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Updated: Feb 3, 2026

Modeling the Early Steps of Ovarian Cancer Dissemination in an Organotypic Culture of the Human Peritoneal Cavity
Published on: December 31, 2015
[A Case of Recurrent Colon Cancer with Peritoneal Dissemination Treated with Aflibercept Showing Partial Response for
Kenji Gonda1, Shotaro Fujita, Masahiko Shibata
1Dept. of Gastrointestinal Tract Surgery, Fukushima Medical University.
Abstract:
We report a case of recurrent colon cancer that achieved partial response with chemotherapy of combined 5-fluorouracil (5-FU), irinotecan, Leucovorin(FOLFIRI), and aflibercept. A 65-year-old man was diagnosed with colon cancer with lymph node metastasis. He underwent surgery, but after 1 year, he had a recurrence of peritoneal dissemination, nodal enlargement, and liver metastases. He received chemotherapy(mFOLFOX plus bevacizumab), but suffered progressive disease. Thereafter, FOLFIRI plus aflibercept was administered, and CT revealed a decrease in peritoneal dissemination after 2 cycles of chemotherapy. After 23 cycles, a PET-CT showed no evidence of the disease. We also examined 9 recent cases treated with aflibercept in terms of Grade 3 and 4 adverse effects, leukopenia, neutropenia, thrombocytopenia, hypertension, and sweating. Placentalderived growth factor(PIGF)has been reported to stimulate macrophages and induce production of IL-6, and thus it promotes inflammation and growth of extant cancer. Among the responses to chemotherapy based on the RECIST criteria, a partial response was significantly higher in patients with a low neutrophil-to-lymphocyte ratio(NLR)(p≤0.05)compared to those with high NLR. As regards the relationship between NLR and OS in patients treated with FOLFIRI plus aflibercept, OS was significantly worse in patients with high NLR than those with low NLR(p≤0.05). NLR may be a useful marker in conjunction with aflibercept treatment.
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