Such a biphasic switch could reinforce either the non-transformed or the transformed state at a given point in time.
Although the catalytic activity of DOT1L has been shown to be required for leukemic transformation and maintenance of the transformed state by MLL and CALM fusion proteins in in vitro models, it is possible that DOT1L collaborates with other euchromatic modifiers such as Gcn5 to establish and maintain the altered gene expression levels in human leukemias.
However, several observations suggest that IGF-IR may be required for maintaining the transformed state: IGF-IR is required for the transformation of fibroblasts by SV40 [ 57], it is able to improve the efficiency of EGFR signaling in tamoxifen-resistant cells [ 52], and its inhibition enhances the inhibitory effects of gefitinib in breast cancer cells [ 58].
It is unclear whether an increase in STAT3 mRNA is important for transformation, but it is likely to contribute to the transformed state and the maintenance of STAT3 protein levels.
This property correlates with the transformed state of the cell [ 1, 2] as transformation of immortalized cells which were not tumorigenic in vivo with oncogenes such as Ras, Sos, v-erb and c-myc rendered them susceptible to reovirus oncolysis [ 3- 5].
This paper, the first in the three-part series, develops a linear transformation to project the dynamics of a CSTR reaction system onto a transformed state space.
The proposed transformation is invertible, and leads to a "sparse" system representation in the transformed state space – a property crucial for the methods developed to compute reachable sets of CSTR reaction systems.
The proposed indirect-bounding method addresses the overestimation problem by using the isomorphic transformation, developed in Tulsyan and Barton (2017a), to map the system into a transformed state space, where comparison-based methods yield tight bounds.
Sleep – as a metaphor for a heightened or transformed state of consciousness, or a route to the subconscious world of dreams, fantasy and imagination – is also something that has inspired composers to some of their most powerfully intoxicating works.
Also of significance was the statue positioned in the center of the cache a half-human, half-vulture figure that probably represented a shaman or priest in a transformed state.
Remarks 4.1 (i) The observer dynamics consists of a copy of that of the system model in the transformed state representation x ¯ ( t ) = [ I ¯ ( t ) E ¯ ( t ) S ¯ ( t ) ] T with an additional term proportional to the observation error y ¯ ˆ ( t ) − y ( t ) = C x ¯ ˆ ( t ) − y ( t ).
