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1.
P Couillin R Mollicone M C Grisard A Gibaud N Ravisé J Feingold R Oriol 《Cytogenetics and cell genetics》1991,56(2):108-111
Seventy-one human x mouse hybrid cell lines were used to map the locus of a human alpha-3-fucosyltransferase to 11q. The enzyme transfers fucose onto H type 2 more efficiently than onto sialyl-N-acetyllactosamine, suggesting that it is the myeloid type of alpha-3-fucosyltransferase (Mollicone et al., 1990), which makes the 3-fucosyllactosamine epitope on polymorphonuclear cells and monocytes. This epitope is also known as CD15 (Tetteroo et al., 1987). 相似文献
2.
Dr. P. Gil-Loyzaga R. Pujol R. Mollicone A.-M. Dalix R. Oriol 《Cell and tissue research》1989,257(1):17-21
Summary The presence of human blood-group antigens was analyzed in the rat cochlea during its postnatal development, using anti-A, anti-B and anti-H antibodies. At no stage was reactivity with anti-A antibody observed. With the anti-H antibody, a strong reactivity was observed from 1 to 9 days after birth within hair cells and some other surface epithelial cells of the cochlear duct. After postnatal day 9, only a faint reactivity persisted in a few non-sensory cells. With the anti-B antibody, only hair cells were selectively labeled. At early stages (postnatal day 1 and 3), the reactivity was intense and observed both around the cell surface and within the supranuclear region of cytoplasm. Later on, the reactivity decreased; it was limited at postnatal day 9 to a reactive spot below the cuticular plate. Results are compared with a preliminary finding describing the first appearance of B and H antigens in the organ of Corti at a prenatal stage, and with data concerning other sensory and neural structures. The appearance and progressive disappearance of B and H antigens on sensory and non-sensory cells can be correlated with significant events in the development of the cochlea. The transient expression of B and H antigens in cochlear sensory cells may correspond to developmental changes in their surface glycoconjugates. 相似文献
3.
I. Reguigne-Arnould S. Faure M. Chery L. Mota-Vieira R. Mollicone J.J. Candelier R. Oriol P. Couillin 《Genomics》1996,32(3):458
We have regionally localized 49 microsatellite markers developed by Généthon using a panel of previously characterized somatic cell hybrids that retain fragments from chromosome 19. The tight correlation observed between the physical and the genetic orders of the microsatellites provide cytogenetic anchorages to the genetic map data. We propose a position for the centromere just above D19S415, from the study of two hybrids, each of which retains one of the two derivatives of a balanced translocation t(1;19)(q11;q11). Microsatellites, which can be identified by a standard PCR protocol, are useful tools for the localization of disease genes and for the establishment of YAC or cosmid contigs. These markers can also judiciously be used for the characterization of new hybrid cell line panels. We report such a characterization of 11 clones, 8 of which were obtained by irradiation-fusion. Using the whole hybrid panel, we were able to define the order of 12 pairs of genetically colocalized microsatellites. As examples of gene mapping by the combined use of microsatellites and hybrid cell lines, we regionally assigned the PVS locus between the 19q13.2 markers D19S417 and D19S423 and confirmed the locations of fucosyltransferase loci FUT1, FUT2, and FUT5. 相似文献
4.
Carla Tatone Christina Grietje Van Eekelen Rosella Colonna 《Molecular reproduction and development》1994,38(2):200-208
The ability of parthenogenetically activated mouse eggs to establish a plasma membrane (PM) block to sperm penetration was studied. Zona-free eggs preloaded with Hoechst 33342 were activated by exposure to ethanol or OAG (1-oleoyl-2-acetyl-sn-glycerol) and inseminated after different periods. Eggs challenged with sperm at 30- or 60-min postactivation displayed a fertilization frequency significantly lower than that of control eggs. Conversely, when insemination was carried out at 120-min postactivation, the proportion of fertilized eggs was equivalent to that observed in the control group. Moreover, we report that when the eggs were induced to resume meiosis without any notable loss of CGs (egg exposure to OAG at 100 μM external Ca2+ or to heat shock), a normal ability to be penetrated was recorded at 30-min postactivation. Similar behaviour was exhibited by eggs that underwent a CG exocytosis close to that triggered by sperm in absence of nuclear activation (microinjection of inositol 1,4,5-trisphosphate into the egg at 1 μM cytosolic concentration). Present data support the conclusion that parthenogenetically activated mouse eggs are capable of a transitory PM block response that requires both CG exocytosis and meiosis resumption to occur. © 1994 Wiley-Liss, Inc. 相似文献
5.
