Novel Ribbon-Type Nuclear Factor of Activated T Cells Decoy Oligodeoxynucleotides Preclude Airways Hyperreactivity and Th2 Cytokine Expression in Experimental Asthma

作者：Nakamura Yutaka^*; Nagashima Hiromi; Akiyama Masachika; Sato Atsuko; Miyamoto Takayuki; Sasaki Nobuhito; Nitanai Hiroo; Kowata Koko; Nakadate Toshihide; Kobayashi Hitoshi; Uesugi Noriyuki; Sugai Tamotsu; Kakiuchi Terutaka; Inoue Hiroshi; Yamauchi Kohei

来源：International Archives of Allergy and Immunology, 2011, 155(2): 129-140.

DOI：10.1159/000319826

• Nuclear factor of activated T cells
• Transcription factor
• T helper 2 cytokines
• Adoptive transfer
• Decoy
• Gene therapy
• Allergic airway inflammation
• Experimental asthma

Background: Nuclear factor of activated T cells (NFAT) is required for the differentiation of Th2 responses, so we examined its role in mouse experimental asthma and tested the hypothesis that an NFAT blockade with a decoy against NFAT can prevent asthma progression. Objective: To determine the effects of the NFAT decoy oligodeoxynucleotides (ODNs) on the development of airway inflammation, we designed a novel ribbon-type ODN containing two binding sites for NFAT in a single decoy molecule without an open end, which is more stable than a conventional decoy, and largely preserved its structural integrity in the presence of nucleases. Methods: Ribbon-type NFAT decoy ODNs were transfected into ovalbumin (OVA)-sensitized CD3+ T cells in vitro. OVA-immunized mice received these cells by intraperitoneal injection. Airway hyperreactivity (AHR) was measured and the transfected CD3+ T cells' responses to the airways were characterized. Results: Development of AHR after OVA challenge was effectively abolished after adoptive transfer of ribbon-type NFAT decoy ODN transfected CD3+ T cells. Transfer of ribbon-type decoy significantly reduced the number of inflammatory cells and the concentrations of IL-4, IL-5 and IL-13, but not IFN-gamma, in the bronchoalveolar lavage of the recipient mice. Conclusion: These results suggest the inhibitory effect of ribbon-type decoy ODNs against NFAT on the induction of bronchial asthma. Adoptively transferred CD3+ T cells, which are transfected with NFAT decoy, may be an effective strategy for the treatment of asthma.

• 出版日期2011