Monday , January 18 2021

Researchers have found a new intervention in the enlisting of cellular cells that maintain tumors that retain cells – ScienceDaily



Cancer tumors call meloid cells, an important part of the immune system to detect it as a harmful part of the body; The tumors actually make meloid cells to grow and metastasize cells. The research team led by Scientists at the Rush University Medical Center finds potential therapy in the laboratory mouse to interrupt the contracting and abnormal functions of meloid cells. The latest research findings were published in 19th 19th Nature Communications.

Meloid cells are a type of white cell that kills bacteria and cancer like invasives. "In the context of cancer, myeloid cells promote tumor growth and reduce T cell activity," says Dr. Vineout Gupta, professor and party, in research and innovation at the Department of Internal Medicine at Rush Medical College.

Dr. Gupta and Judith Varner, of the California University of California, San Diego, California, were at the University of California, San Diego, California (UCSD). Dr. Samia Khan, PhD Researcher at the Gupta Laboratory; and Dr. Michael Schmid, PhD and PhD Megan Kaneda, along with UCSD, were the first authors.

Cancers contract harmful cellulose cells, eliminating those helpful

Gupta's research focuses on integrating globally, regulating a variety of cell-receptor proteins and biological processes. In the study, the researchers have seen the integrium in CD11b, which I present in myeloid cells, and usually helps in cellular migration and the ability to fight the disease.

Here, researchers CD11b promotes the development of meloid cells in a subtype, in M1 macrophage, to function properly in order to fight tumor growth. However, tumors often disintegrate CD11b activity in the development of meloid cells in different cell types, in M2 macrophages. Although these cells are essential for the fight against diseases, cell cells continue to grow, and M2 promotes the development of new blood vessels that grow and metabolize cancer.

In previous research, agents developed to activate cellular cells "are very effective in controlling tumor growth," says Gupta, but immunotherapy does not have a universal cancer treatment. Hunting goes on.

Research has found that CD11b is critical for regulating cell meloids

In the study, the group discusses the effect of the behavior of cells affecting the presence of cancer in the CD11b activity and can be used as a new cancer treatment strategy. Using Leukadherin-1 (LA-1), which activates the CD11b in the body, using a small molecule found in the Gupta laboratory, researchers have developed a therapy to improve the CD11b function to promote Melo cells against M1 cells. It helps to create a micro-environment in a tumor zone where T cells can attack cancer.

The study used two types genetically modified mice. A set of experiments was performed with normal mouse other than CD11b. Transplanted tumors were more common in mice (normal) compared to mice tumors, CD11b suggested a tumor growth.

The reason for this difference is that the team finds that CD11b plays an important role in controlling the polarization of meloid cells in M1 or M2 macrophages. When CD11b was missing, most tumor cell meloids were M2 subtypes, which helped to grow and spread tumors.

It has helped boost CD11b activity to reduce tumor growth

In another experiment, the group used the LA-1 CD11b activity to be normal in conventional mouse types (usually) outside ordinary mice, and found that the increase in tumors significantly decreased in treated animals. Then, to ensure that their pharmacological intervention was directly related to the effects of LA1 1 CD1b, a mouse "point mutation" (genetic mutation in a single CD11b protein sequence) was created and created a situation where CD11b was activated all the time (usually it is not) in genetically modified animals.

"Simultaneously with the mouse mutation of the CD11b activity, the CD11b imitates a CD1b in ordinary apples with the administration of LA-1," says Gupta. "The results were the same," says Gupta. In both cases, tumors have been significantly reduced to suggest CD11b activation for cancer immunotherapy purposes.

In the research, LA-1 showed a great deal of promise, although Gupta will be treated by a molecule that will be treated a few years before. The results are very encouraging and will continue to motivate the group to move forward with this new approach to developing skills.

Other members of the research group were Megan M. Kaneda, Paulina Pathria, Ryan Shepard, Tiani L. Louis, Gyunghwi Woo, Chris Leem, David A. Cheresh and Sudarshan Anand at UCSD; M. Hafeez Faridi, Terese Geraghty, and Anugraha Rajagopalan Rush; and Seema Gupta, Roberto Vazquez-Padron and Mansoor Ahmed, from the University of Miami, at the Miller School of Medicine in Florida.


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