Related Experiment Video
Updated: Jun 23, 2026
10:10
Analyzing the Size, Shape, and Directionality of Networks of Coupled Astrocytes
Published on: October 4, 2018
Network analysis of human glaucomatous optic nerve head astrocytes
Tatiana Nikolskaya1, Yuri Nikolsky, Tatiana Serebryiskaya
1Vavilov Institute of General Genetics, Russian Academy of Sciences, 3 Gubkina Str, Moscow, Russia.
BMC Medical Genomics
|May 12, 2009
Summary
Glaucoma triggers reactive astrocytes, causing neurotoxicity. This study identifies key molecular networks and transcription factors regulating this process, offering potential therapeutic targets for cell-based treatments.
Area of Science:
- Neuroscience
- Ophthalmology
- Systems Biology
Background:
- Astrocyte activation is a hallmark of central nervous system injury.
- The dual role of astrocytes (neurotoxic or neuroprotective) and its regulation are not fully understood.
- Understanding astrocyte behavior is crucial for treating neurological conditions like glaucoma.
Purpose of the Study:
- To investigate the regulatory mechanisms behind astrocyte-mediated neurotoxicity in glaucoma.
- To analyze gene expression, proteomic, and genetic data in reactive optic nerve head astrocytes (ONHAs).
Main Methods:
- Conducted a systems-level functional analysis of molecular data from ONHAs.
- Reconstructed molecular interaction networks involved in glaucoma.
- Integrated genetic, expression, and proteomic data into a disease pathology network.
Main Results:
- Identified multi-domain biological networks controlling ONHA activation.
- Discovered synergistic action of transcription factors (AP-1, vitamin D receptor, NF-κB) in activating key pathways.
- Found over two-thirds of glaucoma-associated genes interconnected within a single epistatic network.
Conclusions:
- Highlighted critical biological network modules regulating neurotoxicity in reactive astrocytes in glaucoma.
- Proposed potential therapeutic targets for cell-based interventions in glaucoma treatment.
Related Concept Videos
01:30Neuron Structure
Neurons are the main type of cell in the nervous system that generate and transmit electrochemical signals. They primarily communicate with each other using neurotransmitters at specific junctions called synapses. Neurons come in many shapes that often relate to their function, but most share three main structures: an axon and dendrites that extend out from a cell body.
Structure and Function of Neurons
The neuronal cell body—the soma— houses the nucleus and organelles vital to cellular...
Structure and Function of Neurons
The neuronal cell body—the soma— houses the nucleus and organelles vital to cellular...
01:25Glaucoma: Overview
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...