Hisataka Kitano1, Yoh Masaoka1, Atsushi Mamiya1, Yusuke Fujiwara1, Toshio Miki2, Chiaki Hidai3. 1. Division of Oral Surgery, Nihon University School of Medicine, Tokyo, Japan. 2. Division of Physiology, Nihon University School of Medicine, Tokyo, Japan. 3. Medical Education Center, Nihon University School of Medicine, Tokyo, Japan hidai.chiaki@nihon-u.ac.jp.
Abstract
BACKGROUND/AIM: Combination cancer therapy is currently under investigation. This study examined the effect of cancer combination therapy using the E3 and C1 (E3C1) domains of developmental endothelial locus-1 (Del1) and cisplatin (CDDP) in murine transplanted tumors. MATERIALS AND METHODS: Mice with transplanted tumors (A431, SCCKN or SCC-4 cells) were injected intraperitoneally with CDDP and injected locally with nonviral plasmid vectors encoding E3C1. Histochemical analysis of the transplanted tumors was then performed to assess the effects on prognosis. RESULTS: The CDDP+E3C1 injected group had reduced tumor growth and longer survival compared to the CDDP injected group. In addition, cell death was observed in the tumor of the CDDP+E3C1 group.. Furthermore, angiogenesis and increased blood vessels were observed together with stromal development. CONCLUSION: The CDDP+E3C1 treatment resulted in improved survival and poor tumor stromal development in mice with transplanted tumors. Copyright
BACKGROUND/AIM: Combination cancer therapy is currently under investigation. This study examined the effect of cancer combination therapy using the E3 and C1 (E3C1) domains of developmental endothelial locus-1 (Del1) and cisplatin (CDDP) in murine transplanted tumors. MATERIALS AND METHODS:Mice with transplanted tumors (A431, SCCKN or SCC-4 cells) were injected intraperitoneally with CDDP and injected locally with nonviral plasmid vectors encoding E3C1. Histochemical analysis of the transplanted tumors was then performed to assess the effects on prognosis. RESULTS: The CDDP+E3C1 injected group had reduced tumor growth and longer survival compared to the CDDP injected group. In addition, cell death was observed in the tumor of the CDDP+E3C1 group.. Furthermore, angiogenesis and increased blood vessels were observed together with stromal development. CONCLUSION: The CDDP+E3C1 treatment resulted in improved survival and poor tumor stromal development in mice with transplanted tumors. Copyright
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