Apoptosis and in vivo models to study the molecules related to this phenomenon

ABSTRACT Apoptosis or programmed cell death is a physiological process, essential for eliminating cells in excess or that are no longer necessary to the organism, acting on tissue homeostasis, although the phenomenon is also involved in pathological conditions. Apoptosis promotes activation of bioch...

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Main Authors: Adriana Luchs, Claudia Pantaleão
Format: Article
Language:English
Published: Instituto Israelita de Ensino e Pesquisa Albert Einstein 2010-12-01
Series:Einstein (São Paulo)
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-45082010000400495&tlng=en
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author Adriana Luchs
Claudia Pantaleão
author_facet Adriana Luchs
Claudia Pantaleão
author_sort Adriana Luchs
collection DOAJ
description ABSTRACT Apoptosis or programmed cell death is a physiological process, essential for eliminating cells in excess or that are no longer necessary to the organism, acting on tissue homeostasis, although the phenomenon is also involved in pathological conditions. Apoptosis promotes activation of biochemical pathways inside cells called caspase pathway, of the proteins responsible for the cleavage of several cell substrates, leading to cell death. Antiapoptotic members of the Bcl-2 family (B cell CLL/lymphoma 2), that belong to the intrinsic route of the activation of caspases, such as Bcl-xL (extra-large B-cell lymphoma) and Bcl-w (Bcl-2-like 2), act predominantly to prevent that pro-apoptotic members, such as Bax (Bcl-2-associated X protein) and Bak (Bcl-2 relative bak) lead to cell death. Antiapoptotic molecules are considered potentially oncogenic. Murine models are known to be valuable systems for the experimental analysis of oncogenes in vivo, and for the identification of pharmacological targets for cancer and to assess antitumor therapies. Given the importance of tumorigenesis studies on the immune responses to cancer and the possibility of investigating the participation of antiapoptotic molecules in tumor progression in vivo, the development of new models may be platforms for studies on tumorigenesis, immune antitumor responses, investigation of the ectopic expression of antiapoptotic molecules and immunotherapies for tumors.
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spelling doaj.art-a1dbf89563fe4f6a9644ff8d98b7bd2b2022-12-21T21:23:18ZengInstituto Israelita de Ensino e Pesquisa Albert EinsteinEinstein (São Paulo)2317-63852010-12-018449549710.1590/s1679-45082010rb1685Apoptosis and in vivo models to study the molecules related to this phenomenonAdriana LuchsClaudia PantaleãoABSTRACT Apoptosis or programmed cell death is a physiological process, essential for eliminating cells in excess or that are no longer necessary to the organism, acting on tissue homeostasis, although the phenomenon is also involved in pathological conditions. Apoptosis promotes activation of biochemical pathways inside cells called caspase pathway, of the proteins responsible for the cleavage of several cell substrates, leading to cell death. Antiapoptotic members of the Bcl-2 family (B cell CLL/lymphoma 2), that belong to the intrinsic route of the activation of caspases, such as Bcl-xL (extra-large B-cell lymphoma) and Bcl-w (Bcl-2-like 2), act predominantly to prevent that pro-apoptotic members, such as Bax (Bcl-2-associated X protein) and Bak (Bcl-2 relative bak) lead to cell death. Antiapoptotic molecules are considered potentially oncogenic. Murine models are known to be valuable systems for the experimental analysis of oncogenes in vivo, and for the identification of pharmacological targets for cancer and to assess antitumor therapies. Given the importance of tumorigenesis studies on the immune responses to cancer and the possibility of investigating the participation of antiapoptotic molecules in tumor progression in vivo, the development of new models may be platforms for studies on tumorigenesis, immune antitumor responses, investigation of the ectopic expression of antiapoptotic molecules and immunotherapies for tumors.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-45082010000400495&tlng=enApoptosis/immunologyApoptosis/physiologyGenes, bcl-2/metabolismCaspasesCell deathNeoplasms
spellingShingle Adriana Luchs
Claudia Pantaleão
Apoptosis and in vivo models to study the molecules related to this phenomenon
Einstein (São Paulo)
Apoptosis/immunology
Apoptosis/physiology
Genes, bcl-2/metabolism
Caspases
Cell death
Neoplasms
title Apoptosis and in vivo models to study the molecules related to this phenomenon
title_full Apoptosis and in vivo models to study the molecules related to this phenomenon
title_fullStr Apoptosis and in vivo models to study the molecules related to this phenomenon
title_full_unstemmed Apoptosis and in vivo models to study the molecules related to this phenomenon
title_short Apoptosis and in vivo models to study the molecules related to this phenomenon
title_sort apoptosis and in vivo models to study the molecules related to this phenomenon
topic Apoptosis/immunology
Apoptosis/physiology
Genes, bcl-2/metabolism
Caspases
Cell death
Neoplasms
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-45082010000400495&tlng=en
work_keys_str_mv AT adrianaluchs apoptosisandinvivomodelstostudythemoleculesrelatedtothisphenomenon
AT claudiapantaleao apoptosisandinvivomodelstostudythemoleculesrelatedtothisphenomenon