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Peptide YY and cancer: current findings and potential clinical applications
William W Tseng1, Carson D Liu
1Northwestern University Medical School, Chicago, Illinois 60611, USA.
Abstract:
Peptide YY (PYY) is a naturally occurring gut hormone with mostly inhibitory actions on multiple tissue targets. PYY has been identified in several carcinoid tumors and a decreased expression of PYY may be relevant to the development and progression of colon adenocarcinoma. Treatment with PYY decreases growth in pancreatic and breast tumors, most likely through a reduction in intracellular cAMP. In cancer patients, PYY may also improve malnutrition that results from iatrogenic causes or cachexia associated with advanced disease. PYY plays a significant role in multiple aspects of cancer from regulation of cell growth to potential therapeutic applications.
Insights
Peptide YY (PYY), a gut hormone, shows potential in cancer therapy by inhibiting tumor growth and improving patient nutrition. Its role in colon adenocarcinoma development and progression warrants further investigation.
Area of Science:
- Endocrinology
- Oncology
- Gastroenterology
Background:
- Peptide YY (PYY) is a gut hormone with inhibitory effects on various tissues.
- Altered PYY expression is implicated in colon adenocarcinoma development and progression.
- PYY influences tumor growth and patient nutritional status in cancer.
Purpose of the Study:
- To explore the multifaceted role of Peptide YY (PYY) in cancer.
- To investigate PYY's potential as a therapeutic agent in oncology.
- To understand PYY's impact on tumor growth and cancer-associated malnutrition.
Main Methods:
- Literature review on PYY's biological actions.
- Analysis of PYY expression in carcinoid tumors and colon adenocarcinoma.
- Review of studies on PYY's effects on tumor cell lines (pancreatic, breast) and cancer patients.
Main Results:
- PYY exhibits inhibitory actions on multiple tissue targets.
- Decreased PYY expression correlates with colon adenocarcinoma progression.
- PYY treatment reduced tumor growth in preclinical models, potentially via cAMP reduction.
- PYY may alleviate malnutrition in cancer patients.
Conclusions:
- Peptide YY (PYY) plays a significant role in cancer regulation.
- PYY demonstrates potential therapeutic applications in oncology.
- Further research into PYY's mechanisms and clinical utility is warranted.