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Dang W, Gao D, Lyu G, Irwin DM, Shang S, Chen J, Zhang J, Zhang S, Wang Z. A Nonsynonymous Substitution of Lhx3 Leads to Changes in Body Size in Dogs and Mice. Genes (Basel) 2024; 15:739. [PMID: 38927675 PMCID: PMC11202965 DOI: 10.3390/genes15060739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 05/30/2024] [Accepted: 06/01/2024] [Indexed: 06/28/2024] Open
Abstract
Lhx3 is a LIM-homeodomain transcription factor that affects body size in mammals by regulating the secretion of pituitary hormones. Akita, Shiba Inu, and Mame Shiba Inu dogs are Japanese native dog breeds that have different body sizes. To determine whether Lhx3 plays a role in the differing body sizes of these three dog breeds, we sequenced the Lhx3 gene in the three breeds, which led to the identification of an SNP in codon 280 (S280N) associated with body size. The allele frequency at this SNP differed significantly between the large Akita and the two kinds of smaller Shiba dogs. To validate the function of this SNP on body size, we introduced this change into the Lhx3 gene of mice. Homozygous mutant mice (S279N+/+) were found to have significantly increased body lengths and weights compared to heterozygous mutant (S279N+/-) and wild-type (S279N-/-) mice several weeks after weaning. These results demonstrate that a nonsynonymous substitution in Lhx3 plays an important role in regulating body size in mammals.
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Affiliation(s)
- Wanyi Dang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Dali Gao
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Guangqi Lyu
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - David M. Irwin
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Songyang Shang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Junnan Chen
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Junpeng Zhang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Shuyi Zhang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Zhe Wang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
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Mao S, Dong S, Hou B, Li Y, Sun B, Guo Y, Deng M, Liu D, Liu G. Transcriptome analysis reveals pituitary lncRNA, circRNA and mRNA affecting fertility in high- and low-yielding goats. Front Genet 2023; 14:1303031. [PMID: 38152654 PMCID: PMC10751935 DOI: 10.3389/fgene.2023.1303031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/01/2023] [Indexed: 12/29/2023] Open
Abstract
The pituitary gland serves as the central endocrine regulator of growth, reproduction, and metabolism and plays a crucial role in the reproductive process of female animals. Transcriptome analysis was conducted using pituitary gland samples from Leizhou goats with varying levels of fecundity to investigate the effects of long noncoding RNA (lncRNA), circular RNA (circRNA), and mRNA regulation on pituitary hormone secretion and its association with goat fecundity. The analysis aimed to identify lncRNAs, circRNAs, and mRNAs that influence the fertility of Leizhou goats. GO and KEGG enrichment analyses were performed on differentially expressed lncRNAs, circRNAs, and mRNAs and revealed considerable enrichment in pathways, such as regulation of hormone secretion, germ cell development, and gonadotropin-releasing hormone secretion. The pituitary lncRNAs (ENSCHIT00000010293, ENSCHIT00000010304, ENSCHIT00000010306, ENSCHIT00000010290, ENSCHIT00000010298, ENSCHIT00000006769, ENSCHIT00000006767, ENSCHIT00000006921, and ENSCHIT00000001330) and circRNAs (chicirc_029285, chicirc_026618, chicirc_129655, chicirc_018248, chicirc_122554, chicirc_087101, and chicirc_078945) identified as differentially expressed regulated hormone secretion in the pituitary through their respective host genes. Additionally, differential mRNAs (GABBR2, SYCP1, HNF4A, CBLN1, and CDKN1A) influenced goat fecundity by affecting hormone secretion in the pituitary gland. These findings contribute to the understanding of the molecular mechanisms underlying pituitary regulation of fecundity in Leizhou goats.
