Evidence map›Paper›PMID 42806299›Full record

ArticleCellular & molecular biology letters2026

Targeting biglycan-TLR2/TLR4 interaction with synthetic peptides mitigates inflammation and ameliorates renal function in ischemia-reperfusion injury.

Rosetta Merline, Louise Tzung-Harn Hsieh, Jinyang Zeng-Brouwers, Rajkumar Vutukuri, David C Briggs, Anthony J Day, Malgorzata Wygrecka, Szymon Nowak, Rafal Bartoszewski, Liliana Schaefer

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Article in Cellular & molecular biology letters, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Rosetta Merline *Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany.
Louise Tzung-Harn Hsieh *Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany.
Jinyang Zeng-BrouwersInstitute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany.
Rajkumar VutukuriInstitute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany.
David C BriggsSignalling and Structural Biology Laboratory, The Francis Crick Institute, London, UK.
Anthony J DayManchester Cell-Matrix Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
Malgorzata WygreckaCenter for Infections and Genomics of the Lung (CIGL), Justus Liebig University, Giessen, Germany.
Szymon NowakDepartment of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland.
Rafal BartoszewskiDepartment of Biophysics, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland.
Liliana SchaeferInstitute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany. schaefer@med.uni-frankfurt.de.ORCID https://orcid.org/0000-0002-3318-3005

Funding

Cardio-Pulmonary Institute (CPI), EXC 2026 390649896German Research Council SFB 1177, 259130777 F11Rafal Bartoszewski Polish National Science Center, Project ID: UMO-2022/47/B/NZ7/00051
6 · The paper itself

Abstract

backgroundRenal ischemia-reperfusion injury (IRI), characterized by enhanced inflammation, is a leading cause of acute kidney injury (AKI) with limited treatments beyond supportive dialysis. Biglycan through toll-like receptors (TLR)2/TLR4 signaling aggravates tissue damage in acute renal IRI. This study aimed to identify the TLR2/TLR4 binding sites of biglycan and test the efficacy of biglycan-derived peptides in vitro and in vivo.

methodsEpitope mapping was conducted using PepSpot peptide arrays with overlapping 15-mer biglycan peptides. Binding of wildtype (WT) and mutant biglycan proteins and synthesized peptides to TLR2 and TLR4 was analyzed by microscale thermophoresis. Nuclear Factor (NF)-κB activation was assessed in HEK-Blue-TLR2 and HEK-Blue-TLR4 reporter cells following stimulation with biglycan variants and peptides. Primary murine and human monocyte-derived macrophages were used to evaluate inflammatory responses in vitro. Renal IRI was induced in C57BL/6 mice with intravenous peptide treatment administered prior to surgery. Renal function, immune cell infiltration, and cytokine expression were assessed using serum creatinine measurements, immunohistochemistry, and molecular analyses.

resultsPepSpot epitope mapping identified

conclusionsThe findings delineate conserved biglycan-TLR2/TLR4 recognition sequences and design of inhibitory peptides with therapeutic efficacy in vitro and in vivo. Peptides that inhibit biglycan-TLR2/TLR4 binding offer a targeted therapeutic approach for mitigating biglycan-TLR-associated sterile and pathogen-induced inflammatory diseases, with significant translational relevance for IRI.

Indexed as

BiglycanInflammationKidneyPeptidesReperfusion InjuryToll-Like Receptor 2Toll-Like Receptor 4AnimalsHEK293 CellsHumansMacrophagesMaleMiceMice, Inbred C57BLNF-kappa BProtein BindingBiglycanNF-kappa BPeptidesToll-Like Receptor 2Toll-Like Receptor 4CytokinesEndogenous ligandExtracellular matrixInnate immunityProteoglycanSterile inflammation

Identifiers

PMID42806299
PMCPMC13617855

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.