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Chen C, He Y, Ni Y, Tang Z, Zhang W. Identification of crosstalk genes relating to ECM-receptor interaction genes in MASH and DN using bioinformatics and machine learning. J Cell Mol Med 2024; 28:e18156. [PMID: 38429902 PMCID: PMC10907849 DOI: 10.1111/jcmm.18156] [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: 07/22/2023] [Revised: 01/01/2024] [Accepted: 01/12/2024] [Indexed: 03/03/2024] Open
Abstract
This study aimed to identify genes shared by metabolic dysfunction-associated fatty liver disease (MASH) and diabetic nephropathy (DN) and the effect of extracellular matrix (ECM) receptor interaction genes on them. Datasets with MASH and DN were downloaded from the Gene Expression Omnibus (GEO) database. Pearson's coefficients assessed the correlation between ECM-receptor interaction genes and cross talk genes. The coexpression network of co-expression pairs (CP) genes was integrated with its protein-protein interaction (PPI) network, and machine learning was employed to identify essential disease-representing genes. Finally, immuno-penetration analysis was performed on the MASH and DN gene datasets using the CIBERSORT algorithm to evaluate the plausibility of these genes in diseases. We found 19 key CP genes. Fos proto-oncogene (FOS), belonging to the IL-17 signalling pathway, showed greater centrality PPI network; Hyaluronan Mediated Motility Receptor (HMMR), belonging to ECM-receptor interaction genes, showed most critical in the co-expression network map of 19 CP genes; Forkhead Box C1 (FOXC1), like FOS, showed a high ability to predict disease in XGBoost analysis. Further immune infiltration showed a clear positive correlation between FOS/FOXC1 and mast cells that secrete IL-17 during inflammation. Combining the results of previous studies, we suggest a FOS/FOXC1/HMMR regulatory axis in MASH and DN may be associated with mast cells in the acting IL-17 signalling pathway. Extracellular HMMR may regulate the IL-17 pathway represented by FOS through the Mitogen-Activated Protein Kinase 1 (ERK) or PI3K-Akt-mTOR pathway. HMMR may serve as a signalling carrier between MASH and DN and could be targeted for therapeutic development.
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Affiliation(s)
- Chao Chen
- Instrumentation and Service Center for Science and TechnologyBeijing Normal UniversityZhuhaiChina
| | - Yuxi He
- Pediatric Research InstituteThe Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Ying Ni
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Advanced Institute of Natural SciencesBeijing Normal UniversityZhuhaiChina
- Engineering Research Center of Natural Medicine, Ministry of Education, Advanced Institute of Natural SciencesBeijing Normal UniversityZhuhaiChina
| | - Zhanming Tang
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Advanced Institute of Natural SciencesBeijing Normal UniversityZhuhaiChina
- Engineering Research Center of Natural Medicine, Ministry of Education, Advanced Institute of Natural SciencesBeijing Normal UniversityZhuhaiChina
| | - Wensheng Zhang
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Advanced Institute of Natural SciencesBeijing Normal UniversityZhuhaiChina
- Engineering Research Center of Natural Medicine, Ministry of Education, Advanced Institute of Natural SciencesBeijing Normal UniversityZhuhaiChina
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2
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Park HR, Hogan KA, Harris SM, Chames MC, Loch-Caruso R. Group B streptococcus induces cellular senescence in human amnion epithelial cells through a partial interleukin-1-mediated mechanism. Biol Reprod 2024; 110:329-338. [PMID: 37903065 PMCID: PMC10873272 DOI: 10.1093/biolre/ioad149] [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: 06/22/2023] [Revised: 09/25/2023] [Accepted: 10/24/2023] [Indexed: 11/01/2023] Open
Abstract
Group B streptococcus (GBS) infection is a significant public health concern associated with adverse pregnancy complications and increased neonatal mortality and morbidity. However, the mechanisms underlying the impact of GBS on the fetal membrane, the first line of defense against pathogens, are not fully understood. Here, we propose that GBS induces senescence and inflammatory factors (IL-6 and IL-8) in the fetal membrane through interleukin-1 (IL-1). Utilizing the existing transcriptomic data on GBS-exposed human fetal membrane, we showed that GBS affects senescence-related pathways and genes. Next, we treated primary amnion epithelial cells with conditioned medium from the choriodecidual layer of human fetal membrane exposed to GBS (GBS collected choriodecidual [CD] conditioned medium) in the absence or presence of an IL-1 receptor antagonist (IL-1Ra). GBS CD conditioned medium significantly increased β-galactosidase activity, IL-6 and IL-8 release from the amnion epithelial cells. Cotreatment with IL1Ra reduced GBS-induced β-galactosidase activity and IL-6 and IL-8 secretion. Direct treatment with IL-1α or IL-1β confirmed the role of IL-1 signaling in the regulation of senescence in the fetal membrane. We further showed that GBS CD conditioned medium and IL-1 decreased cell proliferation in amnion epithelial cells. In summary, for the first time, we demonstrate GBS-induced senescence in the fetal membrane and present evidence of IL-1 pathway signaling between the choriodecidua and amnion layer of fetal membrane in a paracrine manner. Further studies will be warranted to understand the pathogenesis of adverse pregnancy outcomes associated with GBS infection and develop therapeutic interventions to mitigate these complications.
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Affiliation(s)
- Hae-Ryung Park
- Department of Environmental Medicine, School of Medicine and Dentistry, University of Rochester, Rochester, NY, USA
| | - Kelly A Hogan
- Department of Biochemistry & Molecular Biology, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Sean M Harris
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Mark C Chames
- Department of Obstetrics and Gynecology, School of Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Rita Loch-Caruso
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
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3
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Wahyudi R, Seang S, Everts V, Osathanon T, Limjeerajarus CN. Anti-inflammatory effects of the prostacyclin analogue iloprost in an in vitro model of inflamed human dental pulp cells. AUST ENDOD J 2023; 49 Suppl 1:330-338. [PMID: 36723392 DOI: 10.1111/aej.12736] [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: 08/15/2022] [Revised: 12/26/2022] [Accepted: 01/15/2023] [Indexed: 02/02/2023]
Abstract
Iloprost's anti-inflammatory effects on human dental pulp stem cells (HDPCs) are currently unknown. We hypothesized that iloprost could downregulate the expression of inflammatory-related genes and protein in an inflamed HDPC in vitro model. To induce inflammation, the HDPCs were treated with a cocktail of interleukin-1 beta, interferon-gamma, and tumour necrosis alpha, at a ratio of 1:10:100. Iloprost (10-6 M) was then added or not to the cultures. Interleukin-6 (IL-6) and interleukin-12 (IL-12) mRNA expression were assessed by real-time polymerase chain reaction. IL-6 protein expression was assessed by enzyme-linked immunosorbent assay. The results were analysed using one-way ANOVA or the Kruskal-Wallis test. The cytokine cocktail induced more robust IL-6 expression than LPS treatment. Iloprost slightly, yet significantly, downregulated IL-6 and IL-12 mRNA expression. These findings suggest that iloprost might be used as a beneficial component in vital pulp therapy.
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Affiliation(s)
- Rahman Wahyudi
- Faculty of Dentistry, Graduate Program in Oral Biology, Chulalongkorn University, Bangkok, Thailand
| | - Sonntana Seang
- Faculty of Dentistry, Graduate Program in Oral Biology, Chulalongkorn University, Bangkok, Thailand
- Department of Oral and Maxillofacial Surgery and Dentistry, Khmer-Soviet Friendship Hospital, Phnom Penh, Cambodia
| | - Vincent Everts
- Faculty of Dentistry, University of Amsterdam and Vrije University Amsterdam, Amsterdam, The Netherlands
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Thanaphum Osathanon
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Chalida Nakalekha Limjeerajarus
- Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Genomics and Precision Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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4
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Bettin L, Darbellay J, van Kessel J, Scruten E, Napper S, Gerdts V. Distinct, age-dependent TLR7/8 signaling responses in porcine gamma-delta T cells. Mol Immunol 2023; 160:80-94. [PMID: 37393885 DOI: 10.1016/j.molimm.2023.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/19/2023] [Accepted: 06/26/2023] [Indexed: 07/04/2023]
Abstract
Gamma-Delta T cells are a prominent subset of T cells in pigs. However, developmental changes, antigen recognition, cell migration, and their contributions to pathogen clearance remain largely unknown. We have recently shown that porcine γδ T cells express Toll-like receptors (TLRs), and that TLR7/8 stimulation can function as a co-stimulatory signal that complements cytokine-induced signals to enhance INFγ production. Nonetheless, the signaling pathways behind this increased cytokine responsiveness remained unclear. Here, we analyzed the signaling pathways by measuring cellular kinase activity and selective inhibition, confirming that the TLR7/8 expression by γδ T cells is indeed functional. Moreover, TLR downstream signaling responses showed a distinct age-dependency, emphasizing the importance of age in immune function. While the TLR7/8 co-stimulation depended on activation of IRAK1/4, p38 and JNK in adult-derived γδ T cells, γδ T cells from young pigs utilized only p38, indicating the existence of an alternative signaling pathway in young pigs. Overall, this data suggests that porcine γδ T cells could be able to recognize viral RNA through TLR7/8 and subsequently support the survival and activation of the adaptive immune response by cytokine production.
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Affiliation(s)
- Leonie Bettin
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Joseph Darbellay
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Jill van Kessel
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Erin Scruten
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Scott Napper
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Department of Biochemistry, Microbiology and Immunology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Volker Gerdts
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
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5
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Brown FN, Iwasawa E, Shula C, Fugate EM, Lindquist DM, Mangano FT, Goto J. Early postnatal microglial ablation in the Ccdc39 mouse model reveals adverse effects on brain development and in neonatal hydrocephalus. Fluids Barriers CNS 2023; 20:42. [PMID: 37296418 DOI: 10.1186/s12987-023-00433-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 04/19/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND Neonatal hydrocephalus is a congenital abnormality resulting in an inflammatory response and microglial cell activation both clinically and in animal models. Previously, we reported a mutation in a motile cilia gene, Ccdc39 that develops neonatal progressive hydrocephalus (prh) with inflammatory microglia. We discovered significantly increased amoeboid-shaped activated microglia in periventricular white matter edema, reduced mature homeostatic microglia in grey matter, and reduced myelination in the prh model. Recently, the role of microglia in animal models of adult brain disorders was examined using cell type-specific ablation by colony-stimulating factor-1 receptor (CSF1R) inhibitor, however, little information exists regarding the role of microglia in neonatal brain disorders such as hydrocephalus. Therefore, we aim to see if ablating pro-inflammatory microglia, and thus suppressing the inflammatory response, in a neonatal hydrocephalic mouse line could have beneficial effects. METHODS In this study, Plexxikon 5622 (PLX5622), a CSF1R inhibitor, was subcutaneously administered to wild-type (WT) and prh mutant mice daily from postnatal day (P) 3 to P7. MRI-estimated brain volume was compared with untreated WT and prh mutants P7-9 and immunohistochemistry of the brain sections was performed at P8 and P18-21. RESULTS PLX5622 injections successfully ablated IBA1-positive microglia in both the WT and prh mutants at P8. Of the microglia that are resistant to PLX5622 treatment, there was a higher percentage of amoeboid-shaped microglia, identified by morphology with retracted processes. In PLX-treated prh mutants, there was increased ventriculomegaly and no change in the total brain volume was observed. Also, the PLX5622 treatment significantly reduced myelination in WT mice at P8, although this was recovered after full microglia repopulation by P20. Microglia repopulation in the mutants worsened hypomyelination at P20. CONCLUSIONS Microglia ablation in the neonatal hydrocephalic brain does not improve white matter edema, and actually worsens ventricular enlargement and hypomyelination, suggesting critical functions of homeostatic ramified microglia to better improve brain development with neonatal hydrocephalus. Future studies with detailed examination of microglial development and status may provide a clarification of the need for microglia in neonatal brain development.
