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The Therapeutic Effects of Intratumoral Injection with MHC Class Ⅱ Gene on Tumor-Bearing Mice / 中国肿瘤生物治疗杂志
Chinese Journal of Cancer Biotherapy ; (6)1995.
Article in Chinese | WPRIM | ID: wpr-581906
ABSTRACT
Many gene therapy protocols can induce antitumor immunity, however, the ex vivo approach restricts their uses. This sutydy intended to induce antitumor immunity by direct transfer of MHC class Ⅱ gene in vivo.

Methods:

MHC class Ⅱ gene cDNA was introduced directly into two tumors P815, (a murine weak immunogenic mas-tocytoma) and B16 (a murine nonirnmunogenic melanoma) to observe the survival rate of the mice.

Results:

Tumori-genicity of P815 was reduced when MHC class Ⅱ gene was introduced directly into tumors in vivo. Further more, most vaccinated mice could survive after second challenge of P815. Co-injection of MHC class Ⅱ and B7 genes in the B16 also resulted in the tumor grow slowly, while the injection of MHC class Ⅱ gene was not enough to induce effective antitumor responses.

Conclusion:

The results showed the potential applications of direct transfer of MHC class Ⅱ gene in the treatment of tumor.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Practice guideline Language: Chinese Journal: Chinese Journal of Cancer Biotherapy Year: 1995 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Practice guideline Language: Chinese Journal: Chinese Journal of Cancer Biotherapy Year: 1995 Type: Article