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Metwalli AH, Pross A, Desfilis E, Abellán A, Medina L. Mapping of corticotropin-releasing factor, receptors, and binding protein mRNA in the chicken telencephalon throughout development. J Comp Neurol 2023. [PMID: 37393534 DOI: 10.1002/cne.25517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/11/2023] [Accepted: 06/10/2023] [Indexed: 07/03/2023]
Abstract
Understanding the neural mechanisms that regulate the stress response is critical to know how animals adapt to a changing world and is one of the key factors to be considered for improving animal welfare. Corticotropin-releasing factor (CRF) is crucial for regulating physiological and endocrine responses, triggering the activation of the sympathetic nervous system and the hypothalamo-pituitary-adrenal axis (HPA) during stress. In mammals, several telencephalic areas, such as the amygdala and the hippocampus, regulate the autonomic system and the HPA responses. These centers include subpopulations of CRF containing neurons that, by way of CRF receptors, play modulatory roles in the emotional and cognitive aspects of stress. CRF binding protein also plays a role, buffering extracellular CRF and regulating its availability. CRF role in activation of the HPA is evolutionary conserved in vertebrates, highlighting the relevance of this system to help animals cope with adversity. However, knowledge on CRF systems in the avian telencephalon is very limited, and no information exists on detailed expression of CRF receptors and binding protein. Knowing that the stress response changes with age, with important variations during the first week posthatching, the aim of this study was to analyze mRNA expression of CRF, CRF receptors 1 and 2, and CRF binding protein in chicken telencephalon throughout embryonic and early posthatching development, using in situ hybridization. Our results demonstrate an early expression of CRF and its receptors in pallial areas regulating sensory processing, sensorimotor integration and cognition, and a late expression in subpallial areas regulating the stress response. However, CRF buffering system develops earlier in the subpallium than in the pallium. These results help to understand the mechanisms underlying the negative effects of noise and light during prehatching stages in chicken, and suggest that stress regulation becomes more sophisticated with age.
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Affiliation(s)
- Alek H Metwalli
- Department of Experimental Medicine, Universitat de Lleida, Lleida, Spain
- Laboratory of Evolutionary and Developmental Neurobiology, Lleida's Institute for Biomedical Research-Dr. Pifarré Foundation (IRBLleida), Lleida, Catalonia, Spain
| | - Alessandra Pross
- Department of Experimental Medicine, Universitat de Lleida, Lleida, Spain
- Laboratory of Evolutionary and Developmental Neurobiology, Lleida's Institute for Biomedical Research-Dr. Pifarré Foundation (IRBLleida), Lleida, Catalonia, Spain
| | - Ester Desfilis
- Department of Experimental Medicine, Universitat de Lleida, Lleida, Spain
- Laboratory of Evolutionary and Developmental Neurobiology, Lleida's Institute for Biomedical Research-Dr. Pifarré Foundation (IRBLleida), Lleida, Catalonia, Spain
| | - Antonio Abellán
- Department of Experimental Medicine, Universitat de Lleida, Lleida, Spain
- Laboratory of Evolutionary and Developmental Neurobiology, Lleida's Institute for Biomedical Research-Dr. Pifarré Foundation (IRBLleida), Lleida, Catalonia, Spain
| | - Loreta Medina
- Department of Experimental Medicine, Universitat de Lleida, Lleida, Spain
- Laboratory of Evolutionary and Developmental Neurobiology, Lleida's Institute for Biomedical Research-Dr. Pifarré Foundation (IRBLleida), Lleida, Catalonia, Spain
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Bu G, Lin Y, Liu J, Yu P, Yong T, Yang M, Huang L, Han X, Du X, Kong F, Huang A, Zeng X, Meng F. Evidence for progesterone acting as an inhibitor of stress axis via stimulating pituitary neuropeptide B/W receptor 2 (NPBWR2) expression in chickens. J Steroid Biochem Mol Biol 2023; 226:106218. [PMID: 36368625 DOI: 10.1016/j.jsbmb.2022.106218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/03/2022] [Accepted: 11/06/2022] [Indexed: 11/09/2022]
Abstract
