US 7,485,448 B2
Serum-free medium for producing retroviruses
Hirofumi Yoshioka, Otsu (Japan); Yasushi Katayama, Otsu (Japan); Daisuke Tomura, Otsu (Japan); Masao Funakoshi, Otsu (Japan); Kazuya Matsumoto, Otsu (Japan); Junichi Mineno, Otsu (Japan); Kazutoh Takesako, Otsu (Japan); and Ikunoshin Kato, Otsu (Japan)
Assigned to Takara Bio Inc., Shiga (Japan)
Filed on Sep. 13, 2006, as Appl. No. 11/519,775.
Claims priority of application No. 2005-265238 (JP), filed on Sep. 13, 2005.
Prior Publication US 2007/0065854 A1, Mar. 22, 2007
Int. Cl. C12N 1/36 (2006.01); C12P 21/04 (2006.01)
U.S. Cl. 435—245  [435/70.1] 8 Claims
 
1. A serum-free medium used for cultivation of a virus producer cell, comprising:
(a) human serum albumin at a concentration of 0.05 to 1% by weight;
(b) calcium at a concentration of 2.70 to 4.51 mmol/L; and
(c) a virus producer cell.