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1 May 2003 IN VITRO DEVELOPMENT AND CHARACTERIZATION OF A MANATEE BRONCHIAL CELL LINE
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Abstract

In the present study, culture conditions that promote the growth and differentiation of manatee respiratory tract epithelial cells toward a mucociliary phenotype were determined. Characterization of a manatee-specific cell line enables investigators to conduct in vitro testing where live-animal experimentation is not possible. Cell cultures were established from both explants and enzymatically dissociated cells that were isolated from manatee bronchial tissue. To modulate their differentiation, bronchial epithelial cells were grown on Transwell® collagen membranes either submerged or at an air–liquid interface. Growth on a collagen membrane at an air–liquid interface and medium supplemented with retinoic acid was required to promote a mucociliary phenotype. When cells were grown in submerged cultures without retinoic acid, they appeared more squamous and were not ciliated. Intracellular keratin proteins were detected in both submerged and interface cultures. Cultured manatee bronchial epithelial cells will facilitate future studies to investigate their potential role in pulmonary disease associated with brevetoxicosis after exposure to the red-tide organism, Karenia brevis.

JAMES M. SWEAT, CALVIN M. JOHNSON, and E. PAUL J. GIBBS "IN VITRO DEVELOPMENT AND CHARACTERIZATION OF A MANATEE BRONCHIAL CELL LINE," In Vitro Cellular & Developmental Biology - Animal 39(5), 249-256, (1 May 2003). https://doi.org/10.1290/1543-706X(2003)039<0249:IVDACO>2.0.CO;2
Received: 24 March 2003; Accepted: 1 July 2003; Published: 1 May 2003
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