Chronic lymphocytic leukemia patient-derived xenografts recapitulate clonal evolution to Richter transformation.


Journal

Leukemia
ISSN: 1476-5551
Titre abrégé: Leukemia
Pays: England
ID NLM: 8704895

Informations de publication

Date de publication:
28 Nov 2023
Historique:
received: 13 06 2023
accepted: 15 11 2023
revised: 08 11 2023
medline: 29 11 2023
pubmed: 29 11 2023
entrez: 28 11 2023
Statut: aheadofprint

Résumé

Chronic lymphocytic leukemia (CLL) is a B-cell neoplasm with a heterogeneous clinical behavior. In 5-10% of patients the disease transforms into a diffuse large-B cell lymphoma known as Richter transformation (RT), which is associated with dismal prognosis. Here, we aimed to establish patient-derived xenograft (PDX) models to study the molecular features and evolution of CLL and RT. We generated two PDXs by injecting CLL (PDX12) and RT (PDX19) cells into immunocompromised NSG mice. Both PDXs were morphologically and phenotypically similar to RT. Whole-genome sequencing analysis at different time points of the PDX evolution revealed a genomic landscape similar to RT tumors from both patients and uncovered an unprecedented RT subclonal heterogeneity and clonal evolution during PDX generation. In PDX12, the transformed cells expanded from a very small subclone already present at the CLL stage. Transcriptomic analysis of PDXs showed a high oxidative phosphorylation (OXPHOS) and low B-cell receptor (BCR) signaling similar to the RT in the patients. IACS-010759, an OXPHOS inhibitor, reduced proliferation, and circumvented resistance to venetoclax. In summary, we have generated new RT-PDX models, one of them from CLL cells that mimicked the evolution of CLL to RT uncovering intrinsic features of RT cells of therapeutical value.

Identifiants

pubmed: 38017105
doi: 10.1038/s41375-023-02095-5
pii: 10.1038/s41375-023-02095-5
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Subventions

Organisme : Ministry of Economy and Competitiveness | Agencia Estatal de Investigación (Spanish Agencia Estatal de Investigación)
ID : RTI2018-094584-B-I00
Organisme : Ministry of Economy and Competitiveness | Agencia Estatal de Investigación (Spanish Agencia Estatal de Investigación)
ID : PID2021-123165OB-I00
Organisme : American Association for Cancer Research (American Association for Cancer Research, Inc.)
ID : 21-40-11-NADE
Organisme : European Hematology Association (EHA)
ID : RG-202012-00245
Organisme : Lady Tata Memorial Trust
ID : LADY_TATA_21_3223

Informations de copyright

© 2023. The Author(s).

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Auteurs

Heribert Playa-Albinyana (H)

Experimental Therapeutics in Lymphoid Malignancies Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain.
University of Barcelona, Barcelona, Spain.

Fabian Arenas (F)

Experimental Therapeutics in Lymphoid Malignancies Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain.

Romina Royo (R)

Barcelona Supercomputing Center (BSC), Barcelona, Spain.

Ariadna Giró (A)

Experimental Therapeutics in Lymphoid Malignancies Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.

Irene López-Oreja (I)

Experimental Therapeutics in Lymphoid Malignancies Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain.
Hematopathology Section, Pathology Department, Hospital Clínic, Barcelona, Spain.

Marta Aymerich (M)

Experimental Therapeutics in Lymphoid Malignancies Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain.
Hematopathology Section, Pathology Department, Hospital Clínic, Barcelona, Spain.

Mònica López-Guerra (M)

Experimental Therapeutics in Lymphoid Malignancies Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain.
Hematopathology Section, Pathology Department, Hospital Clínic, Barcelona, Spain.

Gerard Frigola (G)

Hematopathology Section, Pathology Department, Hospital Clínic, Barcelona, Spain.
Molecular Pathology of Lymphoid Neoplasms Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.

Sílvia Beà (S)

Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain.
University of Barcelona, Barcelona, Spain.
Hematopathology Section, Pathology Department, Hospital Clínic, Barcelona, Spain.
Molecular Pathology of Lymphoid Neoplasms Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.

Julio Delgado (J)

Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain.
University of Barcelona, Barcelona, Spain.
Hematology Department, Hospital Clínic, Barcelona, Spain.
Lymphoid Neoplasms Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.

Pablo M Garcia-Roves (PM)

University of Barcelona, Barcelona, Spain.
Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet del Llobregat, Barcelona, Spain.

Elías Campo (E)

Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain.
University of Barcelona, Barcelona, Spain.
Hematopathology Section, Pathology Department, Hospital Clínic, Barcelona, Spain.
Molecular Pathology of Lymphoid Neoplasms Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.

Ferran Nadeu (F)

Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain.
Molecular Pathology of Lymphoid Neoplasms Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.

Dolors Colomer (D)

Experimental Therapeutics in Lymphoid Malignancies Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain. dcolomer@clinic.cat.
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Barcelona, Spain. dcolomer@clinic.cat.
University of Barcelona, Barcelona, Spain. dcolomer@clinic.cat.
Hematopathology Section, Pathology Department, Hospital Clínic, Barcelona, Spain. dcolomer@clinic.cat.

Classifications MeSH