Expression of the human angiotensinogen gene in transgenic mice and transfected cells.
We have generated two lines of transgenic mice with integrated copies of a 14-kilobase pair (kb) human DNA fragment containing the angiotensinogen gene, which includes 1.3 kb of 5'- and 3'-flanking regions. In both transgenic lines, a considerable quantity of the correctly initiated and processed angiotensinogen mRNA was detected in the liver and it was detectable in heart. Unexpectedly, mRNA for the transgene was accumulated in the kidney, where is normally the minor source of angiotensinogen, to levels comparable to that in the liver. In addition, an in vitro transfection analysis suggested that the 1.3-kb 5'-flanking sequences are essential for expression of the angiotensinogen gene in hepatic and renal cells and that neither DNA segment within the 14-kb construct contributes significantly to repression of the gene expression in renal cells.
Takahashi
S
S
Institute of Applied Biochemistry, University of Tsukuba, Ibaraki, Japan.
Fukamizu
A
A
Hasegawa
T
T
Yokoyama
M
M
Nomura
T
T
Katsuki
M
M
Murakami
K
K
D000808:Angiotensinogen / Q000235:genetics*; D000818:Animals; D001483:Base Sequence; D015152:Blotting, Northern; D006528:Carcinoma, Hepatocellular; D002460:Cell Line; D015500:Chloramphenicol O-Acetyltransferase / Q000235:genetics / Q000378:metabolism; D015870:Gene Expression; D006801:Humans; D008113:Liver Neoplasms; D051379:Mice; D008822:Mice, Transgenic; D008969:Molecular Sequence Data; D009838:Oligodeoxyribonucleotides; D009928:Organ Specificity; D015347:RNA Probes; D012333:RNA, Messenger / Q000032:analysis / Q000235:genetics; D051381:Rats; D011994:Recombinant Proteins / Q000378:metabolism; D015183:Restriction Mapping; D014162:Transfection
D009838:Oligodeoxyribonucleotides; D015347:RNA Probes; D012333:RNA, Messenger; D011994:Recombinant Proteins; D000808:Angiotensinogen; D015500:Chloramphenicol O-Acetyltransferase