Will imaging of apoptosis play a role in clinical care? A tale of mice and men

Apoptosis : an International Journal on Programmed Cell Death
Francis G Blankenberg, H W Strauss

Abstract

Programmed cell death (apoptosis) plays a role in the pathophysiology of many diseases and in the outcome of treatment. Apoptosis is the likely mechanism behind the cytoreductive effects of standard chemotherapeutic and radiation treatments, rejection of organ transplants, cellular damage in collagen vascular disorders, and delayed cell death due to hypoxic-ischemic injury in myocardial infarction and neonatal hypoxic ischemic injury. Observations about the role of apoptosis have fueled the development of novel agents and treatment strategies specifically aimed at inducing or inhibiting apoptosis. Despite these research developments there are no clinical entities where specific measures of apoptosis are used in either diagnosis or patient management. Part of the difficulty in bridging the gap between the basic science understanding of apoptosis and the clinical application of this information is the lack of a sensitive marker to monitor programmed cell death in association with disease progression or regression. Technetium-99m labeled annexin V localizes at sites of apoptosis in-vivo, due to its nanomolar affinity for membrane bound phosphatidylserine. Radiolabeled annexin V imaging permits identification of the site and extent...Continue Reading

Citations

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