ArticleIn vitro cellular & developmental biology. Animal1999
A novel human astrocyte cell line (A735) with astrocyte-specific neurotransmitter function.
Article in In vitro cellular & developmental biology. Animal, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 17 citations in OpenAlex.
- Astrocytes in Primary Familial Brain Calcification (PFBC): Emphasis on the Importance of Induced Pluripotent Stem Cell-Derived Human Astrocyte Models.Advances in experimental medicine and biology · 2025Review
- Astrocytes and microglia in neurodegenerative diseases: Lessons from human in vitro models.Progress in neurobiology · 2021Review
- The Characterization of a Subependymal Giant Astrocytoma-Like Cell Line from Murine Astrocyte with mTORC1 Hyperactivation.International journal of molecular sciences · 2021Article
- Review of Design Considerations for Brain-on-a-Chip Models.Micromachines · 2021Review
- Modeling blood-brain barrier pathology in cerebrovascular disease in vitro: current and future paradigms.Fluids and barriers of the CNS · 2020Review
- Viral infections and multiple sclerosis.Drug discovery today. Disease models · 2020Review
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Studies of brain cell function and physiology are hampered by the limited availability of immortal human brain-derived cell lines, as a result of the technical difficulties encountered in establishing immortal human cells in culture. In this study, we demonstrate the application of recombinant DNA vectors expressing SV40 T antigen for the development of immortal human cell cultures, with morphological, growth, and functional properties of astrocytes. Primary human astrocytes were transfected with the SV40 T antigen expression vectors, pSV3neo or p735.6, and cultures were established with an extended lifespan. One of these cultures gave rise to an immortal cell line, designated A735. All the human SV40-derived lines retained morphological features and growth properties of type 1 astrocytes. Immunohistochemical studies and Western blot analysis of the intermediate filament proteins and glutamine synthetase demonstrated a differentiated but immature astrocyte phenotype. Transport of gamma-amino butyric acid and glutamate were examined and found to be by a glial-specific mechanism, consistent with the cell lines' retaining aspects of normal glial function. We conclude that methods based on the use of SV40 T antigen can successfully immortalize human astrocytes, retaining key astrocyte functions, but T antigen-induced proliferation appeared to interfere with expression of glial fibrillary acidic protein. We believe A735 is the first documented nontumor-derived human glial cell line which is immortal.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.