Maspin is not required for embryonic development or tumour suppression

Maspin is not required for embryonic development or tumour suppression

Maspin (SERPINB5) is accepted as an important tumour suppressor lost in many cancers. Consistent with a critical role in development or differentiation maspin knockout mice die during early embryogenesis, yet clinical data conflict on the prognostic utility of maspin expression. Here to reconcile these findings we made conditional knockout mice. Surprisingly, maspin knockout embryos develop int...

Thymosin β4 is not required for embryonic viability or vascular development.

RATIONALE Rossdeutsch et al describe a requirement for thymosin β4 (Tβ4) in vascular development. Impaired mural cell migration, differentiation, partial embryonic lethality, and hemorrhaging were observed after analysis of 2 lines of mice, one of which was germline null for Tβ4 and another in which Tβ4 was knocked down by endothelial-specific expression of Tβ4 short hairpin RNA. These data are...

is evaluation of hepatitis a immunity required or not?

Tmem26 Is Dynamically Expressed during Palate and Limb Development but Is Not Required for Embryonic Survival

The Tmem26 gene encodes a novel protein that we have previously shown to be regulated by hedgehog signalling in the mouse limb. We now report that Tmem26 expression is spatially and temporally restricted in other regions of the mouse embryo, most notably the facial primordia. In particular, Tmem26 expression in the mesenchyme of the maxillary and nasal prominences is coincident with fusion of t...

Shh expression is required for embryonic hair follicle but not mammary gland development.

The embryonic mammary gland and hair follicle are both derived from the ventral ectoderm, and their development depends on a number of common fundamental developmental pathways. While the Hedgehog (Hh) signaling pathway is required for hair follicle morphogenesis, the role of this pathway during embryonic mammary gland development remains undetermined. We demonstrate here that, unlike the hair ...