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Войти в исследования The Brown journal of hospital medicine · 2023
Concurrent Presentation of Light Chain Amyloidosis and Renal Cell Carcinoma in an Elderly Male : A Case Report and Review of the Literature.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Suzaki Yuriko, Ami Yasushi, Nagata Noriyo, Naito Seishiro, Kato Hiroshi, Taneichi Maiko, Takahashi Motohide, Komiya Takako, Satoh Sachihiro, Gondaira Fumio, Sugiyama Junichi, Nakano Yoshio, Mori Masahito, Komuro Katsutoshi, Uchida Tetsuya
Аннотация
BACKGROUND: We previously reported that the purified Shiga toxins (Stx) Stx1 and Stx2, when coupled with liposomes, induced substantial production of anti-Stx1 and anti-Stx2 IgG antibody, respectively, in mice. The levels of anti-Stx antibody in the sera of mice immune to Stx-liposome correlated well with the protection against subsequent challenge with Stx. Furthermore, mice immunized with a mixture of Stx1-liposome and Stx2-liposome were successfully protected against oral infection with cytotoxin-producing Escherichia coli O157:H7.
METHODS: In this study, the induction of protection against Stx2 by Stx2-liposomes was evaluated in monkeys.
RESULTS: Stx2-liposomes induced a substantial amount of anti-Stx2 IgG antibodies as well as Stx2 neutralizing antibodies in monkeys. Test monkeys were successfully protected against challenge with lethal doses of Stx2. Moreover, these monkeys showed no apparent symptoms, while nonimmunized control monkeys died within 4 days with hemorrhagic gastroenteritis and renal disorder. In addition, as shown by other cases involving antigen-liposome conjugates, Stx2-liposome did not induce anti-Stx2 IgE antibody production, though it stimulated the production of a substantial amount of anti-Stx2 IgG antibodies.
CONCLUSION: These results suggest that Stx-liposome conjugates may serve as candidate vaccines to induce protection against death caused by cytotoxin-producing E. coli infection.
METHODS: In this study, the induction of protection against Stx2 by Stx2-liposomes was evaluated in monkeys.
RESULTS: Stx2-liposomes induced a substantial amount of anti-Stx2 IgG antibodies as well as Stx2 neutralizing antibodies in monkeys. Test monkeys were successfully protected against challenge with lethal doses of Stx2. Moreover, these monkeys showed no apparent symptoms, while nonimmunized control monkeys died within 4 days with hemorrhagic gastroenteritis and renal disorder. In addition, as shown by other cases involving antigen-liposome conjugates, Stx2-liposome did not induce anti-Stx2 IgE antibody production, though it stimulated the production of a substantial amount of anti-Stx2 IgG antibodies.
CONCLUSION: These results suggest that Stx-liposome conjugates may serve as candidate vaccines to induce protection against death caused by cytotoxin-producing E. coli infection.