In vertebrates, the hypothalamus-pituitary-adrenal gland (HPA) axis is the main endocrine pathway regulating the stress response, thus also called the stress axis. It has been well-accepted that the stress axis is tightly controlled by both hypothalamic stimulators and inhibitors [e.g. corticotropin (ACTH)-releasing inhibitory factor (CRIF)]. However, the identity of authentic CRIF remains unclear for decades. Recently, neuropeptide W (NPW) was proved to be the physiological CRIF in chickens. Together with its functional receptor (NPBWR2), they play critical roles in attenuating the activity of the chicken stress axis. Because increasing pieces of evidence suggested that sex steroids could regulate the stress axis, using chicken as a model, we investigated whether the newly identified CRIF and its receptor are under the control of sex steroids in this study. Our results showed that: (1) expression of NPW-NPBWR2 in the hypothalamus-pituitary axis was sexually dimorphic and developmental stage-dependent; (2) progesterone (P4), rather than 17β-estradiol (E2) and dihydrotestosterone (DHT), could dose- and time-dependently upregulate NPBWR2 expression, which was accompanied with the decrease of ACTH synthesis and secretion, in cultured pituitary cells; (3) intraperitoneal injection of P4 could elevate the mRNA level of pituitary NPBWR2; (4) P4-stimulated NPBWR2 expression was relevant to both nPR-mediated genomic action and mPRs-triggered nongenomic route associated with MEK/ERK, PI3K/AKT cascade, and calcium influx. To our knowledge, our results discover a novel route of sex steroids in modulating the stress axis of chickens, which lays a foundation to reveal the complicated interaction network between reproduction and stress axes in chickens.
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Affiliation(s)
- Guixian Bu
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China.
| | - Ying Lin
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Jianfeng Liu
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Pan Yu
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Tao Yong
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Ming Yang
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Linyan Huang
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Xingfa Han
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Xiaogang Du
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Fanli Kong
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Anqi Huang
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Xianyin Zeng
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China
| | - Fengyan Meng
- College of Life Science, Sichuan Agricultural University, Ya'an 625014, PR China.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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:
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Jia Z, Jin Z, Shao S, Xu H, Li W, Khan M, Wang W, Zhang W, Sun Y. KLF7 promotes preadipocyte proliferation via activation of the Akt signaling pathway by Cis-regulating CDKN3. Acta Biochim Biophys Sin (Shanghai) 2022; 54:1486-96. [PMID: 36269137 DOI: 10.3724/abbs.2022144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Krüppel-like transcription factor 7 (KLF7) promotes preadipocyte proliferation; however, its target gene in this process has not yet been identified. Using KLF7 ChIP-seq analysis, we previously showed that a KLF7-binding peak is present upstream of the cyclin-dependent kinase inhibitor 3 gene ( CDKN3) in chicken preadipocytes. In the present study, we identify CDKN3 as a target gene of KLF7 that mediates the effects of KLF7 on preadipocyte proliferation. Furthermore, 5'-truncating mutation analysis shows that the minimal promoter is located between nt -160 and nt -7 (relative to the translation initiation codon ATG) of CDKN3. KLF7 overexpression increases CDKN3 promoter activity in the DF-1 and immortalized chicken preadipocyte (ICP1) cell lines. Deletion of the putative binding site of KLF7 abolishes the promotive effect of KLF7 overexpression on CDKN3 promoter activity. Moreover, CDKN3 knockdown and overexpression assays reveal that CDKN3 enhances ICP1 cell proliferation. Flow cytometry analysis shows that CDKN3 accelerates the G1/S transition. Furthermore, we find that KLF7 promotes ICP1 cell proliferation via Akt phosphorylation by regulating CDKN3. Taken together, our results suggest that KLF7 promotes preadipocyte proliferation by activating the Akt signaling pathway by cis-regulating CDKN3, thus driving the G1/S transition.
