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Ishida E, Furusho H, Renn TY, Shiba F, Chang HM, Oue H, Terayama R, Ago Y, Tsuga K, Miyauchi M. Mouse maternal odontogenic infection with Porphyromonas gingivalis induces cognitive decline in offspring. Front Pediatr 2023; 11:1203894. [PMID: 37635786 PMCID: PMC10450928 DOI: 10.3389/fped.2023.1203894] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/24/2023] [Indexed: 08/29/2023] Open
Abstract
Introduction Porphyromonas gingivalis (P. gingivalis), a major periodontal pathogen, causes intrauterine infection/inflammation. Offspring exposed to intrauterine infection/inflammation have an increased risk of neurological disorders, regardless of gestational age. However, the relationship between maternal periodontitis and offspring functional/histological changes in the brain has not yet been elucidated. Methods In this study, we used a gestational mouse model to investigate the effects of maternal odontogenic infection of P. gingivalis on offspring behavior and brain tissue. Results The step-through passive avoidance test showed that the latency of the acquisition trial was significantly shorter in the P. gingivalis group (p < 0.05), but no difference in spontaneous motor/exploratory parameters by open-field test. P. gingivalis was diffusely distributed throughout the brain, especially in the hippocampus. In the hippocampus and amygdala, the numbers of neuron cells and cyclic adenosine monophosphate response element binding protein-positive cells were significantly reduced (p < 0.05), whereas the number of ionized calcium binding adapter protein 1-positive microglia was significantly increased (p < 0.05). In the hippocampus, the number of glial fibrillary acidic protein-positive astrocytes was also significantly increased (p < 0.05). Discussion The offspring of P. gingivalis-infected mothers have reduced cognitive function. Neurodegeneration/neuroinflammation in the hippocampus and amygdala may be caused by P. gingivalis infection, which is maternally transmitted. The importance of eliminating maternal P. gingivalis-odontogenic infection before or during gestation in maintenance healthy brain function in offspring should be addressed in near future.
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Affiliation(s)
- Eri Ishida
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hisako Furusho
- Department of Oral and Maxillofacial Pathobiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Ting-Yi Renn
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Fumie Shiba
- Department of Oral and Maxillofacial Pathobiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hung-Ming Chang
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hiroshi Oue
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Ryuji Terayama
- Department of Maxillofacial Anatomy and Neuroscience, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yukio Ago
- Department of Cellular and Molecular Pharmacology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuhiro Tsuga
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Mutsumi Miyauchi
- Department of Oral and Maxillofacial Pathobiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Teraoka Y, Sugimoto J, Konishi H, Miyoshi H, Furusho H, Miyauchi M, Kajioka S, Koh I, Kudo Y. Progesterone Suppresses Uterine Contraction by Reducing Odontogenic Porphyromonas gingivalis Induced Chronic Inflammation in Mice. Biomolecules 2022; 12:biom12081029. [PMID: 35892338 PMCID: PMC9332501 DOI: 10.3390/biom12081029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/22/2022] [Accepted: 07/22/2022] [Indexed: 12/10/2022] Open
Abstract
Preterm birth is one of the most significant obstetric complications. Inflammation reportedly promotes uterine contraction and weakening of the fetal membrane, which induces preterm birth. Previous studies using animal models of lipopolysaccharide-induced acute inflammation have shown that progesterone (P4) promotes uterine quiescence. However, this effect is not fully understood in chronic inflammation. This study aimed to investigate the effects of P4 on uterine contractility and inflammation of the fetal membrane in mice infected with Porphyromonas gingivalis (P.g.), a major periodontal pathogen as a model of preterm birth caused by chronic inflammation. Mice were injected with 1 mg of P4 from day 15.5 to 17.5. P4 prolonged the mean gestation period of P.g mice from 18.3 to 20.4 days, and no reduction in the gestation period was observed. P4 treatment suppressed spontaneous uterine contractility and decreased oxytocin sensitivity. In addition, the expression of inflammatory cytokines in the fetal membrane was significantly reduced. Thus, P4 prevented preterm birth by suppressing enhanced uterine contractility induced by chronic inflammation in this model. This result describes the effects of P4 in a chronic inflammation model, which may lead to a better understanding of the efficacy of P4 in preventing preterm birth in humans.
