Kobe Bryant had 27 points, Gasol finished with 25 points and 14 rebounds, and Andrew Bynum added 16 points and 17 rebounds to help the Lakers snap a two-game losing streak.
Allen scored 22 points and Kevin Garnett had 12 points and 12 rebounds for Boston, which had won five in a row and nine of its previous 10 games. But Garnett was 6 for 23 from the field and Paul Pierce was 7 for 18, including a clean-look jumper at the end of overtime.
It rimmed out and Allen tried to push the rebound in, but Gasol got his fingertips on it and it floated away as the buzzer sounded.
CAVALIERS: Rookie point guard Kyrie Irving remains day to day because of a concussion that sidelined him for one game and could keep him out a few more.
Irving was evaluated at the Cleveland Clinic, one day after he was diagnosed with a concussion.
ALL-STAR RESERVES: Dirk Nowitzki’s streak survives, despite one of the worst seasons. Two other old stars are no longer All-Stars.
Nowitzki was chosen Thursday to his 11th consecutive All-Star game, with coaches overlooking the lowest scoring average since his second NBA season in favor of his long-term excellence.
Paul Pierce will join him despite his own slow start caused by a foot injury and was picked for the 10th time.
But Kevin Garnett wasn’t chosen after 14 consecutive selections, and Tim Duncan was left out after 13 in a row. Other regulars such as Ray Allen and Amare Stoudemire will be home, giving way to five first-timers among the reserves: Portland’s LaMarcus Aldridge, Marc Gasol, of Memphis; Andre Iguodola, of Philadelphia; Indiana’s Roy Hibbert, and Chicago’s Luol Deng.
Also headed to the Feb. 26 game are NBA assists leader Steve Nash, of Phoenix; Tony Parker, of San Antonio; Russell Westbrook, of Oklahoma City; Kevin Love, of Minnesota; Chris Bosh, of Miami; Atlanta’s Joe Johnson and Deron Williams, of New Jersey.