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To ablate or not to ablate? HSCs in the T cell driver's seat.

Authors
Type
Published Article
Journal
The Journal of clinical investigation
Publication Date
Volume
117
Issue
2
Pages
306–310
Identifiers
PMID: 17273553
Source
Medline
License
Unknown

Abstract

The combination of the induction of lymphopenia and vaccination and/or T cell transfer is garnering much attention for cancer treatment. Preclinical studies have shown that the induction of lymphopenia by chemotherapy or radiation can enhance the antitumor efficacy of several distinct, cell-based immunotherapeutic approaches. The mechanism(s) by which such enhancement is achieved are being intensively studied, yet there is much opportunity for improvement. The animal studies reported by Wrzesinski and colleagues in this issue of the JCI are a promising and timely step in this direction (see the related article beginning on page 492). The authors have evaluated both the effect of increasing the intensity of lymphodepletion and the influence of HSC transfer on the in vivo function of adoptively transferred CD8(+) T cells. We discuss their results in light of the evolving field and their implications for advancing cell-based immunotherapies for cancer.

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