Manuel Remezal Pablo Gil-Loyzaga Rosella Mollicone Rafael Oriol 《Cell and tissue research》1993,274(1):21-26
The possible structure of human blood-group antigens, as found in cochlear hair cells of 3-day-old rats, is suggested. Data were obtained from immunocytochemical studies using 77 antibodies against the major human blood group antigens of the ABO, H, I and Lewis genetic systems. Neither the anti-A-related nor the anti-Lewis-related antibodies showed any positive immunoreaction on hair cells. In contrast, anti-B, anti-AB and anti-H antibodies displayed specific positive immunoreactive patterns on the hair cells. The results suggest that, in immature hair cells, two main glycoconjugate structures of the lactoseries are present: H type 2 antigen, which is the precursor of the B type 2 antigen, and the B type 2 antigen itself. Similar H and B carbohydrate structures have been reported in rat olfactory receptors. The type 2 glycoconjugates carrying these H and B antigens of auditive and olfactory receptors are resistant to fixation and paraffin embedding, suggesting that they might be glycoproteins. These auditive and olfactory H and B antigens must be different from the B-related antigens that are expressed by pseudo-unipolar neurons of rat posterior root ganglia, that are built from type 4 core chains, and that are destroyed by routine paraffin embedding procedures. 相似文献
6.
R Mollicone J J Candelier B Mennesson P Couillin A P Venot R Oriol 《Carbohydrate research》1992,228(1):265-276
The use of synthetic trisaccharides as acceptors led to the definition of five main (1----3)-alpha-L-fucosyltransferase activity patterns in human adult tissues: (I). Myeliod cells, granulocytes, monocytes, and lymphoblasts, transfer an alpha-L-fucopyranosyl group to O-3 of a 2-acetamido-2-deoxy-D-glucosyl residue of H blood-group Type 2 oligosaccharide [alpha-L-Fucp-(1----2)-beta-D-Galp-(1----4)-beta-D-GlcpNAc----R] with Mn2+ as activator. (II) Brain has the same acceptor specificity pattern as myeloid cells, but can also use Co2+ as activator. (III) Plasma and liver transfer an alpha-L-furopyranosyl group to H blood-group Type 2 and to sialyl-N-acetyllactosamine [alpha-NeuAc-(2----3)-beta-D-Galp-(1----4)-beta-D-GlcpNAc----R]. (IV) Intestine, gall bladder, kidney, and milk have the same activity as (III), but also transfer an alpha-L-fucopyranosyl group to O-4 of a 2-acetamido-2-deoxy-D-glucose residue of H blood-group Type 1 [alpha-L-Fucp-(1----2)-beta-D-Galp-(1----3)-beta-D-GlcpNAc----R] and sialyl Type 1 [alpha-NeuAc-(1----3)-beta-D-Galp-(1----3)-beta-D-GlcpNAc----R]. (V) Stomach mucosa is not able to use sialyl-N-acetyllactosamine, but can transfer an alpha-L-fucopyranosyl group to the other Type 1 and Type 2 acceptors. Unlike in adult tissue, a single myeloid-like pattern of (1----3)-alpha-L-fucosyltransferase activity was found at early stages of development in all tissues tested. This embryonic enzyme is later progressively replaced by enzymes or mixtures of enzymes having the corresponding adult patterns of enzyme expression. All lymphoblastoid cell lines and half of the tumor epithelial cell lines tested expressed the myeloid-like pattern of enzyme found in normal embryonic tissues. The remaining tumor epithelial cell lines expressed different forms of (1----3/4)-alpha-L-fucosyltransferase acceptor specificity patterns. 相似文献
7.
Paolo Perticone Caterina Tanzarella Fabrizio Palitti Ruggero Ricordy Pietro Di Chiara Giuseppe Di Pietro Franco Spirito Gianpietro Diana Rosella De Salvia Marco Rizzoni 《Chromosoma》1976,56(3):243-248
The composition in segregated haploid sets of paternal and maternal chromosomes has been studied in order to verify whether their composition is uniparental of mixed, fixed or variable. Primary cultures where prepared using kidneys from hybrids of strains of Mus musculus in which the parental chromosomes are distinguishable; the maternal set consists of 20 teleocentric chromosomes, the paternal set of 9 metacentric chromosomes, derived by Robertsonian fusion and 2 telocentrics. Applying Seabright's banding technique, an analysis of segregated haploid and diploid cells, which have originated spontaneously through polyploidisation-segregation processes was carried out. It was concluded that the haploid sets have a variable composition of paternal and maternal chromosomes. 相似文献
8.
Amol A. Verma Tejasvi Hora Hae Young Jung Michael Fralick Sarah L. Malecki Lauren Lapointe-Shaw Adina Weinerman Terence Tang Janice L. Kwan Jessica J. Liu Shail Rawal Timothy C.Y. Chan Angela M. Cheung Laura C. Rosella Marzyeh Ghassemi Margaret Herridge Muhammad Mamdani Fahad Razak 《CMAJ》2021,193(23):E859
9.
10.
Benjamin J. Ridenhour Michael A. Campitelli Jeffrey C. Kwong Laura C. Rosella Ben G. Armstrong Punam Mangtani Andrew J. Calzavara David K. Shay 《PloS one》2013,8(10)