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Sigmund-Freud-Straße 25, 53105, Bonn, Germany
| | - Vedrana Terkeš
- Department of Infectiology, General Hospital Zadar, Zadar, Croatia
| | - Marijo Parcina
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Sigmund-Freud-Straße 25, 53105, Bonn, Germany
| | - Achim Hoerauf
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Sigmund-Freud-Straße 25, 53105, Bonn, Germany.,Bonn-Cologne Site, German Center for Infectious Disease Research (DZIF), Bonn, Germany
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