The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.

Any series of molecular signals initiated by the binding of an extracellular ligand to a vascular endothelial growth factor receptor (VEGFR) located on the surface of the receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription.

The process whose specific outcome is the progression of a blood vessel over time, from its formation to the mature structure. The blood vessel is the vasculature carrying blood.

Any process that stops, prevents, or reduces the frequency, rate or extent of protein kinase activity.

The process whose specific outcome is the progression of the myeloid and lymphoid derived organ/tissue systems of the blood and other parts of the body over time, from formation to the mature structure. The site of hemopoiesis is variable during development, but occurs primarily in bone marrow or kidney in many adult vertebrates.

The expansion of a B cell population by cell division. Follows B cell activation.

Any process that activates or increases the frequency, rate or extent of T-helper cell differentiation.

Any process that activates or increases the rate or extent of progression through the mitotic cell cycle.

The process in which the anatomical structures of blood vessels are generated and organized. The blood vessel is the vasculature carrying blood.

The process in which the anatomical structures of blood vessels are generated and organized. The blood vessel is the vasculature carrying blood.

A series of molecular signals initiated by the cross-linking of an antigen receptor on a T cell.

The expansion of a hematopoietic stem cell population by cell division. A hematopoietic stem cell is a stem cell from which all cells of the lymphoid and myeloid lineages develop.

Any process that stops, prevents or reduces the frequency, rate or extent of oocyte maturation.

That part of the nuclear content other than the chromosomes or the nucleolus.

The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

A ribonucleoprotein granule located in the cytoplasm.

That part of the nuclear content other than the chromosomes or the nucleolus.

The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

A ribonucleoprotein granule located in the cytoplasm.