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Affiliation(s)
- Yuko Teraoka
- Department of Obstetrics and Gynecology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (J.S.); (I.K.); (Y.K.)
- Correspondence:
| | - Jun Sugimoto
- Department of Obstetrics and Gynecology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (J.S.); (I.K.); (Y.K.)
| | - Haruhisa Konishi
- Department of Obstetrics and Gynecology, Miyoshi Central Hospital, Miyoshi 728-8502, Japan;
| | - Hiroshi Miyoshi
- Department of Obstetrics and Gynecology, Hiroshima Prefectural Hospital, Hiroshima 734-0004, Japan;
| | - Hisako Furusho
- Department of Oral and Maxillofacial Pathobiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (H.F.); (M.M.)
| | - Mutsumi Miyauchi
- Department of Oral and Maxillofacial Pathobiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (H.F.); (M.M.)
| | - Shunichi Kajioka
- Department of Pharmaceutical Sciences, School of Pharmacy at Fukuoka, International University of Health Welfare, Fukuoka 812-8582, Japan;
| | - Iemasa Koh
- Department of Obstetrics and Gynecology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (J.S.); (I.K.); (Y.K.)
| | - Yoshiki Kudo
- Department of Obstetrics and Gynecology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (J.S.); (I.K.); (Y.K.)
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Lithgow KV, Buchholz VCH, Ku E, Konschuh S, D'Aubeterre A, Sycuro LK. Protease activities of vaginal Porphyromonas species disrupt coagulation and extracellular matrix in the cervicovaginal niche. NPJ Biofilms Microbiomes 2022; 8:8. [PMID: 35190575 PMCID: PMC8861167 DOI: 10.1038/s41522-022-00270-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 01/14/2022] [Indexed: 12/14/2022] Open
Abstract
Porphyromonas asaccharolytica and Porphyromonas uenonis are common inhabitants of the vaginal microbiome, but their presence has been linked to adverse health outcomes for women, including bacterial vaginosis and preterm birth. However, little is known about the pathogenesis mechanisms of these bacteria. The related oral opportunistic pathogen, Porphyromonas gingivalis, is comparatively well-studied and known to secrete numerous extracellular matrix-targeting proteases. Among these are the gingipain family of cysteine proteases that drive periodontal disease progression and hematogenic transmission to the placenta. In this study, we demonstrate that vaginal Porphyromonas species secrete broad-acting proteases capable of freely diffusing within the cervicovaginal niche. These proteases degrade collagens that are enriched within the cervix (type I) and chorioamniotic membranes (type IV), as well as fibrinogen, which inhibits clot formation. Bioinformatic queries confirmed the absence of gingipain orthologs and identified five serine, cysteine, and metalloprotease candidates in each species. Inhibition assays revealed that each species' proteolytic activity can be partially attributed to a secreted metalloprotease with broad substrate specificity that is distantly related to the P. gingivalis endopeptidase PepO. This characterization of virulence activities in vaginal Porphyromonas species highlights their potential to alter the homeostasis of reproductive tissues and harm human pregnancy through clotting disruption, fetal membrane weakening, and premature cervical remodeling.
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Affiliation(s)
- Karen V Lithgow
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Vienna C H Buchholz
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
- Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Emily Ku
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Shaelen Konschuh
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Ana D'Aubeterre
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada
| | - Laura K Sycuro
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada.
- Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada.
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.
- International Microbiome Centre, University of Calgary, Calgary, AB, Canada.
