The S100 protein family is involved in cancer cell invasion and metastasis, but its prognostic value in non-small-cell lung cancer (NSCLC) has not been elucidated. In the present study we investigated the prognostic role of mRNA expression of each individual S100 in NSCLC patients through the Kaplan-Meier plotter (KM plotter) database. Expression of 14 members of the S100 family correlated with...

An S100 binding protein from skeletal muscle, R95 000, has been purified, identified as glycogen phosphorylase, and shown to be regulated in vitro by the S100 alpha isoform. When a soluble skeletal muscle fraction was subjected to a standard purification procedure for glycogen phosphorylase, R95 000 copurified with the 95 000 molecular weight glycogen phosphorylase protein standard on SDS-polya...

The bovine teat canal provides the first-line of defence against pathogenic bacteria infecting the mammary gland, yet the protein composition and host-defence functionality of the teat canal lining (TCL) are not well characterised. In this study, TCL collected from six healthy lactating dairy cows was subjected to two-dimensional electrophoresis (2-DE) and mass spectrometry. The abundance and l...

BACKGROUND Improved, noninvasive biomarkers are needed to accurately detect lupus nephritis (LN) activity. The purpose of this study was to evaluate five S100 proteins (S100A4, S100A6, S100A8/9, and S100A12) in both serum and urine as potential biomarkers of global and renal system-specific disease activity in childhood-onset systemic lupus erythematosus (cSLE). METHODS In this multicenter st...

A theory is presented according to which the neuronal membrane and synapses are influenced by membrane-bound S100 protein and a membrane-associated network of actin-like, 20-A-diameter, coiled filaments and the competition by both proteins for Ca(2+). The discussion is based on observations made with fluorescein- and peroxidase-conjugated antiserum against S100 protein on isolated nerve cells. ...

Background Systemic onset Juvenile Idiopathic Artritis (sJIA), also known as Still’s disease, is characterized by arthritis with symptoms of systemic inflammation such as spiking fever, rash and serositis. It is considered an autoinflammatory disease with a major role for the innate immune system, reflected by extremely high serum levels of S100 proteins and interleukin (IL)-18. How the number ...

S100 proteins bind to numerous target proteins, as well as other S100 proteins and activate signaling cascades. S100 proteins can be modified by various post-translational modifications, such as phosphorylation, methylation and acetylation. In addition, oxidation is important for modulating their activities. Previous studies have shown that S100A1 interacts with S100A4 in vitro and in vivo. Due...

Juvenile idiopathic arthritis (JIA) is a chronic inflammatory disease which commonly shows a remitting-relapsing course. Monitoring disease activity and adaptation of immune-suppressive therapy is still a challenge in clinical practice. In previous work our group has shown that members of the S100-protein family are reliable biomarkers for monitoring arthritis in JIA patients on medication and ...

Damage-associated molecular pattern (DAMP) molecules have been introduced as important proinflammatory factors of innate immunity. One example known for many years to be expressed in cells of myeloid origin are phagocytic S100 proteins, which mediate inflammatory responses and recruit inflammatory cells to sites of tissue damage. An emerging concept of pattern recognition involves the multiliga...