Cancer cells selectively load ‘drones’ to keep T cells from infiltrating tumors

Biologist Wei Guo and colleagues elucidate the process of sorting and loading cargo for these biological drones with implications for a more targeted and effective use of checkpoint inhibitor drugs in cancer treatment.

Educating Community Oriented Biologists

Cell biology, plant science, and neurobiology were all areas of study undertaken by students in the SNF Paideia designated course Research in Biological Sciences and its Social Impact. Projects were grounded in scientific inquiry with an added community focus.


The Department of Biology joins in campus-wide efforts to diversify those honored in portraits and rethink how to approach representation through art.

Genomic differences selected through evolution may offer clues as to why COVID-19 outcomes vary widely

A team from the University of Pennsylvania analyzed genomic data from global populations, including thousands of ethnically diverse Africans, to identify genetic variants that may be associated with clinical COVID-19 outcomes.

With plants as a model, studying the ‘complexity and reproducibility’ of developmental biology

In his first year at Penn, biologist Aman Husbands is busy working on projects to illuminate the molecular mechanisms that govern plant development.