PCR-select subtraction for characterization of messages differentially expressed in brown compared with white adipose tissue
| Autor: | Naoshi Yamazaki, Takiko Daikoku, Yoshinobu Baba, Yasuo Shinohara, Kazuaki Kajimoto, Fumiyo Kita, Hiroshi Terada, Masatoshi Kataoka |
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| Rok vydání: | 2003 |
| Předmět: |
Mitochondrial DNA
DNA Complementary animal structures Endocrinology Diabetes and Metabolism Adipose tissue White adipose tissue Mitochondrion Biology DNA Mitochondrial Polymerase Chain Reaction Biochemistry Mitochondrial Proteins Endocrinology Adipose Tissue Brown Complementary DNA Botany Brown adipose tissue Genetics medicine Animals Uncoupling protein RNA Messenger Cloning Molecular Rats Wistar Molecular Biology Cloning Gene Expression Profiling Brain nutritional and metabolic diseases food and beverages Blotting Northern Molecular biology Mitochondria Rats medicine.anatomical_structure Adipose Tissue lipids (amino acids peptides and proteins) hormones hormone substitutes and hormone antagonists |
| Zdroj: | Molecular Genetics and Metabolism. 80:255-261 |
| ISSN: | 1096-7192 |
| DOI: | 10.1016/j.ymgme.2003.08.006 |
| Popis: | To understand the energy metabolism occurring in brown adipose tissue (BAT), we subtracted the messages expressed in white adipose tissue (WAT) from those in BAT. Thereby we succeeded in identifying 37 cDNA clones as being significantly expressed in BAT but not in WAT. Of these, 24 clones were found to code for mitochondrial proteins. Since BAT is well known to have a higher mitochondrial content than WAT, these results would seem to reflect simply the differences in mitochondrial content between BAT and WAT. To examine this possibility, we next measured the amount of mitochondrial DNA (mtDNA) in various rat tissues. As a result, the mtDNA copy number per cell was found to be markedly different among the tissues analyzed, and the highest value of about 5.3x10(4) copies per cell was observed with the rat brain. BAT showed a value similar to that of brain, but this value was only about 3.5-fold higher than that for WAT. Since observed differences in mitochondrial content between BAT and WAT was smaller than those observed with transcript levels of proteins, we conclude that the observed differences in the transcript levels of certain proteins between BAT and WAT reflect the functional differences between BAT and WAT, and do not reflect the differences in mitochondrial content between BAT and WAT. |
| Databáze: | OpenAIRE |
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