Abstract:
:Radiotherapy can be synergistically combined with immunotherapy in mouse models, extending its efficacious effects outside of the irradiated field (abscopal effects). We previously reported that a regimen encompassing local radiotherapy in combination with anti-CD137 plus anti-PD-1 mAbs achieves potent abscopal effects against syngeneic transplanted murine tumors up to a certain tumor size. Knowing that TGFβ expression or activation increases in irradiated tissues, we tested whether TGFβ blockade may further enhance abscopal effects in conjunction with the anti-PD-1 plus anti-CD137 mAb combination. Indeed, TGFβ blockade with 1D11, a TGFβ-neutralizing mAb, markedly enhanced abscopal effects and overall treatment efficacy against subcutaneous tumors of either 4T1 breast cancer cells or large MC38 colorectal tumors. Increases in CD8 T cells infiltrating the nonirradiated lesion were documented upon combined treatment, which intensely expressed Granzyme-B as an indicator of cytotoxic effector capability. Interestingly, tumor tissue but not healthy tissue irradiation results in the presence of higher concentrations of TGFβ in the nonirradiated contralateral tumor that showed smad2/3 phosphorylation increases in infiltrating CD8 T cells. In conclusion, radiotherapy-induced TGFβ hampers abscopal efficacy even upon combination with a potent immunotherapy regimen. Therefore, TGFβ blockade in combination with radioimmunotherapy results in greater efficacy.
journal_name
Mol Cancer Therjournal_title
Molecular cancer therapeuticsauthors
Rodríguez-Ruiz ME,Rodríguez I,Mayorga L,Labiano T,Barbes B,Etxeberria I,Ponz-Sarvise M,Azpilikueta A,Bolaños E,Sanmamed MF,Berraondo P,Calvo FA,Barcelos-Hoff MH,Perez-Gracia JL,Melero Idoi
10.1158/1535-7163.MCT-18-0558subject
Has Abstractpub_date
2019-03-01 00:00:00pages
621-631issue
3eissn
1535-7163issn
1538-8514pii
1535-7163.MCT-18-0558journal_volume
18pub_type
杂志文章abstract::The ability of the epidermal growth factor receptor inhibitor gefitinib (Iressa) to prevent/treat methylnitrosourea (MNU)-induced mammary cancers and to modulate biomarkers in female Sprague-Dawley rats was examined. Rats were given a single dose of MNU (75 mg/kg body weight) at 50 days of age. In the prevention studi...
journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-07-2141
更新日期:2008-04-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-13-0484
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-13-0006-T
更新日期:2013-08-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-10-0045
更新日期:2010-05-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-14-0013
更新日期:2014-09-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
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更新日期:2005-12-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-17-0634
更新日期:2018-04-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-05-0190
更新日期:2006-02-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-18-0212
更新日期:2018-10-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-06-0557
更新日期:2007-02-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-12-0621
更新日期:2012-12-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-17-0600
更新日期:2018-09-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-08-0562
更新日期:2008-12-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-10-0597
更新日期:2010-10-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-11-0742-T
更新日期:2012-03-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-12-0529
更新日期:2013-05-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-04-0328
更新日期:2005-09-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-10-0673
更新日期:2010-12-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章,评审
doi:10.1158/1535-7163.MCT-06-0141
更新日期:2006-08-01 00:00:00
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pub_type: 杂志文章
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更新日期:2016-12-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-07-0132
更新日期:2007-08-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
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更新日期:2010-11-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-13-0395
更新日期:2014-02-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
doi:10.1158/1535-7163.MCT-17-0099
更新日期:2017-07-01 00:00:00
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doi:10.1158/1535-7163.MCT-10-0517
更新日期:2010-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:2011-08-01 00:00:00
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journal_title:Molecular cancer therapeutics
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更新日期:2019-01-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
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更新日期:2011-10-01 00:00:00
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journal_title:Molecular cancer therapeutics
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