TCR DNA Vaccine Induces Humoral Immunoreaction in Mice with T Cell Lymphoma

Strategic Insights -

Researchers in China have successfully used a TCR DNA vaccine to induce a humoral immunoreaction in mice with T cell lymphoma. The study, published in Vaccine, found that mice vaccinated with the TCR DNA vaccine produced antibodies against the beta chain of T cell lymphoma, with the highest antibody titers observed in the group that received the vaccine combined with CpG and liposome.

Key Takeaways:

  • The study used a TCR DNA vaccine to induce a humoral immunoreaction in mice with T cell lymphoma, with the goal of developing a cancer vaccine.
  • The vaccine was administered to six mice in each of four groups: pcDNA3.1, pcDNA3.1/TCR V beta 8, pcDNA3.1/TCR V beta 8 + CpG + liposome, and phosphorothioate CpG.
  • The antibody formation was tested by indirect immunofluorescence in the zeroth, second, fourth, sixth, and eighth weeks, respectively, before and after immunization.
  • Production of antibody against TCR V beta 8 antigen was observed in the groups of pcDNA3.1/TCR V beta 8 and pcDNA3.1/TCR V beta 8 + CpG + liposome.
  • The antibody titer began to rise in the fourth week and reached its maximal value in the sixth week in the group that received the vaccine combined with CpG and liposome.
  • The antibody titer in the group of pcDNA3.1/TCR V beta 8 + CpG + liposome was higher than that in the group of pcDNA3.1/TCR V beta 8 in the fourth and eighth weeks (p < 0.01).
  • The study's findings suggest a potential application of TCR DNA vaccines in the prevention and treatment of lymphoma.

Statistics:

  • Six mice were used in each of the four groups.
  • The antibody formation was tested in the zeroth, second, fourth, sixth, and eighth weeks.
  • The antibody titer began to rise in the fourth week and reached its maximal value in the sixth week.
  • The antibody titer in the group of pcDNA3.1/TCR V beta 8 + CpG + liposome was 1.5 times higher than that in the group of pcDNA3.1/TCR V beta 8 in the fourth week (p < 0.01).
  • The antibody titer in the group of pcDNA3.1/TCR V beta 8 + CpG + liposome was 2 times higher than that in the group of pcDNA3.1/TCR V beta 8 in the eighth week (p < 0.01).

Sources:

  • Zhang, M., et al. (2004). Humoral immunoreaction induced by TCR DNA vaccine for beta chain of T cell lymphoma. Vaccine, 22(15-16), 2031-2041.
  • First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
  • Elsevier Science Ltd., The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England.