Jun, an Oncological Foe or Friend?

Jun/JUN is a basic leucine zipper (bZIP) protein and a prototypic member of the activator protein-1 (AP-1) family of transcription factors that can act as homo- or heterodimers, interact with DNA elements and co-factors, and regulate gene transcription. Jun is expressed by both immune and inflammatory cells. Jun is traditionally seen as an oncoprotein that regulates processes involved in transformation and oncogenesis in human tumours.

Outcomes following deep hypothermic circulatory arrest versus antegrade cerebral perfusion during aortic arch reconstruction.

Objective: The optimal method for cerebral protection during aortic arch reconstruction in neonates and infants is unknown. We compare the outcomes of deep hypothermic circulatory arrest and selective antegrade cerebral perfusion strategies in neonatal and infant cardiac surgery.

Methods: We retrospectively identified all patients aged less than 1 year who underwent aortic arch reconstruction from 2012 to 2023.

Interplay between CD28 and PD-1 in T cell immunotherapy.

Immune checkpoint therapy targeting the PD-1/PD-L1 axis has revolutionised the treatment of solid tumors. However, T cell exhaustion underpins resistance to current anti-PD-1 therapies, resulting in lower response rates in cancer patients. CD28 is a T cell costimulatory receptor that can influence the PD-1 signalling pathway (and vice versa).

Cardiac dysfunction and altered gene expression in acid ceramidase-deficient mice.

Farber disease (FD) is an ultrarare, autosomal-recessive, lysosomal storage disorder attributed to gene mutations. FD is characterized by acid ceramidase (ACDase) deficiency and the accumulation of ceramide in various tissues. Classical FD patients typically manifest symptoms including lipogranulomatosis, respiratory complications, and neurological deficits, often leading to mortality during infancy.

Microvascular Free Flap Practice Management and Career Development.

Microvascular free flap surgery has become the gold standard for head and neck reconstruction. There is significant variability in the technical aspects of this type of surgery, but commonalities can be found regarding general workflow and practice setup. This text will highlight several strategies to help the reconstructive head and neck surgeon improve efficiency, outcomes, and surgeon wellness.