As this system will likely continue to be challenging to interrogate in vitro, progress will be greatly aided by application of high-resolution and real-time cell imaging.
Dissociated mouse neurons cultured in vitro progress through several stages of maturation that parallel their in vivo development (Dotti et al., 1988; Palmer et al., 1997; Arimura and Kaibuchi, 2007).
Since the process of myogenesis has been extensively studied both in vivo and in vitro, substantial progress has been made in understanding the molecular and cellular mechanisms.
These results indicate that as human fibroblasts are passaged in vitro and progress toward replicative senescence, SIRT1 protein expression is significantly downregulated.
Optimize Safety and Biocompatibility: The safety profile of the biosensors will be characterized, beginning first with cytotoxicity assays and biocompatibility in vitro before progressing to in vivo animal studies to determine systemic biocompatibility, in terms of toxicity and interference with normal tissue and interstitial fluid function.
To make rapid progress in the design of nano-platforms for drug delivery and toward their use in the clinic, basic and mechanistic studies must first be tested in vitro and then progress to in vivo studies in animal models, incorporating an understanding of body functioning.
However, the rare nature of CSCs coupled with the methodological challenges associated with isolating, maintaining, and expanding them in vitro has slowed progress.
Objective: The objective of this study was to investigate the prognostic significance of initially low serum early human chorionic gonadotropin levels in in vitro fertilization pregnancies that progress to an intrauterine gestational sac.
While this in vitro work was in progress, an article by Wang and co-workers was published (13) in which in vitro replication of the G[8,5-Me]T lesion by yeast DNA polymerase η was reported.
In our model of HPV16-mediated transformation, we did not find a consistent reduction of Smad3 protein levels as the cells progress in vitro.
While studies of aggressive breast cancer cells in vitro have allowed significant progress in understanding adhesion and migration through matrix, matrix degradation (including mechanisms of matrix metalloproteinases) and in vitro invasiveness, subsequent translational applications have proved limited.
