1
|
Banks CM, Trott JF, Hovey RC. The prolactin receptor: A cross-species comparison of gene structure, transcriptional regulation, tissue-specificity, and genetic variation. J Neuroendocrinol 2024; 36:e13385. [PMID: 38586906 DOI: 10.1111/jne.13385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 02/25/2024] [Accepted: 03/13/2024] [Indexed: 04/09/2024]
Abstract
The conserved and multifaceted functions of prolactin (PRL) are coordinated through varied distribution and expression of its cell-surface receptor (PRLR) across a range of tissues and physiological states. The resultant heterogeneous expression of PRLR mRNA and protein across different organs and cell types supports a wide range of PRL-regulated processes including reproduction, lactation, development, and homeostasis. Genetic variation within the PRLR gene also accounts for several phenotypes impacting agricultural production and human pathology. The goal of this review is to highlight the many elements that control differential expression of the PRLR across tissues, and the various phenotypes that exist across species due to variation in the PRLR gene.
Collapse
Affiliation(s)
- Carmen M Banks
- Department of Animal Science, University of California, Davis, Davis, California, USA
| | - Josephine F Trott
- Department of Animal Science, University of California, Davis, Davis, California, USA
| | - Russell C Hovey
- Department of Animal Science, University of California, Davis, Davis, California, USA
| |
Collapse
|
2
|
Shen Q, Li J, Bao H, Wu C. Identification of Duplication Genotypes of the Feathering Rate Gene in Chicken by a Multiplex PCR Following Electrophoresis and/or Sanger Sequencing. Animals (Basel) 2023; 13:ani13061091. [PMID: 36978632 PMCID: PMC10044632 DOI: 10.3390/ani13061091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/10/2023] [Accepted: 03/11/2023] [Indexed: 03/30/2023] Open
Abstract
Sex-linked phenotypes of late feathering (LF) and early feathering (EF) are controlled by a pair of alleles K and k+. Autosexing based on the feathering rate is widely used in poultry production. It is reported that a tandem duplication of 176,324 base pairs linked to the K locus is responsible for LF expression and could be used as a molecular marker to detect LF chicken. So far, there is no genotyping method that can accurately and stably identify the LF homozygote and heterozygote in all chicken breeds. In the present study, a multiplex PCR test was developed to identify EF, LF homozygote, and heterozygote according to electrophoretic bands and the relative height of the peaks by Sanger sequencing. We tested 413 chickens of six native Chinese breeds with this method. The identification was consistent with the sex and phenotype records of the chickens. Band density analysis was performed, and the results supported our genotyping using the new assay. In order to further verify the accuracy of this test in distinguishing homozygote and heterozygote males, 152 LF males were mated with EF females, and the results of the offspring's phenotypes were consistent with our expectations. Our results support tandem duplication as molecular markers of LF, and this new test is applicable to all LF chickens associated with tandem duplication.
Collapse
Affiliation(s)
- Qingmiao Shen
- National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Junying Li
- National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Haigang Bao
- National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Changxin Wu
- National Engineering Laboratory for Animal Breeding, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| |
Collapse
|
3
|
Deng D, Li W, Li L, Yuan X, Li L, Wang J, Han C, Hu S. Molecular characterisation and expression profile of the PRLR gene during goose ovarian follicle development. Br Poult Sci 2023:1-10. [PMID: 36628626 DOI: 10.1080/00071668.2022.2163154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
1. Although PRL-PRLR signalling plays important roles in regulating avian reproduction, there is a paucity of information regarding the functional significance of PRLR in goose ovarian follicle development.2. The full-length 2,496 bp coding sequence of PRLR was obtained from Sichuan White goose (Anser cygnoides) for the first time and was seen to encode a polypeptide containing 831 amino acids. Goose PRLR shares similar sequence characteristics and conserved functional domains to other avian species and was phylogenetically clustered into the avian clade.3. The qPCR results suggested that the mRNA levels of PRLR significantly increased in primary follicles during weeks 3 to 4 of age and were higher in secondary- than in primordial follicles at week 5 post-hatching, which suggested that the PRLR-mediated signalling could be involved in regulation of early folliculogenesis.4. The PRLR mRNA was expressed at the highest levels in the prehierarchical 8-10 mm granulosa layers throughout goose ovarian follicle development, indicating a role for PRLR in the process of follicle selection.5. PRLR mRNA was differentially expressed in the three cohorts of in vitro cultured granulosa cells harvested from different sized goose ovarian follicles, which suggested that PRLR was involved in regulating granulosa cell functions depending on the stage of follicle development. These data provide novel insights into the role of PRLR during goose ovarian follicle development, although the underlying mechanisms await further investigations.
Collapse
Affiliation(s)
- D Deng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P. R. China.,Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, P. R. China
| | - W Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P. R. China
| | - L Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P. R. China
| | - X Yuan
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P. R. China
| | - L Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P. R. China.,Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, P. R. China
| | - J Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P. R. China.,Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, P. R. China
| | - C Han
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P. R. China.,Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, P. R. China
| | - S Hu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P. R. China.,Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, P. R. China
| |
Collapse
|
4
|
Yang M, Ji Y, Yong T, Liu T, Yang S, Guo S, Meng F, Han X, Liang Q, Cao X, Huang L, Du X, Huang A, Kong F, Zeng X, Bu G. Corticosterone stage-dependently inhibits progesterone production presumably via impeding the cAMP-StAR cascade in granulosa cells of chicken preovulatory follicles. Poult Sci 2022; 102:102379. [PMID: 36608454 PMCID: PMC9829700 DOI: 10.1016/j.psj.2022.102379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/27/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Stress can suppress reproduction capacity in either wild or domestic animals, but the exact mechanism behind it, especially in terms of steroidogenesis, remains under-investigated so far. Considering the important roles of progesterone in avian breeding, we investigated the modulation of corticosterone on progesterone production in cultured granulosa cells of chicken follicles at different developmental stages. Using enzyme immunoassays, our study showed that corticosterone could only inhibit progesterone synthesis in granulosa cells from F5-6, F4, and F3 follicles, but not F2 and F1 follicles. Coincidentally, both quantitative real-time PCR and western blotting revealed that corticosterone could downregulate steroidogenic acute regulatory protein (StAR) expression, suggesting the importance of StAR in corticosterone-related actions. Using the dual-luciferase reporter system, we found that corticosterone can potentially enhance, rather than inhibit, the activity of StAR promoter. Of note, combining high-throughput transcriptomic analysis and quantitative real-time PCR, phosphodiesterase 10A (PDE10A), protein kinase cAMP-dependent type II regulatory subunit alpha (PRKAR2A) and cAMP responsive element modulator (CREM) were identified to exhibit the differential expression patterns consistent with cAMP blocking in granulosa cells from F5-6, F4, and F3, but not F2 and F1 follicles. Afterward, the expression profiles of these genes in granulosa cells of distinct developmental-stage follicles were examined by quantitative real-time PCR, in which all of them expressed correspondingly with progesterone levels of granulosa cells during development. Collectively, these findings indicate that corticosterone can stage-dependently inhibit progesterone production in granulosa cells of chicken preovulatory follicles, through impeding cAMP-induced StAR activity presumptively.
