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Rajakumar SA, Papp E, Lee KK, Grandal I, Merico D, Liu CC, Allo B, Zhang L, Grynpas MD, Minden MD, Hitzler JK, Guidos CJ, Danska JS. B cell acute lymphoblastic leukemia cells mediate RANK-RANKL-dependent bone destruction. Sci Transl Med 2021; 12:12/561/eaba5942. [PMID: 32938796 DOI: 10.1126/scitranslmed.aba5942] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 06/05/2020] [Accepted: 07/21/2020] [Indexed: 12/20/2022]
Abstract
Although most children survive B cell acute lymphoblastic leukemia (B-ALL), they frequently experience long-term, treatment-related health problems, including osteopenia and osteonecrosis. Because some children present with fractures at ALL diagnosis, we considered the possibility that leukemic B cells contribute directly to bone pathology. To identify potential mechanisms of B-ALL-driven bone destruction, we examined the p53 -/-; Rag2 -/-; Prkdcscid/scid triple mutant (TM) mice and p53 -/-; Prkdcscid/scid double mutant (DM) mouse models of spontaneous B-ALL. In contrast to DM animals, leukemic TM mice displayed brittle bones, and the TM leukemic cells overexpressed Rankl, encoding receptor activator of nuclear factor κB ligand. RANKL is a key regulator of osteoclast differentiation and bone loss. Transfer of TM leukemic cells into immunodeficient recipient mice caused trabecular bone loss. To determine whether human B-ALL can exert similar effects, we evaluated primary human B-ALL blasts isolated at diagnosis for RANKL expression and their impact on bone pathology after their transplantation into NOD.Prkdcscid/scidIl2rgtm1Wjl /SzJ (NSG) recipient mice. Primary B-ALL cells conferred bone destruction evident in increased multinucleated osteoclasts, trabecular bone loss, destruction of the metaphyseal growth plate, and reduction in adipocyte mass in these patient-derived xenografts (PDXs). Treating PDX mice with the RANKL antagonist recombinant osteoprotegerin-Fc (rOPG-Fc) protected the bone from B-ALL-induced destruction even under conditions of heavy tumor burden. Our data demonstrate a critical role of the RANK-RANKL axis in causing B-ALL-mediated bone pathology and provide preclinical support for RANKL-targeted therapy trials to reduce acute and long-term bone destruction in these patients.
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Affiliation(s)
- Sujeetha A Rajakumar
- Program in Genetics and Genome Biology, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Eniko Papp
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Program in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
| | - Kathy K Lee
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5T 3H7, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Ildiko Grandal
- Program in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
| | - Daniele Merico
- Center for Applied Genomics, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
| | - Careesa C Liu
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5T 3H7, Canada.,Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Bedilu Allo
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5T 3H7, Canada
| | - Lucia Zhang
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5T 3H7, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Marc D Grynpas
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5T 3H7, Canada.,Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Mark D Minden
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Princess Margaret Cancer Center, University Health Network, Toronto, Ontario M5G 2M9, Canada
| | - Johann K Hitzler
- Program in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada.,Department of Pediatrics, Division of Hematology and Oncology, Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Cynthia J Guidos
- Program in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Jayne S Danska
- Program in Genetics and Genome Biology, Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada. .,Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
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Li L, Liu P, Sun L, Bin Zhou, Fei J. PiggyBac transposon-based polyadenylation-signal trap for genome-wide mutagenesis in mice. Sci Rep 2016; 6:27788. [PMID: 27292714 PMCID: PMC4904408 DOI: 10.1038/srep27788] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 05/23/2016] [Indexed: 12/12/2022] Open
Abstract
We designed a new type of polyadenylation-signal (PAS) trap vector system in living mice, the piggyBac (PB) (PAS-trapping (EGFP)) gene trapping vector, which takes advantage of the efficient transposition ability of PB and efficient gene trap and insertional mutagenesis of PAS-trapping. The reporter gene of PB(PAS-trapping (EGFP)) is an EGFP gene with its own promoter, but lacking a poly(A) signal. Transgenic mouse lines carrying PB(PAS-trapping (EGFP)) and protamine 1 (Prm1) promoter-driven PB transposase transgenes (Prm1-PBase) were generated by microinjection. Male mice doubly positive for PB(PAS-trapping (EGFP)) and Prm1-PBase were crossed with WT females, generating offspring with various insertion mutations. We found that 44.8% (26/58) of pups were transposon-positive progenies. New transposon integrations comprised 26.9% (7/26) of the transposon-positive progenies. We found that 100% (5/5) of the EGFP fluorescence-positive mice had new trap insertions mediated by a PB transposon in transcriptional units. The direction of the EGFP gene in the vector was consistent with the direction of the endogenous gene reading frame. Furthermore, mice that were EGFP-PCR positive, but EGFP fluorescent negative, did not show successful gene trapping. Thus, the novel PB(PAS-trapping (EGFP)) system is an efficient genome-wide gene-trap mutagenesis in mice.
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Affiliation(s)
- Limei Li
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
- Department of vascular surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
- Key Laboratory of Arrhythmias of the Ministry of Education of China, East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Peng Liu
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
- Department of Cardiology, East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Liangliang Sun
- Department of Endocrinology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, PR China
| | - Bin Zhou
- Department of vascular surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Jian Fei
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
- Metastasis research institute, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
- School of Life Science and Technology, Tongji University, Shanghai, China
- Shanghai Research Center for Model Organisms, Shanghai, 201203, China
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