Intratumoral heterogeneity of receptor tyrosine kinases EGFR and PDGFRA amplification in glioblastoma defines subpopulations with distinct growth factor response [Medical Sciences]

Glioblastoma (GBM) is distinguished by a high degree of intratumoral heterogeneity, which extends to the pattern of expression and amplification of receptor tyrosine kinases (RTKs). Although most GBMs harbor RTK amplifications, clinical trials of [...]

Neutralizing antibodies against the preactive form of respiratory syncytial virus fusion protein offer unique possibilities for clinical intervention [Microbiology]

Human respiratory syncytial virus (hRSV) is the most important viral agent of pediatric respiratory infections worldwide. The only specific treatment available today is a humanized monoclonal antibody (Palivizumab) directed against the F glycoprotein, [...]



Forkhead box N4 (Foxn4) activates Dll4-Notch signaling to suppress photoreceptor cell fates of early retinal progenitors [Neuroscience]

The generation of diverse neuronal types and subtypes from multipotent progenitors during development is crucial for assembling functional neural circuits in the adult central nervous system. During mouse retinogenesis, early retinal progenitors give [...]

Mutation of A677 in histone methyltransferase EZH2 in human B-cell lymphoma promotes hypertrimethylation of histone H3 on lysine 27 (H3K27) [Genetics]

Trimethylation of histone H3 on lysine 27 (H3K27me3) is a repressive posttranslational modification mediated by the histone methyltransferase EZH2. EZH2 is a component of the polycomb repressive complex 2 and is overexpressed in many cancers. In [...]

Small molecule antagonist reveals seizure-induced mediation of neuronal injury by prostaglandin E2 receptor subtype EP2 [Pharmacology]

With interest waning in the use of cyclooxygenase-2 (COX-2) inhibitors for inflammatory disease, prostaglandin receptors provide alternative targets for the treatment of COX-2–mediated pathological conditions in both the periphery and the central [...]



Defective transcription initiation causes postnatal growth failure in a mouse model of nucleotide excision repair (NER) progeria [Genetics]

Nucleotide excision repair (NER) defects are associated with cancer, developmental disorders and neurodegeneration. However, with the exception of cancer, the links between defects in NER and developmental abnormalities are not well understood. Here, [...]

Profile of Jane I. Guyer [Profiles]

Approximately diagonalizing matrices over C(Y) [Mathematics]

Let X be a compact metric space which is locally absolutely retract and let φ: C(X) → C(Y,Mn) be a unital homomorphism, where Y is a compact metric space with dim Y ≤ 2. It is proved that there exists a sequence of n continuous maps [...]

Quantitative, directional measurement of electric field heterogeneity in the active site of ketosteroid isomerase [Biophysics and Computational Biology]

Understanding the electrostatic forces and features within highly heterogeneous, anisotropic, and chemically complex enzyme active sites and their connection to biological catalysis remains a longstanding challenge, in part due to the paucity of [...]

Identification of residues defining phospholipid flippase substrate specificity of type IV P-type ATPases [Biochemistry]

Type IV P-type ATPases (P4-ATPases) catalyze translocation of phospholipid across a membrane to establish an asymmetric bilayer structure with phosphatidylserine (PS) and phosphatidylethanolamine (PE) restricted to the cytosolic leaflet. The mechanism [...]