Immune evasion is a biological process by which pathogens, tumor cells, or other aberrant cells avoid detection, recognition, or elimination by the host immune system, thereby promoting persistence and proliferation. Mechanisms include antigenic variation, downregulation or loss of major histocompatibility complex (MHC) molecules, expression of immune checkpoint ligands (e.g., PD-L1), secretion of immunosuppressive cytokines, induction of regulatory T cells or myeloid-derived suppressor cells, and shielding of antigens within biofilms or physical barriers. This process critically influences infection chronicity, tumor progression, vaccine efficacy, and the outcome of host–pathogen or host–tumor coevolution.
Spring migration has taken flight, but with rising temperatures and shifting seasons, birds are adjusting when and how they migrate to keep up with a rapidly warming climate. Morgan Tingley, a professor of ecology and evolutionary ...
Ecology
Jul 6, 2026
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A research team at the University of Turku in Finland has developed a reliable laboratory model to study BAP1-deficient melanomas, which are a rare type of melanoma that evade the immune system once they have metastasized ...
Cell & Microbiology
Jun 29, 2026
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Medical advancements over the last several decades have made great strides in the treatment of HIV. Pharmaceutical treatments are able to contain and reduce a patient's viral load to the point where it is nearly undetectable. ...
Bio & Medicine
Jun 24, 2026
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Can newly identified antiviral compounds help stop some of the most dangerous mosquito-borne viruses that attack the brain? A research team led by scientists at The University of Alabama in Huntsville (UAH), a part of The ...
Molecular & Computational biology
Jun 22, 2026
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A research team from the Technion's Wolfson Faculty of Chemical Engineering has developed an original technology for treating cancer using nanoparticles that carry no drugs at all and has demonstrated its effectiveness against ...
Bio & Medicine
Jun 17, 2026
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Researchers from Skoltech—a VEB.RF group institution—and their colleagues from the U.S. and China have explained how the antibiotic resistance gene established itself in the genome of the bacterium Klebsiella pneumoniae. ...
Cell & Microbiology
Jun 10, 2026
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A key step in the origin of many pandemics occurs when an animal-borne virus infects humans and then evolves to spread more efficiently from person to person. That is why scientists and physicians keep a close watch on viruses ...
Evolution
Jun 2, 2026
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114
Few creatures inspire as much universal dislike as ticks. Though small, these parasites have an enormous impact on human and animal health. Each year, ticks spread viruses and bacteria that infect people, livestock, wildlife, ...
Molecular & Computational biology
May 31, 2026
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Scientists from St. Jude Children's Research Hospital have uncovered what gives Vibrio cholerae, the bacterium that causes cholera, the ability to colonize the human gut. The researchers found that a small RNA embedded within ...
Molecular & Computational biology
May 16, 2026
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19
Bacteria fend off invading viruses with molecular scissors that slice up viral DNA—a system called CRISPR that's become indispensable to gene editing. But viruses can fight back with a molecular trick that stops the scissors ...
Cell & Microbiology
May 8, 2026
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