Biomedicine & Pharmacotherapy (Sep 2019)

The combination of gemcitabine and docetaxel arrests a doxorubicin-resistant dedifferentiated liposarcoma in a patient-derived orthotopic xenograft model

  • Kentaro Miyake,
  • Takashi Higuchi,
  • Hiromichi Oshiro,
  • Zhiying Zhang,
  • Norihiko Sugisawa,
  • Jun Ho Park,
  • Sahar Razmjooei,
  • Yuki Katsuya,
  • Maryam Barangi,
  • Yunfeng Li,
  • Scott D. Nelson,
  • Takashi Murakami,
  • Yuki Homma,
  • Yukihiko Hiroshima,
  • Ryusei Matsuyama,
  • Michael Bouvet,
  • Sant P. Chawla,
  • Shree Ram Singh,
  • Itaru Endo,
  • Robert M. Hoffman

Journal volume & issue
Vol. 117

Abstract

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Liposarcoma (LS) is a chemotherapy-resistant disease. The aim of the present study was to find precise therapy for a recurrent dedifferentiated liposarcoma (DDLS) in a patient-derived orthotopic xenograft (PDOX) model. The DDLS PDOX models were established orthotopically in the right inguinal area of nude mice. The DDLS PDOX models were randomized into five groups: untreated; doxorubicin (DOX); gemcitabine (GEM) combined with docetaxel (DOC); pazopanib (PAZ); and yondelis (YON). On day 15, all mice were sacrificed. Measurement of tumor volume and body weight were done two times a week. The DDLS PDOX was resistant to DOX (P > 0.184). YON suppressed tumor growth significantly compared to control group (P < 0.027). However, only GEM combined with DOC arrested the tumor growth (P < 0.001). These findings suggest that GEM combined with DOC has clinical potential for this and possibly other DDLS patients.

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