Consider usage of CSS3's [[ https://developer.mozilla.org/en-US/docs/Web/CSS/text-emphasis | text-emphasis ]] instead of italics in UI elements for languages like Chinese, Japanese or Korean.
Also make sure that italics usage isn't negatively impacting users of these native languages.
Further reading: http://multilingualtypesetting.co.uk/blog/chinese-italics-oblique-fonts/