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Yamada E, Martin CG, Moreno-Huizar N, Fouquier J, Neff CP, Coleman SL, Schneider JM, Huber J, Nusbacher NM, McCarter M, Campbell TB, Lozupone CA, Palmer BE. Intestinal microbial communities and Holdemanella isolated from HIV+/- men who have sex with men increase frequencies of lamina propria CCR5 + CD4 + T cells. Gut Microbes 2022; 13:1997292. [PMID: 34818131 PMCID: PMC8632320 DOI: 10.1080/19490976.2021.1997292] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Men who have sex with men (MSM), regardless of HIV infection status, have an intestinal microbiome that is compositionally distinct from men who have sex with women (MSW) and women. We recently showed HIV-negative MSM have elevated levels of intestinal CD4+ T cells expressing CCR5, a critical co-receptor for HIV. Whether elevated expression of CCR5 is driven by the altered gut microbiome composition in MSM has not been explored. Here we used in vitro stimulation of gut Lamina Propria Mononuclear Cells (LPMCs) with whole intact microbial cells isolated from stool to demonstrate that fecal bacterial communities (FBCs) from HIV-positive/negative MSM induced higher frequencies of CCR5+ CD4+ T cells compared to FBCs from HIV-negative MSW and women. To identify potential microbial drivers, we related the frequency of CCR5+ CD4+ T cells to the abundance of individual microbial taxa in rectal biopsy of HIV-positive/negative MSM and controls, and Holdemanella biformis was strongly associated with increased frequency of CCR5+ CD4+ T cells. We used in vitro stimulation of gut LPMCs with the type strain of H. biformis, a second strain of H.biformis and an isolate of the closely related Holdemanella porci , cultured from either a HIV-positive or a HIV-negative MSM stool. H. porci elevated the frequency of both CCR5+ CD4+ T cells and the ratio of TNF-α/IL-10 Genomic comparisons of the 3 Holdemanella isolates revealed unique cell wall and capsular components, which may be responsible for their differences in immunogenicity. These findings describe a novel mechanism potentially linking intestinal dysbiosis in MSM to HIV transmission and mucosal pathogenesis.
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Affiliation(s)
- Eiko Yamada
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | - Casey G. Martin
- Division of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | - Nancy Moreno-Huizar
- Division of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | - Jennifer Fouquier
- Division of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | - C. Preston Neff
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | | | - Jennifer M. Schneider
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | - Jonathan Huber
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | - Nichole M. Nusbacher
- Division of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | - Martin McCarter
- Department of Surgery, University of Colorado Anschutz, Aurora, Colorado, USA
| | - Thomas B. Campbell
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | - Catherine A. Lozupone
- Division of Biomedical Informatics and Personalized Medicine, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
| | - Brent E. Palmer
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA,CONTACT Brent E. Palmer Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz, Aurora, Colorado, USA
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Biomechanical and functional properties of trophoblast cells exposed to Group B Streptococcus in vitro and the beneficial effects of uvaol treatment. Biochim Biophys Acta Gen Subj 2019; 1863:1417-1428. [PMID: 31254547 DOI: 10.1016/j.bbagen.2019.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 11/23/2022]
Abstract
BACKGROUND Group B streptococcus (GBS) is the main bacteria that infects pregnant women and can cause abortion and chorioamnionitis. The impact of GBS effects on human trophoblast cells remains largely elusive, and actions toward anti-inflammatory strategies in pregnancy are needed. A potent anti-inflammatory molecule, uvaol is a triterpene from olive oil and its functions in trophoblasts are unknown. We aimed to analyze biomechanical and functional effects of inactivated GBS in trophoblast cells, with the addition of uvaol to test potential benefits. METHODS HTR-8/SVneo cells were treated with uvaol and incubated with inactivated GBS. Cell viability and death were analyzed. Cellular elasticity and topography were accessed by atomic force microscopy. Nitrite production was evaluated by Griess reaction. Nuclear translocation of NFkB p65 was detected by immunofluorescence and Th1/Th2 cytokines by bead-based multiplex assay. RESULTS GBS at 108 CFU increased cell death, which was partially prevented by uvaol. Cell stiffness, cytoskeleton organization and morphology were changed by GBS, and uvaol partially restored these alterations. Nuclear translocation of NFkB p65 began 15 min after GBS incubation and uvaol inhibited this process. GBS decreased IL-4 secretion and increased IL-1β, IFN-γ and IL-2, whereas uvaol reverted this. CONCLUSIONS The increased inflammation and cell death caused by GBS correlated with biomechanical and cytoskeleton changes found in trophoblast cells, while uvaol was effective its protective role. GENERAL SIGNIFICANCE Uvaol is a natural anti-inflammatory product efficient against GBS-induced inflammation and it has potential to be acquired through diet in order to prevent GBS deleterious effects in pregnancy.
