1
|
Poveda-Garavito N, Combita AL. Contribution of the TIME in BCP-ALL: the basis for novel approaches therapeutics. Front Immunol 2024; 14:1325255. [PMID: 38299154 PMCID: PMC10827891 DOI: 10.3389/fimmu.2023.1325255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/28/2023] [Indexed: 02/02/2024] Open
Abstract
The bone marrow (BM) niche is a microenvironment where both immune and non-immune cells functionally interact with hematopoietic stem cells (HSC) and more differentiated progenitors, contributing to the regulation of hematopoiesis. It is regulated by various signaling molecules such as cytokines, chemokines, and adhesion molecules in its microenvironment. However, despite the strict regulation of BM signals to maintain their steady state, accumulating evidence in B-cell precursor acute lymphoblastic leukemia (BCP-ALL) indicates that leukemic cells can disrupt the physiological hematopoietic niche in the BM, creating a new leukemia-supportive microenvironment. This environment favors immunological evasion mechanisms and the interaction of these cells with the development and progression of BCP-ALL. With a growing understanding of the tumor immune microenvironment (TIME) in the development and progression of BCP-ALL, current strategies focused on "re-editing" TIME to promote antitumor immunity have been developed. In this review, we summarize how TIME cells are disrupted by the presence of leukemic cells, evading immunosurveillance mechanisms in the BCP-ALL model. We also explore the crosstalk between TIME and leukemic cells that leads to treatment resistance, along with the most promising immuno-therapy strategies. Understanding and further research into the role of the BM microenvironment in leukemia progression and relapse are crucial for developing more effective treatments and reducing patient mortality.
Collapse
Affiliation(s)
- Nathaly Poveda-Garavito
- Grupo de Investigación en Biología del Cáncer, Instituto Nacional de Cancerología (INC), Bogotá, Colombia
- Grupo de Investigación Traslacional en Oncología, Instituto Nacional de Cancerología (INC), Bogotá, Colombia
- Departamento de Microbiología, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Alba Lucía Combita
- Grupo de Investigación en Biología del Cáncer, Instituto Nacional de Cancerología (INC), Bogotá, Colombia
- Grupo de Investigación Traslacional en Oncología, Instituto Nacional de Cancerología (INC), Bogotá, Colombia
- Departamento de Microbiología, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá, Colombia
| |
Collapse
|
2
|
Isidro-Hernández M, Casado-García A, Oak N, Alemán-Arteaga S, Ruiz-Corzo B, Martínez-Cano J, Mayado A, Sánchez EG, Blanco O, Gaspar ML, Orfao A, Alonso-López D, De Las Rivas J, Riesco S, Prieto-Matos P, González-Murillo Á, Criado FJG, Cenador MBG, Ramírez-Orellana M, de Andrés B, Vicente-Dueñas C, Cobaleda C, Nichols KE, Sánchez-García I. Immune stress suppresses innate immune signaling in preleukemic precursor B-cells to provoke leukemia in predisposed mice. Nat Commun 2023; 14:5159. [PMID: 37620322 PMCID: PMC10449887 DOI: 10.1038/s41467-023-40961-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023] Open
Abstract
The initial steps of B-cell acute lymphoblastic leukemia (B-ALL) development usually pass unnoticed in children. Several preclinical studies have shown that exposure to immune stressors triggers the transformation of preleukemic B cells to full-blown B-ALL, but how this takes place is still a longstanding and unsolved challenge. Here we show that dysregulation of innate immunity plays a driving role in the clonal evolution of pre-malignant Pax5+/- B-cell precursors toward leukemia. Transcriptional profiling reveals that Myd88 is downregulated in immune-stressed pre-malignant B-cell precursors and in leukemic cells. Genetic reduction of Myd88 expression leads to a significant increase in leukemia incidence in Pax5+/-Myd88+/- mice through an inflammation-dependent mechanism. Early induction of Myd88-independent Toll-like receptor 3 signaling results in a significant delay of leukemia development in Pax5+/- mice. Altogether, these findings identify a role for innate immunity dysregulation in leukemia, with important implications for understanding and therapeutic targeting of the preleukemic state in children.
