Many protozoans respond to adverse environmental conditions by encysting: they secrete a thick, tough wall around themselves and effectively enter a quiescent state comparable to hibernation.
We do not model quiescence explicitly because the substrate concentration in the central regions of our simulated tumors is nearly zero, so the cells there barely grow (see Mathematical Structure of the Tumor Model), effectively behaving like quiescent cells.
Additionally, this combination effectively eradicated CD34+CD38−, CD34+CD38+, and quiescent stem/progenitor CD34+ cells from BC CML patient samples.
These results demonstrate that irradiation of quiescent endothelial cells effectively suppresses subsequent their migratory capacities.
However, neither IM nor second generation tyrosine kinase inhibitors such as Dasatinib, Nilotinib or Bosutinib has so far been demonstrated to effectively induce apoptosis in the quiescent stem cell compartment [34], [35].
We identified a 17-urine-peptide biomarker panel that could effectively discriminate SJIA patients at active, quiescent, and remission disease states, and patients with active SJIA from confounding conditions including KD and FI.
It was previously shown that human serum albumin modified with mannose 6-phosphate specifically binds to M6P/IGF2R on activated but not on quiescent HSCs and gets effectively internalized, suggesting that mannose 6-phosphate substituted proteins are promising HSC-selective carriers for antifibrotic drugs [ 144].
For instance, to effectively starve tumors like low grade gliomas, which (partly) thrive on quiescent vasculature, targeting agents that recognize co-opted vessels in infiltrative tumor areas need to be developed.
In conclusion, while Sema3C has so far been mainly considered as an attractive cue for neurons and a promoter of developmental morphogenesis, the study of Yang and co-workers reveals how, in mouse models, recombinant Sema3C may effectively and selectively block hypoxia-driven aberrant angiogenesis, without affecting normal quiescent vessels.
In normally dividing cells entering into the quiescent state there is an upregulation of CDK inhibitors, which act to block the kinase activity of CDKs effectively blocking cell proliferation [ 67, 68, 69, 70, 71].
Sensibilities quiescent then are more vocal now.