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Affiliation(s)
- Farrah N Brown
- Division of Pediatric Neurosurgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Eri Iwasawa
- Division of Pediatric Neurosurgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Crystal Shula
- Division of Pediatric Neurosurgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Elizabeth M Fugate
- Department of Radiology, Imaging Research Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Diana M Lindquist
- Department of Radiology, Imaging Research Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Francesco T Mangano
- Division of Pediatric Neurosurgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - June Goto
- Division of Pediatric Neurosurgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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Santos ED, Hernández MH, Sérazin V, Vialard F, Dieudonné MN. Human Placental Adaptive Changes in Response to Maternal Obesity: Sex Specificities. Int J Mol Sci 2023; 24:ijms24119770. [PMID: 37298720 DOI: 10.3390/ijms24119770] [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: 04/26/2023] [Revised: 05/25/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Maternal obesity is increasingly prevalent and is associated with elevated morbidity and mortality rates in both mothers and children. At the interface between the mother and the fetus, the placenta mediates the impact of the maternal environment on fetal development. Most of the literature presents data on the effects of maternal obesity on placental functions and does not exclude potentially confounding factors such as metabolic diseases (e.g., gestational diabetes). In this context, the focus of this review mainly lies on the impact of maternal obesity (in the absence of gestational diabetes) on (i) endocrine function, (ii) morphological characteristics, (iii) nutrient exchanges and metabolism, (iv) inflammatory/immune status, (v) oxidative stress, and (vi) transcriptome. Moreover, some of those placental changes in response to maternal obesity could be supported by fetal sex. A better understanding of sex-specific placental responses to maternal obesity seems to be crucial for improving pregnancy outcomes and the health of mothers and children.
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Affiliation(s)
- Esther Dos Santos
- UFR des Sciences de la Santé Simone Veil, Université de Versailles-Saint Quentin en Yvelines-Université Paris Saclay (UVSQ), INRAE, BREED, F-78350 Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort (EnvA), BREED, F-94700 Maisons-Alfort, France
- Service de Biologie Médicale, Centre Hospitalier de Poissy-Saint Germain, F-78300 Poissy, France
| | - Marta Hita Hernández
- UFR des Sciences de la Santé Simone Veil, Université de Versailles-Saint Quentin en Yvelines-Université Paris Saclay (UVSQ), INRAE, BREED, F-78350 Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort (EnvA), BREED, F-94700 Maisons-Alfort, France
| | - Valérie Sérazin
- UFR des Sciences de la Santé Simone Veil, Université de Versailles-Saint Quentin en Yvelines-Université Paris Saclay (UVSQ), INRAE, BREED, F-78350 Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort (EnvA), BREED, F-94700 Maisons-Alfort, France
- Service de Biologie Médicale, Centre Hospitalier de Poissy-Saint Germain, F-78300 Poissy, France
| | - François Vialard
- UFR des Sciences de la Santé Simone Veil, Université de Versailles-Saint Quentin en Yvelines-Université Paris Saclay (UVSQ), INRAE, BREED, F-78350 Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort (EnvA), BREED, F-94700 Maisons-Alfort, France
- Service de Biologie Médicale, Centre Hospitalier de Poissy-Saint Germain, F-78300 Poissy, France
| | - Marie-Noëlle Dieudonné
- UFR des Sciences de la Santé Simone Veil, Université de Versailles-Saint Quentin en Yvelines-Université Paris Saclay (UVSQ), INRAE, BREED, F-78350 Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort (EnvA), BREED, F-94700 Maisons-Alfort, France
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7
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Ku CW, Ong LS, Goh JP, Allen J, Low LW, Zhou J, Tan TC, Lee YH. Defects in protective cytokine profiles in spontaneous miscarriage in the first trimester. F&S SCIENCE 2023; 4:36-46. [PMID: 36096448 DOI: 10.1016/j.xfss.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To study differences in cytokine expression profiles between women with ongoing pregnancy and those experiencing spontaneous miscarriage, among women who presented with threatened miscarriage before week 16 of gestation. DESIGN Prospective cohort study. SETTING Academic hospital. PATIENT(S) In this prospective cohort study, 155 pregnant women, comprising normal pregnant women recruited from antenatal clinics (n = 97) and women with threatened miscarriage recruited from an emergency walk-in clinic (n = 58). INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Sixty-five serum cytokines quantified using multiplex immunoassay correlated with miscarriage outcomes. RESULT(S) Among women presenting with threatened miscarriage, those who eventually miscarried had significantly lower levels of interleukin (IL)-2, IL-12p70, IL-17A, B-cell-activating factor, B lymphocyte chemoattractant, basic nerve growth factor, interferon-γ, tumor necrosis factor-related apoptosis-inducing ligand, thymic stromal lymphopoietin, and tumor necrosis factor-α and higher levels of vascular endothelial growth factor A, IL-21, and stromal cell-derived factor 1α than those with ongoing pregnancy. Comparisons between normal pregnancies and women with threatened miscarriage who eventually miscarried revealed significant differences across 7 cytokines: B-cell-activating factor; B lymphocyte chemoattractant; basic nerve growth factor; IL-17A; fractalkine/CX3CL1; vascular endothelial growth factor A; and CCL22. Vascular endothelial growth factor A exhibited a negative correlation with the progesterone level (r = -0.270). The cluster of significant cytokines alludes to T cell proliferation, B-cell proliferation, natural killer cell-mediated cytotoxicity, and apoptosis as important pathways that determine pregnancy outcomes. Bioinformatic analysis further revealed alteration of the suppressor of cytokine signaling proteins family of Janus kinase-signal transducer and activator of transcription signaling axis by cytokines as a plausible key molecular mechanism in spontaneous miscarriage. CONCLUSION(S) This study demonstrates that the regulated balance between the proinflammatory and anti-inflammatory pathways is crucial to maintaining pregnancy. A better understanding of the cytokines associated with immunomodulatory effects may lead to novel targets for the prediction and treatment of spontaneous miscarriage.
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Affiliation(s)
- Chee Wai Ku
- Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore; Duke-NUS Medical School, Singapore
| | | | - Jody Paige Goh
- Division of Obstetrics and Gynecology, KK Women's and Children's Hospital, Singapore
| | | | - Louise Wenyi Low
- Division of Obstetrics and Gynecology, KK Women's and Children's Hospital, Singapore; Obstetrics and Gynecology-Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Jieliang Zhou
- Division of Obstetrics and Gynecology, KK Women's and Children's Hospital, Singapore; Obstetrics and Gynecology-Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Thiam Chye Tan
- Division of Obstetrics and Gynecology, KK Women's and Children's Hospital, Singapore; Obstetrics and Gynecology-Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Yie Hou Lee
- Obstetrics and Gynecology-Academic Clinical Program, Duke-NUS Medical School, Singapore; Translational 'Omics and Biomarkers Group, KK Research Centre, KK Women's and Children's Hospital, Singapore.
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8
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Decreased Innate Migration of Pro-Inflammatory M1 Macrophages through the Mesothelial Membrane Is Affected by Ceramide Kinase and Ceramide 1-P. Int J Mol Sci 2022; 23:ijms232415977. [PMID: 36555618 PMCID: PMC9785226 DOI: 10.3390/ijms232415977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/04/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
The retrograde flow of endometrial tissues deposited into the peritoneal cavity occurs in women during menstruation. Classically (M1) or alternatively (M2) activated macrophages partake in the removal of regurgitated menstrual tissue. The failure of macrophage egress from the peritoneal cavity through the mesothelium leads to chronic inflammation in endometriosis. To study the migration differences of macrophage phenotypes across mesothelial cells, an in vitro model of macrophage egress across a peritoneal mesothelial cell monolayer membrane was developed. M1 macrophages were more sessile, emigrating 2.9-fold less than M2 macrophages. The M1 macrophages displayed a pro-inflammatory cytokine signature, including IL-1α, IL-1β, TNF-α, TNF-β, and IL-12p70. Mass spectrometry sphingolipidomics revealed decreased levels of ceramide-1-phosphate (C1P), an inducer of migration in M1 macrophages, which correlated with its poor migration behavior. C1P is generated by ceramide kinase (CERK) from ceramide, and blocking C1P synthesis via the action of NVP231, a specific CERK chemical inhibitor, prohibited the emigration of M1 and M2 macrophages up to 6.7-fold. Incubation with exogenously added C1P rescued this effect. These results suggest that M1 macrophages are less mobile and have higher retention in the peritoneum due to lower C1P levels, which contributes to an altered peritoneal environment in endometriosis by generating a predominant pro-inflammatory cytokine environment.
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Collier F, Chau C, Mansell T, Faye-Chauhan K, Vuillermin P, Ponsonby AL, Saffery R, Tang MLK, O'Hely M, Carlin J, Gray LEK, Bekkering S, Burgner D. Innate Immune Activation and Circulating Inflammatory Markers in Preschool Children. Front Immunol 2022; 12:830049. [PMID: 35211111 PMCID: PMC8860896 DOI: 10.3389/fimmu.2021.830049] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 12/28/2021] [Indexed: 12/17/2022] Open
Abstract
Early childhood is characterised by repeated infectious exposures that result in inflammatory responses by the innate immune system. In addition, this inflammatory response to infection is thought to contribute to the epidemiological evidence linking childhood infection and adult non-communicable diseases. Consequently, the relationship between innate immune responses and inflammation during early life may inform prevention of NCDs later in life. In adults, non-genetic host factors such as age, sex, and obesity, strongly impact cytokine production and circulating mediators, but data in children are lacking. Here, we assessed cytokine responses and inflammatory markers in a population of healthy preschool children (mean age 4.2 years). We studied associations between cytokines, plasma inflammatory markers and non-genetic host factors, such as sex, age, adiposity, season, and immune cell composition. Similar to adults, boys had a higher inflammatory response than girls, with IL-12p70 and IL-10 upregulated following TLR stimulation. Adiposity and winter season were associated with increased circulating inflammatory markers but not cytokine production. The inflammatory markers GlycA and hsCRP were positively associated with production of a number of cytokines and may therefore reflect innate immune function and inflammatory potential. This dataset will be informative for future prospective studies relating immune parameters to preclinical childhood NCD phenotypes.
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Affiliation(s)
- Fiona Collier
- School of Medicine, Deakin University, Geelong, VIC, Australia.,Child Health Research Unit, Barwon Health, Geelong, VIC, Australia
| | - Cerys Chau
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia
| | - Toby Mansell
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia
| | | | - Peter Vuillermin
- School of Medicine, Deakin University, Geelong, VIC, Australia.,Child Health Research Unit, Barwon Health, Geelong, VIC, Australia.,Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia
| | - Anne-Louise Ponsonby
- School of Medicine, Deakin University, Geelong, VIC, Australia.,Department of Neuroepidemiology, The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
| | - Richard Saffery
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia.,Department of Neuroepidemiology, The Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
| | - Mimi L K Tang
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia.,Department of Paediatrics, Melbourne University, Parkville, VIC, Australia
| | - Martin O'Hely
- School of Medicine, Deakin University, Geelong, VIC, Australia.,Child Health Research Unit, Barwon Health, Geelong, VIC, Australia.,Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia
| | - John Carlin
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia.,Department of Paediatrics, Melbourne University, Parkville, VIC, Australia
| | | | - Siroon Bekkering
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia.,Department of Internal Medicine and Radboud Institute for Molecular Life Science (RIMLS), Radboud University Medical Center, Nijmegen, Netherlands
| | - David Burgner
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia.,Department of Paediatrics, Melbourne University, Parkville, VIC, Australia.,Department of Paediatrics, Monash University, Clayton, VIC, Australia
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10
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Acute Neurological Involvement after Donor Lymphocyte Infusion for Post-Transplant Viral Infection: The Same Pattern of Novel Cancer Immunotherapy-Related CNS Toxicity? Int J Mol Sci 2022; 23:ijms23073553. [PMID: 35408912 PMCID: PMC8998460 DOI: 10.3390/ijms23073553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 02/01/2023] Open
Abstract
Early post-transplant is the critical phase for the success of hematopoietic stem cell transplantation (HSCT). New viral infections and the reactivations associated with complete ablation of the recipient's T-cell immunity and inefficient reconstitution of the donor-derived system represent the main risks of HSCT. To date, the pharmacological treatments for post-HSCT viral infection-related complications have many limitations. Adoptive cell therapy (ACT) represents a new pharmacological strategy, allowing us to reconstitute the immune response to infectious agents in the post-HSC period. To demonstrate the potential advantage of this novel immunotherapy strategy, we report three cases of pediatric patients and the respective central nervous system complications after donor lymphocyte infusion.
