Localization of CRF-like immunoreactivity in the brain and pituitary of teleost fish
Identifieur interne : 001099 ( Istex/Corpus ); précédent : 001098; suivant : 001100Localization of CRF-like immunoreactivity in the brain and pituitary of teleost fish
Auteurs : Madeleine Olivereau ; Jacqueline OlivereauSource :
- Peptides [ 0196-9781 ] ; 1988.
Abstract
Immunocytochemical techniques were applied to brain and pituitary sections of eleven teleost species. A corticotropin-releasing factor (CRF)-antiserum allowed the identification of a CRF-like system in these species. Perikarya were labeled in the preoptic nucleus. Labeled fibers were traced laterally, then ventrally close to the optic chiasma, forming two symmetrical tracts running through the basal hypothalamus. These ended in the rostral neurohypophysis (NH) close to ACTH cells as shown by double immunostaining. Other fibers, often more variquous, ended in the caudal NH close to melanocorticotropic cells. In Salmo fario, small perikarya also stained in the nucleus lateralis tuberis. The CRF-like system appears distinct from that of somatostatin. In Anguilla, adjacent sections stained with CRF- and vasotocin (AVT)-antisera respectively showed that these two peptides coexist in some perikarya. As few fibers containing only AVT end in the rostral NH, they probably do not control ACTH cells directly. AVT fibers terminate mostly in the caudal NH close to melanocorticotropic cells. Some extra-hypothalamic fibers suggest that CRF may also act as a neurotransmitter. The plurality of hormones showing a CRF-like activity in teleosts is considered.
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DOI: 10.1016/0196-9781(88)90004-6
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A corticotropin-releasing factor (CRF)-antiserum allowed the identification of a CRF-like system in these species. Perikarya were labeled in the preoptic nucleus. Labeled fibers were traced laterally, then ventrally close to the optic chiasma, forming two symmetrical tracts running through the basal hypothalamus. These ended in the rostral neurohypophysis (NH) close to ACTH cells as shown by double immunostaining. Other fibers, often more variquous, ended in the caudal NH close to melanocorticotropic cells. In Salmo fario, small perikarya also stained in the nucleus lateralis tuberis. The CRF-like system appears distinct from that of somatostatin. In Anguilla, adjacent sections stained with CRF- and vasotocin (AVT)-antisera respectively showed that these two peptides coexist in some perikarya. As few fibers containing only AVT end in the rostral NH, they probably do not control ACTH cells directly. AVT fibers terminate mostly in the caudal NH close to melanocorticotropic cells. Some extra-hypothalamic fibers suggest that CRF may also act as a neurotransmitter. The plurality of hormones showing a CRF-like activity in teleosts is considered.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Madeleine Olivereau</name><affiliations><json:string>Laboratoire de Physiologie, Institut Océanographique 195, rue Saint-Jacques, F-75005 Paris, France</json:string></affiliations></json:item><json:item><name>Jacqueline Olivereau</name><affiliations><json:string>Laboratoire de Physiologie, Institut Océanographique 195, rue Saint-Jacques, F-75005 Paris, France</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Corticotropin-releasing factor</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Vasotocin</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Somatostatin</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Immunocytochemistry</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Brain</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Pituitary</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Teleosts</value></json:item></subject><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>Immunocytochemical techniques were applied to brain and pituitary sections of eleven teleost species. 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Some extra-hypothalamic fibers suggest that CRF may also act as a neurotransmitter. 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A corticotropin-releasing factor (CRF)-antiserum allowed the identification of a CRF-like system in these species. Perikarya were labeled in the preoptic nucleus. Labeled fibers were traced laterally, then ventrally close to the optic chiasma, forming two symmetrical tracts running through the basal hypothalamus. These ended in the rostral neurohypophysis (NH) close to ACTH cells as shown by double immunostaining. Other fibers, often more variquous, ended in the caudal NH close to melanocorticotropic cells. In Salmo fario, small perikarya also stained in the nucleus lateralis tuberis. The CRF-like system appears distinct from that of somatostatin. In Anguilla, adjacent sections stained with CRF- and vasotocin (AVT)-antisera respectively showed that these two peptides coexist in some perikarya. As few fibers containing only AVT end in the rostral NH, they probably do not control ACTH cells directly. AVT fibers terminate mostly in the caudal NH close to melanocorticotropic cells. Some extra-hypothalamic fibers suggest that CRF may also act as a neurotransmitter. The plurality of hormones showing a CRF-like activity in teleosts is considered.