A new role for wilms tumor protein 1: differential activities of + KTS and -KTS variants to regulate LHβ transcription
Luteinizing hormone (LH) is synthesized and secreted throughout the reproductive cycle from gonadotrope cells in the anterior pituitary, and is required for steroidogenesis and ovulation. LH contains an α-subunit common with FSH, and a unique LHβ subunit that defines biological activity. Basal LHβ t...
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| description | Luteinizing hormone (LH) is synthesized and secreted throughout the reproductive cycle from gonadotrope cells in the anterior pituitary, and is required for steroidogenesis and ovulation. LH contains an α-subunit common with FSH, and a unique LHβ subunit that defines biological activity. Basal LHβ transcription is low and stimulated by hypothalamic GnRH, which induces synthesis of early growth response protein-1 (Egr1), and stimulates binding of transcription factors Egr1 and steroidogenic factor-1 (SF1) on the promoter. WT1 (Wilms tumor protein1) is a zinc finger transcription factor with an essential role in urogenital system development, and which regulates several reproductive genes via interactions with SF1 or binding to GC-rich elements such as Egr1 binding sites. We investigated a potential role for WT1 in LHβ transcription in clonal mouse gonadotrope LβT2 cells. WT1 was present in LβT2 and mouse pituitary cells, and protein bound to the endogenous LHβ promoter. Interestingly, mRNAs for WT1(+KTS), which contains a three amino-acid insertion between the 3rd and 4th zinc fingers, and the WT1 (-KTS) variant were both expressed at significant levels. WT1 mRNAs and protein were decreased approximately 50% by GnRH treatment, under conditions where Egr1 mRNA and protein, and LHβ transcription, were stimulated. Decreasing expression of mRNA for WT1 (-KTS) decreased stimulation of LHβ and Egr1 by GnRH, whereas decreasing both WT1 (-KTS) and (+KTS) increased endogenous LHβ transcription, and prevented LHβ but not Egr1 stimulation by GnRH, suggesting differing biological activities for the WT1 isoforms. Overexpression of WT1 showed that WT1(-KTS) enhanced LHβ promoter GnRH stimulation 2-to-3-fold and required the 3'Egr1 site, but WT1(+KTS) repressed both basal and GnRH-stimulated LHβ promoter activity by approximately 70%. Our data suggest that WT1 can modulate LHβ transcription, with differential roles for the two WT1 variants; WT1 (-KTS) enhances and WT1 (+KTS) suppresses transcription. |
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LH contains an α-subunit common with FSH, and a unique LHβ subunit that defines biological activity. Basal LHβ transcription is low and stimulated by hypothalamic GnRH, which induces synthesis of early growth response protein-1 (Egr1), and stimulates binding of transcription factors Egr1 and steroidogenic factor-1 (SF1) on the promoter. WT1 (Wilms tumor protein1) is a zinc finger transcription factor with an essential role in urogenital system development, and which regulates several reproductive genes via interactions with SF1 or binding to GC-rich elements such as Egr1 binding sites. We investigated a potential role for WT1 in LHβ transcription in clonal mouse gonadotrope LβT2 cells. WT1 was present in LβT2 and mouse pituitary cells, and protein bound to the endogenous LHβ promoter. Interestingly, mRNAs for WT1(+KTS), which contains a three amino-acid insertion between the 3rd and 4th zinc fingers, and the WT1 (-KTS) variant were both expressed at significant levels. WT1 mRNAs and protein were decreased approximately 50% by GnRH treatment, under conditions where Egr1 mRNA and protein, and LHβ transcription, were stimulated. Decreasing expression of mRNA for WT1 (-KTS) decreased stimulation of LHβ and Egr1 by GnRH, whereas decreasing both WT1 (-KTS) and (+KTS) increased endogenous LHβ transcription, and prevented LHβ but not Egr1 stimulation by GnRH, suggesting differing biological activities for the WT1 isoforms. Overexpression of WT1 showed that WT1(-KTS) enhanced LHβ promoter GnRH stimulation 2-to-3-fold and required the 3'Egr1 site, but WT1(+KTS) repressed both basal and GnRH-stimulated LHβ promoter activity by approximately 70%. Our data suggest that WT1 can modulate LHβ transcription, with differential roles for the two WT1 variants; WT1 (-KTS) enhances and WT1 (+KTS) suppresses transcription.