Related Experiment Video
Updated: May 2, 2026

In Vivo Gene Transfer to the Rabbit Common Carotid Artery Endothelium
Published on: May 6, 2018
Expression of human transferrin can be regulated effectively by rabbit transferrin regulatory elements in transgenic
Jingbin Yan1, Xiuli Gong, Shubiao Pan
1Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiaotong University, 24/1400 West Beijing Road, Shanghai, 200040, People's Republic of China.
Abstract:
Human transferrin (hTF) belongs to the iron-binding glycoprotein family. It plays an important role in iron transport throughout the body. Transgenic mice are a good model to study how to produce functional hTF on a large-scale. We have improved the expression of hTF and investigated its regulatory mechanism in transgenic mice. Three expression constructs were prepared in which hTF expression was controlled by different regulatory cassettes of rabbit transferrin (rTF). hTF was secreted into serum of transgenic mice when its expression was controlled by the rTF promoter and enhancer, whereas the rTF enhancer in tandem with the rTF promoter repressed hTF secretion into milk. A significant inverse relationship between methylation of the rTF promoter and hTF expression was observed in liver, heart, mammary gland, and muscle of transgenic mice. The highest concentration of hTF was 700 μg/ml in milk.
Related Concept Videos
Regulation of Expression at Multiple Steps
General Transcription Factors
Transcription Factors
Regulation of Expression Occurs at Multiple Steps
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Mouse Models of Cancer Study
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...