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Kadhim HJ, Kuenzel WJ. Interaction between the hypothalamo-pituitary-adrenal and thyroid axes during immobilization stress. Front Physiol 2022; 13:972171. [DOI: 10.3389/fphys.2022.972171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 10/06/2022] [Indexed: 11/13/2022] Open
Abstract
The location of corticotropin-releasing hormone receptor 2 (CRH-R2) on thyrotropes within the avian anterior pituitary (APit) and its activation by different stressors indicate a possible communication between hypothalamo-pituitary-adrenal (HPA) and thyroid (HPT) axes. Therefore, an experiment was designed to 1) compare the timing of major components of the HPT axis to those of the HPA axis; 2) address whether stressors activating the HPA axis may simultaneously upregulate components of the HPT axis. Blood, brain, and APit were sampled from chicks prior to stress (control) and 15, 30, 60, 90, and 120 min following immobilization (IM) stress. The nucleus of the hippocampal commissure (NHpC) and paraventricular nucleus (PVN) were cryo-dissected from brains for RT-qPCR. Gene expression of thyrotropin-releasing hormone (TRH) and its receptors (TRH-R1 and TRH-R3), urocortin3 (UCN3), deiodinase 2 (D2), and the second type of corticotropin-releasing hormone (CRH2) within the NHpC and PVN was measured. Additionally, gene expression of TRH receptors, thyroid stimulating hormone subunit beta (TSHβ), and D2 was determined in the APit and corticosterone assayed in blood. In brains, a significant upregulation in examined genes occurred at different times of IM. Specifically, UCN3 and CRH2 which have a high affinity to CRH-R2 showed a rapid increase in their mRNA levels that were accompanied by an early upregulation of TRHR1 in the NHpC. In the APit, a significant increase in gene expression of TSHβ and TRH receptors was observed. Therefore, results supported concurrent activation of major brain and APit genes associated with the HPA and HPT axes following IM. The initial neural gene expression originating within the NHpC resulted in the increase of TSHβ mRNA in the APit. Specifically, the rapid upregulation of UCN3 in the NHpC appeared responsible for the early activation of TSHβ in the APit. While sustaining TSHβ activation appeared to be due to both CRH2 and TRH. Therefore, data indicate that CRH-producing neurons and corticotropes as well as CRH- and TRH-producing neurons and thyrotropes are activated to produce the necessary energy required to maintain homeostasis in birds undergoing stress. Overall, data support the inclusion of the NHpC in the classical avian HPA axis and for the first time show the concurrent activation of the HPA axis and components of the HPT axis following a psychogenic stressor.
