Many active substances in the human body are present in the form of peptides. Related study found that more than 70% of the net weight in human body is made up of proteins. Therefore, without peptide, there is no so-called bio-activity, as well as \u201clife\u201d.<\/p>\n
Generally, peptide involves in a wide range of areas of human body, such as hormones, nerves, cell growth and reproduction; its importance lies in regulating the physiological functions in vivo<\/em> and cell activation, enabling to improve in vivo<\/em> related enzymes and then promote permeability of middle membrane. In fact, peptide can ultimately produce a particular physiological effect by controlling the transcription of DNA or specific protein synthesis. Many peptides are involved in a variety of cell functions in the human body because they can synthesize cells and regulate the functional activity of cells. But, except for DOTA-cyclo(RGDfK) Acetate<\/a> and Aviptadil Acetate, how many kinds of peptides are there?<\/p>\n Cytokine Mimetic Peptide<\/strong><\/em><\/p>\n Using known cytokine receptors from peptide library to screen cytokine mimetic peptide has become a debated research in recent years. In terms of some countries, they have screened a spectrum of analog peptides, such as human erythropoietin, human thrombopoietin, human growth hormone, human nerve growth factor and interleukin-1, etc. Amino acid sequences of these mimetic peptides and their corresponding cytokine could be different, but they are possessed with cytokine activity, as well as the advantage of small molecular weight. These cytokines mimetic peptides are in preclinical or clinical studies now.<\/p>\n
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