Search results
Results From The WOW.Com Content Network
Instead, plasma cells are identified through flow cytometry by their additional expression of CD138, CD78, and the Interleukin-6 receptor. In humans, CD27 is a good marker for plasma cells; naïve B cells are CD27−, memory B-cells are CD27+ and plasma cells are CD27++. [5] The surface antigen CD138 (syndecan-1) is expressed at high levels. [6]
Light micrograph of a moss's leaf cells at 400X magnification. The following outline is provided as an overview of and topical guide to cell biology: . Cell biology – A branch of biology that includes study of cells regarding their physiological properties, structure, and function; the organelles they contain; interactions with their environment; and their life cycle, division, and death.
The cell membrane, or plasma membrane, is a selectively permeable [citation needed] biological membrane that surrounds the cytoplasm of a cell. In animals, the plasma membrane is the outer boundary of the cell, while in plants and prokaryotes it is usually covered by a cell wall.
Through this antigen recognition and other cell interactions the B cell becomes activated and then divides and differentiates to become a plasma cell. The plasma cell, a B cell end product, is a very active antibody-secreting cell that helps protect the body by attacking and binding to antigen.
The Human Proteome Project [1] (HPP) is a collaborative effort coordinated by the Human Proteome Organization. [2] Its stated goal is to experimentally observe all of the proteins produced by the sequences translated from the human genome .
More recently, a Science article published in 2004 described structures that connected PC12 cells together, as well as other types of cell cultures. [ 7 ] [ 18 ] This study coined the term "tunneling nanotubes" and also showed that nanotube formation between cells is correlated with both membrane and organelle transfer. [ 7 ]
The ability of microplasma to kill bacteria cells and accelerate the replication of healthy tissue cells is known as the “plasma kill/plasma heal” process, this led scientists to further experiment with the use of microplasmas for wound care. Preliminary tests have also demonstrated successful treatments of some types of chronic wounds.
The cell was first discovered by Robert Hooke in 1665, which can be found to be described in his book Micrographia. In this book, he gave 60 observations in detail of various objects under a coarse, compound microscope. One observation was from very thin slices of bottle cork. Hooke discovered a multitude of tiny pores that he named "cells".