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Affiliation(s)
| | | | | | | | | | | | | | - Dewu Liu
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Guangbin Liu
- College of Animal Science, South China Agricultural University, Guangzhou, China
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Lee Y, Yeo IS, Kim N, Lee DK, Kim KT, Yoon J, Yi J, Hong YB, Choi BO, Kosodo Y, Kim D, Park J, Song MR. Transcriptional control of motor pool formation and motor circuit connectivity by the LIM-HD protein Isl2. eLife 2023; 12:e84596. [PMID: 37869988 PMCID: PMC10637776 DOI: 10.7554/elife.84596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 10/11/2023] [Indexed: 10/24/2023] Open
Abstract
The fidelity of motor control requires the precise positional arrangement of motor pools and the establishment of synaptic connections between them. During neural development in the spinal cord, motor nerves project to specific target muscles and receive proprioceptive input from these muscles via the sensorimotor circuit. LIM-homeodomain transcription factors are known to play a crucial role in successively restricting specific motor neuronal fates. However, their exact contribution to limb-based motor pools and locomotor circuits has not been fully understood. To address this, we conducted an investigation into the role of Isl2, a LIM-homeodomain transcription factor, in motor pool organization. We found that deletion of Isl2 led to the dispersion of motor pools, primarily affecting the median motor column (MMC) and lateral motor column (LMC) populations. Additionally, hindlimb motor pools lacked Etv4 expression, and we observed reduced terminal axon branching and disorganized neuromuscular junctions in Isl2-deficient mice. Furthermore, we performed transcriptomic analysis on the spinal cords of Isl2-deficient mice and identified a variety of downregulated genes associated with motor neuron (MN) differentiation, axon development, and synapse organization in hindlimb motor pools. As a consequence of these disruptions, sensorimotor connectivity and hindlimb locomotion were impaired in Isl2-deficient mice. Taken together, our findings highlight the critical role of Isl2 in organizing motor pool position and sensorimotor circuits in hindlimb motor pools. This research provides valuable insights into the molecular mechanisms governing motor control and its potential implications for understanding motor-related disorders in humans.
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Affiliation(s)
- Yunjeong Lee
- School of Life Sciences, Gwangju Institute of Science and Technology, Oryong-dong, Buk-guGwangjuRepublic of Korea
| | - In Seo Yeo
- School of Life Sciences, Gwangju Institute of Science and Technology, Oryong-dong, Buk-guGwangjuRepublic of Korea
| | - Namhee Kim
- Fermentation Regulation Technology Research Group, World Institute of KimchiGwangjuRepublic of Korea
| | - Dong-Keun Lee
- School of Life Sciences, Gwangju Institute of Science and Technology, Oryong-dong, Buk-guGwangjuRepublic of Korea
| | - Kyung-Tai Kim
- Jeonbuk Department of Inhalation Research, Korea Institute of ToxicologyJeongeup-siRepublic of Korea
| | - Jiyoung Yoon
- School of Life Sciences, Gwangju Institute of Science and Technology, Oryong-dong, Buk-guGwangjuRepublic of Korea
| | - Jawoon Yi
- School of Life Sciences, Gwangju Institute of Science and Technology, Oryong-dong, Buk-guGwangjuRepublic of Korea
| | - Young Bin Hong
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of MedicineSeoulRepublic of Korea
- Department of Biochemistry, College of Medicine, Dong-A UniversityBusanRepublic of Korea
| | - Byung-Ok Choi
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Yoichi Kosodo
- Korea Brain Research InstituteDaeguRepublic of Korea
| | - Daesoo Kim
- Department of Brain and Cognitive Sciences, Korea Advanced Institute of Science and Technology (KAIST)DaejeonRepublic of Korea
| | - Jihwan Park
- School of Life Sciences, Gwangju Institute of Science and Technology, Oryong-dong, Buk-guGwangjuRepublic of Korea
| | - Mi-Ryoung Song
- School of Life Sciences, Gwangju Institute of Science and Technology, Oryong-dong, Buk-guGwangjuRepublic of Korea
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Brinkmeier ML, Bando H, Camarano AC, Fujio S, Yoshimoto K, de Souza FS, Camper SA. Rathke's cleft-like cysts arise from Isl1 deletion in murine pituitary progenitors. J Clin Invest 2021; 130:4501-4515. [PMID: 32453714 DOI: 10.1172/jci136745] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 05/14/2020] [Indexed: 12/15/2022] Open
Abstract
The transcription factor ISL1 is expressed in pituitary gland stem cells and the thyrotrope and gonadotrope lineages. Pituitary-specific Isl1 deletion causes hypopituitarism with increased stem cell apoptosis, reduced differentiation of thyrotropes and gonadotropes, and reduced body size. Conditional Isl1 deletion causes development of multiple Rathke's cleft-like cysts, with 100% penetrance. Foxa1 and Foxj1 are abnormally expressed in the pituitary gland and associated with a ciliogenic gene-expression program in the cysts. We confirmed expression of FOXA1, FOXJ1, and stem cell markers in human Rathke's cleft cyst tissue, but not craniopharyngiomas, which suggests these transcription factors are useful, pathological markers for diagnosis of Rathke's cleft cysts. These studies support a model whereby expression of ISL1 in pituitary progenitors drives differentiation into thyrotropes and gonadotropes and without it, activation of FOXA1 and FOXJ1 permits development of an oral epithelial cell fate with mucinous cysts. This pituitary-specific Isl1 mouse knockout sheds light on the etiology of Rathke's cleft cysts and the role of ISL1 in normal pituitary development.
