|
Organoid
An organoid is a miniaturized and simplified version of an organ produced in vitro in three dimensions that shows realistic micro-anatomy. They are derived from one or a few cells from a tissue, embryonic stem cells or induced pluripotent stem cells, which can self-organize in three-dimensional culture owing to their self-renewal and differentiation capacities. The technique for growing organoids has rapidly improved since the early 2010s, and it was named by '' The Scientist'' as one of the biggest scientific advancements of 2013. Organoids are used by scientists to study disease and treatments in a laboratory. History Attempts to create organs ''in vitro'' started with one of the first dissociation-reaggregation experiments where Henry Van Peters Wilson demonstrated that mechanically dissociated sponge cells can reaggregate and self-organize to generate a whole organism. In the subsequent decades, multiple labs were able to generate different types of organs ''in vitro' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Clevers
Johannes (Hans) Carolus Clevers (born 27 March 1957) is a Dutch molecular geneticist, cell biologist and stem cell researcher. He became the Head of Pharma, Research and Early Development, and a member of the Corporate Executive Committee, of the Swiss healthcare company Roche in 2022. Previously, he headed a research group at the Hubrecht Institute for Developmental Biology and Stem Cell Research and at the ; he remained as an advisor and guest scientist or visiting researcher to both groups. He is also a Professor in Molecular Genetics at the University of Utrecht. Early life and education Hans Clevers was born in Eindhoven, the Netherlands in 1957. He began studying biology at the University of Utrecht in 1975, but also started taking medicine in 1978, in part due to his interest and in part because his friends and brothers were in the medical profession. He spent 1 year in Nairobi, Kenya, and half a year at the National Institutes of Health in Bethesda, United States, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organ (anatomy)
In biology, an organ is a collection of tissues joined in a structural unit to serve a common function. In the hierarchy of life, an organ lies between tissue and an organ system. Tissues are formed from same type cells to act together in a function. Tissues of different types combine to form an organ which has a specific function. The intestinal wall for example is formed by epithelial tissue and smooth muscle tissue. Two or more organs working together in the execution of a specific body function form an organ system, also called a biological system or body system. An organ's tissues can be broadly categorized as parenchyma, the functional tissue, and stroma, the structural tissue with supportive, connective, or ancillary functions. For example, the gland's tissue that makes the hormones is the parenchyma, whereas the stroma includes the nerves that innervate the parenchyma, the blood vessels that oxygenate and nourish it and carry away its metabolic wastes, and the con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organ (biology)
In biology, an organ is a collection of tissues joined in a structural unit to serve a common function. In the hierarchy of life, an organ lies between tissue and an organ system. Tissues are formed from same type cells to act together in a function. Tissues of different types combine to form an organ which has a specific function. The intestinal wall for example is formed by epithelial tissue and smooth muscle tissue. Two or more organs working together in the execution of a specific body function form an organ system, also called a biological system or body system. An organ's tissues can be broadly categorized as parenchyma, the functional tissue, and stroma, the structural tissue with supportive, connective, or ancillary functions. For example, the gland's tissue that makes the hormones is the parenchyma, whereas the stroma includes the nerves that innervate the parenchyma, the blood vessels that oxygenate and nourish it and carry away its metabolic wastes, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embryoid Body
Embryoid bodies (EBs) are three-dimensional aggregates of pluripotent stem cells. EBs are differentiation of human embryonic stem cells into embryoid bodies comprising the three embryonic germ layers. Background The pluripotent cell types that comprise embryoid bodies include embryonic stem cells (ESCs) derived from the blastocyst stage of embryos from mouse (mESC), primate, and human (hESC) sources. Additionally, EBs can be formed from embryonic stem cells derived through alternative techniques, including somatic cell nuclear transfer or the reprogramming of somatic cells to yield induced pluripotent stem cells (iPS). Similar to ESCs cultured in monolayer formats, ESCs within embryoid bodies undergo differentiation and cell specification along the three germ lineages – endoderm, ectoderm, and mesoderm – which comprise all somatic cell types. In contrast to monolayer cultures, however, the spheroid structures that are formed when ESCs aggregate enables the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intestinal Organoid
The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans and other animals, including the esophagus, stomach, and intestines. Food taken in through the mouth is digested to extract nutrients and absorb energy, and the waste expelled at the anus as feces. ''Gastrointestinal'' is an adjective meaning of or pertaining to the stomach and intestines. Most animals have a "through-gut" or complete digestive tract. Exceptions are more primitive ones: sponges have small pores ( ostia) throughout their body for digestion and a larger dorsal pore (osculum) for excretion, comb jellies have both a ventral mouth and dorsal anal pores, while cnidarians and acoels have a single pore for both digestion and excretion. The human gastrointestinal tract consists of the esophagus, stomach, and intestines, and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamie A
Jamie is a unisex name. It is a diminutive form of James or, more rarely, other names. It is also given as a name in its own right. People Female * Jamie Anne Allman (born 1977), American actress * Jamie Babbit (born 1970), American film and television director * Jamie Belsito (born 1973), American politician * Jamie Bernadette, American actress and occasional producer * Jamie Bochert (born 1978), American fashion model and musician * Jamie Brewer, American actress and model * Jamie Broumas (born 1959), American jazz singer * Jamie Chadwick (born 1998), British racing driver * Jamie Chung (born 1983), American actress * Jamie Clayton (born 1978), American actress and model * Jamie Lee Curtis (born 1958), American actress and author * Jamie Dantzscher (born 1982), American artistic gymnast * Jamie Finn (born 1998, Irish footballer * Jamie Gauthier, American Democratic politician * Jamie Ginn (born 1982), American beauty queen * Jamie Gorelick (born 1950), American lawyer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesenchymal
