Tardigrade Protein Could Help Cancer Patients Handle Radiation

 A recent study by MIT and other institutions has found a way to potentially protect cancer patients from the harmful effects of radiation therapy. Scientists were inspired by tardigrades, also known as "water bears," as these tiny creatures are known for their extreme survival abilities, including resistance to radiation. Researchers identified a special protein called Dsup that protects the tardigrade's DNA from any damage. On injecting the mRNA that encodes for Dsup protein in mice, they found that it decreased radiation-induced damage by 50%. Since radiation therapy is essential for treating many types of cancer but often causes painful side effects like mouth sores or internal bleeding, this could be a game changer for cancer patients who suffer from the painful side effects of radiation treatment.

                This discovery could make radiation therapy safer and more tolerable for patients. If this technique is refined for human use, it could also help protect astronauts from space radiation or reduce damage from chemotherapy. However, there are still some challenges, like ensuring that the protein does not trigger any immune responses in humans. Therefore, more research is needed before it can become a treatment, but it's still an exciting step forward in cancer therapy.

The Power and Precision of Editing

 

Science Daily explains a new technology developed at the University of Pennsylvania that significantly advances genetic engineering. Called minimal, versatile genetic perturbation technology (mvGPT), it integrates gene editing and gene expression regulation into one platform. This means it can activate, deactivate, and precisely edit genes within the same cell. The breakthrough is particularly promising for treating complex diseases, such as cancer, cardiovascular disease, and/or autoimmune diseases, that stem from multiple genetic factors because it allows for multifaceted manipulation of the genetic code in a targeted and efficient way. This could lead to more effective therapies by addressing the underlying genetic causes of diseases directly.

Currently, the Mayo Clinic and Johns Hopkins Medicine discuss many successful treatments for these diseases, such as pharmacological therapy. This involves using drugs that can influence the pathways influenced by genetic changes, also known as targeted cancer therapies, that inhibit specific proteins produced by mutated genes. There is also immunotherapy, specifically treating cancer, which uses the body’s immune system to target and destroy cells with abnormal genetic expressions. Hormonal therapy is known to be used for conditions like diabetes or thyroid disorders to regulate hormone levels affected by genetic predispositions. Lastly, lifestyle modifications for conditions such as heart disease and diabetes are when changes in diet, exercise, and other lifestyle factors can significantly impact disease progression. Overall, these therapies have improved the quality of life and survival rates for many patients, though they don’t cure the genetic root causes of the disease. Hopefully, as genetic engineering continues to improve, these diseases could be essentially cured at the molecular level.

Links:

https://www.sciencedaily.com/releases/2025/01/250108144015.htm

https://www.mayoclinicplatform.org/2023/03/29/balancing-lifestyle-medicine-and-pharmacotherapy/

https://www.hopkinsmedicine.org/news/articles/2016/01/immunotherapy-plus-short-term-hormonal-therapy-promising-results

Neighboring Cells Alerted To Protect Themselves By Dying Cells In Fruit Fly

When a cell's DNA becomes irreversibly damaged, it goes through a process called apoptosis, or self-destructs so the damaged DNA does not replicate. TinTin Su Ph.D., and her collaborators at the University of Colorado, found that dying Drosophila melanogaster larvae cells alert neighboring cells that they could also die. They tested this by using ionized radiation (IR) to activate apoptosis in the wing imaginal disc cells, or the premature form of the fly's wings. What they found was that the neighboring cells responded by activating bantam which made it more difficult to kill by IR. They determined that receptor tyrosine kinase was behind this and the dying cells turned the receptor on. Dr. Su believes that if this protective mechanism also works in mammals, it could affect the results of using cytotoxic agents and radiation in cancer therapy.
This discovery is very interesting. The next step is to figure out if this does actually happen in mammals. It is important to figure this out because if it in fact does occur, it would make radiation for cancer much more difficult to work.


Original article: http://www.medicalnewstoday.com/releases/274633.php
Related article: http://science.howstuffworks.com/life/cellular-microscopic/apoptosis.htm