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11
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Liu L, Li Q, Yang Y, Guo A. Biological Function of Short-Chain Fatty Acids and Its Regulation on Intestinal Health of Poultry. Front Vet Sci 2021; 8:736739. [PMID: 34733901 PMCID: PMC8558227 DOI: 10.3389/fvets.2021.736739] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/16/2021] [Indexed: 12/12/2022] Open
Abstract
Short-chain fatty acids (SCFAs) are metabolites generated by bacterial fermentation of dietary fiber (DF) in the hindgut. SCFAs are mainly composed of acetate, propionate and butyrate. Many studies have shown that SCFAs play a significant role in the regulation of intestinal health in poultry. SCFAs are primarily absorbed from the intestine and used by enterocytes as a key substrate for energy production. SCFAs can also inhibit the invasion and colonization of pathogens by lowering the intestinal pH. Additionally, butyrate inhibits the expression of nitric oxide synthase (NOS), which encodes inducible nitric oxide synthase (iNOS) in intestinal cells via the PPAR-γ pathway. This pathway causes significant reduction of iNOS and nitrate, and inhibits the proliferation of Enterobacteriaceae to maintain overall intestinal homeostasis. SCFAs can enhance the immune response by stimulating cytokine production (e.g. TNF-α, IL-2, IL-6, and IL-10) in the immune cells of the host. Similarly, it has been established that SCFAs promote the differentiation of T cells into T regulatory cells (Tregs) and expansion by binding to receptors, such as Toll-like receptors (TLR) and G protein-coupled receptors (GPRs), on immune cells. SCFAs have been shown to repair intestinal mucosa and alleviate intestinal inflammation by activating GPRs, inhibiting histone deacetylases (HDACs), and downregulating the expression of pro-inflammatory factor genes. Butyrate improves tight-junction-dependent intestinal barrier function by promoting tight junction (TJ) assembly. In recent years, the demand for banning antibiotics has increased in poultry production. Therefore, it is extremely important to maintain the intestinal health and sustainable production of poultry. Taking nutrition strategies is important to regulate SCFA production by supplementing dietary fiber and prebiotics, SCFA-producing bacteria (SPB), and additives in poultry diet. However, excessive SCFAs will lead to the enteritis in poultry production. There may be an optimal level and proportion of SCFAs in poultry intestine, which benefits to gut health of poultry. This review summarizes the biological functions of SCFAs and their role in gut health, as well as nutritional strategies to regulate SCFA production in the poultry gut.
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Affiliation(s)
- Lixuan Liu
- Faculty of Life Sciences, Southwest Forestry University, Kunming, China
| | - Qingqing Li
- Faculty of Life Sciences, Southwest Forestry University, Kunming, China
- Kunming Xianghao Technology Co., Ltd., Kunming, China
| | - Yajin Yang
- Faculty of Life Sciences, Southwest Forestry University, Kunming, China
| | - Aiwei Guo
- Faculty of Life Sciences, Southwest Forestry University, Kunming, China
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12
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Tan Q, Liang N, Zhang X, Li J. Dynamic Aging: Channeled Through Microenvironment. Front Physiol 2021; 12:702276. [PMID: 34366891 PMCID: PMC8334186 DOI: 10.3389/fphys.2021.702276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/23/2021] [Indexed: 12/16/2022] Open
Abstract
Aging process is a complicated process that involves deteriorated performance at multiple levels from cellular dysfunction to organ degeneration. For many years research has been focused on how aging changes things within cell. However, new findings suggest that microenvironments, circulating factors or inter-tissue communications could also play important roles in the dynamic progression of aging. These out-of-cell mechanisms pass on the signals from the damaged aging cells to other healthy cells or tissues to promote systematic aging phenotypes. This review discusses the mechanisms of how senescence and their secretome, NAD+ metabolism or circulating factors change microenvironments to regulate systematic aging, as well as the potential therapeutic strategies based on these findings for anti-aging interventions.
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Affiliation(s)
- Qing Tan
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Na Liang
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoqian Zhang
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jun Li
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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13
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Cosenza M, Sacchi S, Pozzi S. Cytokine Release Syndrome Associated with T-Cell-Based Therapies for Hematological Malignancies: Pathophysiology, Clinical Presentation, and Treatment. Int J Mol Sci 2021; 22:ijms22147652. [PMID: 34299273 PMCID: PMC8305850 DOI: 10.3390/ijms22147652] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/15/2021] [Accepted: 07/15/2021] [Indexed: 01/08/2023] Open
Abstract
Cytokines are a broad group of small regulatory proteins with many biological functions involved in regulating the hematopoietic and immune systems. However, in pathological conditions, hyperactivation of the cytokine network constitutes the fundamental event in cytokine release syndrome (CRS). During the last few decades, the development of therapeutic monoclonal antibodies and T-cell therapies has rapidly evolved, and CRS can be a serious adverse event related to these treatments. CRS is a set of toxic adverse events that can be observed during infection or following the administration of antibodies for therapeutic purposes and, more recently, during T-cell-engaging therapies. CRS is triggered by on-target effects induced by binding of chimeric antigen receptor (CAR) T cells or bispecific antibody to its antigen and by subsequent activation of bystander immune and non-immune cells. CRS is associated with high circulating concentrations of several pro-inflammatory cytokines, including interleukins, interferons, tumor necrosis factors, colony-stimulating factors, and transforming growth factors. Recently, considerable developments have been achieved with regard to preventing and controlling CRS, but it remains an unmet clinical need. This review comprehensively summarizes the pathophysiology, clinical presentation, and treatment of CRS caused by T-cell-engaging therapies utilized in the treatment of hematological malignancies.
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14
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Nienałtowski K, Rigby RE, Walczak J, Zakrzewska KE, Głów E, Rehwinkel J, Komorowski M. Fractional response analysis reveals logarithmic cytokine responses in cellular populations. Nat Commun 2021; 12:4175. [PMID: 34234126 PMCID: PMC8263596 DOI: 10.1038/s41467-021-24449-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 06/17/2021] [Indexed: 01/10/2023] Open
Abstract
Although we can now measure single-cell signaling responses with multivariate, high-throughput techniques our ability to interpret such measurements is still limited. Even interpretation of dose–response based on single-cell data is not straightforward: signaling responses can differ significantly between cells, encompass multiple signaling effectors, and have dynamic character. Here, we use probabilistic modeling and information-theory to introduce fractional response analysis (FRA), which quantifies changes in fractions of cells with given response levels. FRA can be universally performed for heterogeneous, multivariate, and dynamic measurements and, as we demonstrate, quantifies otherwise hidden patterns in single-cell data. In particular, we show that fractional responses to type I interferon in human peripheral blood mononuclear cells are very similar across different cell types, despite significant differences in mean or median responses and degrees of cell-to-cell heterogeneity. Further, we demonstrate that fractional responses to cytokines scale linearly with the log of the cytokine dose, which uncovers that heterogeneous cellular populations are sensitive to fold-changes in the dose, as opposed to additive changes. Our ability to interpret single-cell multivariate signaling responses is still limited. Here the authors introduce fractional response analysis (FRA), involving fractional cell counting, capable of deconvoluting heterogeneous multivariate responses of cellular populations.
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Affiliation(s)
- Karol Nienałtowski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Rachel E Rigby
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Jarosław Walczak
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Karolina E Zakrzewska
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Edyta Głów
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Jan Rehwinkel
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Michał Komorowski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland.
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15
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Li J, Ma S, Li Z, Yu W, Zhou P, Ye X, Islam MS, Zhang YA, Zhou Y, Li J. Construction and Characterization of an Aeromonas hydrophila Multi-Gene Deletion Strain and Evaluation of Its Potential as a Live-Attenuated Vaccine in Grass Carp. Vaccines (Basel) 2021; 9:vaccines9050451. [PMID: 34063680 PMCID: PMC8147641 DOI: 10.3390/vaccines9050451] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/17/2021] [Accepted: 04/26/2021] [Indexed: 11/18/2022] Open
Abstract
Aeromonas hydrophila is an important pathogen that causes motile Aeromonas septicemia (MAS) in the aquaculture industry. Aerolysin, hemolysin, serine protease and enterotoxins are considered to be the major virulence factors of A. hydrophila. In this study, we constructed a five-gene (aerA, hly, ahp, alt and ast) deletion mutant strain (named Aeromonas hydrophila five-gene deletion strain, AHFGDS) to observe the biological characteristics and detect its potential as a live-attenuated vaccine candidate. AHFGDS displayed highly attenuated and showed increased susceptibility to fish blood and skin mucus killing, while the wild-type strain ZYAH72 was highly virulent. In zebrafish (Danio rerio), AHFGDS showed a 240-fold higher 50% lethal dose (LD50) than that of the wild-type strain. Immunization with AHFGDS by intracelomic injection or immersion routes both provided grass carp (Ctenopharyngodon idella) significant protection against the challenge of the strain ZYAH72 or J-1 and protected the fish organs from serious injury. Further agglutinating antibody titer test supported that AHFGDS could elicit a host-adaptive immune response. These results suggested the potential of AHFGDS to serve as a live-attenuated vaccine to control A. hydrophila infection in aquaculture.
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Affiliation(s)
- Jihong Li
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (J.L.); (S.M.); (W.Y.); (P.Z.); (X.Y.); (Y.-A.Z.)
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430070, China
| | - Shilin Ma
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (J.L.); (S.M.); (W.Y.); (P.Z.); (X.Y.); (Y.-A.Z.)
| | - Zhi Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.L.); (M.S.I.); (J.L.)
| | - Wei Yu
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (J.L.); (S.M.); (W.Y.); (P.Z.); (X.Y.); (Y.-A.Z.)
| | - Peng Zhou
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (J.L.); (S.M.); (W.Y.); (P.Z.); (X.Y.); (Y.-A.Z.)
| | - Xiang Ye
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (J.L.); (S.M.); (W.Y.); (P.Z.); (X.Y.); (Y.-A.Z.)
| | - Md. Sharifull Islam
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.L.); (M.S.I.); (J.L.)
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yong-An Zhang
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (J.L.); (S.M.); (W.Y.); (P.Z.); (X.Y.); (Y.-A.Z.)
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
| | - Yang Zhou
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (J.L.); (S.M.); (W.Y.); (P.Z.); (X.Y.); (Y.-A.Z.)
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
- Correspondence: ; Tel.: +86-27-87282113; Fax: +86-27-87282114
| | - Jinquan Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Z.L.); (M.S.I.); (J.L.)
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16
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Menter A, Krueger GG, Paek SY, Kivelevitch D, Adamopoulos IE, Langley RG. Interleukin-17 and Interleukin-23: A Narrative Review of Mechanisms of Action in Psoriasis and Associated Comorbidities. Dermatol Ther (Heidelb) 2021; 11:385-400. [PMID: 33512665 PMCID: PMC8019008 DOI: 10.1007/s13555-021-00483-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is an immune-mediated inflammatory skin disease associated with numerous inflammatory comorbidities, including increased cardiovascular risk. The interleukin (IL)-23/IL-17 axis plays a central role in the immunopathogenesis of psoriasis and related comorbidities by acting to stimulate keratinocyte hyperproliferation and feed-forwarding circuits of perpetual T cell-mediated inflammation. IL-17 plays an important role in the downstream portion of the psoriatic inflammatory cascade. This review discusses the distinct mechanisms of action of IL-17 and IL-23 in the immunopathogenesis of psoriasis and related comorbidities plus the significant therapeutic benefits of selectively inhibiting these cytokines in patients with moderate to severe plaque psoriasis.