Mesenchyme () is a type of loosely organized animal embryonic connective tissue of undifferentiated cells that give rise to most tissues, such as skin, blood or bone. The interactions between mesenchyme and epithelium help to form nearly every organ in the developing embryo. Vertebrates Structure Mesenchyme is characterized morphologically by a prominent ground substance matrix containing a loose aggregate of reticular fibers and unspecialized mesenchymal stem cells. Mesenchymal cells can migrate easily (in contrast to epithelial cells, which lack mobility), are organized into closely adherent sheets, and are polarized in an apical-basal orientation. Development The mesenchyme originates from the mesoderm. From the mesoderm, the mesenchyme appears as an embryologically primitive "soup". This "soup" exists as a combination of the mesenchymal cells plus serous fluid plus the many different tissue proteins. Serous fluid is typically stocked with the many serous elements, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LGR5
Leucine-rich repeat-containing G-protein coupled receptor 5 (LGR5) also known as G-protein coupled receptor 49 (GPR49) or G-protein coupled receptor 67 (GPR67) is a protein that in humans is encoded by the LGR5 gene. It is a member of GPCR class A receptor proteins. R-spondin proteins are the biological ligands of LGR5. LGR5 is expressed across a diverse range of tissue such as in the muscle, placenta, spinal cord and brain and particularly as a biomarker of adult stem cells in certain tissues. Gene Prior to its current naming designation, LGR5 was also known as FEX, HG38, GPR49, and GPR67. The Human LGR5 gene is 144,810 bases long and located at chromosome 12 at position 12q22-q23. Both human, rat and mouse homologs contain 907 amino acids and seven transmembrane domains. After translation, the signal peptide (amino acids 1-21) is cleaved off and the mature peptide (amino acids 22-907) inserts its transmembrane domain into the translocon membrane prior to packaging towards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UMC Utrecht
The University Medical Center Utrecht (UMCU; Dutch: ''Universitair Medisch Centrum Utrecht'') is the main hospital of the city of Utrecht, Netherlands. It is affiliated with the Utrecht University. Since the foundation of the university in 1636 an academic hospital has existed in various forms. Nowadays the UMC Utrecht comprises the academic hospital, the faculty of Medicine as well as the Wilhelmina Children's hospital. In total approximately 10,000 people work at the UMCU including medical staff, nursing staff, residents, support personnel and researchers, making it one of the largest hospitals in the Netherlands. __TOC__ Special units * Neurosurgery * Cardiothoracic surgery *Radiation oncology unit * Neonatal and pediatric surgery and intensive care * Pediatric oncology * Level I trauma center Adjacent to the UMCU lies the Central Military Hospital, or CMH, for military personnel. The UMCU also features a Major Incident Hospital (Dutch: ''Calamiteitenhospitaal''). This fac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hubrecht Institute
The Royal Netherlands Academy of Arts and Sciences ( nl, Koninklijke Nederlandse Akademie van Wetenschappen, abbreviated: KNAW) is an organization dedicated to the advancement of science and literature in the Netherlands. The academy is housed in the Trippenhuis in Amsterdam. In addition to various advisory and administrative functions it operates a number of research institutes and awards many prizes, including the Lorentz Medal in theoretical physics, the Dr Hendrik Muller Prize for Behavioural and Social Science and the Heineken Prizes. Main functions The academy advises the Dutch government on scientific matters. While its advice often pertains to genuine scientific concerns, it also counsels the government on such topics as policy on careers for researchers or the Netherlands' contribution to major international projects. The academy offers solicited and unsolicited advice to parliament, ministries, universities and research institutes, funding agencies and internationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neuron
A neuron, neurone, or nerve cell is an electrically excitable cell that communicates with other cells via specialized connections called synapses. The neuron is the main component of nervous tissue in all animals except sponges and placozoa. Non-animals like plants and fungi do not have nerve cells. Neurons are typically classified into three types based on their function. Sensory neurons respond to stimuli such as touch, sound, or light that affect the cells of the sensory organs, and they send signals to the spinal cord or brain. Motor neurons receive signals from the brain and spinal cord to control everything from muscle contractions to glandular output. Interneurons connect neurons to other neurons within the same region of the brain or spinal cord. When multiple neurons are connected together, they form what is called a neural circuit. A typical neuron consists of a cell body ( soma), dendrites, and a single axon. The soma is a compact structure, and the axo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stem Cells
In multicellular organisms, stem cells are undifferentiated or partially differentiated cells that can differentiate into various types of cells and proliferate indefinitely to produce more of the same stem cell. They are the earliest type of cell in a cell lineage. They are found in both embryonic and adult organisms, but they have slightly different properties in each. They are usually distinguished from progenitor cells, which cannot divide indefinitely, and precursor or blast cells, which are usually committed to differentiating into one cell type. In mammals, roughly 50–150 cells make up the inner cell mass during the blastocyst stage of embryonic development, around days 5–14. These have stem-cell capability. ''In vivo'', they eventually differentiate into all of the body's cell types (making them pluripotent). This process starts with the differentiation into the three germ layers – the ectoderm, mesoderm and endoderm – at the gastrulation stage. However, whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
