A tissue is a group of cells, in close proximity, organized to perform one or more specific functions. There are four basic tissue types defined by their morphology and function: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. Epithelial tissue creates protective boundari...
The most useful of all systems, however, breaks downanimaltissues into four classes based on the functions that the tissues perform. The first class includes all those tissues that serve an animal’s needs forgrowth, repair, and energy; i.e., the assimilation, storage, transport, andexcretion...
Tissue-resident macrophages are a heterogeneous population of immune cells that fulfill tissue-specific and niche-specific functions. These range from dedicated homeostatic functions, such as clearance of cellular debris and iron processing, to central roles in tissue immune surveillance, response to infec...
However, the multiple cell types within a tissue don't just have different functions. They also have different transcriptional programs and may well divide at different rates. Proper regulation of these rates is essential to tissue maintenance and repair. The spatial organization of the cells that ...
1.2 Phage and phage display 1.2.1 Classification Phages are a type of virus that infects and replicates within their host bacteria. They are categorized into three major branches including lytic phage, temperate phage, and non-lytic phage. Specifically, a wide variety of phage types exists, such...
T cells and macrophages in adipose tissue of HIV-infected humans or SIV-infected monkeys exhibit pro-inflammatory phenotypes and functions, such as differentiation into Th1 or Th17 CD4 T cells or M1 macrophages and production of IL-2, IFNγ, IL-17A, IL-6, and TNFα [74, 75]. These ...
The pulmonary system is composed of a variety of epithelial cell populations residing in distinct anatomical locations. Of these, the alveolar epithelial gas exchange surface consists of two cell types, the type I and type II pneumocytes, also known as a
(e.g., tertiary lymphoid structure (TLS), which is typically present in low-risk but not in high-risk patients of many cancer types). Most existing methods are designed to detect TCNs in individual tissue samples by unsupervised learning and thus not applicable for the identification of ...
proteins, which revealed the prevalent region-to-region heterogeneity in the distributions of proteins across the brain. Such resource will not only expand our knowledge of spatially-resolved brain biology and functions, but also provides the basis to inform research concerning brain disease and ...
There are three main types of epithelial tissue based on cell layers: simple, stratified, and pseudostratified. Endothelial cells line blood vessels and have key functions like regulating blood flow and immune response. The word tissue is derived from a Latin word meaningto weave.Cellsthat make up...