Implementation of a Virtual Cardiology Curriculum to Address the Deficit of Cardiovascular Education in Haiti.

Background: Cardiovascular disease (CVD) is the leading cause of death in low- and middle-income countries such as Haiti. Our team has demonstrated in a pilot study the implementation of a virtual cardiology curriculum to address the deficit of cardiology education in Haiti among medicine residents.

Objectives: The objective of this study was to determine if cardiology education can be delivered nationwide in Haiti via a virtual platform with quantifiable improvement.

Context-restricted PD-(L)1 checkpoint agonism by CTLA4-Ig therapies inhibits T cell activity.

T cell surface CTLA4 sequesters the costimulatory ligands CD80 and CD86 on antigen-presenting cells (APCs) to prevent autoimmunity. Therapeutic immunosuppression by recombinant CTLA4-immunoglobulin (Ig) fusion proteins, including abatacept, is also attributed to CD80/CD86 blockade. Recent studies show that CTLA4-Ig binding to APC surface cis-CD80:PD-L1 complexes can release the inhibitory ligand PD-L1, but whether this contributes to T cell inhibition remains unclear.

The complexity of immune evasion mechanisms throughout the metastatic cascade.

Metastasis, the spread of cancer from a primary site to distant organs, is an important challenge in oncology. This Review explores the complexities of immune escape mechanisms used throughout the metastatic cascade to promote tumor cell dissemination and affect organotropism. Specifically, we focus on adaptive plasticity of disseminated epithelial tumor cells to understand how they undergo phenotypic transitions to survive microenvironmental conditions encountered during metastasis.