Vitamin D, Immune Cells, and Melanoma: Unpad Researchers Map the Connection
Melanoma, an aggressive form of skin cancer, poses a significant challenge in Indonesia, particularly in acral and mucosal types, which are more common among Asian populations. A team from Universitas Padjadjaran, led by Dr. Hermin Aminah Usman, investigated two key biological markers — the Vitamin D Receptor (VDR) and CD8+ T-lymphocytes — to understand their relationship with melanoma invasion depth.
Analyzing patient tumor samples, the researchers quantified VDR expression and the density of CD8+ immune cells, then correlated these with the tumor’s Breslow thickness (a measure of how deep the cancer has penetrated the skin). Their statistical analysis revealed that higher VDR expression was associated with shallower tumors, while increased CD8+ infiltration correlated with stronger immune defense against tumor spread.
This suggests a potential dual protective pathway: vitamin D signaling may enhance immune surveillance, while cytotoxic T cells directly attack cancerous cells. The findings support considering vitamin D optimization and immune modulation as part of melanoma management strategies.
For Indonesia, where sunlight is abundant yet vitamin D deficiency is surprisingly common, the results carry both public health and clinical implications — calling for awareness campaigns and potential supplementation programs to strengthen cancer defenses.