Abstract:
:Background: The systemic inflammatory cascade triggered in donors after brain death enhances the ischemia-reperfusion injury after organ transplantation. Intravenous steroids are routinely used in the intensive care units for the donor preconditioning. Immunosuppressive medications could be potentially used for this purpose as well. Data regarding donor preconditioning with calcineurin inhibitors or inhibitors of mammalian target for Rapamycin is limited. The aim of this project is to investigate the effects of (oral) donor preconditioning with a calcineurin inhibitor (Cyclosporine) vs. an inhibitor of mammalian target for Rapamycin (Everolimus) compared to the conventional administration of steroid in the setting of donation after brain death in porcine renal transplantation. Methods: Six hours after the induction of brain death, German landrace donor pigs (33.2 ± 3.9 kg) were randomly preconditioned with either Cyclosporine (n = 9) or Everolimus (n = 9) administered via nasogastric tube with a repeated dose just before organ procurement. Control donors received intravenous Methylprednisolone (n = 8). Kidneys were procured, cold-stored in Histidine-Tryptophane-Ketoglutarate solution at 4°C and transplanted in nephrectomized recipients after a mean cold ischemia time of 18 h. No post-transplant immunosuppression was given to avoid confounding bias. Blood samples were obtained at 4 h post reperfusion and daily until postoperative day 5 for complete blood count, blood urea nitrogen, creatinine, and electrolytes. Graft protocol biopsies were performed 4 h after reperfusion to assess early histological and immunohistochemical changes. Results: There was no difference in the hemodynamic parameters, hemoglobin/hematocrit and electrolytes between the groups. Serum blood urea nitrogen and creatinine peaked on postoperative day 1 in all groups and went back to the preoperative levels at the conclusion of the study on postoperative day 5. Histological assessment of the kidney grafts revealed no significant differences between the groups. TNF-α expression was significantly lower in the study groups compared with Methylprednisolone group (p = 0.01) Immunohistochemistry staining for cytochrome c showed no difference between the groups. Conclusion: Oral preconditioning with Cyclosporine or Everolimus is feasible in donation after brain death pig kidney transplantation and reduces the expression of TNF-α. Future studies are needed to further delineate the role of oral donor preconditioning against ischemia-reperfusion injury.
journal_name
Front Immunoljournal_title
Frontiers in immunologyauthors
Abbasi Dezfouli S,Nikdad M,Ghamarnejad O,Khajeh E,Arefidoust A,Mohammadi S,Majlesara A,Sabagh M,Gharabaghi N,Kentar M,Younsi A,Eckert C,Poth T,Golriz M,Mehrabi A,Nickkholgh Adoi
10.3389/fimmu.2020.01222subject
Has Abstractpub_date
2020-06-18 00:00:00pages
1222issn
1664-3224journal_volume
11pub_type
杂志文章abstract::During the course of Chagas disease, infectious forms of Trypanosoma cruzi are occasionally liberated from parasitized heart cells. Studies performed with tissue culture trypomastigotes (TCTs, Dm28c strain) demonstrated that these parasites evoke neutrophil/CXCR2-dependent microvascular leakage by activating innate se...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2017.00840
更新日期:2017-08-02 00:00:00
abstract::Non-steroidal anti-inflammatory drugs (NSAIDs) induce ulcers in the gastrointestinal tract, including the stomach and small intestine. NSAID-induced gastric ulcers can be prevented by taking acid-neutralizing/inhibitory drugs and cytoprotective agents. In contrast, there are no medicines to control NSAID-induced small...