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0116825</identifier><identifier>PMID: 25617744</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Amino acids ; Animals ; Binding sites ; Biological activity ; Cell culture ; Cell Line ; Deoxyribonucleic acid ; DNA ; Drug dosages ; Early Growth Response Protein 1 - metabolism ; EGR-1 protein ; Endocrinology ; Experiments ; Female ; Fingers ; Follicle-stimulating hormone ; Gene expression ; Gene Expression Regulation - drug effects ; Genetic Variation ; Gonadotropin-releasing hormone ; Gonadotropin-Releasing Hormone - pharmacology ; Hypothalamus ; Isoforms ; Kinases ; Luteinizing hormone ; Luteinizing Hormone, beta Subunit - genetics ; Male ; Medicine ; Mice ; Mutation ; Ovulation ; Pituitary (anterior) ; Pituitary Gland - drug effects ; Pituitary Gland - metabolism ; Plasmids ; Promoter Regions, Genetic - genetics ; Proteins ; Reproductive cycle ; RNA, Messenger - genetics ; RNA, Messenger - metabolism ; Rodents ; Steroidogenesis ; Stimulation ; Transcription factors ; Transcription, Genetic - drug effects ; Transgenic animals ; WT1 Proteins - genetics ; WT1 Proteins - metabolism ; Zinc ; Zinc finger proteins</subject><ispartof>PloS one, 2015, Vol.10 (1), p.e0116825</ispartof><rights>2015 Bagchi et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2015 Bagchi et al 2015 Bagchi et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3715-33407b9e57a255428ce6cbbdc1757b375e04b150be7d676dd3d99d33e6f5faf03</citedby><cites>FETCH-LOGICAL-c3715-33407b9e57a255428ce6cbbdc1757b375e04b150be7d676dd3d99d33e6f5faf03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4305298/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4305298/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,4024,23866,27923,27924,27925,53791,53793,79600,79601</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25617744$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Wolfe, Andrew</contributor><creatorcontrib>Bagchi, Debalina</creatorcontrib><creatorcontrib>Andrade, Josefa</creatorcontrib><creatorcontrib>Shupnik, Margaret A</creatorcontrib><title>A new role for wilms tumor protein 1: differential activities of + KTS and -KTS variants to regulate LHβ transcription</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Luteinizing hormone (LH) is synthesized and secreted throughout the reproductive cycle from gonadotrope cells in the anterior pituitary, and is required for steroidogenesis and ovulation. LH contains an α-subunit common with FSH, and a unique LHβ subunit that defines biological activity. Basal LHβ transcription is low and stimulated by hypothalamic GnRH, which induces synthesis of early growth response protein-1 (Egr1), and stimulates binding of transcription factors Egr1 and steroidogenic factor-1 (SF1) on the promoter. WT1 (Wilms tumor protein1) is a zinc finger transcription factor with an essential role in urogenital system development, and which regulates several reproductive genes via interactions with SF1 or binding to GC-rich elements such as Egr1 binding sites. We investigated a potential role for WT1 in LHβ transcription in clonal mouse gonadotrope LβT2 cells. WT1 was present in LβT2 and mouse pituitary cells, and protein bound to the endogenous LHβ promoter. Interestingly, mRNAs for WT1(+KTS), which contains a three amino-acid insertion between the 3rd and 4th zinc fingers, and the WT1 (-KTS) variant were both expressed at significant levels. WT1 mRNAs and protein were decreased approximately 50% by GnRH treatment, under conditions where Egr1 mRNA and protein, and LHβ transcription, were stimulated. Decreasing expression of mRNA for WT1 (-KTS) decreased stimulation of LHβ and Egr1 by GnRH, whereas decreasing both WT1 (-KTS) and (+KTS) increased endogenous LHβ transcription, and prevented LHβ but not Egr1 stimulation by GnRH, suggesting differing biological activities for the WT1 isoforms. Overexpression of WT1 showed that WT1(-KTS) enhanced LHβ promoter GnRH stimulation 2-to-3-fold and required the 3'Egr1 site, but WT1(+KTS) repressed both basal and GnRH-stimulated LHβ promoter activity by approximately 70%. Our data suggest that WT1 can modulate LHβ transcription, with differential roles for the two WT1 variants; WT1 (-KTS) enhances and WT1 (+KTS) suppresses transcription.