What does the future hold for stem cells in relation to tissue Essay

What does the future hold for stem cells in relation to tissue engineering - Essay Example Stem cell researchers have in the recent past been involved in elucidating the effects of mechanical factors in tissue generation and engineering with regards to stem cell biology, especially as this field is still poorly understood (Pavlovic & BaÃŒ lint, 2013: p7). Stem cells possess immense potential in the field of tissue engineering. Potential hopes for future regeneration of damaged or diseased tissue are partially dependent on the use of various intricate combinations of stem cells with growth factors and scaffolds (Pavlovic & BaÃŒ lint, 2013: p61). In order to mimic the natural development of tissue in the lab, researchers require appropriate topographical and biochemical cues in a manner that is spatially controlled. Therefore, the future of stem cells in tissue engineering is dependent on the use of nano-technology, in this case nano-topography, in order to influence the behavior of cells. This includes various behaviors like proliferation, attachment, and differentiation that play vital roles in engineering of tissues. Majority of the research into stem cells and tissue engineering is currently focused on biochemical and biomechanical signals and cell adhesion and how these cooperate to enable tissues, cells, and organisms to adapt t o changes within the environment. In the future, it is possible that mechanical forces like mechano-sensing, cell matrix adhesions, cell-cell adhesions, and cell proliferation can be controlled using nano and micro-fabrication tools (Pavlovic & BaÃŒ lint, 2013: p62). This will allow researchers to understand the manner in which these processes enable cells to respond to their environment. Stem cells also have the potential to allow cellular nucleus control, which will be essential in tissue engineering. The size and morphology of the cell nucleus has emerged as a potential genome function mechanistic regulator, which means that it is a crucial

Cell Wall Biogenesis Essay Example | Topics and Well Written Essays - 1250 words

Cell Wall Biogenesis - Essay Example The wall consists of complex mixture of polysaccharides and polymers that secret the cell through a network of bonds. The plant cell walls also have enzymes, natural proteins, and phenol polymers that modify the chemical and physical properties (Carpita 445) Different plants contain unique chemical composition and structures while all have the same role of regulating the cell and providing it with a shape. The plant cells acquire biological and diverse functions crucial in human economics. In its natural form, the plant cell wall has the following commercial purposes textiles, paper, charcoal, wood products, and fibers. One can modify polysaccharides to make adhesives, thickeners, films, coatings, plastics, and gels ( Taiz and Eduardo 45). The primary cell wall has cellulose micro fibrils embedded in polysaccharide matrix. The matrix polysaccharides contain pectin, and hemicelluloses. Some of the pectin contained includes Arabinan, homogalacturonan, and galactan. Some of the hemicelluloses include xylan, callose, and xyglucan. The hydrated matrix has both flexibility and strength. The cell walls have two groups of polysaccharides called hemicelluloses and pectin and few amounts of structural protein. The polysaccharides matrix consists of wide array of polymers that vary according to cell type and plant species. A schematic diagram of major structural components of primary cell wall depicts cellulose micro fibrils with xyloglucan coatings that may cross-links to each other (Loewus 18). All the polysaccharides have their names after principal sugars for instance glucan polymer consists of glucose, xylan consists of xylose, and galactan consists of glucose. A compound name for the hemicelluloses does not mean a branched structure. Xyloglucan contain a chain of glucose residues with xylose sugars on the side chains. Glucomannan is a polymer that contains glucose and mannose. Loewus (4) says that