Human immune cells are capable of coordinating their own movement more independently than previously thought. InFLAMES researcher Jonna Alanko has discovered that immune cells do not just passively follow the chemical cues ...
Cell & Microbiology
Sep 6, 2023
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Investigators at the Icahn School of Medicine at Mount Sinai have designed an innovative RNA-based strategy to activate dendritic cells—which play a key role in immune response—that eradicated tumors and prevented their ...
Bio & Medicine
Jul 27, 2023
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17
An international research team involving scientists from the University of Vienna, the Faculty of Physics of the University of Warsaw and University of Edinburgh has described the process of growing three-dimensional manganese ...
Earth Sciences
Jul 10, 2023
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7
Johns Hopkins Medicine scientists say they have developed a nanoparticle—an extremely tiny biodegradable container—that has the potential to improve the delivery of messenger ribonucleic acid (mRNA)-based vaccines for ...
Bio & Medicine
Jun 28, 2023
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21
In addition to an antigen, many vaccines also contain substances, called adjuvants, which stimulate the immune system. By using computer-aided molecular design and machine learning, a Chinese research team has now developed ...
Biochemistry
Mar 27, 2023
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10
Nutrition, as an impactful part of an organism's physiological state, seems to extend to all stages of life. Neural development, including the growth of dendrites and axons, is known to be metabolically demanding, but little ...
Plants & Animals
Jan 17, 2023
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18
Cancer immunotherapies, such as immune checkpoint inhibition therapy, have been attracting attention in recent years as new methods for treating cancer. However, immune checkpoint inhibition therapy is only effective in 20%–30% ...
Bio & Medicine
Oct 31, 2022
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5
Metal batteries, with active metals as anodes, are considered as one of the most promising solutions to achieve the energy upgrade of battery technologies, yet their practical applications are hindered by the dendrite problems ...
Materials Science
Oct 25, 2022
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14
Cancer cells use an unusual mechanism to migrate into new tissue and form metastases there. The same process probably also keeps some immune cells on their toes. This is the result of a recent study led by the University ...
Cell & Microbiology
Oct 14, 2022
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83
Astronomers build new telescopes and peer at the night sky to see what they might find. Janelia Group Leader Abraham Beyene takes a similar approach when looking at the cells that make up the human brain.
Bio & Medicine
Aug 25, 2022
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502
Dendrites (from Greek δένδρον déndron, “tree”) are the branched projections of a neuron that act to conduct the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project. Electrical stimulation is transmitted onto dendrites by upstream neurons via synapses which are located at various points throughout the dendritic arbor. Dendrites play a critical role in integrating these synaptic inputs and in determining the extent to which action potentials are produced by the neuron. Recent research has also found that dendrites can support action potentials and release neurotransmitters, a property that was originally believed to be specific to axons.
The long outgrowths on immune system dendritic cells are also called dendrites. These dendrites do not process electrical signals.
Certain classes of dendrites (i.e. Purkinje cells of cerebellum, cerebral cortex) contain small projections referred to as "appendages" or "spines". Appendages increase receptive properties of dendrites to isolate signal specificity. Increased neural activity at spines increases their size and conduction which is thought to play a role in learning and memory formation. There are approximately 200,000 spines per cell, each of which serve as a postsynaptic process for individual presynaptic axons.
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