Leukopoietins

**Leukopoietin drugs** are polypeptides that stimulate the production of leukocyte cells in the bone marrow of humans and their animal reservoirs. They are synthesized outside the body in bacterial cells. In pharmacology, such drugs are called endogenous somatotropic factors. The term “leukopoietin” was introduced in the middle of the last century, when the mechanism of action of these drugs and their sources was clarified.

The first peptides were obtained by biosynthesis in the human body from simpler precursors or from products of genetic engineering. These antibodies were originally collected using bacteria with impaired secretion function. Then, through artificial selection, a series of analogs were isolated and concentrated. At the final stage, the construction of “pure” strains was used. This made it possible to obtain effective and safe drugs of a new class in terms of biological activity, tens of times superior to the bisphosphonates used today.

Some drugs