In situ hybridization mapping of the growth hormone receptor (GHR) gene assigns a linkage group (C9, FSA, GHR, and S0105) to Chromosome 16 in pigs

1994 ◽  
Vol 5 (3) ◽  
pp. 160-162 ◽  
Author(s):  
B. P. Chowdhary ◽  
H. Ellegren ◽  
M. Johansson ◽  
L. Andersson ◽  
I. Gustavsson
Keyword(s):  
Growth Hormone ◽  
In Situ Hybridization ◽  
Linkage Group ◽  
Hormone Receptor ◽  
Growth Hormone Receptor ◽  
Chromosome 16 ◽  
Ghr Gene ◽  
Hybridization Mapping

scholarly journals Growth hormone receptor (GHR) gene polymorphism and scoliosis in Prader-Willi syndrome

2018 ◽  
Vol 39 ◽  
pp. 29-33 ◽  
Author(s):  
Merlin G. Butler ◽  
Waheeda Hossain ◽  
Maaz Hassan ◽  
Ann M. Manzardo
Keyword(s):  
Growth Hormone ◽  
Gene Polymorphism ◽  
Hormone Receptor ◽  
Growth Hormone Receptor ◽  
Prader Willi Syndrome ◽  
Ghr Gene

scholarly journals Dairy cows experience selective reduction of the hepatic growth hormone receptor during the periparturient period

2004 ◽  
Vol 181 (2) ◽  
pp. 281-290 ◽  
Author(s):  
J Wook Kim ◽  
RP Rhoads ◽  
SS Block ◽  
TR Overton ◽  
SJ Frank ◽  
...  
Keyword(s):  
Gene Expression ◽  
Skeletal Muscle ◽  
Growth Hormone ◽  
Dairy Cows ◽  
Hormone Receptor ◽  
Growth Hormone Receptor ◽  
Late Pregnancy ◽  
Target Tissue ◽  
Ghr Gene ◽  
Igf I

At parturition, dairy cows experience a 70% reduction in plasma IGF-I. This reduction coincides with decreased abundance of GHR1A, the liver-specific transcript of the growth hormone receptor (GHR) gene, suggesting impaired growth hormone-dependent synthesis of IGF-I. It is not immediately obvious that the periparturient reduction in GHR1A is sufficient to reduce hepatic GHR abundance. This is because approximately 50% of total GHR mRNA abundance in prepartum liver is accounted for by ubiquitously expressed transcripts which remain collectively unchanged at parturition. In addition, the possibility that parturition alters GHR expression in other growth hormone target tissue has not been examined. To address these questions, we measured GHR gene expression and GHR protein in liver and skeletal muscle of four dairy cows on days -35,+3 and+56 (relative to parturition on day 0). Hepatic GHR abundance and GHR1A transcripts were lower on day+3 than on day -35 and returned to late pregnancy value by day+56. Additional studies in two other groups of cows indicated that the hepatic levels of the GHR protein recovered substantially within 10 days after parturition. These changes occurred without variation in the abundance of HNF4, a liver-enriched transcription factor activating the promoter responsible for GHR1A synthesis. In contrast to liver, levels of GHR gene expression and GHR protein were identical on days -35,+3 and+56 in skeletal muscle. These data suggest a role for the GHR in regulating tissue-specific changes in growth hormone responsiveness in periparturient dairy cows.

361 GROWTH HORMONE RECEPTOR MUTANT PIGS PRODUCED BY USING THE CLUSTERED REGULARLY INTERSPACED SHORT PALINDROMIC REPEATS (CRISPR) AND CRISPR-ASSOCIATED SYSTEMS IN IN VITRO-PRODUCED ZYGOTES

2015 ◽  
Vol 27 (1) ◽  
pp. 269 ◽  
Author(s):  
M. Kurome ◽  
M. Dahlhoff ◽  
S. Bultmann ◽  
S. Krebs ◽  
H. Blum ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Hormone Receptor ◽  
Growth Hormone Receptor ◽  
Large Animal Model ◽  
Large Animal ◽  
Single Mutation ◽  
Wild Type ◽  
Ghr Gene ◽  
Normal Fertilization

Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas) technology is considered as an efficient strategy for generating gene edited large animals, such as pigs. Compared to somatic cell nuclear transfer, this new technology offers a relatively simple way to generate mutant pigs by direct injection of RNA into the cytoplasm of zygotes. Moreover, the use of in vitro produced zygotes would provide a highly effective and practical method for the production of porcine disease models for biomedical research. Here we examined the production efficiency of growth hormone receptor (GHR) mutant pigs by the combination of the CRISPR/Cas system and in vitro produced zygotes. In vitro maturation (IVM) of oocytes was performed as described previously (Kurome et al., Meth. Mol. Biol., in press). In all experiments, the same batch of frozen sperm was used. After IVM, around 20 oocytes with expanded cumulus cells were incubated with 5 × 104 spermatozoa in a 100-μL drop of porcine fertilization medium for 7 h. In vitro-produced embryos were assessed by the ratio of normal fertilization (eggs with 2 pronuclei) and blastocyst formation at Day 7. The Cas9 mRNA and a single guide RNA, recognising a short sequence of 20 base pairs in exon 3 of the GHR gene, were injected directly into the cytoplasm of the embryos 8.5 to 9.5 h after IVF. Injected embryos were transferred laparoscopically to recipient pigs, and 86.4% (57/66) of sperm-penetrated oocytes (66/96) exhibited normal fertilization. Incidence of polyspermy was relatively low (9/66, 13.6%). Developmental ability of in vitro-produced embryos to the blastocyst stage was 17.4% (24/138). In total, 426 RNA-injected embryos were transferred into 2 recipients, one of which became pregnant and gave birth to 8 piglets. All piglets were clinically healthy and developed normally. In 3 out of 8 piglets (37.5%), mutations were introduced. Next-generation sequencing revealed that all of them were mosaics: one with a single mutation (22% wild-type/78% mutant) and 2 piglets with 2 different mutations (80% wild-type/2% mutant_1/18% mutant_2 and 94% wild-type/4% mutant_1/2% mutant_2). Four out of 5 mutations caused a frameshift in the GHR gene. Our study reports for the first time generation of GHR mutant pigs by the use of the CRISPR/Cas system in in vitro-produced zygotes. Because all GHR mutant offspring were mosaic, Cas9 activation probably occurred after the 1-cell stage under our experimental conditions. The founder animal with the highest proportion of mutant GHR alleles will be used for breeding to establish a large animal model for Laron syndrome.This work is supported by the German Research Council (TR-CRC 127).

Human oocytes and preimplantation embryos express mRNA for growth hormone receptor

Zygote ◽  
2003 ◽  
Vol 11 (4) ◽  
pp. 293-297 ◽  
Author(s):  
Y.J.R. Ménézo ◽  
S. El Mouatassim ◽  
M. Chavrier ◽  
E.J. Servy ◽  
B. Nicolet
Keyword(s):  
Growth Hormone ◽  
Hormone Receptor ◽  
Growth Hormone Receptor ◽  
Mammalian Species ◽  
Germinal Vesicle ◽  
Cumulus Cells ◽  
Early Embryo ◽  
Preimplantation Embryos ◽  
Human Embryos ◽  
Ghr Gene

Human genetic expression of growth hormone receptor (GHR) gene was qualitatively analysed using reverse transcription polymerase chain reaction (RT-PCR) in cumulus cells, immature germinal vesicle (GV) and mature metaphase II (MII) stage oocytes and preimplantation human embryos. The transcripts encoding GHR were detected in cumulus cells and also in naked oocytes, either mature or not. In this case, a nested PCR is needed, as for early embryo preimplantation stages, before genomic activation. The GHR gene is highly expressed from the 4-day morula onwards. This suggests that GHR transcription follows a classical scheme associated with genomic activation. It is probable that, in human, growth hormone plays a role in the final stages of oocyte maturation and early embryogenesis as it does for several other mammalian species.

scholarly journals The baboon: a model for the study of primate growth hormone receptor gene expression during development

