RT info:eu-repo/semantics/article T1 Molecular Characterization and Developmental Expression Pattern of the Chicken Apolipoprotein D Gene: Implications for the Evolution of Vertebrate Lipocalins A1 Ganfornina Álvarez, María Dolores A1 Sánchez Romero, Diego A1 Pagano, Aldo A1 Tonachini, Laura A1 Descalzi-Cancedda, Fiorella A1 Martínez, Salvador K1 Nervioso, Sistema - Evolución K1 Embriología K1 Células clonales AB The insect Lazarillo and the mammalian apolipoprotein D (ApoD) are orthologous members of the lipocalinprotein family. We report the cloning and embryonic expression of chicken ApoD, the first molecularlycharacterized nonmammalian ApoD. We also report the ApoD expression in mouse during postnataldevelopment and some novel aspects of the expression of the paralogous lipocalin prostaglandin D-synthase(PGDS) and discuss these results in view of the lipocalin family evolution in vertebrates. ApoD is expressedin subsets of central nervous system (CNS) neurons and glia during late chicken embryogenesis. Contraryto mouse ApoD, no expression appears in neural crest-derived cephalic mesenchyme and blood vesselpericytes. Also, ApoD is expressed in developing chicken feathers. These expressions are corroborated byquantitative reverse transcriptase-polymerase chain reaction profiles. ApoD is expressed during mousepostnatal development in a subset of CNS neurons, astrocytes and oligodendrocytes, but also in meningesand pericytes. Chicken PGDS is expressed in brain meninges and perivascular cells. Our results suggestthat the amniote last common ancestor expressed ApoD and PGDS in the brain during embryogenesis. ApoDappears restricted to ectodermal derivatives, whereas PGDS is expressed by derivatives of the three germlayers. PB Wiley-Liss SN 1058-8388 YR 2005 FD 2005 LK http://uvadoc.uva.es/handle/10324/6078 UL http://uvadoc.uva.es/handle/10324/6078 LA eng NO Developmental Dynamics, 2005, vol. 232, p. 191-199 NO Producción Científica DS UVaDOC RD 27-dic-2024