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Affiliation(s)
| | | | | | | | - Iannis E Adamopoulos
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis, Sacramento, CA, USA
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17
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Bender DE, Schaettler MO, Sheehan KC, Johanns TM, Dunn GP. Cytokine Profiling in Plasma from Patients with Brain Tumors Versus Healthy Individuals using 2 Different Multiplex Immunoassay Platforms. Biomark Insights 2021; 16:11772719211006666. [PMID: 33854293 PMCID: PMC8013708 DOI: 10.1177/11772719211006666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/11/2021] [Indexed: 01/18/2023] Open
Abstract
We compared the performance of two 96-well multiplex immunoassay platforms in assessing plasma cytokine concentrations in patients with glioblastoma (GBM; n = 27), individuals with melanoma, breast or lung cancer metastases to the brain (n = 17), and healthy volunteers (n = 11). Assays included a bead-based fluorescence MILLIPLEX® assay/Luminex (LMX) platform and 4 planar electrochemiluminescence kits from Meso Scale Discovery (MSD). The LMX kit evaluated 21 cytokines and the 3 MSD kits evaluated 20 cytokines in total, with 19 overlapping human cytokines between platforms (GM-CSF, IFNγ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12p70, IL-13, IL-17A, IL-21, IL-23, MIP-1α, MIP-1β, MIP-3α, TNFα). The MSD platform had lower LLoQs (lower limits of quantification) than LMX for 17/19 cytokines, and higher LLoQs for IFN-γ and IL-21. The ULoQs were higher in LMX versus MSD assays for 17/19 shared analytes, but lower than MSD for IL-17A and IL-21. With LMX, all 19 shared analytes were quantifiable in each of 55 samples. Although MSD recombinant protein standard curves indicated lower LLoQs than LMX for most cytokines, MSD detected 7/19 (37%) native analytes in <75% of samples, including 0% detection for IL-21 and 8% for IL-23. The LMX platform categorized identical samples at greater concentrations than the MSD system for most analytes (MIP-1β the sole exception), sometimes by orders of magnitude. This mismatched quantification paradigm was supported by Bland-Altman analysis. LMX identified significantly elevated levels of 10 of 19 circulating cytokines in GBM: GM-CSF, IFN-γ, IL-1β, IL-5, IL-10, IL-17A, IL-21, IL-23, MIP-1α, and MIP-3α, consistent with prior findings and confirming the utility of applying appropriate multiplex immunoassay technologies toward developing a cytokine signature profile for GBM.
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Affiliation(s)
- Diane Elizabeth Bender
- The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA
| | - Maximilian O Schaettler
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Kathleen Cf Sheehan
- The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA.,Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Tanner M Johanns
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO, USA.,The Alvin J. Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, MO, USA
| | - Gavin P Dunn
- The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA.,Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA.,The Alvin J. Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, MO, USA
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18
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Nogues P, Dos Santos E, Couturier-Tarrade A, Berveiller P, Arnould L, Lamy E, Grassin-Delyle S, Vialard F, Dieudonne MN. Maternal Obesity Influences Placental Nutrient Transport, Inflammatory Status, and Morphology in Human Term Placenta. J Clin Endocrinol Metab 2021; 106:e1880-e1896. [PMID: 32936881 DOI: 10.1210/clinem/dgaa660] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 09/15/2020] [Indexed: 01/04/2023]
Abstract
CONTEXT Maternal obesity has a significant impact on placental development. However, this impact on the placenta's structure and function (ie, nutrient transport and hormone and cytokine production) is a controversial subject. OBJECTIVE We hypothesized that maternal obesity is associated with morphologic, secretory, and nutrient-related changes and elevated levels of inflammation in the placenta. DESIGN We collected samples of placental tissue from 2 well-defined groups of pregnant women from 2017 to 2019. We compared the 2 groups regarding placental cytokine and hormone secretion, immune cell content, morphology, and placental nutrient transporter expressions. SETTING Placenta were collected after caesarean section performed by experienced clinicians at Centre Hospitalier Intercommunal (CHI) of Poissy-Saint-Germain-en-Laye. PATIENTS The main inclusion criteria were an age between 27 and 37 years old, no complications of pregnancy, and a first-trimester body mass index of 18-25 kg/m2 for the nonobese (control) group and 30-40 kg/m2 for the obese group. RESULTS In contrast to our starting hypothesis, we observed that maternal obesity was associated with (1) lower placental IL-6 expression and macrophage/leukocyte infiltration, (2) lower placental expression of GLUT1 and SNAT1-2, (3) a lower placental vessel density, and (4) lower levels of placental leptin and human chorionic gonadotropin production. CONCLUSION These results suggest that the placenta is a plastic organ and could optimize fetal growth. A better understanding of placental adaptation is required because these changes may partly determine the fetal outcome in cases of maternal obesity.
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Affiliation(s)
- Perrine Nogues
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
| | - Esther Dos Santos
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
- Service de Biologie Médicale, Centre Hospitalier Intercommunal de Poissy-Saint-Germain, Poissy, France
| | - Anne Couturier-Tarrade
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
| | - Paul Berveiller
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
- Service de Gynécologie-Obstétrique, Centre Hospitalier Intercommunal de Poissy-Saint-Germain-en-Laye, Poissy, France
| | - Lucie Arnould
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
| | - Elodie Lamy
- Université Paris-Saclay, UVSQ, INSERM, Infection et inflammation, Département de Biotechnologie de la Santé, Montigny le Bretonneux, France
| | - Stanislas Grassin-Delyle
- Université Paris-Saclay, UVSQ, INSERM, Infection et inflammation, Département de Biotechnologie de la Santé, Montigny le Bretonneux, France
- Hôpital Foch, Département des maladies des voies respiratoires, Suresnes, France
| | - François Vialard
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
- Département de Biologie de la Reproduction, Cytogénétique, Gynécologie et Obstétrique, Centre Hospitalier Intercommunal de Poissy-Saint-Germain-en-Laye, Poissy, France
| | - Marie-Noëlle Dieudonne
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France
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19
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Belanger M, Ball AG, Catterton MA, Kinman AW, Anbaei P, Groff BD, Melchor SJ, Lukens JR, Ross AE, Pompano RR. Acute Lymph Node Slices Are a Functional Model System to Study Immunity Ex Vivo. ACS Pharmacol Transl Sci 2021; 4:128-142. [PMID: 33615167 PMCID: PMC7887751 DOI: 10.1021/acsptsci.0c00143] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Indexed: 02/07/2023]
Abstract
The lymph node is a highly organized and dynamic structure that is critical for facilitating the intercellular interactions that constitute adaptive immunity. Most ex vivo studies of the lymph node begin by reducing it to a cell suspension, thus losing the spatial organization, or fixing it, thus losing the ability to make repeated measurements. Live murine lymph node tissue slices offer the potential to retain spatial complexity and dynamic accessibility, but their viability, level of immune activation, and retention of antigen-specific functions have not been validated. Here we systematically characterized live murine lymph node slices as a platform to study immunity. Live lymph node slices maintained the expected spatial organization and cell populations while reflecting the 3D spatial complexity of the organ. Slices collected under optimized conditions were comparable to cell suspensions in terms of both 24-h viability and inflammation. Slices responded to T cell receptor cross-linking with increased surface marker expression and cytokine secretion, in some cases more strongly than matched lymphocyte cultures. Furthermore, slices processed protein antigens, and slices from vaccinated animals responded to ex vivo challenge with antigen-specific cytokine secretion. In summary, lymph node slices provide a versatile platform to investigate immune functions in spatially organized tissue, enabling well-defined stimulation, time-course analysis, and parallel read-outs.
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Affiliation(s)
- Maura
C. Belanger
- Department
of Chemistry, University of Virginia College
of Arts and Sciences, Charlottesville, Virginia 22904, United States
- Carter
Immunology Center, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Alexander G. Ball
- Carter
Immunology Center, University of Virginia, Charlottesville, Virginia 22904, United States
- Department
of Microbiology, Immunology and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia 22904, United States
| | - Megan A. Catterton
- Department
of Chemistry, University of Virginia College
of Arts and Sciences, Charlottesville, Virginia 22904, United States
| | - Andrew W.L. Kinman
- Department
of Chemistry, University of Virginia College
of Arts and Sciences, Charlottesville, Virginia 22904, United States
| | - Parastoo Anbaei
- Department
of Chemistry, University of Virginia College
of Arts and Sciences, Charlottesville, Virginia 22904, United States
| | - Benjamin D. Groff
- Department
of Chemistry, University of Virginia College
of Arts and Sciences, Charlottesville, Virginia 22904, United States
| | - Stephanie J. Melchor
- Carter
Immunology Center, University of Virginia, Charlottesville, Virginia 22904, United States
- Department
of Microbiology, Immunology and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia 22904, United States
| | - John R. Lukens
- Carter
Immunology Center, University of Virginia, Charlottesville, Virginia 22904, United States
- Department
of Neuroscience and Center for Brain Immunology and Glia (BIG), University of Virginia School of Medicine, Charlottesville, Virginia 22904, United States
| | - Ashley E. Ross
- Department
of Chemistry, University of Cincinnati, Cincinnati, Ohio 45220, United States
| | - Rebecca R. Pompano
- Department
of Chemistry, University of Virginia College
of Arts and Sciences, Charlottesville, Virginia 22904, United States
- Carter
Immunology Center, University of Virginia, Charlottesville, Virginia 22904, United States
- Department
of Biomedical Engineering, University of
Virginia School of Engineering and Applied Sciences, Charlottesville, Virginia 22904, United States
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20
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Günther A, Becker M, Göpfert J, Joos T, Schneiderhan-Marra N. Comparison of Bead-Based Fluorescence Versus Planar Electrochemiluminescence Multiplex Immunoassays for Measuring Cytokines in Human Plasma. Front Immunol 2020; 11:572634. [PMID: 33101295 PMCID: PMC7546899 DOI: 10.3389/fimmu.2020.572634] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/07/2020] [Indexed: 12/31/2022] Open
Abstract
This study compared two 96-well multiplex immunoassay platforms for analytical performance in assessing cytokine concentrations in standards, quality controls and human plasma samples (n = 62), and evaluated assay time requirements. Assays included a bead-based fluorescence MILLIPLEX® assay/Luminex fluorescence platform (LMX) and three kits from Meso Scale Discovery (MSD) in planar electrochemiluminescence format. The LMX kit evaluated 21 cytokines and the MSD kits evaluated 10 cytokines each, with 16 overlapping cytokines between platforms. Both assays provided good reproducibility in standard curves for all analytes. Interassay CVs of shared analytes showed average kit quality control CVs ranging 1.9–18.2% for LMX and 2.4–13.9% for MSD. The MSD platform had lower LLoQs than LMX for 14/16 shared cytokines. For IL-17, the LLoQ was lower with LMX than MSD, and the LLoQs for IL-6 were similar. Although MSD calibration curves indicated lower LLoQs for most of those analytes, many more cytokines in human plasma samples were not detected by MSD than by LMX. The ULoQs were higher in LMX versus MSD assays for 13/16 shared analytes, lower than MSD for IL-17, and equivalent between assays for IL-6 and MIP-1α. Bland-Altman plots indicated that MSD classified 13/16 shared analytes as concentrations lower than by LMX. Time and motion analysis indicated that total mean assay times were 20 h 28 m and 21 h 33 m for LMX and MSD, respectively, including an overnight (17 h) incubation. The MSD assays employed a manufacturer-approved overnight incubation instead of the standard 2-h incubation, which kit instructions suggest might increase detection sensitivity. Hands-on labor time averaged 1 h 37 m for LMX and 2 h 33 m for MSD. In summary, assay selection factors should include selection of specific markers of interest, time and cost considerations, and anticipated cytokine concentrations in prospective samples.
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Affiliation(s)
- Anna Günther
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Tübingen, Germany
| | - Matthias Becker
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Tübingen, Germany
| | - Jens Göpfert
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Tübingen, Germany
| | - Thomas Joos
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Tübingen, Germany
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Food as medicine: targeting the uraemic phenotype in chronic kidney disease. Nat Rev Nephrol 2020; 17:153-171. [PMID: 32963366 DOI: 10.1038/s41581-020-00345-8] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2020] [Indexed: 02/07/2023]
Abstract
The observation that unhealthy diets (those that are low in whole grains, fruits and vegetables, and high in sugar, salt, saturated fat and ultra-processed foods) are a major risk factor for poor health outcomes has boosted interest in the concept of 'food as medicine'. This concept is especially relevant to metabolic diseases, such as chronic kidney disease (CKD), in which dietary approaches are already used to ameliorate metabolic and nutritional complications. Increased awareness that toxic uraemic metabolites originate not only from intermediary metabolism but also from gut microbial metabolism, which is directly influenced by diet, has fuelled interest in the potential of 'food as medicine' approaches in CKD beyond the current strategies of protein, sodium and phosphate restriction. Bioactive nutrients can alter the composition and metabolism of the microbiota, act as modulators of transcription factors involved in inflammation and oxidative stress, mitigate mitochondrial dysfunction, act as senolytics and impact the epigenome by altering one-carbon metabolism. As gut dysbiosis, inflammation, oxidative stress, mitochondrial dysfunction, premature ageing and epigenetic changes are common features of CKD, these findings suggest that tailored, healthy diets that include bioactive nutrients as part of the foodome could potentially be used to prevent and treat CKD and its complications.
