Evidence map›Paper›PMID 41389877›Full record

ArticleCellular and molecular gastroenterology and hepatology2026

Metabolic Signatures of Acinetobacter baumannii and Klebsiella pneumoniae Infections in Acute-on-chronic Liver Failure.

Camilla Cadoli, Sania Arif, Wibke Ballhorn, Angela Brieger, Maximilian Joseph Brol, Florence Castelli, Hans-Peter Erasmus, Julia Fischer, Robert Gurke, Lisa Hahnefeld and 10 more

Abstract read
In one paragraph

Article in Cellular and molecular gastroenterology and hepatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

20 authors.

Camilla CadoliInstitute of Medical Microbiology and Infection Control, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany.
Sania ArifDepartment of Medicine B (Gastroenterology, Hepatology, Endocrinology, Clinical Infectiology), University Hospital Muenster, Muenster, Germany.
Wibke BallhornInstitute of Medical Microbiology and Infection Control, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany.
Angela BriegerMedical Clinic 1, Biomedical Research Laboratory, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany.
Maximilian Joseph BrolDepartment of Medicine B (Gastroenterology, Hepatology, Endocrinology, Clinical Infectiology), University Hospital Muenster, Muenster, Germany.
Florence CastelliDépartement Médicaments et Technologies pour la Santé (MTS), Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France; MetaboHUB, Gif-sur-Yvette, France.
Hans-Peter ErasmusMolecular Hepatology and Inflammation Research, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany.
Julia FischerDepartment of Medicine B (Gastroenterology, Hepatology, Endocrinology, Clinical Infectiology), University Hospital Muenster, Muenster, Germany.
Robert GurkeFaculty of Medicine, Institute of Clinical Pharmacology, Frankfurt am Main, Germany; Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Frankfurt am Main, Germany; Fraunhofer Cluster of Excellence Immune-mediated Diseases CIMD, Frankfurt am Main, Germany.
Lisa HahnefeldFaculty of Medicine, Institute of Clinical Pharmacology, Frankfurt am Main, Germany; Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Frankfurt am Main, Germany; Fraunhofer Cluster of Excellence Immune-mediated Diseases CIMD, Frankfurt am Main, Germany.
Christophe JunotDépartement Médicaments et Technologies pour la Santé (MTS), Université Paris-Saclay, CEA, INRAE, Gif-sur-Yvette, France; MetaboHUB, Gif-sur-Yvette, France.
Nico KrausMolecular Hepatology and Inflammation Research, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany.
Cristina OrtizMolecular Hepatology and Inflammation Research, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany.
Robert SchierwagenDepartment of Medicine B (Gastroenterology, Hepatology, Endocrinology, Clinical Infectiology), University Hospital Muenster, Muenster, Germany.
Sara Garcia TorresInstitute of Medical Microbiology and Infection Control, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany.
Frank Erhard UschnerDepartment of Medicine B (Gastroenterology, Hepatology, Endocrinology, Clinical Infectiology), University Hospital Muenster, Muenster, Germany.
Volker MüllerInstitute of Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Germany.
Jonel TrebickaDepartment of Medicine B (Gastroenterology, Hepatology, Endocrinology, Clinical Infectiology), University Hospital Muenster, Muenster, Germany; European Foundation for the Study of Chronic Liver Failure - EF CLIF, Barcelona, Spain.
Christoph WelschMolecular Hepatology and Inflammation Research, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany.
Volkhard A J KempfInstitute of Medical Microbiology and Infection Control, Goethe University Frankfurt, University Hospital, Frankfurt am Main, Germany. Electronic address: volkhard.kempf@ukffm.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND &

aimsAcute-on-chronic liver failure (ACLF) is a life-threatening syndrome of acute hepatic decompensation (AD) that leads to multiorgan failure and high mortality. Bacterial infections are often implicated in ACLF pathogenesis; however, their underlying molecular mechanisms remain poorly understood. This study employed a combined in vitro-ex vivo metabolomics approach to investigate infection-associated metabolic alterations relevant to ACLF.

methodsGut (Caco-2) cells were infected with Acinetobacter baumannii and Klebsiella pneumoniae strains. Metabolite profiling was conducted on cell culture supernatants, and selected metabolites were tested for hepatotoxicity in vitro using liver (HepG2) cells. Metabolomic analysis of sera from 2 independent patient cohorts (AD and ACLF) was conducted to validate in vitro findings and to assess their clinical relevance.

resultsDistinct metabolic signatures were identified in Abaumannii (19 metabolites) and Kpneumoniae (15 metabolites)-infected Caco-2 cells. Four key metabolites from each bacterial species were prioritized for further experiments: α-ketoglutarate, indoleacetic acid, p-coumaric acid, uridine (Abaumannii), desthiobiotin, N8-acetylspermidine, N-acetylglutamine, and β-pinene (Kpneumoniae). Hepatotoxicity was demonstrated in liver (HepG2) cells exposed to Caco-2 infected cell-derived supernatants, infection-associated metabolites, and metabolite mixtures (in all conditions, P < .0001). Increased levels of α-ketoglutarate (P = .0002), N-acetylglutamine (P = .0153), indoleacetic acid (P < .05), and N8-acetylspermidine (P < .01) have been confirmed in the sera of patients with AD and ACLF.

conclusionsOur findings suggest that metabolites associated with bacterial infections and hepatotoxic potential are significantly elevated in patients with AD and ACLF. These compounds may contribute to disease-related metabolic disturbances, representing promising candidates as early diagnostic biomarkers and targeted therapeutic strategies for ACLF.

Indexed as

Acinetobacter baumanniiAcinetobacter InfectionsAcute-On-Chronic Liver FailureKlebsiella InfectionsKlebsiella pneumoniaeMetabolomeAgedCaco-2 CellsFemaleHep G2 CellsHumansIndoleacetic AcidsKetoglutaric AcidsMaleMetabolomicsMiddle Agedindoleacetic acidIndoleacetic AcidsKetoglutaric AcidsInfection-associated MetabolitesLiver DiseaseMetabolomic ProfilingPotential Biomarkers

Identifiers

PMID41389877
PMCPMC12860731

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