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Wan Y, Zhang Z, Lin D, Wang X, Huang T, Su J, Zhang J, Li J, Wang Y. Characterization of CRH-Binding Protein (CRHBP) in Chickens: Molecular Cloning, Tissue Distribution and Investigation of Its Role as a Negative Feedback Regulator within the Hypothalamus–Pituitary–Adrenal Axis. Genes (Basel) 2022; 13:1680. [PMID: 36292565 PMCID: PMC9601729 DOI: 10.3390/genes13101680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 09/13/2022] [Accepted: 09/16/2022] [Indexed: 01/08/2023] Open
Abstract
Corticotropin (ACTH) is a pituitary hormone playing important roles in stress response within the hypothalamus–pituitary–adrenal (HPA) axis. The biosynthesis and secretion of ACTH are controlled by multiple factors, including corticotropin-releasing hormone (CRH). As a key hypothalamus-derived regulator, CRH binds to corticotropin-releasing hormone receptor 1 (CRHR1) in the anterior pituitary gland to regulate ACTH synthesis and release. Thus, CRH-binding protein (CRHBP), which binds CRH with high affinity to inhibit CRH-induced ACTH secretion from pituitary cells, draws wide attention. In contrast to the extensive investigation of CRHBP in mammals and other lower vertebrates, the gene structure, tissue expression and physiological functions of CRHBP in birds remain largely unknown. In the present study, using chicken (c-) as our animal model, we examined the gene structure, tissue expression and functionality of CRHBP. Our results showed that: (1) cCRHBP cDNA encodes a 345 amino acid precursor, which shares high sequence identity with that of mammals, reptiles, frogs and fish; (2) cCRHBP is abundantly expressed in the brain (cerebrum and hypothalamus), pituitary and ovary; (3) cCRHBP inhibits the signaling of cCRHRs induced by cCRH, thus reducing the cCRH-induced ACTH secretion from cultured chick pituitary cells; (4) stress mediators (e.g., glucocorticoids) and stress significantly upregulate CRHBP mRNA expression in chickens, supporting its role as a negative feedback regulator in the HPA axis. The present study enriches our understanding of the conserved roles of CRHBP across vertebrates. In addition, chicken is an important poultry animal with multiple economic traits which are tightly controlled by the HPA axis. The characterization of the chicken CRHBP gene helps to reveal the molecular basis of the chicken HPA axis and is thus beneficial to the poultry industry.
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Coskuner-weber O, Mirzanli O, Uversky VN. Intrinsically disordered proteins and proteins with intrinsically disordered regions in neurodegenerative diseases. Biophys Rev. [DOI: 10.1007/s12551-022-00968-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/28/2022] [Indexed: 12/14/2022] Open
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Maugars G, Mauvois X, Martin P, Aroua S, Rousseau K, Dufour S. New Insights Into the Evolution of Corticotropin-Releasing Hormone Family With a Special Focus on Teleosts. Front Endocrinol (Lausanne) 2022; 13:937218. [PMID: 35937826 PMCID: PMC9353778 DOI: 10.3389/fendo.2022.937218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/09/2022] [Indexed: 11/30/2022] Open
Abstract
Corticotropin-releasing hormone (CRH) was discovered for its role as a brain neurohormone controlling the corticotropic axis in vertebrates. An additional crh gene, crh2, paralog of crh (crh1), and likely resulting from the second round (2R) of vertebrate whole genome duplication (WGD), was identified in a holocephalan chondrichthyan, in basal mammals, various sauropsids and a non-teleost actinopterygian holostean. It was suggested that crh2 has been recurrently lost in some vertebrate groups including teleosts. We further investigated the fate of crh1 and crh2 in vertebrates with a special focus on teleosts. Phylogenetic and synteny analyses showed the presence of duplicated crh1 paralogs, crh1a and crh1b, in most teleosts, resulting from the teleost-specific WGD (3R). Crh1b is conserved in all teleosts studied, while crh1a has been lost independently in some species. Additional crh1 paralogs are present in carps and salmonids, resulting from specific WGD in these lineages. We identified crh2 gene in additional vertebrate groups such as chondrichthyan elasmobranchs, sarcopterygians including dipnoans and amphibians, and basal actinoperygians, Polypteridae and Chondrostei. We also revealed the presence of crh2 in teleosts, including elopomorphs, osteoglossomorphs, clupeiforms, and ostariophysians, while it would have been lost in Euteleostei along with some other groups. To get some insights on the functional evolution of the crh paralogs, we compared their primary and 3D structure, and by qPCR their tissue distribution, in two representative species, the European eel, which possesses three crh paralogs (crh1a, crh1b, crh2), and the Atlantic salmon, which possesses four crh paralogs of the crh1-type. All peptides conserved the structural characteristics of human CRH. Eel crh1b and both salmon crh1b genes were mainly expressed in the brain, supporting the major role of crh1b paralogs in controlling the corticotropic axis in teleosts. In contrast, crh1a paralogs were mainly expressed in peripheral tissues such as muscle and heart, in eel and salmon, reflecting a striking subfunctionalization between crh1a and b paralogs. Eel crh2 was weakly expressed in the brain and peripheral tissues. These results revisit the repertoire of crh in teleosts and highlight functional divergences that may have contributed to the differential conservation of various crh paralogs in teleosts.
