📄 Endothelial Cells Stably Infected with Recombinant Kaposi’s Sarcoma‑Associated Herpesvirus Display Distinct Viscoelastic and Morphological Properties

Dr Majahonkhe Shabangu and coauthors share a study that explores how Kaposi’s sarcoma–associated herpesvirus (KSHV) reshapes the mechanical and morphological properties of endothelial cells.

What did the study show?

• Endothelial cells stably infected with recombinant KSHV become more deformable while simultaneously exhibiting increased cytosolic viscosity.
• Infection drives a pronounced spindle-shaped morphology, closely mirroring the hallmark cellular phenotype seen in Kaposi’s sarcoma lesions.
• Using mitochondria‑tracking microrheology and image‑based morphometrics, the study quantitatively links viral infection to changes in cell viscoelasticity and shape.

Why this matters

These measurable biomechanical changes could serve as novel diagnostic markers and point toward mechanically informed therapeutic strategies, especially valuable in settings where traditional histopathology is resource‑intensive or unavailable.

The work highlights how combining biophysics, virology, and cell biology can open new avenues for understanding virus‑driven cancers—and potentially improve early detection and intervention.