PMID- 12382674 OWN - NLM STAT- MEDLINE DCOM- 20030418 LR - 20121115 IS - 0963-6897 (Print) IS - 0963-6897 (Linking) VI - 11 IP - 5 DP - 2002 TI - Implantation of BDNF-producing packaging cells into brain. PG - 459-64 AB - In order to invent a screening system to check in vivo gene function and the efficiency of gene transfer mediated by a retroviral vector system, we established a novel packaging cell, PacC6/A8, that is transplantable to rat brains. The packaging cell is based on the gene of the neuropatogenic retrovirus, A8-V. For expression in the brain, a vector that expresses brain-derived neurotrophic factor (BDNF) tagged by c-Myc-His6 (LxA/bdmh) was constructed. After transfection of LxA/bdmh to PacC6/A8, a cloned cell line, PacC6/A8/bmh, was established. PacC6/A8/bmh cells stably produced pseudotyped retroviruses carrying LxA/bdmh. For a control, a retroviral vector that bears the gene that codes enhanced green fluorescent protein (EGFP) tagged by C-Mic-His6 was also created and used for the establishment of PacC6/A8/gfmh cells that produce pseudotyped retroviruses carrying LxA/gfmh. PacC6/A8/bmh and PacC6/A8/gfmh cells were injected to the brain of newborn rats. A tumor was formed in all the rats injected that did not exhibit any symptoms until 3-4 weeks after the injection. A histological study of the injected rats revealed that the transferred BDNF gene was expressed in the brain of rats injected with PacC6/A8/bmh cells, but not in rats with PacC6/A8/gfmh cells. Interestingly, many activated microglia had migrated into the tumor induced by PacC6/A8/bmh cells, and expressed a high amount of BDNF. FAU - Fukumitsu, Hidefumi AU - Fukumitsu H AD - Institute of Life Science, Soka University, Hachioji, Tokyo, Japan. FAU - Takase-Yoden, Sayaka AU - Takase-Yoden S FAU - Furukawa, Shoei AU - Furukawa S FAU - Nemoto, Kiyomitsu AU - Nemoto K FAU - Ikeda, Tomio AU - Ikeda T FAU - Watanabe, Rihito AU - Watanabe R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Cell Transplant JT - Cell transplantation JID - 9208854 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Luminescent Proteins) RN - 147336-22-9 (Green Fluorescent Proteins) SB - IM MH - Animals MH - Brain/anatomy & histology/*surgery MH - Brain-Derived Neurotrophic Factor/biosynthesis/*genetics MH - COS Cells MH - Cell Transplantation/*methods MH - Genetic Therapy/methods MH - *Genetic Vectors/administration & dosage MH - Green Fluorescent Proteins MH - Immunohistochemistry MH - Luminescent Proteins MH - Rats MH - Retroviridae/*genetics/isolation & purification MH - Transduction, Genetic/methods MH - Tumor Cells, Cultured MH - Virus Assembly EDAT- 2002/10/18 04:00 MHDA- 2003/04/19 05:00 CRDT- 2002/10/18 04:00 PHST- 2002/10/18 04:00 [pubmed] PHST- 2003/04/19 05:00 [medline] PHST- 2002/10/18 04:00 [entrez] PST - ppublish SO - Cell Transplant. 2002;11(5):459-64.