Cell Movements in Hydra
... where cells move relative to neighboring tissue by means of self-propulsion, is also apparently exhibited by epithelial cells in certain situations, notably at sites where morphogenetic changes are taking place (e.g., bud and tentacle bases) . Epithelial cells always migrate as sheets of cells, neve ...
... where cells move relative to neighboring tissue by means of self-propulsion, is also apparently exhibited by epithelial cells in certain situations, notably at sites where morphogenetic changes are taking place (e.g., bud and tentacle bases) . Epithelial cells always migrate as sheets of cells, neve ...
cell cycle phase expansion in nitrogen
... live to inhibition of bud formation by a-factor was determined by the method of Hartwell and Unger (10) . Cell samples were removed from the steadystate cultures, sonicated to remove mature buds, and placed on agar slabs containing a-factor. The fraction of unbudded cells which formed buds was score ...
... live to inhibition of bud formation by a-factor was determined by the method of Hartwell and Unger (10) . Cell samples were removed from the steadystate cultures, sonicated to remove mature buds, and placed on agar slabs containing a-factor. The fraction of unbudded cells which formed buds was score ...
Cancer Metastases: So Close and So Far
... given the attention they deserve when examining the pathogenetic narrative of this disease. The first is that, in his book, Boveri unambiguously stated that the default state of all cells is proliferation, meaning that this important cell function is a dominant, constitutive property of all cells (2 ...
... given the attention they deserve when examining the pathogenetic narrative of this disease. The first is that, in his book, Boveri unambiguously stated that the default state of all cells is proliferation, meaning that this important cell function is a dominant, constitutive property of all cells (2 ...
Batteries (cells with spontaneous redox reactions)
... Can’t recharge because Zn2+ diffuses away. Acidic NH4+ corrodes Zn, leading to poor shelf life. ...
... Can’t recharge because Zn2+ diffuses away. Acidic NH4+ corrodes Zn, leading to poor shelf life. ...
Xp11 translocation RCC
... Characterized and defined by gene fusions involving two members (TFE3 and TFEB) of the MiT family of transcription factors ...
... Characterized and defined by gene fusions involving two members (TFE3 and TFEB) of the MiT family of transcription factors ...
Experimental Investigation of Ultrasonic Trapping
... the secondary forces are due to sound waves scattered by the particles [8, 20]. At the beginning of US application suspended cells were driven by primary acoustic radiation force and moved to the pressure nodal planes and started to form cell bands perpendicular to the direction of acoustic waves. C ...
... the secondary forces are due to sound waves scattered by the particles [8, 20]. At the beginning of US application suspended cells were driven by primary acoustic radiation force and moved to the pressure nodal planes and started to form cell bands perpendicular to the direction of acoustic waves. C ...
What the Distribution of Cell Lengths in the Root Meristem Does and
... The variation in the length of mitotic cells was analyzed in detail for both maize and wheat by Dobrochaev and Ivanov (2001). Interestingly, a considerable amount of variation in length among cells was explained by a correlation between the lengths of mitotic and interphase cells within individual ® ...
... The variation in the length of mitotic cells was analyzed in detail for both maize and wheat by Dobrochaev and Ivanov (2001). Interestingly, a considerable amount of variation in length among cells was explained by a correlation between the lengths of mitotic and interphase cells within individual ® ...
paper
... shift FACS profiles toward 2C DNA content by 5–9%. However, in studies recently published, it was demonstrated that both ⌬ulp1 and ⌬sli15 strains are inviable and that these genes have authentic roles in cell cycle progression (18–19). These two examples show situations in which the overexpression s ...
... shift FACS profiles toward 2C DNA content by 5–9%. However, in studies recently published, it was demonstrated that both ⌬ulp1 and ⌬sli15 strains are inviable and that these genes have authentic roles in cell cycle progression (18–19). These two examples show situations in which the overexpression s ...
