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Regenerative endodontic treatment based on tissue engineering has recently gained interest in contemporary restorative dentistry. However, low survival rates and poor potential differentiation of stem cells could undermine the success rate of pulp regenerative therapy. Human gingival fibroblast-conditioned medium (hGF-CM) has been considered a potential therapy for tissue regeneration due to its stability in maintaining multiple factors essential for tissue regeneration compared to live cell transplantation. This study aimed to investigate the potency of hGF-CM on stem cells from human dental pulp (DPSC) in pulp regeneration. A series of experiments confirmed that hGF-CM contributes to a significant increase in proliferation, migration capability, and cell viability of DPSC after HO exposure. Moreover, it has been proved to facilitate the odontogenic differentiation of DPSC via qRT-PCR, ALP (alkaline phosphatase), and ARS (Alizarin Red S) staining. It has been discovered that such highly upregulated odontogenesis is related to certain types of ECM proteins (collagen and laminin) from hGF-CM via proteomics. In addition, it is found that the ERK pathway is a key mechanism via inhibition assay based on RNA-seq result. These findings demonstrate that hGF-CM could be beneficial biomolecules for pulp regeneration.
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http://dx.doi.org/10.3390/cells11213398 | DOI Listing |
Int Endod J
September 2025
Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, South Korea.
Aim: Prickle planar cell polarity (PCP) protein 2 (Prickle2) encodes a homologue of Drosophila prickle and is involved in the non-canonical Wnt/PCP signalling pathway. However, its exact role in dentinogenesis remains unclear. Dentinogenesis, a key process in tooth morphogenesis, involves the patterned arrangement of odontoblasts and the formation of dentine matrix along the pulp cavity.
View Article and Find Full Text PDFBiomaterials
August 2025
Department of Prosthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Cen
Dental tissue regeneration is often challenged by the hostile inflammatory microenvironment and the dysfunction of reparative cells due to oxidative stress. This study presents a reactive oxygen species (ROS)-scavenging nanozyme induced by ligand-to-metal charge transfer, engineered as a multifunctional capping material through the in situ growth of copper-gallate (CuGA) on hydroxyapatite nanofibers (HAFs). The obtained CuGA@HAF demonstrates superior ROS-scavenging capacity through its multi-enzyme mimetic activity, effectively rescuing the function of dental pulp stem cells (DPSCs) under oxidative stress by restoring mitochondrial homeostasis.
View Article and Find Full Text PDFStem Cells Int
August 2025
Department of Oral and Maxillofacial Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan.
Tumor surgery or trauma in the maxillofacial region may cause injuries to peripheral nerves, such as facial nerves. The gold standard of treatment for peripheral nerve injury has been autologous nerve grafting. Since new peripheral nerve regeneration technologies are required, three-dimensional (3D) structures fabricated only from cells by using Bio 3D printers are attracting attention.
View Article and Find Full Text PDFNucleosides Nucleotides Nucleic Acids
September 2025
Center for Molecular Biophysics, CNRS Orleans, Orleans, France.
Heart failure (HF) is not a disease but a combination of signs and symptoms caused by the failure of the heart to pump blood to support the circulatory system at rest or during activity. HF is the potential end stage of all heart diseases in which cardiomyopathies are a diverse group of cardiac disorders with distinct phenotypes, depending on the protein and pathways affected. Cardiomyopathies represent major causes of morbidity and mortality at all ages in humans in which hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM), are the most common.
View Article and Find Full Text PDFRegen Med
August 2025
Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA.
Regenerative endodontics has emerged as a promising and recognized approach for treating necrotic young permanent teeth. Based on advanced tissue engineering strategies, regenerative therapies, such as cell homing and cell-based transplantation, have been extensively investigated to achieve functional regeneration of the injured pulp-dentin complex. Injectable, thermo-responsive, and tailor-made 3D-printed scaffolds that carry antimicrobial, anti-inflammatory, and other signaling cues provide a powerful means of delivering drugs precisely within the narrow, branching anatomy of the root canal.
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