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Affiliation(s)
- Michelle L Brinkmeier
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Hironori Bando
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Adriana C Camarano
- Institute of Physiology, Molecular Biology, and Neurosciences-IFIBYNE-CONICET, Pabellon IFIBYNE, Ciudad Universitaria, Buenos Aires, Argentina
| | - Shingo Fujio
- Graduate School of Medical and Dental Sciences, Department of Neurosurgery, Kagoshima University, Kagoshima, Japan
| | - Koji Yoshimoto
- Graduate School of Medical and Dental Sciences, Department of Neurosurgery, Kagoshima University, Kagoshima, Japan
| | - Flávio Sj de Souza
- Institute of Physiology, Molecular Biology, and Neurosciences-IFIBYNE-CONICET, Pabellon IFIBYNE, Ciudad Universitaria, Buenos Aires, Argentina
| | - Sally A Camper
- Department of Human Genetics, University of Michigan Medical School, Ann Arbor, Michigan, USA
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LIM Homeobox 4 (lhx4) regulates retinal neural differentiation and visual function in zebrafish. Sci Rep 2021; 11:1977. [PMID: 33479361 PMCID: PMC7820405 DOI: 10.1038/s41598-021-81211-w] [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: 08/20/2020] [Accepted: 01/04/2021] [Indexed: 01/29/2023] Open
Abstract
LIM homeobox 4 (LHX4) is expressed in the photoreceptors (PRs) of the outer nuclear layer (ONL) and bipolar cells (BCs) of the inner nuclear layer (INL) in mouse and chicken retina. It regulates the subtype-specific development of rod BCs and cone BCs in the mouse retina. However, no report has been published on its expression and function in the zebrafish retina. In this study, we assessed the expression of Lhx4 using in situ hybridization (ISH) technique and explored its role in zebrafish (Danio rerio) retinal development via morpholino (MO) technology. We found that the expression of lhx4 in the zebrafish retina begins 48 h post-fertilization (hpf) and is continuously expressed in the ONL and INL. A zebrafish model constructed with lhx4 knockdown in the eyes through vivo-MO revealed that: lhx4 knockdown inhibits the differentiation of Parvalbumin+ amacrine cells (ACs) and Rhodopsin+ rod photoreceptors (RPs), enhances the expression of visual system homeobox 2 (vsx2); and damages the responses of zebrafish to light stimulus, without affecting the differentiation of OFF-BCs and rod BCs, and apoptosis in the retina. These findings reveal that lhx4 regulates neural differentiation in the retina and visual function during zebrafish embryonic development.
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Gergics P. Pituitary Transcription Factor Mutations Leading to Hypopituitarism. EXPERIENTIA SUPPLEMENTUM (2012) 2019; 111:263-298. [PMID: 31588536 DOI: 10.1007/978-3-030-25905-1_13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Congenital pituitary hormone deficiency is a disabling condition. It is part of a spectrum of disorders including craniofacial midline developmental defects ranging from holoprosencephaly through septo-optic dysplasia to combined and isolated pituitary hormone deficiency. The first genes discovered in the human disease were based on mouse models of dwarfism due to mutations in transcription factor genes. High-throughput DNA sequencing technologies enabled clinicians and researchers to find novel genetic causes of hypopituitarism for the more than three quarters of patients without a known genetic diagnosis to date. Transcription factor (TF) genes are at the forefront of the functional analysis of novel variants of unknown significance due to the relative ease in in vitro testing in a research lab. Genetic testing in hypopituitarism is of high importance to the individual and their family to predict phenotype composition, disease progression and to avoid life-threatening complications such as secondary adrenal insufficiency.This chapter aims to highlight our current understanding about (1) the contribution of TF genes to pituitary development (2) the diversity of inheritance and phenotype features in combined and select isolated pituitary hormone deficiency and (3) provide an initial assessment on how to approach variants of unknown significance in human hypopituitarism. Our better understanding on how transcription factor gene variants lead to hypopituitarism is a meaningful step to plan advanced therapies to specific genetic changes in the future.
