The costa of trichomonads: A complex macromolecular cytoskeleton structure made of uncommon proteins.

abstract：BACKGROUND:The translocase of the mitochondrial inner membrane (TIM) imports most of the nucleus-encoded proteins that are destined for the matrix, inner membrane (IM) and the intermembrane space (IMS). Trypanosoma brucei, the infectious agent for African trypanosomiasis, possesses a unique TIM complex consisting of se...

journal_title：Biology of the cell

authors： Singha UK,Tripathi A,Smith JT Jr,Quinones L,Saha A,Singha T,Chaudhuri M

更新日期：2020-10-20 00:00:00

abstract：:Ultrastructural morphometry (point-counting method) was used to evaluate stereological parameters of rough endoplasmic reticulum (RER), Golgi complex, secretory granules, mitochondria and lysosomes of Rana ridibunda pituitary corticotropic (ACTH) cells in animals subjected to constant environmental conditions (CEC) in...

journal_title：Biology of the cell

authors： Gracia-Navarro F,Garcia-Navarro S,Garcia-Herdugo G

更新日期：1986-01-01 00:00:00

abstract：:Multidrug-resistant (MDR) variants of a human osteosarcoma cell line (U-2 OS) have been recently obtained by continuous exposure to doxorubicin (DX). The growth and phenotypic characteristics of these cell lines have been demonstrated to be related to the level of expression of P-glycoprotein. In this work, the morpho...

journal_title：Biology of the cell

authors： Zini N,Scotlandi K,Baldini N,Nini G,Sabatelli P,Maraldi N

更新日期：1995-01-01 00:00:00

abstract：:Photoperiodic control of several biological rhythms is exerted through the inhibitory effect of light on melatonin synthesis in the pineal organ. Hydroxyindole-O-methyltransferase (HIO-MT), the last acting-enzyme in melatonin biosynthesis, constitutes a specific marker of melatoninergic cells. In the present study, an...

journal_title：Biology of the cell

authors： Guerlotte J,Voisin P,Brisson P,Faure JP,Collin JP

更新日期：1988-01-01 00:00:00

abstract：:Revision of the reference map of the polytene chromosomes of Drosophila subobscura was started by means of the electron microscope. We present a map of regions 70B to 72D of the E chromosome obtained from squashed and thin-sectioned salivary glands. It was observed that the total number of bands in divisions 70B to 72...

journal_title：Biology of the cell

authors： Pérez-Alonso M,Cuenca JB,De Frutos R

更新日期：1988-01-01 00:00:00

abstract：:The chromosomal localization of the mouse gene coding for the 68 kDa intermediate filament subunit of neurones (NF-L) was determined by in situ hybridization using specific 3H-labelled DNA probes. There is only one copy of the NF-L gene. The gene encoding NF-L is located on chromosome 14 region (D1-E1). ...

journal_title：Biology of the cell

authors： Mattei MG,Duprey P,Li ZL,Mattei JF,Paulin D

更新日期：1989-01-01 00:00:00

abstract：BACKGROUND INFORMATION:Substantial evidence indicates the existence of NCSCs (neural crest-derived stem cells) in embryonic mandibular processes; however, they have not been fully investigated or isolated. The aim of the present study was to isolate stem cells from mandibular process during embryonic development by MAC...

journal_title：Biology of the cell

authors： Zhang J,Duan X,Zhang H,Deng Z,Zhou Z,Wen N,Smith AJ,Zhao W,Jin Y

更新日期：2006-10-01 00:00:00

abstract：:The centrosome of the slime mould Dictyostelium discoideum displays a morphology markedly different from centriolar centrosomes or yeast spindle pole bodies, while fulfilling the same conserved functions in the organization of the microtubule cytoskeleton. Recent advances suggest that the Dictyostelium centrosome may ...

journal_title：Biology of the cell

authors： Daunderer C,Schliwa M,Gräf R

更新日期：1999-05-01 00:00:00

abstract：BACKGROUND INFORMATION:Claudin-1 (CLDN1) is a four-span transmembrane protein localised at cell-cell tight junctions (TJs), playing an important role in epithelial impermeability and tissue homoeostasis under physiological conditions. Moreover, CLDN1 expression is up-regulated in several cancers, and the level of CLDN1...

journal_title：Biology of the cell

authors： Clément CMH,Deffieu MS,Dorobantu CM,Baumert TF,Ayala-Nunez NV,Mély Y,Ronde P,Gaudin R

更新日期：2020-05-01 00:00:00

abstract：:The activities of three mycotoxins isolated from the hyphomycete Metarhizium anisopliae: destruxin A, B, and E (DA, DB and DE) are described and compared in vitro on leukemic cells. Their antitumor effect was investigated by flow cytometry on growth, cell viability and cell cycle perturbation 48 h after destruxin expo...

