The Tumor Microenvironment and Strategies to Improve Drug Distribution

The microenvironment within tumors is composed of a heterogeneous mixture of cells with varying levels of nutrients and oxygen. Differences in oxygen content result in survival or compensatory mechanisms within tumors that may favor a more malignant or lethal phenotype. Cells that are rapidly prolif...

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Main Authors: Jasdeep K Saggar, Man eYu, Qian eTan, Ian F Tannock
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-06-01
Series:Frontiers in Oncology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fonc.2013.00154/full
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author Jasdeep K Saggar
Man eYu
Qian eTan
Ian F Tannock
author_facet Jasdeep K Saggar
Man eYu
Qian eTan
Ian F Tannock
author_sort Jasdeep K Saggar
collection DOAJ
description The microenvironment within tumors is composed of a heterogeneous mixture of cells with varying levels of nutrients and oxygen. Differences in oxygen content result in survival or compensatory mechanisms within tumors that may favor a more malignant or lethal phenotype. Cells that are rapidly proliferating are richly nourished and preferentially located close to blood vessels. Chemotherapy can target and kill cells that are adjacent to the vasculature, while cells that reside farther away are often not exposed to adequate amounts of drug and may survive and repopulate following treatment. The characteristics of the tumor microenvironment can be manipulated in order to design more effective therapies. In this review, we describe important features of the tumor microenvironment and discuss strategies whereby drug distribution and activity may be improved.
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spelling doaj.art-2034442fa9b04b4397dc380e3530eaa72022-12-22T00:56:16ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2013-06-01310.3389/fonc.2013.0015455160The Tumor Microenvironment and Strategies to Improve Drug DistributionJasdeep K Saggar0Man eYu1Qian eTan2Ian F Tannock3University of Toronto, Princess Margaret Cancer Centre/Ontario Cancer InstituteUniversity of Toronto, Princess Margaret Cancer Centre/Ontario Cancer InstituteUniversity of Toronto, Princess Margaret Cancer Centre/Ontario Cancer InstitutePrincess Margaret Cancer Centre/Ontario Cancer InstituteThe microenvironment within tumors is composed of a heterogeneous mixture of cells with varying levels of nutrients and oxygen. Differences in oxygen content result in survival or compensatory mechanisms within tumors that may favor a more malignant or lethal phenotype. Cells that are rapidly proliferating are richly nourished and preferentially located close to blood vessels. Chemotherapy can target and kill cells that are adjacent to the vasculature, while cells that reside farther away are often not exposed to adequate amounts of drug and may survive and repopulate following treatment. The characteristics of the tumor microenvironment can be manipulated in order to design more effective therapies. In this review, we describe important features of the tumor microenvironment and discuss strategies whereby drug distribution and activity may be improved.http://journal.frontiersin.org/Journal/10.3389/fonc.2013.00154/fullTumor Microenvironmenthypoxia inducible factor (HIF)interstitial fluid pressureSolid tumordrug distributionpharmacodynamic markers
spellingShingle Jasdeep K Saggar
Man eYu
Qian eTan
Ian F Tannock
The Tumor Microenvironment and Strategies to Improve Drug Distribution
Frontiers in Oncology
Tumor Microenvironment
hypoxia inducible factor (HIF)
interstitial fluid pressure
Solid tumor
drug distribution
pharmacodynamic markers
title The Tumor Microenvironment and Strategies to Improve Drug Distribution
title_full The Tumor Microenvironment and Strategies to Improve Drug Distribution
title_fullStr The Tumor Microenvironment and Strategies to Improve Drug Distribution
title_full_unstemmed The Tumor Microenvironment and Strategies to Improve Drug Distribution
title_short The Tumor Microenvironment and Strategies to Improve Drug Distribution
title_sort tumor microenvironment and strategies to improve drug distribution
topic Tumor Microenvironment
hypoxia inducible factor (HIF)
interstitial fluid pressure
Solid tumor
drug distribution
pharmacodynamic markers
url http://journal.frontiersin.org/Journal/10.3389/fonc.2013.00154/full
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