HSPD1 and mucositis: Similar results were found for other probiotic strains in 5-FU-induced mucositis (Yeung et al., 2015; de Jesus et al., 2019) and for recombinant L. delbrueckii (pExu:hsp65) administered in a 5-FU-induced mucositis model in mice, demonstrating the potential of this therapeutic approach toward this parameter (Barroso et al., 2021).