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Mei Y, Ran Y, Liu Z, Zhou Y, He J, Yin N, Qi H. The Role of IL-27 in the Systemic Inflammatory Response That Accompanies Preterm Labour. Inflammation 2021; 45:876-890. [PMID: 34773188 DOI: 10.1007/s10753-021-01592-y] [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: 08/23/2021] [Revised: 10/27/2021] [Accepted: 10/27/2021] [Indexed: 11/30/2022]
Abstract
This study aimed to investigate whether interleukin-27 (IL-27) activates maternal peripheral blood mononuclear cells (PBMCs) and induces inflammatory responses in amniotic epithelial cells in preterm labour (PL). The expression of IL-27p28, EBI3 and IL-27Rα was compared in maternal PBMCs of the PL, term labour (TL) and term not in labour (TNL) groups. The relationship between IL-27 and molecules associated with PBMC activation was investigated using bioinformatic and quantitative reverse transcription polymerase chain reaction (qRT-PCR) analyses. We investigated the inflammatory effects of IL-27 in PBMCs and its underlying mechanisms in vitro. In addition, we treated amniotic epithelial cells (WISH cells) with a PBMC-conditioned medium to identify the inflammatory effects of IL-27-treated PBMCs in amniotic epithelial cells. The expression of IL-27p28 and IL-27Rα in PBMCs of the PL group was higher than that in the TL/TNL groups. Bioinformatic analysis revealed that IL-27 was positively correlated with IFNG, IL6, IL1β, CXCL10 and ICAM1 in the whole blood samples of pregnant women in the PL group, which was confirmed using qRT-PCR. Furthermore, rhIL-27 promoted the expression of Th1 cell-related molecules (T-bet, IFN-γ and ICAM-1) and proinflammatory cytokines (IL-6 and IL-1β) in PBMCs in vitro, which was partially mediated by the JAK2/STAT1 pathway. In addition, it enhanced the expression of IL-27p28, EBI3 and IL-27Rα in PBMCs. Moreover, the expression of IL-6, IL-1β and TNF-α in WISH cells was significantly increased by the conditional medium derived from IL-27-treated PBMCs. IL-27 upregulated the expression of Th1 cell-related molecules and proinflammatory cytokines in PBMCs partially mediated by the JAK2/STAT1 pathway. Inflammatory responses were induced in WISH cells by a conditional medium derived from IL-27-treated PBMCs. Therefore, IL-27 may contribute to PL by promoting inflammation in maternal PBMCs and amniotic epithelial cells.
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Affiliation(s)
- Youwen Mei
- International Collaborative Jointed Laboratory of Maternal and Fetal Medicine, Ministry of Education, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing Medical University, Chongqing, 400016, China.,Department of Obstetrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yuxin Ran
- International Collaborative Jointed Laboratory of Maternal and Fetal Medicine, Ministry of Education, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing Medical University, Chongqing, 400016, China.,Department of Obstetrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zheng Liu
- International Collaborative Jointed Laboratory of Maternal and Fetal Medicine, Ministry of Education, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing Medical University, Chongqing, 400016, China.,Department of Obstetrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yunqian Zhou
- International Collaborative Jointed Laboratory of Maternal and Fetal Medicine, Ministry of Education, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing Medical University, Chongqing, 400016, China.,Department of Obstetrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Jie He
- International Collaborative Jointed Laboratory of Maternal and Fetal Medicine, Ministry of Education, Chongqing Medical University, Chongqing, 400016, China.,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing Medical University, Chongqing, 400016, China.,Department of Obstetrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Nanlin Yin
- International Collaborative Jointed Laboratory of Maternal and Fetal Medicine, Ministry of Education, Chongqing Medical University, Chongqing, 400016, China. .,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing Medical University, Chongqing, 400016, China. .,Department of Obstetrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
| | - Hongbo Qi
- International Collaborative Jointed Laboratory of Maternal and Fetal Medicine, Ministry of Education, Chongqing Medical University, Chongqing, 400016, China. .,State Key Laboratory of Maternal and Fetal Medicine of Chongqing Municipality, Chongqing Medical University, Chongqing, 400016, China. .,Department of Obstetrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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Konishi H, Urabe S, Teraoka Y, Morishita Y, Koh I, Sugimoto J, Sakamoto S, Miyoshi H, Miyauchi M, Takata T, Kajioka S, Kudo Y. Porphyromonas gingivalis, a cause of preterm birth in mice, induces an inflammatory response in human amnion mesenchymal cells but not epithelial cells. Placenta 2020; 99:21-26. [PMID: 32738645 DOI: 10.1016/j.placenta.2020.07.