Immune system - Wikipedia
Nearly all organisms have some kind of immune system. Bacteria have a rudimentary immune system in the form of enzymes that protect against viral infections. Other basic immune mechanisms evolved in ancient plants and animals and remain in their modern descendants.
Immune system | Description, Function, & Facts | Britannica
6 天之前 · Immune system, the complex group of defense responses found in humans and other advanced vertebrates that helps repel disease-causing entities. Immunity from disease is conferred by two cooperative defense systems: innate immunity and acquired immunity. Learn more about the immune system’s mechanisms and evolution.
An introduction to immunology and immunopathology - PMC
The immune system refers to a collection of cells, chemicals and processes that function to protect the skin, respiratory passages, intestinal tract and other areas from foreign antigens, such as microbes (organisms such as bacteria, fungi, and parasites), viruses, cancer cells, and toxins.
Behavioural immune landscapes of inflammation | Nature
2022年1月5日 · Ultimately, behavioural profiling in vivo can guide the identification of pathogenic and non-pathogenic immune states and their underlying molecular switches, as illustrated here by the ...
In brief: How does the immune system work?
2023年6月6日 · The innate immune system provides a general defense against harmful germs and substances, so it’s also called the non-specific immune system. It mostly fights using immune cells such as natural killer cells and phagocytes (“eating cells”).
Overview of the Immune System - National Institute of Allergy …
The overall function of the immune system is to prevent or limit infection. All immune cells come from precursors in the bone marrow and develop into mature cells through a series of changes that can occur in different parts of the body.
The immune system: Cells, tissues, function, and disease
2023年11月22日 · The immune system defends the body from invaders such as viruses, bacteria, and foreign bodies. Find out how it works, what can go wrong, and how to boost immune health.
The science and medicine of human immunology | Science - AAAS
2020年9月25日 · Insights into the human immune response to vaccination, cancers, and viral infections such as COVID-19 have come from high-throughput “omics” technologies that measure the behavior of genes, mRNA (single-cell transcriptomics), proteins (proteomics), metabolites (metabolomics), cells (mass cytometry), and epigenetic modifications (ATAC-seq ...
Immune System - Harvard University
From fending off the common cold to attacking cancer cells, the immune system is an incredibly complicated and crucial part of our survival. Each time it mounts a response, the immune system must quickly and carefully orchestrate communication across vast …
Home - Immunology Explained
The American Association of Immunologists (AAI) created Immunology Explained to help you understand the core principles of the immune system and its role in health and diseases. We’re here to make immunology easier to comprehend and explain the basic science and evidence that underlies what we know about the body’s defense system.