Volume 74, Issue 3 pp. 1595-1610
Original Article

Proteomic Profiling of Hepatocellular Adenomas Paves the Way to Diagnostic and Prognostic Approaches

Cyril Dourthe

Cyril Dourthe

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Oncoprot Platform, TBM-Core US 005, Bordeaux, France

These authors contributed equally to this work.Search for more papers by this author
Céline Julien

Céline Julien

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Department of Digestive Surgery, Bordeaux University Hospital, Bordeaux, France

These authors contributed equally to this work.Search for more papers by this author
Sylvaine Di Tommaso

Sylvaine Di Tommaso

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Oncoprot Platform, TBM-Core US 005, Bordeaux, France

Search for more papers by this author
Jean-William Dupuy

Jean-William Dupuy

University of Bordeaux, Proteome Platform, Bordeaux, France

Search for more papers by this author
Nathalie Dugot-Senant

Nathalie Dugot-Senant

Histopathology Platform, TBM-Core US 005, Bordeaux, France

Search for more papers by this author
Alexandre Brochard

Alexandre Brochard

Neurocentre Magendie, INSERM U1215, Bordeaux, France

Search for more papers by this author
Brigitte Le Bail

Brigitte Le Bail

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Department of Pathology, Bordeaux University Hospital, Bordeaux, France

Search for more papers by this author
Jean-Frédéric Blanc

Jean-Frédéric Blanc

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Department of Hepatology and Oncology, Bordeaux University Hospital, Bordeaux, France

Search for more papers by this author
Laurence Chiche

Laurence Chiche

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Department of Digestive Surgery, Bordeaux University Hospital, Bordeaux, France

Search for more papers by this author
Charles Balabaud

Charles Balabaud

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Search for more papers by this author
Paulette Bioulac-Sage

Paulette Bioulac-Sage

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Search for more papers by this author
Frédéric Saltel

Corresponding Author

Frédéric Saltel

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Oncoprot Platform, TBM-Core US 005, Bordeaux, France

These authors jointly supervised this work.

ADDRESS CORRESPONDENCE AND REPRINT REQUEST TO:

Frédéric Saltel, Ph.D.

INSERM, UMR1053, BaRITOn Bordeaux Research in Translational Oncology

146 rue Leo Saignat

33076 Bordeaux, France

E-mail: [email protected]

Tel.: +33 (0)5 57 57 17 07

or

Anne-Aurélie Raymond, Ph.D.

Oncoprot, TBM-Core US 005, INSERM UMR1053, BaRITOn Bordeaux Research in Translational Oncology

146 rue Leo Saignat

33076 Bordeaux, France

E-mail: [email protected]

Tel.: +33 (0)5 57 57 17 71

Search for more papers by this author
Anne-Aurélie Raymond

Corresponding Author

Anne-Aurélie Raymond

Univ. Bordeaux, INSERM, BaRITOn, U1053, Bordeaux, France

Oncoprot Platform, TBM-Core US 005, Bordeaux, France

These authors jointly supervised this work.

ADDRESS CORRESPONDENCE AND REPRINT REQUEST TO:

Frédéric Saltel, Ph.D.

INSERM, UMR1053, BaRITOn Bordeaux Research in Translational Oncology

146 rue Leo Saignat

33076 Bordeaux, France

E-mail: [email protected]

Tel.: +33 (0)5 57 57 17 07

or

Anne-Aurélie Raymond, Ph.D.

Oncoprot, TBM-Core US 005, INSERM UMR1053, BaRITOn Bordeaux Research in Translational Oncology

146 rue Leo Saignat

33076 Bordeaux, France

E-mail: [email protected]

Tel.: +33 (0)5 57 57 17 71

Search for more papers by this author
First published: 23 March 2021
Citations: 2
Supported by the Nouvelle Aquitaine Region (European FEDER Funds), the SIRIC BRIO, and the HepA association.
Potential conflict of interest: Nothing to report.

Abstract

Background and Aims

Through an exploratory proteomic approach based on typical hepatocellular adenomas (HCAs), we previously identified a diagnostic biomarker for a distinctive subtype of HCA with high risk of bleeding, already validated on a multicenter cohort. We hypothesized that the whole protein expression deregulation profile could deliver much more informative data for tumor characterization. Therefore, we pursued our analysis with the characterization of HCA proteomic profiles, evaluating their correspondence with the established genotype/phenotype classification and assessing whether they could provide added diagnosis and prognosis values.

Approach and Results

From a collection of 260 cases, we selected 52 typical cases of all different subgroups on which we built a reference HCA proteomics database. Combining laser microdissection and mass-spectrometry–based proteomic analysis, we compared the relative protein abundances between tumoral (T) and nontumoral (NT) liver tissues from each patient and we defined a specific proteomic profile of each of the HCA subgroups. Next, we built a matching algorithm comparing the proteomic profile extracted from a patient with our reference HCA database. Proteomic profiles allowed HCA classification and made diagnosis possible, even for complex cases with immunohistological or genomic analysis that did not lead to a formal conclusion. Despite a well-established pathomolecular classification, clinical practices have not substantially changed and the HCA management link to the assessment of the malignant transformation risk remains delicate for many surgeons. That is why we also identified and validated a proteomic profile that would directly evaluate malignant transformation risk regardless of HCA subtype.

Conclusions

This work proposes a proteomic-based machine learning tool, operational on fixed biopsies, that can improve diagnosis and prognosis and therefore patient management for HCAs.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.