I've had a few notes in the past about type not displaying correctly when files are shared. Take a look at the available options of these three popular sans-serif type faces.
The version of the Eurostile font has no italic variant.
Here, Candara has both regular and bold italics.
Helvetica LT Std has all of these variants as part of its family.
Many programs take the basic font package loaded with your OS and apply a faux set of variants to them. In Photoshop, these variant options are found in the Character panel.
While it may be tempting to choose the options for bold, italic, all caps, and etc. from the bottom of the panel, these options will cause problems later. Remember, these options are only simulations. It's better to choose an Open Type font with the correct variant for your needs.