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Microbial symbiosis and immunity

Index Microbial symbiosis and immunity

There are close and often long-term relationships between symbiotic microbes and their host's immune system. [1]

84 relations: Anatomical terms of location, Antibiotic, Antimicrobial peptides, Antimicrobial resistance, Archaea, B cell, Bacteria, Bacteriocin, Bacteroides fragilis, Beta defensin, Bone marrow, Cancer, Carbohydrate, CCL20, Cell wall, Clostridium difficile (bacteria), Colitis, Commensalism, Cytokine, Dendritic cell, Disease, DNA repair, Electrochemical gradient, ELISA, Esophagus, Eukaryote, Exotoxin, Fucose, Gastrointestinal tract, Gene, Genomics, Germinal center, Gram-negative bacteria, Gram-positive bacteria, Homeostasis, Hypersensitivity, IL-10 family, IL17A, Ileum, Immune system, Immune tolerance, Immunoglobulin A, Inflammatory bowel disease, Interleukin 23 subunit alpha, Interspecies communication, Intestinal epithelium, Ion channel, Jejunum, Knockout mouse, Lamina propria, ..., Large intestine, Lipid II, Lymph, Methicillin-resistant Staphylococcus aureus, Microbiota, Microfold cell, Mouth, Mutualism (biology), MYD88, NF-κB, NOD1, Parasitism, Pathogen, Peptidoglycan, Peyer's patch, Pharynx, Plasma cell, Prostaglandin, Ribosome, Small intestine, Spleen, Splenocyte, Staphylococcus epidermidis, Stomach, Symbiosis, T helper 17 cell, T helper cell, TLR2, TLR4, Toll-like receptor, Tumor necrosis factor alpha, Tumor necrosis factor superfamily, Vagina, Virus. Expand index (34 more) »

Anatomical terms of location

Standard anatomical terms of location deal unambiguously with the anatomy of animals, including humans.

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Antibiotic

An antibiotic (from ancient Greek αντιβιοτικά, antibiotiká), also called an antibacterial, is a type of antimicrobial drug used in the treatment and prevention of bacterial infections.

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Antimicrobial peptides

Antimicrobial peptides (AMPs), also called host defense peptides (HDPs) are part of the innate immune response found among all classes of life.

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Antimicrobial resistance

Antimicrobial resistance (AMR or AR) is the ability of a microbe to resist the effects of medication that once could successfully treat the microbe.

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Archaea

Archaea (or or) constitute a domain of single-celled microorganisms.

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B cell

B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype.

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Bacteria

Bacteria (common noun bacteria, singular bacterium) is a type of biological cell.

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Bacteriocin

Bacteriocins are proteinaceous or peptidic toxins produced by bacteria to inhibit the growth of similar or closely related bacterial strain(s).

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Bacteroides fragilis

Bacteroides fragilis is an obligately anaerobic, Gram-negative, rod-shaped bacterium.

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Beta defensin

Beta defensins are a family of mammalian defensins.

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Bone marrow

Bone marrow is a semi-solid tissue which may be found within the spongy or cancellous portions of bones.

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Cancer

Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.

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Carbohydrate

A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water); in other words, with the empirical formula (where m may be different from n).

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CCL20

Chemokine (C-C motif) ligand 20 (CCL20) or liver activation regulated chemokine (LARC) or Macrophage Inflammatory Protein-3 (MIP3A) is a small cytokine belonging to the CC chemokine family.

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Cell wall

A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane.

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Clostridium difficile (bacteria)

Clostridium difficile (etymology and pronunciation), also known as C. difficile, C. diff, or sometimes CDF/cdf, is a species of Gram-positive spore-forming bacterium.

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Colitis

Colitis is an inflammation of the colon.

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Commensalism

Commensalism is a long term biological interaction (symbiosis) in which members of one species gain benefits while those of the other species are neither benefited nor harmed.

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Cytokine

Cytokines are a broad and loose category of small proteins (~5–20 kDa) that are important in cell signaling.

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Dendritic cell

Dendritic cells (DCs) are antigen-presenting cells (also known as accessory cells) of the mammalian immune system.

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Disease

A disease is any condition which results in the disorder of a structure or function in an organism that is not due to any external injury.

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DNA repair

DNA repair is a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome.

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Electrochemical gradient

An electrochemical gradient is a gradient of electrochemical potential, usually for an ion that can move across a membrane.

