Lymphoid Tissue in Teleost Gills: Variations on a Theme

Autor: Geert F. Wiegertjes, Louis Du Pasquier, Alf Seljenes Dalum, Yaqing Zhang, Erling Olaf Koppang, Julien Rességuier, Pierre Boudinot
Přispěvatelé: Department of Biosciences [Oslo], Faculty of Mathematics and Natural Sciences [Oslo], University of Oslo (UiO)-University of Oslo (UiO), Norwegian University of Life Sciences (NMBU), University of Basel (Unibas), Wageningen University and Research [Wageningen] (WUR), Virologie et Immunologie Moléculaires (VIM (UR 0892)), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), China Scholarship Council, CSC Wageningen UR, WUR 144642 Norges Miljø- og Biovitenskapelige Universitet, NMBU National Natural Science Foundation of China, NSFC, Funding: This research was funded by the Norwegian Research Counsil (FRIMEDBIO‐No 144642), and by institutional grants from INRAE, Norwegian University of Life Sciences and WUR. Yaqing Zhang was funded by the China Scholarship Council, National Natural Science Foundation of China.
Rok vydání: 2020
Předmět:
Zdroj: Biology, Vol 9, Iss 127, p 127 (2020)
Biology 9 (2020) 6
Biology, 9(6)
Biology
Biology (Basel)
Biology, MDPI 2020, 9 (6), pp.1-14. ⟨10.3390/biology9060127⟩
Volume 9
Issue 6
ISSN: 2079-7737
Popis: International audience; In bony fish, the gill filaments are essential for gas exchanges, but also are vulnerable to infection by water‐borne microorganisms. Omnipresent across fish, gill‐associated lymphoid tissues (GIALT) regulate interactions with local microbiota and halt infection by pathogens. A special GIALT structure has recently been found in Salmonids, the interbranchial lymphoid tissue (ILT). However, the structural variation of GIALT across bony fish remains largely unknown. Here, we show how this critical zone of interaction evolved across fishes. By labeling a conserved T‐cell epitope on tissue sections, we find that several basal groups of teleosts possess typical ILT, while modern teleosts have lymphoepithelium of different shape and size at the base of primary gill filaments. Within Cypriniformes, neither body size variation between two related species, zebrafish and common carp, nor morphotype variation, did have a drastic effect on the structure of ILT. Thereby this study is the first to describe the presence of ILT in zebrafish. The ILT variability across fish orders seems to represent different evolutionary solutions to balancing trade‐offs between multiple adaptations of jaws and pharyngeal region, and immune responses. Our data point to a wide structural variation in gill immunity between basal groups and modern teleosts.
Databáze: OpenAIRE