Differential DNA methylation in the benign and cancerous prostate tissue of African American and European American men.

Background: African American (AA) men are at increased risk of prostate cancer (PCa) compared to men of European ancestry (EA). Biological mechanisms, including epigenetics, likely contribute to this disparity, but prior studies have been limited by sample size, candidate gene approaches, or lack of epigenome-wide DNA methylation (DNAm) data.

Methods: To improve our understanding of these mechanisms, we compared DNAm features distinguishing tumor and paired histologically benign tissue from 76 AA and 75 EA PCa patients.

Structures of synaptic vesicle protein 2A and 2B bound to anticonvulsants.

Epilepsy is a common neurological disorder characterized by abnormal activity of neuronal networks, leading to seizures. The racetam class of anti-seizure medications bind specifically to a membrane protein found in the synaptic vesicles of neurons called synaptic vesicle protein 2 (SV2) A (SV2A). SV2A belongs to an orphan subfamily of the solute carrier 22 organic ion transporter family that also includes SV2B and SV2C.

pH-Activatable Ruthenium(II) Fluorescein Salphen Schiff Base Photosensitizers for Theranostic Applications.

Ruthenium(II) polypyridyl complexes exhibit a lack of selectivity toward cancer tissues despite extensive studies as photosensitizers for photodynamic therapy (PDT). Here, we report pH-activatable Ru photosensitizers for molecularly targeted PDT by exploiting the higher acidity of tumoral tissue. The fluorescein moiety, well known for its high pH sensitivity, was connected to a Ru center to yield novel photosensitizers for pH-sensitive O photogeneration.

The Impact of Inherited Genetic Variation on DNA Methylation in Prostate Cancer and Benign Tissues of African American and European American Men.

Background: American men of African ancestry (AA) have higher prostate cancer incidence and mortality rates compared with American men of European ancestry (EA). Differences in genetic susceptibility mechanisms may contribute to this disparity.

Methods: To gain insights into the regulatory mechanisms of prostate cancer susceptibility variants, we tested the association between SNPs and DNA methylation (DNAm) at nearby CpG sites across the genome in benign and cancer prostate tissue from 74 AA and 74 EA men.