Posted on June 12, 2023 Author Melissa Pappas “Macrophages killing cancer cell” photographed by Susan Arnold. By silencing the molecular pathway that prevents macrophages from attacking our own cells, Penn Engineers have manipulated these white blood cells to eliminate solid tumors. Cancer remains one of the leading causes of death in the U.S. at over 600,000 deaths...
AMERICAN CHEMICAL SOCIETY IMAGE: A LASER PRECISELY GUIDED A “NEUTROBOT” TOWARD A NANOPARTICLE (LEFT IMAGE), WHICH WAS PICKED UP AND TRANSPORTED AWAY (RIGHT IMAGE). CREDIT: ADAPTED FROM ACS CENTRAL SCIENCE 2022, DOI: 10.1021/ACSCENTSCI.2C00468 Medicinal microrobots could help physicians better treat and prevent diseases. But most of these devices are made with synthetic materials that trigger...
By Dr. Liji Thomas, MD Reviewed by Emily Henderson, B.Sc. White cells are the immune cells of the body. Also called leukocytes, they are useful in fighting infections and belong to five types. About 100 million white cells are produced by the body each day. These include granulocytes, comprising neutrophils, basophils, and eosinophils, and the...
When a pathogen such as a bacteria invades our body, the immune system sends white blood cells to the site of the infection to clear the invader. These white blood cells first travel through our blood vessels, but at some point must pass through its wall to get into the infected tissue. How does this...
by Tel-Aviv University Proliferation metastatic tumor cells in animals with no eosinophils. Credit: Tel Aviv University A new study at Tel Aviv University found that eosinophils—a type of white blood cells—are recruited to the battle against cancer metastases in the lungs. According to the researchers, these white blood cells produce destructive proteins of their own, while at...
CELL PRESS CREDIT: JULIEN HUSSON, LADHYX, CNRS, ÉCOLE POLYTECHNIQUE, INSTITUT POLYTEC Like a well-trained soldier, a white blood cell uses specialized abilities to identify and ultimately destroy dangerous intruders, including creating a protrusion to effectively reach out, lock-on, probe, and possibly attack its prey. Researchers reporting March 16 in Biophysical Journal show in detail that these cells take seconds...
White blood cells circulate around the blood and help the immune system fight off infections. Stem cells in the bone marrow are responsible for producing white blood cells. The bone marrow then stores an estimated 80–90% of white blood cells. When an infection or inflammatory condition occurs, the body releases white blood cells to help...
Granulocyte colony-stimulating factor (G-CSF) has a significant regulatory effect not only on innate, but also on adaptive immunity. IMMANUEL KANT BALTIC FEDERAL UNIVERSITY Granulocyte colony-stimulating factor (G-CSF), which causes division and differentiation of bone marrow cells depending on the body’s need for leukocytes, has a significant regulatory effect not only on innate, but also on...
by Linda A. Johnson U.S. regulators Wednesday approved a new tuberculosis medicine that shortens and improves treatment for the hardest-to-treat cases, a worsening problem in many poor countries. It’s the first TB drug from a nonprofit group. The TB Alliance, formed to come up with better treatments, developed pretomanid with help from charities and government...
by University of Turku Contrary to prior belief, white blood cells enter the spleen primarily via vessels in the red pulp. The research results contradict ideas regarding how the spleen produces antibodies vital for the human body. The spleen is our largest lymphoid organ. Its function is to eliminate outdated red blood cells and to produce antibodies against pathogens. Outdated red blood cells...
