[Breeding and identification of estrogen receptor beta gene knock-out mice]. 2010

Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
Department of Orthopedics, Second Hospital of Medical College of Ji'nan University, Shenzhen People's Hospital, Shenzhen 518020, China. szpxh4141@163.net

OBJECTIVE To breed estrogen receptor beta (ERbeta) gene knock-out female mice for studying postmenopausal osteoporotic fracture. METHODS Three pairs of ERbeta gene knock-out mice were bred for 3 months, and 14 2-month-old female wild-type C57BL/6J mice with the same genetic background were paired at the ratio of 2:1 and mated with the male ERbeta gene knock-out homozygote mice. After further breeding to obtain sufficient number of mice, the genome DNA was extracted from the tail of the mice for genotyping by PCR. Ten 4-month-old female filial mice with ERbeta gene knock-out and 10 wild-type female mice were randomly selected and sacrificed, and the right proximal tibiae were removed and subjected to micro CT for measuring the parameters of trabecular bone histomorphometry. RESULTS A total of 340 filial generation mice were reproduced in 2 months and genotypic identification revealed a proportion of ERbeta+ or + mice of 23.5%, ERbeta+ or - mice of 48.27 percent; and homozygous mutant (ERbeta- or -) mice of 28.3% (in which 54 were female). The MicroCT data revealed that the micro-architecture of the proximal tibiae was significantly different between ERbeta gene knock-out mice selected from the filial generation and wild type mice (P<0.05). CONCLUSIONS It is feasible to breed ERbeta knock-out female mice by introducing female wild-type mice to pair and mate with ERbeta knock-out homozygote male mice. This approach allows breeding of sufficient number of female ERbeta knock-out mice as the animal models for studying the role of ERbeta.

UI MeSH Term Description Entries
D008297 Male Males
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D001947 Breeding The production of offspring by selective mating or HYBRIDIZATION, GENETIC in animals or plants. Breedings
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D047629 Estrogen Receptor beta One of the ESTROGEN RECEPTORS that has greater affinity for ISOFLAVONES than ESTROGEN RECEPTOR ALPHA does. There is great sequence homology with ER alpha in the DNA-binding domain but not in the ligand binding and hinge domains. ERbeta,ERbetacx,Estrogen Receptor 2,Estrogen Receptors beta,Receptor beta, Estrogen
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D055786 Gene Knockout Techniques Techniques to alter a gene sequence that result in an inactivated gene, or one in which the expression can be inactivated at a chosen time during development to study the loss of function of a gene. Gene Knock-Out Techniques,Gene Knock Out,Gene Knock Out Techniques,Gene Knockout,Gene Knock Outs,Gene Knock-Out Technique,Gene Knockout Technique,Gene Knockouts,Knock Out, Gene,Knock Outs, Gene,Knock-Out Technique, Gene,Knock-Out Techniques, Gene,Knockout Technique, Gene,Knockout Techniques, Gene,Knockout, Gene,Knockouts, Gene,Out, Gene Knock,Outs, Gene Knock,Technique, Gene Knock-Out,Technique, Gene Knockout,Techniques, Gene Knock-Out,Techniques, Gene Knockout
D018345 Mice, Knockout Strains of mice in which certain GENES of their GENOMES have been disrupted, or "knocked-out". To produce knockouts, using RECOMBINANT DNA technology, the normal DNA sequence of the gene being studied is altered to prevent synthesis of a normal gene product. Cloned cells in which this DNA alteration is successful are then injected into mouse EMBRYOS to produce chimeric mice. The chimeric mice are then bred to yield a strain in which all the cells of the mouse contain the disrupted gene. Knockout mice are used as EXPERIMENTAL ANIMAL MODELS for diseases (DISEASE MODELS, ANIMAL) and to clarify the functions of the genes. Knockout Mice,Mice, Knock-out,Mouse, Knockout,Knock-out Mice,Knockout Mouse,Mice, Knock out

Related Publications

Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
January 2003, Methods in molecular medicine,
Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
January 2000, Journal of the Society for Gynecologic Investigation,
Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
June 1998, Endocrinology,
Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
April 1997, Trends in endocrinology and metabolism: TEM,
Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
August 2008, Molecular and cellular endocrinology,
Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
January 2000, In vitro cellular & developmental biology. Animal,
Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
July 2021, The Journal of veterinary medical science,
Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
December 2002, Pharmacology & toxicology,
Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
February 2004, Tanpakushitsu kakusan koso. Protein, nucleic acid, enzyme,
Xiao-hua Pan, and Yu-gang Wang, and Ge Zhang, and Zhong Liu, and Wan-cheng Zeng, and Jia-Kai Chen, and Yong Dai, and Ling Qin
May 2005, Gene,
Copied contents to your clipboard!