journal_title：Biology of the cell

authors： Odier F,Vey A,Bureau JP

更新日期：1992-01-01 00:00:00

abstract：:The occurrence of the tubulin post-translational modification, polyglycylation, in stable microtubular structures was investigated during morphogenesis in two ciliates, Paramecium and Frontonia atra, belonging to the Epiplasmata group. This analysis was carried out by means of immunofluorescence and post-embedding imm...

journal_title：Biology of the cell

authors： Iftode F,Clérot JC,Levilliers N,Bré MH

更新日期：2000-12-01 00:00:00

abstract：BACKGROUND INFORMATION:There are several reports indicating that starved fibroblasts show higher proliferation rates when re-fed with foetal bovine serum. We have evidence demonstrating that this phenomenon is related to secretory proteins which may be beneficial to wound healing. RESULTS:After re-feeding, 16 and 72 h...

journal_title：Biology of the cell

authors： Golpour M,Fattahi S,Niaki HA,Hadipoor A,Abedian Z,Ahangarian GR,Parsian H,Mosapour A,Khorasani HR,Vaziri HR,Bijani A,Mostafazadeh A

更新日期：2014-05-01 00:00:00

abstract：BACKGROUND INFORMATION:Available data concerning the sperm morphology of teleost fishes demonstrate wide variation. In the present study, the spermatozoa of Siberian sturgeon (Acipenser baerii Brandt, 1869), a chondrostean fish, was investigated. In contrast with teleost fish, chondrostean spermatozoa have a head with ...

journal_title：Biology of the cell

authors： Psenicka M,Alavi SM,Rodina M,Gela D,Nebesarova J,Linhart O

更新日期：2007-02-01 00:00:00

abstract：:The ciliated protozoan Paramecium harbours a particularly large diversity of microtubule networks, ranging from the elaborate and stable ciliary axonemes and basal bodies to very dynamic cytoplasmic, cortical or intranuclear arrays. Their organization and individual cycle of assembly/disassembly are well known and ext...

journal_title：Biology of the cell

authors： Dupuis-Williams P,Klotz C,Mazarguil H,Beisson J

更新日期：1996-01-01 00:00:00

abstract：:Toad bladder epithelial cells were homogenized and fractionated by Percoll density-gradient centrifugation. Binding of tritium-labeled vasopressin ([3H]AVP) was measured in surface membranes (SM), microsomes (M), and a 100,000 g (60-min) microsomal supernatant fraction (S). More than two-thirds of the total receptors ...

journal_title：Biology of the cell

authors： Eggena P,Ma CL

更新日期：1989-01-01 00:00:00

abstract：:Variant surface glycoprotein (VSG) of Trypanosoma brucei brucei AnTat 1.1 was released by means of the procedure described by Baltz et al. ([1976], Ann. Immunol. [Inst. Pasteur] 127C, 761-774). The concanavalin-A chromatography yielded 3 VSG fractions according to the addition, in the elution buffer, of alpha-methyl-D...

journal_title：Biology of the cell

authors： Boutignon F,Hublart M,Gomes V,Mendonca-Previato L,Tetaert D,Huet-Duvillier G,Degand P

更新日期：1988-01-01 00:00:00

abstract：:The oligochaete annelids, belonging to the subfamily Tubificinae, produce two types of spermatozoa: eusperm (the fertilising ones) and parasperm, protecting and carrying the eusperm. The pathway for the production of the two types is common until the onset of meiosis, but then a regular meiosis produces eusperm, where...

journal_title：Biology of the cell

authors： Ferraguti M,Fascio U,Boi S

更新日期：2002-05-01 00:00:00

abstract：:The dynamics of change in mitochondria-rich (MR) cells density in the skin epithelium of Bufo viridis was studied on skin biopsies taken in vivo, throughout experimental periods lasting up to 3 months. When the bathing solution contained Cl-, MR cells' density (Dmrc) greatly decreased. There was one exception, when th...

journal_title：Biology of the cell

authors： Katz U,Gabby S

更新日期：1995-01-01 00:00:00

abstract：BACKGROUND INFORMATION:TSPO (translocator protein), previously known as PBR (peripheral-type benzodiazepine receptor), is a ubiquitous 18 kDa transmembrane protein that participates in diverse cell functions. High-affinity TSPO ligands are best known for their ability to stimulate cholesterol transport in organs synthe...

journal_title：Biology of the cell

authors： Ostuni MA,Tumilasci OR,Péranzi G,Cardoso EM,Contreras LN,Arregger AL,Papadopoulos V,Lacapere JJ

