The Gunners' momentum came to a shuddering halt against the Germans on Tuesday.
"It is never nice to lose at home, but it is not the end of the world," said Wilshere, who was substituted in the second half as a precaution after aggravating his ankle.
"We can't let this result affect us now, especially in the Premier League where we are on a great run,
"It will be tough away at Palace, it always is, they will fight for every ball and it will be a different game from Dortmund, but we still have to bounce back straight away."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball