Sortilin-related receptor 1 (SorL1) deficiency is a genetic predisposition to familial Alzheimer's disease (AD), but its pathology is poorly understood. In SorL1-null rats, a disorder of the global endosome-lysosome network (ELN) is found in hippocampal neurons. Deletion of amyloid precursor protein (APP) in SorL1-null rats could not completely rescue the neuronal abnormalities in the ELN of the hippocampus and the impairment of spatial memory in SorL1-null young rats.
View Article and Find Full Text PDFThe common pathogenesis of Alzheimer's disease (AD) and Parkinson's disease (PD) has been supported by biochemical, genetic and molecular evidence. Mitochondrial dysfunction is considered to be the common pathology in early AD and PD. The physiological regulation of APP and α-synuclein on mitochondria remains unclear, let alone whether they share common regulatory mechanisms affecting the development of neurodegenerative diseases.
View Article and Find Full Text PDFSubsequently to the publication of this paper, an interested reader drew to the authors' attention that Figs. 2 and 3, showing the results from experiments designed to assess the viability of bone‑derived mesenchymal stem cells culture with or without nerve growth factors (NGFs) via fluorescein diacetate/propidium iodide or H&E staining respectively, contained apparently duplicated data panels within the figures. After having examined their original data, the authors have realized that these figures were inadvertently assembled incorrectly, and that there were also misassembled data panels in Fig.
View Article and Find Full Text PDFCell Physiol Biochem
January 2019
Background/aims: Current drug therapies for osteoarthritis (OA) are not practical because of the cytotoxicity and severe side-effects associated with most of them. Artemisinin (ART), an antimalarial agent, is well known for its safety and selectivity to kill injured cells. Based on its anti-inflammatory activity and role in the inhibition of OA-associated Wnt/β-catenin signaling pathway, which is crucial in the pathogenesis of OA, we hypothesized that ART might have an effect on OA.
View Article and Find Full Text PDFRecent studies have shown that andrographolide (AP) has the potential to be developed as a drug for therapy for osteoarthritis (OA). However, the role of AP in attenuating the progression of OA is still unknown. We hypothesized that its therapeutic effect may be associated with its antioxidant potential.
View Article and Find Full Text PDFMesenchymal stem cell (MSC)‑based therapy has been commonly used in cartilage reconstruction, due to its self‑renewing ability and multi‑differentiation potential. Nerve growth factor (NGF) from cobra venom has been reported to regulate chondrogenesis of bone‑derived MSCs (BMSCs) and chondrocyte metabolism. Therefore, the present study aimed to determine whether other sources of NGF behave in the same manner as NGF from natural venom.
View Article and Find Full Text PDFAutologous chondrocyte implantation (ACI) has emerged as a new approach to cartilage repair through the use of harvested chondrocytes. But the expansion of the chondrocytes from the donor tissue in vitro is restricted by limited cell numbers and dedifferentiation of chondrocytes. In this study, we used four types of hydrogels including agarose, alginate, Matrigel, and collagen type I hydrogels to serve as cell substrates and investigated the effect on proliferation and phenotype maintenance of chondrocytes.
View Article and Find Full Text PDFAutologous chondrocyte implantation (ACI) is promising strategy for cartilage repair. However, chondrocyte phenotype is easily lost when expanded in vitro which defined as "dedifferentiation." To ensure successful therapy, an effective pro-chondrogenic agent is necessary to overcome the obstacle of limited cell numbers in the restoration process, and dedifferentiation is a prerequisite.
View Article and Find Full Text PDF© LitMetric 2025. All rights reserved.