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ELISA

The enzyme-linked immunosorbent assay (ELISA) is a test that uses antibodies and color change to identify a substance.

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Esophagus

The esophagus (American English) or oesophagus (British English), commonly known as the food pipe or gullet (gut), is an organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach.

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Eukaryote

Eukaryotes are organisms whose cells have a nucleus enclosed within membranes, unlike Prokaryotes (Bacteria and other Archaea).

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Exotoxin

An exotoxin is a toxin secreted by bacteria.

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Fucose

Fucose is a hexose deoxy sugar with the chemical formula C6H12O5.

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Gastrointestinal tract

The gastrointestinal tract (digestive tract, digestional tract, GI tract, GIT, gut, or alimentary canal) is an organ system within humans and other animals which takes in food, digests it to extract and absorb energy and nutrients, and expels the remaining waste as feces.

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Gene

In biology, a gene is a sequence of DNA or RNA that codes for a molecule that has a function.

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Genomics

Genomics is an interdisciplinary field of science focusing on the structure, function, evolution, mapping, and editing of genomes.

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Germinal center

Germinal centers or germinal centres (GCs) are sites within secondary lymphoid organs – lymph nodes and the spleen where mature B cells proliferate, differentiate, and mutate their antibody genes (through somatic hypermutation aimed at achieving higher affinity), and switch the class of their antibodies (for example from IgM to IgG) during a normal immune response to an infection.

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Gram-negative bacteria

Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the gram-staining method of bacterial differentiation.

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Gram-positive bacteria

Gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their cell wall.

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Homeostasis

Homeostasis is the tendency of organisms to auto-regulate and maintain their internal environment in a stable state.

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Hypersensitivity

Hypersensitivity (also called hypersensitivity reaction or intolerance) refers to undesirable reactions produced by the normal immune system, including allergies and autoimmunity.

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IL-10 family

The IL10 family is a family of interleukins.

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IL17A

Interleukin-17A is a protein that in humans is encoded by the IL17A gene.

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Ileum

The ileum is the final section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds.

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Immune system

The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease.

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Immune tolerance

Immune tolerance, or immunological tolerance, or immunotolerance, is a state of unresponsiveness of the immune system to substances or tissue that have the capacity to elicit an immune response in given organism.It is induced by prior exposure to that specific antigen.

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Immunoglobulin A

Immunoglobulin A (IgA, also referred to as sIgA in its secretory form) is an antibody that plays a crucial role in the immune function of mucous membranes.

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Inflammatory bowel disease

Inflammatory bowel disease (IBD) is a group of inflammatory conditions of the colon and small intestine.

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Interleukin 23 subunit alpha

Interleukin-23 subunit alpha is a protein that in humans is encoded by the IL23A gene.

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Interspecies communication

Interspecies communication is communication between different species of animals, plants, or microorganisms.

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Intestinal epithelium

The intestinal epithelium is the layer of cells that forms the luminal surface or lining of both the small and large intestine (colon) of the gastrointestinal tract.

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Ion channel

Ion channels are pore-forming membrane proteins that allow ions to pass through the channel pore.

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Jejunum

The jejunum is the second part of the small intestine in humans and most higher vertebrates, including mammals, reptiles, and birds.

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Knockout mouse

A knockout mouse or knock-out mouse is a genetically modified mouse (Mus musculus) in which researchers have inactivated, or "knocked out", an existing gene by replacing it or disrupting it with an artificial piece of DNA.

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Lamina propria

The lamina propria is a thin layer of connective tissue that forms part of the moist linings known as mucous membranes or mucosa, which line various tubes in the body, such as the respiratory tract, the gastrointestinal tract, and the urogenital tract.

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Large intestine

The large intestine, also known as the large bowel or colon, is the last part of the gastrointestinal tract and of the digestive system in vertebrates.

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Lipid II

Lipid II is a precursor molecule in the synthesis of the cell wall of bacteria.

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Lymph

Lymph is the fluid that circulates throughout the lymphatic system.

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Methicillin-resistant Staphylococcus aureus

Methicillin-resistant Staphylococcus aureus (MRSA) refers to a group of gram-positive bacteria that are genetically distinct from other strains of Staphylococcus aureus.

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Microbiota

A microbiota is an "ecological community of commensal, symbiotic and pathogenic microorganisms" found in and on all multicellular organisms studied to date from plants to animals.

