Distribution of Lysosomes in Cultured Cells and Ascites Tumor Cells
... outgrowth in cultures. Evidence presented suggests that hepatic cells lost their characteristic nature during a short term cultivation, so far as the acid phosphatase activity is concerned. Robbins and Gonatas (1964a, b) examined the ultrastructure in the course of mitotic division by means of elect ...
... outgrowth in cultures. Evidence presented suggests that hepatic cells lost their characteristic nature during a short term cultivation, so far as the acid phosphatase activity is concerned. Robbins and Gonatas (1964a, b) examined the ultrastructure in the course of mitotic division by means of elect ...
Anatomy & physiology of cells
... Every cell contains thousand of ribosome's and many of them attached to the RER. Each ribosome is nonmembranous structure, made of two pieces large unit and small unit and each subunit composed of rRNA. Function: protein synthesis Protein released from the ER are not mature, need further processing ...
... Every cell contains thousand of ribosome's and many of them attached to the RER. Each ribosome is nonmembranous structure, made of two pieces large unit and small unit and each subunit composed of rRNA. Function: protein synthesis Protein released from the ER are not mature, need further processing ...
Theranostics Using C-Arm X-Ray Imaging to Guide Local Reporter
... Poor cell survival and difficulties with visualization of cell delivery are major problems with current cell transplantation methods. To protect cells from early destruction, microencapsulation methods have been developed. The addition of a contrast agent to the microcapsule also could enable tracki ...
... Poor cell survival and difficulties with visualization of cell delivery are major problems with current cell transplantation methods. To protect cells from early destruction, microencapsulation methods have been developed. The addition of a contrast agent to the microcapsule also could enable tracki ...
Text Structure and Functions of the Cell Membrane The cell
... Text Structure and Functions of the Cell Membrane The cell membrane (also called the plasma membrane or plasmalemma) is the biological membrane which separates the interior ...
... Text Structure and Functions of the Cell Membrane The cell membrane (also called the plasma membrane or plasmalemma) is the biological membrane which separates the interior ...
Embryonic stem cell differentiation and the analysis of mammalian
... Pluripotent embryonic stem (ES) cells are derived from outgrowths of the pluripotent cells of the pre-implantation mouse embryo (Evans and Kaufman, 1981; Martin, 1981) and can be maintained as a homogeneous population of undifferentiated cells indefinitely in culture. ES cells share many properties ...
... Pluripotent embryonic stem (ES) cells are derived from outgrowths of the pluripotent cells of the pre-implantation mouse embryo (Evans and Kaufman, 1981; Martin, 1981) and can be maintained as a homogeneous population of undifferentiated cells indefinitely in culture. ES cells share many properties ...
The munc13-4–rab27 complex is specifically
... rab27a is thought to be important for directing secretory lysosomes to the immunologic synapse and perhaps for their release from microtubules. In munc13-4–deficient, cytotoxic lymphocytes, secretory lysosomes appear to dock on, but do not fuse with, the plasma membrane.8 munc13-4 also regulates the ...
... rab27a is thought to be important for directing secretory lysosomes to the immunologic synapse and perhaps for their release from microtubules. In munc13-4–deficient, cytotoxic lymphocytes, secretory lysosomes appear to dock on, but do not fuse with, the plasma membrane.8 munc13-4 also regulates the ...
Regulation of germ line stem cell homeostasis
... (Sunters et al., 2004; He et al., 2008; Wolgemuth et al., 2013). More recently the cyclin Ccne1 as a target of RAS signaling in germ cells has received some interest since its downregulation through siRNA inhibits SSC selfrenewal (Kanatsu-Shinohara et al., 2014). However, it is not known whether bot ...
... (Sunters et al., 2004; He et al., 2008; Wolgemuth et al., 2013). More recently the cyclin Ccne1 as a target of RAS signaling in germ cells has received some interest since its downregulation through siRNA inhibits SSC selfrenewal (Kanatsu-Shinohara et al., 2014). However, it is not known whether bot ...
Protein diffusion in plant cell plasma membranes
... likely mediated through an extensin binding motif of AtFH1 (Martinière et al., 2011). Low lateral mobility of other PM proteins might be the result of direct interactions with the cell wall or the cytoskeleton. This is perhaps the case for the WAK protein family that interact with oligogalacturonide ...
... likely mediated through an extensin binding motif of AtFH1 (Martinière et al., 2011). Low lateral mobility of other PM proteins might be the result of direct interactions with the cell wall or the cytoskeleton. This is perhaps the case for the WAK protein family that interact with oligogalacturonide ...
The Fundamental Unit of Life
... which a single cell divides and forms two new cells. It also plays a crucial part, along with the environment, in determining the way the cell will develop and what form it will exhibit at maturity, by directing the chemical activities of the cell. 40. What do you mean by nucleoid? Answer: In some o ...
... which a single cell divides and forms two new cells. It also plays a crucial part, along with the environment, in determining the way the cell will develop and what form it will exhibit at maturity, by directing the chemical activities of the cell. 40. What do you mean by nucleoid? Answer: In some o ...
Locomotion of Fundulus Deep Cells during Gastrulation1
... really smooth surfaced? Indeed, are deep cells in general smooth surfaced, like spread fibroblasts, or covered with microprotrusions, such as microvilli, like rounded fibroblasts (Erickson and Trinkaus, 1976) and like the yolk syncytial layer of the Fundulus egg (Betchaku and Trinkaus, 1978)? Or, ar ...
... really smooth surfaced? Indeed, are deep cells in general smooth surfaced, like spread fibroblasts, or covered with microprotrusions, such as microvilli, like rounded fibroblasts (Erickson and Trinkaus, 1976) and like the yolk syncytial layer of the Fundulus egg (Betchaku and Trinkaus, 1978)? Or, ar ...
