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Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas
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| Zeitschriftentitel: | Cancer Research |
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| Personen und Körperschaften: | , , , , , , , |
| In: | Cancer Research, 74, 2014, 23, S. 7137-7148 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Association for Cancer Research (AACR)
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| Schlagwörter: |
| author_facet |
Illa-Bochaca, Irineu Ouyang, Haoxu Tang, Jonathan Sebastiano, Christopher Mao, Jian-Hua Costes, Sylvain V. Demaria, Sandra Barcellos-Hoff, Mary Helen Illa-Bochaca, Irineu Ouyang, Haoxu Tang, Jonathan Sebastiano, Christopher Mao, Jian-Hua Costes, Sylvain V. Demaria, Sandra Barcellos-Hoff, Mary Helen |
|---|---|
| author |
Illa-Bochaca, Irineu Ouyang, Haoxu Tang, Jonathan Sebastiano, Christopher Mao, Jian-Hua Costes, Sylvain V. Demaria, Sandra Barcellos-Hoff, Mary Helen |
| spellingShingle |
Illa-Bochaca, Irineu Ouyang, Haoxu Tang, Jonathan Sebastiano, Christopher Mao, Jian-Hua Costes, Sylvain V. Demaria, Sandra Barcellos-Hoff, Mary Helen Cancer Research Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas Cancer Research Oncology |
| author_sort |
illa-bochaca, irineu |
| spelling |
Illa-Bochaca, Irineu Ouyang, Haoxu Tang, Jonathan Sebastiano, Christopher Mao, Jian-Hua Costes, Sylvain V. Demaria, Sandra Barcellos-Hoff, Mary Helen 0008-5472 1538-7445 American Association for Cancer Research (AACR) Cancer Research Oncology http://dx.doi.org/10.1158/0008-5472.can-14-1212 <jats:title>Abstract</jats:title> <jats:p>Densely ionizing radiation, which is present in the space radiation environment and used in radiation oncology, has potentially greater carcinogenic effect compared with sparsely ionizing radiation that is prevalent on earth. Here, we used a radiation chimera in which mice were exposed to densely ionizing 350 MeV/amu Si-particles, γ-radiation, or sham-irradiated and transplanted 3 days later with syngeneic Trp53-null mammary fragments. Trp53-null tumors arising in mice irradiated with Si-particles had a shorter median time to appearance and grew faster once detected compared with those in sham-irradiated or γ-irradiated mice. Tumors were further classified by markers keratin 8/18 (K18, KRT18), keratin 14 (K14, KRT14) and estrogen receptor (ER, ESR1), and expression profiling. Most tumors arising in sham-irradiated hosts were comprised of both K18- and K14-positive cells (K14/18) while those tumors arising in irradiated hosts were mostly K18. Keratin staining was significantly associated with ER status: K14/18 tumors were predominantly ER-positive, whereas K18 tumors were predominantly ER-negative. Genes differentially expressed in K18 tumors compared with K14/18 tumor were associated with ERBB2 and KRAS, metastasis, and loss of E-cadherin. Consistent with this, K18 tumors tended to grow faster and be more metastatic than K14/18 tumors, however, K18 tumors in particle-irradiated mice grew significantly larger and were more metastatic compared with sham-irradiated mice. An expression profile that distinguished K18 tumors arising in particle-irradiated mice compared with sham-irradiated mice was enriched in mammary stem cell, stroma, and Notch signaling genes. These data suggest that carcinogenic effects of densely ionizing radiation are mediated by the microenvironment, which elicits more aggressive tumors compared with similar tumors arising in sham-irradiated hosts. Cancer Res; 74(23); 7137–48. ©2014 AACR.</jats:p> Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive <i>Trp53</i>-Null Mammary Carcinomas Cancer Research |
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0008-5472 1538-7445 |
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| title |
Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_unstemmed |
Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_full |
Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_fullStr |
Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_full_unstemmed |
Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_short |
Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_sort |
densely ionizing radiation acts via the microenvironment to promote aggressive <i>trp53</i>-null mammary carcinomas |
| topic |
Cancer Research Oncology |
| url |
http://dx.doi.org/10.1158/0008-5472.can-14-1212 |
| publishDate |
2014 |
| physical |
7137-7148 |
| description |
<jats:title>Abstract</jats:title>
<jats:p>Densely ionizing radiation, which is present in the space radiation environment and used in radiation oncology, has potentially greater carcinogenic effect compared with sparsely ionizing radiation that is prevalent on earth. Here, we used a radiation chimera in which mice were exposed to densely ionizing 350 MeV/amu Si-particles, γ-radiation, or sham-irradiated and transplanted 3 days later with syngeneic Trp53-null mammary fragments. Trp53-null tumors arising in mice irradiated with Si-particles had a shorter median time to appearance and grew faster once detected compared with those in sham-irradiated or γ-irradiated mice. Tumors were further classified by markers keratin 8/18 (K18, KRT18), keratin 14 (K14, KRT14) and estrogen receptor (ER, ESR1), and expression profiling. Most tumors arising in sham-irradiated hosts were comprised of both K18- and K14-positive cells (K14/18) while those tumors arising in irradiated hosts were mostly K18. Keratin staining was significantly associated with ER status: K14/18 tumors were predominantly ER-positive, whereas K18 tumors were predominantly ER-negative. Genes differentially expressed in K18 tumors compared with K14/18 tumor were associated with ERBB2 and KRAS, metastasis, and loss of E-cadherin. Consistent with this, K18 tumors tended to grow faster and be more metastatic than K14/18 tumors, however, K18 tumors in particle-irradiated mice grew significantly larger and were more metastatic compared with sham-irradiated mice. An expression profile that distinguished K18 tumors arising in particle-irradiated mice compared with sham-irradiated mice was enriched in mammary stem cell, stroma, and Notch signaling genes. These data suggest that carcinogenic effects of densely ionizing radiation are mediated by the microenvironment, which elicits more aggressive tumors compared with similar tumors arising in sham-irradiated hosts. Cancer Res; 74(23); 7137–48. ©2014 AACR.</jats:p> |
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| author | Illa-Bochaca, Irineu, Ouyang, Haoxu, Tang, Jonathan, Sebastiano, Christopher, Mao, Jian-Hua, Costes, Sylvain V., Demaria, Sandra, Barcellos-Hoff, Mary Helen |
| author_facet | Illa-Bochaca, Irineu, Ouyang, Haoxu, Tang, Jonathan, Sebastiano, Christopher, Mao, Jian-Hua, Costes, Sylvain V., Demaria, Sandra, Barcellos-Hoff, Mary Helen, Illa-Bochaca, Irineu, Ouyang, Haoxu, Tang, Jonathan, Sebastiano, Christopher, Mao, Jian-Hua, Costes, Sylvain V., Demaria, Sandra, Barcellos-Hoff, Mary Helen |
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| description | <jats:title>Abstract</jats:title> <jats:p>Densely ionizing radiation, which is present in the space radiation environment and used in radiation oncology, has potentially greater carcinogenic effect compared with sparsely ionizing radiation that is prevalent on earth. Here, we used a radiation chimera in which mice were exposed to densely ionizing 350 MeV/amu Si-particles, γ-radiation, or sham-irradiated and transplanted 3 days later with syngeneic Trp53-null mammary fragments. Trp53-null tumors arising in mice irradiated with Si-particles had a shorter median time to appearance and grew faster once detected compared with those in sham-irradiated or γ-irradiated mice. Tumors were further classified by markers keratin 8/18 (K18, KRT18), keratin 14 (K14, KRT14) and estrogen receptor (ER, ESR1), and expression profiling. Most tumors arising in sham-irradiated hosts were comprised of both K18- and K14-positive cells (K14/18) while those tumors arising in irradiated hosts were mostly K18. Keratin staining was significantly associated with ER status: K14/18 tumors were predominantly ER-positive, whereas K18 tumors were predominantly ER-negative. Genes differentially expressed