Sentences with phrase «virus leaving a cell»

They found, to their amazement, that a virus leaving a cell would travel to another cell and merely bounce off it if it already contained the virus.

Not exact matches

In human cells and in mice, the virus infected and killed the stem cells that become a glioblastoma, an aggressive brain tumor, but left healthy brain cells alone.

Smider and colleagues took serum — blood with the cells removed, leaving antibodies behind — from four immunized cows and tested it against different types of HIV virus in a test tube.

Human placental cell line Jeg - 3 can be readily infected by a circulating strain of Zika virus (left panel) and completely protected by treatment with nanchangmycin (right panel).

Images show 4 - week - old brain organoids with no infection (left) and with Zika infection (middle, virus is green, dead stem cells are pink).

The researchers say that while inhibiting SAMHD1 would leave patients without a tool for fighting viruses, it may prevent the killing of the immune cells required to combat HIV.

Stivers knew that depleting nucleotides by breaking them down into pieces that quickly leave the cell is precisely the job of SAMHD1, a protein recently discovered in humans but thought to have first evolved in bacteria as a defense against viruses.

The researchers could tell that a single virus had travelled over more than one cell because some viruses which left a cell with an uncoloured actin tail picked up a red actin tail from another cell.

In these two microscopy images, human islets (the source of insulin cells) were poisoned with a drug to remove the insulin cells, and then treated with either an empty virus (left panel) or the therapeutic virus (right panel), and then grown in a diabetic mouse.

Instead of killing HIV, as it would do with other viruses, the CD4 cell makes more copies of HIV, which then leave to invade other CD4 cells, ad infinitum, until an irreversible, lethal cascade has been unleashed.

Brain cancer stem cells (left) are killed by Zika virus infection (image at right shows cells after Zika treatment).

When the vaccinia virus was delivered in CIK cells, it was evenly distributed throughout the tumor (left).

The hepatitis C virus hijacks the body's immune system, leaving T cells unable to function.

But she and Koyuncu instead infected cell bodies with what they called «light particles» — virus particles that had been hollowed out, leaving the envelope and tegument proteins but with no genome or core — and found that they were able to achieve the same escape from silencing.

Once docked, the viral DNA (or RNA, depending on the virus) is injected into the cell, leaving the jacket on the outside of the cell.

The image depicts an HIV - 2 virus (left) getting in contact with a dendritic cell (right).

By studying the banana lectin molecule (top left) and what made it bind to both viruses and immune system cells (bottom left), the team was able to figure out how to change the way cells bind it, to make a new version (top right) that still binds viruses but doesn't cause inflammation (bottom right).

Potato virus X TGBp1 induces plasmodesmata gating and moves between cells in several host species whereas CP moves only in N. benthamiana leaves.

During this process, the virus alters its appearance and our immune memory cells struggle to recognise it, leaving the virus free to infect us once more.

When the virus is activated by hormones or stress on the neurones, it leaves its host neurone cells intact but travels down the nerve to the skin.

• Patients must have adequate coagulation (international normalized ratio (INR) or prothrombin time (PT), partial thromboplastin time (PTT) ≤ 1.5 times ULN) • Adequate liver function (total bilirubin ≤ 1.5 times the ULN, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 2.5 times ULN Exclusion Criteria: • Presence of active / uncontrolled central nervous system involvement • History of clinically significant cardiac disease; uncontrolled hypertension • Left ventricular ejection fraction (LVEF) < 45 % • Allogeneic stem cell transplant within 100 days before first dose of study drug • Known history of human immunodeficiency virus (HIV) infection • Chronic or active hepatitis B or C, requiring antiviral therapy • Evidence of history of bleeding disorder, dialysis, or coexisting cancer that is distinct in primary site or histology from the cancer evaluated in this study • Serious, uncontrolled infection • Unresolved chronic toxicity > grade 1 from prior therapy • Use of strong CYP3A4 inhibitors or strong inducers within 7 days prior to the start of study treatment and for the duration of the study

The virus was unable to infect cells with mutant versions of an enzyme that it needs to take over the cells (left).

If HIV killed off all of the infected target cells upon transmission, the virus would die out, as there would be nowhere left for it to spread.

The virus disables or destroys the white blood cells, and leaves its host susceptible to infections.

The virus also causes a marked decrease in white blood cells, leaving affected cats susceptible to a secondary bacterial infection.

Once a dog contracts this virus, the organism begins to chip away at white cells leaving that dog open to other opportunistic infections such as the diseases mentioned above.