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Regulatory T cells (Tregs; pronounced 'tee-regs'), a type of immune cell generally associated with controlling inflammation, directly trigger stem cells in the skin to promote healthy hair growth, researchers have discovered. Without these immune cells as partners, the researchers found, the stem cells cannot regenerate hair follicles, leading to baldness.

While studying the underpinnings of multiple sclerosis, investigators came across important clues for how to treat a very different disease: cancer. Researchers describe an antibody that can precisely target regulatory T cells which in turn unleashes the immune system to kill cancer cells. The team reports that the antibody decreased tumor growth in models of melanoma, glioblastoma and colorectal carcinoma, making it an attractive candidate for cancer immunotherapy.

The molecule CD103 is key to the long-term residence of T cells in the skin and to their potent anti-tumor response against melanoma

A new study describes new method to transform immune cells, while inside the body, into leukemia-fighting powerhouses.