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Chinese Journal of Cancer Research

, Volume 9, Issue 3, pp 192–194 | Cite as

The effect of TGFβ1 on murine tumor growth following direct intratumoral injection of plasmid DNA

  • Gao Ping 
  • Lu Yinglin 
  • Ge Xueming 
  • Fan Wenhong 
  • Fu Shengfa 
  • Liu Shuang 
  • Yang Heping 
Basic Investigations
  • 12 Downloads

Abstract

In order to investigate TGFβ1 gene expression and its effect on murine tumor growth following direct intratumoral injection of naked plasmid DNA encoding human TGFβ1, LM3 murine lung adenocarcinoma cells were inoculated subcutaneously to T739 mice and grew to tumor nodules in 2 weeks. Multiple direct intratumoral injection of plasmid DNA, PMAMneo- TGFβ1, were given and compared with saline or vector plasmid administration groups. The growth of tumor was observed till the 8th week when the mice were killed for Northern blot analysis and histopathological study of tumoral tissue. The results showed that the growth of tumor was boosted in the TGFβ1 gene treated mice as compared with the control groups, whereas there was no significant difference in the metastatic behavior. Northern blot showed efficient expression of TGFβ1 mRNA in the treated group. The present study indicated that TGFβ1 may stimulate tumor growthin vivo through certain mechanisms. And direct intra-tumoral injection of nude plasmid DNA may be a promising gene transfer strategyin vivo.

Key word

Neoplasms therapy Gene therapy Gene transfer TGFβ1 

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Copyright information

© Chinese Journal Of Cancer Research 1997

Authors and Affiliations

  • Gao Ping 
    • 1
  • Lu Yinglin 
    • 2
  • Ge Xueming 
    • 2
  • Fan Wenhong 
    • 2
  • Fu Shengfa 
    • 2
  • Liu Shuang 
    • 2
  • Yang Heping 
    • 3
  1. 1.Biochemistry Laboratory of the General Hospital PLABeijing
  2. 2.Beijing Medical Research InstituteChina
  3. 3.The 3rd Military Medical UniversityChina

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