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Couto MR, Gonçalves P, Magro F, Martel F. Microbiota-derived butyrate regulates intestinal inflammation: Focus on inflammatory bowel disease. Pharmacol Res 2020; 159:104947. [DOI: 10.1016/j.phrs.2020.104947] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/04/2020] [Accepted: 05/19/2020] [Indexed: 12/12/2022]
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Scrodentoids H and I, a Pair of Natural Epimerides from Scrophularia dentata, Inhibit Inflammation through JNK-STAT3 Axis in THP-1 Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:1842347. [PMID: 32802115 PMCID: PMC7403932 DOI: 10.1155/2020/1842347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/30/2020] [Indexed: 11/25/2022]
Abstract
Background Scrophularia dentata is an important medicinal plant and used for the treatment of exanthema and fever in Traditional Tibetan Medicine. Scrodentoids H and I (SHI), a pair of epimerides of C19-norditerpenoids isolated from Scrophularia dentata, could transfer to each other in room temperature and were firstly reported in our previous work. Here, we first reported the anti-inflammatory effects of SHI on LPS-induced inflammation. Purpose To evaluate the anti-inflammatory property of SHI, we investigated the effects of SHI on LPS-activated THP-1 cells. Methods THP-1 human macrophages were pretreated with SHI and stimulated with LPS. Proinflammatory cytokines IL-1β and IL-6 were measured by RT-PCR and enzyme-linked immunosorbent assays (ELISA). The mechanism of action involving phosphorylation of ERK, JNK, P38, and STAT3 was measured by western Blot. The NF-κB promoter activity was evaluated by Dual-Luciferase Reporter Assay System in TNF-α stimulated 293T cells. Results SHI dose-dependently reduced the production of proinflammatory cytokines IL-1β and IL-6. The ability of SHI to reduce production of cytokines is associated with phosphorylation depress of JNK and STAT3 rather than p38, ERK, and NF-κB promoter. Conclusions Our experimental results indicated that anti-inflammatory effects of SHI exhibit attenuation of LPS-induced inflammation and inhibit activation through JNK/STAT3 pathway in macrophages. These results suggest that SHI might have a potential in treating inflammatory disease.
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Chillappagari S, Garapati V, Mahavadi P, Naehrlich L, Schmeck BT, Schmitz ML, Guenther A. Defective BACH1/HO-1 regulatory circuits in cystic fibrosis bronchial epithelial cells. J Cyst Fibros 2020; 20:140-148. [PMID: 32534959 DOI: 10.1016/j.jcf.2020.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/01/2020] [Accepted: 05/23/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND The stress-regulated enzyme hemeoxygenase-1 (HO-1) contributes to the cell response towards inflammation and oxidative stress. We previously reported on curtailed HO-1 expression in cystic fibrosis (CF) bronchial epithelial (CFBE41o-) cells and CF-mice, but the molecular mechanisms for this are not known. Here, we compared healthy and CF bronchial epithelial cells for regulatory circuits controlling HO-1 protein levels. METHODS In this study, we employed immunohistochemistry on CF and healthy lung sections to examine the BACH1 protein expression. Alteration of BACH1 protein levels in 16HBE14o- and CFBE41o- cells was achieved by using either siRNA-mediated knockdown of BACH1 or by increasing miRNA-155 levels. HO-1 luciferase reporter assay was chosen to examine the downstream affects after BACH1 modulation. RESULTS Human CF lungs and cells showed increased levels of the HO-1 transcriptional repressor, BACH1, and increased miR-155 expression. Knockdown studies using BACH1 siRNA and overexpression of miR-155 did not significantly rescue HO-1 expression in CFBE41o- cells. Elevated BACH1 expression detected in CF cells was refractory to the inhibitory function of miR-155 and was instead due to increased protein stability. CONCLUSION We observed defects in the inhibitory activities of miR-155 and BACH1 on HO-1 expression in CF cells. Thus various defective regulatory loops account for dysregulated BACH1 expression in CF, which in turn may contribute to low HO-1 levels.
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Affiliation(s)
- Shashipavan Chillappagari
- Institute of Biochemistry, Justus-Liebig-University, D-35392, Giessen, Germany; Department of Internal Medicine, Justus-Liebig University, Giessen, Germany; University of Giessen and Marburg Lung Center (UGMLC), Member of the German Centre for Lung Research (DZL), Giessen, Germany.
| | - Virajith Garapati
- Department of Internal Medicine, Justus-Liebig University, Giessen, Germany; University of Giessen and Marburg Lung Center (UGMLC), Member of the German Centre for Lung Research (DZL), Giessen, Germany
| | - Poornima Mahavadi
- Department of Internal Medicine, Justus-Liebig University, Giessen, Germany; University of Giessen and Marburg Lung Center (UGMLC), Member of the German Centre for Lung Research (DZL), Giessen, Germany
| | - Lutz Naehrlich
- University of Giessen and Marburg Lung Center (UGMLC), Member of the German Centre for Lung Research (DZL), Giessen, Germany; Department of Pediatrics, Justus Liebig University, Giessen, Feulgenstrasse 12, 35392 Giessen, Germany
| | - Bernd T Schmeck
- University of Giessen and Marburg Lung Center (UGMLC), Member of the German Centre for Lung Research (DZL), Giessen, Germany; Institute for Lung Research, Department of Respiratory and Critical Care Medicine, University Medical Center Marburg, Center for Synthetic Microbiology (SYNMIKRO), Philipps-University, Marburg, Germany, Member of the German Center for Lung Research (DZL), and the German Center of Infection Research (DZIF), Marburg, Germany
| | - M Lienhard Schmitz
- Institute of Biochemistry, Justus-Liebig-University, D-35392, Giessen, Germany
| | - Andreas Guenther
- Department of Internal Medicine, Justus-Liebig University, Giessen, Germany; University of Giessen and Marburg Lung Center (UGMLC), Member of the German Centre for Lung Research (DZL), Giessen, Germany; Lung Clinic Waldhof-Elgershausen, Greifenstein, Germany
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Chiarini A, Armato U, Hu P, Dal Prà I. CaSR Antagonist (Calcilytic) NPS 2143 Hinders the Release of Neuroinflammatory IL-6, Soluble ICAM-1, RANTES, and MCP-2 from Aβ-Exposed Human Cortical Astrocytes. Cells 2020; 9:cells9061386. [PMID: 32498476 PMCID: PMC7349863 DOI: 10.3390/cells9061386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 02/07/2023] Open
Abstract
Available evidence shows that human cortical neurons’ and astrocytes’ calcium-sensing receptors (CaSRs) bind Amyloid-beta (Aβ) oligomers triggering the overproduction/oversecretion of several Alzheimer’s disease (AD) neurotoxins—effects calcilytics suppress. We asked whether Aβ•CaSR signaling might also play a direct pro-neuroinflammatory role in AD. Cortical nontumorigenic adult human astrocytes (NAHAs) in vitro were untreated (controls) or treated with Aβ25–35 ± NPS 2143 (a calcilytic) and any proinflammatory agent in their protein lysates and growth media assayed via antibody arrays, enzyme-linked immunosorbent assays (ELISAs), and immunoblots. Results show Aβ•CaSR signaling upregulated the synthesis and release/shedding of proinflammatory interleukin (IL)-6, intercellular adhesion molecule-1 (ICAM-1) (holoprotein and soluble [s] fragment), Regulated upon Activation, normal T cell Expressed and presumably Secreted (RANTES), and monocyte chemotactic protein (MCP)-2. Adding NPS 2143 (i) totally suppressed IL-6′s oversecretion while remarkably reducing the other agents’ over-release; and (ii) more effectively than Aβ alone increased over controls the four agents’ distinctive intracellular accumulation. Conversely, NPS 2143 did not alter Aβ-induced surges in IL-1β, IL-3, IL-8, and IL-16 secretion, consequently revealing their Aβ•CaSR signaling-independence. Finally, Aβ25–35 ± NPS 2143 treatments left unchanged MCP-1′s and TIMP-2′s basal expression. Thus, NAHAs Aβ•CaSR signaling drove four proinflammatory agents’ over-release that NPS 2143 curtailed. Therefore, calcilytics would also abate NAHAs’ Aβ•CaSR signaling direct impact on AD’s neuroinflammation.
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Affiliation(s)
- Anna Chiarini
- Human Histology and Embryology Section, Department of Surgery, Dentistry, Pediatrics and Gynecology, Medical School, University of Verona, Veneto, 37134 Verona, Italy; (U.A.); (P.H.)
- Correspondence: (A.C.); (I.D.P.); Tel.: +39-045-802-7646 (A.C.); +39-045-802-7161 (I.D.P)
| | - Ubaldo Armato
- Human Histology and Embryology Section, Department of Surgery, Dentistry, Pediatrics and Gynecology, Medical School, University of Verona, Veneto, 37134 Verona, Italy; (U.A.); (P.H.)
- Burns Department, Shenzhen Second People’s Hospital, University of Shenzhen, Shenzhen 518000, China
| | - Peng Hu
- Human Histology and Embryology Section, Department of Surgery, Dentistry, Pediatrics and Gynecology, Medical School, University of Verona, Veneto, 37134 Verona, Italy; (U.A.); (P.H.)
| | - Ilaria Dal Prà
- Human Histology and Embryology Section, Department of Surgery, Dentistry, Pediatrics and Gynecology, Medical School, University of Verona, Veneto, 37134 Verona, Italy; (U.A.); (P.H.)
- Burns Department, Shenzhen Second People’s Hospital, University of Shenzhen, Shenzhen 518000, China
- Correspondence: (A.C.); (I.D.P.); Tel.: +39-045-802-7646 (A.C.); +39-045-802-7161 (I.D.P)
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Peritoneal Fluid Cytokines Reveal New Insights of Endometriosis Subphenotypes. Int J Mol Sci 2020; 21:ijms21103515. [PMID: 32429215 PMCID: PMC7278942 DOI: 10.3390/ijms21103515] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/08/2020] [Accepted: 05/10/2020] [Indexed: 02/06/2023] Open
Abstract
Endometriosis is a common inflammatory gynecological disorder which causes pelvic scarring, pain, and infertility, characterized by the implantation of endometrial-like lesions outside the uterus. The peritoneum, ovaries, and deep soft tissues are the commonly involved sites, and endometriotic lesions can be classified into three subphenotypes: superficial peritoneal endometriosis (PE), ovarian endometrioma (OE), and deep infiltrating endometriosis (DIE). In 132 women diagnosed laparoscopically with and without endometriosis (n = 73, 59 respectively), and stratified into PE, OE, and DIE, peritoneal fluids (PF) were characterized for 48 cytokines by using multiplex immunoassays. Partial-least-squares-regression analysis revealed distinct subphenotype cytokine signatures—a six-cytokine signature distinguishing PE from OE, a seven-cytokine signature distinguishing OE from DIE, and a six-cytokine-signature distinguishing PE from DIE—each associated with different patterns of biological processes, signaling events, and immunology. These signatures describe endometriosis better than disease stages (p < 0.0001). Pathway analysis revealed the association of ERK1 and 2, AKT, MAPK, and STAT4 linked to angiogenesis, cell proliferation, migration, and inflammation in the subphenotypes. These data shed new insights on the pathophysiology of endometriosis subphenotypes, with the potential to exploit the cytokine signatures to stratify endometriosis patients for targeted therapies and biomarker discovery.
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Bandodkar PU, Al Asafen H, Reeves GT. Spatiotemporal control of gene expression boundaries using a feedforward loop. Dev Dyn 2020; 249:369-382. [PMID: 31925874 DOI: 10.1002/dvdy.150] [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: 10/11/2019] [Revised: 12/24/2019] [Accepted: 01/02/2020] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND A feedforward loop (FFL) is commonly observed in several biological networks. The FFL network motif has been mostly studied with respect to variation of the input signal in time, with only a few studies of FFL activity in a spatially distributed system such as morphogen-mediated tissue patterning. However, most morphogen gradients also evolve in time. RESULTS We studied the spatiotemporal behavior of a coherent FFL in two contexts: (a) a generic, oscillating morphogen gradient and (b) the dorsal-ventral patterning of the early Drosophila embryo by a gradient of the NF-κB homolog dorsal with its early target Twist. In both models, we found features in the dynamics of the intermediate node-phase difference and noise filtering-that were largely independent of the parameterization of the models, and thus were functions of the structure of the FFL itself. In the dorsal gradient model, we also found that proper target gene expression was not possible without including the effect of maternal pioneer factor Zelda. CONCLUSIONS An FFL buffers fluctuation to changes in the morphogen signal ensuring stable gene expression boundaries.
