Bacterial outer membrane vesicles: Little membrane blebs with big vaccine potential

Author: Madeline Barron

Editors: Genesis Rodriguez, Alyse Krausz, and Emily Glass

Bacteria are bubbly organisms—literally. As they go about the business of living, many bacteria pinch off little blebs of their outer membrane to form outer membrane vesicles, or OMVs. OMVs are tiny orbs (about 4,000 times smaller than the width of a human hair) that pack a big functional punch. They contain proteins that scavenge nutrients for bacteria to eat, serve as “decoys” that bind up antibiotics and protect bacteria from certain death, and deliver compounds to host cells that cause disease and trigger an immune response. To this end, scientists have sought to exploit the immune-stimulating power of OMVs to generate vaccines that help protect people from bacterial infections. Thus, OMVs may be small, but they could be a mighty weapon to help us keep bacterial pathogens at bay.

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Epigenetics: An Unconventional Take on Cancer

Written By: Christine Lu

Edited By: Christina Del Greco, Peijin Han, and Emily Glass

When you think about cancer, what pops into mind? Likely pain, disease, death, or even a family member who has been affected by cancer. In terms of the cause of cancer, we most likely think of genetic mutations. Very few of us will think about epigenetics. Yet, this does not diminish the fact that epigenetics takes on an equally important role in cancer progression. To understand the role of epigenetics in cancer, we must first appreciate what epigenetics is.

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