The model consists in a mathematical description of the mechanisms in which different types of cells interact, synthesize and degrade extracellular matrices under the influence of biochemical factors.
Most adult stem cells are confined to producing new cells for one specific tissue, but those described by Dr. Verfaillie can turn into many different types of cell.
Although originally discovered in the pituitary gland and named for its effects on pigmentation more recent studies revealed that α-MSH interacts with different types of cells such as macrophages, neutrophils or epidermal cells resulting in a broad spectrum of functions including anti-microbial, anti-inflammatory, as well as immunomodulatory activities [4] [9].
Understanding the molecular and cellular components of the intestinal barrier, and gaining clues into the processes by which mucosal disruption occurs in the pathogenesis of IBD and NEC, is no simple task, in part owing to the large variety of different types of cells (epithelial, immune, mesenchymal and endothelial) that must interact to maintain homeostasis.
Identifying the In100-like elements in a large number of genes does not necessarily predict identical splicing patterns of these genes in different cell types, because In100-elements may interact with different cis- regulatory elements in different genes and trans-acting factors in different types of cells.
But there are different proteins in different types of cells, in sick versus healthy cells, and even at different stages of life.
Many researchers are trying to coax bone marrow cells or adult stem cells -- which can develop into many different types of cells -- to grow new muscle.
Biologic differences also exist between protons and photons, with regard to how these different types of radiation interact with living cells.
