Functionalization of biomimetic mineralized collagen for bone tissue engineering

Zhu, Xiujie; Wang, Chenyu; Bai, Haotian; Zhang, Jiaxin; Wang, Zhonghan; Li, Zuhao; Zhao, Xin; Wang, Jincheng; Li, He

doi:10.1016/j.mtbio.2023.100660

Cited by 19 publications

(3 citation statements)

References 238 publications

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“…Collagen can be easily combined with other biomaterials; mineralized collagen (MC) can be formed by mineralization of HA and collagen molecules. Owing to similarities in structure and chemical composition between MC and natural bone components, the former demonstrates good osteogenic activity; it also increases the differentiation of MSCs to osteoblasts (Zhu et al, 2023). MC-modified bone cement significantly improves the adhesion of preosteoblasts and their proliferation; this promotes good osseointegration between the cement and host bone tissue.…”

Section: Natural Polymersmentioning

confidence: 99%

Advances in materials used for minimally invasive treatment of vertebral compression fractures

Sui,

Yu,

Sun

et al. 2023

Front. Bioeng. Biotechnol.

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Vertebral compression fractures are becoming increasingly common with aging of the population; minimally invasive materials play an essential role in treating these fractures. However, the unacceptable processing-performance relationships of materials and their poor osteoinductive performance have limited their clinical application. In this review, we describe the advances in materials used for minimally invasive treatment of vertebral compression fractures and enumerate the types of bone cement commonly used in current practice. We also discuss the limitations of the materials themselves, and summarize the approaches for improving the characteristics of bone cement. Finally, we review the types and clinical efficacy of new vertebral implants. This review may provide valuable insights into newer strategies and methods for future research; it may also improve understanding on the application of minimally invasive materials for the treatment of vertebral compression fractures.

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Section: Natural Polymersmentioning

confidence: 99%

Advances in materials used for minimally invasive treatment of vertebral compression fractures

Sui,

Yu,

Sun

et al. 2023

Front. Bioeng. Biotechnol.

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“…Within this process, calcium ions accumulate, aggregate, and, post-nucleation, foster the emergence of hydroxyapatite crystals on collagen fiber surfaces. In contrast, the preparation of IMC predominantly utilizes the Polymer-Induced Liquid-Precursor (PILP) pathway ( Zhu et al, 2023 ). This approach builds upon the conventional ion-mediated crystallization strategy by incorporating acidic polymers such as polyacrylic acid (PAA) and polyaspartic acid (PAsP).…”

Section: Introductionmentioning

confidence: 99%

A variable mineralization time and solution concentration intervene in the microstructure of biomimetic mineralized collagen and potential osteogenic microenvironment

Zhu,

Bai,

Liu

et al. 2023

Front. Bioeng. Biotechnol.

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The absence of a conducive bone formation microenvironment between fractured ends poses a significant challenge in repairing large bone defects. A promising solution is to construct a bone formation microenvironment that mimics natural bone tissue. Biomimetic mineralized collagen possesses a chemical composition and microstructure highly similar to the natural bone matrix, making it an ideal biomimetic bone substitute material. The microstructure of biomimetic mineralized collagen is influenced by various factors, and its biomineralization and microstructure, in turn, affect its physicochemical properties and biological activity. We aimed to utilize mineralization time and solution concentration as variables and employed the polymer-induced liquid precursor strategy to fabricate mineralized collagen with diverse microstructures, to shed light on how mineralization parameters impact the material microstructure and physicochemical properties. We also investigated the influence of microstructure and physicochemical properties on cell biocompatibility and the bone-forming microenvironment. Through comprehensive characterization, we examined the physical and chemical properties of I-EMC under various mineralization conditions and assessed the in vitro and in vivo biocompatibility and osteogenic performance. By investigating the relationship between mineralization parameters, material physicochemical properties, and osteogenic performance, we revealed how microstructures influence cellular behaviors like biocompatibility and osteogenic microenvironment. Encouragingly, mineralization solutions with varying concentrations, stabilized by polyacrylic acid, successfully produced intrafibrillar and extrafibrillar mineralized collagen. Compared to non-mineralized collagen, all mineralized samples demonstrated improved bone-forming performance. Notably, samples prepared with a 1× mineralization solution exhibited relatively smooth surfaces with even mineralization. Extending the mineralization time enhanced the degree of mineralization and osteogenic performance. Conversely, samples prepared with a 2× mineralization solution had rough surfaces with large calcium phosphate particles, indicating non-uniform mineralization. Overall, our research advances the potential for commercial production of mineralized collagen protein products, characterized by dual biomimetic properties, and their application in treating various types of bone defects.

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“…To overcome these limitations, PLA can be combined with other biomaterials, including collagen (COL) and calcium phosphates (CaPs). COL, a natural protein found in the extracellular matrix of bone, has high biocompatibility, bioactivity, and hydrophilicity [8]. Meanwhile, bioceramics known as CaPs have become a common choice for bone repair systems.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Scaffolds of Polylactic Acid, Collagen, and Amorphous Calcium Phosphate for Bone Repair

Cárdenas-Aguazaco,

Camacho,

Gómez-Pachón

et al. 2023

Pharmaceutics

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Most electrospun scaffolds for bone tissue engineering typically use hydroxyapatite (HA) or beta tricalcium phosphate (β-TCP). However, the biological activity of these crystalline compounds can be limited due to their low solubility. Therefore, amorphous calcium phosphate (ACP) may be an alternative in bone repair scaffolds. This study analyzes the morphology, porosity, mechanical strength, and surface chemistry of electrospun scaffolds composed of polylactic acid and collagen integrated with hydroxyapatite (MHAP) or amorphous calcium phosphate (MACP). In addition, the in vitro biocompatibility, osteogenic differentiation, and growth factor production associated with bone repair using human Wharton’s jelly-derived mesenchymal stem cells (hWJ-MSCs) are evaluated. The results show that the electrospun MHAP and MACP scaffolds exhibit a fibrous morphology with interconnected pores. Both scaffolds exhibit favorable biocompatibility and stimulate the proliferation and osteogenesis of hWJ-MSCs. However, cell adhesion and osteocalcin production are greater in the MACP scaffold compared to the MHAP scaffold. In addition, the MACP scaffold shows significant production of bone-repair-related growth factors such as transforming growth factor-beta 1 (TGF-β1), providing a solid basis for its use in bone tissue engineering.

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Functionalization of biomimetic mineralized collagen for bone tissue engineering

Cited by 19 publications

References 238 publications

Advances in materials used for minimally invasive treatment of vertebral compression fractures

Advances in materials used for minimally invasive treatment of vertebral compression fractures

A variable mineralization time and solution concentration intervene in the microstructure of biomimetic mineralized collagen and potential osteogenic microenvironment

Electrospun Scaffolds of Polylactic Acid, Collagen, and Amorphous Calcium Phosphate for Bone Repair

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