抗原递呈细胞 ( antigen presenting cell,APC) 定义:是能摄取、加工、处理抗原并将抗原信 息提呈给淋巴细胞的细胞 分类:专职抗原递呈细胞—巨噬细胞、树 突状细胞、B细胞等

ELEMENTS FOR TISSUE REGENERATIONENGINEERING CELLS Autologous, Adult (pulp and bone marrow stromal stem cell)

How does it work? Ofloxacin belongs to a group of broad spectrum antibiotics called the quinolones. It works by entering the bacterial cell and inhibiting a chemical called DNA-gyrase which is involved in the production of genetic material (DNA). This therefore prevents the bacteria from reproducing

The Extracellular Matrices Part. 2. Elastin fibers. 3. Proteoglycans(PG) and glycosaminoglycans (GAG). 4. Cell-adhesion molecules (CAM)

biologically active model of ECM acts as an insoluble regulator of cell function image removed due to copyright considerations

Introduction. Chapter 1. Irreversible Healing of Extracellular Matrix. Chapter 2. Cell-Matrix Interactions. Chapter 3. Synthesis of Tissues and Organs. TEXT: I. V. Yannas. Tissue and Organ Regeneration in Adults. New York: Springer, 2001

The Cell and Its Membrane Molecules Plasma membrane-5nm Rough ER Smooth ER Nucleus-3-10 um Nucleolus Nuclear pore -Golgi complex Extracellular

Reversible ligation of Ubiquitin and Ubls to other proteins. Figure by MIT OCW. After Figure 1 in Hochstrasser M. Evolution and function of ubiquitin-like protein-conjugation systems. Nat Cell Biol. 2000 Aug:

Figure 2 in Muratani M, Tansey WP. \How the ubiquitin-proteasome system controls transcription.\ Nat Rev Mol Cell Biol. 2003 Mar; 4(3): 192-201. Regulation of TCR by ubiquitylation of RNA polymerase II. Transcription-coupled repair (TCR)is the mechanism through which mutations in actively transcribed genes are preferentially repaired. a Elongating RNA polymerase II (pol II)

Muscle cells But if in the same organIsm, should have the same DNA per Nerve cells( cell Different cells have different clusters of genes active Development and differentiation of embryos is controlled by signaling molecules that alter gene expression in cells