in K18 tumors compared with K14/18 tumor were associated with ERBB2 and KRAS, metastasis, and loss of E-cadherin. Consistent with this, K18 tumors tended to grow faster and be more metastatic than K14/18 tumors, however, K18 tumors in particle-irradiated mice grew significantly larger and were more metastatic compared with sham-irradiated mice. An expression profile that distinguished K18 tumors arising in particle-irradiated mice compared with sham-irradiated mice was enriched in mammary stem cell, stroma, and Notch signaling genes. These data suggest that carcinogenic effects of densely ionizing radiation are mediated by the microenvironment, which elicits more aggressive tumors compared with similar tumors arising in sham-irradiated hosts. Cancer Res; 74(23); 7137–48. ©2014 AACR.</jats:p> |
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| spelling | Illa-Bochaca, Irineu Ouyang, Haoxu Tang, Jonathan Sebastiano, Christopher Mao, Jian-Hua Costes, Sylvain V. Demaria, Sandra Barcellos-Hoff, Mary Helen 0008-5472 1538-7445 American Association for Cancer Research (AACR) Cancer Research Oncology http://dx.doi.org/10.1158/0008-5472.can-14-1212 <jats:title>Abstract</jats:title> <jats:p>Densely ionizing radiation, which is present in the space radiation environment and used in radiation oncology, has potentially greater carcinogenic effect compared with sparsely ionizing radiation that is prevalent on earth. Here, we used a radiation chimera in which mice were exposed to densely ionizing 350 MeV/amu Si-particles, γ-radiation, or sham-irradiated and transplanted 3 days later with syngeneic Trp53-null mammary fragments. Trp53-null tumors arising in mice irradiated with Si-particles had a shorter median time to appearance and grew faster once detected compared with those in sham-irradiated or γ-irradiated mice. Tumors were further classified by markers keratin 8/18 (K18, KRT18), keratin 14 (K14, KRT14) and estrogen receptor (ER, ESR1), and expression profiling. Most tumors arising in sham-irradiated hosts were comprised of both K18- and K14-positive cells (K14/18) while those tumors arising in irradiated hosts were mostly K18. Keratin staining was significantly associated with ER status: K14/18 tumors were predominantly ER-positive, whereas K18 tumors were predominantly ER-negative. Genes differentially expressed in K18 tumors compared with K14/18 tumor were associated with ERBB2 and KRAS, metastasis, and loss of E-cadherin. Consistent with this, K18 tumors tended to grow faster and be more metastatic than K14/18 tumors, however, K18 tumors in particle-irradiated mice grew significantly larger and were more metastatic compared with sham-irradiated mice. An expression profile that distinguished K18 tumors arising in particle-irradiated mice compared with sham-irradiated mice was enriched in mammary stem cell, stroma, and Notch signaling genes. These data suggest that carcinogenic effects of densely ionizing radiation are mediated by the microenvironment, which elicits more aggressive tumors compared with similar tumors arising in sham-irradiated hosts. Cancer Res; 74(23); 7137–48. ©2014 AACR.</jats:p> Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive <i>Trp53</i>-Null Mammary Carcinomas Cancer Research |
| spellingShingle | Illa-Bochaca, Irineu, Ouyang, Haoxu, Tang, Jonathan, Sebastiano, Christopher, Mao, Jian-Hua, Costes, Sylvain V., Demaria, Sandra, Barcellos-Hoff, Mary Helen, Cancer Research, Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas, Cancer Research, Oncology |
| title | Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_full | Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_fullStr | Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_full_unstemmed | Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_short | Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| title_sort | densely ionizing radiation acts via the microenvironment to promote aggressive <i>trp53</i>-null mammary carcinomas |
| title_unstemmed | Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas |
| topic | Cancer Research, Oncology |
| url | http://dx.doi.org/10.1158/0008-5472.can-14-1212 |