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Development and characterization of a new gill cell line from the striped catfish, Pangasianodon hypophthalmus (Sauvage, 1878)

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Abstract

Cell lines as an in vitro model developed from different target organs of fish find their use in virus susceptibility, cytotoxicity, gene expression studies. The striped catfish, Pangasianodon hypophthalmus, is one of the main species in aquaculture, especially in Southeast Asian countries like Thailand, Indonesia, China, India, Bangladesh, and Vietnam. The present study reports the development of a new permanent cell line from the gills of P. hypophthalmus designated as PHG and its application in toxicological research. Leibovitz’s L-15 cell culture medium supplemented with 15% fetal bovine serum (FBS) was used to maintain cell line PHG. The morphology of the PHG cell line was observed fibroblastic-like. PHG cells grew well at varying temperatures ranging from 24 to 30 °C with an optimum temperature of 28 °C. The PHG cell line was characterized using a sequence of mitochondrial cytochrome C oxidase subunit I, which authenticated the species of origin of the cell line. The cell line was transfected with a pEGFP-C1 plasmid, and the transfection reporter gene was successfully expressed 48 h post-transfection with 9% transfection efficiency. The toxicity assessment of two organophosphate pesticides, chlorpyrifos, and malathion using the PHG cell line revealed that the two organophosphate pesticides were cytotoxic to the cell line at varying concentrations.

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Acknowledgements

The authors wish to express their sincere gratitude to the Director, ICAR-Central Institute of Fisheries Education, Mumbai, Maharashtra, India, and the Indian Council of Agricultural Research, New Delhi, for providing the facilities and financial support to carry out the research.

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This study was funded by ICAR- Central Institute of Fisheries Education, Mumbai, Maharashtra, India.

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Arjunan Sathiyanarayanan: Bench work; original draft writing, writing, review, and editing; and methodology.

Naresh Nagpure: Manuscript correction and validation.

Gireesh Babu P: Methodology.

Dhanjit Kumar Das: Methodology.

Mukunda Goswami: Experimental design, conceptualization, and supervision.

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Correspondence to Mukunda Goswami.

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Sathiyanarayanan, A., Goswami, M., Nagpure, N. et al. Development and characterization of a new gill cell line from the striped catfish, Pangasianodon hypophthalmus (Sauvage, 1878). Fish Physiol Biochem 48, 367–380 (2022). https://doi.org/10.1007/s10695-022-01053-9

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