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Moore MC, Van De Walle A, Chang J, Juran C, McFetridge PS. Human Perinatal-Derived Biomaterials. Adv Healthc Mater 2017; 6:10.1002/adhm.201700345. [PMID: 28783879 PMCID: PMC5733692 DOI: 10.1002/adhm.201700345] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/30/2017] [Indexed: 12/30/2022]
Abstract
Human perinatal tissues have been used for over a century as allogeneic biomaterials. Due to their advantageous properties including angiogenecity, anti-inflammation, anti-microbial, and immune privilege, these tissues are being utilized for novel applications across wide-ranging medical disciplines. Given continued clinical success, increased adoption of perinatal tissues as a disruptive technology platform has allowed for significant penetration into the multi-billion dollar biologics market. Here, we review current progress and future applications of perinatal biomaterials, as well as associated regulatory issues.
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Affiliation(s)
- Marc C Moore
- Stephenson School of Biomedical Engineering, University of Oklahoma, 202 W. Boyd Street, Carson Engineering Center, Room 107, Norman, OK 73019, P. 405-325-2621, F 405-325-7508
| | - Aurore Van De Walle
- Laboratoire Matière et Systèmes Complexes MSC, UMR 7057, CNRS & University Paris Diderot, 75205 Paris Cedex 13, France, P. +33 (0)1 57 27 62 10, F. +33 (0)1 57 27 62 11
| | - Jerry Chang
- BioD Logics, LLC., 7740A Trinity Road, Cordova, TN 38018, P. 901-417-7868
| | - Cassandra Juran
- NASA Ames Research Center, Space Bioscience BLDG 236 MS: 236-7, Moffett Field, CA 94035, P. 650-604-6390
| | - Peter S McFetridge
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, JG-56 Biomedical Sciences Building, P.O. Box 116131, Gainesville, FL 32611-6131, P. 352-273-9325, F 352-273-9221
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Sivarajasingam SP, Imami N, Johnson MR. Myometrial cytokines and their role in the onset of labour. J Endocrinol 2016; 231:R101-R119. [PMID: 27647860 DOI: 10.1530/joe-16-0157] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 09/19/2016] [Indexed: 12/12/2022]
Abstract
Human labour is an inflammatory event, physiologically driven by an interaction between hormonal and mechanical factors and pathologically associated with infection, bleeding and excessive uterine stretch. The initiation and communicators of inflammation is still not completely understood; however, a key role for cytokines has been implicated. We summarise the current understanding of the nature and role of cytokines, chemokines and hormones and their involvement in signalling within the myometrium particularly during labour.
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Affiliation(s)
- S P Sivarajasingam
- Department of Surgery and CancerImperial College London, Chelsea and Westminster Hospital, London, UK
| | - N Imami
- Department of MedicineImperial College London, London, UK
| | - M R Johnson
- Department of Surgery and CancerImperial College London, Chelsea and Westminster Hospital, London, UK
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McDonald EA, Kurtis JD, Acosta L, Gundogan F, Sharma S, Pond-Tor S, Wu HW, Friedman JF. Schistosome egg antigens elicit a proinflammatory response by trophoblast cells of the human placenta. Infect Immun 2013; 81:704-12. [PMID: 23250950 PMCID: PMC3584891 DOI: 10.1128/iai.01149-12] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Accepted: 12/11/2012] [Indexed: 01/23/2023] Open
Abstract
Schistosomiasis affects nearly 40 million women of reproductive age. Many of these women are infected while pregnant and lactating. Several studies have demonstrated transplacental trafficking of schistosome antigens; however, little is known regarding how these antigens affect the developing fetus and placenta. To evaluate the impact of schistosomiasis on trophoblasts of the human placenta, we isolated primary trophoblast cells from healthy placentas delivered at term. These trophoblasts were placed in culture and treated with Schistosoma japonicum soluble egg antigens (SEA) or plasma from S. japonicum-infected pregnant women. Outcomes measured included cytokine production and activation of signal transduction pathways. Treatment of primary human trophoblast cells with SEA resulted in upregulation of the proinflammatory cytokines interleukin 6 (IL-6) and IL-8 and the chemokine macrophage inflammatory protein 1α (MIP-1α). Cytokine production in response to SEA was dose dependent and reminiscent of production in response to other proinflammatory stimuli, such as Toll-like receptor 2 (TLR2) and TLR4 agonists. In addition, the signaling pathways extracellular signal-regulated kinase 1/2 (ERK1/2), Jun N-terminal protein kinase (JNK), p38, and NF-κB were all activated by SEA in primary trophoblasts. These effects appeared to be mediated through both carbohydrate and protein epitopes of SEA. Finally, primary trophoblasts cocultured with plasma from S. japonicum-infected pregnant women produced increased levels of IL-8 compared to trophoblasts cocultured with plasma from uninfected pregnant women. We report here a direct impact of SEA on primary human trophoblast cells, which are critical for many aspects of a healthy pregnancy. Our data indicate that schistosome antigens can activate proinflammatory responses in trophoblasts, which might compromise maternal-fetal health in pregnancies complicated by schistosomiasis.
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Affiliation(s)
- Emily A McDonald
- Center for International Health Research, Rhode Island Hospital, Brown University Medical School, Providence, Rhode Island, USA.
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