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Xiao B, Ackun-Farmmer MA, Adjei-Sowah E, Liu Y, Chandrasiri I, Benoit DSW. Advancing Bone-Targeted Drug Delivery: Leveraging Biological Factors and Nanoparticle Designs to Improve Therapeutic Efficacy. ACS Biomater Sci Eng 2024; 10:2224-2234. [PMID: 38537162 DOI: 10.1021/acsbiomaterials.3c01022] [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] [Indexed: 04/09/2024]
Abstract
Designing targeted drug delivery systems to effectively treat bone diseases ranging from osteoporosis to nonunion bone defects remains a significant challenge. Previously, nanoparticles (NPs) self-assembled from diblock copolymers of poly(styrene-alt-maleic anhydride)-b-poly(styrene) (PSMA-b-PS) delivering a Wnt agonist were shown to effectively target bone and improve healing via the introduction of a peptide with high affinity to tartrate-resistant acid phosphatase (TRAP), an enzyme deposited by the osteoclasts during bone remodeling. Despite these promising results, the underlying biological factors governing targeting and subsequent drug delivery system (DDS) design parameters have not been examined to enable the rational design to improve bone selectivity. Therefore, this work investigated the effect of target ligand density, the treatment window after injury, specificity of TRAP binding peptide (TBP), the extent of TRAP deposition, and underlying genetic factors (e.g., mouse strain differences) on TBP-NP targeting. Data based on in vitro binding studies and in vivo biodistribution analyses using a murine femoral fracture model suggest that TBP-NP-TRAP interactions and TBP-NP bone accumulation were ligand-density-dependent; in vitro, TRAP affinity was correlated with ligand density up to the maximum of 200,000 TBP ligands/NP, while NPs with 80,000 TBP ligands showed 2-fold increase in fracture accumulation at day 21 post injury compared with that of untargeted or scrambled controls. While fracture accumulation exhibited similar trends when injected at day 3 compared to that at day 21 postfracture, there were no significant differences observed between TBP-functionalized and control NPs, possibly due to saturation of TRAP by NPs at day 3. Leveraging a calcium-depletion diet, TRAP deposition and TBP-NP bone accumulation were positively correlated, confirming that TRAP-TBP binding leads to TBP-NP bone accumulation in vivo. Furthermore, TBP-NP exhibited similar bone accumulation in both C57BL/6 and BALB/c mouse strains versus control NPs, suggesting the broad applicability of TBP-NP regardless of the underlying genetic differences. These studies provide insight into TBP-NP design, mechanism, and therapeutic windows, which inform NP design and treatment strategies for fractures and other bone-associated diseases that leverage TRAP, such as marrow-related hematologic diseases.
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Affiliation(s)
- Baixue Xiao
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14623, United States
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14623, United States
| | - Marian A Ackun-Farmmer
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14623, United States
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14623, United States
| | - Emmanuela Adjei-Sowah
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14623, United States
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14623, United States
| | - Yuxuan Liu
- Materials Science Program, University of Rochester, Rochester, New York 14623, United States
| | - Indika Chandrasiri
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14623, United States
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14623, United States
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14623, United States
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14623, United States
- Department of Chemical Engineering, University of Rochester, Rochester, New York 14623, United States
- Materials Science Program, University of Rochester, Rochester, New York 14623, United States
- Department of Bioengineering, Phil and Penny Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403, United States
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Xiao B, Liu Y, Chandrasiri I, Adjei-Sowah E, Mereness J, Yan M, Benoit DSW. Bone-Targeted Nanoparticle Drug Delivery System-Mediated Macrophage Modulation for Enhanced Fracture Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305336. [PMID: 37797180 PMCID: PMC10922143 DOI: 10.1002/smll.202305336] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/03/2023] [Indexed: 10/07/2023]
Abstract
Despite decades of progress, developing minimally invasive bone-specific drug delivery systems (DDS) to improve fracture healing remains a significant clinical challenge. To address this critical therapeutic need, nanoparticle (NP) DDS comprised of poly(styrene-alt-maleic anhydride)-b-poly(styrene) (PSMA-b-PS) functionalized with a peptide that targets tartrate-resistant acid phosphatase (TRAP) and achieves preferential fracture accumulation has been developed. The delivery of AR28, a glycogen synthase kinase-3 beta (GSK3β) inhibitor, via the TRAP binding peptide-NP (TBP-NP) expedites fracture healing. Interestingly, however, NPs are predominantly taken up by fracture-associated macrophages rather than cells typically associated with fracture healing. Therefore, the underlying mechanism of healing via TBP-NP is comprehensively investigated herein. TBP-NPAR28 promotes M2 macrophage polarization and enhances osteogenesis in preosteoblast-macrophage co-cultures in vitro. Longitudinal analysis of TBP-NPAR28 -mediated fracture healing reveals distinct spatial distributions of M2 macrophages, an increased M2/M1 ratio, and upregulation of anti-inflammatory and downregulated pro-inflammatory genes compared to controls. This work demonstrates the underlying therapeutic mechanism of bone-targeted NP DDS, which leverages macrophages as druggable targets and modulates M2 macrophage polarization to enhance fracture healing, highlighting the therapeutic benefit of this approach for fractures and bone-associated diseases.
