Juliana Bortolatto

Across 119 monoclonal germinal centers, B cell affinity rises reliably despite divergent phylogenies. Selection is noisy but persistent; mutability limits exploration. A DMS-based landscape shows saturating fitness and survivorship biases.

The paper investigates how antibodies from an ongoing immune response affect interclonal competition in germinal centers, finding that antibody feedback reduces clones recognizing the same epitopes as circulating antibodies.

This paper develops a method to generate TCR knock-in mice with functional T cells by integrating TCRβ sequences into the Trb locus using AAV and CRISPR/Cas9, overcoming limitations of traditional transgenic models.