We investigated whether a continuous supply of glial cell line-derived neurotrophic factor (GDNF) via encapsulated genetically modified cells can promote survival and fiber outgrowth from xenotransplanted human dopaminergic neurons. Cells genetically engineered to continuously secrete GDNF were confined in hollow fiber-based macrocapsules. Each hemiparkinsonian rat received either a single C2C12-hGDNF capsule (n=8) or a C2C12-control capsule (n=8) concomitantly with human embryonic ventral mesencephalic cell suspension transplants. Our results show that fiber outgrowth in the area between the capsule and the graft is more extensive in rats with GDNF-releasing capsules than in rats with control capsules. We suggest that continuous and safe delivery of GDNF to the brain could be a potential way to optimize neural transplantation as a therapy for Parkinson's disease.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.brainresbull.2005.04.009 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Targeting Nerve Fiber Outgrowth Inhibition After Experimental Spinal Cord Injury: A Systematic Review and Meta-analysis of Chondroitinase ABC.
Neurorehabil Neural Repair
January 2025
Department of Neurosurgery, Faculty of Medicine, Medical Center-University of Freiburg, Freiburg, Germany.
Background: Spinal cord injury (SCI) can impair motor, sensory, and autonomic function. The formation of the glial scar comprises protective as well as inhibitory neurite outgrowth properties operated by the deposition of chondroitin sulfate proteoglycans (CSPG). Chondroitinase ABC (ChABC) can degrade CSPG and foster neuroaxonal plasticity as a therapeutic approach to restore locomotor function after SCI.
View Article and Find Full Text PDFA Versatile Skin-Derived Extracellular Matrix Hydrogel-Based Platform to Investigate the Function of a Mechanically Isolated Adipose Tissue Stromal Vascular Fraction.
Biomolecules
November 2024
Department of Pathology and Medical Biology, University Medical Centre Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
To accelerate cutaneous wound healing and prevent scarring, regenerative approaches such as injecting a mechanically derived tissue stromal vascular fraction (tSVF) are currently under clinical and laboratory investigations. The aim of our study was to investigate a platform to assess the interaction between skin-derived extracellular matrix (ECM) hydrogels and tSVF and their effects on their microenvironment in the first ten days of culture. A tSVF mixed with ECM hydrogel was cultured for ten days.
View Article and Find Full Text PDFTargeting Perineural Invasion in Pancreatic Cancer.
Cancers (Basel)
December 2024
Department of Medical Oncology, Lab of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, VU University Medical Center (VUmc), 1007 MB Amsterdam, The Netherlands.
Pancreatic cancer is an aggressive tumor with dismal prognosis. Neural invasion is one of the pathological hallmarks of pancreatic cancer. Peripheral nerves can modulate the phenotype and behavior of the malignant cells, as well as of different components of the tumor microenvironment, and thus affect tumor growth and metastasis.
View Article and Find Full Text PDFLong-range directional growth of neurites induced by magnetic forces.
Acta Biomater
January 2025
School of Life Sciences, Keele University, Staffordshire, UK. Electronic address:
The ability to control the growth and orientation of neurites over long distances has significant implications for regenerative therapies and the development of physiologically relevant brain tissue models. In this study, the forces generated on magnetic nanoparticles internalised within intracellular endosomes are used to direct the orientation of neuronal outgrowth in cell cultures. Following differentiation, neurite orientation was observed after 3 days application of magnetic forces to human neuroblastoma (SH-SY5Y) cells, and after 4 days application to rat cortical primary neurons.
View Article and Find Full Text PDFRational Fabrication of Functionally-Graded Surfaces for Biological and Biomedical Applications.
Acc Mater Res
December 2024
The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States.
As a ubiquitous feature of the biological world, gradation, in either composition or structure, is essential to many functions and processes. Taking protein gradation as an example, it plays a pivotal role in the development and evolution of human bodies, including stimulation and direction of the outgrowth of peripheral nerves in a developing fetus. It is also critically involved in wound healing by attracting and guiding immune cells to the site of injury or infection.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!