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Efficient Isolation Protocol for B and T Lymphocytes from Human Palatine Tonsils
Published on: November 16, 2015
Differences in the metabolomic profile of the human palatine tonsil between pediatrics and adults
Seokhwan Lee1, Seonghye Kim2, Sung-Dong Kim3
1Department of Otorhinolaryngology, Inje University Haeundae Paik Hospital, Busan, Republic of Korea.
Abstract:
Palatine tonsils (PT) are B cell-predominant lymphoid organs that provide primary immune responses to airborne and dietary pathogens. Numerous histopathological and immunological studies have been conducted on PT, yet no investigations have been conducted on its metabolic profile. We performed high-resolution magic angle spinning nuclear magnetic resonance spectroscopy-based metabolic profiling in 35 pediatric and 28 adult human palatine tonsillar tissue samples. A total of 36 metabolites were identified, and the levels of 10 metabolites were significantly different depending on age. Among them, partial correlation analysis shows that glucose levels increased with age, whereas glycine, phosphocholine, phosphoethanolamine, and ascorbate levels decreased with age. We confirmed the decrease in immunometabolic activity in adults through metabolomic analysis, which had been anticipated from previous histological and immunological studies on the PT. These results improve our understanding of metabolic changes in the PT with aging and serve as a basis for future tonsil-related metabolomic studies.
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