Evidence map›Paper›PMID 42613996›Full record

ArticleClinical and translational medicine2026

Dissecting diffuse large B-cell lymphoma heterogeneity: New insights from a state-specific molecular characterisation.

Robel Papotti, Filippo Vit, Tamara Bittolo, Federico Pozzo, Stefania Bettelli, Samantha Pozzi, Luca Braglia, Elisa Forti, Arianna Di Napoli, M Christina Cox and 13 more

Abstract read
In one paragraph

Article in Clinical and translational medicine, 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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0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

23 authors.

Robel PapottiClinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), I.R.C.C.S., Aviano, Italy.ORCID 0009-0006-4338-005X
Filippo VitClinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), I.R.C.C.S., Aviano, Italy.
Tamara BittoloClinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), I.R.C.C.S., Aviano, Italy.
Federico PozzoClinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), I.R.C.C.S., Aviano, Italy.
Stefania BettelliMolecular Pathology and Predictive Medicine Unit, Modena University Hospital, Modena, Italy.
Samantha PozziOncohematology and Osteoncology Unit, Modena University Hospital, Modena, Italy.
Luca BragliaOncohematology and Osteoncology Unit, Modena University Hospital, Modena, Italy.
Elisa FortiMolecular Pathology and Predictive Medicine Unit, Modena University Hospital, Modena, Italy.
Arianna Di NapoliPathology Unit, Sapienza University Sant'Andrea Hospital, Rome, Italy.ORCID 0000-0002-3159-5380
M Christina CoxFondazione Policlinico Tor Vergata, University Hospital of Rome, Rome, Italy.ORCID 0000-0002-8597-8459
Tamar TadmorHematology Unit, Bnai Zion Medical Center, Haifa, Israel.ORCID 0000-0002-3435-8612
Pellegrino MustoAldo Moro University School of Medicine and Unit of Hematology and Stem Cell Transplantation, AOU Consorziale Policlinico, Bari, Italy.ORCID 0000-0003-3277-6594
Leonardo FlenghiDepartment of Emergency and Organ Transplantation, Azienda Ospedaliera di Perugia, Perugia, Italy.
Martina QuintiniDepartment of Emergency and Organ Transplantation, Azienda Ospedaliera di Perugia, Perugia, Italy.
Giovanna R MansuetoPathology Unit, IRCCS-CROB of Rionero in Vulture, Vulture, Italy.
Sara GalimbertiHematology Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy.ORCID 0000-0001-7899-5966
Valentina DonatiPathology Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy.
Michele SpinaOncologia Medica e dei Tumori Immuno-Correlati, Centro di Riferimento Oncologico di Aviano (CRO), I.R.C.C.S., Aviano, Italy.ORCID 0000-0001-6576-8182
Alberto ZamòPathology Unit, Julius-Maximilians-Universität, Würzburg, Germany.ORCID 0000-0001-6203-7966
Andreas RosenwaldPathology Unit, Julius-Maximilians-Universität, Würzburg, Germany.
Riccardo BombenClinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), I.R.C.C.S., Aviano, Italy.ORCID 0000-0002-8746-9404
Stefano SacchiOncohematology and Osteoncology Unit, Modena University Hospital, Modena, Italy.
Valter GatteiClinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico di Aviano (CRO), I.R.C.C.S., Aviano, Italy.

Funding

Associazione Italiana contro le Leucemie, linfomi e mielomi (AIL), Venezia Section, ItalyAssociazione Mantovana per la Ricerca sul Cancro (A.MA.RI.CA)Fondazione Giulia Maramotti e Fondazione GRADE OnlusFondazione Italiana Linfomi (FIL) Young Researcher Grant GR2020Italian Ministry of Health PNRR-MCNT2-2023-12378037Italian Ministry of Health (Ricerca Corrente)
6 · The paper itself

Abstract

backgroundDiffuse large B-cell lymphoma (DLBCL) is a biologically and clinically heterogeneous disease.

methodsIn this study, we analysed a real-world cohort of 178 newly diagnosed DLBCL patients homogeneously treated with R-CHOP-like regimens, integrating RNA sequencing, targeted mutational profiling and digital deconvolution using the EcoTyper algorithm.

resultsFive malignant B-cell states (S1-S5) were identified, each reflecting distinct differentiation and transcriptional programs with prognostic relevance, S1 and S5 representing the most favourable and adverse subtypes, respectively. EcoTyper-defined lymphoma ecotypes (LE1-LE9), capturing co-associations between malignant and microenvironmental cell states, further refined prognostic classification, with LE1/LE2 and LE9 associated with the worst and most favourable prognosis, respectively. Both B-cell states and LE retained independent prognostic value in multivariable analyses after adjusting for the cell of origin and the revised international prognostic index. Mutational profiling revealed state-specific patterns: S1 harboured mutations in genes involved in epigenetic regulation, cytoskeletal organisation and tumour microenvironment (TME) interactions (CREBBP, EZH2 and ACTB), whereas S5 was enriched for mutations promoting survival signalling, immune evasion and differentiation blockade (MYD88, CD79B and TP53). In vitro validation using human five DLBCL cell lines independently recapitulated the S1 and S5 transcriptomic states, supporting the existence of intrinsic, cell-autonomous biological programs. Pathway analysis indicated that S1 was linked to cell adhesion, extracellular matrix remodelling and inflammatory signalling, while S5 displayed enrichment of cell-cycle deregulation, metabolic reprogramming and immune evasion. Accordingly, S1 tumours appear reliant on TME interactions, whereas S5 tumours adopt a predominantly TME independent, intrinsically aggressive phenotype.

conclusionsCollectively, these findings delineate a biologically coherent framework linking pathway deregulation with cell state and ecotype-specific mutational landscapes, refining DLBCL risk classification and adding an additional dimension to conventional prognostic models.

Indexed as

Lymphoma, Large B-Cell, DiffuseFemaleHumansMaleMutationPrognosisTumor Microenvironmentdigital deconvolutionDLBCLEcoTyperlymphomatumour microenvironment

Identifiers

PMID42613996
PMCPMC13487464

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