Safety and Efficacy of Transplantation with Allogeneic Skin Tumors to Treat Chemically-Induced Skin Tumors in Mice.

Abstract

BACKGROUND Transplantation with allogeneic cells has become a promising modality for cancer therapy, which can induce graft-versus-tumor (GVT) effect. This study was aimed at assessing the safety, efficacy, and tissue type GVT (tGVT) response of transplantation with allogeneic skin tumors to treat chemically-induced skin tumors in mice. MATERIAL AND METHODS FVB/N and ICR mice were exposed topically to chemicals to induce skin tumors. Healthy ICR mice were transplanted with allogeneic skin tumors from FVB/N mice to test the safety. The tumor-bearing ICR mice were transplanted with, or without, allogeneic skin tumors to test the efficacy. The body weights (BW), body condition scores (BCS), tumor volumes in situ, metastasis tumors, overall survival, and serum cytokines were measured longitudinally. RESULTS Transplantation with no more than 0.03 g allogeneic skin tumors from FVB/N mice to healthy ICR mice was safe. After transplantation with allogeneic skin tumors to treat tumor-bearing mice, it inhibited the growth of tumors slightly at early stage, accompanied by fewer metastatic tumors at 24 days after transplantation (21.05% vs. 47.37%), while there were no statistically significant differences in the values of BW, BCS, tumor volumes in situ, metastasis tumors, and overall survival between the transplanted and non-transplanted groups. The levels of serum interleukin (IL)-2 were significantly reduced in the controls (P<0.05), but not in the recipients, which may be associated with the tGVT response. CONCLUSIONS Our results suggest that transplantation with allogeneic skin tumors is a safe treatment in mice, which can induce short-term tGVT response mediated by IL-2.

• Authors: Zhiwei Zhang, Hua Sun, Jianhua Zhang, Chunlei Ge, Suwei Dong, Zhen Li, Ruilei Li, Xiaodan Chen, Mei Li, Yun Chen, Yingying Zou, Zhongyi Qian, Lei Yang, Jinyan Yang, Zhitao Zhu, Zhimin Liu, Xin Song
• Journal: Medical science monitor : international medical journal of experimental and clinical research (Med Sci Monit) Vol. 22 Pg. 3113-23 (Sep 02 2016) ISSN: 1643-3750 [Electronic] United States
• PMID: 27587310 (Publication Type: Journal Article)

Chemical References

• Interleukin-2

Topics

• Animals
• Carcinoma, Squamous Cell (immunology, therapy)
• Female
• Graft vs Tumor Effect (immunology)
• Interleukin-2 (metabolism)
• Mice
• Mice, Inbred ICR
• Neoplasm Transplantation (immunology, methods)
• Random Allocation
• Skin Neoplasms (immunology, therapy)
• Transplantation, Homologous (methods)