Overall, the in vitro synthesis of longer TASK-1 fragments typically favoured a native type II topology of TM1 at the expense of the inverted form (cf. Figure 6).
Our in vitro data suggested that TASK-1-TM1 han an increased tendency to assume an incorrect transmembrane topology when short fragments of the polypeptide were synthesized, whereas the native topology of TM1 was generally favoured as longer fragments of the protein were made.
The main tools under this task are in vitro toxicity testing, in silico molecular modeling, and in vivo (systemic) measurements documentation.
Preparing a homogeneous FG hydrogel in vitro is a technically challenging task.
To reconstruct all human tissues, in vitro would be a formidable task today, and toxicological testing on all separate tissue models would put even the direst estimates of animal use in a temporally and economically favorable light.
As DNA-binding transcription factors, Hox display notoriously low binding specificity in vitro, yet they accomplish the task of selecting specific target genes to control segment morphology (Berger et al., 2008; Mann et al., 2009; Noyes et al., 2008).
In order to appreciate the task which in vitro screening of antifibrotics is up against, we will first review the fibrotic process by categorizing it into events that are upstream of collagen biosynthesis and the actual biosynthetic and depositional cascade of collagen I.
Although scoring accuracy and range of applications of computational docking has improved in the last years, resulting partially from increasing computing power, this method is far from excellence and still cannot be applied to practical tasks without in vitro and in vivo validation.
Already spatiotemporal in vitro tissue modeling is a challenging task.
Moreover, assessing gene essentiality is not a trivial task, given that in vitro results do not always correlate with gene essentiality determined in vivo[ 43].
