{Reference Type}: Journal Article
{Title}: Toll-like Receptor Agonist CBLB502 Protects Against Radiation-induced Intestinal Injury in Mice.
{Author}: Wang Q;Duan J;Hong J;Ding K;Tai F;Zhu J;Fu H;Zheng X;Ge C;
{Journal}: In Vivo
{Volume}: 38
{Issue}: 4
{Year}: 2024 Jul-Aug
{Factor}: 2.406
{DOI}: 10.21873/invivo.13613
{Abstract}: <B>OBJECTIVE: </B>The small intestine is one of the organs most vulnerable to ionizing radiation (IR) damage. However, methods to protect against IR-induced intestinal injury are limited. CBLB502, a Toll-like receptor 5 (TLR5) agonist from Salmonella flagellin, exerts radioprotective effects on various tissues and organs. However, the molecular mechanisms by which CBLB502 protects against IR-induced intestinal injury remain unclear. Thus, this study aimed to elucidate the mechanisms underlying IR-induced intestinal injury and the protective effects of CBLB502 against this condition in mice.<BR><B>METHODS: </B>Mice were administered 0.2 mg/kg CBLB502 before IR at different doses for different time points, and then the survival rate, body weight, hemogram, and histopathology of the mice were analyzed.<BR><B>RESULTS: </B>CBLB502 reduced IR-induced intestinal injury. RNA-seq analysis revealed that different doses and durations of IR induced different regulatory patterns. CBLB502 protected against intestinal injury mainly after IR by reversing the expression of IR-induced genes and regulating immune processes and metabolic pathways.<BR><B>CONCLUSIONS: </B>This study preliminarily describes the regulatory mechanism of IR-induced intestinal injury and the potential molecular protective mechanism of CBLB502, providing a basis for identifying the functional genes and molecular mechanisms that mediate protection against IR-induced injury.