Implication of tumor microenvironment in the resistance to chemotherapy in breast cancer patients.

Abstract:

PURPOSE OF REVIEW:Chemotherapy is a cornerstone treatment in patients with early breast cancer. Although some cancer cell-related predictors are emerging, the indications of chemotherapy and the choice of chemotherapy regimen are not individualized enough, emphasizing the need for new predictors. This review will summarize recent advances concerning the implication of tumor microenvironment in the response to chemotherapy. RECENT FINDINGS:In recent years, some data have emerged suggesting that microenvironment could be involved in chemotherapy efficacy. The infiltration of tumor by lymphocytes has been highly correlated with the sensitivity to chemotherapy. These data are consistent with the discovery that anthracyclines could induce immune activation through immunogenic cell death. At the opposite, gene expression analyses have suggested that a stroma signature could predict resistance to neoadjuvant chemotherapy. Finally, chemotherapy has been shown to induce a spike of progenitors for endothelial cells, a mechanism that in turns mediates angiogenesis repopulation. SUMMARY:Preliminary data from pioneer studies suggest that tumor microenvironment could be involved in chemotherapy sensitivity and resistance. Such knowledge could generate two advances: simple predictors for chemotherapy efficacy based on pathology could be generated and strategies that aim at reversing drug resistance could be developed.

journal_name

Curr Opin Oncol

authors

Andre F,Berrada N,Desmedt C

doi

10.1097/CCO.0b013e32833fb384

subject

Has Abstract

pub_date

2010-11-01 00:00:00

pages

547-51

issue

6

eissn

1040-8746

issn

1531-703X

journal_volume

22

pub_type

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