Transcriptome analysis reveals differentially expressed transcripts in rat adrenal zona glomerulosa and zona fasciculata

Koshiro Nishimoto, Christine S. Rigsby, Tao Wang, Kuniaki Mukai, Celso E. Gomez-Sanchez, William E. Rainey, Tsugio Seki

Research output: Contribution to journalArticle

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Abstract

In mammals, aldosterone is produced in the zona glomerulosa (zG), the outermost layer of the adrenal cortex, whereas glucocorticoids are produced in adjacent zona fasciculata (zF). However, the cellular mechanisms controlling the zonal development and the differential hormone production (i.e. functional zonation) are poorly understood. To explore the mechanisms, we defined zone-specific transcripts in this study. Eleven-week-old male rats were used and adrenal tissues were collected from zG and zF using laser-capture microdissection. RNA was isolated, biotin labeled, amplified, and hybridized to Illumina microarray chips. The microarray data were compared by fold change calculations. In zG, 235 transcripts showed more than a 2-fold up-regulation compared to zF with statistical significance. Similarly, 231 transcripts showed up-regulation in zF. The microarray findings were validated using quantitative RT-PCR and immunohistochemical staining on selected transcripts, including Cyp11b2 (zG/zF: 214.2x), Rgs4 (68.4x), Smoc2 (49.3x), and Mia1 (43.1x) in zG as well as Ddah1 (zF/zG 16.2x), Cidea (15.5x), Frzb (9.5x), and Hsd11b2 (8.3x) in zF. The lists of transcripts obtained in the current study will be an invaluable tool for the elucidation of cellular mechanisms leading to zG and zF functional zonation.

Original languageEnglish
Pages (from-to)1755-1763
Number of pages9
JournalEndocrinology
Volume153
Issue number4
DOIs
Publication statusPublished - 2012 Apr

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Zona Fasciculata
Zona Glomerulosa
Gene Expression Profiling
Up-Regulation
Laser Capture Microdissection
Adrenal Cortex
Biotin
Aldosterone
Glucocorticoids
Mammals
Hormones
RNA
Staining and Labeling
Polymerase Chain Reaction

ASJC Scopus subject areas

  • Endocrinology

Cite this

Transcriptome analysis reveals differentially expressed transcripts in rat adrenal zona glomerulosa and zona fasciculata. / Nishimoto, Koshiro; Rigsby, Christine S.; Wang, Tao; Mukai, Kuniaki; Gomez-Sanchez, Celso E.; Rainey, William E.; Seki, Tsugio.

In: Endocrinology, Vol. 153, No. 4, 04.2012, p. 1755-1763.

Research output: Contribution to journalArticle

Nishimoto, Koshiro ; Rigsby, Christine S. ; Wang, Tao ; Mukai, Kuniaki ; Gomez-Sanchez, Celso E. ; Rainey, William E. ; Seki, Tsugio. / Transcriptome analysis reveals differentially expressed transcripts in rat adrenal zona glomerulosa and zona fasciculata. In: Endocrinology. 2012 ; Vol. 153, No. 4. pp. 1755-1763.
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