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15.10.2015 | Original Article | Ausgabe 3/2016

Tumor Biology 3/2016

Early downregulation of acute phase proteins after doxorubicin exposition in patients with breast cancer

Tumor Biology > Ausgabe 3/2016
Carolina Panis, Luciana Pizzatti, Aedra Carla Bufalo, Ana Cristina Herrera, Vanessa Jacob Victorino, Rubens Cecchini, Eliana Abdelhay
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Electronic supplementary material

The online version of this article (doi:10.​1007/​s13277-015-4203-7) contains supplementary material, which is available to authorized users.


Chemotherapy remains the first-choice option for adjuvant therapy in breast cancer. Here, we investigated the impact of the first chemotherapic cycle of doxorubicin on the plasmatic–proteomic profiling of women diagnosed with breast cancer (n = 87). Blood samples were obtained from the same patient before and after doxorubicin infusion (1 h, 60 mg/m2) and processed for label-free LC-MS proteomic screening. A total of 80 proteins were downregulated after chemotherapy. In silico analysis revealed that the main biological process enrolled was inflammation and canonical pathways involving acute phase proteins. TNF-α, IL-1β, IL-12, TGF-β1, clusterin, and gelsolin were chosen as relevant for further validation. All selected targets presented reduced plasmatic levels after treatment. Our results indicate that doxorubicin downregulated acute phase proteins immediately after its infusion. Since such proteins are cancer promoting, its downregulation could support the effectiveness of doxorubicin along treatment.

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Supplementary Table 1 (XLS 40kb)
Supplementary Table 2 (XLS 1841kb)
Supplementary Table 3 (XLS 1981kb)
Supplementary Table 4 (XLS 58kb)
Supplementary Table 5 (XLS 57kb)
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