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Affiliation(s)
- Gersende Maugars
- Muséum National d’Histoire Naturelle, Unité Mixte de Recherche Biologie des Organismes et Ecosystèmes Aquatiques (UMR BOREA), Biology of Aquatic Organisms and Ecosystems, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Sorbonne Université, Paris, France
- Université Le Havre Normandie - Stress Environnementaux et Biosurveillance des milieux aquatiques UMR-I 02SEBIO -FR CNRS 3730 SCALE, Le Havre, France
- *Correspondence: Gersende Maugars,
| | - Xavier Mauvois
- Muséum National d’Histoire Naturelle, Unité Mixte de Recherche Biologie des Organismes et Ecosystèmes Aquatiques (UMR BOREA), Biology of Aquatic Organisms and Ecosystems, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Sorbonne Université, Paris, France
| | - Patrick Martin
- Conservatoire National du Saumon Sauvage (CNSS), Chanteuges, France
| | - Salima Aroua
- Université Le Havre Normandie - Stress Environnementaux et Biosurveillance des milieux aquatiques UMR-I 02SEBIO -FR CNRS 3730 SCALE, Le Havre, France
| | - Karine Rousseau
- Muséum National d’Histoire Naturelle, Unité Mixte de Recherche Biologie des Organismes et Ecosystèmes Aquatiques (UMR BOREA), Biology of Aquatic Organisms and Ecosystems, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Sorbonne Université, Paris, France
| | - Sylvie Dufour
- Muséum National d’Histoire Naturelle, Unité Mixte de Recherche Biologie des Organismes et Ecosystèmes Aquatiques (UMR BOREA), Biology of Aquatic Organisms and Ecosystems, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Sorbonne Université, Paris, France
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Zhang J, Lv C, Mo C, Liu M, Wan Y, Li J, Wang Y. Single-Cell RNA Sequencing Analysis of Chicken Anterior Pituitary: A Bird's-Eye View on Vertebrate Pituitary. Front Physiol 2021; 12:562817. [PMID: 34267669 PMCID: PMC8276247 DOI: 10.3389/fphys.2021.562817] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 05/21/2021] [Indexed: 01/08/2023] Open
Abstract
It is well-established that anterior pituitary contains multiple endocrine cell populations, and each of them can secrete one/two hormone(s) to regulate vital physiological processes of vertebrates. However, the gene expression profiles of each pituitary cell population remains poorly characterized in most vertebrate groups. Here we analyzed the transcriptome of each cell population in adult chicken anterior pituitaries using single-cell RNA sequencing technology. The results showed that: (1) four out of five known endocrine cell clusters have been identified and designated as the lactotrophs, thyrotrophs, corticotrophs, and gonadotrophs, respectively. Somatotrophs were not analyzed in the current study. Each cell cluster can express at least one known endocrine hormone, and novel marker genes (e.g., CD24 and HSPB1 in lactotrophs, NPBWR2 and NDRG1 in corticotrophs; DIO2 and SOUL in thyrotrophs, C5H11ORF96 and HPGDS in gonadotrophs) are identified. Interestingly, gonadotrophs were shown to abundantly express five peptide hormones: FSH, LH, GRP, CART and RLN3; (2) four non-endocrine/secretory cell types, including endothelial cells (expressing IGFBP7 and CFD) and folliculo-stellate cells (FS-cells, expressing S100A6 and S100A10), were identified in chicken anterior pituitaries. Among them, FS-cells can express many growth factors, peptides (e.g., WNT5A, HBEGF, Activins, VEGFC, NPY, and BMP4), and progenitor/stem cell-associated genes (e.g., Notch signaling components, CDH1), implying that the FS-cell cluster may act as a paracrine/autocrine signaling center and enrich pituitary progenitor/stem cells; (3) sexually dimorphic expression of many genes were identified in most cell clusters, including gonadotrophs and lactotrophs. Taken together, our data provides a bird's-eye view on the diverse aspects of anterior pituitaries, including cell composition, heterogeneity, cell-to-cell communication, and gene expression profiles, which facilitates our comprehensive understanding of vertebrate pituitary biology.
