Quick answer: No.
Unless you have permission from all concerned parties, it is not possible to upload songs with uncleared samples. If you don’t, your Boost Collective account may be shut down (and all your releases removed).
You are welcome to upload remixes of your own work.
If you are remixing your own song...
...You do not need to credit yourself as a remixer. You can simply add "Remix" as version information.