The portion of undifferentiated intermediate mesoderm in contact with the tips of the branching ureteric bud is known as the metanephrogenic blastema.
12.
A salamander can not only regenerate a mesenchymal cells, and the blastema functions as a self-organizing system to regenerate the limb.
13.
Horestein et al . reported a lumbosacral nephrogenic rest including blastema ( mature tubules and nephrons ) in abundant stroma unassociated to spinal dysraphism.
14.
In some contexts, the primary division is at the border of kidney and ureter, and in other contexts, the primary division is between derivatives of the metanephric blastema and those of the ureteric bud.
15.
In one experiment, T . H . Morgan found that a piece corresponding to 1 / 279th of a planarian After amputation, stump cells form a blastema formed from neoblasts, pluripotent cells found throughout the planarian body.
16.
GDNF, gonadal derived neurotrophic factor, is produced by the metanephric blastema and is essential in binding to the Ret receptor on the ureteric bud, which bifurcates and coalesces as a result to form the renal pelvis, major and minor calyces and collecting ducts.
17.
Virchow was the first to correctly link the origin of cancers from otherwise normal cells . ( His teacher M�ller had proposed that cancers originated from cells, but from special cells, which he called blastema . ) In 1855, he suggested that cancers arise from the activation of dormant cells ( perhaps similar to cells now known as stem cells ) present in mature tissue.
