The forkhead transcription factor, Foxd1, is necessary for pituitary luteinizing hormone expression in mice
| Autor: | Deborah O. Jung, Brock E. Kabat, Buffy S. Ellsworth, Sarah A. Owusu, Torin Hopkins, Elizabeth M. Patterson, Jason H. Gumbel, Jasmine Simmons |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
medicine.medical_specialty
Pituitary gland Anatomy and Physiology Mesenchyme Science LIM-Homeodomain Proteins DNA transcription Endocrine System Biology Gonadotropic cell Biochemistry Mice Follicle-stimulating hormone Endocrinology Thyroid-stimulating hormone Internal medicine DNA-binding proteins Genetics medicine Animals Reproductive Endocrinology Transcription factor Multidisciplinary Endocrine Physiology Reverse Transcriptase Polymerase Chain Reaction Proteins Forkhead Transcription Factors Luteinizing Hormone Immunohistochemistry Mice Mutant Strains Hormones medicine.anatomical_structure Pituitary Pituitary Gland Medicine Gene expression LHX3 Transcription Factors Research Article Developmental Biology Hormone |
| Zdroj: | PLoS ONE, Vol 7, Iss 12, p e52156 (2012) PLoS ONE BASE-Bielefeld Academic Search Engine |
| ISSN: | 1932-6203 |
| Popis: | The pituitary gland regulates numerous physiological functions including growth, reproduction, temperature and metabolic homeostasis, lactation, and response to stress. Pituitary organogenesis is dependent on signaling factors that are produced in and around the developing pituitary. The studies described in this report reveal that the forkhead transcription factor, Foxd1, is not expressed in the developing mouse pituitary gland, but rather in the mesenchyme surrounding the pituitary gland, which is an essential source of signaling factors that regulate pituitary organogenesis. Loss of Foxd1 causes a morphological defect in which the anterior lobe of the pituitary gland protrudes through the cartilage plate that is developing ventral to the pituitary at embryonic days (e)14.5, e16.5, and e18.5. The number of proliferating pituitary cells is increased at e14.5 and e16.5. Loss of Foxd1 also results in significantly decreased levels of Lhb expression at e18.5. This decrease in Lhb expression does not appear to be due to a change in the number of gonadotrope cells in the pituitary gland. Previous studies have shown that loss of the LIM homeodomain factor, Lhx3, which is activated by the FGF signaling pathway, results in loss of LH production. Although there is a difference in Lhb expression in Foxd1 null mice, the expression pattern of LHX3 is not altered in Foxd1 null mice. These studies suggest that Foxd1 is indirectly required for normal Lhb expression and cartilage formation. |
| Databáze: | OpenAIRE |
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