Collapse
Affiliation(s)
- Marta Isidro-Hernández
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Ana Casado-García
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Ninad Oak
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Silvia Alemán-Arteaga
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Belén Ruiz-Corzo
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Jorge Martínez-Cano
- Immune system development and function Unit, Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas -Universidad Autónoma de Madrid), Madrid, Spain
| | - Andrea Mayado
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Servicio de Citometría, Departamento de Medicina, Biomedical Research Networking Centre on Cancer CIBER-CIBERONC (CB16/12/00400), Institute of Health Carlos III, and Instituto de Biología Molecular y Celular del Cáncer, CSIC/Universidad de Salamanca, Salamanca, Spain
| | - Elena G Sánchez
- Department of Pediatric Hematology and Oncology, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain
| | - Oscar Blanco
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Departamento de Anatomía Patológica, Universidad de Salamanca, Salamanca, Spain
| | - Ma Luisa Gaspar
- Immunobiology Department, Carlos III Health Institute, 28220, Majadahonda (Madrid), Spain
| | - Alberto Orfao
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Servicio de Citometría, Departamento de Medicina, Biomedical Research Networking Centre on Cancer CIBER-CIBERONC (CB16/12/00400), Institute of Health Carlos III, and Instituto de Biología Molecular y Celular del Cáncer, CSIC/Universidad de Salamanca, Salamanca, Spain
| | - Diego Alonso-López
- Bioinformatics Unit, Cancer Research Center (CSIC-USAL), Salamanca, Spain
| | - Javier De Las Rivas
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Bioinformatics and Functional Genomics Research Group, Cancer Research Center (CSIC-USAL), Salamanca, Spain
| | - Susana Riesco
- Department of Pediatrics, Hospital Universitario de Salamanca, Paseo de San Vicente, 58-182, Salamanca, 37007, Spain
| | - Pablo Prieto-Matos
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Pediatrics, Hospital Universitario de Salamanca, Paseo de San Vicente, 58-182, Salamanca, 37007, Spain
| | - África González-Murillo
- Department of Pediatric Hematology and Oncology, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain
| | - Francisco Javier García Criado
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Departamento de Cirugía, , Universidad de Salamanca, Salamanca, Spain
| | - María Begoña García Cenador
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Departamento de Cirugía, , Universidad de Salamanca, Salamanca, Spain
| | - Manuel Ramírez-Orellana
- Department of Pediatric Hematology and Oncology, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain
| | - Belén de Andrés
- Immunobiology Department, Carlos III Health Institute, 28220, Majadahonda (Madrid), Spain
| | - Carolina Vicente-Dueñas
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.
- Department of Pediatrics, Hospital Universitario de Salamanca, Paseo de San Vicente, 58-182, Salamanca, 37007, Spain.
| | - César Cobaleda
- Immune system development and function Unit, Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas -Universidad Autónoma de Madrid), Madrid, Spain.
| | - Kim E Nichols
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA.
| | - Isidro Sánchez-García
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain.
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.
| |
Collapse
|
3
|
Pottosin I, Olivas-Aguirre M, Dobrovinskaya O. In vitro simulation of the acute lymphoblastic leukemia niche: a critical view on the optimal approximation for drug testing. J Leukoc Biol 2023; 114:21-41. [PMID: 37039524 DOI: 10.1093/jleuko/qiad039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 04/12/2023] Open
Abstract
Acute lymphoblastic leukemia with the worst prognosis is related to minimal residual disease. Minimal residual disease not only depends on the individual peculiarities of leukemic clones but also reflects the protective role of the acute lymphoblastic leukemia microenvironment. In this review, we discuss in detail cell-to-cell interactions in the 2 leukemic niches, more explored bone marrow and less studied extramedullary adipose tissue. A special emphasis is given to multiple ways of interactions of acute lymphoblastic leukemia cells with the bone marrow or extramedullary adipose tissue microenvironment, indicating observed differences in B- and T-cell-derived acute lymphoblastic leukemia behavior. This analysis argued for the usage of coculture systems for drug testing. Starting with a review of available sources and characteristics of acute lymphoblastic leukemia cells, mesenchymal stromal cells, endothelial cells, and adipocytes, we have then made an update of the available 2-dimensional and 3-dimensional systems, which bring together cellular elements, components of the extracellular matrix, or its imitation. We discussed the most complex available 3-dimensional systems like "leukemia-on-a-chip," which include either a prefabricated microfluidics platform or, alternatively, the microarchitecture, designed by using the 3-dimensional bioprinting technologies. From our analysis, it follows that for preclinical antileukemic drug testing, in most cases, intermediately complex in vitro cell systems are optimal, such as a "2.5-dimensional" coculture of acute lymphoblastic leukemia cells with niche cells (mesenchymal stromal cells, endothelial cells) plus matrix components or scaffold-free mesenchymal stromal cell organoids, populated by acute lymphoblastic leukemia cells. Due to emerging evidence for the correlation of obesity and poor prognosis, a coculture of adipocytes with acute lymphoblastic leukemia cells as a drug testing system is gaining shape.