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Affiliation(s)
- Prasad U Bandodkar
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina
| | - Hadel Al Asafen
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina
| | - Gregory T Reeves
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina
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Gnanakkumaar P, Murugesan R, Ahmed SSSJ. Gene Regulatory Networks in Peripheral Mononuclear Cells Reveals Critical Regulatory Modules and Regulators of Multiple Sclerosis. Sci Rep 2019; 9:12732. [PMID: 31484947 PMCID: PMC6726613 DOI: 10.1038/s41598-019-49124-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 08/20/2019] [Indexed: 01/08/2023] Open
Abstract
Multiple sclerosis (MS) is a complex, demyelinating disease with the involvement of autoimmunity and neurodegeneration. Increasing efforts have been made towards identifying the diagnostic markers to differentiate the classes of MS from other similar neurological conditions. Using a systems biology approach, we constructed four types of gene regulatory networks (GRNs) involved in peripheral blood mononuclear cells (PBMCs). The regulatory strength of each GRN across primary progressive MS (PPMS), relapsing-remitting MS (RRMS), secondary progressive MS (SPMS), and control were evaluated by an integrity algorithm. Among the constructed GRNs (referred as TF_gene_miRNA), POU3F2_CDK6_hsa-miR-590-3p, MEIS1_CASC3_hsa-miR-1261, STAT3_OGG1_hsa-miR-298, and TCF4_FMR1_hsa-miR-301b were top-ranked and differentially regulated in all classes of MS compared to control. These GRNs showed potential involvement in regulating various molecular pathways such as interleukin, integrin, glypican, sphingosine phosphate, androgen, and Wnt signaling pathways. For validation, the qPCR analysis of the GRN components (TFs, gene, and miRNAs) in PBMCs of healthy controls (n = 30), RRMS (n = 14), PPMS (n = 13) and SPMS (n = 12) were carried out. Real-time expression analysis of GRNs showed a similar regulatory pattern as derived from our systems biology approach. Also, our study provided several novel GRNs that regulate unique and common molecular mechanisms between MS conditions. Hence, these regulatory components of GRNs will help to understand the disease mechanism across MS classes and further insight may though light towards diagnosis.
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Affiliation(s)
- Perumal Gnanakkumaar
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Kelambakkam, 603103, India
| | - Ram Murugesan
- Drug Discovery Lab, Faculty of Allied Health Sciences, Chettinad Hospital & Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, 603103, India
| | - Shiek S S J Ahmed
- Drug Discovery Lab, Faculty of Allied Health Sciences, Chettinad Hospital & Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, 603103, India.
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Single-Cell Analysis of Multiple Steps of Dynamic NF-κB Regulation in Interleukin-1α-Triggered Tumor Cells Using Proximity Ligation Assays. Cancers (Basel) 2019; 11:cancers11081199. [PMID: 31426445 PMCID: PMC6721548 DOI: 10.3390/cancers11081199] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/02/2019] [Accepted: 08/09/2019] [Indexed: 12/21/2022] Open
Abstract
The frequently occurring heterogeneity of cancer cells and their functional interaction with immune cells in the tumor microenvironment raises the need to study signaling pathways at the single cell level with high precision, sensitivity, and spatial resolution. As aberrant NF-κB activity has been implicated in almost all steps of cancer development, we analyzed the dynamic regulation and activation status of the canonical NF-κB pathway in control and IL-1α-stimulated individual cells using proximity ligation assays (PLAs). These systematic experiments allowed the visualization of the dynamic dissociation and re-formation of endogenous p65/IκBα complexes and the nuclear translocation of NF-κB p50/p65 dimers. PLA combined with immunostaining for p65 or with NFKBIA single molecule mRNA-FISH facilitated the analysis of (i) further levels of the NF-κB pathway, (i) its functionality for downstream gene expression, and (iii) the heterogeneity of the NF-κB response in individual cells. PLA also revealed the interaction between NF-κB p65 and the P-body component DCP1a, a new p65 interactor that contributes to efficient p65 NF-κB nuclear translocation. In summary, these data show that PLA technology faithfully mirrored all aspects of dynamic NF-κB regulation, thus allowing molecular diagnostics of this key pathway at the single cell level which will be required for future precision medicine.
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Organ crosstalk: the potent roles of inflammation and fibrotic changes in the course of organ interactions. Inflamm Res 2019; 68:825-839. [PMID: 31327029 DOI: 10.1007/s00011-019-01271-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/10/2019] [Accepted: 07/10/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Organ crosstalk can be defined as the complex and mutual biological communication between distant organs mediated by signaling factors. Normally, crosstalk helps to coordinate and maintain homeostasis, but sudden or chronic dysfunction in any organ causes dysregulation in another organ. Many signal molecules, including cytokines and growth factors, are involved in the metabolic dysregulation, and excessive or inappropriate release of these molecules leads to organ dysfunction or disease (e.g., obesity, type 2 diabetes). AIM AND METHOD The aim of this review is to reveal the impact of organ crosstalk on the pathogenesis of diseases associated with organ interactions and the role of inflammatory and fibrotic changes in the organ dysfunction. After searching in MEDLINE, PubMed and Google Scholar databases using 'organ crosstalk' as a keyword, studies related to organ crosstalk and organ interaction were compiled and examined. CONCLUSION The organ crosstalk and the functional integration of organ systems are exceedingly complex processes. Organ crosstalk contributes to metabolic homeostasis and affects the inflammatory response, related pathways and fibrotic changes. As in the case of interactions between adipose tissue and intestine, stimulation of inflammatory mechanisms plays an active role in the development of diseases including insulin resistance, obesity, type 2 diabetes and hepatic steatosis. The increased level of knowledge about the 'crosstalk' between any organ and distant organs will facilitate the early diagnosis of the disease as well as the management of the treatment practices in the short- and long-term organ dysfunction.
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Wnt signaling in intestinal inflammation. Differentiation 2019; 108:24-32. [DOI: 10.1016/j.diff.2019.01.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/17/2018] [Accepted: 01/18/2019] [Indexed: 12/12/2022]
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Riedlinger T, Bartkuhn M, Zimmermann T, Hake SB, Nist A, Stiewe T, Kracht M, Schmitz ML. Chemotherapeutic Drugs Inhibiting Topoisomerase 1 Activity Impede Cytokine-Induced and NF-κB p65-Regulated Gene Expression. Cancers (Basel) 2019; 11:cancers11060883. [PMID: 31242600 PMCID: PMC6627772 DOI: 10.3390/cancers11060883] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 02/03/2023] Open
Abstract
Inhibitors of DNA topoisomerase I (TOP1), an enzyme relieving torsional stress of DNA by generating transient single-strand breaks, are clinically used to treat ovarian, small cell lung and cervical cancer. As torsional stress is generated during transcription by progression of RNA polymerase II through the transcribed gene, we tested the effects of camptothecin and of the approved TOP1 inhibitors Topotecan and SN-38 on TNFα-induced gene expression. RNA-seq experiments showed that inhibition of TOP1 but not of TOP2 activity suppressed the vast majority of TNFα-triggered genes. The TOP1 effects were fully reversible and preferentially affected long genes. TNFα stimulation led to inducible recruitment of TOP1 to the gene body of IL8, where its inhibition by camptothecin reduced transcription elongation and also led to altered histone H3 acetylation. Together, these data show that TOP1 inhibitors potently suppress expression of proinflammatory cytokines, a feature that may contribute to the increased infection risk occurring in tumor patients treated with these agents. On the other hand, TOP1 inhibitors could also be considered as a therapeutic option in order to interfere with exaggerated cytokine expression seen in several inflammatory diseases.
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Affiliation(s)
- Tabea Riedlinger
- Institute of Biochemistry, Justus Liebig University, D-35392 Giessen, Germany.
| | - Marek Bartkuhn
- Institute for Genetics, Justus-Liebig University Giessen, 35392 Giessen, Germany.
| | - Tobias Zimmermann
- Bioinformatics and Systems Biology, University of Giessen, Heinrich-Buff-Ring 58-62, 35392 Giessen, Germany.
| | - Sandra B Hake
- Institute for Genetics, Justus-Liebig University Giessen, 35392 Giessen, Germany.
| | - Andrea Nist
- Genomics Core Facility and Institute of Molecular Oncology, Philipps University Marburg, D-35043 Marburg, Germany.
| | - Thorsten Stiewe
- Genomics Core Facility and Institute of Molecular Oncology, Philipps University Marburg, D-35043 Marburg, Germany.
| | - Michael Kracht
- Rudolf-Buchheim-Institute of Pharmacology, Justus Liebig University, D-35392 Giessen, Germany.
| | - M Lienhard Schmitz
- Institute of Biochemistry, Justus Liebig University, D-35392 Giessen, Germany.
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Uncoupling the Senescence-Associated Secretory Phenotype from Cell Cycle Exit via Interleukin-1 Inactivation Unveils Its Protumorigenic Role. Mol Cell Biol 2019; 39:MCB.00586-18. [PMID: 30988157 DOI: 10.1128/mcb.00586-18] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/06/2019] [Indexed: 01/07/2023] Open
Abstract
Cellular senescence has emerged as a potent tumor suppressor mechanism in numerous human neoplasias. Senescent cells secrete a distinct set of factors, collectively termed the senescence-associated secretory phenotype (SASP), which has been postulated to carry both pro- and antitumorigenic properties depending on tissue context. However, the in vivo effect of the SASP is poorly understood due to the difficulty of studying the SASP independently of other senescence-associated phenotypes. Here, we report that disruption of the interleukin-1 (IL-1) pathway completely uncouples the SASP from other senescence-associated phenotypes such as cell cycle exit. Transcriptome profiling of IL-1 receptor (IL-1R)-depleted senescent cells indicates that IL-1 controls the late arm of the senescence secretome, which consists of proinflammatory cytokines induced by NF-κB. Our data suggest that both IL-1α and IL-1β signal through IL-1R to upregulate the SASP in a cooperative manner. Finally, we show that IL-1α inactivation impairs tumor progression and immune cell infiltration without affecting cell cycle arrest in a mouse model of pancreatic cancer, highlighting the protumorigenic property of the IL-1-dependent SASP in this context. These findings provide novel insight into the therapeutic potential of targeting the IL-1 pathway in inflammatory cancers.
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Bellos I, Karageorgiou V, Kapnias D, Karamanli KE, Siristatidis C. The role of interleukins in preeclampsia: A comprehensive review. Am J Reprod Immunol 2018; 80:e13055. [PMID: 30265415 DOI: 10.1111/aji.13055] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/04/2018] [Accepted: 09/05/2018] [Indexed: 12/13/2022] Open
Abstract
Preeclampsia is a multi-system hypertensive disorder of pregnancy, with significant rates of maternal and neonatal morbidity. It represents a major cause of preterm birth, as definitive treatment demands fetal delivery. Although its pathophysiology is complicated, placental hypoxia and endothelial dysfunction constitute established pathogenetic steps of the disease. Inflammation is considered to be a crucial mediator of preeclampsia process, as an imbalance between TH 1, TH 2, and TH 17 immune responses is observed. The present review accumulates current knowledge about the contribution of interleukins in preeclampsia, summarizing the pathways through which each interleukin exerts its function in the disease. Also, the role of genetic polymorphisms is explored and the predictive efficacy of maternal serum interleukin levels is evaluated. Finally, recommendations about the safe interpretation of the outcomes, as well as guidance for future research, are provided.