Antibody-Dependent Cellular Phagocytosis: The Mechanism of
... resulted in the production of luciferase through activation of the reporter gene NFAT-RE/luc2. Luciferase activity was measured following a 4–24 hour induction period, after addition of the luciferase assay reagent. The dose- dependent response in the microtiter plate-based assay was then used to q ...
... resulted in the production of luciferase through activation of the reporter gene NFAT-RE/luc2. Luciferase activity was measured following a 4–24 hour induction period, after addition of the luciferase assay reagent. The dose- dependent response in the microtiter plate-based assay was then used to q ...
TLR4 signaling: negative regulation by degradation
... tion of intracellular signaling molecules. Upon stimulation, TLR4 is internalized and recruited to the late endosomes/lysosomes where Rab7b is located. In Rab7b-silenced cells, the expression of TLR4 was higher than in control cells, and translocation of TLR4 from early endosomes to late endosomes/l ...
... tion of intracellular signaling molecules. Upon stimulation, TLR4 is internalized and recruited to the late endosomes/lysosomes where Rab7b is located. In Rab7b-silenced cells, the expression of TLR4 was higher than in control cells, and translocation of TLR4 from early endosomes to late endosomes/l ...
New roles for Nanos in neural cell fate determination revealed by
... translation of their target genes. Nanos was first described as a posterior marker in Drosophila (Lehmann and Nüsslein-Volhard, 1991) and subsequent studies established three main roles for Nanos: first, it is necessary for fly posterior patterning by inhibiting hunchback translation. Second, it is ...
... translation of their target genes. Nanos was first described as a posterior marker in Drosophila (Lehmann and Nüsslein-Volhard, 1991) and subsequent studies established three main roles for Nanos: first, it is necessary for fly posterior patterning by inhibiting hunchback translation. Second, it is ...
Biology Division, National Cancer Center Research Institute Tsukiji
... There are many reports on animal viruses which induce rapid and profound inhibition of macromolecular synthesis in infected cells (Martin & Kerr, I968). These shut-off phenomena may provide a clue to regulatory mechanisms governing macromolecular syntheses in animal cells. Such studies are usually c ...
... There are many reports on animal viruses which induce rapid and profound inhibition of macromolecular synthesis in infected cells (Martin & Kerr, I968). These shut-off phenomena may provide a clue to regulatory mechanisms governing macromolecular syntheses in animal cells. Such studies are usually c ...
Methods of Enumeration of Microorganisms
... The most common procedure for the enumeration of bacteria is the viable plate count. In this method, serial dilutions of a sample containing viable microorganisms are plated onto a suitable growth medium. The suspension is either spread onto the surface of agar plates (spread plate method), or is mi ...
... The most common procedure for the enumeration of bacteria is the viable plate count. In this method, serial dilutions of a sample containing viable microorganisms are plated onto a suitable growth medium. The suspension is either spread onto the surface of agar plates (spread plate method), or is mi ...
Cell Cycle-dependent Cytotoxicity of Alkylating
... Between 1 x 10* and 2.5 x 10" cells suspended in 20 ml of medium were introduced into the elutnation chamber at a flow rate of 12 ml/ min and elutriated at room temperature by increasing the flow rate of medium (a-MEM containing 5% FBS and DNase, 20 Mg/ml) through the chamber in a stepwise manner fr ...
... Between 1 x 10* and 2.5 x 10" cells suspended in 20 ml of medium were introduced into the elutnation chamber at a flow rate of 12 ml/ min and elutriated at room temperature by increasing the flow rate of medium (a-MEM containing 5% FBS and DNase, 20 Mg/ml) through the chamber in a stepwise manner fr ...
8 Membr
... Membrane Function • Working cells must control the flow of materials to and from the environment. ...
... Membrane Function • Working cells must control the flow of materials to and from the environment. ...
Advantages over Mechanical Dissociation of Cells
... treated with pNIPAM have been observed to undergo a transition above and below the lower critical solution temperature (LCST) at 31 8C. Above the LCST (i.e., at the cell culture temperature of 37 8C), the surfaces are observed to be more hydrophobic (as observed by water contact angle), and many ce ...
