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Human tankyrases are aberrantly expressed in colon tumors and contain multiple epitopes that induce humoral and cellular immune responses in cancer patientsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 14 сентября 2013 г.
- Авторы: Shebzukhov YV, Lavrik IN, Karbach J., Khlgatian SV, Koroleva EP, Belousov PV, Kashkin KN, Knuth A., Jager E., Chi NW, Kuprash DV, Nedospasov SA
- Журнал: Cancer Immunology, Immunotherapy
- Том: 57
- Номер: 6
- Год издания: 2008
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 871
- Последняя страница: 881
- DOI: 10.1007/s00262-007-0423-z
- Аннотация: Purpose Tankyrases 1 and 2 are telomere-associated poly(ADP-ribose) polymerases (PARP) that can positively regulate telomere elongation and interact with multiple cellular proteins. Recent reports implicated tankyrases as tumor antigens and potential targets of anticancer treatment. We examined expression of tankyrases in colon tumors and immune response to these enzymes in patients with different types of cancer. Methods mRNA and protein expression was evaluated by quantitative real-time RT-PCR and Western blotting, respectively. Humoral immune response to recombinant tankyrases was investigated by modiWed enzyme-linked immunoassays. Cellular immune response was analysed by ELISPOT and 51Cr release assays. Results We found that both mRNA and protein levels of tankyrase 2 (TNKL) are upregulated in colon tumors. In contrast, protein level of tankyrase 1 (TNKS) is downregulated, while mRNA level shows variable changes. More than a quarter of colon cancer patients develop humoral immune response to at least one of the two tankyrases. In this study we mapped common and unique B-cell epitopes located in diVerent domains of the two proteins. Additionally, we present evidence for T-cell responses both to epitopes that are unique for TNKL and to those shared between TNKL and TNKS. Conclusion Our study favors a biomarker usage of antibody response to tankyrases. Spontaneous CD8+ T-cell responses to these enzymes are rare and further investigation is needed to evaluate tankyrases as potential targets for cancer immunotherapy.
- Добавил в систему: Недоспасов Сергей Артурович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | 871-881.pdf | 871-881.pdf | 587,2 КБ | 2 августа 2013 [snedos] |