Related Experiment Videos
Modulation of growth and of morphological characteristics in glioma cells by nerve growth factor and glia maturation
Abstract:
Anaplastic glioma T9 cells were treated with either nerve growth factor (NGF) or glia maturation factor (GMF) or both. It was found that, when T9 cells were treated with these factors in a chemically defined medium, both NGF and GMF induced characteristic changes of cell morphology and growth pattern. Several differences in the effects of NGF and GMF were noted. NGF retarded growth rate, whereas GMF did not. The cells treated with NGF were characterized by a flattened extended cytoplasm with numerous protruding processes. The cell masses were somatically connected by cell bridges. GMF, on the other hand, produced slender cells with long, branching processes forming an interconnecting cell net. Concomitant administration of NGF and GMF retarded cell growth as was demonstrated with NGF alone and induced morphological changes predominantly attributable to GMF. The maximal effect of either NGF or GMF or both was attained after 4 days of treatment. A withdrawal of the factors from the medium following various periods of treatment revealed that the effects of GMF were readily reversible while morphological changes induced by NGF persisted in its absence.
Insights
Nerve growth factor (NGF) and glia maturation factor (GMF) alter anaplastic glioma T9 cell morphology and growth. NGF slowed growth and induced persistent changes, while GMF did not affect growth and its effects were reversible.
Area of Science:
- Neuroscience
- Cell Biology
- Oncology
Background:
- Anaplastic glioma is an aggressive brain tumor.
- Understanding the cellular mechanisms of glioma growth is crucial for developing targeted therapies.
- Growth factors play significant roles in cell development and cancer progression.
Purpose of the Study:
- To investigate the effects of nerve growth factor (NGF) and glia maturation factor (GMF) on anaplastic glioma T9 cells.
- To compare the distinct cellular responses induced by NGF and GMF.
- To assess the reversibility of factor-induced changes in glioma cells.
Main Methods:
- Anaplastic glioma T9 cells were cultured in a chemically defined medium.
- Cells were treated with NGF, GMF, or a combination of both factors.
- Cell morphology, growth patterns, and the reversibility of induced changes were analyzed over time.
Main Results:
- Both NGF and GMF induced significant morphological and growth pattern changes in T9 cells.
- NGF treatment retarded cell growth and resulted in flattened cells with protruding processes, forming cell bridges.
- GMF treatment produced slender cells with long processes forming a net-like structure; its effects were reversible, unlike NGF-induced changes.
Conclusions:
- NGF and GMF differentially regulate anaplastic glioma cell behavior.
- NGF exhibits a more persistent influence on cell morphology compared to GMF.
- The distinct effects of NGF and GMF offer potential avenues for therapeutic strategies targeting glioma growth and morphology.