Collapse
Affiliation(s)
- Igor Pottosin
- Laboratory of Immunobiology and Ionic Transport Regulation, University Center for Biomedical Research, University of Colima, Av. Enrique Arreola Silva 883, Guzmán City, Jalisco, 49000, Mexico
| | - Miguel Olivas-Aguirre
- Laboratory of Immunobiology and Ionic Transport Regulation, University Center for Biomedical Research, University of Colima, Av. Enrique Arreola Silva 883, Guzmán City, Jalisco, 49000, Mexico
- Division of Exact, Natural and Technological Sciences, South University Center (CUSUR), University of Guadalajara, Jalisco, Mexico
| | - Oxana Dobrovinskaya
- Laboratory of Immunobiology and Ionic Transport Regulation, University Center for Biomedical Research, University of Colima, Av. Enrique Arreola Silva 883, Guzmán City, Jalisco, 49000, Mexico
| |
Collapse
|
4
|
Fallati A, Di Marzo N, D’Amico G, Dander E. Mesenchymal Stromal Cells (MSCs): An Ally of B-Cell Acute Lymphoblastic Leukemia (B-ALL) Cells in Disease Maintenance and Progression within the Bone Marrow Hematopoietic Niche. Cancers (Basel) 2022; 14:cancers14143303. [PMID: 35884364 PMCID: PMC9323332 DOI: 10.3390/cancers14143303] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/17/2022] [Accepted: 07/04/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary B-cell acute lymphoblastic leukemia (B-ALL) is the most common pediatric cancer. Even though the cure rate actually exceeds 85%, the prognosis of relapsed/refractory patients is dismal. Recent literature data indicate that the bone marrow (BM) microenvironment could play a crucial role in the onset, maintenance and progression of the disease. In particular, mesenchymal stromal cells (MSCs), which are key components of the BM niche, actively crosstalk with leukemic cells providing crucial signals for their survival and resistance to therapy. We hereby review the main mechanisms exploited by MSCs to nurture and protect B-ALL cells that could become appealing targets for innovative microenvironment remodeling therapies to be coupled with classical leukemia-directed strategies. Abstract Mesenchymal stromal cells (MSCs) are structural components of the bone marrow (BM) niche, where they functionally interact with hematopoietic stem cells and more differentiated progenitors, contributing to hematopoiesis regulation. A growing body of evidence is nowadays pointing to a further crucial contribution of MSCs to malignant hematopoiesis. In the context of B-cell acute lymphoblastic leukemia (B-ALL), MSCs can play a pivotal role in the definition of a leukemia-supportive microenvironment, impacting on disease pathogenesis at different steps including onset, maintenance and progression. B-ALL cells hijack the BM microenvironment, including MSCs residing in the BM niche, which in turn shelter leukemic cells and protect them from chemotherapeutic agents through different mechanisms. Evidence is now arising that altered MSCs can become precious allies to leukemic cells by providing nutrients, cytokines, pro-survivals signals and exchanging organelles, as hereafter reviewed. The study of the mechanisms exploited by MSCs to nurture and protect B-ALL blasts can be instrumental in finding new druggable candidates to target the leukemic BM microenvironment. Some of these microenvironment-targeting strategies are already in preclinical or clinical experimentation, and if coupled with leukemia-directed therapies, could represent a valuable option to improve the prognosis of relapsed/refractory patients, whose management represents an unmet medical need.
Collapse
|
5
|
In Vitro and In Vivo Modeling of Normal and Leukemic Bone Marrow Niches: Cellular Senescence Contribution to Leukemia Induction and Progression. Int J Mol Sci 2022; 23:ijms23137350. [PMID: 35806354 PMCID: PMC9266537 DOI: 10.3390/ijms23137350] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 12/16/2022] Open
Abstract
Cellular senescence is recognized as a dynamic process in which cells evolve and adapt in a context dependent manner; consequently, senescent cells can exert both beneficial and deleterious effects on their surroundings. Specifically, senescent mesenchymal stromal cells (MSC) in the bone marrow (BM) have been linked to the generation of a supporting microenvironment that enhances malignant cell survival. However, the study of MSC’s senescence role in leukemia development has been straitened not only by the availability of suitable models that faithfully reflect the structural complexity and biological diversity of the events triggered in the BM, but also by the lack of a universal, standardized method to measure senescence. Despite these constraints, two- and three dimensional in vitro models have been continuously improved in terms of cell culture techniques, support materials and analysis methods; in addition, research on animal models tends to focus on the development of techniques that allow tracking leukemic and senescent cells in the living organism, as well as to modify the available mice strains to generate individuals that mimic human BM characteristics. Here, we present the main advances in leukemic niche modeling, discussing advantages and limitations of the different systems, focusing on the contribution of senescent MSC to leukemia progression.
