Stem cells function as ... stem cell behavior. In animals, the signaling molecules used within stem cell niches are often the same used to organize growth and tissue patterning during ...

For example, millions of muscle cells make up muscle tissue. An organ is made from two or more tissues, which all work together to do a particular job, like the heart in animals or a leaf in a plant.

The variable expression level of these markers that has been observed probably arises from species differences, tissue source and culture conditions. Figure 2: Stromal cells in the haematopoietic ...

Shihabeddin et al utilized single-cell RNA-Seq analysis of adult P23H zebrafish animals to identify transcription factors (e2fs, Prdm1a, Sp1) expressed selectively in neural progenitors and immature ...

The organizer, a group of cells in the embryo that directs the developmental fates and morphogenesis of other embryonic cells, has been identified in human tissue for the first time, according to a ...

Down the hall, glass slides of gorilla, bonobo and elephant brain tissue, stained blue and brown, lie drying on tables and counters. From von Economo's work, Allman learned that the unusual cells ...