</description><subject>Amino acids</subject><subject>Animals</subject><subject>Binding sites</subject><subject>Biological activity</subject><subject>Cell culture</subject><subject>Cell Line</subject><subject>Deoxyribonucleic acid</subject><subject>DNA</subject><subject>Drug dosages</subject><subject>Early Growth Response Protein 1 - metabolism</subject><subject>EGR-1 protein</subject><subject>Endocrinology</subject><subject>Experiments</subject><subject>Female</subject><subject>Fingers</subject><subject>Follicle-stimulating hormone</subject><subject>Gene expression</subject><subject>Gene Expression Regulation - drug effects</subject><subject>Genetic Variation</subject><subject>Gonadotropin-releasing hormone</subject><subject>Gonadotropin-Releasing Hormone - pharmacology</subject><subject>Hypothalamus</subject><subject>Isoforms</subject><subject>Kinases</subject><subject>Luteinizing hormone</subject><subject>Luteinizing Hormone, beta Subunit - genetics</subject><subject>Male</subject><subject>Medicine</subject><subject>Mice</subject><subject>Mutation</subject><subject>Ovulation</subject><subject>Pituitary (anterior)</subject><subject>Pituitary Gland - drug effects</subject><subject>Pituitary Gland - metabolism</subject><subject>Plasmids</subject><subject>Promoter Regions, Genetic - genetics</subject><subject>Proteins</subject><subject>Reproductive cycle</subject><subject>RNA, Messenger - genetics</subject><subject>RNA, Messenger - metabolism</subject><subject>Rodents</subject><subject>Steroidogenesis</subject><subject>Stimulation</subject><subject>Transcription factors</subject><subject>Transcription, Genetic - drug effects</subject><subject>Transgenic animals</subject><subject>WT1 Proteins - genetics</subject><subject>WT1 Proteins - metabolism</subject><subject>Zinc</subject><subject>Zinc finger proteins</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>DOA</sourceid><recordid>eNp1UsFu1DAUjBCIlsIfILDEEWVrx7GdcECqqtJWrMSBcrYc-2XxKmsH29kVv8WH9JvwdtOqPVQ-ePQ8b974aYriPcELQgU5XfspODUsRu9ggQnhTcVeFMekpVXJK0xfPsJHxZsY1xgz2nD-ujiqGCdC1PVxsTtDDnYo-AFQ7wPa2WETUZo2GY_BJ7AOkS_I2L6HAC5ZNSClk93aZCEi36PP6PvNT6ScQeUebFWwyqWs4VGA1TSoBGh5dfsPpaBc1MGOyXr3tnjVqyHCu_k-KX59u7g5vyqXPy6vz8-Wpc5_ZCWlNRZdC0yoirG6ajRw3XVGE8FERwUDXHeE4Q6E4YIbQ03bGkqB96xXPaYnxceD7jj4KOedRUnaBot8KpIZ1weG8Wotx2A3KvyVXll5V_BhJVVIVg8gG04opoZpoLjmnWgxpdkKV1WrMcFt1vo6T5u6DRidFxbU8ET06Yuzv-XKb2VNMavaJgt8mgWC_zNBTM9Yrg8sHXyMAfqHCQTLfTjuu-Q-HHIOR2778NjdQ9N9Guh_tVm4Vg</recordid><startdate>2015</startdate><enddate>2015</enddate><creator>Bagchi, Debalina</creator><creator>Andrade, Josefa</creator><creator>Shupnik, Margaret A</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>5PM</scope><scope>DOA</scope></search><sort><creationdate>2015</creationdate><title>A new role for wilms tumor protein 1: differential activities of + KTS and -KTS variants to regulate LHβ transcription</title><author>Bagchi, Debalina ; Andrade, Josefa ; Shupnik, Margaret A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3715-33407b9e57a255428ce6cbbdc1757b375e04b150be7d676dd3d99d33e6f5faf03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Amino acids</topic><topic>Animals</topic><topic>Binding sites</topic><topic>Biological activity</topic><topic>Cell culture</topic><topic>Cell Line</topic><topic>Deoxyribonucleic acid</topic><topic>DNA</topic><topic>Drug dosages</topic><topic>Early Growth Response Protein 1 - metabolism</topic><topic>EGR-1 protein</topic><topic>Endocrinology</topic><topic>Experiments</topic><topic>Female</topic><topic>Fingers</topic><topic>Follicle-stimulating hormone</topic><topic>Gene expression</topic><topic>Gene Expression Regulation - drug effects</topic><topic>Genetic Variation</topic><topic>Gonadotropin-releasing hormone</topic><topic>Gonadotropin-Releasing Hormone - pharmacology</topic><topic>Hypothalamus</topic><topic>Isoforms</topic><topic>Kinases</topic><topic>Luteinizing hormone</topic><topic>Luteinizing Hormone, beta Subunit - genetics</topic><topic>Male</topic><topic>Medicine</topic><topic>Mice</topic><topic>Mutation</topic><topic>Ovulation</topic><topic>Pituitary (anterior)</topic><topic>Pituitary Gland - drug effects</topic><topic>Pituitary Gland - metabolism</topic><topic>Plasmids</topic><topic>Promoter Regions, Genetic - genetics</topic><topic>Proteins</topic><topic>Reproductive cycle</topic><topic>RNA, Messenger - genetics</topic><topic>RNA, Messenger - metabolism</topic><topic>Rodents</topic><topic>Steroidogenesis</topic><topic>Stimulation</topic><topic>Transcription factors</topic><topic>Transcription, Genetic - 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LH contains an α-subunit common with FSH, and a unique LHβ subunit that defines biological activity. Basal LHβ transcription is low and stimulated by hypothalamic GnRH, which induces synthesis of early growth response protein-1 (Egr1), and stimulates binding of transcription factors Egr1 and steroidogenic factor-1 (SF1) on the promoter. WT1 (Wilms tumor protein1) is a zinc finger transcription factor with an essential role in urogenital system development, and which regulates several reproductive genes via interactions with SF1 or binding to GC-rich elements such as Egr1 binding sites. We investigated a potential role for WT1 in LHβ transcription in clonal mouse gonadotrope LβT2 cells. WT1 was present in LβT2 and mouse pituitary cells, and protein bound to the endogenous LHβ promoter. Interestingly, mRNAs for WT1(+KTS), which contains a three amino-acid insertion between the 3rd and 4th zinc fingers, and the WT1 (-KTS) variant were both expressed at significant levels. WT1 mRNAs and protein were decreased approximately 50% by GnRH treatment, under conditions where Egr1 mRNA and protein, and LHβ transcription, were stimulated. Decreasing expression of mRNA for WT1 (-KTS) decreased stimulation of LHβ and Egr1 by GnRH, whereas decreasing both WT1 (-KTS) and (+KTS) increased endogenous LHβ transcription, and prevented LHβ but not Egr1 stimulation by GnRH, suggesting differing biological activities for the WT1 isoforms. Overexpression of WT1 showed that WT1(-KTS) enhanced LHβ promoter GnRH stimulation 2-to-3-fold and required the 3'Egr1 site, but WT1(+KTS) repressed both basal and GnRH-stimulated LHβ promoter activity by approximately 70%. Our data suggest that WT1 can modulate LHβ transcription, with differential roles for the two WT1 variants; WT1 (-KTS) enhances and WT1 (+KTS) suppresses transcription.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>25617744</pmid><doi>10.1371/journal.pone.0116825</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Amino acids Animals Binding sites Biological activity Cell culture Cell Line Deoxyribonucleic acid DNA Drug dosages Early Growth Response Protein 1 - metabolism EGR-1 protein Endocrinology Experiments Female Fingers Follicle-stimulating hormone Gene expression Gene Expression Regulation - drug effects Genetic Variation Gonadotropin-releasing hormone Gonadotropin-Releasing Hormone - pharmacology Hypothalamus Isoforms Kinases Luteinizing hormone Luteinizing Hormone, beta Subunit - genetics Male Medicine Mice Mutation Ovulation Pituitary (anterior) Pituitary Gland - drug effects Pituitary Gland - metabolism Plasmids Promoter Regions, Genetic - genetics Proteins Reproductive cycle RNA, Messenger - genetics RNA, Messenger - metabolism Rodents Steroidogenesis Stimulation Transcription factors Transcription, Genetic - drug effects Transgenic animals WT1 Proteins - genetics WT1 Proteins - metabolism Zinc Zinc finger proteins |
| title | A new role for wilms tumor protein 1: differential activities of + KTS and -KTS variants to regulate LHβ transcription |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T02%3A07%3A47IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20new%20role%20for%20wilms%20tumor%20protein%201:%20differential%20activities%20of%20+%20KTS%20and%20-KTS%20variants%20to%20regulate%20LH%CE%B2%20transcription&rft.jtitle=PloS%20one&rft.au=Bagchi,%20Debalina&rft.date=2015&rft.volume=10&rft.issue=1&rft.spage=e0116825&rft.pages=e0116825-&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0116825&rft_dat=%3Cproquest_plos_%3E1980707021%3C/proquest_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1980707021&rft_id=info:pmid/25617744&rft_doaj_id=oai_doaj_org_article_861303d5ce3046b79033dc16a29c0109&rfr_iscdi=true |