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Microfold cell

Microfold cells (or M cells) are found in the gut-associated lymphoid tissue (GALT) of the Peyer's patches in the small intestine, and in the mucosa-associated lymphoid tissue (MALT) of other parts of the gastrointestinal tract.

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Mouth

In animal anatomy, the mouth, also known as the oral cavity, buccal cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds.

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Mutualism (biology)

Mutualism or interspecific cooperation is the way two organisms of different species exist in a relationship in which each individual benefits from the activity of the other.

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MYD88

Myeloid differentiation primary response 88 (MYD88) is a protein that, in humans, is encoded by the MYD88 gene.

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NF-κB

NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) is a protein complex that controls transcription of DNA, cytokine production and cell survival.

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NOD1

Nucleotide-binding oligomerization domain-containing protein 1 (NOD1) is a protein receptor that in humans is encoded by the NOD1 gene.

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Parasitism

In evolutionary biology, parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.

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Pathogen

In biology, a pathogen (πάθος pathos "suffering, passion" and -γενής -genēs "producer of") or a '''germ''' in the oldest and broadest sense is anything that can produce disease; the term came into use in the 1880s.

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Peptidoglycan

Peptidoglycan, also known as murein, is a polymer consisting of sugars and amino acids that forms a mesh-like layer outside the plasma membrane of most bacteria, forming the cell wall.

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Peyer's patch

Peyer's patches (or aggregated lymphoid nodules, or occasionally PP for brevity) are organized lymphoid follicles, named after the 17th-century Swiss anatomist Johann Conrad Peyer.

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Pharynx

The pharynx (plural: pharynges) is the part of the throat that is behind the mouth and nasal cavity and above the esophagus and the larynx, or the tubes going down to the stomach and the lungs.

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Plasma cell

Plasma cells, also called plasma B cells, plasmocytes, plasmacytes, or effector B cells, are white blood cells that secrete large volumes of antibodies.

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Prostaglandin

The prostaglandins (PG) are a group of physiologically active lipid compounds having diverse hormone-like effects in animals.

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Ribosome

The ribosome is a complex molecular machine, found within all living cells, that serves as the site of biological protein synthesis (translation).

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Small intestine

The small intestine or small bowel is the part of the gastrointestinal tract between the stomach and the large intestine, and is where most of the end absorption of food takes place.

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Spleen

The spleen is an organ found in virtually all vertebrates.

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Splenocyte

A splenocyte can be any one of the different white blood cell types as long as it is situated in the spleen or purified from splenic tissue.

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Staphylococcus epidermidis

Staphylococcus epidermidis is a Gram-positive bacterium, and one of over 40 species belonging to the genus Staphylococcus.

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Stomach

The stomach (from ancient Greek στόμαχος, stomachos, stoma means mouth) is a muscular, hollow organ in the gastrointestinal tract of humans and many other animals, including several invertebrates.

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Symbiosis

Symbiosis (from Greek συμβίωσις "living together", from σύν "together" and βίωσις "living") is any type of a close and long-term biological interaction between two different biological organisms, be it mutualistic, commensalistic, or parasitic.

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T helper 17 cell

T helper 17 cells (Th17) are a subset of pro-inflammatory T helper cells defined by their production of interleukin 17 (IL-17).

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T helper cell

The T helper cells (Th cells) are a type of T cell that play an important role in the immune system, particularly in the adaptive immune system.

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TLR2

Toll-like receptor 2 also known as TLR2 is a protein that in humans is encoded by the TLR2 gene.

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TLR4

Toll-like receptor 4 is a protein that in humans is encoded by the TLR4 gene.

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Toll-like receptor

Toll-like receptors (TLRs) are a class of proteins that play a key role in the innate immune system.

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Tumor necrosis factor alpha

Tumor necrosis factor (TNF, tumor necrosis factor alpha, TNFα, cachexin, or cachectin) is a cell signaling protein (cytokine) involved in systemic inflammation and is one of the cytokines that make up the acute phase reaction.

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Tumor necrosis factor superfamily

The tumor necrosis factor (TNF) superfamily is a protein superfamily of type II transmembrane proteins containing TNF homology domain and forming trimers.

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Vagina

In mammals, the vagina is the elastic, muscular part of the female genital tract.

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Virus

A virus is a small infectious agent that replicates only inside the living cells of other organisms.

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References

[1] https://en.wikipedia.org/wiki/Microbial_symbiosis_and_immunity

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