We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Oxidative Protein Damage and Degradation in Lymphocytes from Patients Infected with Human Immunodeficiency Virus.
- Authors
Piedimonte, Giuseppe; Guetard, Denise; Magnani, Mauro; Corsi, Dario; Picerno, Isa; Spataro, Pasquale; Kramer, Laura; Montroni, Maria; Silvestri, Guido; Torres Roca, Javier F.; Montagnier, Luc
- Abstract
It has been proposed that oxidative stress is the common mediator of apoptotic cell death in AIDS. However, mechanistic relationships between oxidative damage and cell death are far from clear. It is reported here that the mitogenic activation of T lymphocytes from human immunodeficiency virus-positive subjects involves perturbation of redox balance, as indicated by the increase in hydroethydine intracellular oxidation and manganese superoxide dismutase adaptive induction. Principal molecular targets of oxidative injury are cellular proteins whose content in carbonyl groups increases together with a dramatic increase in degradation of newly synthesized proteins catalyzed by the ATP- and ubiquitin-dependent proteolytic system. The major consequence of this metabolic anomaly is the decrease in protein cell mass leading to cells that are smaller than normal at lethal mitosis.
- Publication
Journal of Infectious Diseases, 1997, Vol 176, Issue 3, p655
- ISSN
0022-1899
- Publication type
Article