Collapse
Affiliation(s)
- Ming Yang
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Yu Ji
- Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Tao Yong
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Tuoyuan Liu
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Shuai Yang
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Shasha Guo
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China
| | - Fengyan Meng
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Xingfa Han
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Qiuxia Liang
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Xiaohan Cao
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Linyan Huang
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Xiaogang Du
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Anqi Huang
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Fanli Kong
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Xianyin Zeng
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Guixian Bu
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an, 625014, PR China,Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China,Corresponding author:
| |
Collapse
|
5
|
Hu S, Li L, Ren X, Qing E, Deng D, He H, Li L, Wang J. Evidence for the Existence of Two Prolactin Isoforms in the Developing Pituitary Gland of the Goose ( Anser cygnoides). Folia Biol (Praha) 2022. [DOI: 10.3409/fb_70-1.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Compared to Galliformes such as chicken and turkey, very little is known about the existence and expression of isoforms of prolactin (PRL) in the pituitary glands of Anseriformes. In this study, by generating a rabbit-anti-goose (Anser cygnoides) PRL polyclonal
antibody, we analysed the expression patterns of goose PRL isoforms in the embryonic and post-hatch development of the pituitary gland. Our results showed that two immunoreactive bands with molecular weights of about 23 and 26 kDa were detected using the Western blot technique, corresponding
to the non-glycosylated (NG-) and the glycosylated (G-) isoform of PRL, respectively. The protein levels of the total PRL in a goose increased gradually from the embryonic day (ED) 22 to the post-hatch day (PD) 28, with a non-significant decrease on PD6. Furthermore, the percentage of G-PRL
in the pituitary gland of the goose fluctuated from about 30.3% to 54.7% throughout the embryonic and post-hatch development. At the mRNA level, the expression of PRL increased steadily during the development and reached the highest levels on PD12, but later showed a non-significant
decrease on PD28. The inconsistent expression patterns between the PRL mRNA and protein during the stages from PD6 to PD28 indicated that the PRL gene expression involves both transcriptional and post-translational regulation. Taken together, our data unequivocally demonstrated
the existence of NG- and G-PRL in the pituitary gland of a goose and that the expression of the total PRL as well as the percentage of G-PRL significantly changed during embryonic and post-hatch development, indicating that the versatile biological functions of PRL during the ontogenesis of
a goose could be closely related to changes in both its total expression and the degree of glycosylation in the pituitary gland.
Collapse
Affiliation(s)
- Shenqiang Hu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Li Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Xufang Ren
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Enhua Qing
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Donghang Deng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Hua He
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Liang Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Jiwen Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| |
Collapse
|
6
|
Yang M, Yang M, Lin Y, Meng F, Du X, Zeng X, Bu G. Characterization of prolactin (PRL) and PRL receptor (PRLR) in Chinese soft-shelled turtle: Molecular identification, ligand-receptor interaction and tissue distribution. Gen Comp Endocrinol 2022; 316:113941. [PMID: 34715089 DOI: 10.1016/j.ygcen.2021.113941] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 10/13/2021] [Accepted: 10/24/2021] [Indexed: 02/06/2023]
Abstract
Prolactin (PRL) plays crucial roles in many physiological and pathological processes through activating its specific membrane-anchored receptor (PRLR). Although this ligand-receptor pair has been extensively studied in mammals, birds and fishes, researches examining their significance is rather scarce in reptiles. Additionally, the interaction mechanism of PRL-PRLR has abortively understood across vertebrates, since two tandem repeated ligand-binding domains of PRLR have been identified in birds and few reptiles. To lay the foundation to clarify their roles and ligand-receptor interaction in reptiles, using Chinese soft-shelled turtle as model, the cDNAs containing open reading frame of PRL and PRLR were cloned. The cloned PRL consisted of 710 bp and encoded a precursor of 228 amino acid (-aa), while PRLR was 2658 bp in length and predicted to generate a 828-aa precursor. Furthermore, the recombinant PRL protein with high-purity was prepared from Escherichia coli (E. coli) strain Rosetta gamiB (DE3) by using cobalt resin. Using the 5 × STAT5-Luciferase reporter system, we found PRLR and PRLR-M2 (the PRLR-mutant lacking membrane-distal ligand-binding domain) could be dose-dependently activated by recombinant PRL, thereby triggering the intracellular JAK2-STAT5 signaling cascade, suggesting PRL-PRLR is functional in Chinese soft-shelled turtle, and the membrane-proximal ligand-binding domain of PRLR is the critical domain involving in PRL-binding. Quantitative real-time PCR revealed that PRL was predominantly and abundantly expressed in pituitary, while PRLR exhibited ubiquitous expression in all of the tissues examined. Collectively, our data indicate the PRL-PRLR pair may function in reptiles including Chinese soft-shelled turtle, in a way similar to that in birds.
Collapse
Affiliation(s)
- Ming Yang
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Ming Yang
- Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Ying Lin
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Fengyan Meng
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China; Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Xiaogang Du
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China; Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China
| | - Xianyin Zeng
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China; Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China.
| | - Guixian Bu
- Isotope Research Laboratory, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China; Department of Bio-engineering and Applied Biology, College of Life Science, Sichuan Agricultural University, Xinkang Road, Ya'an 625014, PR China.
| |
Collapse
|
7
|
Molecular Cloning and Functional Characterization of Three 5-HT Receptor Genes ( HTR1B, HTR1E, and HTR1F) in Chickens. Genes (Basel) 2021; 12:genes12060891. [PMID: 34207786 PMCID: PMC8230051 DOI: 10.3390/genes12060891] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/29/2021] [Accepted: 06/02/2021] [Indexed: 02/06/2023] Open
Abstract
The serotonin (5-hydroxytryptamine, 5-HT) signaling system is involved in a variety of physiological functions, including the control of cognition, reward, learning, memory, and vasoconstriction in vertebrates. Contrary to the extensive studies in the mammalian system, little is known about the molecular characteristics of the avian serotonin signaling network. In this study, we cloned and characterized the full-length cDNA of three serotonin receptor genes (HTR1B, HTR1E and HTR1F) in chicken pituitaries. Synteny analyses indicated that HTR1B, HTR1E and HTR1F were highly conserved across vertebrates. Cell-based luciferase reporter assays showed that the three chicken HTRs were functional, capable of binding their natural ligands (5-HT) or selective agonists (CP94253, BRL54443, and LY344864) and inhibiting intracellular cAMP production in a dose-dependent manner. Moreover, activation of these receptors could stimulate the MAPK/ERK signaling cascade. Quantitative real-time PCR analyses revealed that HTR1B, HTR1E and HTR1F were primarily expressed in various brain regions and the pituitary. In cultured chicken pituitary cells, we found that LY344864 could significantly inhibit the secretion of PRL stimulated by vasoactive intestinal peptide (VIP) or forskolin, revealing that HTR1F might be involved in the release of prolactin in chicken. Our findings provide insights into the molecular mechanism and facilitate a better understanding of the serotonergic modulation via HTR1B, HTR1E and HTR1F in avian species.
Collapse
|
8
|
Bu G, Cui L, Lv C, Lin D, Huang L, Li Z, Li J, Zeng X, Wang Y. Opioid Peptides and Their Receptors in Chickens: Structure, Functionality, and Tissue Distribution. Peptides 2020; 128:170307. [PMID: 32217145 DOI: 10.1016/j.peptides.2020.170307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 12/19/2022]
Abstract
Opioid peptides, derived from PENK, POMC, PDYN and PNOC precursors, together with their receptors (DOR, MOR, KOR and ORL1), constitute the opioid system and are suggested to participate in multiple physiological/pathological processes in vertebrates. However, the question whether an opioid system exists and functions in non-mammalian vertebrates including birds remains largely unknown. Here, we cloned genes encoding opioid system from the chicken brain and examined their functionality and tissue expression. As in mammals, 6 opioid peptides encoded by PENK (Met-enkephalin and Leu-enkephalin), POMC (β-endorphin), PDYN (dynorphin-A and dynorphin-B) and PNOC (nociceptin) precursors and four opioid receptors were found to be highly conserved in chickens. Using pGL3-CRE-luciferase and pGL4-SRE-luciferase reporter systems, we demonstrated that chicken opioid receptors (cDOR, cMOR, cKOR and cORL1) expressed in CHO cells, could be differentially activated by chicken opioid peptides, and resulted in the inhibition of cAMP/PKA and activation of MAPK/ERK signaling pathways. cDOR is potently activated by Met-enkephalin and Leu-enkephalin, and cKOR is potently activated by dynorphin-A, dynorphin-B and nociceptin, whereas cORL1 is specifically activated by nociceptin. Unlike cDOR, cKOR and cORL1, cMOR is moderately/weakly activated by enkephalins and other opioid peptides. These findings suggest the ligand-receptor pair in chicken opioid system is similar, but not identical to, that in mammals. Quantitative real-time PCR revealed that the opioid system is mainly expressed in chicken central nervous system including the hypothalamus. Collectively, our data will help to facilitate the better understanding of the conserved roles of opioid system across vertebrates.
