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Updated: Jan 31, 2026

Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells
Published on: March 28, 2025
Regulation of Effector and Memory CD8 T Cell Differentiation by IL-2-A Balancing Act
Vandana Kalia1,2, Surojit Sarkar1,2,3,4
1Division of Hematology and Oncology, Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, United States.
Abstract:
Interleukin-2 (IL-2) regulates key aspects of CD8 T cell biology-signaling through distinct pathways IL-2 triggers critical metabolic and transcriptional changes that lead to a spectrum of physiological outcomes such as cell survival, proliferation, and effector differentiation. In addition to driving effector differentiation, IL-2 signals are also critical for formation of long-lived CD8 T cell memory. This review discusses a model of rheostatic control of CD8 T cell effector and memory differentiation by IL-2, wherein the timing, duration, dose, and source of IL-2 signals are considered in fine-tuning the balance of key transcriptional regulators of cell fate.
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