更新日期：2008-07-01 00:00:00

abstract：BACKGROUND INFORMATION:Nucleolin is a major nucleolar protein which is highly expressed in rapidly dividing cells and cancer cell lines. This protein is claimed to be multifunctional and could play a role in rRNA (ribosomal RNA) synthesis, as well as in cell division or response to cellular stresses. Therefore, how nuc...

journal_title：Biology of the cell

authors： Storck S,Thiry M,Bouvet P

更新日期：2009-03-01 00:00:00

abstract：:Cilia from quail oviduct were isolated with their membrane. The ultrastructural study revealed a good preservation of cilia in the purified fraction. Electrophoresis on SDS-PAGE showed a reproducible pattern of ciliary proteins, the major bands being those of tubulins 57 kDa and dyneins above 250 kDa. Among the minor ...

journal_title：Biology of the cell

authors： Chailley B,Bork K,Gounon P,Sandoz D

更新日期：1986-01-01 00:00:00

abstract：:Alpha 2-macroglobulin (alpha 2M) is a plasma inhibitor of proteinases, the steric mechanism of which is based on a considerable conformational change. The typical and distinct H-like shape of alpha 2M-chymotrypsin (alpha 2M-chy) complexes seen by electron microscopy led us to an ultrastructural study of the binding of...

journal_title：Biology of the cell

authors： Boisset N,Taveau JC,Barray M,Van Leuven F,Delain E,Lamy JN

更新日期：1988-01-01 00:00:00

abstract：:Extensive developmentally programmed DNA rearrangements, including thousands of internal deletions, occur in the differentiating somatic macronucleus in Tetrahymena thermophila. Some deletion systems involve the use of multiple alternative deletion sites. We report here the cloning and the sequences of three new alter...

journal_title：Biology of the cell

authors： Chau MF,Orias E

更新日期：1996-01-01 00:00:00

abstract：:Previous studies suggest that oligodeoxynucleotide (ODN) cellular uptake is cell cycle-dependent which may have important implications in cancer cell targeting. To further our understanding of ODN transport and activity, this study examines the relationships between the cell cycle, ODN cellular uptake, intracellular t...

journal_title：Biology of the cell

authors： Wu-Pong S,Bard J,Huffman J,Jimerson J

更新日期：1997-07-01 00:00:00

abstract：:The membrane content in phospholipids along the secretory pathway in rat pancreatic B-cells was studied in situ by high-resolution cytochemistry, applying the recently introduced phospholipase A2-gold technique. The gold particles were mostly associated with cell membranes, and the various types of membranes were labe...

journal_title：Biology of the cell

authors： Coulombe PA,Bendayan M

更新日期：1989-01-01 00:00:00

abstract：:The communication of calcium signals between cells is known to be operative between neurons where these signals integrate intimately with electrical and chemical signal communication at synapses. Recently, it has become clear that glial cells also exchange calcium signals between each other in cultures and in brain sl...

journal_title：Biology of the cell

authors： Braet K,Cabooter L,Paemeleire K,Leybaert L

更新日期：2004-02-01 00:00:00

abstract：:In order to determine whether the human lactotransferrin receptor recently described on platelets was also present on hematopoietic precursors, we investigated its presence and characteristics on the megakaryocytic Dami cell line. The reversible binding of human 5-(([2-(carbo(hydrazino)methyl]thio)acetyl)aminofluoresc...

journal_title：Biology of the cell

authors： Nillesse N,Pierce A,Lecocq M,Benaissa M,Spik G

更新日期：1994-01-01 00:00:00

abstract：:As a rule, chloride movement (JC1-) across amphibian skin is considered to be passive; this is implied in fact for preparations incubated in Ringer's fluid, since short-circuit current (Isc) is the quantitative expression of net, active sodium transport (JNa+). The nature of the Cl- pathway(s) was investigated by incu...

journal_title：Biology of the cell

authors： Crabbe J,Beaujean V,Devuyst O

更新日期：1989-01-01 00:00:00

abstract：:The dodecasatellite is a 11/12 bp tandemly repeated sequence which is overrepresented, with regard to its genomic representation, in extrachromosomal circular DNAs from D melanogaster embryos. Here we show that a bacterial plasmid carrying a cluster of dodecasatellite is not able to replicate efficiently in cultured c...

journal_title：Biology of the cell

authors： Renault S,Degroote F,Picard G

更新日期：1993-01-01 00:00:00

abstract：BACKGROUND INFORMATION:During apoptosis, the first morphological change is a distinct cell shrinkage known as the AVD (apoptotic volume decrease). This event is driven by a loss of intracellular K(+), which creates an osmotic gradient, drawing water out of the cell through AQPs (aquaporins). Loss of water in balance wi...

journal_title：Biology of the cell

authors： Jablonski EM,Hughes FM Jr

更新日期：2006-01-01 00:00:00