Collapse
Affiliation(s)
- Guixian Bu
- College of Life Science, Sichuan Agricultural University, Ya'an, 625014, PR China; Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Lin Cui
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Can Lv
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Dongliang Lin
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Long Huang
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Zhengyang Li
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Juan Li
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China
| | - Xianyin Zeng
- College of Life Science, Sichuan Agricultural University, Ya'an, 625014, PR China.
| | - Yajun Wang
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, PR China.
| |
Collapse
|
9
|
Okamura A, Masumoto A, Takenouchi A, Kudo T, Aizawa S, Ogoshi M, Takahashi S, Tsudzuki M, Takeuchi S. Changes in prolactin receptor homodimer availability may cause late feathering in chickens. Gen Comp Endocrinol 2019; 272:109-116. [PMID: 30594591 DOI: 10.1016/j.ygcen.2018.12.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/17/2018] [Accepted: 12/26/2018] [Indexed: 01/04/2023]
Abstract
Chicken early (EF) and late feathering (LF) are sex-linked phenotypes conferred by wild-type k+ and dominant K alleles on chromosome Z, respectively. Besides prolactin (PRL) receptor (PRLR) and sperm flagellar 2 (SPEF2) genes, the K allele contains a fusion gene in which partially duplicated PRLR (dPRLR) and SPEF2 (dSPEF2) genes are linked in a tail-to-tail manner. The causative dPRLR gene encodes a C-terminal truncated receptor. LF chickens have short or no primaries at hatching; however, their feather growth rate is higher than that of EF chickens. This study aimed to elucidate the molecular basis of the K allele's biphasic effect on feather development. By 3'RACE and RT-PCR analyses, we demonstrated that dSPEF2 gene transcription occurred beyond all coding exons of the dPRLR gene on the opposite strand and that dPRLR mRNA was less abundant than PRLR mRNA. In addition, a 5'UTR splice variant (SPV) of PRL receptor mRNAs was increased in LF chickens. In vitro expression analysis of 5'UTR linked to the luciferase reporter gene revealed higher translation efficiency of SPV. RT-qPCR showed that the dPRLR mRNA level was higher in embryos; conversely, SPV was higher in hatched chickens, as was dSPEF2 mRNA. These findings suggest that the K allele inhibits feather development at the fetal stage by expressing dPRLR to attenuate PRLR function and promotes feather growth after hatching by increasing PRLR through dSPEF2 mRNA expression. Increased SPV may cause greater feather growth than that in EF chickens by increasing the availability of PRLR homodimers and enhancing PRL signaling.
Collapse
Affiliation(s)
- Ayako Okamura
- Department of Biology, Faculty of Science, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan
| | - Ayane Masumoto
- Department of Biology, Faculty of Science, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan
| | - Atsushi Takenouchi
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan; Japanese Avian Bioresource Project Research Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - Toshiyuki Kudo
- Department of Pharmaceutical Sciences, School of Pharmacy, Shujitsu University, 1-6-1 Nakaku, Nishikawara, Okayama 703-8516, Japan
| | - Sayaka Aizawa
- Department of Biology, Faculty of Science, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan; Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan
| | - Maho Ogoshi
- Department of Biology, Faculty of Science, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan; Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan
| | - Sumio Takahashi
- Department of Biology, Faculty of Science, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan; Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan
| | - Masaoki Tsudzuki
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan; Japanese Avian Bioresource Project Research Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - Sakae Takeuchi
- Department of Biology, Faculty of Science, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan; Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Kitaku, Tsushimanaka, Okayama 700-8530, Japan.
| |
Collapse
|
10
|
Bu G, Fan J, Yang M, Lv C, Lin Y, Li J, Meng F, Du X, Zeng X, Zhang J, Li J, Wang Y. Identification of a Novel Functional Corticotropin-Releasing Hormone (CRH2) in Chickens and Its Roles in Stimulating Pituitary TSHβ Expression and ACTH Secretion. Front Endocrinol (Lausanne) 2019; 10:595. [PMID: 31555213 PMCID: PMC6727040 DOI: 10.3389/fendo.2019.00595] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/13/2019] [Indexed: 11/13/2022] Open
Abstract
Corticotropin-releasing hormone (CRH), together with its structurally and functionally related neuropeptides, constitute the CRH family and play critical roles in multiple physiological processes. Recently, a novel member of this family, namely CRH2, was identified in vertebrates, however, its functionality and physiological roles remain an open question. In this study, using chicken (c-) as the animal model, we characterized the expression and functionality of CRH2 and investigated its roles in anterior pituitary. Our results showed that (1) cCRH2 cDNA is predicted to encode a 40-aa mature peptide, which shares a higher amino acid sequence identity to cCRH (63%) than to other CRH family peptides (23-38%); (2) Using pGL3-CRE-luciferase reporter system, we demonstrated that cCRH2 is ~15 fold more potent in activating cCRH receptor 2 (CRHR2) than cCRHR1 when expressed in CHO cells, indicating that cCRH2 is bioactive and its action is mainly mediated by CRHR2; (3) Quantitative real-time PCR revealed that cCRH2 is widely expressed in chicken tissues including the hypothalamus and anterior pituitary, and its transcription is likely controlled by promoters near exon 1, which display strong promoter activity in cultured DF-1 and HEK293 cells; (4) In cultured chick pituitary cells, cCRH2 potently stimulates TSHβ expression and shows a lower potency in inducing ACTH secretion, indicating that pituitary/hypothalamic CRH2 can regulate pituitary functions. Collectively, our data provides the first piece of evidence to suggest that CRH2 play roles similar, but non-identical, to those of CRH, such as its differential actions on pituitary, and this helps to elucidate the roles of CRH2 in vertebrates.
