Engineered BMP2/BMP7 extracellular vesicles induce autocrine BMP release driving SMAD phosphorylation to promote bone formation

Abstract In the United States, impaired bone healing impacts ~600,000 patients annually. Bone morphogenetic protein 2 (rhBMP2) therapy is impeded by low bone quality and adverse effects. Here, mesenchymal stem cells, engineered to produce BMP2 and BMP2/7 containing extracellular vesicles (BMP2-EV an...

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Main Authors: Zeji Du, Skylar A. Rizzo, Tiffany L. Sarrafian, Monique S. Bagwell, Ryan C. Mahlberg, Ashley Amontree, Paige Schiebel, Dinah M. Tauferner, Zoe S. LeBrasseur, Tyra A. Witt, Mary Nagel, Kyla A. Boyd, Humberto De Vitto, Matthew L. Hillestad, Paul G. Stalboerger, Matthew T. Houdek, Rafael J. Sierra, Atta Behfar
Format: Article
Language:English
Published: Nature Portfolio 2025-06-01
Series:npj Regenerative Medicine
Online Access:https://doi.org/10.1038/s41536-025-00405-2
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author Zeji Du
Skylar A. Rizzo
Tiffany L. Sarrafian
Monique S. Bagwell
Ryan C. Mahlberg
Ashley Amontree
Paige Schiebel
Dinah M. Tauferner
Zoe S. LeBrasseur
Tyra A. Witt
Mary Nagel
Kyla A. Boyd
Humberto De Vitto
Matthew L. Hillestad
Paul G. Stalboerger
Matthew T. Houdek
Rafael J. Sierra
Atta Behfar
author_facet Zeji Du
Skylar A. Rizzo
Tiffany L. Sarrafian
Monique S. Bagwell
Ryan C. Mahlberg
Ashley Amontree
Paige Schiebel
Dinah M. Tauferner
Zoe S. LeBrasseur
Tyra A. Witt
Mary Nagel
Kyla A. Boyd
Humberto De Vitto
Matthew L. Hillestad
Paul G. Stalboerger
Matthew T. Houdek
Rafael J. Sierra
Atta Behfar
author_sort Zeji Du
collection DOAJ
description Abstract In the United States, impaired bone healing impacts ~600,000 patients annually. Bone morphogenetic protein 2 (rhBMP2) therapy is impeded by low bone quality and adverse effects. Here, mesenchymal stem cells, engineered to produce BMP2 and BMP2/7 containing extracellular vesicles (BMP2-EV and BMP2/7-EV), provided an alternative means of stimulating bone formation. BMP2-EV and BMP2/7-EV drove increased calcium deposition and alkaline phosphatase activity; with increase in osterix, RUNX2, osteocalcin, and osteopontin documenting osteoblast differentiation. BMP2/7-EV induced SMAD phosphorylation and calcium deposition, was inhibited by DMH1, a BMP I receptor inhibitor, demonstrating BMP receptor dependence. BMP2 and BMP7 extracellular vesicle encapsulation was confirmed with preserved potency following treatment with BMP antagonist, Noggin. Application of BMP2/7-EV in a rat calvarial defect model demonstrated enhanced bone formation on micro-computed tomography and histopathologic analysis, equaling rhBMP2. BMP2/7-EV mediated bone formation here highlights EVs as a unique modality for delivery of tailored polyvalent regenerative biotherapies.
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publishDate 2025-06-01
publisher Nature Portfolio
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series npj Regenerative Medicine
spelling doaj-art-3e2d92ed3adc4c03b1519de7bae537cd2025-08-20T03:10:38ZengNature Portfolionpj Regenerative Medicine2057-39952025-06-0110111610.1038/s41536-025-00405-2Engineered BMP2/BMP7 extracellular vesicles induce autocrine BMP release driving SMAD phosphorylation to promote bone formationZeji Du0Skylar A. Rizzo1Tiffany L. Sarrafian2Monique S. Bagwell3Ryan C. Mahlberg4Ashley Amontree5Paige Schiebel6Dinah M. Tauferner7Zoe S. LeBrasseur8Tyra A. Witt9Mary Nagel10Kyla A. Boyd11Humberto De Vitto12Matthew L. Hillestad13Paul G. Stalboerger14Matthew T. Houdek15Rafael J. Sierra16Atta Behfar17Van Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineMayo Clinic Department of Virology and Gene Therapy, Mayo ClinicVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineMayo Clinic Department of Orthopedic MedicineMayo Clinic Department of Orthopedic MedicineVan Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative MedicineAbstract In the United States, impaired bone healing impacts ~600,000 patients annually. Bone morphogenetic protein 2 (rhBMP2) therapy is impeded by low bone quality and adverse effects. Here, mesenchymal stem cells, engineered to produce BMP2 and BMP2/7 containing extracellular vesicles (BMP2-EV and BMP2/7-EV), provided an alternative means of stimulating bone formation. BMP2-EV and BMP2/7-EV drove increased calcium deposition and alkaline phosphatase activity; with increase in osterix, RUNX2, osteocalcin, and osteopontin documenting osteoblast differentiation. BMP2/7-EV induced SMAD phosphorylation and calcium deposition, was inhibited by DMH1, a BMP I receptor inhibitor, demonstrating BMP receptor dependence. BMP2 and BMP7 extracellular vesicle encapsulation was confirmed with preserved potency following treatment with BMP antagonist, Noggin. Application of BMP2/7-EV in a rat calvarial defect model demonstrated enhanced bone formation on micro-computed tomography and histopathologic analysis, equaling rhBMP2. BMP2/7-EV mediated bone formation here highlights EVs as a unique modality for delivery of tailored polyvalent regenerative biotherapies.https://doi.org/10.1038/s41536-025-00405-2
spellingShingle Zeji Du
Skylar A. Rizzo
Tiffany L. Sarrafian
Monique S. Bagwell
Ryan C. Mahlberg
Ashley Amontree
Paige Schiebel
Dinah M. Tauferner
Zoe S. LeBrasseur
Tyra A. Witt
Mary Nagel
Kyla A. Boyd
Humberto De Vitto
Matthew L. Hillestad
Paul G. Stalboerger
Matthew T. Houdek
Rafael J. Sierra
Atta Behfar
Engineered BMP2/BMP7 extracellular vesicles induce autocrine BMP release driving SMAD phosphorylation to promote bone formation
npj Regenerative Medicine
title Engineered BMP2/BMP7 extracellular vesicles induce autocrine BMP release driving SMAD phosphorylation to promote bone formation
title_full Engineered BMP2/BMP7 extracellular vesicles induce autocrine BMP release driving SMAD phosphorylation to promote bone formation
title_fullStr Engineered BMP2/BMP7 extracellular vesicles induce autocrine BMP release driving SMAD phosphorylation to promote bone formation
title_full_unstemmed Engineered BMP2/BMP7 extracellular vesicles induce autocrine BMP release driving SMAD phosphorylation to promote bone formation
title_short Engineered BMP2/BMP7 extracellular vesicles induce autocrine BMP release driving SMAD phosphorylation to promote bone formation
title_sort engineered bmp2 bmp7 extracellular vesicles induce autocrine bmp release driving smad phosphorylation to promote bone formation
url https://doi.org/10.1038/s41536-025-00405-2
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