Journal: Nature Communications
Article Title: The transcription factor HHEX maintains glucocorticoid levels and protects adrenals from androgen-induced lipid depletion
doi: 10.1038/s41467-025-68257-4
Figure Lengend Snippet: A Schematic representation of the transgenic mouse models used to inactivate HHEX in adrenocortical cells using Sf1-Cre high -mediated recombination of exon 2 and 3 of Hhex gene. B Quantification of Hhex transcripts by RT-qPCR in 6-week-old WT (n = 12) and Sf1-Cre high Hhex KO ( n = 8) male adrenals. p -value ( p ) was calculated using a two-tailed Mann–Whitney test. C Expression of HHEX in 6-week-old WT ( n = 4) and Sf1-Cre high Hhex KO ( n = 4) male adrenals in brown by immunohistochemistry. Nuclei were stained in blue with hematoxylin. D Corticosterone plasma levels of 15–19-week-old WT ( n = 21) and Sf1-Cre high Hhex KO males ( n = 12). p -value ( p ) was calculated using a two-tailed Mann–Whitney test. ( E ) Ex vivo corticosterone production, released in culture media by adrenal explants after 2.5 h incubation with 2.5 mM of Bt2-cAMP. WT ( n = 6) and Sf1-Cre high Hhex KO males ( n = 7). p -values ( p ) were calculated using a 2-way ANOVA followed by a Šídák’s multiple comparisons test. F , G Quantification of Cyp21a1 ( F ) and Cyp11b1 ( G ) transcripts by RT-qPCR in 15-week-old WT ( n = 12) and Sf1-Cre high Hhex KO ( n = 7) male adrenals. p -value ( p ) were calculated using a two-tailed unpaired t-test with Welch’s correction. ( H ) CYP21A1 immunohistochemistry in adrenals of 15-week-old WT ( n = 6) and Sf1-Cre high Hhex KO ( n = 6) male mice. Nuclei were stained in blue with hematoxylin. I Cyp11b1 RNAscope in adrenals of 15-week-old WT ( n = 7) and Sf1-Cre high Hhex KO ( n = 6) male mice. Nuclei were stained in blue with hematoxylin. J Oil Red O staining of 15-week-old WT ( n = 3) and Sf1-Cre high Hhex KO ( n = 3) male adrenals. Dotted rectangles depict the insets. K Cholesterol esters quantification in adrenals of 45-week-old WT ( n = 7) and Sf1-Cre high Hhex KO ( n = 5) male mice. p -value ( p ) was calculated using a two-tailed unpaired t-test with Welch’s correction. B , D–G , K Graph represents box plots with individual biological replicates, the range (whiskers) and the median (line) within the upper (75%) and lower (25%) quartiles. Source data and exact p -values are provided as a Source data file. C , H , I , J Dotted lines represent the corticomedullary junction. Created in BioRender. Dumontet, T. (2026) https://BioRender.com/fdp7ezq . IHC immunohistochemistry, Cap. Capsule, zG zona glomerulosa, zF zona fasciculata, izF inner zF, Med. medulla, w weeks, WT Wild Type, KO Knockout, Bt2-cAMP dibutyryl cyclic adenosine monophosphate, ns non-significant.
Article Snippet: Hhex flox/flox mice were purchased at Jackson Laboratory (Stock 025396; B6N.129S1(Cg)-Hhex /J; https://www.jax.org/strain/025396 ) and initially donated by Dr. Clifford Bogue, M.D., Yale University, USA .
Techniques: Transgenic Assay, Quantitative RT-PCR, Two Tailed Test, MANN-WHITNEY, Expressing, Immunohistochemistry, Staining, Clinical Proteomics, Ex Vivo, Incubation, RNAscope, Knock-Out