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Affiliation(s)
- Peter Gergics
- Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA.
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Youngblood JL, Coleman TF, Davis SW. Regulation of Pituitary Progenitor Differentiation by β-Catenin. Endocrinology 2018; 159:3287-3305. [PMID: 30085028 DOI: 10.1210/en.2018-00563] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 07/24/2018] [Indexed: 02/06/2023]
Abstract
The pituitary gland is a critical organ that is necessary for many physiological processes, including growth, reproduction, and stress response. The secretion of pituitary hormones from specific cell types regulates these essential processes. Pituitary hormone cell types arise from a common pool of pituitary progenitors, and mutations that disrupt the formation and differentiation of pituitary progenitors result in hypopituitarism. Canonical WNT signaling through CTNNB1 (β-catenin) is known to regulate the formation of the POU1F1 lineage of pituitary cell types. When β-catenin is deleted during the initial formation of the pituitary progenitors, Pou1f1 is not transcribed, which leads to the loss of the POU1F1 lineage. However, when β-catenin is deleted after lineage specification, there is no observable effect. Similarly, the generation of a β-catenin gain-of-function allele in early pituitary progenitors or stem cells results in the formation of craniopharyngiomas, whereas stimulating β-catenin in differentiated cell types has no effect. PROP1 is a pituitary-specific transcription factor, and the peak of PROP1 expression coincides with a critical time point in pituitary organogenesis-that is, after pituitary progenitor formation but before lineage specification. We used a Prop1-cre to conduct both loss- and gain-of-function studies on β-catenin during this critical time point. Our results demonstrate that pituitary progenitors remain sensitive to both loss and gain of β-catenin at this time point, and that either manipulation results in hypopituitarism.
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Affiliation(s)
- Julie L Youngblood
- Department of Biological Sciences, University of South Carolina, Columbia, South Carolina
| | - Tanner F Coleman
- Department of Biological Sciences, University of South Carolina, Columbia, South Carolina
| | - Shannon W Davis
- Department of Biological Sciences, University of South Carolina, Columbia, South Carolina
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Yan H, Zhang F, Wang K, Liu J, Zhu H, Pan C, Qu L. A novel 12 bp deletion within goat <i>LHX4</i> gene significantly affected litter size. Arch Anim Breed 2018. [DOI: 10.5194/aab-61-1-2018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Abstract. The LIM homeobox transcription factor 4 (LHX4) gene plays a critical role in regulating the development of the pituitary and the secretion of growth hormone (GH) and prolactin (PRL) associated with reproduction. Thus this gene may affect litter size. Herein, the aim of this study is to detect the novel insertion/deletion (indel) within the LHX4 gene as well as to test its association with litter size in 1149 Shaanbei white cashmere goats. Herein, a novel 12 bp indel (NC_030823.1:g.60001011_60001022delGGGGAGGAGGGG) was firstly found, which was located in the first intron. Meanwhile, three genotypes were detected in Shaanbei white cashmere goats, and the allelic frequencies of I and D were 0.593 and 0.407, respectively. Interestingly, the genotype distributions between mothers of single-lamb (n = 895) and multi-lamb (n = 254) groups within Shaanbei white cashmere goats were significantly different, implying that the 12 bp indel might affect the litter size. Furthermore, the association analysis was carried out to find out that the 12 bp indel was significantly associated with litter size in the analyzed goat population (P < 0.05). The litter sizes of genotype DD and ID individuals were superior to those of genotype II (P < 0.05). These findings suggest that this locus could be considered as a genetic marker for goat breeding, enriching the research category of functional genome of goats.
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Cheung LYM, Okano H, Camper SA. Sox21 deletion in mice causes postnatal growth deficiency without physiological disruption of hypothalamic-pituitary endocrine axes. Mol Cell Endocrinol 2017; 439:213-223. [PMID: 27616671 PMCID: PMC5123967 DOI: 10.1016/j.mce.2016.09.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 09/07/2016] [Accepted: 09/07/2016] [Indexed: 12/23/2022]
Abstract
The hypothalamic-pituitary axes are the coordinating centers for multiple endocrine gland functions and physiological processes. Defects in the hypothalamus or pituitary gland can cause reduced growth and severe short stature, affecting approximately 1 in 4000 children, and a large percentage of cases of pituitary hormone deficiencies do not have an identified genetic cause. SOX21 is a protein that regulates hair, neural, and trophoblast stem cell differentiation. Mice lacking Sox21 have reduced growth, but the etiology of this growth defect has not been described. We studied the expression of Sox21 in hypothalamic-pituitary development and examined multiple endocrine axes in these mice. We find no evidence of reduced intrauterine growth, food intake, or physical activity, but there is evidence for increased energy expenditure in mutants. In addition, despite changes in pituitary hormone expression, hypothalamic-pituitary axes appear to be functional. Therefore, SOX21 variants may be a cause of non-endocrine short stature in humans.
