Urine soluble TLR4 levels may contribute to predict urinary tract infection in children : the UTILISE Study

© 2023. The Author(s), under exclusive licence to International Pediatric Nephrology Association..

BACKGROUND: One of the most common bacterial infections in childhood is urinary tract infection (UTI). Toll-like receptors (TLRs) contribute to immune response against UTI recognizing specific pathogenic agents. Our aim was to determine whether soluble TLR4 (sTLR4), soluble TLR5 (sTLR5) and interleukin 8 (IL-8) can be used as biomarkers to diagnose UTI. We also aimed to reveal the relationship between urine Heat Shock Protein 70 (uHSP70) and those biomarkers investigated in this study.

METHODS: A total of 802 children from 37 centers participated in the study. The participants (n = 282) who did not meet the inclusion criteria were excluded from the study. The remaining 520 children, including 191 patients with UTI, 178 patients with non-UTI infections, 50 children with contaminated urine samples, 26 participants with asymptomatic bacteriuria and 75 healthy controls were included in the study. Urine and serum levels of sTLR4, sTLR5 and IL-8 were measured at presentation in all patients and after antibiotic treatment in patients with UTI.

RESULTS: Urine sTLR4 was higher in the UTI group than in the other groups. UTI may be predicted using 1.28 ng/mL as cut-off for urine sTLR4 with 68% sensitivity and 65% specificity (AUC = 0.682). In the UTI group, urine sTLR4 levels were significantly higher in pyelonephritis than in cystitis (p < 0.0001). Post-treatment urine sTLR4 levels in the UTI group were significantly lower than pre-treatment values (p < 0.0001).

CONCLUSIONS: Urine sTLR4 may be used as a useful biomarker in predicting UTI and subsequent pyelonephritis in children with UTI. A higher resolution version of the Graphical abstract is available as Supplementary information.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

2023

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:39

Enthalten in:

Pediatric nephrology (Berlin, Germany) - 39(2023), 2 vom: 13. Feb., Seite 483-491

Sprache:

Englisch

Beteiligte Personen:

Aksu, Bagdagul [VerfasserIn]
Afonso, Alberto Caldas [VerfasserIn]
Akil, Ipek [VerfasserIn]
Alpay, Harika [VerfasserIn]
Atmis, Bahriye [VerfasserIn]
Aydog, Ozlem [VerfasserIn]
Bayazıt, Aysun Karabay [VerfasserIn]
Bayram, Meral Torun [VerfasserIn]
Bilge, Ilmay [VerfasserIn]
Bulut, Ipek Kaplan [VerfasserIn]
Buyukkaragoz, Bahar [VerfasserIn]
Comak, Elif [VerfasserIn]
Demir, Belde Kasap [VerfasserIn]
Dincel, Nida [VerfasserIn]
Donmez, Osman [VerfasserIn]
Durmus, Mehmet Akif [VerfasserIn]
Dursun, Hasan [VerfasserIn]
Dusunsel, Ruhan [VerfasserIn]
Duzova, Ali [VerfasserIn]
Ertan, Pelin [VerfasserIn]
Gedikbasi, Asuman [VerfasserIn]
Goknar, Nilufer [VerfasserIn]
Guven, Sercin [VerfasserIn]
Hacihamdioglu, Duygu [VerfasserIn]
Jankauskiene, Augustina [VerfasserIn]
Kalyoncu, Mukaddes [VerfasserIn]
Kavukcu, Salih [VerfasserIn]
Kenan, Bahriye Uzun [VerfasserIn]
Kucuk, Nuran [VerfasserIn]
Kural, Bahar [VerfasserIn]
Litwin, Mieczysław [VerfasserIn]
Montini, Giovanni [VerfasserIn]
Morello, William [VerfasserIn]
Obrycki, Lukasz [VerfasserIn]
Omer, Beyhan [VerfasserIn]
Oner, Huseyin Adil [VerfasserIn]
Ozdemir, Ebru Misirli [VerfasserIn]
Ozkayin, Nese [VerfasserIn]
Paripovic, Dusan [VerfasserIn]
Pehlivanoglu, Cemile [VerfasserIn]
Saygili, Seha [VerfasserIn]
Schaefer, Franz [VerfasserIn]
Schaefer, Susanne [VerfasserIn]
Sonmez, Ferah [VerfasserIn]
Tabel, Yilmaz [VerfasserIn]
Tas, Nesrin [VerfasserIn]
Tasdemir, Mehmet [VerfasserIn]
Teixeira, Ana [VerfasserIn]
Tekcan, Demet [VerfasserIn]
Topaloglu, Rezan [VerfasserIn]
Tulpar, Sebahat [VerfasserIn]
Turkkan, Ozde Nisa [VerfasserIn]
Uysal, Berfin [VerfasserIn]
Uysalol, Metin [VerfasserIn]
Vitkevic, Renata [VerfasserIn]
Yavuz, Sevgi [VerfasserIn]
Yel, Sibel [VerfasserIn]
Yildirim, Tarik [VerfasserIn]
Yildirim, Zeynep Yuruk [VerfasserIn]
Yildiz, Nurdan [VerfasserIn]
Yuksel, Selcuk [VerfasserIn]
Yurtseven, Eray [VerfasserIn]
Yilmaz, Alev [VerfasserIn]

Links:

Volltext

Themen:

Biomarkers
Interleukin-8
Journal Article
TLR4
TLR4 protein, human
Toll-Like Receptor 4
Toll-like receptor 4
UTI
UTILISE study
Urinary tract infection

Anmerkungen:

Date Completed 19.12.2023

Date Revised 19.12.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s00467-023-06063-0

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM359632378