title: Immunofluorescent localization of thymidylate synthase in the development of Trichinella spiralis and Caenorhabditis elegans.
abstract: Localization of thymidylate synthase protein in Trichinella spiralis and Caenorhabditis elegans development was followed with the use of confocal microscopy, revealing similar expression patterns in both nematode species. In T. spiralis premature muscle larvae and C. elegans dauer, L3 and L4 larvae, thymidylate synthase was detected in the nerve ring and gonad primordia, as well as T. spiralis stichosome and C. elegans pharyngeal glandular cells. In developmentally arrested T. spiralis muscle larvae, the enzyme was found localized to the gonad primordia and stichosome. High enzyme level was also observed in the embryos developing in uteri of T. spiralis female adult and C. elegans hermaphrodite forms. In the case of T. spiralis adult forms, thymidylate synthase was detected in stichosome, along esophagus wall, as well as in egg and sperm cells. While the enzyme protein present in the embryos remains in accord with its known association with proliferating systems, thymidylate synthase presence in the nerve ring, and reproductive and secretory (T. spiralis stichosomal and C. elegans pharyngeal glandular cells) systems, points to a state of cell cycle-arrest, also known to preserve the enzyme protein.
authors.affiliation: Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warszawa, Poland.
authors.forename: Barbara
authors.initials: B
authors.lastname: Gołos
authors.forename: Magdalena
authors.initials: M
authors.lastname: Dąbrowska
authors.forename: Elżbieta
authors.initials: E
authors.lastname: Wałajtys-Rode
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Zieliński
authors.forename: Patrycja
authors.initials: P
authors.lastname: Wińska
authors.forename: Joanna
authors.initials: J
authors.lastname: Cieśla
authors.forename: Elżbieta
authors.initials: E
authors.lastname: Jagielska
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Moczoń
authors.forename: Wojciech
authors.initials: W
authors.lastname: Rode
mesh_terms: D000818:Animals; D017173:Caenorhabditis elegans / Q000166:cytology / Q000201:enzymology* / Q000235:genetics / Q000254:growth & development; D029742:Caenorhabditis elegans Proteins / Q000235:genetics / Q000378:metabolism*; D004947:Esophagus / Q000166:cytology / Q000201:enzymology; D005260:Female; D018507:Gene Expression Regulation, Developmental; D007814:Larva / Q000166:cytology / Q000201:enzymology* / Q000235:genetics / Q000254:growth & development; D008297:Male; D018613:Microscopy, Confocal; D009420:Nervous System / Q000166:cytology / Q000201:enzymology / Q000254:growth & development; D009928:Organ Specificity; D010063:Ovum / Q000166:cytology / Q000201:enzymology / Q000254:growth & development; D021381:Protein Transport; D013090:Spermatocytes / Q000166:cytology / Q000201:enzymology / Q000254:growth & development; D013940:Thymidylate Synthase / Q000235:genetics / Q000378:metabolism*; D017160:Trichinella spiralis / Q000166:cytology / Q000201:enzymology* / Q000235:genetics / Q000254:growth & development
chemical_list: D029742:Caenorhabditis elegans Proteins; D013940:Thymidylate Synthase