... treated with pNIPAM have been observed to undergo a transition above and below the lower critical solution temperature (LCST) at 31 8C. Above the LCST (i.e., at the cell culture temperature of 37 8C), the surfaces are observed to be more hydrophobic (as observed by water contact angle), and many ce ...
3-3, 3-4, 3-5 membrane, diff, trans
... There are other molecules embedded in the membrane. The fluid mosaic model describes the membrane. cell membrane ...
... There are other molecules embedded in the membrane. The fluid mosaic model describes the membrane. cell membrane ...
Asymmetric Behavior in Stem Cells
... two blastomeres, or daughter cells, of the zygote. Asymmetry has been examined comprehensively in embryonic development of the nematode Caenorhabditis elegans, and in the insect model Drosophila melanogaster. ...
... two blastomeres, or daughter cells, of the zygote. Asymmetry has been examined comprehensively in embryonic development of the nematode Caenorhabditis elegans, and in the insect model Drosophila melanogaster. ...
A Possible Role for the Cnidarian Homologue of Serum Response
... To whom correspondence should be addressed. Fax: 49-221-4705171. E-mail: M.KROIHER@UNI-KOELN.DE. ...
... To whom correspondence should be addressed. Fax: 49-221-4705171. E-mail: M.KROIHER@UNI-KOELN.DE. ...
Reverse Engineering Models of Cell Cycle Regulation
... Bottom-Up Modeling and Reverse Engineering The physiological characteristics of living cells-their abilities to grow and divide, to respond to external stimuli, to move around, to find food or sexual partners-are regulated ultimately by networks of interacting genes and proteins. Molecular geneticis ...
... Bottom-Up Modeling and Reverse Engineering The physiological characteristics of living cells-their abilities to grow and divide, to respond to external stimuli, to move around, to find food or sexual partners-are regulated ultimately by networks of interacting genes and proteins. Molecular geneticis ...
Identification of trichoplein, a novel keratin filament
... 2003). Although structural components of other major cytoskeletal proteins, actin and tubulin, are highly conserved in different cell types, the constituent proteins of IFs show intriguing molecular diversities and are expressed in tissuespecific programs, which makes them ideal molecular markers fo ...
... 2003). Although structural components of other major cytoskeletal proteins, actin and tubulin, are highly conserved in different cell types, the constituent proteins of IFs show intriguing molecular diversities and are expressed in tissuespecific programs, which makes them ideal molecular markers fo ...
Small molecule intervention in microtubule
... of a- and b- tubulin in a GTP-dependent fashion. Microtubule dynamics play an important role in mitosis and the cell cycle (6), and interference with these dynamic processes can trigger ...
... of a- and b- tubulin in a GTP-dependent fashion. Microtubule dynamics play an important role in mitosis and the cell cycle (6), and interference with these dynamic processes can trigger ...
cell cycle and cell division
... repair and replacement of dead and worn-out cells and in reproduction. Meiosis is a reductional division as the daughter cells will have half of the chromosomes to that of the parental cell. Meiosis occurs in germinal cells to form gametes and also in spore mother cells of plants. Meiosis occurs in ...
... repair and replacement of dead and worn-out cells and in reproduction. Meiosis is a reductional division as the daughter cells will have half of the chromosomes to that of the parental cell. Meiosis occurs in germinal cells to form gametes and also in spore mother cells of plants. Meiosis occurs in ...
Cellular differentiation
In developmental biology, cellular differentiation isa cell changes from one cell type to another. Most commonly this is a less specialized type becoming a more specialized type, such as during cell growth. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Thus, different cells can have very different physical characteristics despite having the same genome.A cell that can differentiate into all cell types of the adult organism is known as pluripotent. Such cells are called embryonic stem cells in animals and meristematic cells in higher plants. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent. In mammals, only the zygote and subsequent blastomeres are totipotent, while in plants many differentiated cells can become totipotent with simple laboratory techniques. In cytopathology, the level of cellular differentiation is used as a measure of cancer progression. ""Grade"" is a marker of how differentiated a cell in a tumor is.