Collapse
Affiliation(s)
- Guixian Bu
- College of Life Science, Sichuan Agricultural University, Ya'an, China
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Jie Fan
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Ming Yang
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Can Lv
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Ying Lin
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Jinxuan Li
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Fengyan Meng
- College of Life Science, Sichuan Agricultural University, Ya'an, China
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Xiaogang Du
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Xianyin Zeng
- College of Life Science, Sichuan Agricultural University, Ya'an, China
- Xianyin Zeng
| | - Jiannan Zhang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Juan Li
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yajun Wang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
- *Correspondence: Yajun Wang
| |
Collapse
|
11
|
Su LN, Li H, Tan SW, Fang GJ, Yu H, Yang YL. Mechanisms of early- and late-feathering in Qingyuan partridge chickens. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1645619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Li Ning Su
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
- Department of Biology, School of Basic Medicine, Hebei North University, Zhangjiakou, China
| | - Hua Li
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
- Xianxi Biotechnology Co. Ltd., Foshan, Guangdong, China
| | - Shu Wen Tan
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
- Xianxi Biotechnology Co. Ltd., Foshan, Guangdong, China
| | - Gui Jun Fang
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
| | - Hui Yu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
| | - Ya Lan Yang
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
| |
Collapse
|
12
|
Derks MFL, Herrero-Medrano JM, Crooijmans RPMA, Vereijken A, Long JA, Megens HJ, Groenen MAM. Early and late feathering in turkey and chicken: same gene but different mutations. Genet Sel Evol 2018; 50:7. [PMID: 29566646 PMCID: PMC5863816 DOI: 10.1186/s12711-018-0380-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 02/15/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Sex-linked slow (SF) and fast (FF) feathering rates at hatch have been widely used in poultry breeding for autosexing at hatch. In chicken, the sex-linked K (SF) and k+ (FF) alleles are responsible for the feathering rate phenotype. Allele K is dominant and a partial duplication of the prolactin receptor gene has been identified as the causal mutation. Interestingly, some domesticated turkey lines exhibit similar slow- and fast-feathering phenotypes, but the underlying genetic components and causal mutation have never been investigated. In this study, our aim was to investigate the molecular basis of feathering rate at hatch in domestic turkey. RESULTS We performed a sequence-based case-control association study and detected a genomic region on chromosome Z, which is statistically associated with rate of feathering at hatch in turkey. We identified a 5-bp frameshift deletion in the prolactin receptor (PRLR) gene that is responsible for slow feathering at hatch. All female cases (SF turkeys) were hemizygous for this deletion, while 188 controls (FF turkeys) were hemizygous or homozygous for the reference allele. This frameshift mutation introduces a premature stop codon and six novel amino acids (AA), which results in a truncated PRLR protein that lacks 98 C-terminal AA. CONCLUSIONS We present the causal mutation for feathering rate in turkey that causes a partial C-terminal loss of the prolactin receptor, and this truncated PRLR protein is strikingly similar to the protein encoded by the slow feathering K allele in chicken.
Collapse
Affiliation(s)
- Martijn F L Derks
- Wageningen University and Research Animal Breeding and Genomics, P.O. Box 338, 6700 AH, Wageningen, The Netherlands.
| | - Juan M Herrero-Medrano
- Wageningen University and Research Animal Breeding and Genomics, P.O. Box 338, 6700 AH, Wageningen, The Netherlands
| | - Richard P M A Crooijmans
- Wageningen University and Research Animal Breeding and Genomics, P.O. Box 338, 6700 AH, Wageningen, The Netherlands
| | - Addie Vereijken
- Hendrix Genetics Turkeys, Technolgy and Service B.V., P.O. Box 114, 5830 AC, Boxmeer, The Netherlands
| | - Julie A Long
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service, US Department of Agriculture, Beltsville, MD, 20705, USA
| | - Hendrik-Jan Megens
- Wageningen University and Research Animal Breeding and Genomics, P.O. Box 338, 6700 AH, Wageningen, The Netherlands
| | - Martien A M Groenen
- Wageningen University and Research Animal Breeding and Genomics, P.O. Box 338, 6700 AH, Wageningen, The Netherlands
| |
Collapse
|
13
|
Ocampo Daza D, Larhammar D. Evolution of the receptors for growth hormone, prolactin, erythropoietin and thrombopoietin in relation to the vertebrate tetraploidizations. Gen Comp Endocrinol 2018; 257:143-160. [PMID: 28652136 DOI: 10.1016/j.ygcen.2017.06.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 06/16/2017] [Accepted: 06/22/2017] [Indexed: 12/19/2022]
Abstract
The receptors for the pituitary hormones growth hormone (GH), prolactin (PRL) and somatolactin (SL), and the hematopoietic hormones erythropoietin (EPO) and thrombopoietin (TPO), comprise a structurally related family in the superfamily of cytokine class-I receptors. GH, PRL and SL receptors have a wide variety of effects in development, osmoregulation, metabolism and stimulation of growth, while EPO and TPO receptors guide the production and differentiation of erythrocytes and thrombocytes, respectively. The evolution of the receptors for GH, PRL and SL has been partially investigated by previous reports suggesting different time points for the hormone and receptor gene duplications. This raises questions about how hormone-receptor partnerships have emerged and evolved. Therefore, we have investigated in detail the expansion of this receptor family, especially in relation to the basal vertebrate (1R, 2R) and teleost (3R) tetraploidizations. Receptor family genes were identified in a broad range of vertebrate genomes and investigated using a combination of sequence-based phylogenetic analyses and comparative genomic analyses of synteny. We found that 1R most likely generated EPOR/TPOR and GHR/PRLR ancestors; following this, 2R resulted in EPOR and TPOR genes. No GHR/PRLR duplicate seems to have survived after 2R. Instead the single GHR/PRLR underwent a local duplication sometime after 2R, generating separate syntenic genes for GHR and PRLR. Subsequently, 3R duplicated the gene pair in teleosts, resulting in two GHR and two PRLR genes, but no EPOR or TPOR duplicates. These analyses help illuminate the evolution of the regulatory mechanisms for somatic growth, metabolism, osmoregulation and hematopoiesis in vertebrates.
Collapse
Affiliation(s)
- Daniel Ocampo Daza
- Department of Neuroscience, Science for Life Laboratory, Uppsala University, Box 593, SE-75124 Uppsala, Sweden.
| | - Dan Larhammar
- Department of Neuroscience, Science for Life Laboratory, Uppsala University, Box 593, SE-75124 Uppsala, Sweden
| |
Collapse
|
14
|
Luan X, Cao Z, Xing Z, Liu M, Gao M, Meng B, Fan R. Comparative proteomic analysis of pituitary glands from Huoyan geese between pre-laying and laying periods using an iTRAQ-based approach. PLoS One 2017; 12:e0185253. [PMID: 28945779 PMCID: PMC5612699 DOI: 10.1371/journal.pone.0185253] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 09/08/2017] [Indexed: 12/31/2022] Open
Abstract
In this study, we performed a comprehensive evaluation of the proteomic profile of the pituitary gland of the Huoyan goose during the laying period compared to the pre-laying period using an iTRAQ-based approach. Protein samples were prepared from pituitary gland tissues of nine pre-laying period and nine laying period geese. Then the protein samples from three randomly selected geese within each period were pooled in equal amounts to generate one biological sample pool. We identified 684 differentially expressed proteins, including 418 up-regulated and 266 down-regulated proteins. GO annotation and KEGG pathway analyses of these proteins were conducted. Some of these proteins were found to be associated with hormone and neurotransmitter secretion and transport, neuropeptide signalling and GnRH signalling pathways, among others. Subsequently, the modification of the abundance of three proteins (prolactin, chromogranin-A and ITPR3) was verified using western blotting. Our results will provide a new source for mining genes and gene products related to the egg-laying performance of Huoyan geese, and may provide important information for the conservation and utilization of local goose breeds.