1999 ◽  
Vol 23 (1) ◽  
pp. 67-75 ◽  
Author(s):  
G Zogopoulos ◽  
P Nathanielsz ◽  
GN Hendy ◽  
CG Goodyer
Keyword(s):  
Growth Hormone ◽  
Rhesus Monkey ◽  
Gene Transcription ◽  
Hormone Receptor ◽  
Growth Hormone Receptor ◽  
Peptide Sequence ◽  
Fetal Life ◽  
Rt Pcr ◽  
Mrna Isoforms ◽  
Ghr Gene

In subprimates, significant onset of growth hormone receptor (GHR) expression occurs only after birth whereas, in the human, GHR mRNA and protein are widely manifest from the first trimester of fetal life. Thus, it is likely that subprimates are not the best models for studying regulation of human GHR gene transcription, especially during early stages in development. Here we have explored the potential of the baboon as a more appropriate model. Baboon GHR cDNAs were cloned from postnatal liver by reverse transcription (RT)-PCR, using human GHR-specific primers. The encoded baboon GHR precursor protein has an identical signal peptide sequence to that of human and rhesus monkey GHRs, and the mature baboon GHR is also 620 amino acids long, with 95% and 98.5% amino acid identity to the human and rhesus monkey receptors respectively. Previous studies in the human have identified eight 5' untranslated region (5' UTR) variants of the GHR mRNA (V1 to V8, numbered according to their relative abundance). We cloned the baboon V1, V3 and V4 homologues by RT-PCR: these variants have a high degree (>92%) of sequence identity with their human counterparts and also diverge at an identical point, 12 nucleotides upstream of the start of translation. The expression pattern of these three GHR mRNA isoforms in baboon liver during development was characterized. Strong expression of baboon V1 and V4 was evident by 49 days of postnatal life (n=5, 49 days and adult (18.6-19.6 kg)); very low levels of V1, but not V4, were observed in younger animals (n=2, 6 and 30 days). In contrast, V3 5' UTR variant mRNA was present in all fetal (n=4, 141-155 days gestation) and postnatal (n=7, 6-19.6 days and adult (18.6 kg)) hepatic specimens examined. Analysis of postnatal kidney and lung (n=2, 19 and 19.6 kg) revealed that V3 transcripts are present in these tissues, but not V1 and V4. Together, these data demonstrate that, as in the human, baboon V1 and V4 expression is developmentally regulated and tissue specific, while the V3 isoform is more widely expressed. Therefore, it is likely that the regulatory regions of the baboon and human GHR genes are well conserved. Our findings suggest that the baboon is an appropriate animal model in which to define the mechanisms regulating GHR gene transcription during primate development.

Expression of GH receptor mRNA in regenerating skeletal muscle of normal and hypophysectomized rats. An in situ hybridization study

1991 ◽  
Vol 125 (6) ◽  
pp. 595-602 ◽  
Author(s):  
Eva Jennische ◽  
Göran L. Andersson
Keyword(s):  
Skeletal Muscle ◽  
Growth Hormone ◽  
In Situ Hybridization ◽  
Growth Hormone Receptor ◽  
Receptor Expression ◽  
Muscle Fibres ◽  
Receptor Mrna ◽  
Gh Receptor ◽  
Hypophysectomized Rats

Abstract. Expression of growth hormone receptor mRNA was investigated by in situ hybridization in skeletal muscle from normal and hypophysectomized rats during the first seven days of regeneration after ischemic injury. A digoxigenin-labelled RNA probe directed against the extracellular part of the rat GH receptor was used. In both normal and hypophysectomized rats distinct expression of GH receptor mRNA could be demonstrated in the regenerating muscle cells at the myoblast/myotube stage. The GH receptor expression appeared to decline with increasing maturation of the regenerated muscle fibres. In hypophysectomized rats, the regeneration process and the expression of GH receptor mRNA was delayed compared with that in normal animals. It is concluded that growth hormone may affect also the early phase of muscle regeneration in normal animals. To what extent lack of growth hormone contributes to the delayed regeneration observed in the hypophysectomized rats remains to be elucidated.

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