Molecular insights into the proteomic composition of porcine treated dentin matrix

牙本质 细胞外基质 流式细胞术 生物 细胞生物学 牙髓(牙) 再生(生物学) 乳牙 蛋白质组学 分子生物学 化学 基因 生物化学 病理 牙科 医学
作者
Xiya Zhang,Sha Zhou,Yuzhen Zhan,Zhanlong Mei,Aizhuo Qian,Ya Yuan,Xiaonan Zhang,Tiwei Fu,Shiyong Ma,Jie Li
出处
期刊:Materials today bio [Elsevier]
卷期号:25: 100990-100990
标识
DOI:10.1016/j.mtbio.2024.100990
摘要

Human-treated dentin matrix (hTDM) has recently been studied as a natural extracellular matrix-based biomaterial for dentin pulp regeneration. However, porcine-treated dentin matrix (pTDM) is a potential alternative scaffold due to limited availability. However, there is a dearth of information regarding the protein composition and underlying molecular mechanisms of pTDM. Methods: hTDM and pTDM were fabricated using human and porcine teeth, respectively, and their morphological characteristics were examined using scanning electron microscopy. Stem cells derived from human exfoliated deciduous teeth (SHEDs) were isolated and characterized using flow cytometry and multilineage differentiation assays. SHEDs were cultured in three-dimensional environments with hTDM, pTDM, or biphasic hydroxyapatite/tricalcium phosphate. The expression of odontogenesis markers in SHEDs were assessed using real-time polymerase chain reaction and immunochemical staining. Subsequently, cell/TDM and cell/HA/TCP complexes were transplanted subcutaneously into nude mice. The protein composition of pTDM was analyzed using proteomics and compared to previously published data on hTDM. Results: pTDM and hTDM elicited comparable upregulation of odontogenesis-related genes and proteins in SHEDs. Furthermore, both demonstrated the capacity to stimulate root-related tissue regeneration in vivo. Proteomic analysis revealed the presence of 278 protein groups in pTDM, with collagens being the most abundant. Additionally, pTDM and hTDM shared 58 identical proteins, which may contribute to their similar abilities to induce odontogenesis. Both hTDM and pTDM exhibit comparable capabilities in inducing odontogenesis, potentially owing to their distinctive bioactive molecular networks.
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