Collapse
Affiliation(s)
- Xinhong Luan
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P.R. China
- * E-mail:
| | - Zhongzan Cao
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P.R. China
| | - Zhe Xing
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P.R. China
| | - Mei Liu
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P.R. China
| | - Ming Gao
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P.R. China
| | - Bo Meng
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P.R. China
| | - Ruiming Fan
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, P.R. China
| |
Collapse
|
15
|
Hu S, Duggavathi R, Zadworny D. Regulatory Mechanisms Underlying the Expression of Prolactin Receptor in Chicken Granulosa Cells. PLoS One 2017; 12:e0170409. [PMID: 28107515 PMCID: PMC5249103 DOI: 10.1371/journal.pone.0170409] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 01/04/2017] [Indexed: 12/30/2022] Open
Abstract
Prolactin (PRL) has both pro- and anti-gonadal roles in the regulation of avian ovarian functions through its interaction with the receptor (PRLR). However, neither the pattern of expression of PRLR nor its regulatory mechanisms during follicle development have been clearly defined. The objective of the present study was to investigate mechanisms of PRLR expression in chicken granulosa cells. Levels of PRLR transcript were highest in the stroma and walls of follicles < 2 mm in diameter and progressively declined with the maturation of follicles. In preovulatory follicles, PRLR was expressed at higher levels in granulosa than theca layers. FSH exerted the greatest stimulatory effect on PRLR and StAR expression in cultured granulosa cells of the 6–8 mm follicles but this effect declined as follicles matured to F1. In contrast, LH did not alter the expression of PRLR in granulosa cells of all follicular classes but increased levels of StAR in F2 and F1 granulosa cells. Both non-glycosylated- (NG-) and glycosylated- (G-) PRL upregulated basal PRLR expression in granulosa cells of the 6–8 mm, F3 or F1 follicles but had little effect in F2 follicles. Furthermore, FSH-stimulated PRLR expression was reduced by the addition of either isoform of PRL especially in F2 granulosa cells. These results indicate that PRLR is differentially distributed and regulated by FSH or PRL variants independently or in combination in the follicular hierarchy. By using activators and inhibitors, we further demonstrated that multiple signaling pathways, including PKA, PKC, PI3K, mTOR and AMPK, are not only directly involved in, but they can also converge to modulate ERK2 activity to regulate FSH-mediated PRLR and StAR expression in undifferentiated granulosa cells. These data provide new insights into the regulatory mechanisms controlling the expression of PRLR in granulosa cells.
Collapse
Affiliation(s)
- Shenqiang Hu
- Department of Animal Science, McGill University, Macdonald Campus, Ste. Anne de Bellevue, Quebec, Canada
| | - Raj Duggavathi
- Department of Animal Science, McGill University, Macdonald Campus, Ste. Anne de Bellevue, Quebec, Canada
| | - David Zadworny
- Department of Animal Science, McGill University, Macdonald Campus, Ste. Anne de Bellevue, Quebec, Canada
- * E-mail:
| |
Collapse
|
16
|
Abstract
In the majority of vertebrates, survival of offspring to sexual maturation is important for increasing population size, and parental investment in the young is important for reproductive success. Consequently, parental care is critical for the survival of offspring in many species, and many vertebrates have adapted this behavior to their social and ecological environments. Parental care is defined as any behavior that is performed in association with one's offspring (Rosenblatt, Mayer, Siegel. Maternal behavior among nonprimate mammals. In: Adler, Pfaff, Goy, editors. Handbook of behavioral neurobiology. New York: Plenum; 1985. p. 229-98) and is well characterized in mammals and birds. In birds (class Aves), this is due to the high level of diversity across species. Parental behavior in birds protects the young from intruders, and generally involves nest building, incubation, and broody behavior which protect their young from an intruder, and the offspring are reared to independence. Broodiness is complexly regulated by the central nervous system and is associated with multiple hormones and neurotransmitters produced by the hypothalamus and pituitary gland. The mechanism of this behavior has been extensively characterized in domestic chicken (Gallus domesticus), turkey (Meleagris gallopavo), and pigeons and doves (family Columbidae). This chapter summarizes broodiness in birds from a physiology, genetics, and molecular biology perspective.
Collapse
Affiliation(s)
- Takeshi Ohkubo
- College of Agriculture, Ibaraki University, Ibaraki, Japan.
| |
Collapse
|
17
|
Hu S, Duggavathi R, Zadworny D. Expression and regulation of prolactin-like protein messenger RNA in undifferentiated chicken granulosa cells. Gen Comp Endocrinol 2017; 240:191-197. [PMID: 27815160 DOI: 10.1016/j.ygcen.2016.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 10/21/2016] [Accepted: 10/30/2016] [Indexed: 01/08/2023]
Abstract
Prolactin-like protein (PRL-L; LOC417800) is a homolog of PRL in non-mammalian vertebrates and can act as a functional ligand of PRL receptor (PRLR). Despite its widespread expression in extrapituitary tissues, mechanisms of regulation of PRL-L in the chicken ovary remain unknown. In this study, we first examined PRL-L expression in chicken ovarian developing follicles. PRL-L transcript levels were highest (P<0.05) in follicular walls of <2mm follicles and progressively declined during follicle maturation. Undifferentiated granulosa cells of 6-8mm follicles had higher (P<0.05) PRL-L mRNA levels than differentiated granulosa cells of F3, F2 or F1 follicles. In cultured undifferentiated granulosa cells, levels of PRL-L transcript were increased (P<0.05) by follicle stimulating hormone (FSH) treatment while were not altered by the addition of luteinizing hormone (LH). In addition, 10ng/ml non-glycosylated (NG-) and 1ng/ml glycosylated (G-) PRL increased (P<0.05) but at higher levels (100 or 1000ng/ml) both showed no effects on PRL-L expression. Furthermore, 100ng/ml NG-PRL enhanced (P<0.05) FSH-induced PRL-L expression, whereas the effects of G-PRL were not significant. These results suggest that PRL-L mRNA is differentially expressed in the follicular hierarchy and its high abundance in undifferentiated granulosa cells is under the regulation of FSH or PRL variants independently or in combination. Moreover, in undifferentiated granulosa cells we also provide evidence for a positive role for PKA, PKC and PI3K signaling while a negative role for ERK2 in mediating FSH stimulation of PRL-L transcription.
Collapse
Affiliation(s)
- Shenqiang Hu
- Department of Animal Science, McGill University, Macdonald Campus, Ste. Anne de Bellevue, Quebec H9X 3V9, Canada
| | - Raj Duggavathi
- Department of Animal Science, McGill University, Macdonald Campus, Ste. Anne de Bellevue, Quebec H9X 3V9, Canada
| | - David Zadworny
- Department of Animal Science, McGill University, Macdonald Campus, Ste. Anne de Bellevue, Quebec H9X 3V9, Canada.
| |
Collapse
|
18
|
Bu G, Lin D, Cui L, Huang L, Lv C, Huang S, Wan Y, Fang C, Li J, Wang Y. Characterization of Neuropeptide B (NPB), Neuropeptide W (NPW), and Their Receptors in Chickens: Evidence for NPW Being a Novel Inhibitor of Pituitary GH and Prolactin Secretion. Endocrinology 2016; 157:3562-76. [PMID: 27399877 DOI: 10.1210/en.2016-1141] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The 2 structurally and functionally related peptides, neuropeptide B (NPB) and neuropeptide W (NPW), together with their receptor(s) (NPBWR1/NPBWR2) constitute the NPB/NPW system, which acts mainly on the central nervous system to regulate many physiological processes in mammals. However, little is known about this NPB/NPW system in nonmammalian vertebrates. In this study, the functionality and expression of this NPB/NPW system and its actions on the pituitary were investigated in chickens. The results showed that: 1) chicken NPB/NPW system comprises an NPB peptide of 28 amino acids (cNPB28), an NPW peptide of 23 or 30 amino acids (cNPW23/cNPW30), and their 2 receptors (cNPBWR1 and cNPBWR2), which are highly homologous to their human counterparts. 2) Using a pGL3-CRE-luciferase reporter system, we demonstrated that cNPBWR2 expressed in Chinese hamster ovary cells can be potently activated by cNPW23 (not cNPB28), and its activation inhibits the intracellular cAMP signaling pathway, whereas cNPBWR1 shows no response to peptide treatment, suggesting a crucial role of cNPBWR2 in mediating cNPW/cNPB actions. 3) Quantitative real-time PCR revealed that cNPW and cNPB are widely expressed in chicken tissues, including hypothalamus, whereas cNPBWR1 and cNPBWR2 are mainly expressed in brain or pituitary. 4) In accordance with abundant cNPBWR2 expression in pituitary, cNPW23 could dose dependently inhibit GH and prolactin secretion induced by GHRH and vasoactive intestinal polypeptide, respectively, in cultured chick pituitary cells, as monitored by Western blotting. Collectively, our data reveal a functional NPB/NPW system in birds and offer the first proof that NPW can act directly on pituitary to inhibit GH/prolactin secretion in vertebrates.
