Autophagy mediated by ROS-AKT-FoxO pathway is required for intestinal regeneration in echinoderms.

Autophagy is essential for maintaining material balance and energy circulation and plays a critical role as a regulatory mechanism in tissue regeneration. However, current studies primarily describe this phenotype, with limited exploration of its molecular mechanisms. In this study, we provided the first evidence that autophagy is required for intestinal regeneration in Apostichopus japonicus and identified a previously unrecognized regulatory mechanism involved in this process.

TMT-Based Quantitative Proteomic Analysis Reveals the Key Role of Cell Proliferation and Apoptosis in Intestine Regeneration of .

Sea cucumbers are widely known for their powerful regenerative abilities, which allow them to regenerate a complete digestive tract within a relatively short time following injury or autotomy. Recently, even though the histological changes and cellular events in the processes of intestinal regeneration have been extensively studied, the molecular machinery behind this faculty remains unclear. In this study, tandem mass tag (TMT)-based quantitation was utilized to investigate protein abundance changes during the process of intestine regeneration.

CircRNA254 functions as the miR-375 sponge to inhibit coelomocyte apoptosis via targeting BAG2 in V. splendidus-challenged Apostichopus japonicus.

Circular RNAs (circRNAs) function as immune regulators in many biological processes in mammals, while their function and underlying mechanisms in invertebrates are largely unexplored. In this study, the competing endogenous RNA (ceRNA) mechanism of circRNA that sponges miR-375 and thus regulates AjBAG2-mediated coelomocyte apoptosis was evaluated in Apostichopus japonicus. The results showed that circRNA254 (circ254) was significantly down-regulated in the intestines and coelomocytes after Vibrio splendidus challenge or Lipopolysaccharide exposure, which matched the RNA-seq results in A.

Mesentery AjFGF4-AjFGFR2-ERK pathway modulates intestinal regeneration via targeting cell cycle in echinoderms.

Objectives: The purpose of the study aims to understand the regeneration process and its cytology mechanism in economic echinoderms.

Materials And Methods: The intestine regeneration process of Apostichopus japonicus was investigated by immunohistochemistry and the cell proliferation was detected by immunofluorescence and flow cytometry. Fibroblast growth factor 4 of A.

Dynamic distribution of formalin-inactivated Edwardsiella tarda in flounder (Paralichthys olivaceus) post intraperitoneal vaccination.

In order to investigate the dynamic distribution of antigen in different tissues post vaccination, an absolute real-time quantitative PCR was employed to detect the amount of antigen in flounder (Paralichthys olivaceus) post intraperitoneal (i.p.) injection with three concentrations (10, 10, 10 CFU ml) of formalin-inactivated Edwardsiella tarda bacterin.

Dynamic distribution of formalin-inactivated Edwardsiella tarda in olive flounder (Paralichthys olivaceus) post intramuscular injection.

Intramuscular (i.m.) injection is one of the common delivery methods of vaccination in aquaculture, which could induce an ideal immune protection to fish.