Immune Cell Interaction Diagram: Treg, CD8, and Cytokines Regulating a Healthy Cell #1576750 (License: Personal Use)

This diagram illustrates key immune mechanisms: orange Treg (regulatory T) cells release cytokines (green dots) to dampen immune activation, while blue CD8+ cytotoxic T cells monitor for infection or malignancy. The large teal healthy cell displays surface markers (pink circles) and a nucleus, indicating normal function under immune surveillance and regulation. The interaction highlights immune homeostasis and self-tolerance.

Used in educational medical content, immunology textbooks, or health websites explaining autoimmune regulation, cancer immunotherapy, or vaccine responses; targets students, clinicians, and patients seeking foundational immune system knowledge.