Collapse
Affiliation(s)
- Guixian Bu
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | - Dongliang Lin
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | - Lin Cui
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | - Long Huang
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | - Can Lv
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | - Simiao Huang
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | - Yiping Wan
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | - Chao Fang
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | - Juan Li
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | - Yajun Wang
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| |
Collapse
|
19
|
Clapp C, Adán N, Ledesma-Colunga MG, Solís-Gutiérrez M, Triebel J, Martínez de la Escalera G. The role of the prolactin/vasoinhibin axis in rheumatoid arthritis: an integrative overview. Cell Mol Life Sci 2016; 73:2929-48. [PMID: 27026299 PMCID: PMC11108309 DOI: 10.1007/s00018-016-2187-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 03/08/2016] [Accepted: 03/18/2016] [Indexed: 12/29/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic, autoimmune, inflammatory disease destroying articular cartilage and bone. The female preponderance and the influence of reproductive states in RA have long linked this disease to sexually dimorphic, reproductive hormones such as prolactin (PRL). PRL has immune-enhancing properties and increases in the circulation of some patients with RA. However, PRL also suppresses the immune system, stimulates the formation and survival of joint tissues, acquires antiangiogenic properties upon its cleavage to vasoinhibins, and protects against joint destruction and inflammation in the adjuvant-induced model of RA. This review addresses risk factors for RA linked to PRL, the effects of PRL and vasoinhibins on joint tissues, blood vessels, and immune cells, and the clinical and experimental data associating PRL with RA. This information provides important insights into the pathophysiology of RA and highlights protective actions of the PRL/vasoinhibin axis that could lead to therapeutic benefits.
Collapse
MESH Headings
- Angiogenesis Inhibitors/immunology
- Animals
- Arthritis, Rheumatoid/epidemiology
- Arthritis, Rheumatoid/immunology
- Arthritis, Rheumatoid/pathology
- Arthritis, Rheumatoid/physiopathology
- Cartilage, Articular/blood supply
- Cartilage, Articular/immunology
- Cartilage, Articular/pathology
- Cartilage, Articular/physiopathology
- Female
- Humans
- Immune Tolerance
- Immunity, Cellular
- Inflammation/epidemiology
- Inflammation/immunology
- Inflammation/pathology
- Inflammation/physiopathology
- Joints/blood supply
- Joints/immunology
- Joints/pathology
- Joints/physiopathology
- Male
- Prolactin/immunology
- Reproduction
- Sex Factors
- Stress, Physiological
- Stress, Psychological
Collapse
Affiliation(s)
- Carmen Clapp
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM, Juriquilla, 76230, Querétaro, Mexico.
| | - Norma Adán
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM, Juriquilla, 76230, Querétaro, Mexico
| | - María G Ledesma-Colunga
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM, Juriquilla, 76230, Querétaro, Mexico
| | - Mariana Solís-Gutiérrez
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM, Juriquilla, 76230, Querétaro, Mexico
| | - Jakob Triebel
- Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine, Paracelsus Medical University, Nuremberg, Germany
| | - Gonzalo Martínez de la Escalera
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM, Juriquilla, 76230, Querétaro, Mexico
| |
Collapse
|
20
|
Zhao J, Yao J, Li F, Yang Z, Sun Z, Qu L, Wang K, Su Y, Zhang A, Montgomery SA, Geng T, Cui H. Identification of candidate genes for chicken early- and late-feathering. Poult Sci 2016; 95:1498-1503. [PMID: 27081197 DOI: 10.3382/ps/pew131] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 02/25/2016] [Indexed: 11/20/2022] Open
Abstract
Previous studies suggest that prolactin receptor (Prlr) is a potential causative gene for chicken early- (EF) and late-feathering (LF) phenotypes. In this study, we evaluated candidate genes for this trait and determined the expression of 3 genes, including Prlr, sperm flagellar protein 2 (Spef2), and their fusion gene, in the skins of one-day-old EF and LF chicks using RT-qPCR. Data indicated that Prlr expression in the skin did not show significant difference between EF and LF chicks, suggesting Prlr may not be a suitable candidate gene. In contrast, Spef2 expression in the skin displayed a significant difference between EF and LF chicks (P < 0.01), suggesting that Spef2 may be a good candidate gene for chicken feathering. Moreover, dPrlr/dSpef2, the fusion gene, was also a good candidate gene as it was expressed only in LF chicks. However, the expression of the fusion gene was much lower than that of Prlr Additionally, using strand-specific primers, we found that the fusion gene was transcribed in 2 directions (one from dPrlr promoter, another from dSpef2 promoter), which could result in the formation of a double strand RNA. In conclusion, both Spef2 and the fusion gene are good candidate genes for chicken feathering, but Prlr is not. The research on the function and regulation of the candidate genes will help elucidate the molecular basis of the chicken feathering trait.
Collapse
Affiliation(s)
- J Zhao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China; Institute of Epigenetics and Epigenomics, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - J Yao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China; Institute of Epigenetics and Epigenomics, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - F Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China; Institute of Epigenetics and Epigenomics, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Z Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China; Institute of Epigenetics and Epigenomics, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Z Sun
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China; Institute of Epigenetics and Epigenomics, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - L Qu
- Institute of Poultry Science, Chinese Academy of Agricultural Science, Yangzhou, Jiangsu 225125, China
| | - K Wang
- Institute of Poultry Science, Chinese Academy of Agricultural Science, Yangzhou, Jiangsu 225125, China
| | - Y Su
- Institute of Poultry Science, Chinese Academy of Agricultural Science, Yangzhou, Jiangsu 225125, China
| | - A Zhang
- Institute of Poultry Science, Chinese Academy of Agricultural Science, Yangzhou, Jiangsu 225125, China
| | - S A Montgomery
- Department of Botany, University of British Columbia, 6270 University Boulevard, Vancouver, British Columbia, V6T 1Z4, Canada
| | - T Geng
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China; Institute of Epigenetics and Epigenomics, Yangzhou University, Yangzhou, Jiangsu 225009, China.
| | - H Cui
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China; Institute of Epigenetics and Epigenomics, Yangzhou University, Yangzhou, Jiangsu 225009, China; Institute of Comparative Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu 225009, China.