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pub_type: 杂志文章
doi:10.3389/fimmu.2020.550366
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abstract::Altered macrophage infiltration upon tissue damage results in inadequate healing due to inappropriate remodeling and stem cell recruitment and differentiation. We investigated in vivo whether cells of endothelial origin phenotypically change upon heterotopic ossification induction and whether infiltration of innate im...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.01640
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abstract::Drugs formulated from monoclonal antibodies (mAbs) are clinically effective in various diseases. Repeated administration of mAbs, however, elicits an immune response in the form of anti-drug-antibodies (ADA), thereby reducing the drug's efficacy. Notwithstanding their importance, the molecular landscape of ADA and the...
journal_title:Frontiers in immunology
pub_type: 杂志文章
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更新日期:2019-12-18 00:00:00
abstract::Neisseria gonorrhoeae is a significant health problem worldwide due to multi-drug resistance issues and absence of an effective vaccine. Patients infected with N. gonorrhoeae have not shown a better immune response in successive infections. This might be explained by the fact that N. gonorrhoeae possesses several mech...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2018.03044
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abstract::Dendritic cell (DCs) activation by Toll-like receptor (TLR) agonist induces robust metabolic rewiring toward glycolysis. Recent findings in the field identified mechanistic details governing these metabolic adaptations. However, it is unknown whether a switch to glycolysis from oxidative phosphorylation (OXPHOS) is a ...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.02386
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abstract::A wide variety of biomaterials have been developed as both stabilizing structures for the injured bone and inducers of bone neoformation. They differ in chemical composition, shape, porosity, and mechanical properties. The most extensively employed and studied subset of bioceramics are calcium phosphate materials (CaP...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2019.00663
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abstract::In humans, NK cells are mainly identified by the surface expression levels of CD56 and CD16, which differentiate between five functionally different NK cell subsets. However, nowadays NK cells are considered as a more heterogeneous population formed by various subsets differing in function, surface phenotype, and anat...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2016.00656
更新日期:2016-12-27 00:00:00
abstract::Outcomes in stem cell transplantation (SCT) are modeled using probability theory. However, the clinical course following SCT appears to demonstrate many characteristics of dynamical systems, especially when outcomes are considered in the context of immune reconstitution. Dynamical systems tend to evolve over time acco...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2014.00613
更新日期:2014-12-03 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.01335
更新日期:2019-06-20 00:00:00
abstract::Dengue is considered the most important emerging, human arboviruses, with worldwide distribution in the tropics. Unfortunately, there are no licensed dengue vaccines available or specific anti-viral drugs. The development of a dengue vaccine faces unique challenges. The four serotypes co-circulate in endemic areas, an...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2014.00452
更新日期:2014-09-24 00:00:00
abstract::Paneth cells contribute to intestinal innate immunity by sensing bacteria and secreting α-defensin. In Institute of Cancer Research (ICR) mice, α-defensin termed cryptdin (Crp) in Paneth cells consists of six major isoforms, Crp1 to 6. Despite accumulating evidences that α-defensin functions in controlling the intesti...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.570296
更新日期:2020-10-13 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2019.02876
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abstract::Infectious diseases are still a significant cause of morbidity and mortality worldwide. Despite the progress in drug development, the occurrence of microbial resistance is still a significant concern. Alternative therapeutic strategies are required for non-responding or relapsing patients. Chimeric antigen receptor (C...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2019.02711
更新日期:2019-11-21 00:00:00
abstract::Background: Sex differences in immune responses to influenza vaccine may impact efficacy across populations. Methods: In a cohort of 138 older adults (50-74 years old), we measured influenza A/H1N1 antibody titers, B-cell ELISPOT response, PBMC transcriptomics, and PBMC cell compositions at 0, 3, and 28 days post-immu...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.00180
更新日期:2019-02-27 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2020.00723
更新日期:2020-04-28 00:00:00
