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Published on: July 30, 2014
AIP: A double agent? The tissue-specific role of AIP as a tumour suppressor or as an oncogene
Oliver Haworth1,2, Márta Korbonits3
1Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
Abstract:
Aryl hydrocarbon receptor-interacting protein (AIP) is a co-chaperone to heat shock proteins and nuclear receptors. Loss-of-function heterozygote germline mutations lead to predisposition to growth hormone- or prolactin-secreting pituitary typically presenting in childhood. Based on these data AIP behaves as a tumour suppressor. However, previously in diffuse large B cell lymphoma and now in this new manuscript in the British Journal of Cancer on colorectal cancer, it seems that high expression of AIP is associated with tumour development and more aggressive disease. AIP, therefore, joins a distinguished group of proteins that can behave both as a tumour suppressor and as an oncogene.
Insights
Aryl hydrocarbon receptor-interacting protein (AIP) acts as a tumor suppressor in pituitary tumors but as an oncogene in colorectal cancer, highlighting its dual role in cancer development.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Aryl hydrocarbon receptor-interacting protein (AIP) functions as a co-chaperone for heat shock proteins and nuclear receptors.
- Germline mutations in AIP are linked to hereditary predisposition to pituitary tumors, suggesting a tumor suppressor role.
Discussion:
- High expression of AIP correlates with tumor development and aggressive disease in colorectal cancer.
- Previous studies indicated a similar oncogenic role for AIP in diffuse large B-cell lymphoma.
- This suggests a context-dependent function of AIP in tumorigenesis.
Key Insights:
- AIP exhibits paradoxical roles, acting as a tumor suppressor in some contexts and an oncogene in others.
- The dual function of AIP challenges its simple classification and necessitates further investigation into its regulatory mechanisms.
- Understanding AIP's opposing roles is crucial for developing targeted cancer therapies.
Outlook:
- Further research is needed to elucidate the molecular mechanisms underlying AIP's dual function.
- Investigating AIP's role in other cancer types may reveal broader implications for its oncogenic or tumor-suppressive activities.
- Targeting AIP or its pathways could offer novel therapeutic strategies for specific cancers.
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