It is also suggested how NANOG can act as a gatekeeper by suppressing any differentiation signals which would ultimately make the cell transition into a differentiated cell.
In the case of cancerous tissue, stromal cell-derived differentiation signals in particular may provide a brake on malignant growth.
These adhesions are precipitated by inflammation, fibrosis, and the paucity of tendon differentiation signals during healing.
Taken together, in the cuprizone model, cholesterol supplementation modulates the expression profile of growth factors, rebalancing proliferative and differentiation signals creating a permissive environment for repair.
Mesenchymal stem cells are loosely characterized and likely to include many populations of cells, each of which may respond differently and unpredictably to differentiation signals.
This pre-wiring not only allows the stem cells to respond quickly to differentiation signals, but it also locks them into a specific fate, the researchers believe.
To further demonstrate the impact of Wnt signaling on erythroid maturation, we used an ex vivo erythroid maturation assay35,36 in which both FL -and adult BM-derived CD71+Ter119-/lo pre-erythroblasts are exposed to differentiation signals, including Epo, and allowed to mature to CD71+Ter119+ erythroblasts over 2 days (Fig. 5a, Supplementary Figure S6a).
Neural progenitor cells (NPCs) transduced with human telomerase reverse transcriptase (hTERT), the catalytic component of telomerase, have the potential both to proliferate indefinitely in vitro and to respond to differentiation signals necessary for generating appropriate cells for transplantation.
The lab is also studying both how centrosomal and non-centrosomal microtubule arrays are formed in cells, using genetics to understand the functions of these arrays, and determining how differentiation signals impact the composition and function of centrosomes and microtubules.
Osteoclastogenesis depends on differentiation signals from stromal cells and synovial fibroblasts, and is physiologically triggered by RANKL (receptor activator of NF-κB ligand) in the presence of M-CSF and other co-stimulatory factors.
Therefore, we conclude that Dicer-null NS cells do respond to differentiation signals appropriately and initiate a differentiation program.
