Matthew Tyska

The research team studying undiagnosed congenital diarrheas includes, from left, Matt Tyska, PhD, James Goldenring, MD, PhD, Joseph Roland, PhD, Sari Acra, MD, MPH, and Hernan Correa, MD.

Team set to study undiagnosed congenital diarrhea in infants

Researchers at four institutions, including Vanderbilt, have been awarded a five-year, $9.4 million federal grant to tackle undiagnosed congenital diarrheas caused by a single gene mutation.

Microvilli in motion

Live cell imaging studies have revealed that microvilli — finger-like protrusions on the surface of epithelial cells — move and collide as they form the brush border.

Adhesion protein optimizes border

Matthew Tyska and colleagues have found that an adhesion protein plays a key role in building the intestinal brush border that is essential for absorbing nutrients.

How microvilli form

A protein called IRTKS helps build the microvilli that form the border of cells in the intestines, explaining why the protein is a frequent target of gut pathogens.

Cell skeleton and the brush border

Vanderbilt researchers have discovered a role for microtubules — part of the cellular “skeleton” — in organizing the unique sidedness of the epithelial cells that line organs like the intestines.

Motoring to the tips of the brush border

New findings implicate a motor protein in the assembly of the brush border in the intestines and kidneys – a specialized surface that is critical for healthy organ function.