Molecular responses to hypoxia in tumor cells

<p>Abstract</p> <p>Highly aggressive, rapidly growing tumors are exposed to hypoxia or even anoxia which occurs as a consequence of inadequate blood supply. Both hypoxia and consecutive hypoxia/reoxygenation exert a variety of influences on tumor cell biology. Among these are activ...

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Main Authors: Ibrahim Saleh M, Kunz Manfred
Format: Article
Language:English
Published: BMC 2003-04-01
Series:Molecular Cancer
Subjects:
Online Access:http://www.molecular-cancer.com/content/2/1/23
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author Ibrahim Saleh M
Kunz Manfred
author_facet Ibrahim Saleh M
Kunz Manfred
author_sort Ibrahim Saleh M
collection DOAJ
description <p>Abstract</p> <p>Highly aggressive, rapidly growing tumors are exposed to hypoxia or even anoxia which occurs as a consequence of inadequate blood supply. Both hypoxia and consecutive hypoxia/reoxygenation exert a variety of influences on tumor cell biology. Among these are activation of certain signal transduction pathways and gene regulatory mechanisms, induction of selection processes for gene mutations, tumor cell apoptosis and tumor angiogenesis. Most of these mechanisms contribute to tumor progression. Therefore, tissue hypoxia has been regarded as a central factor for tumor aggressiveness and metastasis. In this review, we summarize the current knowledge about the molecular mechanisms induced by tumor cell hypoxia with a special emphasis on intracellular signal transduction, gene regulation, angiogenesis and apoptosis. Interfering with these pathways might open perspectives for future innovative treatment of highly aggressive metastasizing tumors.</p>
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spelling doaj.art-7c0b9d144d8f46ed93c88407b43780d12022-12-22T01:20:49ZengBMCMolecular Cancer1476-45982003-04-01212310.1186/1476-4598-2-23Molecular responses to hypoxia in tumor cellsIbrahim Saleh MKunz Manfred<p>Abstract</p> <p>Highly aggressive, rapidly growing tumors are exposed to hypoxia or even anoxia which occurs as a consequence of inadequate blood supply. Both hypoxia and consecutive hypoxia/reoxygenation exert a variety of influences on tumor cell biology. Among these are activation of certain signal transduction pathways and gene regulatory mechanisms, induction of selection processes for gene mutations, tumor cell apoptosis and tumor angiogenesis. Most of these mechanisms contribute to tumor progression. Therefore, tissue hypoxia has been regarded as a central factor for tumor aggressiveness and metastasis. In this review, we summarize the current knowledge about the molecular mechanisms induced by tumor cell hypoxia with a special emphasis on intracellular signal transduction, gene regulation, angiogenesis and apoptosis. Interfering with these pathways might open perspectives for future innovative treatment of highly aggressive metastasizing tumors.</p>http://www.molecular-cancer.com/content/2/1/23Hypoxiagene regulationsignal transductionangiogenesisapoptosis
spellingShingle Ibrahim Saleh M
Kunz Manfred
Molecular responses to hypoxia in tumor cells
Molecular Cancer
Hypoxia
gene regulation
signal transduction
angiogenesis
apoptosis
title Molecular responses to hypoxia in tumor cells
title_full Molecular responses to hypoxia in tumor cells
title_fullStr Molecular responses to hypoxia in tumor cells
title_full_unstemmed Molecular responses to hypoxia in tumor cells
title_short Molecular responses to hypoxia in tumor cells
title_sort molecular responses to hypoxia in tumor cells
topic Hypoxia
gene regulation
signal transduction
angiogenesis
apoptosis
url http://www.molecular-cancer.com/content/2/1/23
work_keys_str_mv AT ibrahimsalehm molecularresponsestohypoxiaintumorcells
AT kunzmanfred molecularresponsestohypoxiaintumorcells