Vitamin D: Promises on the Horizon and Challenges Ahead for Fighting Pancreatic Cancer

Area of Science:

• Oncology
• Endocrinology
• Immunology

Background:

• Pancreatic cancer presents a poor prognosis with increasing incidence, often linked to a desmoplastic and immunosuppressive tumor microenvironment.
• Resistance to current therapies necessitates novel intervention strategies for pancreatic cancer.
• Vitamin D, beyond its role in calcium homeostasis, is investigated for its potential in cancer prevention and treatment.

Purpose of the Study:

• To explore the role of vitamin D and vitamin D receptor (VDR) signaling in pancreatic cancer.
• To assess the potential of vitamin D as an adjunct therapy for pancreatic cancer.
• To identify challenges and opportunities for vitamin D intervention in pancreatic cancer.

Main Methods:

• Review of existing ecological, observational, and randomized controlled trial data on vitamin D and pancreatic cancer.
• Analysis of recent advances in understanding vitamin D/VDR signaling in cancer biology.
• Consideration of vitamin D's interaction with immunotherapy.

Main Results:

• Evidence suggests vitamin D may have beneficial effects on pancreatic cancer risk, survival, and mortality, though controversies persist.
• Vitamin D/VDR signaling influences stromal reprogramming, the microbiome, and immune responses relevant to cancer.
• Vitamin D offers potential as an adjunct to pancreatic cancer therapies, including checkpoint immunotherapy.

Conclusions:

• Vitamin D holds significant promise for reducing pancreatic cancer risk and improving patient outcomes.
• Further randomized controlled trials are crucial to confirm vitamin D's impact on pancreatic cancer risk and survival.
• Optimizing dosage, timing, and understanding the specific role of vitamin D/VDR signaling across pancreatic cancer stages are key challenges.