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Affiliation(s)
- Ioannis Bellos
- National and Kapodistrian University of Athens, Athens, Greece
| | | | | | | | - Charalampos Siristatidis
- Assisted Reproduction Unit, Third Department of Obstetrics and Gynecology, "Attikon Hospital", Medical School, National and Kapodistrian University of Athens, Athens, Greece
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35
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Fern J, Schulman R. Modular DNA strand-displacement controllers for directing material expansion. Nat Commun 2018; 9:3766. [PMID: 30217991 PMCID: PMC6138645 DOI: 10.1038/s41467-018-06218-w] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 08/17/2018] [Indexed: 12/05/2022] Open
Abstract
Soft materials that swell or change shape in response to external stimuli show extensive promise in regenerative medicine, targeted therapeutics, and soft robotics. Generally, a stimulus for shape change must interact directly with the material, limiting the types of stimuli that may be used and necessitating high stimulus concentrations. Here, we show how DNA strand-displacement controllers within hydrogels can mediate size change by interpreting, amplifying, and integrating stimuli and releasing signals that direct the response. These controllers tune the time scale and degree of DNA-crosslinked hydrogel swelling and can actuate dramatic material size change in response to <100 nM of a specific biomolecular input. Controllers can also direct swelling in response to small molecules or perform logic. The integration of these stimuli-responsive materials with biomolecular circuits is a major step towards autonomous soft robotic systems in which sensing and actuation are implemented by biomolecular reaction networks. Materials which change shape in response to a trigger are of interest for soft robotics and targeted therapeutic delivery. Here, the authors report on the development of DNA-crosslinked hydrogels which can expand upon the detection of different biomolecular inputs mediated by DNA strand-displacement.
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Affiliation(s)
- Joshua Fern
- Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Rebecca Schulman
- Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA. .,Computer Science, Johns Hopkins University, Baltimore, MD, 21218, USA.
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36
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Tchessalova D, Posillico CK, Tronson NC. Neuroimmune Activation Drives Multiple Brain States. Front Syst Neurosci 2018; 12:39. [PMID: 30210310 PMCID: PMC6123349 DOI: 10.3389/fnsys.2018.00039] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 08/07/2018] [Indexed: 12/11/2022] Open
Abstract
Neuroimmune signaling is increasingly identified as a critical component of neuronal processes underlying memory, emotion and cognition. The interactions of microglia and astrocytes with neurons and synapses, and the individual cytokines and immune signaling molecules that mediate these interactions are a current focus of much research. Here, we discuss neuroimmune activation as a mechanism triggering different states that modulate cognitive and affective processes to allow for appropriate behavior during and after illness or injury. We propose that these states lie on a continuum from a naïve homeostatic baseline state in the absence of stimulation, to acute neuroimmune activity and chronic activation. Importantly, consequences of illness or injury including cognitive deficits and mood impairments can persist long after resolution of immune signaling. This suggests that neuroimmune activation also results in an enduring shift in the homeostatic baseline state with long lasting consequences for neural function and behavior. Such different states can be identified in a multidimensional way, using patterns of cytokine and glial activation, behavioral and cognitive changes, and epigenetic signatures. Identifying distinct neuroimmune states and their consequences for neural function will provide a framework for predicting vulnerability to disorders of memory, cognition and emotion both during and long after recovery from illness.
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Affiliation(s)
- Daria Tchessalova
- Neuroscience Graduate Program, School of Medicine, University of Michigan, Ann Arbor, MI, United States
| | | | - Natalie Celia Tronson
- Neuroscience Graduate Program, School of Medicine, University of Michigan, Ann Arbor, MI, United States.,Department of Psychology, University of Michigan, Ann Arbor, MI, United States
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Anti-infectious properties of the probiotic Saccharomyces cerevisiae CNCM I-3856 on enterotoxigenic E. coli (ETEC) strain H10407. Appl Microbiol Biotechnol 2018; 102:6175-6189. [DOI: 10.1007/s00253-018-9053-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 04/25/2018] [Accepted: 04/26/2018] [Indexed: 12/15/2022]
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38
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Chew CL, Conos SA, Unal B, Tergaonkar V. Noncoding RNAs: Master Regulators of Inflammatory Signaling. Trends Mol Med 2017; 24:66-84. [PMID: 29246760 DOI: 10.1016/j.molmed.2017.11.003] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/13/2017] [Accepted: 11/14/2017] [Indexed: 12/15/2022]
Abstract
Inflammatory signaling underlies many diseases, from arthritis to cancer. Our understanding of inflammation has thus far been limited to the world of proteins, because we are only just beginning to understand the role that noncoding RNAs (ncRNA) might play. It is now clear that ncRNA do not constitute transcriptional 'noise' but instead harbor physiological functions in controlling signaling pathways. In this review, we cover the newly discovered mechanisms and functions of ncRNAs in the regulation of inflammatory signaling. We also describe advances in experimental techniques allowing this field of research to take root. These findings have opened new avenues for putative therapeutic intervention in inflammatory diseases, which may be seen translated into clinical outcomes in the future.
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Affiliation(s)
- Chen Li Chew
- Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore 138673, Singapore; These authors contributed equally
| | - Stephanie Ana Conos
- Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore 138673, Singapore; These authors contributed equally
| | - Bilal Unal
- Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore 138673, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore 117597, Singapore
| | - Vinay Tergaonkar
- Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Singapore 138673, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore 117597, Singapore; Cancer Science Institute of Singapore, Singapore 117599, Singapore; Centre for Cancer Biology (University of South Australia and SA Pathology), Adelaide, SA 5000, Australia.
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39
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Bruges G, Crespo G, Salazar V, Deglesne PA, Schneider H, Cabrera-Fuentes H, Schmitz ML, Preissner K, Lopéz M. Thrombin selectively induces transcription of genes in human monocytes involved in inflammation and wound healing. Thromb Haemost 2017; 112:992-1001. [DOI: 10.1160/th14-01-0034] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 05/21/2014] [Indexed: 12/31/2022]
Abstract
SummaryThrombin is essential for blood coagulation but functions also as a mediator of cellular signalling. Gene expression microarray experiments in human monocytes revealed thrombin-induced upregulation of a limited subset of genes, which are almost exclusively involved in inflammation and wound healing. Among these, the expression of F3 gene encoding for tissue factor (TF) was enhanced indicating that this physiological initiator of coagulation cascade may create a feed-forward loop to enhance blood coagulation. Activation of protease-activated receptor type 1 (PAR1) was shown to play a main role in promoting TF expression. Moreover, thrombin induced phosphorylation of ERK1/2, an event that is required for expression of thrombin-regulated genes. Thrombin also increased the expression of TF at the protein level in monocytes as evidenced by Western blot and immunostaining. Furthermore, FXa generation induced by thrombin-stimulated monocytes was abolished by a TF blocking antibody and therefore it is entirely attributable to the expression of tissue factor. This cellular activity of thrombin provides a new molecular link between coagulation, inflammation and wound healing.
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40
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Li T, Wang W, Cheng Y, Han W. Method for quantitative detection of FAM19A4 by flow cytometry using latex beads as solid carrier. J Biosci Bioeng 2017; 125:359-364. [PMID: 29167066 DOI: 10.1016/j.jbiosc.2017.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 10/13/2017] [Accepted: 10/13/2017] [Indexed: 12/25/2022]
Abstract
FAM19A4 (family with sequence similarity 19 member A4; also TAFA4) is a classical secretory protein expressed mainly in the central nervous system and upregulated significantly in lipopolysaccharide (LPS)-stimulated monocytes and macrophages. It is a novel cytokine ligand of formyl peptide receptor 1 (FPR1), showing chemotactic activities on macrophages and promoting the phagocytosis capacity and the release of reactive oxygen species (ROS) by macrophages upon zymosan stimulation. Based on the same detection principle as enzyme-linked immunosorbent assay (ELISA), we developed a sandwich immunoassay for quantitative detection of FAM19A4 in biological fluids by flow cytometry, with latex beads as solid carrier. The method showed good performance in a wide range of 39-10,000 pg/mL and possessed excellent specificity, good precision, and favorable recovery in several different matrices. Native FAM19A4 secreted by phorblo 12-myristate 13-acetate (PMA) and LPS stimulated THP-1 cells could also be detected by this method. This method will be much helpful to FAM19A4 studies.
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Affiliation(s)
- Ting Li
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Beijing, 100191, China; Peking University Center for Human Disease Genomics, Beijing, 100191, China
| | - Wenyan Wang
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Beijing, 100191, China; Peking University Center for Human Disease Genomics, Beijing, 100191, China; Tsinghua University School of Medicine, Beijing 100084, China
| | - Yingying Cheng
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Beijing, 100191, China; Department of Laboratory Medicine, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu, 210029, China
| | - Wenling Han
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Beijing, 100191, China; Peking University Center for Human Disease Genomics, Beijing, 100191, China.
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41
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Ross AE, Pompano RR. Diffusion of cytokines in live lymph node tissue using microfluidic integrated optical imaging. Anal Chim Acta 2017; 1000:205-213. [PMID: 29289312 DOI: 10.1016/j.aca.2017.11.048] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 11/15/2017] [Accepted: 11/17/2017] [Indexed: 12/21/2022]
Abstract
Communication and drug efficacy in the immune system rely heavily on diffusion of proteins such as cytokines through the tissue matrix. Available methods to analyze diffusion in tissue require microinjection or saturating the tissue in protein, which may alter local transport properties due to damage or rapid cellular responses. Here, we developed a novel, user-friendly method - Microfluidic Integrated Optical Imaging (micro-IOI) - to quantify the effective diffusion coefficient of bioactive proteins in live tissue samples ex vivo. A microfluidic platform was used to deliver picograms of fluorescently labelled cytokines to microscale regions within slices of murine lymph node, and diffusion was monitored by widefield fluorescence microscopy. Micro-IOI was validated against theory and existing methods. Free diffusion coefficients were within 8% and 24% of Stokes-Einstein predictions for dextrans and cytokines, respectively. Furthermore, diffusion coefficients for dextrans and proteins in a model matrix were within 1.5-fold of reported results from fluorescence recovery after photobleaching (FRAP). We used micro-IOI to quantify the effective diffusion of three cytokines from different structural classes and two different expression systems - tumor necrosis factor alpha (TNF-α), interferon gamma (IFN-γ), and interleukin-2 (IL-2), from human and mouse - through live lymph node tissue. This is the first method to directly measure cytokine transport in live tissue slices, and in the future, it should promote a deeper understanding of the dynamics of cell-cell communication and enable targeted immunotherapy design.
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Affiliation(s)
- A E Ross
- Department of Chemistry, University of Virginia, McCormick Rd., PO Box 400319, Charlottesville, VA 22904, USA
| | - R R Pompano
- Department of Chemistry, University of Virginia, McCormick Rd., PO Box 400319, Charlottesville, VA 22904, USA.
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42
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Response of human periodontal ligament stem cells to IFN-γ and TLR-agonists. Sci Rep 2017; 7:12856. [PMID: 28993635 PMCID: PMC5634407 DOI: 10.1038/s41598-017-12480-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 09/08/2017] [Indexed: 02/06/2023] Open
Abstract
Periodontal ligament stem cells similarly to the mesenchymal stem cells of other tissues possess immunomodulatory properties, which are regulated by different cytokines, particularly by interferon-γ (IFN-γ). In contrast, less information is provided about the effect of toll-like receptors ligand on immunomodulatory properties of these cells. In the present study we investigated the response of human periodontal ligament stem cells (hPDLSCs) in response to simultaneous stimulation with IFN-γ and toll-like receptor (TLR) agonists. The resulting expression of indoleamine-2,3-dioxygenase-1 (IDO-1), interleukin (IL)-6, IL-8 and monocyte chemotactic protein 1 (MCP-1) was investigated. The expression of IDO-1 was upregulated by IFN-γ in both gene and protein levels. TLR2 agonists Pam3CSK4 induced gene expression of IDO-1, but had no effect on protein expression. IFN-γ induced IDO-1 protein expression was further enhanced by Pam3CSK4. TLR-4 agonist E. coli LPS has no significant effect on neither basal nor IFN-γ induced IDO-1 protein expression. The production of IL-6, IL-8, and MCP-1 was induced by TLR agonists. Neither basal nor TLR agonists induced production of these proteins was affected by IFN-γ. Our data shows potential interaction between IFN-γ and TLR2 responses in hPDLSCs, which might be involved in regulation of immune response in inflammatory diseases, and particularly periodontitis.
