Therapeutic Approaches to Target Cancer Stem Cells

The clinical relevance of cancer stem cells (CSC) remains a major challenge for current cancer therapies, but preliminary findings indicate that specific targeting may be possible. Recent studies have shown that these tumor subpopulations promote tumor angiogenesis through the increased production o...

Full description

Bibliographic Details
Main Authors: Kalet Leon, Arlhee Diaz
Format: Article
Language:English
Published: MDPI AG 2011-08-01
Series:Cancers
Subjects:
Online Access:http://www.mdpi.com/2072-6694/3/3/3331/
_version_ 1797726565258231808
author Kalet Leon
Arlhee Diaz
author_facet Kalet Leon
Arlhee Diaz
author_sort Kalet Leon
collection DOAJ
description The clinical relevance of cancer stem cells (CSC) remains a major challenge for current cancer therapies, but preliminary findings indicate that specific targeting may be possible. Recent studies have shown that these tumor subpopulations promote tumor angiogenesis through the increased production of VEGF, whereas the VEGF neutralizing antibody bevacizumab specifically inhibits CSC growth. Moreover, nimotuzumab, a monoclonal antibody against the epidermal growth factor receptor (EGFR) with a potent antiangiogenic activity, has been shown by our group to reduce the frequency of CSC-like subpopulations in mouse models of brain tumors when combined with ionizing radiation. These studies and subsequent reports from other groups support the relevance of approaches based on molecular-targeted therapies to selectively attack CSC. This review discusses the relevance of targeting both the EGFR and angiogenic pathways as valid approaches to this aim. We discuss the relevance of identifying better molecular markers to develop drug screening strategies that selectively target CSC.
first_indexed 2024-03-12T10:47:27Z
format Article
id doaj.art-3e7ed7ef68eb4d02ab9a65e95bf58da9
institution Directory Open Access Journal
issn 2072-6694
language English
last_indexed 2024-03-12T10:47:27Z
publishDate 2011-08-01
publisher MDPI AG
record_format Article
series Cancers
spelling doaj.art-3e7ed7ef68eb4d02ab9a65e95bf58da92023-09-02T07:23:11ZengMDPI AGCancers2072-66942011-08-01333331335210.3390/cancers3033331Therapeutic Approaches to Target Cancer Stem CellsKalet LeonArlhee DiazThe clinical relevance of cancer stem cells (CSC) remains a major challenge for current cancer therapies, but preliminary findings indicate that specific targeting may be possible. Recent studies have shown that these tumor subpopulations promote tumor angiogenesis through the increased production of VEGF, whereas the VEGF neutralizing antibody bevacizumab specifically inhibits CSC growth. Moreover, nimotuzumab, a monoclonal antibody against the epidermal growth factor receptor (EGFR) with a potent antiangiogenic activity, has been shown by our group to reduce the frequency of CSC-like subpopulations in mouse models of brain tumors when combined with ionizing radiation. These studies and subsequent reports from other groups support the relevance of approaches based on molecular-targeted therapies to selectively attack CSC. This review discusses the relevance of targeting both the EGFR and angiogenic pathways as valid approaches to this aim. We discuss the relevance of identifying better molecular markers to develop drug screening strategies that selectively target CSC.http://www.mdpi.com/2072-6694/3/3/3331/CSCCD133angiogenesisEGFR
spellingShingle Kalet Leon
Arlhee Diaz
Therapeutic Approaches to Target Cancer Stem Cells
Cancers
CSC
CD133
angiogenesis
EGFR
title Therapeutic Approaches to Target Cancer Stem Cells
title_full Therapeutic Approaches to Target Cancer Stem Cells
title_fullStr Therapeutic Approaches to Target Cancer Stem Cells
title_full_unstemmed Therapeutic Approaches to Target Cancer Stem Cells
title_short Therapeutic Approaches to Target Cancer Stem Cells
title_sort therapeutic approaches to target cancer stem cells
topic CSC
CD133
angiogenesis
EGFR
url http://www.mdpi.com/2072-6694/3/3/3331/
work_keys_str_mv AT kaletleon therapeuticapproachestotargetcancerstemcells
AT arlheediaz therapeuticapproachestotargetcancerstemcells