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Cell signaling pathways can be generally categorized into groups based on area of biology. Here, you can explore all available pathways, including those that fall under a variety of areas of biology—from angiogenesis and apoptosis to bone biology, metabolism, transcription factors, and others.
AKT is a serine/threonine kinase that is involved in mediating various biological responses, such as inhibition of apoptosis.
The angiopoietins are a new family of growth factor ligands that bind to TIE2/TEK RTK (Receptor Tyrosine Kinase).
Antigen processing and presentation are the processes that result in association of proteins with major histocompatibility complex (MHC) molecules for recognition by a T-cell.
Certain cells have unique sensors, termed death receptors (DRs), which detect the presence of extracellular death signals and rapidly ignite the cell's intrinsic apoptosis machinery.
In immune responses, APRIL acts as a co-stimulator for B-cell and T-cell proliferation and supports class switch.
In immune responses, APRIL acts as a co-stimulator for B-cell and T-cell proliferation and supports class switch.
The B-cell receptor (BCR) complex usually consists of an antigen-binding subunit that is composed of two Ig heavy chains, two Ig light chains, and a signaling subunit.
Bone morphogenetic proteins (BMPs) are a large subclass of the transforming growth factor-beta (TGF-beta) superfamily.
The immune system attempts to constrain tumor growth, but sometimes tumor cells might escape or attenuate this immune pressure.
C-C motif chemokine receptor type 5 (CCR5) is a member of the chemokine receptor subclass of the G protein–coupled receptor (GPCR) superfamily.
Each mature T-cell generally retains expression of the co-receptor molecule (CD4 or CD8) that has a major histocompatibility complex (MHC)-binding property that matches that of its T-cell receptor (TCR).
Apoptosis is a naturally occurring process by which a cell is directed to programmed cell death.
The cytotoxic T lymphocytes (CTLs), also known as killer T-cells, are produced during cell-mediated immunity designed to remove body cells displaying a foreign epitope.
The co-stimulatory CTLA4 pathway attenuates or down-regulates T-cell activation. CTLA4 is designed to remove body cells displaying a foreign epitope.
Cytokines have been classified on the basis of their biological responses into pro- or anti-inflammatory cytokines, depending on their effects on immunocytes.
The ErbB family of transmembrane receptor tyrosine kinases (RTKs) plays an important role during the growth and development of organs.
FAS (also called APO1 or CD95) is a death domain–containing member of the tumor necrosis factor (TNF) receptor superfamily.
One of the most well characterized modulators of angiogenesis is the heparin-binding fibroblast growth factor (FGF).
Adhesion and diapedesis of granulocytes have mostly been analyzed in context to non-lymphoid endothelium.
Granzyme A (GzmA) activates a caspase-independent cell death pathway with morphological features of apoptosis.
GSK3 is a ubiquitously expressed, highly conserved serine/threonine protein kinase found in all eukaryotes.
Hematopoietic stem cells are classified into long-term, short-term and multipotent progenitors, based on the extent of their self-renewal abilities.
Pluripotent stem cells are capable of forming virtually all of the possible tissue types found in human beings.
IL-2 is a cytokine that stimulates the growth, proliferation, and differentiation of T-cells, B-cells, NK cells, and other immune cells.
IL-2 is a cytokine that stimulates the growth, proliferation, and differentiation of T-cells, B-cells, NK cells, and other immune cells.
IL-6 is a pleiotropic cytokine that affects the immune system and many physiological events in various organs.
IL-10 is a pleiotropic cytokine with important immunoregulatory functions and whose activities influence many immune cell types.
IL-22 is a member of the IL-10 family of cytokines and exerts multiple effects on the immune system.
Interferons are pleiotropic cytokines best known for their ability to induce cellular resistance to viral infection.
The JAK/STAT pathway is a signaling cascade whose evolutionarily conserved roles include cell proliferation and hematopoiesis.
Mitogen-activated protein kinases (MAPKs) belong to a large family of serine/threonine protein kinases that are conserved in organisms as diverse as yeast and humans.
NANOG is a transcription factor transcribed in pluripotent stem cells and is down-regulated upon cell differentiation.
Tumor protein p53 is a nuclear transcription factor that regulates the expression of a wide variety of genes involved in apoptosis, growth arrest, or senescence in response to genotoxic or cellular stress.
Rheumatoid arthritis (RA) is a chronic symmetric polyarticular joint disease that primarily affects the small joints of the hands and feet.
The phosphoinositide 3-kinases (PI3Ks) regulate numerous biological processes, including cell growth, differentiation, survival, proliferation, migration, and metabolism.
RANKL and its receptor RANK are key regulators of bone remodeling, and are essential for the development and activation of osteoclasts.
RANKL induces the differentiation of osteoclast precursor cells and stimulates the resorption function and survival of mature osteoclasts.
Members of the transforming growth factor (TGF)-beta family play an important role in the development, homeostasis, and repair of most tissues.
T-helper cells of type 1 (TH1) and type 2 (TH2) are derived from T-helper cells and provide help to cells of both the innate and adaptive immune systems.
Tumor necrosis factor (TNF) is a multifunctional pro-inflammatory cytokine with effects on lipid metabolism, coagulation, insulin resistance, and endothelial function.
The tumor necrosis factor (TNF) superfamily consists of 19 members that signal through 29 receptors that are members of the TNF receptor (TNFR) superfamily.
Transport of plasma proteins and solutes across the endothelium involves two different routes: transcellular and paracellular junctions.
The liver is a major site for the formation and metastasis of tumors.
TWEAK is a cell surface-associated protein belonging to the tumor necrosis factor (TNF) superfamily and has multiple biological activities.
Vascular endothelial growth factor (VEGF) is a highly-conserved genetic pathway that has evolved from simple to complex systems.
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