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43
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Pompano RR, Chiang AH, Kastrup CJ, Ismagilov RF. Conceptual and Experimental Tools to Understand Spatial Effects and Transport Phenomena in Nonlinear Biochemical Networks Illustrated with Patchy Switching. Annu Rev Biochem 2017; 86:333-356. [PMID: 28654324 PMCID: PMC10852032 DOI: 10.1146/annurev-biochem-060815-014207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Many biochemical systems are spatially heterogeneous and exhibit nonlinear behaviors, such as state switching in response to small changes in the local concentration of diffusible molecules. Systems as varied as blood clotting, intracellular calcium signaling, and tissue inflammation are all heavily influenced by the balance of rates of reaction and mass transport phenomena including flow and diffusion. Transport of signaling molecules is also affected by geometry and chemoselective confinement via matrix binding. In this review, we use a phenomenon referred to as patchy switching to illustrate the interplay of nonlinearities, transport phenomena, and spatial effects. Patchy switching describes a change in the state of a network when the local concentration of a diffusible molecule surpasses a critical threshold. Using patchy switching as an example, we describe conceptual tools from nonlinear dynamics and chemical engineering that make testable predictions and provide a unifying description of the myriad possible experimental observations. We describe experimental microfluidic and biochemical tools emerging to test conceptual predictions by controlling transport phenomena and spatial distribution of diffusible signals, and we highlight the unmet need for in vivo tools.
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Affiliation(s)
- Rebecca R Pompano
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904;
| | - Andrew H Chiang
- Department of Chemistry and Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637;
| | - Christian J Kastrup
- Michael Smith Laboratories and Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada;
| | - Rustem F Ismagilov
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125;
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44
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Börchers S, Babaei R, Klimpel C, Duque Escobar J, Schröder S, Blume R, Malik MNH, Oetjen E. TNFα-induced DLK activation contributes to apoptosis in the beta-cell line HIT. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:813-825. [DOI: 10.1007/s00210-017-1385-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/17/2017] [Indexed: 12/20/2022]
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45
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Anderson WD, Vadigepalli R. Modeling cytokine regulatory network dynamics driving neuroinflammation in central nervous system disorders. DRUG DISCOVERY TODAY. DISEASE MODELS 2017; 19:59-67. [PMID: 28947907 PMCID: PMC5609716 DOI: 10.1016/j.ddmod.2017.01.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A central goal of pharmacological efforts to treat central nervous system (CNS) diseases is to develop systemic therapeutics that can restore CNS homeostasis. Achieving this goal requires a fundamental understanding of CNS function within the organismal context so as to leverage the mechanistic insights on the molecular basis of cellular and tissue functions towards novel drug target identification. The immune system constitutes a key link between the periphery and CNS, and many neurological disorders and neurodegenerative diseases are characterized by immune dysfunction. We review the salient opportunities for applying computational models to CNS disease research, and summarize relevant approaches from studies of immune function and neuroinflammation. While the accurate prediction of disease-related phenomena is often considered the central goal of modeling studies, we highlight the utility of computational modeling applications beyond making predictions, particularly for drawing counterintuitive insights from model-based analysis of multi-parametric and time series data sets.
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Affiliation(s)
- Warren D. Anderson
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, USA
| | - Rajanikanth Vadigepalli
- Daniel Baugh Institute for Functional Genomics/Computational Biology, Department of Pathology, Anatomy and Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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46
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The potential curative effect of rebamipide in hepatic ischemia/reperfusion injury. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:691-700. [DOI: 10.1007/s00210-017-1370-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/21/2017] [Indexed: 01/11/2023]
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47
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Ryu B, Nam H, Oh BR, Song Y, Chen P, Park Y, Wan W, Kurabayashi K, Liang X. Cyclewise Operation of Printed MoS 2 Transistor Biosensors for Rapid Biomolecule Quantification at Femtomolar Levels. ACS Sens 2017; 2:274-281. [PMID: 28723149 DOI: 10.1021/acssensors.6b00795] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Field-effect transistors made from MoS2 and other emerging layered semiconductors have been demonstrated to be able to serve as ultrasensitive biosensors. However, such nanoelectronic sensors still suffer seriously from a series of challenges associated with the poor compatibility between electronic structures and liquid analytes. These challenges hinder the practical biosensing applications that demand rapid, low-noise, highly specific biomolecule quantification at femtomolar levels. To address such challenges, we study a cyclewise process for operating MoS2 transistor biosensors, in which a series of reagent fluids are delivered to the sensor in a time-sequenced manner and periodically set the sensor into four assay-cycle stages, including incubation, flushing, drying, and electrical measurement. Running multiple cycles of such an assay can acquire a time-dependent sensor response signal quantifying the reaction kinetics of analyte-receptor binding. This cyclewise detection approach can avoid the liquid-solution-induced electrochemical damage, screening, and nonspecific adsorption to the sensor and therefore improves the transistor sensor's durability, sensitivity, specificity, and signal-to-noise ratio. These advantages in combination with the inherent high sensitivity of MoS2 biosensors allow for rapid biomolecule quantification at femtomolar levels. We have demonstrated the cyclewise quantification of Interleukin-1β in pure and complex solutions (e.g., serum and saliva) with a detection limit of ∼1 fM and a total detection time ∼23 min. This work leverages the superior properties of layered semiconductors for biosensing applications and advances the techniques toward realizing fast real-time immunoassay for low-abundance biomolecule detection.
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Affiliation(s)
- Byunghoon Ryu
- Mechanical
Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Hongsuk Nam
- Mechanical
Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Bo-Ram Oh
- Mechanical
Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yujing Song
- Mechanical
Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Pengyu Chen
- Mechanical
Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Younggeun Park
- Mechanical
Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Wenjie Wan
- University
of Michigan-Shanghai Jiao Tong University Joint Institute and Department
of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Katsuo Kurabayashi
- Mechanical
Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Xiaogan Liang
- Mechanical
Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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48
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Frizzell H, Park J, Comandante Lou N, Woodrow KA. Role of heterogeneous cell population on modulation of dendritic cell phenotype and activation of CD8 T cells for use in cell-based immunotherapies. Cell Immunol 2017; 311:54-62. [PMID: 27793335 PMCID: PMC5283719 DOI: 10.1016/j.cellimm.2016.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 10/11/2016] [Accepted: 10/11/2016] [Indexed: 02/05/2023]
Abstract
Dendritic cell (DC)-based immunotherapies have much utility in their ability to prime antigen-specific adaptive immune responses. However, there does not yet exist a consensus standard to how DCs should be primed. In this study, we aimed to determine the role of heterogeneous co-cultures, composed of both CD11c+ (DCs) and CD11c- cells, in combination with monophosphoryl lipid A (MPLA) stimulation on DC phenotype and function. Upon DC priming in different co-culture ratios, we observed reduced expression of MHCII and CD86 and increased antigen uptake among CD11c+ cells in a CD11c- dependent manner. DCs from all culture conditions were induced to mature by MPLA treatment, as determined by secretion of pro-inflammatory cytokines IL-12 and TNF-α. Antigen-specific stimulation of CD4+ T cells was not modulated by co-culture composition, in terms of proliferation nor levels of IFN-γ. However, the presence of CD11c- cells enhanced cross-presentation to CD8+ T cells compared to purified CD11c+ cells, resulting in increased cell proliferation along with higher IFN-γ production. These findings demonstrate the impact of cell populations present during DC priming, and point to the use of heterogeneous cultures of DCs and innate immune cells to enhance cell-mediated immunity.
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Affiliation(s)
- Hannah Frizzell
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA 98105, USA
| | - Jaehyung Park
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA 98105, USA
| | - Natacha Comandante Lou
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA 98105, USA
| | - Kim A Woodrow
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA 98105, USA.
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49
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Alvarado R, To J, Lund ME, Pinar A, Mansell A, Robinson MW, O'Brien BA, Dalton JP, Donnelly S. The immune modulatory peptide FhHDM-1 secreted by the helminth Fasciola hepatica prevents NLRP3 inflammasome activation by inhibiting endolysosomal acidification in macrophages. FASEB J 2016; 31:85-95. [PMID: 27682204 DOI: 10.1096/fj.201500093r] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 09/16/2016] [Indexed: 12/31/2022]
Abstract
The NLRP3 inflammasome is a multimeric protein complex that controls the production of IL-1β, a cytokine that influences the development of both innate and adaptive immune responses. Helminth parasites secrete molecules that interact with innate immune cells, modulating their activity to ultimately determine the phenotype of differentiated T cells, thus creating an immune environment that is conducive to sustaining chronic infection. We show that one of these molecules, FhHDM-1, a cathelicidin-like peptide secreted by the helminth parasite, Fasciola hepatica, inhibits the activation of the NLRP3 inflammasome resulting in reduced secretion of IL-1β by macrophages. FhHDM-1 had no effect on the synthesis of pro-IL-1β. Rather, the inhibitory effect was associated with the capacity of the peptide to prevent acidification of the endolysosome. The activation of cathepsin B protease by lysosomal destabilization was prevented in FhHDM-1-treated macrophages. By contrast, peptide derivatives of FhHDM-1 that did not alter the lysosomal pH did not inhibit secretion of IL-1β. We propose a novel immune modulatory strategy used by F. hepatica, whereby secretion of the FhHDM-1 peptide impairs the activation of NLRP3 by lysosomal cathepsin B protease, which prevents the downstream production of IL-1β and the development of protective T helper 1 type immune responses that are detrimental to parasite survival.-Alvarado, R., To, J., Lund, M. E., Pinar, A., Mansell, A., Robinson, M. W., O'Brien, B. A., Dalton, J. P., Donnelly, S. The immune modulatory peptide FhHDM-1 secreted by the helminth Fasciola hepatica prevents NLRP3 inflammasome activation by inhibiting endolysosomal acidification in macrophages.
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Affiliation(s)
- Raquel Alvarado
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Joyce To
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Maria E Lund
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Anita Pinar
- Monash Institute of Medical Research, Monash University, Clayton, Victoria, Australia; and
| | - Ashley Mansell
- Monash Institute of Medical Research, Monash University, Clayton, Victoria, Australia; and
| | - Mark W Robinson
- School of Biological Sciences, Queen's University, Belfast, Northern Ireland
| | - Bronwyn A O'Brien
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - John P Dalton
- School of Biological Sciences, Queen's University, Belfast, Northern Ireland
| | - Sheila Donnelly
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia;
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Yi Q, Wang YK, Feng J, Wei YH, Wang L. Identification of two candidate innate immune genes by transcriptional profiling and RNA interference in mouse mammary gland epithelial cells stimulated with lipopolysaccharide. Immunopharmacol Immunotoxicol 2016; 38:423-431. [PMID: 27572054 DOI: 10.1080/08923973.2016.1222618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Mammary epithelial cells (MECs) play an important role in immune responses and inflammatory diseases such as mastitis, which is mainly attributed to the activation of Toll-like receptors and the release of cytokines. However, the overall change of gene expression and biological pathways of MECs to microbial factors stimulation remains unknown. Here, we analyzed the gene expression profile in mouse MECs treated with lipopolysaccharide (LPS) for 24 h. Microarray analysis revealed that about 1548 genes differentially expressed, these genes mainly involved in 346 gene ontology terms and 128 molecular pathways, and particularly, some innate immune-associated pathways were significant. By analyzing data for pathway relation network, we prioritized differentially expressed genes with respect to LPS. The importance of changes, indicating that RNA interference-mediated inhibition of two genes identified in this analysis, transforming growth factor beta 1 (Tgf-β1) and platelet-derived growth factor B (Pdgfb), reduced interleukin (IL)-6 and tumor necrosis factor α production respectively, in gene expression was verified. These findings delineate mouse MECs gene response patterns induced by LPS and identify Tgf-β1 and Pdgfb that have been closely related to innate immunity.
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Affiliation(s)
- Qiong Yi
- a Biochemical Engineering Center of Guizhou Province , Guizhou University , Guiyang , China
| | - Yu-Kun Wang
- a Biochemical Engineering Center of Guizhou Province , Guizhou University , Guiyang , China.,b Department of Veterinary Medicine, College of Animal Science , Guizhou University , Guiyang , China
| | - Jiang Feng
- a Biochemical Engineering Center of Guizhou Province , Guizhou University , Guiyang , China.,b Department of Veterinary Medicine, College of Animal Science , Guizhou University , Guiyang , China
| | - Yu-Hao Wei
- a Biochemical Engineering Center of Guizhou Province , Guizhou University , Guiyang , China.,b Department of Veterinary Medicine, College of Animal Science , Guizhou University , Guiyang , China
| | - Lu Wang
- a Biochemical Engineering Center of Guizhou Province , Guizhou University , Guiyang , China
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