three black mice lined up next to each other. the one on the left, fed a low-fat diet, has one small bald patch, the middle mouse, fed fish oil, has a large bald spot across its shoulders and back, and the right mouse, fed cocoa butter, has no baldness.
Fish Oil in Diet Can Cause Hair Loss in Mice, Study Finds
Katherine Irving | Jan 19, 2023 | 3 min read
The oil’s omega-3 fatty acids accumulate in the mice’s skin, triggering an immune response that causes hair loss.
An artist’s rendering of a DNA-based virus trap, represented as gray rods in a short cone-shaped arrangement. One is coated with blue molecules, likely antibodies, that adhere to a virus target. Another image shows to traps coming together to capture a red coronavirus.
“Origami” DNA Traps Could Keep Large Viruses From Infecting Cells
Natalia Mesa, PhD | Jan 18, 2023 | 4 min read
By engineering structures out of DNA, scientists could potentially prevent larger viruses, like coronaviruses and influenza viruses, from interacting with cells.
Human brain stock photo
New Insight into Brain Inflammation Inspires New Hope for Epilepsy Treatment 
Deanna MacNeil, PhD | 3 min read
Clinicians and researchers teamed up to investigate how inappropriate proinflammatory mechanisms contribute to the pathogenesis of drug-refractory epilepsy.
Rendered image of <em>Chlamydia</em>
How Chlamydia Guards Itself Against the Immune System
Natalia Mesa, PhD | Jan 2, 2023 | 4 min read
The bacterium produces a particular protein that allows it to sneak past the human immune system even while triggering inflammation.
<em>Chlamydia</em> invades a host cell, forms a membrane-bound vacuole, or inclusion, and then modifies the protein composition of the structure&rsquo;s membrane. If immune cells detect <em>Chlamydia</em> before it forms the inclusion, they trigger T cells to produce interferon-&gamma; (IFN-&gamma;), a powerful cytokine. IFN-&gamma; activates the protein mysterin (also called RFN213), which attaches ubiquitin to the inclusion membrane, signaling the cell to destroy the inclusion&rsquo;s contents by dumping them into a lysosome (left). C. trachomatis produces GarD, a protein that integrates into the inclusion membrane itself and somehow prevents mysterin from attaching ubiquitin, allowing the bacterium to evade immune destruction while continuing to multiply and eventually bursting from the cell (right).
Infographic: How Chlamydia Evades Immune Detection
Natalia Mesa, PhD | Jan 2, 2023 | 2 min read
Chlamydia trachomatis, the bacterium that causes chlamydia, hides from the immune system by cloaking itself in the host cell’s membrane then modifying the membrane’s protein composition.
Neoantigen Prediction for Precision Immunotherapies
Neoantigen Prediction for Precision Immunotherapies 
The Scientist’s Creative Services Team | 1 min read
Learn about the tools and resources researchers use to define, discover, and deploy anti-tumor immunotherapies.
illustration of T cell attached to protein
“Smarter” CAR T Cells Target Tumors with Precision
Natalia Mesa, PhD | Dec 16, 2022 | 5 min read
Two studies in mice now show that researchers can control when and where CAR T cells are active, potentially overcoming previous hurdles for CAR T–based treatments.
a white mouse sits on a blue exercise wheel, looking out onto the shavings below
Mice With a Healthy Gut Microbiome Are More Motivated to Exercise
Katherine Irving | Dec 16, 2022 | 4 min read
A neural pathway between the gut and the brain led to the release of dopamine when the mice ran on a wheel or treadmill, but only in the presence of a robust microbiome. 
Training the Immune System to Fight Chronic Diseases
Training the Immune System to Fight Chronic Diseases
The Scientist’s Creative Services Team | 1 min read
Learn how researchers analyze and engineer antibodies to better understand antibody function and development for disease therapeutics.
Panels showing different kinds of microglia
Mapping Tool Reveals Microglia’s Shape-Shifting Secrets
Angie Voyles Askham, Spectrum | Dec 14, 2022 | 4 min read
The approach could help test hypotheses about how atypical function of the brain’s immune cells contributes to autism.
Illustration of HIV virus
Viral Protein Behind Chronic Inflammation in People with HIV: Study
Natalia Mesa, PhD | Dec 12, 2022 | 3 min read
The HIV protein Nef can cause long-term genetic changes that lead to hyperreactive immune cells, according to research in human cells and mice. 
Patient-derived colon organoids from a healthy individual
Generating Mini-Guts for Drug Screening
The Scientist’s Creative Services Team and MilliporeSigma | 4 min read
Human gut organoids facilitate precise disease modeling and power high-throughput drug development efforts.
Microglia stained black
Opinion: Harnessing Microglia Cells to Stave Off Neurodegeneration
Kristine Zengeler, The Conversation | Dec 8, 2022 | 5 min read
Dialing up the activity of a protein called SYK in the brain’s “janitors” could provide an avenue to treat Alzheimer’s and other neurodegenerative diseases.
Illustration of viruses represented with different colors overlapping each other.
What Happens When You Catch More than One Virus?
Alejandra Manjarrez, PhD | Dec 7, 2022 | 8 min read
The “tripledemic” shines a spotlight on viral interference, in which one infection can block another.
3D medical illustration of peripheral blood cells: a lymphocyte (left) and a monocyte (right) surrounded by red blood cells.
PBMCs: Mononucleated and Multipurposed
Deanna MacNeil, PhD | 4 min read
Researchers employ peripheral blood mononuclear cells (PBMCs) in clinical and academic applications related to the immune system and regenerative medicine.
A woman wearing a gray sweater and a bright orange scarf and hat blows her nose vaguely in the direction of the camera. A snowy landscape can be seen behind her.
How Cold Weather May Help You Catch a Cold
Dan Robitzski | Dec 6, 2022 | 3 min read
Warm nasal cells mount stronger defenses against cold-causing coronaviruses and rhinoviruses than those exposed to cooler temperatures, an in vitro experiment finds.
four wolves cluster together in the snow next to a tree. one wolf at the front looks out into the distance.
Toxoplasma-Infected Wolves More Likely to Lead Packs, Study Finds
Katherine Irving | Nov 29, 2022 | 3 min read
The parasite appears to make infected wolves less risk-averse, potentially influencing the behavior of packs.
Understanding the Blood Cancer Genomic Landscape 
The Scientist’s Creative Services Team | 1 min read
Information about the genomic and immunological characteristics of blood cancers is helping scientists discover and develop new immunotherapies.
Image of a white cardboard box with a blue vertical stripe on the left side, the word &ldquo;Apixaban&rdquo; in blue lettering at the bottom, and a depiction of apixaban&rsquo;s molecular structure in black.
Blood Thinner Ineffective for COVID-19 Patients: Study
Dan Robitzski | Nov 28, 2022 | 2 min read
A clinical trial finds that the anticoagulant apixaban, which has been prescribed to help COVID-19 patients recover, is ineffective and in rare instances dangerous.
A brown and gray Daubenton&rsquo;s bat in midair, flying in the general direction of the camera with wings outstretched and mouth open.
Duplicated Gene Helps Bats Survive “Arms Race” With Viruses
Dan Robitzski | Nov 23, 2022 | 5 min read
Bats are known for staying healthy even while harboring viral infections. Now, research sheds light on how their unusual immune system evolved.