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Affiliation(s)
- Baixue Xiao
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, 14623, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, 14623, USA
| | - Yuxuan Liu
- Materials Science Program, University of Rochester, Rochester, NY, 14623, USA
| | - Indika Chandrasiri
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, 14623, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, 14623, USA
| | - Emmanuela Adjei-Sowah
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, 14623, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, 14623, USA
| | - Jared Mereness
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, 14623, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, 14623, USA
| | - Ming Yan
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, 14623, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, 14623, USA
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, 14623, USA
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, 14623, USA
- Materials Science Program, University of Rochester, Rochester, NY, 14623, USA
- Department of Chemical Engineering, University of Rochester, Rochester, NY, 14623, USA
- Department of Bioengineering, Phil and Penny Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, OR, 97403, USA
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Properties of Leukemic Stem Cells in Regulating Drug Resistance in Acute and Chronic Myeloid Leukemias. Biomedicines 2022; 10:biomedicines10081841. [PMID: 36009388 PMCID: PMC9405586 DOI: 10.3390/biomedicines10081841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 11/17/2022] Open
Abstract
Notoriously known for their capacity to reconstitute hematological malignancies in vivo, leukemic stem cells (LSCs) represent key drivers of therapeutic resistance and disease relapse, posing as a major medical dilemma. Despite having low abundance in the bulk leukemic population, LSCs have developed unique molecular dependencies and intricate signaling networks to enable self-renewal, quiescence, and drug resistance. To illustrate the multi-dimensional landscape of LSC-mediated leukemogenesis, in this review, we present phenotypical characteristics of LSCs, address the LSC-associated leukemic stromal microenvironment, highlight molecular aberrations that occur in the transcriptome, epigenome, proteome, and metabolome of LSCs, and showcase promising novel therapeutic strategies that potentially target the molecular vulnerabilities of LSCs.
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An T, Yin H, Lu Y, Liu F. The Emerging Potential of Parthenolide Nanoformulations in Tumor Therapy. Drug Des Devel Ther 2022; 16:1255-1272. [PMID: 35517982 PMCID: PMC9063801 DOI: 10.2147/dddt.s355059] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/05/2022] [Indexed: 12/21/2022] Open
Abstract
Plant-derived sesquiterpene lactones are promising natural sources for the discovery of anti-cancer drugs. As an extensively studied sesquiterpene lactone, the tumor suppression effect of parthenolide (PTL) has been clarified by targeting a number of prominent signaling pathways and key protein regulators in carcinogenesis. Notably, PTL was also the first small molecule reported to eradicate cancer stem cells. Nevertheless, the clinical application of PTL as an antitumor agent remains limited, owing to some disadvantages such as low water solubility and poor bioavailability. Thus, nanomedicine has attracted much interest because of its great potential for transporting poorly soluble drugs to desired body sites. In view of the significant advantages over their free small-molecule counterparts, nanoparticle delivery systems appear to be a potential solution for addressing the delivery of hydrophobic drugs, including PTL. In this review, we summarized the key anticancer mechanisms underlined by PTL as well as engineered PTL nanoparticles synthesized to date. Therefore, PTL nanoformulations could be an alternative strategy to maximize the therapeutic value of PTL.
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Affiliation(s)
- Tao An
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, People's Republic of China
| | - Huanhuan Yin
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, People's Republic of China
| | - Yanting Lu
- College of TCM, Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, People's Republic of China
| | - Feng Liu
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, People's Republic of China.,Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center (SDATC), Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, People's Republic of China
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