Human amniotic mesenchymal stem cell-islet organoids enhance the efficiency of islet engraftment in a mouse diabetes model.

Aims: Despite islet transplantation has proved a great potential to become the standard therapy for type 1 diabetes mellitus (T1DM), this approach remains limited by ischemia, hypoxia, and poor revascularization in early post-transplant period as well as inflammation and life-long host immune rejection. Here, we investigate the potential and mechanism of human amniotic mesenchymal stem cells (hAMSCs)-islet organoid to improve the efficiency of islet engraftment in immunocompetent T1DM mice.

Main Methods: We generated the hAMSC-islet organoid structure through culturing the mixture of hAMSCs and islets on 3-dimensional-agarose microwells.

Detrimental Effect of the Characteristic-Human-Capital-Inputs-Based Horizontal Pay Dispersion on Team Member Work Role Performance via Employee Benign and Malicious Envy: An Evidence from China.

Purpose: Pay for employee characteristic human capital inputs, which results in part of horizontal pay dispersion (HPD) and is well acknowledged by organizations and employees, has been greatly ignored by scholars. This study proposes "the characteristic-human-capital-inputs-based HPD" and explores what impact it tends to exert on team member work role performance (TMWRP), why, and when. Drawing on social comparison theory, goal-setting theory, and self-regulatory depletion theory, we develop a dual-mediation model elaborating the detrimental effect of this type of HPD on TMWRP from the perspective of employee benign and malicious envy and test it using objective and subjective data of 364 members coming from 65 Chinese ordinary employee teams.

Vitamin K3 Suppresses Pyroptosis in THP-1 Cells through Inhibition of NF-κB and JNK Signaling Pathways.

Vitamin K, a necessary nutritional supplement for human, has been found to exhibit anti-inflammatory activity. In the present study, we investigated the effects of vitamin K family on lipopolysaccharide (LPS) plus nigericin induced pyroptosis and explored the underlying mechanism of its action in THP-1 monocytes. Results showed that vitamin K3 treatment significantly suppressed THP-1 pyroptosis, but not vitamin K1 or K2, as evidenced by increased cell viability, reduced cellular lactate dehydrogenase (LDH) release and improved cell morphology.

Human amniotic mesenchymal stem cells-derived IGFBP-3, DKK-3, and DKK-1 attenuate liver fibrosis through inhibiting hepatic stellate cell activation by blocking Wnt/β-catenin signaling pathway in mice.

Background: Liver fibrosis is an outcome of restoring process in chronic liver injury. Human amniotic mesenchymal stem cells (hAMSCs) derived from amniotic membrane have multilineage differentiation, immunosuppressive, and anti-inflammatory potential which makes them suitable for treating liver fibrosis. This study aimed to explore the effect and mechanism of hAMSCs on liver fibrosis.