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Affiliation(s)
- Leonard Y M Cheung
- Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA
| | - Hideyuki Okano
- Department of Physiology, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Sally A Camper
- Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA.
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Gergics P, Christian HC, Choo MS, Ajmal A, Camper SA. Gene Expression in Mouse Thyrotrope Adenoma: Transcription Elongation Factor Stimulates Proliferation. Endocrinology 2016; 157:3631-46. [PMID: 27580811 PMCID: PMC5007889 DOI: 10.1210/en.2016-1183] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Thyrotrope hyperplasia and hypertrophy are common responses to primary hypothyroidism. To understand the genetic regulation of these processes, we studied gene expression changes in the pituitaries of Cga(-/-) mice, which are deficient in the common α-subunit of TSH, LH, and FSH. These mice have thyrotrope hypertrophy and hyperplasia and develop thyrotrope adenoma. We report that cell proliferation is increased, but the expression of most stem cell markers is unchanged. The α-subunit is required for secretion of the glycoprotein hormone β-subunits, and mutants exhibit elevated expression of many genes involved in the unfolded protein response, consistent with dilation and stress of the endoplasmic reticulum. Mutants have elevated expression of transcription factors that are important in thyrotrope function, such as Gata2 and Islet 1, and those that stimulate proliferation, including Nupr1, E2f1, and Etv5. We characterized the expression and function of a novel, overexpressed gene, transcription elongation factor A (SII)-like 5 (Tceal5). Stable expression of Tceal5 in a pituitary progenitor cell line is sufficient to increase cell proliferation. Thus, Tceal5 may act as a proto-oncogene. This study provides a rich resource for comparing pituitary transcriptomes and an analysis of gene expression networks.
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Affiliation(s)
- Peter Gergics
- Department of Human Genetics (P.G., M.S.C., S.A.C.), University of Michigan, Ann Arbor, Michigan 48109; Department of Physiology, Anatomy and Genetics (H.C.C.), University of Oxford, Oxford OX3 0RZ, United Kingdom; and Department of Internal Medicine, Metabolism, Endocrinology and Diabetes (A.A.), University of Michigan, Ann Arbor, Michigan 48105
| | - Helen C Christian
- Department of Human Genetics (P.G., M.S.C., S.A.C.), University of Michigan, Ann Arbor, Michigan 48109; Department of Physiology, Anatomy and Genetics (H.C.C.), University of Oxford, Oxford OX3 0RZ, United Kingdom; and Department of Internal Medicine, Metabolism, Endocrinology and Diabetes (A.A.), University of Michigan, Ann Arbor, Michigan 48105
| | - Monica S Choo
- Department of Human Genetics (P.G., M.S.C., S.A.C.), University of Michigan, Ann Arbor, Michigan 48109; Department of Physiology, Anatomy and Genetics (H.C.C.), University of Oxford, Oxford OX3 0RZ, United Kingdom; and Department of Internal Medicine, Metabolism, Endocrinology and Diabetes (A.A.), University of Michigan, Ann Arbor, Michigan 48105
| | - Adnan Ajmal
- Department of Human Genetics (P.G., M.S.C., S.A.C.), University of Michigan, Ann Arbor, Michigan 48109; Department of Physiology, Anatomy and Genetics (H.C.C.), University of Oxford, Oxford OX3 0RZ, United Kingdom; and Department of Internal Medicine, Metabolism, Endocrinology and Diabetes (A.A.), University of Michigan, Ann Arbor, Michigan 48105
| | - Sally A Camper
- Department of Human Genetics (P.G., M.S.C., S.A.C.), University of Michigan, Ann Arbor, Michigan 48109; Department of Physiology, Anatomy and Genetics (H.C.C.), University of Oxford, Oxford OX3 0RZ, United Kingdom; and Department of Internal Medicine, Metabolism, Endocrinology and Diabetes (A.A.), University of Michigan, Ann Arbor, Michigan 48105
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