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Vol. 3. Issue 3.
Pages 245-257 (May - June 1997)
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Vol. 3. Issue 3.
Pages 245-257 (May - June 1997)
CONFERÊNCIA THOMÉ VILLAR
Open Access
Apoptose
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4379
Luis Delgado**
** Assistente Hospitalar, Serviço de Imunologia e Unidade de Imunoalergologia Hospital de S. João. Porto
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RESUMO

A apoptose, ou morte celular programada, é um processo ubiquitário de morte celular com características morfológicas próprias, cujos mecanismos básicos parecem estar preservados desde os invertebrados. Após a sua descrição em tumores, há mais de 20 anos, numerosos estudos têm implicado a apoptose em múltiplos aspectos do funciona-mento do sistema imunológico, da resposta inflamatória, no controle da replicação vírica e do crescimento tumoral. Sabe-se hoje, também, que o produto de diversos genes tumorais supressores e de oncogenes regulam a apoptose e que a eficácia de muitas terapêuticas anti-tumorais depende da sua indução nas células neoplásicas. O autor aborda os principais aspectos morfológicos e bioquímicos da apoptose e as suas implicações num melhor conhecimento da biologia celular e molecular do pulmão em patologia inflamatória, infecciosa e tumoral.

SUMMARY

Apoptosis, or programmed cell death, is a general and physiologic mechanism of cell death, with distinct morphological characteristics, whose basic mechanisms may be conserved in evolution since invertebrates. Since its description in tumours, over 20 years ago, a large number of investigations have implied apoptosis in several aspects of immunology, of the inflammatory response and in the control of viral replication and tumour growth. It is now well established that the products of several tumour supressor genes and oncogenes regulate a poptosis, and that the success of several anti-cancer treatments depend on apoptosis induction in tumour cells. The author addresses the basic morphological and biochemical characteristics of apoptosis and its impact in the understanding of the cellular and molecular biology of lung inflammatory, infectious and tumoural pathology.

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Copyright © 1997. Sociedade Portuguesa de Pneumologia/SPP
Pulmonology
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