Rheumatoid arthritis, fecundity, and coital rates:comment on the article by Nelson et a1

James, William H.

doi:10.1002/art.1780361125

Arthritis & Rheumatism

1993

DOI: 10.1002/art.1780361125

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Rheumatoid arthritis, fecundity, and coital rates:comment on the article by Nelson et a1

William H. James

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2020

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Expression of XBP1s in B lymphocytes is critical for pristane-induced lupus nephritis in mice

Liu

2020

American Journal of Physiology-Renal Physiology

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B lymphocyte hyperactivity plays a pathogenic role in systemic lupus erythematosus (SLE), and spliced X box-binding protein 1 (XBP1s) has been implicated in B cell maturation and differentiation. We hypothesized that blockade of the XBP1s pathway inhibits the B cell hyperactivity underlying SLE and lupus nephritis (LN) development. In the present study, we systematically evaluated the changes in B cell activation induced by the Xbp1 splicing inhibitor STF083010 in a pristane-induced lupus mouse model. The lupus mouse model was successfully established, as indicated by the presence of LN with markedly increased urine protein levels, renal deposition of Ig, and mesangial cell proliferation. In lupus mice, B cell hyperactivity was confirmed by increased CD40 and B cell-activating factor levels. B cell activation and plasma cell overproduction were determined by increases in CD40-positive and CD138-positive cells in the spleens of lupus mice by flow cytometry and further confirmed by CD45R and Ig light chain staining in the splenic tissues of lupus mice. mRNA and protein expression of XBP1s in B cells was assessed by real-time PCR, Western blot analysis, and immunofluorescence analysis and was increased in lupus mice. In addition, almost all changes were reversed by STF083010 treatment. However, the expression of XBP1s in the kidneys did not change when mice were exposed to pristane and STF083010. Taken together, these findings suggest that expression of XBP1s in B cells plays key roles in SLE and LN development. Blockade of the XBP1s pathway may be a potential strategy for SLE and LN treatment.

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Expression of XBP1s in B lymphocytes is critical for pristane-induced lupus nephritis in mice

Liu

2020

American Journal of Physiology-Renal Physiology

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Rheumatoid arthritis, fecundity, and coital rates:comment on the article by Nelson et a1

Cited by 1 publication

References 8 publications

Expression of XBP1s in B lymphocytes is critical for pristane-induced lupus nephritis in mice

Expression of XBP1s in B lymphocytes is critical for pristane-induced lupus nephritis in mice

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