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 07/12/2020] [Accepted: 07/16/2020] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Inflammation and infection, including dental infectious diseases, are factors that can induce preterm birth. We previously reported that mice with dental Porphyromonas gingivalis infection could be used as a model of preterm birth. In this model, cyclooxygenase (COX)-2 and interleukin (IL)-1β levels are increased, and P. gingivalis colonies are observed in the fetal membrane. However, the mechanism underlying fetal membrane inflammation remains unknown. Therefore, we investigated the immune responses of human amnion to P. gingivalis in vitro. METHODS Epithelial and mesenchymal cells were isolated from human amnion using trypsin and collagenase, and primary cell cultures were obtained. Confluent cells were stimulated with P. gingivalis lipopolysaccharide (P.g-LPS) or P. gingivalis. mRNA expressions of IL-1β, IL-8, IL-6 and COX-2, protein expressions of nuclear factor (NF)-κB pathway components and culture medium levels of prostaglandin E2 were evaluated. RESULTS Following stimulation with 1 μg/mL P.g-LPS, the mRNA expression levels of IL-1β, IL-8, IL-6 and COX-2 in mesenchymal cells were increased 5.9-, 3.3-, 4.2- and 3.1-fold, respectively. Similarly, the expression levels of IL-1β, IL-8, IL-6 and COX-2 in mesenchymal cells were increased by 7.6-, 8.2-, 13.4- and 9.3-fold, respectively, after coculture with P. gingivalis. Additionally, stimulation with P.g-LPS or P. gingivalis resulted in the activation of NF-κB signaling and increased production of IL-1β and prostaglandin E2. In contrast, no significant changes were observed in epithelial cells. DISCUSSION Our findings suggest that mesenchymal cells might mediate the inflammatory responses to P. gingivalis and P.g-LPS, thereby producing inflammation that contributes to the induction of preterm birth.
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Affiliation(s)
- Haruhisa Konishi
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Satoshi Urabe
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Yuko Teraoka
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Yoshito Morishita
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Iemasa Koh
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Jun Sugimoto
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Shinnichi Sakamoto
- Department of Oral and Maxillofacial Pathobiology, Basic Life Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Hiroshi Miyoshi
- Department of Obstetrics and Gynecology, Hiroshima Prefectural Hospital, Hiroshima, Japan.
| | - Mutsumi Miyauchi
- Department of Oral and Maxillofacial Pathobiology, Basic Life Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Takashi Takata
- Department of Oral and Maxillofacial Pathobiology, Basic Life Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan; Tokuyama University, Yamaguchi, Japan.
| | - Shunichi Kajioka
- Department of Clinical Pharmacology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Yoshiki Kudo
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan.
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Blois SM, Verlohren S, Wu G, Clark G, Dell A, Haslam SM, Barrientos G. Role of galectin-glycan circuits in reproduction: from healthy pregnancy to preterm birth (PTB). Semin Immunopathol 2020; 42:469-486. [PMID: 32601855 PMCID: PMC7508936 DOI: 10.1007/s00281-020-00801-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/20/2020] [Indexed: 02/08/2023]
Abstract
Growing evidence suggests that galectins, an evolutionarily conserved family of glycan-binding proteins, fulfill key roles in pregnancy including blastocyst implantation, maternal-fetal immune tolerance, placental development, and maternal vascular expansion, thereby establishing a healthy environment for the growing fetus. In this review, we comprehensively present the function of galectins in shaping cellular circuits that characterize a healthy pregnancy. We describe the current understanding of galectins in term and preterm labor and discuss how the galectin-glycan circuits contribute to key immunological pathways sustaining maternal tolerance and preventing microbial infections. A deeper understanding of the glycoimmune pathways regulating early events in preterm birth could offer the broader translational potential for the treatment of this devastating syndrome.
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Affiliation(s)
- Sandra M Blois
- Experimental and Clinical Research Center, A Cooperation Between the Max Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, AG GlycoImmunology, Berlin, Germany. .,Institute for Medical Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany. .,Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Stefan Verlohren
- Department of Obstetrics, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Gang Wu
- Department of Life Sciences, Imperial College London, London, UK
| | - Gary Clark
- Department of Obstetrics, Gynaecology and Women's Health, University of Missouri, Columbia, Missouri, USA
| | - Anne Dell
- Department of Life Sciences, Imperial College London, London, UK
| | - Stuart M Haslam
- Department of Life Sciences, Imperial College London, London, UK
| | - Gabriela Barrientos
- Laboratory of Experimental Medicine, Hospital Alemán, School of Medicine, University of Buenos Aires, CONICET, Buenos Aires, Argentina
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