Precursor cell
Encyclopedia
In cytology
, a precursor cell, also called a blast cell or simply blast, is a type of partially differentiated, usually unipotent cell
that has lost most or all of the stem cell
multipotency.
Usually precursor cells are cells capable of differentiating into one or two closely related final forms.
Sometimes precursor cell is used as an alternative term for multipotent stem cells.
A blastoma
is a type of cancer created by malignancies of precursor cells.
In embryology
, precursor cells are group of cells that differentiate later into one organ.
Cell biology
Cell biology is a scientific discipline that studies cells – their physiological properties, their structure, the organelles they contain, interactions with their environment, their life cycle, division and death. This is done both on a microscopic and molecular level...
, a precursor cell, also called a blast cell or simply blast, is a type of partially differentiated, usually unipotent cell
that has lost most or all of the stem cell
Stem cell
This article is about the cell type. For the medical therapy, see Stem Cell TreatmentsStem cells are biological cells found in all multicellular organisms, that can divide and differentiate into diverse specialized cell types and can self-renew to produce more stem cells...
multipotency.
Usually precursor cells are cells capable of differentiating into one or two closely related final forms.
Sometimes precursor cell is used as an alternative term for multipotent stem cells.
A blastoma
Blastoma
A blastoma is a type of cancer that is caused by malignancies in precursor cells, often called blasts. Examples are nephroblastoma, medulloblastoma and retinoblastoma The suffix blastoma is used to imply a tumor of primitive, incompletely differentiated A blastoma is a type of cancer that is caused...
is a type of cancer created by malignancies of precursor cells.
In embryology
Embryology
Embryology is a science which is about the development of an embryo from the fertilization of the ovum to the fetus stage...
, precursor cells are group of cells that differentiate later into one organ.
Cytological types
- Oligodendrocyte precursor cellOligodendrocyte precursor cellOligodendrocyte precursor cells in nervous tissue cells precede oligodendrocytes, and may also be able to generate neurons and astrocytes. The principal function of oligodendrocytes is to provide support to axons and to produce the Myelin sheath, which insulates and lowers the effective...
- MyeloblastMyeloblastThe myeloblast is a unipotent stem cell, which will differentiate into one of the actors of the Granulocyte series.- Origin :These cells descend from the primitive reticulum cells, which are found in the stroma of the marrow. There is also an intermediate phase between the myeloblast and these...
- ThymocyteThymocyteThymocytes are hematopoietic progenitor cells present in the thymus. Thymopoiesis is the process in the thymus by which thymocytes differentiate into mature T lymphocytes. The primary function of thymocytes is the generation of T lymphocytes . The thymus provides an inductive environment, which...
- MeiocyteMeiocyteA meiocyte is a cell which is an immediate precursor to a gamete. It is so named because meiosis occurs in the cell. A meiocyte goes through meiosis to form a tetrad. This tetrad consists of 4 genetically different cells that have half the genetic information of the meiocyte from which it came....
- MegakaryoblastMegakaryoblastA megakaryoblast is a precursor cell to a promegakaryocyte, which in turn becomes a megakaryocyte during haematopoiesis. It is the beginning of the thrombocytic series....
- PromegakaryocytePromegakaryocyteA promegakaryocyte is a precursor cell for a megakaryocyte, arising from a megakaryoblast.The developmental stages of the megakaryocyte are:CFU-Me → megakaryoblast → promegakaryocyte → megakaryocyte.-External links:* *...
- MelanoblastMelanoblastA melanoblast is a precursor cell of a melanocyte.These cells migrate from the trunk neural crest cells dorsolaterally between the ectoderm and dorsal surface of the somites.-External links:*...
- LymphoblastLymphoblastLymphoblasts are immature cells which typically differentiate to form mature lymphocytes. Normally lymphoblasts are found in the bone marrow, but in acute lymphoblastic leukemia , lymphoblasts proliferate uncontrollably and are found in large numbers in the peripheral blood.The size is between 10...
- Bone marrowBone marrowBone marrow is the flexible tissue found in the interior of bones. In humans, bone marrow in large bones produces new blood cells. On average, bone marrow constitutes 4% of the total body mass of humans; in adults weighing 65 kg , bone marrow accounts for approximately 2.6 kg...
precursor cells - NormoblastNormoblastAn erythroblast is a type of red blood cell which still retains a cell nucleus. It is the immediate precursor of a normal erythrocyte.-Nomenclature:...
- AngioblastAngioblastBlood vessels first make their appearance in several scattered vascular areas that are developed simultaneously between the endoderm and the mesoderm of the yolk-sac, i. e., outside the body of the embryo...
(endothelial precursor cells) - MyeloidMyeloidThe term myeloid suggests an origin in the bone marrow or spinal cord, or a resemblance to the marrow or spinal cord.In hematopoiesis, the term "myeloid cell" is used to describe any leukocyte that is not a lymphocyte...
precursor cells
External links
- NIF Search - Precursor Cell via the Neuroscience Information FrameworkNeuroscience Information FrameworkThe Neuroscience Information Framework is a repository of global neuroscience web resources, including experimental, clinical, and translational neuroscience databases, knowledge bases, atlases, and genetic/genomic resources.-Description:...