abstract::Adverse life circumstances evoke a common "conserved transcriptional response to adversity" (CTRA) in mammalian leukocytes. To investigate whether this pattern is preserved in lower vertebrates, maraena whitefish (Coregonus maraena) were exposed for 9 days to different stocking densities: ~10 kg/m3 (low density), ~33 ...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2016.00631
更新日期:2016-12-23 00:00:00
abstract::Liver fibrosis is a wound healing response initiated by inflammation responding for different iterative parenchymal damages caused by diverse etiologies. Immune cells, which exert their ability of either inducing injury or promoting repair, have been regarded as crucial participants in the fibrogenic response. A chara...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2017.01450
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abstract::Assembly of the CARD11/CARMA1-BCL10-MALT1 (CBM) signaling complex upon T or B cell antigen receptor (TCR or BCR) engagement drives lymphocyte activation. Recruitment of pre-assembled BCL10-MALT1 complexes to CARD11 fosters activation of the MALT1 protease and canonical NF-κB signaling. Structural data and in vitro ass...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2018.02695
更新日期:2018-11-20 00:00:00
abstract::Whether and how γδT cells play a protective role in immunity against Plasmodium infection remain open questions. γδT cells expand in patients and mice infected with Plasmodium spp, and cytokine production and cytotoxic responses against blood-stage parasites are observed in vitro. Their expansion is associated with pr...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2018.02973
更新日期:2018-12-20 00:00:00
abstract::Human regulatory CD4+ T cells (Tregs) are potent immunosuppressive lymphocytes responsible for immune tolerance and homeostasis. Since the seminal reports identifying Tregs, vast research has been channeled into understanding their genesis, signature molecular markers, mechanisms of suppression, and role in disease. T...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2017.01117
更新日期:2017-09-21 00:00:00
abstract::Donor-specific anti-HLA antibodies (DSAs) are a major risk factor associated with renal allograft outcomes. As a trigger of B cell antibody production, T follicular helper cells (Tfhs) promote DSA appearance. Herein, we evaluated whether circulating Tfhs (cTfhs) are associated with the genesis of antibody-mediated rej...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.02071
更新日期:2019-09-10 00:00:00
abstract::T follicular helper (Tfh) cells are a subset of CD4 T cells that provide critical signals to antigen-primed B cells in germinal centers to undergo proliferation, isotype switching, and somatic hypermutation to generate long-lived plasma cells and memory B cells during an immune response. The quantity and quality of Tf...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2017.01380
更新日期:2017-10-23 00:00:00
abstract::Mucosa-associated invariant T (MAIT) cells are unconventional, innate-like T lymphocytes that recognize vitamin B metabolites of microbial origin among other antigens displayed by the monomorphic molecule MHC class I-related protein 1 (MR1). Abundant in human tissues, reactive to local inflammatory cues, and endowed w...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.01691
更新日期:2020-07-31 00:00:00
abstract::Isatuximab is a monoclonal antibody targeting the transmembrane receptor and ectoenzyme CD38, a protein highly expressed on hematological malignant cells, including those in multiple myeloma (MM). Upon binding to CD38-expressing MM cells, isatuximab is thought to induce tumor cell killing via fragment crystallizable (...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.01771
更新日期:2020-08-14 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2017.00211
更新日期:2017-03-02 00:00:00
abstract::Inducible Bronchus Associated Lymphoid Tissue (iBALT) is an ectopic lymphoid tissue associated with severe forms of chronic lung diseases, including chronic obstructive pulmonary disease, rheumatoid lung disease, hypersensitivity pneumonitis and asthma, suggesting that iBALT may exacerbate these clinical conditions. H...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.570661
更新日期:2020-09-25 00:00:00
abstract::Cytokines are known to shape the tumor microenvironment and although progress has been made in understanding their role in carcinogenesis, much remains to learn regarding their role in tumor growth and progression. We have identified granulocyte colony-stimulating factor (G-CSF) as one such cytokine, showing that G-CS...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.01885
更新日期:2020-09-15 00:00:00
abstract::Background: Diarrhoea is the commonest gastrointestinal symptom in patients with common variable immunodeficiency (CVID). Objective: The aim of this study was to describe the prevalence and clinical presentation of chronic and recurrent diarrhoea in the Royal-Free-Hospital (RFH) London CVID cohort, including symptoms,...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.01654
更新日期:2020-07-31 00:00:00
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journal_title:Frontiers in immunology
pub_type: 临床试验,杂志文章
doi:10.3389/fimmu.2019.00848
更新日期:2019-04-30 00:00:00