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Affiliation(s)
- Jiannan Zhang
- Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Can Lv
- Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Chunheng Mo
- Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Meng Liu
- Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yiping Wan
- Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Juan Li
- Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yajun Wang
- Key Laboratory of Bio-Resources and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
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Grone BP, Butler JM, Wayne CR, Maruska KP. Expression patterns and evolution of urocortin and corticotropin‐releasing hormone genes in a cichlid fish. J Comp Neurol 2021; 529:2596-2619. [DOI: 10.1002/cne.25113] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/20/2020] [Accepted: 12/13/2020] [Indexed: 12/11/2022]
Affiliation(s)
| | - Julie M. Butler
- Department of Biological Sciences Louisiana State University Baton Rouge Louisiana USA
- Department of Biology Stanford University Stanford California USA
| | - Christy R. Wayne
- Department of Biological Sciences Louisiana State University Baton Rouge Louisiana USA
| | - Karen P. Maruska
- Department of Biological Sciences Louisiana State University Baton Rouge Louisiana USA
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Romero-Leguizamón CR, Kohlmeier KA. Stress-related endogenous neuropeptides induce neuronal excitation in the Laterodorsal Tegmentum. Eur Neuropsychopharmacol 2020; 38:86-97. [PMID: 32768153 DOI: 10.1016/j.euroneuro.2020.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/29/2020] [Accepted: 07/16/2020] [Indexed: 01/07/2023]
Abstract
Stress is a physiological response that promotes maintenance of balance against harmful stimuli. Unfortunately, chronic activation of stress systems facilitates the development of psychiatric disorders. A stress-mediated hypercholinergic state could underlie this facilitation, as cholinergic mechanisms have been suggested to play a role in anxiety, depression, and substance use disorder (SUD). Stimulation by stress hormones, urocortin (Ucn1) or corticotropin-releasing factor (CRF), of the CRF receptor type 1 (CRFR1) of acetylcholine-containing neurons of the laterodorsal tegmental nucleus (LDT) could be involved in modulation of cholinergic transmission during periods of stress hormone activation, which could play a role in psychiatric disorders as cholinergic LDT neurons project to, and control activity in, mood-, arousal- and SUD-controlling regions. The present study investigated for the first time the membrane effects and intracellular outcomes of CRFR1 activation by endogenous stress hormones on LDT neurons. Patch clamp recordings of immunohistochemically-identified cholinergic and non-cholinergic LDT neurons with concurrent calcium imaging were used to monitor cellular responses to CRFR1 stimulation with Ucn1 and CRF. Postsynaptically-mediated excitatory currents were elicited in LDT cholinergic neurons, accompanied by an enhancement in synaptic events. In addition, CRFR1 activation resulted in rises in intracellular calcium levels. CRFR1 stimulation recruited MAPK/ERK and SERCA-ATPase involved pathways. The data presented here provide the first evidence that Ucn1 and CRF exert pre and postsynaptic excitatory membrane actions on LDT cholinergic neurons that could underlie the hypercholinergic state associated with stress which could play a role in the heightened risk of psychiatric disorders associated with a chronic stress state.
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Affiliation(s)
- Cesar R Romero-Leguizamón
- Department of Drug Design and Pharmacology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, 2100, Denmark
| | - Kristi A Kohlmeier
- Department of Drug Design and Pharmacology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, 2100, Denmark.
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