Lee YS, Lee KH. Expressional Evaluation of C/EBP Family, SREBP1, and Steroid Hormone
Receptors in the Epididiymal Fat of Postnatally Developing Mouse.
Dev Reprod 2022;
26:49-58. [PMID:
35950166 PMCID:
PMC9336211 DOI:
10.12717/dr.2022.26.2.49]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/13/2022] [Accepted: 05/14/2022] [Indexed: 11/24/2022]
Abstract
The differentiation and development of preadipocyte into mature adipocyte
are regulated by transcription factors, such as CCAAT
enhancer binding protein (Cebp) gene family and sterol
regulatory element binding transcription factor 1 (Srebp1).
Steroid hormones give influences on the development and function of adipocyte.
The present research examined expression patterns of CCAAT
enhancer binding protein alpha (Cebpa), CCAAT enhancer binding
protein beta (Cebpb), CCAAT enhancer binding protein gamma
(Cebpg), sterol regulatory element binding transcription
factor 1 (Srebp1), androgen receptor (Ar), and
estrogen receptors (Esr) among different epididymal fat
parts during postnatal period by quantitative real-time
polymerase chain reaction. In the distal epididymal fat, expression of
Cebpa, Cebpb, Cebpg,
Srebp1, Ar, and Esr2 was
increased until 12 months of age, while expression of Esr1 was
decreased at 5 months of age and was not detectable after 8 months of age. In
the proximal epididymal fat, transcript levels of Cebps and
Srebp1 were increased at 8 months of age, followed by
decreases of Cebpb and Cebpg transcript levels
at 12 months of age. An additional increase of Srebp1
expression was observed at 12 months of age. Expression of Ar
and Esr2 were increased until 8 months of age, followed by a
drop of Ar expression level at 12 months of age. Expression
pattern of Esr1 was similar to that in the
distal epididymal fat. In the tail epididymal fat, expression of
Cebpa, Cebpg, Srebp1,
Ar, and Esr2 was increased with age.
Esr1 was not detectable at all. The highest level of
Cebpb was observed at 8 months of age. These data suggest
the possibility of developmental and functional differentiation among the
epididymal fat parts.
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