Conservative sequences in 3'UTR of TCRzeta mRNA regulate TCRzeta in SLE T cells.

Conservative sequences in 3'UTR of TCRzeta mRNA regulate TCRzeta in SLE T cells. Research Abstract Details 

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Conservative sequences in 3'UTR of TCRzeta mRNA regulate TCRzeta in SLE T cells. Abstract Text:

Kensei Tsuzaka,Yuka Itami,Chika Kumazawa,Miyuki Suzuki,Yumiko Setoyama,Keiko Yoshimoto,Katsuya Suzuki,Tohru Abe,Tsutomu Takeuchi,Kensei Tsuzaka,Yuka Itami,Chika Kumazawa,Miyuki Suzuki,Yumiko Setoyama,Keiko Yoshimoto,Katsuya Suzuki,Tohru Abe,Tsutomu Takeuchi,

We have demonstrated that T-cell receptor zeta (zeta) mRNA with a 562-bp deleted alternatively spliced 3'-untranslated region (3'UTR) observed in T cells of patients with systemic lupus erythematosus (SLE) can lead to a reduction in zeta and TCR/CD3 (J. Immunol., 2003 & 2005). To determine the region in zeta mRNA 3'UTR for the regulation of zeta, zeta mRNA with 3'UTR truncations ligated into pDON-AI was used to infect murine T-cell hybridoma MA5.8 cells, which do not contain zeta. As a Western blot analysis demonstrated the importance of the regions from +871 to +950, containing conservative sequence 1 (CS1), and +1070 to +1136, containing CS2, for the production of zeta, we constructed MA5.8 mutants carrying zeta mRNA 3'UTR with deletions of these regions (DeltaCS1 and DeltaCS2 mutants). Western blot and FACS analyses showed significant reduction in the cell surface zeta and TCR/CD3 in both these mutants, and IL-2 production was decreased, compared with MA5.8 cells transfected with wild-type zeta mRNA. Furthermore, real-time PCR demonstrated the instability of zeta mRNA with 3'UTR deletions in these MA5.8 mutants. In conclusion, CS1 and CS2 may be responsible for the regulation of zeta and TCR/CD3 through the stability of zeta mRNA in SLE T cells.

Conservative sequences in 3'UTR of TCRzeta mRNA regulate TCRzeta in SLE T cells. Publishing Authors By Initials

K Tsuzaka,Y Itami,C Kumazawa,M Suzuki,Y Setoyama,K Yoshimoto,K Suzuki,T Abe,T Takeuchi,K Tsuzaka,Y Itami,C Kumazawa,M Suzuki,Y Setoyama,K Yoshimoto,K Suzuki,T Abe,T Takeuchi,

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Conservative sequences in 3'UTR of TCRzeta mRNA regulate TCRzeta in SLE T cells. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Biochemical and biophysical research communication

VOLUME: 367

Page Numbers: 311-7

Journal Abbreviation: Biochem. Biophys. Res. Commun.

ISSN: 1090-2104

DAY: 3

MONTH: 01

YEAR: 2008

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LANGUAGE: eng

NlmUniqueID: 372516

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Grant and Affiliation Information for Conservative sequences in 3'UTR of TCRzeta mRNA regulate TCRzeta in SLE T cells.

AFFILIATION: Division of Rheumatology, Department of Internal Medicine, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama 350-8550, Japan.

Country: United States

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MEDLINETA: Biochem Biophys Res Commun

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