title: [Synthesis and properties of the retro-analogue of myelopeptide MP-2].
abstract: The bone marrow myelopeptide MP-2 (Leu-Val-Val-Tyr-Pro-Trp), exhibiting antitumor activity, and its retro-analogue (Trp-Pro-Tyr-Val-Val-Leu) were synthesized, and their properties were studied. The in vitro and in vivo activities of retro-MP-2 were comparable with those of MP-2. Both peptides equally restored the functional activity of T-lymphocytes inhibited by toxins released by HL-60 cells and inhibited by 70-82% the growth of various types of transplantable solid tumors: Ca-755 adenocarcinoma of the mammary gland, Lewis adenocarcinoma of the lung, and S180 sarcoma. The positions and intensities of the Cotton effects in CD spectra of the MP-2 peptide and its retro-analogue in various solvents are almost indistinguishable. The positions of extrema and integral intensities of the amide I and amide A bands in IR spectra of both peptides were practically identical. The English version of the paper: Russian Journal of Bioorganic Chemistry, 2005, vol. 31, no. 3; see also http://www.maik.ru.
authors: L A
authors: LA
authors: Fonina
authors: M V
authors: MV
authors: Ovchinnikov
authors: S A
authors: SA
authors: Gur'ianov
authors: S V
authors: SV
authors: Sychev
authors: R G
authors: RG
authors: Belevskaia
authors: E M
authors: EM
authors: Treshchalina
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy*; D000276:Adjuvants, Immunologic / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D000818:Animals; D018827:Carcinoma, Lewis Lung / Q000188:drug therapy*; D018922:HL-60 Cells; D006801:Humans; D008325:Mammary Neoplasms, Experimental / Q000188:drug therapy*; D051379:Mice; D009842:Oligopeptides / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000276:Adjuvants, Immunologic; D009842:Oligopeptides; C048617:myelopeptides