NDLI: Inflammatory mediators of systemic inflammation in neonatal sepsis

Content Provider	Springer Nature Link
Author	Sugitharini, V. Prema, A. Berla Thangam, E.
Copyright Year	2013
Abstract	Sepsis refers to severe systemic inflammation in response to invading pathogens. To understand the molecular events that initiate the systemic inflammatory response, various inflammatory mediators were analyzed in neonatal sepsis samples and compared with normal samples.We initially measured the levels of the various classical inflammatory mediators such as acute phase proteins [C-reactive protein (CRP) and procalcitonin (PCT)], granule-associated mediators (NE, MPO and NO), proinflammatory cytokines [tumour necrosis factor-α (TNFα), IL-1β and IL-6), antiinflammatory cytokines (IL-10 and IL-13) and chemokines [IL-8 and monocyte chemotactic protein (MCP-1)] and novel cytokines (IL-12/IL-23p40, IL-21 and IL-23) using ELISA. We also used the human inflammation antibody array membrane to profile the inflammatory proteins that are involved in neonatal sepsis.There were significantly higher levels of CRP (5.4 ± 0.70 mg/L), PCT (1.500 ± 0.2400 μg/L); NE (499.2 ± 22.01 μg/L), NO (54.22 ± 3.131 μM/L); TNFα (396.6 ± 37.40 pg/mL), IL-1β (445.3 ± 34.25 pg/mL), IL-6 (320.9 ± 43.38 pg/mL); IL-8 (429.5 ± 64.08 pg/mL) MCP-1 (626.25 ± 88.91 pg/mL), IL-10 (81.80 ± 9.45 pg/mL), IL-12/IL-23p40 (30.25 ± 0.6 pg/mL), IL-21 (8,263.3 ± 526.8 pg/mL) and IL-23 (6,083 ± 781.3 pg/mL) in neonates with sepsis compared to normal. The levels of MPO (21.20 ± 3.099 ng/mL) were downregulated, whereas there was no change in IL-13 (188.7 ± 10.63 pg/mL) levels in septic neonates when compared with normal. Using the human inflammation antibody array membrane, we detected the presence of 17 inflammatory proteins such as IL-3, IL6R, IL12p40, IL-16, TNFα, TNFβ, TNF R1, chemokines I-309, IP-10 (IFN-γ inducible protein 10), MCP-1, MCP-2, MIP 1β (macrophage inflammatory protein), MIP-1δ, eotaxin-2, growth factors TGFβ1 (transforming growth factor beta), PDGF (platelet derived growth factor), and cell adhesion molecule ICAM-1 (intracellular adhesion molecule) that were upregulated whereas RANTES which was downregulated in neonatal sepsis.The simultaneous secretion and release of multiple mediators such as proinflammatory cytokines and chemokines, cell adhesion molecules, and growth factors were found to be involved in the initiation of systemic inflammation in neonatal sepsis. Therefore, measuring the concentration of multiple mediators may help in the early detection of neonatal sepsis and help to avoid unnecessary antibiotic treatment.
Starting Page	1025
Ending Page	1034
Page Count	10
File Format	PDF
ISSN	10233830
Journal	Inflammation Research
Volume Number	62
Issue Number	12
e-ISSN	1420908X
Language	English
Publisher	Springer Basel
Publisher Date	2013-09-08
Publisher Place	Basel
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Neonatal sepsis Inflammatory mediators Cytokines Acute phase proteins Immunology Pharmacology/Toxicology Rheumatology Allergology Dermatology Neurology
Content Type	Text
Resource Type	Article
Subject	Pharmacology Immunology

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