f0230921

f0230921

Programmed cell death in immune system, illustration. The protein PD-1 (programmed cell death protein 1, red) is seen extending from the surface membrane of a T-cell (across bottom), interacting with the ligand protein PD-L1 (orange) from an antigen presenting cell (APC). Although the T-cell has been activated through the interaction at left of a T-cell receptor (blue) and a MHC protein (purple), PD-1 regulates and reduces this activation. It acts to slow down the effects of T-cells. (Photo by: SCIENCE PHOTO LIBRARY via AP Images)

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Contributor: RF - Science Photo

18337807550609
Royalty-Free (RF)
December 03, 2018 05:25:54 PM
December 03, 2018 10:46:05 PM
JUAN GAERTNER/SCIENCE PHOTO LIBRARY
SCIPHO
ASSOCIATED PRESS
Royalty-free photography. Special rates may apply. Please contact your AP representative with questions.
6827 x 5120 18.26 MB
Cell biology, Biology, Science
ACCESSORY, CELL, ADAPTIVE, IMMUNITY, ANTIGEN, PRESENTATION, ANTIGEN-PRESENTING, CELLS, CANCER, PREVENTION, THERAPY, CO-STIMULATION, CYTOTOXIC, T, DENDRITIC, DISEASE, DOWN-REGULATION, HELPER, IMMUNE, SYSTEM, KILLER, LYMPHOCYTE, MAJOR, HISTOCOMPATIBILITY, COMPLEX, MEDICINE, MHC, CLASS, MHC-COMPLEX, MOLECULES, NATURAL, PD-L1, PEPTIDE, PROGRAMMED, DEATH, PROTEIN, RECEPTOR, SIGNAL, CASCADE, TRANSDUCTION, WHITE, BLOOD, BIOCHEMICAL, IMMUNOLOGICAL, BIOLOGICAL, NO-ONE, NOBODY, MEMBRANE, RECEPTORHUMAN, BODY, INTERACTING, BINDINGBIOCHEMISTRY, IMMUNOLOGY, BIOLOGY, MOLECULAR, ARTWORK, ILLUSTRATION
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