Cell Death and Apoptosis

Abstract

Toxicants cause cell death via apoptosis, necrosis and apocrosis. The last decade of the twentieth century and the first decade of the new millennium witnessed over one million reports exploring the occurrence of apoptosis, its mechanisms, and therapeutic implications. Cooperative efforts of every compartment of the cell, as well as various micro and macromolecules, orchestrate this form of cell death. Apoptosis has captured the attention of scientists because retrospective analyses of the mechanisms of human disease show that apoptotic factors either contribute to disease development or, in large measure, account for it. Although apoptosis has been viewed as diametrically opposed to necrotic cell death, they share a number of key features in common. Apoptosis can be viewed as versatile and even malleable, whereas other forms of cell death are not; apoptosis signaling pathways are sharply defined but others are not. This chapter discusses the overall mechanistic frameworks that come under the influence of drugs, chemicals, and stressors, the initiation and progression of apoptosis during organ toxicity, and an up‐to‐date account of the morphological, biochemical, genetic and molecular events that characterize apoptosis. Emphasis has been placed upon insights from both in vivo and in vitro models. This chapter is intended to serve a resource that presents the current fundamentals of apoptosis and its scientific bases in this significant and rapidly evolving field.

Sustentabilidade: Logística Reversa E Responsabilidade Dos Detritos De Consumo

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