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Interpreting crosstalk between TNF-alpha and NGF: potential implications for disease.
Yoshinori Takei1, Ronald Laskey
1Medical Research Council (MRC) Cancer Cell Unit, Hutchison/MRC Research Centre, Hills Road Cambridge CB2 0XZ, UK. yt215@cam.ac.uk
Trends in Molecular Medicine
|August 12, 2008
Summary
Tumour necrosis factor-alpha (TNF-alpha) and nerve growth factor (NGF) signaling pathways interact. Dysregulation of this crosstalk may contribute to diseases like cancer and Alzheimer's disease.
Area of Science:
- Neuroscience
- Immunology
- Cell Biology
Background:
- Tumour necrosis factor-alpha (TNF-alpha) is a proinflammatory cytokine.
- Nerve growth factor (NGF) is a neurotrophin promoting neural cell survival, differentiation, and maturation.
- Emerging evidence suggests TNF-alpha influences neural cell fate in noninflammatory states, while NGF may maintain inflammation.
Purpose of the Study:
- To review recent reports on the crosstalk between NGF and TNF-alpha signaling.
- To propose a positive-feedback loop model for their expression.
- To discuss the role of disturbed crosstalk in diseases like cancer and Alzheimer's disease.
Main Methods:
- Literature review of recent scientific reports.
- Analysis of signaling pathways involved in NGF and TNF-alpha interactions.
- Hypothesizing a positive-feedback loop mechanism.
Main Results:
- Nerve growth factor (NGF) and Tumour necrosis factor-alpha (TNF-alpha) signaling pathways exhibit complex interactions.
- A positive-feedback loop between NGF and TNF-alpha expression is proposed.
- Disturbances in this crosstalk are implicated in pathological conditions.
Conclusions:
- The relationship between NGF and TNF-alpha signaling is intricate and bidirectional.
- Understanding this crosstalk is crucial for elucidating disease mechanisms.
- Targeting the NGF-TNF-alpha interaction may offer therapeutic strategies for neurodegenerative and oncological diseases.
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