Polyploid tubular cells initiate a TGF-β1 controlled loop that sustains polyploidization and fibrosis after acute kidney injury
Letizia De Chiara, Roberto Semeraro, Benedetta Mazzinghi, Samuela Landini, Alice Molli, Giulia Antonelli, Maria Lucia Angelotti, Maria Elena Melica, Laura Maggi, Carolina Conte, Anna Julie Peired, Luigi Cirillo, Valentina Raglianti, Alberto Magi, Francesco Annunziato, Paola Romagnani, Elena Lazzeri
Abstract
Polyploidization in tubular epithelial cells has been neglected until recently. Here, we showed that polyploidization is a self-sustained mechanism that plays an important role during chronic kidney disease development, proving the existence of a cross talk between infiltrating cells and polyploid tubular cells. This study contributes to the ongoing revision of kidney adaptation to injury, posing polyploid tubular cells at the center of the process.