Collapse
|
6
|
Cobaleda C, Vicente-Dueñas C, Sanchez-Garcia I. Infectious triggers and novel therapeutic opportunities in childhood B cell leukaemia. Nat Rev Immunol 2021; 21:570-581. [PMID: 33558682 DOI: 10.1038/s41577-021-00505-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2021] [Indexed: 01/30/2023]
Abstract
B cell acute lymphoblastic leukaemia (B-ALL) is the most common form of childhood cancer. Although treatment has advanced remarkably in the past 50 years, it still fails in ~20% of patients. Recent studies revealed that more than 5% of healthy newborns carry preleukaemic clones that originate in utero, but only a small percentage of these carriers will progress to overt B-ALL. The drivers of progression are unclear, but B-ALL incidence seems to be increasing in parallel with the adoption of modern lifestyles. Emerging evidence shows that a major driver for the conversion from the preleukaemic state to the B-ALL state is exposure to immune stressors, such as infection. Here, we discuss our current understanding of the environmental triggers and genetic predispositions that may lead to B-ALL, highlighting lessons from epidemiology, the clinic and animal models, and identifying priority areas for future research.
Collapse
Affiliation(s)
- Cesar Cobaleda
- Immune System Development and Function Unit, Centro de Biología Molecular Severo Ochoa, CSIC and Universidad Autónoma de Madrid, Madrid, Spain.
| | | | - Isidro Sanchez-Garcia
- Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain. .,Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC and Universidad de Salamanca, Salamanca, Spain.
| |
Collapse
|
7
|
Dander E, Palmi C, D’Amico G, Cazzaniga G. The Bone Marrow Niche in B-Cell Acute Lymphoblastic Leukemia: The Role of Microenvironment from Pre-Leukemia to Overt Leukemia. Int J Mol Sci 2021; 22:ijms22094426. [PMID: 33922612 PMCID: PMC8122951 DOI: 10.3390/ijms22094426] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 12/12/2022] Open
Abstract
Genetic lesions predisposing to pediatric B-cell acute lymphoblastic leukemia (B-ALL) arise in utero, generating a clinically silent pre-leukemic phase. We here reviewed the role of the surrounding bone marrow (BM) microenvironment in the persistence and transformation of pre-leukemic clones into fully leukemic cells. In this context, inflammation has been highlighted as a crucial microenvironmental stimulus able to promote genetic instability, leading to the disease manifestation. Moreover, we focused on the cross-talk between the bulk of leukemic cells with the surrounding microenvironment, which creates a “corrupted” BM malignant niche, unfavorable for healthy hematopoietic precursors. In detail, several cell subsets, including stromal, endothelial cells, osteoblasts and immune cells, composing the peculiar leukemic niche, can actively interact with B-ALL blasts. Through deregulated molecular pathways they are able to influence leukemia development, survival, chemoresistance, migratory and invasive properties. The concept that the pre-leukemic and leukemic cell survival and evolution are strictly dependent both on genetic lesions and on the external signals coming from the microenvironment paves the way to a new idea of dual targeting therapeutic strategy.
Collapse
Affiliation(s)
- Erica Dander
- Correspondence: (E.D.); (C.P.); Tel.: +39-(0)-39-2332229 (E.D. & C.P.); Fax: +39-(0)39-2332167 (E.D. & C.P.)
| | - Chiara Palmi
- Correspondence: (E.D.); (C.P.); Tel.: +39-(0)-39-2332229 (E.D. & C.P.); Fax: +39-(0)39-2332167 (E.D. & C.P.)
