TY - JOUR AU - Wéber, Edit AU - Hetényi, Anasztázia AU - Váczi, Balázs AU - Szolnoki, Éva Tünde AU - Fajka-Boja, Roberta AU - Tubak, Vilmos AU - Monostori, Éva AU - Martinek, Tamás TI - Galectin-1-Asialofetuin Interaction Is Inhibited by Peptides Containing the Tyr-Xxx-Tyr Motif Acting on the Glycoprotein JF - CHEMBIOCHEM J2 - CHEMBIOCHEM VL - 11 PY - 2010 IS - 2 SP - 228 EP - 234 PG - 7 SN - 1439-4227 DO - 10.1002/cbic.200900502 UR - https://m2.mtmt.hu/api/publication/1321061 ID - 1321061 N1 - Chemicals/CAS: galectin 1, 258495-34-0; tyrosine, 16870-43-2, 55520-40-6, 60-18-4; Asialoglycoproteins; Galectin 1; Glycoproteins; Peptides; Recombinant Proteins; Tyrosine, 55520-40-6; alpha-Fetoproteins; asialofetuin Funding Agency and Grant Number: Hungarian Academy of Sciences; Hungarian Scientific Research Fund [K 69047, PD 75938]; NKTH-OTKA [CK 78188]; OTKA NF [69316]\n Funding text: A.H. and T.A.M. acknowledge the award of Janos Bolyai Research Fellowships by the Hungarian Academy of Sciences. This work was supported by grants from the Hungarian Scientific Research Fund (OTKA K 69047, PD 75938, NKTH-OTKA CK 78188, and OTKA NF 69316).\n AB - Galectin-1 (Gal-1), a ubiquitous P-galactoside-binding protein expressed by various normal and pathological tissues, has been implicated in cancer and autoimmune/inflammatory diseases in consequence of its regulatory role in adhesion, cell viability, proliferation, and angiogenesis. The functions of Gal-1 depend on its affinity for P-galactoside-containing glycoconjugates; accordingly, the inhibition of sugar binding blocks its functions, hence promising potential therapeutic tools. The Tyr-Xxx-Tyr peptide motifs have been reported to be glycomimetic sequences, mainly on the basis of their inhibitory effect on the Gal-1-asialofetuin (ASF) interaction. However, the results regarding the efficacy of the Tyr-Xxx-Tyr motif as a glycomimetic inhibitor are still controversial. The present STD and trNOE NMR experiments reveal that the Tyr-Xxx-Tyr peptides studied do not bind to Gal-1, whereas their binding to ASF is clearly detected. N-15,H-1 HSQC titrations with N-15-labeled Gal-1 confirm the absence of any peptide-Gal-1 interaction. These data indicate that the Tyr-Xxx-Tyr peptides tested in this work are not glycomimetics as they interact with ASF via an unrevealed molecular linkage. LA - English DB - MTMT ER - TY - JOUR AU - Kurucz, Judit Éva AU - Váczi, Balázs AU - Márkus, Róbert AU - Laurinyecz, Barbara AU - Vilmos, Péter AU - Zsámboki, János AU - Csorba, Kinga AU - Gateff, E AU - Hultmark, D AU - Andó, István TI - Definition of Drosophila hemocyte subsets by cell-type specific antigens JF - ACTA BIOLOGICA HUNGARICA (1983-2018) J2 - ACTA BIOL HUNG VL - 58 PY - 2007 IS - Suppl. 1 SP - 95 EP - 111 PG - 17 SN - 0236-5383 DO - 10.1556/ABiol.58.2007.Suppl.8 UR - https://m2.mtmt.hu/api/publication/1915261 ID - 1915261 AB - We analyzed the heterogeneity of Drosophila hemocytes on the basis of the expression of cell-type specific antigens. The antigens characterize distinct subsets which partially overlap with those defined by morphological criteria. Oil the basis of the expression or the lack of expression of blood cell antigens the following hemocyte populations have been defined: crystal cells, plasmalocytes, lamellocytes and precursor cells. The expression of the antigens and thus the different cell types are developmentally regulated. The hemocytes are arranged ill four main compartments: the circulating blood cells, the sessile tissue, the lymph glands and the posterior hematopoietic tissue. Each hemocyte compartment has a specific and characteristic composition of the various cell types. The described markers represent the first successful attempt to define hemocyte lineages by immunological markers in Drosophila and help to define morphologically, functionally, spatially and developmentally distinct subsets of hemocyles. LA - English DB - MTMT ER - TY - JOUR AU - Andó, István AU - Laurinyecz, Barbara AU - Márkus, Róbert AU - Rus, Florentina AU - Váczi, Balázs AU - Zsámboki, János AU - Kurucz, Judit Éva TI - Ősi örökségünk a veleszületett immunitás : a Drosophila immunrendszere JF - MAGYAR TUDOMÁNY J2 - MAGYAR TUDOMÁNY VL - 111 PY - 2004 SP - 1080 EP - 1089 PG - 10 SN - 0025-0325 UR - https://m2.mtmt.hu/api/publication/1913689 ID - 1913689 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Andó, István AU - Laurinyecz, Barbara AU - Nagy, István AU - Márkus, Róbert AU - FLORENTINA, R AU - Váczi, Balázs AU - Zsámboki, János AU - FEHER, L AU - GATEFF, E AU - Kurucz, Judit Éva TI - Ősi örökségünk a veleszületett immunitás. A Drosophila immunrendszere JF - MAGYAR IMMUNOLÓGIA J2 - MAGYAR IMMUNOLÓGIA VL - 2 PY - 2003 IS - 4 SP - 39 EP - 45 PG - 7 SN - 1588-3280 UR - https://m2.mtmt.hu/api/publication/1912996 ID - 1912996 LA - Hungarian DB - MTMT ER -