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NASA experiment: Astronauts grow organs on the International Space Station for the benefit of humanity

via:天文在线     time:2021/10/26 11:15:19     readed:146

Summary: Remember the news two days ago that the Falcon 9 rocket launched the first generation of the Dragon spacecraft to resupply the International Space Station? It turned out that the Dragon spacecraft also brought human stem cells to the International Space Station. This article is about the International Space Station astronauts on the station to grow stem cells to grow human tissue and organs.

Researchers at the University of Zurich and NASA astronauts are conducting a month-long experiment

3D Sculptor/iStock

A lot has happened on the International Space Station, and one of the exciting projects NASA astronauts are working on recently is to apply the evolving three-dimensional culture to understand how weightlessness helps them grow.

This means they are growing new organs in space. The experiment attempted to grow human tissue with human stem cells sent from Earth.

Cultivate organs in space

We hope that these stem cells will eventually become bones, cartilage and other organs. Once achieved, it is hoped that the experiment will open the door to the development of organs prepared for transplant operations.

According to Carla Middot-Tell, the reason the project is being carried out in space is that weightlessness can be used as a tool. Thiel, who is working on the study, is one of two researchers at the University of Zurich.

U.S. astronaut Nick Middot; Hague and Biological Laboratory Organs (Source: NASA)

Human stem cells are encouraged to grow in a three-dimensional pattern through weightlessness. Until now, human stem cells grown on Earth have grown only in a single-layer structure.

In a mobile mini-lab, astronauts on the International Space Station are trying to grow stem cells. The lab was sent by SpaceX's Dragon spacecraft and arrived last week.

The experiment lasted a month as the astronauts watched stem cells grow. If all goes according to plan, the lab will turn to larger production. That's why NASA can use the process to produce tissue from patient cells for transplantation.

Biomanufacturing is under way on the International Space Station. We learned that microgravity allows cells to grow from two to three dimensions in space. Click on the link below to learn how it will lead to the growth of human organs in the future!

In addition, it can produce organ-like substances, and may be used in other medical experiments, as well as reduce the use of animals in drug testing and experimentation.

stem cell

Stem cells are undifferentiated biological cells that can differentiate into specific cells and can divide (by fission) to produce more stem cells. They are found in multicellular organisms. In mammals, stem cells are broadly divided into two types: embryonic stem cells isolated from intracyst clusters of the blastocyst and adult stem cells found in various tissues. In adult organisms, stem cells and progenitor cells complement adult tissue as the body's repair system. In a developing embryo, stem cells can differentiate into all specific cells---- exosome, endosperm and mid-embryo layer (reference-induced plucpotent stem cells) --- can also maintain the normal transformation of regenerative organs, such as blood, skin, or intestinal tissue.

Here are three known sources of histary stem cells in humans:

1. Bone marrow, extracted on demand, i.e. drilled into the bone (usually femur or tibia)

2. Adipose tissue (lipid cells) that need to be extracted by liposuction

3. Blood needs to be extracted by separation techniques, including blood from the donor (similar to blood donation), stem cells are extracted by machine, and the rest of the blood is returned to the donor

Stem cells can also be extracted from post-birth cord blood. Of all stem cells, the risk of self-hematic blood collection is minimal. By definition, somatic cells come from the body, just as a person can store their own blood for elective surgery.

Adult stem cells are frequently used in a variety of medical treatments (e.g. bone marrow transplants). Stem cells can now be transplanted manually and transformed into characteristic, specific cell types made up of various tissues, such as muscles and nerves. Embryonic cell lines and histo-embryonic stem cells produced from somatic cell nuclear transplantation or de-differentiation are considered promising candidates for therapy in the future. The stem cell research stems from the discoveries of Ernest middot at the University of Toronto in the 1960s; A.middot; McCulloch and James middot; E.middot; and Rothman.

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