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Sexual dimorphism in autoimmunity
Kira Rubtsova, … , Philippa Marrack, Anatoly V. Rubtsov
Kira Rubtsova, … , Philippa Marrack, Anatoly V. Rubtsov
Published April 27, 2015
Citation Information: J Clin Invest. 2015;125(6):2187-2193. https://doi.org/10.1172/JCI78082.
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Review Series

Sexual dimorphism in autoimmunity

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Abstract

Autoimmune diseases occur when the immune system attacks and destroys the organs and tissues of its own host. Autoimmunity is the third most common type of disease in the United States. Because there is no cure for autoimmunity, it is extremely important to study the mechanisms that trigger these diseases. Most autoimmune diseases predominantly affect females, indicating a strong sex bias. Various factors, including sex hormones, the presence or absence of a second X chromosome, and sex-specific gut microbiota can influence gene expression in a sex-specific way. These changes in gene expression may, in turn, lead to susceptibility or protection from autoimmunity, creating a sex bias for autoimmune diseases. In this Review we discuss recent findings in the field of sex-dependent regulation of gene expression and autoimmunity.

Authors

Kira Rubtsova, Philippa Marrack, Anatoly V. Rubtsov

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Figure 1

Sex-specific factors that lead to sex bias in autoimmunity.

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Sex-specific factors that lead to sex bias in autoimmunity.
Sex-related ...
Sex-related factors, including sex hormones, the presence of two X chromosomes, overexpression of X-linked genes due to incomplete inactivation of the second X chromosome, overexpression of miRNAs encoded on X chromosomes, and sex-specific gut microbiota influence the gene expression profile and lead to sex-specific changes in gene expression. These changes in gene expression in turn drive sex-biased autoimmunity. In addition, these factors can influence each other. For example, sex hormones affect the gut microflora and expression of miRNAs and IFN-γ. In turn, gut microflora can regulate the levels of sex hormones.
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