</p></abstract><textClass><keywords scheme="keyword"><list><head>Keywords</head><item><term>Corticotropin-releasing factor</term></item><item><term>Vasotocin</term></item><item><term>Somatostatin</term></item><item><term>Immunocytochemistry</term></item><item><term>Brain</term></item><item><term>Pituitary</term></item><item><term>Teleosts</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1988">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/522D6911D94B27EDDCAA94D1B259C442AFABB9AB/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla"><item-info><jid>PEP</jid><aid>88900046</aid><ce:pii>0196-9781(88)90004-6</ce:pii><ce:doi>10.1016/0196-9781(88)90004-6</ce:doi><ce:copyright type="unknown" year="1988"></ce:copyright></item-info><head><ce:title>Localization of CRF-like immunoreactivity in the brain and pituitary of teleost fish</ce:title><ce:author-group><ce:author><ce:given-name>Madeleine</ce:given-name><ce:surname>Olivereau</ce:surname></ce:author><ce:author><ce:given-name>Jacqueline</ce:given-name><ce:surname>Olivereau</ce:surname></ce:author><ce:affiliation><ce:textfn>Laboratoire de Physiologie, Institut Océanographique 195, rue Saint-Jacques, F-75005 Paris, France</ce:textfn></ce:affiliation></ce:author-group><ce:date-received day="6" month="8" year="1987"></ce:date-received><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>Immunocytochemical techniques were applied to brain and pituitary sections of eleven teleost species. A corticotropin-releasing factor (CRF)-antiserum allowed the identification of a CRF-like system in these species. Perikarya were labeled in the preoptic nucleus. Labeled fibers were traced laterally, then ventrally close to the optic chiasma, forming two symmetrical tracts running through the basal hypothalamus. These ended in the rostral neurohypophysis (NH) close to ACTH cells as shown by double immunostaining. Other fibers, often more variquous, ended in the caudal NH close to melanocorticotropic cells. In <ce:italic>Salmo fario</ce:italic>, small perikarya also stained in the nucleus lateralis tuberis. The CRF-like system appears distinct from that of somatostatin. In <ce:italic>Anguilla</ce:italic>, adjacent sections stained with CRF- and vasotocin (AVT)-antisera respectively showed that these two peptides coexist in some perikarya. As few fibers containing only AVT end in the rostral NH, they probably do not control ACTH cells directly. AVT fibers terminate mostly in the caudal NH close to melanocorticotropic cells. Some extra-hypothalamic fibers suggest that CRF may also act as a neurotransmitter. The plurality of hormones showing a CRF-like activity in teleosts is considered.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:keywords><ce:section-title>Keywords</ce:section-title><ce:keyword><ce:text>Corticotropin-releasing factor</ce:text></ce:keyword><ce:keyword><ce:text>Vasotocin</ce:text></ce:keyword><ce:keyword><ce:text>Somatostatin</ce:text></ce:keyword><ce:keyword><ce:text>Immunocytochemistry</ce:text></ce:keyword><ce:keyword><ce:text>Brain</ce:text></ce:keyword><ce:keyword><ce:text>Pituitary</ce:text></ce:keyword><ce:keyword><ce:text>Teleosts</ce:text></ce:keyword></ce:keywords></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>Localization of CRF-like immunoreactivity in the brain and pituitary of teleost fish</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>Localization of CRF-like immunoreactivity in the brain and pituitary of teleost fish</title></titleInfo><name type="personal"><namePart type="given">Madeleine</namePart><namePart type="family">Olivereau</namePart><affiliation>Laboratoire de Physiologie, Institut Océanographique 195, rue Saint-Jacques, F-75005 Paris, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Jacqueline</namePart><namePart type="family">Olivereau</namePart><affiliation>Laboratoire de Physiologie, Institut Océanographique 195, rue Saint-Jacques, F-75005 Paris, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1988</dateIssued><copyrightDate encoding="w3cdtf">1988</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Immunocytochemical techniques were applied to brain and pituitary sections of eleven teleost species. A corticotropin-releasing factor (CRF)-antiserum allowed the identification of a CRF-like system in these species. Perikarya were labeled in the preoptic nucleus. Labeled fibers were traced laterally, then ventrally close to the optic chiasma, forming two symmetrical tracts running through the basal hypothalamus. These ended in the rostral neurohypophysis (NH) close to ACTH cells as shown by double immunostaining. Other fibers, often more variquous, ended in the caudal NH close to melanocorticotropic cells. In Salmo fario, small perikarya also stained in the nucleus lateralis tuberis. The CRF-like system appears distinct from that of somatostatin. In Anguilla, adjacent sections stained with CRF- and vasotocin (AVT)-antisera respectively showed that these two peptides coexist in some perikarya. As few fibers containing only AVT end in the rostral NH, they probably do not control ACTH cells directly. AVT fibers terminate mostly in the caudal NH close to melanocorticotropic cells. Some extra-hypothalamic fibers suggest that CRF may also act as a neurotransmitter. The plurality of hormones showing a CRF-like activity in teleosts is considered.</abstract><subject><genre>Keywords</genre><topic>Corticotropin-releasing factor</topic><topic>Vasotocin</topic><topic>Somatostatin</topic><topic>Immunocytochemistry</topic><topic>Brain</topic><topic>Pituitary</topic><topic>Teleosts</topic></subject><relatedItem type="host"><titleInfo><title>Peptides</title></titleInfo><titleInfo type="abbreviated"><title>PEP</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">198801</dateIssued></originInfo><identifier type="ISSN">0196-9781</identifier><identifier type="PII">S0196-9781(00)X0125-8</identifier><part><date>198801</date><detail type="volume"><number>9</number><caption>vol.</caption></detail><detail type="issue"><number>1</number><caption>no.</caption></detail><extent unit="issue pages"><start>1</start><end>213</end></extent><extent unit="pages"><start>13</start><end>21</end></extent></part></relatedItem><identifier type="istex">522D6911D94B27EDDCAA94D1B259C442AFABB9AB</identifier><identifier type="DOI">10.1016/0196-9781(88)90004-6</identifier><identifier type="PII">0196-9781(88)90004-6</identifier><recordInfo><recordContentSource>ELSEVIER</recordContentSource></recordInfo></mods></metadata></istex></record>Pour manipuler ce document sous Unix (Dilib)
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