{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T09:06:05Z","timestamp":1775034365955,"version":"3.50.1"},"reference-count":86,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2017,10,1]],"date-time":"2017-10-01T00:00:00Z","timestamp":1506816000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":["rep.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2017,10,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Testicular Leydig cells produce androgens essential for proper male reproductive development and fertility. Here, we describe a new Leydig cell ablation model based on Cre\/Lox recombination of mouse Gata4 and Gata6, two genes implicated in the transcriptional regulation of steroidogenesis. The testicular interstitium of adult Gata4flox\/flox; Gata6flox\/flox mice was injected with adenoviral vectors encoding Cre\u2009+\u2009GFP (Ad-Cre-IRES-GFP) or GFP alone (Ad-GFP). The vectors efficiently and selectively transduced Leydig cells, as evidenced by GFP reporter expression. Three days after Ad-Cre-IRES-GFP injection, expression of androgen biosynthetic genes (Hsd3b1, Cyp17a1 and Hsd17b3) was reduced, whereas expression of another Leydig cell marker, Insl3, was unchanged. Six days after Ad-Cre-IRES-GFP treatment, the testicular interstitium was devoid of Leydig cells, and there was a concomitant loss of all Leydig cell markers. Chromatin condensation, nuclear fragmentation, mitochondrial swelling, and other ultrastructural changes were evident in the degenerating Leydig cells. Liquid chromatography-tandem mass spectrometry demonstrated reduced levels of androstenedione and testosterone in testes from mice injected with Ad-Cre-IRES-GFP. Late effects of treatment included testicular atrophy, infertility and the accumulation of lymphoid cells in the testicular interstitium. We conclude that adenoviral-mediated gene delivery is an expeditious way to probe Leydig cell function in vivo. Our findings reinforce the notion that GATA factors are key regulators of steroidogenesis and testicular somatic cell survival.<\/jats:p>\n                  <jats:p>Free Finnish abstract: A Finnish translation of this abstract is freely available at http:\/\/www.reproduction-online.org\/content\/154\/4\/455\/suppl\/DC2.<\/jats:p>","DOI":"10.1530\/rep-17-0311","type":"journal-article","created":{"date-parts":[[2017,7,14]],"date-time":"2017-07-14T20:40:25Z","timestamp":1500064825000},"page":"455-467","update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-1","source":"Crossref","is-referenced-by-count":19,"title":["Probing GATA factor function in mouse Leydig cells via testicular injection of adenoviral vectors"],"prefix":"10.1093","volume":"154","author":[{"given":"Gervette M","family":"Penny","sequence":"first","affiliation":[{"name":"Department of Pediatrics , Washington University School of Medicine, St. Louis Children\u2019s Hospital, St. Louis, Missouri, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rebecca B","family":"Cochran","sequence":"additional","affiliation":[{"name":"Department of Pediatrics , Washington University School of Medicine, St. Louis Children\u2019s Hospital, St. Louis, Missouri, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marjut","family":"Pihlajoki","sequence":"additional","affiliation":[{"name":"Children\u2019s Hospital , University of Helsinki and Helsinki University Hospital, Helsinki, Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antti","family":"Kyr\u00f6nlahti","sequence":"additional","affiliation":[{"name":"Children\u2019s Hospital , University of Helsinki and Helsinki University Hospital, Helsinki, Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anja","family":"Schrade","sequence":"additional","affiliation":[{"name":"Children\u2019s Hospital , University of Helsinki and Helsinki University Hospital, Helsinki, Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Merja","family":"H\u00e4kkinen","sequence":"additional","affiliation":[{"name":"University of Eastern Finland , School of Pharmacy, Kuopio, Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jorma","family":"Toppari","sequence":"additional","affiliation":[{"name":"Department of Physiology , Institute of Biomedicine, University of Turku and Department of Pediatrics, Turku University Hospital, Turku, Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Markku","family":"Heikinheimo","sequence":"additional","affiliation":[{"name":"Department of Pediatrics , Washington University School of Medicine, St. Louis Children\u2019s Hospital, St. Louis, Missouri, USA"},{"name":"Children\u2019s Hospital , University of Helsinki and Helsinki University Hospital, Helsinki, Finland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David 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