Inflammatory Profile of Neurotrophins, IL-6, IL1-β, TNF-α, VEGF, ICAM-1 and TGF-β in the Human Waldeyer's Ring

European Journal of Inflammation

Original Article

E. Pompili¹  L. Fumagalli¹  R. Di Liddo²  P.P. Parnigotto²  D. Marcotullio³  G. Magliulo³  E. Bianchi³  R. Ierinò³  M. Articò³  S. Taurone³ 

[1] Department of Anatomical, Histological, Medico-legal and Locomotor System Sciences, “Sapienza” University of Rome, Rome, Italy;Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua, Italy;Department of Sensory Organs, “Sapienza” University of Rome, Rome, Italy;

关键词: lingual tonsil;    palatine tonsils;    adenoid tissue;    neurotrophins;    immunohistochemistry;    receptors;    TNF-α;    VEGF;    ICAM-1;    TGF-β;    IL-6;    IL-1β;   

DOI  :  10.1177/1721727X1301100319

 received in 2013-04-23, accepted in 2013-06-03,  发布年份 2013

来源: Sage Journals

【 摘 要 】

The palatine tonsils, nasopharyngeal tonsil (adenoid) and lingual tonsil constitute the major part of Waldeyer's ring, with the tubal tonsils and lateral pharyngeal bands as less prominent components. The lymphoid tissue of Waldeyer's ring is located at the gateway of the respiratory and alimentary tract and belongs to the mucosa-associated lymphoid tissue (MALT). Mucosae-associated lymphoid tissues are richly innervated and the mucosae contain peptidergic nerve endings associated with different types of cells and macrophages. The lymphatic tissue is known to interact with the nervous system and several organs implicated in the host response to a wide range of stressors. This study focuses on the expression of some neurotrophins (NTs), their high- and low-affinity receptors in human adenoid tissues, lingual and palatine tonsils via immunohistochemical analysis, as well as on the expression of some inflammatory cytokines and other tissue growth factors. Light microscopy immunohistochemistry showed human samples to be generally positive for all the NTs investigated (NGF, BDNF, NT-3) and their receptors (TrKA, TrKB and TrKC) with some different expression levels. IL-6, IL1-b, TNF-α, VEGF, ICAM-1 and TGF-b were also investigated by immunohistochemistry. These results suggest the presence of a pattern of neurotrophic innervation in the human lymphatic tissues 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. Our data also corroborate previous studies, suggesting that neurotrophins and inflammatory cytokines may mediate functional signals in lymphoid aggregates. In this context, owing to their widespread expression in immune organs and immunocompetent cells, NTs and inflammatory cytokines are potential candidates for a prominent role in the regulation of immune and neuroimmune interactions.

【 授权许可】

Unknown   
© 2013 SAGE Publications