No you can not. You can only publish to Apple from a Mac. That leaves you as a PC user two choices...
Us a company like Smashwords or D2D to push to Apple for you. This is the easiest, and typically the most successful.
-or-
Use a service like MacInCloud (
http://www.macincloud.com/ ) to rent a Mac to do the publishing with. Once the book is published to iTunes you can use a PC to manage it.