Source：“Cells’ Kingdom”

Maybe you can’t feel it, but your body is indeed undergoing dynamic changes all the time. When eating, sleeping, healthy or sick... Cells are either regenerating, growing, proliferating, or acting as "health guards" and fighting bravely. Especially those immune cells, are not idle for a moment.

The way a cell responds to foreign objects and how to destroy it will surprise you. Let's see how they act.

01

Immune cells not only resist and destroy germs that invade the human body, but also eliminate their own decaying and cancerous cells.

02

This GIF shows the process of eosinophils gradually gathering around a Caenorhabditis elegans and attacking it under the "perception" of chemotaxis. There are "tens of thousands" of eosinophils gathered around the nematode, like a group of ants, fighting a "siege war."

03

This is a process of neutrophils chasing Staphylococcus aureus. Are immune cells super cute when they capture bacteria?

04

Immune cells can also go to the "battlefield" through the walls of blood vessels, marching toward the inflammatory and traumatic tissues, and encircling them.

05

Immune cells also swell, explode and divide when they die.

06

The "Kiss of Death" of T cells. Cytotoxic T cells (also known as "killer T cells") are recognizing "abnormal cells" such as virus infections, cancerous changes, and so on, leading to cell death. The actual time for the entire process is about 75 minutes.

07

Under the microscope, "on the ground" filmed a scene of the immune cell war, the immune system vs. cancer cells. It's really "fire."

08

Specific immune response (antigen antibody binding)

09

This GIF picture shows the earliest developmental stage of human embryos, cell division and proliferation changes.

10

Cell mitosis. Through mitosis, epithelial cells can accurately copy each chromosome into two chromatids and divide them equally into two daughter cells, so that the daughter cells contain the same genetic information as the mother cell.

11

Beating heart cells

Cardiomyocytes cultured in vitro often exhibit spontaneous pulsation, and the pulsation of cardiomyocytes in the same culture dish is often synchronized. Therefore, cardiomyocytes are used as indicator cells for mesoderm differentiation to measure the differentiation of pluripotent stem cells into mesoderm. potential.

12

The wonderful encounter between nerve cells and calcium ions

Calcium ions have always been the most important "signal ion" of nerve cells. The calcium ion probe is put into nerve cells through microinjection technology, so that the probe and calcium ions interact to produce fluorescence. It spreads outwards quickly like water waves.

13

The dynamic picture of parasites in human body. Do you feel a little itchy now?

14

NK cells kill cancer cells. Under the ultra-high-definition microscope, NK cells attack and destroy cancer cells.

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