| |
Collapse
|
21
|
Hu Q, Meng Y, Tian H, Chen S, Xiao H. Cloning, expression of, and evidence of positive selection for, the prolactin receptor gene in Chinese giant salamander (Andrias davidianus). JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2015; 324:707-19. [PMID: 26526303 DOI: 10.1002/jez.b.22659] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Accepted: 10/09/2015] [Indexed: 11/10/2022]
Abstract
Prolactin receptor (PRLR) is a protein associated with reproduction in mammals and with osmoregulation in fish. In this study, the complete length of Chinese giant salamander Andrias davidianus prolactin receptor (AD-prlr) was cloned. Andrias davidianus prlr expression was high in the kidney, pituitary, and ovary and low in other examined tissues. The AD-prlr levels were higher in ovary than in testis, and increased in ovaries with age from 1 to 6 years. To determine effect of exogenous androgen and aromatase inhibitor on AD-prlr expression, methyltestosterone (MT) and letrozole (LE) were injected, resulting in decreased AD-prlr in both brain and ovary, with MT repressing prlr transcription more rapidly than did LE. The molecular evolution of prlr was assessed, and found to have undergone a complex evolution process. The obranch-site test detected four positively selected sites in ancestral lineages prior to the separation of mammals and birds. Fourteen sites underwent positive selection in ancestral lineages of birds and six were positively selected in amphibians. The site model showed that 16, 7, and 30 sites underwent positive selection in extant mammals, amphibians, and birds, respectively. The positively selected sites in amphibians were located outside the transmembrane domain, with four in the extracellular and three in the intracellular domain, indicating that the transmembrane region might be conserved and essential for protein function. Our findings provide a basis for further studies of AD-prlr function and molecular evolution in Chinese giant salamander. J. Exp. Zool. (Mol. Dev. Evol.) 324B: 707-719, 2015. © 2015 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Qiaomu Hu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei, China.,Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
| | - Yan Meng
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei, China
| | - Haifeng Tian
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei, China
| | - Songlin Chen
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
| | - Hanbing Xiao
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei, China
| |
Collapse
|
22
|
Ma R, Jiang D, Chen Z, Kang B. Evidence of a role for prolactin as regulators of ovarian follicular development in goose. ELECTRON J BIOTECHN 2015. [DOI: 10.1016/j.ejbt.2015.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
23
|
Bu G, Liang X, Li J, Wang Y. Extra-pituitary prolactin (PRL) and prolactin-like protein (PRL-L) in chickens and zebrafish. Gen Comp Endocrinol 2015; 220:143-53. [PMID: 25683198 DOI: 10.1016/j.ygcen.2015.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 02/02/2015] [Accepted: 02/06/2015] [Indexed: 01/25/2023]
Abstract
It is generally believed that in vertebrates, prolactin (PRL) is predominantly synthesized and released by pituitary lactotrophs and plays important roles in many physiological processes via activation of PRL receptor (PRLR), including water and electrolyte balance, reproduction, growth and development, metabolism, immuno-modulation, and behavior. However, there is increasing evidence showing that PRL and the newly identified 'prolactin-like protein (PRL-L)', a novel ligand of PRL receptor, are also expressed in a variety of extra-pituitary tissues, such as the brain, skin, ovary, and testes in non-mammalian vertebrates. In this brief review, we summarize the recent research progress on the structure, biological activities, and extra-pituitary expression of PRL and PRL-L in chickens (Gallus gallus) and zebrafish (Danio rerio) from our and other laboratories and briefly discuss their potential paracrine/autocrine roles in non-mammalian vertebrates, which may promote us to rethink the broad spectrum of PRL actions previously attributed to pituitary PRL only.
Collapse
Affiliation(s)
- Guixian Bu
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, PR China
| | - Xiaomeng Liang
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, PR China
| | - Juan Li
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, PR China
| | - Yajun Wang
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, PR China.
| |
Collapse
|
24
|
Schennink A, Trott JF, Manjarin R, Lemay DG, Freking BA, Hovey RC. Comparative genomics reveals tissue-specific regulation of prolactin receptor gene expression. J Mol Endocrinol 2015; 54:1-15. [PMID: 25358647 DOI: 10.1530/jme-14-0212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Prolactin (PRL), acting via the PRL receptor (PRLR), controls hundreds of biological processes across a range of species. Endocrine PRL elicits well-documented effects on target tissues such as the mammary glands and reproductive organs in addition to coordinating whole-body homeostasis during states such as lactation or adaptive responses to the environment. While changes in PRLR expression likely facilitates these tissue-specific responses to circulating PRL, the mechanisms regulating this regulation in non-rodent species has received limited attention. We performed a wide-scale analysis of PRLR 5' transcriptional regulation in pig tissues. Apart from the abundantly expressed and widely conserved exon 1, we identified alternative splicing of transcripts from an additional nine first exons of the porcine PRLR (pPRLR) gene. Notably, exon 1.5 transcripts were expressed most abundantly in the heart, while expression of exon 1.3-containing transcripts was greatest in the kidneys and small intestine. Expression of exon 1.3 mRNAs within the kidneys was most abundant in the renal cortex, and increased during gestation. A comparative analysis revealed a human homologue to exon 1.3, hE1N2, which was also principally transcribed in the kidneys and small intestines, and an exon hE1N3 was only expressed in the kidneys of humans. Promoter alignment revealed conserved motifs within the proximal promoter upstream of exon 1.3, including putative binding sites for hepatocyte nuclear factor-1 and Sp1. Together, these results highlight the diverse, conserved and tissue-specific regulation of PRLR expression in the targets for PRL, which may function to coordinate complex physiological states such as lactation and osmoregulation.
Collapse
Affiliation(s)
- Anke Schennink
- Department of Animal ScienceGenome CenterUniversity of California Davis, 2335 Meyer Hall, One Shields Avenue, Davis, California 95616, USABaylor College of MedicineUSDA/ARS Children's Nutrition Research Center, 1100 Bates Street, Room 9022, Houston, Texas, USAUSDAARS, U.S. Meat Animal Research Center, PO Box 166, Clay Center, Nebraska 68933, USA
| | - Josephine F Trott
- Department of Animal ScienceGenome CenterUniversity of California Davis, 2335 Meyer Hall, One Shields Avenue, Davis, California 95616, USABaylor College of MedicineUSDA/ARS Children's Nutrition Research Center, 1100 Bates Street, Room 9022, Houston, Texas, USAUSDAARS, U.S. Meat Animal Research Center, PO Box 166, Clay Center, Nebraska 68933, USA
| | - Rodrigo Manjarin
- Department of Animal ScienceGenome CenterUniversity of California Davis, 2335 Meyer Hall, One Shields Avenue, Davis, California 95616, USABaylor College of MedicineUSDA/ARS Children's Nutrition Research Center, 1100 Bates Street, Room 9022, Houston, Texas, USAUSDAARS, U.S. Meat Animal Research Center, PO Box 166, Clay Center, Nebraska 68933, USA
| | - Danielle G Lemay
- Department of Animal ScienceGenome CenterUniversity of California Davis, 2335 Meyer Hall, One Shields Avenue, Davis, California 95616, USABaylor College of MedicineUSDA/ARS Children's Nutrition Research Center, 1100 Bates Street, Room 9022, Houston, Texas, USAUSDAARS, U.S. Meat Animal Research Center, PO Box 166, Clay Center, Nebraska 68933, USA
| | - Bradley A Freking
- Department of Animal ScienceGenome CenterUniversity of California Davis, 2335 Meyer Hall, One Shields Avenue, Davis, California 95616, USABaylor College of MedicineUSDA/ARS Children's Nutrition Research Center, 1100 Bates Street, Room 9022, Houston, Texas, USAUSDAARS, U.S. Meat Animal Research Center, PO Box 166, Clay Center, Nebraska 68933, USA
| | - Russell C Hovey
- Department of Animal ScienceGenome CenterUniversity of California Davis, 2335 Meyer Hall, One Shields Avenue, Davis, California 95616, USABaylor College of MedicineUSDA/ARS Children's Nutrition Research Center, 1100 Bates Street, Room 9022, Houston, Texas, USAUSDAARS, U.S. Meat Animal Research Center, PO Box 166, Clay Center, Nebraska 68933, USA
| |
Collapse
|
25
|
Luan X, Liu D, Cao Z, Luo L, Liu M, Gao M, Zhang X. Transcriptome profiling identifies differentially expressed genes in Huoyan goose ovaries between the laying period and ceased period. PLoS One 2014; 9:e113211. [PMID: 25419838 PMCID: PMC4242529 DOI: 10.1371/journal.pone.0113211] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 10/20/2014] [Indexed: 11/18/2022] Open
Abstract
The Huoyan goose is famous for its high egg-laying performance and is listed as a nationally protected domestic animal by the Chinese government. To elucidate the key regulatory genes involved in Huoyan goose egg laying, RNA from ovarian tissue during the ceased and laying periods was sequenced using the Illumina HiSeq 2000 sequencing platform. More than 12 million reads were produced in ceased and laying libraries that included 11,896,423 and 12,534,799 clean reads, respectively. More than 20% of the reads were matched to the reference genome, and 23% of the reads were matched to reference genes. Genes with a false discovery rate (FDR) ≤0.001 and log2ratio ≧1 or ≤−1 were characterized as differentially expressed, and 344 up-regulated and 344 down-regulated genes were classified into functional categories. Twelve genes that are mainly involved in pathways for reproduction regulation, such as steroid hormone biosynthesis, GnRH signaling pathways, oocyte meiosis, progesterone-mediated oocyte maturation, steroid biosynthesis, calcium signaling pathways, and G-protein coupled receptor signaling pathway were selected for validation by a quantitative real-time polymerase chain reaction (qRT-PCR) analysis, the qRT-PCR results are consistent with the general expression patterns of those genes from the Illumina sequencing. These data provide comprehensive gene expression information at the transcriptional level that might increase our understanding of the Huoyan goose's reproductive biology.
