Establishment and Characterization of a Novel Gill Cell Line, LG-1, from Atlantic Lumpfish ( Cyclopterus lumpus L.)

The use of lumpfish ( Cyclopterus lumpus ) as a cleaner fish to fight sea lice infestation in farmed Atlantic salmon has become increasingly common. Still, tools to increase our knowledge about lumpfish biology are lacking. Here, we successfully established and characterized the first Lumpfish Gill...

Full description

Bibliographic Details
Published in:Cells
Main Authors: Hilde Sindre, Mona C. Gjessing, Johanna Hol Fosse, Lene C. Hermansen, Inger Böckerman, Marit M. Amundsen, Maria K. Dahle, Anita Solhaug
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2021
Subjects:
Online Access:https://doi.org/10.3390/cells10092442
https://doaj.org/article/39f702c4745d4ae4ae974ff1204a7a60
Description
Summary:The use of lumpfish ( Cyclopterus lumpus ) as a cleaner fish to fight sea lice infestation in farmed Atlantic salmon has become increasingly common. Still, tools to increase our knowledge about lumpfish biology are lacking. Here, we successfully established and characterized the first Lumpfish Gill cell line (LG-1). LG-1 are adherent, homogenous and have a flat, stretched-out and almost transparent appearance. Transmission electron microscopy revealed cellular protrusions and desmosome-like structures that, together with their ability to generate a transcellular epithelial/endothelial resistance, suggest an epithelial or endothelial cell type. Furthermore, the cells exert Cytochrome P450 1A activity. LG-1 supported the propagation of several viruses that may lead to severe infectious diseases with high mortalities in fish farming, including viral hemorrhagic septicemia virus (VHSV) and infectious hematopoietic necrosis virus (IHNV). Altogether, our data indicate that the LG-1 cell line originates from an epithelial or endothelial cell type and will be a valuable in vitro research tool to study gill cell function as well as host-pathogen interactions in lumpfish.