destroy cancer cells

Artificial DNA Structures Can Now Destroy Cancer Cells

Cancer is a leading cause of worldwide deaths. Nearly one out of six deaths all around the globe owes to this disease. There are families with generations being diagnosed with cancer, losing their loved ones at the hands of the fatal disease. However, modern science and researchers always try to devise a rational cure. In the process, they do view Immunotherapy as a promising way out. The latest is jamming artificial DNA structures with antibodies and instructing them to destroy cancer cells specifically. Continue with your reading task to get a detailed overview of the system.

What Is Immunotherapy?

Before starting with the latest breakthrough, getting a detailed overview of immunotherapy and understanding why researchers are so interested is important. Immunotherapy is a treatment procedure in which the person’s immune system destroys cancer cells.

The body’s immunity system is charged or boosted in a typical way, making it capable of finding out the cancer cells and attacking those. However, the researchers ensure that the immune system is activated so that it will never cause harm to the healthy cells in the body.

A Case Study – Artificial DNA Structures Comprising Antibodies Can Now Target And Destroy Cancer Cells

A research team from TMU (Technical University of Munich), LMU, and Helmholtz Munich has developed a study highlighting the potential of artificial DNA structures. When equipped with antibodies, the immune system targets the cancerous cells and destroys the same.

destroy cancer cells
Production and functional screening of 105 unique antibody combinations on a DNA chassis (Image Source:

Professor Sebastian Kobold explained that the artificial structure’s centerpiece (programmable T-cell engagers) is a small chassis comprising folded DNA strands fitted with different antibodies. Further, the team investigated the new substrates in both vitro and vivo. Below, you will get a detailed overview of how they prospered.

The Team Devised PTEs Of DNA Origami

The team went on to create PTEs (programmable T-cell engagers) using the DNA origami technique. In the process, self-folding DNA strands can assemble themselves in a pre-scheduled structure in a computer. Since the researchers can edit and reschedule the designs, they attached the antibodies separately. The antibodies attached to the tumor cell are placed on one side, and those recognized by the T-cell of the immune system are placed in the other direction.

destroy cancer cells
Programmable T-cell-mediated killing of target cells (Image source:

According to the team, the programmable T-cell engagers are highly promising when the primary motive is to destroy cancer cells. The researchers produced 105 antibodies till now and tested them to determine the success rate. As a result, 90% of cancer cells were destroyed within 24 hours. Further, they found how the PTEs can target multiple copies of the same antigen alongside a set of distinctive ones. Thus leaving space for programming more advanced recognition of the infected cells.

Advanced Control And Future Possibilities

The research team explained how they could target the tumor cells more precisely. All credit goes to the possibility of mounting various antibodies simultaneously. Further, the team mentioned that the model would be of quite a use because of the easiness of activating the immune system. The advanced control makes it easy for the researchers to differentiate the affected cells from the good ones. Thus bringing down the side effects as much as they can. Regarding the future scope, the researchers think the study will surely help them with a new direction in immunotherapy.

Currently, the research team is awaiting official permissions for clinical trials and hoping to produce positive results when applied to patients. Until then, we all must await a great decision and hope it all will work through for its best.

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