{"id":{"repo_id":"cornell","oai_identifier":"oai:ecommons.cornell.edu:1813/115863"},"canonical_url":"https://search.dev.ndltd.org/etd/cornell/oai:ecommons.cornell.edu:1813/115863","repository":{"repo_id":"cornell","name":"Cornell University","base_url":"https://ecommons.cornell.edu/server/oai/request"},"display":{"title":"STUDIES ON THE SUBCELLULAR LOCALIZATION OF 3-BETA- HYDROXYSTEROID DEHYDROGENASE IN STEROIDOGENIC CELLS","abstract":"Steroid hormones are critical for physiological regulation and reproduction. Starting with cholesterol, steroids are initially transformed into pregnenolone by the enzyme P450scc (CYP11A1). Pregnenolone is then converted into various steroid intermediates by 3-β hydroxysteroid dehydrogenase/ Δ5-Δ4 isomerase (HSD3B), a process crucial for producing key hormones like progesterone and testosterone— deficiencies in HSD3B lead to disorders such as congenital adrenal hyperplasia and disrupted sexual development. There are several isoforms of HSD3B in mice and humans that show distinct tissue expressions in organs like the adrenal cortex and gonads. However, its subcellular localization that provides the cellular site of enzyme activity remains confusing and has been a topic of debate. Our study explores the subcellular localization of HSD3B using an approach for precise immunofluorescence, providing clarity on its site of action, and enhancing understanding of its biosynthetic function in steroidogenesis.","abstract_html":"Steroid hormones are critical for physiological regulation and reproduction. Starting with cholesterol, steroids are initially transformed into pregnenolone by the enzyme P450scc (CYP11A1). Pregnenolone is then converted into various steroid intermediates by 3-β hydroxysteroid dehydrogenase/ Δ5-Δ4 isomerase (HSD3B), a process crucial for producing key hormones like progesterone and testosterone— deficiencies in HSD3B lead to disorders such as congenital adrenal hyperplasia and disrupted sexual development. There are several isoforms of HSD3B in mice and humans that show distinct tissue expressions in organs like the adrenal cortex and gonads. However, its subcellular localization that provides the cellular site of enzyme activity remains confusing and has been a topic of debate. Our study explores the subcellular localization of HSD3B using an approach for precise immunofluorescence, providing clarity on its site of action, and enhancing understanding of its biosynthetic function in steroidogenesis.","abstract_has_math":false,"creators":["Sheets, Jocelyn"],"institution":"Cornell University","degree_name":"M.S., Animal Science","degree_level":"Master of Science","degree_discipline":"Animal Science","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":["Ren, Yi","Cheong, Soon Hon"],"year":2024,"date_issued":"2024-05","date_published":"2024-05","updated_at":"2026-07-24T01:49:08Z","subjects":[],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.doi","label":"DOI","values":["https://doi.org/10.7298/qf31-w285"],"render_values":[{"text":"https://doi.org/10.7298/qf31-w285","href":"https://doi.org/10.7298/qf31-w285","code":true}]},{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["ProQuest Submission ID: 12087","ProQuest Publication ID: 31242656"],"render_values":[{"text":"ProQuest Submission ID: 12087","href":null,"code":true},{"text":"ProQuest Publication ID: 31242656","href":null,"code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/1813/115863","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Ren, Yi","Cheong, Soon Hon"]},{"key":"dc:creator","label":"Author","values":["Sheets, Jocelyn"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2024-11-05T19:42:56Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2024-11-05T19:42:56Z"]},{"key":"dc:date.issued","label":"Date","values":["2024-05"]},{"key":"dc:type","label":"Dc Type","values":["dissertation or thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Animal Science"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Master of Science"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S., Animal Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Cornell University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.doi","label":"DOI","values":["https://doi.org/10.7298/qf31-w285"]},{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["ProQuest Submission ID: 12087","ProQuest Publication ID: 31242656"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/1813/115863"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["79 pages"]},{"key":"dc:description.abstract","label":"Abstract","values":["Steroid hormones are critical for physiological regulation and reproduction. Starting with cholesterol, steroids are initially transformed into pregnenolone by the enzyme P450scc (CYP11A1). Pregnenolone is then converted into various steroid intermediates by 3-β hydroxysteroid dehydrogenase/ Δ5-Δ4 isomerase (HSD3B), a process crucial for producing key hormones like progesterone and testosterone— deficiencies in HSD3B lead to disorders such as congenital adrenal hyperplasia and disrupted sexual development. There are several isoforms of HSD3B in mice and humans that show distinct tissue expressions in organs like the adrenal cortex and gonads. However, its subcellular localization that provides the cellular site of enzyme activity remains confusing and has been a topic of debate. Our study explores the subcellular localization of HSD3B using an approach for precise immunofluorescence, providing clarity on its site of action, and enhancing understanding of its biosynthetic function in steroidogenesis."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["STUDIES ON THE SUBCELLULAR LOCALIZATION OF 3-BETA- HYDROXYSTEROID DEHYDROGENASE IN STEROIDOGENIC CELLS"]}]}],"canonical_facts":{"dc:contributor.committeemember":["Ren, Yi","Cheong, Soon Hon"],"dc:creator":["Sheets, Jocelyn"],"dc:date.accessioned":["2024-11-05T19:42:56Z"],"dc:date.available":["2024-11-05T19:42:56Z"],"dc:date.issued":["2024-05"],"dc:description":["79 pages"],"dc:description.abstract":["Steroid hormones are critical for physiological regulation and reproduction. Starting with cholesterol, steroids are initially transformed into pregnenolone by the enzyme P450scc (CYP11A1). Pregnenolone is then converted into various steroid intermediates by 3-β hydroxysteroid dehydrogenase/ Δ5-Δ4 isomerase (HSD3B), a process crucial for producing key hormones like progesterone and testosterone— deficiencies in HSD3B lead to disorders such as congenital adrenal hyperplasia and disrupted sexual development. There are several isoforms of HSD3B in mice and humans that show distinct tissue expressions in organs like the adrenal cortex and gonads. However, its subcellular localization that provides the cellular site of enzyme activity remains confusing and has been a topic of debate. Our study explores the subcellular localization of HSD3B using an approach for precise immunofluorescence, providing clarity on its site of action, and enhancing understanding of its biosynthetic function in steroidogenesis."],"dc:format.mimetype":["application/pdf"],"dc:identifier.doi":["https://doi.org/10.7298/qf31-w285"],"dc:identifier.other":["ProQuest Submission ID: 12087","ProQuest Publication ID: 31242656"],"dc:identifier.uri":["https://hdl.handle.net/1813/115863"],"dc:language.iso":["en"],"dc:title":["STUDIES ON THE SUBCELLULAR LOCALIZATION OF 3-BETA- HYDROXYSTEROID DEHYDROGENASE IN STEROIDOGENIC CELLS"],"dc:type":["dissertation or thesis"],"thesis:degree_discipline":["Animal Science"],"thesis:degree_level":["Master of Science"],"thesis:degree_name":["M.S., Animal Science"],"thesis:institution_name":["Cornell University"]},"updated_at":"2026-07-24T01:49:08Z"}