Enhancing Immunomodulation and Osseointegration of Bone Implants via Thrombin‐Activated Platelet‐Rich Plasma Self‐Assembly DOI Open Access
Xiaotong Shi, Zongliang Wang, Zhiguo Bi

et al.

Advanced Healthcare Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Abstract Platelet‐rich plasma (PRP) is characterized by elevated concentrations of growth factors that facilitate bone repair. Nonetheless, the effective integration PRP with implants and sustained release its active constituents pose significant challenges. In this study, thrombin grafted onto surface polyetheretherketone (PEEK) via an N,N'‐Disuccinimidyl Carbonate (DSC) linker retained enzymatic activity enables controlled activation self‐assembly, resulting in formation a functional bio‐gel layer. The optimal concentration to be 100 U/ mL −1 determined, at which point both grafting amount reaches their peak, no further increases observed higher concentrations. solutions varying platelet enrichment ratios are subsequently activated on thrombin‐grafted PEEK surface, yielding self‐assembled bio‐gels capable factor for up 16 days. thrombin‐activated not only enhances vitro cell adhesion, proliferation, osteogenic differentiation, vascularization specific polarization macrophages, but also effectively facilitates vivo angiogenesis, immunomodulation dose‐dependent manner. Consequently, gel presents promising strategy biological functionalization orthopedic applications.

Language: Английский

A Covalent‐Metal Hybrid‐Link Organic Framework Spray for Portable and Instant Therapy of Deep‐Degree Burn DOI

Jiali Lu,

Yiming Xiang, Congyang Mao

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(33)

Published: March 25, 2024

Abstract Deep burns lead to extensive damage the dermal layer, necessitating a longer treatment duration than typical skin injuries. Such burn wounds become more susceptible drug‐resistant bacterial infections, thereby complicating and prolonging therapeutic process. In this study, unique spray composed of covalent metal hybrid‐linked organic frameworks (HLOF) material is developed that effectively eradicates methicillin‐resistant Staphylococcus aureus (MRSA) within 20 min by disrupting MRSA's surface electrons, destroying its cell membrane structure, ultimately causing demise with an impressive antibacterial rate 96.7%. This HLOF exhibited exceptional biological activity stability. During wound recovery procedure, promoted expression Vascular endothelial growthfactor(VEGF) stimulate angiogenesis while inhibiting proinflammatory factor Tumor necrosis alpha (TNF‐α) eliminate inflammation further enhance repair. study presents innovative approach for achieving outstanding properties improved biocompatibility through modifications made common (MOFs), thus expanding their potential applications.

Language: Английский

Citations

5

Biomimetic scaffolds loaded with mesenchymal stem cells (MSCs) or MSC-derived exosomes for enhanced wound healing DOI Creative Commons
Alireza Ghasempour, Hamideh Dehghan, Mahmoud Mahmoudi

et al.

Stem Cell Research & Therapy, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 9, 2024

Since wound healing is one of the most important medical challenges and common dressings have not been able to manage this challenge well today, efforts increased achieve an advanced dressing. Mesenchymal stem cells exosomes derived from them shown high potential in regenerating wounds due their immunomodulatory, anti-inflammatory, immunosuppressive, regenerative capacities. However, such as short life these cells, low durability area, stability resulted limitations use for healing. Nowadays, different scaffolds are considered suitable biomaterials These made natural or synthetic polymers promising ideal dressing that does disadvantages dressings. One strategies has attracted much attention today using seeding delivering MSCs exosomes. This combined strategy a enhancing shelf increasing In review, combination with comprehensively discussed.

Language: Английский

Citations

5

Enhancement of adipose stem cell quality via Cu‐MON: Transcriptome and bioinformatics analysis of normal and diabetic stem cells DOI Creative Commons

Richong Pang,

K. Liu,

Biou Liu

et al.

FASEB BioAdvances, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 18, 2025

Abstract Transplanted adipose stem cells (ASC) have a low survival rate in the body, and there are not many ASC that can be effectively used, which weakens their tissue repair function. Based on this status quo, new type of copper‐based metal–organic network (Cu‐MON) was used to pretreat regulate cell activity order improve efficacy therapy or reduce number thus reducing cost clinical treatment. Gene expression changes before after Cu‐MON treatment normal donor (ND‐ASC) 2 diabetes mellitus (T2DM‐ASC) were evaluated through RNA sequencing, KEGG GO enrichment analysis. The results showed improved quality by regulating immune response promoting paracrine secretion. IL‐17 signaling pathway IL‐6, CXCL8, MMP‐9 key pathways necessary genes affected ability cells. In addition, also antiviral Type I interferon pathway. Our research had response, secretion, improving capabilities. This approach biomaterial pretreatment is fast, convenient, relatively safe, provides strategies for efficiency therapies.

Language: Английский

Citations

0

High Expression of SERPINE1 and CTSL in Keratinocytes in Pressure Injury Caused by Ischemia-reperfusion Injury DOI
Liangjia Bi, Yaxin Liu, Lei Zhang

et al.

Tissue and Cell, Journal Year: 2025, Volume and Issue: 93, P. 102746 - 102746

Published: Jan. 22, 2025

Language: Английский

Citations

0

Enhancing Immunomodulation and Osseointegration of Bone Implants via Thrombin‐Activated Platelet‐Rich Plasma Self‐Assembly DOI Open Access
Xiaotong Shi, Zongliang Wang, Zhiguo Bi

et al.

Advanced Healthcare Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Abstract Platelet‐rich plasma (PRP) is characterized by elevated concentrations of growth factors that facilitate bone repair. Nonetheless, the effective integration PRP with implants and sustained release its active constituents pose significant challenges. In this study, thrombin grafted onto surface polyetheretherketone (PEEK) via an N,N'‐Disuccinimidyl Carbonate (DSC) linker retained enzymatic activity enables controlled activation self‐assembly, resulting in formation a functional bio‐gel layer. The optimal concentration to be 100 U/ mL −1 determined, at which point both grafting amount reaches their peak, no further increases observed higher concentrations. solutions varying platelet enrichment ratios are subsequently activated on thrombin‐grafted PEEK surface, yielding self‐assembled bio‐gels capable factor for up 16 days. thrombin‐activated not only enhances vitro cell adhesion, proliferation, osteogenic differentiation, vascularization specific polarization macrophages, but also effectively facilitates vivo angiogenesis, immunomodulation dose‐dependent manner. Consequently, gel presents promising strategy biological functionalization orthopedic applications.

Language: Английский

Citations

0