Lymphoid organs are supplied by many nerve endings associated with different kinds of cells and macrophages. The role of this innervation on the release of locally active molecules is Still unclear. Lingual tonsils belong to Waldeyer's Ring, in close association with palatine tonsils and nasopharyngeal (adenoids) tonsils, thus constituting part of NALT (nasal-associated lymphoid tissue) together with the tubal tonsils and lateral pharyngeal bands. In this study, we focused our attention on the expression of some neurotrophins (NTs) and their high- and low-affinity receptors in human lingual tonsils. Light immunohistochemistry showed that human tonsillar samples were generally positive for all the NTs investigated (NGF, BDNF, NT-3, NT-4) and their receptors (TrKA, TrKB, TrKC and p75) with some different expression levels. NGF and TrKC were strongly expressed in macrophages, but weakly in lymphocytes. However, BDNF and TrKB was highly expressed in lymphocytes and weaker in macrophages. The low-affinity receptor for NGF, p75, was mainly moderately expressed in the analysed samples. These results suggest the presence of a pattern of neurotrophin innervation in the human lingual tonsil which may play a role in sustaining inflammatory conditions and in modulating a close interaction between the nervous system and the different immune cellular subtypes.

Artico, M., Bronzetti, E., Felici, L., Alicino, V., Ionta, B., Bronzetti, B., et al. (2008). Neurotrophins and their receptors in human lingual tonsil: An immunohistochemical analysis. ONCOLOGY REPORTS, 20(5), 1201-1206 [10.3892/or_00000130].

Neurotrophins and their receptors in human lingual tonsil: An immunohistochemical analysis

PASQUANTONIO, GUIDO;
2008-01-01

Abstract

Lymphoid organs are supplied by many nerve endings associated with different kinds of cells and macrophages. The role of this innervation on the release of locally active molecules is Still unclear. Lingual tonsils belong to Waldeyer's Ring, in close association with palatine tonsils and nasopharyngeal (adenoids) tonsils, thus constituting part of NALT (nasal-associated lymphoid tissue) together with the tubal tonsils and lateral pharyngeal bands. In this study, we focused our attention on the expression of some neurotrophins (NTs) and their high- and low-affinity receptors in human lingual tonsils. Light immunohistochemistry showed that human tonsillar samples were generally positive for all the NTs investigated (NGF, BDNF, NT-3, NT-4) and their receptors (TrKA, TrKB, TrKC and p75) with some different expression levels. NGF and TrKC were strongly expressed in macrophages, but weakly in lymphocytes. However, BDNF and TrKB was highly expressed in lymphocytes and weaker in macrophages. The low-affinity receptor for NGF, p75, was mainly moderately expressed in the analysed samples. These results suggest the presence of a pattern of neurotrophin innervation in the human lingual tonsil which may play a role in sustaining inflammatory conditions and in modulating a close interaction between the nervous system and the different immune cellular subtypes.
2008
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore MED/28 - MALATTIE ODONTOSTOMATOLOGICHE
English
Con Impact Factor ISI
Human lingual tonsil; Immunohistochemistry; Neurotrophins; Receptors
brain derived neurotrophic factor; brain derived neurotrophic factor receptor; nerve growth factor; neurotrophin; neurotrophin 3; neurotrophin 3 receptor; neurotrophin 4; neurotrophin receptor; protein p75; protein tyrosine kinase A; nerve growth factor receptor; article; cellular immunity; controlled study; human; human cell; human tissue; immunohistochemistry; innervation; lymphocyte; macrophage; nervous system function; priority journal; protein expression; tongue; tonsillitis; adenoid; biosynthesis; metabolism; vascular endothelium; Adenoids; Endothelium, Vascular; Humans; Immunohistochemistry; Lymphocytes; Macrophages; Nerve Growth Factors; Receptors, Nerve Growth Factor
Artico, M., Bronzetti, E., Felici, L., Alicino, V., Ionta, B., Bronzetti, B., et al. (2008). Neurotrophins and their receptors in human lingual tonsil: An immunohistochemical analysis. ONCOLOGY REPORTS, 20(5), 1201-1206 [10.3892/or_00000130].
Artico, M; Bronzetti, E; Felici, L; Alicino, V; Ionta, B; Bronzetti, B; Magliulo, G; Grande, C; Zamai, L; Pasquantonio, G; De Vincentiis, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/59125
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