Abstract:
:Radiotherapy induces DNA damage and cell death, but recent data suggest that concomitant immune stimulation is an integral part of the therapeutic action of ionizing radiation. It is poorly understood how radiotherapy supports tumor-specific immunity. Here we report that radiotherapy induced tumor cell death and transiently activated complement both in murine and human tumors. The local production of pro-inflammatory anaphylatoxins C3a and C5a was crucial to the tumor response to radiotherapy and concomitant stimulation of tumor-specific immunity. Dexamethasone, a drug frequently given during radiotherapy, limited complement activation and the anti-tumor effects of the immune system. Overall, our findings indicate that anaphylatoxins are key players in radiotherapy-induced tumor-specific immunity and the ensuing clinical responses.
journal_name
Immunityjournal_title
Immunityauthors
Surace L,Lysenko V,Fontana AO,Cecconi V,Janssen H,Bicvic A,Okoniewski M,Pruschy M,Dummer R,Neefjes J,Knuth A,Gupta A,van den Broek Mdoi
10.1016/j.immuni.2015.03.009subject
Has Abstractpub_date
2015-04-21 00:00:00pages
767-77issue
4eissn
1074-7613issn
1097-4180pii
S1074-7613(15)00123-5journal_volume
42pub_type
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