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Cited by 435

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

External Beam Radiation of Tumors Alters Phenotype of Tumor Cells to Render Them Susceptible to Vaccine-Mediated T-Cell Killing

Open access
Chakraborty, Mala, Abrams, Scott I., Coleman, C. Norman, Camphausen, Kevin, Schlom, Jeffrey, Hodge, James W.·2004·Cancer Research

Abstract

Local radiation is an established therapy for human tumors. Radiation also has been shown to alter the phenotype of target tissue, including gene products that may make tumor cells more susceptible to T-cell-mediated immune attack. We demonstrate a biological synergy between local radiation of tumor and active vaccine therapy. The model used consisted of mice transgenic for human carcinoembryonic antigen (CEA) and a murine carcinoma cell line transfected with CEA. The vaccine regimen consisted of a prime and boost strategy using vaccinia and avipox recombinants expressing CEA and three T-cell costimulatory molecules. One dose of 8-Gy radiation to tumor induced up-regulation of the death receptor Fas in situ for up to 11 days. However, neither radiation at this dose nor vaccine therapy was capable of inhibiting growth of 8-day established tumor. When vaccine therapy and local radiation of tumor were used in combination, dramatic and significant cures were achieved. This was mediated by the engagement of the Fas/Fas ligand pathway because Ag-bearing tumor cells expressing dominant-negative Fas were not susceptible to this combination therapy. Following the combination of vaccine and local radiation, tumors demonstrated a massive infiltration of T cells not seen with either modality alone. Mice cured of tumors demonstrated CD4+ and CD8+ T-cell responses specific for CEA but also revealed the induction of high levels of T-cell responses to two other antigens (gp70 and p53) overexpressed in tumor, indicating the presence of a consequential antigen cascade. Thus, these studies demonstrate a new paradigm for the use of local tumor irradiation in combination with active specific vaccine therapy to elicit durable antitumor responses of established tumors.

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Metadata

Authors
Chakraborty, M., Abrams, S. I., Coleman, C. N., Camphausen, K., Schlom, J., & Hodge, J. W.
Venue
Cancer Research
Published
2004-06-15
Volume
64
Issue
12
Pages
4328-4337
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2117280704
Cited by
435
References
31
FWCI
6.01
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: External Beam Radiation of Tumors Alters Phenotype of Tumor Cells to Render Them Susceptible to Vaccine-Mediated T-Cell Killing. https://app.cochat.ai/papers/10.1158/0008-5472.can-04-0073
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Chakraborty, M., Abrams, S. I., Coleman, C. N., Camphausen, K., Schlom, J., & Hodge, J. W. (2004). External Beam Radiation of Tumors Alters Phenotype of Tumor Cells to Render Them Susceptible to Vaccine-Mediated T-Cell Killing. Cancer Research. https://doi.org/10.1158/0008-5472.can-04-0073

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