Anti-Tumor Efficacy Induced by Antibodized PDTRP Gene Immunization / 中国肿瘤生物治疗杂志
Chinese Journal of Cancer Biotherapy
;
(6)1995.
Article
in Chinese
| WPRIM
| ID: wpr-584112
ABSTRACT
Objective:
To study the anti-tumor efficacy induced by antibodized tumor epitope PDTRP gene immunization.Methods:
Three copies of tumor associate gene PDTRP from MUCI tandem repeats were designed and mimicked the conformation of MUCI by Insight Ⅱ . The ?lneo-PDTRP plasmid was further constructed, in which the PDTRP target gene was inserted into CDR3 of the ?1 -neo vector. The specific humoral and cellular immune responses towards to PDTRP were detected after intraspleen immunized Balb/c mice with "ylneo-PDTRP. And the immune protection assay was also done to observe whether the mice immunized with ?lneo-PDTRP could prolong the survival after tumor challenge.Results:
The conformation of three copies of PDTRP mimicked the conformation of MUCI tandem repeats. The expression of ?lneo-PDTRP could be detected after in vitro transfect. The specific antibody against PDTRP epitope could be induced and increase to a higher titer after intraspleen injection with a ?lneo-PDTRP plasmid. And the specific proliferation and cytotox-ic function of lymphocyte were also increased. There is a significant survival from mice immunized with ?lneo-PDTRP a-gainst the 4T1-PDTRP tumor challenge.Conclusions:
Gene immunization with ?lneo-PDTRP could elicit both humoral and cellular tumor specific immune response and had the protective effect.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Cancer Biotherapy
Year:
1995
Type:
Article
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