Seiler, L.K.* ; Phung, N.L.* ; Nikolin, C.* ; Immenschuh, S.* ; Erck, C.* ; Kaufeld, J.* ; Haller, H.* ; Falk, C.S.* ; Jonczyk, R.* ; Lindner, P.* ; Thoms, S.* ; Siegl, J.* ; Mayer, G.* ; Feederle, R. ; Blume, C.A.*
An antibody-aptamer-hybrid lateral flow assay for detection of CXCL9 in antibody-mediated rejection after kidney transplantation.
Diagnostics 12:308 (2022)
Chronic antibody-mediated rejection (AMR) is a key limiting factor for the clinical outcome of a kidney transplantation (Ktx), where early diagnosis and therapeutic intervention is needed. This study describes the identification of the biomarker CXC-motif chemokine ligand (CXCL) 9 as an indicator for AMR and presents a new aptamer-antibody-hybrid lateral flow assay (hybrid-LFA) for detection in urine. Biomarker evaluation included two independent cohorts of kidney transplant recipients (KTRs) from a protocol biopsy program and used subgroup comparisons according to BANFF-classifications. Plasma, urine and biopsy lysate samples were analyzed with a Luminex-based multiplex assay. The CXCL9-specific hybrid-LFA was developed based upon a specific rat antibody immobilized on a nitrocellulose-membrane and the coupling of a CXCL9-binding aptamer to gold nanoparticles. LFA performance was assessed according to receiver operating characteristic (ROC) analysis. Among 15 high-scored biomarkers according to a neural network analysis, significantly higher levels of CXCL9 were found in plasma and urine and biopsy lysates of KTRs with biopsyproven AMR. The newly developed hybrid-LFA reached a sensitivity and specificity of 71% and an AUC of 0.79 for CXCL9. This point-of-care-test (POCT) improves early diagnosis-making in AMR after Ktx, especially in KTRs with undetermined status of donor-specific HLA-antibodies.
Impact Factor
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Times Cited
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Cited By
Altmetric
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Antibody ; Antibody-mediated Rejection (amr) ; Aptamer ; Aptamer-antibody-hybrid Lateral Flow Assay (hybrid-lfa) ; Biomarkers ; Cxcl9 (mig) ; Neural Net Analysis; Donor-specific Antibody; Non-hla Antibodies; Urinary Cxcl9; Ifn-gamma; Activation; Chemokines; Classification; Expression; Challenges; Induction
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2022
Prepublished im Jahr
HGF-Berichtsjahr
2022
ISSN (print) / ISBN
2075-4418
e-ISSN
2075-4418
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 12,
Heft: 2,
Seiten: ,
Artikelnummer: 308
Supplement: ,
Reihe
Verlag
MDPI
Verlagsort
St Alban-anlage 66, Ch-4052 Basel, Switzerland
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
Institut(e)
CF Monoclonal Antibodies (CF-MAB)
POF Topic(s)
30201 - Metabolic Health
Forschungsfeld(er)
Helmholtz Diabetes Center
PSP-Element(e)
G-502210-001
A-631900-001
Förderungen
Central Innovation Program for Small and Medium Entrepreneurs of the Federal Ministry for Economic Affairs and Energy Germany
German Center for Infection Research
Deutsche Forschungsgemeinschaft
Copyright
Erfassungsdatum
2022-06-24