Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigma

Rodlet cells are an unusual cell type found exclusively in teleost fishes. Their principal characteristics are a fibrous capsule and arrow or club-like structures pointing towards the apex of the cell, which are called rodlets. Rodlet cells were first described by Thelohan (1892) as undetermined spo...

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Autor principal:	SCHMACHTENBERG,OLIVER
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2007
Materias:	fish immune cell parasite rodlet cell teleosts
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000100005
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spelling	oai:scielo:S0716-078X20070001000052007-04-12Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigmaSCHMACHTENBERG,OLIVER fish immune cell parasite rodlet cell teleosts Rodlet cells are an unusual cell type found exclusively in teleost fishes. Their principal characteristics are a fibrous capsule and arrow or club-like structures pointing towards the apex of the cell, which are called rodlets. Rodlet cells were first described by Thelohan (1892) as undetermined sporozoan fish parasites, and soon after named Rhabdospora thelohani by Laguesse (1895). In 1906, a presently ongoing controversy started, with Plehn's independent characterization of rodlet cells as endogenous glandular cells, and a prompt refutation by Laguesse (1906). Both maintained their position, and during the following century both views continued to coexist with varying popularity, while additional interpretations of rodlet cell function were proposed. Here I present observations of live rodlet cells from the olfactory epithelium of the marine teleost Isacia conceptionis. Rodlet ejection was monitored and the fate of rodlet cells and ejected rodlets was tracked for up to 12 h. While rodlet cells died within a few hours, usually after rodlet expulsion, the rodlets remained stable over the observation period. These results are discussed in the light of the current hypotheses regarding rodlet cell functioninfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.80 n.1 20072007-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000100005en10.4067/S0716-078X2007000100005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	fish immune cell parasite rodlet cell teleosts
spellingShingle	fish immune cell parasite rodlet cell teleosts SCHMACHTENBERG,OLIVER Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigma
description	Rodlet cells are an unusual cell type found exclusively in teleost fishes. Their principal characteristics are a fibrous capsule and arrow or club-like structures pointing towards the apex of the cell, which are called rodlets. Rodlet cells were first described by Thelohan (1892) as undetermined sporozoan fish parasites, and soon after named Rhabdospora thelohani by Laguesse (1895). In 1906, a presently ongoing controversy started, with Plehn's independent characterization of rodlet cells as endogenous glandular cells, and a prompt refutation by Laguesse (1906). Both maintained their position, and during the following century both views continued to coexist with varying popularity, while additional interpretations of rodlet cell function were proposed. Here I present observations of live rodlet cells from the olfactory epithelium of the marine teleost Isacia conceptionis. Rodlet ejection was monitored and the fate of rodlet cells and ejected rodlets was tracked for up to 12 h. While rodlet cells died within a few hours, usually after rodlet expulsion, the rodlets remained stable over the observation period. These results are discussed in the light of the current hypotheses regarding rodlet cell function
author	SCHMACHTENBERG,OLIVER
author_facet	SCHMACHTENBERG,OLIVER
author_sort	SCHMACHTENBERG,OLIVER
title	Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigma
title_short	Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigma
title_full	Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigma
title_fullStr	Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigma
title_full_unstemmed	Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigma
title_sort	epithelial sentinels or protozoan parasites?: studies on isolated rodlet cells on the 100th anniversary of an enigma
publisher	Sociedad de Biología de Chile
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000100005
work_keys_str_mv	AT schmachtenbergoliver epithelialsentinelsorprotozoanparasitesstudiesonisolatedrodletcellsonthe100thanniversaryofanenigma
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Epithelial sentinels or protozoan parasites?: Studies on isolated rodlet cells on the 100th anniversary of an enigma

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