Direct oral anticoagulants in deep vein thrombosis associated with inferior vena cava agenesis: A report of three cases and a systematic review.

Background: Inferior vena cava agenesis (IVCA) is a rare vascular abnormality characterised by the absence of one or more segments of the inferior vena cava and represents an underestimated cause of deep vein thrombosis (DVT). Given the very low prevalence of this condition and the lack of clinical trials, there is no consensus about the optimal anticoagulation strategy in IVCA-associated DVT.

Objectives: To investigate efficacy and safety of direct oral anticoagulants (DOACs) in IVCA-associated DVT.

Immune escape of multiple myeloma cells results from low miR29b and the ensuing epigenetic silencing of proteasome genes.

Background: Activation of CD28 on multiple myeloma (MM) plasma cells, by binding to CD80 and CD86 on dendritic cells, decreases proteasome subunit expression in the tumor cells and thereby helps them evade being killed by CD8 T cells. Understanding how CD28 activation leads to proteasome subunit downregulation is needed to design new MM therapies.

Methods: This study investigates the molecular pathway downstream of CD28 activation, using an in vitro model consisting of myeloma cell lines stimulated with anti-CD28-coated beads.

Endothelial cells in tumor microenvironment: insights and perspectives.

The tumor microenvironment is a highly complex and dynamic mixture of cell types, including tumor, immune and endothelial cells (ECs), soluble factors (cytokines, chemokines, and growth factors), blood vessels and extracellular matrix. Within this complex network, ECs are not only relevant for controlling blood fluidity and permeability, and orchestrating tumor angiogenesis but also for regulating the antitumor immune response. Lining the luminal side of vessels, ECs check the passage of molecules into the tumor compartment, regulate cellular transmigration, and interact with both circulating pathogens and innate and adaptive immune cells.

Cutaneous polyarteritis nodosa and pulmonary arterial hypertension: An unexpected liaison. A case report.

Background: Cutaneous polyarteritis nodosa (cPAN) is a form of medium-sized vessel necrotizing vasculitis. It is a rare, skin-limited variant of polyarteritis nodosa, characterized by dermal and subcutaneous tissue involvement. The most common findings in cPAN include digital gangrene, livedo reticularis, and tender subcutaneous nodules.

Adipose failure through adipocyte overload and autoimmunity.

Metabolic syndrome poses a great worldwide threat to the health of the patients. Increased visceral adiposity is recognized as the main determinant of the detrimental clinical effects of insulin resistance. Inflammation and immune system activation in the adipose tissue (AT) have a central role in the pathophysiology of metabolic syndrome, but the mechanisms linking increased adiposity to immunity in the AT remain in part elusive.