Lecture 11
... response • Multistep pathways provide more opportunities for coordination and regulation of the cellular response Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... response • Multistep pathways provide more opportunities for coordination and regulation of the cellular response Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
2. Archenteron Morphogenesis in the Sea Urchin
... the sea urchin embryo as a relatively simple model system in an attempt to understand the sorts of rules observed by an embryo as it performs a single morphogenetic event. To the observer, gastrulation in this embryo involves two major cell movements. First, primary mesenchyme cells ingress and dis ...
... the sea urchin embryo as a relatively simple model system in an attempt to understand the sorts of rules observed by an embryo as it performs a single morphogenetic event. To the observer, gastrulation in this embryo involves two major cell movements. First, primary mesenchyme cells ingress and dis ...
Unit Operations of Tissue Development: Epithelial
... the biomechanical mechanisms of epithelial folding. Such computational studies, which can be generalized to explain folding epithelia in other contexts, provide important insights into the role of biomechanics and geometry during animal development. Further, they provide predictions that can be veri ...
... the biomechanical mechanisms of epithelial folding. Such computational studies, which can be generalized to explain folding epithelia in other contexts, provide important insights into the role of biomechanics and geometry during animal development. Further, they provide predictions that can be veri ...
Growth Control: A Saga of Cell Walls, ROS, and
... pollen tube is induced by ROS application and is required for ROS-induced bursting. It is intriguing in this context that rbohdeficient mutant pollen tubes (see below; Boisson-Dernier et al., 2013; Lassig et al., 2014) and root hairs (Duan et al., 2010) with low internal levels of ROS also display lo ...
... pollen tube is induced by ROS application and is required for ROS-induced bursting. It is intriguing in this context that rbohdeficient mutant pollen tubes (see below; Boisson-Dernier et al., 2013; Lassig et al., 2014) and root hairs (Duan et al., 2010) with low internal levels of ROS also display lo ...
Specialized progenitors and regeneration - Development
... *Author for correspondence (reddien@wi.mit.edu) ...
... *Author for correspondence (reddien@wi.mit.edu) ...
The role of desmoplakin during epidermal development
... differentiate correctly due to the disruption of normal cell function. If this is the case, failure of cell differentiation will be easily visualized using electron microscopy. Without proper cell differentiation, I predict that the issues within the embryo will be very distinct. One thought is that ...
... differentiate correctly due to the disruption of normal cell function. If this is the case, failure of cell differentiation will be easily visualized using electron microscopy. Without proper cell differentiation, I predict that the issues within the embryo will be very distinct. One thought is that ...
Measuring Electrical and Mechanical Properties of Red Blood Cells
... walls. We obtained, after careful measurement of the parameters involved, a plot of the optical versus hydrodynamic force as a straight line at 45 degrees. Among the parameters used by the models the laser power measurement has been the most difficult to obtain, because the usual power meters readi ...
... walls. We obtained, after careful measurement of the parameters involved, a plot of the optical versus hydrodynamic force as a straight line at 45 degrees. Among the parameters used by the models the laser power measurement has been the most difficult to obtain, because the usual power meters readi ...
The Size of It All
... an electromagnetic objective lens, which magnifies the image. The final image is seen as light and dark areas, referred to as a transmission electron micrograph. ...
... an electromagnetic objective lens, which magnifies the image. The final image is seen as light and dark areas, referred to as a transmission electron micrograph. ...
Neural stem cells in mammalian development
... the dynamic appearance and behavior of NSCs and their progeny. Haubensak and colleagues used time-lapse imaging to follow cells expressing GFP under the Tis21 promoter, which is specifically active in neurogenic cells. Labeled cells were present not only in the ventricular zone but also in the subve ...
... the dynamic appearance and behavior of NSCs and their progeny. Haubensak and colleagues used time-lapse imaging to follow cells expressing GFP under the Tis21 promoter, which is specifically active in neurogenic cells. Labeled cells were present not only in the ventricular zone but also in the subve ...
Misfolding and Aggregation ofNewly Synthesized Proteins in the
... Aggregate formation in the ER was initially studied in HeLa cells infected with Semliki Forest virus (SFV) . The structural proteins of this Toga(alpha)virus are synthesized as a polyprotein which is cotranslationally cleaved into four polypeptides (see Garoff et al ., 1982) . Of these, the two glyc ...
... Aggregate formation in the ER was initially studied in HeLa cells infected with Semliki Forest virus (SFV) . The structural proteins of this Toga(alpha)virus are synthesized as a polyprotein which is cotranslationally cleaved into four polypeptides (see Garoff et al ., 1982) . Of these, the two glyc ...
Ch 27 Bacteria and Archaea
... Some species have a capsule surrounding the cell wall. The capsule can provide protection against immune system cells (phagocytes) Some bacteria have pili – hair like structures made of protein, help bacteria to adhere to surfaces Some pili are involved in transmitting DNA between bacteria ...
... Some species have a capsule surrounding the cell wall. The capsule can provide protection against immune system cells (phagocytes) Some bacteria have pili – hair like structures made of protein, help bacteria to adhere to surfaces Some pili are involved in transmitting DNA between bacteria ...
Untitled - University of Guelph
... actin) produces small, unexpanded cells that retain a semblance of their polar growth characteristics [16–18] but in which organelle and vesicle motility are seriously compromised [19,20]. The actin cytoskeleton is thus implicated in general subcellular motility and vesicle ...
... actin) produces small, unexpanded cells that retain a semblance of their polar growth characteristics [16–18] but in which organelle and vesicle motility are seriously compromised [19,20]. The actin cytoskeleton is thus implicated in general subcellular motility and vesicle ...
Extracellular matrix
In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).