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NANOG changes in mouse kidneys with age.

Quan-Jian Yan¹, Xiang-Mei Chen, Yu-Mei Zhang

¹Department of Nephrology, Kidney Center and Key Lab of PLA, Chinese General Hospital of PLA, Beijing, PR China.

Rejuvenation Research

|November 30, 2005

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NANOG, crucial for embryonic stem cell pluripotency, is expressed in mouse kidney papillary cells. Its expression decreases with age, suggesting a role in kidney aging and development.

Area of Science:

Stem Cell Biology
Developmental Biology
Gerontology

Background:

NANOG is a key transcription factor essential for embryonic stem cell (ESC) pluripotency and self-renewal.
NANOG expression has been detected in various adult murine tissues, with human NANOG transcripts found in adult bone marrow.

Purpose of the Study:

To investigate the NANOG gene expression profile in isolated mouse renal papillary cells.
To determine the age-dependent expression pattern of NANOG in mouse kidney tissues.

Main Methods:

Northern blot and reverse transcriptase-polymerase chain reaction (RT-PCR) were employed to analyze NANOG expression.
RNA was isolated from fresh renal tissues, PBS-infused renal tissues, isolated renal papillary cells, and renal papillary tissues across different age groups (fetal, young, adult, aging).

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Main Results:

NANOG expression levels were very low in general mouse renal tissues.
Renal papillary cells exhibited higher NANOG expression compared to other renal tissues.
NANOG expression in the kidney, particularly in renal papillary tissue, showed an age-dependent decline.

Conclusions:

The kidney contains specific cells that express NANOG.
NANOG expression in the kidney is subject to age-related loss, potentially influenced by developmental factors or the aging process.