Global Health Education Revamped: Implementation of a Cross-Cultural Virtual Elective Through Continuous Improvement Methods.

Introduction: Virtual platforms can increase access to global health (GH) education and cross-cultural communication. The Cleveland-Cusco Connection (CCC) is a virtual GH elective between medical schools in the USA and Peru. This elective was held annually from 2020 to 2023, with monthly virtual sessions held in English and Spanish to facilitate bidirectional learning about healthcare systems, culture, and barriers to care in both nations.

14-3-3 signal adaptor and scaffold proteins mediate GPCR trafficking.

Receptor trafficking is pivotal for the temporal and spatial control of GPCR signaling and is regulated by multiple cellular proteins. We provide evidence that GPCRs interact with 14-3-3 signal adaptor/scaffold proteins and that this interaction regulates receptor trafficking in two ways. We found GPCR/14-3-3 interaction signals can be agonist-induced or agonist-inhibited.

G-protein-coupled receptors mediate 14-3-3 signal transduction.

G-protein-coupled receptor (GPCR)-interacting proteins likely participate in regulating GPCR signaling by eliciting specific signal transduction cascades, inducing cross-talk with other pathways, and fine tuning the signal. However, except for G-proteins and β-arrestins, other GPCR-interacting proteins are poorly characterized. 14-3-3 proteins are signal adaptors, and their participation in GPCR signaling is not well understood or recognized.

ERK and β-arrestin interaction: a converging point of signaling pathways for multiple types of cell surface receptors.

β-Arrestin, a signal adaptor protein, mediates intracellular signal transductions through protein-protein interactions by bringing two or more proteins in proximity. Extracellular signal-regulated kinase (ERK), a protein kinase in the family of mitogen-activated protein kinases (MAPKs), is involved in various receptor signal pathways. Interaction of ERK with β-arrestin or formation of ERK/β-arrestin signal complex occurs in response to activation of a variety of cell surface receptors.