This review explores the molecular and cellular pathways of soft tissue wound healing and the potential therapeutic use of the non-psychotropic cannabinoid cannabidiol (CBD), integrating findings from in vitro and in vivo preclinical studies as well as completed and ongoing clinical trials. It provides a comprehensive summary of the next steps in new CBD-based product development by analyzing current trends in dosage optimization, treatment guidance, delivery systems, ranging from liposomes, microemulsions to hydrogels. Additionally, the review examines clinical trials related to CBD formulations, delivery routes, and participant outcomes, offering a deeper understanding of the mechanisms guiding the activity beyond binding to cannabinoid 1 (CB1) and CB2 receptors. Furthermore, it highlights challenges and future perspectives in CBD formulation studies, presenting both currently studied approaches and emerging possibilities for innovation. Therapeutic potential of CBD has proved itself in the recent years and only regulatory issues and clarity in treatment and delivery routes will limit its widespread use in soft tissue healing.
Human growth hormone (GH) is crucial modulator of cellular metabolisms, including cell proliferation and organ development, by stimulating insulin-like growth factor-1 (IGF-1), which has various functions such as cell proliferation, tissue growth, survival, or neuroprotection. Therefore, GH is implicated as a critical player in the cell and can enhance neurogenesis and provide neuroprotection during the treatment of neurological diseases such as Parkinson's disease (PD). In this study, the neuroprotective role of GH was investigated in rotenone-induced PD models for the first time. Both SH-SY5Y and SK-N-AS neuroblastoma cells were exposed to rotenone to mimic PD pathogenesis as stated in previous studies. Our data demonstrated that overexpression of GH led to the resistance of the SH-SY5Y and SK-N-AS cell lines to rotenone treatment. The levels of ER stress markers, CHOP, PERK, XBP-1, and ATF6, were higher in wt cells than GH+ SH-SY5Y cells. However, the level of autophagy markers LC3 increased and the levels of reactive oxygen species (ROS) decreased with the overexpression of GH. Furthermore, while rotenone significantly increased the SubG1 population in the cell cycle of SH-SY5Y wt cells, there was a minor alteration in GH+ cell population. Concomitantly, the levels of the proapoptotic marker, cleaved-PARP, and positive staining of Annexin V in SH-SY5Y wt cells were higher after rotenone treatment. Together, these results revealed that overexpression of GH enhanced the autophagy response by triggering the ER stress of SH-SY5Y cells to rotenone exposure and showed a neuroprotective effect in vitro PD models.
24 November 2025 in Systems Microbiology and Biomanufacturing
Hydrogels are widely investigated as tissue engineering scaffolds due to their structural similarity to the extracellular matrix and their ability to support cell growth and controlled drug delivery. In this study, levan‐based microgels were developed as injectable scaffolds capable of filling amorphous and hard‐to‐reach soft tissue defects while enabling controlled release of cannabidiol (CBD). A cytocompatible and immuno‐neutral levan hydrogel with a porous architecture and high water uptake was successfully synthesized. The physicochemical, rheological, and biological properties of the hydrogel were systematically evaluated in different physical forms (oven‐dried, lyophilized, bulk, ground, and injectable). The hydrogel exhibited a high swelling capacity (approximately 15–18 g g −1 ) and a well‐developed porous structure throughout both surface and cross‐sectional regions. Cytocompatibility was confirmed with adipocytes, gingival mesenchymal stem cells (GMSC), human osteoblasts (HOB), and human fibroblasts (PCS‐201‐012). ELISA results demonstrated stable interleukin‐6 (IL‐6) and tumor necrosis factor‐α (TNF‐α) secretion levels in GMSC cultures, indicating an immuno‐neutral response. Furthermore, the hydrogel enabled a low and sustained release of CBD. Collectively, these findings highlight the potential of levan‐based hydrogels as injectable, wound‐healing‐oriented drug delivery systems for soft tissue engineering applications.
Extensive research on amphibians has focused on areas such as morphological and molecular taxonomy, ecology, embryology, and molecular phylogeny. However, the structure and biotechnological potential of egg jelly—which plays a protective and nutritive role for embryos—have remained largely unexplored. This study presents, for the first time, a detailed physicochemical analysis of the egg jelly of Pelophylax ridibundus, an amphibian species, using Fourier Transform Infrared Spectroscopy, Thermogravimetric Analyzer, X-ray Diffraction, and elemental analysis. The carbohydrate content was determined via High-Performance Liquid Chromatography analysis, and the protein content was identified using Liquid Chromatography-Tandem Mass Spectrometry analysis. Additionally, it was revealed that this jelly exhibits a significant cytotoxic effect on melanoma cells (viability < 30%) while showing no cytotoxicity on healthy dermal fibroblast cells (viability > 70%). Consequently, this non-toxic, biologically derived, and cultivable material is proposed as a promising candidate for cancer applications, paving the way for further research in the field.