| | | | | |
Collapse
|
8
|
Dander E, Fallati A, Gulić T, Pagni F, Gaspari S, Silvestri D, Cricrì G, Bedini G, Portale F, Buracchi C, Starace R, Pasqualini F, D'Angiò M, Brizzolara L, Maglia O, Mantovani A, Garlanda C, Valsecchi MG, Locatelli F, Biondi A, Bottazzi B, Allavena P, D'Amico G. Monocyte-macrophage polarization and recruitment pathways in the tumour microenvironment of B-cell acute lymphoblastic leukaemia. Br J Haematol 2021; 193:1157-1171. [PMID: 33713428 DOI: 10.1111/bjh.17330] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 12/14/2022]
Abstract
B-cell acute lymphoblastic leukaemia (B-ALL) reprograms the surrounding bone marrow (BM) stroma to create a leukaemia-supportive niche. To elucidate the contribution of immune cells to the leukaemic microenvironment, we investigated the involvement of monocyte/macrophage compartments, as well as several recruitment pathways in B-ALL development. Immunohistochemistry analyses showed that CD68-expressing macrophages were increased in leukaemic BM biopsies, compared to controls and predominantly expressed the M2-like markers CD163 and CD206. Furthermore, the "non-classical" CD14+ CD16++ monocyte subset, expressing high CX3CR1 levels, was significantly increased in B-ALL patients' peripheral blood. CX3CL1 was shown to be significantly upregulated in leukaemic BM plasma, thus providing an altered migratory pathway possibly guiding NC monocyte recruitment into the BM. Additionally, the monocyte/macrophage chemoattractant chemokine ligand 2 (CCL2) strongly increased in leukaemic BM plasma, possibly because of the interaction of leukaemic cells with mesenchymal stromal cells and vascular cells and due to a stimulatory effect of leukaemia-related inflammatory mediators. C5a, a macrophage chemoattractant and M2-polarizing factor, further appeared to be upregulated in the leukaemic BM, possibly as an effect of PTX3 decrease, that could unleash complement cascade activation. Overall, deregulated monocyte/macrophage compartments are part of the extensive BM microenvironment remodelling at B-ALL diagnosis and could represent valuable targets for novel treatments to be coupled with classical chemotherapy.
Collapse
Affiliation(s)
- Erica Dander
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Alessandra Fallati
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Tamara Gulić
- IRCCS, Humanitas Clinical and Research Center, Rozzano (Mi), Italy
| | - Fabio Pagni
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Stefania Gaspari
- Department of Pediatric Hematology-Oncology, IRCCS Bambino Gesù Children's Hospital, Sapienza, University of Rome, Rome, Italy
| | - Daniela Silvestri
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Giulia Cricrì
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Gloria Bedini
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Federica Portale
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Chiara Buracchi
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Rita Starace
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Fabio Pasqualini
- IRCCS, Humanitas Clinical and Research Center, Rozzano (Mi), Italy
| | - Mariella D'Angiò
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Lisa Brizzolara
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Oscar Maglia
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Alberto Mantovani
- IRCCS, Humanitas Clinical and Research Center, Rozzano (Mi), Italy.,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele - Milan, Italy.,The William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Cecilia Garlanda
- IRCCS, Humanitas Clinical and Research Center, Rozzano (Mi), Italy.,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele - Milan, Italy
| | - Maria Grazia Valsecchi
- Center of Bioinformatics, Biostatistics and Bioimaging, School of Medicine and Surgery, University of Milano Bicocca, Monza, Italy
| | - Franco Locatelli
- Department of Pediatric Hematology-Oncology, IRCCS Bambino Gesù Children's Hospital, Sapienza, University of Rome, Rome, Italy
| | - Andrea Biondi
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| | - Barbara Bottazzi
- IRCCS, Humanitas Clinical and Research Center, Rozzano (Mi), Italy
| | - Paola Allavena
- IRCCS, Humanitas Clinical and Research Center, Rozzano (Mi), Italy
| | - Giovanna D'Amico
- Centro Ricerca Tettamanti, Pediatric Dep, University of Milano-Bicocca, Fondazione MBBM, Monza, Italy
| |
Collapse
|
9
|
Inhibition of inflammatory signaling in Pax5 mutant cells mitigates B-cell leukemogenesis. Sci Rep 2020; 10:19189. [PMID: 33154497 PMCID: PMC7644722 DOI: 10.1038/s41598-020-76206-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/22/2020] [Indexed: 12/11/2022] Open
Abstract
PAX5 is one of the most frequently mutated genes in B-cell acute lymphoblastic leukemia (B-ALL), and children with inherited preleukemic PAX5 mutations are at a higher risk of developing the disease. Abnormal profiles of inflammatory markers have been detected in neonatal blood spot samples of children who later developed B-ALL. However, how inflammatory signals contribute to B-ALL development is unclear. Here, we demonstrate that Pax5 heterozygosis, in the presence of infections, results in the enhanced production of the inflammatory cytokine interleukin-6 (IL-6), which appears to act in an autocrine fashion to promote leukemia growth. Furthermore, in vivo genetic downregulation of IL-6 in these Pax5 heterozygous mice retards B-cell leukemogenesis, and in vivo pharmacologic inhibition of IL-6 with a neutralizing antibody in Pax5 mutant mice with B-ALL clears leukemic cells. Additionally, this novel IL–6 signaling paradigm identified in mice was also substantiated in humans. Altogether, our studies establish aberrant IL6 expression caused by Pax5 loss as a hallmark of Pax5-dependent B-ALL and the IL6 as a therapeutic vulnerability for B-ALL characterized by PAX5 loss.
Collapse
|