Bone-Targeted Delivery of Cell-Penetrating-RUNX2 Fusion Protein in Osteoporosis Model
- 주제(키워드) Amino acids , Binding energy , Cell culture , Controlled drug delivery , Diseases , Hydroxyapatite , Recombinant proteins , Stem cells , Targeted drug delivery , Transcription , Binding tags , Bone formation , Bone targeting , Cell-penetrating protein , Osteogenic differentiation , Osteoporosis , Poly(aspartic acid) , Polyaspartic acid , Targeted delivery , Bone
- 등재 SCIE, SCOPUS
- OA유형 All Open Access, Gold
- 발행기관 John Wiley and Sons Inc
- 발행년도 2023
- URI http://www.dcollection.net/handler/ewha/000000209411
- 본문언어 영어
- Published As https://doi.org/10.1002/advs.202301570
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
The onset of osteoporosis leads to a gradual decrease in bone density due to an imbalance between bone formation and resorption. To achieve optimal drug efficacy with minimal side effects, targeted drug delivery to the bone is necessary. Previous studies have utilized peptides that bind to hydroxyapatite, a mineral component of bone, for bone-targeted drug delivery. In this study, a hydroxyapatite binding (HAB) tag is fused to 30Kc19α-Runt-related transcription factor 2 (RUNX2) for bone-targeting. This recombinant protein can penetrate the nucleus of human mesenchymal stem cells (hMSCs) and act as a master transcription factor for osteogenesis. The HAB tag increases the binding affinity of 30Kc19α-RUNX2 to mineral deposition in mature osteoblasts and bone tissue, without affecting its osteogenic induction capability. In the osteoporosis mouse model, intravenous injection of HAB-30Kc19α-RUNX2 results in preferential accumulation in the femur and promotes bone formation while reducing toxicity in the spleen. These findings suggest that HAB-30Kc19α-RUNX2 may be a promising candidate for bone-targeted therapy in osteoporosis. © 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.
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