Ureaplasma species modulate cell adhesion molecules and growth factors in human brain microvascular endothelial cells
Copyright © 2019 Elsevier Ltd. All rights reserved..
Ureaplasma species (spp.) are considered commensals of the adult urogenital tract, but may cause chorioamnionitis and preterm birth as well as sepsis and meningitis in neonates. Pathomechanisms in Ureaplasma-driven neuroinflammation are largely unknown. This study addressed mRNA and protein expression of intercellular and vascular cell adhesion molecules (ICAM-1, VCAM-1), granulocyte-colony stimulating factor (G-CSF), and vascular endothelial growth factor (VEGF) in native or lipopolysaccharide (LPS) co-stimulated human brain microvascular endothelial cells (HBMEC) exposed to Ureaplasma (U.) urealyticum or U. parvum. Ureaplasma spp. reduced G-CSF mRNA (p < 0.05) and protein expression (p < 0.01) and increased VEGF mRNA levels (p < 0.01) in native HBMEC. Upon co-stimulation, Ureaplasma isolates enhanced LPS-evoked VEGF and ICAM-1 mRNA expression (p < 0.05), but mitigated G-CSF and VCAM-1 mRNA responses (p < 0.05). In line with previous findings, our results indicate an ability of Ureaplasma spp. to compromise blood-brain barrier integrity, mitigate immune defense, and subdue neuroprotective mechanisms. This may facilitate intracerebral inflammation, allow chronic infections, and promote brain injury. More pronounced effects in co-stimulated cells may indicate an immunomodulatory capacity of Ureaplasma spp.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:121 |
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| Enthalten in: |
Cytokine - 121(2019) vom: 01. Sept., Seite 154737 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Silwedel, Christine [VerfasserIn] |
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| Links: |
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| Themen: |
Cell Adhesion Molecules |
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| Anmerkungen: |
Date Completed 28.08.2020 Date Revised 28.08.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.cyto.2019.154737 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM297762257 |
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| 520 | |a Ureaplasma species (spp.) are considered commensals of the adult urogenital tract, but may cause chorioamnionitis and preterm birth as well as sepsis and meningitis in neonates. Pathomechanisms in Ureaplasma-driven neuroinflammation are largely unknown. This study addressed mRNA and protein expression of intercellular and vascular cell adhesion molecules (ICAM-1, VCAM-1), granulocyte-colony stimulating factor (G-CSF), and vascular endothelial growth factor (VEGF) in native or lipopolysaccharide (LPS) co-stimulated human brain microvascular endothelial cells (HBMEC) exposed to Ureaplasma (U.) urealyticum or U. parvum. Ureaplasma spp. reduced G-CSF mRNA (p < 0.05) and protein expression (p < 0.01) and increased VEGF mRNA levels (p < 0.01) in native HBMEC. Upon co-stimulation, Ureaplasma isolates enhanced LPS-evoked VEGF and ICAM-1 mRNA expression (p < 0.05), but mitigated G-CSF and VCAM-1 mRNA responses (p < 0.05). In line with previous findings, our results indicate an ability of Ureaplasma spp. to compromise blood-brain barrier integrity, mitigate immune defense, and subdue neuroprotective mechanisms. This may facilitate intracerebral inflammation, allow chronic infections, and promote brain injury. More pronounced effects in co-stimulated cells may indicate an immunomodulatory capacity of Ureaplasma spp | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cell adhesion molecule | |
| 650 | 4 | |a Growth factor | |
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| 650 | 4 | |a Neuroinflammation | |
| 650 | 4 | |a Ureaplasma | |
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| 650 | 7 | |a Intercellular Signaling Peptides and Proteins |2 NLM | |
| 700 | 1 | |a Speer, Christian P |e verfasserin |4 aut | |
| 700 | 1 | |a Haarmann, Axel |e verfasserin |4 aut | |
| 700 | 1 | |a Fehrholz, Markus |e verfasserin |4 aut | |
| 700 | 1 | |a Claus, Heike |e verfasserin |4 aut | |
| 700 | 1 | |a Schlegel, Nicolas |e verfasserin |4 aut | |
| 700 | 1 | |a Glaser, Kirsten |e verfasserin |4 aut | |
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