Collapse
Affiliation(s)
- Xinhong Luan
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
- * E-mail:
| | - Dawei Liu
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Zhongzan Cao
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Lina Luo
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Mei Liu
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Ming Gao
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Xiaoying Zhang
- Liaoning Province Livestock and Poultry Genetic Resources Conservation and Utilization Center, Liaoyang, 111000, China
| |
Collapse
|
26
|
Huang G, He C, Meng F, Li J, Zhang J, Wang Y. Glucagon-like peptide (GCGL) is a novel potential TSH-releasing factor (TRF) in Chickens: I) Evidence for its potent and specific action on stimulating TSH mRNA expression and secretion in the pituitary. Endocrinology 2014; 155:4568-80. [PMID: 25076122 DOI: 10.1210/en.2014-1331] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Our recent study proposed that the novel glucagon-like peptide (GCGL), encoded by a glucagon-like gene identified in chickens and other lower vertebrates, is likely a hypophysiotropic factor in nonmammalian vertebrates. To test this hypothesis, in this study, we investigated the GCGL action on chicken pituitaries. The results showed that: 1) GCGL, but not TRH, potently and specifically stimulates TSH secretion in intact pituitaries incubated in vitro or in cultured pituitary cells monitored by Western blotting or a cell-based luciferase reporter assay; 2) GCGL (0.1nM-10nM) dose dependently induces the mRNA expression of TSHβ but not 5 other hormone genes in cultured pituitary cells examined by quantitative real-time RT-PCR, an action likely mediated by intracellular adenylate cyclase/cAMP/protein kinase A and phospholipase C/inositol 1,4,5-trisphosphate/Ca(2+) signaling pathways coupled to GCGL receptor (GCGLR); 3) GCGLR mRNA is mainly localized in pituitary cephalic lobe demonstrated by in situ hybridization, where TSH-cells reside, further supporting a direct action of GCGL on thyrotrophs. The potent and specific action of GCGL on pituitary TSH expression and secretion, together with the partial accordance shown among the temporal expression profiles of GCGL in the hypothalamus and GCGLR and TSHβ in the pituitary, provides the first collective evidence that hypothalamic GCGL is most likely to be a novel TSH-releasing factor functioning in chickens. The discovery of this novel potential TSH-releasing factor (GCGL) in a nonmammalian vertebrate species, ie, chickens, would facilitate our comprehensive understanding of the hypothalamic control of pituitary-thyroid axis across vertebrates.
Collapse
Affiliation(s)
- Guian Huang
- Key Laboratory of Bioresources and Ecoenvironment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | | | | | | | | | | |
Collapse
|
27
|
Adán N, Ledesma-Colunga MG, Reyes-López AL, Martínez de la Escalera G, Clapp C. Arthritis and prolactin: a phylogenetic viewpoint. Gen Comp Endocrinol 2014; 203:132-6. [PMID: 24508497 DOI: 10.1016/j.ygcen.2014.01.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 01/14/2014] [Accepted: 01/24/2014] [Indexed: 12/16/2022]
Abstract
Arthritic disorders are family of diseases that have existed since vertebrate life began. Their etiology is multifactorial with genetic, environmental, and gender factors driving chronic joint inflammation. Prolactin is a sexually dimorphic hormone in mammals that can act to both promote and ameliorate rheumatic diseases. It is found in all vertebrate groups where it exerts a wide diversity of actions. This review briefly addresses the presence and features of arthritic diseases in vertebrates, the effects of PRL on joint tissues and immune cells, and whether PRL actions could have contributed to the ubiquity of arthritis in nature. This comparative approach highlights the value of PRL as a biologically conserved factor influencing the development and progression of arthritis.
Collapse
Affiliation(s)
- Norma Adán
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230 Querétaro, Mexico
| | - María G Ledesma-Colunga
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230 Querétaro, Mexico
| | - Ana L Reyes-López
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230 Querétaro, Mexico
| | | | - Carmen Clapp
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230 Querétaro, Mexico.
| |
Collapse
|
28
|
Bu G, Huang G, Fu H, Li J, Huang S, Wang Y. Characterization of the novel duplicated PRLR gene at the late-feathering K locus in Lohmann chickens. J Mol Endocrinol 2013; 51:261-76. [PMID: 23940279 DOI: 10.1530/jme-13-0068] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A partial duplication of the prolactin (PRL) receptor gene (designated as dPRLR) has been identified at the late-feathering (LF) K locus on chromosome Z of some chicken strains recently, implying that dPRLR is probably a candidate gene associated with LF development in chickens. However, little is known about the structure, functionality, and spatiotemporal expression of the dPRLR gene in chickens. In this study, using 3'-RACE and RT-PCR, the full-length cDNA of the dPRLR obtained from the kidneys of male Lohmann layer chickens carrying a K allele was cloned. The cloned dPRLR is predicted to encode a membrane-spanning receptor of 683 amino acids, which is nearly identical to the original PRLR, except for its lack of a 149-amino acid C-terminal tail. Using a 5× STAT5-Luciferase reporter system and western blot analysis, we demonstrated that dPRLR expressed in HepG2 cells could be potently activated by chicken PRL and functionally coupled to the intracellular STAT5 signaling pathway, suggesting that dPRLR may function as a novel receptor for PRL. RT-PCR assays revealed that similar to the original PRLR gene, dPRLR mRNA is widely expressed in all embryonic and adult tissues examined including the skin of male Lohmann chickens with a K allele. These findings, together with the expression of PRL mRNA detected in the skin of embryos at embryonic day 20 and 1-week-old chicks, suggest that skin-expressed dPRLR and PRLR, together with plasma and skin-derived PRL, may be involved in the control of the LF development of chicks at hatching. Moreover, the wide tissue expression of dPRLR implies that dPRLR may regulate other physiological processes of chickens carrying the K allele.
Collapse
Affiliation(s)
- Guixian Bu
- Key Laboratory of Bio-resources and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
| | | | | | | | | | | |
Collapse
|