As the blinds go up the pot odds
usally change. Especially if there are antes involved.
If you only have 10bb's left you should be ready to go all in with a wider range of hands, and if you have the big blind and it doesnt cost you too much to call a short stack going all in, u usally should make the call.
Sure, you are likely an underdog, but there's already lots of dead money in the pot, and the short stacker is starting to open up, he/she has to.
When you decide to go all in pre-flop your position is often more important than your cards.
But dont forget to change tactics, and stop pushing and calling with nothing, as soon as both you and your opponents start to get a little deeper.